High-efficiency plastic bucket injection mold

Abstract

The high-efficiency plastic bucket injection mold comprises an upper mold body and a lower mold body, a limiting ring is fixedly installed in the middle of the outer surface of the upper end of the upper mold body, a sprue is arranged at the lower end of the limiting ring, a material channel is formed in the lower portion of the sprue, and an upper mold cavity is formed in the outer surface of the lower end of the upper mold body; and pin holes are formed in the four corners of the outer surface of the lower end of the upper mold, the material channel communicates with the upper mold cavity, a cooling pipe is fixedly installed on the inner wall of the upper mold, a lower mold core is fixedly installed in the middle of the outer surface of the upper end of the lower mold, a hollow cavity is formed in the lower mold core, and a material returning assembly is fixedly installed in the hollow cavity. According to the high-efficiency plastic bucket injection mold disclosed by the utility model, the inner wall of the lower mold core can be heated through the arranged heater, so that materials can be conveniently heated, the flowability of the materials is ensured, the production quality is improved, and the plastic bucket can be conveniently discharged through the arranged electric telescopic rod.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic barrel production, in particular to a high-efficiency plastic barrel injection mold. Background Art

[0002] When producing plastic barrels, they need to be produced through injection molding.

[0003] Due to the long length of the plastic barrel, the injection channel is long. When the material with high temperature moves in the channel, the temperature will gradually decrease as the heat is lost, resulting in worse material fluidity, affecting the quality of injection molding; and the adhesion of the plastic barrel fixed mold is large, which is not convenient for unloading. For this reason, we propose a high-efficiency plastic barrel injection mold. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a high-efficiency plastic barrel injection mold, which can ensure the fluidity of materials moving in the material channel and facilitate material unloading, and can effectively solve the problems in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-efficiency plastic barrel injection mold, comprising an upper mold and a lower mold, a limiting ring is fixedly installed in the middle of the upper end outer surface of the upper mold, a nozzle is arranged at the lower end of the limiting ring, and a material channel is arranged at the lower part of the nozzle, an upper mold cavity is opened on the lower end outer surface of the upper mold, pin holes are opened at the four corners of the lower end outer surface of the upper mold, the material channel is connected with the upper mold cavity, a cooling pipe is fixedly installed on the inner wall of the upper mold, a lower mold core is fixedly installed in the middle of the upper end outer surface of the lower mold, a hollow cavity is opened inside the lower mold core, a material return assembly is fixedly installed in the hollow cavity, a heater is fixedly installed on the inner wall of the lower mold core, and positioning pins are fixedly installed at the four corners of the upper end outer surface of the lower mold, and the material return assembly comprises an electric telescopic rod, a mounting plate and an ejector rod, and the electric telescopic rod is fixedly installed in the middle of the heater.

[0008] Preferably, the cooling pipe is externally connected to a condensing water circulation device.

[0009] Preferably, the lower mold core and the upper mold cavity are plug-in connected, and the positioning pin and the pin hole are plug-in connected.

[0010] Preferably, the heater and the electric telescopic rod are both externally connected to a controller.

[0011] Preferably, the pinhole is opened on the upper outer surface of the lower mold core, the upper outer surface of the electric telescopic rod is fixedly connected to the middle of the lower outer surface of the mounting plate, and the ejector rod is fixedly mounted on the upper outer surface of the mounting plate.

[0012] Preferably, the outer wall of the ejector rod is slidably connected to the needle hole.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a high-efficiency plastic bucket injection mold, which has the following beneficial effects:

[0015] 1. This high-efficiency plastic barrel injection mold can heat the inner wall of the lower mold core through the set heater, which is convenient for heating the material, ensuring the fluidity of the material and improving the production quality.

[0016] 2. This high-efficiency plastic barrel injection mold is convenient for unloading plastic barrels through the electric telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of a high-efficiency plastic barrel injection mold.

[0018] Figure 2 The utility model is a schematic structural diagram of an upper mold in a high-efficiency plastic barrel injection mold.

[0019] Figure 3 The utility model is a schematic structural diagram of a lower mold in a high-efficiency plastic barrel injection mold.

[0020] Figure 4 The utility model is a top view of a mounting plate and an ejector rod in a high-efficiency plastic barrel injection mold.

[0021] In the figure: 1. upper mold; 2. lower mold; 3. limit ring; 4. nozzle; 5. material channel; 6. lower mold core; 7. hollow cavity; 8. material withdrawal assembly; 9. pin hole; 10. upper mold cavity; 11. cooling tube; 12. heater; 13. positioning pin; 14. electric telescopic rod; 15. mounting plate; 16. ejector rod; 17. pinhole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] This embodiment is a high-efficiency plastic barrel injection mold.

[0024] like Figure 1-4As shown, it includes an upper mold 1 and a lower mold 2, a limiting ring 3 is fixedly installed in the middle of the upper outer surface of the upper mold 1, a nozzle 4 is provided at the lower end of the limiting ring 3, and a material channel 5 is provided at the lower part of the nozzle 4, an upper mold cavity 10 is opened on the lower outer surface of the upper mold 1, pin holes 9 are opened at the four corners of the lower outer surface of the upper mold 1, the material channel 5 is connected with the upper mold cavity 10, a cooling pipe 11 is fixedly installed on the inner wall of the upper mold 1, a lower mold core 6 is fixedly installed in the middle of the upper outer surface of the lower mold 2, a hollow cavity 7 is opened inside the lower mold core 6, a material stripping assembly 8 is fixedly installed in the hollow cavity 7, a heater 12 is fixedly installed on the inner wall of the lower mold core 6, and positioning pins 13 are fixedly installed at the four corners of the upper outer surface of the lower mold 2. The material stripping assembly 8 includes an electric telescopic rod 14, a mounting plate 15 and an ejector rod 16, and the electric telescopic rod 14 is fixedly installed in the middle of the heater 12.

[0025] The cooling pipe 11 is externally connected to a condensing water circulation device; the lower mold core 6 and the upper mold cavity 10 are plugged in, and the positioning pin 13 and the pin hole 9 are plugged in; the heater 12 and the electric telescopic rod 14 are both externally connected to a controller; the pinhole 17 is opened on the upper outer surface of the lower mold core 6, the upper outer surface of the electric telescopic rod 14 is fixedly connected to the middle of the lower outer surface of the mounting plate 15, and the ejector rod 16 is fixedly installed on the upper outer surface of the mounting plate 15; the outer wall of the ejector rod 16 and the pinhole 17 are slidably connected.

[0026] It should be noted that the utility model is a high-efficiency plastic bucket injection mold. After the upper mold 1 and the lower mold 2 are molded together, the upper end outer surface of the ejector rod 16 is located in the pinhole 17, and the external material is injected into the material channel 5 through the nozzle 4. The material is guided by the material channel 5. At this time, the heater 12 is started, and the material can be heated by the heater 12 to ensure the fluidity of the material and improve the quality of plastic bucket injection molding; the cooling pipe 11 is externally connected to a condensed water circulation device, and the condensed water flows inside the cooling pipe 11 to facilitate cooling the workpiece. After the upper mold 1 and the lower mold 2 are separated, the operation of the electric telescopic rod 14 drives the mounting plate 15 and the ejector rod 16 to rise, and the ejector rod 16 moves along the pinhole 17. The ejector rod 16 drives the plastic bucket to move, so that the plastic bucket is separated from the lower mold core 6, and then the electric telescopic rod 14 drives the ejector rod 16 to reset, so that the upper end of the ejector rod 16 enters the pinhole 17. At this time, the plastic bucket is separated from the ejector rod 16, which is convenient for unloading.

[0027] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A high-efficiency plastic barrel injection mold, comprising an upper mold (1) and a lower mold (2), wherein a limit ring (3) is fixedly installed in the middle of the upper outer surface of the upper end of the upper mold (1), a nozzle (4) is arranged at the lower end of the limit ring (3), and a material channel (5) is arranged at the lower part of the nozzle (4), characterized in that: An upper mold cavity (10) is provided on the outer surface of the lower end of the upper mold (1), pin holes (9) are provided at four corners of the outer surface of the lower end of the upper mold (1), the material channel (5) is connected to the upper mold cavity (10), a cooling pipe (11) is fixedly installed on the inner wall of the upper mold (1), a lower mold core (6) is fixedly installed in the middle of the upper outer surface of the lower mold (2), a hollow cavity (7) is provided inside the lower mold core (6), a material return assembly (8) is fixedly installed in the hollow cavity (7), a heater (12) is fixedly installed on the inner wall of the lower mold core (6), and positioning pins (13) are fixedly installed at the four corners of the upper outer surface of the lower mold (2), and the material return assembly (8) includes an electric telescopic rod (14), a mounting plate (15) and an ejector rod (16), and the electric telescopic rod (14) is fixedly installed in the middle of the heater (12).

2. The high-efficiency plastic barrel injection mold according to claim 1, characterized in that: The cooling pipe (11) is externally connected to a condensing water circulation device.

3. The high-efficiency plastic barrel injection mold according to claim 2, characterized in that: The lower mold core (6) and the upper mold cavity (10) are plugged together, and the positioning pin (13) and the pin hole (9) are plugged together.

4. The high-efficiency plastic barrel injection mold according to claim 3, characterized in that: The heater (12) and the electric telescopic rod (14) are both connected to an external controller.

5. The high-efficiency plastic barrel injection mold according to claim 4, characterized in that: The pinhole (17) is formed on the upper outer surface of the lower mold core (6), the upper outer surface of the electric telescopic rod (14) is fixedly connected to the middle of the lower outer surface of the mounting plate (15), and the ejector rod (16) is fixedly mounted on the upper outer surface of the mounting plate (15).

6. The high-efficiency plastic barrel injection mold according to claim 5, characterized in that: The outer wall of the ejector rod (16) and the needle hole (17) are slidably connected.

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