Injection mold of cardiac pacemaker plastic support
Technical Field
The utility model relates to the technical field of injection molds, in particular to an injection mold of a plastic bracket of a cardiac pacemaker.
Background
The injection mold is a tool for producing plastic products, and also a tool for endowing the plastic products with complete structures and accurate dimensions, the injection molding is a processing method used in mass production of parts, and specifically refers to a method for injecting a heated and melted material into a mold cavity by an injection molding machine under high pressure, and obtaining a formed product after cooling and solidifying.
There is a cardiac pacemaker plastic support at present including first plastic support, second plastic support, third plastic support and fourth plastic support, the both sides of fourth plastic support all are equipped with the locating surface.
Under the general condition, the mould core of the traditional injection mould adopts a relatively profiling structure, when the inner diameters of a first plastic support, a second plastic support, a third plastic support and a fourth plastic support of a heart pacemaker plastic support are changed, the whole design of the profiling structure of the mould core inside the mould is required to be redesigned, a matched set of profiling mould is replaced for injection moulding, and the range of the applicable processing condition of the mould is small.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides an injection mold of a plastic bracket of a cardiac pacemaker, which solves the problems mentioned in the background.
The utility model provides the following technical scheme that the injection mold of the plastic bracket of the cardiac pacemaker comprises an injection mold for molding the plastic bracket of the cardiac pacemaker;
The cardiac pacemaker plastic support comprises a first plastic support, a second plastic support, a third plastic support and a fourth plastic support, wherein positioning surfaces are arranged on two sides of the fourth plastic support;
The injection mold comprises a first mold base and a second mold base which are in open-close displacement, a first injection molding station is arranged on the first mold base, a second injection molding station is arranged on the second mold base, an injection molding cavity is formed between the first injection molding station and the second injection molding station, and an injection molding assembly is arranged on the first mold base;
The first injection molding station comprises a first movable die core, a second movable die core, a third movable die core and a fourth movable die core, wherein the first movable die core, the second movable die core, the third movable die core and the fourth movable die core are all arranged on a first die holder, and a channel forming column is arranged on the inner wall of the fourth movable die core;
The second injection molding station comprises a first positioning seat, a second positioning seat, a third positioning seat and a fourth positioning seat which are arranged on a second die holder, the positions of the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat are in one-to-one correspondence with the positions of a first movable die core, a second movable die core, a third movable die core and a fourth movable die core, and the inner walls of the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat are respectively provided with a first inner cavity forming column, a second inner cavity forming column, a third inner cavity forming column and a surface forming column, and the second die holder is symmetrically provided with a shell forming assembly.
Preferably, the first die holder comprises a top die plate and a first installation die plate, the first installation die plate is installed at the bottom of the top die plate, a plurality of first connecting grooves for installing a first movable die core, a second movable die core, a third movable die core and a fourth movable die core are formed in the first installation die plate, and positioning grooves are formed in the end parts of the first movable die core, the second movable die core and the third movable die core.
Preferably, the first installation template is symmetrically provided with installation grooves, and limiting embedded blocks are arranged in the installation grooves.
Preferably, the second die holder comprises a bottom plate and a second mounting template, the top of the bottom plate is symmetrically provided with a supporting plate, the supporting plate is connected to the bottom of the second mounting template, and a plurality of second connecting grooves for mounting the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat are formed in the top of the second mounting template.
Preferably, the shell molding assembly comprises a sliding seat, wherein the surface of the sliding seat is provided with a first shell molding block, a second shell molding block, a third shell molding block and a fourth shell molding block respectively, the second mounting template is symmetrically provided with a sliding groove, the sliding seat is in sliding connection with the inner wall of the sliding groove, and the surface of the sliding seat is connected with the surface of the limiting embedded block.
Preferably, a guide block is arranged on the first die holder, a guide hole is arranged on the surface of the guide block, a butt joint block is arranged between the second housing forming block and the third housing forming block, the surface of the butt joint block is connected with the surface of the guide block, a leading runner is arranged at the top of the second mounting die plate, a plurality of sub-guide runners are respectively arranged on the inner wall of the leading runner, and the sub-guide runners are respectively connected with the inner walls of the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat.
Preferably, the subassembly of moulding plastics includes the ring mouth of moulding plastics and moulds plastics the pipe, the fixed slot has been seted up at the top of cope match-plate pattern, the inner wall at the fixed slot is installed to the ring mouth of moulding plastics, the bottom at the fixed slot inner wall is installed to the pipe of moulding plastics, and the bottom of the pipe of moulding plastics passes the mounting hole and extends to the inside of leading runner.
Compared with the prior art, the utility model has the following beneficial effects:
This injection mold of cardiac pacemaker plastic support through setting up first station and the second station of moulding plastics, and the first shaping subassembly of first station subassembly of moulding plastics and the second shaping subassembly of second station subassembly of moulding plastics can be replaced, and when the first plastic support of cardiac pacemaker plastic support, second plastic support, third plastic support and fourth plastic support internal diameter change, the passageway shaping post of replacement respectively, first inner chamber shaping post, second inner chamber shaping post and third inner chamber shaping post make it corresponding with required internal diameter, need not change whole profile modeling injection mold, improve the scope of injection mold processing condition.
Drawings
FIG. 1 is a schematic view of a first plastic bracket;
FIG. 2 is a schematic view of a second plastic bracket;
FIG. 3 is a schematic view of a third plastic bracket;
FIG. 4 is a schematic view of a fourth plastic bracket;
FIG. 5 is a schematic diagram of a novel side view structure of the injection mold;
FIG. 6 is a schematic view of a first mounting die plate and a first injection station of the present utility model;
FIG. 7 is an exploded view of a first injection station according to the present utility model;
FIG. 8 is a schematic view of a second mounting die plate and a second injection station of the present utility model;
FIG. 9 is an exploded view of a second injection station of the present utility model;
FIG. 10 is an exploded view of the housing forming assembly of the present utility model;
Fig. 11 is a schematic diagram of a top view of the injection mold.
101, A first plastic bracket; 102, a second plastic bracket; 103, a third plastic bracket; 104, a fourth plastic bracket, 2, a first die holder, 21, a top die plate, 22, a first mounting die plate, 3, a second die holder, 31, a bottom plate, 32, a second mounting die plate, 33, a supporting plate, 4, a first injection molding station, 41, a first movable die core, 42, a second movable die core, 43, a third movable die core, 44, a fourth movable die core, 45, a channel molding column, 5, a second injection molding station, 51, a first positioning seat, 52, a second positioning seat, 53, a third positioning seat, 54, a fourth positioning seat, 55, a first inner cavity molding column, 56, a second inner cavity molding column, 57, a third inner cavity molding column, 58, a face molding column, 6, an injection molding assembly, 61, an injection molding ring opening, 62, an injection molding pipe, 7, a housing molding assembly, 71, a sliding seat, 72, a first housing molding block, 73, a second housing molding block, 74, a third housing molding block, 75, a fourth housing molding block, 8, a first connecting groove, 9, a positioning groove, 10, a mounting block, 11, a second housing block, a guide groove, and a guide rail, respectively, and a guide rail.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to FIGS. 1-11, an injection mold for a plastic stent of a cardiac pacemaker comprises an injection mold for molding the plastic stent of the cardiac pacemaker;
Referring to fig. 1-4, the cardiac pacemaker plastic bracket includes a first plastic bracket 101, a second plastic bracket 102, a third plastic bracket 103 and a fourth plastic bracket 104, wherein both sides of the fourth plastic bracket 104 are provided with positioning surfaces;
The injection mold comprises a first mold base 2 and a second mold base 3 which are in open-close displacement, a first injection molding station 4 is arranged on the first mold base 2, a second injection molding station 5 is arranged on the second mold base 3, an injection molding cavity is formed between the first injection molding station 4 and the second injection molding station 5, and an injection molding assembly 6 is arranged on the first mold base 2;
The first injection molding station 4 comprises a first movable die core 41, a second movable die core 42, a third movable die core 43 and a fourth movable die core 44, wherein the first movable die core 41, the second movable die core 42, the third movable die core 43 and the fourth movable die core 44 are all arranged on the first die holder 2, and a channel forming column 45 is arranged on the inner wall of the fourth movable die core 44;
Referring to fig. 5 to 11, the second injection molding station 5 includes a first positioning seat 51, a second positioning seat 52, a third positioning seat 53 and a fourth positioning seat 54 mounted on the second mold base 3, wherein positions of the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54 are in one-to-one correspondence with positions of the first movable mold core 41, the second movable mold core 42, the third movable mold core 43 and the fourth movable mold core 44, inner walls of the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54 are respectively mounted with a first inner cavity forming column 55, a second inner cavity forming column 56, a third inner cavity forming column 57 and a surface forming column 58, and the second mold base 3 is symmetrically mounted with the housing forming assembly 7.
The first die holder 2 comprises a top die plate 21 and a first installation die plate 22, the first installation die plate 22 is installed at the bottom of the top die plate 21, a plurality of first connecting grooves 8 for installing a first movable die core 41, a second movable die core 42, a third movable die core 43 and a fourth movable die core 44 are formed in the first installation die plate 22, and positioning grooves 9 are formed in the end portions of the first movable die core 41, the second movable die core 42 and the third movable die core 43.
The first installation template 22 is symmetrically provided with the installation groove 10, and the inside of the installation groove 10 is provided with the limit insert 11.
The second die holder 3 comprises a bottom plate 31 and a second mounting template 32, the top of the bottom plate 31 is symmetrically provided with a supporting plate 33, the supporting plate 33 is connected to the bottom of the second mounting template 32, and a plurality of second connecting grooves 12 for mounting a first positioning seat 51, a second positioning seat 52, a third positioning seat 53 and a fourth positioning seat 54 are formed in the top of the second mounting template 32.
The shell forming assembly 7 comprises a sliding seat 71, wherein a first shell forming block 72, a second shell forming block 73, a third shell forming block 74 and a fourth shell forming block 75 are respectively arranged on the surface of the sliding seat 71, sliding grooves are symmetrically formed in the second mounting template 32, the sliding seat 71 is slidably connected to the inner wall of each sliding groove, and the surface of the sliding seat 71 is connected with the surface of the limiting insert 11.
The first die holder 2 is provided with a guide block 13, the surface of the guide block 13 is provided with a guide hole 14, a butt joint block 15 is arranged between the second shell forming block 73 and the third shell forming block 74, the surface of the butt joint block 15 is connected with the surface of the guide block 13, the top of the second mounting template 32 is provided with a main guide channel 16, the inner wall of the main guide channel 16 is respectively provided with a plurality of sub-guide channels 17, and the sub-guide channels 17 are respectively connected with the inner walls of the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54.
The injection molding assembly 6 comprises an injection molding ring opening 61 and an injection molding pipe 62, a fixing groove is formed in the top of the top template 21, the injection molding ring opening 61 is arranged on the inner wall of the fixing groove, the injection molding pipe 62 is arranged at the bottom of the inner wall of the fixing groove, and the bottom end of the injection molding pipe 62 penetrates through the mounting hole to extend to the inside of the main runner 16.
The first movable mold core 41, the second movable mold core 42, the third movable mold core 43 and the fourth movable mold core 44 are respectively installed in the first connecting groove 8 on the first installation template 22, the channel forming column 45 is installed in the fourth movable mold core 44 to complete the assembly of the first injection molding station 4, the first inner cavity forming column 55, the second inner cavity forming column 56, the third inner cavity forming column 57 and the surface forming column 58 are respectively installed in the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54, and in the second connecting groove 12 on the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the second installation template 32 respectively, the sliding seat 71 of the shell molding assembly 7 is installed in the sliding groove to complete the assembly of the second injection molding station 5, when the first die holder 2 and the second die holder 3 are closed, an injection molding cavity is formed between the first injection molding station 4 and the second injection molding station 5, the injection molding equipment is in butt joint with the injection molding die through the injection molding ring opening 61, and when the inner diameters of the first plastic support 101, the second plastic support 102, the third plastic support 103 and the fourth plastic support 104 of the pacemaker plastic support are changed, the channel molding column 45, the first inner cavity molding column 55, the second inner cavity molding column 56 and the third inner cavity molding column 57 are respectively replaced to enable the channel molding column, the first inner cavity molding column, the second inner cavity molding column and the third inner cavity molding column to correspond to the required inner diameters, the whole set of profiling molding die is not required to be replaced, and the range of processing conditions of the injection molding die is improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.