Structure for preventing small insert from being cracked up during mold closing and injection mold
By introducing a lift and support structure into the injection mold, the collision between the slider and the small insert is avoided, the problem of the slider colliding with the small insert is solved, and the stable operation of the mold and the improvement of production efficiency are achieved.
Patent Information
- Application Number
- CN202422907871.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-28
AI Technical Summary
During the injection molding process, the collision between the slider and the small insert causes damage to the small insert, affecting the mold maintenance cycle and production efficiency.
The lifting part structure includes a housing, a spring and a ball bearing. The elastic force of the spring lifts the slider to prevent it from colliding with the small insert during mold closing. The support part supports the slider to ensure that it moves smoothly to the top of the small insert.
It effectively prevents collisions between the slider and small inserts, reduces mold maintenance frequency, and improves production stability and efficiency.
Smart Images
Figure CN223478194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding technology, and in particular to a structure and injection mold for preventing small inserts from being damaged during mold closing. Background Art
[0002] like Figure 1 The product shown has a through hole, which is formed by a small insert and a slider: after the small insert is in the corresponding position, the slider slides to the top of the small insert when the mold is closed, and then injection molding is performed to form it on the product.
[0003] In actual production, due to issues such as precision, the slider may collide with small inserts during sliding, causing damage to the small inserts and forcing the mold to be repaired. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a structure and injection mold to prevent small inserts from being damaged during mold closing, thus achieving the effect that the slider will not collide with the small inserts during mold closing.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] This utility model provides a structure to prevent small inserts from being damaged during mold closing, including a slider and several small inserts. The slider is used to slide during mold closing to hit the through hole in the product molding process. The small inserts are used to be located inside the through hole during product molding. It also includes a lifting member located below the slider. The lifting member is used to lift the slider when it slides towards the product so that the slider collides with the small inserts during the through hole molding process.
[0007] Furthermore, the lifting member includes a housing, a spring disposed inside the housing, and a ball slidably disposed on the housing. The top of the housing is provided with a limiting hole, through which the ball protrudes out of the housing. The limiting hole is used to prevent the ball from completely detaching from the housing. The two ends of the spring are respectively connected to the housing and the ball.
[0008] Furthermore, the bottom of the outer casing is provided with a screw hole, which is used to fix it to an external injection mold by screws.
[0009] Furthermore, one end of the slider is provided with a plurality of forming parts, and the plurality of forming parts are provided in correspondence with a plurality of small inserts. The forming parts are used to form the through holes of the product.
[0010] Furthermore, it also includes a support member located between the small insert and the lifting member, which is used to support the slider that is being lifted.
[0011] Furthermore, several small inserts are installed at intervals on the support.
[0012] This utility model also discloses an injection mold, including the above-mentioned structure to prevent small inserts from being damaged during mold closing.
[0013] The beneficial effects of this utility model are as follows: By setting up the lifting component, the slider is lifted a certain distance by the lifting component when the mold is closed and sliding, so that the slider is exactly above the small insert after sliding to a specific position, thus avoiding the collision between the two. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the product described in this utility model.
[0015] Figure 2 This is a schematic diagram of the present invention.
[0016] Figure 3 This is a schematic diagram of the internal structure of the lifting component of this utility model.
[0017] Reference numerals: 1—slider, 2—small insert, 3—lifting component, 4—support component, 5—product, 11—forming part, 31—outer shell, 32—spring, 33—ball bearing, 34—limiting hole, 35—screw hole, 51—through hole, 52—insertion hole, 53—sliding hole. DETAILED DESCRIPTION
[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.
[0019] like Figure 2 and Figure 3 As shown, the present invention provides a structure to prevent small inserts 2 from being damaged during mold closing, including a slider 1 and several small inserts 2. The slider 1 is used to slide during mold closing to form a through hole 51 in the product 5. The small inserts 2 are used to be located inside the through hole 51 during product 5 forming. The invention also includes a lifting member 3, which is located below the slider 1. The lifting member 3 is used to lift the slider 1 when the slider 1 slides towards the product 5 so that the slider 1 collides with the small inserts 2 during the forming of the through hole.
[0020] Specifically, this utility model is applied in injection molds, specifically for molding such as Figure 1 Product 5 is shown. And from... Figure 1 It can be seen that the through hole 51 is composed of an insert hole 52 and a sliding hole 53. The width of the insert hole 52 is smaller than the width of the sliding hole 53. The insert hole 52 is located directly below the sliding hole 53 and is connected to the sliding hole 53. Therefore, the small insert 2 and the slider 1 cooperate to form the through hole 51 during injection molding. In actual production, the slider 1 is driven to slide by the mold closing to reach directly above the small insert 2.
[0021] By setting up the lifting member 3, the slider 1 is lifted a certain distance by the lifting member 3 when the mold is closed and sliding, so that the slider 1 is exactly above the small insert 2 after sliding to a specific position, avoiding collision between the two, and thus successfully completing the forming of the through hole 51.
[0022] In this embodiment, the lifting member 3 includes a housing 31, a spring 32 disposed inside the housing 31, and a ball bearing 33 slidably disposed on the housing 31. The top of the housing 31 is provided with a limiting hole 34, and the ball bearing 33 protrudes out of the housing 31 through the limiting hole 34. The limiting hole 34 is used to prevent the ball bearing from completely detaching from the housing 31. The two ends of the spring 32 are respectively connected to the housing 31 and the ball bearing 33.
[0023] The specific action of the lifting component 3 is as follows: the spring 32 always applies a spring force to the ball 33, so that the ball 33 tends to move upward and always protrudes to the outside through the limiting hole 34; when the slider 1 slides and touches the ball 33, the spring 32 is compressed, which causes the force applied to the ball 33 to increase, so that the ball 33 does not fall too much and always has a lifting force on the slider 1, so that the slider 1 is slightly raised.
[0024] Normally, slider 1 only needs to be raised to a very small height to avoid colliding with small insert 2, or slider 1 can be automatically raised after contacting small insert 2 by applying an upward force to reduce collision. Therefore, the present invention preferably adopts the above-mentioned lifting member 3 structure, or directly uses ball screw 33, so that slider 1 can be slightly raised when it moves due to mold closing, ensuring that it will not collide with small insert 2.
[0025] Specifically, the bottom of the outer shell 31 is provided with a screw hole 35, which is used to fix it to the external injection mold by screws, thereby achieving the effect of easy replacement of the lifting part 3 and shortening the maintenance cycle of this utility model.
[0026] In this embodiment, one end of the slider 1 is provided with a plurality of forming parts 11, and the plurality of forming parts 11 are respectively arranged in correspondence with a plurality of small inserts 2. The forming parts 11 are used to form the through holes 51 of the product 5. The slider 1 slides so that the plurality of forming parts 11 slide directly above the plurality of small inserts 2 to achieve the positioning, so that the product 5 forms a plurality of through holes 51.
[0027] In this embodiment, the present invention also includes a support member 4, which is located between the small insert 2 and the lifting member 3. The support member 4 is used to support the lifted slider 1. That is, the support member 4 can be set to be slightly higher than the slider 1. During the sliding process of the slider 1, the slider 1 moves smoothly to the top of the support member 4 without rigidly colliding with the side wall of the support member 4 because of the lifting member 3. After the slider 1 is in place, one end of it with the forming part 11 is supported by the support member 4, and the other end is formed by the lifting member 3, thereby realizing the smoothness of the entire movement process. Furthermore, the presence of the support member 4 further ensures that the slider 1 will not collide with the small insert 2.
[0028] Specifically, several small inserts 2 are installed at intervals on the support 4, which further improves the ease of installation of the small inserts 2 and the stability of their position.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A structure for preventing small inserts from being damaged during mold closing, comprising a slider and a plurality of small inserts, the slider being used to slide during mold closing to pass through a hole in the product molding process, and the small inserts being used to be positioned within the hole during product molding, characterized in that: It also includes a lifting element, which is located below the slider. The lifting element is used to lift the slider as it slides toward the product so that the slider collides with the small insert when the molding nozzle is pierced.
2. The structure for preventing small inserts from being damaged during mold closing according to claim 1, characterized in that: The lifting component includes a housing, a spring disposed inside the housing, and a ball bearing slidably disposed on the housing. The top of the housing is provided with a limiting hole, through which the ball bearing protrudes out of the housing. The limiting hole is used to prevent the ball bearing from completely detaching from the housing. The two ends of the spring are respectively connected to the housing and the ball bearing.
3. The structure for preventing small inserts from being damaged during mold closing according to claim 2, characterized in that: The bottom of the housing is provided with a screw hole, which is used to fix it to an external injection mold by screws.
4. The structure for preventing small inserts from being damaged during mold closing according to claim 1, characterized in that: One end of the slider is provided with several forming parts, and the forming parts are arranged one-to-one with several small inserts. The forming parts are used to form the through holes of the product.
5. The structure for preventing small inserts from being damaged during mold closing according to claim 1, characterized in that: It also includes a support member located between the small insert and the lifting member, which is used to support the slider that is being lifted.
6. The structure for preventing small inserts from being damaged during mold closing according to claim 5, characterized in that: Several small inserts are installed at intervals on the support.
7. An injection mold, characterized in that: The structure includes any one of claims 1-6 for preventing small inserts from being damaged during mold closing.