CN217916556U - Injection mold for producing arc plastic part - Google Patents
Injection mold for producing arc plastic part Download PDFInfo
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- CN217916556U CN217916556U CN202222309272.2U CN202222309272U CN217916556U CN 217916556 U CN217916556 U CN 217916556U CN 202222309272 U CN202222309272 U CN 202222309272U CN 217916556 U CN217916556 U CN 217916556U
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- 229920003023 plastic Polymers 0.000 title claims abstract description 46
- 239000004033 plastic Substances 0.000 title claims abstract description 46
- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 238000001746 injection moulding Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 36
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 14
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000005267 amalgamation Methods 0.000 abstract 1
- 239000000306 component Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The utility model discloses an injection mold for circular arc plastic part of production, including the cover half subassembly that is equipped with the runner of moulding plastics, can with the cover half subassembly is amalgamated and is located movable mould subassembly below the cover half subassembly and locating ejecting subassembly in the movable mould subassembly is formed with two and the communicating mould plastics die cavity of runner of moulding plastics after cover half subassembly and movable mould subassembly amalgamation, is equipped with the side core subassembly that is used for the oblique top subassembly of shaping back-off and is used for the shaping to detain the chamber in the cover half subassembly, can injection moulding go out the product that the structure is complicated, is equipped with mobilizable thimble in the movable mould subassembly, after ejector plate jack-up oblique top subassembly and thimble, even the circular arc plastic part that the structure is complicated, the drawing of patterns is also very easy.
Description
Technical Field
The utility model belongs to the technical field of the injection molding processing, concretely relates to production circular arc is moulded and is used injection mold.
Background
The injection molding is a processing method that the hot melt plastic material is injected into a closed cavity with a required shape in a mold at a high speed, and after the plastic material is cooled and solidified, the mold is opened to eject the solidified plastic product out, so as to obtain the molded product.
The arc-shaped workpiece is a common injection molding part, in addition, the arc-shaped workpiece has an inverted buckle, the left end and the right end of the arc-shaped workpiece are provided with a plurality of buckle cavities, and the part of the arc-shaped workpiece interfering with the mold opening direction is called as the inverted buckle.
SUMMERY OF THE UTILITY MODEL
The mould structure that processing complex product that exists to prior art designed is complicated, and the product is difficult to the technical problem of drawing of patterns after the shaping moreover, the utility model provides an injection mold for piece is moulded to production circular arc.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an injection mold for producing circular arc plastic parts comprises a fixed mold component provided with an injection runner, a movable mold component which can be spliced with the fixed mold component and is arranged below the fixed mold component, and an ejection component arranged in the movable mold component;
the fixed die assembly comprises a top end plate, a fixed die plate and a fixed die core, wherein the top end plate is provided with a glue injection hole at the top end, the fixed die plate is arranged below the top end plate and is provided with an upper mounting groove, the fixed die core is arranged in the upper mounting groove and is provided with an arc-shaped upper cavity which is sunken towards the top end plate, and two arc-shaped upper forming grooves which are in the same direction as the sunken direction of the upper cavity are arranged in the upper cavity at intervals;
the movable mold component comprises a movable mold seat, a movable mold plate arranged above the movable mold seat and provided with a lower mounting groove and a movable mold core arranged in the lower mounting groove, the movable mold core is provided with a lower convex part protruding towards the direction of the fixed mold core and matched with the upper concave cavity, the lower convex part is provided with two lower forming groove groups, each lower forming groove group is formed by arranging two lower forming grooves at intervals, an outer convex mold core is formed between the two lower forming grooves, and when the lower forming grooves and the upper forming grooves are spliced, an injection molding cavity communicated with the injection molding runner is formed; the two sides of each outer convex mold core are respectively provided with an opening group, each opening group comprises two oblique top openings which are distributed at intervals and a line position opening which is arranged between the two oblique top openings, the two sides of the line position opening are respectively communicated with the two oblique top openings, and the middle section of each outer convex mold core is also provided with a thimble opening;
the ejection assembly comprises two inclined ejection assemblies and ejector pins, the two inclined ejection assemblies penetrate through the inclined ejection openings respectively to be used for forming the back-off, the ejector pins penetrate through the ejector pin openings, an inner slide mechanism penetrating through the slide openings is arranged on one side of each inclined ejection assembly, a side core assembly is arranged below each inner slide mechanism, part of the side core assembly abuts against the inner slide mechanism to be used for forming the buckling cavity, when demolding is conducted, the inner slide mechanism moves towards the inner direction of the slide openings, the inclined ejection assemblies and the ejector pins are ejected by ejector plates arranged in the movable die holders, the inclined ejection assemblies are separated from the circular arc plastic parts, and therefore the circular arc plastic parts formed by machining are ejected.
Furthermore, the movable mould base comprises a movable mould base plate, movable mould supporting plates vertically connected to the movable mould base plate and arranged at intervals, and a mounting plate arranged between the two movable mould supporting plates, the upper part of each movable mould supporting plate is connected with the corresponding movable mould plate, a mounting cavity for accommodating the ejector plate is formed between the two movable mould supporting plates, and the upper part of the ejector plate is connected with the mounting plate.
Further, the oblique top subassembly includes two oblique top mechanisms of arranging at an interval, oblique top mechanism include one end with oblique footstock that the mounting panel is connected and with oblique footstock other end sliding connection's oblique top, and distribute in evagination core is two with one side oblique tops are "eight" style of calligraphy and arrange.
Further, the top to one side include with the oblique top that the footstock is connected support and set firmly in the oblique top main part of the upper end that the top supported to one side, the top main part to one side includes a perpendicular to the horizontal plane that the top supported to one side, with the oblique top arc surface that horizontal plane one end is connected, with the inclined plane that top arc surface one end is connected, with the plane that inclined plane one end is connected, with fillet portion and one end that plane one end is connected with fillet portion connect and the other end with the perpendicular that the top support is connected to one side, cloth is equallyd divide to the both sides outer wall of the top arc surface to one side has a plurality of lines groove, the line groove is followed the one end of the top arc surface to one side is arranged along the other end.
Further, the shape of pushing up the opening to one side with push up shape looks adaptation to one side, two to one side the opening with carry and be formed with an abutting portion including encircleing behind the position opening intercommunication, the first end of abutting portion with one of them one side lateral wall of pushing up the main part to one side offsets, the second end of abutting portion with another push up main part one side lateral wall to one side offsets, and the third end of abutting portion with interior position mechanism offsets, just the surface and two of abutting portion push up the oblique top arc surface of main part to one side and the surface parallel and level of interior position mechanism of carrying.
Further, interior slide mechanism include with the top end board is connected and is followed actuating lever that stretches out in the fixed die plate, locate the slide rail group of movable mould core bottom surface, with slide rail group sliding connection's sliding block and with the sliding block is connected perpendicularly and has the perpendicular piece of an outer convex part, the actuating lever has one and exposes in the outer slope section of fixed die plate, the sliding block corresponds position department and has seted up the run through the inclined cavity of sliding block, slide rail group comprises the slide rail that two intervals were arranged, two form between the slide rail and go a position passageway, the sliding block respectively with two slide rail sliding connection, just the sliding block can follow it moves back and forth to go the position passageway, outer convex part install in going the position passageway and with butt portion counterbalance, when the drawing of patterns, outer convex part orientation go the intraoral direction of position passageway and remove, the outer convex part left and right sides has an L type respectively and connects the face, two L type is connected the face respectively the one-to-one with be located the oblique top main part looks butt of butt both sides.
Furthermore, the movable mold core is distributed with four inwards sunken connecting grooves, every two the connecting grooves are respectively distributed in the both sides of evagination core, every install in the connecting groove and be located the embedding piece of sliding block top, embedding piece part is located inside the lower convex part, just the embedding piece corresponds the position department and offers the spacing groove that is used for including the perpendicular piece holding.
Furthermore, the limiting groove is of an inverted U-shaped structure.
Further, the part of the embedded block exposed outside the lower convex part is connected with the side core assembly, the side core assembly comprises a first side core and second side cores respectively arranged at two sides of the first side core, when the mold is closed, the first side core abuts against the lower end surface of the outer convex part, and the upper end surface of the outer convex part abuts against the abutting part.
Furthermore, the two second side cores are fixedly connected to the upper end face of the embedded block and are equal to the first side cores in distance.
To sum up, the beneficial effects of the utility model are that: firstly, the convex core is matched with the upper forming groove to produce the circular arc-shaped plastic part, the inclined top assembly passes through the convex core and is designed in the injection molding cavity, the back-off can be smoothly processed, the design is compact, the layout is reasonable, the mold design space is saved, the side core assembly is used for forming the buckle cavity, the purpose of processing complex workpieces is achieved, and the effect of saving the mold design space is also achieved. Secondly, after the inside direction of outer convex part orientation slide opening removed, the oblique top main part that both sides slope removed can remove to break away from with the back-off, and the oblique top and the thimble of product below are smooth with circular arc plastic part jack-up demolding, and in the type intracavity of moulding plastics behind the side core subassembly compound die of both sides, the position of distribution is the position of taking off by force of the drawing of patterns of being convenient for to solve the inconvenient problem of injection moulding product drawing of patterns of complex structure.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the arc plastic part processed and formed by the present invention.
Fig. 2 is a schematic structural view of an injection mold for producing a circular arc plastic part provided by the utility model.
Fig. 3 is a schematic diagram of the internal structure of the fixed mold core in the invention.
Fig. 4 is a schematic structural diagram of the middle moving die assembly of the present invention.
Fig. 5 is the structural schematic diagram of the assembled state of the middle lifter assembly and the movable mold core of the present invention.
Fig. 6 is a schematic structural view of the movable mold core in fig. 5 without the pitched roof assembly.
Fig. 7 is a schematic diagram of the position distribution structure of the lifter assembly of the present invention.
Fig. 8 is a schematic structural view of the arc-shaped plastic part supported by the middle pitched roof assembly of the present invention.
Fig. 9 is a schematic structural view of the connection between the middle lifter assembly and the inner slide mechanism of the present invention.
Fig. 10 is a schematic perspective view of the middle and inner slide mechanism of the present invention.
Fig. 11 is a schematic perspective view of a side core assembly according to the present invention.
In the drawing, 100-circular arc plastic piece, 110-inverse buckle, 111-texture, 120-buckle cavity, 200-fixed mould component, 210-top end plate, 211-glue injection port, 220-fixed mould plate, 230-fixed mould core, 231-upper cavity, 2310-upper forming groove, 240-injection runner, 300-movable mould component, 310-movable mould base, 311-movable mould base plate, 312-movable mould support plate, 313-mounting plate, 314-ejector plate, 320-movable mould plate, 330-movable mould core, 331-lower convex part, 3310-lower forming groove, 331 a-outer convex core, 331 b-oblique top through hole, 331 c-position through hole, 331 d-ejector pin through hole, 331 e-abutting part, 400-oblique top mechanism, 411-oblique top base, 412-oblique top, 4120-oblique top support, 4121-oblique top main body, 4121-4121 a, 4121 b-oblique top circular arc surface, 4121 c-oblique surface, 4121 d-plane, 4121 e-inverse circular corner part, 4121 f-oblique top support, 4121-vertical surface, 4121-oblique top groove, 4121-vertical groove, 500-600-vertical groove, 610-insert core block, 500-insert core block, 313-insert core block, and second core block.
Detailed Description
The present invention will be further described with reference to the following specific drawings.
As shown in fig. 1, the arc molding member 100 has an inverted buckle 110 at its side edge and a plurality of buckle cavities 120 at both ends.
As shown in fig. 2, the utility model provides an injection mold for circular arc plastic part of production, including the cover half subassembly 200 that is equipped with runner 240 that moulds plastics, can with cover half subassembly 200 is amalgamated and is located movable mould subassembly 300 of cover half subassembly 200 below and locate ejecting subassembly in the movable mould subassembly 300.
The fixed mold assembly 200 comprises a top end plate 210 with a glue injection hole 211 at the top end, a fixed mold plate 220 arranged below the top end plate 210 and having an upper mounting groove, and a fixed mold core 230 mounted in the upper mounting groove, as shown in fig. 3, the fixed mold core 230 has an arc-shaped upper cavity 231 recessed towards the top end plate 210, and two arc-shaped upper molding grooves 2310 are arranged in the upper cavity 231 at intervals and have the same recessed direction as the upper cavity 231.
As shown in fig. 4, the movable mold assembly 300 includes a movable mold base 310, a movable mold plate 320 disposed above the movable mold base 310 and having a lower mounting groove, and a movable mold core 330 mounted in the lower mounting groove, wherein the movable mold core 330 has a lower protrusion 331 protruding toward the fixed mold core 230 and adapted to the upper cavity 231, and two lower molding groove sets are disposed in the lower protrusion 331. Each lower molding groove group is formed by arranging two lower molding grooves 3310 at intervals, a convex core 331a is formed between the two lower molding grooves 3310, and when the lower molding grooves 3310 and the upper molding grooves 2310 are spliced, an injection molding cavity communicated with the injection molding runner 240 is formed. As shown in fig. 6, each of the two sides of the outer convex core 331a has a port group, the port group includes two oblique top ports 331b distributed at intervals and a row port 331c disposed between the two oblique top ports 331b, two sides of the row port 331c are respectively communicated with the two oblique top ports 331b, and each of the outer convex cores 331a has a thimble port 331d in the middle section.
The ejection assembly includes two slanted ejection elements passing through the slanted ejection openings 331b for forming the undercut 110 and a thimble 413 passing through the thimble opening 331d. As shown in fig. 5, an inner slide mechanism 500 passing through the slide opening 331c is disposed at one side of the lifter assembly, and a side core assembly 700 partially abutting against the inner slide mechanism 500 is disposed below the inner slide mechanism 500 for forming the buckle cavity 120. During demolding, the inner slide mechanism 500 moves toward the inside of the slide through hole 331c, and the lifter assembly and the ejector 413 are ejected by the ejector plate 314 disposed in the movable mold base 310, and the lifter assembly is separated from the arc plastic part 100, so as to eject the molded arc plastic part 100.
By adopting the structure, the upper molding groove 2310 and the lower molding groove 3310 are spliced together to form an injection molding cavity, the fusing material is poured from the glue injection port 211 and flows into the injection molding cavity to process the arc-shaped plastic part 100, the inverted buckle 110 of the arc-shaped plastic part 100 can be processed by the lifter assembly, the side core assemblies 700 are distributed on two sides of each convex core 331a, and the buckle cavity 120 of the arc-shaped plastic part 100 is processed and formed. The circular arc plastic part 100 with the inverse buckle 110 and the buckle cavity 120 can be formed by matching the parts between the two lower molding grooves 3310 and the fixed mold core 230. The die component has reasonable design, compact structure and space saving. In addition, aiming at the problem that complex workpieces are not easy to demold, when the inner slide mechanism 500 is used for demolding, the inner slide mechanism 500 moves towards the direction in the slide through hole 331c, the two inclined ejection assemblies are actually structures for clamping movable parts of the inner slide mechanism 500 between the two, after the inner slide mechanism 500 moves, the inclined ejection assemblies move to be separated from the back-off 110 and do not tightly abut against the back-off 110 any more, so that interference with the back-off 110 is avoided, then the inclined ejection assemblies and the ejector pins 413 are ejected by the ejector plates 314 which are ejected together, the molded arc plastic part 100 is ejected and demolded, and demolding is convenient without interference. Is specially designed for the arc plastic part 100 with a complicated structure, and even if the reverse buckle 110 is produced, the normal demoulding is not influenced.
As shown in fig. 3, the movable die holder 310 includes a movable die base plate 311, movable die support plates 312 vertically connected to the movable die base plate 311 and arranged at intervals, and a mounting plate 313 arranged between the two movable die support plates 312, the upper portion of the movable die support plate 312 is connected to the movable die plate 320, a mounting cavity for accommodating the ejector plate 314 is formed between the two movable die support plates 312, and the upper portion of the ejector plate 314 is connected to the mounting plate 313. The movable mold bottom plate 311 is provided with a ejector rod cavity, when the ejector rod of the injection molding machine penetrates through the ejector rod cavity to jack the ejector plate 314, the inclined ejector component and the ejector pin 413 are matched together to eject the arc plastic part 100 out of the mold.
As shown in fig. 7, 8 and 9, the lifter assembly includes two lifter mechanisms 400 arranged at intervals, the lifter mechanism 400 includes a lifter seat 411 having one end connected to the mounting plate 313 and a lifter 412 slidably connected to the other end of the lifter seat 411, and the two lifters 412 distributed on the same side of the outer convex core 331a are arranged in a "v" shape. The advantage of this arrangement is that after the two slanted ejecting portions 412 pass through the slanted ejecting through opening 331b, the inner slide mechanism 500 is located between the two slanted ejecting portions 412 to support the two slanted ejecting portions 412 to form the inverted buckle 110 of the circular arc plastic part 100. After the inner slide mechanism 500 moves, the two movable inclined tops 412 move close to each other, the reverse buckle and the inclined tops 412 are not tightly abutted any more, the product can be smoothly ejected and demolded in the state, the inclined tops 412 cannot interfere with the reverse buckle 110, and the injection molding part with a complex structure can be easily demolded on the premise of not damaging the processed product.
As shown in fig. 7 and 8, the pitched roof 412 includes a pitched roof 412 support connected with the pitched roof base 411 and a pitched roof main body 4121 fixedly installed at the upper end of the pitched roof support 4120, and the pitched roof main body 4121 includes a horizontal surface 4121a perpendicular to the pitched roof support 4120, a pitched roof arc surface 4121b connected with one end of the horizontal surface 4121a, an inclined surface 4121c connected with one end of the pitched roof arc surface 4121b, a plane 4121d connected with one end of the inclined surface 4121c, a rounded corner portion 4121e connected with one end of the plane 4121d, and a vertical surface 4121f connected with the rounded corner portion 4121e at one end and the pitched roof support 4120 at the other end. The shape of the slanted ejecting opening 331b is adapted to the shape of the slanted ejecting main body 4121, and an enclosed abutting portion 331e is formed after the two slanted ejecting openings 331b are communicated with the slide opening 331 c. The first end of the abutting portion 331e abuts against one side wall of one of the pitched roof main bodies 4121, the second end of the abutting portion 331e abuts against one side wall of the other pitched roof main body 4121, the third end of the abutting portion 331e abuts against the inner slide mechanism 500, and the outer surface of the abutting portion 331e is flush with the pitched roof arc surface 4121b of the two pitched roof main bodies 4121 and the outer surface of the inner slide mechanism 500. So that the outer surface of the injection molded product is smooth, burrs are reduced, and the yield is improved.
The outer walls of the two sides of the oblique top arc surface 4121b are uniformly distributed with a plurality of grain grooves 4121g, the grain grooves 4121g are distributed along one end and the other end of the oblique top arc surface 4121b, and grains 111 are formed in the corresponding positions of the inner wall of the inverted buckle 110 of the formed arc plastic part 100.
As shown in fig. 10, the inner slide mechanism 500 includes a driving rod 510 connected to the top end plate 210 and extending from the fixed mold plate 220, a set of slide rails disposed on the bottom surface of the movable mold core 330, a sliding block 530 slidably connected to the set of slide rails, and a vertical block 540 vertically connected to the sliding block 530 and having an outer protrusion 541, the driving rod 510 has an inclined section exposed outside the fixed mold plate 220, and as shown in fig. 9, an inclined cavity 531 is formed through the sliding block 530 at a position corresponding to the sliding block 530. The slide rail set is composed of two slide rails 520 arranged at intervals, a slide channel is formed between the two slide rails 520, the slide block 530 is respectively connected with the two slide rails 520 in a sliding manner, the slide block 530 can move back and forth along the slide channel, and the outer convex portion 541 is installed in the slide channel opening 331c and abuts against the abutting portion 331e. When the mold is removed, the outer convex portion 541 moves toward the direction inside the slide through hole 331c, the left and right sides of the outer convex portion 541 each have an L-shaped connecting surface, and the two L-shaped connecting surfaces are each in one-to-one correspondence with the slanted ejecting main bodies 4121 on both sides of the abutting portion 331e. When the mold is closed, the driving rod 510 is inserted into the inclined cavity 531 to drive the sliding block 530 to move in the direction out of the slide through hole 331c, and then the outer surface of the outer protrusion 541 is made flush with the inclined top arc surface 4121b of the inclined top main body 4121, and when the mold assembly 200 is separated from the movable mold assembly 300, the driving rod 510 drives the sliding block 530 to move in the direction inside the slide through hole 331 c.
The movable mold core 330 is distributed with four inward recessed connecting grooves, every two connecting grooves are distributed on two sides of the outward protruding mold core 331a respectively, each connecting groove is internally provided with an embedded block 600 positioned above the sliding block 530, the embedded block 600 is partially positioned inside the lower convex part 331, and a limiting groove 610 used for accommodating the vertical block 540 is arranged at the corresponding position of the embedded block 600. The limiting groove 610 is used for limiting the moving distance when the sliding block 530 moves to drive the outward protrusion 541 to move outwards.
As shown in fig. 11, the limiting groove 610 is an inverted "U" shaped structure, and is adapted to the shape of the disposal block.
The side core assembly 700 is coupled to a portion of the insert block 600 exposed outside the lower protrusion 331, and the side core assembly 700 includes a first side core 710 and second side cores 720 respectively disposed at both sides of the first side core 710. When the mold is closed, the first side core 710 abuts against the lower end face of the outer protrusion 541, the upper end face of the outer protrusion 541 abuts against the abutting portion 331e, the two second side cores 720 are fixedly connected to the upper end face of the embedded block 600 and have the same distance with the first side core 710, the first side core 710 and the second side core 720 are both arc-shaped structures, and when the mold cavity 120 can be formed, the product can be ejected without pulling a core during demolding, and the side core assembly 700 is easily separated from the product.
According to the injection mold, firstly, the convex core 331a is matched with the upper forming groove 2310 to produce an arc-shaped plastic part, the inclined top component penetrates through the convex core 331a and is designed in an injection molding cavity, the two inclined tops 412 enable the convex parts 541 to be abutted between the convex parts and the concave parts, the back-off 110 can be smoothly processed, the design is compact and reasonable in layout, the mold design space is saved, and the side core component 700 is used for forming the buckling cavity 120, so that the purpose of processing complex workpieces is achieved, and the effect of saving the mold design space is achieved. Secondly, after the outer convex portion 541 moves towards the direction inside the slide through hole 331c, the lifter main body 4121 with two sides moving obliquely moves to be separated from the inverted buckle 110, the lifter 412 and the ejector 413 below the product smoothly lift the arc plastic part 100 out of the mold, and the side core assemblies 700 at two sides are in the injection molding cavity after being matched with the mold, and the distribution positions are forced-releasing positions convenient for demolding, so as to solve the problem of inconvenient demolding of injection molding products with complex structures.
The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a production circular arc is moulded piece and is used injection mold which characterized in that: the injection molding device comprises a fixed die assembly provided with an injection molding runner, a movable die assembly which can be spliced with the fixed die assembly and is arranged below the fixed die assembly, and an ejection assembly arranged in the movable die assembly;
the fixed die assembly comprises a top end plate, a fixed die plate and a fixed die core, wherein the top end plate is provided with a glue injection hole at the top end, the fixed die plate is arranged below the top end plate and is provided with an upper mounting groove, the fixed die core is arranged in the upper mounting groove and is provided with an arc-shaped upper cavity which is sunken towards the top end plate, and two arc-shaped upper forming grooves which are in the same direction as the sunken direction of the upper cavity are arranged in the upper cavity at intervals;
the movable mould component comprises a movable mould seat, a movable mould plate which is arranged above the movable mould seat and is provided with a lower mounting groove and a movable mould core which is arranged in the lower mounting groove, the movable mould core is provided with a lower convex part which protrudes towards the direction of the fixed mould core and is matched with the upper concave cavity, the lower convex part is provided with two lower forming groove groups, each lower forming groove group is formed by arranging two lower forming grooves at intervals, a convex mould core is formed between the two lower forming grooves, and when the lower forming grooves and the upper forming grooves are spliced, an injection mould cavity communicated with the injection moulding runner is formed; the two sides of each outer convex mold core are respectively provided with an opening group, each opening group comprises two oblique top openings which are distributed at intervals and a line position opening which is arranged between the two oblique top openings, the two sides of the line position opening are respectively communicated with the two oblique top openings, and the middle section of each outer convex mold core is also provided with a thimble opening;
the ejection assembly comprises two inclined ejection assemblies and ejector pins, the two inclined ejection assemblies penetrate through the inclined ejection openings respectively to be used for forming the back-off, the ejector pins penetrate through the ejector pin openings, an inner slide mechanism penetrating through the slide openings is arranged on one side of each inclined ejection assembly, a side core assembly is arranged below each inner slide mechanism, part of the side core assembly abuts against the inner slide mechanism to be used for forming the buckling cavity, when demolding is conducted, the inner slide mechanism moves towards the inner direction of the slide openings, the inclined ejection assemblies and the ejector pins are ejected by ejector plates arranged in the movable die holders, the inclined ejection assemblies are separated from the circular arc plastic parts, and therefore the circular arc plastic parts formed by machining are ejected.
2. The injection mold for producing the arc-shaped plastic part according to claim 1, wherein: the movable mould base comprises a movable mould base plate, movable mould supporting plates and mounting plates, the movable mould supporting plates are vertically connected to the movable mould base plate and are arranged at intervals, the mounting plates are arranged between the two movable mould supporting plates, the upper portions of the movable mould supporting plates are connected with the movable mould plate, a mounting cavity used for containing the ejector plate is formed between the two movable mould supporting plates, and the upper portions of the ejector plate are connected with the mounting plates.
3. The injection mold for producing the arc-shaped plastic part as claimed in claim 2, wherein: the oblique top subassembly includes two oblique top mechanisms that the interval was arranged, oblique top mechanism include one end with oblique footstock that the mounting panel is connected and with oblique footstock other end sliding connection's oblique top, and distribute in evagination core is with two of one side oblique top is "eight" style of calligraphy and arranges.
4. The injection mold for producing the arc-shaped plastic part as claimed in claim 3, wherein: the oblique top include with the oblique top that the oblique footstock is connected support and set firmly in the oblique top main part of the upper end that the oblique top supported, the oblique top main part include a perpendicular to the horizontal plane that the oblique top supported, with the oblique top arc surface that horizontal plane one end is connected, with the inclined plane that oblique top arc surface one end is connected, with the plane that inclined plane one end is connected, with fillet portion and one end that plane one end is connected with fillet portion connect and the other end with the perpendicular that the oblique top was supported and is connected, cloth is equallyd divide to the both sides outer wall of oblique top arc surface has a plurality of lines groove, line groove edge the one end of oblique top arc surface is arranged along the other end.
5. The injection mold for producing the arc-shaped plastic part as claimed in claim 4, wherein: the shape of pushing up the opening to one side with push up shape looks adaptation to one side, two to one side the opening with carry and be formed with an abutting portion including encircleing behind the position opening intercommunication, the first end of abutting portion with one of them one side lateral wall of pushing up the main part to one side offsets, the second end of abutting portion with another push up main part one side lateral wall to one side offsets, and the third end of abutting portion with interior position mechanism offsets, just the surface and two of abutting portion push up the oblique circular arc surface of main part to one side and the surface parallel and level of interior position mechanism of carrying.
6. The injection mold for producing the arc-shaped plastic part as claimed in claim 5, wherein: interior slide mechanism include with the top end board is connected and is followed actuating lever that stretches out in the fixed die plate, locate the slide rail group of movable mould core bottom surface, with slide rail group sliding connection's sliding block and with sliding block vertical connection has the perpendicular piece of an outer convex part, the actuating lever has one and exposes the slope section outside the fixed die plate, sliding block corresponds position department and has seted up the skew chamber that runs through the sliding block, slide rail group comprises the slide rail of two intervals arrangements, two form between the slide rail and go a position passageway, the sliding block respectively with two slide rail sliding connection, just the sliding block can be followed go a position passageway round trip movement, outer convex part install in go a position in the passageway and with butt portion counterbalance, when the drawing of patterns, outer convex part orientation go a position in the passageway and remove, the outer convex part left and right sides has an L type respectively and connects the face, two L type is connected the face respectively the one-to-one with be located the oblique top main part looks butt of butt both sides.
7. The injection mold for producing the arc-shaped plastic part as claimed in claim 6, wherein: the movable mold core is provided with four inwards-sunken connecting grooves, every two connecting grooves are respectively distributed on two sides of the outwards-protruded mold core, each connecting groove is internally provided with an embedded block positioned above the sliding block, the embedded block is partially positioned inside the lower convex part, and a limiting groove used for containing the vertical block is arranged at the corresponding position of the embedded block.
8. The injection mold for producing the arc-shaped plastic part according to claim 7, wherein: the limiting groove is of an inverted U-shaped structure.
9. The injection mold for producing the arc-shaped plastic part according to claim 7, wherein: the part of the embedded block exposed out of the lower convex part is connected with the side core assembly, the side core assembly comprises a first side core and second side cores respectively arranged on two sides of the first side core, when the die is closed, the first side core is abutted against the lower end surface of the outer convex part, and the upper end surface of the outer convex part is abutted against the abutting part.
10. The injection mold for producing the arc-shaped plastic part according to claim 9, wherein: and the two second side cores are fixedly connected to the upper end surface of the embedded block and have the same distance with the first side cores.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222309272.2U CN217916556U (en) | 2022-08-30 | 2022-08-30 | Injection mold for producing arc plastic part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222309272.2U CN217916556U (en) | 2022-08-30 | 2022-08-30 | Injection mold for producing arc plastic part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119388683A (en) * | 2024-11-29 | 2025-02-07 | 宁波德科精密模塑有限公司 | Helmet cover inner support die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119388683A (en) * | 2024-11-29 | 2025-02-07 | 宁波德科精密模塑有限公司 | Helmet cover inner support die |
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Address after: No. 91 and 104 Rongsheng Road, Changzhou Street, Rongchang District, Chongqing, 404100 Patentee after: Chongqing Meitai Plastic Co.,Ltd. Address before: No. 91, Rongsheng Road, Changzhou Street, Rongchang District, Chongqing 404100 Patentee before: CHONGQING MEITAI PLASTIC CO.,LTD. |