Ultra-large logistics turnover box injection mold with embedded core-pulling mechanism

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an ultra-large logistics turnover box injection mold with an embedded core-pulling mechanism. The turnover box forming die comprises a turnover box forming upper die and a turnover box forming base, and an upper die forming face is arranged at the bottom of the turnover box forming upper die. In the injection molding process, the turnover box molding upper mold and the turnover box molding base are close to each other and are matched with the central mold closing auxiliary molding part and the side panels to form a complete cavity, and the central mold closing auxiliary molding part plays a role in auxiliary molding on one hand and plays a role in accurate mold closing on the other hand; molten materials are injected into the cavity through the injection molding part, the mold is opened after injection molding is completed, the side space and the end space of the plastic part are opened through the embedded core-pulling assembly, the formed plastic part can be conveniently taken out subsequently, an embedded connecting structure is adopted, on one hand, connection is firm, on the other hand, the space is saved, and the corresponding occupied area of the mold is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism. Background Art

[0002] Turnover boxes, also known as logistics boxes, are widely used in machinery, automobiles, home appliances, light industry, electronics and other industries. They are acid-resistant, alkali-resistant, oil-resistant, non-toxic and odorless. They can be used to hold food, etc. They are easy to clean, and parts turnover is convenient, neatly stacked, and easy to manage. Its reasonable design and excellent quality are suitable for transportation, distribution, storage, circulation processing and other links in factory logistics, and the turnover box is formed by injection mold processing. After the injection molding of the existing super-large logistics turnover box mold, if the ejection structure is used for ejection due to volume reasons, it will cause damage to the plastic parts. If the ejection structure is not used to directly remove the plastic parts, it will be troublesome and laborious. Therefore, it is urgent to design a super-large logistics turnover box injection mold with an embedded core pulling mechanism that can open the side and end space of the plastic parts after the injection molding is completed, so as to facilitate the subsequent removal of the molded plastic parts.

[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 turnover box [application number: 201621389688.8], which includes a mold frame, a fixed mold and a movable mold are provided on the mold frame, a core for forming the internal space of the turnover box is provided on the movable mold, a side drawer block distributed around the core is provided on the fixed mold, a mold cavity consistent with the structure of the turnover box is formed between the core, the side drawer block and the bottom wall of the fixed mold, a side drawer mechanism for side drawer block is connected to the side drawer block, a groove for injection molding the handle of the turnover box is provided on the side drawer block, a core drawer block whose one side is inserted into the groove to form the space for the handle of the turnover box is provided in the groove, a driving rod that can slide linearly is passed through the side drawer block, a T-shaped and obliquely extending clamping edge is provided on the driving rod, a slide groove cooperating with the clamping edge is provided on the core drawer block, a first driving member for driving the sliding of the driving rod is connected to the driving rod, and the driving rod drives the core drawer block to be pulled out and slide into the groove through the clamping edge. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism.

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

[0006] An injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism, comprising a turnover box molding upper mold and a turnover box molding base, the bottom of the turnover box molding upper mold is provided with an upper mold molding surface, the turnover box molding base is provided with a center mold clamping auxiliary molding part, the center mold clamping auxiliary molding part is embedded with the upper mold molding surface, four side panels that are enclosed in a rectangle are provided between the turnover box molding base and the turnover box molding upper mold, the lower surface of the side panel is abutted and matched with the upper surface of the turnover box molding base, an embedded core-pulling component is connected to the bottom of the side panel, the embedded core-pulling component is abutted with the side of the turnover box molding base, and an injection molded part is provided above the turnover box molding upper mold.

[0007] In the above-mentioned injection mold of the super-large logistics turnover box with an embedded core-pulling mechanism, the embedded core-pulling assembly includes a first side slide, a second side slide, a third side slide and a fourth side slide arranged under the side panel, an external fixed frame is provided on the outer side of the first side slide and the second side slide, and an embedded main core-pulling rod is provided on the external fixed frame, which extends into the first side slide and the second side slide, and the first side slide and the second side slide are respectively engaged with the embedded main core-pulling rod.

[0008] In the above-mentioned super-large logistics turnover box injection mold with an embedded core pulling mechanism, the external fixed frame is provided with a core pulling fixing slide that can move close to or away from one end of the turnover box molding base, and the embedded main core pulling rod is connected to the core pulling fixing slide.

[0009] In the above-mentioned super-large logistics turnover box injection mold with an embedded core pulling mechanism, two auxiliary embedded core pulling rods are provided on the core pulling fixed slide, the embedded main core pulling rod is located between the two auxiliary embedded core pulling rods, and the auxiliary embedded core pulling rods extend into the first side slide seat and the second side slide seat.

[0010] In the above-mentioned injection mold for the super-large logistics turnover box with an embedded core-pulling mechanism, the angle between the auxiliary embedded core-pulling rod and the embedded main core-pulling rod is an acute angle.

[0011] In the above-mentioned injection mold for the super-large logistics turnover box with an embedded core-pulling mechanism, a cylinder is provided on the external fixed frame, and a power shaft of the cylinder is connected to the core-pulling fixed slide.

[0012] In the above-mentioned injection mold for the super-large logistics turnover box with an embedded core-pulling mechanism, the side panel has a plurality of convex strip forming gaps, and the plurality of convex strip forming gaps are parallel to each other.

[0013] In the above-mentioned injection mold for the super-large logistics turnover box with an embedded core-pulling mechanism, the central mold auxiliary molding part includes a plurality of central mold inserts arranged on the turnover box molding base, and the central mold inserts are embedded with the upper mold molding surface.

[0014] In the above-mentioned injection mold of the super-large logistics turnover box with an embedded core-pulling mechanism, fixed transverse plates are provided on the outer sides of the first side slide seat, the second side slide seat, the third side slide seat and the fourth side slide seat.

[0015] In the above-mentioned injection mold for the super-large logistics turnover box with an embedded core-pulling mechanism, the injection molded part includes an injection main board arranged above the turnover box molding upper mold.

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

[0017] 1. In the injection molding process of the utility model, the upper mold for molding the turnover box and the molding base of the turnover box are brought close to each other, and a complete cavity is formed in cooperation with the central mold-closing auxiliary molding part and the side panel. The central mold-closing auxiliary molding part plays a role of auxiliary molding on the one hand, and achieves the purpose of precise mold closing on the other hand. The molten material is injected into the cavity through the injection molded part. After the injection molding is completed, the mold is opened, and the side and end spaces of the plastic part are opened through the embedded core pulling component to facilitate the subsequent removal of the molded plastic part. The embedded connection structure is adopted, which has a firm connection on the one hand, saves space on the other hand, and reduces the corresponding footprint of the mold.

[0018] 2. During injection molding, the utility model can fix the first side slide seat, the second side slide seat, the third side slide seat and the fourth side slide seat by fixing the horizontal plate to avoid up and down shaking and ensure accurate alignment.

[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 structural schematic diagram of the upper die for forming a turnover box.

[0024] In the figure: the turnover box molding upper mold 1, the turnover box molding base 2, the upper mold molding surface 3, the center mold auxiliary molding part 4, the side panel 5, the embedded core pulling component 6, the injection molded part 7, the first side slide seat 8, the second side slide seat 9, the third side slide seat 10, the fourth side slide seat 11, the external fixed frame 12, the embedded main core pulling rod 13, the core pulling fixed slide plate 14, the auxiliary embedded core pulling rod 15, the cylinder 16, the convex strip molding gap 17, the center mold insert 18, the fixed cross plate 19, and the injection molding main board 20. DETAILED DESCRIPTION

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

[0026] like Figure 1-4 As shown, an injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism includes a turnover box molding upper mold 1 and a turnover box molding base 2. The bottom of the turnover box molding upper mold 1 is provided with an upper mold molding surface 3, and the turnover box molding base 2 is provided with a center mold auxiliary molding part 4, and the center mold auxiliary molding part 4 is embedded with the upper mold molding surface 3. Four side panels 5 that are enclosed in a rectangle are provided between the turnover box molding base 2 and the turnover box molding upper mold 1. The lower surface of the side panel 5 is abutted and matched with the upper surface of the turnover box molding base 2. An embedded core-pulling component 6 is connected to the bottom of the side panel 5, and the embedded core-pulling component 6 is abutted with the side of the turnover box molding base 2. An injection molded part 7 is provided above the turnover box molding upper mold 1.

[0027] In this embodiment, during the injection molding process, the turnover box molding upper mold 1 and the turnover box molding base 2 are brought close to each other, and the central mold auxiliary molding part 4 and the side panel 5 are cooperated to form a complete cavity. The central mold auxiliary molding part 4 plays a role in auxiliary molding on the one hand, and on the other hand, it serves the purpose of precise mold closing. The molten material is injected into the cavity through the injection molded part 7. After the injection molding is completed, the mold is opened, and the side and end spaces of the plastic part are opened through the embedded core pulling assembly 6 to facilitate the subsequent removal of the molded plastic part. The embedded connection structure is adopted. On the one hand, the connection is firm, and on the other hand, space is saved and the corresponding footprint of the mold is reduced.

[0028] Combination Figure 1-4 As shown, the embedded core pulling assembly 6 includes a first side slide seat 8, a second side slide seat 9, a third side slide seat 10 and a fourth side slide seat 11 which are arranged below the side panel 5, an external fixed frame body 12 is provided on the outer side of the first side slide seat 8 and the second side slide seat 9, and an embedded main core pulling rod 13 is provided on the external fixed frame body 12, which extends into the first side slide seat 8 and the second side slide seat 9, and the first side slide seat 8 and the second side slide seat 9 are respectively engaged with the embedded main core pulling rod 13.

[0029] Specifically, the first side slide seat 8, the second side slide seat 9, the third side slide seat 10 and the fourth side slide seat 11 are used to fix the four side panels 5. When the injection molding is completed and the mold is opened, the first side slide seat 8 and the second side slide seat 9 are moved outward by the embedded main core pulling rod 13 to open the side and end space of the plastic part to facilitate the subsequent removal of the molded plastic part. The embedded connection structure is adopted, which has a firm connection on the one hand and saves space on the other hand, reducing the corresponding footprint of the mold.

[0030] The outer fixing frame 12 is provided with a core-pulling fixing slide plate 14 which can move along one end close to or away from the turnover box forming base 2 , and the embedded main core-pulling rod 13 is connected to the core-pulling fixing slide plate 14 .

[0031] In this embodiment, the core-pulling fixing slide plate 14 is used to connect and fix the embedded main core-pulling rod 13 to facilitate the movement of the embedded main core-pulling rod 13.

[0032] Combination Figure 2 , Figure 3 As shown, two auxiliary embedded core pulling rods 15 are provided on the core pulling fixing slide plate 14, and the embedded main core pulling rod 13 is located between the two auxiliary embedded core pulling rods 15. The auxiliary embedded core pulling rods 15 extend into the first side slide seat 8 and the second side slide seat 9.

[0033] In this embodiment, the auxiliary embedded core-pulling rod 15 is used to synchronously assist the embedded main core-pulling rod 13, and a multi-rod embedded structure is adopted to facilitate subsequent demoulding.

[0034] The included angle between the auxiliary embedded core-pulling rod 15 and the embedded main core-pulling rod 13 is an acute angle.

[0035] In this embodiment, the included angle between the auxiliary embedded core-pulling rod 15 and the embedded main core-pulling rod 13 is an acute angle, and the structure is reasonable.

[0036] Combination Figure 2 As shown, a cylinder 16 is disposed on the external fixing frame 12 , and a power shaft of the cylinder 16 is connected to the core-pulling fixing slide plate 14 .

[0037] In this embodiment, when the core-pulling fixed slide plate 14 needs to be moved, the cylinder 16 can be started, and the degree of automation is relatively high.

[0038] The side panel 5 has a plurality of convex strip forming gaps 17 therein, and the plurality of convex strip forming gaps 17 are parallel to each other.

[0039] In this embodiment, the convex strip forming gap 17 is used to assist in forming the convex strip structure of the plastic part.

[0040] Combination Figure 1-4As shown, the central mold auxiliary molding part 4 includes a plurality of central mold inserts 18 arranged on the turnover box molding base 2, and the central mold inserts 18 are embedded with the upper mold molding surface 3.

[0041] In this embodiment, the central mold insert 18 plays a role in assisting molding on the one hand, and serves the purpose of precise mold closing on the other hand.

[0042] Combination Figure 1-3 As shown, fixed transverse plates 19 are disposed on the outer sides of the first side sliding seat 8 , the second side sliding seat 9 , the third side sliding seat 10 and the fourth side sliding seat 11 .

[0043] In this embodiment, during injection molding, the first side slide 8, the second side slide 9, the third side slide 10 and the fourth side slide 11 can be fixed by fixing the horizontal plate 19 to avoid up and down shaking and ensure accurate alignment.

[0044] Combination Figure 1 As shown, the injection molded part 7 includes an injection molded main board 20 arranged above the turnover box molding upper mold 1.

[0045] In this embodiment, during injection molding, the molten material is injected into the mold cavity through the injection molding main board 20 .

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

[0047] During the injection molding process, the upper mold 1 and the base 2 of the turnover box molding are brought close to each other, and a complete cavity is formed with the central mold insert 18 and the side panel 5. The central mold insert 18 plays a role in auxiliary molding on the one hand, and on the other hand, it serves the purpose of precise mold closing. The molten material is injected into the cavity through the injection molding main board 20. The first side slide 8, the second side slide 9, the third side slide 10 and the fourth side slide 11 are used to fix the four side panels 5. When the injection molding is completed, the mold is opened, and the first side slide 8 and the second side slide 9 are moved outward by the embedded main core pulling rod 13 to open the side and end space of the plastic part, so as to facilitate the subsequent removal of the molded plastic part. The embedded connection structure is adopted, which has a firm connection on the one hand and saves space on the other hand, thereby reducing the corresponding footprint of the mold.

[0048] The core-pulling fixed slide plate 14 is used to connect and fix the embedded main core-pulling rod 13, which is convenient for moving the embedded main core-pulling rod 13. The auxiliary embedded core-pulling rod 15 is used to synchronously assist the embedded main core-pulling rod 13. The multi-rod embedded structure is adopted to facilitate subsequent demoulding.

[0049] The included angle between the auxiliary embedded core-pulling rod 15 and the embedded main core-pulling rod 13 is an acute angle, and the structure is reasonable. When the core-pulling fixed slide plate 14 needs to be moved, the cylinder 16 can be started, and the degree of automation is high. The convex strip forming gap 17 is used to assist in forming the convex strip structure of the plastic part.

[0050] During injection molding, the first side slide 8, the second side slide 9, the third side slide 10 and the fourth side slide 11 can be fixed by fixing the transverse plate 19 to avoid up and down shaking and ensure accurate alignment.

[0051] 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.

[0052] Although this article uses more terms such as turnover box molding upper mold 1, turnover box molding base 2, upper mold molding surface 3, center mold auxiliary molding part 4, side panel 5, embedded core pulling assembly 6, injection molded part 7, first side slide 8, second side slide 9, third side slide 10, fourth side slide 11, external fixed frame 12, embedded main core pulling rod 13, core pulling fixed slide 14, auxiliary embedded core pulling rod 15, cylinder 16, convex strip molding gap 17, center mold insert 18, fixed cross plate 19, injection molding main board 20, 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. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. An injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism, comprising a turnover box molding upper mold (1) and a turnover box molding base (2), characterized in that: The bottom of the upper mold (1) for forming the turnover box is provided with an upper mold forming surface (3), and the base (2) for forming the turnover box is provided with a central mold auxiliary molding part (4), and the central mold auxiliary molding part (4) is embedded with the upper mold forming surface (3). Four side panels (5) which are enclosed in a rectangle are provided between the base (2) and the upper mold (1) for forming the turnover box, and the lower surface of the side panel (5) is abutted with the upper surface of the base (2). An embedded core pulling component (6) is connected below the side panel (5), and the embedded core pulling component (6) is abutted with the side of the base (2). An injection molded part (7) is provided above the upper mold (1) for forming the turnover box.

2. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 1 is characterized in that: The embedded core pulling assembly (6) includes a first side slide seat (8), a second side slide seat (9), a third side slide seat (10) and a fourth side slide seat (11) which are arranged below the side panel (5); an external fixing frame (12) is provided on the outer side of the first side slide seat (8) and the second side slide seat (9); an embedded main core pulling rod (13) is provided on the external fixing frame (12) and extends into the first side slide seat (8) and the second side slide seat (9); the first side slide seat (8) and the second side slide seat (9) are respectively engaged with the embedded main core pulling rod (13).

3. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 2 is characterized in that: The outer fixing frame (12) is provided with a core-pulling fixing slide plate (14) which can move along one end close to or away from the turnover box forming base (2), and the embedded main core-pulling rod (13) is connected to the core-pulling fixing slide plate (14).

4. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 3 is characterized in that: Two auxiliary embedded core pulling rods (15) are arranged on the core pulling fixed slide plate (14), the embedded main core pulling rod (13) is located between the two auxiliary embedded core pulling rods (15), and the auxiliary embedded core pulling rod (15) extends into the first side slide seat (8) and the second side slide seat (9).

5. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 4, characterized in that: The included angle between the auxiliary embedded core-pulling rod (15) and the embedded main core-pulling rod (13) is an acute angle.

6. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 5, characterized in that: The external fixing frame (12) is provided with a cylinder (16), and the power shaft of the cylinder (16) is connected to the core-pulling fixing slide plate (14).

7. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 6, characterized in that: The side panel (5) has a plurality of convex strip forming gaps (17) therein, and the plurality of convex strip forming gaps (17) are parallel to each other.

8. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 7, characterized in that: The central mold-clamping auxiliary molding part (4) comprises a plurality of central mold-clamping inserts (18) arranged on a turnover box molding base (2), and the central mold-clamping inserts (18) are embedded with the upper mold molding surface (3).

9. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 8, characterized in that: A fixed transverse plate (19) is provided on the outer sides of the first side sliding seat (8), the second side sliding seat (9), the third side sliding seat (10) and the fourth side sliding seat (11).

10. The injection mold for a super-large logistics turnover box with an embedded core-pulling mechanism according to claim 9, characterized in that: The injection molded part (7) comprises an injection molded main board (20) arranged above the turnover box molding upper mold (1).

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