Injection mold for automobile cover plate

Abstract

The utility model relates to an injection mold for an automobile cover plate. The injection mold comprises a movable mold block and a fixed mold block 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 block and the front side of the fixed mold block and are matched with each other, a plurality of buckle forming mechanisms which are sequentially distributed from top to bottom are further arranged in the fixed mold core, and a plurality of perforating mechanisms which are sequentially distributed from top to bottom are further arranged between the movable mold block and the fixed mold block; the punching mechanism comprises a sliding block which is movably connected to the right edge of the front side of the fixed module and has a left-right translation function, a second angle ejector rod which is obliquely arranged in the sliding block in a penetrating manner, and a forming rod which is transversely and detachably fixed to the left side of the sliding block; according to the utility model, a plurality of buckles are formed at the same side of the cover plate in a passive core-pulling manner by virtue of the plurality of buckle forming mechanisms, and any number of cylinders do not need to be mounted on the movable module, so that the manufacturing cost of the mold is greatly reduced, and the mounting and debugging steps are simplified.

Description

Technical Field

[0001] The utility model relates to an injection mold for an automobile cover plate. Background Art

[0002] The interior trim panels of car doors are designed with a protruding step area in the middle, and a cover plate is installed on the top of the step area. The cover plate is embedded with a handle box for closing the door and a switch group for controlling the lifting of the windows. Currently, the interior trim panels and cover plates of car doors on the market are all plastic parts, so the cover plates are made with the help of matching injection molds and in injection molding equipment.

[0003] Since multiple clips for easy disassembly need to be formed on one side of the cover plate, and the ends of the clips are designed to be in the shape of reverse hooks, in order to form the above-mentioned clip structure, the existing cover plate injection molds all install cylinders that can actively pull the core on the dynamic module, and each clip must be equipped with a separate cylinder, which greatly increases the production cost of the mold. In addition, the installation and debugging steps are also relatively cumbersome and need 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 an automobile cover that greatly reduces the production cost and simplifies the installation and debugging steps.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: an injection mold for an automobile cover, comprising a movable die block and a fixed die block respectively arranged front and rear and cooperating with each other, a movable mold core and a fixed mold core respectively embedded in the rear side of the movable die block and the front side of the fixed die block and cooperating with each other, a first arc-shaped molding cavity is formed on the end surface of the fixed mold core, and correspondingly, a second arc-shaped molding cavity cooperating with the first arc-shaped molding cavity is formed on the end surface of the movable mold core, characterized in that:

[0006] The fixed mold core is also provided with a plurality of snap-fit ​​molding mechanisms distributed sequentially from top to bottom, the snap-fit ​​molding mechanisms including a first inclined ejector rod that is tilted and movably inserted into the fixed mold core, a molding block that is movably embedded in the bottom of the first arc-shaped molding cavity and has the function of vertical movement up and down, and an auxiliary block that is embedded in the bottom of the first arc-shaped molding cavity and cooperates with the molding block. The front end of the first inclined ejector rod is fixed to the root of the molding block.

[0007] A first protrusion is formed upward or downward at the end of the forming block, a second protrusion is formed upward or downward at the end of the first protrusion, and a step block is formed between an outer wall of one side of the second protrusion and the end of the first protrusion;

[0008] A plurality of perforation mechanisms are further provided between the movable module and the fixed module, and are distributed sequentially from top to bottom. The number of the perforation mechanisms is equal to the number of the buckle forming mechanisms, and each of the perforation mechanisms is provided to the right of a corresponding buckle forming mechanism.

[0009] The perforation mechanism includes a slider movably connected to the front right edge of the fixed module to have a left-right translation function, a second inclined push rod obliquely inserted into the slider, and a forming rod laterally and detachably fixed to the left side of the slider, and the front end of the second inclined push rod is fixed to the movable module;

[0010] The end of the forming rod in each punching mechanism is movably inserted and connected to the fixed mold core and the auxiliary block in a corresponding buckle forming mechanism to the left.

[0011] Preferably, the front side of the fixed mold core is provided with a plurality of first molding cavities distributed sequentially from top to bottom, the number of the first molding cavities is equal to the number of the snap-fit ​​molding mechanisms, and the molding blocks in each snap-fit ​​molding mechanism are movably arranged in a corresponding first molding cavity.

[0012] Preferably, a second molding cavity is opened on the upper or lower inner wall of each first molding cavity, a third molding cavity is opened on the right side of the bottom surface of each second molding cavity, the auxiliary blocks in each snap-fit ​​molding mechanism are embedded in a corresponding third molding cavity, and a first molding groove is formed between each auxiliary block and the left inner wall of a corresponding third molding cavity.

[0013] Preferably, a forming notch is provided at the left corner of the end of the auxiliary block, and a splicing cavity is formed between the forming notch and the second forming cavity. Each of the splicing cavities cooperates with the first protrusion, the second protrusion and the step block on a corresponding forming block.

[0014] Preferably, two second molding grooves distributed up and down are opened on the right edge of the opening of the third molding cavity, and correspondingly, two third molding grooves distributed up and down are opened on the left edge of the bottom of the molding notch, and the positions of the two third molding grooves are respectively arranged relative to the positions of the two second molding grooves.

[0015] Preferably, a through hole is opened between the left and right outer walls of the auxiliary block, and the end of the forming rod in each perforation mechanism moves to the left through the fixed mold core and the through hole in a corresponding auxiliary block and extends into a corresponding first forming groove.

[0016] Preferably, it further comprises an end plate movably connected to the rear side of the fixed module to have a forward and backward translation function, and the rear end of the first inclined ejector rod in each snap-fit ​​forming mechanism is movably and rotatably connected to the end plate.

[0017] Preferably, the snap-fit ​​molding mechanism further includes a base fixed to the front side of the end plate and a seat block movably connected to the base to have the function of moving up and down, and the rear end of the first inclined ejector rod is rotatably connected to the seat block.

[0018] Preferably, the end of the shaping rod is formed with a rectangular block outwardly.

[0019] Compared with the existing technology, the advantages of the present invention are: the present invention uses multiple clip forming mechanisms to passively pull the core to form multiple clips on the same side of the cover plate, without the need to install any number of cylinders on the dynamic module, thereby greatly reducing the production cost of the mold and simplifying the installation and debugging steps. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is the exploded structure diagram of the left rear side of the utility model;

[0022] Figure 3 This is an exploded structural diagram of the left rear side of the buckle forming mechanism of the present invention;

[0023] Figure 4 This is a right front structural diagram of the fixed mold core of the present utility model;

[0024] Figure 5 This is a partial enlarged structural diagram of the right front side of the first molding cavity, the second molding cavity, the third molding cavity and the auxiliary block of the utility model;

[0025] Figure 6 This is a left front structural diagram of the auxiliary block of the present utility model;

[0026] Figure 7 This is a structural diagram of the right rear side of the punching mechanism 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 an automobile cover includes a movable mold block 2 and a fixed mold block 1 arranged front and rear and cooperating with each other, a movable mold core 3 and a fixed mold core 4 respectively embedded in the rear side of the movable mold block 2 and the front side of the fixed mold block 1 and cooperating with each other, a first arc-shaped mold cavity 41 is formed on the end surface of the fixed mold core 4, and correspondingly, a second arc-shaped mold cavity 31 is formed on the end surface of the movable mold core 3 and cooperating with the first arc-shaped mold cavity 41;

[0030] The fixed mold core 4 is also provided with a plurality of snap-fit ​​molding mechanisms 6 distributed sequentially from top to bottom. The snap-fit ​​molding mechanisms 6 include a first inclined ejector rod 62 that is tilted and movably inserted into the fixed mold core 4, a molding block 61 that is movably embedded in the bottom of the first arc-shaped molding cavity 41 and has the function of vertical movement up and down, and an auxiliary block 65 that is embedded in the bottom of the first arc-shaped molding cavity 41 and cooperates with the molding block 61. The front end of the first inclined ejector rod 62 is fixed to the root of the molding block 61.

[0031] A first protrusion 611 is formed upward or downward at the end of the forming block 61, a second protrusion 612 is formed upward or downward at the end of the first protrusion 611, and a step block 613 is formed between an outer wall of one side of the second protrusion 612 and the end of the first protrusion 611;

[0032] A plurality of perforation mechanisms 7 are further provided between the movable module 2 and the fixed module 1, and are distributed sequentially from top to bottom. The number of perforation mechanisms 7 is equal to the number of buckle forming mechanisms 6, and each perforation mechanism 7 is provided to the right of a corresponding buckle forming mechanism 6;

[0033] The punching mechanism 7 includes a slider 71 movably connected to the front right edge of the fixed module 1 to enable left and right translation, a second inclined push rod 72 obliquely inserted into the slider 71, and a shaping rod 73 laterally and detachably fixed to the left side of the slider 71. The front end of the second inclined push rod 72 is fixed to the movable module 2.

[0034] The end of the forming rod 73 in each punching mechanism 7 is movably inserted and connected to the fixed mold core 4 and the auxiliary block 65 in the corresponding buckle forming mechanism 6 to the left.

[0035] The front side of the fixed mold core 4 is provided with a plurality of first molding cavities 42 distributed sequentially from top to bottom. The number of the first molding cavities 42 is equal to the number of the snap-fit ​​molding mechanisms 6 . The molding blocks 61 in each snap-fit ​​molding mechanism 6 are movably arranged in a corresponding first molding cavity 42 .

[0036] A second molding cavity 43 is provided on the upper or lower inner wall of each first molding cavity 42, and a third molding cavity 44 is provided on the right side of the bottom surface of each second molding cavity 43. The auxiliary block 65 in each snap molding mechanism 6 is embedded in a corresponding third molding cavity 44, and a first molding groove 8 is formed between each auxiliary block 65 and the left inner wall of the corresponding third molding cavity 44.

[0037] A forming notch 651 is provided at the left corner of the end of the auxiliary block 65, and a splicing cavity 9 is formed between the forming notch 651 and the second forming cavity 43. Each splicing cavity 9 cooperates with the first protrusion 611, the second protrusion 612 and the step block 613 on a corresponding forming block 61.

[0038] Two second molding grooves 45 are respectively distributed up and down at the right edge of the opening of the third molding cavity 44. Correspondingly, two third molding grooves 652 are respectively distributed up and down at the left edge of the bottom of the molding notch 651. The positions of the two third molding grooves 652 are respectively arranged opposite to the positions of the two second molding grooves 45.

[0039] A through hole 653 is provided between the left and right outer walls of the auxiliary block 65. The end of the forming rod 73 in each perforating mechanism 7 moves to the left through the fixed mold core 4 and the through hole 653 in the corresponding auxiliary block 65 and extends into the corresponding first forming groove 8.

[0040] An injection mold for an automobile cover also includes an end plate 5 movably connected to the rear side of a fixed module 1 to have a forward and backward translation function, and the rear end of the first inclined push rod 62 in each snap molding mechanism 6 is movably and rotatably connected to the end plate 5.

[0041] The snap-fit ​​molding mechanism 6 also includes a base 63 fixed to the front side of the end plate 5 and a seat block 64 movably connected to the base 63 to have the function of moving up and down. The rear end of the first inclined push rod 62 is rotatably connected to the seat block 64.

[0042] A rectangular block 731 is formed outwardly at the end of the shaping rod 73 .

[0043] Working principle:

[0044] Fix the end plate 5 and the fixed module 1 and drive the movable module 2 to move backward until the rear side of the movable module 2 and the front side of the fixed module 1 are assembled with each other. At this time, the end plate 5 and the fixed module 1 are separated by a certain distance; at this time, the first arc-forming cavity 41 on the fixed mold core 4 and the second arc-forming cavity 31 on the movable mold core 3 are assembled with each other.

[0045] Next, the end plate 5 is driven to move forward to drive the first inclined push rod 62 in each snap-fit ​​molding mechanism 6 to move forward, thereby forcing each molding block 61 to move toward a nearby splicing cavity 9. When the end plate 5 is fitted with the fixed module 1, the first protrusion 611, the second protrusion 612 and the step block 613 on the molding block 61 are all embedded in the splicing cavity 9. During this process, each first inclined push rod 62 will move upward or downward and rotate while moving forward with the help of the base 63 and the seat block 64.

[0046] During the backward movement of the moving module 2, the second inclined push rod 72 in each perforating mechanism 7 will be driven to move backward, thereby forcing each slider 71 to move to the left, thereby driving the rectangular block 731 on each forming rod 73 to move to the left through the fixed mold core 4 and the through hole 653 in the corresponding auxiliary block 65 and extend into the corresponding first forming groove 8 until the end of the rectangular block 731 is tightly pressed against the left inner wall of the corresponding third forming cavity 44.

[0047] Afterwards, the molten material can be passed through the runner provided in the movable module 2 into the space between the first arc-shaped molding cavity 41 and the second arc-shaped molding cavity 31 , and the cover plate 10 can be formed after cooling. The above principle is the prior art.

[0048] Each buckle forming mechanism 6 forms a buckle 101 on the rear side of the cover plate 10 , and each rectangular block 731 forms a square hole in the buckle 101 .

[0049] The utility model uses multiple clip forming mechanisms 6 to form multiple clips 101 on the same side of the cover plate 10 in a passive core pulling manner, without the need to install any number of cylinders on the dynamic module 2, thereby greatly reducing the production cost of the mold and simplifying the installation and debugging steps.

[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 cover, comprising a movable die block and a fixed die block disposed front and rear and cooperating with each other, a movable mold core and a fixed mold core embedded in the rear side of the movable die block and the front side of the fixed die block and cooperating with each other, a first arc-shaped molding cavity formed on an end surface of the fixed mold core, and a second arc-shaped molding cavity correspondingly formed on an end surface of the movable mold core, characterized in that: The fixed mold core is also provided with a plurality of snap-fit ​​molding mechanisms distributed sequentially from top to bottom, the snap-fit ​​molding mechanisms including a first inclined ejector rod that is tilted and movably inserted into the fixed mold core, a molding block that is movably embedded in the bottom of the first arc-shaped molding cavity and has the function of vertical movement up and down, and an auxiliary block that is embedded in the bottom of the first arc-shaped molding cavity and cooperates with the molding block. The front end of the first inclined ejector rod is fixed to the root of the molding block. A first protrusion is formed upward or downward at the end of the forming block, a second protrusion is formed upward or downward at the end of the first protrusion, and a step block is formed between an outer wall of one side of the second protrusion and the end of the first protrusion; A plurality of perforation mechanisms are further provided between the movable module and the fixed module, and are distributed sequentially from top to bottom. The number of the perforation mechanisms is equal to the number of the buckle forming mechanisms, and each of the perforation mechanisms is provided to the right of a corresponding buckle forming mechanism. The perforation mechanism includes a slider movably connected to the front right edge of the fixed module to have a left-right translation function, a second inclined push rod obliquely inserted into the slider, and a forming rod laterally and detachably fixed to the left side of the slider, and the front end of the second inclined push rod is fixed to the movable module; The end of the forming rod in each punching mechanism is movably inserted and connected to the fixed mold core and the auxiliary block in a corresponding buckle forming mechanism to the left.

2. The injection mold for an automobile cover according to claim 1, characterized in that: The front side of the fixed mold core is provided with a plurality of first molding cavities distributed in sequence from top to bottom, the number of the first molding cavities is equal to the number of the snap molding mechanisms, and the molding blocks in each snap molding mechanism are movably arranged in a corresponding first molding cavity.

3. The injection mold for an automobile cover according to claim 2, characterized in that: A second molding cavity is provided on the upper or lower inner wall of each of the first molding cavities, and a third molding cavity is provided on the right side of the bottom surface of each of the second molding cavities. The auxiliary blocks in each snap-fit ​​molding mechanism are embedded in a corresponding third molding cavity, and a first molding groove is formed between each auxiliary block and the left inner wall of a corresponding third molding cavity.

4. The injection mold for an automobile cover according to claim 3, characterized in that: A forming notch is provided at the left corner of the end of the auxiliary block, and a splicing cavity is formed between the forming notch and the second forming cavity. Each of the splicing cavities cooperates with the first protrusion, the second protrusion and the step block on a corresponding forming block.

5. The injection mold for an automobile cover according to claim 4, characterized in that: Two second molding grooves are respectively distributed up and down on the right edge of the opening of the third molding cavity. Correspondingly, two third molding grooves are respectively distributed up and down on the left edge of the bottom of the molding notch. The positions of the two third molding grooves are respectively arranged relative to the positions of the two second molding grooves.

6. The injection mold for an automobile cover according to claim 5, characterized in that: A through hole is provided between the left and right outer walls of the auxiliary block, and the end of the forming rod in each punching mechanism moves leftward through the fixed mold core and the through hole in a corresponding auxiliary block and extends into a corresponding first forming groove.

7. The injection mold for an automobile cover according to claim 1, characterized in that: It also includes an end plate movably connected to the rear side of the fixed module to have a forward and backward translation function, and the rear end of the first inclined push rod in each clip forming mechanism is movably and rotatably connected to the end plate.

8. The injection mold for an automobile cover according to claim 7, characterized in that: The buckle forming mechanism also includes a base fixed to the front side of the end plate and a seat block movably connected to the base to have the function of moving up and down, and the rear end of the first inclined ejector rod is rotatably connected to the seat block.

9. The injection mold for an automobile cover according to claim 1, characterized in that: The end of the shaping rod is formed with a rectangular block outwardly.

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