CN217169512U - Mixed injection mold - Google Patents

Abstract

The application discloses mix injection mold, belong to mould equipment technical field, a function of moulding plastics for making mix injection mold possess each component element, shorten the cycle of mixing the moulding plastics, thereby promote injection efficiency, including the middle mould of can reforming, go up mould and lower mould, a pair of deflector of left and right sides fixedly connected with of last mould, the middle mould of can reforming rotates with the deflector to be connected, go up the mould in with deflector trailing flank fixedly connected with L shape die carrier, the bottom of L shape die carrier is located the below of last mould and is provided with lifting regulator, lifting regulator's expansion end up and fixedly connected with lower mould. This practicality is by rotatory deformation structure who constitutes with going up and down, easy operation, maintenance convenience, because only remain action under straight after the completion of moulding plastics in two stages, the drawing of patterns also can be more smooth and easy, need not additionally to set up demoulding mechanism, and the mould is structural also simpler.

Description

Mixed injection mold

Technical Field

The application relates to the technical field of mold equipment, in particular to a hybrid injection mold.

Background

In real life, many injection-molded parts are made of different color and structure combinations, and these combinations are not assembled after the product is produced, but are bonded together during the injection molding process, which is called co-injection molding.

Hybrid injection molding also requires an injection mold as in a conventional injection molding process, however, the existing hybrid injection mold has the following drawbacks: for example, different parts of the mixed injection molding part are separately injected and finally injected once in the main body mold, although the scheme is feasible, the picking and placing actions on small parts can increase the cycle of mixed injection molding and influence the efficiency. In order to solve the above problems, a novel hybrid injection mold is proposed herein.

Disclosure of Invention

The utility model aims at making mixed injection mold possess the function of moulding plastics to each component element, shortening the cycle of mixed moulding plastics to promote injection efficiency.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: this mix injection mold, including the middle mould of can changeing, go up mould and lower mould, go up a pair of deflector of left and right sides fixedly connected with of mould, but the middle mould of changeing with the deflector rotates to be connected, go up the mould with deflector trailing flank fixedly connected with L shape die carrier, the bottom of L shape die carrier is located go up the below of mould and be provided with lifting regulator, lifting regulator's expansion end up and fixedly connected with lower mould for adjust the height of lower mould, thereby realize the deformation of mould structure.

Preferably, the two guide plates are bilaterally symmetrical about the rotatable middle die, each guide plate is provided with a limiting rotating hole, and the limiting rotating holes penetrate through the left side surface and the right side surface of each guide plate.

Preferably, the rotatable middle mold is fixedly connected with rotating shafts at the left and right sides, and the rotating shafts are suitable for being inserted into the limiting rotating holes of the guide plate to form a deformable rotating structure.

Preferably, the lower mold is positioned between the guide plates, and the side surface of the lower mold and the guide plates and the inner wall of the L-shaped mold frame form a sliding pair, so that the movement stability of the lower mold is ensured, and the cavity has sufficient sealing property to prevent the injection liquid from leaking.

Preferably, one end of the rotating shaft, which is far away from the rotatable middle die, extends to the outer side of the guide plate and is fixedly connected with a steering handle, so that an operator can conveniently change the angle of the rotatable middle die 1.

Preferably, a limiting plate is fixedly connected to the front side surface of the guide plate, and the limiting plate is suitable for limiting the positions of the rotatable middle die and the steering handle.

Preferably, the bottom surface of the upper die is provided with a variable die cavity, the top of the upper die is provided with a first injection port, the first injection port is communicated with the inside of the variable die cavity, and the bottom of the lower die is provided with a second injection port for butt joint with an injection pipeline outside the die.

Preferably, the inner side of the rotatable intermediate mold is provided with a fit groove, and a plurality of protrusions higher than the surface of the rotatable intermediate mold are further arranged in the fit groove and used for enabling the injection molding part at the first stage to form a fit structure with a larger matching area, so that different parts of the whole injection molding part are connected more tightly.

Compared with the prior art, the beneficial effect of this application lies in:

(1) by performing deformable design on the die, a single die has a multi-stage injection molding function, the mixing concept that an injection molding product needs to be separated in a plurality of dies originally is changed into the multi-stage injection molding concept of the single die, the use cost of die equipment is reduced, the steps of taking out and arranging different parts from the dies are avoided, the time consumption of mixed injection molding is greatly shortened, and the production efficiency is improved;

(2) the deformation structure formed by rotation and lifting is simple to operate and convenient to maintain, and because the injection molding in two stages is completed and only the actions of straight up and down are left, the demolding can be smoother, a demolding mechanism is not required to be additionally arranged, and the mold is simpler in structure.

Drawings

FIG. 1 is a perspective view of the general assembly structure of the hybrid injection mold;

FIG. 2 is a perspective sectional view of the hybrid injection mold;

FIG. 3 is an enlarged view of a portion of the hybrid injection mold at A of FIG. 2;

FIG. 4 is a first view of the components of the hybrid injection mold in mating relationship;

FIG. 5 is a second view of the components of the hybrid injection mold in mating relationship;

fig. 6 is a partially enlarged view of the hybrid injection mold at B of fig. 5.

In the figure: 1. a rotatable intermediate die; 101. fitting the groove; 102. a rotating shaft; 2. an upper die; 201. a first injection port; 202. a variable die cavity; 3. a guide plate; 301. limiting and rotating the hole; 4. an L-shaped die carrier; 5. a limiting plate; 6. a steering handle; 7. a lower die; 701. a second injection port; 8. a lifting adjuster.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The hybrid injection mold as shown in fig. 1 to 6 includes a rotatable intermediate mold 1, an upper mold 2 and a lower mold 7, which form three main bodies of the mold and divide a mold cavity into two parts, a pair of guide plates 3 are fixedly connected to left and right sides of the upper mold 2, the two guide plates 3 are bilaterally symmetrical with respect to the rotatable intermediate mold 1 for ensuring stability of the lower mold 7 during up-and-down movement, each guide plate 3 is provided with a limit rotation hole 301, the limit rotation holes 301 penetrate left and right sides of the guide plates 3 for limiting the degree of freedom of a rotation shaft 102, the left and right sides of the rotatable intermediate mold 1 are fixedly connected with the rotation shaft 102 for realizing angle switching of the rotatable intermediate mold 1, the rotation shaft 102 is suitable for being inserted into the limit rotation holes 301 of the guide plates 3, and the rotatable intermediate mold 1 is rotatably connected with the guide plates 3 to form a folding structure required for mold deformation.

One end that rotation axis 102 kept away from the middle mould 1 that can change extends to the outside of deflector 3 and fixedly connected with steering handle 6, makes things convenient for operating personnel to change the angle of the middle mould 1 that can change, the leading flank fixedly connected with limiting plate 5 of deflector 3, limiting plate 5 is suitable for the position of restriction middle mould 1 that can change and steering handle 6, the leading flank of mould 2 can closely laminate with the medial surface of the middle mould 1 that can change, hourglass material when avoiding moulding plastics on the assurance.

Go up mould 2 with 3 trailing flank fixedly connected with L shape die carrier 4 of deflector, on the one hand make the mould die cavity form the space of relative seal, on the other hand plays the effect of supporting whole mould, the bottom of L shape die carrier 4 is located the below of last mould 2 and is provided with lifting regulator 8, its quantity has two, be used for steady regulation lower mould 7 for the height of last mould 2, lifting regulator 8's expansion end up and fixedly connected with lower mould 7, the bearing part that acts as the mould when can the type middle mould 1 returns vertical position, lower mould 7 is located between the deflector 3, the side of lower mould 7 and the inner wall of deflector 3 and L shape die carrier 4 constitute the pair of sliding, the laminating nature of side is good, only allow a small amount of air business turn over, can effectively avoid moulding plastics the liquid and omit.

The bottom surface of the upper die 2 is provided with a variable die cavity 202, the die can quantitatively change the internal size and the core structure of the injection die cavity through the self structure, the top of the upper die 2 is provided with a first injection port 201, in the first stage of injection molding step, the interface is butted with an external injection pipeline above the mold, the first injection molding port 201 is communicated with the interior of the variable mold cavity 202, so that injection molding liquid enters the mold cavity, the bottom of the lower mold 7 is provided with a second injection molding port 701, in the step of the second stage, a matching groove 101 is formed in the inner side of the rotatable middle die 1, and a plurality of bulges higher than the surface of the rotatable middle die 1 are further arranged in the matching groove 101, so that the lower surface of the formed part after the first stage injection molding forms a bulge with a concave-convex structure, the formed part formed by the second stage injection molding is conveniently meshed, and a more compact whole is formed.

The working principle of the mixed injection mold is as follows: when the mould is used, firstly, a first-stage injection molding operation is carried out, the lower mould 7 is driven by the lifting regulator 8 to descend to a lower limit position, the interference blocking effect of the lower mould 7 on the rotatable intermediate mould 1 is relieved, the steering handle 6 is slightly lifted upwards by an operator, the rotatable intermediate mould 1 enters a horizontal state, then the lifting regulator 8 can upwards jack the rotatable intermediate mould 1 to a completely horizontal position, so that the rotatable intermediate mould 1 can be tightly attached to the lower surface of the upper mould 2, the variable mould cavity 202 below the upper mould 2 enters a mould cavity state of a first-stage injection molding task, finally, an injection pipeline above the mould is in butt joint with the first injection port 201 to press molten injection liquid into the variable mould cavity 202 in the state, and after one end of cooling time, a first part structure of an injection molding part can be cooled and formed; then, the second stage injection molding operation is carried out, the lower mold 7 returns to the lower limit position again under the driving action of the lifting regulator 8, the rotatable intermediate mold 1 is released from the horizontal state by slightly shifting the steering handle 6, the rotatable intermediate mold 1 swings outwards under the self inertia effect, but due to the action of the limit plate 5, the rotatable intermediate mold 1 can reach the position in the vertical direction at most, the lifting regulator 8 is started again after an operator stabilizes the steering handle 6 with one hand to drive the lower mold 7 to push upwards along the inner walls of the rotatable intermediate mold 1, the guide plate 3 and the L-shaped mold frame 4 to the set height and then stop, at the moment, the variable mold cavity 202 is a mold cavity required by the second stage injection molding after the space occupied by the product structure formed by the first stage injection molding is formed, then an injection pipeline below the mold is in butt joint with the second injection port 701 to press the molten another injection liquid into the remaining space of the variable mold cavity 202 to complete the second injection molding, after the second injection molding solution is also cooled, the two injection molded structures are tightly combined to form a whole consisting of two color and shape structures. According to the design thought, the product can have the combination of multiple colors and shapes, and only the structure of the rotatable middle die 1 needs to be added at the corresponding position.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (8)

1. A hybrid injection mold, characterized in that: including the middle mould of can changeing, go up mould and lower mould, go up a pair of deflector of left and right sides fixedly connected with of mould, but the middle mould of changeing with the deflector rotates to be connected, go up the mould with deflector trailing flank fixedly connected with L shape die carrier, the bottom of L shape die carrier is located go up the below of mould and be provided with lifting regulator, lifting regulator's expansion end up and fixedly connected with lower mould.

2. The hybrid injection mold of claim 1, wherein: the two guide plates are bilaterally symmetrical about the rotatable middle die, each guide plate is provided with a limiting rotating hole, and the limiting rotating holes penetrate through the left side surface and the right side surface of each guide plate.

3. The hybrid injection mold of claim 2, wherein: the left side and the right side of the rotatable middle die are fixedly connected with rotating shafts, and the rotating shafts are suitable for being inserted into the limiting rotating holes of the guide plates.

4. The hybrid injection mold of claim 1, wherein: the lower die is positioned between the guide plates, and the side surface of the lower die and the inner walls of the guide plates and the L-shaped die frame form a sliding pair.

5. The hybrid injection mold of claim 3, wherein: one end of the rotating shaft, which is far away from the rotatable middle die, extends to the outer side of the guide plate and is fixedly connected with a steering handle.

6. The hybrid injection mold of claim 5, wherein: and the front side surface of the guide plate is fixedly connected with a limiting plate, and the limiting plate is suitable for limiting the positions of the rotatable middle die and the steering handle.

7. The hybrid injection mold of claim 1, wherein: the bottom surface of the upper die is provided with a variable die cavity, the top of the upper die is provided with a first injection port, the first injection port is communicated with the inside of the variable die cavity, and the bottom of the lower die is provided with a second injection port.

8. The hybrid injection mold of claim 1, wherein: the inner side of the rotatable middle die is provided with a fit groove, and a plurality of bulges higher than the surface of the rotatable middle die are arranged in the fit groove.

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