Injection mold for automobile door decorative plate

Abstract

The utility model relates to an injection mold for an automobile door decorative plate. The injection mold comprises a movable mold plate and a fixed mold plate which are respectively arranged front and back and are matched with each other, and a movable mold core and a fixed mold core which are respectively embedded in the rear side of the movable mold plate and the front side of the fixed mold plate and are matched with each other, a seat block is forwards formed on the end face of the fixed mold core, a forming convex seat is outwards formed on the end face of the movable mold core, and correspondingly, a forming concave cavity matched with the forming convex seat is formed in the corner of the left side of the seat block; a positioning notch matched with the right corner of the end of the seat block is formed in the inner wall of the left side of the forming protruding seat. According to the utility model, the two buckle strips can be molded together while the vehicle door decorative plate is molded, and the two buckle strips do not need to be separately molded, so that the procedure of manually mounting the two buckle strips is omitted, the production is simplified, the production efficiency is improved, and the labor cost and the material cost are reduced.

Description

Technical Field

[0001] The utility model relates to an injection mold for an automobile door decorative panel. Background Art

[0002] In addition to its decorative function, the decorative panels of car doors also have the functions of shock absorption, noise reduction, and body protection. In order to achieve the lightweight design of the car and take into account material costs, the door decorative panels are all injection molded parts, so their production method is injection molding.

[0003] In order to firmly install the door decorative panel on the door, two fixing buckle strips are designed on the side of the door decorative panel facing the door. The existing injection mold for producing door decorative panels cannot form the two buckle strips at the same time as forming the door decorative panel, but is formed separately. The two buckle strips are then manually installed on the door decorative panel. Therefore, the production steps are relatively cumbersome, resulting in low production efficiency and high labor costs. In addition, since an injection mold matching the buckle strip needs to be made separately, additional mold production costs are incurred, which leads to high material costs and needs further improvement. Utility Model Content

[0004] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an injection mold for automobile door decorative panels which simplifies production to improve production efficiency and reduces both labor costs and material costs.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: an injection mold for a car door decorative panel, comprising a movable platen and a fixed platen arranged front and rear and cooperating with each other, and a movable mold core and a fixed mold core respectively embedded in the rear side of the movable platen and the front side of the fixed platen and cooperating with each other, characterized in that:

[0006] A seat block is formed forward on the end surface of the fixed mold core, and a forming convex seat is formed outward on the end surface of the movable mold core. Correspondingly, a forming cavity that cooperates with the forming convex seat is formed at the left corner of the seat block; a positioning notch that cooperates with the right corner of the seat block end is formed on the left inner wall of the forming convex seat;

[0007] A first parting groove and a second parting groove are formed outwardly on the bottom surface of the convex seat, and a first parting component and a second parting component are respectively provided in the first parting groove and the second parting groove;

[0008] The first parting assembly includes a first fixed parting block fixed to the upper outer wall of the seat block, a first movable parting block movably connected to the end surface of the fixed mold core to have the function of vertical movement up and down and cooperating with the first fixed parting block and located above the first fixed parting block, and a first oblique traction column obliquely inserted in the first movable parting block, wherein the front end of the first oblique traction column is fixed to the movable mold core;

[0009] The second parting assembly includes a second fixed parting block fixed to the lower outer wall of the seat block, a second movable parting block movably connected to the end surface of the fixed mold core to have the function of vertical movement up and down and cooperating with the second fixed parting block and located below the second fixed parting block, and a second oblique traction column obliquely inserted in the second movable parting block, wherein the front end of the second oblique traction column is fixed to the movable mold core;

[0010] A first pressing block is formed on the first moving parting block and is located above the first fixed parting block. A first parting notch is formed at the lower rear corner of the first pressing block. A first step block is formed downward on the bottom surface of the first parting notch. Correspondingly, a second parting notch is formed on the upper side of the first fixed parting block. A second step block is formed upward on the inner wall of the second parting notch. The upper outer wall of the second step block cooperates with the lower outer wall of the first step block.

[0011] A second pressing block located above the second fixed parting block is formed forward on the second dynamic parting block, and a third parting notch is provided at the upper rear corner of the second pressing block. Correspondingly, a fourth parting notch is provided on the lower side of the second fixed parting block, and a third step block is formed downward on the inner wall of the fourth parting notch, and the lower outer wall of the third step block cooperates with the bottom surface of the third parting notch.

[0012] Preferably, a first protrusion is formed upward on the front side of the bottom of the first parting notch, and correspondingly, a first recess that cooperates with the first protrusion is formed on the front inner wall of the first parting notch.

[0013] Preferably, a second protrusion is formed forward on the front side of the second fixed parting block, and correspondingly, a second recess that cooperates with the second protrusion is formed on the front inner wall of the third parting notch.

[0014] Preferably, a first stopper is vertically formed downwardly on the right edge of the first step block, and correspondingly, a first limiting notch that cooperates with the first stopper is formed at the upper right corner of the first fixed parting block.

[0015] Preferably, a second stop block is vertically formed on the right edge of the bottom surface of the third parting notch, and correspondingly, a second limiting notch cooperating with the second stop block is formed at the lower right corner of the second fixed parting block.

[0016] Preferably, the lower side of the first fixed parting block is provided with a first semicircular groove and a second semicircular groove which are respectively distributed on the left and right and parallel to each other. Correspondingly, the upper outer wall of the seat block is provided with a third semicircular groove and a fourth semicircular groove which are respectively spliced ​​with the first semicircular groove and the second semicircular groove.

[0017] Preferably, a forming notch is provided at the upper left corner of the second fixed parting block, a corner notch is provided on the lower outer wall of the seat block, and a first arc-shaped groove and a fifth semicircular groove are provided on the bottom surface of the forming notch, which are respectively distributed on the left and right and parallel to each other. Correspondingly, a second arc-shaped groove that cooperates with the first arc-shaped groove is provided at the corner of the inner wall of the corner notch, and a sixth semicircular groove that cooperates with the fifth semicircular groove is provided on the upper inner wall of the corner notch.

[0018] Preferably, a plurality of rib plate grooves are further provided on the bottom surface of the second parting notch, which are distributed in parallel from left to right and are all located on the left side of the second step block.

[0019] Compared with the existing technology, the advantages of the present invention are that the present invention can form two snap strips at the same time as the door decorative panel is formed, without the need to form the two snap strips separately, thereby eliminating the need for manual installation of the two snap strips, thereby simplifying production to improve production efficiency, and reducing both labor costs and material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the exploded structural diagram of the left front side of the utility model;

[0021] Figure 2 This is a structural diagram of the right rear side of the movable mold core of the present utility model;

[0022] Figure 3 This is a structural diagram of the left front side of the fixed mold core of the present utility model;

[0023] Figure 4 This is a left front exploded structural diagram of the first sub-molding component of the present invention;

[0024] Figure 5 This is an exploded structural diagram of the right rear side of the first sub-molding component of the present invention;

[0025] Figure 6 This is a left front exploded structural diagram of the second sub-type component of the present invention;

[0026] Figure 7 This is an exploded structural diagram of the right rear side of the second sub-molding component of the present invention. DETAILED DESCRIPTION

[0027] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0028] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0029] like Figures 1 to 7 As shown, an injection mold for a car door trim panel includes a movable mold plate 1 and a fixed mold plate 3 arranged front and back and cooperating with each other, and a movable mold core 2 and a fixed mold core 4 respectively embedded in the rear side of the movable mold plate 1 and the front side of the fixed mold plate 3 and cooperating with each other;

[0030] A seat block 42 is formed on the end surface of the fixed mold core 4 facing forward, and a molding protrusion 21 is formed on the end surface of the movable mold core 2 facing outward. Correspondingly, a molding cavity 41 is formed at the left corner of the seat block 42 to cooperate with the molding protrusion 21; a positioning notch 22 is formed on the left inner wall of the molding protrusion 21 to cooperate with the right corner of the end of the seat block 42;

[0031] A first parting groove 23 and a second parting groove 24 are formed on the bottom surface of the boss 21. A first parting component 5 and a second parting component 6 are respectively provided in the first parting groove 23 and the second parting groove 24.

[0032] The first parting assembly 5 includes a first fixed parting block 52 fixed to the upper outer wall of the seat block 42, a first movable parting block 51 movably connected to the end surface of the fixed mold core 4 to have the function of vertical movement and cooperating with the first fixed parting block 52 and located above the first fixed parting block 52, and a first inclined traction column 53 obliquely inserted in the first movable parting block 51. The front end of the first inclined traction column 53 is fixed to the movable mold core 2.

[0033] The second parting assembly 6 includes a second fixed parting block 62 fixed to the outer wall of the lower side of the seat block 42, a second movable parting block 61 movably connected to the end surface of the fixed mold core 4 to have the function of vertical movement and cooperating with the second fixed parting block 62 and located below the second fixed parting block 62, and a second inclined traction column 63 obliquely inserted in the second movable parting block 61. The front end of the second inclined traction column 63 is fixed to the movable mold core 2.

[0034] A first pressing block 511 is formed on the first moving parting block 51 and is located above the first fixed parting block 52. A first parting notch 515 is formed at the lower rear corner of the first pressing block 511. A first step block 512 is formed downward on the bottom surface of the first parting notch 515. Correspondingly, a second parting notch 524 is formed on the upper side of the first fixed parting block 52. A second step block 521 is formed upward on the inner wall of the second parting notch 524. The upper outer wall of the second step block 521 cooperates with the lower outer wall of the first step block 512.

[0035] A second pressing block 611 is formed forward on the second movable parting block 61 and is located above the second fixed parting block 62. A third parting notch 612 is provided at the upper rear corner of the second pressing block 611. Correspondingly, a fourth parting notch 623 is provided on the lower side of the second fixed parting block 62. A third step block 622 is formed downward on the inner wall of the fourth parting notch 623, and the lower outer wall of the third step block 622 cooperates with the bottom surface of the third parting notch 612.

[0036] A first protrusion 526 is formed on the front side of the bottom of the first parting notch 524 . Correspondingly, a first recess 514 cooperating with the first protrusion 526 is formed on the front inner wall of the first parting notch 515 .

[0037] A second protrusion 624 is formed on the front side of the second fixed parting block 62 . Correspondingly, a second recess 614 cooperating with the second protrusion 624 is formed on the front inner wall of the third parting notch 612 .

[0038] A first stopper 513 is vertically formed downwardly at the right edge of the first step block 512 . Correspondingly, a first limiting notch 522 cooperating with the first stopper 513 is formed at the upper right corner of the first fixed parting block 52 .

[0039] A second stopper 613 is vertically formed on the right edge of the bottom surface of the third parting notch 612 . Correspondingly, a second limiting notch 621 cooperating with the second stopper 613 is formed at the lower right corner of the second fixed parting block 62 .

[0040] The lower side of the first fixed parting block 52 is provided with a first semicircular groove 523 and a second semicircular groove 527 which are distributed on the left and right and are parallel to each other. Correspondingly, the upper outer wall of the seat block 42 is provided with a third semicircular groove 44 and a fourth semicircular groove 43 which are respectively spliced ​​with the first semicircular groove 523 and the second semicircular groove 527.

[0041] A forming notch 626 is provided at the upper left corner of the second fixed parting block 62, and a corner notch 47 is provided on the lower outer wall of the seat block 42. A first arcuate groove 623 and a fifth semicircular groove 627, which are distributed on the left and right and are parallel to each other, are provided on the bottom surface of the forming notch 626. Correspondingly, a second arcuate groove 45 that cooperates with the first arcuate groove 623 is provided at the corner of the inner wall of the corner notch 47, and a sixth semicircular groove 46 that cooperates with the fifth semicircular groove 627 is provided on the upper inner wall of the corner notch 47.

[0042] A plurality of rib grooves 525 are further defined on the bottom surface of the second parting notch 524 , which are distributed in parallel from left to right and are all located on the left side of the second step block 521 .

[0043] A plurality of sixth semicircular grooves 625 are formed on the upper outer wall of the second fixed parting block 62 and are distributed in parallel from left to right.

[0044] Working principle:

[0045] Fix the fixed platen 3 on the motion mechanism of the injection molding machine, fix the movable platen 1 on the positioning base of the injection molding machine, and use the motion mechanism to drive the movable platen 1 to move toward the fixed platen 3 until the movable platen 1 and the fixed platen 3 are assembled with each other (existing technology). At this time, the molding protrusion 21 on the movable mold core 2 extends into the molding cavity 41 on the fixed mold core 4.

[0046] During the movement, the movable mold core 2 will drive the first inclined traction column 53 in the first parting component 5 and the second inclined traction column 63 in the second parting component 6 to move backward, thereby forcing the first movable parting block 51 and the second movable parting block 61 to move toward the first fixed parting block 52 and the second fixed parting block 62 respectively, until the lower outer wall of the first step block 512 and the upper outer wall of the second step block 521 are in contact with each other; and the lower outer wall of the third step block 622 and the bottom surface of the third parting notch 612 are in contact with each other.

[0047] At the same time, the first stop block 513 on the first step block 512 is inserted into the first limiting notch 522, and the second stop block 613 on the third parting notch 612 is inserted into the second limiting notch 621; the first protrusion 526 on the first parting notch 524 is embedded in the first recess 514, and the second protrusion 624 on the second fixed parting block 62 is embedded in the second recess 614.

[0048] Next, the molten material enters between the molding protrusion 21 and the molding cavity 41 through the runner set in the movable mold plate 1, and can be formed into a vehicle door decorative panel after cooling; the first parting groove 23 and the first parting component 5 and the second parting groove 24 and the second parting component 6 will form a corresponding buckle strip on the vehicle door decorative panel.

[0049] The utility model can form two snap buckle strips at the same time as forming the vehicle door decorative panel, without the need to form the two snap buckle strips separately, thereby eliminating the process of manually installing the two snap buckle strips, thereby simplifying production and improving production efficiency, and reducing both labor costs and material costs.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An injection mold for an automobile door trim panel, comprising a movable platen and a fixed platen disposed front and rear and cooperating with each other, and a movable mold core and a fixed mold core embedded in the rear side of the movable platen and the front side of the fixed platen and cooperating with each other, characterized in that: A seat block is formed forward on the end surface of the fixed mold core, and a forming convex seat is formed outward on the end surface of the movable mold core. Correspondingly, a forming cavity that cooperates with the forming convex seat is formed at the left corner of the seat block; a positioning notch that cooperates with the right corner of the seat block end is formed on the left inner wall of the forming convex seat; A first parting groove and a second parting groove are formed outwardly on the bottom surface of the convex seat, and a first parting component and a second parting component are respectively provided in the first parting groove and the second parting groove; The first parting assembly includes a first fixed parting block fixed to the upper outer wall of the seat block, a first movable parting block movably connected to the end surface of the fixed mold core to have the function of vertical movement up and down and cooperating with the first fixed parting block and located above the first fixed parting block, and a first oblique traction column obliquely inserted in the first movable parting block, wherein the front end of the first oblique traction column is fixed to the movable mold core; The second parting assembly includes a second fixed parting block fixed to the lower outer wall of the seat block, a second movable parting block movably connected to the end surface of the fixed mold core to have the function of vertical movement up and down and cooperating with the second fixed parting block and located below the second fixed parting block, and a second oblique traction column obliquely inserted in the second movable parting block, wherein the front end of the second oblique traction column is fixed to the movable mold core; A first pressing block is formed on the first moving parting block and is located above the first fixed parting block. A first parting notch is formed at the lower rear corner of the first pressing block. A first step block is formed downward on the bottom surface of the first parting notch. Correspondingly, a second parting notch is formed on the upper side of the first fixed parting block. A second step block is formed upward on the inner wall of the second parting notch. The upper outer wall of the second step block cooperates with the lower outer wall of the first step block. A second pressing block located above the second fixed parting block is formed forward on the second dynamic parting block, and a third parting notch is provided at the upper rear corner of the second pressing block. Correspondingly, a fourth parting notch is provided on the lower side of the second fixed parting block, and a third step block is formed downward on the inner wall of the fourth parting notch, and the lower outer wall of the third step block cooperates with the bottom surface of the third parting notch.

2. The injection mold for an automobile door trim panel according to claim 1, characterized in that: A first protrusion is formed upward on the front side of the bottom of the first parting notch, and correspondingly, a first recess that cooperates with the first protrusion is formed on the front inner wall of the first parting notch.

3. The injection mold for an automobile door trim panel according to claim 1, characterized in that: A second protrusion is formed forward on the front side of the second fixed parting block, and correspondingly, a second recess that cooperates with the second protrusion is formed on the front inner wall of the third parting notch.

4. The injection mold for an automobile door trim panel according to claim 1, characterized in that: A first stopper is vertically formed downwardly on the right side edge of the first step block. Correspondingly, a first limiting notch that cooperates with the first stopper is formed at the upper right corner of the first fixed parting block.

5. The injection mold for an automobile door trim panel according to claim 1, characterized in that: A second stop block is vertically arranged upwardly on the right edge of the bottom surface of the third parting notch. Correspondingly, a second limiting notch that cooperates with the second stop block is opened at the lower right corner of the second fixed parting block.

6. The injection mold for an automobile door trim panel according to claim 1, characterized in that: The lower side of the first fixed parting block is provided with a first semicircular groove and a second semicircular groove which are respectively distributed on the left and right and parallel to each other. Correspondingly, the upper outer wall of the seat block is provided with a third semicircular groove and a fourth semicircular groove which are respectively spliced ​​with the first semicircular groove and the second semicircular groove.

7. The injection mold for an automobile door trim panel according to claim 1, characterized in that: A forming notch is provided at the upper left corner of the second fixed parting block, a corner notch is provided on the lower outer wall of the seat block, and a first arc-shaped groove and a fifth semicircular groove are provided on the bottom surface of the forming notch, which are respectively distributed on the left and right and parallel to each other. Correspondingly, a second arc-shaped groove that cooperates with the first arc-shaped groove is provided at the corner of the inner wall of the corner notch, and a sixth semicircular groove that cooperates with the fifth semicircular groove is provided on the upper inner wall of the corner notch.

8. The injection mold for an automobile door trim panel according to claim 1, characterized in that: A plurality of rib plate grooves are further provided on the bottom surface of the second parting notch, which are distributed in parallel from left to right and are all located on the left side of the second step block.

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