One-step forming die for automobile sun visor

Abstract

The utility model provides a one-step forming die for an automobile sun shield. The one-step forming die comprises a movable die plate and a fixed die plate, the movable mold plate and the fixed mold plate are clamped, a movable mold core and a fixed mold core are embedded between the movable mold plate and the fixed mold plate, and a sliding block assembly is arranged in the fixed mold core; the sliding block assembly comprises a sliding block insert mounted in the fixed mold core, a sliding rod arranged in the sliding block insert in a penetrating manner, a sliding seat connected with the tail end of the sliding rod and a limiting frame for mounting the sliding seat; the limiting frame is mounted on a fixed mold plate and extends to the outer end of one side of the fixed mold plate; a plurality of groups of sprue inserts are arranged on the fixed mold plate, the sprue inserts extend into the fixed mold core, and the positions of the plurality of sprues correspond to the positions of product reinforcing ribs in the mold cavity. The plastic part forming quality is good, the mass production stability is high, meanwhile, the structure that the limiting frame extends to the outer end of one side of the fixed mold plate is adopted, the displacement amount of the sliding seat is increased, the appearance structure of the mold is simplified, and the mold cost is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a one-step molding mold for an automobile sun visor. Background Art

[0002] The car sun visor is a component inside the car, mainly used to block direct sunlight, protect the driver and passengers from the interference of strong sunlight, and improve driving safety and comfort.

[0003] Existing automobile sun visor injection molding molds usually use side draw to injection mold them due to the design factors of the position of the rotating axis of the sun visor itself. However, since the axial dimension of the rotating axis is relatively long, in order to successfully complete the side draw demolding of the rotating axis, it is inevitable to extend the mold template, resulting in an increase in the overall appearance size of the mold and further increase in the mold cost. Furthermore, the sun visor is an interior part of the car, and the appearance quality of the plastic parts is required to be high. However, the existing sun visor production mold has a glue inlet set on one side of the mold cavity, and the side glue injection is likely to leave marks on the plastic part. At the same time, due to factors such as mold temperature and pressure, the plastic parts often have pits, shrinkage and other defects, resulting in poor appearance quality. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a one-step molding die for automobile sun visors, which simplifies the mold structure and improves the molding quality of plastic parts.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A one-step forming die for a car sun visor, comprising a movable die plate and a fixed die plate;

[0007] The movable mold plate is engaged with the fixed mold plate, and a movable mold core and a fixed mold core are embedded between the movable mold plate and the fixed mold plate. A cavity for product molding is provided between the movable mold core and the fixed mold core, and a slider assembly is provided in the fixed mold core;

[0008] The slider assembly includes a slider insert installed in the fixed mold core, a slide rod passing through the slider insert, a slide seat connected to the end of the slide rod, and a limit frame for installing the slide seat;

[0009] The limiting frame is installed on the fixed template and extends to the outer end of one side of the fixed template;

[0010] Multiple groups of gate inserts are provided on the fixed mold plate. One group of gate inserts includes a left gate insert and a right gate insert that are symmetrical to each other. The two gate inserts are assembled to form a branch channel and a gate. The branch channel is curved in a horn shape, and its end is connected to the gate. The end of the branch channel away from the gate is connected to the main channel opened on the fixed mold core.

[0011] The gate insert extends into the fixed mold core, and the positions of the multiple gates correspond to the positions of the product reinforcement ribs in the cavity.

[0012] In a preferred embodiment of the present invention, a driving assembly is installed on the movable template at a position corresponding to the slider assembly, and the driving assembly includes an inclined guide rod and a limit block for fixing the inclined guide rod on the movable template. An inclined hole is opened on the sliding seat, and the inclined guide rod is inserted into the inclined hole.

[0013] In a preferred embodiment of the present invention, a mounting groove for placing a limit frame is opened on the fixed template, the sliding seat is slidably installed in the limit frame, a clamping seat is installed at one end of the sliding seat close to the slide rod, and the slide rod is installed in the clamping groove of the clamping seat.

[0014] In a preferred embodiment of the present invention, the fixed mold core includes a first fixed mold core and a second fixed mold core, and both of them correspond to the movable mold core.

[0015] In a preferred embodiment of the present invention, a plurality of first snap-fit ​​inserts are provided on the circumference of the first fixed mold core, and a plurality of second snap-fit ​​inserts are provided on the circumference of the second fixed mold core at positions corresponding to the first snap-fit ​​inserts.

[0016] In a preferred embodiment of the present invention, a plurality of inclined top inserts are further installed in the first fixed mold core, and the plurality of inclined top inserts are located in the oblique installation grooves of the first fixed mold core.

[0017] Beneficial effects: The one-time molding die for the automobile sun visor described in the utility model adopts a structure in which the limit frame extends to the outer end of one side of the fixed template, thereby increasing the displacement of the sliding seat, completing the molding of the plastic part's rotating shaft position, simplifying the mold's appearance structure, and effectively reducing the mold cost. At the same time, the use of the slider insert and the slide rod to cooperate facilitates subsequent repair and maintenance, thereby extending the service life of the mold.

[0018] The use of gate inserts allows the glue inlet to be located in the inner cavity of the product. At the same time, the gate inserts extend into the mold cavity of the fixed mold core, so that the position of the gate corresponds to the position of the product reinforcement rib in the cavity, improving the molding quality of the plastic part and increasing its mass production stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a one-step forming mold for a car sun visor provided by the utility model;

[0020] Figure 2 A schematic diagram of the partial structure of a one-step forming mold for a car sun visor provided by the utility model Figure 1 ;

[0021] Figure 3 A schematic diagram of the partial structure of a one-step forming mold for a car sun visor provided by the utility model Figure 2 ;

[0022] Figure 4 This is a schematic structural diagram of the sliding assembly of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the gate insert of the present invention;

[0024] Figure 6 It is a partial structural diagram of the gate insert of the utility model;

[0025] Figure 7 This is a schematic structural diagram of the drive assembly of the present invention;

[0026] Figure 8 This is a partial structural diagram of the fixed mold core of the utility model;

[0027] Figure 9 This is a schematic diagram of the partial installation structure of the fixed mold plate, fixed mold core and sliding assembly described in the present invention.

[0028] In the figure: 1 moving template;

[0029] 2. Fixed template;

[0030] 3. Moving mold core;

[0031] 4 fixed mold core, 41 first fixed mold core, 42 second fixed mold core, 43 first buckle insert, 44 second buckle insert, 45 inclined top insert;

[0032] 5 slider assembly, 51 slider insert, 52 slide rod, 53 slide seat, 54 limit frame, 55 card seat;

[0033] 6 driving assembly, 61 oblique guide rod, 62 limiting block;

[0034] 7 gate insert, 71 left gate insert, 72 right gate insert. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0036] like Figure 1-3 As shown, the utility model provides a one-step forming die for a car sun visor, comprising a movable die plate 1 and a fixed die plate 2;

[0037] The movable mold plate 1 is engaged with the fixed mold plate 2, and a movable mold core 3 and a fixed mold core 4 are embedded between the movable mold plate 1 and the fixed mold plate 2. A cavity for product molding is provided between the movable mold core 3 and the fixed mold core 4, and a slider assembly 5 is provided in the fixed mold core 4;

[0038] Slider assembly 5, such as Figure 4 As shown, it includes a slider insert 51 installed in the fixed mold core 4, a slide rod 52 passing through the slider insert 51, a slide seat 53 connected to the end of the slide rod 52, and a limit frame 54 for installing the slide seat 53;

[0039] The limiting frame 54 is installed on the fixed template 2 and extends to the outer end of one side of the fixed template 2;

[0040] A plurality of gate inserts 7 are provided on the fixed template 2, such as Figure 5-6 As shown, a set of gate inserts 7 includes a left gate insert 71 and a right gate insert 72 that are symmetrical to each other. The two are assembled to form a branch channel and a gate. The branch channel is curved in a horn shape, and its end is connected to the gate. The end of the branch channel away from the gate is connected to the main channel opened on the fixed mold core 4.

[0041] The gate insert 7 extends into the fixed mold core 4, and the positions of the multiple gates correspond to the positions of the product reinforcement ribs in the cavity.

[0042] The working principle and beneficial effects of the above embodiment are as follows:

[0043] The slider insert 51 of the present invention is fixedly installed in the mold cavity of the fixed mold core 4. One end of the slide rod 52 is inserted into the slider insert 51, and the other end is fixedly connected to the slide seat 53. The slide seat 53 moves back and forth along the limit frame 54 while driving the slide rod 52 away from or into the slide insert 51 to complete the molding and demoulding of the product. The limit frame 54 extends to the outer end of one side of the fixed mold plate 2, increasing the displacement of the slide seat 53, simplifying the mold appearance structure, and effectively reducing the mold cost.

[0044] The gate insert 7 is used to make the glue inlet position located in the inner cavity of the product. At the same time, the gate insert 7 extends into the mold cavity of the fixed mold core 4, so that the position of the gate corresponds to the position of the product reinforcement rib in the mold cavity, thereby improving the product molding quality and the stability of mass production.

[0045] In one embodiment,

[0046] like Figure 7 As shown, a driving assembly 6 is installed at a position corresponding to the slider assembly 5 on the movable template 1. The driving assembly 6 includes an inclined guide rod 61 and a limit block 62 for fixing the inclined guide rod 61 on the movable template 1. An inclined hole is opened on the sliding seat 53, and the inclined guide rod 61 is inserted into the inclined hole.

[0047] The working principle and beneficial effects of the above embodiment are as follows:

[0048] One end of the inclined guide rod 61 is installed on the movable template 1, and the other end is passed through the inclined hole of the sliding seat 53. When the movable template 1 is in the open mold state and moves away from the fixed template 2, the inclined guide rod 61 pushes the sliding seat 53 to move backward, completing the demoulding of the slide rod 52. The mechanical structure is used in conjunction with the slider insert 51 to complete the demoulding of the product, thereby realizing precise control and positioning of the slide rod 52.

[0049] In one embodiment,

[0050] An installation groove for placing a limit frame 54 is opened on the fixed template 2, and the sliding seat 53 is slidably installed in the limit frame 54. A clamping seat 55 is installed at one end of the sliding seat 53 close to the slide rod 52. The slide rod 52 is installed in the clamping groove of the clamping seat 55, which is used for fixing and limiting one end of the slide rod 52. The clamping seat 55 and the sliding seat 53 are fixed with bolts.

[0051] In one embodiment,

[0052] like Figure 8 As shown, the fixed mold core 4 includes a first fixed mold core 41 and a second fixed mold core 42, and both correspond to the movable mold core 3 to form the upper cover and lower cover of the product;

[0053] The movable mold core 4 is composed of a first fixed mold core 41 and a second fixed mold core 42, which can reduce the difficulty of mold processing, improve mold processing accuracy and service life, and at the same time reduce the maintenance cost of the mold. It also optimizes the mold exhaust system and improves the exhaust effect of plastic part molding.

[0054] In one embodiment,

[0055] like Figure 9 As shown, a plurality of first snap-fit ​​inserts 43 are provided on the circumferential side of the first fixed mold core 41, and a plurality of second snap-fit ​​inserts 44 are provided on the circumferential side of the second fixed mold core 42 at positions corresponding to the first snap-fit ​​inserts 43, to facilitate the snap-fit ​​installation of the upper and lower covers of the product.

[0056] In one embodiment,

[0057] A plurality of inclined top inserts 45 are also installed in the first fixed mold core 41. The plurality of inclined top inserts 45 are located in the inclined installation grooves of the first fixed mold core 41, so that the special-shaped concave structure of the product can be injection molded in one time, thereby improving the production efficiency and molding quality of the product.

[0058] In summary:

[0059] The one-time molding mold for the automobile sun visor of the present invention adopts a pair of molds to complete the molding of the upper and lower covers of the sun visor. The movable mold core 3 is tightly fitted with the fixed mold core 4. The plastic solution enters the gate insert 7 through the main flow channel on the fixed mold core 4 and flows into the first fixed mold core 41 and the second fixed mold core 42 on both sides and fills the mold cavity. The mold is opened after pressure maintenance and cooling. The plastic part is molded on the fixed mold core 4. When the movable mold plate 1 moves away from the fixed mold plate 2, the inclined guide rod 61 pushes the sliding seat 53 to move backward to complete the demoulding of the slide rod 52. The molded plastic part on the fixed mold core 4 is ejected outward by a number of ejectors to complete the demoulding of the plastic part.

[0060] The slider assembly 5 of the present invention adopts a structure in which the limit frame 54 extends to the outer end of one side of the fixed mold plate 2, thereby increasing the displacement of the sliding seat 53, that is, increasing the displacement of the slide rod 52, completing the molding of the plastic part's rotating shaft position, simplifying the mold appearance structure, and effectively reducing the mold cost;

[0061] The gate insert 7 is used to position the glue inlet in the inner cavity of the product. At the same time, the gate insert 7 extends into the mold cavity of the fixed mold core 4, so that the position of the gate corresponds to the position of the product reinforcement rib in the mold cavity, thereby improving product quality and the stability of mass production.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. The terms "front", "back", "left" and "right" used in the text are not specific and are mainly used to more intuitively illustrate the technical solution and do not have a limiting effect. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A one-step forming mold for a car sun visor, characterized by: It includes a movable plate (1) and a fixed plate (2); The movable mold plate (1) is engaged with the fixed mold plate (2), and a movable mold core (3) and a fixed mold core (4) are embedded between the movable mold plate (1) and the fixed mold plate (2). A mold cavity for product molding is provided between the movable mold core (3) and the fixed mold core (4), and a slider assembly (5) is provided in the fixed mold core (4); A slider assembly (5), comprising a slider insert (51) installed in a fixed mold core (4), a slide rod (52) passing through the slider insert (51), a slide seat (53) connected to the end of the slide rod (52), and a limit frame (54) for installing the slide seat (53); The limiting frame (54) is mounted on the fixed template (2) and extends to an outer end of one side of the fixed template (2); A plurality of groups of gate inserts (7) are provided on the fixed mold plate (2), wherein one group of gate inserts (7) comprises a left gate insert (71) and a right gate insert (72) which are symmetrical to each other, and the two are combined to form a branch channel and a gate, wherein the branch channel is curved in a bull horn shape, and its end is connected to the gate, and the end of the branch channel away from the gate is connected to the main channel opened on the fixed mold core (4); The gate insert (7) extends into the fixed mold core (4), and the positions of the plurality of gates correspond to the positions of the product reinforcement ribs in the mold cavity.

2. The one-step forming mold for automobile sun visor according to claim 1, characterized in that: A driving assembly (6) is installed on the movable plate (1) at a position corresponding to the slider assembly (5). The driving assembly (6) includes an inclined guide rod (61) and a limit block (62) for fixing the inclined guide rod (61) on the movable plate (1). An inclined hole is opened on the sliding seat (53), and the inclined guide rod (61) is inserted into the inclined hole.

3. The one-step forming mold for automobile sun visor according to claim 1, characterized in that: A mounting groove for placing a limit frame (54) is provided on the fixed template (2), the sliding seat (53) is slidably mounted in the limit frame (54), a clamping seat (55) is mounted on one end of the sliding seat (53) close to the slide rod (52), and the slide rod (52) is mounted in the clamping groove of the clamping seat (55).

4. The one-step forming mold for automobile sun visor according to claim 1, characterized in that: The fixed mold core (4) comprises a first fixed mold core (41) and a second fixed mold core (42), and both correspond to the movable mold core (3).

5. The one-step forming mold for automobile sun visor according to claim 4, characterized in that: A plurality of first buckling inserts (43) are provided on the circumferential side of the first fixed mold core (41), and a plurality of second buckling inserts (44) are provided on the circumferential side of the second fixed mold core (42) at positions corresponding to the first buckling inserts (43).

6. The one-step forming mold for automobile sun visor according to claim 4, characterized in that: A plurality of inclined top inserts (45) are also installed in the first fixed mold core (41), and the plurality of inclined top inserts (45) are located in the inclined installation grooves of the first fixed mold core (41).

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