Quick replacement structure for mold core of injection mold

Abstract

The utility model discloses a quick replacement structure for a mold core of an injection mold, which comprises a mold body, a locking component is arranged on a concave mold plate, a positioning piece and a locking piece are arranged in the locking component, the positioning piece is mounted in a lower mold cavity, and the locking piece is arranged in the middle of the positioning piece and limits the concave mold plate in the lower mold cavity. According to the rapid replacement structure for the mold core of the injection mold, the female mold plate and the positioning piece are directly in butt joint through the cooperation of the positioning piece and the locking piece, positioning operation is achieved, then the locking piece is inserted into the locking hole, the female mold plate is fixed through the locking piece, and the female mold plate is installed on the lower mold plate. According to the female die, rapid operation is achieved, under the condition that the female die plate needs to be replaced for a long time, thread slipping can be avoided, disassembly and assembly are convenient, and rapid replacement can be achieved without other tools.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould technology especially relates to a quick replacement structure of injection mould mould core. BACKGROUND

[0002] With the continuous development of science and technology, science and technology are changing day by day, and electronic products are more and more, and electronic products are upgraded or slightly improved in a few months or half a year, but the overall structure does not change, so only a part of the mould needs to be transformed. The male die plate and the female die plate in the mould are important parts of product forming, and only the structure of the male die plate or the female die plate needs to be replaced. At present, the male die plate and the female die plate are installed by bolts, special tools are needed for disassembly and assembly, and the repeated disassembly and assembly can easily cause thread slippage, and the male die plate and the female die plate are not stable, which affects the product forming work. Therefore, a positioning structure capable of quickly realizing mould core replacement is needed to fix the male die plate or the female die plate. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the defects existing in the prior art, the utility model provides a quick replacement structure of injection mould mould core.

[0004] The technical scheme of the utility model is as follows:

[0005] A quick replacement structure of injection mould mould core, comprising a mould body, a lower die plate is arranged in the mould body, a lower die cavity is formed in the middle of the lower die plate, a female die plate is arranged in the lower die cavity, a locking assembly is arranged on the female die plate, a positioning piece and a locking piece are arranged in the locking assembly, the positioning piece is installed in the lower die cavity, the locking piece is arranged in the middle of the positioning piece and limits the female die plate in the lower die cavity,

[0006] The middle of the positioning piece is provided with an elastic piece and symmetrically arranged locking blocks, the upper end of the locking block is hinged to the middle of the locking piece through a hinge rod, the middle of the positioning piece is provided with a locking hole matched with the locking piece, and the elastic piece pushes the lower end of the locking block into the locking hole to limit the locking piece.

[0007] The locking piece is composed of a rotating part, a locking disc and a locking rod, the locking rod is provided with symmetric locking notches, the locking notches are provided with locking surfaces, and the locking surfaces form an arc-shaped connecting surface.

[0008] In the quick replacement structure of injection mould mould core of the utility model, the positioning piece is further provided with a through chamber and a mounting groove, the mounting groove is communicated with the through chamber, the mounting groove is located at the lower end of the through chamber, and the through chamber is communicated with the locking hole.

[0009] In the injection mold core quick replacement structure, the through chamber is internally provided with a hinge hole matched with the hinge rod, the locking block is arranged in the through chamber, and the lower end of the elastic member is installed in the installation groove through the limiting bolt.

[0010] In the injection mold core quick replacement structure, the elastic member is composed of an installation section and an arc section, and the installation section is installed in the installation groove through the limiting bolt.

[0011] In the injection mold core quick replacement structure, the upper end of the locking block is provided with a limiting surface, and the lower end is provided with a blocking surface, and the blocking surface is in contact with the locking surface.

[0012] In the injection mold core quick replacement structure, the lower end of the positioning member is provided with a threaded portion, and the lower mold cavity is provided with a threaded hole matched with the threaded portion.

[0013] The injection mold core quick replacement structure has the following beneficial effects: the injection mold core quick replacement structure directly connects the concave mold plate and the positioning member through the cooperation of the positioning member and the locking member, realizes positioning operation, then inserts the locking member into the locking hole, realizes the fixation of the concave mold plate through the locking member, and installs it on the lower mold plate. Not only realizes quick operation, but also can avoid thread slippage in the case of long-term need to replace the concave mold plate, and is convenient to disassemble and assemble, and can realize quick replacement without other tools. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the injection mold core quick replacement structure of the utility model;

[0015] Figure 2 It is Figure 1 a structure schematic view of the lower mold plate in the utility model;

[0016] Figure 3 It is Figure 2 an explosion view of the utility model;

[0017] Figure 4 It is Figure 3 a structure schematic view of the locking assembly in the utility model;

[0018] Figure 5 It is Figure 4 a perspective view of the utility model;

[0019] Figure 6 It is Figure 4 an explosion view of the utility model;

[0020] Figure 7 It is Figure 6 a structure schematic view of the positioning member in the utility model;

[0021] Figure 8 for Figure 6 A schematic diagram of the locking mechanism structure;

[0022] Figure 9 for Figure 6 A schematic diagram of the elastic element and locking block structure. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] like Figures 1 to 9 As shown, this utility model's quick-change injection mold core structure includes a mold body 1, a lower template 2 in the mold body 1, a lower mold cavity 3 formed in the middle of the lower template 2, and a concave template 4 in the lower mold cavity 3.

[0025] A locking component 5 is provided on the concave template 4. The locking component 5 is located at the opposite corner of the concave template 4. Only two locking components 5 are needed to limit and install the concave template 4.

[0026] The locking assembly 5 includes a positioning element 6 and a locking element 7. The positioning element 6 is installed in the lower mold cavity 3, and the locking element 7 is located in the middle of the positioning element 6 and limits the concave mold plate 4 in the lower mold cavity 3.

[0027] The lower end of the positioning element 6 is provided with a threaded part 8, and the lower mold cavity 3 is provided with a threaded hole 9 that mates with the threaded part 8. The positioning element 6 is installed in the lower mold cavity 3 by means of threads.

[0028] The locking component 7 consists of a rotating part 10, a locking disc 11, and a locking rod 12. The locking rod 12 has symmetrical locking recesses 13, and a locking surface 14 is provided at the locking recesses 13. An arc-shaped connecting surface 15 is formed between the locking surfaces 14. The arc-shaped connecting surface 15 can guide the locking block 16.

[0029] The concave template 4 is provided with a fixing hole 17 and a stepped hole 18. The positioning element 6 is set in the fixing hole 17, and the locking plate 11 is set in the stepped hole 18. The locking plate 11 limits the concave template 4.

[0030] The positioning component 6 is also provided with a through chamber 19 and a mounting groove 20. The mounting groove 20 is connected to the through chamber 19 and is located at the lower end of the through chamber 19. The through chamber 19 is connected to the locking hole 21.

[0031] The through chamber 19 is provided with a hinge hole 23 that mates with the hinge rod 22. The locking block 16 is disposed in the through chamber 19. The lower end of the elastic element 24 is installed in the mounting groove 20 through the limit bolt 25.

[0032] The locking recess 13 is provided with a first slope 26 and a second slope 27, and a third slope 28 is arranged between the first slope 26 and the second slope 27.

[0033] The elastic member 24 and the locking blocks 16 symmetrically arranged in the middle of the positioning member 6, the upper end of the locking block 16 is hinged to the middle of the locking member 7 through the hinge rod 22, the middle of the positioning member 6 is provided with a locking hole 21 matched with the locking member 7, and the lower end of the locking block 16 is pushed into the locking hole 21 by the elastic member 24 to limit the position in cooperation with the locking member 7.

[0034] The elastic member 24 is composed of a mounting section 32 and an arc section 33, and the mounting section 32 is mounted in the mounting groove 20 through the limiting bolt 25. The upper end of the locking block 16 is provided with a limiting surface 34, and the lower end is provided with a blocking surface 35 in contact with the locking surface 14. After the lower end of the locking block 16 is pushed by the elastic member 24, the limiting surface 34 at the upper end is kept in contact with the upper wall surface 191 in the through chamber 19 to limit the rotation angle of the locking block 16.

[0035] The locking block 16 is provided with a limiting opening 36, and the upper end of the arc section 33 is arranged in the limiting opening 36. The lower end of the locking block 16 is pushed into the locking hole 21 by the elastic force, so that the blocking surface 35 blocks the locking surface 14.

[0036] When the locking member 7 is inserted into the locking hole 21, the locking block 16 can be pushed by the locking rod 12 first, and the elastic member 24 is deformed under stress, and then when the locking block 16 reaches the locking recess 13, the locking block 16 enters the locking recess 13 under the elastic force of the elastic member 24, so that the locking member 7 is limited in the locking hole 21. When it is necessary to remove the die plate 4 for replacement, only the rotating part 10 is rotated by 90°, so that the arc-shaped connecting surface 15 pushes the locking block 16 to deform the elastic member 24, so that the locking block 16 enters the through chamber 19, and the locking member 7 can be taken out, and then the die plate 4 is taken out from the lower die cavity 3 for replacement.

[0037] The above only describes the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rapid core change structure for an injection mold core, comprising a mold body, characterized in that, The mould is provided with a lower mould plate, a lower mould cavity is formed in the middle of the lower mould plate, a female mould plate is arranged in the lower mould cavity, a locking assembly is arranged on the female mould plate, a positioning member and a locking member are arranged in the locking assembly, the positioning member is arranged in the lower mould cavity, the locking member is arranged in the middle of the positioning member and limits the female mould plate in the lower mould cavity, an elastic member and symmetrically arranged locking blocks are arranged in the middle of the positioning member, the upper ends of the locking blocks are hinged to the middle of the locking member through a hinge rod, a locking hole matched with the locking member is arranged in the middle of the positioning member, and the lower end of the locking block is pushed into the locking hole by the elastic member to limit the locking member.

2. The rapid mold core replacement structure of the injection mold according to claim 1, characterized by, The locking member is composed of a rotating part, a locking disc and a locking rod, symmetrically arranged locking notches are arranged on the locking rod, locking surfaces are arranged at the locking notches, and arc-shaped connecting surfaces are formed between the locking surfaces.

3. The rapid mold core replacement structure of claim 2, wherein The positioning member is further provided with a through chamber and a mounting groove, the mounting groove is communicated with the through chamber, the mounting groove is arranged at the lower end of the through chamber, and the through chamber is communicated with the locking hole.

4. The rapid mold core replacement structure of claim 3, wherein The through chamber is provided with a hinge hole matched with the hinge rod, the locking block is arranged in the through chamber, and the lower end of the elastic member is arranged in the mounting groove through a limiting bolt.

5. The rapid mold core replacement structure of claim 4, wherein The elastic member is composed of a mounting section and an arc-shaped section, and the mounting section is arranged in the mounting groove through a limiting bolt.

6. The rapid mold core replacement structure of claim 4, wherein The upper end of the locking block is provided with a limiting surface, and the lower end is provided with a blocking surface, and the blocking surface is in contact with the locking surface.

7. The rapid mold core replacement structure of claim 1, wherein The lower end of the positioning member is provided with a threaded part, and the lower mould cavity is provided with a threaded hole matched with the threaded part.

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