High-transparency injection mold for cabinet door of plastic storage box

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a high-transparency injection mold for a plastic storage box cabinet door. The injection mold comprises an upper injection mold and a lower injection mold, and an injection main plate is arranged above the upper injection mold. In the injection molding process, the injection molding upper mold and the injection molding lower mold are close to each other, so that the molding lower part of the storage box cabinet door is propped against and matched with the molding bulge of the storage box cabinet door to form a complete cavity, a molten material is injected into the cavity through the injection molding main plate, and the vertical strip structure of the storage box cabinet door is synchronously molded through the vertical strip molding insert; secondary finish machining treatment on the plastic part is not needed, the labor cost is reduced, after injection molding is completed, cooling water is introduced into the crossed type multi-pipeline cooling assembly, the formed plastic part is subjected to crossed type cooling through the crossed type multi-pipeline cooling assembly, multidirectional synchronous cooling on the middle portion and the side end portion of the plastic part is achieved, the cooling concentration degree is high, and the cooling efficiency is improved. And the cooling effect is good, the surface quality of the plastic part can be improved, and the plastic part is brighter.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a high-transparency injection mold for a plastic storage box cabinet door. Background Art

[0002] With the rapid development of my country's economy, the level of science and technology in my country is also constantly improving. Plastic injection molding uses injection molds, which are tools for producing plastic products; they are also tools that give plastic products complete structures and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. At present, plastic storage box cabinet doors are generally injection molded by injection molds. During the injection molding process, due to the large surface area of ​​the plastic part, it is difficult to centrally cool the thick wall of the side end of the plastic part during conventional cooling. The cooling concentration and effect are relatively general, resulting in a relatively general surface quality of the plastic part. Therefore, it is urgent to design a high-transparency injection mold for plastic storage box cabinet doors 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 utility model aims to solve the above problems and provides a high-transparency injection mold for a plastic storage box cabinet door.

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

[0006] A high-transparency injection mold for a plastic storage box cabinet door, comprising an injection upper mold and an injection lower mold, an injection mainboard is arranged above the injection upper mold, an upper ejection part passing through the injection upper mold is arranged between the injection mainboard and the injection upper mold, a storage box cabinet door molding protrusion is arranged at the bottom of the injection upper mold, a storage box cabinet door molding lower part is arranged on the injection lower mold, the storage box cabinet door molding lower part corresponds to the position of the storage box cabinet door molding protrusion and the shape is matched, a cross-type multi-channel cooling component is arranged in the injection upper mold, the cross-type multi-channel cooling component is staggered with the upper ejection part, and a vertical bar molding insert is also arranged at the bottom of the injection upper mold.

[0007] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, the cross-type multi-channel cooling assembly includes a middle cooling part and a side end cooling part arranged in the injection upper mold, and the middle cooling part and the side end cooling part are located in the same horizontal plane and are staggered with each other, and the middle cooling part and the side end cooling part are respectively staggered with the upper ejection part.

[0008] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, the middle cooling part includes a plurality of middle cooling straight-through pipes arranged in the injection upper mold, and the plurality of middle cooling straight-through pipes are parallel to each other and pass through the injection upper mold laterally.

[0009] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, the side end cooling part includes a plurality of side end cooling bends arranged in the injection upper mold, the side end cooling bends are L-shaped, and the side end cooling bends are staggered with the middle cooling straight-through pipes and are located on the same horizontal plane.

[0010] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, the vertical bar molding insert includes a plurality of molding panels arranged at the bottom of the injection upper mold, and a plurality of vertical bar molding grooves are provided on the outer side of the molding panels. The molding panels are slidably matched with the molding protrusions of the storage box cabinet door.

[0011] In the above-mentioned plastic storage box cabinet door high-transparency injection mold, the storage box cabinet door molding lower part includes a middle plane arranged on the injection lower mold and a storage box cabinet door molding cavity, and the storage box cabinet door molding cavity corresponds to the position of the storage box cabinet door molding protrusion and the shape is matched.

[0012] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, a lower part of a rotating shaft connector is provided in the molding cavity of the storage box cabinet door, and an upper part of a rotating shaft connector is provided in the molding protrusion of the storage box cabinet door. The lower part of the rotating shaft connector corresponds to the upper part of the rotating shaft connector in position and has a matching shape.

[0013] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, a mold clamping protrusion is provided in the lower injection mold, and a mold clamping cavity is provided in the upper injection mold, and the mold clamping protrusion is arranged opposite to the mold clamping cavity.

[0014] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, the storage box cabinet door molding cavity is located between the mold clamping protrusion and the middle plane.

[0015] In the above-mentioned high-transparency injection mold for the plastic storage box cabinet door, the upper ejection part includes an ejector rod fixing plate arranged below the injection molding main board, and a plurality of straight ejector rods are arranged at the bottom of the ejector rod fixing 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 injection molding upper mold and the injection molding lower mold close to each other, so that the lower part of the storage box cabinet door molding is abutted and matched with the storage box cabinet door molding protrusion to form a complete cavity, and the molten material is injected into the cavity through the injection molding main board, and the vertical bar molding insert is used to synchronously mold the vertical bar structure of the storage box cabinet door. There is no need to perform secondary finishing on the plastic parts, which shortens the labor cost. After the injection molding is completed, the cooling water is introduced into the cross-type multi-channel cooling component, and the cross-type multi-channel cooling component is used to cross-cool the molded plastic parts, and multi-directional synchronous cooling is achieved for the middle and side ends of the plastic parts. The cooling concentration is high and the cooling effect is good, which can improve the surface quality of the plastic parts and make the plastic parts more transparent.

[0018] 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

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a partial structural schematic diagram of the utility model.

[0021] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0022] Figure 4 It is a structural diagram of the injection mold.

[0023] In the figure: injection molding upper mold 1, injection molding lower mold 2, injection molding main board 3, upper ejector part 4, storage box cabinet door molding protrusion 5, storage box cabinet door molding lower part 6, cross-type multi-pipe cooling component 7, vertical bar molding insert 8, middle cooling part 9, side end cooling part 10, middle cooling straight-through pipe 11, side end cooling elbow 12, molding inlay 13, vertical bar molding groove 14, middle plane 15, storage box cabinet door molding cavity 16, shaft connector molding upper part 18, shaft connector molding lower part 17, mold clamping protrusion 19, mold clamping cavity 20, ejector rod fixing plate 21, straight ejector rod 22. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-4As shown, a high-transparency injection mold for a plastic storage box cabinet door comprises an injection upper mold 1 and an injection lower mold 2, an injection mainboard 3 is provided above the injection upper mold 1, an upper ejection portion 4 penetrating through the injection upper mold 1 is provided between the injection mainboard 3 and the injection upper mold 1, a storage box cabinet door molding protrusion 5 is provided at the bottom of the injection upper mold 1, a storage box cabinet door molding lower portion 6 is provided on the injection lower mold 2, the storage box cabinet door molding lower portion 6 corresponds to the position of the storage box cabinet door molding protrusion 5 and the shape is matched, a cross-type multi-channel cooling component 7 is provided in the injection upper mold 1, the cross-type multi-channel cooling component 7 is staggered with the upper ejection portion 4, and a vertical bar molding insert 8 is also provided at the bottom of the injection upper mold 1.

[0026] In this embodiment, during the injection molding process, the injection molding upper mold 1 and the injection molding lower mold 2 are brought close to each other, so that the storage box cabinet door molding lower part 6 and the storage box cabinet door molding protrusion 5 are abutted and matched to form a complete cavity, and the molten material is injected into the cavity through the injection molding main board 3, and the vertical bar molding insert 8 is used to synchronously mold the vertical bar structure of the storage box cabinet door. There is no need for secondary finishing of the plastic part, which shortens the labor cost. After the injection molding is completed, the cooling water is passed into the cross-type multi-channel cooling component 7, and the cross-type multi-channel cooling component 7 is used to cross-cool the molded plastic part, so that the middle and side ends of the plastic part are cooled synchronously in multiple directions, the cooling concentration is high, and the cooling effect is good, which can improve the surface quality of the plastic part and make the plastic part more transparent.

[0027] Combination Figure 1-4 As shown, the cross-type multi-channel cooling assembly 7 includes a middle cooling portion 9 and a side end cooling portion 10 arranged in the injection upper mold 1, the middle cooling portion 9 and the side end cooling portion 10 are located in the same horizontal plane and are staggered with each other, and the middle cooling portion 9 and the side end cooling portion 10 are respectively staggered with the upper ejection portion 4.

[0028] Specifically, after injection molding is completed, cooling water is passed into the middle cooling section 9 and the side end cooling section 10, and the molded plastic parts are cross-cooled by the middle cooling section 9 and the side end cooling section 10, so that the middle and side ends of the plastic parts are cooled synchronously in multiple directions, the cooling concentration is high, the cooling effect is good, the surface quality of the plastic parts can be improved, and the plastic parts can be made more transparent.

[0029] The middle cooling portion 9 includes a plurality of middle cooling straight-through pipes 11 disposed in the injection upper mold 1 . The plurality of middle cooling straight-through pipes 11 are parallel to each other and penetrate the injection upper mold 1 transversely.

[0030] In this embodiment, after the injection molding is completed, cooling water is introduced into the middle cooling straight-through pipe 11 to cool the middle part of the plastic part, and straight-through cooling is adopted, which has high cooling efficiency.

[0031] Combination Figure 3 , Figure 4 As shown, the side end cooling part 10 includes a plurality of side end cooling elbows 12 arranged in the injection upper mold 1, the side end cooling elbows 12 are L-shaped, and the side end cooling elbows 12 and the middle cooling straight-through pipes 11 are staggered and located on the same horizontal plane.

[0032] In this embodiment, after injection molding is completed, cooling water is passed into the side end cooling elbow 12 to cool the side end of the plastic part. The side end cooling elbow 12 is L-shaped, and side end centralized water cooling is adopted. The cooling is more concentrated and effective, thereby improving the surface quality of the side end of the plastic part.

[0033] The vertical bar molding insert 8 includes a plurality of molding panels 13 disposed at the bottom of the injection mold 1 , and a plurality of vertical bar molding grooves 14 are disposed on the outer side of the molding panels 13 . The molding panels 13 are slidably matched with the molding protrusions 5 of the storage box door.

[0034] In this embodiment, during the injection molding process, the vertical bar molding groove 14 in the molding panel 13 can simultaneously mold the vertical bar structure of the storage box cabinet door, eliminating the need for secondary finishing of the plastic part, thereby reducing labor costs.

[0035] Combination Figure 2 , Figure 4 As shown, the storage box cabinet door molding lower part 6 includes a middle plane 15 and a storage box cabinet door molding cavity 16 arranged on the injection lower mold 2. The storage box cabinet door molding cavity 16 corresponds to the position of the storage box cabinet door molding protrusion 5 and matches the shape.

[0036] In this embodiment, during the injection molding process, the storage box cabinet door molding cavity 16 cooperates with the storage box cabinet door molding protrusion 5 to form a complete cavity.

[0037] A lower shaft connector forming part 17 is disposed in the storage box cabinet door forming cavity 16, and an upper shaft connector forming part 18 is disposed in the storage box cabinet door forming protrusion 5. The lower shaft connector forming part 17 corresponds to the upper shaft connector forming part 18 in position and has a matching shape.

[0038] In this embodiment, during the injection molding process, the lower portion 17 of the rotating shaft connector is matched with the upper portion 18 of the rotating shaft connector to form a rotating shaft connector structure at a synchronous molding speed, thereby achieving the purpose of integral injection molding.

[0039] Combination Figure 1-4 As shown, a mold clamping protrusion 19 is provided in the lower injection mold 2, and a mold clamping cavity 20 is provided in the upper injection mold 1, and the mold clamping protrusion 19 and the mold clamping cavity 20 are arranged opposite to each other.

[0040] In this embodiment, during the mold closing process, the mold closing protrusion 19 cooperates with the mold closing cavity 20, and the mold closing accuracy is high.

[0041] Combination Figure 1-4 As shown, the storage box cabinet door molding cavity 16 is located between the mold protrusion 19 and the middle plane 15.

[0042] Combination Figure 1-2 As shown, the upper ejector portion 4 includes an ejector rod fixing plate 21 disposed below the injection molding main board 3 , and a plurality of straight ejector rods 22 are disposed at the bottom of the ejector rod fixing plate 21 .

[0043] In this embodiment, after the injection molding is completed, the mold is opened, the ejector rod fixing plate 21 is moved, and the molded plastic part is ejected by the straight ejector rod 22, and the ejection area is large.

[0044] The working principle of the utility model is:

[0045] During the injection molding process, the injection molding upper mold 1 and the injection molding lower mold 2 are brought close to each other, so that the storage box cabinet door molding cavity 16 and the storage box cabinet door molding protrusion 5 are abutted and matched to form a complete cavity, and the molten material is injected into the cavity through the injection molding main board 3. The vertical bar molding groove 14 in the molding panel 13 can synchronously form the vertical bar structure of the storage box cabinet door. There is no need to perform secondary finishing on the plastic part, which reduces the labor cost. After the injection molding is completed, the cooling water is passed into the middle cooling straight-through pipe 11 to cool the middle part of the plastic part. The straight-through cooling is adopted, and the cooling efficiency is high. The cooling water is passed into the side end cooling elbow 12 to cool the side end of the plastic part. The side end cooling elbow 12 is L-shaped. The side end centralized water cooling is adopted, and the cooling is more concentrated and effective, which improves the surface quality of the side end of the plastic part.

[0046] During the injection molding process, the lower part 17 of the rotating shaft connector is matched with the upper part 18 of the rotating shaft connector to form the rotating shaft connector structure at a synchronous molding speed, thereby achieving the purpose of integral injection molding.

[0047] During the mold closing process, the mold closing protrusion 19 cooperates with the mold closing cavity 20, and the mold closing accuracy is high.

[0048] After the injection molding is completed, the mold is opened, and the ejector rod fixing plate 21 is moved to eject the molded plastic part through the straight ejector rod 22, and the ejection area is large.

[0049] 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.

[0050] Although the terms such as injection upper mold 1, injection lower mold 2, injection main board 3, upper ejector 4, storage box cabinet door molding protrusion 5, storage box cabinet door molding lower part 6, cross-type multi-channel cooling assembly 7, vertical bar molding insert 8, middle cooling part 9, side end cooling part 10, middle cooling straight pipe 11, side end cooling elbow 12, molding panel 13, vertical bar molding groove 14, middle plane 15, storage box cabinet door molding cavity 16, shaft connector molding upper part 18, shaft connector molding lower part 17, mold protrusion 19, mold cavity 20, ejector rod fixing plate 21, straight ejector rod 22 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining 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-transparency injection mold for a plastic storage box cabinet door, comprising an injection upper mold (1) and an injection lower mold (2), characterized in that: An injection molding main board (3) is arranged above the injection molding upper mold (1); an upper ejection portion (4) penetrating through the injection molding upper mold (1) is arranged between the injection molding main board (3) and the injection molding upper mold (1); a storage box cabinet door molding protrusion (5) is arranged at the bottom of the injection molding upper mold (1); a storage box cabinet door molding lower portion (6) is arranged on the injection molding lower mold (2); the storage box cabinet door molding lower portion (6) corresponds to the position of the storage box cabinet door molding protrusion (5) and the shape is matched; a cross-type multi-channel cooling component (7) is arranged inside the injection molding upper mold (1); the cross-type multi-channel cooling component (7) and the upper ejection portion (4) are arranged in an alternating manner; and a vertical strip molding insert (8) is also arranged at the bottom of the injection molding upper mold (1).

2. The high-transparency injection mold for the plastic storage box door according to claim 1, characterized in that: The cross-type multi-channel cooling assembly (7) comprises a middle cooling portion (9) and a side end cooling portion (10) arranged in an injection upper mold (1); the middle cooling portion (9) and the side end cooling portion (10) are located on the same horizontal plane and staggered with each other; the middle cooling portion (9) and the side end cooling portion (10) are respectively staggered with the upper ejection portion (4).

3. The high-transparency injection mold for the plastic storage box cabinet door according to claim 2, characterized in that: The middle cooling portion (9) comprises a plurality of middle cooling straight-through pipes (11) arranged in the injection upper mold (1); the plurality of middle cooling straight-through pipes (11) are parallel to each other and penetrate the injection upper mold (1) transversely.

4. The high-transparency injection mold for the plastic storage box door according to claim 3, characterized in that: The side end cooling part (10) comprises a plurality of side end cooling bends (12) arranged in the injection upper mold (1), the side end cooling bends (12) are L-shaped, and the side end cooling bends (12) and the middle cooling straight-through pipes (11) are arranged alternately and are located on the same horizontal plane.

5. The high-transparency injection mold for the plastic storage box door according to claim 4, characterized in that: The vertical bar molding insert (8) comprises a plurality of molding panels (13) arranged at the bottom of the injection molding upper mold (1), a plurality of vertical bar molding grooves (14) are arranged on the outer side of the molding panels (13), and the molding panels (13) are slidably matched with the molding protrusions (5) of the storage box cabinet door.

6. The high-transparency injection mold for the plastic storage box door according to claim 5, characterized in that: The storage box cabinet door molding lower part (6) comprises a middle plane (15) arranged on the lower injection mold (2) and a storage box cabinet door molding cavity (16); the storage box cabinet door molding cavity (16) corresponds to the position of the storage box cabinet door molding protrusion (5) and has a matching shape.

7. The high-transparency injection mold for a plastic storage box door according to claim 6, characterized in that: The storage box cabinet door molding cavity (16) is provided with a rotating shaft connector molding lower portion (17), and the storage box cabinet door molding protrusion (5) is provided with a rotating shaft connector molding upper portion (18), and the rotating shaft connector molding lower portion (17) corresponds to the rotating shaft connector molding upper portion (18) in position and has a matching shape.

8. The high-transparency injection mold for a plastic storage box door according to claim 7, characterized in that: A mold clamping protrusion (19) is provided in the lower injection mold (2), and a mold clamping cavity (20) is provided in the upper injection mold (1), and the mold clamping protrusion (19) and the mold clamping cavity (20) are arranged opposite to each other.

9. The high-transparency injection mold for a plastic storage box door according to claim 8, characterized in that: The storage box cabinet door forming cavity (16) is located between the mold clamping protrusion (19) and the middle plane (15).

10. The high-transparency injection mold for a plastic storage box door according to claim 9, characterized in that: The upper ejector portion (4) comprises an ejector rod fixing plate (21) arranged below the injection molding main board (3), and a plurality of straight ejector rods (22) are provided at the bottom of the ejector rod fixing plate (21).

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