CN120716111A - A hot runner mold - Google Patents
A hot runner moldInfo
- Publication number
- CN120716111A CN120716111A CN202511189721.6A CN202511189721A CN120716111A CN 120716111 A CN120716111 A CN 120716111A CN 202511189721 A CN202511189721 A CN 202511189721A CN 120716111 A CN120716111 A CN 120716111A
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- plate
- fixed
- hot runner
- center
- mold frame
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Abstract
本发明公开了一种热流道模具，涉及塑料成型模具技术领域，解决传统热流道模具模仁多通过螺栓与模架刚性连接不易更换，热流道内壁易残留母液，更换材料或颜色时需大量洗机料冲刷，脱模精度低易损伤工件的技术问题，包括定模总成，所述定模总成的右侧设置有动模总成，所述定模总成和动模总成的内侧设置有模仁固定机构。通过上述机构的协同工作，优化了模仁固定结构、热流道清洁机制和脱模联动，模具拆装便捷，可快速更换模仁适配多规格生产；热流道系统加热均匀、清洁高效，能快速切换材料或颜色；脱模自动化且精准，提升效率；线束管理规范，运行稳定；结构稳固，保障成型质量，整体降低成本，实现了高效的注塑成型与脱模循环，提高生产效率。
The present invention discloses a hot runner mold, which relates to the technical field of plastic molding molds. It solves the technical problems of traditional hot runner molds, such as the mold core is rigidly connected to the mold frame by bolts and is difficult to replace, the mother liquid is easily left on the inner wall of the hot runner, a large amount of washing material is required to flush when changing materials or colors, and the demoulding accuracy is low and the workpiece is easily damaged. The mold comprises a fixed mold assembly, a movable mold assembly is provided on the right side of the fixed mold assembly, and a mold core fixing mechanism is provided on the inner side of the fixed mold assembly and the movable mold assembly. Through the coordinated work of the above mechanisms, the mold core fixing structure, the hot runner cleaning mechanism and the demoulding linkage are optimized, the mold is easy to disassemble and assemble, and the mold core can be quickly replaced to adapt to the production of multiple specifications; the hot runner system heats evenly, cleans efficiently, and can quickly switch materials or colors; the demoulding is automated and accurate, which improves efficiency; the wiring harness management is standardized and the operation is stable; the structure is stable, the molding quality is guaranteed, the overall cost is reduced, and an efficient injection molding and demoulding cycle is achieved, thereby improving production efficiency.
Description
Technical Field
The invention relates to the technical field of plastic forming dies, in particular to a hot runner die.
Background
The hot runner mold is a mold which uses a heating device to ensure that melt in the runner is not solidified all the time. Because it has shorter forming period than the traditional mould, and saves more raw materials, it is widely used.
In current plastics processing field of moulding plastics, there are a great deal of restriction production efficiency and the problem of application flexibility in traditional hot runner mould, mould benevolence is many through bolt and die carrier rigid connection, change loaded down with trivial details and easily influence the shaping because of positioning accuracy is not enough, the suitability is poor, the thick liquid is easily remained to parts inner wall such as the flow distribution plate of hot runner system, hot purt is chewed, need a large amount of machine material washs when changing material or colour, the multiple cylinder of relying on or pneumatic cylinder drive during the drawing of patterns, ejecting precision is low, easily damage the work piece, the pencil of hot runner lacks special arrangement structure, easily appear knot, wearing and tearing or come off, influence the holistic reliability of equipment.
In view of these problems, the present invention proposes a hot runner mold.
Disclosure of Invention
The hot runner mold comprises a fixed mold assembly, wherein a movable mold assembly is arranged on the right side of the fixed mold assembly, and mold core fixing mechanisms are arranged on the inner sides of the fixed mold assembly and the movable mold assembly;
The movable mould assembly comprises a sliding seat plate, a fixing member is arranged on the left side of the sliding seat plate, a hot runner assembly is arranged in the fixing member, a junction box is connected to the front end and the rear end of the center of the left side of the sliding seat plate through bolt threads, a main runner is arranged on the center of the right side of the sliding seat plate, a movable mould frame is arranged on the left side of the fixing member, a plurality of connecting pieces are arranged on the right side of the top and the bottom of the movable mould frame at equal intervals, the left side of each connecting piece is connected with the right side threads of the top and the bottom of the movable mould frame through bolts, an inserting block is inserted into the right side of the center of the front surface of the movable mould frame and the right side of the center of the back, a cover piece is arranged on the front surface of the inserting block and the back of the inserting block in a fitting mode, and the cover piece is connected to the right side of the center of the front surface of the movable mould frame through bolt threads, and a plurality of inserting rods are fixedly connected to the left side of the movable mould frame at equal intervals.
As a further scheme of the invention, a rice-shaped groove is formed in the center of the right side of the movable die frame, slots are respectively formed in the front end and the rear end of the center of the right side of the movable die frame, and the outer sides of the two slots are communicated with the right side of the center of the front surface of the movable die frame and the right side of the center of the back.
As a further scheme of the invention, the fixing member comprises a mounting groove plate, the front end and the rear end of the left center of the mounting groove plate are fixedly connected with lugs, the right side of the mounting groove plate is provided with jogging grooves, a plurality of shafts are fixedly connected with the front end and the rear end of the top center of the right side of the mounting groove plate at equal intervals, a plurality of clamping rods are fixedly connected with the front end and the rear end of the bottom center of the right side of the mounting groove plate at equal intervals, the clamping rods and the shafts are mutually parallel, the outer wall of each shaft is rotationally connected with a stay, the bottom of each stay is fixedly connected with a spanner block, the left bottom of each stay is fixedly connected with a buckle, the left side of each stay is symmetrically fixedly connected with two spring telescopic rods, the left side of each group of spring telescopic rods is fixedly connected with a pressing buckle, the mounting groove plate can be connected with the left side of a sliding seat plate through bolts at equal intervals, the left side of the top of the mounting groove plate and the left side of the bottom of the mounting groove plate are connected with the right side of a connecting piece through bolts at equal intervals, the lugs can be connected with the inner sides of the lugs and the inner sides of the two inner sides of the movable blocks can be connected with the two inner side jogging grooves.
As a further scheme of the invention, a plurality of wire arranging grooves are symmetrically formed in the front end and the rear end of the right side of the mounting groove plate, a plurality of pressing buckles are arranged on the right side of the wire arranging grooves, the left sides of the pressing buckles are parallel to the right sides of the wire arranging grooves, the wire harness of the hot runner assembly is clamped in the wire arranging grooves, the end of the wire harness of the hot runner assembly is communicated with the junction box, and the left sides of the pressing buckles are buckled on the right side of the outer wall of the wire harness of the hot runner assembly.
According to a further scheme, the hot runner assembly comprises a heat insulation plate, the right side of the heat insulation plate is connected with a fixed pressing plate through bolt threads, a first-stage hot sprue is arranged at the center of the right side of the fixed pressing plate, a flow distribution plate is fixedly connected to the left side of the heat insulation plate, a plurality of second-stage hot sprue are fixedly connected to the left side of the flow distribution plate in a rectangular array mode, a nozzle is fixedly connected to the left side of the second-stage hot sprue through flange threads, an inner expansion sleeve is fixedly connected to the inner center of the nozzle, a thimble is fixedly connected to the inner portion of the inner expansion sleeve in a sliding mode, a sliding tube is fixedly connected to the right side of the inner side of the thimble, a push rod is fixedly connected to the right side of the outer wall of the thimble, a limit sleeve is fixedly connected to the left side of the inner side of the sleeve, a special-shaped guide sleeve is fixedly connected to the top end of the inner side of the sleeve, a special-shaped slider is fixedly connected to the top end of the inner side of the sleeve, and the top end of the inner side of the special-shaped slider is fixedly connected to the inner side of the sliding sleeve.
As a further scheme of the invention, the right side of the heat insulating plate is attached to the left side of the installation groove plate, the fixed pressing plate is embedded into the embedded groove formed in the right side of the installation groove plate, the heat insulating plate and the installation groove plate are used for locking and connecting the installation groove plate to the inner side of the installation groove plate through bolts, the right side of the primary hot sprue is tightly attached to the left side of the main runner through bolts, the movable mold frame is sleeved on the left side of the outer wall of the hot runner assembly, and the plurality of secondary hot sprue driven mold frames penetrate through the inner side of the movable mold frame.
As a further scheme of the invention, the inner walls of the splitter plate and the plurality of secondary heat pumps are coated with high-temperature-resistant modified super-hydrophobic coatings, the left side of the splitter plate is provided with a spider-web-shaped groove, the outer wall of each secondary heat pump is provided with a spiral groove, and heating coils are wound in the spider-web-shaped groove and the spiral grooves.
As a further scheme of the invention, the fixed die assembly comprises a fixed base plate, the right side of the fixed base plate is fixedly connected with a tool plate, the right four corners of the tool plate are fixedly connected with guide posts, the center of the right side of the tool plate is fixedly connected with a reset spring disc, the right sides of a plurality of guide posts are connected with a fixed die frame through bolt handles, the right sides of the outer walls of the guide posts are in sliding connection with a supporting plate, the right sides of the supporting plate are fixedly connected with a plurality of cross bars in rectangular array at equal intervals, the right sides of each cross bar are in threaded connection with a top sheet, the fixed die assembly and the movable die assembly are symmetrically arranged on the same horizontal line, the left sides of the supporting plate are pressed on the right sides of the reset spring disc, the right sides of the supporting plate are attached to the left sides of the fixed die frame, and the cross bars penetrate from the inside of the fixed die frame.
As a further scheme of the invention, flange grooves are formed on the outer side of the right side of the fixed die frame and the outer side of the left side of the movable die frame, square through holes matched with the outline of the fixed die frame are formed on the right side of the fixed die frame at positions corresponding to the plurality of inserted bars, and a plurality of groups of clamping blocks are machined on the right side of the fixed die frame in a rectangular array at equal intervals.
As a further scheme of the invention, the die core fixing mechanism comprises a plurality of male die cores, the male die cores are respectively clamped on the right side of the fixed die frame through clamping blocks, the clamping frames I are buckled on the outer sides of the male die cores, the clamping frames I are clamped in flange grooves formed in the outer sides of the right sides of the fixed die frames and are combined with the right sides of the fixed die frames through bolts, the right sides of the male die cores are symmetrically provided with a plurality of female die cores, the outer sides of the female die cores are buckled with clamping frames II, the right sides of the female die cores are respectively provided with clamping grooves matched with the left sides of the nozzles, the clamping grooves can be clamped on the left sides of the nozzles, the right sides of the clamping frames II are clamped in the flange grooves formed in the outer sides of the left sides of the movable die frames, the top piece can be embedded in the right sides of the male die cores through bolts, and the inner expansion sleeve penetrates through the center of the inner sides of the female die cores.
The invention has the beneficial effects that:
(1) The fixed die assembly, the movable die assembly and the die core fixing mechanism are matched to work, the fixed die assembly forms a stable supporting system through the fixed seat plate and the tool plate, the movable die assembly ensures tight connection of all parts through the sliding seat plate and the connecting sheet, a primary hot sprue of the hot runner assembly is tightly attached to a main runner, a nozzle is precisely matched with a clamping groove of a female die core, leakage of injection molding mother liquor is avoided, tightness and stability of an injection molding process are ensured, the male die core is preliminarily fixed through a clamping block on the right side of the fixed die frame and then is buckled and locked by a clamping frame I, the female die core is fixed with the movable die frame through a clamping frame II, the corresponding clamping frame is only required to be disassembled during replacement, the whole die assembly is not required to be disassembled, and the male die core or the female die core can be independently replaced, so that die replacement difficulty and time cost of production of workpieces with multiple specifications are greatly reduced.
(2) Through the mutual matching of the fixed die assembly and the inserted link, when the die is closed, the inserted link of the movable die assembly automatically penetrates through the through hole of the fixed die frame and extrudes the supporting plate, so that the top sheet is contracted into the male die core, and the interference of the molding of the injection molding cavity is avoided; during die separation, after the inserted rod is removed, the reset spring disc pushes the supporting plate, the cross rod and the top piece to synchronously move right through resilience force, the top piece automatically ejects the workpiece out of the male die core, seamless linkage of the die stripping action and the die separation action is achieved, no additional manual or power intervention is needed, the guide pillar provides accurate guide for sliding of the supporting plate, the resilience force of the reset spring disc is stable and controllable, the consistency of each die stripping action of the top piece is ensured, and the workpiece damage or die clamping problem caused by die stripping deviation is reduced.
(3) Through the cooperation work of fixed component, the reason wire casing is seted up to the installation frid, and cooperation stay, spring telescopic link and press buckle can be fixed with the pencil chucking of hot runner assembly, avoids the pencil to tie up, scatter or wearing and tearing at the mould motion in-process, ensures hot runner electrical connection's stability, reduces the shut down because of pencil trouble leads to.
(4) Through the work of hot runner assembly, the inner wall coating high temperature resistant modified super hydrophobic coating is chewed to flow distribution plate and second grade heat, reduce the residual adhesion of mother liquor fuse-element of moulding plastics by a wide margin, daily clean only need cooperate a small amount of washing machine material or compressed air can accomplish, avoid leading to the work piece flaw because of remaining clearance is not thorough, flow distribution plate and second grade heat are chewed built-in heating coil, when changing mother liquor material or colour, can be with inside residual mother liquor heating to far above plastics decomposition temperature, get rid of the residue through the ablation cleanness fast, need not a large amount of washing machine material and wash, reduce down time and washing machine material extravagant.
Drawings
FIG. 1 is a schematic diagram of a split structure of a hot runner mold of the present invention;
FIG. 2 is a schematic view of another axial connection of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the assembled connection of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of another axial connection of FIG. 3 according to the present invention;
FIG. 5 is a schematic view showing the split structure of the stationary mold assembly and the movable mold assembly of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of another axial connection of FIG. 5 according to the present invention;
FIG. 7 is a schematic view of the connection structure of the stationary mold assembly and the partial mold insert fixing mechanism of FIG. 6 according to the present invention;
FIG. 8 is a schematic view of the connection structure of the movable mold assembly and the partial mold insert fixing mechanism of FIG. 5 according to the present invention;
FIG. 9 is a schematic illustration of the connection of the stationary member and the hot runner assembly of FIG. 1 in accordance with the present invention;
FIG. 10 is a schematic view of another axial connection of FIG. 9 according to the present invention;
FIG. 11 is a schematic illustration of the connection structure of the hot runner assembly of FIG. 9 in accordance with the present invention;
FIG. 12 is a schematic view of another axial connection of FIG. 11 in accordance with the present invention;
FIG. 13 is a schematic view of a partial cross-sectional connection of the hot runner assembly of FIG. 11 in accordance with the present invention;
FIG. 14 is a schematic view showing the connection structure of the fixing member of FIG. 2 according to the present invention;
fig. 15 is a schematic view of a partial front view of the attachment structure of the securing member of fig. 14 in accordance with the present invention.
In the figure, 1, a fixed die assembly; 101, fixing a seat board; 102, a template; 103, guide posts, 104, reset spring plates, 105, a fixed die frame, 106, a supporting plate, 107, a cross rod, 108, a top sheet, 2, a movable die assembly, 201, a sliding seat plate, 202, a fixed component, 2021, a mounting groove plate, 2022, a bump, 2023, a jogging groove, 2024, a shaft rod, 2025, a clamping rod, 2026, a stay, 2027, a pulling block, 2028, a buckle, 2029, a spring telescopic rod, 20210, a pressing buckle, 203, a hot runner assembly, 2031, a heat insulation plate, 2032, a fixed pressing plate, 2033, a primary heat nozzle, 2034, a splitter plate, 2035, a secondary heat nozzle, 2036, a nozzle, 2037, an inner expansion sleeve, 2038, a thimble 2039, a sleeve, 20310, a slide tube, 20311, a top rod, 20312, a limit sleeve, 20313, a special-shaped slide block, 20314, a supporting spring, 20315, a guide groove, 204, a junction box, 205, a main runner, 206, a movable die frame, 207, a connecting piece, 208, a plug block, 209, a cover, a 2034, a split die set, a retainer, a core insert, a plug insert, a core insert, a sealing mechanism, a plug insert 302, a core insert, a plug insert 302 and a die insert holder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention is a hot runner mold, which includes a fixed mold assembly 1, a movable mold assembly 2 is disposed on the right side of the fixed mold assembly 1, a mold insert fixing mechanism 3 is disposed on the inner sides of the fixed mold assembly 1 and the movable mold assembly 2, the mold insert fixing mechanism 3 is used for fixing a male mold insert 301 and a female mold insert 303, and plastic mother liquor can be injection molded into a finished workpiece through the mutual cooperation of the fixed mold assembly 1, the movable mold assembly 2 and the mold insert fixing mechanism 3;
The fixed die assembly 1 comprises a fixed base plate 101, the fixed base plate 101 is used for fixedly supporting a tool plate 102, the right side of the fixed base plate 101 is fixedly connected with the tool plate 102, the tool plate 102 is used for fixing a guide post 103 and a reset spring disc 104, the right four corners of the tool plate 102 are fixedly connected with the guide posts 103, the guide posts 103 are used for fixedly supporting a fixed die frame 105 and can enable a supporting plate 106 to slide on the outer wall of the fixed die frame, the center of the right side of the tool plate 102 is fixedly connected with a reset spring disc 104, the reset spring disc 104 is used for extruding a cross rod 107 supporting plate 106, and after the supporting plate 106 slides leftwards, the supporting plate 106 is reset to enable the supporting plate 106 to be attached to the left side of the fixed die frame 105 again, the right sides of the guide posts 103 are connected with the fixed die frame 105 through bolt fasteners, the cover half frame 105 is used for carrying out the joint to terrace die benevolence 301 and joint frame one 302, the outer wall right side sliding connection of a plurality of guide pillars 103 has backup pad 106, backup pad 106 is used for carrying out fixed support to horizontal pole 107, the right side of backup pad 106 is rectangular array equidistance rigid coupling and has a plurality of horizontal poles 107, horizontal pole 107 is used for supporting top piece 108, the right side of every horizontal pole 107 all threaded connection has top piece 108, top piece 108 is used for carrying out ejecting drawing of patterns to the injection molding work piece finished product of cooling shaping, cover half assembly 1 and movable mould assembly 2 symmetry set up on same horizontal line each other, the right side pressfitting of backup pad 106 is on reset spring dish 104, and the right side laminating of backup pad 106 is in the left side of cover half frame 105, a plurality of horizontal poles 107 run through from the inside of cover half frame 105.
In this embodiment, preferably, flange grooves are formed on the right side outer side of the fixed mold frame 105 and the left side outer side of the movable mold frame 206, the flange grooves are used for clamping the first clamping frame 302 and the second clamping frame 304, square through holes matched with the external profiles of the square through holes are formed on the right side of the fixed mold frame 105 and the positions corresponding to the plurality of inserted bars 210, after the fixed mold assembly 1 and the movable mold assembly 2 are assembled, the inserted bars 210 penetrate through the interiors of the square through holes and squeeze the supporting plate 106, so that the top sheet 108 is driven by the supporting plate 106 and the cross rod 107 to shrink into the right side of the male mold insert 301, after the fixed mold assembly 1 and the movable mold assembly 2 are separated, the inserted bars 210 cancel the extrusion of the supporting plate 106, and reset the supporting plate 106 by the resilience force generated by deformation of the reset spring disc 104, so that the supporting plate 106 is attached to the left side of the fixed mold frame 105 again, and then the top sheet 108 is ejected from the interior of the male mold insert 301, after the top sheet 108 is ejected from the interior of the male mold insert 301, a cooled finished product is ejected from the interior of the square through holes, the supporting plate 108 is extruded to the supporting plate 106, the top sheet 108 is driven by the cross rod 107 to shrink into the right side of the male mold insert 301, and the male mold insert 301 is clamped by the rectangular insert 301, and the fixed insert 301 is replaced by the single insert, and the male mold insert 301 is fixed by the fixed insert 301, and the male mold insert is convenient to be replaced by the primary insert.
In summary, when the fixed mold assembly 1 is assembled, the mold plate 102 is connected to the right side of the fixed seat plate 101 through screw threads, after the mold plate 102 is fixed, the supporting plate 106 is sleeved on the outer wall of the guide post 103 fixedly connected to the four corners of the right side of the mold plate 102, then the fixed mold frame 105 is connected with the guide post 103 through screw bolts, before the fixed mold frame 105 is connected with the guide post 103, a plurality of cross bars 107 on the right side of the supporting plate 106 penetrate through the inside of the fixed mold frame 105, then the male mold insert 301 in the mold insert fixing mechanism 3 is clamped to the right side of the fixed mold frame 105 in sequence, so that coarse cloth fixing is performed on the male mold insert 301, after the male mold insert 301 is clamped and fixed, the first clamping frame 302 is clamped to the inside of the flange groove formed on the right side of the fixed mold frame 105, and is connected with the fixed mold frame 105 through screw threads through screw bolts, finally, the top sheet 108 is connected to the right side of the outer wall of the cross bar 107 in a threaded manner, so that the assembly of the fixed die assembly 1 and the male die insert 301 can be completed, when the male die insert 301 with different specifications needs to be replaced, the first clamping frame 302 is taken down from the right side of the fixed die frame 105, the buckling and clamping of the first clamping frame 302 to the male die insert 301 are canceled, then the male die insert 301 which needs to be replaced is replaced, the male die insert 301 is convenient to mount and dismount, in the die assembly stage, the fixed die assembly 1 and the movable die assembly 2 are closed along the same horizontal line, at the moment, the insert rod 210 in the movable die assembly 2 is aligned with the square through hole on the fixed die frame 105 and penetrates through the inside of the square through hole, the support plate 106 positioned on the outer wall of the guide post 103 is directly extruded, the support plate 106 slides leftwards along the guide post 103 after being extruded, the reset spring plate 104 in the center of the work die plate 102 is compressed, the cross bar 107 connected with the support plate 106 drives the top sheet 108 to shrink leftwards synchronously, finally, the top sheet 108 is stored in the right side of the male die core 301, the workpiece forming is prevented from being disturbed in the injection molding process, the fixed die assembly 1 is separated from the movable die assembly 2 in the die separation stage, the insert rod 210 withdraws from the movable die assembly 2 to cancel extrusion of the supporting plate 106, the compressed reset spring disc 104 releases the rebound force to push the supporting plate 106 to slide rightwards along the guide post 103 until the left side of the fixed die frame 105 is attached again, the cross rod 107 and the top sheet 108 are driven to synchronously move rightwards while the supporting plate 106 is reset, the top sheet 108 is ejected from the inner part of the male die core 301, a cooled and formed injection molding workpiece finished product is ejected from the right side of the male die core 301, the demoulding operation is realized, and in the whole process, the parts such as the fixed seat plate 101, the molded plate 102, the guide post 103 and the like always provide stable support and guide, and the action accuracy and control of all the moving parts are ensured, so that the injection molding and demoulding circulation is completed efficiently.
Referring to fig. 1-15, in the second embodiment, the movable mold assembly 2 includes a sliding seat plate 201, the sliding seat plate 201 is used for fixedly supporting a fixing member 202, a fixing member 202 is disposed on the left side of the sliding seat plate 201, the fixing member 202 is used for fixedly mounting a hot runner assembly 203, and is capable of sorting and generalizing a wire harness of the hot runner assembly 203, preventing the wire harness from being knotted and scattered, facilitating connection of a wire harness end of the hot runner assembly 203 with a junction box 204, a hot runner assembly 203 is disposed in the fixing member 202, the hot runner assembly 203 is used for heating and conveying injection molding mother liquor, extruding and injecting the mother liquor into a cavity 303, front and rear ends of the center of the left side of the sliding seat plate 201 are both connected with the junction box 204 through bolts, the junction box 204 is used for connecting the wire harness of the hot runner assembly 203, the wire harness is convenient to be communicated with an external control box, a main runner 205 is arranged at the center of the right side of a sliding seat plate 201, the main runner 205 is used for conveying injection molding mother liquor into a hot runner assembly 203, a movable die frame 206 is arranged on the left side of a fixing member 202, the movable die frame 206 is used for fixedly supporting the left side of the hot runner assembly 203 and can be used for installing a female die core 303 and a clamping frame two 304 and fixing a plurality of inserting rods 210, a plurality of connecting pieces 207 are arranged on the right sides of the top and the bottom of the movable die frame 206 at equal intervals, the connecting pieces 207 are used for locking and connecting an installing groove plate 2021 in the fixing member 202 with the movable die frame 206, the left side of each connecting piece 207 is connected with right side threads of the top and the bottom of the movable die frame 206 through bolts, an inserting block 208 is inserted into the right side of the center of the front surface of the movable die frame 206 and the right side of the center of the back, the inserting block 208 can be inserted into a bump 2022, therefore, the protruding block 2022 inserted into the movable die frame 206 is tightly clamped with the protruding block 2022, the movable die frame 206 is conveniently and fixedly mounted on the left side of the mounting groove plate 2021, the sealing plate 209 is arranged on the front surface of the front end inserting block 208 and the back of the rear end inserting block 208 in a fitting mode, the sealing plate 209 is used for enclosing the inserting block 208 and can tightly press the inserting block 208 into the protruding block 2022, the inserting block 208 and the protruding block 2022 are tightly connected together, the sealing plate 209 is connected on the right side of the center of the front surface of the movable die frame 206 and the right side of the center of the back through bolts, a plurality of inserting rods 210 are fixedly connected on the outer side of the left side of the movable die frame 206 at equal intervals, and the inserting rods 210 are used for extruding the supporting plate 106.
In this embodiment, preferably, a slot is formed in the center of the right side of the movable mold frame 206 for wrapping the left side of the hot runner assembly 203, slots are formed in the front end and the rear end of the center of the right side of the movable mold frame 206, the outer sides of the two slots are respectively communicated with the right side of the center of the front surface of the movable mold frame 206 and the right side of the center of the back, the bump 2022 can be plugged into the right side of the movable mold frame 206 through the slot, and the plug 208 can be plugged into the bump 2022 through the slot.
In this embodiment, preferably, the fixing member 202 includes a mounting groove plate 2021, the mounting groove plate 2021 is used for fixedly supporting the hot runner assembly 203, the front end and the rear end of the center of the left side of the mounting groove plate 2021 are fixedly connected with a protruding block 2022, the protruding block 2022 can be inserted into the right side of the movable mold frame 206 so as to initially support and fix the movable mold frame 206, the right side of the mounting groove plate 2021 is provided with a fitting groove 2023, the fitting groove 2023 is used for fitting and installing a fixed pressing plate 2032 in the hot runner assembly 203 and guiding and arranging the wire bundles of the hot runner assembly 203, the front end and the rear end of the top of the center of the right side of the mounting groove plate 2021 are fixedly connected with a plurality of shaft rods 2024 at equal intervals, the shaft rods 2024 are used for supporting the stay 2026 and enabling the stay 2026 to rotate around the shaft rod 2024, the front end and the rear end of the bottom of the center of the mounting groove plate 2021 are fixedly connected with a plurality of clamping rods 2025 at equal intervals, the clamping rods 2025 are used for clamping buckles 2028 at the bottoms of the supporting rods 2026, the clamping rods 2025 and the shaft rods 2024 are mutually parallel, the outer wall of each shaft rod 2024 is rotatably connected with the supporting rod 2026, the supporting rod 2026 is used for fixedly supporting the spring telescopic rod 2029, the bottom of each supporting rod 2026 is fixedly connected with a pulling block 2027, the pulling block 2027 is used for pulling the supporting rod 2026, the bottom of the left side of each supporting rod 2026 is fixedly connected with the clamping buckle 2028, the clamping buckle 2028 is used for clamping and fixing the supporting rod 2026, two spring telescopic rods 2029 are symmetrically fixedly connected to the left side of each supporting rod 2026, the spring telescopic rods 2029 are used for supporting the pressing buckles 20210 and can extrude the pressing buckles 20210, the left side of each group of spring telescopic rods 2029 are fixedly connected with the pressing buckles 20210 and are used for pressing the hot runner assembly 203, the wire harness is prevented from moving out of the inside of the wire arrangement grooves, the mounting groove plate 2021 can be connected to the left side of the sliding seat plate 201 through bolts and threads, the top left side and the bottom left side of the installation groove plate 2021 are both connected with the right side threads of the connecting sheet 207 through bolts, the protruding blocks 2022 can be inserted into the inside of the slots formed in the front end and the rear end of the right side of the movable mold frame 206, and the inner sides of the two inserting blocks 208 can be connected with the outer sides of the two protruding blocks 2022 in an embedded manner.
In this embodiment, preferably, the front end and the rear end of the right side of the installation groove plate 2021 are symmetrically provided with a plurality of wire arranging grooves, a plurality of press buckles 20210 are arranged on the right side of the wire arranging grooves, the left sides of the press buckles 20210 are parallel to the right sides of the wire arranging grooves, the wire harness of the hot runner assembly 203 is clamped inside the wire arranging grooves, the end of the wire harness of the hot runner assembly 203 is communicated with the junction box 204, and the left sides of the press buckles 20210 are buckled on the right side of the outer wall of the wire harness of the hot runner assembly 203.
In this embodiment, preferably, the hot runner assembly 203 includes a heat insulation plate 2031, the heat insulation plate 2031 is used for separating the splitter plate 2034 from the installation groove plate 2021, a fixed pressing plate 2032 is connected to the right side of the heat insulation plate 2031 through a bolt thread, the fixed pressing plate 2032 is matched with the heat insulation plate 2031, the heat insulation plate 2031 can be clamped and fixed to the left side of the installation groove plate 2021, a first-stage heat sprue 2033 is formed at the center of the right side of the fixed pressing plate 2032, the first-stage heat sprue 2033 is communicated with the main runner 205, the injection molding mother liquor can be conveyed into the injection molding mother liquor, the splitter plate 2034 is fixedly connected to the left side of the heat insulation plate 2031, the splitter plate 2034 is used for splitting the injection molding mother liquor entering the first-stage heat sprue 2033, and enabling the injection molding mother liquor to be uniformly distributed into the second-stage heat sprue 2035, the plurality of second-stage heat sprue 2035 are fixedly connected to the left side of the splitter plate 2034 in a rectangular array at equal intervals, the second-stage heat sprue 2035 is used for extruding the injection molding mother liquor, the left side of each secondary hot sprue 2035 is connected with a nozzle 2036 through a flange plate in a threaded manner, the nozzle 2036 is used for fixing an inner expansion sleeve 2037 and clamping the right side of a female die core 303, the inner center of each nozzle 2036 is fixedly connected with the inner expansion sleeve 2037, the inner expansion sleeve 2037 is used for supporting a thimble 2038, the thimble 2038 can slide in the inner part of the thimble 2038 and convey injection mother liquor to the inner part of the female die core 303, the thimble 2038 is connected with the thimble 2038 in a sliding manner, the thimble 2038 is used for extruding the inner wall of the inner expansion sleeve 2037, when the thimble 2038 slides to the right side, the plugging of the left side of the inner expansion sleeve 2037 can be canceled, so that injection mother liquor is extruded from the left side of the inner expansion sleeve 2037, the inside left side of each secondary hot sprue 2035 is clamped with a sleeve 2039, the sleeve 2039 is used for supporting a sliding tube 20310, the sliding tube 10 can slide left and right in the inside the sleeve 2039, the inside of the right side of each sleeve 2039 is slidably connected with a sliding tube 20310, the sliding tube 20310 is used for extruding the special-shaped sliding blocks 20313, so that the ejector pins 20311 are driven to move by the special-shaped sliding blocks 20313, the right side of the outer wall of the sliding tube 20310 is attached to the inner wall of the second-stage heat pump nozzle 2035, after injection molding mother liquor enters the inside of the second-stage heat pump nozzle 2035, the right side of the sliding tube 20310 is extruded, so that the sliding tube 20310 is pushed to slide leftwards, after the sliding tube 20310 slides to the left side of the inside of the sleeve 2039, injection molding mother liquor enters the inside of the guide groove 20315, the right side of each ejector pin 2038 is fixedly connected with an ejector pin 20311, the ejector pin 20311 is used for driving the ejector pins 2038 to move, the right side of the outer wall of each ejector pin 20311 is slidably connected to the left side of the inside of the sleeve 2039, a limit sleeve 20312 is fixedly connected to the center of the left side of the inside of each sleeve 2039, the limit sleeve 20312 is used for limiting the movement track of the ejector pins 20311 and the special-shaped sliding blocks 20313, the right side of the outer wall of the ejector rod 20311 is slidingly connected inside the limit sleeve 20312, the inside of the right side of the outer wall of each ejector rod 20311 is slidingly connected with a special-shaped sliding block 20313, the special-shaped sliding block 20313 is used for driving the ejector rod 20311 to move, when the sliding tube 20310 slides leftwards, the special-shaped sliding block 20313 is pushed to slide inside the ejector rod 20311, the ejector rod 20311 is driven to slide rightwards, the ejector rod 2038 is further driven by the ejector rod 20311 to move rightwards together, the ejector rod 2038 is enabled to cancel the blocking of the left side of the inner expansion sleeve 2037, conversely, when the sliding tube 20310 slides rightwards, the special-shaped sliding block 20313 is also driven to slide in the opposite direction inside the ejector rod 20311, the ejector rod 20311 is driven to reset leftwards, the ejector rod 2038 is driven by the ejector rod 20311 to be extruded leftwards inside the inner expansion sleeve 2037 again, the top end and the bottom end of the special-shaped sliding block 20313 is respectively attached to the top end and the bottom end of the left side of the inner wall of the sliding tube 20310, the inner sides of each ejector rod 20311 and each sliding tube 20310 are fixedly connected with a supporting spring 20314, the supporting springs 20314 are used for resetting the sliding tubes 20310, a plurality of guide grooves 20315 are formed in the left side of the inside of each secondary hot sprue 2035 at equal intervals in an annular array, the guide grooves 20315 are used for conveying injection molding mother liquor, and the left side of the guide grooves 20315 is communicated with the left side of the inside of the inner expansion sleeve 2037.
In this embodiment, preferably, the right side of the heat insulation plate 2031 is attached to the left side of the installation groove plate 2021, the fixed pressing plate 2032 is embedded in the embedded groove 2023 formed on the right side of the installation groove plate 2021, the heat insulation plate 2031 and the installation groove plate 2021 lock-connect the installation groove plate 2021 on the inner side thereof by bolts, and are attached to the left side of the sliding seat plate 201 by bolts, the right side of the primary heat pumping nozzle 2033 is tightly attached to the left side of the main runner 205, the movable mold frame 206 is sleeved on the left side of the outer wall of the hot runner assembly 203, and the plurality of secondary heat pumping nozzles 2035 penetrate from the inside of the movable mold frame 206.
In this embodiment, preferably, the inner walls of the splitter plate 2034 and the plurality of second-stage heat pumps 2035 are coated with the high-temperature-resistant modified superhydrophobic coating, which can greatly reduce the adhesion of melt residues, and can be efficiently cleaned by combining a small amount of washer materials or compressed air, the left side of the splitter plate 2034 is provided with a spider-web-shaped groove, the outer wall of each second-stage heat pump 2035 is provided with a spiral groove, the interiors of the spider-web-shaped groove and the spiral grooves are coiled with heating coils, the splitter plate 2034 and the second-stage heat pump 2035 can be heated and insulated at ordinary times, so that the injection mother liquor is always kept in a melt state, and when the injection mother liquor material is required to be replaced or the color of the injection mother liquor is required to be replaced, the heating coils can heat the injection mother liquor inside the splitter plate 2034 and the second-stage heat pump 2035 to be far higher than the decomposition temperature of plastics, thereby realizing ablation cleaning, saving the washer materials, simultaneously rapidly cleaning the interiors of the splitter plate 2034 and the second-stage heat pump 2035, realizing rapid switching of the injection materials or the color, greatly reducing the waste time of the injection mother liquor, and greatly reducing the waste of the production time of the washer materials.
To sum up, when assembling the movable die assembly 2, the installation groove plate 2021 is first connected to the left side of the sliding seat plate 201 by screw threads, then the heat insulation plate 2031 is attached to the left side of the installation groove plate 2021, then the fixing pressing plate 2032 is fitted into the fitting groove 2023 formed on the right side of the installation groove plate 2021, and the heat insulation plate 2031 is then attached to the left side of the sliding seat plate 201 by screw threads, The fixed pressing plate 2032 is tightly connected with the installation groove plate 2021 and the sliding seat plate 201, at this time, the right side of the primary heat pump nozzle 2033 is tightly attached to the left side of the main runner 205, so as to ensure that injection molding mother liquor can smoothly flow into the primary heat pump nozzle 2033 from the main runner 205, then, the movable mold frame 206 is sleeved on the left side of the outer wall of the hot runner assembly 203, the interiors of the plurality of secondary heat pump nozzles 2035 and driven mold frames 206 penetrate, the connecting piece 207 is respectively connected with the installation groove plate 2021 and the movable mold frame 206 through bolts in a threaded manner, so as to realize the stable connection of the installation groove plate 2021 and the movable mold frame 206, then, the inserting block 208 is inserted into the protruding block 2022 in the right side of the movable mold frame 206 through a slot, the sealing piece 209 is tightly pressed, the sealing piece 209 is fixed on the movable mold frame 206 through bolts, so as to ensure that the inserting block 208 is tightly connected with the protruding block 2022, and when the wire bundles of the hot runner assembly 203 are arranged, the wire harness is clamped into wire arranging grooves symmetrically formed in the front end and the rear end of the right side of the mounting groove plate 2021, the end of the wire harness is communicated with the junction box 204, then, a spanner block 2027 at the bottom of a stay 2026 is moved to enable the stay 2026 to rotate around a shaft rod 2024, a buckle 2028 at the bottom of the stay 2026 is clamped onto a clamping rod 2025, at the moment, a spring telescopic rod 2029 extrudes a press buckle 20210, the left side of the press buckle 20210 is buckled on the right side of the outer wall of the wire harness of the hot runner assembly 203, the wire harness is prevented from moving out of the wire arranging grooves, the wire harness is finished to be arranged and fixed, in the injection molding process, injection molding mother liquor enters a primary hot sprue 2033 from a main runner 205, then flows into a splitter plate 2034, the injection molding mother liquor is evenly distributed into each secondary hot sprue 2035 by the splitter plate 2034, after the injection molding mother liquor enters the interior of the secondary hot sprue 2035, the right side of the slide pipe 20310 is extruded, the slide pipe 20310 is pushed to slide leftwards, the slide pipe 2039 is slid leftwards, the injection molding mother liquor enters the guide groove 20315, meanwhile, the sliding tube 20310 pushes the special-shaped sliding block 20313 to slide in the ejector rod 20311, drives the ejector rod 20311 to slide rightwards, and further drives the ejector pin 2038 to move rightwards together through the ejector rod 20311, so that the ejector pin 2038 cancels the blocking of the left side of the inner expansion sleeve 2037, the injection molding mother liquor is extruded from the left side of the inner expansion sleeve 2037, enters the inside of the female die insert 303 through the nozzle 2036 to perform injection molding, when injection molding is completed, and demolding is needed, the movable die assembly 2 and the fixed die assembly 1 are separated along the same horizontal line, the insert 210 in the movable die assembly 2 is evacuated along with the movable die assembly 2, the extrusion of the supporting plate 106 is canceled, the compressed reset spring disc 104 releases the rebound force, the supporting plate 106 is pushed to slide rightwards along the guide post 103, the cross rod 107 and the top piece 108 are driven to synchronously move rightwards, the top piece 108 is ejected from the inside of the male die insert 301, the cooled molded injection molding finished product is ejected from the inside of the right side of the male die insert 301, the demolding operation is realized, after the process of extruding the injection molding mother liquor into the female die core 303 is finished, the injection molding mother liquor is conveyed into the second-stage hot sprue 2035, after the injection molding extrusion is stopped, the supporting spring 20314 in the second-stage hot sprue 2035 can reset the sliding tube 20310 to drive the special-shaped sliding block 20313 to reversely slide, the ejector rod 20311 and the ejector pin 2038 are reset leftwards and are extruded to the left side in the inner expansion sleeve 2037 again, the preparation is made for the next injection molding, the whole hot runner mold efficiently completes the circulation of injection molding and demolding through the cooperative work of all parts, when the injection molding mother liquor material is required to be replaced or the color of the injection molding mother liquor is required to be replaced, the inner walls of the splitter plate 2034 and the second-stage hot sprue 2035 are coated with high-temperature-resistant modified superhydrophobic coatings, the adhesion of melt residues can be greatly reduced, and the injection molding mother liquor can be efficiently cleaned by combining a small amount of washing machine materials or compressed air, the injection molding mother liquor inside the splitter plate 2034 and the secondary hot sprue 2035 can be heated to be far higher than the decomposition temperature of plastics by matching with the heating coil, ablation cleaning is realized, the cleaning of the inside of the splitter plate 2034 and the secondary hot sprue 2035 can be realized while the cleaning of the washing machine material is saved, the rapid switching of the material or the color of the injection molding mother liquor is realized, the downtime and the waste of the washing machine material are reduced, and the production efficiency is improved.
Referring to fig. 1,2 and 5-8, the die core fixing mechanism 3 includes a plurality of die cores 301, the plurality of die cores 301 are respectively clamped on the right side of the fixed die frame 105 through clamping blocks, the first clamping frame 302 is clamped on the outer side of the plurality of die cores 301, the first clamping frame 302 is clamped inside a flange groove formed on the outer side of the right side of the fixed die frame 105 and is combined with the right side of the fixed die frame 105 through bolts, a plurality of die cores 303 are symmetrically arranged on the right side of the plurality of die cores 301, the second clamping frame 304 is clamped on the outer side of the plurality of die cores 303, clamping grooves matched with the left side of the nozzle 2036 are formed on the right side of each die core 303, the left side of the nozzle 2036 can be clamped through the clamping grooves, the right side of the second clamping frame 304 is clamped inside the flange groove formed on the outer side of the left side of the movable die frame 206, the top piece 108 can be clamped with the left side of the movable die frame 206 together through bolts, and the top piece 108 can be embedded into the inner portion of the die core 2037, and the inner portion of the die core 303 is stretched out of the inner portion of the die core 303.
In the fourth embodiment, referring to fig. 1 to 15, the first embodiment, the second embodiment and the third embodiment are combined to obtain the present embodiment, in terms of assembly, the installation and matching of the mold core fixing mechanism 3, the fixed mold assembly 1 and the movable mold assembly 2 are more compact, the plurality of male mold cores 301 are firmly clamped on the right side of the fixed mold frame 105 through clamping blocks, the first clamping frame 302 further strengthens the connection between the male mold cores 301 and the fixed mold frame 105, so that the male mold cores 301 cannot shift during injection molding, and in the same way, the plurality of female mold cores 303 are tightly connected with the movable mold frame 206 through the second clamping frame 304, and the clamping grooves on the right side of the female mold cores 303 are precisely matched with the left side of the outer wall of the nozzle 2036, so that injection molding mother liquid can be accurately injected into the female mold cores 303 from the nozzle 2036;
In the injection molding process, the working efficiency and stability of the hot runner assembly 203 are further improved, injection molding mother liquor enters the primary heat pump nozzle 2033 from the main runner 205 and is uniformly distributed to each secondary heat pump nozzle 2035 through the splitter plate 2034, as the heat resistant modified super-hydrophobic coating is coated on the inner walls of the secondary heat pump nozzle 2035 and the splitter plate 2034, the residual adhesion of melt is greatly reduced, meanwhile, the heating coil can accurately heat the injection molding mother liquor according to the requirement, when the injection molding mother liquor material or color needs to be replaced, the heating coil can heat the injection molding mother liquor in the secondary heat pump nozzle 2035 and the splitter plate 2034 to be far higher than the decomposition temperature of plastics, ablation cleaning is realized, and a small amount of cleaning materials or compressed air are matched, so that cleaning work can be rapidly completed, and the downtime and waste of the cleaning materials are reduced;
In the demolding process, when the movable mold assembly 2 and the fixed mold assembly 1 are separated along the same horizontal line, the plunger 210 in the movable mold assembly 2 cancels the extrusion of the supporting plate 106, the reset spring disc 104 releases the rebound force to push the supporting plate 106 to slide rightwards along the guide post 103 so as to drive the cross rod 107 and the top piece 108 to synchronously move rightwards, the top piece 108 is ejected from the inside of the male mold core 301, the finished product of the injection molded workpiece which is cooled and molded is ejected from the inside of the right side of the male mold core 301 smoothly, and the whole demolding process is smoother;
In addition, the wire arranging groove on the right side of the mounting groove plate 2021 is matched with the pressing buckle 20210, so that the confusion and displacement of the wire harness are effectively avoided, the electrical connection stability of the hot runner assembly 203 is guaranteed, meanwhile, the cooperative work of the stay 2026, the spring telescopic rod 2029, the pressing buckle 20210 and other components in the fixing member 202 is further improved, the reliability of wire harness fixing is further improved, the whole hot runner mold is tightly matched and cooperated with each component, efficient injection molding and demolding circulation is realized, and the production efficiency is improved.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
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| CN202511189721.6A CN120716111B (en) | 2025-08-25 | 2025-08-25 | A hot runner mold |
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| CN202511189721.6A CN120716111B (en) | 2025-08-25 | 2025-08-25 | A hot runner mold |
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Cited By (1)
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| CN121552675A (en) * | 2025-12-29 | 2026-02-24 | 辽宁弘基科技有限公司 | 3D printing equipment is used in production based on bellows-like work piece |
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