Injection mold with shrink-resistant structure

Abstract

The utility model discloses an injection mold with a shrink-resistant structure, which belongs to the technical field of injection molds and comprises an injection mold body, a connecting block is fixedly connected below the injection mold body, and a box body is fixedly connected below the connecting block. Through the arrangement of the electric push rod, the sealing cover, the gear, the second rack and the placing plate, when the electric push rod drives the sealing cover to move rightwards, the first rack connected with the sealing cover can synchronously move rightwards, so that the gear meshed with the first rack can be in a rotating state; according to the device, the charging pile shell can be slowly cooled and hardened, so that when an injection mold body completes injection molding of the charging pile shell, the charging pile shell can be put into a sealed box body in cooperation with movement of a sealing cover, and the situation that the charging pile shell just subjected to injection molding is affected by air, and the temperature is rapidly lost is prevented; and therefore, the probability of producing defective charging pile shells due to shrinkage can be greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to an injection mold with an anti-shrinkage structure. Background Art

[0002] The function of a car charging pile is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in parking lots or charging stations in public buildings and residential areas. It can charge various types of electric vehicles according to different voltage levels. At present, injection molds are required to produce the shells of car charging piles in the production process. However, when the existing car charging pile shell injection molds are used to inject the charging pile shell, they are usually placed in an open space, causing the charging pile shell just after injection molding to be affected by the air and lose temperature rapidly, which in turn produces a defective charging pile shell due to shrinkage. Therefore, an injection mold with an anti-shrinkage structure is needed to solve the above problems. Utility Model Content

[0003] The utility model aims to provide an injection mold with an anti-shrinkage structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with an anti-shrinkage structure, comprising an injection mold body, a connecting block fixedly connected to the bottom of the injection mold body, a box fixedly connected to the bottom of the connecting block, an electric push rod fixedly connected inside the connecting block, a sealing cover fixedly connected to one end of the electric push rod, and a first rack fixedly connected to the bottom of the sealing cover.

[0005] A bearing is clamped on the back side of the inner side of the box body, a rotating shaft is rotatably connected inside the bearing, a gear is fixedly connected outside the rotating shaft, the gear is meshed with a first rack, a second rack is meshed outside the gear, a placement plate is fixedly connected to the front side of the second rack, and a heater is provided on the front side of the inner side of the box body.

[0006] As a preferred implementation, first through holes are provided on both sides of the box body, and the first rack is located in one of the first through holes.

[0007] As a preferred implementation, second through holes are provided on both sides of the box body, and the second rack is located in one of the second through holes.

[0008] As a preferred embodiment, a sliding block is fixedly connected to the back side of the second rack, and a buffer layer is provided above the placement plate.

[0009] As a preferred embodiment, a limiting hole is provided on the back side of the box body, and the sliding block is located in the limiting hole.

[0010] As a preferred embodiment, two hinges are provided inside one side of the box body, and the two hinges are fixedly connected to the same opening and closing door.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is provided with an electric push rod, a sealing cover, a gear, a second rack and a placement plate. When the electric push rod drives the sealing cover to move to the right, the first rack connected to the sealing cover can move to the right synchronously, so that the gear meshing with the first rack can be in a rotating state, prompting the second rack meshing with the gear to drive the placement plate to move to the left for receiving the charging pile shell after injection molding. At this time, the charging pile shell dropped onto the placement plate can be kept in a sealed box to maintain temperature. At the same time, the heater can better insulate the charging pile shell, so that the charging pile shell can be in a state of slowly cooling and hardening. Then, this device enables the injection mold body to cooperate with the movement of the sealing cover to put it into the sealed box when the injection molding of the charging pile shell is completed, so as to prevent the charging pile shell just after injection molding from being affected by the air and causing rapid temperature loss, thereby greatly reducing the probability of producing defective charging pile shells due to shrinkage.

[0013] The utility model is provided with a second rack and a placement plate. When the hardening work of the charging pile shell is completed, the electric push rod can be used to drive the sealing cover to move to the left, so that the sealing cover can drive the first rack to move to the left synchronously, so that the gear meshing with the first rack can be in a rotating state, so that the second rack meshing with the gear can drive the placement plate to move to the right to a suitable position, which is convenient for taking the charging pile shell. The practicality of this device is improved through the coordinated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the sealing cover and the placement plate of the utility model;

[0016] Figure 3 It is a three-dimensional structural diagram of the injection mold body of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure at point A in the middle.

[0018] In the figure: 1. Injection mold body; 2. Connecting block; 3. Box body; 4. Electric push rod; 5. Sealing cover; 6. First rack; 7. Bearing; 8. Rotating shaft; 9. Gear; 10. Second rack; 11. Placement plate; 12. Heater; 13. First through hole; 14. Second through hole; 15. Slider; 16. Limiting hole; 17. Hinge; 18. Opening and closing door. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with embodiments.

[0020] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] See also Figure 1-4 The utility model provides an injection mold of an anti-shrinkage structure, including an injection mold body 1, a connecting block 2 is fixedly connected to the bottom of the injection mold body 1, a box body 3 is fixedly connected to the bottom of the connecting block 2, first through holes 13 are opened on both sides of the box body 3, a first rack 6 is located in one of the first through holes 13, and the first through hole 13 allows the first rack 6 to have a space to move, so that the first rack 6 can move smoothly, and prevent it from being blocked by the box body 3 and unable to move normally to form a meshing effect with the gear 9;

[0022] Second through holes 14 are provided on both sides of the box body 3, and the second rack 10 is located in one of the second through holes 14. The second through holes 14 allow the second rack 10 to have space to move, so that the second rack 10 can move smoothly and prevent it from being blocked by the box body 3 and unable to drive the placement plate 11 to move normally;

[0023] A limiting hole 16 is provided on the back of the box body 3, and the slider 15 is located in the limiting hole 16. The limiting hole 16 allows the slider 15 to have space to move, so that the second rack 10 has good stability when the slider 15 moves in the limiting hole 16, thereby preventing the second rack 10 from falling due to lack of a support point.

[0024] Two hinges 17 are provided inside one side of the box body 3, and an opening and closing door 18 is fixedly connected to the two hinges 17. The opening and closing door 18 is provided with the conditions for opening and closing rotation by the movable cooperation between the two hinges 17 and the box body 3. When the placement plate 11 pushes the opening and closing door 18, the opening and closing door 18 can be smoothly opened, so that the placement plate 11 can be moved outside the box body 3;

[0025] An electric push rod 4 is fixedly connected inside the connecting block 2, and a sealing cover 5 is fixedly connected to one end of the electric push rod 4. When the electric push rod 4 drives the sealing cover 5 to move rightward to a suitable position, the opening of the box body 3 can be sealed, thereby achieving the effect of preserving the temperature of the charging pile shell after injection molding;

[0026] A first rack 6 is fixedly connected to the bottom of the sealing cover 5, a bearing 7 is clamped on the back of the inner side of the box body 3, a rotating shaft 8 is rotatably connected inside the bearing 7, a gear 9 is fixedly connected outside the rotating shaft 8, and the gear 9 is meshed with the first rack 6. When the first rack 6 moves to the right synchronously with the sealing cover 5, the gear 9 meshed with the first gear 9 can rotate smoothly;

[0027] The gear 9 is meshed with a second rack 10 on the outside, and a placement plate 11 is fixedly connected to the front of the second rack 10. When the gear 9 rotates, the second rack 10 meshing with the gear 9 can drive the placement plate 11 to move to the left, so that the placement plate 11 moving to the left can receive the fallen charging pile shell;

[0028] The back of the second rack 10 is fixedly connected with a slider 15, and a buffer layer is provided above the placement plate 11, so that the second rack 10 has good stability when moving in the second through hole 14 by means of the slider 15, and the buffer layer makes the charging pile shell dropped onto the placement plate 11 have a certain buffering property, so as to prevent the charging pile shell dropped onto the placement plate 11 from being deformed or broken due to inertia;

[0029] A heater 12 is provided on the front side of the inner side of the box body 3 , and the heater 12 enables the charging pile shell located in the box body 3 to have better heat preservation performance, thereby further reducing the probability of shrinkage of the charging pile shell after injection molding.

[0030] The working principle and use process of this utility model:

[0031] When it is necessary to perform shrinkage prevention work on the charging pile shell after injection molding, the electric push rod 4 is first used to drive the sealing cover 5 to move to the right, so that the sealing cover 5 can drive the first rack 6 to move to the right synchronously during the movement to the right, so that the gear 9 meshing with the first rack 6 can be in a rotating state, so that the second rack 10 meshing with the gear 9 can drive the placement plate 11 to move to the left, so that the placement plate 11 moving to the left can receive the fallen charging pile shell, and the sealing cover 5 can seal the opening of the box body 3. At this time, the heater 12 can be used to slightly heat the charging pile shell in the box body 3 to prevent the temperature on its surface from losing quickly.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with an anti-shrinkage structure, comprising an injection mold body (1), characterized in that: A connecting block (2) is fixedly connected below the injection mold body (1), a box body (3) is fixedly connected below the connecting block (2), an electric push rod (4) is fixedly connected inside the connecting block (2), a sealing cover (5) is fixedly connected to one end of the electric push rod (4), and a first rack (6) is fixedly connected below the sealing cover (5); A bearing (7) is clamped on the back side of the inner side of the box body (3), a rotating shaft (8) is rotatably connected inside the bearing (7), a gear (9) is fixedly connected outside the rotating shaft (8), the gear (9) is meshed with a first rack (6), a second rack (10) is meshed outside the gear (9), a placement plate (11) is fixedly connected to the front side of the second rack (10), and a heater (12) is provided on the front side of the inner side of the box body (3).

2. The injection mold of the anti-shrinkage structure according to claim 1, characterized in that: First through holes (13) are provided on both sides of the box body (3), and the first rack (6) is located in one of the first through holes (13).

3. The injection mold of the anti-shrinkage structure according to claim 1, characterized in that: Second through holes (14) are provided on both sides of the box body (3), and the second rack (10) is located in one of the second through holes (14).

4. The injection mold of the anti-shrinkage structure according to claim 1, characterized in that: A slider (15) is fixedly connected to the back of the second rack (10), and a buffer layer is provided above the placement plate (11).

5. The injection mold of the anti-shrinkage structure according to claim 4, characterized in that: A limiting hole (16) is provided on the back of the box body (3), and the sliding block (15) is located in the limiting hole (16).

6. The injection mold of the anti-shrinkage structure according to claim 1, characterized in that: Two hinges (17) are provided inside one side of the box body (3), and the two hinges (17) are fixedly connected to the same opening and closing door (18).

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