Mold structure capable of realizing lateral demolding

Abstract

The utility model provides a lateral demoulding mould structure, which comprises an upper mould, a lower mould and a lateral mould mechanism, the upper mould, the lower mould and the lateral mould mechanism jointly enclose to form an accommodating cavity for accommodating an injection product, and the lateral mould mechanism comprises a lateral moving block and a demoulding block; a lug boss extending upwards is arranged on the demolding block, and at least part of the lug boss extends into the accommodating cavity; when the mold is opened, the side mold mechanism laterally moves to drive the demolding block to move downwards, so that vertical demolding of the lug boss and the injection product is realized; through cooperation of the side mold mechanism and the main ejection mechanism, multi-direction step-by-step demolding is achieved, the demolding damage risk of a product of a complex structure is remarkably reduced, and the yield is increased; according to the innovatively designed linkage driving mechanism, the lateral demolding mechanism and the main ejection mechanism are integrated in a power mode, an additional power source does not need to be configured, the mold structure is simplified, the manufacturing cost and the failure rate are reduced, and an efficient solution is provided for production of complex injection molding products.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold field, concretely relates to a mold structure of side demolding. BACKGROUND

[0002] In the field of injection mold, the design of demolding structure directly influences product forming efficiency and quality, in prior art, the mainstream demolding mode is multiple to realize the separation of product and mold depending on single direction main top mechanism, this kind of structure has significant limitation when facing the injection molding of complex geometric features such as lateral buckle, reverse buckle, through hole, since single demolding direction cannot cover multi-angle structure, forcibly demolding is easy to cause local stress concentration of product, and deformation or fracture is caused, and the yield rate is greatly reduced, in addition, in prior art, to solve the problem of side demolding, usually need to add independent power device to drive lateral mechanism, which not only increases the complexity of mold structure, but also leads to the rise of manufacturing cost and the increase of maintenance difficulty. SUMMARY

[0003] (1) technical problem to be solved

[0004] The utility model provides a mold structure of side demolding, aims at solving the problems of single demolding direction and complex power system.

[0005] (2) technical scheme

[0006] The utility model provides a mold structure of side demolding, including mutually open and close setting's upper die and lower die, at least one side of the upper die and the lower die is equipped with side die mechanism, the upper die, lower die and side die mechanism jointly enclose and form the containing cavity for containing injection molding product, side die mechanism includes side shift block and demolding block, be equipped with inclined plane one on the side shift block, be equipped with inclined plane two corresponding with inclined plane one on the demolding block;

[0007] Wherein, be equipped with the protruding portion extending upwards on the demolding block, at least part of the protruding portion extends into the containing cavity;

[0008] When opening the mold, the side shift of side die mechanism makes the side shift block move along the direction away from the injection molding product, drives the demolding block to move down, realizes the up and down demolding of the protruding portion and the injection molding product.

[0009] Further, the side die mechanism further includes an inclined block, the inclined block is fixedly arranged on the bottom of the side shift block, and the inclined block and the side shift block enclose a guide groove for containing at least part of the demolding block.

[0010] Further, the demolding block is provided with a guide portion corresponding to the guide groove, the bottom of the guide portion is provided with an inclined surface three, and the inclined block is provided with an inclined surface four corresponding to the inclined surface three.

[0011] Further, the guide groove extends integrally towards the obliquely upper side away from the injection molding product.

[0012] Further, the upper die top is provided with a pushing block corresponding to the side die mechanism, the pushing block is provided with a first guide surface, and the side die mechanism is provided with a second guide surface corresponding to the first guide surface.

[0013] Further, a first wear-resistant block is arranged between the first guide surface and the second guide surface.

[0014] Further, an inclined groove is arranged in the side die mechanism, and an inclined column is arranged on the pushing block and is slidably connected in the inclined groove.

[0015] Further, the inclination angle of the inclined groove is the same as the inclination angle of the second guide surface.

[0016] Further, the side die mechanism is provided with a cooling pipeline having a cooling effect on the side die mechanism.

[0017] Further, the side die mechanism is provided with a cooling head in communication with the cooling pipeline.

[0018] Compared with the prior art, the beneficial effects of the utility model lie in that through the cooperative matching of the side die mechanism and the main top mechanism, multidirectional step-by-step demolding is realized, the demolding damage risk of complex structure products is significantly reduced, and the yield is improved; the innovatively designed linkage driving mechanism integrates the side demolding action and the main top mechanism power, without the need of additionally configuring an independent power source, the mold structure is simplified, the manufacturing cost and the failure rate are reduced, the overall scheme is superior to the traditional structure in functionality, economy and reliability, and provides an efficient solution for the production of complex injection molding products. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the utility model is shown Figure 1 .

[0020] Figure 2 The structure of the utility model is shown Figure 2 .

[0021] Figure 3 The cross section of the utility model is shown Figure 1 .

[0022] Figure 4 The explosion of the utility model is shown Figure 1 .

[0023] Figure 5 The cross section of the utility model is shown Figure 2 .

[0024] Figure 6 The utility modelFigure 5 Mobile schematic view.

[0025] Figure 7 For the explosion Figure 2 .

[0026] Figure 8 For the cross section Figure 3 .

[0027] Figure 9 For the utility model Figure 8 Mobile schematic view.

[0028] Figure 10 For the structure of the utility model Figure 3 .

[0029] Figure 11 For the cross section Figure 4 .

[0030] Reference signs:

[0031] 1 - upper die, 2 - lower die, 3 - side die mechanism, 31 - side moving block, 311 - inclined surface one, 32 - demoulding block, 321 - inclined surface two, 322 - protruding part, 323 - guide part, 324 - inclined surface three, 33 - inclined block, 331 - inclined surface four, 34 - guide groove, 35 - second guide surface, 36 - inclined groove, 37 - cooling pipeline, 38 - cooling head, 4 - injection molding product, 41 - through hole, 5 - containing cavity, 6 - pushing block, 61 - first guide surface, 62 - first wear-resistant block, 63 - inclined column, 7 - main top mechanism. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0033] As Figures 1-6 shown, the utility model provides a kind of die structure of lateral demoulding, including the upper die 1 and lower die 2 of each other opening and closing setting, the two sides of the upper die 1 and the lower die 2 are equipped with the side die mechanism 3 of symmetric setting, the upper die 1, lower die 2 and two side die mechanism 3 are enclosed to form the containing cavity 5 for accommodating injection molding product 3, the appearance of the injection molding product 4 is a semicircle plastic ring, the containing cavity 5 is equipped with main top mechanism 7 below the injection molding product 4 in, injection molding product 4 is pushed out to complete a part demoulding upwards;

[0034] The side mold mechanism 3 includes a side shift block 31 and a release module 32, which are in contact with each other vertically. In their contact surface, the side shift block 31 is provided with a first inclined surface 311, and the release module 32 is provided with a second inclined surface 321 corresponding to the first inclined surface 311. The release module 32 is provided with an upwardly extending protrusion 322, at least a portion of which extends into the injection molded product 4 in the receiving cavity 5. The shape of the protrusion 322 is designed according to part of the structure of the injection molded product, that is, the release module 32 is a bridge between the side mold mechanism 3 and the injection molded product.

[0035] During mold opening, the side mold mechanism 3 moves laterally, causing the side-moving block 31 to move away from the injection molded product 4, which in turn moves the demolding block 32 downward, thereby achieving the demolding of the protrusion 322 from the injection molded product 4. Then, the main ejector mechanism 7 ejects upward, achieving the demolding of the injection molded product 4. It is worth noting that the side mold mechanism 3 achieves the demolding of a portion of the structure of the protrusion 322 from the injection molded product 4, while the main ejector mechanism 7 achieves the demolding of the main structure of the injection molded product 4. In addition, during the demolding process, the side mold mechanism 3 first completes the lateral movement, and then the main ejector mechanism 7 ejects upward to demold.

[0036] Most injection molding demolding structures on the market use a unidirectional demolding method. When encountering relatively complex products, such as small-sized snap-fits, undercuts, and through-holes, the unidirectional main ejector structure cannot achieve perfect demolding. This is because the main ejector part of most demolding structures is designed to demold the main structure of the product and cannot be designed to achieve effective demolding without damage based on the shape of the snap-fits, hooks, or through-holes. In this case, a demolding mechanism needs to be added in another direction, such as the side, to distinguish it from the main ejector mechanism and demold the snap-fits, hooks, and through-holes separately. However, if its demolding direction is exactly the same as the demolding direction of the main ejector mechanism, effective demolding will also be impossible. The side mold mechanism 3 of this application solves the above problems. The lateral movement of the side mold mechanism 3 can achieve vertical demolding of the through-hole 41 at the bottom of the vertically extending injection molded product 4.

[0037] Specifically, such as Figures 4-6 As shown, in one embodiment of this utility model, the side mold mechanism 3 further includes an inclined block 33, which is fixedly disposed at the bottom of the side shift block 31. The side shift block 31 and the inclined block 33 are provided with a snap-fit ​​structure to realize a fixed connection between the two in the horizontal direction. The inclined block 33 and the side shift block 31 enclose and form a guide groove 34 that accommodates at least part of the detachable module 32. This split mechanism design greatly reduces the production cost when producing the mechanism with the guide groove 34 inside. During installation, it is only necessary to simply snap it on top and bottom, which is simple, convenient and effective.

[0038] Further, as shown in Figures 4-6 the drawing, the demolding module 32 is provided with a guide portion 323 corresponding to the guide groove 34, the bottom of the guide portion 323 is provided with an inclined surface three 324, the inclined block 33 is provided with an inclined surface four 331 corresponding to the inclined surface three 324, and the guide groove 34 extends to the obliquely upper side away from the injection molded product 4. The inclined structure design makes the guide portion 323 of the demolding module 32 extend into the guide groove 34, and there are force points in the up-down and left-right four directions. When the mold is opened, the side shifting mechanism 3 makes the side shifting block 31 and the inclined block 33 move synchronously in the direction away from the injection molded product 4. At this time, when the side shifting block 31 and the demolding module 32 move relatively in the horizontal direction, the inclined surface one 311 exerts a downward thrust on the inclined surface two 321 at the top of the demolding module 32, that is, makes the demolding module 32 move downward along the guide groove 34. The demolding module 32 extends to the protruding portion 322 of the injection molded product 4 to separate from the injection molded product 4 to achieve up-down demolding. After completion, the side mold mechanism 3 is reset to the injection molded product 4. At this time, the inclined surface four 331 on the inclined block 33 exerts an upward thrust on the inclined surface three 324 at the bottom of the demolding module 32, that is, makes the demolding module 32 move upward along the guide groove 34 to complete the reset of the side shifting mechanism 3.

[0039] Specifically, as shown in Figures 7-9 the drawing, in an example of the utility model, the upper die 1 is provided with a pushing block 6 corresponding to the side mold mechanism 3, the pushing block 6 is arranged obliquely above the side mold mechanism 3, and the two are in direct contact with the contact surface being inclined. The pushing block 6 is provided with a first guide surface 61, and the side mold mechanism 3 is provided with a second guide surface 35 corresponding to the first guide surface 61. The horizontal direction of the side shifting mechanism 3 is provided with a spring device, and the elastic action of the spring makes the side shifting mechanism 3 always move away from the injection molded product 4. The pushing block 6 exerts a force opposite to the spring elasticity on the side shifting mechanism 3 on one side. When the pushing block 6 moves upward, the side shifting mechanism 3 is synchronously shifted to the direction away from the injection molded product 4 under the inclined first guide surface 61 and the elastic action of the spring. After demolding is completed, the pushing block 6 moves downward to reset, and the side shifting mechanism 3 is reset in the same way. This structure design makes the pushing block 6 move upward and downward to drive the side mold mechanism 3 to move left and right. The upward movement of the pushing block 6 and the upward movement of the main ejector mechanism 7 are the same power device. Without additional power device arranged laterally, the left and right forces can be exerted on the side shifting structure 6. The manufacturing and production costs are greatly reduced, the production efficiency is improved, and the failure rate is reduced.

[0040] Further, as shown inFigures 7-9 As shown, the first guide surface 61 and the second guide surface 35 are provided with a first wear-resistant block 62, and the contact surface between the bottom of the side shift mechanism 3 and the top of the upper die 1 is provided with a second wear-resistant block 11, so that when the push block 6 and the side shift mechanism 3 move relatively, on the one hand, the wear of the structure outside can be reduced, and on the other hand, the heat generated by the relative movement can be reduced, so that the temperature of the structure is not too high to affect the normal operation of the mold.

[0041] Specifically, as shown in the drawings, Figures 7-9 In an example of the utility model, the side die mechanism 3 is provided with an inclined groove 36, the push block 6 is provided with an inclined column 63, the inclined column 63 is slidingly connected in the inclined groove 36, the inclination angle of the inclined groove 36 is the same as the inclination angle of the second guide surface 35, the design of the inclined groove 36 and the inclined column 63 has the same effect as the design of the first guide surface 61 and the second guide surface 35, and on the other hand, the push block 6 and the side shift mechanism 3 are connected, without this design, the two may fall off when they move relatively for a long time, and the inclined groove 36 and the inclined column 63 reduce the probability of occurrence of the safety hazard.

[0042] Specifically, as shown in the drawings, Figures 10-11 In an example of the utility model, the side die mechanism 3 is provided with a cooling pipeline 37 which has a cooling effect on the side die mechanism 3, one side of the side die mechanism 3 is provided with a cooling head 38 which is in communication with the cooling pipeline 37, the cooling head 38 is provided with a water inlet hole and a water outlet hole, and the cooling liquid or water enters the cooling pipeline 37 from the water inlet hole, exchanges heat with the side shift mechanism 3, and then comes out from the water outlet hole, so that the temperature of the side shift mechanism 3 is greatly reduced due to the heat generated by friction or the heat transferred by the injection molded product.

[0043] The working principle of the utility model is described in detail as follows:

[0044] When the mold is closed, the upper mold 1 is closed with the lower mold 2, the side mold mechanism 3 is pressed by the push block 6, the protruding part 322 of the demolding block 32 is embedded in the lateral structure (such as a through hole or a buckle) of the injection molded product 4, after the injection is completed, the upper mold 1 drives the push block 6 to move upwards during the mold opening process, the first guide surface 61 of the push block 6 interacts with the second guide surface 35 of the side mold mechanism 3, drives the side mold mechanism 3 to move laterally away from the product, the side moving block 31 cooperates with the inclined surface one 3111 and the inclined surface two 321 of the demolding block 32, forces the demolding block 32 to move downwards along the guide groove 34, makes the protruding part 322 smoothly exit from the product 4, completes the lateral demolding, then the main ejection mechanism 7 ejects the product body, realizes the upward and downward demolding, in the reset stage, the push block 6 is pressed downwards, the side mold mechanism 3 reversely moves under the action of the spring, the demolding block 32 rises to the initial position along the guide groove 34 (cooperates with the inclined surface three 324 and the inclined surface four 331), the cooling liquid circulating in the cooling pipeline 37 continuously takes away the heat generated by the friction of the side mold mechanism 3, ensures that the temperature rise is controllable, the whole set of actions realizes multi-directional step-by-step demolding through mechanical linkage, and the efficiency and safety are considered.

[0045] The utility model discloses an innovation lies in: through the cooperation of side mold mechanism and main ejection mechanism, multi-directional step-by-step demolding is realized, the demolding damage risk of complex structure product is reduced significantly, and the yield is improved.

[0046] In addition, it should be understood that, although the present specification is described in the embodiments, not every embodiment contains only one independent technical scheme, the description mode of the specification is only for the sake of clarity, and the skilled person in the art should consider the specification as a whole, and the technical scheme in each embodiment can also be combined to form other embodiments that can be understood by the skilled person.

[0047] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A mold structure with lateral demolding, comprising an upper mold (1) and a lower mold (2) arranged to open and close to each other, at least one side of the upper mold (1) and the lower mold (2) being provided with a side mold mechanism (3), the upper mold (1), the lower mold (2) and the side mold mechanism (3) jointly enclosing a containing cavity (5) for containing an injection molded product (4), the side mold mechanism (3) comprising a side moving block (31) and a demolding block (32), the side moving block (31) being provided with an inclined surface one (311), the demolding block (32) being provided with an inclined surface two (321) corresponding to the inclined surface one (311); wherein the demolding block (32) being provided with a protruding portion (322) extending upward, at least part of the protruding portion (322) extending into the containing cavity (5); when the mold is opened, the side mold mechanism (3) moves sideways to move the side moving block (31) in a direction away from the injection molded product (4), driving the demolding block (32) to move downward, realizing the upper and lower demolding of the protruding portion (322) and the injection molded product (4).

2. The side-acting mold structure of claim 1, wherein The side mold mechanism (3) further comprises an inclined block (33) fixedly arranged at the bottom of the side moving block (31), the inclined block (33) and the side moving block (31) jointly enclosing a guide groove (34) containing at least part of the demolding block (32).

3. The side-acting mold structure of claim 2, wherein The demolding block (32) is provided with a guide portion (323) corresponding to the guide groove (34), the bottom of the guide portion (323) being provided with an inclined surface three (324), the inclined block (33) being provided with an inclined surface four (331) corresponding to the inclined surface three (324).

4. The side action mold configuration of claim 3 wherein, The guide groove (34) as a whole extends obliquely upward away from the injection molded product (4).

5. The side action mold configuration of claim 1 wherein, The top of the upper mold (1) is provided with a pushing block (6) corresponding to the side mold mechanism (3), the pushing block (6) being provided with a first guide surface (61), the side mold mechanism (3) being provided with a second guide surface (35) corresponding to the first guide surface (61).

6. The side action mold configuration of claim 5 wherein, A first wear-resistant block (62) is arranged between the first guide surface (61) and the second guide surface (35).

7. The side-acting mold structure of claim 6, wherein An inclined groove (36) is arranged in the side mold mechanism (3), an inclined column (63) is arranged on the pushing block (6), and the inclined column (63) is slidingly connected in the inclined groove (36).

8. The side-acting mold structure of claim 7, wherein The inclination angle of the inclined groove (36) is the same as the inclination angle of the second guide surface (35).

9. The side-acting mold structure of claim 1, wherein The side mold mechanism (3) is provided with a cooling pipeline (37) having a cooling effect on the side mold mechanism (3).

10. The side-acting mold structure of claim 9, wherein One side of the side mold mechanism (3) is provided with a cooling head (38) in communication with the cooling pipeline (37).

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