Injection mold with replaceable mold core

Abstract

The utility model relates to the technical field of injection molding, in particular to an injection mold with a replaceable mold core, which comprises an upper mold and a lower mold which are matched with each other, the upper mold is provided with an upper mounting groove, and an upper mold core is detachably arranged in the upper mounting groove; the lower die is provided with a lower mounting groove, a lower die core is detachably arranged in the lower mounting groove, and the upper die core is matched with the lower die core; the upper mold and the lower mold are each provided with a fixing structure, and the fixing structures are used for preventing the upper mold core from disengaging from the upper mounting groove or preventing the lower mold core from disengaging from the lower mounting groove. Through the arrangement of the fixing structure, the upper mold core is prevented from being separated from the upper mounting groove or the lower mold core is prevented from being separated from the lower mounting groove, the mold cores and the mounting grooves do not need to be fixedly locked through structures such as screws, and the disassembly and assembly efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field especially a kind of mould for injection molding with replaceable mould core. BACKGROUND

[0002] The mould for injection molding is usually produced in whole set, resulting in higher cost of mould. In order to save cost, the mould structure with detachable mould core is currently provided, i.e. when staff needs to adjust the product to be produced, the adjustment can be realized by replacing the mould core only, saving cost and improving efficiency.

[0003] However, the mould with replaceable mould core currently has the following disadvantages: the mould core needs to be fixed by very many screws and other structures, resulting in long time spent in disassembling and assembling the mould core. SUMMARY

[0004] To solve the above technical problems, the utility model provides a kind of mould for injection molding with replaceable mould core, and the structure used for fixing mould core is optimized, which is beneficial to improve the efficiency of disassembly and assembly.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides a kind of mould for injection molding with replaceable mould core, including the upper die and lower die that cooperate with each other, the upper die is equipped with upper installation groove, and the upper installation groove is detachably provided with upper mould core;The lower die is equipped with lower installation groove, and the lower installation groove is detachably provided with lower mould core, and the upper mould core and the lower mould core cooperate with each other;The upper die and the lower die are respectively provided with fixed structure, and the fixed structure is used to prevent the upper mould core from separating from the upper installation groove / used to prevent the lower mould core from separating from the lower installation groove.

[0007] Further, one side of the upper installation groove and one side of the lower installation groove are respectively provided with side opening, the fixed structure includes baffle and at least two screws, the baffle is used to cover side opening to prevent the upper mould core / lower mould core from separating from side opening, and the baffle is fixed with the upper die / lower die by screw.

[0008] Further, the top of the upper installation groove is communicated with upper positioning groove, and the top of the upper mould core is provided with upper positioning part, the width of the upper positioning groove is greater than the width of the upper installation groove, and the upper positioning part is installed in the upper installation groove.

[0009] Further, the upper mould core and the upper positioning part are fixed by upper screw.

[0010] Further, the bottom of the lower installation groove is communicated with lower positioning groove, and the bottom of the lower mould core is provided with lower positioning part, the width of the lower positioning groove is greater than the width of the lower installation groove, and the lower positioning part is installed in the lower installation groove.

[0011] Furthermore, the lower mold core and the lower positioning part are fixed together by a lower screw.

[0012] Furthermore, the lower mold is equipped with a gas spring, and the lower positioning part is provided with a positioning hole, with the output end of the gas spring inserted into the positioning hole.

[0013] The beneficial effects of this utility model are as follows: By setting up a fixing structure, this utility model prevents the upper mold core from detaching from the upper mounting groove or the lower mold core from detaching from the lower mounting groove, without the need to use screws or other structures to lock the mold core to the mounting groove, which helps to improve the efficiency of disassembly and assembly. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the present invention.

[0015] Fig. 2 This is a schematic diagram of the present invention with the fixing structure hidden.

[0016] Fig. 3 This is a schematic diagram of the upper mold core and the lower mold core of this utility model.

[0017] Reference numerals: 1—Upper mold, 2—Lower mold, 3—Upper mold core, 4—Lower mold core, 5—Fixed structure, 6—Side opening, 11—Upper mounting groove, 12—Upper positioning groove, 21—Lower mounting groove, 22—Lower positioning groove, 24—Gas spring, 31—Upper positioning part, 32—Upper screw, 41—Lower positioning part, 42—Positioning hole, 43—Lower screw, 71—Baffle, 72—Screw. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0019] like Figs. 1 to 3 As shown, the present invention provides an injection mold with replaceable mold cores, comprising an upper mold 1 and a lower mold 2 that cooperate with each other. The upper mold 1 is provided with an upper mounting groove 11, in which an upper mold core 3 is detachably disposed. The lower mold 2 is provided with a lower mounting groove 21, in which a lower mold core 4 is detachably disposed. The upper mold core 3 and the lower mold core 4 cooperate with each other. The upper mold 1 and the lower mold 2 are respectively provided with a fixing structure 5, which is used to prevent the upper mold core 3 from disengaging from the upper mounting groove 11 / to prevent the lower mold core 4 from disengaging from the lower mounting groove 21.

[0020] When the die core needs to be replaced, the fixed structure 5 is first disassembled, and then the upper die core 3 can be directly disassembled from the upper mounting groove 11 and replaced. After replacement, the fixed structure 5 is reinstalled on the upper die 1, and the upper die core 3 is stopped by the fixed structure 5, so that the upper die core 3 does not shift in the upper mounting groove 11, achieving the effect of replacement and stable use.

[0021] In this embodiment, one side of the upper mounting groove 11 and one side of the lower mounting groove 21 are respectively provided with a side opening 6, and the fixed structure 5 includes a baffle 71 and at least two screws 72. The baffle 71 is used to cover the side opening 6 to prevent the upper die core 3 / lower die core 4 from being separated from the side opening 6, and the baffle 71 is fixed to the upper die 1 / lower die 2 by the screws 72.

[0022] That is, the upper die core 3 and the lower die core 4 are loaded / removed from the side opening 6 into / out of the upper mounting groove 11 and the lower mounting groove 21, and the fixed structure 5 covers the upper mounting groove 11 / lower mounting groove 21 by the baffle 71 to prevent the upper die core 3 from being separated from the upper mounting groove 11 and the lower die core 4 from being separated from the lower mounting groove 21. Only when the size of the die core is basically consistent with the size of the mounting groove during production, the die core will not shift in the mounting groove under the action of the fixed structure 5, achieving the effect of reliable fixation.

[0023] In this embodiment, the top of the upper mounting groove 11 is communicated with an upper positioning groove 12, the top of the upper die core 3 is provided with an upper positioning part 31, the width of the upper positioning groove 12 is greater than the width of the upper mounting groove 11, and the upper positioning part 31 is arranged in the upper mounting groove 11. That is, the upper die core 3 and the upper positioning part 31 form a "T" shaped structure, and the upper positioning part 31 is arranged in the upper positioning groove 12, achieving the positioning effect of the upper die core 3, so that the upper die core 3 will not be separated from the upper mounting groove 11 under the action of gravity, thereby ensuring the stability of the installation.

[0024] Specifically, the upper die core 3 and the upper positioning part 31 are fixed by an upper screw 32. At least two upper positioning parts 31 can be provided, one of which is arranged in the upper die 1 for use, and the other is fixed with the upper screw 32 with the upper die core 3 to be replaced, so that when the upper die core 3 is replaced, the upper die core 3 and the upper positioning part 31 can be directly disassembled and replaced together, which is conducive to improving the replacement efficiency.

[0025] In this embodiment, the bottom of the lower mounting groove 21 is communicated with a lower positioning groove 22, the bottom of the lower die core 4 is provided with a lower positioning part 41, the width of the lower positioning groove 22 is greater than the width of the lower mounting groove 21, and the lower positioning part 41 is arranged in the lower mounting groove 21.

[0026] The lower positioning part 41 and the lower die core 4 form an inverted "T" shaped structure, and the lower positioning part 41 mainly plays a role in positioning and installation.

[0027] In actual use, the lower die core 4 is fixed with the lower positioning part 41 through the lower screw 43, which has the same effect as the upper die core 3 cooperating with the upper mounting part, and thus will not be described here.

[0028] Specifically, the lower die 2 is provided with the gas spring 24, the lower positioning part 41 is provided with the positioning hole 42, and the output end of the gas spring 24 is inserted into the positioning hole 42. That is, before the lower die core 4 is installed, the gas spring 24 needs to be controlled to retract first, and then after the lower die core 4 is installed, the gas spring 24 is controlled to rise, so as to realize the positioning effect of the lower positioning part 41 by inserting the gas spring 24 into the positioning hole 42. In addition, the buffering performance of the gas spring 24 can offset the impact force applied by the upper die 1 to the lower die 2 when the mold is closed, thereby protecting the safety of the mold. In addition, the elastic force keeps the lower die core 4 always having an upward movement trend, so as to ensure the reliability of the mold closing.

[0029] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as the above preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment within the scope of the technical solution of the present application are all within the scope of the present application.

Claims

1. An injection mold with interchangeable mold cores, comprising an upper mold and a lower mold that fit together, characterized in that: The upper mold is provided with an upper mounting groove, in which an upper mold core is detachably installed; the lower mold is provided with a lower mounting groove, in which a lower mold core is detachably installed, and the upper mold core and the lower mold core cooperate with each other; the upper mold and the lower mold are respectively provided with a fixing structure, which is used to prevent the upper mold core from disengaging from the upper mounting groove / to prevent the lower mold core from disengaging from the lower mounting groove.

2. The injection mold with replaceable mold core according to claim 1, characterized in that: The upper mounting groove has a side opening on one side and the lower mounting groove has a side opening on the other side. The fixing structure includes a baffle and at least two screws. The baffle is used to cover the side opening to prevent the upper mold core / lower mold core from detaching from the side opening. The baffle is fixed to the upper mold / lower mold by screws.

3. The injection mold with replaceable mold core according to claim 1, characterized in that: The top of the upper mounting groove is connected to the upper positioning groove, and the top of the upper mold core is provided with an upper positioning part. The width of the upper positioning groove is greater than the width of the upper mounting groove, and the upper positioning part is installed in the upper mounting groove.

4. The injection mold with replaceable mold core according to claim 3, characterized in that: The upper mold core and the upper positioning part are fixed together by upper screws.

5. The injection mold with replaceable mold core according to claim 1, characterized in that: The bottom of the lower mounting groove is connected to a lower positioning groove, and the bottom of the lower mold core is provided with a lower positioning part. The width of the lower positioning groove is greater than the width of the lower mounting groove, and the lower positioning part is installed in the lower mounting groove.

6. The injection mold with replaceable mold core according to claim 5, characterized in that: The lower mold core and the lower positioning part are fixed together by a screw.

7. The injection mold with replaceable mold core according to claim 5, characterized in that: The lower mold is equipped with a gas spring, and the lower positioning part is provided with a positioning hole, with the output end of the gas spring inserted into the positioning hole.

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