Parts stacking box casting production mold

Abstract

This invention discloses a casting mold for stacked parts. The invention relates to the field of casting technology. The casting mold includes a first template and a second template. One side of the first template has a first part forming portion and a groove structure. The groove structure is recessed towards the inside of the first template. The inner bottom wall of the groove structure forms a second part forming portion. The first and second part forming portions are spaced apart along the thickness direction of the first template. One side of the second template has a third and a fourth part forming portion. The third and fourth part forming portions are spaced apart along the thickness direction of the second template. The first and third part forming portions correspond to each other, as do the second and fourth part forming portions. The casting mold for stacked parts according to the embodiments of this application can reduce the use of sand cores, reduce the size and weight of the sand cores, and thus help reduce production costs.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and in particular to a production mold for stacked casting of parts. Background Technology

[0002] In related technologies, stacked casting uses sand cores to achieve the stacked casting process, which can double the number of castings produced. Existing stacked casting processes use a method where the upper and lower castings are completely stacked. By setting a full-contour sand core in the sand mold, the upper and lower castings are separated to achieve casting. However, this method has a large sand core size and weight, resulting in high cost. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a production mold for stacked casting of parts, which can reduce the use of sand cores, reduce the size and weight of the sand cores, and thus help reduce production costs.

[0004] A part stacking casting production mold according to an embodiment of the present invention includes: a first template and a second template. A first part forming portion and a groove structure are formed on one side of the first template. The groove structure is recessed towards the inside of the first template. A second part forming portion is formed on the inner bottom wall of the groove structure. The first part forming portion and the second part forming portion are spaced apart along the thickness direction of the first template. A third part forming portion and a fourth part forming portion are formed on one side of the second template. The third part forming portion and the fourth part forming portion are spaced apart along the thickness direction of the second template. The first part forming portion and the third part forming portion correspond to each other, and the second part forming portion and the fourth part forming portion correspond to each other.

[0005] The part stack casting production mold according to the embodiments of this application can reduce the use of sand cores, reduce the size and weight of sand cores, and help reduce production costs.

[0006] According to some embodiments of the present invention, the groove structure and the first part forming portion are spaced apart.

[0007] According to some embodiments of the present invention, the inner sidewall of the groove structure has a sidewall section located between the first part forming part and the second part forming part, the second part forming part extending to the sidewall section, and the third part forming part and the fourth part forming part adjacent to each other.

[0008] According to some embodiments of the present invention, the shape of the first part forming part is the same as the shape of the third part forming part, and the shape of the second part forming part is the same as the shape of the fourth part forming part.

[0009] According to some embodiments of the present invention, there are multiple first part forming parts and multiple second part forming parts, multiple third part forming parts and multiple fourth part forming parts, multiple first part forming parts and multiple second part forming parts correspond one-to-one, multiple third part forming parts and multiple fourth part forming parts correspond one-to-one, and multiple first part forming parts and multiple third part forming parts correspond one-to-one, and multiple second part forming parts and multiple fourth part forming parts correspond one-to-one.

[0010] According to some embodiments of the present invention, the first part forming part, the second part forming part, the third part forming part and the fourth part forming part are all constructed as boss structures.

[0011] According to some embodiments of the present invention, the height by which the fourth part forming part protrudes from the second template is greater than the height by which the third part forming part protrudes from the second template.

[0012] According to some embodiments of the present invention, one of the first part forming part and the third part forming part is configured as a groove structure, and the other of the first part forming part and the third part forming part is configured as a boss structure; one of the second part forming part and the fourth part forming part is configured as a groove structure, and the other of the second part forming part and the fourth part forming part is configured as a boss structure.

[0013] According to some embodiments of the present invention, the second template is formed with a plurality of column structures, and both the third part forming part and the fourth part forming part are provided with at least one of the column structures, and the plurality of column structures are used to form a casting channel.

[0014] According to some embodiments of the present invention, both the first template and the second template are constructed as an integrally molded part.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the first template according to an embodiment of this application;

[0018] Figure 2 This is a top view of the first template according to an embodiment of this application;

[0019] Figure 3This is a schematic diagram of the second template according to an embodiment of this application;

[0020] Figure 4 This is a top view of the second template according to an embodiment of this application.

[0021] Figure label:

[0022] First template 1, first part forming part 11, groove structure 12, side wall section 121, second part forming part 13.

[0023] Second template 2, third part forming part 21, fourth part forming part 22, column structure 23. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The following is for reference. Figures 1-4 The present invention describes a part stacking casting production mold, which can be used to make corresponding sand molds by sand box, thereby achieving the effect of producing parts using sand molds.

[0026] According to an embodiment of the present invention, a part stacking casting production mold, such as Figures 1-4 As shown, the part stack casting production mold may include: a first template 1 and a second template 2. A first part forming portion 11 and a groove structure 12 are formed on one side of the first template 1. The groove structure 12 is recessed towards the inside of the first template 1. A second part forming portion 13 is formed on the inner bottom wall of the groove structure 12. The first part forming portion 11 and the second part forming portion 13 are spaced apart along the thickness direction of the first template 1. A third part forming portion 21 and a fourth part forming portion 22 are formed on one side of the second template 2. The third part forming portion 21 and the fourth part forming portion 22 are spaced apart along the thickness direction of the second template 2. The first part forming portion 11 and the third part forming portion 21 correspond to each other, and the second part forming portion 13 and the fourth part forming portion 22 correspond to each other.

[0027] It should be noted that in the relevant technologies, stacked casting uses sand cores to achieve the stacking process. The stacking process can double the number of castings produced. The existing stacked casting process uses a method in which the upper and lower castings are completely stacked. By setting a full-contour sand core in the sand mold, the upper and lower castings are separated to achieve casting. However, this method has a large sand core size and weight, resulting in high cost.

[0028] Based on this, this application proposes a part stacking casting production mold. A first template 1 can manufacture a first sand mold using a sand box, and a second template 2 can manufacture a second sand mold using a sand box. The first sand mold and the second sand mold can be assembled to form a complete sand mold capable of producing parts. A cavity is formed between the first and second sand molds, into which molten metal can be injected to achieve the effect of producing parts. One side of the first template 1 has a first part forming part 11 and a groove structure 12. The first part forming part 11 can cooperate with the sand box to form the first part sand mold on the first sand mold. The shape of the first part forming part 11 is complementary to the shape of the first part sand mold. The first part forming part 11 can be connected to the groove structure 12, or the first part forming part 11 can be spaced apart from the groove structure 12. The groove structure 12 is recessed towards the first template 1, and a second part forming part 13 is formed on the inner bottom wall of the groove structure 12. The second part forming part 13 can cooperate with the sand box to form the second part sand mold on the first sand mold. The shape of the second part forming part 13 is complementary to the shape of the second part sand mold. Along the thickness direction of the first template 1, the first part forming part 11 and the second part forming part 13 are spaced apart. Correspondingly, along the thickness direction of the first sand mold, the first part sand mold and the second part sand mold on the first sand mold are also spaced apart.

[0029] A third part forming part 21 and a fourth part forming part 22 are formed on one side of the second template 2. The third part forming part 21 can cooperate with the sand box to form a third part sand mold on the second sand mold. The shape of the third part forming part 21 is complementary to the shape of the third part sand mold. The fourth part forming part 22 can cooperate with the sand box to form a fourth part sand mold on the second sand mold. The shape of the fourth part forming part 22 is complementary to the shape of the fourth part sand mold. The third part forming part 21 and the fourth part forming part 22 are spaced apart along the thickness direction of the second template 2. Correspondingly, the third part sand mold and the fourth part sand mold on the second sand mold are also spaced apart along the thickness direction of the second sand mold.

[0030] The first part forming section 11 and the third part forming section 21 correspond to each other, that is, the first part sand mold and the third part sand mold correspond to each other. When the first sand mold is used with the second sand mold, the first part sand mold and the third part sand mold are set up accordingly. The first part sand mold and the third part sand mold can cooperate with each other to construct a cavity that can be used for casting. By pouring molten metal or the like into the cavity, the effect of producing parts can be achieved. The second part forming section 13 and the fourth part forming section 22 correspond to each other, that is, the second part sand mold and the fourth part sand mold correspond to each other. When the first sand mold is used with the second sand mold, the second part sand mold and the fourth part sand mold are set up accordingly. The second part sand mold and the fourth part sand mold can cooperate with each other to construct a cavity that can be used for casting. By pouring molten metal or the like into the cavity, the effect of producing parts can be achieved. By setting the first part forming section 11 and the third part forming section 21 to correspond, and the second part forming section 13 and the fourth part forming section 22 to correspond, a stacking effect of doubling the production of parts can be achieved.

[0031] When casting parts, a sand core can be used in conjunction with a sand mold to construct a cavity that can form the specific shape of the part. In this embodiment, the sand core can cooperate with a second part sand mold, completing the structure of the second part sand mold to create a shape suitable for part production. The sand core can assist the second and fourth part sand molds in defining the cavity. The shape constructed by the sand core and the second part sand mold can cooperate with the fourth part sand mold to achieve the effect of injecting molten metal into the cavity to produce the part. The shape and size of the sand core can be adjusted according to the shape of the second part sand mold. If the second and fourth part sand molds can jointly define a portion of the cavity for the part, the sand core can be constructed as a partial outline of the part, assisting the second and fourth part sand molds in defining the cavity. If the second and fourth part sand molds can jointly define the cavity, a sand core is not required. Compared with the prior art, the part stack casting production mold of this embodiment does not require a sand core of the full part outline size, reducing the use of sand cores, their size and weight, and thus lowering production costs.

[0032] In some embodiments of the present invention, such as Figure 1 As shown, the groove structure 12 and the first part forming part 11 are spaced apart.

[0033] The groove structure 12 and the first part forming part 11 are both located on the same side of the first template 1. The second part forming part 13 is located on the inner bottom wall of the groove structure 12. The groove structure 12 and the first part forming part 11 are spaced apart, which can achieve the effect of the second part forming part 13 and the first part forming part 11 being staggered along the arrangement direction of the groove structure 12 and the first part forming part 11, and further achieve the effect of the first part sand mold and the second part sand mold being staggered. When the first template 1 is as follows... Figure 2When the orientation is set, the arrangement direction of the groove structure 12 and the first part forming part 11 is as follows: Figure 2 In the Y direction. When the first and second sand molds are used together, a staggered stacking effect can be achieved. When the sand core is used to complete the structure of the second part's sand mold, it helps to reduce the amount of sand core used and save production costs.

[0034] In some embodiments of the present invention, such as Figures 1-4 As shown, the inner sidewall of the groove structure 12 has a sidewall section 121 located between the first part forming part 11 and the second part forming part 13, the second part forming part 13 extends to the sidewall section 121, and the third part forming part 21 and the fourth part forming part 22 are adjacent to each other.

[0035] The inner wall of the groove structure 12 has a sidewall section 121 located between the first part forming part 11 and the second part forming part 13. The sidewall section 121 separates the first part forming part 11 and the second part forming part 13. The second part forming part 13 is provided on the inner bottom wall of the groove structure 12 and extends to and connects with the sidewall section 121. When the first template 1 manufactures the first sand mold using a sand box, the sidewall section 121 and the second part forming part 13 together define the second part sand mold. The second part sand mold can be matched with a sand core to form a shape that can produce parts. The third part forming part 21 and the fourth part forming part 22 are adjacent to each other. Correspondingly, the third part sand mold and the fourth part sand mold are adjacent to each other. The third part sand mold can be matched with the first part sand mold to construct a cavity for producing parts, and the fourth part sand mold can be matched with the second part sand mold to construct a cavity for producing parts, thereby realizing the casting production of parts.

[0036] In some embodiments of the present invention, the shape of the first part forming part 11 is the same as the shape of the third part forming part 21, and the shape of the second part forming part 13 is the same as the shape of the fourth part forming part 22.

[0037] The first part forming section 11 and the third part forming section 21 correspond to each other, as do the first part sand mold and the third part sand mold. The shape of the first part forming section 11 is the same as that of the third part forming section 21. Both the shape of the first part forming section 11 and the shape of the third part forming section 21 are constructed as the outer contour shape of the part. Correspondingly, the shape of the first part sand mold is the same as that of the third part sand mold. The first part sand mold can cooperate with the third part sand mold to jointly construct a cavity for producing the part, reducing the risk of molten metal leakage during casting due to mismatch in shape and size between the first part sand mold and the third part sand mold.

[0038] The second part forming section 13 and the fourth part forming section 22 correspond to each other, as do the second part sand mold and the fourth part sand mold. The shape of the second part forming section 13 is the same as that of the fourth part forming section 22. Both the shape of the second part forming section 13 and the shape of the fourth part forming section 22 are constructed as the outer contour shape of the part. Correspondingly, the shape of the second part sand mold is the same as that of the fourth part sand mold. The second part sand mold can cooperate with the fourth part sand mold to jointly construct the cavity for producing the part, reducing the risk of molten metal leakage during casting due to mismatch in shape and size between the second part sand mold and the fourth part sand mold.

[0039] In some embodiments of the present invention, there are multiple first part forming parts 11 and multiple second part forming parts 13, multiple third part forming parts 21 and multiple fourth part forming parts 22, multiple first part forming parts 11 and multiple second part forming parts 13 correspond one-to-one, multiple third part forming parts 21 and multiple fourth part forming parts 22 correspond one-to-one, and multiple first part forming parts 11 and multiple third part forming parts 21 correspond one-to-one, and multiple second part forming parts 13 and multiple fourth part forming parts 22 correspond one-to-one.

[0040] There are multiple first part forming sections 11 and multiple second part forming sections 13, and correspondingly multiple first part sand molds and multiple corresponding second part sand molds. The first template 1 includes multiple first part forming sections 11 and multiple second part forming sections 13, which correspond one-to-one. Each first part forming section 11 has an adjacent second part forming section 13. Correspondingly, there are also multiple first part sand molds and multiple second part sand molds, which correspond one-to-one. Each first part sand mold has an adjacent second part sand mold. Along the thickness direction of the first sand mold, each first part sand mold is spaced apart from each second part sand mold. Along the arrangement direction of the first part sand mold and the second part sand mold, each first part sand mold and each second part sand mold are staggered, thereby achieving the effect of staggered stacking.

[0041] There are multiple third part forming sections 21 and multiple fourth part forming sections 22, and correspondingly multiple third part sand molds and multiple corresponding fourth part sand molds. The second template 2 includes multiple third part forming sections 21 and multiple fourth part forming sections 22, which correspond one-to-one. Each third part forming section 21 has an adjacent fourth part forming section 22. Correspondingly, there are also multiple third part sand molds and multiple fourth part sand molds, which correspond one-to-one. Each third part sand mold has an adjacent fourth part sand mold. Along the thickness direction of the second sand mold, each third part sand mold is spaced apart from each fourth part sand mold. Along the arrangement direction of the third part sand molds and the fourth part sand molds, each third part sand mold and each fourth part sand mold are staggered, thereby achieving the effect of staggered stacking.

[0042] Multiple first part forming units 11 and multiple third part forming units 21 correspond one-to-one. Correspondingly, multiple first part sand molds and multiple third part sand molds correspond one-to-one. Each first part sand mold can be combined with the corresponding third part sand mold to form a cavity for producing a part, thereby realizing the production of the part. Multiple second part forming units 13 and multiple fourth part forming units 22 correspond one-to-one. Correspondingly, multiple second part sand molds and multiple fourth part sand molds correspond one-to-one. Each second part sand mold can be combined with the corresponding fourth part sand mold to form a cavity for producing a part, thereby realizing the production of the part.

[0043] In some embodiments of the present invention, the first part forming part 11, the second part forming part 13, the third part forming part 21 and the fourth part forming part 22 are all constructed as boss structures.

[0044] The first sand mold and the first template 1 have complementary shapes; the first part sand mold and the first part forming part 11 have complementary shapes; the second part sand mold and the second part forming part 13 have complementary shapes; the second sand mold and the second template 2 have complementary shapes; the third part sand mold and the third part forming part 21 have complementary shapes; and the fourth part sand mold and the fourth part forming part 22 have complementary shapes. The first part forming part 11, the second part forming part 13, the third part forming part 21, and the fourth part forming part 22 are all constructed as boss structures, allowing each of the first, second, third, and fourth part sand molds to be constructed as a groove structure. The first part sand mold can mate with the third part sand mold, forming a cavity between the two groove structures; the second part sand mold can mate with the fourth part sand mold, forming a cavity between the two groove structures. This achieves the effect of manufacturing the first and second sand molds using the first template 1 and the second template 2, and then casting the part using the cavities constructed from the first and second sand molds.

[0045] In some embodiments of the present invention, the height of the fourth part forming part 22 protruding from the second template 2 is higher than the height of the third part forming part 21 protruding from the second template 2.

[0046] The second part forming part 13 is located on the inner bottom wall of the groove structure 12 in the first template 1. The first part forming part 11 protrudes from the first template 1, and the second part forming part 13 is recessed towards the first template 1. That is, on the first sand mold, the first part sand mold is recessed towards the first sand mold, and the second part sand mold protrudes relative to the first sand mold. The fourth part forming part 22 protrudes from the second template 2 at a higher height than the third part forming part 21 protrudes from the second template 2. The second template 2 and the second sand mold are complementary, that is, on the second sand mold, the depth of the fourth part sand mold's recess is greater than the depth of the third part sand mold's recess. This allows the first part forming part 11 to correspond to the third part forming part 21, and the second part forming part 13 to correspond to the fourth part forming part 22. This reduces the risk of conflict between the first and third part sand molds, and between the second and fourth part sand molds, when the first and second sand molds are matched.

[0047] In some embodiments of the present invention, one of the first part forming part 11 and the third part forming part 21 is a groove structure, and the other of the first part forming part 11 and the third part forming part 21 is a boss structure; one of the second part forming part 13 and the fourth part forming part 22 is a groove structure, and the other of the second part forming part 13 and the fourth part forming part 22 is a boss structure.

[0048] The first sand mold is complementary to the first template 1; the first part sand mold is complementary to the first part forming part 11; the second part sand mold is complementary to the second part forming part 13; the second sand mold is complementary to the second template 2; the third part sand mold is complementary to the third part forming part 21; and the fourth part sand mold is complementary to the fourth part forming part 22. One of the first part forming part 11 and the third part forming part 21 has a groove structure, and the other has a boss structure. This allows one of the first and third part sand molds to have a boss structure, while the other has a groove structure. The groove structure and the boss structure work together to form a cavity for producing parts between the first and third part sand molds, thus achieving the effect of producing parts by pouring into the cavity.

[0049] One of the second part forming section 13 and the fourth part forming section 22 has a groove structure, and the other part forming section 13 and the fourth part forming section 22 has a boss structure. This makes one of the second part sand mold and the fourth part sand mold a boss structure, and the other part a groove structure. The groove structure and the boss structure cooperate with each other, that is, a cavity for producing parts is formed between the second part sand mold and the fourth part sand mold, thereby achieving the effect of producing parts by casting the cavity.

[0050] In some embodiments of the present invention, the second template 2 is formed with a plurality of column structures 23, and the third part forming part 21 and the fourth part forming part 22 are each provided with at least one column structure 23, and the plurality of column structures 23 are used to form a casting channel.

[0051] The second template 2 has multiple columnar structures 23, which in turn form multiple tubular structures in the corresponding second sand mold. Both the third part forming section 21 and the fourth part forming section 22 have at least one columnar structure 23. Both the third and fourth part sand molds are connected to at least one tubular structure. The multiple columnar structures 23 form casting channels; that is, the multiple tubular structures can be connected to form casting channels. Both the third and fourth part sand molds are connected to at least one casting channel. When the third part sand mold and the first part sand mold cooperate to form a cavity, molten metal can be injected into the cavity through the casting channel, thereby achieving the effect of producing parts through casting. When the fourth part sand mold and the second part sand mold cooperate to form a cavity, molten metal can be injected into the cavity through the casting channel, thereby achieving the effect of producing parts through casting.

[0052] In some embodiments of the present invention, the first template 1 and the second template 2 are both constructed as an integrally formed part.

[0053] The first template 1 can be used to manufacture the first sand mold through a sand box, and the second template 2 can be used to manufacture the second sand mold through a sand box. The first template 1 and the second template 2 are both constructed as an integral molding part, which can improve the accuracy of the first template 1 and the second template 2, further improve the accuracy of the first sand mold and the second sand mold, and thus improve the accuracy of the produced parts.

[0054] Other configurations and operations of the part stacking casting production mold according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A die for casting stacked parts, characterized in that, include: A first template (1) has a first part forming part (11) and a groove structure (12) formed on one side. The groove structure (12) is recessed into the first template (1). A second part forming part (13) is formed on the inner bottom wall of the groove structure (12). The first part forming part (11) and the second part forming part (13) are spaced apart along the thickness direction of the first template (1). The second template (2) has a third part forming part (21) and a fourth part forming part (22) formed on one side. The third part forming part (21) and the fourth part forming part (22) are spaced apart along the thickness direction of the second template (2). The first part forming part (11) corresponds to the third part forming part (21), and the second part forming part (13) corresponds to the fourth part forming part (22).

2. The part stacking casting production mold according to claim 1, characterized in that, The groove structure (12) is spaced apart from the first part forming part (11).

3. The part stacking casting production mold according to claim 2, characterized in that, The inner sidewall of the groove structure (12) has a sidewall section (121) located between the first part forming part (11) and the second part forming part (13), the second part forming part (13) extending to the sidewall section (121), and the third part forming part (21) and the fourth part forming part (22) adjacent to each other.

4. The part stacking casting production mold according to claim 1, characterized in that, The shape of the first part forming part (11) is the same as the shape of the third part forming part (21), and the shape of the second part forming part (13) is the same as the shape of the fourth part forming part (22).

5. The part stacking casting production mold according to claim 1, characterized in that, There are multiple first part forming parts (11) and multiple second part forming parts (13), multiple third part forming parts (21) and multiple fourth part forming parts (22), multiple first part forming parts (11) and multiple second part forming parts (13) correspond one-to-one, multiple third part forming parts (21) and multiple fourth part forming parts (22) correspond one-to-one, and multiple first part forming parts (11) and multiple third part forming parts (21) correspond one-to-one, multiple second part forming parts (13) and multiple fourth part forming parts (22) correspond one-to-one.

6. The part stacking casting production mold according to any one of claims 1-5, characterized in that, The first part forming part (11), the second part forming part (13), the third part forming part (21) and the fourth part forming part (22) are all constructed as boss structures.

7. The part stacking casting production mold according to claim 6, characterized in that, The height of the fourth part forming part (22) protruding from the second template (2) is higher than the height of the third part forming part (21) protruding from the second template (2).

8. The part stacking casting production mold according to any one of claims 1-5, characterized in that, One of the first part forming part (11) and the third part forming part (21) has a groove structure, and the other of the first part forming part (11) and the third part forming part (21) has a boss structure. One of the second part forming part (13) and the fourth part forming part (22) has a groove structure, and the other of the second part forming part (13) and the fourth part forming part (22) has a boss structure.

9. The part stacking casting production mold according to any one of claims 1-5, characterized in that, The second template (2) has multiple column structures (23), and both the third part forming part (21) and the fourth part forming part (22) have at least one column structure (23). The multiple column structures (23) are used to form a casting channel.

10. The part stacking casting production mold according to any one of claims 1-5, characterized in that, Both the first template (1) and the second template (2) are constructed as an integral molded part.

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