Material taking improvement structure of injection mold

Abstract

The utility model discloses an injection mold material taking improvement structure which comprises an upper mold base and a lower mold base in press fit with the upper mold base, an upper mold core and a pouring structure penetrating through the upper mold base are arranged on the upper mold base, the upper mold core is arranged in the middle of the upper mold base, the pouring structure is located above the upper mold core, and a lower mold core corresponding to the upper mold core is arranged on the lower mold base. The upper mold core and the lower mold core are combined to form a cavity, a product is formed in the cavity, a top plate is arranged at the bottom of the lower mold base, a plurality of round ejector pins penetrating through the lower mold core, inclined ejection structures and flat ejector pins are fixedly installed on the top plate, the inclined ejection structures are matched with the cavity to be used for forming the product, the round ejector pins abut against the bottom of the product, and a plurality of grooves are formed in one end of the product. The injection mold is used for specific products, the round ejector pin, the inclined ejector structure and the flat ejector pin are combined for use, it is ensured that plastic products are ejected out in the vertical direction in the demolding process, the product quality is improved, the plastic products can be taken out through a mechanical arm, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an improved material handling structure for injection molds. Background Technology

[0002] Injection molds mainly consist of two parts: a moving mold and a fixed mold. The moving mold is mounted on the moving platen of the injection molding equipment, while the fixed mold is securely installed in the fixed platen position of the equipment. During injection molding, the moving and fixed molds close together to form the gating system and the space for molding the plastic product; during the mold opening stage, they separate to facilitate the removal of the completed plastic product.

[0003] However, with current technology, the device used to push the finished plastic parts out of the mold cannot effectively separate the ejection process from the complete release step. This causes the plastic product to stick to the angled ejector core, and the product will move at an angle with the angled ejector core during demolding, resulting in deformation of the plastic product. In addition, because the product is ejected at an angle, the ejection position of each product is different, which makes it impossible to use a robot to remove it. It can only be removed manually, which is inefficient. Utility Model Content

[0004] The purpose of this invention is to provide an improved material handling structure for injection molds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An improved material handling structure for injection molds includes an upper mold base and a lower mold base pressed against the upper mold base. The upper mold base has an upper mold core and a casting structure penetrating the upper mold base. The upper mold core is located in the middle of the upper mold base, and the casting structure is located above the upper mold core. The lower mold base has a lower mold core corresponding to the upper mold core. The upper mold core and the lower mold core merge to form a cavity, in which a product is formed. The bottom of the lower mold base has a top plate. Several round ejector pins, angled ejector structures, and flat ejector pins penetrating the lower mold core are fixedly installed on the top plate. The angled ejector structures cooperate with the cavity for product forming. The round ejector pins abut against the bottom of the product. Several grooves are formed at one end of the product, and the flat ejector pins abut against the ends of the grooves.

[0007] Furthermore, there are two inclined top structures, each of which includes an inclined top seat. A rolling shaft is rotatably connected to the inclined top seat, an inclined top rod is mounted on the rolling shaft, and an inclined top core is mounted on the inclined top rod. The inclined top core is located inside the cavity.

[0008] Further, a first forming groove for product forming and a second forming groove in a "convex" shape are provided on the inclined core head, and both side walls of the first forming groove and the second forming groove are slightly inclined outward from bottom to top.

[0009] Further, the lower mold base includes a lower template, support blocks are symmetrically provided on the lower template, the top plate is located between the two support blocks, a fixed module is installed on the support blocks, the lower mold core is located on top of the fixed module, support columns and sliding columns are provided on the lower template, and both the support columns and the sliding columns penetrate through the top plate and abut against the lower end surface of the fixed module.

[0010] Further, a main push rod is also provided on the top plate, the main push rod penetrates through the fixed module and abuts against the lower end surface of the upper mold base, and a spring is sleeved outside the main push rod.

[0011] Further, through holes are provided on the lower template.

[0012] Further, the pouring structure includes a pouring port provided at the top of the upper mold base, a pouring runner similar to a "worker" shape is provided below the pouring port, the pouring port is located at the center of the pouring runner, and diversion holes are provided at each end of the pouring runner, and the diversion holes penetrate through to the cavity.

[0013] Advantages of the present utility model: <000003?The material taking structure of the present utility model is used for specific products. By adopting dome pins, inclined core structures and flat dome pins to eject the products, a groove is provided at one end of the product, the end of the groove abuts against the flat dome pin, and the flat dome pin cooperates with the two side walls of the groove, which can effectively limit the movement of the product, ensure that the plastic product is ejected vertically during the demolding process, effectively avoid the product deformation problem caused by the product moving obliquely along with the inclined core structure, improve the product quality. At the same time, since the product is ejected along the same path each time, a manipulator can be used for automatic taking, greatly improving the production efficiency and reducing the dependence on manual operation.

[0015] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0016] Figure 1 : Overall structure diagram of the present utility model.

[0017] Figure 2 : Exploded view of the upper mold base, lower mold base and product of the present utility model Figure 1

[0018] Figure 3 Figure 2 : Exploded view of the upper mold base, lower mold base and product of the present utility model ​​

[0019] Figure 4 : Schematic diagram of the product support of this utility model.

[0020] Figure 5 : Schematic diagram of the sloping top structure of this utility model.

[0021] Figure 6 : Schematic diagram of the casting structure of this utility model.

[0022] Reference numerals: 1. Upper mold base; 2. Lower mold base; 3. Upper mold core; 4. Lower mold core; 5. Top plate; 6. Product; 11. Sprue; 12. Sprue runner; 13. Diverter hole; 51. Round ejector pin; 52. Angled ejector structure; 53. Flat ejector pin; 54. Main push rod; 55. Spring; 61. Groove; 521. Angled ejector seat; 522. Rolling shaft; 523. Angled ejector rod; 524. Angled ejector core head; 525. Forming groove one; 526. Forming groove two; 21. Lower mold plate; 22. Support block; 23. Fixed module; 24. Support column; 25. Sliding column. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please refer to Figure 1-6 ;

[0025] An improved material ejection structure for injection molds includes an upper mold base 1 and a lower mold base 2 pressed against the upper mold base 1. The upper mold base 1 has an upper mold core 3 and a casting structure penetrating the upper mold core 3. The upper mold core 3 is located in the middle of the upper mold base 1, and the casting structure is located above the upper mold core 3. The casting structure is used to inject plastic raw materials. The lower mold base 2 has a lower mold core 4 corresponding to the upper mold core 3. The upper mold core 3 and the lower mold core 4 are combined to form a cavity, in which a product 6 is formed. The bottom of the lower mold base 2 has a top plate 5. Several round ejector pins 51, angled ejector structures 52, and flat ejector pins 53 penetrating the lower mold core 3 are fixedly installed on the top plate 5, all for ejecting the product 6. The angled ejector structure 52... The molded part 51 is used to form the product 6 in conjunction with the cavity. The round pin 51 abuts against the bottom of the product 6. Several grooves 61 are formed at one end of the product 6. The flat pin 53 abuts against the end of the groove 61. The cooperation between the flat pin 53 and the two side walls of the groove 61 can effectively restrict the movement of the product 6, so that the product 6 can only be ejected in the vertical direction. This prevents the product 6 from moving with the inclined ejector structure 52 during the ejection process, which would cause deformation of the product 6 and improve the quality of the product. In addition, since the product 6 is ejected along the same vertical path each time, it can be automatically removed by a robot, which not only improves production efficiency but also reduces the dependence on manual operation.

[0026] Specifically, the plastic raw material is injected into the cavity formed by the upper mold core 3 and the lower mold core 4 through the pouring structure on the upper mold base 1. As the raw material cools and solidifies, the product 6 is formed. Next, in the ejection stage, the top plate 5 pushes the dome pins 51, the inclined ejector structure 52, and the flat ejector pins 53 upward, thereby vertically ejecting the product 6.

[0027] In this embodiment, there are two inclined ejector structures 52. Both of the two inclined ejector structures 52 include an inclined ejector base 521. A rolling shaft 522 is rotatably connected to the inclined ejector base 521. An inclined ejector rod 523 is installed on the rolling shaft 522. An inclined ejector core head 524 is installed on the inclined ejector rod 523. The inclined ejector core head 524 is located inside the cavity, and the inclined ejector core head 524 can swing around the inclined ejector base 521 to adjust the angle.

[0028] In the previous embodiment, the inclined ejector core head 524 is provided with a forming groove 525 for forming the product 6 and a forming groove 526 in a "convex" shape. The two side walls of the forming groove 525 and the forming groove 526 are slightly inclined outward from bottom to top, which helps to simplify the demolding process of the product 6 because the slight inclination of the side walls can reduce the friction between the finished product and the mold surface, making it easier to take out the product 6 from the mold and reducing the risk of damage or deformation of the product 6 caused by difficult demolding.

[0029] In this embodiment, the lower mold base 2 includes a lower template 21. Support blocks 22 are symmetrically provided on the lower template 21. The top plate 5 is located between the two support blocks 22. A fixed module 23 is installed on the support blocks 22. The lower mold core 4 is located on the top of the fixed module 23. Support columns 24 and slide columns 25 are provided on the lower template 21. The support column 24 abuts against the lower end surface of the fixed module 23 to guide the up and down movement of the top plate 5 and ensure its smooth movement. The slide column 25 passes through the fixed module 23 and can position the fixed module 23 during installation.

[0030] In the previous embodiment, a main push rod 54 is further provided on the top plate 5. The main push rod 54 penetrates through the fixed module 23 and abuts against the lower end surface of the upper mold base 1. When the top plate 5 is pushed upward, the main push rod 54 also rises, thereby pushing the upper mold base 1 upward to separate the lower mold base 2 from the upper mold base 1. A spring 55 is sleeved outside the main push rod 54, and the spring 55's resilience is used to automatically reset the top plate 5.

[0031] In the previous embodiment, a through hole is provided on the lower template 21, and the injection molding machine pushes up the top plate 5 through the through hole on the lower template 21.

[0032] In this embodiment, the casting structure includes a casting port 11 located at the top of the upper mold base 1. Below the casting port 11, there is a casting channel 12 in the shape of an "I". The casting port 11 is located at the center of the casting channel 12. Each end of the casting channel 12 is provided with a diversion hole 13. The diversion hole 13 extends into the cavity. The injection molding material flows from both sides to the center in the cavity, ensuring that the plastic material can be evenly distributed in the cavity, thereby improving the injection molding efficiency and product quality, and reducing molding defects.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A material handling improvement structure for injection molds, comprising an upper mold base (1) and a lower mold base (2) pressed against the upper mold base (1), characterized in that, On the upper mold base (1), there are an upper mold core (3) and a pouring structure penetrating the upper mold base (1). The upper mold core (3) is arranged in the middle of the upper mold base (1), and the pouring structure is located above the upper mold core (3). On the lower mold base (2), there is a lower mold core (4) corresponding to the upper mold core (3). The upper mold core (3) and the lower mold core (4) are combined to form a cavity, and a product (6) is formed in the cavity. At the bottom of the lower mold base (2), there is a top plate (5). On the top plate (5), several dome pins (51), a lifter structure (52), and flat pins (53) penetrating the lower mold core (4) are fixedly installed. The lifter structure (52) cooperates with the cavity for the formation of the product (6). The dome pin (51) abuts against the bottom of the product (6). At one end of the product (6), several grooves (61) are formed, and the flat pin (53) abuts against the end of the groove (61).

2. The improved material handling structure for injection molds according to claim 1, characterized in that, There are two lifter structures (52). Each of the two lifter structures (52) includes a lifter base (521). A rolling shaft (522) is rotatably connected to the lifter base (521). A lifter rod (523) is installed on the rolling shaft (522). A lifter core head (524) is installed on the lifter rod (523). The lifter core head (524) is located inside the cavity.

3. The improved material handling structure for injection molds according to claim 2, characterized in that, On the lifter core head (524), there is a first forming groove (525) for the formation of the product (6) and a second forming groove (526) in a "convex" shape. The two side walls of the first forming groove (525) and the second forming groove (526) are slightly inclined outward from bottom to top.

4. The improved material handling structure for injection molds according to claim 1, characterized in that, The lower mold base (2) includes a lower template (21). On the lower template (21), support blocks (22) are symmetrically arranged. The top plate (5) is located between the two support blocks (22). A fixed module (2:3) is installed on the support block (22). The lower mold core (4) is located on the top of the fixed module (23). On the lower template (21), there are support columns (24) and slide columns (25). The support column (24) abuts against the lower end face of the fixed module (23). The slide column (25) penetrates into the fixed module (23).

5. The improved material handling structure for injection molds according to claim 4, characterized in that, On the top plate (5), there is also a main push rod (54). The main push rod (54) penetrates the fixed module (23) and abuts against the lower end face of the upper mold base (1). A spring (55) is sleeved outside the main push rod (54).

6. The improved material handling structure for injection molds according to claim 5, characterized in that, There is a through hole on the lower template (21).

7. The improved material handling structure for injection molds according to claim 1, characterized in that, The pouring structure includes a pouring port (11) arranged on the top of the upper mold base (1). Below the pouring port (11), there is a pouring runner (12) similar to the shape of the Chinese character "工". The pouring port (11) is located at the center of the pouring runner (12). Each end of the pouring runner (12) is provided with a split hole (13), and the split hole (13) penetrates into the cavity.

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