Multifunctional partitioned plastic storage box mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a multifunctional partitioned plastic storage box mold. The storage box forming mold comprises a storage box forming lower mold and a storage box forming upper mold, and an injection molding part is arranged above the storage box forming upper mold. In the injection molding process, the storage box base plate forming outer concave cavity is attached to the storage box base plate forming outer protrusion, the storage box base plate forming inner protrusion is attached to the storage box base plate forming inner concave cavity, and a molten material is injected into the cavity through the injection molding part; a buckle groove structure of a storage box base plate can be synchronously formed through the buckle groove synchronous forming piece, a roller groove structure of the storage box base plate is synchronously formed through the base plate roller groove synchronous forming assembly, roller grooves are used for subsequently assembling rollers at the bottom of a storage box, and carrying during use is facilitated; and secondary processing treatment on the buckle groove and the roller groove after injection molding is not needed, so that the molding quality of a plastic part is greatly improved, and the yield is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a multifunctional partitioned plastic storage box mold. Background Art

[0002] Storage boxes are daily storage tools and are frequently used in homes and offices. Assembled storage boxes are increasingly appearing in daily life and production because they can greatly reduce express delivery costs. Existing large-volume storage boxes are difficult to carry after placing clothes and items due to their heavy weight, so some storage boxes are equipped with rollers at the bottom for subsequent movement. When the existing plastic storage box injection mold is used to injection mold the plastic storage box base plate, the storage box base plate needs to be subjected to secondary finishing treatment of the roller groove and buckle groove after injection molding. Since the plastic material is relatively brittle and thin, the secondary processing is likely to damage the plastic part, resulting in relatively average molding quality and yield rate. Therefore, it is urgent to design a multifunctional partitioned plastic storage box mold that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a seamless injection mold for a household plastic storage box [application number: 202222790792.X], which includes a movable mold and a fixed mold, a mold opening component is arranged between the fixed mold and the movable mold, a joint mark is opened in the middle of the movable mold, and a scraping component is arranged on the middle outer surface of the upper end of the movable mold. The mold opening component includes a groove, a first connecting block, an empty groove, a second connecting block, a movable block, a cooling channel, a first air push flow channel, a second air push flow channel and a push rod, and two groups of second air push flow channels are opened on the inner surface of the movable mold. Utility Model Content

[0004] The purpose of the utility model is to provide a multifunctional partitioned plastic storage box mold in view of the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multifunctional partitioned plastic storage box mold, comprising a storage box molding lower mold and a storage box molding upper mold, an injection molded part is arranged above the storage box molding upper mold, an outer protrusion for molding a storage box base plate and an inner protrusion for molding a storage box base plate are arranged in the storage box molding lower mold, an outer concave cavity for molding a storage box base plate and an inner concave cavity for molding a storage box base plate are arranged in the storage box molding upper mold, the outer protrusion for molding a storage box base plate corresponds to the position of the outer concave cavity for molding a storage box base plate and the shape is matched, a snap groove synchronous molding part is arranged between the outer protrusion for molding a storage box base plate and the outer concave cavity for molding a storage box base plate, and a base plate roller groove synchronous molding component is arranged between the inner protrusion for molding a storage box base plate and the inner concave cavity for molding a storage box base plate.

[0007] In the above-mentioned multifunctional partitioned plastic storage box mold, the base plate roller groove synchronous molding component includes a plurality of base plate roller groove molding cavities arranged in the inner protrusion of the storage box base plate molding, and a plurality of base plate roller groove molding protrusions are arranged in the inner concave cavity of the storage box base plate molding, and the base plate roller groove molding cavities correspond one-to-one to the base plate roller groove molding protrusions.

[0008] In the above-mentioned multifunctional partitioned plastic storage box mold, shaft molding grooves are provided on both sides of the base plate roller groove molding cavity, and shaft molding protrusions are provided at both ends of the base plate roller groove molding protrusion that are integrally formed with the base plate roller groove molding protrusion.

[0009] In the above-mentioned multifunctional partitioned plastic storage box mold, a plurality of inner ejection demoulding holes are provided in the inner protrusion of the storage box base plate molding, and the inner ejection demoulding holes pass through the storage box molding lower mold.

[0010] In the above-mentioned multifunctional partitioned plastic storage box mold, the snap groove synchronous molding part includes a plurality of snap groove molding grooves arranged in the outer protrusion molded by the storage box base plate, and a plurality of snap groove molding protrusions are arranged in the outer concave cavity molded by the storage box base plate, and the snap groove molding grooves correspond to the snap groove molding protrusions in position and have matching shapes.

[0011] In the above-mentioned multifunctional partitioned plastic storage box mold, a plurality of outer ejection and demolding hole molds are arranged inside the outer protrusion of the storage box base plate molding, and the outer ejection and demolding hole molds penetrate through the storage box molding lower mold.

[0012] In the above-mentioned multifunctional partitioned plastic storage box mold, a mold-matching cavity is provided in the lower mold for forming the storage box, and a mold-matching protrusion is provided in the upper mold for forming the storage box. The mold-matching cavity and the mold-matching protrusion correspond in position and have matching shapes.

[0013] In the above-mentioned multifunctional partitioned plastic storage box mold, an outer side of the storage box base plate molded outer protrusion is provided with an outer strip groove molding protrusion extending into the storage box base plate molded outer protrusion, and an outer strip groove molding groove is provided in the molded protrusion, and the outer strip groove molding protrusion is arranged opposite to the outer strip groove molding groove.

[0014] In the above-mentioned multifunctional partitioned plastic storage box mold, four large-area ejector rods are provided in the storage box molding lower mold, and the large-area ejector rods are slidably matched with the outer protrusions formed on the storage box base plate.

[0015] In the above-mentioned multifunctional partitioned plastic storage box mold, the injection molded part includes an injection molded main board arranged above the storage box molding upper mold, and an injection molded main hole is provided in the injection molded main board.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. During the injection molding process, the utility model brings the storage box molding lower mold and the storage box molding upper mold close to each other, so that the outer concave cavity of the storage box base plate molding fits with the outer convexity of the storage box base plate molding, and the inner convexity of the storage box base plate molding fits with the inner concave cavity of the storage box base plate molding. The molten material is injected into the cavity through the injection molding part, and the buckle groove structure of the storage box base plate can be synchronously molded by the buckle groove synchronous molding part. The roller groove structure of the storage box base plate can be synchronously molded by the base plate roller groove synchronous molding component. The roller groove is used for subsequent assembly of the storage box bottom roller, which is convenient for carrying during use. The integrated injection molding method is adopted, and there is no need to perform secondary processing on the buckle groove and the roller groove after injection molding, which greatly improves the molding quality of the plastic parts and improves the yield rate.

[0018] 2. After the injection molding is completed, the mold is opened. The inner bottom of the plastic part can be ejected and demolded by the straight ejector rod in cooperation with the inner ejection demolding hole groove. The outer bottom of the plastic part can be ejected and demolded by the straight ejector rod in cooperation with the outer ejection demolding hole mold. The bottom of the plastic part can be ejected in a large area by the large-area ejector rod body at the end, thereby realizing multi-directional large-area ejection and better ejection effect.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the upper mold for forming a storage box.

[0022] Figure 3 It is a structural schematic diagram of the upper mold for forming a storage box.

[0023] Figure 4 It is a schematic diagram of the structure of a large-area ejector rod body at the end.

[0024] In the figure: storage box molding lower mold 1, storage box molding upper mold 2, injection molded part 3, storage box base plate molding outer protrusion 4, storage box base plate molding inner protrusion 5, storage box base plate molding outer concave cavity 6, storage box base plate molding inner concave cavity 7, buckle groove synchronous molding part 8, base plate roller groove synchronous molding component 88, base plate roller groove molding concave cavity 9, base plate roller groove molding protrusion 10, shaft molding groove 11, shaft molding protrusion 12, inner side ejection demolding hole groove 13, buckle groove molding groove 14, buckle groove molding protrusion 15, outer side ejection demolding hole mold 16, mold closing cavity 17, mold closing protrusion 18, outer side strip groove molding protrusion 19, outer side strip groove molding groove 20, end large area ejector rod body 21, injection molding main board 22, injection molding main hole 23. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, a multifunctional partitioned plastic storage box mold comprises a storage box molding lower mold 1 and a storage box molding upper mold 2, an injection molded part 3 is arranged above the storage box molding upper mold 2, a storage box base plate molding outer protrusion 4 and a storage box base plate molding inner protrusion 5 are arranged in the storage box molding lower mold 1, a storage box base plate molding outer concave cavity 6 and a storage box base plate molding inner concave cavity 7 are arranged in the storage box molding upper mold 2, the storage box base plate molding outer protrusion 4 and the storage box base plate molding outer concave cavity 6 correspond in position and are matched in shape, a snap groove synchronous molding part 8 is arranged between the storage box base plate molding outer protrusion 4 and the storage box base plate molding outer concave cavity 6, and a base plate roller groove synchronous molding component 88 is arranged between the storage box base plate molding inner protrusion 5 and the storage box base plate molding inner concave cavity 7.

[0027] In this embodiment, during the injection molding process, the storage box molding lower mold 1 and the storage box molding upper mold 2 are brought close to each other, so that the outer concave cavity 6 formed by the storage box base plate is fitted with the outer protrusion 4 formed by the storage box base plate, and the inner protrusion 5 formed by the storage box base plate is fitted with the inner concave cavity 7 formed by the storage box base plate. The molten material is injected into the cavity through the injection molding part 3, and the snap groove structure of the storage box base plate can be synchronously molded by the snap groove synchronous molding part 8. The roller groove structure of the storage box base plate can be synchronously molded by the base plate roller groove synchronous molding component 88. The roller groove is used for the subsequent assembly of the storage box bottom roller, which is convenient for carrying during use. The one-piece injection molding method is adopted, and there is no need to perform secondary processing on the snap groove and the roller groove after injection molding, which greatly improves the molding quality of the plastic parts and improves the yield rate.

[0028] Combination Figure 1-4As shown, the base plate roller groove synchronous forming component 88 includes a plurality of base plate roller groove forming cavities 9 arranged in the inner protrusion 5 of the base plate forming of the storage box, and a plurality of base plate roller groove forming protrusions 10 are arranged in the inner concave cavity 7 of the base plate forming of the storage box, and the base plate roller groove forming cavities 9 correspond one by one to the base plate roller groove forming protrusions 10.

[0029] Specifically, during the injection molding process, the roller groove structure of the base plate of the storage box can be formed synchronously through the cooperation between the base plate roller groove molding cavity 9 and the base plate roller groove molding protrusion 10. The roller groove is used for the subsequent assembly of the bottom roller of the storage box, which is convenient for carrying during use. By adopting an integrated injection molding method, there is no need for secondary processing of the roller groove after injection molding, which greatly improves the molding quality of the plastic parts and improves the yield rate.

[0030] The base plate roller groove forming cavity 9 is provided with a shaft forming groove 11 on both sides, and the base plate roller groove forming protrusion 10 is provided with a shaft forming protrusion 12 integrally formed with the base plate roller groove forming protrusion 10 at both ends.

[0031] In this embodiment, during the injection molding process, the shaft fixing grooves on both sides of the roller groove can be formed synchronously through the cooperation between the shaft molding groove 11 and the shaft molding protrusion 12, so as to facilitate the assembly of the roller shaft.

[0032] Combination Figure 2 , Figure 3 As shown, a plurality of inner ejection demoulding holes 13 are provided in the inner protrusion 5 of the storage box base plate molding, and the inner ejection demoulding holes 13 penetrate through the storage box molding lower mold 1.

[0033] In this embodiment, after the injection molding is completed, the mold is opened, and the inner bottom of the plastic part can be ejected and demolded by means of a straight ejector rod in cooperation with the inner ejection and demolding hole groove 13 .

[0034] The snap groove synchronous forming part 8 includes a plurality of snap groove forming grooves 14 arranged in the outer protrusion 4 formed on the base plate of the storage box, and a plurality of snap groove forming protrusions 15 are arranged in the outer concave cavity 6 formed on the base plate of the storage box, and the snap groove forming grooves 14 correspond to the snap groove forming protrusions 15 in position and have matching shapes.

[0035] In this embodiment, during the injection molding process, the snap groove structure of the plastic part can be simultaneously molded through the cooperation between the snap groove molding groove 14 and the snap groove molding protrusion 15. By adopting an integrated injection molding method, there is no need to perform secondary processing on the snap groove after injection molding, which greatly improves the molding quality of the plastic part and improves the yield rate.

[0036] Combination Figure 2As shown, a plurality of outer ejection and demolding hole dies 16 are arranged inside the outer protrusion 4 of the storage box base plate, and the outer ejection and demolding hole dies 16 penetrate through the storage box molding lower die 1.

[0037] In this embodiment, after the injection molding is completed, the mold is opened, and the outer bottom of the plastic part can be ejected and demolded by means of a straight ejector rod in cooperation with the outer ejection and demolding hole mold 16.

[0038] Combination Figure 1-2 As shown, a mold cavity 17 is provided in the storage box molding lower mold 1, and a mold protrusion 18 is provided in the storage box molding upper mold 2. The mold cavity 17 and the mold protrusion 18 correspond in position and have matching shapes.

[0039] In this embodiment, during the mold closing process, the mold closing cavity 17 fits with the mold closing protrusion 18 to ensure the accuracy of the mold closing.

[0040] Combination Figure 1-3 As shown, an outer side of the storage box base plate molded outer protrusion 4 is provided with an outer strip groove molding protrusion 19 extending into the storage box base plate molded outer protrusion 4, and an outer strip groove molding groove 20 is provided in the mold protrusion 18, and the outer strip groove molding protrusion 19 is arranged opposite to the outer strip groove molding groove 20.

[0041] In this embodiment, during the injection molding process, the outer strip groove forming protrusions 19 cooperate with the outer strip groove forming grooves 20 to synchronously form the outer strip grooves on both sides of the plastic part, which is convenient for lifting during subsequent use.

[0042] Combination Figure 1-4 As shown, four large-area ejection rods 21 are provided in the storage box forming lower mold 1, and the large-area ejection rods 21 are slidably matched with the outer protrusions 4 formed on the storage box base plate.

[0043] In this embodiment, after the injection molding is completed, the bottom of the plastic part can be ejected over a large area through the large-area ejection rod 21 at the end, and the ejection effect is better.

[0044] The injection molded part 3 includes an injection molded main board 22 disposed above the storage box molding upper mold 2 , and an injection molded main hole 23 is disposed in the injection molded main board 22 .

[0045] In this embodiment, during injection molding, the molten material is injected into the mold cavity through the injection main hole 23 in the injection main board 22 .

[0046] The working principle of the utility model is:

[0047] During the injection molding process, the storage box molding lower mold 1 and the storage box molding upper mold 2 are brought close to each other, so that the storage box base plate molding outer concave cavity 6 is fitted with the storage box base plate molding outer protrusion 4, and the storage box base plate molding inner protrusion 5 is fitted with the storage box base plate molding inner concave cavity 7, and the molten material is injected into the cavity through the injection molding main hole 23 in the injection molding main board 22. The roller groove structure of the storage box base plate can be synchronously formed through the cooperation between the base plate roller groove molding concave cavity 9 and the base plate roller groove molding protrusion 10, and the roller groove is used for the subsequent assembly of the storage box bottom roller, which is convenient for carrying during use. The one-piece injection molding method is adopted, and the roller groove does not need to be processed twice after injection molding, which greatly improves the molding quality of the plastic part and improves the yield rate. The shaft fixing grooves on both sides of the roller groove can be synchronously formed through the cooperation between the shaft molding groove 11 and the shaft molding protrusion 12, which is convenient for assembling the roller shaft.

[0048] The buckle groove structure of the plastic part can be formed synchronously by the cooperation between the buckle groove forming groove 14 and the buckle groove forming protrusion 15. The one-piece injection molding method is adopted, and the buckle groove does not need to be processed for secondary processing after injection molding, which greatly improves the molding quality of the plastic part and improves the yield rate. The outer strip groove forming protrusion 19 cooperates with the outer strip groove forming groove 20 to synchronously form the outer strip grooves on both sides of the plastic part, which is convenient for lifting during subsequent use.

[0049] After the injection molding is completed, the mold is opened. The inner bottom of the plastic part can be ejected and demolded by the straight ejector rod in cooperation with the inner ejection demolding hole groove 13, and the outer bottom of the plastic part can be ejected and demolded by the straight ejector rod in cooperation with the outer ejection demolding hole mold 16. The bottom of the plastic part can be ejected in a large area by the large-area ejector rod body 21 at the end, and the ejection effect is better.

[0050] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0051] Although this article uses the terms storage box molding lower mold 1, storage box molding upper mold 2, injection molded part 3, storage box base plate molding outer protrusion 4, storage box base plate molding inner protrusion 5, storage box base plate molding outer concave cavity 6, storage box base plate molding inner concave cavity 7, buckle groove synchronous molding part 8, base plate roller groove synchronous molding component 88, base plate roller groove molding concave cavity 9, base plate roller groove molding protrusion 10, shaft molding groove 11, shaft molding protrusion 12, inner side ejection demolding hole groove 13, buckle groove molding groove 14, buckle groove molding protrusion 15, outer side ejection demolding hole mold 16, mold closing cavity 17, mold closing protrusion 18, outer side strip groove molding protrusion 19, outer side strip groove molding groove 20, end large area ejector rod body 21, injection molding main board 22, injection molding main hole 23 and the like more frequently, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention. Any additional limitations construed by them are contrary to the spirit of the present invention.

Claims

1. A multifunctional partitioned plastic storage box mold, comprising a storage box molding lower mold (1) and a storage box molding upper mold (2), characterized in that: An injection molded part (3) is provided above the storage box molding upper mold (2); an outer protrusion (4) for molding a storage box base plate and an inner protrusion (5) for molding a storage box base plate are provided inside the storage box molding lower mold (1); an outer concave cavity (6) for molding a storage box base plate and an inner concave cavity (7) for molding a storage box base plate are provided inside the storage box molding upper mold (2); the outer protrusion (4) for molding a storage box base plate and the outer concave cavity (6) for molding a storage box base plate correspond in position and have matching shapes; a buckle groove synchronous molding part (8) is provided between the outer protrusion (4) for molding a storage box base plate and the outer concave cavity (6) for molding a storage box base plate; and a base plate roller groove synchronous molding component (88) is provided between the inner protrusion (5) for molding a storage box base plate and the inner concave cavity (7) for molding a storage box base plate.

2. The multifunctional partitioned plastic storage box mold according to claim 1 is characterized in that: The base plate roller groove synchronous forming component (88) includes a plurality of base plate roller groove forming concave cavities (9) arranged in the inner protrusion (5) of the base plate of the storage box, and a plurality of base plate roller groove forming protrusions (10) are arranged in the inner concave cavity (7) of the base plate of the storage box, and the base plate roller groove forming concave cavities (9) correspond to the base plate roller groove forming protrusions (10) one by one.

3. The multifunctional partitioned plastic storage box mold according to claim 2 is characterized in that: The base plate roller groove forming cavity (9) is provided with rotating shaft forming grooves (11) on both sides, and the base plate roller groove forming protrusion (10) is provided with rotating shaft forming protrusions (12) integrally formed with the base plate roller groove forming protrusion (10) at both ends.

4. The multifunctional partitioned plastic storage box mold according to claim 3 is characterized in that: A plurality of inner ejection demoulding holes (13) are arranged in the inner protrusion (5) of the storage box base plate, and the inner ejection demoulding holes (13) penetrate through the storage box molding lower mold (1).

5. The multifunctional partitioned plastic storage box mold according to claim 4 is characterized in that: The buckle groove synchronous forming part (8) comprises a plurality of buckle groove forming grooves (14) arranged in the outer protrusion (4) formed on the base plate of the storage box, and a plurality of buckle groove forming protrusions (15) are arranged in the outer concave cavity (6) formed on the base plate of the storage box, and the buckle groove forming grooves (14) correspond to the buckle groove forming protrusions (15) in position and have matching shapes.

6. The multifunctional partitioned plastic storage box mold according to claim 5, characterized in that: A plurality of outer ejection and demoulding hole molds (16) are arranged inside the outer protrusion (4) of the storage box base plate molding, and the outer ejection and demoulding hole molds (16) penetrate through the storage box molding lower mold (1).

7. The multifunctional partitioned plastic storage box mold according to claim 6, characterized in that: A mold-closing cavity (17) is provided in the storage box molding lower mold (1), and a mold-closing protrusion (18) is provided in the storage box molding upper mold (2). The mold-closing cavity (17) and the mold-closing protrusion (18) correspond in position and have matching shapes.

8. The multifunctional partitioned plastic storage box mold according to claim 7, characterized in that: An outer strip groove forming protrusion (19) extending into the inner part of the storage box base plate formed outer protrusion (4) is arranged on the outer side of the storage box base plate formed outer protrusion, and an outer strip groove forming groove (20) is arranged inside the mold protrusion (18), and the outer strip groove forming protrusion (19) and the outer strip groove forming groove (20) are arranged opposite to each other.

9. The multifunctional partitioned plastic storage box mold according to claim 8, characterized in that: Four large-area ejection rods (21) are provided in the storage box forming lower die (1), and the large-area ejection rods (21) are slidably matched with the outer protrusions (4) formed on the storage box base plate.

10. The multifunctional partitioned plastic storage box mold according to claim 9, characterized in that: The injection molded part (3) comprises an injection molded main board (22) arranged above the storage box molding upper mold (2), and an injection molded main hole (23) is provided in the injection molded main board (22).

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