CN112318827A - Synchronous production and forming method of plastic parts - Google Patents

Synchronous production and forming method of plastic parts Download PDF

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Publication number
CN112318827A
CN112318827A CN202011171317.3A CN202011171317A CN112318827A CN 112318827 A CN112318827 A CN 112318827A CN 202011171317 A CN202011171317 A CN 202011171317A CN 112318827 A CN112318827 A CN 112318827A
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mold
molding
groove
forming
lower template
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黄耀毅
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Huizhou Shangji Plastic Hardware Products Co ltd
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Huizhou Shangji Plastic Hardware Products Co ltd
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Priority to CN202011171317.3A priority Critical patent/CN112318827A/en
Publication of CN112318827A publication Critical patent/CN112318827A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C2045/2683—Plurality of independent mould cavities in a single mould

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

本发明提供一种塑料件同步生产成型方法，包括成型模具，包括以下步骤：注塑：首先从进料漏斗倒入熔融状态的塑料，其中进入进料漏斗的塑料继续向下流动，然后再进入第一模具与第二模具之间以对第一模具与第二模具之间的间隙进行填充，从而形成厚度均匀的特定形状的注塑件；脱模：抬起顶板，然后通过连接柱，以依次抬升上模板与下模板，而下模板在脱模弹簧的作用下被弹起，使第一模具与下第二模具从下模板上退出。本发明可实现注塑出塑料底盖与反光罩的自动化同步生产，对于此类具有特殊的造型的注塑件，生产出的产品厚度均匀，壁薄的区域无瑕疵，注塑加工精度高，生产效率高，产品满足行业标准的要求，适合大规模自动化生产。

Figure 202011171317

The invention provides a molding method for the simultaneous production of plastic parts, which includes a molding die and includes the following steps: injection molding: first, pour plastic in a molten state from a feeding funnel, wherein the plastic entering the feeding funnel continues to flow downward, and then enters the first feeding funnel. Between a mold and a second mold, the gap between the first mold and the second mold is filled to form an injection molded part of a specific shape with a uniform thickness; demoulding: lift the top plate, and then pass the connecting column to lift up in turn The upper template and the lower template, and the lower template is bounced up under the action of the demoulding spring, so that the first mold and the lower second mold are withdrawn from the lower template. The invention can realize the automatic and synchronous production of the plastic bottom cover and the reflector by injection molding. For such injection molding parts with special shapes, the produced products have uniform thickness, no defects in the thin-walled area, high injection molding processing precision, and high production efficiency. , The products meet the requirements of industry standards and are suitable for large-scale automated production.

Figure 202011171317

Description

Synchronous production and forming method of plastic parts
Technical Field
The invention belongs to the technical field of injection molding processing devices, and particularly relates to a synchronous production and molding method of plastic parts.
Background
The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. The injection molding process can be roughly divided into the following 6 stages: closing the mold, injecting glue, maintaining the pressure, cooling, opening the mold and taking out the product. The above process is repeated, and the products can be produced in batch and periodically.
In the prior art, a plurality of injection molding products are available, but generally different products need to be provided with a set of molds. The plastic bottom cover and the reflecting cover are used as the most common plastic parts in the emergency lamp, and due to the small size, the separated injection molding production is not beneficial to improving the production efficiency. Because the plastic bottom cover and the reflecting cover have structures with smaller structures, the problems of uneven thickness, flaw generation and the like easily occur in the automatic processing process, and the improvement is needed.
Disclosure of Invention
In view of the above, the present invention provides a method for synchronously producing and forming plastic parts.
The technical scheme of the invention is as follows:
a synchronous production and molding method of plastic parts is characterized by comprising a molding die and comprising the following steps:
injection molding: firstly, pouring molten plastic from a feeding funnel, wherein the plastic entering the feeding funnel continuously flows downwards, and then enters a space between a first mold and a second mold to fill a gap between the first mold and the second mold, so that an injection molding part with uniform thickness and a specific shape is formed;
demolding: the top plate is lifted, then the upper template and the lower template are lifted in sequence through the connecting column, the lower template is bounced under the action of the demolding spring, the first mold and the lower second mold are made to exit from the lower template, the first mold and the second mold are separated to take out the injection molding piece, and demolding is completed.
Further, the forming die comprises a top plate, an upper die plate, a lower die plate and a bottom plate which are sequentially arranged, a first die cavity is arranged in the upper die plate, a first die is arranged in the first die cavity, a second die cavity is arranged in the lower die plate, a second die is arranged in the second die cavity, and the first die and the second die are correspondingly arranged;
the top plate is provided with a feeding hole, a feeding funnel is arranged in the feeding hole, the upper template is provided with a first feeding hole, the first mold is provided with a second feeding hole, the first feeding hole and the second feeding hole are correspondingly arranged, one end of the feeding funnel is connected with the feeding hole, and the other end of the feeding funnel is connected with the first feeding hole;
the first mould comprises a first forming area and a second forming area, and a first guide chute is arranged between the first forming area and the second forming area; the first forming area comprises a ladder platform part, first protruding blocks are arranged on the outer side of the ladder platform part, and first forming grooves are formed in two sides of the ladder platform part;
the second forming area comprises three symmetrically-arranged protruding strip portions, wherein convex columns are arranged on the surfaces of the two protruding strip portions;
the second die comprises a third forming area and a fourth forming area, and a second guide chute is arranged between the third forming area and the fourth forming area; the third forming area comprises a step-shaped groove, a second forming groove is formed in the outer edge of the step-shaped groove, matching grooves are distributed in the outer side of the step-shaped groove, and second protruding blocks are arranged on two sides of the step-shaped groove;
and a third forming groove is formed in the outer edge of the second forming area, a fourth forming groove is symmetrically formed in the third forming groove, and a circular protruding block and a fifth forming groove group are arranged in the second forming area.
Furthermore, the first guide chute and the second guide chute are correspondingly arranged, the step part and the step-shaped groove are correspondingly arranged, the first protruding block and the second forming groove are correspondingly arranged, and the first forming groove and the second protruding block are correspondingly arranged.
Furthermore, the protruding strip part is arranged corresponding to the fourth forming groove.
According to the invention, the plastic bottom cover and the reflecting cover can be accurately and synchronously injected through the arrangement of the specific structures of the first die and the second die, so that the requirement of the special molding quality of a product is met, and the production efficiency is effectively improved; the method meets the requirements of industrial standards and is suitable for large-scale automatic production.
Furthermore, locating grooves are symmetrically arranged at four corners of the first die, locating blocks are symmetrically arranged at four corners of the second die, and the locating grooves are connected with the locating blocks in a matched mode, so that the first die and the second die are matched in a locating mode, and the processing quality is guaranteed.
Further, the aperture of the feeding hole is reduced from top to bottom in sequence.
Furthermore, the supporting blocks are symmetrically arranged on two sides between the lower template and the bottom plate, the supporting columns are symmetrically arranged between the lower template and the bottom plate, and the demolding springs are arranged on the outer sides of the supporting columns, so that the feeding amount can be effectively controlled.
The connecting column is sequentially connected with the top plate, the upper template, the lower template, the supporting block and the bottom plate in a penetrating mode.
The injection molding process of the mold provided by the invention comprises the following steps: the plastic material in a molten state is poured from a feeding funnel, wherein the plastic material entering the feeding funnel continues to flow downwards and then enters a space between the first mold and the second mold to fill the gap between the first mold and the second mold, so that the injection molding part with uniform thickness and special shape is formed.
The demolding process comprises the following steps: the top plate is lifted, then the upper template and the lower template are lifted in sequence through the connecting column, the lower template is bounced under the action of the demolding spring, the first mold and the lower second mold are made to exit from the lower template, the first mold and the second mold are separated to take out the injection molding piece, and demolding is completed.
The invention can realize the automatic synchronous production of the injection molding plastic bottom cover and the reflector, and for the injection molding parts with special shapes, the produced products have uniform thickness, no flaw in the thin-wall area, high injection molding processing precision and high production efficiency, and the products meet the requirements of the industry standard and are suitable for large-scale automatic production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial schematic view of the present invention;
FIG. 3 is a partial schematic view of the present invention;
FIG. 4 is a partial schematic view of the present invention;
FIG. 5 is a partial schematic view of the present invention;
FIG. 6 is a partial schematic view of the present invention;
FIG. 7 is a schematic diagram of the present invention for producing a product;
FIG. 8 is another schematic diagram of the present invention for producing a product;
FIG. 9 is a schematic diagram of a structure of the present invention for producing another product;
FIG. 10 is another schematic diagram of another configuration of the present invention for producing another product.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Examples
A synchronous production molding method of plastic parts is characterized by comprising a molding die, wherein the molding die comprises a top plate 1, an upper template 2, a lower template 3 and a bottom plate 4 which are sequentially arranged, a first die cavity 21 is arranged in the upper template, a first die 5 is arranged in the first die cavity, a second die cavity 31 is arranged in the lower template, a second die 6 is arranged in the second die cavity, and the first die and the second die are correspondingly arranged;
the top plate is provided with a feeding hole 11, a feeding funnel 7 is arranged in the feeding hole, the upper template is provided with a first feeding hole 22, the first mold is provided with a second feeding hole 51, the first feeding hole and the second feeding hole are correspondingly arranged, one end of the feeding funnel is connected with the feeding hole, and the other end of the feeding funnel is connected with the first feeding hole;
the first mold 5 comprises a first molding area 52 and a second molding area 53, and a first material guide groove 54 is arranged between the first molding area and the second molding area; the first forming area comprises a step part 521, first protruding blocks 522 are arranged on the outer side of the step part, and first forming grooves 523 are arranged on two sides of the step part;
the second molding area comprises three symmetrically arranged protruding strip portions 531, wherein convex columns 532 are arranged on the surfaces of the two protruding strip portions;
the second die comprises a third forming area 61 and a fourth forming area 62, and a second guide chute 63 is arranged between the third forming area and the fourth forming area; the third forming area comprises a step-shaped groove 611, a second forming groove 612 is formed in the outer edge of the step-shaped groove, matching grooves 613 are arranged on the outer side of the step-shaped groove, and second protruding blocks 614 are arranged on two sides of the step-shaped groove;
the outer edge of the second molding area is provided with a third molding groove 621, the third molding groove is internally provided with a fourth molding groove 622 symmetrically arranged, and the second molding area is provided with a circular protrusion 623 and a fifth molding groove group 624.
Furthermore, the first guide chute and the second guide chute are correspondingly arranged, the step part and the step-shaped groove are correspondingly arranged, the first protruding block and the second forming groove are correspondingly arranged, and the first forming groove and the second protruding block are correspondingly arranged.
Furthermore, the protruding strip part is arranged corresponding to the fourth forming groove.
According to the invention, the plastic bottom cover and the reflecting cover can be accurately and synchronously injected through the arrangement of the specific structures of the first die and the second die, so that the requirement of the special molding quality of a product is met, and the production efficiency is effectively improved; the method meets the requirements of industrial standards and is suitable for large-scale automatic production.
Furthermore, locating grooves 55 are symmetrically arranged at four corners of the first die, locating blocks 64 are symmetrically arranged at four corners of the second die, and the locating grooves are connected with the locating blocks in a matched mode, so that the first die and the second die are matched in a locating mode, and the processing quality is guaranteed.
Further, the aperture of the feeding hole is reduced from top to bottom in sequence.
Further, the support blocks 41 are symmetrically arranged on two sides between the lower template and the bottom plate, the support columns 42 are symmetrically arranged between the lower template and the bottom plate, and the demolding springs 43 are arranged on the outer sides of the support columns, so that the feeding amount can be effectively controlled.
Furthermore, the die further comprises connecting columns 8 which are respectively and sequentially connected with the top plate, the upper die plate, the lower die plate, the supporting block and the bottom plate in a penetrating mode.
Further, the molding method comprises the following steps: injection molding: firstly, pouring molten plastic from a feeding funnel, wherein the plastic entering the feeding funnel continuously flows downwards, and then enters a space between a first mold and a second mold to fill a gap between the first mold and the second mold, so that an injection molding part with uniform thickness and a specific shape is formed;
demolding: the top plate is lifted, then the upper template and the lower template are lifted in sequence through the connecting column, the lower template is bounced under the action of the demolding spring, the first mold and the lower second mold are made to exit from the lower template, the first mold and the second mold are separated to take out the injection molding piece, and demolding is completed.
The invention can realize the automatic synchronous production of the injection molding plastic bottom cover and the reflector, and for the injection molding parts with special shapes, the produced products have uniform thickness, no flaw in the thin-wall area, high injection molding processing precision and high production efficiency, and the products meet the requirements of the industry standard and are suitable for large-scale automatic production.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art in the field.

Claims (9)

1.一种塑料件同步生产成型方法，其特征在于，包括成型模具，包括以下步骤：1. a plastic part synchronous production molding method, is characterized in that, comprises forming mould, comprises the following steps: 注塑：首先从进料漏斗倒入熔融状态的塑料，其中进入进料漏斗的塑料继续向下流动，然后再进入第一模具与第二模具之间以对第一模具与第二模具之间的间隙进行填充，从而形成厚度均匀的特定形状的注塑件；Injection molding: First pour the molten plastic from the feeding funnel, wherein the plastic entering the feeding funnel continues to flow downward, and then enters between the first mold and the second The gap is filled to form injection molded parts of a specific shape with uniform thickness; 脱模：抬起顶板，然后通过连接柱，以依次抬升上模板与下模板，而下模板在脱模弹簧的作用下被弹起，使第一模具与下第二模具从下模板上退出，再将第一模具与第二模具分离以取出注塑件，完成脱模。Demoulding: lift the top plate, and then pass the connecting column to lift the upper template and the lower template in turn, and the lower template is bounced under the action of the demoulding spring, so that the first mold and the lower second mold are withdrawn from the lower template. Then, the first mold is separated from the second mold to take out the injection molded part, and the demoulding is completed. 2.根据权利要求1所述的塑料件同步生产成型方法，其特征在于，所述成型模具包括依次设置的顶板、上模板、下模板、底板，所述上模板内设有第一模槽，所述第一模槽内设有第一模具，所述下模板内设有第二模槽，所述第二模槽内设有第二模具，所述第一模具与第二模具对应设置；2. The synchronous production molding method for plastic parts according to claim 1, wherein the molding die comprises a top plate, an upper template, a lower template, and a bottom plate arranged in sequence, and the upper template is provided with a first mold groove, The first mold groove is provided with a first mold, the lower template is provided with a second mold groove, the second mold groove is provided with a second mold, and the first mold and the second mold are correspondingly arranged; 所述顶板设有进料孔，所述进料孔内设有进料漏斗，所述上模板设有第一上料孔，所述第一模具设有第二上料孔，所述第一上料孔与第二上料孔对应设置，所述进料漏斗的一端与进料孔连接，所述进料漏斗的另一端与第一上料孔连接。The top plate is provided with a feeding hole, and the feeding hole is provided with a feeding funnel, the upper template is provided with a first feeding hole, the first mold is provided with a second feeding hole, and the first feeding hole is provided. The feeding hole is arranged corresponding to the second feeding hole, one end of the feeding funnel is connected with the feeding hole, and the other end of the feeding funnel is connected with the first feeding hole. 3.根据权利要求2所述的塑料件同步生产成型方法，其特征在于，所述第一模具包括第一成型区、第二成型区，所述第一成型区与第二成型区之间设有第一导料槽；所述第一成型区包括梯台部，所述梯台部外侧排布有第一突块，所述梯台部的两侧设有第一成型槽；3 . The method for simultaneous production and molding of plastic parts according to claim 2 , wherein the first mold comprises a first molding area and a second molding area, and a space between the first molding area and the second molding area is arranged. 4 . There is a first material guide groove; the first forming area includes a platform part, the outer side of the platform part is arranged with a first protrusion, and the two sides of the platform part are provided with a first forming groove; 所述第二成型区包括对称设置的突条部，所述突条部包括三个，其中两个突条部的表面设有凸柱。The second forming area includes symmetrically arranged protruding strip portions, the protruding strip portions include three, and the surfaces of the two protruding strip portions are provided with convex pillars. 4.根据权利要求3所述的塑料件同步生产成型方法，其特征在于，所述第二模具包括第三成型区、第四成型区，所述第三成型区与第四成型区之间设有第二导料槽；所述第三成型区包括梯台型槽，所述梯台型槽外沿设有第二成型槽，所述梯台型槽外侧排布有配合槽，所述梯台型槽两侧设有第二突块；4 . The method for simultaneous production and molding of plastic parts according to claim 3 , wherein the second mold comprises a third molding area and a fourth molding area, and a space between the third molding area and the fourth molding area is arranged. 5 . There is a second material guide groove; the third molding area includes a terrace-shaped groove, the outer edge of the terrace-shaped groove is provided with a second molding groove, the outer side of the terrace-shaped groove is arranged with a matching groove, and the ladder-shaped groove is arranged with a matching groove. There are second protrusions on both sides of the table groove; 所述第二成型区的外沿设有第三成型槽，所述第三成型槽内部对称设置的第四成型槽，第二成型区设有圆形突块、第五成型槽组。The outer edge of the second forming area is provided with a third forming groove, a fourth forming groove is symmetrically arranged inside the third forming groove, and the second forming area is provided with a circular protrusion and a fifth forming groove group. 5.根据权利要求4所述的塑料件同步生产成型方法，其特征在于，所述第一导料槽与第二导料槽对应设置，所述梯台部与梯台型槽对应设置，所述第一突块与第二成型槽对应设置，所述第一成型槽与第二突块对应设置；所述突条部与第四成型槽对应设置。5 . The method for synchronous production and molding of plastic parts according to claim 4 , wherein the first material guide groove and the second material guide groove are correspondingly arranged, and the terrace portion is arranged corresponding to the terrace-shaped groove, so the The first protruding block is arranged correspondingly to the second forming groove, the first forming groove is correspondingly disposed to the second protruding block, and the protruding strip portion is correspondingly arranged to the fourth forming groove. 6.根据权利要求2所述的塑料件同步生产成型方法，其特征在于，塑料件同步生产成型方法，其特征在于，所述第一模具的四角对称设有定位槽，所述第二模具的四角对称设有定位块，所述定位槽与定位块配合连接。6. The synchronous production molding method for plastic parts according to claim 2, characterized in that, the synchronous production molding method for plastic parts is characterized in that the four corners of the first mold are symmetrically provided with positioning grooves, and the second mold is provided with positioning grooves. Four corners are symmetrically provided with positioning blocks, and the positioning grooves are matched and connected with the positioning blocks. 7.根据权利要求2所述的塑料件同步生产成型方法，其特征在于，所述进料孔的孔径由上至下依次减小。7 . The method for simultaneous production and molding of plastic parts according to claim 2 , wherein the diameter of the feed holes decreases sequentially from top to bottom. 8 . 8.根据权利要求2所述的塑料件同步生产成型方法，其特征在于，所述下模板与底板之间两侧对称设有托块，所述下模板与底板之间对称设有支撑柱，所述支撑柱外侧设有脱模弹簧。8 . The method for synchronous production and molding of plastic parts according to claim 2 , wherein support blocks are symmetrically arranged on both sides between the lower template and the bottom plate, and support columns are symmetrically arranged between the lower template and the bottom plate. 9 . The outer side of the support column is provided with a mold release spring. 9.根据权利要求8所述的塑料件同步生产成型方法，其特征在于，还包括连接柱，所述连接柱分别依次贯穿连接所述顶板、上模板、下模板、托块、底板。9 . The method for synchronous production and molding of plastic parts according to claim 8 , further comprising connecting columns, the connecting columns respectively penetrate and connect the top plate, the upper template, the lower template, the support block and the bottom plate in sequence. 10 .
CN202011171317.3A 2020-10-28 2020-10-28 Synchronous production and forming method of plastic parts Pending CN112318827A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112318826A (en) * 2020-10-28 2021-02-05 惠州上记塑胶五金制品有限公司 A kind of injection molding method of plastic parts

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