Injection mold with replaceable mold

Abstract

The utility model discloses an injection mold with a replaceable mold, and relates to the field of injection molds, the injection mold comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a workbench, the upper end of the workbench is fixedly connected with a moving assembly, and the upper end of the moving assembly and the upper end of the workbench are fixedly connected with mounting assemblies; and the upper end of the mounting assembly at the upper end of the moving assembly is fixedly connected with a movable mold. By adopting the structure, the two-way screw is rotated to drive the threaded piece in threaded connection with the two-way screw to slide in the mounting groove, and the clamping rod can be driven to be inserted into the clamping hole in the surface of the insertion block under the sliding of the threaded piece, so that a fixed mold and a movable mold can be mounted after the clamping rod and the clamping hole are clamped; and therefore, the fixed mold and the movable mold can be conveniently mounted during use, and the fixed mold and the movable mold are mounted through clamping placement, so that the mold is more convenient to dismount.

Description

Technical Field

[0001] This utility model belongs to the field of injection molds, and specifically relates to an injection mold with replaceable mold. Background Technology

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. The injection molding process involves injecting hot plastic material between the upper and lower molds for cooling, forming a specific shape and completing the molding process. This method is highly efficient. However, most existing injection molds have simple structures, are difficult to replace, and are only suitable for one type of product. When processing other products, replacement is not quick enough. In addition, most injection molds rely on ejector pins for demolding, and cooling structures cannot be installed at the ejector pin locations. This can easily lead to incomplete cooling at the ejector pin locations, resulting in deformation during the ejection action.

[0003] Chinese Patent No. CN220946484U discloses a homogenizing injection mold, including an injection mold 1 and an injection mold 2, which are hinged together. Each injection mold 1 and injection mold 2 has a mold cavity inside, and a cooling channel connected to the mold cavity is located in the middle of each mold. Assembly and fixing components are provided on both sides of the outer wall of each mold 1 and injection mold 2. Before adding the injection liquid to the hopper, a negative pressure pump is used to extract all the air from the injection tube, creating a negative pressure state. This ensures that when the injection liquid flows into the mold cavity, air bubbles are avoided in the finished product, preventing quality issues. The user uses a feeding motor, which drives the spiral feeding blades on the conveying rod to rotate, facilitating the injection of the injection liquid into the mold cavity. This improves the pre-homogenization ability of the injection liquid, achieving a homogenization effect.

[0004] As can be seen from the above structure, by setting the insert, which consists of a hollow strip, a folded recessed insert, a clamping strip, a pin body one, and a pin body two, it is embedded and slidably assembled with the insert groove, which plays the role of assembling injection mold one and injection mold two. However, when producing products of different specifications, different molds need to be changed. The above-mentioned injection mold one and injection mold two are inconvenient to change during use, which leads to a reduction in the efficiency of product production. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an injection mold with replaceable mold to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A replaceable injection mold includes a base plate, a worktable fixedly connected to the upper end of the base plate, a movable component fixedly connected to the upper end of the worktable, and mounting components fixedly connected to the upper ends of both the movable component and the worktable. A movable mold is fixedly connected to the upper end of the mounting component at the upper end of the movable component, and a fixed mold is fixedly connected to the upper end of the mounting component at the upper end of the worktable. Demolding components are provided on the back of both the fixed mold and the movable mold. The mounting components include mounting seats disposed at the upper ends of the movable component and the worktable. A slot is provided at the upper end of the mounting seat. Both the mounting seat and the slot have mounting grooves inside. A bidirectional screw is rotatably connected inside the mounting groove. Threaded parts are threaded to both sides of the outer surface of the bidirectional screw. A locking rod is fixedly connected to the inner side of the threaded parts. Insert blocks are fixedly connected to the lower ends of both the fixed mold and the movable mold. Locking holes are provided on the surface of each insert block.

[0008] As a preferred technical solution, the moving component includes a moving groove disposed on the upper end of the worktable, a moving screw rotatably connected inside the moving groove, and moving parts threadedly connected to the outer surface of the moving screw. The upper end of the moving parts is fixedly connected to the mounting component, and a moving motor is fixedly connected to the outer side of the worktable. The output shaft of the moving motor is fixedly connected to the moving screw.

[0009] As a preferred technical solution, the movable component and the movable groove are slidably inserted into each other, and guide rods are fixedly connected to both sides of the inner side of the movable groove. Guide holes are opened on the outer surface of the movable component, and the guide rods and guide holes are slidably inserted into each other.

[0010] As a preferred technical solution, the other end of each bidirectional screw is fixedly connected to a turntable, the outer ring of a bearing is fixedly connected to the outer side of the turntable, the inner ring of the bearing is fixedly connected to a handle, and a protective pad is provided on the surface of the handle.

[0011] As a preferred technical solution, the fixed mold is fixedly connected to both sides of a first fixed plate, and the movable mold is fixedly connected to both sides of a second fixed plate. A limit rod is fixedly connected to the inner side of the first fixed plate, and a limit hole is formed on the surface of the second fixed plate. The limit hole and the limit rod are slidably inserted into each other.

[0012] As a preferred technical solution, the other end of the limiting rod is threadedly connected to a limiting disk, and the other end of the limiting rod is provided with a fixing screw hole. A fixing screw is fixedly connected to the inner side of the limiting disk, and the fixing screw and the fixing screw hole are threadedly connected to each other.

[0013] As a preferred technical solution, the demolding assembly includes an electric push rod disposed on the back of the fixed mold and the movable mold. The other end of the electric push rod is fixedly connected to a connecting plate, and a demolding rod is fixedly connected to the inner side of the connecting plate. The demolding rod is inserted and connected to the fixed mold and the movable mold through each other.

[0014] In summary, the present invention has the following main advantages:

[0015] This utility model, through its installation components, allows for the installation of a fixed mold and a movable mold. During use, the lower end of the fixed mold and the movable mold's insert blocks are inserted into the slots. After insertion, rotating the bidirectional screw drives the threaded component connected to it to slide within the installation groove. This sliding of the threaded component causes the locking rod to insert into the locking hole on the surface of the insert block. Thus, once the locking rod and locking hole are engaged, the fixed mold and the movable mold can be installed. This facilitates convenient installation of the fixed mold and the movable mold during use, and the locking mechanism also makes disassembly easier. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation component of this utility model;

[0018] Figure 3 This is a schematic diagram of the demolding assembly of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure viewed from below.

[0020] Reference numerals: 1. Base plate; 2. Worktable; 3. Moving assembly; 31. Moving slot; 32. Moving screw; 33. Moving part; 34. Moving motor; 4. Mounting assembly; 41. Mounting base; 42. Slot; 43. Mounting slot; 44. Bidirectional screw; 45. Threaded part; 46. Locking rod; 47. Insert block; 48. Locking hole; 5. Fixed mold; 6. Movable mold; 7. Demolding assembly; 71. Electric push rod; 72. Connecting plate; 73. Demolding rod; 8. Turntable; 9. Bearing; 10. Handle; 11. Guide rod; 12. Guide hole; 13. Limiting rod; 14. Limiting hole; 15. Limiting plate; 16. Fixing screw hole; 17. Fixing screw; 18. First fixing plate; 19. Second fixing plate. Detailed Implementation

[0021] Example

[0022] refer to Figures 1 to 4This embodiment of a replaceable injection mold includes a base plate 1, a worktable 2 fixedly connected to the upper end of the base plate 1, a movable component 3 fixedly connected to the upper end of the worktable 2, and mounting components 4 fixedly connected to the upper ends of both the movable component 3 and the worktable 2. A movable mold 6 is fixedly connected to the upper end of the mounting component 4 at the upper end of the movable component 3, and a fixed mold 5 is fixedly connected to the upper end of the mounting component 4 at the upper end of the worktable 2. Demolding components 7 are provided on the back of the fixed mold 5 and the movable mold 6. The mounting component 4 includes a mounting base 41 provided at the upper end of the movable component 3 and the worktable 2. A slot 42 is provided at the upper end of the mounting base 41. Mounting grooves 43 are provided inside both the mounting base 41 and the slot 42. A bidirectional screw 44 is rotatably connected inside the mounting groove 43. Threaded parts 45 are threadedly connected to both sides of the outer surface of the bidirectional screw 44. A locking rod 46 is fixedly connected to the inner side of the threaded part 45. Insert blocks 47 are fixedly connected to the lower ends of both the fixed mold 5 and the movable mold 6. Locking holes 48 are provided on the surface of each insert block 47.

[0023] refer to Figure 1 and Figure 2 The movable component 3 includes a movable groove 31 located on the upper end of the worktable 2. A movable screw 32 is rotatably connected inside the movable groove 31. Movable parts 33 are threadedly connected to the outer surface of the movable screw 32. The upper end of the movable parts 33 is fixedly connected to the mounting component 4. A movable motor 34 is fixedly connected to the outer side of the worktable 2. The output shaft of the movable motor 34 is fixedly connected to the movable screw 32. When the mold is closed, the movable motor 34 is started to drive the movable screw 32 to rotate. The rotation of the movable screw 32 drives the movable parts 33 threadedly connected to it to move. The movement of the movable parts 33 can drive the mounting component 4 and the movable mold 6 to move closer together, so that the mold can be closed when the movable mold 6 moves closer together.

[0024] refer to Figure 2 The movable part 33 and the movable groove 31 are slidably inserted into each other. Guide rods 11 are fixedly connected to both sides of the inside of the movable groove 31. Guide holes 12 are opened on the outer surface of the movable part 33. The guide rods 11 and the guide holes 12 are slidably inserted into each other. The guide holes 12 and the guide rods 11 can limit the movable part 33 during use, so that the movable part 33 is more stable when sliding inside the movable groove 31.

[0025] refer to Figure 1The other end of the bidirectional screw 44 is fixedly connected to a turntable 8. The outer ring of the bearing 9 is fixedly connected to the outer side of the turntable 8, and the inner ring of the bearing 9 is fixedly connected to a handle 10. The surface of the handle 10 is provided with a protective pad. By holding the handle 10, the turntable 8 can be rotated. The rotation of the turntable 8 will cause the bidirectional screw 44 fixedly connected to it to rotate. Thus, with the handle 10 and the turntable 8, the bidirectional screw 44 can be easily rotated.

[0026] refer to Figure 3 The fixed mold 5 is fixedly connected to both sides by a first fixed plate 18, and the movable mold 6 is fixedly connected to both sides by a second fixed plate 19. The inner side of the first fixed plate 18 is fixedly connected to a limit rod 13, and the surface of the second fixed plate 19 is provided with a limit hole 14. The limit hole 14 and the limit rod 13 are slidably inserted into each other. The limit rod 13 and the limit hole 14 are provided to limit the fixed mold 5 and the movable mold 6 during use, so that the fixed mold 5 and the movable mold 6 are more accurately closed and deviations are avoided.

[0027] refer to Figure 3 The other end of the limiting rod 13 is threadedly connected to the limiting plate 15. The other end of the limiting rod 13 is provided with a fixing screw hole 16. A fixing screw 17 is fixedly connected to the inner side of the limiting plate 15. The fixing screw 17 and the fixing screw hole 16 are threadedly connected to each other. The limiting plate 15 can prevent the limiting rod 13 from disengaging from the limiting hole 14 due to the long movement distance of the movable mold 6. The threaded installation of the limiting plate 15 makes it more convenient to install and remove the limiting plate 15.

[0028] refer to Figure 1 . Figure 3 and Figure 4 The demolding assembly 7 includes an electric push rod 71 disposed on the back of the fixed mold 5 and the movable mold 6. The other end of the electric push rod 71 is fixedly connected to a connecting plate 72. A demolding rod 73 is fixedly connected to the inner side of the connecting plate 72. The demolding rod 73 is inserted and connected to the fixed mold 5 and the movable mold 6. When the mold is opened after injection molding, the electric push rod 71 is activated to drive the connecting plate 72 to move inward. Under the movement of the connecting plate 72, the demolding rod 73 moves into the interior of the fixed mold 5 and the movable mold 6, so that the injection molded product can be ejected under the action of the demolding rod 73, thus making it convenient to demold during use.

[0029] Operating principle and advantages: In use, the device is installed in a suitable position, and then the fixed mold 5 and the movable mold 6 are installed. The insert blocks 47 at the lower ends of the fixed mold 5 and the movable mold 6 are inserted into the slots 42. After insertion, rotating the bidirectional screw 44 drives the threaded part 45, which is threaded to it, to slide inside the mounting groove 43. The sliding of the threaded part 45 drives the locking rod 46 to insert into the locking hole 48 on the surface of the insert block 47. Thus, after the locking rod 46 engages with the locking hole 48, the fixed mold 5 and the movable mold 6 can be installed. After installation, injection molding can be performed. During mold closing, the moving motor 34 is started to drive the moving screw 32 to rotate. Rotation of component 32 drives the moving part 33, which is threadedly connected to it, to move. The movement of component 33 causes the mounting assembly 4 and the movable mold 6 to move closer together, thus achieving a mold closing effect when the movable mold 6 moves closer together. After the mold closing is completed, the injection molding liquid is delivered into the fixed mold 5 and the movable mold 6 through the injection molding equipment. Then, the injection time is waited for. After the injection is completed, the mold opening effect can be achieved through the moving assembly 3. When the mold is opened, the connecting plate 72 is moved inward by the electric push rod 71. The movement of the connecting plate 72 causes the demolding rod 73 to move into the fixed mold 5 and the movable mold 6, so that the injection molded product can be ejected under the action of the demolding rod 73, thus making it convenient to demold during use.

Claims

1. A replaceable injection mold, characterized in that: The device includes a base plate, a worktable fixedly connected to the upper end of the base plate, a movable component fixedly connected to the upper end of the worktable, and mounting components fixedly connected to the upper ends of both the movable component and the worktable. A movable mold is fixedly connected to the upper end of the mounting component on the upper end of the movable component, and a fixed mold is fixedly connected to the upper end of the mounting component on the upper end of the worktable. Demolding components are provided on the back of both the fixed mold and the movable mold. The mounting component includes a mounting base provided on the upper end of the movable component and the worktable. A slot is provided at the upper end of the mounting base. Both the mounting base and the slot have mounting grooves inside. A bidirectional screw is rotatably connected inside the mounting groove. Threaded parts are threaded to both sides of the outer surface of the bidirectional screw. A locking rod is fixedly connected to the inner side of the threaded parts. Insert blocks are fixedly connected to the lower ends of both the fixed mold and the movable mold. Locking holes are provided on the surface of each insert block.

2. The injection mold with replaceable mold according to claim 1, characterized in that: The moving component includes a moving groove disposed on the upper end of the worktable, a moving screw rotatably connected inside the moving groove, and moving parts threadedly connected to the outer surface of the moving screw. The upper end of the moving parts is fixedly connected to the mounting component, and a moving motor is fixedly connected to the outer side of the worktable. The output shaft of the moving motor is fixedly connected to the moving screw.

3. The injection mold with replaceable mold according to claim 2, characterized in that: The movable component and the movable slot are slidably inserted into each other. Guide rods are fixedly connected to both sides of the interior of the movable slot. Guide holes are opened on the outer surface of the movable component. The guide rods and guide holes are slidably inserted into each other.

4. The injection mold with replaceable mold according to claim 1, characterized in that: The other end of each bidirectional screw is fixedly connected to a turntable, the outer ring of a bearing is fixedly connected to the outer side of the turntable, and a handle is fixedly connected to the inner ring of the bearing. A protective pad is provided on the surface of the handle.

5. The injection mold with replaceable mold according to claim 1, characterized in that: The fixed mold is fixedly connected to two sides by a first fixed plate, and the movable mold is fixedly connected to two sides by a second fixed plate. A limit rod is fixedly connected to the inner side of the first fixed plate, and a limit hole is opened on the surface of the second fixed plate. The limit hole and the limit rod are slidably inserted into each other.

6. The injection mold with replaceable mold according to claim 5, characterized in that: The other end of the limiting rod is threadedly connected to the limiting plate, and the other end of the limiting rod has a fixing screw hole. A fixing screw is fixedly connected to the inner side of the limiting plate, and the fixing screw and the fixing screw hole are threadedly connected to each other.

7. The injection mold with replaceable mold according to claim 1, characterized in that: The demolding assembly includes an electric push rod disposed on the back of the fixed mold and the movable mold. The other end of the electric push rod is fixedly connected to a connecting plate. A demolding rod is fixedly connected to the inner side of the connecting plate. The demolding rod is inserted and connected to the fixed mold and the movable mold through each other.

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