Guiding type core-pulling injection mold

Abstract

The utility model discloses a guide type core-pulling injection mold, which comprises a movable mold assembly, a fixed mold assembly and a side guide assembly, the movable mold assembly comprises a movable mold seat, a movable mold plate, a movable mold core, a sliding block and a side core-pulling mold, and the fixed mold assembly comprises a fixed mold plate and a fixed mold seat which are sequentially arranged. The side guiding assembly comprises a guiding seat, a guiding rod, a sliding rod and a guiding plate, the guiding seat is fixed to the movable mold plate and arranged above the sliding block in a protruding mode, the guiding rod is longitudinally fixed to the top of the sliding block and penetrates through the guiding seat upwards, the sliding rod is vertically fixed to the top of the guiding rod, the guiding rod is parallel to the fixed mold plate, and the guiding plate is arranged on the guiding seat. And the guide plate is vertically fixed on the fixed mold plate and is provided with a guide groove which is inclined upwards from the fixed mold plate to the movable mold plate, and the guide groove corresponds to the two ends of the sliding rod. According to the utility model, a precise matching structure of the current inclined guide pillar and the inclined hole is saved, and an external combined structure is adopted, so that the assembly and disassembly are convenient, the maintenance is convenient and the cost is low.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a guided core-pulling injection mold. Background Art

[0002] In the process of plastic injection molding, injection molds are indispensable. The injection mold consists of a fixed mold and a movable mold. After the molds are closed, the molten plastic is input into the mold cavity composed of the fixed mold and the movable mold, and the plastic parts are cooled and solidified. Finally, the mold is opened to take out the plastic parts.

[0003] Some injection molded parts have holes or grooves on their sides. It is necessary to add a side core-pulling mold on the basis of the mold core to form the holes or grooves on the side of the injection molded parts. In order to facilitate the demoulding of the injection molded parts, the side core-pulling mold needs to be moved outward after the mold is opened to avoid obstruction to the demoulding of the injection molded parts.

[0004] In the prior art, the inclined guide pin is often used to cooperate with the inclined hole in the slider, and the slider is slid during the mold closing and opening process, and the slider is used to drive the movement of the side core pulling mold. The inclined guide pin and the inclined hole in the slider are precisely matched, which requires high mold processing accuracy, increases the production cost of the mold, and the contact between the inclined guide pin and the inside of the inclined hole in the slider is sliding friction, which is easy to wear, resulting in movement error of the side core pulling mold, and increasing maintenance costs. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide a guided core-pulling injection mold, which saves the precise matching structure of the inclined guide column and the inclined hole, adopts an external combined structure, is easy to load and unload, convenient to maintain, and has low cost.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a guided core-pulling injection mold, including a movable mold assembly, a fixed mold assembly and a side guide assembly, the movable mold assembly includes a movable mold seat, a movable mold plate, a movable mold core, a slider and a side core-pulling mold, the movable mold seat, the movable mold plate and the movable mold core are arranged in sequence, the slider is longitudinally slidably arranged on the movable mold plate and is located above the movable mold core, the side core-pulling mold is fixed to the bottom of the slider, the fixed mold assembly includes a fixed mold plate and a fixed mold seat arranged in sequence, the movable mold plate and the fixed mold plate are relatively arranged, the side guide assembly includes a guide seat, a guide rod, a slide bar and a guide plate, the guide seat is fixed on the movable mold plate and protrudes above the slide bar, the guide rod is longitudinally fixed to the top of the slide bar and upwardly penetrates the guide seat, the slide bar is vertically fixed to the top of the guide rod, and the guide rod is parallel to the fixed mold plate, the guide plate is vertically fixed to the fixed mold plate, and a guide groove obliquely upward from the fixed mold plate to the movable mold plate is provided on the guide plate, and the guide groove corresponds to the two ends of the slide bar.

[0007] In a preferred embodiment of the present invention, two guide rods are arranged in the longitudinal plane.

[0008] In a preferred embodiment of the utility model, the tops of the two guide rods are fixed to the bottom of the same slide rod.

[0009] In a preferred embodiment of the present invention, longitudinally distributed running wheels are respectively provided at both ends of the slide bar.

[0010] In a preferred embodiment of the present invention, two guide plates are arranged in parallel.

[0011] In a preferred embodiment of the present invention, the guide grooves of the two guide plates are arranged corresponding to the two walking wheels.

[0012] In a preferred embodiment of the present invention, the longitudinal movement stroke of the slider is the same as the movement stroke of the travel wheel in the guide groove.

[0013] The beneficial effects of the utility model are as follows: the guided core-pulling injection mold pointed out by the utility model saves the precise matching structure of the inclined guide column and the inclined hole at present, adopts an external combined structure, is easy to load and unload, convenient to maintain, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0015] Figure 1 The utility model is a structural schematic diagram of a preferred embodiment of a guided core-pulling injection mold. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1 , the utility model embodiment includes:

[0018] A guided core-pulling injection mold comprises a movable mold component, a fixed mold component and a side guide component.

[0019] The movable mold assembly includes a movable mold base 1, a movable mold plate 2, a movable mold core 3, a slider 4 and a side core-pulling mold 5.

[0020] The movable mold base 1, the movable mold plate 2 and the movable mold core 3 are arranged in sequence, the slider 4 is longitudinally slidably arranged on the movable mold plate 2 and is located above the movable mold core 3, the side core pulling mold 5 is fixed to the bottom of the slider 4, and the fixed mold assembly includes a fixed mold plate 6 and a fixed mold base 7 arranged in sequence, and the movable mold plate 2 and the fixed mold plate 6 are relatively arranged to realize the mold closing operation.

[0021] The side guide assembly includes a guide seat 8 , a guide rod 9 , a slide rod 10 and a guide plate 11 .

[0022] The guide seat 8 is fixed on the movable plate 2 and protrudes above the slider 4. The guide rod 9 is longitudinally fixed on the top of the slider 4 and penetrates the guide seat 8 upward, so that when the slider 4 moves longitudinally on the movable plate 2, the guide rod 9 moves longitudinally and linearly on the guide seat 8 to ensure the movement accuracy. Two guide rods 9 are arranged on the longitudinal plane to improve the balance of the movement guide of the slider 4.

[0023] The slide bar 10 is vertically fixed on the top of the two guide bars 9 to ensure stable fixation, and the guide bars 9 are parallel to the fixed template 6. The slide bar 10 is used to drive the slider 4 to move longitudinally.

[0024] Both ends of the slide bar 10 are respectively provided with longitudinally distributed running wheels 12 to reduce friction during movement and reduce the problem of precision degradation caused by wear.

[0025] The guide plates 11 are provided in parallel with two pieces and fixed vertically on the fixed template 6 . The guide plates 11 are provided with guide grooves 13 obliquely upward from the fixed template 6 to the movable template 2 . The guide grooves 13 of the two guide plates 11 are provided correspondingly to the two walking wheels 12 .

[0026] When the movable mold plate 2 moves toward the fixed mold plate 6 , the traveling wheel 12 moves along the guide groove 13 , and the slider 4 moves toward the movable mold core 3 , and vice versa.

[0027] The longitudinal movement stroke of the slide block 4 is the same as the movement stroke of the travel wheel 12 in the guide groove 13, thereby ensuring normal mold closing and injection molding operation.

[0028] In summary, the guided core-pulling injection mold pointed out in the utility model saves the precise matching structure of the inclined guide column and the inclined hole at present, adopts an external combined structure, is easy to load and unload, convenient to maintain, and has low cost.

[0029] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A guided core-pulling injection mold, characterized in that: The invention comprises a movable mold assembly, a fixed mold assembly and a side guide assembly, wherein the movable mold assembly comprises a movable mold seat, a movable mold plate, a movable mold core, a slider and a side core-pulling mold, wherein the movable mold seat, the movable mold plate and the movable mold core are arranged in sequence, the slider is longitudinally slidably arranged on the movable mold plate and is located above the movable mold core, the side core-pulling mold is fixed to the bottom of the slider, the fixed mold assembly comprises a fixed mold plate and a fixed mold seat arranged in sequence, the movable mold plate and the fixed mold plate are relatively arranged, the side guide assembly comprises a guide seat, a guide rod, a sliding rod and a guide plate, the guide seat is fixed on the movable mold plate and protrudes above the slider, the guide rod is longitudinally fixed on the top of the slider and upwardly penetrates the guide seat, the sliding rod is vertically fixed on the top of the guide rod, and the guide rod is parallel to the fixed mold plate, the guide plate is vertically fixed on the fixed mold plate, and a guide groove obliquely upward from the fixed mold plate to the movable mold plate is provided on the guide plate, and the guide groove corresponds to the two ends of the sliding rod.

2. The guided core-pulling injection mold according to claim 1, characterized in that: Two guide rods are arranged in the longitudinal plane.

3. The guided core-pulling injection mold according to claim 2, characterized in that: The tops of the two guide rods are fixed to the bottom of the same slide rod.

4. The guided core-pulling injection mold according to claim 1, characterized in that: Both ends of the slide bar are respectively provided with longitudinally distributed walking wheels.

5. The guided core-pulling injection mold according to claim 4, characterized in that: Two guide plates are arranged in parallel.

6. The guided core-pulling injection mold according to claim 5, characterized in that: The guide grooves of the two guide plates are arranged correspondingly to the two walking wheels.

7. The guided core-pulling injection mold according to claim 6, characterized in that: The longitudinal movement stroke of the slide block is the same as the movement stroke of the travel wheel in the guide groove.

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