Plastic injection molding machine with cooling function

Abstract

The utility model discloses a plastic injection molding machine with a cooling function, and belongs to the technical field of plastic injection molding machines. Comprising a bottom plate, a top plate, a machine base, a water inlet pipe and a water outlet pipe, the bottom plate and the top plate are fixedly connected through a guide column, an upper die is arranged below the top plate, a hydraulic cylinder is installed at the upper end of the top plate, and a push rod of the hydraulic cylinder drives the upper die to be in sliding connection with the guide column. The plastic injection molding machine solves the problems that in the prior art, the internal cooling effect of a plastic injection molding machine is common, used cooling water cannot be cooled, the cooling effect of products is reduced, and the production quality of later-stage products is affected, cooling water in the cooling water tank is conveyed through the water inlet pipe under the action of the water pump, cooling of the lower mold is achieved, and the production efficiency is improved. And cooling water is conveyed and then returns to the cooling water tank through the water outlet pipe, so that water circulation is formed, and the cooling effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic injection molding machines, in particular to a plastic injection molding machine with a cooling function. Background Art

[0002] Plastic injection molding machine is also called plastic injection molding machine or plastic injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. The existing Chinese patent with publication number CN215903915U discloses an injection molding device with rapid cooling function: the patent has a No. 1 water tank and a No. 2 water tank, and the No. 1 water pump and the No. 2 water pump installed inside the No. 1 water tank can effectively transmit and flow the coolant inside the No. 1 water tank and the No. 2 water tank, thereby increasing the cooling effect of the lower mold of the device.

[0003] However, the above-mentioned prior art solutions also have the following defects:

[0004] The existing plastic injection molding machines have a general internal cooling effect and are unable to cool down the used cooling water, which reduces the cooling effect of the product and affects the production quality of the subsequent products. Utility Model Content

[0005] The utility model aims to provide a plastic injection molding machine with a cooling function. The cooling water in the cooling water tank is transported through a water inlet pipe under the action of a water pump to realize cooling of a lower mold, so that the plastic in the lower mold can be quickly molded. The cooling water is transported and then returned to the cooling water tank through a water outlet pipe to form a water cycle, thereby ensuring the cooling effect. The heat conduction plate conducts heat to the bottom of the lower mold and discharges heat from the heat dissipation outlet through a heat dissipation channel, thereby improving the cooling efficiency of the lower mold and solving the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic injection molding machine with a cooling function, comprising a bottom plate, a top plate, a machine base, a water inlet pipe and a water outlet pipe, the bottom plate and the top plate are fixedly connected by guide pillars, an upper mold is arranged below the top plate, a hydraulic cylinder is installed at the upper end of the top plate, and a push rod of the hydraulic cylinder drives the upper mold to be slidably connected with the guide pillars, the machine base is located at the upper end of the bottom plate, a cooling water tank is arranged on one side of the machine base, a slot is arranged inside the machine base, and a lower mold is arranged inside the slot.

[0007] Preferably, a cooling groove is provided outside the slot, a cooling pipe connected by an inlet pipe and an outlet pipe is provided inside the cooling groove, and one end of the inlet pipe extends to the inside of the cooling water tank and is connected to a water pump.

[0008] Preferably, a rotating shaft is arranged inside the cooling water tank, and the rotating shaft is connected to the cooling water tank via a bearing, and fan blades are arranged on the outer wall of the rotating shaft.

[0009] Preferably, a water inlet is provided at the upper end of the cooling water tank, a sealing cover is provided on the water inlet, a liquid level observation window is provided on the side of the cooling water tank away from the machine base, and a drain pipe is provided at the rear end of the cooling water tank.

[0010] Preferably, a groove is provided at the lower end of the slot, a heat conducting plate is provided inside the groove, and the heat conducting plate is located at the bottom of the lower mold.

[0011] Preferably, a heat dissipation channel is provided below the groove, and a heat dissipation outlet is provided below the heat dissipation channel.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is a plastic injection molding machine with cooling function. The cooling water in the cooling water tank is transported through the water inlet pipe under the action of the water pump to realize the cooling of the lower mold, so that the plastic in the lower mold can be quickly molded. The cooling water is transported and then returned to the cooling water tank through the water outlet pipe to form a water cycle, which ensures the cooling effect. The heat conduction plate conducts heat to the bottom of the lower mold and discharges heat from the heat dissipation outlet through the heat dissipation channel, thereby improving the cooling efficiency of the lower mold.

[0014] 2. The utility model is a plastic injection molding machine with cooling function. The cooling water flowing out from the water outlet pipe directly falls on the fan blades. The fan blades rotate under the action of the rotating shaft and the bearing to take out the heat, so that the water temperature in the water tank does not differ much, further ensuring the cooling effect of the lower mold and improving the product production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the cooling water tank of the utility model.

[0018] In the figure: 1. bottom plate; 2. upper mold; 3. top plate; 4. guide column; 5. hydraulic cylinder; 6. machine base; 7. lower mold; 8. cooling water tank; 601. slot; 602. cooling groove; 603. groove; 604. heat dissipation channel; 605. heat conduction plate; 606. heat dissipation outlet; 801. water inlet; 802. cover; 803. liquid level observation window; 804. water inlet pipe; 805. water outlet pipe; 806. fan blade; 807. rotating shaft. 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] In order to solve the technical problem that the internal cooling effect of the plastic injection molding machine is generally poor, and the used cooling water cannot be cooled down, which reduces the cooling effect of the product and affects the production quality of the subsequent products, please refer to Figure 1-3 , providing the following technical solutions:

[0021] In this embodiment, a plastic injection molding machine with a cooling function includes a bottom plate 1, a top plate 3, a machine base 6, a water inlet pipe 804 and a water outlet pipe 805. The bottom plate 1 and the top plate 3 are fixedly connected by a guide column 4. An upper mold 2 is arranged below the top plate 3. A hydraulic cylinder 5 is installed at the upper end of the top plate 3, and a push rod of the hydraulic cylinder 5 drives the upper mold 2 to be slidably connected with the guide column 4. The machine base 6 is located at the upper end of the bottom plate 1. A cooling water tank 8 is arranged on one side of the machine base 6. A slot 601 is arranged inside the machine base 6. A lower mold 7 is arranged inside the slot 601. The lower mold 7 is placed in the slot 601. By starting the hydraulic cylinder 5, its push rod drives the upper mold 2 to approach the lower mold 7 to realize injection molding of the thermoplastic plastic.

[0022] A cooling groove 602 is arranged outside the slot 601, and a cooling pipe which is integrally connected by a water inlet pipe 804 and a water outlet pipe 805 is arranged inside the cooling groove 602. One end of the water inlet pipe 804 extends to the inside of the cooling water tank 8 and is connected to a water pump. When the water pump is started, the cooling water in the cooling water tank 8 is transported through the water inlet pipe 804 to cool the lower mold 7, so that the plastic in the lower mold 7 can be quickly molded. The cooling water is transported and then returned to the cooling water tank 8 through the water outlet pipe 805, forming a water circulation, thereby ensuring the cooling effect.

[0023] A rotating shaft 807 is provided inside the cooling water tank 8, and the rotating shaft 807 is connected to the cooling water tank 8 through a bearing. Fan blades 806 are provided on the outer wall of the rotating shaft 807. The cooling water flowing out from the water outlet pipe 805 directly falls on the fan blades 806. The fan blades 806 rotate under the action of the rotating shaft 807 and the bearing to bring out the heat, so that the water temperature in the water tank does not differ much, further ensuring the cooling effect of the lower mold 7.

[0024] A water inlet 801 is provided at the upper end of the cooling water tank 8, a sealing cover 802 is provided on the water inlet 801, a liquid level observation window 803 is provided on the side of the cooling water tank 8 away from the base 6, the liquid level observation window 803 is convenient for observing the liquid level, and a drain pipe is provided at the rear end of the cooling water tank 8.

[0025] A groove 603 is provided at the lower end of the slot 601, a heat conducting plate 605 is provided inside the groove 603, and the heat conducting plate 605 is located at the bottom of the lower mold 7, a heat dissipation channel 604 is provided below the groove 603, and a heat dissipation outlet 606 is provided below the heat dissipation channel 604. The heat conducting plate 605 conducts heat to the bottom of the lower mold 7, and discharges heat from the heat dissipation outlet 606 through the heat dissipation channel 604, thereby improving the cooling efficiency of the lower mold 7.

[0026] Working principle: when in use, the lower mold 7 is placed in the slot 601, and the hydraulic cylinder 5 is started. Its push rod drives the upper mold 2 to approach the lower mold 7 to realize the injection molding of the thermoplastic plastic. The water pump is started to transport the cooling water in the cooling water tank 8 through the water inlet pipe 804 to realize the cooling of the lower mold 7, so that the plastic in the lower mold 7 can be quickly molded. The cooling water is transported back to the cooling water tank 8 through the water outlet pipe 805 to form a water cycle. At the same time, the heat conduction plate 605 conducts heat to the bottom of the lower mold 7, and discharges the heat from the heat dissipation outlet 606 through the heat dissipation channel 604, thereby improving the cooling efficiency of the lower mold 7. The cooling water flowing out of the water outlet pipe 805 directly falls on the fan blade 806, and the fan blade 806 rotates under the action of the rotating shaft 807 and the bearing to bring out the heat, so that the water temperature in the water tank is not much different from top to bottom, further ensuring the cooling effect of the lower mold 7.

[0027] It should be noted that, in this article, relational terms such as first and second, 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.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A plastic injection molding machine with a cooling function, comprising a bottom plate (1), a top plate (3), a machine base (6), a water inlet pipe (804) and a water outlet pipe (805), wherein the bottom plate (1) and the top plate (3) are fixedly connected via a guide column (4), an upper mold (2) is arranged below the top plate (3), a hydraulic cylinder (5) is installed at the upper end of the top plate (3), and a push rod of the hydraulic cylinder (5) drives the upper mold (2) to be slidably connected with the guide column (4), the machine base (6) is located at the upper end of the bottom plate (1), a cooling water tank (8) is arranged on one side of the machine base (6), a slot (601) is arranged inside the machine base (6), and a lower mold (7) is arranged inside the slot (601).

2. A plastic injection molding machine with cooling function according to claim 1, characterized in that: A cooling groove (602) is arranged outside the slot (601), and a cooling pipe connected in an integral manner by a water inlet pipe (804) and a water outlet pipe (805) is arranged inside the cooling groove (602), and one end of the water inlet pipe (804) extends to the inside of the cooling water tank (8) and is connected to a water pump.

3. The plastic injection molding machine with cooling function according to claim 1, characterized in that: A rotating shaft (807) is arranged inside the cooling water tank (8), and the rotating shaft (807) is connected to the cooling water tank (8) via a bearing, and a fan blade (806) is arranged on the outer wall of the rotating shaft (807).

4. The plastic injection molding machine with cooling function according to claim 1, characterized in that: A water inlet (801) is provided at the upper end of the cooling water tank (8), a sealing cover (802) is provided on the water inlet (801), a liquid level observation window (803) is provided on the side of the cooling water tank (8) away from the machine base (6), and a drainage pipe is provided at the rear end of the cooling water tank (8).

5. The plastic injection molding machine with cooling function according to claim 1, characterized in that: A groove (603) is provided at the lower end of the slot (601), a heat conducting plate (605) is provided inside the groove (603), and the heat conducting plate (605) is located at the bottom of the lower mold (7).

6. A plastic injection molding machine with cooling function according to claim 5, characterized in that: A heat dissipation channel (604) is provided below the groove (603), and a heat dissipation outlet (606) is provided below the heat dissipation channel (604).

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