GReen PE mold structure

Abstract

The utility model relates to a GReen PE mold structure which comprises a water tank and a top plate arranged at the top of the water tank. The top plate is connected with the water tank through four air cylinders; an upper mold and an injection port embedded in the upper mold are fixedly mounted at the bottom of the top plate through four connecting rods; a lower mold is installed at the bottom of the upper mold, a temperature control mechanism is installed between the bottom of the lower mold and the water tank, the upper mold and the lower mold are attached through the four air cylinders, when the lower mold is preheated, the two heaters are started to increase the water temperature in the water tank, and the water pump is started to enable heated water to enter a conveying pipe through a transfer pipe; the conveying pipe heats the bottom of the lower mold through the transfer plate according to the temperature of hot water, a Green PE material solution is injected into the lower mold through the injection port, when cooling is needed, the heater does not work, the semiconductor chilling plate refrigerates the interior of the water tank, and therefore cold water is conveyed to the transfer pipe, and finally the bottom of the lower mold is refrigerated.

Description

Technical Field

[0001] The utility model relates to the technical field of mold structure equipment, specifically to the GReen PE mold structure. Background Art

[0002] Green PE material is a green polymer prepared from biological raw materials such as sugarcane, which meets the definition of Green materials and the concept of sustainable development, and is used to replace materials such as petrochemical PE / PP. In the prior art, the temperature of the part is too high after demolding, and it deforms, bends or shrinks during the natural cooling process, and the injection molded part is insufficiently cooled. There is a lack of preheating treatment for the mold. When the mold temperature is low, the injected molten plastic cannot flow and distribute well in the mold cavity, resulting in insufficient filling and forming defects such as shrinkage holes and bubbles.

[0003] For example, a plastic toy injection mold disclosed in the authorized patent document with the application number CN202222888413.0 belongs to the field of molds, including a fixed mold. A plurality of guide posts are fixedly installed on the fixed mold, and a movable mold is movably installed on the guide posts. The other end of the guide post is fixedly installed with a fixed plate, and a fixed rod is fixedly installed on the fixed plate. A ejection mechanism is movably installed in the movable mold. The ejection mechanism includes an ejection chamber, a movable plate, a movable rod, an ejection pipe, a limiting rod, a storage chamber, an inner ejection rod, a first push plate, an inner guide rod, a second push plate, a pushing rod and a third push plate. By setting the ejection mechanism, through the extrusion of the third push plate by the fixed rod, the third push plate is made to push the movable plate to move forward together, and the inner ejection rod moves out of the ejection pipe partially, and the plastic toy is ejected forward. When the limiting rod contacts the ejection chamber, the inner ejection rod retracts into the ejection pipe, thereby demolding the plastic mold, so that the inner ejection rod does not adhere when ejecting the plastic toy, and the plastic toy is easier to demold.

[0004] The above patent has defects such as the temperature of the part is too high after demolding, it deforms, bends or shrinks during the natural cooling process, the injection molded part is insufficiently cooled, there is a lack of preheating treatment for the mold, when the mold temperature is low, the injected molten plastic cannot flow and distribute well in the mold cavity, resulting in insufficient filling and forming defects such as shrinkage holes and bubbles. Therefore, we need to provide a GReen PE mold structure. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a GReen PE mold structure. By using four cylinders to fit the upper mold and the lower mold together, when preheating the lower mold, two heaters are started to increase the water temperature in the water tank, and a water pump is started to send the heated water into the delivery pipe through the transfer pipe. The delivery pipe transfers the hot water temperature to the bottom of the lower mold through the transfer plate, and injects the Green PE material solution into the lower mold through the injection port. When cooling is required, the heaters do not work, and the semiconductor refrigeration sheet cools the water in the water tank, so as to send the cold water to the transfer pipe and finally cool the bottom of the lower mold, solving the problems raised in the above background technology.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A GReen PE mold structure, including:

[0007] A water tank and a top plate arranged on the top of the water tank;

[0008] The top plate is connected to the water tank through four cylinders;

[0009] The bottom of the top plate is fixedly installed with an upper mold through four connecting rods, and an injection port embedded inside the upper mold;

[0010] The bottom of the upper mold is provided with a lower mold, and a temperature control mechanism is installed between the bottom of the lower mold and the water tank;

[0011] The temperature control mechanism includes a support frame arranged on the top of the water tank. Inside the support frame, a conveying member for the water circulation in the water tank is installed. A frame body is opened on the top of the water tank, and a semiconductor refrigeration sheet is installed inside the frame body. The refrigerating surface of the semiconductor refrigeration sheet is located inside the water tank, and two heaters are installed on one side of the inner wall of the water tank.

[0012] Preferably, the conveying member includes a delivery pipe, a transfer pipe and a water pump. The transfer pipe is installed inside the support frame. One side of the transfer pipe is communicated with the delivery pipe. The lower end of the delivery pipe is located below the liquid level in the water tank. The bottom of the other end of the transfer pipe penetrates through the top of the inner wall of the water tank, and a water pump is communicated inside the delivery pipe.

[0013] Preferably, a transfer plate is embedded on the top of the support frame, the top of the transfer plate is attached to the bottom of the lower mold, and a water inlet pipe and a drain valve pipe are arranged on the surface of the water tank.

[0014] Preferably, a heat dissipation fin is installed on the heating surface at the top of the semiconductor refrigeration sheet.

[0015] Preferably, the lower end of the delivery pipe is communicated with a filter.

[0016] Preferably, it further includes a spiral stirring member for the water circulation in the water tank. The spiral stirring member includes a motor and a spiral stirring paddle. One side of the inner wall of the water tank is rotatably installed with the spiral stirring paddle, and one end of the spiral stirring paddle is installed with the motor.

[0017] Preferably, a filtering sleeve is installed at the top of the water inlet pipe, and an intercepting net part is arranged at the bottom of the filtering sleeve.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model uses four cylinders to fit the upper mold and the lower mold. When preheating the lower mold, two heaters are started to increase the water temperature in the water tank, and a water pump is started to send the heated water into the conveying pipe through the transfer pipe. The conveying pipe transfers the hot water temperature to heat the bottom of the lower mold through the transfer plate, and injects the Green PE material solution into the lower mold through the injection port. When cooling is required, the heaters do not work, and the semiconductor refrigeration sheet cools the water in the water tank, so as to send the cold water into the transfer pipe, and finally cool the bottom of the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a three-dimensional structural sectional view of the present utility model;

[0022] Figure 3 is the structure of the present utility model Figure 1 partial enlarged schematic diagram at A in;

[0023] Figure 4 is a three-dimensional structural sectional view of the present utility model;

[0024] Figure 5 is a three-dimensional structural sectional view of the present utility model.

[0025] In the figure: 1. Water tank; 2. Top plate; 3. Cylinder; 4. Upper mold; 5. Injection port; 6. Lower mold; 7. Temperature control mechanism; 71. Support frame; 72. Frame body; 73. Semiconductor refrigeration sheet; 74. Heater; 70. Conveying member; 701. Conveying pipe; 702. Transfer pipe; 703. Water pump; 8. Transfer plate; 9. Water inlet pipe; 10. Drain valve pipe; 11. Heat dissipation fin; 12. Filter; 13. Spiral stirring member; 131. Motor; 132. Spiral stirring paddle; 14. Filtering sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-5 , the present invention provides a technical solution: a GReen PE mold structure, including:

[0028] A water tank 1, and a top plate 2 provided on the top of the water tank 1;

[0029] The top plate 2 is connected to the water tank 1 by four cylinders 3;

[0030] At the bottom of the top plate 2, an upper mold 4 is fixedly installed through four connecting rods, and an injection port 5 is embedded inside the upper mold 4;

[0031] The bottom of the upper mold 4 is provided with a lower mold 6, and a temperature control mechanism 7 is installed between the bottom of the lower mold 6 and the water tank 1;

[0032] The temperature control mechanism 7 includes a support frame 71 provided on the top of the water tank 1. Inside the support frame 71, a conveying member 70 for the water flow in the water tank 1 is installed. On the top of the water tank 1, a frame body 72 is opened. Inside the frame body 72, a semiconductor refrigeration sheet 73 is installed. The refrigerating surface of the semiconductor refrigeration sheet 73 is located inside the water tank 1. On one side of the inner wall of the water tank 1, two heaters 74 are installed.

[0033] The conveying member 70 includes a conveying pipe 701, a transfer pipe 702, and a water pump 703. Inside the support frame 71, a transfer pipe 702 is installed. One side of the transfer pipe 702 is communicated with a conveying pipe 701. The lower end of the conveying pipe 701 is located below the liquid level in the water tank 1. The bottom of the other end of the transfer pipe 702 penetrates through the top of the inner wall of the water tank 1. Inside the conveying pipe 701, a water pump 703 is communicated;

[0034] In this embodiment, the four cylinders 3 are synchronous cylinders 3. When using the four cylinders 3 to fit the upper mold 4 and the lower mold 6 and preheating the lower mold 6, start the two heaters 74 to increase the water temperature in the water tank 1, and start the water pump 703 to make the heated water enter the conveying pipe 701 through the transfer pipe 702. The conveying pipe 701 heats the bottom of the lower mold 6 through the transfer plate 8, and injects the Green PE material solution into the lower mold 6 through the injection port 5. When cooling is required, the heaters 74 do not work, and the semiconductor refrigeration sheet 73 cools the water in the water tank 1, so as to convey the cold water to the transfer pipe 702, and finally cool the bottom of the lower mold 6.

[0035] At the top of the support frame 71, there is an embedded transfer plate 8. The top of the transfer plate 8 is in contact with the bottom of the lower mold 6. On the surface of the water tank 1, there is a water inlet pipe 9 and a drain valve pipe 10.

[0036] Specifically, the transfer plate 8 is set as a heat-conducting plate, which can quickly transfer the temperature of the transfer pipe 702 to the lower mold 6. The water inlet pipe 9 is set to facilitate water injection, and the drain valve pipe 10 discharges the water in the water tank 1. The water inlet pipe 9 is not sealed to avoid damage caused by the air pressure in the water tank 1 not being connected to the outside.

[0037] On the heating surface at the top of the semiconductor refrigeration sheet 73, there is a heat dissipation fin 11 installed.

[0038] Furthermore, the heat dissipation fin 11 is set as a copper plate and installed on the heating surface of the semiconductor refrigeration sheet 73, so as to ensure the normal operation of the semiconductor refrigeration sheet 73.

[0039] In order to prevent sundries in the water tank 1 from entering the water pump 703 and reducing the service life of the water pump 703, the lower end of the delivery pipe 701 is connected to a filter 12.

[0040] It also includes a spiral stirring member 13 for the water circulation in the water tank 1. The spiral stirring member 13 includes a motor 131 and a spiral stirring paddle 132. One side of the inner wall of the water tank 1 is rotatably installed with the spiral stirring paddle 132, and one end of the spiral stirring paddle 132 is installed with a motor 131.

[0041] It should be noted that when the motor 131 is started to drive the spiral stirring paddle 132 at the output end to rotate, the water in the water tank 1 is quickly circulated, avoiding uneven water temperature in the water tank 1 and resulting in poor preheating or refrigeration effects.

[0042] At the top of the water inlet pipe 9, there is a filter sleeve 14 installed. At the bottom of the filter sleeve 14, there is an interception net part.

[0043] Specifically, the filter sleeve 14 with an interception net part is set at the top of the water inlet pipe 9 to avoid sundries falling into the water tank 1.

[0044] This device uses four cylinders 3 to fit the upper mold 4 and the lower mold 6 together. When preheating the lower mold 6, two heaters 74 are started to increase the water temperature in the water tank 1, and the water pump 703 is started to pump the heated water into the delivery pipe 701 through the transfer pipe 702. The delivery pipe 701 transfers the hot water temperature to the bottom of the lower mold 6 through the transfer plate 8, and injects the Green PE material solution into the lower mold 6 through the injection port 5. When cooling is required, the heaters 74 do not work, and the semiconductor refrigeration sheet 73 cools the water in the water tank 1, so as to deliver the cold water to the transfer pipe 702 and finally cool the bottom of the lower mold 6.

[0045] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. The structure of the GReen PE mold, characterized in that, Including: A water tank (1), and a top plate (2) arranged on the top of the water tank (1); The top plate (2) is connected to the water tank (1) by four cylinders (3); A top die (4) is fixedly installed at the bottom of the top plate (2) through four connecting rods, and an injection port (5) is embedded inside the top die (4); A bottom die (6) is installed at the bottom of the top die (4), and a temperature control mechanism (7) is installed between the bottom of the bottom die (6) and the water tank (1); The temperature control mechanism (7) includes a support frame (71) arranged on the top of the water tank (1), a conveying member (70) for the water flow in the water tank (1) is installed inside the support frame (71), a frame body (72) is opened on the top of the water tank (1), a semiconductor refrigeration sheet (73) is installed inside the frame body (72), the refrigerating surface of the semiconductor refrigeration sheet (73) is located inside the water tank (1), and two heaters (74) are installed on one side of the inner wall of the water tank (1).

2. The GReen PE mold structure according to claim 1, characterized in that: The conveying member (70) includes a conveying pipe (701), a transfer pipe (702) and a water pump (703), the transfer pipe (702) is installed inside the support frame (71), one side of the transfer pipe (702) is communicated with the conveying pipe (701), the lower end of the conveying pipe (701) is located below the liquid level in the water tank (1), the bottom of the other end of the transfer pipe (702) penetrates through the top of the inner wall of the water tank (1), and a water pump (703) is communicated inside the conveying pipe (701).

3. The GReen PE mold structure according to claim 2, wherein: A transfer plate (8) is embedded on the top of the support frame (71), the top of the transfer plate (8) is attached to the bottom of the bottom die (6), and a water inlet pipe (9) and a drain valve pipe (10) are arranged on the surface of the water tank (1).

4. The GReen PE mold structure according to claim 1, characterized in that: A heat dissipation fin plate (11) is installed on the heating surface at the top of the semiconductor refrigeration sheet (73).

5. The GReen PE mold structure according to claim 2, characterized in that: The lower end of the conveying pipe (701) is communicated with a filter (12).

6. The GReen PE mold structure according to claim 1, characterized in that: It further includes a spiral stirring member (13) for the water flow in the water tank (1), the spiral stirring member (13) includes a motor (131) and a spiral stirring paddle (132), the spiral stirring paddle (132) is rotatably installed on one side of the inner wall of the water tank (1), and a motor (131) is installed at one end of the spiral stirring paddle (132).

7. The GReen PE mold structure according to claim 3, characterized in that: A filter sleeve (14) is installed on the top of the water inlet pipe (9), and an interception net part is arranged at the bottom of the filter sleeve (14).

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