Inner hole demolding mechanism and mold

Abstract

The utility model discloses an inner hole demoulding mechanism and a mould, which comprise a first slide block, a first movable block and a second movable block, the first movable block and the first slide block synchronously move, the second movable block is movably arranged on the first slide block, the first movable block is provided with an inclined surface along a first direction, the second movable block is attached to the inclined surface, and the inclined surface is provided with a first hole; the second movable block is provided with a boss; the second sliding block is provided with a driving part, the first sliding block is in sliding connection with the second sliding block, the second sliding block is provided with a first guide column, the first guide column obliquely penetrates through the first sliding block in the second direction, the driving part abuts against the second movable block, and the second direction is perpendicular to the first direction. Through relative sliding between the first sliding block and the second sliding block, the driving part drives the second movable block to extend outwards, the second sliding block slides and deviates along the inclined plane and is separated from the inner hole of the injection-molded part, and then demolding is performed, so that the inner hole of the injection-molded part is prevented from being damaged, the production stability is improved, and the quality of the injection-molded part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an inner hole demoulding mechanism and a mold. Background Art

[0002] Plastic parts with inner holes are formed by injection molding the slider on the mold core. The boss on the slider abuts the inner hole. When the mold is opened, the boss on the slider can easily damage the inner hole, affecting the quality of the injection molded part. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an inner hole demoulding mechanism and a mold, which can avoid damaging the inner hole, improve the demoulding success rate, and improve the quality of the injection molded parts.

[0004] According to the inner hole demolding mechanism of the first aspect embodiment of the present utility model, it includes: a first slider, which is provided with a first movable block and a second movable block, the first movable block moves synchronously with the first slider, the second movable block is movably set on the first slider, the first movable block is provided with an inclined surface along the first direction, the second movable block is in contact with the inclined surface, and the second movable block is provided with a boss; the second slider is provided with a driving part, the first slider is slidably connected to the second slider, the second slider is provided with a first guide column, the first guide column obliquely passes through the first slider along the second direction, the driving part abuts against the second movable block, and the second direction is perpendicular to the first direction.

[0005] According to the inner hole demoulding mechanism of the embodiment of the first aspect of the utility model, it has at least the following beneficial effects: through the relative sliding between the first slider and the second slider, the driving part drives the second movable block to extend outward, the second slider slides and deflects along the inclined surface, separates from the inner hole of the injection molded part, and then demoulds, avoiding damage to the inner hole of the injection molded part, improving production stability, and improving the quality of the injection molded part.

[0006] According to some embodiments of the present invention, the inclined surface is provided with a guide portion, the second movable block is provided with a sliding groove matching the guide portion, and the guide portion is slidably connected to the sliding groove.

[0007] According to some embodiments of the present invention, the side walls on both sides of the symmetrical slide groove are protruded to form a first limiting portion, the guide portion is provided with a second limiting portion, the guide portion is inserted into the slide groove, and the first limiting portion abuts against the second limiting portion.

[0008] According to some embodiments of the present invention, the first sliding block is provided with a second guide column, the second movable block is provided with an elongated hole along the first direction, and the second guide column passes through the elongated hole.

[0009] According to some embodiments of the present invention, the first slider includes a first positioning block and a second positioning block, the two ends of the second guide column are respectively plugged into the first positioning block and the second positioning block, and the first positioning block and the second positioning block are connected by screws.

[0010] According to some embodiments of the present invention, the second positioning block is provided with a positioning hole, a third limiting portion is provided in the positioning hole, the screw is provided with a screw head, the screw passes through the positioning hole and is threadedly connected to the first positioning block, and the screw head abuts against the third limiting portion.

[0011] According to some embodiments of the present invention, the first positioning block is provided with a card slot, and the first movable block is provided with a card block matching the card slot, and the card block is plugged into and fitted with the card slot.

[0012] The mold according to the embodiment of the second aspect of the present invention includes the inner hole demoulding mechanism described in the embodiment of the first aspect of the present invention.

[0013] According to the mold of the embodiment of the second aspect of the utility model, there are at least the following beneficial effects: through the relative sliding between the first slider and the second slider, the driving part drives the second movable block to extend outward, the second slider slides and deflects along the inclined surface, separates from the inner hole of the injection molded part, and then demolds, thereby avoiding damage to the inner hole of the injection molded part, improving production stability, and improving the quality of the injection molded part.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the inner hole demoulding mechanism of the first embodiment of the utility model;

[0017] Figure 2 This is an exploded view of the inner hole demoulding mechanism of the first embodiment of the utility model.

[0018] Description of reference numerals:

[0019] First slider 100, first guide post 110, first positioning block 121, second positioning block 122, screw 123, second guide post 124, positioning hole 125, screw head 126, first movable block 131, second movable block 132, elongated hole 133, first limiting portion 134, sliding groove 135, guide portion 136, second limiting portion 137, and boss 138;

[0020] The second slider 200 and the driving unit 210 . DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figure 1 and Figure 2The inner hole demolding mechanism of the first embodiment of the utility model includes: a first slider 100, which is provided with a first movable block 131 and a second movable block 132. The first movable block 131 moves synchronously with the first slider 100, and the second movable block 132 is movably provided on the first slider 100. The first movable block 131 is provided with an inclined surface along the first direction, and the second movable block 132 is in contact with the inclined surface, and the second movable block 132 is provided with a boss; the second slider 200 is provided with a driving part 210, the first slider 100 is slidably connected to the second slider 200, and the second slider 200 is provided with a first guide column 110. The first guide column 110 passes through the first slider 100 obliquely along the second direction, and the driving part 210 abuts against the second movable block 132, and the second direction is perpendicular to the first direction.

[0026] During injection molding, the inner hole of the injection molded part is formed by the boss 138. Through the relative sliding between the first slider 100 and the second slider 200, the driving unit 210 drives the second movable block 132 to extend outward, and the second slider 200 slides and deflects along the inclined surface to separate the boss 138 from the inner hole of the injection molded part, and then demolding is carried out to prevent the boss 138 from damaging the inner hole of the injection molded part, thereby improving production stability and the quality of the injection molded part.

[0027] It is understood that the inclined surface is provided with a guide portion 136, and the second movable block 132 is provided with a slide groove 135 matching the guide portion 136, and the guide portion 136 is slidably connected to the slide groove 135. The cooperation between the guide portion 136 and the slide groove 135 improves the smoothness of the second movable block 132.

[0028] It is understood that the side walls of the chute 135 are symmetrically protruding with first stoppers 134, and the guide portion 136 is provided with a second stopper 137. When the guide portion 136 is inserted into the chute 135, the first stopper 134 and the second stopper 137 abut. The first stoppers 134 of the symmetrical side walls cooperate to give the chute 135 a T-shaped cross-section. When the guide portion 136 is inserted into the chute 135, the first stopper 134 and the second stopper 137 abut, preventing the guide portion 136 from separating from the chute 135 and enhancing the connection stability between the first movable block 131 and the second movable block 132.

[0029] It is understood that the first slider 100 is provided with a second guide post 124, and the second movable block 132 is provided with an elongated hole 133 along the first direction, and the second guide post 124 passes through the elongated hole 133. The second guide post 124 passes through the elongated hole 133, driving the first slider 100 to move along the first guide post 110, causing the second movable block 132 to rotate around the second guide post 124, causing the second movable block 132 to deflect inward, causing the boss on the second movable block 132 to separate from the inner hole.

[0030] Specifically, the first slider 100 includes a first positioning block 121 and a second positioning block 122. The ends of the second guide post 124 are respectively plugged into the first positioning block 121 and the second positioning block 122. The first positioning block 121 and the second positioning block 122 are connected by screws 123. The cooperation between the first positioning block 121 and the second positioning block 122 facilitates installation of the second guide post 124 and facilitates maintenance.

[0031] It is understood that the second positioning block 122 is provided with a positioning hole 125, a third limiting portion is provided in the positioning hole 125, and the screw 123 is provided with a screw head 126. The screw 123 passes through the positioning hole 125 and is threadedly connected to the first positioning block 121, and the screw head 126 abuts the third limiting portion. When the screw 123 is rotated, the screw 123 is threadedly connected to the first positioning block 121, and the screw 123 is tightened, the screw head 126 abuts the third limiting portion, and the first positioning block 121 and the second positioning block 122 are stably combined, thereby simplifying the structure and improving assembly efficiency.

[0032] It is understood that the first positioning block 121 has a slot, and the first movable block 131 is provided with a block that matches the slot, and the block and the slot are plugged in and engaged. When the block and the slot are plugged in and engaged, when the first slider 100 moves, it drives the first movable block 131 to move, achieving synchronous movement of the first slider 100 and the first movable block 131.

[0033] The mold of the second embodiment of the present invention includes the inner hole demolding mechanism of the first embodiment of the present invention. Through the relative sliding between the first slider 100 and the second slider 200, the driving unit 210 drives the second movable block 132 to extend outward, and the second slider 200 slides and deflects along the inclined surface, separating from the inner hole of the injection molded part before demolding. This avoids damage to the inner hole of the injection molded part, improves production stability, and enhances the quality of the injection molded part.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Inner hole demoulding mechanism, characterized in that: include: A first slider is provided with a first movable block and a second movable block, the first movable block moves synchronously with the first slider, the second movable block is movably provided on the first slider, the first movable block is provided with an inclined surface along a first direction, the second movable block is in contact with the inclined surface, and the second movable block is provided with a boss; The second slider is provided with a driving part, the first slider is slidably connected to the second slider, the second slider is provided with a first guide column, the first guide column passes through the first slider obliquely along the second direction, the driving part abuts against the second movable block, and the second direction is perpendicular to the first direction.

2. The inner hole demoulding mechanism according to claim 1, characterized in that: The inclined surface is provided with a guide portion, the second movable block is provided with a sliding groove matching the guide portion, and the guide portion is slidably connected to the sliding groove.

3. The inner hole demoulding mechanism according to claim 2, characterized in that: The side walls on both sides of the chute are symmetrically protruded to form a first limiting portion, the guide portion is provided with a second limiting portion, the guide portion is inserted into the chute, and the first limiting portion abuts against the second limiting portion.

4. The inner hole demoulding mechanism according to claim 1, characterized in that: The first sliding block is provided with a second guide post, the second movable block is provided with an elongated hole along the first direction, and the second guide post passes through the elongated hole.

5. The inner hole demoulding mechanism according to claim 4, characterized in that: The first sliding block includes a first positioning block and a second positioning block. Both ends of the second guide column are respectively plugged into the first positioning block and the second positioning block. The first positioning block and the second positioning block are connected by screws.

6. The inner hole demoulding mechanism according to claim 5, characterized in that: The second positioning block is provided with a positioning hole, a third limiting portion is provided in the positioning hole, the screw is provided with a screw head, the screw passes through the positioning hole and is threadedly connected to the first positioning block, and the screw head abuts against the third limiting portion.

7. The inner hole demoulding mechanism according to claim 5, characterized in that: The first positioning block is provided with a card slot, and the first movable block is provided with a card block matching the card slot, and the card block is plugged into and matched with the card slot.

8. A mold, characterized in that The invention comprises the inner hole demoulding mechanism according to any one of claims 1 to 7.

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