Large-size plastic table injection mold with anti-offset long core-pulling mechanism

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a large-size plastic table injection mold with an anti-offset long core-pulling mechanism. The long table board forming mold comprises a long table board forming lower mold and a long table board forming upper mold, and an injection molding main board is arranged above the long table board forming upper mold. In the injection molding process, the internal combined type molding insert and the molding upper cover part are used for molding the plastic part main body, the anti-offset long core-pulling mechanism adopts an inclined structure, and the external sliding type molding assembly is effectively fixed through the anti-offset long core-pulling mechanism in the injection molding process; the external sliding type forming assembly is prevented from sliding in the injection molding process, the sealing performance of a cavity is ensured, after injection molding is completed, the external sliding type forming assembly can slide upwards through the anti-deviation long core pulling mechanism, the space around a plastic part is completely opened, and then the formed plastic part is comprehensively ejected out through the ejection demolding part; the situation that the edge of the plastic part is stuck in the ejection process is avoided, and the ejection smoothness is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a large-size plastic table injection mold with an anti-deviating long core-pulling mechanism. Background Art

[0002] Molds are the various molds and tools used in industrial production to produce the desired product through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. Simply put, a mold is a tool used to create a molded object. This tool is composed of various parts, and different molds are composed of different parts. The object's shape is primarily achieved by changing the physical state of the molded material. In the production of plastic table panels, a modular structure is generally used to form the mold cavity. During the injection molding process, the side molding structure is prone to slipping due to the impact of the molten material, affecting the sealing of the mold cavity. Furthermore, during the ejection process, the ejection clearance around the part is small, and the edges of the part are prone to jamming during ejection, affecting the smoothness of the ejection.

[0003] In order to overcome the shortcomings of the existing technology, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses an injection mold for a plastic table top of a folding table [application number: 201811455402.5]. The injection mold of the plastic table top of the folding table includes an upper table top mold and a lower table top mold. A filling cavity is formed between the upper table top mold and the lower table top mold. The upper table top mold or the lower table top mold has only one injection port. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a large-size plastic table injection mold with an anti-deviating long core-pulling mechanism.

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

[0006] A large-size plastic table injection mold with an anti-deviation long core-pulling mechanism, comprising a long table board molding lower mold and a long table board molding upper mold, an injection molding mainboard is provided above the long table board molding upper mold, an internal combined molding insert and an external sliding molding component are provided on the long table board molding lower mold, an anti-deviation long core-pulling mechanism is provided in the injection molding mainboard that passes through the long table board molding upper mold and extends into the external sliding molding component, a molding upper cover is provided below the long table board molding upper mold, the anti-deviation long core-pulling mechanism and the molding upper cover are staggered, an injection molding tube is provided at the bottom of the injection molding mainboard that passes through the molding upper cover, an ejection demolding component is provided below the long table board molding lower mold, and the ejection demolding component corresponds to the position of the internal combined molding insert.

[0007] In the above-mentioned large-size plastic table injection mold with an anti-deviation long core-pulling mechanism, the anti-deviation long core-pulling mechanism includes a plurality of anti-deviation core-pulling inclined rods arranged in the injection main board, and the anti-deviation core-pulling inclined rods are arranged at an angle.

[0008] In the above-mentioned large-size plastic table injection mold with an anti-deviation long core-pulling mechanism, the external sliding molding component includes four external molding inclined slides arranged on the long table board molding lower mold, and the anti-deviation core-pulling inclined rod passes through the long table board molding upper mold and extends into the external molding inclined slides.

[0009] In the above-mentioned large-size plastic table injection mold with an anti-deviating long core-pulling mechanism, the internal combined molding insert is located in a cavity surrounded by four external molding inclined slides.

[0010] In the above-mentioned large-size plastic table injection mold with an anti-deviation long core-pulling mechanism, the long table board molding lower mold is provided with a plurality of T-shaped limit slides passing through the external molding inclined slide seat, and the center line of the T-shaped limit slide is parallel to the center line of the anti-deviation core-pulling inclined rod.

[0011] In the above-mentioned large-size plastic table injection mold with an anti-deviating long core-pulling mechanism, a table edge outer wall texture portion is provided on the inner side of the external molding inclined slide seat.

[0012] In the above-mentioned large-size plastic table injection mold with an anti-deviated long core-pulling mechanism, the internal combined molding insert includes a plurality of internal molding panels and inner frame molding strips arranged in a cavity formed by four external molding inclined slides, and the outer side surface of the inner frame molding strip is arranged opposite to the outer wall texture portion of the table edge of the external molding inclined slide.

[0013] In the above-mentioned large-size plastic table injection mold with an anti-deviating long core-pulling mechanism, a table corner molding insert is provided between the inner frame molding strip and the outer molding inclined slide seat.

[0014] In the above-mentioned large-size plastic table injection mold with an anti-deviating long core-pulling mechanism, the molding upper cover includes a molding upper cover plate arranged below the long table board molding upper mold, and the bottom of the molding upper cover plate is provided with a desktop texture portion.

[0015] In the above-mentioned large-size plastic table injection mold with an anti-deviated long core-pulling mechanism, the ejection demolding part includes an ejector rod fixing plate arranged below the long table board forming lower mold, and the ejector rod fixing plate is provided with a plurality of straight ejector rods.

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

[0017] 1. During the injection molding process, the utility model brings the long table board molding lower mold and the long table board molding upper mold close to each other, so that the internal combined molding insert, the external sliding molding component and the molding upper cover cooperate to form a complete cavity, and the molten material is injected into the cavity through the injection tube of the injection molding main board. The internal combined molding insert and the molding upper cover are used to form the main body of the plastic part. The anti-deviation long core-pulling mechanism adopts an inclined structure. During the injection molding process, the anti-deviation long core-pulling mechanism is used to effectively fix the external sliding molding component to avoid sliding of the external sliding molding component during the injection molding process, thereby ensuring the sealing of the cavity. After the injection molding is completed, the anti-deviation long core-pulling mechanism can slide the external sliding molding component upward to completely open the space around the plastic part, and then the molded plastic part is fully ejected through the ejection demolding part to avoid the edge of the plastic part from getting stuck during the ejection process, thereby ensuring the smoothness of the ejection.

[0018] 2. The utility model can further limit the movement angle of the external molding inclined slide seat through the T-shaped limiting slide bar, and realize double limiting in conjunction with the anti-deviating core pulling inclined rod.

[0019] Other advantages, objectives and features of the present invention will be reflected 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 diagram of the present utility model.

[0021] Figure 2 It is a partial structural diagram of the utility model.

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

[0023] Figure 4 It is a structural diagram of the formed upper cover.

[0024] In the figure: long table board molding lower mold 1, long table board molding upper mold 2, injection molding main board 3, internal combined molding insert 4, external sliding molding component 5, anti-deviation long core pulling mechanism 6, molding upper cover 7, injection molding tube 8, ejection demolding part 9, anti-deviation core pulling inclined rod 10, external molding inclined slide 11, T-shaped limit slide 12, table edge outer wall texture part 13, inner molding insert 14, inner frame molding strip 15, table corner molding insert 16, molding upper cover 17, table top texture part 18, ejector rod fixing plate 19, straight ejector 20. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4As shown, a large-size plastic table injection mold with an anti-deviation long core-pulling mechanism includes a long table board molding lower mold 1 and a long table board molding upper mold 2, an injection main board 3 is provided above the long table board molding upper mold 2, an internal combined molding insert 4 and an external sliding molding component 5 are provided on the long table board molding lower mold 1, an anti-deviation long core-pulling mechanism 6 is provided in the injection main board 3, which passes through the long table board molding upper mold 2 and extends into the external sliding molding component 5, a molding upper cover 7 is provided below the long table board molding upper mold 2, the anti-deviation long core-pulling mechanism 6 and the molding upper cover 7 are staggered, an injection tube 8 passing through the molding upper cover 7 is provided at the bottom of the injection main board 3, an ejection demolding member 9 is provided below the long table board molding lower mold 1, and the ejection demolding member 9 corresponds to the position of the internal combined molding insert 4.

[0027] In this embodiment, during the injection molding process, the long table board molding lower mold 1 and the long table board molding upper mold 2 are brought close to each other, so that the internal combined molding insert 4, the external sliding molding component 5 and the molding upper cover 7 cooperate to form a complete cavity, and the molten material is injected into the cavity through the injection tube 8 of the injection molding main board 3. The internal combined molding insert 4 and the molding upper cover 7 are used to mold the main body of the plastic part. The anti-deviation long core pulling mechanism 6 adopts an inclined structure. During the injection molding process, the external sliding molding component 5 is effectively fixed by the anti-deviation long core pulling mechanism 6 to avoid the external sliding molding component 5 from sliding during the injection molding process, thereby ensuring the sealing of the cavity. After the injection molding is completed, the external sliding molding component 5 can be slid upward by the anti-deviation long core pulling mechanism 6 to completely open the space around the plastic part, and then the molded plastic part is fully ejected by the ejection demolding part 9 to avoid the edge of the plastic part from getting stuck during the ejection process, thereby ensuring the smoothness of the ejection.

[0028] Combine Figure 1-4 As shown, the anti-deviating long core-pulling mechanism 6 includes a plurality of anti-deviating core-pulling inclined rods 10 arranged in the injection molding main board 3, and the anti-deviating core-pulling inclined rods 10 are arranged at an angle.

[0029] Specifically, during the injection molding process, the anti-deviation core-pulling inclined rod 10 effectively fixes the external sliding molding component 5 to prevent the external sliding molding component 5 from sliding during the injection molding process, thereby ensuring the sealing of the mold cavity. After the injection molding is completed, the external sliding molding component 5 can be slid upward through the anti-deviation core-pulling inclined rod 10 to completely open the space around the plastic part, which is convenient for subsequent demolding.

[0030] The external sliding molding assembly 5 includes four external molding inclined slides 11 arranged on the long table board molding lower mold 1, the anti-deviation core pulling inclined rod 10 passes through the long table board molding upper mold 2 and extends into the external molding inclined slides 11, and the internal combined molding insert 4 is located in the cavity formed by the four external molding inclined slides 11.

[0031] In this embodiment, the external molding inclined slide 11 is used to assist in molding the edge structure of the plastic part and simultaneously form a closed cavity.

[0032] The long table board forming lower mold 1 is provided with a plurality of T-shaped limiting slides 12 passing through the external forming inclined slide seat 11 , and the center line of the T-shaped limiting slide 12 is parallel to the center line of the anti-deviating core pulling inclined rod 10 .

[0033] In this embodiment, the T-shaped limiting slide bar 12 can further limit the movement angle of the external molding inclined slide seat 11, and cooperate with the anti-deviating core-pulling inclined rod 10 to achieve double limiting.

[0034] Combine Figure 3 As shown, the inner side of the externally formed inclined slide seat 11 is provided with a table edge outer wall texture portion 13.

[0035] In this embodiment, the textured portion 13 on the outer wall of the table edge is used to assist in forming the textured outer wall of the table edge of the plastic part, and no secondary finishing process is required.

[0036] The internal combined molding insert 4 includes a plurality of internal molding panels 14 and an inner frame molding strip 15 arranged in a cavity surrounded by four external molding inclined slides 11. The outer side surface of the inner frame molding strip 15 is arranged opposite to the outer wall texture portion 13 of the table edge of the external molding inclined slide 11.

[0037] In this embodiment, the inner molding panel 14 and the inner frame molding strip 15 are used to assist in molding the plastic part.

[0038] Combine Figure 1-3 As shown, a table corner forming insert 16 is provided between the inner frame forming strip 15 and the outer forming inclined slide seat 11 .

[0039] In this embodiment, the table corner forming insert 16 is used to assist in forming the table corner structure of the plastic part.

[0040] Combine Figure 1-4 As shown, the molded upper cover 7 includes a molded upper cover plate 17 arranged below the long table top molding upper mold 2, and a desktop texture portion 18 is provided at the bottom of the molded upper cover plate 17.

[0041] In this embodiment, the molded upper cover plate 17 is used to mold the upper surface of the plastic part, and the desktop texture portion 18 is used to mold the desktop texture structure on the upper surface of the plastic part, without the need for secondary finishing.

[0042] Combine Figure 1-3 As shown, the ejection demolding member 9 includes an ejector rod fixing plate 19 arranged below the long table board forming lower mold 1, and a plurality of straight ejector rods 20 are provided on the ejector rod fixing plate 19.

[0043] In this embodiment, after the injection molding is completed, the mold is opened, and the ejector rod fixing plate 19 is moved upward to drive the straight ejector rod 20 to fully eject the molded plastic part.

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

[0045] During the injection molding process, the long table board molding lower mold 1 and the long table board molding upper mold 2 are brought close to each other, so that the inner molding insert 14, the inner frame molding strip 15, the table corner molding insert 16, the outer molding inclined slide seat 11 and the molding upper cover plate 17 cooperate to form a complete mold cavity, and the molten material is injected into the mold cavity through the injection tube 8 of the injection molding main board 3. The anti-deviation core-pulling inclined rod 10 effectively fixes the external sliding molding component 5 to prevent the external sliding molding component 5 from sliding during the injection molding process, thereby ensuring the sealing of the mold cavity. After the injection molding is completed, the external sliding molding component 5 can be slid upward by the anti-deviation core-pulling inclined rod 10 to completely open the space around the plastic part to facilitate subsequent demoulding. The ejector rod fixing plate 19 is moved upward to drive the straight ejector rod 20 to fully eject the molded plastic part to avoid the edge of the plastic part from getting stuck during the ejection process, thereby ensuring the smoothness of the ejection.

[0046] The external molding inclined slide 11 is used to assist in molding the edge structure of the plastic part and form a closed cavity at the same time. The T-shaped limit slide 12 can further limit the movement angle of the external molding inclined slide 11, and cooperate with the anti-deviating core pulling inclined rod 10 to achieve double limit.

[0047] The outer wall texture portion 13 of the table edge is used to assist in forming the outer wall texture of the table edge of the plastic part, and no secondary finishing process is required. The inner molding panel 14 and the inner frame molding strip 15 are used to assist in forming the plastic part. The table corner molding insert 16 is used to assist in forming the table corner structure of the plastic part. The molding upper cover plate 17 is used to form the upper surface of the plastic part. The table top texture portion 18 is used to form the table top texture structure on the upper surface of the plastic part, and no secondary finishing process is required.

[0048] 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 with similar methods, without departing from the spirit of the present invention.

[0049] Although this article frequently uses the terms long table board forming lower mold 1, long table board forming upper mold 2, injection molding main board 3, internal combined molding insert 4, external sliding molding assembly 5, anti-deviating long core pulling mechanism 6, molding upper cover 7, injection molding tube 8, ejection demolding member 9, anti-deviating core pulling inclined rod 10, external molding inclined slide 11, T-shaped limiting slide 12, table edge outer wall texture portion 13, internal molding insert 14, inner frame molding strip 15, table corner molding insert 16, molding upper cover 17, table top texture portion 18, ejector rod fixing plate 19, straight ejector 20, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention. Interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A large-size plastic table injection mold with an anti-deviating long core-pulling mechanism, comprising a long table board molding lower mold (1) and a long table board molding upper mold (2), characterized in that: An injection molding main board (3) is provided above the long table board molding upper mold (2), an internal combined molding insert (4) and an external sliding molding component (5) are provided on the long table board molding lower mold (1), an anti-deviating long core pulling mechanism (6) is provided in the injection molding main board (3) which passes through the long table board molding upper mold (2) and extends into the external sliding molding component (5), a molding upper cover (7) is provided below the long table board molding upper mold (2), the anti-deviating long core pulling mechanism (6) and the molding upper cover (7) are arranged in an alternating manner, an injection molding tube (8) which passes through the molding upper cover (7) is provided at the bottom of the injection molding main board (3), an ejection demolding member (9) is provided below the long table board molding lower mold (1), and the ejection demolding member (9) corresponds to the position of the internal combined molding insert (4).

2. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 1 is characterized in that: The anti-deviating long core-pulling mechanism (6) comprises a plurality of anti-deviating core-pulling inclined rods (10) arranged in the injection molding main board (3), and the anti-deviating core-pulling inclined rods (10) are arranged in an inclined manner.

3. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 2 is characterized in that: The external sliding forming assembly (5) includes four external forming inclined slide seats (11) arranged on the long table board forming lower mold (1), and the anti-deviating core pulling inclined rod (10) passes through the long table board forming upper mold (2) and extends into the external forming inclined slide seats (11).

4. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 3 is characterized in that: The internal combined molding insert (4) is located in a cavity surrounded by four external molding inclined slide seats (11).

5. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 4 is characterized in that: The long table board forming lower die (1) is provided with a plurality of T-shaped limiting slides (12) passing through the external forming inclined slide seat (11), and the center line of the T-shaped limiting slides (12) is parallel to the center line of the anti-deviating core pulling inclined rod (10).

6. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 5, characterized in that: The inner side of the externally formed inclined sliding seat (11) is provided with a table edge outer wall pattern portion (13).

7. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 6, characterized in that: The internal combined molding insert (4) comprises a plurality of internal molding panels (14) and an inner frame molding strip (15) arranged in a cavity surrounded by four external molding inclined slides (11); the outer side surface of the inner frame molding strip (15) is arranged opposite to the outer wall texture portion (13) of the table edge of the external molding inclined slide (11).

8. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 7, characterized in that: A table corner forming insert (16) is provided between the inner frame forming strip (15) and the outer forming inclined slide seat (11).

9. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 8, characterized in that: The molded upper cover (7) comprises a molded upper cover plate (17) arranged below the long table top mold (2), and a tabletop pattern portion (18) is provided at the bottom of the molded upper cover plate (17).

10. The large-size plastic table injection mold with an anti-deviating long core-pulling mechanism according to claim 9, characterized in that: The ejection demoulding member (9) comprises an ejector rod fixing plate (19) arranged below the long table plate forming lower die (1), and a plurality of straight ejector rods (20) are provided on the ejector rod fixing plate (19).

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