A slider diving gate structure capable of automatic ejection and application method

Abstract

The application relates to a slider submarine gate structure capable of being automatically ejected and an application method, which comprises a front mold and a rear mold, a main flow channel is arranged on the front mold, a slider capable of sliding horizontally is arranged on the rear mold, two branch flow channels connected with the main flow channel are arranged on the slider, and a flow channel insert matched with the branch flow channels is arranged on the slider; an inclined guide column for driving the slider to move is arranged on the front mold, and an inclined guide groove matched with the inclined guide column is arranged on the slider; the injection mold of the application is applied, the insert plays its own function and also plays the role of prolonging the ejector rod, the slider is used not only for separating the flow channels but also for locking and unlocking the state of the insert and adjusting the relative position of the insert and the ejector rod, the smooth injection is guaranteed, the interference problem existing when the insert and the ejector rod are arranged can be solved, the structure is reasonable and compact, the automation degree is high, and no additional manual intervention is needed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molds, in particular to a sliding block submarine gate structure capable of automatic ejection and an application method. BACKGROUND

[0002] In actual application, injection molds are used to process plastic products with high appearance surface requirements, and submarine gates are used for injection molding. After processing, a relatively long ejector rod needs to be designed to eject the submarine gate. For example, a submarine gate glue inlet structure based on an inclined ejector rod is disclosed in Chinese application No. 201922266151.2. The gate ejector rod has a large stroke, and the overall mold structure is relatively complex. If the gate insert needs to be set for injection molding, the position of the ejector rod and the insert may interfere with each other. The existing submarine gate structure cannot solve the problem. Therefore, a sliding block submarine gate structure capable of automatic ejection and an application method are needed. SUMMARY

[0003] The application aims to solve the above-mentioned defects in the prior art, and provides a sliding block submarine gate structure capable of automatic ejection and an application method.

[0004] The technical scheme adopted by the application to solve the technical problem is as follows:

[0005] The application discloses a sliding block submarine gate structure capable of automatic ejection, which comprises a front mold and a rear mold. The front mold is provided with a main flow channel. The rear mold is provided with a sliding block which slides horizontally. The sliding block is provided with two branch flow channels connected with the main flow channel and a flow channel insert matched with the branch flow channels. The front mold is provided with an inclined guide column for driving the sliding block to move. The sliding block is provided with an inclined guide groove matched with the inclined guide column. The flow channel insert comprises three insert rods which are distributed in a triangular shape. The upper ends of the three insert rods are provided with first steps matched with the branch flow channels. The sliding block is provided with three movable grooves matched with the insert rods. The lower ends of the insert rods are formed with second steps in an L shape. The inner walls of the movable grooves are movably provided with limiting blocks for limiting the second steps. When the mold is closed, the limiting blocks lock the corresponding insert rods. When the mold is opened, the sliding block moves by a first set stroke, and then drives the limiting blocks to move by a second set stroke to unlock the insert rods. The application further comprises three ejector pins corresponding to the insert rods respectively. The ejector pins are used to provide supporting force for the insert rods and to eject the insert rods.

[0006] The sliding block submarine gate structure capable of automatic ejection comprises three second steps. The lateral edges of the three second steps are distributed in a T shape. The length direction of the longitudinal edges of the T shape is consistent with the sliding direction of the sliding block.

[0007] The automatic ejection sliding block submarine gate structure, wherein the limiting block is in the form of a vertical plate, the sliding block is provided with a movable hole for the transverse movement of the limiting block, and the movable hole is connected with the corresponding movable slot and inclined guide slot.

[0008] The automatic ejection sliding block submarine gate structure, wherein a reset spring is arranged in the movable hole to reset the limiting block.

[0009] The automatic ejection sliding block submarine gate structure, wherein a driving block is arranged on the limiting block and extends into the inclined guide slot; when the mold is opened, the sliding block first moves a first set stroke, and the driving block is in a state of being pressed by the inclined guide column; when the driving block is separated from the state of being pressed by the inclined guide column, the limiting block is moved a second set stroke under the action of the reset spring to unlock the insert rod.

[0010] The automatic ejection sliding block submarine gate structure, wherein the cross section of the inclined guide column is in the form of a rectangle.

[0011] The automatic ejection sliding block submarine gate structure, wherein the two distribution channels are in the form of π, and the three first steps correspond to the three sides of the π.

[0012] An application method of the automatic ejection sliding block submarine gate structure, applied to the automatic ejection sliding block submarine gate structure, wherein the method comprises the following steps:

[0013] When the mold is closed, the three insert rods are supported by the corresponding ejector pins, the upper die is lowered, the sliding block is driven to slide laterally inward by the cooperation of the inclined guide column and the inclined guide slot, and the limiting block locks the corresponding insert rod; after the mold is closed, the upper die presses the upper end of the insert rod;

[0014] After the injection is completed, the mold is opened, the upper die is raised, the sliding block is driven to slide laterally outward by the cooperation of the inclined guide column and the inclined guide slot, the sliding block first moves a first set stroke to drive the flow channel to move away from the product, and then the limiting block moves a second set stroke to unlock the insert rod;

[0015] The ejector pin provides support for the insert rod during the opening and closing of the mold, and after the limiting block unlocks the insert rod, the insert rod is lifted, so that the flow channel is separated from the sliding block.

[0016] The beneficial effects of the present application are that: when the mold is closed, the three insert rods are supported by the corresponding ejector pins, the upper mold goes down, the slider is driven to slide laterally to the inside through the cooperation of the inclined guide pillar and the inclined guide groove, and the limiting block locks the corresponding insert rod; after the mold is closed, the upper mold holds the upper end of the insert rod; after the injection is completed, the mold is opened, the upper mold goes up, the slider is driven to slide laterally to the outside through the cooperation of the inclined guide pillar and the inclined guide groove, the slider first moves a first set stroke to drive the runner to move away from the product, and then the limiting block moves a second set stroke to unlock the insert rod; the ejector pin provides support to the insert rod during the mold opening and closing processes, and after the limiting block unlocks the insert rod during the mold opening, the insert rod is lifted, so that the runner is separated from the slider; the injection mold of the present application not only plays the function of the insert itself, but also plays the role of extending the ejector rod, the slider is used not only to separate the runner, but also to lock and unlock the state of the insert, and the relative position of the insert and the ejector rod is adjusted to ensure the smooth injection, so that the interference problem between the insert and the ejector rod during setting can be well solved, the structure is reasonable and compact, and the degree of automation is high, without the need for additional manual intervention. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the premise of not deviating from the concept of the present application:

[0018] Figure 1 is a cross-sectional view of a slide submarine gate structure capable of automatic ejection of a preferred embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a runner and runner insert cooperation structure of a slide submarine gate structure capable of automatic ejection of a preferred embodiment of the present application (partially showing a limiting block). DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0021] The slide submarine gate structure capable of automatic ejection of a preferred embodiment of the present application is shown in Figure 1 , as shown in Figure 2As shown, it comprises a front mold and a rear mold, the front mold is provided with a main runner, the rear mold is provided with a slider 1 which slides transversely, the slider 1 is provided with two branch runners 2 connected with the main runner and a runner insert 3 matched with the branch runner 2; the front mold is provided with an inclined guide column 4 which drives the slider 1 to move, the slider 1 is provided with an inclined guide groove 10 matched with the inclined guide column; the runner insert 3 comprises three insert rods 30 which are distributed in a triangular shape, the upper end of each of the three insert rods 30 is provided with a first step 300 matched with the branch runner 2; the slider 1 is provided with three movable grooves 11 matched with the insert rods 30, the lower end of the insert rod 30 is formed with an L-shaped second step 301, the inner wall of the movable groove 11 is movably provided with a limiting block 12 which limits the second step 301; when the mold is closed, the limiting block 12 locks the corresponding insert rod 30, when the mold is opened, the slider 1 moves a first set stroke first, then drives the limiting block 12 to move a second set stroke to unlock the corresponding insert rod 30; it further comprises three ejectors 5 corresponding to the insert rods 30 respectively, the ejectors 5 are used to provide a supporting force to the insert rods 30 and to lift the insert rods 30;

[0022] When the mold is closed, the three insert rods 30 are provided with a supporting force by the corresponding ejectors 5, the upper mold goes down, the slider 1 is driven to slide transversely inwards by the cooperation of the inclined guide column 4 and the inclined guide groove 10, the limiting block 12 locks the corresponding insert rod 30;

[0023] After the mold is closed, the upper mold presses the upper end of the insert rod 30; after the injection is completed, the mold is opened, the upper mold goes up, the slider 1 is driven to slide transversely outwards by the cooperation of the inclined guide column 4 and the inclined guide groove 10, the slider 1 moves a first set stroke first to drive the runner to move away from the product, then the limiting block 12 moves a second set stroke to unlock the corresponding insert rod 30;

[0024] The ejector 5 provides a supporting force to the insert rod 30 during the opening and closing of the mold, and lifts the insert rod 30 after the limiting block unlocks the insert rod 30 during the opening of the mold, so that the runner is separated from the slider 1;

[0025] The injection mold of the present application not only plays its own function, but also prolongs the action of the ejector, the slider is not only used to separate the runner, but also can lock and unlock the state of the insert, and adjust the relative position of the insert and the ejector, to ensure the smooth injection, so that the interference problem between the insert and the ejector during setting can be well solved, the structure is reasonable and compact, and the degree of automation is high, without additional manual intervention.

[0026] Preferably, the lateral edges of the three second steps 301 are distributed in a T shape, and the length direction of the longitudinal edge of the T shape is consistent with the sliding direction of the slider 1, by adopting this layout design, the purpose is to ensure that the three limiting blocks 12 can simultaneously lock and unlock the three insert rods 30, to avoid interference.

[0027] Preferably, the limit block 12 is in the shape of a vertical plate, and a movable hole 13 for the limit block 12 to move horizontally is provided in the slider 1, the movable hole 13 is connected to the corresponding movable groove 11 and the oblique guide groove 10, and a return spring 14 for returning the limit block 12 is provided in the movable hole; the limit block 12 is provided with a driving block 120 extending into the oblique guide groove;

[0028] When the mold is opened, the slider 1 first moves to the first set stroke and the driving block 120 is in a state of being pressed by the inclined guide column 4. When the driving block 120 is released from the state of being pressed by the inclined guide column 4, the limit block 12 is driven to move to the second set stroke under the action of the reset spring 14 to unlock the insert rod 30; the structure is reasonable and compact, and the two-stage driving stroke has good stability.

[0029] Preferably, the cross section of the inclined guide pillar 4 is rectangular to ensure synchronous driving of the three driving blocks 120 .

[0030] Preferably, the two branch flow channels 2 are distributed in a π shape (connected by the middle flow channel), and the three first steps 301 correspond to the three sides of the π shape respectively.

[0031] An application method of a slider submersible gate structure capable of automatic ejection is applied to the slider submersible gate structure capable of automatic ejection as described above, wherein the method comprises the steps of:

[0032] When the mold is closed, the three insert rods are supported by the corresponding ejector pins. The upper mold moves downward, and the slide blocks slide inward laterally through the cooperation of the inclined guide pillars and inclined guide grooves. The limit blocks lock the corresponding insert rods. After the mold is closed, the upper mold presses the upper ends of the insert rods.

[0033] After the injection molding is completed, the mold is opened and the upper mold moves upward. The cooperation of the inclined guide pillar and the inclined guide groove drives the slider to slide horizontally outward. The slider first moves the first set stroke to drive the runner to move away from the product, and then the limit block moves the second set stroke to unlock the insert rod;

[0034] The ejector pin provides support for the insert rod during both mold opening and closing processes, and when the mold is opened, the limit block releases the lock on the insert rod and lifts the insert rod, allowing the runner to separate from the slider;

[0035] By applying the method of the present application, the insert not only performs its own function, but also serves to extend the ejector rod. At the same time, the slider is not only used to separate the flow channel, but also can lock and unlock the state of the insert and adjust the relative position of the insert and the ejector rod to ensure the smooth progress of injection molding, thereby effectively solving the problem of interference between the insert and the ejector rod when setting. The structure is reasonable and compact, with a high degree of automation, and no additional manual intervention is required.

[0036] It is to be understood that all such modifications and variations that can occur to those skilled in the art in the light of the foregoing description are to be considered within the scope of the application as defined in the claims appended hereto.

Claims

1. A slider submersible gate structure that can be automatically ejected, characterized in that: The mold is composed of a front mold and a rear mold, the front mold is provided with a main channel, the rear mold is provided with a slider for sliding horizontally, the slider is provided with two branch channels connecting the main channel and a flow channel insert cooperating with the branch channels; the front mold is provided with an inclined guide column for driving the slider to move, and the slider is provided with an inclined guide groove cooperating with the inclined guide column; the flow channel insert includes three insert rods distributed in a triangular shape, and the upper ends of the three insert rods are provided with a first step cooperating with the flow channel; the slider is provided with three movable grooves cooperating with the insert rods, and the lower end of the insert rod is formed with an L-shaped second step, and the inner wall of the movable groove is movably provided with a limit block for limiting the second step; when the mold is closed, the limit block locks the corresponding insert rod, and when the mold is opened, the slider first After moving the first set stroke, the limit block is driven to move the insert rod to the second set stroke to unlock; it also includes three ejectors corresponding to the insert rods, and the ejectors are used to provide support force for the insert rods and to lift the insert rods; the limit block is in the shape of a vertical plate, and the slider is provided with a movable hole for the horizontal movement of the limit block, and the movable hole is connected to the corresponding movable groove and the inclined guide groove; a reset spring for resetting the limit block is provided in the movable hole; a driving block extending into the inclined guide groove is provided on the limit block; when the mold is opened, the slider first moves the first set stroke and the driving block is in a state held by the inclined guide column. When the driving block is out of the state held by the inclined guide column, the limit block is driven to move the insert rod to the second set stroke under the action of the reset spring.

2. The automatic ejection slider submersible gate structure according to claim 1, characterized in that: The transverse sides of the three second steps are distributed in a T-shape, and the length direction of the longitudinal side of the T-shape is consistent with the sliding direction of the slider.

3. The automatic ejection slider submersible gate structure according to claim 1, characterized in that: The cross section of the inclined guide column is rectangular.

4. The automatic ejection slider submersible gate structure according to claim 1, characterized in that: The two branch channels are distributed in a π shape, and the three first steps correspond to the three sides of the π shape respectively.

5. An application method of a slider submersible gate structure capable of automatic ejection, applied to the slider submersible gate structure capable of automatic ejection as claimed in any one of claims 1 to 4, characterized in that: The method comprises the steps of: When the mold is closed, the three insert rods are supported by the corresponding ejector pins. The upper mold moves downward, and the slide blocks slide inward laterally through the cooperation of the inclined guide pillars and inclined guide grooves. The limit blocks lock the corresponding insert rods. After the mold is closed, the upper mold presses the upper ends of the insert rods. After the injection molding is completed, the mold is opened and the upper mold moves upward. The cooperation of the inclined guide pillar and the inclined guide groove drives the slider to slide horizontally outward. The slider first moves the first set stroke to drive the runner to move away from the product, and then the limit block moves the second set stroke to unlock the insert rod; The ejector pin provides support for the insert rod during the mold opening and closing processes, and when the mold is opened, the limit block releases the lock on the insert rod and lifts the insert rod, allowing the runner to separate from the slider.

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