Plastic foam injection molding device for automobile seat

Abstract

The utility model belongs to the technical field of injection molding equipment, and particularly relates to an automobile seat plastic foam injection molding device which comprises a lower die holder and an upper die holder, a positioning seat is arranged in the lower die base and wraps the outer side of the die core, a fluid cavity is formed in the lower die base so that a cooling medium can be injected into the fluid cavity to achieve the cooling effect on a product, and cooling treatment of an inner layer and an outer layer is achieved through cooperation of the fluid cavity and a cooling chamber; a boss is arranged at the upper end of the positioning seat, a containing groove is formed in one side of the positioning seat, and a scraping plate which scrapes the outer wall of a mold core of the upper mold seat to scrape impurities on the surface of the mold core is arranged at the upper end of the containing groove so that the impurities can be temporarily stored in the containing groove to facilitate follow-up centralized treatment. According to the utility model, an inner-outer double-layer cooling effect can be formed, so that the cooling time of a product is shortened so as to improve the efficiency, the outer surface of the upper mold core can be automatically cleaned in the mold opening process, residual impurities can be removed at the first time so as to prevent agglomeration from forming dirt, and the subsequent cleaning operation is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding equipment, in particular to a plastic foam injection molding device for automobile seats. Background Art

[0002] Car seat plastic foam injection molding is a process involving multiple steps and processes, and is mainly used to produce foam pads in car seats. Since polyurethane foam has excellent elasticity, load-bearing and comfort, it is very suitable for car seats. Therefore, polyurethane materials are often used in the production of car seats for injection molding to form products.

[0003] At present, it is found in the actual injection molding operation that as the foaming reaction proceeds and gas is generated, the polymer material gradually expands in the mold and needs to be placed in a cooling room to wait for cooling and solidification. This step will undoubtedly take up a lot of time and cannot be adapted to large-scale and efficient production operations;

[0004] In order to solve the above problems, the present application proposes a car seat plastic foam injection molding device. Utility Model Content

[0005] The purpose of the utility model is to provide a car seat plastic foam injection molding device, which solves the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a plastic foam injection molding device for automobile seats, comprising: a lower mold base and an upper mold base; a positioning seat is arranged inside the lower mold base to cover the outer side of the mold core, and a fluid chamber is opened inside the lower mold base to inject a cooling medium to form a cooling effect on the product, and a double-layer cooling treatment is formed by cooperating with the cooling chamber; a boss is arranged at the upper end of the positioning seat, and a storage groove is opened inside one side thereof, and a scraper is arranged at the upper end of the storage groove to scrape the outer wall of the mold core of the upper mold base to scrape off the impurities on its surface, so as to temporarily store them inside the storage groove for subsequent centralized processing.

[0008] Furthermore, a limiting seat is provided at the upper end of the lower die seat to limit the boss inside, and a conduit is provided on one side of the lower end of the lower die seat to inject cooling medium into the interior of the fluid chamber.

[0009] Furthermore, a convex pipe is provided on one side of the lower end of the positioning seat to connect to the guide tube, and a pipeline is also provided on the upper end of the other side of the boss to discharge the heated cooling medium.

[0010] Furthermore, a guide platform is provided on the inner side of the upper end of the boss for docking with the upper die seat to prevent jamming.

[0011] Furthermore, tapered edges are provided on both the inner and outer sides of one end of the convex tube, and a rubber plug for abutting against the tapered edge to form a seal is provided at one end of the conduit.

[0012] Furthermore, a guiding slope is provided on one side inside the receiving groove to guide the falling impurities inward.

[0013] Furthermore, an elastic folding plate is provided on the inner side of the upper end of the receiving groove to drive the scraping plate to abut against the outer wall of the upper mold base outward.

[0014] The utility model has the following beneficial effects:

[0015] By installing the positioning seat, when the product is cooled and solidified, the cooling medium is poured into the conduit for auxiliary cooling, and it cooperates with the cooling chamber to form a double-layer cooling effect inside and outside, so as to reduce the time-consuming of the cooling process, adapt to high-volume and efficient production operations, and at the same time, the equipment can be quickly put into the next group of production operations, improving the utilization rate of the equipment;

[0016] When the upper mold base is moved out, the scraping plate of the utility model automatically scrapes the surface of its mold core, so that the residual impurities on the outer wall are removed and received inside the receiving groove in the first time, reducing the working difficulty during the subsequent mold cleaning to improve the efficiency and facilitating the cleaning operation.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall external structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of a partial internal structure at one end of the lower mold base and the upper mold base of the present utility model;

[0021] Figure 3 It is a schematic diagram of the connecting part structure of the lower mold base and the upper mold base of the present utility model;

[0022] Figure 4 It is a schematic diagram of a partial enlarged structure of part A of the present utility model;

[0023] Figure 5 It is a schematic diagram of the connecting part structure of the positioning seat and the lower mold base of the present utility model;

[0024] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0025] In the figure: 1, lower die holder; 2, upper die holder; 3, limit seat; 4, conduit; 5, positioning seat; 6, convex platform; 7, fluid chamber; 8, convex tube; 9, storage groove; 10, scraper; 11, guide table; 12, tapered edge; 13, rubber plug; 14, guiding slope; 15, elastic folding plate. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0028] Please refer to Figures 1-5 As shown, the present invention is an injection molding device for plastic foam of an automobile seat, including: a lower die holder 1 and an upper die holder 2; a positioning seat 5 is arranged inside the lower die holder 1 to cover the outside of the mold core, and a fluid chamber 7 is opened inside it to inject a cooling medium to form a cooling effect on the product. Through this cooperation with the cooling chamber, a double-layer cooling treatment inside and outside is formed;

[0029] A convex platform 6 is arranged at the upper end of the positioning seat 5, and a storage groove 9 is opened inside one side of it. At the upper end of the storage groove 9, there is a scraper 10 for scraping the outer wall of the mold core of the upper die holder 2 to scrape off the surface impurities, so as to be temporarily stored inside the storage groove 9 for subsequent centralized treatment;

[0030] This embodiment provides an injection mold for an automobile seat with short cooling time. By using the cooperation between the fluid chamber 7 inside the positioning seat 5 and the external cooling chamber, a double-layer cooling effect inside and outside can be formed. Through this, the cooling time of the product can be shortened to improve efficiency. Secondly, the outer surface of the upper mold core can be automatically cleaned during the mold opening process, and the residual impurities can be removed immediately to prevent caking and forming dirt, which is convenient for subsequent cleaning operations.

[0031] Among them, a limiting seat 3 is provided at the upper end of the lower die base 1 to limit the convex platform 6 therein. A conduit 4 is provided at one side of the lower end of the lower die base 1 for pouring a cooling medium into the interior of the fluid chamber 7 and also for discharging the cooling medium at the end of the cooling operation.

[0032] Among them, a convex pipe 8 is provided at one side of the lower end of the positioning seat 5 and is docked with the conduit 4. A pipeline is also provided at the upper end of the other side of the convex platform 6 for discharging the heated cooling medium, so that the cooling medium inside the fluid chamber 7 remains at a low temperature to maintain the cooling effect.

[0033] Among them, a guide platform 11 is provided inside the upper end of the convex platform 6 for docking with the upper die base 2 to prevent jamming.

[0034] Among them, tapered edges 12 are provided on both the inner and outer sides of one end of the convex pipe 8. A rubber plug 13 for abutting against the tapered edges 12 to form a seal is provided at one end of the conduit 4. With this arrangement, the use length 1 of the convex pipe 8 can be shortened, which is convenient for the installation and disassembly operation of the positioning seat 5.

[0035] Among them, a guide slope 14 is provided on one side inside the storage groove 9 to guide the falling impurities inward for storage inside the storage groove 9.

[0036] Among them, an elastic folding plate 15 that drives the scraping plate 10 to abut against the outer wall of the upper die base 2 is provided inside the upper end of the storage groove 9 to ensure the cleaning quality.

[0037] It can be understood that the utility model can form a double-layer cooling effect inside and outside, thereby shortening the cooling time of the product to improve efficiency. Secondly, it can also automatically clean the outer surface of the upper die core during the mold opening process, and remove the residual impurities immediately to prevent caking and forming dirt, which is convenient for subsequent cleaning operations.

[0038] A specific application of the operation process of this embodiment is as follows: When the injection molding of the car seat is completed and cooling is carried out, the cooling medium can be directly poured into the interior of the fluid chamber 7 by using the docking of the conduit 4 and the convex pipe 8, and cooperate with the cooling chamber to form a double-layer cooling effect inside and outside to improve the cooling efficiency. After this treatment, the cooling time can be greatly shortened, so that the mold can be quickly put into the next group of injection molding operations; at the same time, when the upper die base 2 is removed during mold opening, the elastic folding plate 15 drives the scraping plate 10 to abut against the outer wall of the upper die base 2 to form a scrape, so that the impurities on its surface automatically fall off and are stored inside the storage groove 9 under the guidance of the guide slope 14, so as to reduce the cleaning difficulty of the subsequent mold and improve the work efficiency.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An injection molding device for automotive seat plastic foam, characterized in that, Comprising: A lower die base (1) and an upper die base (2); A positioning seat (5) is provided inside the lower die base (1) to cover the outside of the die core, and a fluid chamber (7) is opened inside it to pour in a cooling medium to form a cooling effect on the product. Through this cooperation with the cooling chamber, a double-layer cooling treatment inside and outside is formed; A boss (6) is provided at the upper end of the positioning seat (5), and a receiving groove (9) is opened inside one side of it. A scraping plate (10) for scraping the impurities on the outer wall of the die core of the upper die base (2) is provided at the upper end of the receiving groove (9) to temporarily store them inside the receiving groove (9) for subsequent centralized treatment.

2. The plastic foam injection molding device for an automotive seat according to claim 1, wherein: A limiting seat (3) is provided at the upper end of the lower die base (1) to limit the boss (6) inside. A conduit (4) is provided at one side of the lower end of the lower die base (1) for pouring a cooling medium into the inside of the fluid chamber (7).

3. An injection molding device for automotive seat plastic foam, characterized in that: A convex tube (8) is provided at one side of the lower end of the positioning seat (5) to be docked with the conduit (4). A pipeline is also provided at the upper end of the other side of the boss (6) for discharging the heated cooling medium.

4. An injection molding device for automotive seat plastic foam according to claim 1, characterized in that: A guiding platform (11) is provided inside the upper end of the boss (6) for docking with the upper die base (2) to prevent jamming.

5. The injection molding device for automotive seat plastic foam according to claim 3, characterized in that: Conical edges (12) are provided on both the inner and outer sides of one end of the convex tube (8). A rubber plug (13) for pressing against the conical edges (12) to form a seal is provided at one end of the conduit (4).

6. The plastic foam injection molding device for an automotive seat according to claim 1, wherein: A guiding slope (14) is provided on one side inside the receiving groove (9) to guide the fallen impurities inward.

7. An injection molding device for automotive seat plastic foam, characterized in that: An elastic folding plate (15) for driving the scraping plate (10) to press against the outer wall of the upper die base (2) outward is provided on the inner side of the upper end of the receiving groove (9).

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