Die for manufacturing bottom plate of turnover box

Abstract

The utility model relates to the technical field of box body preparation, and discloses a mould for manufacturing a bottom plate of a turnover box, which comprises a first template and a second template, wherein the first template is provided with a first concave part, the bottom of the first concave part is provided with a circular-truncated-cone-shaped protruding piece, and a first groove is formed in the circumferential direction of a circular truncated cone; the second die plate is provided with a second concave part, a containing groove is formed in the bottom of the second concave part, the circular-truncated-cone-shaped protruding piece can be contained in the containing groove, and when the circular-truncated-cone-shaped protruding piece can be contained in the containing groove, a gap is formed between the circular-truncated-cone-shaped protruding piece and the inner wall of the containing groove. According to the mold for manufacturing the bottom plate of the turnover box, in the process that the first mold plate and the second mold plate extrude and form materials, the circular-truncated-cone-shaped protruding pieces and the containing grooves can be matched with each other to form a supporting structure on the lower surface of the bottom plate; the first grooves formed in the circumferential direction of the circular truncated cone are matched with the containing grooves, reinforcing ribs can be formed on the inner side edge of the supporting structure, and therefore the strength of the supporting structure can be improved.

Description

Technical Field

[0001] This utility model relates to the field of box manufacturing technology, and in particular to a mold for making the bottom plate of a turnover box. Background Technology

[0002] A collapsible box consists of a base plate, side panels, and a lid, with the lid and base plate located at the top and bottom ends of the side panels, respectively. To facilitate handling, a support structure is provided on the lower surface of the base plate to create a gap between the base plate and the ground. This allows forklift forks to reach under the base plate during transport, while the support structure also provides structural support. Currently, the base plate is typically manufactured using blow molding, resulting in insufficient strength in the support structure, making it prone to damage.

[0003] Therefore, there is an urgent need for a mold for making the bottom plate of turnover boxes to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a mold for making the bottom plate of turnover box, which can solve the problem that the supporting structure of the bottom plate is not strong enough and is often easily damaged.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A mold for making the bottom plate of a turnover box, including

[0007] The first template has a first recessed portion, and a frustum-shaped protrusion is provided at the bottom of the first recessed portion. The cross-sectional area of ​​the frustum-shaped protrusion gradually decreases from the first recessed portion to the direction away from the first recessed portion. The height of the frustum-shaped protrusion is greater than the depth of the first recessed portion. A first groove is provided in the circumferential direction of the frustum.

[0008] The second template has a second recessed portion, the shape of which matches the shape of the first recessed portion. The bottom of the second recessed portion has a receiving groove, and the frustum-shaped protrusion can be accommodated inside the receiving groove. When the frustum-shaped protrusion can be accommodated inside the receiving groove, there is a gap between the frustum-shaped protrusion and the inner wall of the receiving groove, and there is a gap between the frustum-shaped protrusion and the bottom of the second recessed portion.

[0009] As an alternative, the top of the frustum-shaped protrusion is provided with a second groove.

[0010] As an alternative, the bottom of the second recess is provided with a protruding post, and when the first template and the second template are engaged, there is a gap between the top of the protruding post and the bottom of the first recess.

[0011] As an optional solution, the first template is provided with a limiting block, and the second template is provided with a limiting groove, wherein the limiting block is adapted to the limiting groove.

[0012] As an optional solution, the first template is provided with a plurality of first support columns, which are spaced apart outside the first recess, and the second template is provided with a plurality of second support columns, which are spaced apart outside the second recess, and the plurality of first support columns are adapted to the plurality of second support columns.

[0013] As an optional solution, the first template has a first heat dissipation hole on the surface opposite to the first recess, and the second template has a second heat dissipation hole on the surface opposite to the second recess.

[0014] This utility model has at least the following beneficial effects:

[0015] This utility model provides a mold for making the bottom plate of a turnover box. During the extrusion molding process of the material by the first and second templates, the frustum-shaped protrusion and the receiving groove can cooperate with each other to form a support structure on the lower surface of the bottom plate, which can save materials and reduce the cost of making the bottom plate. The first groove provided on the circumference of the frustum cooperates with the receiving groove to form a reinforcing rib on the inner side of the support structure, thereby improving the strength of the support structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below.

[0017] Figure 1 A schematic diagram of the structure of a mold for making the bottom plate of a turnover box is provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the structure of the first template provided in this embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the structure of the second template provided in an embodiment of this utility model.

[0020] Figure label:

[0021] 1. First template; 11. First recess; 111. Frustum-shaped protrusion; 112. First groove; 113. Second groove; 12. Limiting block; 13. First support column; 2. Second template; 21. Second recess; 211. Receiving groove; 212. Protrusion; 22. Limiting groove; 23. Second support column. Detailed Implementation

[0022] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] In existing technology, a collapsible box includes a base plate, side panels, and a cover, with the cover and base plate respectively located at the upper and lower ends of the side panels. To facilitate handling, a support structure is provided on the lower surface of the base plate to create a gap between the base plate and the ground, allowing forklift forks to reach under the base plate during transport; simultaneously, the support structure provides support for the collapsible box. Currently, blow molding is commonly used for production, but the support structure in the produced base plate often lacks sufficient strength and is prone to damage.

[0024] Therefore, such as Figures 1 to 3 As shown in the figure, an embodiment of this utility model provides a mold for making the bottom plate of a turnover box to solve the above-mentioned technical problems.

[0025] A mold for manufacturing the bottom plate of a turnover box includes a first template 1 and a second template 2. The first template 1 has a first recess 11, and the bottom of the first recess 11 has a frustum-shaped protrusion 111. The cross-sectional area of ​​the frustum-shaped protrusion 111 gradually decreases from the first recess 11 in the direction away from the first recess 11. The height of the frustum-shaped protrusion 111 is greater than the depth of the first recess 11. A first groove 112 is provided on the circumference of the frustum. The second template 2 has a second recess 21. The shape of the second recess 21 matches the shape of the first recess 11. The bottom of the second recess 21 has a receiving groove 211. The frustum-shaped protrusion 111 can be accommodated inside the receiving groove 211. When the frustum-shaped protrusion 111 can be accommodated inside the receiving groove 211, there is a gap between the frustum-shaped protrusion 111 and the inner wall of the receiving groove 211, and there is a gap between the frustum-shaped protrusion 111 and the bottom of the second recess 21. During the extrusion molding process of the material by the first template 1 and the second template 2, the frustum-shaped protrusion 111 and the receiving groove 211 can cooperate with each other to form a support structure on the lower surface of the base plate, which can save materials and reduce the cost of manufacturing the base plate; the first groove 112 provided on the circumference of the frustum cooperates with the receiving groove 211 to form a reinforcing rib on the inner side of the support structure, thereby improving the strength of the support structure; the cross-sectional area of ​​the frustum-shaped protrusion 111 gradually decreases from the first recess 11 to the direction away from the first recess 11, which facilitates demolding.

[0026] In some embodiments, in order to improve the strength of the support structure, the top of the frustum-shaped protrusion 111 is provided with a second groove 113, so that the second groove 113 and the receiving groove 211 cooperate with each other to form a reinforcing rib on the bottom surface of the support structure.

[0027] In some embodiments, in order to reduce the cost of the production base plate, the bottom of the second recess 21 is provided with a plurality of protrusions 212. When the first template 1 and the second template 2 are engaged, a hollow structure is formed at the corresponding position of the protrusions 212, thereby reducing the amount of material used in the base plate; the top of the protrusions 212 and the bottom of the first recess 11 are spaced apart.

[0028] In some embodiments, in order to facilitate accurate alignment between the first template 1 and the second template 2, the first template 1 is provided with a limiting block 12 and the second template 2 is provided with a limiting groove 22. The limiting block 12 is adapted to the limiting groove 22 and the limiting block 12 can be engaged in the limiting groove 22.

[0029] In some embodiments, the first template 1 is provided with a plurality of first support columns 13, which are spaced apart outside the first recess 11. The second template 2 is provided with a plurality of second support columns 23, which are spaced apart outside the second recess 21. The plurality of first support columns 13 and the plurality of second support columns 23 are adapted to each other. When two adjacent first support columns 13 are pressed together, a hollow structure can be formed between the first template 1 and the second template 2, which can accelerate the heat diffusion from the first recess 11 and the second recess 21 to the outside.

[0030] In some embodiments, in order to accelerate the heat diffusion from the first recess 11 and the second recess 21 to the outside, the first template 1 is provided with a first heat dissipation hole on the surface opposite to the first recess 11, and the second template 2 is provided with a second heat dissipation hole on the surface opposite to the second recess 21.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mold for manufacturing the bottom plate of a turnover box, characterized in that, include The first template (1) is provided with a first recess (11), and a frustum-shaped protrusion (111) is provided at the bottom of the first recess (11). The height of the frustum-shaped protrusion (111) is greater than the depth of the first recess (11), and a first groove (112) is provided on the circumference of the frustum. The second template (2) is provided with a second recess (21), the shape of the second recess (21) matches the shape of the first recess (11), the bottom of the second recess (21) is provided with a receiving groove (211), the frustum-shaped protrusion (111) can be accommodated inside the receiving groove (211), and when the frustum-shaped protrusion (111) can be accommodated inside the receiving groove (211), there is a gap between the frustum-shaped protrusion (111) and the inner wall of the receiving groove (211), and there is a gap between the frustum-shaped protrusion (111) and the bottom of the second recess (21).

2. The mold for manufacturing the bottom plate of a turnover box according to claim 1, characterized in that, The top of the frustum-shaped protrusion (111) is provided with a second groove (113).

3. The mold for manufacturing the bottom plate of a turnover box according to claim 1, characterized in that, The bottom of the second recess (21) is provided with a protrusion (212). When the first template (1) and the second template (2) are engaged, the top of the protrusion (212) and the bottom of the first recess (11) are spaced apart.

4. A mold for manufacturing the bottom plate of a turnover box according to any one of claims 1 to 3, characterized in that, The first template (1) is provided with a limiting block (12), and the second template (2) is provided with a limiting groove (22). The limiting block (12) is adapted to the limiting groove (22).

5. The mold for manufacturing the bottom plate of a turnover box according to claim 4, characterized in that, The first template (1) is provided with a plurality of first support columns (13), which are spaced apart outside the first recess (11). The second template (2) is provided with a plurality of second support columns (23), which are spaced apart outside the second recess (21). The plurality of first support columns (13) and the plurality of second support columns (23) are adapted to each other.

6. The mold for manufacturing the bottom plate of a turnover box according to claim 4, characterized in that, The first template (1) has a first heat dissipation hole on the surface opposite to the first recess (11), and the second template (2) has a second heat dissipation hole on the surface opposite to the second recess (21).

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