Injection mold for manufacturing front door guard plate of automobile

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for manufacturing a front door guard plate of an automobile, which comprises a sprue, a fixed mold seat plate, an upper hot runner plate, a mold foot plate, a movable mold seat plate, a pitched roof, a straight roof and a base, the upper part of the movable mold seat plate is fixedly connected with the mold foot plate, and a cavity piece is arranged inside the upper surface of the mold foot plate; the upper portion of the fixed mold base plate is fixedly connected with a sprue, the lower portion of the fixed mold base plate is fixedly connected with an upper hot runner plate, a mold core piece is fixedly arranged on the side wall of the upper hot runner plate, a straight push sliding block and an inclined push sliding block are arranged on the inner surface of the upper portion of a mold cavity piece, and the top of an inclined ejector is fixedly connected with the straight push sliding block used for ejecting and forming the automobile front door protection plate. Screw rods are fixedly arranged at the upper parts of the screw rod and the bevel gear set; internal threads are arranged at the lower parts of the inclined ejector and the straight ejector; ejection can be carried out according to a preset sequence through the straight pushing sliding block and the inclined pushing sliding block machine, and the demolding work that the automobile front door protection plate formed at the position of the cavity part can be ejected out of the mold under uniform stress is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts manufacturing, and specifically relates to an injection mold for manufacturing automobile front door guard plates. BACKGROUND

[0002] The automobile front door guard plate injection mold is a special mold for producing automobile front door guard plates. Automobile parts are of various types. In order to quickly produce the raw materials of the parts, injection molds with different internal structures are used. The front door guard plate is also used frequently. In order to produce efficiently, the pouring design, cooling design, demolding mechanism design, and positioning guide mechanism design of the injection mold are the key points to improve the product forming precision and speed up the production progress.

[0003] The above-mentioned problems existing in the prior art are proposed: the structure of the injection mold for producing the automobile front door guard plate is complex, the maintenance cost of the mold parts is high, and the demolding is difficult. The demolding method adopted not only considers that there is enough pushing area when pushing out, but also considers that the matching precision of the deformed part of the plastic part ensures the quality of the plastic part and the smooth demolding. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides an injection mold for manufacturing automobile front door guard plates, which can effectively solve the problem of difficult demolding in the prior art.

[0005] To achieve the above-mentioned purposes, the utility model is implemented by the following technical solutions:

[0006] The utility model provides an injection mold for manufacturing automobile front door guard plates, which comprises a sprue, a fixed mold base plate, an upper hot runner plate, a mold foot plate, a movable mold base plate, an inclined ejector, a straight ejector, and a base from top to bottom. The upper part of the movable mold base plate is fixedly connected with the mold foot plate. The inner part of the upper surface of the mold foot plate is provided with a cavity part. The upper part of the fixed mold base plate is fixedly connected with the sprue. The lower part of the fixed mold base plate is fixedly connected with the upper hot runner plate. The main runner and the branch runner provided in the inner part of the upper hot runner plate are connected with the lower end of the sprue through a pipe. The inner surface of the upper part of the cavity part is provided with a straight push block and an inclined push block. The top of the inclined ejector is fixedly connected with the straight push block for ejecting the formed automobile front door guard plate. The top of the straight ejector is fixedly connected with the inclined push block for ejecting the formed automobile front door guard plate. The side surface of the base is rotatably connected with a main shaft. The outer surface of the main shaft is fixedly provided with a helical gear set. The outer surface of the main shaft is also fixedly provided with a bevel gear set. The upper part of the helical gear set and the bevel gear set is fixedly provided with a screw rod. The lower part of the inclined ejector and the straight ejector is provided with an internal thread. The internal thread is threadedly connected with the screw rod.

[0007] Preferably, the side wall of the upper hot flow channel plate is fixedly provided with a core part, and the top of the cavity part is fixedly provided with a positioning block.

[0008] Preferably, the top of the mold foot plate is fixedly provided with a balance block, and the balance block is provided with four balance blocks respectively arranged at positions close to the top corners of the mold foot plate.

[0009] Preferably, the lower end of the movable mold base plate is fixedly provided with a support plate, the lower end of the support plate is fixedly provided with a bottom plate, and the upper surface of the bottom plate is fixedly connected with the base.

[0010] Preferably, the side surface of the upper hot flow channel plate is fixedly provided with a connecting column, and one end of the main shaft is fixedly provided with an adjusting handle.

[0011] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0012] The utility model discloses a movable mold base plate part is moved to the fixed mold base plate part, and under the action of the connecting column as the guide component, the fixed mold base plate and the movable mold base plate are accurately closed, form a sealed internal space, when the metal melt enters the upper hot flow channel plate through the gate, because the main flow channel and the branch flow channel arranged in the upper hot flow channel plate constitute the gating system, the metal melt gradually fills and compacts in the cavity part, and after cooling and solidification, the automobile front door guard plate is formed, when demolding, the demolding element such as the inclined push sliding block of the inclined top and the straight push sliding block of the straight top are according to the predetermined action sequence and are demolded from the mold, and the staff manually operates the adjusting handle to rotate and can make the straight push sliding block and the inclined push sliding block and other ejection components simultaneously demold, and the straight push sliding block and the inclined push sliding block can be individually pushed out according to the predetermined sequence to demold the automobile front door guard plate, and other demolding elements such as the sliding block and the ejector pin can simultaneously demold the automobile front door guard plate according to the product shape and the demolding resistance distribution, so that the product can be evenly stressed and demolded from the mold, the demolding movement process mode is various and simple, and the automobile front door guard plate yield is improved. ACCURACY

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the movable mold base plate structure schematic diagram of the utility model;

[0016] Figure 3 It is fixed mould base plate structure schematic view of the utility model;

[0017] Figure 4 It is bottom plate structure schematic view of the utility model;

[0018] Figure 5 It is main shaft schematic view of the utility model.

[0019] Reference signs: 1, movable mould base plate;2, fixed mould base plate;3, gate;4, upper hot runner plate;5, mould foot plate;6, cavity part;7, straight push slider;8, inclined push slider;9, inclined ejector pin;10, base;11, bevel gear set;12, screw;13, bevel gear set;14, main shaft;15, core part;16, positioning block;17, balance block;18, support plate;19, bottom plate;20, connecting column;21, adjusting handle;23, straight ejector pin. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] The utility model will be further described below in conjunction with embodiments.

[0022] Embodiment:

[0023] Refer to Figures 1 to 5The utility model relates to an injection mold for manufacturing automobile front door guard plate, from top to bottom including sprue 3, fixed mould base plate 2, upper hot runner plate 4, mould foot plate 5, movable mould base plate 1, inclined top 9, straight top 23 and base 10, the upper portion of movable mould base plate 1 is fixedly connected with mould foot plate 5, the inside of the upper surface of mould foot plate 5 is provided with cavity part 6, the upper portion of fixed mould base plate 2 is fixedly connected with sprue 3, the lower portion of fixed mould base plate 2 is fixedly connected with upper hot runner plate 4, the inside of upper hot runner plate 4 is provided with heating device, can guarantee the uniform flow of metal solution flow state to cavity mould part, the side wall of upper hot runner plate 4 is fixedly provided with core part 15, the top of cavity part 6 is fixedly provided with locating block 16, and the locating block 16 is mainly used to guarantee pouring into cavity part 6, avoids the position deviation of product contour;The main runner and the branch runner of the inside of upper hot runner plate 4 are all connected with the lower end pipe connection of sprue 3, and the pouring pipeline is designed to ensure that plastic melt can uniformly, stably and quickly fill the cavity mould part, the inner surface of the upper portion of cavity part 6 is provided with straight push slider 7 and inclined push slider 8, the top of inclined top 9 is fixedly connected with straight push slider 7 for ejecting the automobile front door guard plate formed, the top of straight top 23 is fixedly connected with inclined push slider 8 for ejecting the automobile front door guard plate formed, and the inclined top 9 and straight top 23 can only move in the linear direction in the slide way inside wall of mould foot plate 5, the side of base 10 is rotatably connected with main shaft 14, the outer surface of main shaft 14 is fixedly provided with helical gear set 11, the outer surface of main shaft 14 is also fixedly provided with bevel gear set 13, the upper portion of helical gear set 11 and bevel gear set 13 is fixedly provided with screw rod 12, the lower portion of inclined top 9 and straight top 23 is provided with internal thread, and the internal thread is threadedly connected with screw rod 12;Through setting screw rod 12, the inclined top 9 and straight top 23 are moved along the slide direction in the process of rotating, and the demolding work of straight push slider 7 and inclined push slider 8 to the position forming automobile front door guard plate of cavity part 6 is completed.

[0024] The lower end of movable mould base plate 1 is fixedly provided with support plate 18, the lower end of support plate 18 is fixedly provided with bottom plate 19, the upper surface of bottom plate 19 is fixedly connected with base 10, the relative position relationship of movable mould base plate 1 and base 10 is determined through setting bottom plate 19, and the phenomenon that the position is deviated due to movement in the demolding process is avoided, the top of mould foot plate 5 is fixedly provided with balance block 17, the balance block 17 is provided with four and is respectively at the position close to the corner of the top of mould foot plate 5, and the balance block 17 is used to guarantee that the position of cavity part 6 and core part 15 is flush;

[0025] The side of the upper hot runner plate 4 is fixedly provided with a connecting column 20, and one end of the main shaft 14 is fixedly provided with an adjusting handle 21; the adjusting handle 21 is arranged to simultaneously move the sliding block and other ejection components such as the ejector pin, so that the formed automobile front door guard plate is uniformly stressed and separated from the mold; and the connecting column 20 guides the lifting height of the fixed mold base plate 2 during the separation process, so as to avoid position interference during the separation movement.

[0026] The working principle of the utility model is as follows:

[0027] Before pouring, the fixed mold base plate 2 starts to close along the guided movement direction, the balance block 17 is used to ensure that the positions of the cavity part 6 and the core part 15 are flush, the fixed mold base plate 2 and the movable mold base plate 1 are accurately closed, a sealed internal space is formed, the metal melt enters the upper hot runner plate 4 through the gate 3, the main runner and the branch runner arranged in the upper hot runner plate 4 form a pouring system, and the metal melt is gradually filled and compacted in the cavity part 6;

[0028] After cooling, the position of the cavity part 6 has formed the formed automobile front door guard plate, the straight push sliding block 7 and the inclined push sliding block 8 can be individually slightly ejected according to the predetermined sequence, and are used to reduce the demolding resistance;

[0029] When formal demolding is performed, the operator manually rotates the adjusting handle 21, so that the straight push sliding block 7 and the inclined push sliding block 8 and other ejection components simultaneously perform the demolding movement, the screw rod 12 drives the inclined ejector pin 9 and the straight ejector pin 23 to move along the slide direction in the rotating process, and the demolding work of the straight push sliding block 7 and the inclined push sliding block 8 to the position of the cavity part 6 to form the automobile front door guard plate is completed.

[0030] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the utility model.

Claims

1. An injection mold for manufacturing automotive front door panels, characterized in that, From top to bottom, the components include a gate (3), a fixed mold base plate (2), an upper hot runner plate (4), a mold foot plate (5), a moving mold base plate (1), an angled ejector (9), a straight ejector (23), and a base (10). The upper part of the moving mold base plate (1) is fixedly connected to the mold foot plate (5). A cavity component (6) is provided inside the upper surface of the mold foot plate (5). The upper part of the fixed mold base plate (2) is fixedly connected to the gate (3), and the lower part of the fixed mold base plate (2) is fixedly connected to the upper hot runner plate (4). The main runner and branch runners provided inside the upper hot runner plate (4) are connected to the lower end of the gate (3) via pipes. A straight pusher slide (7) and an angled pusher slide are provided on the inner surface of the upper part of the cavity component (6). Block (8), the top of the inclined top (9) is fixedly connected to the straight push slider (7) for ejecting the molded front door panel of the car, the top of the straight top (23) is fixedly connected to the inclined push slider (8) for ejecting the molded front door panel of the car, the side of the base (10) is rotatably connected to the main shaft (14), the outer surface of the main shaft (14) is fixedly provided with a helical gear set (11), the outer surface of the main shaft (14) is also fixedly provided with a bevel gear set (13), the upper part of the helical gear set (11) and the bevel gear set (13) are both fixedly provided with a screw (12), the lower part of the inclined top (9) and the straight top (23) are both provided with internal threads, and the internal threads are threadedly connected to the screw (12).

2. The injection mold for manufacturing a front door panel of an automobile according to claim 1, characterized in that, The upper hot runner plate (4) is fixedly provided with a core part (15) on its side wall, and the cavity part (6) is fixedly provided with a positioning block (16) on its top.

3. The injection mold for manufacturing a front door panel of an automobile according to claim 1, characterized in that, The top of the mold base plate (5) is fixedly provided with a balance block (17), and there are four balance blocks (17) in total, which are located near the top corner of the mold base plate (5).

4. The injection mold for manufacturing a front door panel of an automobile according to claim 1, characterized in that, A support plate (18) is fixedly provided at the lower end of the moving mold base plate (1), and a base plate (19) is fixedly provided at the lower end of the support plate (18). The upper surface of the base plate (19) is fixedly connected to the base (10).

5. The injection mold for manufacturing a front door panel of an automobile according to claim 1, characterized in that, A connecting column (20) is fixedly provided on the side of the upper hot runner plate (4), and an adjusting handle (21) is fixedly provided at one end of the main shaft (14).

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