CN217670782U

CN217670782U - Helical gear injection mold with replaceable mold core

Info

Publication number: CN217670782U
Application number: CN202221424257.6U
Authority: CN
Inventors: 龚向前
Original assignee: Foshan Hengyunshun Hardware Products Co ltd
Current assignee: Foshan Hengyunshun Hardware Products Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-10-28
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a helical gear injection mold of removable mold core, including lower mould, mold core, go up the mould, slide and motor, the utility model discloses a set up the standing groove in the lower mould bottom, the inside removable mold core that is provided with of standing groove, the lower mould top is provided with the hydraulic stretching post, be provided with the mould in the middle of the hydraulic stretching post, go up the mould top and set up the first mouth of moulding plastics that runs through to the bottom, the bottom is provided with the slide, the second mouth of moulding plastics has been seted up to the slide bottom, the second mouth bottom opening part of moulding plastics is provided with annular blade, mould plastics the inslot portion of moulding plastics at mouthful to the lower mould top through first mouth of moulding plastics and second, pull the slide behind the injection moulding utilizes annular blade to excise the material, the convenience directly carries out the disconnected material operation after the completion of moulding plastics, save time facilitates the use.

Description

Helical gear injection mold with replaceable mold core

Technical Field

The utility model relates to an injection mold technical field specifically is a helical gear injection mold of removable mold core.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Injecting molten plastic into a mold cavity at high pressure by an injection molding machine, and cooling and solidifying to obtain a formed product, wherein the mold is divided into a thermosetting plastic mold, an automobile mold and a thermoplastic plastic mold according to forming characteristics; the molding process includes transfer molding, blow molding, casting, thermoforming, hot pressing (compression), injection molding, etc. the hot pressing may be flash, semi-flash, or non-flash, and the injection may be cold runner or hot runner with a pouring system; the mould can be divided into a movable type and a fixed type according to the loading and unloading mode, processing enterprises need to test various performances of the mould under the condition that an injection molding machine and the mould normally operate, the size of a finally formed plastic part is measured, and the existing state of the mould can be determined according to the information. However, when the existing helical gear injection mold works, when helical gears of different shapes need to be injected, the mold needs to be replaced, and the process is complex; therefore, the existing requirements are not met, and a helical gear injection mold with a replaceable mold core is provided. Application number 202122140480.X discloses a helical gear injection mold of removable mold core, removable mold core has been installed through the upper end at the mold core standing groove, the setting of removable mold core can be at the part of other size shapes of the production of moulding plastics, when needing to change the mould, only need grasp the handle of lifting up on removable mold core both sides and lift up removable mold core, again will accord with the removable mold core of manufacturing requirement and install in injection mold, just can realize the requirement that an injection mold can make multiple gear part, when having avoided current helical gear injection mold when meetting the helical gear of different shapes that need mould plastics at the during operation, still need change the mould, the comparatively complicated problem of process.

However, the helical gear injection mold with the replaceable mold core in the application does not have the material cutting function on the mold after injection molding, and the helical gear injection mold is required to be subjected to material cutting operation after being taken down after injection molding is completed, so that the helical gear injection mold is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the conventional helical gear injection mold with a replaceable core.

Therefore, the utility model aims at providing a helical gear injection mold of removable mold core, through set up the standing groove in the lower mould bottom, the inside removable mold core that is provided with of standing groove, the lower mould top is provided with the hydraulic stretching post, be provided with the mould in the middle of the hydraulic stretching post, go up the mould top and set up the first mouth of moulding plastics that runs through to the bottom, the bottom is provided with the slide, the second mouth of moulding plastics has been seted up to the slide bottom, the second mouth bottom opening part of moulding plastics is provided with annular blade, mould plastics the inslot portion of moulding plastics at lower mould top through first mouth and the second mouth of moulding plastics, it utilizes annular blade to amputate to expect behind the injection moulding to pull the slide, the convenience directly carries out the disconnected material operation after the completion of moulding plastics, save time facilitates the use.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a helical gear injection mold with replaceable mold core, comprising:

the hydraulic telescopic column structure comprises a lower die, a lower die and a hydraulic telescopic column, wherein the top of the lower die is provided with a mounting groove, and four corners of the top of the lower die are provided with the hydraulic telescopic column;

the mold core is positioned in the mounting groove, and the top of the mold core is provided with an injection molding groove;

the upper die is arranged on the hydraulic telescopic column rod body, an injection molding hole is formed in the top of the upper die, a sliding groove is formed in the bottom of the upper die, and a guide rod is arranged in the sliding groove;

the sliding plate is located at the bottom of the upper die, a through hole is formed in the bottom of the sliding plate, an annular blade is arranged at an opening in the bottom of the through hole, a sliding block is mounted at the top of the sliding plate, a guide hole is formed in the side wall of the sliding block, the sliding block is located inside the sliding groove, and the guide rod penetrates through the guide hole.

As a helical gear injection mold's of removable mold core preferred scheme, wherein, go up the mould lateral wall and seted up the guide way, the guide way with the spout intercommunication, the inside spring that is provided with of slider, the guide bar runs through the spring inner circle.

As a helical gear injection mold's of removable mold core preferred scheme, wherein, the side slide is installed to the slider lateral wall, the side slide is located inside the guide way, the connecting rod is installed to the side slide other end, the handle is installed to the connecting rod other end.

As a helical gear injection mold's of removable mold core preferred scheme, wherein, the draw-in groove has been seted up at the lower mould top, the draw-in groove with the mounting groove intercommunication, the second mounting groove has been seted up to the mounting groove bottom.

As a helical gear injection mold's of removable mold core preferred scheme, wherein, the handle is installed to mold core symmetry lateral wall, the handle is located inside the draw-in groove, the spout has been seted up to the tank bottom of moulding plastics, the spout diameter is less than through-hole diameter, the spout extends to the mold core bottom.

As a helical gear injection mold of removable mold core an preferred scheme, wherein, still include the motor, the motor is installed second mounting groove bottom, the threaded rod is installed to motor top output, the threaded rod top is provided with the traveller, the threaded rod bottom set up threaded hole, the threaded rod is rotatory to be stretched into threaded hole inside, the liftout plate is installed at the traveller top, the traveller stretches into inside the slide opening, the liftout plate is located slide opening department, the liftout plate top with the tank bottom of moulding plastics is in same horizontal plane, liftout plate diameter with the slide opening diameter is unanimous.

Compared with the prior art: through seting up the standing groove bottom the lower mould, the inside removable mold core that is provided with of standing groove, the lower mould top is provided with the flexible post of hydraulic pressure, be provided with the mould in the middle of the flexible post of hydraulic pressure, go up the mould top and set up the first mouth of moulding plastics that runs through to the bottom, the bottom is provided with the slide, the second mouth of moulding plastics has been seted up to the slide bottom, the second mouth bottom opening part of moulding plastics is provided with cyclic annular blade, mould plastics the inslot portion of moulding plastics to the lower mould top through first mouth and the second mouth of moulding plastics, pull the slide behind the injection moulding utilizes cyclic annular blade to excise the material, the convenience is directly carried out the disconnected material operation after the completion of moulding plastics, save time facilitates the use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive laboriousness. Wherein:

FIG. 1 is an overall structure diagram of a helical gear injection mold with a replaceable mold core according to the present invention;

FIG. 2 is a bottom structure view of the upper mold of the helical gear injection mold with a replaceable mold core of the present invention;

FIG. 3 is a lower die structure diagram of the helical gear injection mold with a replaceable die core of the present invention;

fig. 4 is the utility model relates to a helical gear injection mold motor structure chart of removable mold core.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a helical gear injection mold of removable mold core, through seting up the standing groove in the lower mould bottom, the inside removable mold core that is provided with of standing groove, the lower mould top is provided with the hydraulic stretching post, be provided with the mould in the middle of the hydraulic stretching post, go up the mould top and set up the first mouth of moulding plastics that runs through to the bottom, the bottom is provided with the slide, the second mouth of moulding plastics has been seted up to the slide bottom, the second mouth bottom opening part of moulding plastics is provided with annular blade, mould plastics mouthful through first mouth of moulding plastics and second and mould plastics the inslot portion of moulding plastics at lower mould top, pull the slide behind the injection moulding utilizes annular blade to amputate the material, the convenience directly carries out the disconnected material operation after the completion of moulding plastics, save time facilitates the use.

Fig. 1 to 4 show a first structural schematic diagram of an embodiment of a helical gear injection mold with a replaceable mold core according to the present invention, and referring to fig. 1 to 4, the helical gear injection mold with a replaceable mold core according to the present embodiment includes a lower mold 100, a mold core 200, an upper mold 300, a sliding plate 400, and a motor 500.

Mounting groove 110 has been seted up at lower mould 100 top, hydraulic telescoping post 120 is installed at lower mould 100 top four corners, draw-in groove 130 has been seted up at lower mould 100 top, draw-in groove 130 and mounting groove 110 intercommunication, draw-in groove 130 is used for carrying on spacing fixedly to handle 220, second mounting groove 140 has been seted up to mounting groove 110 bottom, second mounting groove 140 is located draw-in groove 130 bottom center department, slide opening 230, second mounting groove 140, through-hole 410 and injection molding hole 310 are located same perpendicular line.

The mold core 200 is located inside the installation groove 110, the injection molding groove 210 is formed in the top of the mold core 200, the pull handle 220 is installed on the symmetrical side wall of the mold core 200, the pull handle 220 is located inside the clamping groove 130, the sliding hole 230 is formed in the bottom of the injection molding groove 210, the diameter of the sliding hole 230 is smaller than that of the through hole 410, the sliding hole 230 extends to the bottom of the mold core 200, when the mold core 200 is located inside the installation groove 110, the sliding hole 230 is communicated with the second installation groove 140, the sliding column 520 is inserted into the sliding hole 230, the top of the ejection plate 540 is flush with the opening in the top of the sliding hole 230, the bottom of the injection molding groove 210 is sealed, and injection molding work inside the injection molding groove 210 is not affected.

Go up mould 300 and install at hydraulic telescoping post 120 pole body, mould 300 top has been seted up injection molding hole 310, go up mould 300 bottom and seted up spout 320, guide bar 330 is installed to spout 320, go up mould 300 lateral wall and seted up guide way 350, guide way 350 and spout 320 intercommunication, slider 420 inside is provided with spring 340, guide bar 330 runs through the inner circle of spring 340, guide bar 330 runs through guide hole 430, be used for supporting slider 420 and slide in spout 320 inside, connect slide 400 in last mould 300 bottom, when slide 400 slides in last mould 300 bottom, slider 420 slides and extrudees spring 340 in spout 320 inside, after the cutting, spring 340 kick-backs and promotes slider 420 and kick-backs and reset, make through-hole 410 and 360 be in same perpendicular line.

The sliding plate 400 is located at the bottom of the upper die 300, a through hole 410 is formed in the bottom of the sliding plate 400, an annular blade is arranged at an opening in the bottom of the through hole 410, a sliding block 420 is mounted at the top of the sliding plate 400, a guide hole 430 is formed in the side wall of the sliding block 420, the sliding block 420 is located inside the guide groove 350, a connecting rod 450 is mounted at the other end of the sliding block 440, a handle 460 is mounted at the other end of the connecting rod 450, when the inside of the injection molding groove 210 is injected through the injection molding hole 310, injection molding materials flow into the inside of the injection molding groove 210 through the through hole 410 and are molded inside the injection molding groove 210, after the inside of the injection molding groove 210 is injected, the handle 460 is pulled to drive the sliding block 440 and the sliding plate 400 to slide, the blade at the opening in the bottom of the through hole 410 is cut, the molded material inside the injection molding groove 210 is cut off, and time for subsequently cutting the material is saved.

The motor 500 is installed at the bottom of the second installation groove 140, the threaded rod 510 is installed at the output end of the top of the motor 500, the sliding column 520 is arranged above the threaded rod 510, the threaded hole 530 is formed in the bottom of the sliding column 520, the threaded rod 510 rotatably extends into the threaded hole 530, the ejection plate 540 is installed at the top of the sliding column 520, the sliding column 520 extends into the sliding hole 230, the ejection plate 540 is located at the opening of the top of the sliding hole 230, the top of the ejection plate 540 and the bottom of the injection molding groove 210 are located on the same horizontal plane, the diameter of the ejection plate 540 is identical to that of the sliding hole 230, the guide sliding block is installed on the rod of the sliding column 520, the guide sliding block is installed on the inner wall of the sliding hole 230 and the inner wall of the second installation groove 140, after the injection molding inside of the injection molding groove 210, the motor 500 is started to drive the threaded rod 510 to rotate, the threaded rod 510 pushes the sliding column 520 to slide inside the sliding hole 230 by the lead screw structure when rotating, the ejection plate 540 extends out of the sliding hole 230, the molding groove 210 is ejected, the molding material is ejected out, inside the sliding hole 230 is reset and retracted, the upper mold 300 is moved to the lower mold 100 again, the ejection plate 500 is pushed out again, the ejection plate penetrates through the ejection hole 540, and the ejection plate 410.

Referring to fig. 1 to 4, in the helical gear injection mold with a replaceable mold core according to the embodiment, after a lower mold 100 is fixed in use, a mold core 200 with a corresponding shape and size is inserted into an installation groove 110, a hydraulic telescopic column 120 is started to drive an upper mold 300 to cover the top of the mold core 200 downwards, an injection molding material is injected into an injection molding groove 210 from an injection molding hole 310, a slider 400 is pulled after injection molding to cut off a handle at the top of the molding material by using a bottom knife edge of a through hole 410, the hydraulic telescopic column 120 is started to drive the upper mold 300 to move upwards, a starter motor 500 pushes an ejection plate 540 to move upwards to eject the molding material from the inside of the injection molding groove 210, and simultaneously drives the upper mold 300 to reset, the starter motor 500 drives the ejection plate 540 to move upwards again to eject the molding material from the injection molding hole 310.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a helical gear injection mold of removable mold core which characterized in that includes:

the hydraulic telescopic column structure comprises a lower die (100), wherein a mounting groove (110) is formed in the top of the lower die (100), and hydraulic telescopic columns (120) are mounted at four corners of the top of the lower die (100);

the mold core (200) is positioned in the installation groove (110), and the top of the mold core (200) is provided with an injection molding groove (210);

the hydraulic telescopic column comprises an upper die (300), wherein the upper die (300) is installed on a rod body of the hydraulic telescopic column (120), an injection molding hole (310) is formed in the top of the upper die (300), a sliding groove (320) is formed in the bottom of the upper die (300), and a guide rod (330) is installed on the sliding groove (320);

slide (400), slide (400) are located go up mould (300) bottom, through-hole (410) have been seted up to slide (400) bottom, through-hole (410) bottom opening part is provided with annular blade, slider (420) are installed at slide (400) top, guiding hole (430) have been seted up to slider (420) lateral wall, slider (420) are located inside spout (320), guide bar (330) run through guiding hole (430).

2. The bevel gear injection mold with the replaceable mold core as claimed in claim 1, wherein a guide groove (350) is formed in a side wall of the upper mold (300), the guide groove (350) is communicated with the sliding groove (320), a spring (340) is arranged inside the sliding block (420), and the guide rod (330) penetrates through an inner ring of the spring (340).

3. The helical gear injection mold with the replaceable mold core as claimed in claim 2, wherein a side slider (440) is installed on a side wall of the slider (420), the side slider (440) is located inside the guide groove (350), a connecting rod (450) is installed at the other end of the side slider (440), and a grip (460) is installed at the other end of the connecting rod (450).

4. The bevel gear injection mold with the replaceable mold core as claimed in claim 3, wherein a clamping groove (130) is formed at the top of the lower mold (100), the clamping groove (130) is communicated with the mounting groove (110), and a second mounting groove (140) is formed at the bottom of the mounting groove (110).

5. The bevel gear injection mold with the replaceable mold core as claimed in claim 4, wherein a pull handle (220) is installed on the symmetrical side wall of the mold core (200), the pull handle (220) is located inside the clamping groove (130), a sliding hole (230) is formed at the bottom of the injection molding groove (210), the diameter of the sliding hole (230) is smaller than that of the through hole (410), and the sliding hole (230) extends to the bottom of the mold core (200).

6. The bevel gear injection mold with the replaceable mold core as claimed in claim 5, further comprising a motor (500), wherein the motor (500) is installed at the bottom of the second installation groove (140), a threaded rod (510) is installed at an output end of the top of the motor (500), a sliding column (520) is arranged above the threaded rod (510), a threaded hole (530) is formed in the bottom of the sliding column (520), the threaded rod (510) rotatably extends into the threaded hole (530), an ejection plate (540) is installed at the top of the sliding column (520), the sliding column (520) extends into the sliding hole (230), the ejection plate (540) is located at an opening at the top of the sliding hole (230), the top of the ejection plate (540) and the bottom of the injection molding groove (210) are located on the same horizontal plane, and the diameter of the ejection plate (540) is consistent with the diameter of the sliding hole (230).