Ejection structure of mold

Abstract

The utility model discloses an ejection structure of a mold, which comprises a lower mold plate, supporting seats are fixed on two sides of the top end of the lower mold plate, a lower mold is arranged at the top ends of the two supporting seats, an upper mold is arranged above the lower mold, the bottom end of the upper mold is contacted with the top end of the lower mold, and an upper mold plate is fixed at the top end of the upper mold. Strip-shaped limiting seats are installed on the outer walls of the two sides of the lower mold in a bolting mode, the inner walls of the lower ends of the strip-shaped limiting seats are connected with the outer wall of the lower mold plate, a base plate is installed at the position, between the supporting seats, of the top end of the lower mold plate, a second ejection plate is arranged above the base plate, and a first ejection plate is arranged above the second ejection plate. And first side U-shaped frames are mounted on the outer walls of the two sides of the first ejection plate. According to the utility model, not only is the stability of the ejection head during ejection movement ensured so as to ensure the ejection effect of the ejection structure on the formed workpieces, but also the aim of synchronously ejecting the two formed workpieces is achieved so as to ensure the stripping efficiency of the formed workpieces, and the convenience of the ejection structure during use is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically to an ejection structure for a mold. Background Technology

[0002] In the mold forming process, after the product is formed, it needs to be smoothly ejected from the mold cavity. The traditional ejection method is for personnel to use tools to remove the workpiece from the mold cavity. This method has a generally low ejection efficiency and high manual labor intensity. In order to improve these problems, it is particularly important to develop an ejection structure for the mold.

[0003] Referring to the ejection structure of a mold with announcement number CN203357823U, it includes an upper mold base, a lower mold base, a die cavity on the upper mold base, and a punch on the lower mold base. A guide post is provided between the upper and lower mold bases. Several ejector pins are provided inside the lower mold base. This ejection structure includes several connecting rods. The outer end of the connecting rod is hinged to the side wall of the lower mold base, the inner end is hinged to the guide post, and the middle part of the connecting rod is hinged to the ejector pin. This ejection structure has the advantages of low production cost and easy processing. As can be seen from the above, although this ejection structure can be well applied, it is usually not convenient to limit the movement range of the ejection components, making it difficult for the ejection structure to achieve the expected ejection effect on the workpiece, which often troubles users. Utility Model Content

[0004] The purpose of this utility model is to provide an ejection structure for a mold, so as to solve the problem that although the ejection structure proposed in the background art can be well applied, it is usually not convenient to limit the movement range of the ejection component, making it difficult for the ejection structure to achieve the expected ejection effect on the workpiece.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ejection structure for a mold, comprising a lower mold plate, with support seats fixed on both sides of the top of the lower mold plate, a lower mold at the top of the two support seats, an upper mold above the lower mold, the bottom end of the upper mold contacting the top of the lower mold, an upper template fixed to the top of the upper mold, and strip-shaped limiting seats bolted to the outer walls of both sides of the lower mold, the inner wall of the lower end of the strip-shaped limiting seats being connected to the outer wall of the lower mold plate, and the top of the lower mold plate between the support seats... A base plate is installed at one end, and a second ejector plate is provided above the base plate. A first ejector plate is provided above the second ejector plate. A first side U-shaped frame is installed on the outer walls of both sides of the first ejector plate. The first side U-shaped frame is slidably connected to the strip-shaped limiting seat. A second side U-shaped frame is installed on the outer walls of both sides of the second ejector plate. The second side U-shaped frame is slidably connected to the strip-shaped limiting seat. A lower mold base is provided at the center of the lower mold. Mold cavities are provided on both sides of the lower mold base. A molded workpiece is injection molded inside the mold cavity.

[0006] Preferably, two second guide posts are provided on both sides of the top of the substrate. The top of the second guide post passes through the substrate, the second ejector plate and the first ejector plate in sequence and is fixedly connected to the lower mold. The second guide post is movably connected to the first ejector plate and the second ejector plate. The second guide post is provided to limit the movement range of the ejector component.

[0007] Preferably, two first guide posts are provided on both sides of the top of the lower mold plate. The top of the first guide post passes through the base plate, the second ejector plate and the first ejector plate in sequence and is fixedly connected to the bottom of the lower mold. The first guide post is movably connected to the first ejector plate and the second ejector plate. The setting of the first guide post is to limit the movement range of the ejector component.

[0008] Preferably, a third guide post is provided on both sides of the top of the base plate on one side of the first guide post. The top of the third guide post passes through the second ejector plate and the first ejector plate in sequence and touches the bottom of the lower mold. The third guide post is movably connected to the first ejector plate and the second ejector plate. The setting of the third guide post is to limit the movement range of the ejector component.

[0009] Preferably, connecting frames are provided on both sides of the top of the second ejector plate. The top of the connecting frame passes through the first ejector plate and is provided with an ejector head. The top of the ejector head extends into the interior of the mold cavity. The connecting frame is fixedly connected to the first ejector plate. The ejector head is provided to eject the molded workpiece.

[0010] Preferably, a lifting cylinder is installed at the center of the substrate. The top of the lifting cylinder passes through the second ejector plate and is connected to the bottom of the first ejector plate. The lifting cylinder is used to drive the first ejector plate to move up and down.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the ejection structure of the mold not only ensures the stability of the ejection head during ejection movement to ensure the ejection effect of the ejection structure on the molded workpiece, but also achieves the purpose of simultaneously ejecting two molded workpieces to ensure the demolding efficiency of the molded workpiece, and improves the convenience of using the ejection structure.

[0012] (1) By setting the second guide post, the first guide post and the third guide post, the first ejector plate and the second ejector plate slide on the outer wall of the second guide post, the first guide post and the third guide post during the lifting and lowering process. At the same time, the first side U-shaped frame and the second side U-shaped frame installed on the outer wall of the first ejector plate and the second ejector plate slide up and down on the outer wall of the strip limit seat to limit the movement range of the first ejector plate and the second ejector plate. This can effectively reduce the phenomenon of deviation during the lifting and lowering of the ejector head, thereby ensuring the stability of the ejector head during the ejection movement, so as to ensure the ejection effect of the ejection structure on the formed workpiece.

[0013] (2) By setting the connecting frame, the first ejector plate and the second ejector plate are fixedly connected. Since there are two ejector heads installed at the top of the connecting frame, when the connecting frame moves upward, it drives the two ejector heads to eject the molded workpiece upward, so as to achieve the purpose of ejecting the two molded workpieces simultaneously, thereby ensuring the demolding efficiency of the molded workpiece.

[0014] (3) By setting up the lifting cylinder, the first ejector plate and the second ejector plate can be driven to move up and down, so as to drive the ejector head to perform lifting and ejection operations in an electric manner, thereby improving the convenience of using the ejection structure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 This is a top view of the lower mold structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the ejector head structure of this utility model.

[0019] In the diagram: 1. Lower template; 2. Support base; 3. Lower mold; 4. Upper mold; 5. Upper template; 6. Strip-shaped limiting seat; 7. First ejector plate; 8. Second ejector plate; 9. Base plate; 10. First side U-shaped frame; 11. Second side U-shaped frame; 12. Lifting cylinder; 13. First guide post; 14. Connecting frame; 15. Lower mold base; 16. Mold cavity; 17. Molded workpiece; 18. Ejector head; 19. Second guide post; 20. Third guide post. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 The present invention provides an embodiment of a mold ejection structure, including a lower template 1. Two first guide posts 13 are provided on both sides of the top of the lower template 1. The top of the first guide post 13 passes through the base plate 9, the second ejection plate 8 and the first ejection plate 7 in sequence and is fixedly connected to the bottom of the lower mold 3. The first guide post 13 is movably connected to the first ejection plate 7 and the second ejection plate 8.

[0022] In use, the first guide post 13 is set to limit the movement range of the ejector component;

[0023] The top of the substrate 9 on one side of the first guide post 13 is provided with a third guide post 20 on both sides. The top of the third guide post 20 passes through the second ejector plate 8 and the first ejector plate 7 in sequence and touches the bottom of the lower mold 3. The third guide post 20 is movably connected to the first ejector plate 7 and the second ejector plate 8.

[0024] In use, the third guide post 20 is set to limit the movement range of the ejector component;

[0025] Support seats 2 are fixed on both sides of the top of the lower template 1. The top of the two support seats 2 is provided with a lower mold 3. An upper mold 4 is provided above the lower mold 3. The bottom of the upper mold 4 touches the top of the lower mold 3. An upper template 5 is fixed on the top of the upper mold 4. Strip-shaped limiting seats 6 are bolted to the outer walls on both sides of the lower mold 3. The inner wall of the lower end of the strip-shaped limiting seat 6 is connected to the outer wall of the lower template 1. A base plate 9 is installed on the top of the lower template 1 between the support seats 2. A lifting cylinder 12 is installed at the center of the base plate 9. The top of the lifting cylinder 12 passes through the second ejector plate 8 and is connected to the bottom of the first ejector plate 7.

[0026] In use, the lifting cylinder 12 is set to drive the first top plate 7 to move up and down;

[0027] Two second guide posts 19 are provided on both sides of the top of the substrate 9. The top of the second guide post 19 passes through the substrate 9, the second ejector plate 8 and the first ejector plate 7 in sequence and is fixedly connected to the lower mold 3. The second guide post 19 is movably connected to the first ejector plate 7 and the second ejector plate 8.

[0028] In use, the second guide post 19 is used to limit the movement range of the ejector component;

[0029] A second ejector plate 8 is provided above the substrate 9. Connecting brackets 14 are provided on both sides of the top of the second ejector plate 8. The top of the connecting bracket 14 passes through the first ejector plate 7 and is provided with an ejector head 18. The top of the ejector head 18 extends into the interior of the mold cavity 16. The connecting bracket 14 is fixedly connected to the first ejector plate 7.

[0030] In use, the ejector head 18 is set up to eject the formed workpiece 17.

[0031] Above the second ejector plate 8 is a first ejector plate 7. A first side U-shaped frame 10 is installed on the outer walls of both sides of the first ejector plate 7. The first side U-shaped frame 10 is slidably connected to the strip-shaped limiting seat 6. A second side U-shaped frame 11 is installed on the outer walls of both sides of the second ejector plate 8. The second side U-shaped frame 11 is slidably connected to the strip-shaped limiting seat 6. A lower mold base 15 is provided at the center of the lower mold 3. Mold cavities 16 are provided on both sides of the lower mold base 15. The molded workpiece 17 is injection molded inside the mold cavity 16.

[0032] In this embodiment, the lifting cylinder 12 first drives the first ejector plate 7 and the second ejector plate 8 to move up and down, thus electrically driving the ejector head 18 to perform the lifting and ejection operation. Then, the connecting frame 14 is used to fix the first ejector plate 7 and the second ejector plate 8 together. Since two ejector heads 18 are installed at the top of the connecting frame 14, when the connecting frame 14 moves upward, it drives the two ejector heads 18 to eject the formed workpiece 17 upward, achieving the purpose of simultaneously ejecting the two formed workpieces 17. Finally, the second guide post 19, the first guide post 13, and the second guide post 18... The three guide pillars 20 allow the first ejector plate 7 and the second ejector plate 8 to slide along the outer walls of the second guide pillar 19, the first guide pillar 13, and the third guide pillar 20 during their lifting and lowering process. Simultaneously, the first side U-shaped frame 10 and the second side U-shaped frame 11 installed on the outer walls of the first ejector plate 7 and the second ejector plate 8 slide up and down along the outer wall of the strip-shaped limiting seat 6 to limit the movement range of the first ejector plate 7 and the second ejector plate 8. This effectively reduces the deviation that occurs during the lifting and lowering of the ejector head 18, ensuring the ejector head 18 effectively ejects the formed workpiece 17, thus completing the use of the ejector structure.

Claims

1. An ejection structure for a mold, characterized in that: The system includes a lower template (1), with support seats (2) fixed on both sides of the top of the lower template (1). A lower mold (3) is provided at the top of each of the two support seats (2). An upper mold (4) is provided above the lower mold (3), with the bottom of the upper mold (4) touching the top of the lower mold (3). An upper template (5) is fixed at the top of the upper mold (4). Strip-shaped limiting seats (6) are bolted to the outer walls on both sides of the lower mold (3). The inner wall of the lower end of the strip-shaped limiting seat (6) is connected to the outer wall of the lower template (1). A base plate (9) is installed at the top of the lower template (1) between the support seats (2). A second base plate (9) is provided above the base plate (9). Two ejector plates (8), with a first ejector plate (7) above the second ejector plate (8). A first side U-shaped frame (10) is installed on the outer walls of both sides of the first ejector plate (7). The first side U-shaped frame (10) is slidably connected to the strip-shaped limiting seat (6). A second side U-shaped frame (11) is installed on the outer walls of both sides of the second ejector plate (8). The second side U-shaped frame (11) is slidably connected to the strip-shaped limiting seat (6). A lower mold base (15) is provided at the center of the lower mold (3). Mold cavities (16) are provided on both sides of the lower mold base (15). A molded workpiece (17) is injection molded inside the mold cavity (16).

2. The ejection structure of a mold according to claim 1, characterized in that: Two second guide posts (19) are provided on both sides of the top of the substrate (9). The top of the second guide post (19) passes through the substrate (9), the second ejector plate (8) and the first ejector plate (7) in sequence and is fixedly connected to the lower mold (3). The second guide post (19) is movably connected to the first ejector plate (7) and the second ejector plate (8).

3. The ejection structure of a mold according to claim 1, characterized in that: Two first guide posts (13) are provided on both sides of the top of the lower template (1). The top of the first guide post (13) passes through the base plate (9), the second ejector plate (8) and the first ejector plate (7) in sequence and is fixedly connected to the bottom of the lower mold (3). The first guide post (13) is movably connected to the first ejector plate (7) and the second ejector plate (8).

4. The ejection structure of a mold according to claim 3, characterized in that: The top of the substrate (9) on one side of the first guide post (13) is provided with a third guide post (20). The top of the third guide post (20) passes through the second ejector plate (8) and the first ejector plate (7) in sequence and touches the bottom of the lower mold (3). The third guide post (20) is movably connected to the first ejector plate (7) and the second ejector plate (8).

5. The ejection structure of a mold according to claim 1, characterized in that: The second ejector plate (8) has connecting frames (14) on both sides of its top end. The top end of the connecting frame (14) passes through the first ejector plate (7) and has an ejector head (18). The top end of the ejector head (18) extends into the interior of the mold cavity (16). The connecting frame (14) is fixedly connected to the first ejector plate (7).

6. The ejection structure of a mold according to claim 1, characterized in that: A lifting cylinder (12) is installed at the center of the substrate (9). The top of the lifting cylinder (12) passes through the second ejector plate (8) and is connected to the bottom of the first ejector plate (7).

Images