Front mold sliding block pitched roof anti-retreating structure

Abstract

The utility model discloses a front mold slide block pitched roof anti-back structure which comprises a fixed support, a movable support capable of moving up and down is arranged at the front end of the fixed support, the movable support comprises a support opening, a slide block support is fixed in the support opening, inclined guide rails are formed on the inner walls of the two sides of the support opening, the fixed support comprises a shovel base containing opening, and the shovel base containing opening is provided with a shovel base. A shovel base is arranged in the shovel base containing opening, inclined sliding grooves are formed in the left side and the right side of the shovel base respectively, the inclined guide rails are in sliding fit with the inclined sliding grooves, a plurality of cylindrical sliding blocks capable of moving up and down relative to the front mold are fixed to the lower end of the sliding block support, and the diameters of the cylindrical sliding blocks are gradually increased from bottom to top. A plurality of vertical sliding grooves are evenly distributed in the side portion of the cylindrical sliding block, inclined ejection sliding blocks matched with the front mold in a clamped and fixed mode are arranged in the vertical sliding grooves in a sliding mode, the outer side walls of the inclined ejection sliding blocks are aligned to the outer side wall of the cylindrical sliding block, and protruding buckles protruding outwards are formed on the outer side walls of the inclined ejection sliding blocks. The mold is simple in structure and easy to demold.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to an anti-retreat structure for the front mold slider and inclined lifter. Background Art

[0002] In the prior art, many injection-molded workpieces have concave shapes. For example Figure 1 As shown, the workpiece 100 has a concave portion 101, and the inner side edge of the concave portion 101 has a plurality of bayonets 102. During the injection molding process, the concave portion 101 and the bayonets 102 need to be injection-molded together by the mold. However, after the injection molding is completed, it is very difficult to separate the bumps on the mold from the bayonets 102, and the manufacturing difficulty is relatively high. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an anti-retreat structure for the front mold slider and inclined lifter with a simple structure and easy demolding in view of the deficiencies of the prior art.

[0004] To solve the above technical problem, the utility model adopts the following technical solutions.

[0005] An anti-retreat structure for the front mold slider and inclined lifter, which comprises a fixed support. The front end of the fixed support is provided with a movable support that can move up and down. The movable support includes a support opening, and a slider support is fixed in the support opening. Oblique guide rails are formed on both inner walls of the support opening, and the oblique guide rails gradually rise from back to front. The fixed support includes a shoveling base receiving opening, and a shoveling base is arranged in the shoveling base receiving opening. A driving mechanism for driving the shoveling base to move back and forth is arranged at the rear end of the fixed support. Oblique sliding grooves are respectively formed on the left and right sides of the shoveling base. The two oblique guide rails are respectively arranged in the two oblique sliding grooves, and the oblique guide rails are in sliding fit with the oblique sliding grooves. A plurality of cylindrical sliders that can move up and down relative to the front mold are fixed at the lower end of the slider support. The diameter of the cylindrical sliders gradually increases from bottom to top. A plurality of vertical sliding grooves are evenly distributed on the side of the cylindrical sliders. An inclined lifter slider that is fixedly engaged with the front mold is slidably arranged in the vertical sliding grooves. The outer side wall of the inclined lifter slider is aligned with the outer side wall of the cylindrical sliders. A convex buckle that protrudes outwards is formed on the outer side wall of the inclined lifter slider. When the driving mechanism drives the shoveling base to move backward, the movable support and the slider support are driven to lift upwards, the cylindrical sliders rise relative to the inclined lifter slider, and then the inclined lifter slider is driven to tilt towards the axial direction of the cylindrical sliders.

[0006] Preferably, the driving mechanism is an oil cylinder, and the driving shaft of the driving mechanism is in snap-fit connection with the clamping groove on the shoveling base.

[0007] Preferably, it includes two lateral sliding rails, which are symmetrically arranged on the left and right sides of the movable support, and the lateral sliding rails are slidably engaged with the movable support.

[0008] Preferably, the movable support includes a bottom plate, and a plurality of cylindrical sliders all pass through the bottom plate, and the slider support and the bottom plate are stacked.

[0009] Preferably, a plurality of mounting openings are formed at the bottom of the slider support, the cylindrical sliders correspond to the mounting openings one by one, and the upper ends of the cylindrical sliders are all inserted into the mounting openings.

[0010] Preferably, a square end is formed at the upper end of the cylindrical slider, the mounting opening is a square mounting opening, the square end is inserted and engaged with the mounting opening, and a plurality of screws that are screwed with the square end are passed through the slider support.

[0011] Preferably, a limiting and resisting portion protruding outward is formed at the upper end of the angled slider.

[0012] In the front mold slider angled ejector anti-retreat structure disclosed by the present utility model, the fixed support plays a main supporting role, the driving mechanism at its rear end is used to drive the lifter plate to move back and forth, and based on the sliding fit relationship between the angled guide rail and the angled chute, it drives the movable support and the slider support to move up and down. When mold opening is required after injection molding is completed, the driving mechanism is used to drive the lifter plate to move backward, and at the same time drive the movable support and the slider support to lift upward. As the slider support moves upward, the cylindrical slider rises relative to the angled slider. Based on the sliding fit relationship between the angled slider and the vertical chute, a plurality of angled sliders are driven to synchronously tilt towards the axial direction of the cylindrical slider. Correspondingly, a plurality of buckles move closer to the middle, so that the buckles are disengaged from the bayonets at the inner edge of the concave portion. Based on the above structure, it can be seen that compared with the prior art, the present utility model not only has a simple structure, but also is easier to demold, and better meets the application requirements. Description of the Drawings

[0013] Figure 1 It is a structural diagram of a workpiece with a concave portion;

[0014] Figure 2 It is a three-dimensional view of the front mold slider angled ejector anti-retreat structure of the present utility model;

[0015] Figure 3 It is a partially enlarged view of the front mold slider angled ejector anti-retreat structure of the present utility model;

[0016] Figure 4 It is an exploded view of the front mold slider angled ejector anti-retreat structure of the present utility model;

[0017] Figure 5 Is a three-dimensional view of the slider support;

[0018] Figure 6 Is a structural diagram of a cylindrical slider and an inclined ejector slider. Specific implementation manner

[0019] The present utility model will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0020] The present utility model discloses a front mold slider inclined ejector anti-retreat structure. As shown in Figures 1 to 6 , it includes a fixed support 1. A movable support 2 capable of lifting and lowering is provided at the front end of the fixed support 1. The movable support 2 includes a support opening 20. A slider support 3 is fixed in the support opening 20. Oblique guide rails 21 are formed on both inner walls of the support opening 20. The oblique guide rails 21 gradually rise from back to front. The fixed support 1 includes a lifter receiving port 10. A lifter 4 is provided in the lifter receiving port 10. A driving mechanism 5 for driving the lifter 4 to move back and forth is provided at the rear end of the fixed support 1. Oblique chutes 40 are respectively formed on the left and right sides of the lifter 4. The two oblique guide rails 21 are respectively arranged in the two oblique chutes 40, and the oblique guide rails 21 are slidably matched with the oblique chutes 40. A plurality of cylindrical sliders 6 capable of moving up and down relative to the front mold are fixed at the lower end of the slider support 3. The diameter of the cylindrical sliders 6 gradually increases from bottom to top. A plurality of vertical chutes 60 are evenly distributed on the side portions of the cylindrical sliders 6. An inclined ejector slider 7 fixedly engaged with the front mold is slidably arranged in the vertical chutes 60. The outer side wall of the inclined ejector slider 7 is aligned with the outer side wall of the cylindrical slider 6. A convex buckle 70 protruding outward is formed on the outer side wall of the inclined ejector slider 7. When the driving mechanism 5 drives the lifter 4 to move backward, it drives the movable support 2 and the slider support 3 to lift upward. The cylindrical slider 6 rises relative to the inclined ejector slider 7, and then drives the inclined ejector slider 7 to tilt toward the axial direction of the cylindrical slider 6.

[0021] In the above structure, the fixed support 1 plays a main supporting role, and the driving mechanism 5 at its rear end is used to drive the shovel base 4 to move back and forth. Based on the sliding fit relationship between the inclined guide rail 21 and the inclined chute 40, it drives the movable support 2 and the slider support 3 to move up and down. When mold opening is required after injection molding, the driving mechanism 5 is used to drive the shovel base 4 to move backward, and at the same time drive the movable support 2 and the slider support 3 to lift upward. As the slider support 3 moves upward, the cylindrical slider 6 rises relative to the inclined ejector slider 7. Based on the sliding fit relationship between the inclined ejector slider 7 and the vertical chute 60, it drives a plurality of inclined ejector sliders 7 to synchronously tilt towards the axis direction of the cylindrical slider 6. Correspondingly, a plurality of convex buttons 70 move closer to the middle, so that the convex buttons 70 are disengaged from the bayonet 102 at the inner edge of the concave portion 101. Based on the above structure, it can be seen that compared with the prior art, the utility model not only has a simple structure, but also is easier to demold, and better meets the application requirements.

[0022] As a preferred mode, the driving mechanism 5 is an oil cylinder, and the driving shaft 50 of the driving mechanism 5 is snap-fitted with the clamping groove 41 on the shovel base 4. Among them, the advantage of using an oil cylinder as the driving mechanism is that the driving ability of the oil cylinder is stronger, which can ensure the accurate and reliable forward and backward movement of the shovel base 4.

[0023] To ensure the straight up and down movement of the movable support 2, please refer to Figure 4 , this embodiment includes two lateral slide rails 22, and the two lateral slide rails 22 are symmetrically arranged on the left and right sides of the movable support 2, and the lateral slide rails 22 are slidably matched with the movable support 2. Correspondingly, track chutes matching the lateral slide rails 22 can be arranged on the left and right sides of the movable support 2.

[0024] As a preferred mode, the movable support 2 includes a bottom plate 23, and a plurality of cylindrical sliders 6 all pass through the bottom plate 23, and the slider support 3 and the bottom plate 23 are stacked. In the above structure, the bottom plate 23 can not only stably install the slider support 3, but also make the slider support 3 and the movable support 2 closely match.

[0025] In this embodiment, a plug-in and screw fixation fit relationship is preferably adopted between the cylindrical slider 6 and the slider support 3. Combining Figure 5 and Figure 6 shown, a plurality of installation openings 30 are formed at the bottom of the slider support 3, the cylindrical sliders 6 correspond to the installation openings 30 one by one, and the upper ends of the cylindrical sliders 6 are all inserted into the installation openings 30.

[0026] Combining Figure 5 and Figure 6As shown, in this embodiment, a square end 61 is formed at the upper end of the cylindrical slider 6, the mounting opening 30 is a square mounting opening, the square end 61 is in plug-in fit with the mounting opening 30, and a plurality of screws 62 that are screwed with the square end 61 are passed through the slider support 3. Among them, in this embodiment, the cooperation relationship between the square end and the square mounting opening can fix the orientation of the lifter slider 7 and can play an anti-mistake role.

[0027] To achieve accurate demolding, the cylindrical slider 6 is a liftable component, and the lifter slider 7 is a component with a fixed position. In this regard, in this embodiment, a limiting and resisting portion 72 protruding outward is formed at the upper end of the lifter slider 7. Among them, the limiting and resisting portion 72 is used for clamping and fixing cooperation with a preset front mold.

[0028] The above are only preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, or improvements made within the technical scope of the present invention shall be included within the scope protected by the present invention.

Claims

1. A front mold slider inclined top anti-retraction structure, characterized in that: The invention comprises a fixed support (1), wherein the front end of the fixed support (1) is provided with a movable support (2) capable of lifting and lowering movement, wherein the movable support (2) comprises a support opening (20), wherein a slider support (3) is fixed in the support opening (20), and both inner walls of the support opening (20) are formed with inclined guide rails (21), wherein the inclined guide rails (21) gradually rise from the back to the front, wherein the fixed support (1) comprises a shovel base accommodating opening (10), wherein a shovel base (4) is arranged in the shovel base accommodating opening (10), and a driving mechanism (5) for driving the shovel base (4) to move forward and backward is arranged at the rear end of the fixed support (1), and the left and right sides of the shovel base (4) are respectively provided with inclined slide grooves (40), wherein two inclined guide rails (21) are respectively arranged in two inclined slide grooves (40), and wherein the inclined guide rails (21) slide with the inclined slide grooves (40). In cooperation, a plurality of cylindrical sliders (6) which can move up and down relative to the front mold are fixed at the lower end of the slider support (3), and the diameter of the cylindrical slider (6) gradually increases from bottom to top, and a plurality of vertical slide grooves (60) are evenly distributed on the side of the cylindrical slider (6), and an inclined top slider (7) which is fixedly matched with the front mold is slidably arranged in the vertical slide groove (60), and the outer wall of the inclined top slider (7) is aligned with the outer wall of the cylindrical slider (6), and the outer wall of the inclined top slider (7) is formed with a convex buckle (70) protruding outward, when the driving mechanism (5) drives the shovel base (4) to move backward, it drives the movable support (2) and the slider support (3) to be lifted upward, and the cylindrical slider (6) rises relative to the inclined top slider (7), thereby driving the inclined top slider (7) to tilt toward the axial direction of the cylindrical slider (6).

2. The front mold slider inclined top anti-retraction structure according to claim 1, characterized in that: The driving mechanism (5) is an oil cylinder, and the driving shaft (50) of the driving mechanism (5) is engaged and connected with the engaging groove (41) on the shovel base (4).

3. The front mold slider inclined top anti-retraction structure according to claim 1, characterized in that: It comprises two lateral slide rails (22), which are symmetrically arranged on the left and right sides of the movable support (2), and the lateral slide rails (22) are slidably matched with the movable support (2).

4. The front mold slider inclined top anti-retraction structure according to claim 1, characterized in that: The movable support (2) comprises a bottom plate (23), a plurality of cylindrical sliders (6) all pass through the bottom plate (23), and the slider support (3) and the bottom plate (23) are stacked.

5. The front mold slider inclined top anti-retraction structure according to claim 1, characterized in that: The bottom of the slider support (3) is provided with a plurality of mounting openings (30), the cylindrical sliders (6) correspond to the mounting openings (30) one by one, and the upper ends of the cylindrical sliders (6) are inserted into the mounting openings (30).

6. The front mold slider inclined top anti-retraction structure according to claim 5, characterized in that: A square end head (61) is formed at the upper end of the cylindrical slider (6); the mounting opening (30) is a square mounting opening; the square end head (61) is plugged into and matched with the mounting opening (30); and a plurality of screws (62) which are threadedly engaged with the square end head (61) are provided on the slider support (3).

7. The front mold slider inclined top anti-retraction structure according to claim 1, characterized in that: The upper end of the inclined top sliding block (7) is formed with a position limiting stopper (72) protruding outwards.

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