An injection mold

Abstract

The present application relates to the technical field of mold processing, and in particular to an injection mold. The injection mold includes an upper mold plate, an upper mold core, and a lower mold plate; a first receiving groove for accommodating the upper mold core is provided on the upper mold plate; the upper mold plate includes a substrate and a printing plate; a second receiving groove for accommodating the printing plate is provided on the upper mold plate, and the printing plate is detachably connected to the substrate; a molding groove is provided on the lower mold plate; the substrate is covered on the molding groove, and the printing plate is arranged opposite to the molding groove. The printing plate can be disassembled and replaced, and multiple printing plates can be provided, and different text and graphic logos are provided on different printing plates. Therefore, only the printing plate needs to be replaced to change the logo on the injection molded product, which can effectively reduce the production cost caused by the mold. And replacing only the printing plate has a higher replacement efficiency than replacing the entire injection mold, which helps to improve production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of mold processing, and in particular to an injection mold. Background Art

[0002] During the injection molding of products, a groove-shaped or raised printing portion is usually provided on the inner wall of the mold cavity to facilitate the formation of text, patterns, etc. on the surface of the product after the product is injection molded, generally product model, text or pattern identification, etc.

[0003] Since the printing part is processed as a whole with the injection mold when the injection mold is opened, when you want to change the logo on the product, you can only replace the mold as a whole, which leads to a significant increase in production costs and a long replacement time for the entire mold, which is not conducive to improving production efficiency. Utility Model Content

[0004] The present application provides an injection mold, which has the advantages of being able to quickly change styles, save costs, and improve effects.

[0005] The injection mold provided in this application adopts the following technical solution:

[0006] An injection mold comprises an upper mold plate, an upper mold core and a lower mold plate; the upper mold plate is provided with a first receiving groove for receiving the upper mold core;

[0007] The upper template includes a base plate and a printing plate; the base plate is provided with a second receiving groove for receiving the printing plate, and the printing plate is detachably connected to the base plate;

[0008] The lower template is provided with a forming groove; the base plate is covered on the forming groove, and the printing plate is arranged opposite to the forming groove.

[0009] By adopting the above technical solution, recessed or raised text and graphics can be set on the side wall of the printing plate facing the molding groove. Therefore, during the injection molding operation, the product is molded in the molding groove, and at the same time, text, graphics and other logos are molded on the product through the printing plate. The printing plate can be removed from the base plate and replaced, and different text logos can be set on different printing plates, thereby realizing the replacement of different logos of the same product.

[0010] Preferably, the second accommodating groove is arranged through the base plate; a limiting component for limiting the position of the printing plate is detachably connected above the base plate.

[0011] By adopting the above technical solution, the through-set second accommodating groove makes it easier to take and put the printing board, thereby facilitating the replacement of the printing board; the limiting component can limit and fix the printing board, thereby ensuring the stability of the printing board during injection molding.

[0012] Preferably, the limit assembly includes a limit plate; a mounting groove is provided on the base plate; one end of the limit plate is located in the mounting groove; a limit groove is provided on the printing plate, and the other end of the limit plate extends into the limit groove; the depth of the mounting groove and the limit groove is the same as the height of the limit plate.

[0013] By adopting the above technical solution, the depth of the installation groove and the limit groove is the same as the height of the limit plate, so that the end surface of the limit plate can be flush with the upper end of the substrate and the printing board, thereby avoiding the instability of the substrate in the first accommodating groove caused by the protrusion of the limit plate, thereby indirectly improving the stability of the printing board.

[0014] Preferably, the upper mold core also includes a pressure plate; the pressure plate is located above the base plate; the pressure plate is bolted to the upper mold plate; the base plate is bolted to the pressure plate; and the upper end of the base plate and the upper end of the printing plate are both in contact with the pressure plate.

[0015] By adopting the above technical solution, during the injection molding process, since the printing plate and the base plate will be subjected to the pressure of the molten plastic, and both the base plate and the printing plate are in contact with the pressure plate, this pressure can be applied to the pressure plate, thereby preventing the injection pressure from acting on the printing plate and causing the printing plate to be unstable, thereby ensuring the normal operation of the injection mold.

[0016] Preferably, the limiting assembly further comprises a limiting flange, the limiting flange is arranged in the limiting groove, and the lower end of the limiting flange is flush with the lower end of the printing plate.

[0017] By adopting the above technical solution, the limiting flange can limit the printing plate downward, and the lower end of the printing plate is flush with the lower end of the limiting flange, which can ensure the quality of the injection molded product.

[0018] Preferably, it further comprises a mold locking assembly; the mold locking assembly comprises a locking plate, a first locking bolt and a second locking bolt; the first locking bolt and the second locking bolt are both disposed on the locking plate;

[0019] The first locking bolt is connected to the upper template, and the second locking bolt is connected to the lower template.

[0020] By adopting the above technical solution, the first locking bolt is threadedly connected to the upper mold plate, and the second locking bolt is threadedly connected to the lower mold plate, so the upper mold plate and the lower mold plate can be connected through the locking plate. On the one hand, the upper mold plate and the lower mold plate can be fixed when the injection mold is stored, which can reduce the probability of loss of internal parts of the injection mold; on the other hand, it can provide bearing capacity during injection molding, so that the upper and lower mold plates can withstand higher injection pressure.

[0021] Preferably, the upper template side wall is provided with a third receiving groove; the lower template side wall is provided with a fourth receiving groove; the position of the third receiving groove corresponds to the position of the fourth receiving groove; one end of the lock plate is located in the third receiving groove, and the other end is located in the fourth receiving groove;

[0022] The depth of the third accommodating groove and the fourth accommodating groove is not less than the thickness of the locking plate; the total length of the third accommodating groove and the fourth accommodating groove is greater than the length of the locking plate.

[0023] By adopting the above technical solution, the mold clamping assembly is completely located in the third receiving groove and the fourth receiving groove, so as to avoid the mold clamping assembly protruding outward and being easily damaged by external collision. When the locking plate is placed in the third receiving groove and the fourth receiving groove, a gap is left between the end of the locking plate and the inner wall of the third receiving groove or the fourth receiving groove, so that the staff can take the locking plate from the mold clamping groove.

[0024] Preferably, the mold locking assembly further comprises two positioning blocks, which are respectively arranged on the upper mold plate and the lower mold plate; one of the positioning blocks is provided with a plug, and the other positioning block is provided with a slot for plugging and cooperating with the clamping head.

[0025] By adopting the above technical solution, the upper die and the lower die can be quickly positioned through the cooperation of the clamping head and the clamping slot.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The printing plate can be disassembled and replaced. Therefore, multiple printing plates can be set up, and different text and graphic logos can be set on different printing plates. Therefore, only the printing plate needs to be replaced to change the logo on the injection molded product, which can effectively reduce the production cost caused by the mold. And replacing only the printing plate has a higher replacement efficiency than replacing the entire injection mold, which helps to improve production efficiency.

[0028] 2. The through-set second receiving groove makes it easier to take and put the printing board, thereby facilitating the replacement of the printing board; the limiting component can limit and fix the printing board, thereby ensuring the stability of the printing board during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the injection mold in the embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the exploded structure of the injection mold in the embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the exploded structure of the basic and printing plates in the embodiment of the present application;

[0032] Figure 4 yes Figure 1 A partial enlarged schematic diagram of part A.

[0033] Markings in the accompanying drawings: 1. upper template; 11. third accommodating groove; 2. upper mold core; 21. pressure plate; 22. base plate; 221. second accommodating groove; 222. mounting groove; 23. printing plate; 231. limit groove; 3. limit assembly; 31. limit plate; 32. limit flange; 4. lower template; 41. molding groove; 42. fourth accommodating groove; 5. locking mold assembly; 51. locking plate; 52. first locking bolt; 53. second locking bolt; 54. positioning block; 541. clamping head; 542. clamping groove. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The present application embodiment discloses an injection mold. Figure 1 and Figure 2 The injection mold includes an upper mold plate 1, an upper mold core 2, a lower mold plate 4 and a clamping assembly 5; a first receiving groove is provided on the upper mold plate 1. The upper mold core 2 includes a pressure plate 21 and a base plate 22 arranged in the first receiving groove. The pressure plate 21 is located above the base plate 22 and is bolted to the upper mold plate 1. The base plate 22 is also bolted to the pressure plate 21. A second receiving groove 221 is provided on the base plate 22, and the second receiving groove 221 is arranged through the base plate 22. The upper mold core 2 also includes a printing plate 23 arranged in the second receiving groove 221, and the upper ends of the base plate 22 and the printing plate 23 are both in contact with the pressure plate 21. A molding groove 41 is provided on the lower mold plate 4; the base plate 22 covers the molding groove 41, and the printing plate 23 is arranged opposite to the molding groove 41.

[0036] The clamping assembly 5 is used to connect the upper mold plate 1 and the lower mold plate 4 and fix the upper mold plate 1 and the lower mold plate 4 relatively. The side wall of the printing plate 23 facing the molding groove 41 can be provided with recessed or raised text and graphics. Therefore, during the injection molding operation, the product is molded in the molding groove 41, and at the same time, text, graphics and other logos are molded on the product through the printing plate 23. The printing plate 23 can be removed from the base plate 22 and replaced, and different text logos can be set on different printing plates 23, so that different logos of the same product can be replaced.

[0037] Reference Figure 2 and Figure 3The substrate 22 is provided with a limit assembly 3, which includes a limit plate 31 disposed at the upper end of the substrate 22. The upper end of the substrate 22 is provided with a mounting groove 222. One end of the limit plate 31 is located in the mounting groove 222, and the other end extends to the inside of the second receiving groove 221. The printing plate 23 is provided with a limit groove 231 that cooperates with the limit plate 31. The depths of the mounting groove 222 and the limit groove 231 are the same as the height of the limit plate 31. The height of the limit plate 31 can also be made smaller than the depths of the mounting groove 222 and the limit groove 231, so that the end surface of the limit plate 31 is flush with the upper ends of the substrate 22 and the printing plate 23.

[0038] The limit plate 31 can limit the printing plate 23 upward. In the present application, there is no need to limit the printing plate 23 downward. A transition fit can be adopted between the printing plate 23 and the second receiving groove 221, so that the printing plate 23 and the base can be relatively fixed. In addition, during product injection molding, the printing plate 23 will expand due to the high heat of the melt plastic, further improving the stability of the connection between the printing plate 23 and the base 22.

[0039] As a preferred implementation of the embodiment of the present application, a limiting flange 32 can be set at the bottom of the side wall of the second accommodating groove 221. Correspondingly, a groove is opened at the periphery of the bottom wall of the printing board 23, and the downward limiting of the printing board 23 is achieved by the cooperation between the limiting flange 32 and the groove.

[0040] Reference Figure 2 and Figure 3 The upper mold plate 1 has a third receiving groove 11 on its side wall, and the lower mold plate 4 has a fourth receiving groove 42 on its side wall, and the position of the third receiving groove 11 corresponds to the position of the fourth receiving groove 42. The third receiving groove 11 and the fourth receiving groove 42 form a clamping groove, and the clamping assembly 5 is arranged in the clamping groove.

[0041] Reference Figure 4 The locking assembly includes a locking plate 51, a first locking bolt 52, and a second locking bolt 53. One end of the locking plate 51 is located in the third receiving groove 11, and the other end is located in the fourth receiving groove 42. The first locking bolt 52 and the second locking bolt 53 are both penetrated on the locking plate 51, and the first locking bolt 52 is threadedly connected to the upper template 1, and the second locking bolt 53 is threadedly connected to the lower template 4, so the upper template 1 and the lower template 4 can be connected through the locking plate 51.

[0042] The depth of the mold locking groove is not less than the thickness of the locking plate 51, and the mold locking assembly 5 is completely located in the mold locking groove. The length of the mold locking groove is greater than the length of the locking plate 51, so that the staff can take the locking plate 51 from the mold locking groove for easy operation.

[0043] The clamping assembly 5 also includes two positioning blocks 54, which are respectively arranged on the upper mold plate 1 and the lower mold plate 4; one of the positioning blocks 54 is provided with a clamping head 541, and the other positioning block 54 is provided with a clamping groove 542 that cooperates with the clamping head 541. Through the cooperation between the clamping head 541 and the clamping groove 542, the upper mold and the lower mold can be quickly positioned.

[0044] The implementation principle of the injection mold in the embodiment of the present application is: when processing an injection molded product, if it is necessary to replace the text or graphic logo on the product, only the printing plate 23 needs to be replaced.

[0045] The staff can separate the upper mold plate 1 from the lower mold plate 4, take out the upper mold core 2, separate the base plate 22 from the carrier plate, and then take out and replace the text printing plate 23. Therefore, the text logo on the injection molded product can be changed without replacing the entire mold, effectively reducing the production cost caused by the injection mold.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An injection mold, characterized in that: It comprises an upper mold plate (1), an upper mold core (2) and a lower mold plate (4); the upper mold plate (1) is provided with a first receiving groove for receiving the upper mold core (2); The upper template (1) comprises a base plate (22) and a printing plate (23); a second receiving groove (221) for receiving the printing plate (23) is provided on the base plate (22); the printing plate (23) is detachably connected to the base plate (22); The lower template (4) is provided with a molding groove (41); the base plate (22) is covered on the molding groove (41), and the printing plate (23) is arranged opposite to the molding groove (41).

2. The injection mold according to claim 1, characterized in that: The second accommodating groove (221) is arranged to penetrate the base plate (22); a limiting component (3) for limiting the position of the printing plate (23) is detachably connected above the base plate (22).

3. The injection mold according to claim 2, characterized in that: The limiting assembly (3) comprises a limiting plate (31); a mounting groove (222) is provided on the base plate (22), and one end of the limiting plate (31) is located in the mounting groove (222); a limiting groove (231) is provided on the printing plate (23), and the other end of the limiting plate (31) extends into the limiting groove (231); the depths of the mounting groove (222) and the limiting groove (231) are the same as the height of the limiting plate (31).

4. The injection mold according to claim 2, characterized in that: The upper mold core (2) further comprises a pressure plate (21); the pressure plate (21) is located above the base plate (22); the pressure plate (21) is bolted to the upper mold plate (1); the base plate (22) is bolted to the pressure plate (21); and the upper end of the base plate (22) and the upper end of the printing plate (23) are both in contact with the pressure plate (21).

5. The injection mold according to claim 2, characterized in that: The limiting assembly (3) further comprises a limiting flange (32), wherein the limiting flange (32) is arranged in the limiting groove (231), and the lower end of the limiting flange (32) is flush with the lower end of the printing plate (23).

6. The injection mold according to claim 5, characterized in that: The mold locking assembly (5) further comprises: the mold locking assembly (5) comprises a locking plate (51), a first locking bolt (52) and a second locking bolt (53); the first locking bolt (52) and the second locking bolt (53) are both passed through the locking plate (51); The first locking bolt (52) is connected to the upper template (1), and the second locking bolt (53) is connected to the lower template (4).

7. The injection mold according to claim 6, characterized in that: The side wall of the upper template (1) is provided with a third receiving groove (11); the side wall of the lower template (4) is provided with a fourth receiving groove (42); the position of the third receiving groove (11) corresponds to the position of the fourth receiving groove (42); one end of the locking plate (51) is located in the third receiving groove (11), and the other end is located in the fourth receiving groove (42); The depth of the third accommodating groove (11) and the fourth accommodating groove (42) is not less than the thickness of the locking plate (51); and the total length of the third accommodating groove (11) and the fourth accommodating groove (42) is greater than the length of the locking plate (51).

8. The injection mold according to claim 6, characterized in that: The mold locking assembly (5) further comprises two positioning blocks (54), which are respectively arranged on the upper mold plate (1) and the lower mold plate (4); one of the positioning blocks (54) is provided with a clamping head (541), and the other positioning block (54) is provided with a clamping slot (542) that cooperates with the clamping head (541).

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