Plastic oil bottle injection molding device with automatic cooling function

Abstract

The invention provides an automatic cooling plastic oil bottle injection molding device, and relates to the technical field of injection molding. The plastic oil bottle injection molding device with the automatic cooling function comprises a mounting shell, a folding telescopic rod is fixedly arranged on the inner side of the mounting shell, and the free end of the folding telescopic rod is fixedly connected with a forming mold. According to the plastic oil bottle injection molding device with the automatic cooling function, the molding mold is arranged to be hollow, so that the temperature of the mold is more convenient to control, and the situation that the shape of an oil bottle is irregular due to the fact that the temperature of the mold cannot be rapidly changed during molding and cooling is prevented; by means of the cooling device, the forming mold can rapidly complete cooling and heating alternation, so that cooling of the mold is completed, pollution and damage to the mold caused by direct spraying are reduced, temperature exchange in the forming mold is rapidly completed, and the effects of forming and rapid cooling are achieved; the problems that after a mold is formed, rapid cooling cannot be achieved, and direct spraying can cause mold pollution and damage are solved.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, specifically to an automatic cooling plastic oil bottle injection molding device. Background Technology

[0002] The manufacturing process for food plastic bottles typically involves first producing a preform, then heating it to make it elastic to prevent it from being too hard to blow. After heating, the hot preform is placed into a mold, and a metal rod extends from the forming head to pull the preform downwards. Low-pressure air enlarges the preform, and then high-pressure air instantly blows it up, instantly jamming the edge of the mold. After cooling, the bottle is formed through the cool metal mold.

[0003] A search revealed Chinese patent CN216832157U, which discloses an automatically cooling plastic bottle injection molding device, comprising: a base and a connecting plate; a molding head is provided on the connecting plate; a base plate is provided on the top of the base; hydraulic telescopic structures are provided on both sides of the top of the base; side molds are provided on opposite sides of the two sets of hydraulic telescopic structures; the inner walls of the two sets of side molds are in contact with the base plate; by creating grooves on the side molds, the cooling area of ​​the side molds can be increased; by adding cooling water from the inlet, the spiral cooling pipes in the grooves can effectively remove heat from the side molds; by arranging a cooling fan on the top of the grooves, the airflow around the grooves and cooling pipes can be accelerated to achieve a rapid cooling effect on the side molds. This design uses curved pipes on the outside of the mold for injecting cooling water. However, due to the high temperature of the mold during molding, this can affect the internal temperature of the pipes, thus affecting the cooling effect of the cooling water. Furthermore, lifting the injected cooling water results in a lower temperature, which can affect the molding effect of the mold.

[0004] Existing injection molding equipment addresses the cooling problem by using cooling water, which, when unable to lower the temperature, lowers the mold temperature during injection. Therefore, the lack of mold preheating affects the molding effect. Furthermore, the high temperature during mold molding means that prolonged exposure of the cooling water to the mold also affects the cooling effect. Direct spraying further impacts the bottle quality. To address these issues, an automatic cooling plastic oil bottle injection molding device is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic cooling plastic oil bottle injection molding device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic cooling plastic oil bottle injection molding device, comprising a mounting shell, a retractable telescopic rod fixedly installed inside the mounting shell, a molding die fixedly connected to the free end of the retractable telescopic rod, a ventilation system on both sides of the molding die, a guide pipe connected to the surface of the ventilation system, a flow guiding mechanism at both ends of the guide pipe, a wrapping chamber covering the surface of the molding die, a sealing component inside the wrapping chamber for controlling the connection and isolation between the wrapping chamber and the molding die, an external cold water tank connected to the lower end of the molding die via a connecting plate, the external cold water tank connected to the wrapping chamber via a pipe, and a water squeezing mechanism inside the external cold water tank for squeezing the water stored inside the external cold water tank to accelerate the flow of cold water.

[0007] Preferably, the molding die consists of a bottle body mold chamber and a bottle bottom mold chamber. The surface of the bottle body mold chamber is provided with a recessed mold groove, the inside of the bottle body mold chamber is provided with a cavity, the outer surface of the bottle body mold chamber is provided with holes that communicate with the cavity, and clamping plates are provided on both sides of the bottle body mold chamber. The inner side of the clamping plates is a cavity that communicates with the cavity of the bottle body mold chamber.

[0008] Preferably, the lower end of the bottle body mold chamber is provided with an array of circular holes that communicate with the bottle bottom mold chamber. The inside of the bottle bottom mold chamber is hollow, and a drainage pipe is connected to the bottom of the bottle bottom mold chamber.

[0009] Preferably, the air guiding mechanism includes an input end and an output end. An output air guiding fan is provided inside the output end, and an input fan is provided inside the input end for guiding air in. An electric heating component is provided at the lower end of the input fan for heating the incoming air. A tapered pipe is provided at the connection position between the input end and the air guiding pipe to allow airflow to enter smoothly.

[0010] Preferably, the ventilation system includes a distribution cylinder, which is connected to an air duct. A bend is provided on the surface of the distribution cylinder, and a filter plate is connected to the bend. The filter plate is connected to a clamping plate.

[0011] Preferably, the air guide duct is S-shaped, with an arc-shaped duct connected to the protruding part of the bend, and the arc-shaped duct is connected to the distribution cylinder. The input end of the air guide mechanism is located at the upper end of the air guide duct, and the output end is located at the lower end of the air guide duct.

[0012] Preferably, the sealing assembly includes a sealing gear driven by a motor, the surface of which is meshed with an arc-shaped toothed plate, and a shielding grid is fixedly connected to the end face of the arc-shaped toothed plate. The shielding grid is fitted to the outside of the bottle mold chamber to seal the holes on the outer surface of the bottle mold chamber. The encapsulation chamber is divided into two chambers, one of which is wrapped around the outside of the shielding grid and has a round hole on its surface that communicates with an external cold water tank, and the other is wrapped around the outside of the arc-shaped toothed plate. The two chambers are connected by a through groove. A slider is provided at the connection position between the arc-shaped toothed plate and the shielding grid. The slider slides inside the through groove, and the arc-shaped toothed plate is fitted to the surface of the through groove to seal the through groove.

[0013] Preferably, the external cold water tank consists of two chambers, an upper chamber for storing water and a lower chamber for operating. The surface of the water tank is provided with several sets of cooling pipes that are connected to the packaging chamber. The upper end of the water tank is connected to a water inlet pipe for replenishing cold water. The lower end of the surface of the water tank is provided with a discharge valve, which is opposite to the position of the cooling pipes. The water tank and the operating chamber are separated by a partition plate, and the surface of the partition plate is provided with a connecting groove.

[0014] Preferably, the dewatering mechanism includes a mandrel, which is located at the center of an external cold water tank and passes through the water storage tank and the operating chamber. A first extrusion plate is sleeved on the outside of the mandrel, and a first external toothed ring is provided at the lower end of the first extrusion plate. The first extrusion plate is inside the water storage tank, and the first external toothed ring is inside the operating chamber. A motor-driven dewatering gear is provided inside the operating chamber, and the dewatering gear meshes with the first external toothed ring. A second extrusion plate is sleeved on the outside of the mandrel, and a second internal toothed ring is connected to the lower end of the second extrusion plate through a slider. The slider slides inside the connecting groove, and the second internal toothed ring is rotatably connected to a partition plate. The inner teeth of the second internal toothed ring mesh with the dewatering gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This automatically cooled plastic oil bottle injection molding device, by setting the molding mold to be hollow, makes the mold temperature easier to control and prevents the oil bottle from becoming irregular in shape due to the inability to quickly change the temperature during molding and cooling. By setting up a flow guiding mechanism and a ventilation system, the molding mold can be quickly heated by hot air, allowing the oil bottle to fully contact the mold groove and make its shape more standard. By setting up an external cold water tank to quickly inject water into the molding mold for rapid cooling, the molding mold can quickly complete the hot and cold alternation, thereby completing the cooling of the mold and reducing the contamination and damage to the mold caused by direct spraying. It achieves rapid temperature exchange inside the molding mold, thus realizing the effect of molding and rapid cooling, solving the problems of the inability to cool the mold quickly after molding and the contamination and damage to the mold caused by direct spraying.

[0016] This automatic cooling plastic oil bottle injection molding device places the water tank outside the molding die, so that the temperature inside the water tank is not affected by the temperature of the molding die. By squeezing the water inside the water tank, the water flows quickly into the inside of the molding die, so that the molding die can achieve a rapid cooling effect. This achieves the effect of rapid cooling with an external water tank and solves the problem of the surface cooling water tank being affected when the mold is heated.

[0017] This automatically cooled plastic oil bottle injection molding device heats the incoming airflow using an electric heating element. By designing the air duct into a curved shape, most of the incoming airflow enters the arc-shaped duct at the first corner, thus transferring the hot airflow to the ventilation system. A small portion of the airflow exits from below after passing the first corner. At the second corner, where it connects with the arc-shaped duct, the accelerated airflow attracts the airflow from inside the second arc-shaped duct. The flow of hot air heats the cavity inside the molding die and quickly expels excess gas, achieving both preheating of the molding die and preventing pressure obstruction when cold water is rapidly injected due to excessive internal gas. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the molding die structure of the present invention; Figure 3 This is a schematic diagram of the distribution cylinder structure of the present invention; Figure 4 This is a schematic diagram of the air duct structure of the present invention; Figure 5 This is an enlarged view of position A in the present invention; Figure 6 This is a schematic diagram of the shielding grid structure of the present invention; Figure 7 This is a schematic diagram of the bottle body mold chamber structure of the present invention; Figure 8 This is a schematic diagram of the water storage tank structure of the present invention; Figure 9 This is a schematic diagram of the second internal toothed ring structure of the present invention; Figure 10 This is a schematic diagram of the partition plate structure of the present invention.

[0019] In the diagram: 1. Mounting shell; 2. Retractable telescopic rod; 3. Molding mold; 31. Bottle body mold compartment; 311. Mold groove; 312. Clamping plate; 32. Bottle bottom mold compartment; 321. Drainage pipe; 4. Ventilation system; 41. Distribution cylinder; 42. Bend; 43. Filter plate; 5. Air guide duct; 51. Arc-shaped duct; 6. Flow guiding mechanism; 61. Input end; 611. Input fan; 612. Heating element; 62. Output end; 7. Packaging compartment; 71. Through 8. Through groove; 9. Sealing assembly; 10. Sealing gear; 11. Arc-shaped toothed plate; 12. Shielding grid; 13. External cold water tank; 14. Water storage tank; 15. Cooling pipe; 16. Inlet pipe; 17. Discharge valve; 18. Operating chamber; 19. Divider plate; 10. Connecting groove; 10. Water squeezing mechanism; 101. Mandrel; 102. First extrusion plate; 103. First external toothed ring; 104. Water squeezing gear; 105. Second extrusion plate; 106. Second internal toothed ring. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0024] like Figure 1-10 As shown, an automatic cooling plastic oil bottle injection molding device includes a mounting shell 1. A telescopic rod 2 is fixedly installed inside the mounting shell 1. A molding mold 3 is fixedly connected to the free end of the telescopic rod 2. The molding mold 3 consists of a bottle body mold chamber 31 and a bottle bottom mold chamber 32. The surface of the bottle body mold chamber 31 is provided with a recessed mold groove 311. The inside of the bottle body mold chamber 31 is provided with a cavity. The outer surface of the bottle body mold chamber 31 is provided with holes that communicate with the cavity. Clamping plates 312 are provided on both sides of the bottle body mold chamber 31. The inner side of the clamping plate 312 is a cavity that communicates with the cavity of the bottle body mold chamber 31. By making the inner sides of both the bottle body mold chamber 31 and the bottle bottom mold chamber 32 hollow, the temperature of the molding mold 3 body is easier to control. By providing clamping plates 312 on both sides of the bottle body mold chamber 31, it is convenient for the two molding molds 3 to fit and align, and it is also convenient for the exchange of hot air inside the bottle body mold chamber 31.

[0025] The lower end of the bottle body mold chamber 31 is provided with an array of round holes that connect to the bottle bottom mold chamber 32. The inside of the bottle bottom mold chamber 32 is hollow, and the bottom of the bottle bottom mold chamber 32 is connected to a drainage pipe 321. By setting the bottle body mold chamber 31 and the bottle bottom mold chamber 32 as two independent spaces, water circulation can be achieved when the molding mold 3 is cooled, so that the water flow can fully contact the molding mold 3.

[0026] Both sides of the molding die 3 are equipped with a ventilation system 4. The ventilation system 4 includes a distribution cylinder 41, which is connected to the air guide pipe 5. The surface of the distribution cylinder 41 is provided with a bend 42, which is connected to a filter plate 43. The filter plate 43 is connected to the clamping plate 312. By setting the distribution cylinder 41, the ventilation system 4 provides a buffer space for the internal airflow, allowing the airflow to enter the filter plate 43 through several sets of bends 42 on both sides, so that the airflow is blown into the clamping plate 312 more evenly. The filter plate 43 can filter the airflow and block the water flow from entering.

[0027] The ventilation system 4 has an air duct 5 connected to its surface. Both ends of the air duct 5 are equipped with a flow guiding mechanism 6. The flow guiding mechanism 6 includes an input end 61 and an output end 62. The output end 62 has an output flow guiding fan blade inside, and the input end 61 has an input fan 611 inside for drawing in air. The input fan 611 has an electric heating element 612 at its lower end for heating the incoming air. A tapered pipe is provided at the connection between the input end 61 and the air duct 5 to allow the airflow to enter smoothly. By setting the input fan 611 and the electric heating element 612 at the upper end, the flow guiding mechanism 6 heats the airflow entering the air duct 5, reducing the temperature difference between the surface of the molding mold 3 and the preform, making the molding more standardized. By setting the output flow guiding fan blade below the air duct 5, the used hot airflow can be quickly discharged.

[0028] The air duct 5 is S-shaped, with an arc-shaped pipe 51 connected to the protruding part of the bend. The arc-shaped pipe 51 is connected to the distribution cylinder 41. The input end 61 of the flow guiding mechanism 6 is located at the upper end of the air duct 5, and the output end 62 is located at the lower end of the air duct 5. By setting the air duct 5 into an S-shape, most of the airflow entering from the upper end enters the arc-shaped pipe 51 at the first corner, thereby transferring the hot airflow to the ventilation system 4. A small portion of the airflow is discharged from below after passing the first corner. When it is discharged, at the second corner where it connects with the arc-shaped pipe 51, the airflow speeds up and attracts the airflow inside the second arc-shaped pipe 51 to be discharged. The flow of hot air heats the cavity inside the molding mold 3 and quickly discharges excess gas, preventing the problem of pressure obstruction when cold water is injected quickly due to excessive internal gas.

[0029] The molding mold 3 is covered with a packaging chamber 7. A sealing component 8 is provided inside the packaging chamber 7 to control the connection and isolation between the packaging chamber 7 and the molding mold 3. The sealing component 8 includes a sealing gear 81 driven by a motor. An arc-shaped toothed plate 82 meshes with the surface of the sealing gear 81. A shielding grid 83 is fixedly connected to the end face of the arc-shaped toothed plate 82. The shielding grid 83 fits against the outside of the bottle body mold chamber 31 to seal the holes on the outer surface of the bottle body mold chamber 31. The packaging chamber 7 is divided into two chambers. One chamber is wrapped around the outside of the shielding grid 83 and has a round hole on its surface that connects to an external cold water tank 9. Another component is wrapped around the outside of the arc-shaped toothed plate 82. The two chambers are connected by a through groove 71. A slider is provided at the connection position between the arc-shaped toothed plate 82 and the shielding grid 83. The slider slides inside the through groove 71. The arc-shaped toothed plate 82 fits against the surface of the through groove 71 to seal the through groove 71. The sealing component 8 uses the obstruction of the shielding grid 83 to control the space for exchange between the bottle mold chamber 31 and the outside, so that the hot air flow inside the bottle mold chamber 31 cannot be leaked out from the surface. Furthermore, by rotating the shielding grid 83, the holes on the surface of the bottle mold chamber 31 are opened to facilitate the injection of cold water.

[0030] An external cold water tank 9 is connected to the lower end of the molding mold 3 via a connecting plate. The external cold water tank 9 is connected to the packaging chamber 7 via a pipe. The external cold water tank 9 consists of two chambers: an upper chamber is a water storage tank 91, and a lower chamber is an operating chamber 92. Several sets of cooling pipes 911 are provided on the surface of the water storage tank 91 and are connected to the packaging chamber 7. A water inlet pipe 912 is connected to the upper end of the water storage tank 91 for replenishing cold water. A discharge valve 913 is provided at the lower end of the surface of the water storage tank 91. The discharge valve 913 is opposite in position to the cooling pipes 911. The water storage tank 91 and the operating chamber 92 are separated by a partition plate 93. A connecting groove 931 is provided on the surface of the partition plate 93. The external cold water tank 9 is used to store externally injected cold water through the water storage tank 91. By placing the external cold water tank 9 outside the molding mold 3, the internal temperature of the water storage tank 91 is not affected by the temperature of the molding mold 3, thus preventing the waste of cold water. The discharge valve 913 allows the water accumulated inside the water storage tank 91 to be discharged.

[0031] An external cold water tank 9 is equipped with a water squeezing mechanism 10, which is used to squeeze the water stored inside the external cold water tank 9 to accelerate the flow of cold water. The water squeezing mechanism 10 includes a spindle 101, which is located at the center of the external cold water tank 9 and passes through the water storage tank 91 and the operating chamber 92. A first squeezing plate 102 is sleeved on the outside of the spindle 101. A first external gear ring 103 is provided at the lower end of the first squeezing plate 102. The first squeezing plate 102 is inside the water storage tank 91, and the first external gear ring 103 is inside the operating chamber 92. A motor-driven water squeezing gear 104 is provided inside the operating chamber 92, and the water squeezing gear 104 meshes with the first external gear ring 103. A second extrusion plate 105 is sleeved on the outside of the mandrel 101. The lower end of the second extrusion plate 105 is connected to a second internal gear ring 106 via a slider. The slider slides inside the connecting groove 931. The second internal gear ring 106 is rotatably connected to the partition plate 93. The inner teeth of the second internal gear ring 106 mesh with the water squeezing gear 104. The water squeezing mechanism 10 rotates inside the water storage tank 91 via the first extrusion plate 102 and the second extrusion plate 105 to squeeze the internal water flow, so that the water flow can be accelerated to be discharged from the cooling pipe 911, and the cold water can quickly enter the inside of the molding mold 3 to cool the molding mold 3, thereby cooling the oil bottle that is injection molded inside.

[0032] In use, the two molding dies 3 are closed by retracting the telescopic rod 2, and the heated bottle preform is placed in to complete the blow molding process. During the blow molding of the oil bottle, the input fan 611 and the electric heating component 612 are started, so that hot air enters the air guide pipe 5 from the input end 61. The hot air enters the ventilation system 4 from the air guide pipe 5, so that the inside of the molding die 3 is filled with hot air, making the shape of the oil bottle more complete during blow molding. The hot air blows in from one side of the molding die 3 and blows out from the other side. The air is blown in from the upper end of the air guide pipe 5 and discharged from the lower end. After molding is completed, the input fan 611 is turned off, and the motor is started to drive the sealing gear 81 to rotate. The sealing gear 81 pushes the arc-shaped toothed plate 82 to rotate, so that the shielding grid 83 rotates and opens the hole on the outer surface of the bottle body mold chamber 31, allowing water to flow into the inside of the water inlet pipe 912. Cold water is injected and stored inside the water tank 91. The motor is started to drive the squeezing gear 104 to rotate, which in turn drives the first outer gear ring 103 to rotate, causing the first extrusion plate 102 to rotate inside the water tank 91. At the same time, the squeezing gear 104 drives the second inner gear ring 106 to rotate, causing the second extrusion plate 105 to rotate inside the water tank 91. With the first extrusion plate 102 and the second extrusion plate 105 rotating simultaneously inside the water tank 91, the cold water inside the water tank 91 quickly enters the packaging chamber 7 through the cooling pipe 911, then enters the inner cavity of the bottle body mold chamber 31, and then enters the bottom mold chamber 32 below, exiting through the drain pipe 321. This allows the cold water to quickly cool the molding mold 3, enabling the oil bottle to cool down rapidly after molding.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0034] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cooling plastic oil bottle injection molding device, comprising a mounting shell (1), wherein a retractable telescopic rod (2) is fixedly disposed on the inner side of the mounting shell (1), characterized in that: The retractable telescopic rod (2) is fixedly connected to a molding mold (3) at its free end. Both sides of the molding mold (3) are equipped with a ventilation system (4). The surface of the ventilation system (4) is connected to a guide pipe (5). Both ends of the guide pipe (5) are equipped with a flow guiding mechanism (6). The surface of the molding die (3) is covered with a packaging chamber (7), and a sealing component (8) is provided inside the packaging chamber (7) to control the connection and isolation between the packaging chamber (7) and the molding die (3). The lower end of the molding die (3) is connected to an external cold water tank (9) through a connecting plate. The external cold water tank (9) is connected to the packaging chamber (7) through a pipe. The external cold water tank (9) is provided with a water squeezing mechanism (10) inside to squeeze the water stored inside the external cold water tank (9) and accelerate the flow of cold water.

2. The automatic cooling plastic oil bottle injection molding device according to claim 1, characterized in that: The molding die (3) consists of a bottle body mold chamber (31) and a bottle bottom mold chamber (32). The bottle body mold chamber (31) has a recessed mold groove (311) on its surface. The bottle body mold chamber (31) has a cavity inside. The bottle body mold chamber (31) has holes on its outer surface that are connected to the cavity. The bottle body mold chamber (31) has clamping plates (312) on both sides. The inner side of the clamping plate (312) is a cavity that is connected to the cavity of the bottle body mold chamber (31).

3. The automatic cooling plastic oil bottle injection molding device according to claim 2, characterized in that: The lower end of the bottle body mold compartment (31) is provided with an array of round holes that communicate with the bottle bottom mold compartment (32). The inside of the bottle bottom mold compartment (32) is hollow, and the bottom of the bottle bottom mold compartment (32) is connected to a drainage pipe (321).

4. The automatic cooling plastic oil bottle injection molding device according to claim 1, characterized in that: The flow guiding mechanism (6) includes an input end (61) and an output end (62). An output flow guiding fan blade is provided inside the output end (62), and an input fan (611) is provided inside the input end (61) to guide air in. An electric heating component (612) is provided at the lower end of the input fan (611) to heat the incoming air. A conical pipe is provided at the connection position between the input end (61) and the air guiding pipe (5) to allow the airflow to enter smoothly.

5. The automatic cooling plastic oil bottle injection molding device according to claim 2, characterized in that: The ventilation system (4) includes a distribution cylinder (41), which is connected to the air duct (5). A bend (42) is provided on the surface of the distribution cylinder (41), and a filter plate (43) is connected to the bend (42). The filter plate (43) is connected to the clamping plate (312).

6. The automatic cooling plastic oil bottle injection molding device according to claim 5, characterized in that: The air guide duct (5) is curved in an "S" shape. The protruding part of the air guide duct (5) is connected to an arc-shaped pipe (51). The arc-shaped pipe (51) is connected to the distribution cylinder (41). The input end (61) of the flow guiding mechanism (6) is located at the upper end of the air guide duct (5), and the output end (62) is located at the lower end of the air guide duct (5).

7. The automatic cooling plastic oil bottle injection molding device according to claim 2, characterized in that: The sealing assembly (8) includes a sealing gear (81) driven by a motor. The surface of the sealing gear (81) is meshed with an arc-shaped toothed plate (82). A shielding grid (83) is fixedly connected to the end face of the arc-shaped toothed plate (82). The shielding grid (83) is attached to the outside of the bottle mold chamber (31) to seal the holes on the outer surface of the bottle mold chamber (31). The package compartment (7) is divided into two chambers. One chamber is wrapped around the outside of the shielding grid (83) and has a round hole on its surface that connects to the external cold water tank (9). The other chamber is wrapped around the outside of the arc-shaped toothed plate (82). The two chambers are connected by a through groove (71). A slider is provided at the connection position between the arc-shaped toothed plate (82) and the shielding grid (83). The slider slides inside the through groove (71). The arc-shaped toothed plate (82) fits against the surface of the through groove (71) to seal the through groove (71).

8. The automatic cooling plastic oil bottle injection molding device according to claim 1, characterized in that: The external cold water tank (9) consists of two chambers, an upper chamber for a water storage tank (91) and a lower chamber for an operating chamber (92). The surface of the water storage tank (91) is provided with several sets of cooling pipes (911) that are connected to the packaging chamber (7). The upper end of the water storage tank (91) is connected to a water inlet pipe (912) for replenishing cold water. The lower end of the surface of the water storage tank (91) is provided with a discharge valve (913). The discharge valve (913) is opposite to the position of the cooling pipes (911). The water storage tank (91) and the operating chamber (92) are separated by a partition plate (93). The surface of the partition plate (93) is provided with a connecting groove (931).

9. The automatic cooling plastic oil bottle injection molding device according to claim 8, characterized in that: The water squeezing mechanism (10) includes a spindle (101), which is located at the center of the external cold water tank (9). The spindle (101) passes through the water storage tank (91) and the operating chamber (92). A first extrusion plate (102) is sleeved on the outside of the spindle (101). A first external toothed ring (103) is provided at the lower end of the first extrusion plate (102). The first extrusion plate (102) is inside the water storage tank (91), and the first external toothed ring (103) is inside the operating chamber (92). A motor-driven squeezing gear (104) is provided on the inner side of the spindle (101). The squeezing gear (104) meshes with the first external gear ring (103). A second extrusion plate (105) is sleeved on the outer side of the spindle (101). The lower end of the second extrusion plate (105) is connected to a second internal gear ring (106) through a slider. The slider slides inside the connecting groove (931). The second internal gear ring (106) is rotatably connected to the partition plate (93). The inner teeth of the second internal gear ring (106) mesh with the squeezing gear (104).

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