CN220362932U

CN220362932U - Protection structure of injection mold ejection device

Info

Publication number: CN220362932U
Application number: CN202322022360.9U
Authority: CN
Inventors: 陈同举
Original assignee: Dongguan Zhanfeng Sports Technology Co ltd
Current assignee: Dongguan Zhanfeng Sports Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-19
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses a protection structure of an injection mold ejection device, which comprises a lower mold core and an upper mold core mutually covered with the lower mold core, wherein the lower mold core is provided with a cavity lug for upward protruding injection molding, the lower mold core is provided with a through pinhole for the ejection device to protrude out of, and the ejection device is arranged at the lower inner end of the lower mold core and ejects an injection molded product out of the lower mold core through the through pinhole; the utility model has simple structure and convenient and quick use, the front end of the thimble is provided with the protective sleeve, so that the thimble is arranged in the die in a detachable way, the side wall of the die is effectively protected from being damaged in the using process, the middle protection function is realized, the die is not damaged after the thimble collides with the protective sleeve carelessly, the damage degree is reduced, and in the subsequent replacement and maintenance, the effect of quick maintenance can be realized only by detaching and replacing the damaged protective sleeve, the protectiveness of the die is improved, and the service time is prolonged.

Description

Protection structure of injection mold ejection device

Technical Field

The utility model relates to the technical field of injection molds, in particular to a protection structure of an injection mold ejection device.

Background

With the continuous development and progress of society, various plastic products, such as automobile interiors, clothes buttons and shells of various products, are required to be used in daily life, and are made of plastic materials; the plastic rubber material is injected into the corresponding mold through the injection molding machine, after the plastic rubber material is cooled, the plastic rubber product can be processed and molded, the processing and molding efficiency of the plastic rubber product is high, and the quantity requirements of market products can be met rapidly.

What is most important in the injection molding machine is that injection molding mould, the shaping groove of mould needs very smooth for injection molding's product can the quick drawing of patterns, thereby when avoiding the adhesion to the drawing of patterns on the mould, causes the damage to injection molding product, makes it appear breaking, and the damage leads to the fact extravagant, consequently, all can have the thimble in the injection molding mould on the market at present, jack up injection molding's product through the thimble, make it can the drawing of patterns, quick unloading.

However, the existing ejector pins are directly installed inside the mold, and in the long-time use process, the heads of the ejector pins are easy to collide with the side walls of the mold, so that the mold and the ejector pins are damaged, the ejector pin replacement operation is very inconvenient in the later replacement and maintenance, the repair and maintenance of the mold are required to be extremely careful, and the mold is required to be restored to the original state, so that the ejector pins are required to be prevented from damaging the side walls of the mold in the use process, and the maintenance is easy.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its primary objective is to provide a protection structure for an ejection device of an injection mold.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the protection structure of the ejection device of the injection mold comprises a lower mold core and an upper mold core mutually covered with the lower mold core, wherein a supporting guide post with a guiding function is arranged between the lower mold core and the upper mold core, a cavity convex block for upward protruding injection molding is arranged on the lower mold core, the upper mold core is provided with a molding groove which is concave upward and is matched with the cavity convex block, the center end of the lower mold core is provided with a glue injection channel for glue to flow into the cavity convex block, the lower mold core is also provided with an ejection device, the end surface of the lower mold core is provided with a through pinhole which is vertically communicated and is positioned in the cavity convex block and is used for the ejection device to extend out of the cavity convex block, and the ejection device is arranged at the lower inner end of the lower mold core and ejects and discharges an injection molded product through the through pinhole;

the ejection device comprises a mounting plate, an ejector pin and a protective sleeve, wherein the lower end of the ejector pin is fixedly arranged on the mounting plate and moves up and down along with the mounting plate, the protective sleeve is embedded and arranged in a through pinhole, and the upper end of the ejector pin stretches into the protective sleeve and stretches out of a lower die core to jack up an injection molding product.

Preferably, the protection sleeve is detachably mounted in the through needle hole.

As a preference, the mold further comprises a lower supporting plate and a bottom plate, wherein the lower supporting plate is arranged around the lower end of the lower mold core and surrounds a groove body in which the ejection device is arranged, the bottom plate is fixedly arranged on the end face of the lower supporting plate through bolts, and a through hole which penetrates up and down is formed in the bottom plate.

Preferably, the injection molding machine further comprises a driving device, wherein one end of the driving device extends into the through hole of the bottom plate and is connected with the mounting plate, and the driving device is used for controlling the mounting plate and the ejector pins at the upper end of the mounting plate to reciprocate up and down to eject the injection molding product.

Preferably, the number of the cavity protrusions on the lower die core is plural, and the plural cavity protrusions are distributed on two sides at intervals along the longitudinal central axis.

Preferably, a glue inlet is arranged between the glue injection channel and the plurality of cavity lugs, and the glue inlet is communicated with the glue inlet so that the glue injected by injection can flow into the cavity lugs to be cooled and formed into a product.

Preferably, the number of the through pinholes is plural, and the plural through pinholes are distributed in the cavity bump of the lower die core at intervals.

Preferably, the upper mold core is provided with a glue injection port, and the glue injection port is positioned above the glue injection channel and is used for injecting glue into the glue injection channel after mold assembly so as to facilitate injection molding of the product.

Preferably, the number of the glue injection ports is at least one.

Preferably, the four corners of the upper die core and the lower die core are respectively provided with a bolt fixing hole for fixing on an injection molding machine.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows: the utility model has simple structure and convenient and quick use, the front end of the thimble is provided with the protective sleeve, so that the thimble is arranged in the die in a detachable way, the side wall of the die is effectively protected from being damaged in the use process, the middle protection effect is achieved, the die is not damaged after the thimble collides with the protective sleeve carelessly, the damage degree is reduced, in the subsequent replacement and maintenance, the effect of quick maintenance can be realized only by detaching and replacing the damaged protective sleeve, the protectiveness of the die is improved, the service time is prolonged, the use cost of the injection die is reduced, and the production cost of enterprises is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of the present utility model in full section.

FIG. 3 is a schematic diagram of the end face of the lower mold insert according to the present utility model.

FIG. 4 is a schematic view of the structure of the protection sleeve of the present utility model.

Wherein, each reference sign in the figure:

10. a lower die core; 11. a cavity bump; 12. a through pinhole; 13. a lower support plate; 14. a bottom plate; 20. an upper die core; 30. supporting guide posts; 40. a glue injection channel; 41. a glue inlet; 50. an ejector device; 51. a mounting plate; 52. a thimble; 53. and (5) protecting the sleeve.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

Referring to fig. 1-4: the utility model provides a protection architecture of injection mold ejecting device, including lower mould benevolence 10 and the last mould benevolence 20 of mutually closing, still have the support guide pillar 30 that plays the guide effect between lower mould benevolence 10 and last mould benevolence 20, make last mould benevolence 20 when closing down, can be quick, accurate lid close on lower mould benevolence 10, and be equipped with the die cavity lug 11 that is used for upwards protruding injection molding on lower mould benevolence 10, be equipped with the shaping recess of upwards sunken and with die cavity lug 11 looks adaptation on last mould benevolence 20, make last mould benevolence 20 lid close on lower mould benevolence 10, form a space that is used for injection molding between the two, so that make sizing material injection molding become the product, still be equipped with the injecting glue passageway 40 that supplies sizing material to flow into in the die cavity lug 11 at the center end of lower mould benevolence 10, and through being equipped with ejection device 50 on lower mould benevolence 10, and the terminal surface of lower mould benevolence 10 is equipped with link up and be located the through the pinhole 12 that is used for ejecting device 50 to stretch out from the centre, when installing, set up the device 50 under the lower mould benevolence 10 and link up and the lower mould die cavity lug 12 through the pinhole is stretched out the device and is ejected out the product.

In this embodiment, the ejector 50 includes a mounting plate 51, a thimble 52 and a protection sleeve 53, the lower end of the thimble 52 is mounted and fixed on the mounting plate 51, the thimble 52 can move up and down along with the mounting plate 51, and the protection sleeve 53 is embedded and mounted in the through pinhole 12, so as to prevent the thimble 52 from directly touching the side wall of the mold cavity, and play a protection role, and when assembling, the upper end of the thimble 52 extends into the protection sleeve 53 and extends out from the lower mold core 10, so that an injection molded product is ejected out of the lower mold core 10, so as to facilitate rapid blanking and collection.

In actual use, the protection sleeve 53 is detachably mounted in the through pinhole 12, so that the protection sleeve 53 can be quickly replaced and maintained after being damaged, and the maintenance cost of the die is reduced.

In this embodiment, the injection molding machine further comprises a lower support plate 13, a bottom plate 14 and a driving device, wherein the lower support plate 13 is arranged around the lower end of the lower mold core 10 and surrounds a groove body for placing the ejection device 50, then the bottom plate 14 is fixedly installed on the end face of the lower support plate 13 through bolts, and through holes which are vertically penetrated are formed in the bottom plate 14, so that the driving device can extend into and be connected to the lower portion of the mounting plate 51 through the through holes, and when in use, the driving device controls the mounting plate 51 and the ejector pins 52 above the mounting plate to do up-down reciprocating motion, so that injection molded products are ejected out, and the collection processing flow of quick blanking is realized.

In this embodiment, the number of the cavity protrusions 11 on the lower mold core 10 is plural, and the number of injection molding products is increased by distributing the plural cavity protrusions 11 on two sides along the longitudinal central axis at intervals, so that the production efficiency and the molding number are improved, and the use demands of the market are satisfied.

Specifically, a glue inlet 41 is arranged between the glue injection channel 40 and the plurality of cavity protruding blocks 11, so that the glue inlet 41 is communicated with the glue inlet to facilitate the glue injected by injection molding, the glue can smoothly flow into the cavity protruding blocks 11 to be injected into products required by the behaviors, and then after the glue is filled and cooled to be molded, the products required by the behaviors can be injected and processed.

Further, the number of the through pinholes 12 is set to be plural, the plural through pinholes 12 are distributed in the cavity protruding block 11 of the lower die core 10 at intervals, and the plural through pinholes 12 are uniformly distributed in the cavity protruding block 11, so that injection molded products can be jacked up at the same time, the situation that adhesion occurs on the outer surface of the cavity protruding block 11 is avoided, smooth demolding of the products is ensured, and the integrity of the products is protected.

Further, the upper mold core 20 is further provided with a glue injection port, the glue injection port is arranged above the glue injection channel 40, so that the upper mold core 20 closes and closes the lower mold core 10, glue is injected into the glue injection channel 40 through the glue injection port, glue can be smoothly injected into the cavity convex block 11, and after the glue is cooled, the glue can be injection molded into a required product.

Specifically, the number of the glue injection openings is at least one, and in actual use, the number of the glue injection openings is two or more, so that the speed of glue filling can be improved, and the situation that glue flows too slowly and is cooled in the glue injection channel 40, so that qualified products cannot be finally formed is avoided.

In this embodiment, the four corners of the upper mold core 20 and the lower mold core 10 are respectively provided with a bolt fixing hole for fixing on an injection molding machine, the upper mold core 20 or the lower mold core 10 can be fixedly installed on a machine table of the injection molding machine through the bolt fixing holes, the loosening and falling of the upper mold core 20 or the lower mold core 10 in the long-time injection molding process are avoided, and the lower mold core can be quickly disassembled for replacement when not needed.

The foregoing description of the preferred embodiments of the present utility model has been provided for the purpose of illustrating the general principles of the present utility model and is not to be construed as limiting the scope of the utility model in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model, and other embodiments of the present utility model as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present utility model.

Claims

1. The utility model provides a protection architecture of injection mold ejecting device, includes lower mould benevolence and rather than the last mould benevolence of mutual lid closes, has the support guide pillar that plays the guide effect between lower mould benevolence and the last mould benevolence, its characterized in that: the lower die core is provided with a cavity lug for upward protruding injection molding, the upper die core is provided with a forming groove which is recessed upward and is matched with the cavity lug, the center end of the lower die core is provided with a glue injection channel for glue to flow into the cavity lug, the lower die core is also provided with an ejection device, the end surface of the lower die core is provided with a through pinhole which penetrates up and down and is positioned in the cavity lug and is used for the ejection device to extend out of the cavity lug, and the ejection device is arranged at the lower inner end of the lower die core and ejects the injection molded product out of the material through the through pinhole;

2. The protection structure of an injection mold ejection device according to claim 1, characterized in that: the protective sleeve is detachably arranged in the through needle hole.

3. The protection structure of an injection mold ejection device according to claim 1, characterized in that: the lower support plate is arranged around the lower end of the lower die core and encloses a groove body for placing the ejection device, the bottom plate is fixedly arranged on the end face of the lower support plate through bolts, and through holes which are vertically communicated are formed in the bottom plate.

4. The protection structure of an injection mold ejection device according to claim 3, wherein: the injection molding machine further comprises a driving device, one end of the driving device extends into the through hole of the bottom plate and is connected with the mounting plate, and the driving device is used for controlling the mounting plate and the ejector pins at the upper end of the mounting plate to reciprocate up and down to eject injection molding products.

5. The protection structure of an injection mold ejection device according to claim 1, characterized in that: the number of the cavity lugs on the lower die core is plural, and the cavity lugs are distributed on two sides along the longitudinal central axis at intervals.

6. The protection structure of an injection mold ejection device according to claim 5, wherein: and a glue inlet is arranged between the glue injection channel and the plurality of cavity lugs, and the glue inlet is communicated with the glue inlet so that the glue injected by injection can flow into the cavity lugs to be cooled and formed into a product.

7. The protection structure of an injection mold ejection device according to claim 1, characterized in that: the number of the through pinholes is plural, and the plural through pinholes are distributed in the cavity convex blocks of the lower die core at intervals.

8. The protection structure of an injection mold ejection device according to claim 1, characterized in that: the upper die core is provided with a glue injection port, and the glue injection port is positioned above the glue injection channel and used for injecting glue into the glue injection channel after die assembly so as to facilitate injection molding of products.

9. The protection structure of an injection mold ejection device according to claim 8, wherein: the number of the glue injection ports is at least one.

10. The protection structure of an injection mold ejection device according to claim 1, characterized in that: four corners of the upper die core and the lower die core are respectively provided with a bolt fixing hole used for being fixed on the injection molding machine.