Worm injection mold with multi-group rotary demolding function

Abstract

The utility model discloses a worm injection mold with multiple groups of rotary demolding, which is provided with an upper fixing plate assembled on an injection molding machine, and the lower surface of the upper fixing plate is provided with an upper mold plate; comprising a fixing rod, the fixing rod is installed on the rear side of the outer surface of the upper die plate, a telescopic assembly is installed on the side of the rear end of the fixing rod and connected with a telescopic piece through the outer surface of a telescopic rod, meanwhile, a rack is installed on the inner surface of the telescopic piece in a limiting and nesting mode, and a limiting piece is connected to the outer surface of the rack. According to the worm injection mold with the multi-set rotary demolding function, the fixing rod convenient to position and assemble is arranged, supporting and interval control are achieved through the stable telescopic assembly, the telescopic assembly is effectively matched with the limiting piece through clamping of the telescopic piece and the rack, the stable rack is meshed with the linkage gear, and therefore the worm injection mold is more stable and more stable. And through the use of a linkage gear and a change gear, the rotating speed of the positioning gear in use is controlled, so that the demolding speed of the worm body is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of worm injection molds, in particular to a worm injection mold with multiple groups of rotating demoulding. Background Art

[0002] The plastic worm produced in the worm injection mold has a wide range of applications in modern industry, and the plastic worm is usually used in pairs with a turbine to transmit the movement of components between two staggered shafts. The worm transmission is equivalent to a spiral transmission, which is a multi-tooth meshing transmission. It has the stability of anti-reversal and disengagement during transmission, and the noise is very small during transmission. In addition, when producing plastic worms, most of them need to be injection molded with the help of molds, but there are still some problems in the use of existing worms.

[0003] In the prior art, the authorization disclosure (announcement) number: CN212554843U states that “a worm injection mold” includes a movable mold core and a static mold core. The static mold core is provided with two worm molding stations that can alternately change positions with each other. The movable mold core is provided with injection molding stations and demoulding mechanisms corresponding to the two worm molding stations. When the mold is closed for the first time, the injection molding station performs injection molding toward one of the worm molding stations. When the mold is opened, the first driver drives the two worm molding stations to change positions. When the mold is closed again, the injection molding station performs injection molding toward the other worm molding station. At the same time as the injection molding, the demoulding mechanism drives the injection-molded worm to rotate and demould. In this way, the worm molding and demoulding process are integrated in each mold closing process.

[0004] During the operation of the above-mentioned device, automatic demoulding replaces the existing manual demoulding, which reduces the labor intensity of operators and improves production efficiency. However, when using it, it is inconvenient to demould multiple groups at the same time, and it is easy to cause low demoulding smoothness, affecting the molding effect. Utility Model Content

[0005] The purpose of the utility model is to provide a worm injection mold with multiple groups of rotating demoulding to solve the problem proposed in the above background technology that it is inconvenient to use multiple groups for demoulding at the same time during use, and it is easy to cause low demoulding smoothness and affect the molding effect.

[0006] To achieve the above object, the utility model provides the following technical solution: a worm injection mold with multiple sets of rotary demoulding, provided with an upper fixing plate assembled on an injection molding machine, and an upper mold plate is installed on the lower surface of the upper fixing plate;

[0007] It includes: a fixed rod installed on the rear side of the outer surface of the upper template, and a telescopic assembly is installed on the rear end side of the fixed rod, and the telescopic assembly is connected to a telescopic part through the outer surface of the telescopic rod, and a rack is installed on the inner surface of the telescopic part in a limited nesting manner, and a limited part is connected to the outer surface of the rack, so that the limited part is stably installed on the side wall of the upper template;

[0008] The linkage gear is rotatably connected to the inner surface of the upper template, and the lower left side of the outer surface of the linkage gear is meshed with a rack, and the upper right side of the linkage gear is meshed with a speed gear, and the side edge of the outer surface of the speed gear is meshed with a positioning gear, and a positioning block is nested and installed on the upper side of the bearing assembled with the positioning gear;

[0009] The nesting piece one is limitedly installed on the inner surface of the positioning gear, and the inner surface of the nesting piece one is rotatably connected with a built-in rod, and the built-in rod is positioned and nested in the inner surface of the upper template, and the limit assembly of the built-in rod is assembled with the nesting rod, and at the same time, the inner surface limit assembly of the nesting rod is assembled with an upper insert, and a worm body is clamped and formed on the lower surface of the upper insert.

[0010] Preferably, the fixed rod is embedded in the rear side of the outer surface of the upper template, and the fixed rod forms a limited telescopic structure with the telescopic part through the telescopic assembly, and the telescopic part and the rack form a locking structure, while the rack forms a limited sliding structure with the upper template through the limiting part.

[0011] Through the above structure, it is convenient to stably control the rack on the telescopic assembly during use, and effectively provide a stable running and rotating process for the worm body during demoulding.

[0012] Preferably, the linkage gear and the upper template form a positioning rotation structure, and the upper template forms a linkage meshing rotation structure with the positioning gear through the rack through the linkage gear and the speed gear, and the positioning gear forms a positioning structure with the upper template through the bearing and the positioning block.

[0013] Through the above structure, a linkage setting can be effectively formed during use, thereby improving the linkage of the device operation, and in combination with the use of the speed change gear, the demoulding efficiency can be effectively improved.

[0014] Preferably, the nested part 1 forms a limiting snap-fit ​​structure through a ball and a positioning gear, and the nested part 1 and the built-in rod form a rotating structure, and the built-in rod and the upper template form a limiting nested structure, the built-in rod forms a limiting snap-fit ​​structure from outside to inside through the nested rod and the upper insert, and at the same time, the nested rod and the upper insert form a top molding structure with the worm body.

[0015] Through the above structure, the cooperation between the nested part 1 assembled by the ball positioning and the positioning gear during use can effectively prevent separation during rotation, and the rotation setting of the nested part 1 and the built-in rod can prevent the two from affecting each other during demoulding. The nested part 1 is demoulded by rotation, and the built-in rod is demoulded by telescopic movement following the upper template.

[0016] Preferably, the outer surface of the worm body is threadedly connected with a side insert, and the side insert is limitedly assembled on the lower side of the inner surface of the nesting piece, and the inner surface of the worm body is nested with a lower insert, and the outer surface of the worm body is clamped and installed with the lower insert, and the outer surface of the lower insert is nested and assembled with a positioning component;

[0017] The outer surface of the positioning component is installed with a nesting piece 2, and the outer surface of the nesting piece 2 is installed with a lower template, and the lower surface of the lower template is installed with a pad, and the pad can form a bottom support connection for the lower insert, the positioning component and the nesting piece 2.

[0018] Through the above structure, it can be rotated synchronously for demoulding at the thread when in use, and the cooperation of the assembled lower insert and the positioning component can effectively form the internal and bottom shape of the worm body, thereby forming a telescopic demoulding.

[0019] Preferably, the worm body and the side insert form a threaded rotation, and the side insert and the nesting piece 1 form a threaded extrusion structure, and the worm body and the lower insert form a built-in structure, the worm body and the positioning assembly form a bottom nesting molding structure, and the lower insert forms a limited nesting structure from the inside to the outside through the positioning assembly and the nesting piece 2, and the nesting piece 2 and the lower template form a built-in through structure.

[0020] Through the above structure, when the nested part is used, the rotation of the first one can stably control the assembled side insert to form a rotational fall-off, and after the rotational demoulding, the lower insert on the lower template can be stably controlled to form a demoulding process, thereby improving the demoulding distinction and the stability of use.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The worm injection mold with multiple groups of rotating demoulding is provided with a fixing rod for facilitating positioning and assembly, and a stable telescopic component is used for support and spacing control. The telescopic component is effectively matched with the limiter through the engagement of the telescopic member and the rack. The stable rack is meshed with the linkage gear, and the rotation speed of the positioning gear is controlled through the use of the linkage gear and the speed gear, thereby improving the demoulding speed of the worm body;

[0023] 2. The worm injection mold with multiple groups of rotating demolding is provided with a nesting piece 1 which is convenient for positioning and assembly. It can effectively form a limit for the nested rod assembled with the built-in rod and is very easy to use for heat preservation, and form a positioning nest for the upper insert in the nested rod, effectively mold and core-pull the top of the upper surface of the worm body, and cooperate with the side insert set for assembly. Through the positioning treatment of the nesting piece 1, the outer surface thread of the worm body is molded, and the built-in positioning component of the nesting piece 2 installed on the lower template effectively forms a positioning assembly for the lower insert, thereby molding the inner and lower sides of the worm body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the upper fixing plate of the utility model;

[0025] Figure 2 This is a semi-sectioned three-dimensional structural schematic diagram of the upper fixing plate of the utility model;

[0026] Figure 3 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the upper template of the utility model;

[0027] Figure 4 This is a semi-sectioned three-dimensional structural diagram of the positioning component of the utility model;

[0028] Figure 5 For this utility model Figure 4 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0029] In the figure: 1. upper fixed plate; 2. upper template; 3. fixed rod; 4. telescopic assembly; 5. telescopic part; 6. rack; 7. limiter; 8. linkage gear; 9. speed change gear; 10. positioning gear; 11. positioning block; 12. nesting part 1; 13. built-in rod; 14. nesting rod; 15. upper insert; 16. worm body; 17. side insert; 18. lower insert; 19. positioning assembly; 20. nesting part 2; 21. lower template; 22. pad. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-Figure 5 , the utility model provides a technical solution: a worm injection mold with multiple groups of rotary demoulding, provided with an upper fixing plate 1 assembled on an injection molding machine, and an upper template 2 is installed on the lower surface of the upper fixing plate 1;

[0032] It includes: a fixed rod 3, which is installed on the rear side of the outer surface of the upper template 2, and a telescopic component 4 is installed on the rear end side of the fixed rod 3, and the telescopic component 4 is connected to a telescopic member 5 through the outer surface of the telescopic rod, and a rack 6 is installed on the inner surface of the telescopic member 5, and a limiting member 7 is connected to the outer surface of the rack 6, so that the limiting member 7 is stably installed on the side wall of the upper template 2;

[0033] The linkage gear 8 is rotatably connected to the inner surface of the upper template 2, and the lower left side of the outer surface of the linkage gear 8 is meshed with the rack 6, and the upper right side of the linkage gear 8 is meshed with the speed change gear 9, and the side edge of the outer surface of the speed change gear 9 is meshed with the positioning gear 10, and a positioning block 11 is nested and installed on the upper side of the bearing assembled with the positioning gear 10;

[0034] The fixed rod 3 is embedded in the rear side of the outer surface of the upper template 2, and the fixed rod 3 forms a limited telescopic structure with the telescopic component 5 through the telescopic assembly 4, and the telescopic component 5 and the rack 6 form a snap-fit ​​structure, while the rack 6 forms a limited sliding structure with the upper template 2 through the limiting component 7.

[0035] The linkage gear 8 and the upper template 2 form a positioning rotation structure, and the upper template 2 forms a linkage meshing rotation structure with the positioning gear 10 through the rack 6, the linkage gear 8 and the speed gear 9, and the positioning gear 10 forms a positioning structure with the upper template 2 through the bearing and the positioning block 11.

[0036] The nesting piece 12 is limitedly installed on the inner surface of the positioning gear 10, and the inner surface of the nesting piece 12 is rotatably connected with the built-in rod 13, and the built-in rod 13 is positioned and nested on the inner surface of the upper template 2, and the built-in rod 13 is limitedly assembled with the nesting rod 14, and the inner surface of the nesting rod 14 is limitedly assembled with the upper insert 15, and the worm body 16 is clamped and formed on the lower surface of the upper insert 15.

[0037] The nested piece 12 forms a limited snap-fit ​​structure with the positioning gear 10 through the ball bearing, and the nested piece 12 and the built-in rod 13 form a rotating structure, and the built-in rod 13 and the upper template 2 form a limited nested structure, the built-in rod 13 forms a limited snap-fit ​​structure from outside to inside with the upper insert 15 through the nested rod 14, and at the same time, the nested rod 14 and the upper insert 15 form a top molding structure with the worm body 16.

[0038] When the worm body 16 is demoulded by injection molding, the built-in rod 13 can be effectively positioned by fixing and installing the upper fixing plate 1 and using the assembled upper template 2, so that the nested rod 14 and the upper insert 15 assembled by the built-in rod 13 are first separated from the upper side of the formed worm body 16 under the drive of the nested piece 12 in the positioning gear 10 assembled by the upper template 2, and the telescopic component 4 installed by the fixed rod 3 assembled on the upper template 2 is used to drive the telescopic component 5 to adjust the position of the rack 6, and effectively control the rack 6 to stably drive the linkage gear 8 connected to the positioning rotation of the upper template 2 under the limit of the limiter 7, and the linkage gear 8 is meshed and controlled by the speed change gear 9, and the positioning gear 10 used for the limit of the meshing adjustment positioning block 11 is set to rotate, which can drive the positioning gear 10 to control the nested piece 12 assembled by the ball clamping to form a positioning rotation, and rotate the side insert 17 of the nested piece 12 positioning assembly to separate from the outer side of the worm body 16;

[0039] The outer surface of the worm body 16 is threadedly connected with a side insert 17, and the side insert 17 is limitedly assembled on the lower side of the inner surface of the nesting piece 12, and the inner surface of the worm body 16 is nested with a lower insert 18, and the outer surface of the worm body 16 is clamped with the lower insert 18, and the outer surface of the lower insert 18 is nested with a positioning assembly 19;

[0040] The outer surface of the positioning component 19 is installed with a nesting piece 20, and the outer surface of the nesting piece 20 is installed with a lower template 21, and the lower surface of the lower template 21 is installed with a pad 22, and the pad 22 can form a bottom support connection for the lower insert 18, the positioning component 19 and the nesting piece 20.

[0041] The worm body 16 and the side insert 17 form a threaded rotation, and the side insert 17 and the nesting piece 12 form a threaded extrusion structure, and the worm body 16 and the lower insert 18 form a built-in structure, the worm body 16 and the positioning component 19 form a bottom nesting molding structure, and the lower insert 18 forms a limited nesting structure from the inside to the outside through the positioning component 19 and the nesting piece 20, and the nesting piece 20 and the lower template 21 form a built-in through structure.

[0042] By rotating and disengaging the side insert 17, the injection molding machine can be cooperated to drive the lower fixed plate to continuously move, so as to control the ejector installed on its ejector plate, the nested part 20 assembled with the lower template 21 installed on the pad 22, and the positioning assembly 19 nested in the lower insert 18 assembled with the nested part 20 to continuously move, thereby controlling the formed worm body 16 to be separated from the outer surface of the lower insert 18, and the formed worm body 16 can be demolded for use.

[0043] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A worm injection mold with multiple sets of rotary demoulding, provided with an upper fixing plate (1) assembled on an injection molding machine, and an upper mold plate (2) is installed on the lower surface of the upper fixing plate (1); It is characterized in that include: A fixed rod (3) is mounted on the rear side of the outer surface of the upper template (2), and a telescopic assembly (4) is mounted on the rear end side of the fixed rod (3), and the telescopic assembly (4) is connected to a telescopic member (5) through the outer surface of the telescopic rod, and a rack (6) is mounted on the inner surface of the telescopic member (5) in a limited manner, and a limiting member (7) is connected to the outer surface of the rack (6), so that the limiting member (7) is stably mounted on the side wall of the upper template (2); A linkage gear (8) is rotatably connected to the inner surface of the upper mold plate (2), and a rack (6) is meshedly connected to the lower left side of the outer surface of the linkage gear (8), and a speed change gear (9) is meshedly connected to the upper right side of the linkage gear (8), and a positioning gear (10) is meshedly connected to the side edge of the outer surface of the speed change gear (9), and a positioning block (11) is nested and installed on the upper side of the bearing assembled on the positioning gear (10); A nesting piece (12) is limitedly mounted on the inner surface of the positioning gear (10), and the inner surface of the nesting piece (12) is rotatably connected to a built-in rod (13), and the built-in rod (13) is positioned and nested on the inner surface of the upper template (2), and the built-in rod (13) is limitedly assembled with a nesting rod (14), and the inner surface of the nesting rod (14) is limitedly assembled with an upper insert (15), and a worm body (16) is formed by snapping on the lower surface of the upper insert (15).

2. The worm injection mold with multiple sets of rotary demoulding according to claim 1, characterized in that: The fixed rod (3) is embeddedly mounted on the rear side of the outer surface of the upper template (2), and the fixed rod (3) forms a limited telescopic structure with the telescopic component (4) and the telescopic member (5), and the telescopic member (5) and the rack (6) form a snap-fit ​​structure, while the rack (6) forms a limited sliding structure with the upper template (2) through the limiting member (7).

3. The worm injection mold with multiple sets of rotary demoulding according to claim 1, characterized in that: The linkage gear (8) and the upper template (2) form a positioning rotation structure, and the upper template (2) forms a linkage meshing rotation structure with the positioning gear (10) through the rack (6) through the linkage gear (8) and the speed gear (9), and the positioning gear (10) forms a positioning structure with the upper template (2) through the bearing and the positioning block (11).

4. The worm injection mold with multiple sets of rotary demoulding according to claim 1, characterized in that: The nesting piece 1 (12) forms a limited snap-fit ​​structure through a ball and a positioning gear (10), and the nesting piece 1 (12) and the built-in rod (13) form a rotation structure, and the built-in rod (13) and the upper template (2) form a limited nesting structure, and the built-in rod (13) and the upper insert (15) form a limited snap-fit ​​structure from outside to inside through the nesting rod (14), and the nesting rod (14) and the upper insert (15) and the worm body (16) form a top molding structure.

5. The worm injection mold with multiple sets of rotary demoulding according to claim 1, characterized in that: The outer surface of the worm body (16) is threadedly connected to a side insert (17), and the side insert (17) is limitedly assembled on the lower side of the inner surface of the nesting piece (12), and the inner surface of the worm body (16) is nested with a lower insert (18), and the outer surface of the worm body (16) is clamped and installed with the lower insert (18), and the outer surface of the lower insert (18) is nested and assembled with a positioning component (19); The outer surface of the positioning component (19) is mounted with a second nesting component (20), and the outer surface of the second nesting component (20) is mounted with a lower template (21), and the lower surface of the lower template (21) is mounted with a pad (22), and the pad (22) can form a bottom support connection for the lower insert (18), the positioning component (19) and the second nesting component (20).

6. The worm injection mold with multiple sets of rotary demoulding according to claim 1, characterized in that: The worm body (16) and the side insert (17) form a threaded rotation, and the side insert (17) and the nesting piece 1 (12) form a threaded extrusion structure, and the worm body (16) and the lower insert (18) form a built-in structure, and the worm body (16) and the positioning component (19) form a bottom nesting molding structure, and the lower insert (18) forms a limited nesting structure from the inside to the outside through the positioning component (19) and the nesting piece 2 (20), and the nesting piece 2 (20) and the lower template (21) form a built-in through structure.

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