Injection mold with mold taking-out structure

Abstract

The utility model discloses an injection mold with a mold taking-out structure, which comprises a bottom plate, an upper mold, a lower mold and an ejector pin, a base is fixedly arranged above the bottom plate, the upper mold is arranged below the top plate, a groove is arranged above the base, the lower mold is arranged in the groove, and the ejector pin is arranged in the groove. A reciprocating lead screw is fixedly connected to the top of the second bevel gear, a lifting plate is arranged on the reciprocating lead screw, and an ejector pin is fixedly installed above the lifting plate. Through the arrangement of the ejector pin, the ejector pin can automatically eject a product out of the lower die, compared with manual piece taking, the ejector pin can more accurately and stably eject the product out, the defects of product deformation, scratching and the like caused by improper operation are avoided, the quality and the appearance of the product are protected, automatic operation is achieved through automatic ejection of the ejector pin, and the production efficiency is improved. Manual participation is reduced, the time and labor intensity of manual workpiece taking are greatly reduced, and therefore the production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a mold taking-out structure. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] After the injection molding is completed, the product is in a completely fitted state in the existing injection mold, which is not convenient for quick demolding. For example, the injection mold disclosed in the announcement number CN218985564U does not have a ejection mechanism to realize the ejection of the molded product. The product needs to be removed from the mold manually or with other tools. However, improper operation may cause the product to be deformed, scratched or damaged, affecting the product quality. For large or complex injection molded parts, manual removal may be more difficult and may even require the cooperation of multiple people to complete, increasing the complexity and difficulty of the operation.

[0004] Therefore, it is necessary to invent an injection mold with a mold removal structure to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an injection mold with a mold taking-out structure to solve the problem of inconvenient material taking-out in the technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold with a mold removal structure, comprising a bottom plate, an upper mold, a lower mold and an ejector pin, a base is fixedly installed above the bottom plate, electric telescopic rods are arranged on the left and right sides of the base, a top plate is fixedly installed on the top of the electric telescopic rod, an injection port is opened at the center of the top of the top plate, an upper mold is arranged below the top plate, a groove is opened above the base, a lower mold is arranged inside the groove, the side walls on the left and right sides of the base are hingedly connected to a limit plate, a fixing bolt is penetrated and connected on the limit plate, a driving motor is arranged below the base, a No. 1 bevel gear is connected to the output end of the driving motor, a No. 2 bevel gear is meshed and connected above the No. 1 bevel gear, a reciprocating screw is fixedly connected to the top of the No. 2 bevel gear, a lifting plate is arranged on the reciprocating screw, and an ejector pin is fixedly installed above the lifting plate.

[0007] Preferably, four electric telescopic rods are provided, the bottom ends of the four electric telescopic rods are connected to the bottom plate, and the top ends of the four electric telescopic rods are connected to the top plate, so that the electric telescopic rods can drive the top plate and the upper mold to close and open the mold.

[0008] Preferably, the lower mold is arranged directly below the upper mold, and the center lines of the injection port, the upper mold and the lower mold coincide with each other, so that the injection liquid introduced into the injection port can flow into the lower mold accurately.

[0009] Preferably, plug blocks are fixedly installed on the side walls on the left and right sides of the lower mold, and slots are provided at the contact positions between the base and the plug blocks. The plug blocks and the slots are snap-fitted and connected, and fixing bolts are threadedly connected on the plug blocks, so that the plug blocks and the slots are easy to snap-fit ​​and disassemble the lower mold.

[0010] Preferably, screw holes are provided at the contact positions of the insert block, the base and the fixing bolt, the fixing bolt and the screw hole are threadedly connected, the outer wall thread of the fixing bolt matches the inner wall thread of the screw hole, two fixing bolts are provided, and the two fixing bolts are symmetrical with respect to the center of the lower mold, so that the fixing bolt and the screw hole can ensure the stability of the lower mold installed on the base.

[0011] Preferably, the reciprocating screw and the lifting plate are threadedly connected, and guide plates are fixedly installed on the side walls on the left and right sides of the lifting plate, so that the lifting plate can be slid up and down on the reciprocating screw to ensure stable movement of the lifting plate on the reciprocating screw.

[0012] Preferably, a guide rod is provided through the guide plate, the bottom of the guide rod is fixedly mounted on the bottom plate, the top of the guide rod is fixedly mounted on the base, and the guide plate and the guide rod are slidably connected, so that the guide plate and the guide rod enhance the stability of the sliding and lifting of the lifting plate.

[0013] Preferably, a plurality of ejector pins are provided, and the plurality of ejector pins are evenly distributed in a rectangular shape. The plurality of ejector pins are slidably connected to the base and the lower mold. The top ends of the plurality of ejector pins are flush with the inner bottom end of the lower mold, so that the ejector pins can eject the product inside the lower mold, thereby facilitating the removal of the product.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Through the setting of the ejector, the ejector can automatically eject the product from the lower mold. Compared with manual removal, the ejector can eject the product more accurately and smoothly, avoiding defects such as product deformation and scratches caused by improper operation, protecting the quality and appearance of the product. In addition, the automatic ejection of the ejector realizes automated operation, reduces manual participation, greatly reduces the time and labor intensity of manual removal, and thus significantly improves production efficiency;

[0016] 2. Through the setting of the plug block, the slot fixing bolts and the screw holes, the plug block and the slot engagement and disassembly method makes the installation and disassembly of the lower mold simple and quick. The operator only needs to accurately align the plug block with the slot engagement to achieve the installation and positioning of the lower mold. The cooperation of the fixing bolts and the screw holes further strengthens the connection between the lower mold and the base, making the maintenance of the lower mold more convenient and quick, which not only shortens the maintenance time, but also reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the groove and the lower mold of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the driving motor of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the reciprocating screw and the lifting plate of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the lower mold and the ejector pin of the utility model.

[0022] Description of reference numerals:

[0023] 1. Bottom plate; 2. Base; 3. Electric telescopic rod; 4. Top plate; 5. Injection port; 6. Upper mold; 7. Groove; 8. Lower mold; 9. Insert block; 10. Slot; 11. Limit plate; 12. Fixing bolt; 13. Screw hole; 14. Drive motor; 15. No. 1 bevel gear; 16. No. 2 bevel gear; 17. Reciprocating screw; 18. Lifting plate; 19. Guide plate; 20. Guide rod; 21. Ejector pin. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-5The injection mold with a mold removal structure shown in the figure comprises a bottom plate 1, a base 2 is fixedly installed above the bottom plate 1, electric telescopic rods 3 are arranged on the left and right sides of the base 2, a top plate 4 is fixedly installed on the top of the electric telescopic rod 3, four electric telescopic rods 3 are arranged, the bottom ends of the four electric telescopic rods 3 are connected to the bottom plate 1, the top ends of the four electric telescopic rods 3 are connected to the top plate 4, an injection port 5 is opened at the center of the top of the top plate 4, an upper mold 6 is arranged below the top plate 4, and a groove 7 is opened above the base 2 A lower mold 8 is arranged inside the groove 7, and the side walls on the left and right sides of the base 2 are hingedly connected with a limit plate 11, and a fixing bolt 12 is penetrated and connected to the limit plate 11. A driving motor 14 is arranged below the base 2, and the output end of the driving motor 14 is connected to a first bevel gear 15, and a second bevel gear 16 is meshed and connected above the first bevel gear 15. A reciprocating screw 17 is fixedly connected to the top of the second bevel gear 16, and a lifting plate 18 is arranged on the reciprocating screw 17, and a top pin 21 is fixedly installed above the lifting plate 18.

[0026] In one aspect of the present embodiment, the lower mold 8 is arranged directly below the upper mold 6, the center lines of the injection port 5, the upper mold 6 and the lower mold 8 coincide with each other, plug blocks 9 are fixedly installed on the side walls on the left and right sides of the lower mold 8, a slot 10 is provided at the contact position between the base 2 and the plug block 9, the plug block 9 and the slot 10 are snap-fitted, a fixing bolt 12 is threadedly connected on the plug block 9, a screw hole 13 is provided at the contact position between the plug block 9, the base 2 and the fixing bolt 12, the fixing bolt 12 and the screw hole 13 are threadedly connected, the outer wall thread of the fixing bolt 12 matches the inner wall thread of the screw hole 13, and the fixing bolt 12 is arranged There are two, and the two fixing bolts 12 are symmetrical with respect to the center of the lower mold 8. The reciprocating screw 17 and the lifting plate 18 are threadedly connected. Guide plates 19 are fixedly installed on the side walls on the left and right sides of the lifting plate 18. A guide rod 20 is penetrated by the guide plate 19. The bottom of the guide rod 20 is fixedly installed on the bottom plate 1, and the top of the guide rod 20 is fixedly installed on the base 2. There is a sliding connection between the guide plate 19 and the guide rod 20. There are multiple ejector pins 21, and the multiple ejector pins 21 are equidistantly distributed in a rectangular shape. The multiple ejector pins 21 are slidably connected to the base 2 and the lower mold 8, and the top ends of the multiple ejector pins 21 are flush with the inner bottom end of the lower mold 8.

[0027] Working principle of this utility model:

[0028] Refer to the instruction manual Figure 1-5 When using the utility model, the injection mold is first stably placed at a suitable position through the bottom plate 1, and then the feed pipe of the injection molding machine is connected to the injection port 5, and then the power is turned on, so that the electric telescopic rod 3 can drive the top plate 4 and the upper mold 6 to descend to close the mold with the lower mold 8, thereby opening the injection molding machine, so that the injection solution is poured into the lower mold 8 through the injection port 5 for cooling and molding;

[0029] After the product is formed, the upper mold 6 and the lower mold 8 are opened by the electric telescopic rod 3, and then the drive motor 14 is started. The drive motor 14 drives the first bevel gear 15 and the second bevel gear 16 to rotate, and then the second bevel gear 16 drives the reciprocating screw 17 to rotate synchronously, so that the lifting plate 18 can drive multiple ejectors 21 to move upward at the same time, so that multiple ejectors 21 can eject the products formed inside the lower mold 8 to take out the material. However, when the lower mold 8 needs to be cleaned and maintained, the two fixing bolts 12 can be loosened in turn to make the fixing bolts 12 disengage from the screw hole 13, and finally the plug block 9 of the lower mold 8 can be pulled out of the slot 10 to realize the rapid disassembly of the lower mold 8, and the operation is simple and convenient.

Claims

1. An injection mold with a mold removal structure, comprising a base plate (1), an upper mold (6), a lower mold (8) and an ejector pin (21), characterized in that: A base (2) is fixedly mounted above the bottom plate (1), electric telescopic rods (3) are arranged on the left and right sides of the base (2), a top plate (4) is fixedly mounted on the top of the electric telescopic rod (3), an injection port (5) is provided at the center of the top of the top plate (4), an upper mold (6) is arranged below the top plate (4), a groove (7) is provided above the base (2), a lower mold (8) is arranged inside the groove (7), and side walls on the left and right sides of the base (2) are hingedly connected to limit plates (11) A fixing bolt (12) is connected through the limit plate (11), a driving motor (14) is arranged below the base (2), an output end of the driving motor (14) is connected to a first bevel gear (15), a second bevel gear (16) is meshedly connected above the first bevel gear (15), a reciprocating screw (17) is fixedly connected to the top of the second bevel gear (16), a lifting plate (18) is arranged on the reciprocating screw (17), and a top pin (21) is fixedly installed above the lifting plate (18).

2. The injection mold with a mold removal structure according to claim 1, characterized in that: Four electric telescopic rods (3) are provided, the bottom ends of the four electric telescopic rods (3) are connected to the bottom plate (1), and the top ends of the four electric telescopic rods (3) are connected to the top plate (4).

3. The injection mold with a mold removal structure according to claim 1, characterized in that: The lower mold (8) is arranged directly below the upper mold (6), and the center lines of the injection port (5), the upper mold (6) and the lower mold (8) coincide with each other.

4. The injection mold with a mold removal structure according to claim 3, characterized in that: Insert blocks (9) are fixedly mounted on the side walls on the left and right sides of the lower mold (8); a slot (10) is provided at the contact position between the base (2) and the insert block (9); the insert block (9) and the slot (10) are snap-fitted together; and a fixing bolt (12) is threadedly connected to the insert block (9).

5. The injection mold with a mold removal structure according to claim 4, characterized in that: A screw hole (13) is provided at the contact position between the insert block (9), the base (2) and the fixing bolt (12); the fixing bolt (12) and the screw hole (13) are threadedly connected; the outer wall thread of the fixing bolt (12) matches the inner wall thread of the screw hole (13); two fixing bolts (12) are provided, and the two fixing bolts (12) are symmetrical with respect to the center of the lower mold (8).

6. The injection mold with a mold removal structure according to claim 1, characterized in that: The reciprocating screw (17) and the lifting plate (18) are threadedly connected, and guide plates (19) are fixedly mounted on the side walls on the left and right sides of the lifting plate (18).

7. The injection mold with a mold removal structure according to claim 6, characterized in that: A guide rod (20) is provided through the guide plate (19); the bottom of the guide rod (20) is fixedly mounted on the bottom plate (1); the top of the guide rod (20) is fixedly mounted on the base (2); and the guide plate (19) and the guide rod (20) are slidably connected.

8. The injection mold with a mold removal structure according to claim 1, characterized in that: A plurality of ejector pins (21) are provided, and the plurality of ejector pins (21) are distributed equidistantly in a rectangular shape. The plurality of ejector pins (21) are slidably connected to the base (2) and the lower mold (8), and the top ends of the plurality of ejector pins (21) are flush with the inner bottom end of the lower mold (8).

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