Injection mold for cardiac pacemaker plastic support

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold for a cardiac pacemaker plastic support, which comprises an injection mold for molding the cardiac pacemaker plastic support; the cardiac pacemaker plastic support comprises a first plastic support, a second plastic support, a third plastic support and a fourth plastic support. According to the injection mold for the cardiac pacemaker plastic bracket, the first injection molding station and the second injection molding station are arranged, and a first molding assembly of the first injection molding station assembly and a second molding assembly of the second injection molding station assembly can be replaced; when the inner diameters of a first plastic bracket, a second plastic bracket, a third plastic bracket and a fourth plastic bracket of the cardiac pacemaker plastic bracket are changed, a channel forming column, a first inner cavity forming column, a second inner cavity forming column and a third inner cavity forming column are respectively replaced, so that the inner diameters correspond to the required inner diameters, and a whole set of profiling injection molding mold does not need to be replaced; and the range of injection mold processing conditions is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of injection mold of heart pacemaker plastic support. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size, injection molding is a processing method used when mass-producing parts, specifically refers to the material heated and melted is injected into mold cavity by injection molding machine high pressure, after cooling solidification, get shaped product.

[0003] There is a kind of heart pacemaker plastic support currently including first plastic support, second plastic support, third plastic support and fourth plastic support, both sides of the fourth plastic support are equipped with locating surface.

[0004] Generally, the die core of conventional injection mold adopts relative profiling structure, when the inner diameter of first plastic support, second plastic support, third plastic support and fourth plastic support of heart pacemaker plastic support changes, the die core profiling structure inside die needs to be redesigned as a whole, and a set of matching profiling mold is replaced for injection molding, the range of applicable processing conditions of die is small. INVENTION CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides an injection mold for heart pacemaker plastic support, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical scheme: an injection mold for heart pacemaker plastic support, comprising: an injection mold for forming heart pacemaker plastic support;

[0007] The heart pacemaker plastic support includes first plastic support, second plastic support, third plastic support and fourth plastic support, both sides of the fourth plastic support are equipped with locating surface;

[0008] The injection mold includes first mold base and second mold base of opening and closing displacement, first injection station is equipped on the first mold base, second injection station is equipped on the second mold base, injection cavity is formed between the first injection station and second injection station, injection assembly is installed on the first mold base;

[0009] The first injection station includes first movable die core, second movable die core, third movable die core and fourth movable die core, the first movable die core, second movable die core, third movable die core and fourth movable die core are all installed on the first mold base, passage forming column is installed on the inner wall of the fourth movable die core;

[0010] The second injection molding station comprises a first positioning seat, a second positioning seat, a third positioning seat and a fourth positioning seat installed on the second mold base, and the positions of the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat correspond to the positions of the first movable mold core, the second movable mold core, the third movable mold core and the fourth movable mold core one by one, 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 mold base is symmetrically provided with a shell forming assembly.

[0011] Preferably, the first mold base comprises a top mold plate and a first installation mold plate, the first installation mold plate is installed at the bottom of the top mold plate, a plurality of first connecting grooves for installing the first movable mold core, the second movable mold core, the third movable mold core and the fourth movable mold core are formed in the first installation mold plate, and the end portions of the first movable mold core, the second movable mold core and the third movable mold core are provided with positioning grooves.

[0012] Preferably, the first installation mold plate is symmetrically provided with an installation groove, and the inside of the installation groove is provided with a limiting block.

[0013] Preferably, the second mold base comprises a bottom plate and a second installation mold plate, the top of the bottom plate is symmetrically provided with a support plate, the support plate is connected to the bottom of the second installation mold plate, and the top of the second installation mold plate is provided with a plurality of second connecting grooves for installing the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat.

[0014] Preferably, the shell forming assembly comprises a sliding seat, the surface of the sliding seat is respectively provided with a first shell forming block, a second shell forming block, a third shell forming block and a fourth shell forming block, the second installation mold plate is symmetrically provided with a sliding groove, the sliding seat is slidingly connected to the inner wall of the sliding groove, and the surface of the sliding seat is connected to the surface of the limiting block.

[0015] Preferably, the first mold base is provided with a flow guide block, the surface of the flow guide block is provided with a flow guide hole, a butt joint block is arranged between the second shell forming block and the third shell forming block, the surface of the butt joint block is connected to the surface of the flow guide block, the top of the second installation mold plate is provided with a main flow guide channel, the inner wall of the main flow guide channel is respectively provided with a plurality of branch flow guide channels, and the inner walls of the first positioning seat, the second positioning seat, the third positioning seat and the fourth positioning seat are respectively connected to the branch flow guide channels.

[0016] Preferably, the injection molding assembly comprises an injection molding ring and an injection molding pipe, the top of the top mold plate is provided with a fixing groove, the injection molding ring is installed in the inner wall of the fixing groove, the injection molding pipe is installed at the bottom of the inner wall of the fixing groove, and the bottom end of the injection molding pipe extends to the inside of the main flow guide channel through the installation hole.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The injection mold of the cardiac pacemaker plastic support, through setting first injection station and second injection station, the first forming assembly of first injection station assembly and second forming assembly of second injection station assembly can be replaced, when the inner diameter of first plastic support, second plastic support, third plastic support and fourth plastic support of the cardiac pacemaker plastic support changes, respectively replacing channel forming post, first inner cavity forming post, second inner cavity forming post and third inner cavity forming post, make it correspond with the required inner diameter, do not need to replace the whole set of profiling injection molding mold, improve the range of injection mold processing condition. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is first plastic support structure schematic diagram;

[0020] Figure 2 It is second plastic support structure schematic diagram;

[0021] Figure 3 It is third plastic support structure schematic diagram;

[0022] Figure 4 It is fourth plastic support structure schematic diagram;

[0023] Figure 5 It is the injection mold side view novel structure schematic diagram of the utility model;

[0024] Figure 6 It is the first installation template and first injection station structure schematic diagram of the utility model;

[0025] Figure 7 It is the first injection station exploded structure schematic diagram of the utility model;

[0026] Figure 8 It is the second installation template and second injection station structure schematic diagram of the utility model;

[0027] Figure 9 It is the second injection station exploded structure schematic diagram of the utility model;

[0028] Figure 10 It is the shell forming assembly exploded structure schematic diagram of the utility model;

[0029] Figure 11 It is the injection mold top view novel structure schematic diagram of the utility model.

[0030] In the figure: 101, first plastic support; 102, second plastic support; 103, third plastic support; 104, fourth plastic support; 2, first mold base; 21, top mold plate; 22, first installation mold plate; 3, second mold base; 31, bottom plate; 32, second installation mold plate; 33, support plate; 4, first injection molding station; 41, first movable mold core; 42, second movable mold core; 43, third movable mold core; 44, fourth movable mold core; 45, channel forming column; 5, second injection molding station; 51, first positioning seat; 52, second positioning seat; 53, third positioning seat; 54, fourth positioning seat; 55, first inner cavity forming column; 56, second inner cavity forming column; 57, third inner cavity forming column; 58, surface forming column; 6, injection molding assembly; 61, injection molding ring; 62, injection molding pipe; 7, shell forming assembly; 71, sliding seat; 72, first shell forming block; 73, second shell forming block; 74, third shell forming block; 75, fourth shell forming block; 8, first connecting groove; 9, positioning groove; 10, installation groove; 11, limiting embedded block; 12, second connecting groove; 13, flow guide block; 14, flow guide hole; 15, butt joint block; 16, main flow guide channel; 17, branch flow guide channel. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Please refer to Figures 1-11 An injection mold for a plastic support of a cardiac pacemaker comprises: an injection mold for forming the plastic support of the cardiac pacemaker;

[0033] Please refer to Figures 1-4 The plastic support of the cardiac pacemaker comprises a first plastic support 101, a second plastic support 102, a third plastic support 103, and a fourth plastic support 104, and the fourth plastic support 104 is provided with positioning surfaces on both sides;

[0034] The injection mold comprises a first mold base 2 and a second mold base 3 which are displaced when opened and closed, the first mold base 2 is provided with a first injection molding station 4, the second mold base 3 is provided with a second injection molding station 5, an injection cavity is formed between the first injection molding station 4 and the second injection molding station 5, and the first mold base 2 is provided with an injection molding assembly 6;

[0035] The first injection molding station 4 comprises a first movable mold core 41, a second movable mold core 42, a third movable mold core 43 and a fourth movable mold core 44, all of which are installed on the first mold base 2, and the inner wall of the fourth movable mold core 44 is provided with a channel forming column 45;

[0036] Please refer to Figures 5-11 The second injection molding station 5 comprises a first positioning seat 51, a second positioning seat 52, a third positioning seat 53 and a fourth positioning seat 54 installed on the second mold base 3, and the positions of the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54 correspond one-to-one with the 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, and 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 are respectively provided 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 provided with a shell forming assembly 7.

[0037] The first mold base 2 comprises a top mold plate 21 and a first installation mold plate 22 installed at the bottom of the top mold plate 21, and a plurality of first connecting grooves 8 for installing 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 formed in the first installation mold plate 22, and the end portions of the first movable mold core 41, the second movable mold core 42 and the third movable mold core 43 are provided with positioning grooves 9.

[0038] The first installation mold plate 22 is symmetrically provided with an installation groove 10, and the inside of the installation groove 10 is provided with a limiting block 11.

[0039] The second mold base 3 comprises a bottom plate 31 and a second installation mold plate 32, the top of the bottom plate 31 is symmetrically provided with a support plate 33, and the support plate 33 is connected to the bottom of the second installation mold plate 32, and a plurality of second connecting grooves 12 for installing the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54 are formed in the top of the second installation mold plate 32.

[0040] The shell forming assembly 7 comprises a sliding seat 71, and the surface of the sliding seat 71 is respectively provided with 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, the second installation mold plate 32 is symmetrically provided with a sliding groove, the sliding seat 71 is slidingly connected to the inner wall of the sliding groove, and the surface of the sliding seat 71 is connected to the surface of the limiting block 11.

[0041] The first mold base 2 is provided with a flow guide block 13, the surface of the flow guide block 13 is provided with a flow 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 flow guide block 13, the top of the second installation mold plate 32 is provided with a main flow guide channel 16, the inner wall of the main flow guide channel 16 is respectively provided with a plurality of branch flow guide channels 17, and the plurality of branch flow 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.

[0042] The injection molding assembly 6 comprises an injection molding ring mouth 61 and an injection molding pipe 62, the top of the top mold plate 21 is provided with a fixing groove, the injection molding ring mouth 61 is arranged on the inner wall of the fixing groove, and the injection molding pipe 62 is arranged at the bottom of the inner wall of the fixing groove and extends to the inside of the main flow guide channel 16 through the mounting hole.

[0043] 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 arranged in the first connecting groove 8 on the first installation mold plate 22, the channel forming column 45 is arranged in the fourth movable mold core 44, the assembly of the first injection molding station 4 is completed, 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 arranged in the first positioning seat 51, the second positioning seat 52, the third positioning seat 53 and the fourth positioning seat 54, the sliding seat 71 of the shell forming assembly 7 is arranged in the sliding groove, and the assembly of the second injection molding station 5 is completed, when the first mold base 2 and the second mold base 3 are closed, the injection molding cavity is formed between the first injection molding station 4 and the second injection molding station 5, the injection molding equipment is connected with the injection molding die through the injection molding ring mouth 61, 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 plastic support of the cardiac pacemaker change, the channel forming column 45, the first inner cavity forming column 55, the second inner cavity forming column 56 and the third inner cavity forming column 57 are replaced respectively, so that they correspond to the required inner diameters, the whole set of profiling injection molding die does not need to be replaced, and the range of injection molding die processing conditions is improved.

[0044] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a plastic stent for a cardiac pacemaker, characterized in that, include: Injection molds used for molding plastic stents for cardiac pacemakers; The cardiac pacemaker plastic stent includes a first plastic stent (101), a second plastic stent (102), a third plastic stent (103) and a fourth plastic stent (104), and the fourth plastic stent (104) has positioning surfaces on both sides. The injection mold includes a first mold base (2) and a second mold base (3) for opening and closing displacement. The first mold base (2) is provided with a first injection station (4), and the second mold base (3) is provided with a second injection station (5). An injection cavity is formed between the first injection station (4) and the second injection station (5). An injection assembly (6) is installed on the first mold base (2). The first injection molding station (4) includes a first movable mold core (41), a second movable mold core (42), a third movable mold core (43) and a fourth movable mold core (44). 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 all installed on the first mold base (2). The inner wall of the fourth movable mold core (44) is equipped with a channel forming column (45). 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) installed on the second mold base (3). The positions of the first positioning seat (51), the second positioning seat (52), the third positioning seat (53) and the fourth positioning seat (54) correspond one-to-one with the 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). 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) are respectively equipped 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). The shell forming assembly (7) is symmetrically installed on the second mold base (3).

2. The injection mold for a plastic stent for a cardiac pacemaker according to claim 1, characterized in that, The first mold base (2) includes a top template (21) and a first mounting template (22). The first mounting template (22) is installed at the bottom of the top template (21). The first mounting template (22) has multiple first connecting grooves (8) for installing 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). The ends of the first movable mold core (41), the second movable mold core (42) and the third movable mold core (43) are all provided with positioning grooves (9).

3. The injection mold for a cardiac pacemaker plastic stent according to claim 2, characterized in that, The first installation template (22) is symmetrically provided with installation slots (10), and the installation slots (10) are provided with limit inserts (11).

4. The injection mold for a plastic stent for a cardiac pacemaker according to claim 3, characterized in that, The second mold base (3) includes a base plate (31) and a second mounting template (32). The top of the base plate (31) is symmetrically provided with a support plate (33), and the support plate (33) is connected to the bottom of the second mounting template (32). The top of the second mounting template (32) has multiple second connecting grooves (12) for installing the first positioning seat (51), the second positioning seat (52), the third positioning seat (53) and the fourth positioning seat (54).

5. The injection mold for a plastic stent for a cardiac pacemaker according to claim 4, characterized in that, The outer shell forming assembly (7) includes a sliding seat (71), on the surface of which a first outer shell forming block (72), a second outer shell forming block (73), a third outer shell forming block (74) and a fourth outer shell forming block (75) are respectively installed. The second mounting template (32) has symmetrically opened grooves. The sliding seat (71) is slidably connected to the inner wall of the groove. The surface of the sliding seat (71) is connected to the surface of the limiting insert (11).

6. The injection mold for a cardiac pacemaker plastic stent according to claim 5, characterized in that, A flow guide block (13) is provided on the first mold base (2), and a flow guide hole (14) is provided on the surface of the flow guide block (13). A docking block (15) is provided between the second shell forming block (73) and the third shell forming block (74). The surface of the docking block (15) is connected to the surface of the flow guide block (13). A main flow channel (16) is provided on the top of the second mounting template (32). A plurality of sub-flow guide channels (17) are provided on the inner wall of the main flow channel (16). The plurality of sub-flow guide channels (17) are connected to 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) respectively.

7. The injection mold for a plastic stent for a cardiac pacemaker according to claim 2, characterized in that, The injection molding assembly (6) includes an injection ring (61) and an injection tube (62). A fixing groove is provided on the top of the top template (21). The injection ring (61) is installed on the inner wall of the fixing groove. The injection tube (62) is installed at the bottom of the inner wall of the fixing groove, and the bottom end of the injection tube (62) extends through the mounting hole into the interior of the main flow channel (16).

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