Metal and plastic composite injection mold

Abstract

The utility model discloses a metal plastic composite injection mold, which relates to the technical field of injection molds, and comprises an upper connecting plate, a plurality of groups of ejector pin grooves positioned in the middle of a lower mold plate and distributed in an array; according to the metal and plastic composite injection mold, the ejector pin driving structure is arranged in the lower connecting plate, when the ejector pin body is subjected to demolding, the output ends of the four sets of driving push rods drive the ejector plate to ascend, meanwhile, the base and the ejector pin body are driven to ascend along the interior of the ejector pin groove, and finally a formed product is ejected out; and in the lifting process of the ejector plate, the guide hole is driven to slide along the outer side of the guide rod, so that the product is automatically demolded, an external driving mechanism is not needed to eject the ejector pin main body, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a metal-plastic composite injection mold. Background Art

[0002] Injection molds are tools used to produce plastic products. They also give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure through an injection molding machine, and then cooling and solidifying it to obtain a molded product.

[0003] Existing metal and plastic injection molding requires operation through the injection mold. However, when the internally molded product is demolded, the ejector pin needs to be lifted by an external mechanism to demold the product through the ejector pin. The ejector pin cannot be driven automatically and needs to be operated by an external mechanism. Therefore, the utility model proposes a metal-plastic composite injection mold. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a metal-plastic composite injection mold, which solves the problems in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A metal-plastic composite injection mold, including an upper connecting plate, and also including:

[0006] Ejector pin grooves, the ejector pin grooves are located in the middle of the lower template, and the number of the ejector pin grooves is several groups and distributed in an array;

[0007] The ejector drive structure includes an ejector body, a base connected to the bottom of the ejector body, a ejector plate and a driving push rod arranged at the bottom of the base, a fixed seat connected to the bottom of the driving push rod, a guide hole opened in the middle of the ejector plate, a guide rod connected to the middle of the ejector plate, a limit block arranged at the upper end of the guide rod, and a control circuit board and a battery arranged inside the lower connecting plate.

[0008] Furthermore, a metal-plastic composite injection mold further includes:

[0009] An upper template, the upper template is located at the bottom of the upper connecting plate, and the bottom of the upper template is connected to the lower template, and the bottom of the lower template is connected to the lower connecting plate;

[0010] The bottom plate is connected to the lower connecting plate, and a pin driving structure is provided inside the lower connecting plate.

[0011] Furthermore, a metal-plastic composite injection mold further includes:

[0012] An injection molding port, wherein the injection molding port is connected to the upper end of the upper connecting plate, and a mounting bolt is provided between the injection molding port and the upper connecting plate;

[0013] The injection molding cavity is located in the gap between the upper mold plate and the lower mold plate.

[0014] Furthermore, the ejector body and the base are fixedly connected, the ejector body and the ejector groove are adapted to each other, and the base and the ejector plate are connected.

[0015] Furthermore, the driving push rods are connected to the lower connecting plate via a fixing seat, the number of the driving push rods is four and they are distributed in an array, and the output ends of the driving push rods are connected to the top plate.

[0016] Furthermore, the guide hole passes through the middle of the top plate, the guide rod and the limit block are fixedly connected, the guide rod and the guide hole are adapted to each other, the control circuit board and the battery are electrically connected, and the drive push rod and the control circuit board are electrically connected.

[0017] Compared with the above background technology, the metal-plastic composite injection mold provided in this application includes an upper mold plate, a lower mold plate, an ejector groove and an ejector drive structure. In order to realize automatic demolding of the product, the output end of the driving push rod drives the ejector plate, the base and the ejector body to be pushed up along the inside of the ejector groove, thereby automatically demolding the product without the need for an external drive mechanism for demolding.

[0018] The utility model provides a metal-plastic composite injection mold. Compared with the existing technology, it has the following advantages:

[0019] A metal-plastic composite injection mold has an ejector drive structure arranged inside a lower connecting plate. When the ejector body is demolded, the output ends of four sets of drive push rods drive the ejector plate to rise, and at the same time drive the base and the ejector body to rise along the inside of the ejector groove, finally ejecting the molded product. During the rise of the ejector plate, the guide hole is driven to slide along the outer side of the guide rod, playing a guiding role, thereby automatically demolding the product. No external drive mechanism is required to push up the ejector body, thereby improving its demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a metal-plastic composite injection mold;

[0021] Figure 2 A top view of a metal-plastic composite injection mold;

[0022] Figure 3 A metal-plastic composite injection mold Figure 2 Side cross-sectional view of middle AA;

[0023] Figure 4 A metal-plastic composite injection mold Figure 3 A magnified view of center.

[0024] In the figure: 1. Upper connecting plate; 2. Upper template; 3. Lower template; 4. Lower connecting plate; 5. Bottom plate; 6. Injection port; 7. Mounting bolt; 8. Injection cavity; 9. Ejector slot; 10. Ejector drive structure; 101. Ejector body; 102. Base; 103. Drive push rod; 104. Fixed seat; 105. Ejector plate; 106. Guide hole; 107. Guide rod; 108. Limit block; 109. Control circuit board; 1010. Battery. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution for a metal-plastic composite injection mold: a metal-plastic composite injection mold, comprising an upper connecting plate 1, and also comprising: an ejector groove 9, the ejector groove 9 being located in the middle of a lower template 3, and the number of the ejector grooves 9 being several groups and distributed in an array; an ejector drive structure 10, the ejector drive structure 10 comprising an ejector body 101, a base 102 connected to the bottom of the ejector body 101, a top plate 105 and a driving push rod 103 provided at the bottom of the base 102, a fixing seat 104 connected to the bottom of the driving push rod 103, a guide hole 106 opened in the middle of the top plate 105, a guide rod 107 connected to the middle of the top plate 105, a limit block 108 provided at the upper end of the guide rod 107, and a control circuit board 109 and a battery 1010 provided inside the lower connecting plate 4.

[0027] Among them, the upper template 2 is located at the bottom of the upper connecting plate 1, and the bottom of the upper template 2 is connected to the lower template 3, the bottom of the lower template 3 is connected to the lower connecting plate 4, the bottom plate 5 is connected to the lower connecting plate 4, and the lower connecting plate 4 is provided with a pin drive structure 10 inside the lower connecting plate 4, the injection port 6 and the upper end of the upper connecting plate 1, and a mounting bolt 7 is provided between the injection port 6 and the upper connecting plate 1, and the injection cavity 8 is located in the gap between the upper template 2 and the lower template 3, which is conducive to the injection molding of metal plastics.

[0028] In addition, the ejector body 101 is fixedly connected to the base 102, the ejector body 101 is adapted to the ejector groove 9, the base 102 is connected to the top plate 105, the driving push rod 103 is connected to the lower connecting plate 4 through the fixing seat 104, the number of driving push rods 103 is four and they are distributed in an array, the output end of the driving push rod 103 is connected to the top plate 105, the guide hole 106 runs through the middle of the top plate 105, the guide rod 107 and the limit block 108 are fixedly connected, the guide rod 107 and the guide hole 106 are adapted, the control circuit board 109 and the battery 1010 are electrically connected, and the driving push rod 103 and the control circuit board 109 are electrically connected, which is conducive to driving the top plate 105 and the ejector body 101 to rise along the inside of the ejector groove 9, thereby demolding the molded product.

[0029] During the use of the metal-plastic composite injection mold, the molten metal or plastic is poured into the interior of the upper template 2 from the injection port 6, and finally formed through the injection cavity 8. The upper connecting plate 1 and the upper template 2 are removed and finally ejected and demolded by the ejector drive structure 10.

[0030] It should be noted that, through the setting of the ejector drive structure 10, when the ejector body 101 is demolded, the output ends of the four sets of driving push rods 103 drive the ejector plate 105 to rise, and at the same time drive the base 102 and the ejector body 101 to rise along the inside of the ejector groove 9, and finally eject the molded product. During the rising process of the ejector plate 105, the guide hole 106 is driven to slide along the outer side of the guide rod 107, playing a guiding role, thereby automatically demolding the product without the need for an external driving mechanism to push up the ejector body 101.

Claims

1. A metal-plastic composite injection mold, comprising an upper connecting plate (1), characterized in that: Also includes: Ejector grooves (9), the ejector grooves (9) are located in the middle of the lower template (3), and the ejector grooves (9) are arranged in a plurality of groups and are distributed in an array; A pin drive structure (10) includes a pin body (101), a base (102) connected to the bottom of the pin body (101), a top plate (105) and a driving push rod (103) arranged at the bottom of the base (102), a fixing seat (104) connected to the bottom of the driving push rod (103), a guide hole (106) opened in the middle of the top plate (105), a guide rod (107) connected to the middle of the top plate (105), a limit block (108) arranged at the upper end of the guide rod (107), and a control circuit board (109) and a battery (1010) arranged inside the lower connecting plate (4).

2. The metal-plastic composite injection mold according to claim 1, characterized in that: Also includes: An upper template (2), the upper template (2) being located at the bottom of the upper connecting plate (1), the bottom of the upper template (2) being connected to a lower template (3), and the bottom of the lower template (3) being connected to a lower connecting plate (4); A bottom plate (5) is connected to a lower connecting plate (4), and a pin drive structure (10) is provided inside the lower connecting plate (4).

3. The metal-plastic composite injection mold according to claim 1, characterized in that: Also includes: An injection molding port (6), the injection molding port (6) and the upper end of the upper connecting plate (1), and a mounting bolt (7) is provided between the injection molding port (6) and the upper connecting plate (1); An injection molding cavity (8), wherein the injection molding cavity (8) is located in the gap between the upper mold plate (2) and the lower mold plate (3).

4. The metal-plastic composite injection mold according to claim 1, characterized in that: The ejector body (101) and the base (102) are fixedly connected, the ejector body (101) and the ejector groove (9) are adapted to each other, and the base (102) and the ejector plate (105) are connected.

5. The metal-plastic composite injection mold according to claim 1, characterized in that: The driving push rods (103) are connected to the lower connecting plate (4) via a fixing seat (104). The number of the driving push rods (103) is four and they are distributed in an array. The output ends of the driving push rods (103) are connected to the top plate (105).

6. The metal-plastic composite injection mold according to claim 1, characterized in that: The guide hole (106) passes through the middle of the top plate (105), the guide rod (107) and the limit block (108) are fixedly connected, the guide rod (107) and the guide hole (106) are adapted to each other, the control circuit board (109) and the battery (1010) are electrically connected, and the drive push rod (103) and the control circuit board (109) are electrically connected.

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