High-strength storage box lossless demolding injection mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a lossless demolding injection mold for a high-strength storage box. The storage box forming mold comprises an upper storage box forming mold body and a lower storage box forming mold body, and a storage box forming protrusion is arranged in the lower storage box forming mold body. The storage box forming upper die and the storage box forming lower die are subjected to die assembly positioning through the side die assembly alignment piece, the situation that the upper die and the lower die deviate is avoided, the die assembly precision is high, the storage box forming protrusions and the storage box forming concave cavities are matched in an abutting mode to form a complete cavity, molten materials are injected into the cavity, and the storage box forming efficiency is improved. The mold is opened after injection molding is completed, and the side part, the end part and the side part of the molded plastic part can be synchronously ejected in multiple directions through the multi-directional lossless ejection demolding assembly, so that lossless demolding of the plastic part is realized, the bottom of the plastic part is prevented from being damaged, the surface quality of the plastic part is improved, and the integrity of the plastic part is kept in the demolding process; and the plastic part does not incline.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a high-strength storage box non-destructive demoulding injection mold. Background Art

[0002] Storage boxes are commonly used plastic products in daily life, which are generally composed of a bottom wall and multiple side walls. In the ejection and demoulding process of the current storage box injection mold, the ejection structure is generally against the bottom wall, and its side walls lack ejection and demoulding, and the ejection range is small, which is easy to cause damage to the plastic parts, resulting in average surface quality of the plastic parts, and easy tilting during ejection. Therefore, it is urgent to design a high-strength storage box non-destructive demoulding injection 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 an injection mold for a blind box storage box shell [application number: 202321488464.2], including: an upper template with a cavity inside; a lower template with a core inside; the upper template and the lower template can approach or move away from each other through a guide column, and a side molding block is slidably provided on the lower template, and a plurality of side molding blocks are provided; the cavity, the core and the side molding blocks are in contact and fit with each other to form a closed molding cavity; a driving mechanism is fixedly provided at the side end of the lower template, and the driving mechanism includes a connecting part and an input part, the connecting part is respectively connected to two adjacent side molding blocks, and the input part is dynamically connected to the connecting part. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a high-strength storage box non-destructive demoulding injection mold.

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

[0006] A high-strength storage box lossless demolding injection mold, comprising a storage box molding upper mold and a storage box molding lower mold, a storage box molding protrusion is provided in the storage box molding lower mold, a storage box molding cavity is provided at the bottom of the storage box molding upper mold, the storage box molding protrusion corresponds to the position of the storage box molding cavity and the shape is matched, a side mold alignment piece is provided between the storage box molding upper mold and the storage box molding lower mold, a multi-directional lossless ejection demolding component is provided below the storage box molding lower mold, the multi-directional lossless ejection demolding component extends into the storage box molding protrusion and slidably cooperates with the storage box molding protrusion.

[0007] In the above-mentioned high-strength storage box lossless demolding injection mold, the multi-directional lossless ejection demolding component includes a side ejector, an end ejector and a side demolding component arranged below the storage box molding lower mold, and the side ejector, the end ejector and the side demolding component are staggered and extend into the storage box molding protrusion respectively and slide with the storage box molding protrusion.

[0008] In the above-mentioned high-strength storage box non-destructive demolding injection mold, the side ejector includes a plurality of side ejector straight rods arranged below the storage box molding lower mold, the plurality of side ejector straight rods are parallel to each other, and the side ejector straight rods pass through the storage box molding lower mold.

[0009] In the above-mentioned high-strength storage box non-destructive demolding injection mold, the end ejector includes a plurality of end ejector straight rods arranged below the storage box molding lower mold, the plurality of end ejector straight rods are parallel to each other, and the end ejector straight rods pass through the storage box molding lower mold.

[0010] In the above-mentioned high-strength storage box non-destructive demolding injection mold, the side demolding member includes four side demolding rods arranged below the storage box molding lower mold, and the four side demolding rods are distributed in a rectangular array along the storage box molding lower mold.

[0011] In the above-mentioned high-strength storage box non-destructive demoulding injection mold, the side of the side demoulding rod body has a strip-shaped groove forming part, and the strip-shaped groove forming part is matched with the shape of the storage box forming protrusion.

[0012] In the above-mentioned high-strength storage box lossless demolding injection mold, a through-type water-cooling component is provided in the storage box molding lower mold, and the side ejection straight rods, end ejection straight rods and side demolding rods are respectively arranged alternately with the through-type water-cooling component.

[0013] In the above-mentioned high-strength storage box non-destructive demoulding injection mold, the through-type water-cooling component includes a plurality of water-cooling pipes arranged in the storage box molding lower mold, and the water-cooling pipes are arranged horizontally and penetrate through the storage box molding lower mold.

[0014] In the above-mentioned high-strength storage box lossless demolding injection mold, the side mold alignment parts include a lower mold insert and an upper mold insert arranged between the storage box molding upper mold and the storage box molding lower mold, and the lower mold insert and the upper mold insert are abutted and matched.

[0015] In the above-mentioned high-strength storage box non-destructive demoulding injection mold, an ejection connecting slide plate is provided below the storage box molding lower mold, and the side ejection straight rod and the end ejection straight rod are respectively slidably matched with the ejection connecting slide plate.

[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 upper mold and the storage box molding lower mold close to each other, and the storage box molding upper mold and the storage box molding lower mold are molded and positioned by the side mold alignment piece to avoid the upper and lower molds from offsetting. The mold clamping accuracy is high, so that the storage box molding protrusion and the storage box molding cavity are abutted and matched to form a complete cavity, and the molten material is injected into the cavity. After the injection molding is completed, the mold is opened, and the sides, ends and side sides of the molded plastic part can be ejected synchronously in multiple directions through the multi-directional lossless ejection demolding assembly, so as to achieve lossless demolding of the plastic part, avoid damage to the bottom of the plastic part, improve the surface quality of the plastic part, and maintain the integrity of the plastic part during the demolding process, and the plastic part will not tilt.

[0018] 2. In the injection molding process of the utility model, the strip groove forming part can simultaneously form the strip groove structure at the corner of the plastic part, without the need for secondary processing, thus shortening the process and reducing costs.

[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 partial structural schematic diagram of the utility model.

[0022] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0023] Figure 4 It is a schematic diagram of the structure of the side demoulding part.

[0024] Figure 5 It is a structural schematic diagram of the upper mold for forming a storage box.

[0025] In the figure: a storage box molding upper mold 1, a storage box molding lower mold 2, a storage box molding protrusion 3, a storage box molding cavity 4, a side mold alignment member 5, a multi-directional lossless ejection demolding component 6, a side ejection member 7, an end ejection member 8, a side demolding member 9, a side ejection straight rod 10, an end ejection straight rod 11, a side demolding rod body 12, a strip groove forming part 13, a through-type water-cooling member 14, a water-cooling pipe 15, a lower mold insert 16, an upper mold insert 17, and an ejection connecting slide plate 18. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-5As shown, a high-strength storage box lossless demolding injection mold comprises a storage box molding upper mold 1 and a storage box molding lower mold 2, wherein the storage box molding lower mold 2 is provided with a storage box molding protrusion 3, and the bottom of the storage box molding upper mold 1 is provided with a storage box molding cavity 4, the storage box molding protrusion 3 corresponds to the position of the storage box molding cavity 4 and the shape is matched, a side mold alignment member 5 is provided between the storage box molding upper mold 1 and the storage box molding lower mold 2, and a multi-directional lossless ejection demolding component 6 is provided below the storage box molding lower mold 2, and the multi-directional lossless ejection demolding component 6 extends into the storage box molding protrusion 3 and slidably cooperates with the storage box molding protrusion 3.

[0028] In this embodiment, during the injection molding process, the storage box molding upper mold 1 and the storage box molding lower mold 2 are brought close to each other, and the storage box molding upper mold 1 and the storage box molding lower mold 2 are molded and positioned through the side mold alignment member 5 to avoid the upper and lower molds from offsetting. The mold clamping accuracy is high, so that the storage box molding protrusion 3 and the storage box molding cavity 4 are abutted and matched to form a complete cavity, and the molten material is injected into the cavity. After the injection molding is completed, the mold is opened, and the sides, ends and edges of the molded plastic part can be ejected synchronously in multiple directions through the multi-directional lossless ejection demolding component 6, so as to achieve lossless demolding of the plastic part, avoid damage to the bottom of the plastic part, improve the surface quality of the plastic part, and maintain the integrity of the plastic part during the demolding process, and the plastic part will not tilt.

[0029] Combination Figure 1-5 As shown, the multi-directional lossless ejection demolding assembly 6 includes a side ejection piece 7, an end ejection piece 8 and a side demolding piece 9 which are arranged below the storage box molding lower mold 2. The side ejection piece 7, the end ejection piece 8 and the side demolding piece 9 are staggered and extend into the storage box molding protrusion 3 respectively and slidably cooperate with the storage box molding protrusion 3.

[0030] Specifically, after the injection molding is completed, the mold is opened, and the sides, ends and sides of the molded plastic part can be ejected synchronously in multiple directions through the side ejector 7, the end ejector 8 and the side demolding member 9, so as to achieve non-destructive demolding of the plastic part, avoid damage to the bottom of the plastic part, improve the surface quality of the plastic part, and maintain the integrity of the plastic part during the demolding process, and the plastic part will not tilt.

[0031] The side ejection member 7 includes a plurality of side ejection straight rods 10 disposed below the storage box forming lower mold 2 . The plurality of side ejection straight rods 10 are parallel to each other and penetrate through the storage box forming lower mold 2 .

[0032] In this embodiment, after the injection molding is completed, the mold is opened, and the side ejection straight rods 10 are moved to eject the side of the molded plastic part through the side ejection straight rods 10 .

[0033] Combination Figure 2 , Figure 3 As shown, the end ejector 8 includes a plurality of end ejector straight rods 11 disposed below the storage box forming lower mold 2 , the plurality of end ejector straight rods 11 are parallel to each other, and the end ejector straight rods 11 penetrate through the storage box forming lower mold 2 .

[0034] In this embodiment, after the injection molding is completed, the mold is opened, and the end ejection straight rod 11 is moved to eject the end of the molded plastic part through the end ejection straight rod 11.

[0035] The side demoulding member 9 includes four side demoulding rods 12 disposed below the storage box forming lower mold 2 , and the four side demoulding rods 12 are distributed in a rectangular array along the storage box forming lower mold 2 .

[0036] In this embodiment, after the injection molding is completed, the mold is opened and the four side demolding rods 12 are moved to eject the structures at the four corners of the molded plastic part through the four side demolding rods 12, which will not damage the structures at the corners of the plastic part, increase the ejection area, and reduce the ejection dead angle.

[0037] Combination Figure 4 As shown, the side of the side demoulding rod body 12 has a strip-shaped groove forming portion 13, and the strip-shaped groove forming portion 13 is matched with the shape of the storage box forming protrusion 3.

[0038] In this embodiment, during the injection molding process, the strip groove forming portion 13 can simultaneously form the strip groove structure at the corner of the plastic part without the need for secondary processing, thereby shortening the process and reducing the cost.

[0039] The storage box forming lower mold 2 has a through-type water-cooling component 14 in it, and the side ejector straight rods 10 , the end ejector straight rods 11 and the side demoulding rods 12 are respectively arranged alternately with the through-type water-cooling component 14 .

[0040] In this embodiment, after the injection molding is completed but before the mold is opened, cooling water is injected into the through-type water-cooling component 14 to cool the plastic part through the through-type water-cooling component 14, thereby reducing the molding time.

[0041] Combination Figure 1-3 As shown, the through-type water-cooling component 14 includes a plurality of water-cooling pipes 15 disposed in the storage box forming lower mold 2 . The water-cooling pipes 15 are transversely disposed and penetrate through the storage box forming lower mold 2 .

[0042] In this embodiment, after the injection molding is completed but before the mold is opened, cooling water is injected into the water cooling pipe 15 to cool the plastic part through the water cooling pipe 15 to reduce the molding time.

[0043] Combination Figure 1-2As shown, the side mold alignment member 5 includes a lower mold insert 16 and an upper mold insert 17 which are arranged between the storage box molding upper mold 1 and the storage box molding lower mold 2, and the lower mold insert 16 and the upper mold insert 17 are abutted and matched.

[0044] In this embodiment, during the mold closing process, the lower mold insert 16 and the upper mold insert 17 are in abutment with each other to avoid the upper and lower molds from being offset, and the mold closing accuracy is high.

[0045] Combination Figure 1-3 As shown, an ejection connecting slide plate 18 is provided below the storage box forming lower mold 2, and the side ejection straight rod 10 and the end ejection straight rod 11 are slidably matched with the ejection connecting slide plate 18 respectively.

[0046] In this embodiment, the ejection connecting slide plate 18 is used to connect and fix the side ejection straight rod 10 and the end ejection straight rod 11 to facilitate the movement of the side ejection straight rod 10 and the end ejection straight rod 11.

[0047] The working principle of the utility model is:

[0048] During the injection molding process, the storage box molding upper mold 1 and the storage box molding lower mold 2 are brought close to each other, and the storage box molding upper mold 1 and the storage box molding lower mold 2 are molded and positioned by abutting and matching the lower mold insert 16 and the upper mold insert 17 to avoid the upper and lower molds from offsetting. The mold clamping accuracy is high, so that the storage box molding protrusion 3 and the storage box molding cavity 4 are abutted and matched to form a complete cavity, and the molten material is injected into the cavity. After the injection molding is completed, the mold is opened, and the side, end and side of the molded plastic part can be ejected synchronously in multiple directions through the side ejector 7, the end ejector 8 and the side demolding member 9, so as to realize non-destructive demolding of the plastic part, avoid damage to the bottom of the plastic part, improve the surface quality of the plastic part, and maintain the integrity of the plastic part during the demolding process, and the plastic part will not tilt.

[0049] After the injection molding is completed, the mold is opened, the side ejection straight rod 10 is moved, and the side of the molded plastic part is ejected through the side ejection straight rod 10, the end ejection straight rod 11 is moved, and the end of the molded plastic part is ejected through the end ejection straight rod 11, and the four side demoulding rods 12 are moved, and the four corners of the molded plastic part are ejected and demoulded through the four side demoulding rods 12, which will not damage the structure at the corners of the plastic part, increase the ejection area, and reduce the ejection dead angle.

[0050] During the injection molding process, the strip groove forming part 13 can simultaneously form the strip groove structure at the corner of the plastic part, without the need for secondary processing, thus shortening the process and reducing the cost.

[0051] After the injection molding is completed and before the mold is opened, cooling water is injected into the water cooling pipe 15 to cool the plastic part through the water cooling pipe 15 to reduce the molding time.

[0052] The ejection connecting slide plate 18 is used to connect and fix the side ejection straight rod 10 and the end ejection straight rod 11, so as to facilitate the movement of the side ejection straight rod 10 and the end ejection straight rod 11.

[0053] 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.

[0054] Although this article uses more terms such as storage box forming upper mold 1, storage box forming lower mold 2, storage box forming protrusion 3, storage box forming cavity 4, side mold alignment member 5, multi-directional non-destructive ejection demolding assembly 6, side ejection member 7, end ejection member 8, side demolding member 9, side ejection straight rod 10, end ejection straight rod 11, side demolding rod body 12, strip groove forming part 13 through-type water cooling member 14, water cooling pipe 15, lower mold insert 16, upper mold insert 17, ejection connecting slide plate 18, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A high-strength storage box non-destructive demoulding injection mold, comprising a storage box molding upper mold (1) and a storage box molding lower mold (2), characterized in that: A storage box molding protrusion (3) is provided in the storage box molding lower mold (2), and a storage box molding cavity (4) is provided at the bottom of the storage box molding upper mold (1). The storage box molding protrusion (3) corresponds to the storage box molding cavity (4) in position and matches in shape. A side mold alignment member (5) is provided between the storage box molding upper mold (1) and the storage box molding lower mold (2). A multi-directional lossless ejection demolding component (6) is provided below the storage box molding lower mold (2). The multi-directional lossless ejection demolding component (6) extends into the storage box molding protrusion (3) and slidably cooperates with the storage box molding protrusion (3).

2. The high-strength storage box non-destructive demoulding injection mold according to claim 1 is characterized in that: The multi-directional lossless ejection demoulding component (6) comprises a side ejection member (7), an end ejection member (8) and a side demoulding member (9) arranged below the storage box molding lower mold (2); the side ejection member (7), the end ejection member (8) and the side demoulding member (9) are arranged alternately and extend into the storage box molding protrusion (3) respectively and are slidably matched with the storage box molding protrusion (3).

3. The high-strength storage box non-destructive demoulding injection mold according to claim 2, characterized in that: The side ejection member (7) comprises a plurality of side ejection straight rods (10) arranged below the storage box forming lower mold (2); the plurality of side ejection straight rods (10) are parallel to each other, and the side ejection straight rods (10) pass through the storage box forming lower mold (2).

4. The high-strength storage box non-destructive demoulding injection mold according to claim 3, characterized in that: The end ejector (8) comprises a plurality of end ejector straight rods (11) arranged below the storage box forming lower mold (2); the plurality of end ejector straight rods (11) are parallel to each other, and the end ejector straight rods (11) pass through the storage box forming lower mold (2).

5. The high-strength storage box non-destructive demoulding injection mold according to claim 4, characterized in that: The side demoulding member (9) comprises four side demoulding rods (12) arranged below the storage box forming lower mold (2), and the four side demoulding rods (12) are distributed in a rectangular array along the storage box forming lower mold (2).

6. The high-strength storage box non-destructive demoulding injection mold according to claim 5, characterized in that: The side of the side demoulding rod body (12) has a strip-shaped groove forming portion (13), and the strip-shaped groove forming portion (13) is matched with the shape of the storage box forming protrusion (3).

7. The high-strength storage box non-destructive demoulding injection mold according to claim 6, characterized in that: The storage box forming lower mold (2) has a through-type water-cooling component (14) in it, and the side ejection straight rod (10), the end ejection straight rod (11) and the side demoulding rod body (12) are respectively arranged alternately with the through-type water-cooling component (14).

8. The high-strength storage box non-destructive demoulding injection mold according to claim 7, characterized in that: The through-type water cooling component (14) comprises a plurality of water cooling pipes (15) arranged in the storage box forming lower mold (2); the water cooling pipes (15) are arranged transversely and penetrate through the storage box forming lower mold (2).

9. The high-strength storage box non-destructive demoulding injection mold according to claim 8, characterized in that: The side mold alignment member (5) comprises a lower mold insert (16) and an upper mold insert (17) which are arranged between the storage box forming upper mold (1) and the storage box forming lower mold (2), and the lower mold insert (16) and the upper mold insert (17) are abutted and matched with each other.

10. The high-strength storage box non-destructive demoulding injection mold according to claim 9, characterized in that: An ejection connection slide plate (18) is provided below the storage box forming lower mold (2), and the side ejection straight rod (10) and the end ejection straight rod (11) are respectively slidably matched with the ejection connection slide plate (18).

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