Front mold elastic block structure
By improving the front module structure and using the coordination of the limit block and return spring, the wear problem of the sealing area is solved, the product flash is reduced, the product quality is improved and the mold maintenance cost is reduced.
Patent Information
- Application Number
- CN202422123232.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the prior art, the front module elastic block causes wear of the sealant mouth during long-term movement, causing flashes, and affecting product quality.
A front module elastic block structure is designed, including the gap between the front module kernel and the rear module kernel. The elastic block can move up and down and contact the product surface. The limit block is used to adjust the displacement. The side wall of the elastic block is equipped with an inclined surface and a notch. Combined with the return spring and the limit block, the sealing area is protected by the mold opening and closing action.
Effectively prevent wear in the sealing area, reduce product flare, improve product quality and reduce mold maintenance costs.
Smart Images
Figure CN223085214U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of front mold ejector blocks, and specifically relates to a front mold ejector block structure. Background Technique
[0002] Affected by the product structure, when there is a risk of the product sticking to the front mold, to prevent the product from being scratched. We usually design a front mold ejector block in the front mold. In the current solution, when designing, we usually design the four sides of the ejector block to be straight surfaces. In this way, during the long-term movement of the ejector block, the sealing glue opening will be worn, resulting in flash on the product and affecting the product quality. Content of the Utility Model
[0003] (I) Technical Problems to be Solved
[0004] In view of the deficiencies of the prior art, the utility model provides a front mold ejector block structure, which solves the problems raised in the above background technique.
[0005] (II) Technical Solutions
[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A front mold ejector block structure includes a front mold core and a rear mold core. A gap for forming a product is provided between the front mold core and the rear mold core. An ejector block is provided in the front mold core. The ejector block can move up and down along the inside of the front mold core and can contact the surface of the product. A limit block is provided in the front mold core, and the limit block is used for limiting and adjusting the up and down displacement of the ejector block.
[0007] Further, a notch adapted to the product is provided at the bottom end of one side of the ejector block, and an inclined surface connected to the notch is provided on the side wall of the ejector block.
[0008] Further, the inclined surface is located at the lower one-third of the side wall of the ejector block.
[0009] Further, the included angle between the inclined surface and the straight line perpendicular to the side wall of the ejector block is 5°. This solution increases the sealing glue angle by 5° in the sealing glue area between the ejector block and the product.
[0010] Further, a return spring connected to the ejector block and elastically returning is provided in the front mold core.
[0011] Further, the limit block is provided at the bottom end of the other side of the ejector block, and a top travel groove is provided in the ejector block. One end of the limit block is located in the top travel groove.
[0012] Further, the limit block is installed in the front mold core through bolts.
[0013] Further, the PL surface of the rear mold core can be used to push the ejector block to reset.
[0014] Furthermore, the front mold core is arranged in the A plate, the rear mold core is arranged in the B plate, a flow-through groove is also provided in the front mold core, a water inlet pipe communicating with the flow-through groove is provided in the A plate, and a water outlet pipe communicating with the flow-through groove is provided in the A plate. Through the arrangement of structures such as the flow-through groove, the structure is simple, facilitating production, and can also improve the molding speed of the product.
[0015] Furthermore, the flow-through groove is close to the inner wall of the front mold core, the water inlet pipe is arranged at one side position of the A plate, and the water outlet pipe is arranged at the other side position of the A plate; the position of the water inlet pipe is higher than that of the water outlet pipe.
[0016] Installation sequence of the basic structure:
[0017] Step 1: First install the return spring onto the front mold core.
[0018] Step 2: Install the ejector block onto the front mold core.
[0019] Step 3: Fix the limit block onto the front mold core with bolts to complete the fixation. The mold disassembly is the opposite.
[0020] Working principle of this solution: When the mold is opened, the ejector block is ejected by the ejection force of the return spring. After the ejection is in place, it is limited by the limit block. When the mold is closed, the ejector block is pressed back through the PL surface.
[0021] Compared with the prior art, this front mold ejector block structure instantaneously separates the sealant area through the improvement of the structure, effectively solves the wear problem in the spring head area, reduces the flash problem of the product, improves the product quality, reduces the waste of defective products, and at the same time reduces the later maintenance and servicing costs of the mold. Brief Description of the Drawings
[0022] Figure 1 is a schematic structural diagram of the prior art of the present utility model;
[0023] Figure 2 is a schematic structural diagram of the improved structure of the present utility model;
[0024] Figure 3 is a schematic three-dimensional structural diagram of the improved structure of the present utility model;
[0025] Figure 4 is the present utility model Figure 3 in a partial cross-sectional structural diagram.
[0026] In the figure: 1. Front mold core; 2. Rear mold core; 3. Return spring; 4. Ejector block; 5. Limit block; 6. Bolt; 7. Notch; 8. Inclined surface; 9. Ejection stroke groove; 10. PL surface; 11. A plate; 12. B plate; 13. Water inlet pipe; 14. Water outlet pipe; 15. Flow-through groove. Detailed Description of the Invention
[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0028] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a front mold ejector block structure, including a front mold core 1 and a rear mold core 2. The front mold core 1 is arranged in the A plate 11, and the rear mold core 2 is arranged in the B plate 12. A flow channel 15 is further provided in the front mold core 1. A water inlet pipe 13 communicated with the flow channel 15 is provided in the A plate 11, and a water outlet pipe 14 connected to the flow channel 15 is provided in the A plate 11. The flow channel 15 is close to the inner wall of the front mold core 1. The water inlet pipe 13 is arranged at one side position of the A plate 11, and the water outlet pipe 14 is arranged at the other side position of the A plate 11; the position of the water inlet pipe 13 is higher than the position of the water outlet pipe 14. A gap capable of forming a product is provided between the front mold core 1 and the rear mold core 2. An ejector block 4 is provided in the front mold core 1. The ejector block 4 can move up and down along the inside of the front mold core 1 and can contact the surface of the product. A limiting block 5 is provided in the front mold core 1. The limiting block 5 is arranged at the bottom end on the other side of the ejector block 4, and a top travel groove 9 is provided in the ejector block 4. One end of the limiting block 5 is located in the top travel groove 9. The limiting block 5 is used for limiting and adjusting the up and down displacement of the ejector block 4. The limiting block 5 is installed in the front mold core 1 through a bolt 6. A notch 7 adapted to the product is provided at the bottom end on one side of the ejector block 4. An inclined surface 8 connected to the notch 7 is provided on the side wall of the ejector block 4. The inclined surface 8 is located at the lower one-third of the side wall of the ejector block 4. The included angle between the inclined surface 8 and the straight line perpendicular to the side wall of the ejector block 4 is 5°. A return spring 3 which is elastically retractable and connected to the ejector block 4 is provided in the front mold core 1. The PL surface 10 of the rear mold core 2 can be used to push the ejector block 4 to reset.
[0029] In the description of this specification, terms such as "connection", "installation", "fixation", "setting", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or indirectly through an intermediate component without affecting the relationship between components and technical effects, or it can be an integral connection or a partial connection. In the case of this example, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model or the utility model can be understood according to specific circumstances.
[0030] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A front mold ejector block structure, comprising a front mold core (1) and a rear mold core (2), a gap capable of forming a product is provided between the front mold core (1) and the rear mold core (2), and it is characterized in that: A ejector block (4) is provided in the front mold core (1). The ejector block (4) can move up and down inside the front mold core (1) and can contact the surface of the product. A limiting block (5) is provided in the front mold core (1), and the limiting block (5) is used to limit and adjust the up and down displacement of the ejector block (4).
2. The front mold elastic block structure according to claim 1, characterized in that: A notch (7) adapted to the product is provided at the bottom end of one side of the ejector block (4), and an inclined surface (8) that can be connected to the notch (7) is provided on the side wall of the ejector block (4).
3. The front die elastic block structure according to claim 2, characterized in that: The inclined surface (8) is located at the lower one-third of the side wall of the ejector block (4).
4. A front mold ejector block structure according to claim 3, characterized in that: The included angle between the inclined surface (8) and the straight line perpendicular to the side wall of the ejector block (4) is 5°.
5. A front mold ejector block structure according to claim 4, characterized in that: A return spring (3) that is elastically retractable and connected to the ejector block (4) is provided in the front mold core (1).
6. A front mold elastic block structure according to claim 5, characterized in that: The limiting block (5) is provided at the bottom end of the other side of the ejector block (4), and a top travel groove (9) is provided in the ejector block (4). One end of the limiting block (5) is located in the top travel groove (9).
7. A front mold elastic block structure according to claim 6, characterized in that: The limiting block (5) is installed in the front mold core (1) by bolts (6).
8. A front mold ejector block structure according to claim 7, characterized in that: The PL surface (10) of the rear mold core (2) can be used to push the ejector block (4) to reset.
9. The front mold elastic block structure according to claim 8, characterized in that: The front mold core (1) is provided in the A plate (11), the rear mold core (2) is provided in the B plate (12), a flow channel (15) is further provided in the front mold core (1), a water inlet pipe (13) communicated with the flow channel (15) is provided in the A plate (11), and a water outlet pipe (14) connected to the flow channel (15) is provided in the A plate (11).
10. A front mold elastic block structure according to claim 9, characterized in that: The flow channel (15) is close to the inner wall of the front mold core (1). The water inlet pipe (13) is provided at one side position of the A plate (11), and the water outlet pipe (14) is provided at the other side position of the A plate (11); the position of the water inlet pipe (13) is higher than the position of the water outlet pipe (14).