Injection mold for lower interior trimming panel assembly of automobile back door

Abstract

The utility model relates to the technical field of molds, in particular to an injection mold for an automobile back door lower trim panel assembly, which comprises a fixed mold plate, the bottom of the fixed mold plate is connected with a mold plate support frame, an ejector plate is arranged below the fixed mold plate, a movable mold plate is arranged above the fixed mold plate, a core-pulling slide block mechanism is arranged on the side wall of the movable mold plate, and a core-pulling slide block is arranged on the side wall of the movable mold plate. A core-pulling sliding block mechanism is arranged on the fixed mold plate, a driving oil cylinder is arranged on the movable mold plate, and a buffering sliding block mechanism is arranged between the fixed mold plate and the movable mold plate. The injection mold is internally provided with the core-pulling sliding block mechanism, the buffering sliding block mechanism, a driving oil cylinder, a connecting block, a rocker base, a rocker sliding block and a rocker ejector pin; by means of the core-pulling sliding block mechanism, the buffering sliding block mechanism, the driving oil cylinder, the connecting block, the rocker base, the rocker sliding block, the rocker ejector pin and interaction among all the components, the device is smoother in the using process, meanwhile, plastic part demolding can be rapidly achieved, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold for an assembly of an interior trim panel under a rear door of an automobile. Background Art

[0002] The current injection mold for the lower interior panel assembly of the vehicle rear door is not convenient for demolding and core pulling. When the ejector is ejected, there will be an ejection angle between the ejector and the fixed template, which makes it difficult to eject the plastic part. The mold is not convenient to separate when the mold is opened. After the mold is closed, a rigid collision will occur between the fixed template and the fixed template, which will affect the service life of the mold. At the same time, when the mold is closed, there will be a positioning deviation between the fixed template and the movable template. When the mold is mounted, the fixed template and the movable template will be demolded. In view of the above problems, it is necessary to provide an injection mold for the lower interior panel assembly of the vehicle rear door. Utility Model Content

[0003] The utility model aims to provide an injection mold for an automobile back door lower interior trim panel assembly to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An injection mold for an assembly of a lower interior trim panel of a car back door, comprising a fixed mold plate, a mold plate support frame is connected to the bottom of the fixed mold plate, an ejector plate is arranged below the fixed mold plate, a movable mold plate is arranged above the fixed mold plate, a core-pulling slider mechanism is arranged on the side wall of the movable mold plate, a buffer slider mechanism is arranged between the fixed mold plate and the movable mold plate, a limited position locking mechanism is connected to the opposite side walls of the fixed mold plate and the movable mold plate, a plurality of groups of driving cylinders are symmetrically arranged on the side wall of the fixed mold plate, a connecting block is connected to the side wall of the driving end of the driving cylinder, the connecting block is connected to the side wall of the ejector plate by bolts, a plurality of groups of rocker bases are arranged on the end surface of the ejector plate, a rocker slider is connected to the rocker base, and a rocker ejector is connected to the rocker slider;

[0006] The core-pulling slider mechanism includes an active oil cylinder, which is connected to the side wall of the moving template by bolts, a moving slider is connected to the driving end of the active oil cylinder, a fixed slide rail is provided on the moving slider, the fixed slide rail is connected to the side wall of the moving template, a guide slider is connected to the side wall of the moving slider, and a moving core block is connected to the guide slider;

[0007] The buffer slider mechanism comprises a buffer slider, the buffer slider is slidably connected to the end surface of the fixed template through a limit slider, a buffer spring is symmetrically connected in the inner cavity of the buffer slider, an oblique guide rod is connected to the end surface of the buffer slider, and the oblique guide rod is connected to the bottom of the movable template through a connecting seat;

[0008] The limit locking mechanism includes a fixed connecting seat, which is connected to the side wall of the movable template, the bottom of the fixed connecting seat is connected to the limit slider, the side wall of the limit slider is symmetrically provided with fixed teeth, a limit connecting plate is arranged below the fixed connecting seat, the limit connecting plate is connected to the side wall of the fixed template, a positioning groove is arranged on the limit connecting plate and corresponding to the limit slider, a double-headed oil cylinder is connected to the side wall of the limit connecting plate by bolts, and the driving end of the double-headed oil cylinder is provided with a fixed block through the connecting plate and corresponding to the fixed teeth.

[0009] As a preferred solution of the utility model, a sliding groove is provided on the rocker base and corresponds to the rocker slider, wherein the rocker slider and the sliding groove are connected in a sliding manner.

[0010] As a preferred solution of the utility model, a slide groove is provided on the fixed slide rail and corresponds to the movable slide block, wherein the movable slide block and the slide groove are connected in a sliding manner.

[0011] As a preferred solution of the utility model, a slide groove is provided on the movable core block and corresponds to the guide slider, wherein the guide slider is connected to the slide groove by sliding connection.

[0012] As a preferred solution of the utility model, an inclined guide surface is provided on the movable slider, and a connecting hole is opened on the end surface of the buffer slider and corresponds to the inclined guide rod, wherein the inclined guide rod and the connecting hole are matched in a clearance fit.

[0013] As a preferred solution of the utility model, the cooperation mode between the limit sliding block and the positioning slot is clearance cooperation, and the side wall of the fixed block is provided with engaging teeth corresponding to the fixed teeth.

[0014] As a preferred solution of the utility model, a limiting groove is provided on the side wall of the limiting connecting plate and corresponds to the fixed clamping block, wherein the fixed clamping block and the limiting groove are connected in a sliding manner.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, a core-pulling slider mechanism, a buffer slider mechanism, a driving oil cylinder, a connecting block, a rocker base, a rocker slider and a rocker ejector pin are arranged in the injection mold of the lower interior trim panel assembly of the automobile back door, so that the core-pulling slider mechanism, the buffer slider mechanism, the driving oil cylinder, the connecting block, the rocker base, the rocker slider, the rocker ejector pin and the interaction between the various components are utilized, so that the device is smoother during use, and at the same time, the plastic part can be quickly demoulded, thereby improving the demoulding efficiency.

[0017] In the utility model, a limit locking mechanism is arranged in the injection mold of the lower interior trim panel assembly of the automobile back door, so that the limit slider, the fixed tooth pattern, the limit connecting plate, the positioning card slot, the double-headed oil cylinder and the fixed card block in the limit locking mechanism are used to interact with each other, so that when the mold is closed, the fixed mold plate and the movable mold plate can be accurately positioned, and when the mold is upper molded, the fixed card block can be meshed with the fixed tooth pattern, so that the fixed mold plate and the movable mold plate are fixed, and demolding is prevented when the mold is upper molded. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front and side structures of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of some structures;

[0020] Figure 3 This is a structural schematic diagram of the core-pulling slider mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the back structure of the core-pulling slider mechanism of the utility model;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the explosion structure;

[0023] Figure 6 This is a schematic diagram of the structure of the buffer slider mechanism of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the limit locking mechanism of the utility model;

[0025] Figure 8 For this utility model Figure 4 Schematic diagram of the explosion structure.

[0026] In the figure: 1, fixed template; 2, template support frame; 3, ejector plate; 4, movable template; 5, core-pulling slider mechanism; 6, buffer slider mechanism; 7, limit locking mechanism; 8, driving cylinder; 9, connecting block; 10, rocker base; 11, rocker slider; 12, rocker ejector; 501, active cylinder; 502, moving slider; 503, fixed slide rail; 504, guide slider; 505, moving core block; 601, buffer slider; 602, buffer spring; 603, oblique guide rod; 701, fixed connecting seat; 702, limit slider; 703, fixed tooth pattern; 704, limit connecting plate; 705, positioning slot; 706, double-head cylinder; 707, fixed block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0031] For example, please refer to Figure 1-8 , the utility model provides a technical solution:

[0032] An injection mold for an assembly of a lower interior trim panel of a car back door, comprising a fixed mold plate 1, a mold plate support frame 2 is connected to the bottom of the fixed mold plate 1, an ejector plate 3 is arranged below the fixed mold plate 1, a movable mold plate 4 is arranged above the fixed mold plate 1, a core-pulling slider mechanism 5 is arranged on the side wall of the movable mold plate 4, a buffer slider mechanism 6 is arranged between the fixed mold plate 1 and the movable mold plate 4, a limited position locking mechanism 7 is connected to the opposite side walls of the fixed mold plate 1 and the movable mold plate 4, a plurality of groups of driving cylinders 8 are symmetrically arranged on the side wall of the fixed mold plate 1, a connecting block 9 is connected to the side wall of the driving end of the driving cylinder 8, the connecting block 9 is connected to the side wall of the ejector plate 3 by bolts, a plurality of groups of rocker bases 10 are arranged on the end surface of the ejector plate 3, a rocker slider 11 is connected to the rocker base 10, and a rocker ejector pin 12 is connected to the rocker slider 11;

[0033] Furthermore, a slide groove is provided on the rocker base 10 and corresponds to the rocker slider 11, wherein the rocker slider 11 is connected to the slide groove by a sliding connection, so that the device is more smoothly used;

[0034] In this embodiment, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , when the core pulling slider mechanism 5 includes an active oil cylinder 501, and the active oil cylinder 501 is connected to the side wall of the movable template 4 by bolts, the active oil cylinder 501 is started to make the active oil cylinder 501 move upward, and a moving slider 502 is connected to the driving end of the active oil cylinder 501, and a fixed slide rail 503 is arranged on the moving slider 502, and the fixed slide rail 503 is connected to the side wall of the movable template 4, and a guide slider 504 is connected to the side wall of the moving slider 502, and a moving core block 505 is connected to the guide slider 504, and a slide groove is provided on the fixed slide rail 503 and corresponding to the moving slider 502, and the moving slider 502 is driven to move upward under the condition that the connection mode between the moving slider 502 and the slide groove is a sliding connection, and a slide groove is provided on the moving core block 505 and corresponding to the guide slider 504, and the connection mode between the guide slider 504 and the slide groove is a sliding connection, and then the moving core block 505 is driven to move outward, and then the demoulding and core pulling are realized;

[0035] Furthermore, a slide groove is provided on the fixed slide rail 503 and corresponds to the movable slide block 502, wherein the movable slide block 502 is connected to the slide groove by sliding connection, a slide groove is provided on the movable core block 505 and corresponds to the guide slide block 504, wherein the guide slide block 504 is connected to the slide groove by sliding connection, and an inclined guide surface is provided on the movable slide block 502, so that the device is more convenient in use;

[0036] In this embodiment, reference Figure 1 , Figure 2 and Figure 6The buffer slider mechanism 6 includes a buffer slider 601, which is slidably connected to the end surface of the fixed template 1 through a limiting slide, and a buffer spring 602 is symmetrically connected in the inner cavity of the buffer slider 601. An oblique guide rod 603 is connected to the end surface of the buffer slider 601, and the oblique guide rod 603 is connected to the bottom of the movable template 4 through a connecting seat, and the buffer slider 601 is slidably connected to the end surface of the fixed template 1 through a limiting slide, and a buffer spring 602 is symmetrically connected in the inner cavity of the buffer slider 601. A connecting hole is opened on the end surface of the buffer slider 601 and corresponds to the oblique guide rod 603, wherein the matching mode of the oblique guide rod 603 and the connecting hole is a clearance match. When the mold is opened, the oblique guide rod 603 can be used to control the buffer slider 601 to move outward and separate from the mold. After the mold is closed, the buffer spring 602 can be used to realize the buffering of the buffer slider 601;

[0037] Furthermore, a connection hole is provided on the end surface of the buffer sliding block 601 and corresponds to the oblique guide rod 603 , wherein the oblique guide rod 603 and the connection hole are matched in a clearance fit.

[0038] In this embodiment, reference Figure 1 , Figure 2 , Figure 7 and Figure 8 The limit locking mechanism 7 includes a fixed connection seat 701, which is connected to the side wall of the movable template 4. The bottom of the fixed connection seat 701 is connected to a limit slider 702. The side wall of the limit slider 702 is symmetrically provided with fixed teeth 703. A limit connection plate 704 is arranged below the fixed connection seat 701. The limit connection plate 704 is connected to the side wall of the fixed template 1. A positioning groove 705 is arranged on the limit connection plate 704 and corresponds to the limit slider 702. A double-headed oil cylinder 706 is connected to the side wall of the limit connection plate 704 by bolts. The driving end of the double-headed oil cylinder 706 is provided with a fixed block 707 through the connection plate and corresponding to the fixed teeth 703. In the cooperation between the limit slider 702 and the positioning groove 705, Under the condition that the mode is clearance fit, the fixed template 1 and the movable template 4 can be accurately positioned. When the upper mold is applied, the double-headed oil cylinder 706 is started to make the driving end of the double-headed oil cylinder 706 move in the relative direction, and a limiting groove is provided on the side wall of the limiting connecting plate 704 and corresponds to the fixed clamping block 707, wherein the connection mode between the fixed clamping block 707 and the limiting groove is a sliding connection, which drives the fixed clamping block 707 to move in the relative direction. Under the condition that the matching mode between the limiting slider 702 and the positioning clamping groove 705 is clearance fit, and the side wall of the fixed clamping block 707 and corresponding to the fixed tooth pattern 703 are provided with a clamping tooth pattern, the fixed clamping block 707 is meshed with the fixed tooth pattern 703, thereby completing the fixation between the fixed template 1 and the movable template 4;

[0039] Furthermore, the limiting slider 702 and the positioning slot 705 are matched in a clearance fit, and a snap-fitting tooth pattern is provided on the side wall of the fixed block 707 corresponding to the fixed tooth pattern 703, and a limiting groove is provided on the side wall of the limiting connecting plate 704 corresponding to the fixed block 707, wherein the connection between the fixed block 707 and the limiting groove is a sliding connection, so that the device can be used more smoothly during use.

[0040] The working process of the utility model is as follows: when the injection mold of the lower interior trim panel assembly of the automobile back door is used, the driving cylinder 8 is started by controlling the switch, so that the driving end of the driving cylinder 8 moves upward, and a connecting block 9 is connected to the side wall of the driving end of the driving cylinder 8, and the connecting block 9 drives the ejector plate 3 to move upward under the condition of being connected to the side wall of the ejector plate 3 by bolts, so as to realize the ejection of the ejector, and multiple groups of rocker bases 10 are arranged on the end surface of the ejector plate 3, and a rocker slider 11 is connected to the rocker base 10, and a rocker ejector 12 is connected to the rocker slider 11, and a slide groove is opened on the rocker base 10 and corresponding to the rocker slider 11, wherein the connection mode of the rocker slider 11 and the slide groove is a sliding connection, and when the rocker ejector 12 is ejected, the rotation angle of the rocker ejector 12 is used to compensate the ejection angle, so as to realize the ejection of the plastic part;

[0041] When the plastic part is demoulded, the active oil cylinder 501 is started to move the active oil cylinder 501 upwards, and a slide groove is provided on the fixed slide rail 503 corresponding to the movable slide block 502, wherein the movable slide block 502 is connected to the slide groove in a sliding manner, thereby driving the movable slide block 502 to move upwards, and a slide groove is provided on the movable core block 505 corresponding to the guide slide block 504, wherein the guide slide block 504 is connected to the slide groove in a sliding manner, thereby driving the movable core block 505 to move outwards, thereby realizing demoulding and core pulling;

[0042] The buffer slider 601 is slidably connected to the end surface of the fixed mold plate 1 through the limiting slide plate, and the buffer spring 602 is symmetrically connected to the inner cavity of the buffer slider 601. A connecting hole is opened on the end surface of the buffer slider 601 and corresponds to the oblique guide rod 603. Under the condition that the oblique guide rod 603 and the connecting hole are matched in a clearance fit, when the mold is opened, the oblique guide rod 603 can be used to control the buffer slider 601 to move outward and separate from the mold. After the mold is closed, the buffer spring 602 can be used to achieve buffering of the buffer slider 601;

[0043] When the mold is closed, under the condition that the limiting slider 702 and the positioning slot 705 are clearance-fitted, the fixed mold plate 1 and the movable mold plate 4 can be accurately positioned. When the mold is upper, the double-headed oil cylinder 706 is started to make the driving end of the double-headed oil cylinder 706 move in the relative direction, and a limiting groove is provided on the side wall of the limiting connecting plate 704 corresponding to the fixed block 707, wherein the fixed block 707 is connected to the limiting groove in a sliding connection to drive the fixed block 707 to move in the relative direction. Under the condition that the limiting slider 702 and the positioning slot 705 are clearance-fitted and the side wall of the fixed block 707 is provided with a snap-fit ​​tooth pattern corresponding to the fixed tooth pattern 703, the fixed block 707 is meshed with the fixed tooth pattern 703, thereby completing the fixation between the fixed mold plate 1 and the movable mold plate 4.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for an automobile back door lower interior trim panel assembly, comprising a fixed mold plate (1), characterized in that: The bottom of the fixed template (1) is connected to a template support frame (2), a pin plate (3) is arranged below the fixed template (1), a movable template (4) is arranged above the fixed template (1), a core-pulling slider mechanism (5) is arranged on the side wall of the movable template (4), a buffer slider mechanism (6) is arranged between the fixed template (1) and the movable template (4), and the opposite side walls of the fixed template (1) and the movable template (4) are connected to a limited position locking mechanism (7), a plurality of groups of driving cylinders (8) are symmetrically arranged on the side wall of the fixed template (1), a connecting block (9) is connected to the side wall of the driving end of the driving cylinder (8), and the connecting block (9) is connected to the side wall of the pin plate (3) by bolts, and a plurality of groups of rocker bases (10) are arranged on the end surface of the pin plate (3), a rocker slider (11) is connected to the rocker base (10), and a rocker pin (12) is connected to the rocker slider (11); The core-pulling slider mechanism (5) comprises an active oil cylinder (501), the active oil cylinder (501) is connected to the side wall of the movable platen (4) by means of bolts, the driving end of the active oil cylinder (501) is connected to a movable slider (502), a fixed slide rail (503) is arranged on the movable slider (502), the fixed slide rail (503) is connected to the side wall of the movable platen (4), a guide slider (504) is connected to the side wall of the movable slider (502), and a movable core block (505) is connected to the guide slider (504); The buffer slider mechanism (6) comprises a buffer slider (601), the buffer slider (601) is slidably connected to the end surface of the fixed template (1) via a limit slider, a buffer spring (602) is symmetrically connected in the inner cavity of the buffer slider (601), an oblique guide rod (603) is connected to the end surface of the buffer slider (601), and the oblique guide rod (603) is connected to the bottom of the movable template (4) via a connecting seat; The limit locking mechanism (7) comprises a fixed connection seat (701), the fixed connection seat (701) is connected to the side wall of the movable template (4), the bottom of the fixed connection seat (701) is connected to a limit slider (702), the side wall of the limit slider (702) is symmetrically provided with fixed teeth (703), a limit connection plate (704) is arranged below the fixed connection seat (701), the limit connection plate (704) is connected to the side wall of the fixed template (1), a positioning groove (705) is arranged on the limit connection plate (704) and corresponds to the limit slider (702), a double-headed oil cylinder (706) is connected to the side wall of the limit connection plate (704) by bolts, and a driving end of the double-headed oil cylinder (706) is provided with a fixed block (707) through the connection plate and corresponds to the fixed teeth (703).

2. The injection mold for the lower interior trim panel assembly of a car back door according to claim 1, characterized in that: A sliding groove is provided on the rocker base (10) and corresponds to the rocker slider (11), wherein the rocker slider (11) is connected to the sliding groove in a sliding manner.

3. The injection mold for the lower interior trim panel assembly of a car back door according to claim 1, characterized in that: A sliding groove is provided on the fixed slide rail (503) and corresponds to the movable slide block (502), wherein the movable slide block (502) is connected to the sliding groove in a sliding manner.

4. The injection mold for the lower interior trim panel assembly of a car back door according to claim 1, characterized in that: A sliding groove is provided on the movable core block (505) and corresponds to the guide slider (504), wherein the guide slider (504) is connected to the sliding groove in a sliding manner.

5. The injection mold for the lower interior trim panel assembly of a car back door according to claim 1, characterized in that: The movable slider (502) is provided with an oblique guide surface, and a connecting hole is provided on the end surface of the buffer slider (601) corresponding to the oblique guide rod (603), wherein the oblique guide rod (603) and the connecting hole are matched in a clearance fit.

6. The injection mold for the lower interior trim panel assembly of a car back door according to claim 1, characterized in that: The limiting slider (702) and the positioning slot (705) are matched in a clearance fit, and engaging teeth are provided on the side wall of the fixed block (707) and correspond to the fixed teeth (703).

7. The injection mold for the lower interior trim panel assembly of a car back door according to claim 1, characterized in that: A limiting groove is provided on the side wall of the limiting connection plate (704) and corresponds to the fixed clamping block (707), wherein the fixed clamping block (707) and the limiting groove are connected in a sliding manner.

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