CN114523697A - Resin continuous injection device and method - Google Patents
Resin continuous injection device and method Download PDFInfo
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- CN114523697A CN114523697A CN202210201888.XA CN202210201888A CN114523697A CN 114523697 A CN114523697 A CN 114523697A CN 202210201888 A CN202210201888 A CN 202210201888A CN 114523697 A CN114523697 A CN 114523697A
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- 238000002347 injection Methods 0.000 title claims abstract description 108
- 239000007924 injection Substances 0.000 title claims abstract description 108
- 239000011347 resin Substances 0.000 title claims abstract description 65
- 229920005989 resin Polymers 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 210000001503 joint Anatomy 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Images
Classifications
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
- B29C70/548—Measures for feeding or distributing the matrix material in the reinforcing structure using distribution constructions, e.g. channels incorporated in or associated with the mould
-
- 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
- B29C45/20—Injection nozzles
-
- 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
- B29C45/20—Injection nozzles
- B29C45/23—Feed stopping equipment
-
- 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
- B29C45/20—Injection nozzles
- B29C45/24—Cleaning equipment
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a resin continuous injection device and a method, the device comprises an injector body and a control rod, the injector body comprises a control end and a butt joint end for butt joint with a mould, the injector body is provided with an injection channel, a feeding channel and a discharging channel; one port of the injection channel is arranged on the end face of the butt joint end, and the other port of the injection channel is arranged on the end face of the control end; one port of the feed channel is communicated with the injection channel, and the other port of the feed channel is used for being communicated with a raw material supply source and a cleaning solution supply source; one port of the discharge channel is communicated with the injection channel, and the other port of the discharge channel is arranged on the outer surface of the injector body. The control rod is connected with the injection channel in a sliding way; the control rod is provided with a circulation structure, and the circulation structure can be matched with the inner wall of the injection passage to form a closed circulation cavity; when the control rod moves to a first preset position, the feeding channel and the discharging channel are communicated with the circulating cavity; when the control rod moves to the second preset position, the feeding channel is communicated with the injection channel, and the control rod blocks the discharge channel.
Description
Technical Field
The invention belongs to the field of composite materials, and particularly relates to a resin continuous injection device and a method.
Background
In a resin transfer molding process (RTM) in composite material molding, a resin is poured into a reinforcing fiber preform placed in a mold, and after the reinforcing fiber preform is completely wrapped with the resin, the resin is heated and cured to form a composite material. Since the piping for introducing the resin into the mold and the injection port of the mold are also blocked by the solidified resin after each resin injection, the piping and the injection port need to be replaced and unblocked after each mold product is completed. Such operation makes the production of the composite material non-continuous and the production efficiency is low.
In the prior art, a V-shaped or L-shaped self-cleaning resin mixer is used, resin is sprayed and atomized at high pressure through two spray heads, and a mold is filled after impact mixing in the atomization process. However, the manufacturing cost, the use cost and the matching cost of the V-shaped or L-shaped self-cleaning resin mixer are high. In addition, the injection pressure is increased to high pressure by a booster pump and then is released by one-time injection, and the pressure is not continuous, so that the phenomena of air inclusion, non-full filling, non-penetration filling, surface pinholes and the like are easy to occur in the filling process, and the quality of the composite material product cannot be ensured.
Disclosure of Invention
The present invention is directed to overcoming the disadvantages of the prior art, and a first aspect of the present invention provides a resin continuous injection apparatus and method, which can achieve continuous injection of resin, thereby improving the production efficiency of composite materials.
In a first aspect, the present application provides a resin continuous injection device, which includes an injector body and a control rod, wherein the injector body includes an opposite control end and a butt end, the butt end is used for butt joint with a mold, and the injector body is provided with an injection channel, a feeding channel and a discharging channel; one port of the injection channel is formed in the end face of the butt joint end, and the other port of the injection channel is formed in the end face of the control end; one port of the feeding channel is communicated with the injection channel, and the other port of the feeding channel is used for being communicated with a raw material supply source and a cleaning solution supply source; one port of the discharge channel is communicated with the injection channel, and the other port of the discharge channel is arranged on the outer surface of the injector body. The control rod is connected with the injection channel in a sliding way; the control rod is provided with a circulation structure, and the circulation structure can be matched with the inner wall of the injection channel to form a closed circulation cavity; when the control rod moves to a first preset position, the feeding channel and the discharging channel are communicated with the circulating cavity; when the control rod moves to a second preset position, the feeding channel is communicated with the injection channel, and the control rod blocks the discharge channel.
It can be seen that the injection channel, the feeding channel and the discharging channel which are communicated with each other are arranged on the injector body, the communication relation of the injection channel, the feeding channel and the discharging channel is controlled through the control rod, the injection channel, the feeding channel and the discharging channel is automatically cleaned after the injection, the next injection is continued, the pipeline is not required to be manually replaced and the dredging is not required, and therefore the continuous injection of resin and the continuous production of composite materials can be achieved.
In a possible embodiment, the control rod comprises a flow section, the flow structure is an annular groove formed on the flow section, two ends of the annular groove are respectively provided with a protruding part, and the outer diameter of the protruding part is equal to the inner diameter of the injection channel.
In a possible embodiment, the control rod comprises a flow section having a diameter equal to the inner diameter of the injection channel; the circulation structure is a circulation channel arranged on the circulation section, when the control rod moves to a first preset position, one port of the circulation channel is communicated with the feeding channel, and the other port of the circulation channel is communicated with the discharging channel.
In a possible embodiment, the control end is provided with a limiting part, the radial dimension of the limiting part is larger than the inner diameter of the injection channel, and when the limiting part abuts against the end surface of the control end, the control rod moves to a first preset position.
In a possible embodiment, the control device further comprises a driving mechanism connected to the control rod for controlling the control rod to switch between the first predetermined position and the second predetermined position.
In a possible embodiment, the butt end is provided with a first connecting portion for detachable connection with a second connecting portion on the mold.
In a possible embodiment, the first connecting portion is an external thread provided on an outer surface of the butt end, and the second connecting portion is an internal thread provided on the mold.
In one possible embodiment, the above resin continuous injection apparatus further comprises a compressed air supply source for communicating with the feed channel.
In a possible embodiment, the above resin continuous injection apparatus further comprises a waste liquid recovery container for communicating with the liquid discharge channel.
In a second aspect, the present application also provides a resin continuous injection method for performing injection using the resin continuous injection apparatus according to any one of the embodiments of the first aspect, the method including:
step 1: butting the butting end with an injection port of a mold, and moving the control rod to a first preset position;
step 2: starting the raw material supply source to inject resin into the feeding channel, so that the resin flows through the circulation cavity and is discharged from the discharge channel;
and step 3: after the resin flows stably, the control rod is moved to a second preset position, so that the resin flows through the injection channel from the feeding channel and enters the die;
and 4, step 4: after the resin is filled in the mold, moving the control rod to the first preset position;
and 5: closing the raw material supply source, and starting the cleaning liquid supply source to clean the feeding channel, the flow structure and the discharge channel;
and (5) repeating the steps 2 to 5 to perform resin continuous injection.
Therefore, the method can realize the continuous injection of the resin, thereby improving the production efficiency of the composite material.
Drawings
Fig. 1 is a schematic structural view of an injection body of the resin continuous injection apparatus of the present invention.
Fig. 2 is a schematic view of a control lever of the resin continuous injection apparatus in a first predetermined position.
Fig. 3 is a schematic view of a control lever of the resin continuous injection apparatus in a second predetermined position.
Reference numerals: 100-an injector body; 110-a control terminal; 120-a butt end; 130-an injection channel; 140-a feed channel; 150-a discharge channel; 200-a control lever; 210-an annular groove; 220-a boss; 230-a limiting part; 160-first connection.
Detailed Description
Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a structure of an injection body of a resin continuous injection apparatus according to the present invention, fig. 2 is a schematic view illustrating a control lever of the resin continuous injection apparatus at a first predetermined position, and fig. 3 is a schematic view illustrating the control lever of the resin continuous injection apparatus at a second predetermined position. Arrows in fig. 2 and 3 indicate the flow path of the resin. The application provides a resin continuous injection device, which comprises an injector body 100 and a control rod 200, wherein the injector body 100 comprises a control end 110 and a butt joint end 120 which are opposite, the butt joint end 120 is used for butt joint with a mould, and the injector body 100 is provided with an injection channel 130, a feeding channel 140 and a discharging channel 150; one port of the injection channel 130 is opened on the end surface of the docking end 120, and the other port is opened on the end surface of the control end 110; one port of the feed channel 140 communicates with the injection channel 130, and the other port is used for communicating with a raw material supply source and a cleaning solution supply source; one port of the discharge passage 150 communicates with the injection passage 130, and the other port opens on the outer surface of the syringe body 100. The control rod 200 is slidably connected with the injection channel 130; the control rod 200 is provided with a flow structure which can be matched with the inner wall of the injection passage 130 to form a closed flow cavity; when the control rod 200 is moved to the first predetermined position, the feed channel 140 and the discharge channel 150 are communicated with the circulation chamber; when the lever 200 is moved to the second predetermined position, the feed channel 140 is in communication with the injection channel 130 and the lever 200 blocks the discharge channel 150.
In the above embodiment, when the injection is started, the butt end 120 of the injector body 100 is connected to the butt interface of the mold, so that the injection passage 130 of the injector body 100 communicates with the mold. The lever 200 is moved to the first predetermined position and the material supply is then turned on, which feeds resin material into the feed channel 140, through the flow-through chamber, and out of the discharge channel 150. After the resin flows stably, the control rod 200 is moved to the second preset position, at this time, the feeding channel 140 is communicated with the injection channel 130, the raw material flows from the injection channel 130 to the butt end 120 and further flows into the mold, after the mold is filled up, the control rod 200 is moved to the first preset position again, the raw material supply source is closed, the cleaning solution supply source is opened, and the cleaning solution flows through the feeding channel 140 and the circulation cavity and finally flows out from the discharge channel 150. And after the resin in the mold is cured, taking out the composite material product, cleaning the mold, putting the next reinforced fiber preform, and repeating the operations to realize the continuous injection of the resin and the continuous production of the composite material.
It can be seen that, according to the present application, the injector body 100 is provided with the injection channel 130, the feeding channel 140 and the discharging channel 150 which are communicated with each other, and the communication relationship of the three is controlled by the control rod 200, so that the injector body is automatically cleaned after injection, and then the next injection is continued without manually replacing the pipeline and dredging the pipeline, so that the continuous injection of the resin and the continuous production of the composite material can be realized, and the production efficiency of the composite material can be further improved.
Alternatively, the cleaning solution may be water, or a mixed solution formed by adding a cleaning agent to water.
Alternatively, the raw material supply source communicates with the injection passage 130 through a first pipe on which a first valve is provided. The cleaning solution supply source is communicated with the injection passage 130 through a second pipe provided with a second valve.
In one possible embodiment, the control rod 200 includes a flow section, the flow structure is an annular groove 210 opened on the flow section, both ends of the annular groove 210 are respectively formed with a protrusion 220, and the outer diameter of the protrusion 220 is equal to the inner diameter of the injection passage 130.
In the above implementation process, the annular groove 210 is matched with the inner wall of the injection passage 130 to form an annular flow-through cavity, and the protrusions 220 at the two ends of the annular groove 210 are tightly matched with the inner wall of the injection passage 130 to close the flow-through cavity. The control rod 200 is provided with the annular groove 210 to form circulation, so that the structure is simple and the processing is easy.
In one possible embodiment, the control rod 200 comprises a flow-through section having a diameter equal to the inner diameter of the injection channel 130; the flow structure is a flow channel opened on the flow section, and when the lever 200 is moved to the first predetermined position, one port of the flow channel communicates with the feed channel 140 and the other port communicates with the discharge channel 150.
Alternatively, the axis of the flow channel may be a straight line or a curved line, which is not limited in the present application.
In one possible embodiment, the control end 110 is provided with a stopper 230, the radial dimension of the stopper 230 is larger than the inner diameter of the injection channel 130, and the control rod 200 moves to the first predetermined position when the stopper 230 abuts against the end face of the control end 110.
In the implementation process, when the control rod 200 moves to the first preset position, the end surface of the control end 110 abuts against the limiting part 230 to prevent the control rod 200 from further advancing, so that the control rod 200 is limited, and the control rod device is simple in structure and convenient to operate.
In a possible embodiment, a driving mechanism is further included, which is connected to the control lever 200 for controlling the control lever 200 to switch between the first predetermined position and the second predetermined position.
In the implementation process, the position of the control rod 200 is controlled by the driving mechanism, the automation degree is high, the control precision is high, and accurate limitation can be realized without additionally arranging a limiting structure.
Alternatively, the drive mechanism is a cylinder or an electric cylinder, or other engine that can control the process.
In one possible embodiment, the docking end 120 is provided with a first connection portion 160, and the first connection portion 160 is used for being detachably connected with a second connection portion on the mold.
In the above implementation process, the first connection portion 160 is connected to the second connection portion in a matching manner, so that the abutting end 120 and the mold are kept relatively fixed, and the injection process can be stably performed.
Optionally, the matching structure of the first connection portion 160 and the second connection portion may be a threaded connection structure, a snap connection structure, or another detachable connection structure, which is not limited in this embodiment of the application.
In one possible embodiment, the first connection portion 160 is an external thread provided on the outer surface of the docking end 120, and the second connection portion is an internal thread provided on the mold.
In the implementation process, the detachable connection of the injector body 100 and the mold is realized by adopting threaded connection, the structure is simple, and the connection operation is convenient.
In one possible embodiment, the above resin continuous injection apparatus further includes a compressed air supply source for communicating with the feed channel 140.
In the implementation process, after the cleaning solution supply source cleans the feeding channel 140, the circulation cavity and the discharging channel 150, the cleaning solution supply source is closed, the compressed air supply source is opened, and compressed gas is introduced into the feeding channel 140, the circulation cavity and the discharging channel 150 to blow dry residual cleaning solution, so that the influence of the residual cleaning solution on the subsequent resin injection is avoided.
In a possible embodiment, the above resin continuous injection apparatus further comprises a waste liquid recovery container for communicating with the liquid discharge channel.
In above-mentioned implementation process, the resin and the washing liquid etc. that flow through the flowing back passageway can be collected to the waste liquid recovery container, and the recycle resin and washing liquid of being convenient for are favorable to resources are saved.
In a second aspect, the present application also provides a resin continuous injection method for performing injection using the resin continuous injection apparatus according to any one of the embodiments of the first aspect, the method including:
step 1: butting the butting end 120 with an injection port of a mold, and moving the control rod 200 to a first preset position;
step 2: starting the raw material supply source to inject resin into the feeding channel 140, so that the resin flows through the circulation cavity and is discharged from the discharge channel 150;
and step 3: after the resin flows stably, the control rod 200 is moved to a second predetermined position, so that the resin flows from the feeding channel 140 through the injection channel 130 and enters the mold;
and 4, step 4: after the mold is filled with resin, the control lever 200 is moved to a first predetermined position;
and 5: closing the raw material supply source, and starting the cleaning solution supply source to clean the feed channel 140, the flow structure and the discharge channel 150;
and (5) repeating the steps 2 to 5 to perform resin continuous injection.
Therefore, the method can realize the continuous injection of the resin, thereby improving the production efficiency of the composite material.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A resin continuous injection device, comprising:
the injection device comprises an injector body and a mold, wherein the injector body comprises a control end and a butt joint end which are opposite, the butt joint end is used for butt joint with the mold, and an injection channel, a feeding channel and a discharging channel are formed in the injector body; one port of the injection channel is formed in the end face of the butt joint end, and the other port of the injection channel is formed in the end face of the control end; one port of the feeding channel is communicated with the injection channel, and the other port of the feeding channel is used for being communicated with a raw material supply source and a cleaning solution supply source; one port of the discharge channel is communicated with the injection channel, and the other port of the discharge channel is arranged on the outer surface of the injector body;
a control rod slidably connected to the injection channel; the control rod is provided with a circulation structure, and the circulation structure can be matched with the inner wall of the injection channel to form a closed circulation cavity; when the control rod moves to a first preset position, the feeding channel and the discharging channel are communicated with the circulating cavity; when the control rod moves to a second preset position, the feeding channel is communicated with the injection channel, and the control rod blocks the discharge channel.
2. The apparatus of claim 1, wherein: the control rod comprises a circulation section, the circulation structure is an annular groove formed in the circulation section, protruding portions are formed at two ends of the annular groove respectively, and the outer diameter of each protruding portion is equal to the inner diameter of the injection channel.
3. The apparatus of claim 1, wherein: the control rod includes a flow section having a diameter equal to an inner diameter of the injection channel; the circulation structure is a circulation channel arranged on the circulation section, when the control rod moves to a first preset position, one port of the circulation channel is communicated with the feeding channel, and the other port of the circulation channel is communicated with the discharging channel.
4. The apparatus of claim 1, wherein: one end of the control rod, which is far away from the butt joint end, is provided with a limiting part, the radial size of the limiting part is larger than the inner diameter of the injection channel, and when the limiting part is abutted to the outer surface of the injector body, the control rod moves to a first preset position.
5. The apparatus of claim 1, wherein: the driving mechanism is connected to the control rod and used for controlling the control rod to switch between the first preset position and the second preset position.
6. The apparatus of any one of claims 1-5, wherein: the butt joint end is provided with a first connecting portion, and the first connecting portion is detachably connected with a second connecting portion on the mold.
7. The apparatus of claim 6, wherein: the first connecting portion are external threads arranged on the outer surface of the butt joint end, and the second connecting portion are internal threads arranged on the die.
8. The apparatus of any one of claims 1-5, wherein: also included is a compressed air supply for communicating with the feed channel.
9. The apparatus of any one of claims 1-5, wherein: still include the waste liquid recovery container, the waste liquid recovery container is used for with drainage channel intercommunication.
10. A resin continuous injection method characterized by using the resin continuous injection apparatus of any one of claims 1 to 9, the method comprising:
step 1: butting the butting end with an injection port of a mold, and moving the control rod to a first preset position;
and 2, step: starting the raw material supply source to inject resin into the feeding channel, so that the resin flows through the circulation cavity and is discharged from the discharge channel;
and step 3: after the resin flows stably, the control rod is moved to a second preset position, so that the resin flows through the injection channel from the feeding channel and enters the die;
and 4, step 4: after the resin is filled in the mold, moving the control rod to the first preset position;
and 5: closing the raw material supply source, and starting the cleaning liquid supply source to clean the feeding channel, the flow structure and the discharge channel;
and (5) repeating the steps 2 to 5 to perform resin continuous injection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201888.XA CN114523697A (en) | 2022-03-03 | 2022-03-03 | Resin continuous injection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201888.XA CN114523697A (en) | 2022-03-03 | 2022-03-03 | Resin continuous injection device and method |
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| CN114523697A true CN114523697A (en) | 2022-05-24 |
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| CN202210201888.XA Pending CN114523697A (en) | 2022-03-03 | 2022-03-03 | Resin continuous injection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302820A (en) * | 2022-07-19 | 2022-11-08 | 陈宗良 | Resin mixing device and method |
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| US20040161490A1 (en) * | 2003-02-13 | 2004-08-19 | Denis Babin | Valve gated injection molding system with independent flow control |
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| WO2020043982A1 (en) * | 2018-08-31 | 2020-03-05 | Safran | Resin injection modulator, resin injection circuit and associated methods |
| CN112318821A (en) * | 2020-08-07 | 2021-02-05 | 湖州吴兴旭诚塑料制品有限公司 | Nozzle mounting structure of injection molding machine |
| CN217414964U (en) * | 2022-03-03 | 2022-09-13 | 陈宗良 | Resin continuous injection device |
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| KR20120095180A (en) * | 2011-02-18 | 2012-08-28 | 지이엠(주) | A nozzle appratus with double valve pins for hot runner system of injection mould |
| CN104136188A (en) * | 2012-03-26 | 2014-11-05 | 东丽株式会社 | Gate valve and method of manufacturing gate valve |
| US20160339617A1 (en) * | 2015-05-22 | 2016-11-24 | Nissei Plastic Industrial Co., Ltd. | Method for manufacturing cup-shaped container |
| WO2020043982A1 (en) * | 2018-08-31 | 2020-03-05 | Safran | Resin injection modulator, resin injection circuit and associated methods |
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| CN217414964U (en) * | 2022-03-03 | 2022-09-13 | 陈宗良 | Resin continuous injection device |
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| CN115302820A (en) * | 2022-07-19 | 2022-11-08 | 陈宗良 | Resin mixing device and method |
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