Multi-point synchronous glue feeding type hot runner of automobile wheel cover double-mold-cavity injection mold

Abstract

The utility model relates to the technical field of molds, in particular to a multi-point synchronous glue feeding type hot runner of an automobile wheel cover double-mold-cavity injection mold, which comprises a fixed mold plate and is characterized in that the bottom of an inner cavity of the fixed mold plate is connected with an ejector plate, and a movable mold plate is arranged on the end surface of the fixed mold plate; a plurality of ejector pins are arranged in an interlayer between the ejector pin plate and the fixed mold plate, buffer springs are arranged on the side walls of the ejector pins, and limiting locking mechanisms are connected to the opposite side walls of the fixed mold plate and the movable mold plate. According to the utility model, the sprue gate, the hot runner connecting plate and the glue injection ports are arranged in the multi-point synchronous glue feeding type hot runner of the automobile wheel cover double-mold-cavity injection mold, and the multiple groups of glue injection ports are formed in the bottom of the hot runner connecting plate and are distributed at the periphery of the injection molding part, so that during glue injection, molten plastic flows to the periphery of the injection molding part from the glue injection ports; therefore, the plastic spreading rate is accelerated, and the injection molding efficiency of injection-molded parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a multi-point synchronous glue-feeding hot runner of a double-cavity injection mold for an automobile wheel cover. Background Art

[0002] The current dual-cavity injection mold for automobile wheel cover has an injection port set at the top of the injection molded part. When injecting glue, it can only enter the mold cavity from the top of the mold, which affects the speed of plastic spreading in the mold and then affects the efficiency of injection molding. At the same time, when the mold is closed, there will be positioning deviation between the fixed platen and the movable platen. When the mold is put on, the fixed platen and the movable platen will be demolded. To address the above problems, it is necessary to provide a multi-point synchronous glue feeding hot runner for the dual-cavity injection mold for automobile wheel cover. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-point synchronous glue-feeding hot runner of a dual-cavity injection mold for an automobile wheel cover, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A multi-point synchronous glue-feeding hot runner for a dual-cavity injection mold for an automobile wheel cover, comprising a fixed platen, an ejector plate connected to the bottom of the fixed platen's inner cavity, a movable platen disposed on the end surface of the fixed platen, multiple sets of ejectors disposed in the interlayer between the ejector plate and the fixed platen, buffer springs disposed on the side walls of the ejectors, and limited locking mechanisms connected to the opposing side walls of the fixed and movable platens. A pouring gate is disposed on the end surface of the movable platen, a hot runner adapter plate disposed at the bottom of the pouring gate and within the inner cavity of the movable platen, and multiple sets of glue injection ports disposed at the bottom of the hot runner adapter plate and at the top and surrounding portions of the movable platen.

[0006] The limit locking mechanism includes a fixed connecting seat, which is connected to the side wall of the movable template, and 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, and a limit connecting plate is provided below the fixed connecting seat. The limit connecting plate is connected to the side wall of the fixed template, and a positioning slot is provided 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.

[0007] As a preferred solution of the present invention, the ejector pin and the buffer spring are fitted with a clearance fit, and a through-runner hole is provided in the inner cavity of the hot runner connection plate.

[0008] As a preferred solution of the present invention, a plurality of groups of injection ports are provided at the bottom of the hot runner connection plate, wherein the injection ports are distributed around the injection molded part.

[0009] As a preferred solution of the present invention, the cooperation mode between the limiting 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.

[0010] As a preferred solution of the present invention, a limiting groove is provided on the side wall of the limiting connecting plate and corresponds to the fixed block, wherein the fixed block and the limiting groove are connected in a sliding manner.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, a pouring gate, a hot runner connecting plate and a glue injection port are provided in a multi-point synchronous glue-feeding hot runner of a dual-cavity injection mold for an automobile wheel cover. The multiple glue injection ports at the bottom of the hot runner connecting plate are distributed around the injection molded part. When the glue is injected, the melted plastic flows from the glue injection port to the surroundings of the injection molded part, thereby accelerating the plastic spreading rate and improving the injection efficiency of the injection molded part.

[0013] In the utility model, a limit locking mechanism is provided in the injection mold of the lower interior trim panel assembly of the automobile tailgate, so that the limit slider, fixed tooth pattern, limit connecting plate, positioning card slot, double-head oil cylinder and fixed card block in the limit locking mechanism interact with each other, so that when the mold is closed, the fixed plate and the movable plate can be accurately positioned, and when the mold is upper molded, the fixed card block can be engaged with the fixed tooth pattern to complete the fixation between the fixed plate and the movable plate, thereby preventing demolding during the upper molded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the positive and equal side structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of part of the structure;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of part of the structure;

[0017] Figure 4 This is a schematic diagram of the distribution structure of the glue injection ports on the hot runner connecting plate of the utility model;

[0018] Figure 5 It is a structural diagram of the limit locking mechanism of the utility model.

[0019] Figure 6 For this utility model Figure 5Schematic diagram of the explosion structure.

[0020] In the figure: 1. Fixed plate; 2. Ejector plate; 3. Moving plate; 4. Ejector; 5. Buffer spring; 6. Limit locking mechanism; 7. Pouring gate; 8. Hot runner connecting plate; 9. Glue injection port; 601. Fixed connecting seat; 602. Limit slider; 603. Fixed tooth pattern; 604. Limit connecting plate; 605. Positioning slot; 606. Double-headed cylinder; 607. Fixed block. DETAILED DESCRIPTION

[0021] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] To facilitate 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.

[0023] 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 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.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] For example, please refer to Figure 1-6 , the utility model provides a technical solution:

[0026] A multi-point synchronous glue-feeding hot runner for a dual-cavity injection mold for an automobile wheel cover comprises a fixed plate 1, an ejector plate 2 connected to the bottom of the inner cavity of the fixed plate 1, a movable plate 3 provided on the end surface of the fixed plate 1, multiple sets of ejector pins 4 provided in the interlayer between the ejector plate 2 and the fixed plate 1, buffer springs 5 ​​provided on the side walls of the ejector pins 4, a limited locking mechanism 6 connected to the opposing side walls of the fixed plate 1 and the movable plate 4, a pouring gate 7 provided on the end surface of the movable plate 3, a hot runner connecting plate 8 provided at the bottom of the pouring gate 7 and in the inner cavity of the movable plate 3, and multiple sets of glue injection ports 9 provided at the bottom of the hot runner connecting plate 8 and at the top and surrounding portions of the movable plate 3;

[0027] In this embodiment, reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 When injecting plastic into the pouring gate 7, a pouring gate 7 is provided on the end face of the movable template 3, and a hot runner connecting plate 8 is provided at the bottom of the pouring gate 7 and located in the inner cavity of the movable template 3. A plurality of injection ports 9 are provided at the bottom of the hot runner connecting plate 8 and located at the top and around the movable template 3. A through flow hole is provided in the inner cavity of the hot runner connecting plate 8, and a plurality of injection ports 9 are provided at the bottom of the hot runner connecting plate 8. Under the condition that the injection ports 9 are distributed around the injection molded part, the melted plastic flows from the injection port 9 to the surrounding of the injection molded part, thereby accelerating the spreading rate of the plastic and improving the injection efficiency of the injection molded part.

[0028] Furthermore, the ejector pin 4 and the buffer spring 5 are fitted with a clearance fit, the inner cavity of the hot runner connecting plate 8 is provided with a through-flow channel hole, and the bottom of the hot runner connecting plate 8 is provided with multiple groups of injection ports 9, wherein the injection ports 9 are distributed around the injection molded part. Through the interaction between the various components in the device, the device can operate smoothly;

[0029] In this embodiment, reference Figure 1 、 Figure 2 、 Figure 5 and Figure 6The limit locking mechanism 7 includes a fixed connecting seat 601, which is connected to the side wall of the movable template 4. The bottom of the fixed connecting seat 601 is connected to the limit slider 602. The side wall of the limit slider 602 is symmetrically provided with fixed teeth 603. A limit connecting plate 604 is provided below the fixed connecting seat 601. The limit connecting plate 604 is connected to the side wall of the fixed template 1. A positioning slot 605 is provided on the limit connecting plate 604 and corresponds to the limit slider 602. A double-headed oil cylinder 606 is connected to the side wall of the limit connecting plate 604 by bolts. The driving end of the double-headed oil cylinder 606 is provided with a fixed block 607 through the connecting plate and corresponding to the fixed teeth 603, and the limit slider 602 cooperates with the positioning slot 605. 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 606 is started, so that the driving end of the double-headed oil cylinder 606 moves in the opposite direction, and a limiting groove is provided on the side wall of the limiting connecting plate 604 corresponding to the fixed block 607, wherein the connection mode of the fixed block 607 and the limiting groove is a sliding connection, which drives the fixed block 607 to move in the opposite direction. Under the condition that the matching mode of the limiting slider 602 and the positioning slot 605 is clearance fit and the side wall of the fixed block 607 is provided with a locking tooth pattern corresponding to the fixed tooth pattern 603, the fixed block 607 is engaged with the fixed tooth pattern 603, thereby completing the fixation between the fixed template 1 and the movable template 4;

[0030] Furthermore, the limiting slider 602 and the positioning slot 605 are matched in a clearance fit, and a snap-fit ​​tooth pattern is provided on the side wall of the fixed block 607 corresponding to the fixed tooth pattern 603, and a limiting groove is provided on the side wall of the limiting connecting plate 604 corresponding to the fixed block 607, wherein the connection between the fixed block 607 and the limiting groove is a sliding connection, which makes the device smoother during use.

[0031] The working process of the utility model is as follows: when using a multi-point synchronous glue-feeding hot runner of a dual-cavity injection mold for automobile wheel covers, when injecting plastic into the pouring gate 7, a pouring gate 7 is provided on the end face of the movable template 3, a hot runner connecting plate 8 is provided at the bottom of the pouring gate 7 and located in the inner cavity of the movable template 3, a bottom of the hot runner connecting plate 8 and located at the top and surrounding of the movable template 3, a plurality of glue injection ports 9 are provided, a through flow hole is opened in the inner cavity of the hot runner connecting plate 8, a plurality of glue injection ports 9 are provided at the bottom of the hot runner connecting plate 8, wherein the glue injection ports 9 are distributed around the injection molded part, so that the melted plastic flows from the glue injection port 9 to the surrounding of the injection molded part, thereby accelerating the plastic spreading rate and improving the injection efficiency of the injection molded part;

[0032] When the mold is closed, an ejector plate 2 is connected to the bottom of the inner cavity of the fixed mold plate 1, and a movable mold plate 3 is provided on the end surface of the fixed mold plate 1. Multiple groups of ejectors 4 are provided in the interlayer between the ejector plate 2 and the fixed mold plate 1. Buffer springs 5 ​​are provided on the side walls of the ejectors 4. The ejectors 4 and the buffer springs 5 ​​are fitted in a clearance fit, so that the ejector plate is squeezed by the injection molding machine to achieve the rise of the ejector, and the spring is used to achieve the reset;

[0033] When closing the mold, under the condition that the limiting slider 602 and the positioning slot 605 are clearance-fitted, the fixed template 1 and the movable template 4 can be accurately positioned. When the mold is upper, the double-headed oil cylinder 606 is started to make the driving end of the double-headed oil cylinder 606 move in the relative direction. A limiting groove is provided on the side wall of the limiting connecting plate 604 corresponding to the fixed block 607, wherein the fixed block 607 is connected to the limiting groove in a sliding connection to drive the fixed block 607 to move in the relative direction. Under the condition that the limiting slider 602 and the positioning slot 605 are clearance-fitted and the side wall of the fixed block 607 is provided with a snap-fit ​​tooth pattern corresponding to the fixed tooth pattern 603, the fixed block 607 is engaged with the fixed tooth pattern 603, thereby completing the fixation between the fixed template 1 and the movable template 4.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-point synchronous glue-feeding hot runner for a dual-cavity injection mold for an automobile wheel cover, comprising a fixed mold plate (1), characterized in that: The bottom of the inner cavity of the fixed mold plate (1) is connected to a pin plate (2), a movable mold plate (3) is provided on the end surface of the fixed mold plate (1), a plurality of groups of pins (4) are provided in the interlayer between the pin plate (2) and the fixed mold plate (1), a buffer spring (5) is provided on the side wall of the pins (4), and a limited locking mechanism (6) is connected to the opposite side walls of the fixed mold plate (1) and the movable mold plate (3), a pouring port (7) is provided on the end surface of the movable mold plate (3), a hot runner connecting plate (8) is provided at the bottom of the pouring port (7) and located in the inner cavity of the movable mold plate (3), and a plurality of groups of glue injection ports (9) are provided at the bottom of the hot runner connecting plate (8) and located at the top and around the movable mold plate (3); The limit locking mechanism (6) comprises a fixed connection seat (601), the fixed connection seat (601) is connected to the side wall of the movable template (3), the bottom of the fixed connection seat (601) is connected to a limit slider (602), the side wall of the limit slider (602) is symmetrically provided with fixed teeth (603), a limit connection plate (604) is provided below the fixed connection seat (601), the limit connection plate (604) is connected to the side wall of the fixed template (1), a positioning slot (605) is provided on the limit connection plate (604) and corresponds to the limit slider (602), a double-headed oil cylinder (606) is connected to the side wall of the limit connection plate (604) by bolts, and a driving end of the double-headed oil cylinder (606) is provided with a fixed block (607) through the connection plate and corresponds to the fixed teeth (603).

2. The multi-point synchronous glue-feeding hot runner of the dual-cavity injection mold for automobile wheel covers according to claim 1, characterized in that: The ejector pin (4) and the buffer spring (5) are fitted in a clearance fit, and a through-flow channel hole is provided in the inner cavity of the hot runner connecting plate (8).

3. The multi-point synchronous glue-feeding hot runner of the dual-cavity injection mold for automobile wheel covers according to claim 1, characterized in that: The bottom of the hot runner connecting plate (8) is provided with a plurality of groups of glue injection ports (9), wherein the glue injection ports (9) are distributed around the injection molded part.

4. The multi-point synchronous glue-feeding hot runner of the dual-cavity injection mold for automobile wheel covers according to claim 1, characterized in that: The limiting slider (602) and the positioning slot (605) are matched in a clearance fit, and engaging teeth are provided on the side wall of the fixed block (607) and corresponding to the fixed teeth (603).

5. The multi-point synchronous glue-feeding hot runner of the dual-cavity injection mold for automobile wheel covers according to claim 1 is characterized in that: A limiting groove is provided on the side wall of the limiting connecting plate (604) and corresponds to the fixed clamping block (607), wherein the fixed clamping block (607) and the limiting groove are connected in a sliding manner.

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