Injection molding machine for polyethylene material boats

Abstract

The application discloses a injection molding machine for polyethylene material ship, which comprises a hot melter, an upper mold and a lower mold, the upper mold is connected with the hot melter, and a connecting mechanism is arranged at the connecting position, limit mechanisms are arranged on the two sides of the upper mold, the upper mold and the lower mold are tightly connected, and a refrigeration mechanism is arranged at the bottom end of the lower mold, the refrigeration mechanism comprises an outer shell, a cavity is arranged in the outer shell and closely adheres to the inner wall of the top end of the outer shell, stirring mechanisms are arranged on the inner walls of the two sides of the cavity, a multi-way pipe and a second multi-way pipe are respectively connected with the two ends of the cavity, a condenser is connected with the other end of the multi-way pipe, the condenser comprises an inlet and an outlet, the multi-way pipe is connected with the outlet of the condenser, and a water pipe is connected with the inlet of the condenser. The injection molding machine for polyethylene material ship has the effects of accelerating the cooling speed and improving the plasticizing efficiency through the water contact direct cooling and three times heat dissipation modes.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, and more particularly to an injection molding machine for ships made of polyethylene material. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting materials using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] In the production of ships made of polyethylene, injection molding machines are also required for shaping. Since the ship itself is large, a lot of polyethylene material is needed. If the polyethylene material heated in the mold is cooled by natural cooling, the time required is also large, and rapid cooling cannot be completed, which directly affects production efficiency. Summary of the Invention

[0004] This invention discloses an injection molding machine for polyethylene material boats, aiming to solve the technical problem that the time required to cool down the heated polyethylene material in the mold by natural cooling is too long, and rapid cooling cannot be achieved, which directly affects production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An injection molding machine for a polyethylene material ship includes a hot melt generator, an upper mold, and a lower mold. The upper mold is connected to the hot melt generator, and a connecting mechanism is provided at the connection point. Limiting mechanisms are provided on both sides of the upper mold. The upper mold and the lower mold can be tightly connected. A cooling mechanism is provided at the bottom of the lower mold. The cooling mechanism includes an outer shell with a cavity inside, and the cavity is tightly attached to the inner wall of the top of the outer shell. A stirring mechanism is provided on both inner walls of the cavity. A multi-port pipe and a second multi-port pipe are respectively connected to both ends of the cavity. The multi-port pipe has a condenser connected to its other end. The condenser includes an inlet and an outlet, and the multi-port pipe is connected to the outlet of the condenser. A water pipe is connected to the inlet of the condenser. A water pump is installed in the middle section of the water pipe. The other end of the water pipe is connected to a water storage tank, which is connected to a second multi-port pipe. A heat sink is installed on the upper outer wall of the water storage tank. Multiple cooling fans are installed on one inner wall of the outer casing, and heat dissipation holes are installed on the opposite inner wall of the outer casing. The heat dissipation holes and cooling fans are arranged diagonally.

[0007] By incorporating a refrigeration mechanism, when polyethylene material is heated through a hot melt injector and injected into the upper and lower molds, a water pump pressurizes the water to flow. As the water passes through the storage tank, it is cooled once by the heat sink and cooling fan located in the upper part. Then, it enters the condenser for a second cooling. After cooling, it enters the inner wall of the cavity and comes into direct contact with the top inner wall of the lower mold. During the flow process, it carries away the heat of the material heated in the mold, thereby achieving rapid cooling of the polyethylene material. Cooling the water before using the condenser also helps to increase the cooling range of the condenser and ensure its service life. During the cooling process, the cooling fan is diagonally positioned with the heat dissipation holes. When the air flows through the heat dissipation holes, it also directly acts on the bottom of the cavity, thus forming an actual three-stage heat dissipation effect. This rapidly treats the high-temperature water, accelerates the cooling speed, and improves the molding efficiency.

[0008] In a preferred embodiment, the water storage tank has an inlet at its top and an outlet on one side. The inlet is connected to a second multi-port pipe, and the outlet is connected to a water pipe. The stirring mechanism includes multiple supporting shells, which are respectively disposed on both sides of the shell. A second stepper motor is connected to the inner wall of the supporting shell. The second stepper motor includes an output end, and the output end of the second stepper motor is connected to a support shaft. Multiple stirring blades are evenly distributed on the outer wall of the support shaft, and multiple perforations are provided on each of the stirring blades. The support shaft and stirring blades are simultaneously disposed within a cavity.

[0009] By incorporating a stirring mechanism, when water enters the cavity for cooling, the second stepper motor drives the support shaft to rotate, thereby rotating multiple stirring blades. During the water flow, the stirring process lifts the water, making it easier for it to contact the top inner wall of the lower mold, where water is unlikely to enter the dead corners. At the same time, the multiple perforations increase the contact area with the water, increasing the number of water droplets lifted and ensuring the cooling speed.

[0010] In a preferred embodiment, a cylinder is provided at the top of the hot melt machine, and multiple injection tubes are provided at the bottom of the hot melt machine. The connecting mechanism includes an outer injection tube, and the multiple outer injection tubes are fixed to the inner wall of the top of the upper mold. The outer wall of the middle injection tube is provided with a bayonet, and a sleeve is movably connected through the bayonet. The lower end of the inner wall of the sleeve is provided with a second bayonet. The outer wall of the middle injection tube is provided with a locking block. The diameter of the outer injection tube is larger than that of the injection tube, and the diameter of the outer injection tube is smaller than that of the sleeve. The outer wall of the sleeve... The movable clamp is connected to a timing belt, and the inner wall of the timing belt is also connected to a roller. The top of the roller is connected to a stepper motor. The bottom of the hot melt machine is provided with a bracket, and the stepper motor is fixed on the bracket. The limiting mechanism includes a connecting plate, and the connecting plate is fixed on both sides of the upper mold. One side of the connecting plate is connected to a limiting sleeve plate, and the inner wall of the limiting sleeve plate is movably connected to a limiting column. The bottom of the connecting plate is also connected to a spring and a telescopic tube, and the spring is wrapped around the outside of the telescopic tube. The bottom ends of the spring and the telescopic tube are also connected to a support plate.

[0011] With a connecting mechanism and a limiting mechanism, when the cylinder drives the hot melt machine to descend, the injection tube connects to the inside of the injection outer tube. Under the action of the stepper motor, the rollers and synchronous belt drive the sleeve to rotate, causing the locking block to engage with the second locking slot. During the downward pressing process, the spring and telescopic tube are compressed. After cooling, the hot melt machine is lifted by the cylinder, and the upper mold is lifted directly through the connecting mechanism. The stability of the lifting is ensured by the springs on both sides and the limiting columns. Demolding is completed without the need for other driving components, which has the significance of reducing cost expenditure.

[0012] As described above, an injection molding machine for a polyethylene material ship includes a hot melt generator, an upper mold, and a lower mold. The upper mold is connected to the hot melt generator, and a connecting mechanism is provided at the connection point. Limiting mechanisms are provided on both sides of the upper mold. The upper mold and the lower mold can be tightly connected. A cooling mechanism is provided at the bottom of the lower mold. The cooling mechanism includes an outer shell, and a cavity is provided inside the outer shell. The cavity is tightly attached to the inner wall of the top of the outer shell. A stirring mechanism is provided on both inner walls of the cavity. A multi-port pipe is connected to both ends of the cavity. The second multi-port pipe has a condenser connected to its other end. The condenser includes an inlet and an outlet, and the multi-port pipe is connected to the outlet of the condenser. A water pipe is connected to the inlet of the condenser, and a water pump is installed in the middle section of the water pipe. The other end of the water pipe is connected to a water storage tank, which is connected to the second multi-port pipe. A heat sink is installed on the upper outer wall of the water storage tank. Multiple cooling fans are installed on one inner wall of the outer casing, and heat dissipation holes are installed on the opposite inner wall of the outer casing. The heat dissipation holes and cooling fans are arranged diagonally. The injection molding machine for polyethylene material ships provided by this invention has the technical effect of accelerating the cooling speed and improving the molding efficiency through direct water contact cooling and three-stage heat dissipation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an injection molding machine for a polyethylene material ship proposed in this invention.

[0014] Figure 2 This is a split schematic diagram of the connection mechanism of an injection molding machine for a polyethylene material ship proposed in this invention.

[0015] Figure 3 This is a schematic diagram of a limiting mechanism for an injection molding machine used in a polyethylene material ship, as proposed in this invention.

[0016] Figure 4 This is a schematic diagram of the refrigeration mechanism of an injection molding machine for a polyethylene material ship, as proposed in this invention.

[0017] Figure 5 This is a schematic diagram of the mixing mechanism of an injection molding machine for a polyethylene material ship, as proposed in this invention.

[0018] Figure 6 This is a schematic diagram of the water storage tank structure of an injection molding machine for a polyethylene material ship, as proposed in this invention.

[0019] In the diagram: 1. Limiting mechanism; 2. Upper mold; 3. Hot melt machine; 4. Cylinder; 5. Connecting mechanism; 6. Stirring mechanism; 7. Lower mold; 8. Cooling mechanism; 9. Injection tube; 101. Limiting column; 102. Limiting sleeve; 103. Connecting plate; 104. Spring; 105. Telescopic tube; 106. Support plate; 501. Bracket; 502. Stepper motor; 503. Bayonet; 504. Sleeve; 505. Second bayonet; 506. Injection outer tube; 507. Locking block; 508. Synchronous belt; 509. Roller; 601. Support housing; 602. Second stepper motor; 603. Support shaft; 604. Stirring blade; 605. Perforation; 801. Cavity; 802. Multi-port pipe; 803. Water pipe; 804. Condenser; 805. Heat dissipation hole; 806. Water pump; 807. Water storage tank; 808. Second multi-port pipe; 809. Cooling fan; 810. Heat sink; 811. Water outlet; 812. Water inlet; 813. Housing. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] The injection molding machine disclosed in this invention for polyethylene material ships is mainly applied to the production of polyethylene material ships.

[0022] Reference Figure 1 , Figure 4 and Figure 6An injection molding machine for a polyethylene material ship includes a hot melt generator 3, an upper mold 2, and a lower mold 7. The upper mold 2 is connected to the hot melt generator 3, and a connecting mechanism 5 is provided at the connection point. Limiting mechanisms 1 are provided on both sides of the upper mold 2. The upper mold 2 and the lower mold 7 can be tightly connected. A cooling mechanism 8 is provided at the bottom of the lower mold 7. The cooling mechanism 8 includes an outer shell 813, and a cavity 801 is provided inside the outer shell 813. The cavity 801 is closely attached to the inner wall of the top of the outer shell 813. A stirring mechanism 6 is provided on both inner walls of the cavity 801. A multi-port pipe 802 is connected to both ends of the cavity 801. The second multi-port pipe 808 connects to a condenser 804 at one end, which includes an inlet and an outlet. The multi-port pipe 802 is connected to the outlet of the condenser 804. A water pipe 803 is connected to the inlet of the condenser 804, and a water pump 806 is installed in the middle section of the water pipe 803. The other end of the water pipe 803 is connected to a water storage tank 807, which is connected to the second multi-port pipe 808. A heat sink 810 is installed on the upper outer wall of the water storage tank 807. Multiple cooling fans 809 are installed on one inner wall of the outer casing 813, and the opposite inner wall of the outer casing 813... A heat dissipation hole 805 is provided, and the heat dissipation hole 805 and the cooling fan 809 are arranged diagonally. When the polyethylene material is heated by the hot melt 3 and injected into the upper mold 2 and the lower mold 7, the water pump 806 pressurizes the water to flow. First, when the water passes through the water storage tank 807, the heat is conducted through the heat dissipation fins 810 on the upper part of the water and dissipated by the cooling fan 809 on one side. The water that has been cooled is denser than the water that has not been cooled, so it settles and is guided through the water pipe 803 into the condenser 804 for secondary cooling. After cooling, it enters the inner wall of the cavity 801 and meets the lower mold. The top inner wall of the condenser 7 is in direct contact with the material, which carries away the heat from the material heated in the mold during the flow process, thereby achieving rapid cooling of the polyethylene material. By cooling the material with water before using the condenser 804, the cooling range of the condenser 804 is also improved, ensuring the service life of the condenser 804. During the heat dissipation process, the cooling fan 809 is diagonally set with the heat dissipation hole 805. When the air flows through the heat dissipation hole 805, it also directly acts on the bottom of the cavity 801, thus forming an actual three-stage heat dissipation effect. This rapidly treats the high-temperature water, accelerates the cooling speed, and improves the molding efficiency.

[0023] Reference Figure 6 In a preferred embodiment, the top of the water storage tank 807 is provided with a water inlet 812, and the side of the water storage tank 807 is provided with a water outlet 811. The water inlet 812 is connected to the second multi-port pipe 808, and the water outlet 811 is connected to the water pipe 803.

[0024] Reference Figure 4 and Figure 5In a preferred embodiment, the stirring mechanism 6 includes a plurality of supporting shells 601, and the plurality of supporting shells 601 are respectively disposed on both sides of the shell body 813. The inner wall of the supporting shell 601 is connected to a second stepper motor 602. The second stepper motor 602 includes an output end, and the output end of the second stepper motor 602 is connected to a support shaft 603.

[0025] Reference Figure 5 In a preferred embodiment, the outer wall of the support shaft 603 is provided with a plurality of stirring blades 604 at equal density, and the plurality of stirring blades 604 are provided with a plurality of perforations 605. The support shaft 603 and the stirring blades 604 are simultaneously arranged in the cavity 801. When water enters the cavity 801 for cooling, the stirring mechanism 6 arranged in the cavity 801, wherein the second stepper motor 602 drives the support shaft 603 to rotate, thereby driving the plurality of stirring blades 604 to rotate. During the flow of water, the water will be stirred up during the stirring process, so that it can contact the dead corner of the top inner wall of the lower mold 7 where water is not easy to enter. At the same time, the plurality of perforations 605 increase the contact area with water, increase the number of water droplets stirred up, and ensure the cooling speed.

[0026] Reference Figure 1 and Figure 2 In a preferred embodiment, a cylinder 4 is provided at the top of the hot melt 3, and a plurality of injection tubes 9 are provided at the bottom of the hot melt 3. The connecting mechanism 5 includes an injection outer tube 506, and the plurality of injection outer tubes 506 are fixed to the inner wall of the top of the upper mold 2. A bayonet 503 is provided on the outer wall of the injection tube 9 located in the middle, and a sleeve 504 is movably connected through the bayonet 503.

[0027] Reference Figure 2 In a preferred embodiment, a second latch 505 is provided at the lower end of the inner wall of the sleeve 504, and a latch 507 is provided on the outer wall of the injection-molded outer tube 506 located in the middle. The diameter of the injection-molded outer tube 506 is larger than that of the injection-molded tube 9, and the diameter of the injection-molded outer tube 506 is smaller than that of the sleeve 504.

[0028] Reference Figure 2 In a preferred embodiment, a timing belt 508 is movably engaged on the outer wall of the sleeve 504, and a roller 509 is connected to the inner wall of the timing belt 508. A stepper motor 502 is connected to the top of the roller 509, and a bracket 501 is provided at the bottom of the hot melt 3, with the stepper motor 502 fixed on the bracket 501.

[0029] Reference Figure 3In a preferred embodiment, the limiting mechanism 1 includes a connecting plate 103, which is fixed to both sides of the upper mold 2. A limiting sleeve 102 is connected to one side of the connecting plate 103, and a limiting column 101 is movably connected to the inner wall of the limiting sleeve 102. A spring 104 and a telescopic tube 105 are connected to the bottom end of the connecting plate 103, with the spring 104 wrapped around the outside of the telescopic tube 105. A support plate 106 is connected to the bottom ends of the spring 104 and the telescopic tube 105. When the cylinder 4 drives the hot melt generator 3 to descend, the injection tube 9 connects to the injection outer tube 5. The internal components of 06 are connected, and under the action of stepper motor 502, roller 509 and synchronous belt 508 drive sleeve 504 to rotate, so that the locking block 507 is engaged in the second locking slot 505. During the pressing process, spring 104 and telescopic tube 105 are compressed. After cooling, the hot melt 3 is lifted by cylinder 4, and the upper mold 2 is lifted directly through the connecting mechanism 5. Under the action of springs 104 on both sides and limit column 101, the stability of the lifting can be guaranteed. Demolding is completed without the need for other driving components, which has the significance of reducing cost expenditure.

[0030] Working Principle: During use, when the polyethylene material is heated by the hot melt injector 3 and injected into the upper mold 2 and lower mold 7, the water pump 806 pressurizes the water to flow. First, as the water passes through the water storage tank 807, it is heated by the heat sink 810 on the upper part and cooled by the cooling fan 809 on one side. The cooled water, being denser than the uncooled water, settles and is guided through the water pipe 803 into the condenser 804 for secondary cooling. After cooling, it enters the inner wall of the cavity 801, directly contacting the top inner wall of the lower mold 7. During the flow, it carries away the heat from the heated material inside the mold, thus achieving rapid cooling of the polyethylene material. This initial cooling by supplying water before using the condenser 804 also helps to increase the cooling rate of the condenser 804 and ensure the condenser 804's performance. 4. During the heat dissipation process, the cooling fan 809, being diagonally positioned with the heat dissipation holes 805, directly acts on the bottom of the cavity 801 when air flows through the heat dissipation holes 805, thus forming a three-stage heat dissipation effect. This rapidly treats the high-temperature water, accelerates the cooling speed, and improves the molding efficiency. When water enters the cavity 801 for cooling, the stirring mechanism 6 installed in the cavity 801, in which the second stepper motor 602 drives the support shaft 603 to rotate, thereby driving multiple stirring blades 604 to rotate. During the water flow, the water is stirred up, making it easier for it to contact the top inner wall of the lower mold 7, where water is unlikely to enter the dead corner. At the same time, the multiple perforations 605 increase the contact area with the water, increasing the number of water droplets stirred up and ensuring the cooling speed.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An injection molding machine for polyethylene material boats comprising a hot-melter (3), an upper mold (2) and a lower mold (7), characterized by the fact that, The upper mold (2) is connected with the hot melt device (3), and a connecting mechanism (5) is arranged at the connecting position. The upper mold (2) is provided with a limiting mechanism (1) on both sides. The upper mold (2) and the lower mold (7) are tightly connected, and the bottom end of the lower mold (7) is provided with a refrigeration mechanism (8). The refrigeration mechanism (8) comprises an outer shell (813). A cavity (801) is arranged in the outer shell (813), and the cavity (801) is tightly attached to the top end inner wall of the outer shell (813). The inner walls on both sides of the cavity (801) are provided with stirring mechanisms (6) at the same time. The both ends of the cavity (801) are respectively connected with a multi-way pipe (802) and a second multi-way pipe (808). The other end of the multi-way pipe (802) is connected with a condenser (804). The condenser (804) comprises an inlet and an outlet, and the multi-way pipe (802) is connected with the outlet of the condenser (804). The inlet of the condenser (804) is connected with a water pipe (803). The middle section of the water pipe (803) is provided with a water pump (806). The other end of the water pipe (803) is connected with a water storage tank (807), and the water storage tank (807) is connected with the second multi-way pipe (808). The upper end outer wall of the water storage tank (807) is provided with a cooling fin (810). A plurality of cooling fans (809) are arranged on the inner wall of one side of the outer shell (813), and a cooling hole (805) is arranged on the opposite inner wall of the outer shell (813). The cooling hole (805) and the cooling fan (809) are diagonally arranged; The top end of the hot melt device (3) is provided with a cylinder (4), and the bottom end of the hot melt device (3) is provided with a plurality of injection pipes (9). The connecting mechanism (5) comprises an injection outer pipe (506), and a plurality of injection outer pipes (506) are fixed on the top end inner wall of the upper mold (2). The outer wall of the injection pipe (9) located in the middle is provided with a bayonet (503), and a sleeve (504) is movably connected through the bayonet (503). The inner wall lower end of the sleeve (504) is provided with a second bayonet (505), and the outer wall of the injection outer pipe (506) located in the middle is provided with a clamping block (507). The diameter of the injection outer pipe (506) is greater than that of the injection pipe (9), and the diameter of the injection outer pipe (506) is smaller than that of the sleeve (504). The outer wall of the sleeve (504) movably clamps a synchronous belt (508), and the inner wall of the synchronous belt (508) is connected with a plurality of rollers (509) at the same time. The top end of the roller (509) is connected with a stepping motor (502). The bottom end of the hot melt device (3) is provided with a support (501), and the stepping motor (502) is fixed on the support (501). The limiting mechanism (1) comprises a connecting plate (103) fixed on both sides of the upper die (2), one side of the connecting plate (103) is connected with a limiting sleeve plate (102), the inner wall of the limiting sleeve plate (102) is movably connected with a limiting stand (101), the bottom end of the connecting plate (103) is simultaneously connected with a spring (104) and a telescopic pipe (105), the spring (104) is wrapped outside the telescopic pipe (105), and the bottom end of the spring (104) and the telescopic pipe (105) is simultaneously connected with a supporting plate (106).

2. An injection molding machine for polyethylene material boats according to claim 1, characterized in that, The top end of the water storage tank (807) is provided with a water inlet (812), one side of the water storage tank (807) is provided with a water outlet (811), the water inlet (812) is connected with the second multi-way pipe (808), and the water outlet (811) is connected with the water pipe (803).

3. An injection molding machine for polyethylene material boats as claimed in claim 1, characterized in that, The stirring mechanism (6) comprises a plurality of supporting housings (601), and the plurality of supporting housings (601) are arranged on both sides of the outer shell (813), the inner wall of the supporting housing (601) is connected with a second stepping motor (602), the second stepping motor (602) comprises an output end, and the output end of the second stepping motor (602) is connected with a supporting shaft (603).

4. An injection molding machine for polyethylene material boats according to claim 3, characterized in that, The outer wall of the supporting shaft (603) is provided with a plurality of stirring blades (604) at equal density, and a plurality of perforations (605) are arranged on the plurality of stirring blades (604), respectively, and the supporting shaft (603) and the stirring blade (604) are arranged in the cavity (801) simultaneously.

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