CN109849282B - Double-layer shunting injection mold - Google Patents
Double-layer shunting injection mold Download PDFInfo
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- CN109849282B CN109849282B CN201910214652.8A CN201910214652A CN109849282B CN 109849282 B CN109849282 B CN 109849282B CN 201910214652 A CN201910214652 A CN 201910214652A CN 109849282 B CN109849282 B CN 109849282B
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Abstract
本发明公开一种双层分流注塑模具，其包括前模，后模，引流圈，气塞以及依次扣合的第一分流器、第二分流器和安装架；所述第一分流器扣合于所述后模上；所述第一分流器和所述第二分流器上均设置有引流管，所述引流管穿过所述后模；所述引流圈依次穿过所述安装架和所述第二分流器，并置于所述第一分流器内，所述引流圈分别与所述第一分流器和所述第二分流器连通；所述气塞依次贯穿所述安装架和所述第二分流器，并延伸至所述第一分流器内；所述气塞可沿贯穿方向滑动，以将所述引流圈与所述第一分流器或所述第二分流器隔离，按照时序移动所述气塞，实现所述第一分流器和所述第二分流器双层分流，先后完成胶壳和骨位的注塑，注塑过程无需开模。
The invention discloses a double-layer shunt injection mold, which comprises a front mold, a rear mold, a drainage ring, a gas plug, and a first shunt, a second shunt and a mounting bracket that are buckled in sequence; the first shunt is buckled on the back mold; the first shunt and the second shunt are both provided with a drainage pipe, and the drainage pipe passes through the rear mold; the drainage ring passes through the mounting frame and the The second flow divider is placed in the first flow divider, and the drainage ring is communicated with the first flow divider and the second flow divider respectively; the second flow divider and extends into the first flow divider; the gas plug can slide along the through direction to isolate the drainage ring from the first flow divider or the second flow divider, The air plug is moved according to the time sequence to realize the double-layer shunting of the first shunt and the second shunt, and the injection molding of the plastic shell and the bone position is completed successively, and the injection molding process does not need to open the mold.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a double-layer shunting injection mold.
Background
The television rubber shell is injection-molded by using an injection mold, and as shown in fig. 1, the bone position 200 needs to be injection-molded on the television rubber shell 100, the injection mold in the prior art only has a single splitter plate hot runner system, and after the injection mold finishes injection molding on the rubber shell 100, the bone position 200 needs to be injection-molded on the rubber shell 100 after demolding; two injection moldings resulted in: the inlet speeds of the discharge ports are different, and flow marks are generated; the effect pigment is reversed by using the spraying-free material for injection molding, so that the light reflection is unbalanced; two sets of front mold hot runner systems are needed, the mold opening cost is high, and the efficiency is low.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention aims to solve the technical problem that the double-layer shunting injection mold aims to realize injection molding of an injection molding part and a bone position only through one-time mold closing by double-layer shunting injection.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a double-layer shunting injection mold comprises a front mold, a rear mold buckled on the front mold, a drainage ring, an air plug, a first shunt, a second shunt and a mounting frame, wherein the first shunt, the second shunt and the mounting frame are sequentially buckled; the first current divider is buckled on the rear mould; drainage tubes are arranged on the first flow divider and the second flow divider, and penetrate through the rear die; the drainage ring sequentially penetrates through the mounting frame and the second shunt and is arranged in the first shunt, and the drainage ring is respectively communicated with the first shunt and the second shunt; the air plug sequentially penetrates through the mounting frame and the second shunt and extends into the first shunt; the air plug can slide along the penetrating direction to isolate the drainage ring from the first shunt or the second shunt.
The double-layer flow dividing injection mold comprises a first flow divider, a second flow divider and a third flow divider, wherein the first flow divider comprises a first flow dividing plate and a first flow channel; the first flow channel is arranged on the surface, away from the rear die, of the first flow dividing plate; the draft tube passes through the first flow distribution plate and is communicated with the first flow channel.
The double-layer flow dividing injection mold is characterized in that a drainage ring installation position is arranged on the first flow dividing plate and connected with the first flow channel.
The double-layer flow dividing injection mold comprises a first flow divider, a second flow divider and a first flow passage, wherein the first flow divider comprises a first flow dividing plate and a first flow passage; the second flow channel is arranged on the surface, deviating from the rear mold, of the second splitter plate; the drainage tube penetrates through the second flow dividing plate and is communicated with the second flow channel.
The double-layer flow dividing injection mold is characterized in that a first discharge port and a second discharge port are arranged on the flow guiding ring, the first discharge port is communicated with the first flow divider, and the second discharge port is communicated with the second flow divider.
The double-layer flow dividing injection mold further comprises an air cylinder, and the air cylinder sequentially penetrates through the mounting frame and the second flow divider and extends into the first flow divider; a first drainage port, a second drainage port, a third drainage port and a fourth drainage port are formed in the cylinder, the first drainage port is communicated with the first discharge hole, and the second drainage port is communicated with the first shunt; the third drainage port is communicated with the second discharge port, and the fourth drainage port is communicated with the second flow divider; the air plug is positioned in the air cylinder and can slide along the air cylinder to shield the first drainage port or the third drainage port.
The double-layer shunting injection mold is characterized in that the air plug comprises a connecting piece, and a first blocking piece, a second blocking piece and a guide blocking piece which are sequentially arranged at intervals; one end of the connecting piece is connected with the guide blocking piece, and the other end of the connecting piece penetrates through the second blocking piece and is connected with the first blocking piece.
The double-layer split-flow injection mold is characterized in that a sealing ring is arranged in the cylinder, and the first blocking piece and the second blocking piece are both positioned on one side, facing the rear mold, of the sealing ring; the guide blocking piece is positioned on one side, away from the rear die, of the sealing ring; the connecting piece penetrates through the sealing ring and can slide in the sealing ring.
The double-layer shunting injection mold further comprises a driving device, and the driving device is connected with the air cylinder and used for driving the air plug to slide in the air cylinder.
The double-layer flow dividing injection mold is characterized in that a first air vent and a second air vent are sequentially arranged in the arrangement direction of the first separation blades and the second separation blades on the cylinder, the guide separation blades are located between the first air vent and the second air vent, a first air vent corresponding to the first air vent and a second air vent corresponding to the second air vent are arranged on the mounting frame, the driving device comprises a blowing machine, and the first air vent and the second air vent are both used for installing the blowing machine.
Has the advantages that: according to the invention, the air plug is moved according to a time sequence, so that double-layer shunting of the first shunt and the second shunt is realized, injection molding of the rubber shell and the bone position is successively completed, mold opening is not needed in the injection molding process, the process and the cost are saved, the efficiency is improved, a spraying-free injection molding material can be used, the pigment in the spraying-free material is prevented from being reversed, and thus the phenomenon of uneven reflection of the rubber shell formed by injection molding of the spraying-free material is avoided.
Drawings
FIG. 1 is a schematic structural view of a rubber shell according to the present invention;
FIG. 2 is a reference diagram of the dual-layer split injection mold in the use state when the first splitter injects the injection molding material into the product cavity;
FIG. 3 is a reference diagram of the dual-layer split injection mold in the use state when the second splitter injects the injection molding material into the bone cavity;
FIG. 4 is an exploded view of the dual layer split injection mold of the present invention;
FIG. 5 is a first view of the first shunt of the present invention;
FIG. 6 is a second view of the first shunt of the present invention;
FIG. 7 is a schematic structural diagram of a second shunt according to the present invention;
FIG. 8 is a schematic view of the construction of the drainage ring of the present invention;
FIG. 9 is a schematic view of the construction of the cylinder in the present invention;
FIG. 10 is a schematic view of the construction of the air lock in the present invention;
FIG. 11 is a perspective view of the mount of the present invention;
FIG. 12 is a cross-sectional view of the mount of the present invention;
FIG. 13 is a schematic view of the plug of the present invention;
FIG. 14 is a schematic view of the assembly of the draft tube with the first flow distribution plate of the present invention;
fig. 15 is a schematic view of the structure of the cover plate according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1-15. The invention provides a double-layer shunting injection mold, which is explained by taking injection molding of a rubber shell 100 with a bone position 200 (shown in figure 1) as an example, and comprises a front mold 1 and a rear mold 2 buckled on the front mold 1 as shown in figures 2, 3 and 4, wherein the front mold 1 and the rear mold 2 are buckled to form a product cavity and a bone position cavity; the double-layer flow dividing injection mold further comprises a flow guiding ring 5, an air plug 6, a first flow divider 3, a second flow divider 4 and a mounting frame 7 which are sequentially buckled; the first shunt 3 is buckled on the rear mould 2; the mounting rack 7 is used for mounting and fixing the drainage ring 5 and the air plug 6. The first flow divider 3 is used for guiding injection molding materials to a product cavity and performing injection molding to form a rubber shell 100; the second shunt 4 is used for guiding the injection molding material to the bone position cavity, so that the bone position 200 is formed on the rubber shell 100 by injection molding at a corresponding position.
One end of the drainage ring 5 sequentially penetrates through the mounting frame 7 and the second flow divider 4 and is arranged in the first flow divider 3; the drainage ring 5 is respectively communicated with the second flow divider 4 and the first flow divider 3 so as to drain the flow to the second flow divider 4 and the first flow divider 3; a drainage tube 10 is arranged on each of the first flow divider 3 and the second flow divider 4, and the drainage tube 10 passes through the rear die; after the injection molding material enters the first shunt 3 or the second shunt 4 through the drainage ring 5, the injection molding material in the first shunt 3 can pass through the rear mold 2 through a drainage tube connected with the drainage ring and enter a product cavity; the injection molding material in the second shunt 4 can pass through the rear mold 2 through a drainage tube connected with the second shunt and enter a bone position cavity. The air plug 6 penetrates through the mounting frame 7 and the second shunt 4 in sequence and extends into the first shunt 3; as shown in fig. 8, a first discharge hole 51 and a second discharge hole 52 corresponding to the first flow divider 3 and the second flow divider 4, respectively, are disposed on the flow guiding ring 5; when the injection molding material injected from the drainage ring 5 flows into the first discharge hole 51, the injection molding material sequentially flows into the corresponding position of the product cavity through the first discharge hole 51 and the first flow divider 3, and a rubber shell 100 is formed by injection molding; when the injection molding material injected from the drainage ring 5 flows into the second discharge hole 52, the injection molding material sequentially flows into the corresponding position of the bone position cavity through the second discharge hole 52 and the second flow divider 4, and the bone position 200 is formed by injection molding.
The air plug 6 is configured to reciprocate between the first flow divider 3 and the mounting bracket 7 to isolate the flow guiding ring 5 from the first flow divider 3 or the second flow divider 4, that is, when the air plug 6 moves, only the flow path between the flow guiding ring 5 and the first flow divider 3 or the flow path between the flow guiding ring 5 and the second flow divider 4 can be isolated. When the air plug 6 is used for isolating the drainage ring 5 from the second flow divider 4, as shown in fig. 2, the drainage ring 5 and the first flow divider 3 are in a communicated state, an injection molding material is injected into the drainage ring 5, and the injection molding material is drained to a product cavity by the first flow divider 3 for injection molding, so that a rubber casing 100 is formed; after the injection molding of the rubber casing 100 is completed, the rubber casing is cooled and maintained for a preset time (for example, 20min), the air plug is moved, as shown in fig. 3, the air plug 6 isolates the drainage ring 5 from the first shunt 3, the drainage ring 5 is communicated with the second shunt 4, the injection molding material enters a bone position cavity through the drainage of the second shunt 4, and the bone position 200 is injection molded on the rubber casing.
According to the invention, the air plug 6 is moved according to a time sequence, so that a passage between the drainage ring 5 and the first shunt 3 is isolated, or a passage between the drainage ring 5 and the second shunt 4 is isolated, double-layer shunting of the first shunt 3 and the second shunt 4 is realized, injection molding of the rubber shell 100 and the bone position 200 is successively completed, mold opening is not needed in the injection molding process, the process and the cost are saved, the efficiency is improved, a spraying-free injection molding material can be used, pigment in the spraying-free material is prevented from being reversed, and thus the phenomenon of uneven reflection of the rubber shell 100 formed by injection molding of the spraying-free material is avoided.
As shown in fig. 5 and 6, the first flow divider 3 includes a first flow dividing plate 31 and a first flow channel 32; the first flow channel 32 is arranged on the surface of the first flow dividing plate 31, which faces away from the rear die 2; one end of the draft tube 10 passes through the rear mold, and the other end passes through the first flow dividing plate 31 and communicates with the first flow channel 32. A drainage ring mounting position 311 is arranged on the first splitter plate 31, and the drainage ring mounting position 311 is used for limiting the drainage ring 5 to ensure that the drainage ring 5 cannot be separated from the first splitter plate 31; further, the drainage ring mounting position 311 is connected to the first flow channel 32, and the injection molding material enters the drainage ring mounting position 311 through the first discharge port 51, and then flows into the first flow channel 32 from the drainage ring mounting position 311. The rear die 2 is provided with a first through hole for the drainage tube 10 to pass through, the drainage tube 10 passes through the first through hole, is inserted between the rear die 2 and the front die 1 and corresponds to a product cavity, and therefore the injection molding material is guided to the product cavity.
Since a certain pressure is generated when the injection molding material is injected into the product cavity from the drainage ring 5, in order to prevent the drainage tube 10 from separating from the first flow dividing plate 31 under the action of the pressure, in the invention, one end of the drainage tube 10 connected with the first flow channel 32 exceeds the first flow dividing plate 31, as shown in fig. 14, a plurality of first feed ports 331 are arranged on the drainage tube 10, and the first feed ports 331 connect the drainage tube 10 with the first flow channel 32.
As shown in fig. 7, the second flow splitter 4 includes a second flow dividing plate 41 and a second flow channel 42; the second flow channel 42 is disposed on a surface of the second flow dividing plate 41 facing away from the rear mold 2, and one end of the draft tube 10 passes through the rear mold 2, and the other end passes through the second flow dividing plate 41 and is communicated with the second flow channel 42. The second flow dividing plate 41 separates the first flow passage 32 from the second flow passage 42. As shown in fig. 6, a drainage tube mounting hole 312 is formed on the first flow dividing plate 31, and the drainage tube mounting hole 312 is used for a drainage tube connected to the second flow divider 41 to pass through. In the invention, the space formed after the front mold 1 and the rear mold 2 are buckled is communicated with the second flow channel 42 through the drainage tube 10, so that the injection molding material is drained to a bone position cavity, the firm connection force of the first flow dividing plate 31 and the second flow dividing plate 41 is improved, the separation of the first flow dividing plate and the second flow dividing plate 41 caused by pressure impact is avoided, and the first flow channel 32 and the second flow channel 42 are ensured not to influence each other when the injection molding material is injected into the space formed after the front mold 1 and the rear mold 2 are buckled.
As shown in fig. 7, a rim 411 is disposed on a surface of the second flow splitter plate 41 facing the first flow splitter plate 31, the rim 411 is disposed along a circumferential direction of the second flow splitter plate 41, and when the draft tube 10 sequentially passes through the draft tube mounting hole 312 and the rear mold 2, the rim 411 may surround the first flow channel 32, so that the first flow splitter plate 31 and the second flow splitter plate 41 are connected by a covering manner, the connection firmness between the first flow splitter plate 31 and the second flow splitter plate 41 is enhanced, and the first flow channel 32 is prevented from extruding glue due to pressure during injection of the injection molding material. Further, as shown in fig. 4, a cover plate 8 is disposed between the second flow channel 42 and the mounting frame 7, and the cover plate 8 is used for shielding the second flow channel 42, so as to prevent the second flow channel 42 from being extruded outwards due to the existence of pressure during the injection molding material process; as shown in fig. 15, the cover plate 8 is provided with an air plug assembling hole 81 and a drainage ring assembling hole 82, the air plug assembling hole 81 is used for the air plug 6 to pass through, and the drainage ring assembling hole 82 is used for the drainage ring 5 to pass through; the air plug assembling hole 81 and the drainage ring assembling hole 82 are respectively used for positioning the air plug 6 and the drainage ring 5, so that the cover plate 8 and the second flow channel 42 correspond to each other in accuracy, the cover plate 8 can completely shield the second flow channel 42, and the second flow channel 42 is prevented from being extruded outwards.
As shown in fig. 4, the double-layer flow-splitting injection mold further comprises a cylinder 61, as shown in fig. 9, the cylinder 61 sequentially penetrates through the mounting frame 7 and the second flow splitter 4, and extends into the first flow splitter 3; the end of the cylinder 61 facing the rear mould 5 and the end facing away from the rear mould 5 are both closed; as shown in fig. 5 and 6, the first diversion plate 31 is further provided with a cylinder mounting location 313, the cylinder mounting location 313 is used for mounting the cylinder 61, the cylinder mounting location 313 is communicated with the first flow passage 32, and the diversion ring mounting location 311 is communicated with the cylinder mounting location 313. A first drainage port 601, a second drainage port 602, a third drainage port 603 and a fourth drainage port 604 are arranged on the cylinder 61, the first drainage port 601 is communicated with the first discharge hole 51, and the second drainage port 602 is communicated with the first flow divider 3; the third drainage port 603 is communicated with the second discharge port 52, and the fourth drainage port 604 is communicated with the second flow divider 4; the air plug 6 is located in the air cylinder 61 and can slide along the air cylinder 61 to shield the first drainage port 601 or the third drainage port 603.
As shown in fig. 2 and 3, the first drainage port 601 is opposite to and communicated with the first discharge port 51, so that the injection molding material can only enter the first drainage port 601 after flowing out from the first discharge port 51, and then enter the cylinder 61, and then enter the drainage tube 10 from the second drainage port 602 through the first flow passage 32. The third drainage port 603 is communicated with the second discharge port 52, and the fourth drainage port 604 is communicated with the second flow passage 42; when the air plug 6 blocks the first drainage port 601, even if the injection molding material is injected into the drainage ring 5, the injection molding material cannot enter the cylinder 61 from the first discharge port 51 when flowing to the first discharge port 51, and the injection molding material can only enter the cylinder 61 from the second discharge port 52 through the third drainage port 603 and then enter the second flow passage 42 through the fourth drainage port 604, thereby completing the injection of the injection molding material into the drainage tube 10.
As shown in fig. 10, the air lock 6 includes a connecting member 64, and a first blocking piece 621, a second blocking piece 622 and a guiding blocking piece 623 which are arranged at intervals in sequence; one end of the connecting element 624 is connected to the guiding stop 623, and the other end passes through the second stop 622 and is connected to the first stop 621; the connecting element 624 connects the first blocking piece 621, the second blocking piece 622 and the guiding blocking piece 623, the diameter of the connecting element 624 is smaller than that of the first blocking piece 621, so that after the air plug 6 is inserted into the cylinder 61, the space between the first blocking piece 621 and the second blocking piece 622 except the connecting element 624 can be used for flowing injection molding material, and after the injection molding material enters the cylinder 61, the injection molding material can enter the first flow passage 32 from the second flow guide port 602 and enter the second flow passage 42 from the fourth flow guide port 604.
The guide blocking piece 623, the first blocking piece 621 and the second blocking piece 622 are in interference fit with the cylinder 61, so that the peripheries of the guide blocking piece 623, the first blocking piece 621 and the second blocking piece 622 can be in contact with the cylinder 61, and the air plug 6 can synchronously block the first drainage port 601 and the second drainage port 602 or synchronously block the third drainage port 603 and the fourth drainage port 604.
As shown in fig. 9, a seal ring 613 is provided in the cylinder 61, and divides the space in the cylinder 61 into two spaces; the first blocking piece 621 and the second blocking piece 622 are both located on the side of the sealing ring 613 facing the rear mold 2, and the guide blocking piece 623 is located on the side of the sealing ring 613 facing away from the rear mold 2; the connecting member 624 passes through the sealing ring 613 and is slidable within the sealing ring 613. Because the injection molding material enters the cylinder 61 during injection molding, and the injection molding material is guided to the position of the guide gasket 623 along with the movement of the air plug 6, so that the movement of the guide gasket 623 is blocked, and the movement of the whole air plug 6 is affected, the seal ring 613 can isolate the space between the guide baffle 623 and the second baffle 622, and the injection molding material cannot enter the space on the side of the seal ring 613 away from the rear film 2.
The connector 624 is located within the seal ring 613; the distance between the first blocking piece 621 and the second blocking piece 622 is greater than the distance between the first conduction port 601 and the third conduction port 603, and the thickness of the first blocking piece 621 is matched with the width of the first conduction port 601 to completely block the first conduction port 601; the thickness of the second baffle 622 is matched with the width of the third conduction opening 603, which is enough to completely shield the third conduction opening 603; when the guide blocking piece 623 moves in the cylinder 61, the connecting piece 624 plays a role in transmission, and the first blocking piece 621 and the second blocking piece 622 are both driven to move by the connecting piece 624.
When the second blocking piece 622 blocks the third drainage port 603, the first blocking piece 621 is located on the side of the first drainage port 601, which faces away from the third drainage port 603, the first drainage port 601 is located between the first blocking piece 621 and the second blocking piece 622, and the first drainage port 601 is in a release state; when the first blocking piece 621 blocks the first drainage opening 601, the second blocking piece 622 is located on the side where the third drainage opening 603 deviates from the first drainage opening 601, the third drainage opening 603 is located between the second blocking piece 622 and the first blocking piece 621, and the third drainage opening 603 is in a release state, so that the guide blocking piece 623 drives the first blocking piece 621 and the second blocking piece 622 to move through timing sequence, and the realization is realized: when the first blocking piece 621 blocks the first drainage port 601, the third drainage port 603 is in a release state; when the second blocking piece 622 blocks the third drainage port 603, the first drainage port 601 is in a release state, so that the first flow divider 3 and the second flow divider 4 can control the drainage sequence of the injection molding material.
The double-layer flow splitting injection mold further comprises a driving device, wherein the driving device is connected with the cylinder 61 and used for driving the air plug 6 to move in the cylinder 61, so that the first drainage port 601 and the third drainage port 603 are sequentially shielded. The cylinder 61 is provided with a first vent hole 614 and a second vent hole 615, and the first drainage port 601, the third drainage port 603, the sealing ring 613, the first vent hole 614 and the second vent hole 615 are sequentially arranged; when the guide blocking piece 623 is located between the first vent hole 614 and the second vent hole 615, and the state where the third vent hole 603 is blocked by the second blocking piece 622 is changed to the state where the first blocking piece 621 blocks the first vent hole 601, the moving distance of the guide blocking piece 623 is smaller than the distance between the first vent hole 614 and the second vent hole 615, so that the guide blocking piece 623 cannot block the first vent hole 614 and the second vent hole 615, and when the cylinder 61 is ventilated, gas can always flow in a space on one side of the sealing ring 613 departing from the third vent hole 603, thereby ensuring the stability of the movement of the guide blocking piece 623 in the cylinder 61 in the ventilating state.
Further, as shown in fig. 11 and 12, the mounting bracket 7 is provided with a first air flow hole 71 corresponding to the first vent hole 614 and a second air flow hole 72 corresponding to the second vent hole 615, the driving device includes a blower, and both the first air flow hole 71 and the second air flow hole 72 are used for mounting the blower. When a product needs to be injection molded, the blowing machine is connected with the second air flow through hole 72, the blowing machine blows air to the second air flow through hole 72, the air flow enters the cylinder 61 through the second air flow through hole 615, air between the guide gasket 623 and the sealing ring 613 is discharged from the first air hole 614, so that the guide baffle 623 is pressed towards the direction of the third drainage port 603, the first baffle 621 moves to the side, away from the third drainage port 603, of the first drainage port 601, the second baffle 622 shields the third drainage port 603, the blowing machine is closed, and injection molding materials flow into the space between the first baffle 621 and the second baffle 622 through the first drainage port 601, and then enter a product cavity through the first flow divider 3. After the injection molding of the product cavity is completed, the cooling and pressure maintaining are carried out for 20min, the air blower is connected with the first air circulation hole 71, the air blower blows air to the first air circulation hole 71, the air flow enters the cylinder 61 through the first air vent 614, the air in the cylinder 61, which is positioned on one side of the guide gasket 623 departing from the sealing ring 613, is discharged from the second air vent 615, so that the guide retaining sheet 623 is pulled to one side far away from the third drainage port 603, the second retaining sheet 622 moves to one side of the third drainage port 603 departing from the first drainage port 601, the first retaining sheet 621 shields the first drainage port 601, and the injection molding material enters between the first retaining sheet 621 and the second retaining sheet 622 through the third drainage port 603 and then enters the bone position cavity through the second flow divider 4, so that the injection molding of the bone position on the product is completed.
As shown in fig. 4 and 13, the double-layer shunt injection mold further includes a plug 9, a drainage ring mounting hole 73 and a cylinder mounting hole 74 are provided on the mounting frame 7, the plug 9 is located on one side of the second shunt 4 deviated from the mounting frame 7, and the cylinder mounting hole 74 is connected with the drainage ring 5 and the cylinder 61 through screws respectively, so that the drainage ring 5 and the cylinder 61 are connected with the mounting frame 7, and the displacement of the drainage ring 5 and the cylinder 61 caused by the pressure generated in the injection molding process is avoided. The plug 9 comprises a baffle 91 and a positioning ring 92, the baffle 91 is positioned on the side, away from the second flow divider 4, of the mounting frame 7, and shields the flow guide ring mounting hole 73 and the cylinder mounting hole 74; the baffle plate 91 is connected with the drainage ring 5 and the cylinder 61 through screws; the positioning ring 92 is arranged on one side of the baffle plate 91 facing the mounting frame 7 and is inserted into the drainage ring 5 through the drainage ring mounting hole 73; be provided with injection molding material via hole 93 on baffle 91, injection molding material via hole with the position circle 92 is corresponding, in order to pass through injection molding material via hole 93 the position circle 92 to inject injection molding material into in the drainage circle 5.
Mounting bracket 7 orientation second shunt one side is provided with and holds chamber 75, the apron 8 second shunt 4 with first shunt 3 all is located hold the chamber 75 in, mounting bracket 7 with back mould 2 contacts, makes first shunt 3 with second shunt 4 all can be compressed tightly, avoid to first shunt 3 or when injecting the material of moulding plastics in the second shunt 4, the material of moulding plastics is extruded.
In summary, the present invention provides a dual-layer split-flow injection mold, which comprises a front mold, a rear mold, a flow guiding ring, an air plug, and a first splitter, a second splitter and a mounting frame, which are sequentially fastened together; the first current divider is buckled on the rear mould; drainage tubes are arranged on the first flow divider and the second flow divider, and penetrate through the rear die; the drainage ring sequentially penetrates through the mounting frame and the second shunt and is arranged in the first shunt, and the drainage ring is respectively communicated with the first shunt and the second shunt; the air plug sequentially penetrates through the mounting frame and the second shunt and extends into the first shunt; the air plug can slide along the penetrating direction to isolate the drainage ring from the first shunt or the second shunt. According to the invention, the air plug is moved according to a time sequence, so that double-layer shunting of the first shunt and the second shunt is realized, injection molding of the rubber shell and the bone position is successively completed, mold opening is not needed in the injection molding process, the process and the cost are saved, the efficiency is improved, a spraying-free injection molding material can be used, the pigment in the spraying-free material is prevented from being reversed, and thus the phenomenon of uneven reflection of the rubber shell formed by injection molding of the spraying-free material is avoided.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
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| CN201910214652.8A CN109849282B (en) | 2019-03-20 | 2019-03-20 | Double-layer shunting injection mold |
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| CN201910214652.8A CN109849282B (en) | 2019-03-20 | 2019-03-20 | Double-layer shunting injection mold |
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| CN109849282A CN109849282A (en) | 2019-06-07 |
| CN109849282B true CN109849282B (en) | 2021-05-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6589039B1 (en) * | 1998-04-21 | 2003-07-08 | Synventive Molding Solutions, Inc. | Controlled injection using manifold having multiple feed channels |
| US20090081324A1 (en) * | 2007-09-20 | 2009-03-26 | Kuo Fei-Pin | Tri-plate injection die with changeable male and female die cores |
| CN101708649A (en) * | 2009-08-13 | 2010-05-19 | 深圳市安高模具有限公司 | Layered hot runner mold |
| CN102107497A (en) * | 2009-12-28 | 2011-06-29 | 海尔集团公司 | Double-layer splitter plate hot runner |
| CN106393592A (en) * | 2016-08-20 | 2017-02-15 | 宁波学大机械设备有限公司 | Injection mold with adjustable runner |
| CN108000811A (en) * | 2017-12-30 | 2018-05-08 | 浙江圣利机械设备有限公司 | A kind of hot runner mould with double-layer channel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003053801A (en) * | 2001-08-09 | 2003-02-26 | Sony Corp | Mold for injection molding, method for manufacturing optical recording medium, and optical recording medium |
-
2019
- 2019-03-20 CN CN201910214652.8A patent/CN109849282B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6589039B1 (en) * | 1998-04-21 | 2003-07-08 | Synventive Molding Solutions, Inc. | Controlled injection using manifold having multiple feed channels |
| US20090081324A1 (en) * | 2007-09-20 | 2009-03-26 | Kuo Fei-Pin | Tri-plate injection die with changeable male and female die cores |
| CN101708649A (en) * | 2009-08-13 | 2010-05-19 | 深圳市安高模具有限公司 | Layered hot runner mold |
| CN102107497A (en) * | 2009-12-28 | 2011-06-29 | 海尔集团公司 | Double-layer splitter plate hot runner |
| CN106393592A (en) * | 2016-08-20 | 2017-02-15 | 宁波学大机械设备有限公司 | Injection mold with adjustable runner |
| CN108000811A (en) * | 2017-12-30 | 2018-05-08 | 浙江圣利机械设备有限公司 | A kind of hot runner mould with double-layer channel |
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| CN109849282A (en) | 2019-06-07 |
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