Horn part forming die

Abstract

The utility model provides a horn part forming mold, belongs to the technical field of injection molding molds, mainly aims to solve the problem that a traditional injection molding mold is high in manufacturing cost, and adopts the technical scheme that the horn part forming mold comprises a plate A and a plate B, two groups of mold core assemblies are arranged between the plate A and the plate B, and each mold core assembly comprises a front mold core and a rear mold core; a front mold core and a rear mold core are respectively arranged at the bottom of the plate A and the top of the plate B; demolding assemblies are arranged on the two mold core assemblies, each demolding assembly comprises a core-pulling positioning block, a through groove is formed in the top of the front mold core, and the core-pulling positioning blocks are arranged in the through grooves in a sliding and penetrating mode; through the arrangement of the demolding assembly, the left loose core and the right loose core are arranged below the loose core positioning block, and the bottom ends of the left loose core and the right loose core can be respectively connected with two products, so that compared with the traditional mode that each product needs to be equipped with an independent inclined loose core mechanism, the mold structure is simplified, the number of parts is reduced, and the production cost is reduced. Therefore, the assembling difficulty and the manufacturing cost of the die are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding dies, and more specifically, particularly relates to a die for forming horn parts. Background Technique

[0002] As a core component in electroacoustic products, the shape of the horn housing is usually relatively complex and is also more complex in the die design and manufacturing process; and a common feature of the horn housing is that it has an inclined rubber position feature, which requires a corresponding inclined core-pulling mechanism to be designed in the die to complete demolding.

[0003] For a single horn part, usually only one inclined core-pulling is required. However, if multiple horn parts are injection-molded simultaneously using a multi-cavity die, in the case of 1 out of 4 cavities, each product's inclined rubber position feature corresponds to an independent inclined core-pulling. Then, for a 1 out of 4 cavity die, 4 inclined core-pullings need to be configured, which will undoubtedly increase the manufacturing cost and assembly difficulty of the die. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a die for forming horn parts to solve the technical problems in the prior art that in the traditional injection molding die, when multiple horn parts are injection-molded simultaneously, inclined core-pullings need to be configured corresponding to the inclined rubber position features of each product, increasing the die assembly difficulty and manufacturing cost.

[0005] The purpose and effect of the die for forming horn parts of the utility model are achieved by the following specific technical means:

[0006] A die for forming horn parts includes a plate A and a plate B. There are two sets of die core assemblies arranged between the plate A and the plate B. The die core assemblies include a front die core and a rear die core. The front die core is arranged at the bottom of the plate A, and the rear die core is arranged at the top of the plate B respectively; Demolding assemblies are arranged on both sets of die core assemblies. The demolding assemblies include core-pulling positioning blocks. A through groove is opened at the top of the front die core, and the core-pulling positioning blocks are slidably inserted into the through groove.

[0007] In a preferred embodiment, two sets of grooves for product injection molding are arranged at the top of the rear die core. The bottom end of the core-pulling positioning block is fixedly connected with a left T-shaped seat and a right T-shaped seat through multiple groups of screws.

[0008] In a preferred embodiment, two sets of first T-shaped chutes are respectively opened at the bottoms of the left T-shaped seat and the right T-shaped seat. The top ends of the left core-pulling and the right core-pulling are respectively slidably connected with the two sets of first T-shaped chutes, and the bottom ends of the left core-pulling and the right core-pulling can be respectively connected with the product.

[0009] In a preferred embodiment, one side of the A plate is fixedly connected with an oil cylinder fixing block through multiple groups of screws. An oil cylinder is arranged on one side of the oil cylinder fixing block. A U-shaped through groove is formed at the top of the oil cylinder fixing block. One end of the oil cylinder push rod passes through the U-shaped through groove and is connected with an oil cylinder connecting block.

[0010] In a preferred embodiment, a first installation groove is formed at the top of the A plate. Multiple groups of first wear-resistant blocks are arranged at the bottom of the first installation groove. One side of the T-shaped seat is connected with the oil cylinder connecting block, and the bottom of the T-shaped seat contacts multiple groups of the first wear-resistant blocks.

[0011] In a preferred embodiment, multiple groups of pressing blocks are arranged on the inner walls on both sides of the first installation groove. Steps are arranged on both sides of the T-shaped seat. The bottoms of multiple groups of pressing blocks respectively contact two groups of the steps. A second installation groove is formed at the top of the T-shaped seat, and a second wear-resistant block is arranged in the second installation groove.

[0012] In a preferred embodiment, one end of the T-shaped seat is provided with an inclined surface. A third installation groove is formed in the inclined surface. A T-shaped block is arranged in the third installation groove. A second T-shaped sliding groove is formed at the top of the core-pulling positioning block, and the T-shaped block is slidably connected with the second T-shaped sliding groove.

[0013] In a preferred embodiment, a hot runner plate is arranged at the top of the A plate. A panel is arranged at the top of the hot runner plate, and a positioning ring is arranged at the top of the panel; a bearing plate is arranged at the bottom of the B plate. Two groups of square irons are arranged at the bottom of the bearing plate. Two groups of ejector plates are arranged between the two groups of square irons, and the bottoms of the two groups of square irons are connected with the same bottom plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Through the arrangement of the core-pulling positioning block, the left core-pulling and the right core-pulling, when using the mold, a left T-shaped seat and a right T-shaped seat are connected to the bottom of the core-pulling positioning block, and a left core-pulling and a right core-pulling are respectively connected to the bottoms of the left T-shaped seat and the right T-shaped seat. A product can be connected to the bottom of each of the left core-pulling and the right core-pulling. Compared with the traditional method of equipping each product with an independent inclined core-pulling mechanism, the mold structure is simplified, the number of parts and the complexity of the processing technology are reduced, thereby reducing the assembly difficulty and manufacturing cost of the mold, and making the manufacturing of the mold more economical.

[0016] 2. Through the arrangement of the oil cylinder and the T-shaped seat, when using this mold, it is driven by a unified oil cylinder, causing the push rod of the oil cylinder to retract, making the oil cylinder connecting block and the T-shaped seat move towards the oil cylinder, and at the same time making the core-pulling positioning block move along the T-shaped block and move upward along the through groove, so as to drive the left core-pulling and the right core-pulling to perform demolding actions simultaneously. Moreover, the two core-pullings can move independently without interference, ensuring the stability of demolding and improving the injection molding quality of the product. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a mold for forming a horn part of the present utility model;

[0018] Figure 2 It is an exploded view of a mold for forming a horn part of the present utility model;

[0019] Figure 3 It is a schematic structural diagram after the front mold core and the demolding assembly of a mold for forming a horn part of the present utility model are disassembled;

[0020] Figure 4 It is a schematic structural diagram after the demolding assembly of a mold for forming a horn part of the present utility model is disassembled;

[0021] Figure 5 is Figure 4 Schematic structural diagram after disassembly;

[0022] Figure 6 It is a schematic structural diagram after the A plate and the demolding assembly of a mold for forming a horn part of the present utility model are disassembled.

[0023] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0024] 11. A plate; 12. B plate; 13. Product; 14. Hot runner plate; 15. Panel; 16. Locating ring; 17. Support plate; 18. Square iron; 19. Ejector plate; 20. Bottom plate; 21. Front mold core; 22. Rear mold core; 23. Through groove; 31. Core-pulling positioning block; 32. Left T-shaped seat; 33. Right T-shaped seat; 34. First T-shaped sliding groove; 35. Left core-pulling; 36. Right core-pulling; 37. Oil cylinder fixing block; 38. Oil cylinder; 39. U-shaped through groove; 40. Oil cylinder connecting block; 41. First installation groove; 42. First wear-resistant block; 43. T-shaped seat; 44. Second installation groove; 45. Second wear-resistant block; 46. Third installation groove; 47. T-shaped block; 48. Second T-shaped sliding groove; 49. Pressing block. Detailed Description of the Preferred Embodiment

[0025] The following further describes in detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0026] Embodiment:

[0027] As shown in the appended Figure 1 to the appended Figure 6 as shown:

[0028] The present utility model provides a mold for forming a horn part, which includes a plate A 11 and a plate B 12. A core assembly is installed between the plate A 11 and the plate B 12. The core assembly includes a front core 21 and a rear core 22. The front core 21 and the rear core 22 are respectively installed at the bottom of the plate A 11 and the top of the plate B 12. On these two sets of core assemblies, demolding assemblies are provided to achieve the smooth demolding of the product 13; the demolding assembly includes a core-pulling positioning block 31. A through groove 23 is opened at the top of the front core 21. The core-pulling positioning block 31 can slide along the through groove 23 at the top of the front core 21; two grooves for injection molding of the product 13 are provided at the top of the rear core 22. The bottom end of the core-pulling positioning block 31 is fixedly connected with a left T-shaped seat 32 and a right T-shaped seat 33 by screws.

[0029] Please refer to such as Figure 2 、 Figure 4 and Figure 5 as shown. At the bottom of the left T-shaped seat 32 and the right T-shaped seat 33, two sets of first T-shaped sliding grooves 34 are respectively opened; at the top ends of the left core-pulling 35 and the right core-pulling 36, they are respectively slidably connected with these two sets of first T-shaped sliding grooves 34, and the bottom ends of the left core-pulling 35 and the right core-pulling 36 can be connected with the product 13. By integrating the left core-pulling 35 and the right core-pulling 36 below the core-pulling positioning block 31, compared with the traditional mold that needs to be equipped with an independent inclined core-pulling mechanism for each product, the number of parts and the complexity of the processing technology are reduced, thus greatly reducing the assembly difficulty and manufacturing cost of the mold, making the manufacturing of the mold more economical; at the same time, since the left core-pulling 35 and the right core-pulling 36 can work independently of each other, the synchronous demolding of two products 13 is also achieved, further improving the production efficiency.

[0030] Please refer to such as Figure 2 、 Figure 4 and Figure 6As shown, one side of the A plate 11 is fixedly connected with a cylinder fixing block 37 through multiple groups of screws. One side of the cylinder fixing block 37 is provided with a cylinder 38. The top of the cylinder fixing block 37 is also provided with a U-shaped through groove 39. One end of the push rod of the cylinder 38 passes through the U-shaped through groove 39 and is connected to the cylinder connecting block 40, and one side of the T-shaped seat 43 is connected to this cylinder connecting block 40. When using this mold, by driving the cylinder 38, the push rod of the cylinder 38 will retract, driving the cylinder connecting block 40 and the T-shaped seat 43 to move together in the direction of the cylinder 38. At the same time, this movement will also drive the core-pulling positioning block 31 to slide along the T-shaped block 47 and move upward along the through groove 23, so as to synchronously drive the left core-pulling 35 and the right core-pulling 36 to perform the demolding action.

[0031] Please refer to as Figure 5 and Figure 6 As shown, a first installation groove 41 is opened at the top of the A plate 11. Multiple groups of first wear-resistant blocks 42 are provided at the bottom of the first installation groove 41, and the bottom of the T-shaped seat 43 just contacts these first wear-resistant blocks 42. These first wear-resistant blocks 42 are used to support the T-shaped seat 43 at the top. At the same time, the use of these first wear-resistant blocks 42 can effectively reduce the wear generated during the repeated sliding of the T-shaped seat 43, better disperse the contact stress, and prevent local excessive wear.

[0032] Please refer to as Figure 4 and Figure 5 As shown, multiple groups of pressing blocks 49 are also provided on the inner walls of both sides of the first installation groove 41. At the same time, steps are provided on both sides of the T-shaped seat 43. The bottoms of these pressing blocks 49 are respectively in contact with these steps, which can provide good guiding support for the T-shaped seat 43. Moreover, these pressing blocks 49 can effectively limit the sway of the T-shaped seat 43 in the horizontal direction, ensuring the stability of its movement. At the same time, a second installation groove 44 is opened at the top of the T-shaped seat 43, and a second wear-resistant block 45 is arranged inside the groove. The second wear-resistant block 45 contacts the top hot runner plate 14, further reducing the wear risk of the T-shaped seat 43 during the movement process and extending the service life of the mold.

[0033] Please refer to as Figure 5 As shown, one end of the T-shaped seat 43 is also provided with an inclined surface. A third installation groove 46 is opened on this inclined surface. A T-shaped block 47 is installed inside the third installation groove 46. A second T-shaped sliding groove 48 is opened at the top of the core-pulling positioning block 31, and the T-shaped block 47 can be slidably connected with this second T-shaped sliding groove 48. Utilizing the sliding fit between the T-shaped block 47 and the second T-shaped sliding groove 48, when the T-shaped seat 43 moves towards the cylinder 38, the core-pulling positioning block 31 can move upward along the through groove 23.

[0034] Please refer to as Figure 2As shown, a hot runner plate 14 is provided at the top of the A plate 11. A face plate 15 is provided at the top of this hot runner plate 14, and a locating ring 16 is installed at the top of the face plate 15. This is not only conducive to realizing the overall heat management of the mold and ensuring the temperature control during the injection molding process of the horn parts, but also the setting of the locating ring 16 can provide an accurate positioning reference for subsequent processes. In the lower half of the mold, a support plate 17 is provided at the bottom of the B plate 12. Two sets of square bars 18 are connected to the bottom of the support plate 17. Two sets of ejector plates 19 are installed between these two sets of square bars 18. At the same time, a bottom plate 20 is connected to the bottom of these two sets of square bars 18.

[0035] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A mold for forming a horn part, characterized in that: It includes a plate A (11) and a plate B (12). There are two sets of die core assemblies arranged between the plate A (11) and the plate B (12). The die core assembly includes a front die core (21) and a rear die core (22). The bottom of the plate A (11) and the top of the plate B (12) are respectively provided with the front die core (21) and the rear die core (22); Demoulding assemblies are arranged on both sets of the die core assemblies. The demoulding assembly includes a core-pulling positioning block (31). A through groove (23) is opened at the top of the front die core (21), and the core-pulling positioning block (31) is slidably arranged in the through groove (23).

2. The mold for forming a horn part as described in claim 1, characterized in that: Two sets of grooves for the injection molding of the product (13) are arranged at the top of the rear die core (22). The bottom end of the core-pulling positioning block (31) is fixedly connected with a left T-shaped seat (32) and a right T-shaped seat (33) through multiple sets of screws.

3. The mold for forming a horn part according to claim 2, characterized in that: Two sets of first T-shaped chutes (34) are respectively opened at the bottoms of the left T-shaped seat (32) and the right T-shaped seat (33). The top ends of the left core-pulling (35) and the right core-pulling (36) are respectively slidably connected with the two sets of first T-shaped chutes (34), and the bottom ends of the left core-pulling (35) and the right core-pulling (36) can be respectively connected with the product (13).

4. A mold for forming a horn part as described in claim 1, characterized in that: One side of the plate A (11) is fixedly connected with an oil cylinder fixing block (37) through multiple sets of screws. An oil cylinder (38) is arranged on one side of the oil cylinder fixing block (37). A U-shaped through groove (39) is opened at the top of the oil cylinder fixing block (37), and one end of the push rod of the oil cylinder (38) passes through the U-shaped through groove (39) and is connected with an oil cylinder connecting block (40).

5. A mold for forming a horn part as described in claim 4, characterized in that: A first installation groove (41) is opened at the top of the plate A (11). Multiple sets of first wear-resistant blocks (42) are arranged at the bottom of the first installation groove (41). One side of a T-shaped seat (43) is connected with the oil cylinder connecting block (40), and the bottom of the T-shaped seat (43) contacts with multiple sets of the first wear-resistant blocks (42).

6. The mold for forming a horn part as described in claim 5, characterized in that: Multiple sets of pressing blocks (49) are arranged on the inner walls on both sides of the first installation groove (41). Steps are arranged on both sides of the T-shaped seat (43). The bottoms of multiple sets of pressing blocks (49) respectively contact with the two sets of steps. A second installation groove (44) is opened at the top of the T-shaped seat (43), and a second wear-resistant block (45) is arranged in the second installation groove (44).

7. The mold for forming a horn part as described in claim 5, characterized in that: One end of the T-shaped seat (43) is provided with an inclined surface. A third installation groove (46) is opened on the inclined surface. A T-shaped block (47) is arranged in the third installation groove (46). A second T-shaped chute (48) is opened at the top of the core-pulling positioning block (31), and the T-shaped block (47) is slidably connected with the second T-shaped chute (48).

8. The mold for forming a horn part as described in claim 1, characterized in that: A plate (11) is provided with a hot runner plate (14) at its top, the hot runner plate (14) is provided with a face plate (15) at its top, and the face plate (15) is provided with a locating ring (16) at its top; the B plate (12) is provided with a supporting plate (17) at its bottom, the supporting plate (17) is provided with two sets of square irons (18) at its bottom, two sets of ejector plates (19) are arranged between the two sets of square irons (18), and the two sets of square irons (18) are connected to the same bottom plate (20) at their bottoms.

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