Charging box injection mold

Abstract

The utility model discloses an injection mold for a charging box. The injection mold aims at solving the technical problem that an injection mold in the prior art cannot directly form a hole groove in a lower shell of the charging box during injection molding. The injection mold comprises a lower mold and an upper mold, the upper die is movably connected right above the lower die; the lower die comprises an outer frame, a female die, limiting columns, an ejection block, a first movable assembly, a second movable assembly and an ejection plate, the outer frame is movably connected to the position under the upper die, the female die is connected to the inner side of the outer frame in a sleeving mode, the four sets of limiting columns are fixedly connected to the top of the outer frame, and the ejection block is slidably connected to the bottom of the inner side of the female die; compared with the prior art, the injection mold has the advantages that through the design of the outer frame, hole grooves can be formed in the positions where the first moving block and the second moving block are located, follow-up trepanning machining is not needed, and practicability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and specifically relates to a charging box injection mold. Background Technology

[0002] The charging case of a medical hearing aid consists of an upper shell and a lower shell, which are usually formed by injection molding. During injection molding, injection molds are used. Injection molds mainly include a concave mold composed of a concave mold assembly base plate and a concave mold component, and a convex mold composed of a convex mold assembly base plate and a convex mold component. The convex and concave molds assist each other in forming, which can give plastic products a complete shape and precise dimensions.

[0003] The lower shell of the charging case needs to have holes and slots to accommodate the charging and discharging plug. However, in the existing technology, the injection mold cannot directly form holes and slots on the lower shell of the charging case during injection molding, and subsequent processing is required.

[0004] Therefore, it is of great importance to design a charging box injection mold to solve the above-mentioned defects. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a charging box injection mold, which aims to solve the technical problem that the existing injection mold cannot directly form holes and grooves on the lower shell of the charging box during injection molding.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a charging box injection mold, which includes a lower mold and an upper mold; the upper mold is movably connected to the top of the lower mold.

[0009] The lower mold includes an outer frame, a cavity mold, limiting posts, a top block, a first movable component, a second movable component, and a top plate. The outer frame is movably connected to the bottom of the upper mold, the cavity mold is sleeved on the inner side of the outer frame, four sets of limiting posts are fixedly connected to the top of the outer frame, the top block is slidably connected to the bottom of the inner side of the cavity mold, the first movable component is fixedly connected to the top of the front of the outer frame, the second movable component is fixedly connected to the top of the right side of the outer frame, and the top plate is rotatably connected to the bottom of the outer frame.

[0010] The upper mold includes a cover plate, a punch, limiting holes, injection holes, and a connecting rod. The cover plate is movably connected to the top of the outer frame, the punch is fixedly connected to the bottom of the cover plate, four sets of limiting holes are respectively opened at the four corners of the cover plate, and the limiting pins are connected to the limiting holes. The injection hole is opened at the top of the cover plate, and the connecting rod is fixedly connected to the center of the top of the cover plate.

[0011] When using the injection mold of this technical solution, first, the cavity mold is fitted onto the inner side of the outer frame, and the punch is installed at the bottom of the cover plate. Then, the cover plate is moved downwards, and the four sets of limiting holes on the cover plate are engaged with the four sets of limiting posts on the top of the outer frame. The downward movement of the cover plate will drive the punch downwards. Finally, the cover plate and the outer frame are closed, and a mold gap is formed between the punch and the cavity mold. Then, by rotating the first adjusting bolt, the first adjusting bolt pushes the first moving block to move backwards. The rear end of the first moving block passes through the groove and inserts into the interior of the first slot. Then, by rotating the second adjusting bolt, the second adjusting bolt... When rotated, the second moving block is pushed to the left. The left end of the second moving block passes through the sliding hole and is inserted into the interior of the second slot. Then, plastic raw material is injected into the mold gap through the injection hole at the top of the cover plate. After the product is formed and cooled, the first moving block is reset by rotating the first adjusting bolt in the opposite direction. The second moving block is reset by rotating the second adjusting bolt in the opposite direction. Then, the cover plate is moved upward and separated from the outer frame. Then, the right end of the top plate is pressed downward. The left end of the top plate will push the top rod upward. When the top rod moves upward, it drives the top block to move upward, thereby lifting the product for easy removal.

[0012] Preferably, the first movable component includes a first fixed block, a first adjusting bolt, and a first movable block. The first fixed block is fixedly connected to the top of the front of the outer frame, the first adjusting bolt is threadedly connected to the central axis of the first fixed block, the first movable block is rotatably connected to the rear end of the first adjusting bolt, and the first movable block is slidably connected to the outer frame.

[0013] The first movable component includes a first fixed block, a first adjusting bolt, and a first movable block. The first fixed block is fixedly connected to the top of the front of the outer frame. The first adjusting bolt is threadedly connected to the central axis of the first fixed block. The first movable block is rotatably connected to the rear end of the first adjusting bolt and is slidably connected to the outer frame.

[0014] Furthermore, a groove is provided at the front end of the die corresponding to the position of the first moving block, and a first slot is provided at the front end of the punch corresponding to the position of the first moving block. The dimensions of the groove and the first slot are equal to those of the first moving block.

[0015] Furthermore, a sliding hole is provided on the right side of the die corresponding to the position of the second moving block, and the second moving block is slidably connected to the sliding hole. A second slot is provided on the right end of the punch corresponding to the position of the second moving block, and the size of the second slot is equal to that of the second moving block.

[0016] Furthermore, a long groove is provided at the bottom of the outer frame, located at the position of the top plate, and the right end of the top plate is located inside the long groove. A top rod is fixedly connected to the bottom of the top block, and the top plate and the top rod are used in conjunction.

[0017] Furthermore, a circular groove is provided at the bottom of the inner side of the die, the diameter of which is equal to the diameter of the top block. Through holes are provided at the center of the circular groove and at the bottom of the outer frame, where the top rod is located. The top rod is slidably connected to the through holes.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The injection mold of this utility model, through the design of the outer frame, allows for the following process during use: first, the concave mold is fitted onto the inner side of the outer frame, and the convex mold is installed at the bottom of the cover plate. Finally, the cover plate and the outer frame are closed. By rotating the first adjusting bolt, the rear end of the first moving block can pass through the groove and be inserted into the interior of the first slot. By rotating the second adjusting bolt, the left end of the second moving block can pass through the sliding hole and be inserted into the interior of the second slot. This creates a mold gap between the convex and concave molds that is exactly the same as the lower shell of the charging box. Then, plastic material is injected into the mold gap through the injection hole at the top of the cover plate. A groove is formed at the location of the first and second moving blocks, eliminating the need for subsequent drilling and increasing practicality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the device of this utility model;

[0022] Figure 2 This is a schematic diagram showing the overall structure of the device of this utility model separated from its components;

[0023] Figure 3 This is a schematic diagram of the outer frame structure of the device of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the second movable component in the device of this utility model;

[0025] Figure 5 This is a schematic diagram of the bottom structure of the outer frame in the device of this utility model;

[0026] Figure 6 This is a schematic diagram of the concave mold structure in the device of this utility model;

[0027] Figure 7 This is a schematic diagram of the punch structure in the device of this utility model.

[0028] The markings in the attached diagram are as follows: 1. Lower mold; 101. Outer frame; 102. Cavity mold; 103. Limiting post; 104. Top block; 105. First movable component; 1051. First fixing block; 1052. First adjusting bolt; 1053. First moving block; 106. Second movable component; 1061. Second fixing block; 1062. Second adjusting bolt; 1063. Second moving block; 107. Top plate; 2. Upper mold; 201. Cover plate; 202. Punch; 203. Limiting hole; 204. Injection hole; 205. Connecting rod; 3. Groove; 4. First slot; 5. Sliding hole; 6. Second slot; 7. Long groove; 8. Top rod; 9. Circular groove; 10. Through hole. Detailed Implementation

[0029] This specific embodiment is a charging box injection mold, the structural schematic diagram of which is shown below. Figures 1-7 As shown, the injection mold includes a lower mold 1 and an upper mold 2, with the upper mold 2 movably connected above the lower mold 1;

[0030] First, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this embodiment, the specific structure of the lower mold 1 is as follows:

[0031] The lower mold 1 includes an outer frame 101, a cavity mold 102, limiting posts 103, a top block 104, a first movable component 105, a second movable component 106, and a top plate 107. The outer frame 101 is movably connected to the bottom of the upper mold 2. The cavity mold 102 is sleeved on the inner side of the outer frame 101. The four sets of limiting posts 103 are all fixedly connected to the top of the outer frame 101. The top block 104 is slidably connected to the bottom of the inner side of the cavity mold 102. The first movable component 105 is fixedly connected to the top of the front of the outer frame 101. The second movable component 106 is fixedly connected to the top of the right side of the outer frame 101. The top plate 107 is rotatably connected to the bottom of the outer frame 101.

[0032] Secondly, please refer to Figure 1 , Figure 2 and Figure 7 In this embodiment, the specific structure of the upper mold 2 is as follows:

[0033] The upper mold 2 includes a cover plate 201, a punch 202, a limiting hole 203, an injection hole 204, and a connecting rod 205. The cover plate 201 is movably connected to the top of the outer frame 101. The punch 202 is fixedly connected to the bottom of the cover plate 201. Four sets of limiting holes 203 are respectively opened at the four corners of the cover plate 201, and the limiting post 103 is sleeved with the limiting hole 203. The injection hole 204 is opened at the top of the cover plate 201. The connecting rod 205 is fixedly connected to the center of the top of the cover plate 201.

[0034] When using the device of this technical solution, first, the die 102 is fitted onto the inner side of the outer frame 101, and the punch 202 is installed onto the bottom of the cover plate 201. Then, the cover plate 201 is moved downward, so that the four sets of limiting holes 203 on the cover plate 201 are engaged with the four sets of limiting posts 103 on the top of the outer frame 101. The downward movement of the cover plate 201 will drive the punch 202 to move downward. Finally, the cover plate 201 and the outer frame 101 are closed, and a mold gap is formed between the punch 202 and the die 102. Then, the first movable component 1 is adjusted. 05 and the second movable component 106, and then inject plastic raw material into the mold gap through the injection hole 204 at the top of the cover plate 201. After the product is formed and cooled, the first movable component 105 and the second movable component 106 are reset, the cover plate 201 is moved upward and separated from the outer frame 101, and the right end of the top plate 107 is pressed downward. The left end of the top plate 107 will push the push rod 8 to move upward. When the push rod 8 moves upward, it drives the top block 104 to move upward, thereby lifting the product and making it easy to remove.

[0035] For further details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The first movable component 105 includes a first fixed block 1051, a first adjusting bolt 1052, and a first movable block 1053. The first fixed block 1051 is fixedly connected to the top of the front of the outer frame 101. The first adjusting bolt 1052 is threadedly connected to the central axis of the first fixed block 1051. The first movable block 1053 is rotatably connected to the rear end of the first adjusting bolt 1052 and is slidably connected to the outer frame 101. A groove 3 is provided at the front end of the die 102 at a position corresponding to the first movable block 1053. A first slot 4 is provided at the front end of the punch 202 at a position corresponding to the first movable block 1053. The dimensions of the groove 3 and the first slot 4 are equal to those of the first movable block 1053. By rotating the first adjusting bolt 1052, the first adjusting bolt 1052 pushes the first movable block 1053 to move backward, so that the rear end of the first movable block 1053 passes through the groove 3 and is inserted into the interior of the first slot 4.

[0036] For further details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7The second movable component 106 includes a second fixed block 1061, a second adjusting bolt 1062, and a second movable block 1063. The second fixed block 1061 is fixedly connected to the top right side of the outer frame 101. The second adjusting bolt 1062 is threadedly connected to the central axis of the second fixed block 1061. The second movable block 1063 is rotatably connected to the left end of the second adjusting bolt 1062 and is slidably connected to the outer frame 101. A sliding hole 5 is provided on the right side of the die 102 at a position corresponding to the second movable block 1063. The second movable block 1063 is slidably connected to the sliding hole 5. A second slot 6 is provided on the right end of the punch 202 at a position corresponding to the second movable block 1063. The size of the second slot 6 is equal to that of the second movable block 1063. By rotating the second adjusting bolt 1062, the second movable block 1063 is pushed to the left, so that the left end of the second movable block 1063 passes through the sliding hole 5 and is inserted into the interior of the second slot 6.

[0037] For further details, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 and Figure 6 A long groove 7 is provided at the bottom of the outer frame 101 and at the position of the top plate 107, and the right end of the top plate 107 is located inside the long groove 7. A push rod 8 is fixedly connected to the bottom of the top block 104, and the top plate 107 and the push rod 8 are used in conjunction. A circular groove 9 is provided at the bottom of the inner side of the cavity mold 102. The diameter of the circular groove 9 is equal to the diameter of the top block 104. A through hole 10 is provided at the center of the circular groove 9 and at the bottom of the outer frame 101 and at the position of the push rod 8. The push rod 8 is slidably connected to the through hole 10. In use, the top block 104 is initially embedded in the inner side of the circular groove 9, and the top is flush with the bottom of the cavity mold 102. When the right end of the top plate 107 is pressed down, the left end of the top plate 107 will push the push rod 8 to move upward. When the push rod 8 moves upward, it drives the top block 104 to move upward, thereby ejecting the product from the inner side of the cavity mold 102.

[0038] When using the device of this technical solution, firstly, the concave mold 102 is fitted onto the inner side of the outer frame 101, and the convex mold 202 is installed onto the bottom of the cover plate 201. Then, the cover plate 201 is moved downward, and the four sets of limiting holes 203 on the cover plate 201 are engaged with the four sets of limiting posts 103 on the top of the outer frame 101. The downward movement of the cover plate 201 will drive the convex mold 202 to move downward. Finally, the cover plate 201 and the outer frame 101 are closed, and a mold gap is formed between the convex mold 202 and the concave mold 102. Then, by rotating the first adjusting bolt 1052, the first adjusting bolt 1052 pushes the first moving block 1053 to move backward. The rear end of the first moving block 1053 passes through the groove 3 and inserts into the interior of the first slot 4. Then, by rotating the second adjusting bolt 1062, the second adjusting bolt 1062 pushes the second moving block 1063 to move to the left. The left end passes through the sliding hole 5 and is inserted into the interior of the second slot 6, so that the mold gap between the punch 202 and the die 102 is exactly the same as that of the lower shell of the charging box. Then, plastic raw material is injected into the mold gap through the injection hole 204 at the top of the cover plate 201. The first moving block 1053 and the second moving block 1063 are formed at their positions, and no further drilling is required. After the product is formed and cooled, the first moving block 1053 is reset by rotating the first adjusting bolt 1052 in the opposite direction, and the second moving block 1063 is reset by rotating the second adjusting bolt 1062 in the opposite direction. Then, the cover plate 201 is moved upward and separated from the outer frame 101. Then, the right end of the top plate 107 is pressed downward, and the left end of the top plate 107 will push the push rod 8 upward. When the push rod 8 moves upward, it drives the top block 104 to move upward, thereby lifting the product for easy removal.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A charging case injection mold, the injection mold comprising a lower mold (1) and an upper mold (2); characterized in that, The upper mold (2) is movably connected to the top of the lower mold (1); The lower mold (1) includes an outer frame (101), a cavity mold (102), a limiting post (103), a top block (104), a first movable component (105), a second movable component (106), and a top plate (107). The outer frame (101) is movably connected to the lower part of the upper mold (2). The cavity mold (102) is sleeved on the inner side of the outer frame (101). The four sets of limiting posts (103) are fixedly connected to the top of the outer frame (101). The top block (104) is slidably connected to the bottom of the inner side of the cavity mold (102). The first movable component (105) is fixedly connected to the top of the front of the outer frame (101). The second movable component (106) is fixedly connected to the top of the right side of the outer frame (101). The top plate (107) is rotatably connected to the bottom of the outer frame (101). The upper mold (2) includes a cover plate (201), a punch (202), a limiting hole (203), an injection hole (204), and a connecting rod (205). The cover plate (201) is movably connected to the top of the outer frame (101). The punch (202) is fixedly connected to the bottom of the cover plate (201). The four sets of limiting holes (203) are respectively opened at the four corners of the cover plate (201), and the limiting post (103) is sleeved with the limiting hole (203). The injection hole (204) is opened at the top of the cover plate (201), and the connecting rod (205) is fixedly connected to the center of the top of the cover plate (201).

2. The charging box injection mold according to claim 1, characterized in that, The first movable component (105) includes a first fixed block (1051), a first adjusting bolt (1052), and a first movable block (1053). The first fixed block (1051) is fixedly connected to the top of the front of the outer frame (101). The first adjusting bolt (1052) is threadedly connected to the central axis of the first fixed block (1051). The first movable block (1053) is rotatably connected to the rear end of the first adjusting bolt (1052), and the first movable block (1053) is slidably connected to the outer frame (101).

3. The charging box injection mold according to claim 1, characterized in that, The second movable component (106) includes a second fixed block (1061), a second adjusting bolt (1062), and a second movable block (1063). The second fixed block (1061) is fixedly connected to the top right side of the outer frame (101). The second adjusting bolt (1062) is threadedly connected to the central axis of the second fixed block (1061). The second movable block (1063) is rotatably connected to the left end of the second adjusting bolt (1062), and the second movable block (1063) is slidably connected to the outer frame (101).

4. The charging box injection mold according to claim 2, characterized in that, The front end of the concave die (102) is provided with a groove (3) at the position corresponding to the first moving block (1053), and the front end of the convex die (202) is provided with a first slot (4) at the position corresponding to the first moving block (1053). The dimensions of the groove (3) and the first slot (4) are equal to those of the first moving block (1053).

5. The charging box injection mold according to claim 3, characterized in that, A sliding hole (5) is provided on the right side of the die (102) at a position corresponding to the second moving block (1063). The second moving block (1063) is slidably connected to the sliding hole (5). A second slot (6) is provided on the right end of the punch (202) at a position corresponding to the second moving block (1063). The size of the second slot (6) is equal to that of the second moving block (1063).

6. The charging box injection mold according to claim 1, characterized in that, A long groove (7) is provided at the bottom of the outer frame (101) and at the position of the top plate (107), and the right end of the top plate (107) is located inside the long groove (7). A top rod (8) is fixedly connected to the bottom of the top block (104), and the top plate (107) and the top rod (8) are used in conjunction.

7. A charging box injection mold according to claim 6, characterized in that, A circular groove (9) is provided at the bottom of the inner side of the cavity (102). The diameter of the circular groove (9) is equal to the diameter of the top block (104). A through hole (10) is provided at the center of the circular groove (9) and at the bottom of the outer frame (101) and at the position of the top rod (8). The top rod (8) is slidably connected to the through hole (10).

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