Lunch box mold easy to demold

Abstract

The utility model discloses a meal box mould easy to demould, which comprises a convex mould and a concave mould which are oppositely arranged, a cavity is formed between the convex mould and the concave mould, the convex mould is fixed on a first mould plate, the concave mould is movably arranged on a second mould plate, the second mould plate is provided with a pushing assembly for pushing the concave mould, and the convex mould is fixed on the first mould plate. The pushing assembly comprises a plurality of guide columns and a plurality of pushing springs, guide holes allowing the guide columns to stretch into are formed in the female die, and blind holes allowing the pushing springs to stretch into are further formed in the face, close to the second die plate, of the female die. The movable end of each pushing spring abuts against the bottom face of the corresponding blind hole, and the deformation stroke of each pushing spring is smaller than the length of the corresponding guide column. According to the meal box mold easy to demold, the problem that a meal box is easy to adhere during demolding is solved, so that damage to the meal box is reduced, and the production quality of the meal box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fast food box moulds, in particular to a lunch box mould which is easy to demould. Background Art

[0002] Today's plastic fast food boxes have the characteristics of low toxicity, high melting point, strong plasticity, simple production and relatively low cost, and have become the mainstream material for disposable fast food boxes. At present, in the production process of fast food boxes, it is necessary to use fast food box molds for injection molding. During the use of fast food box molds, there are mainly the following defects: after the fast food box mold is injection molded, during the process of demoulding the fast food box, the fast food box is easy to adhere to the mold cavity of the mold, and the fast food box is easy to be damaged during demoulding, which reduces the production quality of the fast food box. Utility Model Content

[0003] The utility model aims to provide a lunch box mould which is easy to demould, thereby solving the problem that the fast food box is easy to adhere when demoulding, thereby reducing the damage of the fast food box and improving the production quality of the fast food box.

[0004] In order to achieve the above purpose, the solution of the utility model is:

[0005] A lunch box mould that is easy to demould comprises a male mould and a female mould that are arranged opposite to each other, a mould cavity is formed between the male mould and the female mould, the male mould is fixed on a first mould plate, the female mould is movably mounted on a second mould plate, a pushing assembly for pushing the female mould is arranged on the second mould plate, the pushing assembly comprises a plurality of guide posts and a plurality of push springs, the female mould is provided with guide holes for each of the guide posts to extend into, a blind hole for each of the push springs to extend into is further provided on a side of the female mould close to the second mould plate, the movable end of each of the push springs abuts against the bottom surface of the corresponding blind hole, and the deformation stroke of each of the push springs is less than the length of each of the guide posts.

[0006] There are four guide posts, each of which is arranged at a corner of the die.

[0007] There are four push springs, and each push spring is arranged in one-to-one correspondence with each guide column.

[0008] The punch includes a punch body and a first annular boss arranged in the punch body, a first annular cavity is formed between the first annular boss and the punch body, the die includes a die body and a second annular boss arranged on the die body, a second annular cavity is formed in the second annular boss, when the punch body and the die body are molded together, the second annular boss extends into the first annular cavity, and the first annular boss extends into the second annular cavity, and the cavity is formed between the first annular boss and the second annular cavity.

[0009] The male mold body is fixed on the first mold plate, and the female mold body is movably installed on the second mold plate.

[0010] After adopting the above structure, the utility model provides a lunch box mold which is easy to demold. A pushing component is added to the second template of the mold. At the moment of demolding, the pushing force of the pushing spring is used to slightly lift up the die, thereby ejecting the fast food box formed in the cavity and making it easier to adhere to the punch, thereby facilitating the subsequent grabbing of the robot arm and achieving rapid demolding.

[0011] Therefore, the utility model provides a lunch box mold that is easy to demould, which solves the problem that the fast food box is easy to adhere when demoulding, thereby reducing the damage of the fast food box and improving the production quality of the fast food box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a lunch box mold that is easy to demould according to the utility model;

[0013] Figure 2 This is a schematic diagram of the exploded structure of a lunch box mold that is easy to demould according to the utility model;

[0014] Figure 3 This is another schematic diagram of the exploded structure of a lunch box mold that is easy to demould according to the utility model.

[0015] In the figure:

[0016] Punch 1 Punch body 11

[0017] First annular boss 12 First annular cavity 13

[0018] Die 2 Die body 21

[0019] Guide hole 211 Blind hole 212

[0020] Second annular boss 22 Second annular cavity 23

[0021] First template 3 Second template 4

[0022] Guide column 51 Push spring 52 DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0024] A lunch box mold that is easy to demould, such as Figure 1-Figure 3 As shown, it includes a relatively arranged male mold 1 and a female mold 2, the male mold 1 includes a male mold body 11 and a first annular boss 12 arranged in the male mold body 11, a first annular cavity 13 is formed between the first annular boss 12 and the male mold body 11, the female mold 2 includes a female mold body 21 and a second annular boss 22 arranged on the female mold body 21, a second annular cavity 23 is opened in the second annular boss 22, when the male mold body 11 and the female mold body 21 are molded, the second annular boss 22 extends into the first annular cavity 13, and the first annular boss 12 extends into the second annular cavity 23, and a cavity for forming a fast food box is formed between the first annular boss 12 and the second annular cavity 23. It should be noted that the structure and matching relationship of the male mold 1 and the female mold 2 are conventional technologies in this field.

[0025] The male mold body 11 is fixed on the first template 3, and the female mold body 21 is movably installed on the second template 4. The second template 4 is provided with a pushing component for pushing the female mold 2. The pushing component includes multiple guide columns 51 and multiple pushing springs 52. The female mold body 21 is provided with guide holes 211 for each guide column 51 to extend into. The side of the female mold body 21 close to the second template 4 is also provided with a blind hole 212 for each pushing spring 52 to extend into. The movable end of each pushing spring 52 is against the bottom surface of the corresponding blind hole 212. The deformation stroke of each pushing spring 52 is less than the length of each guide column 51, thereby ensuring that the female mold 2 will not separate from the second template 4 during the demolding process.

[0026] Preferably, there are four guide posts 51, each of which is disposed at a corner of the die body 21. There are four push springs 52, each of which is disposed in one-to-one correspondence with each guide post 51. This ensures that the push force of the push springs 52 on the die 2 is uniform, and the die 2 is lifted up steadily by the push springs 52.

[0027] After adopting the above structure, the utility model provides a lunch box mold which is easy to demold. A pushing component is added to the second template 4 of the mold. At the moment of demolding, the entire female mold 2 is slightly lifted up by the thrust of the pushing spring 52, thereby ejecting the fast food box formed in the cavity and making it easier to adhere to the male mold 1, thereby facilitating the subsequent grasping of the robot arm and achieving rapid demolding.

[0028] Therefore, the utility model provides a lunch box mold that is easy to demould, which solves the problem that the fast food box is easy to adhere when demoulding, thereby reducing the damage of the fast food box and improving the production quality of the fast food box.

[0029] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A lunch box mold that is easy to demould, comprising a male mold and a female mold that are arranged opposite to each other, a cavity is formed between the male mold and the female mold, the male mold is fixed on a first mold plate, and the female mold is movably mounted on a second mold plate, characterized in that: The second template is provided with a pushing component for pushing the die, and the pushing component includes a plurality of guide posts and a plurality of pushing springs. The die is provided with guide holes for each of the guide posts to extend into, and a side of the die close to the second template is also provided with a blind hole for each of the pushing springs to extend into, and the movable end of each of the pushing springs abuts against the bottom surface of the corresponding blind hole, and the deformation stroke of each of the pushing springs is less than the length of each of the guide posts.

2. The easy-to-demold lunch box mold according to claim 1, characterized in that: There are four guide posts, each of which is arranged at a corner of the die.

3. The easy-to-demold lunch box mold according to claim 2, characterized in that: There are four push springs, and each push spring is arranged in one-to-one correspondence with each guide column.

4. The easy-to-demold lunch box mold according to claim 1, characterized in that: The punch includes a punch body and a first annular boss arranged in the punch body, a first annular cavity is formed between the first annular boss and the punch body, the die includes a die body and a second annular boss arranged on the die body, a second annular cavity is formed in the second annular boss, when the punch body and the die body are molded together, the second annular boss extends into the first annular cavity, and the first annular boss extends into the second annular cavity, and the cavity is formed between the first annular boss and the second annular cavity.

5. The easy-to-demold lunch box mold according to claim 4, characterized in that: The male mold body is fixed on the first mold plate, and the female mold body is movably installed on the second mold plate.

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