Injection mold facilitating material taking

Abstract

The injection mold comprises a bottom plate, the bottom of the bottom plate is fixedly connected with a supporting rod, the upper end of the bottom plate is fixedly connected with four ejector rods which are evenly distributed, the tops of the ejector rods are fixedly connected with a top plate, and the top of the top plate is fixedly connected with a hydraulic cylinder. The output end of the hydraulic cylinder is slidably connected with the top plate, the lower end of the output end of the hydraulic cylinder is fixedly connected with an upper die, the lower end of the upper die makes contact with a lower die, and the lower die is fixedly connected with the bottom plate. According to the utility model, through the design of the guide rod, the guide effect can be achieved in the die assembly process of the upper die and the lower die, the guide rod can press the pressing block downwards to extrude the spring when moving downwards, and after a product is formed, the connecting plate in the lower die can be jacked under the elastic action of the spring after the upper die and the lower die are separated, so that the die assembly is finished. And a formed product can be ejected out of the lower die through the connecting plate, so that the formed product is convenient to take.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold which is convenient for taking out materials. Background Art

[0002] The injection mold can form parts with complex shapes, and injection molding is suitable for mass production and molding processing fields such as complex-shaped products. The utility model patent with the patent authorization announcement number CN211763091U discloses an injection mold for an injection molding machine, including a template seat and an upper template, the top of the template seat is equipped with a lower template and two drive motors, the drive motors are located on both sides of the lower template, a cavity is provided at the top center of the lower template, the output ends of the two drive motors are connected to a rotating shaft, one end of the rotating shaft is welded with a stainless steel screw, a discharge port is provided at the top center of the upper template, and a threaded hole is provided on the screw hole seat, and the two stainless steel screws are respectively threadedly connected to the two threaded holes; the utility model has a simple structure, and the two drive motors can respectively drive the two rotating shafts to rotate at a uniform speed, thereby rotating the two stainless steel screws, so that the upper template moves downward at a uniform speed, avoiding the upper template from causing impact on the lower template and causing damage, and at the same time, the upper template is tightly pressed on the lower template, and there will be no offset phenomenon during injection molding, thereby improving the processing quality.

[0003] In the above prior art, when the injection mold is used, after the product is molded, it is inconvenient to manually take the product out because the product is inside the mold. Therefore, improvement is needed. Utility Model Content

[0004] The utility model aims to provide an injection mold which is convenient for taking out materials, thereby solving the problem that it is inconvenient to take out materials of the molded product in the mold.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold that is convenient for material removal, comprising a base plate, the bottom of the base plate is fixedly connected to a support rod, the upper end of the base plate is fixedly connected to four evenly distributed push rods, the top of the push rods is fixedly connected to the top plate, the top of the top plate is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is slidably connected to the top plate, the lower end of the output end of the hydraulic cylinder is fixedly connected to an upper mold, the lower end of the upper mold contacts a lower mold, the lower mold is fixedly connected to the base plate, the interior of the lower mold is slidably connected to a connecting plate, the lower mold is provided with a material return mechanism, and the lower mold is provided with an ejection mechanism.

[0006] Preferably, the number of the support rods is four, and the four support rods are evenly distributed at the lower end of the bottom plate. By designing the support rods, the overall structure can be supported.

[0007] Preferably, a through slot is provided inside the top plate, and the output end of the hydraulic cylinder is slidably connected inside the through slot. By designing the through slot, the output end of the hydraulic cylinder can slide inside the top plate.

[0008] Preferably, the material-removing mechanism comprises a guide rod, the lower end of the upper die is fixedly connected with two symmetrically distributed guide rods, the guide rods are slidably connected with the lower die, the bottom of the guide rods contacts a pressing block, the pressing block is slidably connected with the lower die, the inside of the pressing block is slidably sleeved with a fixed rod, the fixed rod is fixedly connected with the lower die, a spring is arranged on the outside of the fixed rod, the top of the pressing block away from the guide rods is fixedly connected with a connecting rod, the connecting rod is slidably connected with the lower die, and the connecting rod is fixedly connected with the connecting plate. By designing the material-removing mechanism, the removal of the molded product is facilitated.

[0009] Preferably, one end of the spring is fixedly connected to the pressing block, and the other end of the spring is fixedly connected to the lower die. The spring is designed so that the force of the spring can act on the pressing block.

[0010] Preferably, the ejection mechanism includes a connecting strip, the lower end of the connecting plate contacts the connecting strip, the right end of the connecting strip is fixedly connected to a plurality of evenly distributed teeth, the right end of the teeth is meshed with a gear, the gear is rotatably connected to the lower mold through a bearing, the front end of the gear is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the lower mold, the rotating shaft is rotatably connected to the bottom plate through a damping shaft, and the front end of the rotating shaft is fixedly connected to a handle. By designing the ejection mechanism, the molded product can be assisted in removal.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can play a guiding role in the process of closing the upper mold and the lower mold by designing the function of the guide rod, and when the guide rod moves downward, it will squeeze the spring by pressing the pressing block downward. After the product is formed, the upper mold and the lower mold are separated and the connecting plate inside the lower mold can be lifted under the elastic action of the spring, and the molded product can be pushed out of the lower mold through the connecting plate, which is convenient for taking out the molded product.

[0013] 2. The utility model designs the meshing of gears and teeth. When the handle is turned to drive the shaft to rotate, the gears can rotate, and then the connecting strip can move vertically. The connecting strip can drive the top plate to be lifted, and then it can also drive the connecting plate to remove materials, solving the problem that the spring cannot eject the connecting plate when the product sticks to the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A front cross-sectional view of the roof structure;

[0016] Figure 3 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure of the bottom plate;

[0017] Figure 4 For this utility model Figure 3 Enlarged view of point A.

[0018] In the figure: 1, bottom plate; 2, support rod; 3, push rod; 4, top plate; 5, hydraulic cylinder; 6, through groove; 8, material withdrawal mechanism; 9, ejection mechanism; 10, upper die; 11, lower die; 12, connecting plate; 81, guide rod; 82, pressure block; 83, fixing rod; 84, spring; 85, connecting rod; 91, connecting strip; 92, teeth; 93, gear; 94, rotating shaft; 95, turning handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 3 , an injection mold for easy material removal, including a bottom plate 1, a support rod 2 is fixedly connected to the bottom of the bottom plate 1, the number of the support rods 2 is four, and the four support rods 2 are evenly distributed at the lower end of the bottom plate 1. By designing the support rods 2, the overall structure can be supported, and the upper end of the bottom plate 1 is fixedly connected to four evenly distributed push rods 3, and the top of the push rods 3 is fixedly connected to the top of the top plate 4, and the top of the top plate 4 is fixedly connected to a hydraulic cylinder 5, and the output end of the hydraulic cylinder 5 is slidably connected to the top plate 4, and a through groove 6 is provided inside the top plate 4, and the output end of the hydraulic cylinder 5 is slidably connected to the inside of the through groove 6. By designing the through groove 6, the output end of the hydraulic cylinder 5 can slide in the top plate 4, and the lower end of the output end of the hydraulic cylinder 5 is fixedly connected to an upper mold 10, and the lower end of the upper mold 10 contacts a lower mold 11, and the lower mold 11 is fixedly connected to the bottom plate 1, and the lower mold 11 is slidably connected to a connecting plate 12, and a material withdrawal mechanism 8 is provided on the lower mold 11, and an ejection mechanism 9 is provided on the lower mold 11.

[0021] See also Figure 1 , Figure 3 , Figure 4The material-removing mechanism 8 includes a guide rod 81. The lower end of the upper mold 10 is fixedly connected to two symmetrically distributed guide rods 81. The guide rod 81 is slidably connected to the lower mold 11. The bottom of the guide rod 81 contacts a pressure block 82. The pressure block 82 is slidably connected to the lower mold 11. The inner sliding sleeve of the pressure block 82 is provided with a fixed rod 83. The fixed rod 83 is fixedly connected to the lower mold 11. A spring 84 is arranged on the outer side of the fixed rod 83. One end of the spring 84 is fixedly connected to the pressure block 82, and the other end of the spring 84 is fixedly connected to the lower mold 11. By designing the spring 84, the force of the spring 84 can act on the pressure block 82. A connecting rod 85 is fixedly connected to the top of the side of the pressure block 82 away from the guide rod 81. The connecting rod 85 is slidably connected to the lower mold 11, and the connecting rod 85 is fixedly connected to the connecting plate 12. By designing the material-removing mechanism 8, the removal of the molded product is convenient.

[0022] See also Figure 1 , Figure 3 The ejection mechanism 9 includes a connecting strip 91, the lower end of the connecting plate 12 contacts the connecting strip 91, the right end of the connecting strip 91 is fixedly connected to a plurality of evenly distributed teeth 92, the right end of the teeth 92 is meshed with a gear 93, the gear 93 is rotatably connected to the lower mold 11 through a bearing, the front end of the gear 93 is fixedly connected to a rotating shaft 94, the rotating shaft 94 is rotatably connected to the lower mold 11, the rotating shaft 94 is rotatably connected to the bottom plate 1 through a damping shaft, and the front end of the rotating shaft 94 is fixedly connected to a turning handle 95. By designing the ejection mechanism 9, the molded product can be assisted in being taken out.

[0023] The specific implementation process of the utility model is as follows: when in use, the output end of the hydraulic cylinder 5 drives the upper mold 10 to move downward, and the upper mold 10 drives the guide rod 81 to move downward. The guide rod 81 will be inserted into the lower mold 11 first, and the guide rod 81 presses the pressing block 82 downward to move. The pressing block 82 slides along the fixed rod 83, and the pressing block 82 squeezes the spring 84. At the same time, the pressing block 82 drives the connecting rod 85 and the connecting plate 12 to move downward. At this time, the upper mold 10 and the lower mold 11 are in contact to complete the mold closing, and injection molding can be performed. When the injection molding is completed, the upper mold 10 is reset under the drive of the hydraulic cylinder 5. At this time, the elastic action of the spring 84 will give the pressing block 82 an upward thrust. The pressing block 82 drives the connecting rod 85 and the connecting plate 12 to move upward, and the molded product can be ejected from the lower mold 11 through the connecting plate 12, which is convenient for taking the molded product. When the product adheres to the lower mold 11, the elastic force of the spring 84 is not enough to lift the connecting plate 12. At this time, the handle 95 is turned, and the handle 95 drives the rotating shaft 94 and the gear 93 to rotate. The engagement of the gear 93 with the teeth 92 can realize the vertical movement of the connecting strip 91. The connecting strip 91 can drive the connecting plate 12 to be lifted, and then can also drive the connecting plate 12 to move up to take out the material, thereby solving the problem that the spring 84 cannot push out the connecting plate 12 when the product adheres to the lower mold 11.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for easy material removal, comprising a bottom plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to a support rod (2), the upper end of the base plate (1) is fixedly connected to four evenly distributed push rods (3), the top of the push rods (3) is fixedly connected to a top plate (4), the top of the top plate (4) is fixedly connected to a hydraulic cylinder (5), the output end of the hydraulic cylinder (5) is slidably connected to the top plate (4), the lower end of the output end of the hydraulic cylinder (5) is fixedly connected to an upper mold (10), the lower end of the upper mold (10) contacts a lower mold (11), the lower mold (11) is fixedly connected to the base plate (1), the interior of the lower mold (11) is slidably connected to a connecting plate (12), the lower mold (11) is provided with a material return mechanism (8), and the lower mold (11) is provided with an ejection mechanism (9).

2. The injection mold for easy material removal according to claim 1, characterized in that: The number of the support rods (2) is four, and the four support rods (2) are evenly distributed at the lower end of the bottom plate (1).

3. The injection mold for easy material removal according to claim 1, characterized in that: A through groove (6) is provided inside the top plate (4), and the output end of the hydraulic cylinder (5) is slidably connected inside the through groove (6).

4. The injection mold for easy material removal according to claim 1, characterized in that: The material-returning mechanism (8) comprises a guide rod (81), the lower end of the upper die (10) is fixedly connected with two symmetrically distributed guide rods (81), the guide rods (81) are slidably connected to the lower die (11), the bottom of the guide rod (81) contacts with a pressure block (82), the pressure block (82) is slidably connected to the lower die (11), the interior of the pressure block (82) is slidably sleeved with a fixed rod (83), the fixed rod (83) is fixedly connected to the lower die (11), a spring (84) is arranged on the outer side of the fixed rod (83), a connecting rod (85) is fixedly connected to the top of the side of the pressure block (82) away from the guide rod (81), the connecting rod (85) is slidably connected to the lower die (11), and the connecting rod (85) is fixedly connected to the connecting plate (12).

5. The injection mold for easy material removal according to claim 4, characterized in that: One end of the spring (84) is fixedly connected to the pressing block (82), and the other end of the spring (84) is fixedly connected to the lower mold (11).

6. The injection mold for easy material removal according to claim 1, characterized in that: The ejection mechanism (9) comprises a connecting strip (91), the lower end of the connecting plate (12) contacts the connecting strip (91), the right end of the connecting strip (91) is fixedly connected to a plurality of evenly distributed teeth (92), the right end of the teeth (92) is meshed with a gear (93), the gear (93) is rotatably connected to the lower mold (11) via a bearing, the front end of the gear (93) is fixedly connected to a rotating shaft (94), the rotating shaft (94) is rotatably connected to the lower mold (11), the rotating shaft (94) is rotatably connected to the bottom plate (1) via a damping shaft, and the front end of the rotating shaft (94) is fixedly connected to a turning handle (95).

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