Novel glue sealing structure
By designing small elastic blocks at the two-injection position of the injection mold, the front pre-pressure is achieved, which solves the problem that traditional molds are difficult to seal when the product angle is small, and a stable and reliable sealing effect is achieved.
Patent Information
- Application Number
- CN202422393608.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Traditional injection molds are difficult to achieve effective sealing when the product angle is small, which can easily lead to product shoveling and edge-covering, and cannot achieve the purpose of sealing.
A new type of sealant structure is designed, and a small elastic block is added at the two-firing position, which is changed to the front pre-pressure in the direction of the elastic block movement. When closing the mold, the sealant is achieved by compressing the pre-pressure position of the small elastic block.
Through this structure, the sealant of the double-shoot product is realized, avoiding product shoveling and edge-blade, which is suitable for scenarios with small product angles, and improving the stability and reliability of the sealant.
Smart Images
Figure CN222946112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to injection mold technology, in particular to a novel glue sealing structure. Background Art
[0002] Traditionally, this type of product structure is sealed directly by two shots, and no other structure is used. The specific solution is to add 0.05mm of glue in one shot, and achieve the purpose of sealing by pre-pressing 0.05mm in one shot. However, it is not applicable when the draft angle is small and the height difference is less than 0.05mm. The specific reason is: the sealing position of the first shot needs to be pre-pressed by 0.05mm. If the step difference is less than 0.05mm, the pre-pressing amount needs to be subtracted. The step difference of that shot is 0mm. When the mold is closed, the steel material of the second shot can easily scrape the product of the first shot, and it is easy to have flashing, which cannot achieve the purpose of sealing;
[0003] The two-shot sealing mechanism is realized through a new structure. A small spring block is designed at the second-shot position. The inclined pre-pressure in the mold opening direction is changed to the positive pre-pressure in the spring block movement direction. When the mold is closed, the small spring block compresses the pre-pressure position to achieve the purpose of sealing. Utility Model Content
[0004] Purpose of the utility model: The purpose of the utility model is to provide a new structure to realize the two-shot sealing mechanism. A small spring block is designed at the second-shot position, and the inclined pre-pressure in the mold opening direction is changed to the positive pre-pressure in the movement direction of the spring block. When the mold is closed, the pre-pressure position is compressed by the small spring block to achieve the purpose of sealing.
[0005] Technical solution: A new type of sealing structure includes a rear mold, the outer side wall of the rear mold is fixedly connected to a two-shot rear mold core, the outer side wall of the rear mold is fixedly connected to a one-shot rear mold core, and the outer side wall of the rear mold is fixedly connected to the rear mold core.
[0006] Furthermore, a front mold is provided on one side of the rear mold, the outer side wall of the front mold is fixedly connected to a first-shot front mold core, the outer side wall of the front mold is fixedly connected to a second-shot front mold core, and the outer side wall of the front mold is fixedly connected to an A plate.
[0007] Furthermore, a cylinder induction switch is fixedly connected to the upper surface of the rear mold, a cylinder seat is fixedly connected below the cylinder induction switch, and the cylinder seat signal is connected to the cylinder.
[0008] The interior of the two-shot front mold core is fixedly connected with a two-shot bullet block, and the outer side wall of the two-shot front mold core is fixedly connected with a spring support pin.
[0009] Furthermore, the outer side wall of the spring support pin is fixedly connected with a spring;
[0010] Furthermore, an oil cylinder induction switch is fixedly connected to the upper surface of the rear mold, and an oil cylinder seat is fixedly connected below the oil cylinder induction switch.
[0011] Furthermore, the cylinder seat signal is connected to the cylinder.
[0012] Beneficial effects: In view of the shortcomings of the existing technology, this project provides a new type of sealing structure research and development, so that the product will not fail to achieve the purpose of sealing due to the small angle of the product. There is no need to ask customers to change the product to meet the product requirements. It breaks the traditional appearance and sealing problems of such products. By adding a spring block to the sealing position of the second-shot product, the vertical direction of the mold opening is converted to the positive pre-pressure in the direction of the spring block. When opening and closing the mold, the product will not be crushed or burred due to the small angle. This new technology is precise and reliable in structure, with high technical content. It solves the problem of difficult sealing of products with small angles and provides a driving force for the technical field of the mold industry.
[0013] Through this mechanism, the two-shot product sealing is realized, so that the product can avoid scraping and flashing. A new two-shot sealing structure is provided. Compared with the traditional sealing method, this structure changes from oblique sealing to front sealing, which is stable and reliable. Facts have proved that there is basically no need for maintenance in subsequent production. When the second-shot sealing position is at the first-shot step difference is less than the pre-pressure amount, it is very easy to scrape the product and cause flashing. When this structure is adopted, a spring block is designed at a position with a small step difference, and the oblique pre-pressure in the mold opening direction is changed to the front pre-pressure in the direction of the spring block movement. When the mold is closed, the spring block moves, presses the first-shot sealing position, and presses in 0.05mm. The purpose of sealing is achieved. When the mold is opened, the spring block moves backward and will not affect the sealing position. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the rear mold of the utility model;
[0015] Figure 2 It is a schematic diagram of the left side of the front mold of the utility model;
[0016] Figure 3 It is a right schematic diagram of the front mold of the utility model;
[0017] Figure 4 It is a schematic diagram of a two-shot product of the utility model.
[0018] In the figure: 1. two-shot rear mold core; 2. two-shot bullet block; 3. spring; 4. spring support pin; 5. A plate; 6. oil cylinder induction switch; 7. rear mold core; 8. one-shot rear mold core; 9. one-shot front mold core; 10. two-shot front mold core; 11. oil cylinder seat; 12. oil cylinder. DETAILED DESCRIPTION
[0019] In order to make the technical solution of the utility model clearer, the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] Example 1
[0021] like Figure 1-Figure 4 As shown, a novel sealing structure is provided, including a rear mold, the outer side wall of the rear mold is fixedly connected with a two-shot rear mold core 1, the outer side wall of the rear mold is fixedly connected with a one-shot rear mold core 8, the outer side wall of the rear mold is fixedly connected with a rear mold core 7, a front mold is arranged on one side of the rear mold, the outer side wall of the front mold is fixedly connected with a one-shot front mold core 9, the outer side wall of the front mold is fixedly connected with a two-shot front mold core 10, the outer side wall of the front mold is fixedly connected with an A plate 5, the interior of the two-shot front mold core 10 is fixedly connected with a two-shot bullet block 2, the outer side wall of the two-shot front mold core 10 is fixedly connected with a spring support pin 4, the outer side wall of the spring support pin 4 is fixedly connected with a spring 3, the upper surface of the rear mold is fixedly connected with a cylinder induction switch 6, the lower part of the cylinder induction switch 6 is fixedly connected with a cylinder seat 11, and the cylinder seat 11 signal is connected with a cylinder 12;
[0022] The two-shot rear mold core 1 is installed on the rear mold side to form the rear mold glue position for the two-shot product. The two-shot bullet block is installed in the two-shot front mold core 10. When the mold is closed, the bullet block is closed to seal the two-shot product. The spring 3 is installed on the spring support pin 4 to provide power for the two-shot bullet block 2. The spring support pin 4 is installed in the two-shot front mold core 10 to provide a guide for the spring 3. The A plate 5 is installed on the front mold side to fix the entire transmission mechanism. The cylinder sensor switch 6 is installed on the cylinder seat 11 to provide a signal to the cylinder 12. The rear mold core 7 is installed on the rear mold side. When the mold is ejected, the one / two-shot product rotates 180 degrees to replace the glue position. The one-shot rear mold core 8 is installed. Installed on the rear mold side, it is the rear mold glue position for molding one-shot products, the one-shot front mold core 9, installed on the front mold side, it is the front mold glue position for molding one-shot products, the two-shot front mold core 10, installed on the front mold side, it is the front mold glue position for molding two-shot products, the mold injects one-shot products, and after cooling, the mold is opened, the rear mold core 7 ejects the product together, and then rotates 180 degrees, resets, and the one / two-shot products are replaced. When the mold is closed, the two-shot bullet block 2 is closed and pre-pressed for the one-shot product by 0.05mm, and then the mold injects one / two-shot products. After cooling, the mold is opened, and the two-shot bullet block 2 bounces back under the action of the spring 3, and the pre-pressing direction is converted from the vertical direction of mold opening to the positive pre-pressing in the bullet direction.
[0023] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A new type of sealing structure, including a rear mold, characterized in that: The outer side wall of the rear mold is fixedly connected to a two-shot rear mold core (1), the outer side wall of the rear mold is fixedly connected to a one-shot rear mold core (8), and the outer side wall of the rear mold is fixedly connected to a rear mold core (7).
2. A new type of sealing structure according to claim 1, characterized in that: A front mold is arranged on one side of the rear mold, the outer side wall of the front mold is fixedly connected to a first-shot front mold core (9), the outer side wall of the front mold is fixedly connected to a second-shot front mold core (10), and the outer side wall of the front mold is fixedly connected to an A plate (5).
3. A new type of sealing structure according to claim 2, characterized in that: The interior of the second-shot front mold core (10) is fixedly connected to a second-shot bullet block (2), and the outer side wall of the second-shot front mold core (10) is fixedly connected to a spring support pin (4).
4. A new type of sealing structure according to claim 3, characterized in that: The outer side wall of the spring support needle (4) is fixedly connected with a spring (3).
5. The novel sealing structure according to claim 1 is characterized in that: The upper surface of the rear mold is fixedly connected to a cylinder induction switch (6), and the lower portion of the cylinder induction switch (6) is fixedly connected to a cylinder seat (11).
6. A new type of sealing structure according to claim 5, characterized in that: The oil cylinder seat (11) is signal-connected to the oil cylinder (12).