Cooling device of plastic injection molding machine

Abstract

The utility model discloses a cooling device of a plastic injection molding machine, which comprises a mounting component, a driving component fixedly mounted below the mounting component, a cooling body mounted at one end of the driving component and used for wrapping and fixing a discharge pipe of the plastic injection molding machine, and a plurality of slide rails movably mounted on the driving component, the end, away from the mounting assembly, of the sliding rail is fixedly connected with a cooling assembly used for cooling the plastic molded product, the cooling assembly comprises a plurality of hollow oil tanks, the ends, close to each other, of the oil tanks are movably connected with heat conduction patches, and the positions of the oil tanks are adjusted through the heat conduction patches. A plurality of oil tanks are connected pairwise through a plurality of heat conduction patches, the forward and reverse rotation motor drives the double threaded rods to rotate so that the oil tanks can be close to one another, finally the oil tanks are fixed through the lower plate and the fixing bolts, and the upper oil tank and the lower oil tank are fixed through the mortise and tenon joint structure. Therefore, the whole oil tank can wrap and cool the charging barrels with different sizes.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically a cooling device for a plastic injection molding machine. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment for making various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are divided into vertical, horizontal, and all-electric types. Injection molding machines heat the plastic and apply high pressure to the molten plastic, causing it to be injected and fill the mold cavity. After injection molding, the molded material needs to be cooled so that it can maintain its current shape for a long time.

[0003] The prior art, disclosed in CN206568512U, provides a cooling device for a plastic injection molding machine, including a mounting plate, a fixing plate, and a cooling ring sleeved on the barrel. The fixing plate and the mounting plate are fixedly connected from top to bottom. The cooling ring is located below the mounting plate, with its upper end face abutting against the lower end face of the mounting plate. A first limiting mechanism is provided on the upper end face of the cooling ring, and a second limiting mechanism is provided on the lower end face of the mounting plate to limit the axial position of the cooling ring. The first and second limiting mechanisms are plugged and pulled together, with a clearance fit. This invention provides a cooling device for a plastic injection molding machine. The first limiting mechanism on the cooling ring and the second limiting mechanism on the mounting plate cooperate with each other, preventing damage to the cooling ring when it moves due to thermal expansion, avoiding bolt breakage, not affecting the normal operation of the plastic injection molding machine, reducing maintenance probability, improving production efficiency, and reducing production costs.

[0004] In the aforementioned patent, the first and second limiting mechanisms are connected by insertion and removal to prevent the cooling ring from being damaged when it moves due to thermal expansion, thus avoiding bolt breakage. However, the aforementioned patent uses a cooling ring of constant size to wrap around the barrel. This can lead to a situation where the size of the barrel and the cooling ring do not match, and the cooling ring or barrel cannot be completely wrapped around the barrel, greatly reducing the applicability of the injection molding machine cooling device to the barrel. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cooling device for a plastic injection molding machine, thereby solving the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides a cooling device for a plastic injection molding machine, comprising a mounting assembly, a drive assembly fixedly mounted below the mounting assembly, and a cooling body movably mounted at the end of the drive assembly away from the mounting assembly. The cooling body is used to enclose and fix the discharge pipe of the plastic injection molding machine. The cooling body includes multiple slide rails movably mounted on the drive assembly. A cooling component for cooling plastic molded products is fixedly connected to the end of each slide rail away from the mounting assembly. The cooling component includes multiple hollow oil tanks, and heat-conducting plates are movably connected to the ends of the multiple oil tanks that are close to each other. The positions of the multiple oil tanks are adjusted via the heat-conducting plates. This positional adjustment of the multiple oil tanks via the heat-conducting plates allows for adjustment according to specific conditions, improving the adjustability of the cooling device for the plastic injection molding machine.

[0007] Furthermore, a rotating shaft is fixedly installed on the oil tank, and the heat-conducting patch is fixedly installed on different rotating shafts. An oil inlet for adding cooling oil is provided on one side of the oil tank, and a detachable sealing cap is installed on the inlet to seal it. The detachable sealing cap on the inlet ensures the oil tank is sealed, improving the safety of the cooling device in the plastic injection molding machine.

[0008] Furthermore, a lower plate is fixedly connected to the bottom of the oil tank below, and multiple shafts are installed through the lower plate. Multiple fixing bolts for fixing the lower plate are movably installed on the shafts.

[0009] Furthermore, the drive assembly includes a housing fixed to the mounting assembly. A forward and reverse motor is fixedly mounted within a mounting frame on one side of the housing. A double-threaded rod is fixedly connected to the output end of the forward and reverse motor. A threaded hole is formed through the center of the slide rail. The double-threaded rod is connected to the slide rail through the threaded hole. A sliding groove is formed inside the housing, and the slide rail moves within the groove. This limited movement of the slide rail within the groove improves the operational accuracy of the internal structure of the cooling device of the plastic injection molding machine.

[0010] Furthermore, a button is fixedly connected to the outer wall of the housing near the reversible motor, and a controller is fixedly connected to the control box of the reversible motor. The controller is electrically connected to the button. This electrical connection allows the controller to directly trigger commands when the button is pressed, improving the intelligence of the cooling device's operation in the plastic injection molding machine.

[0011] Furthermore, a limiting component is fixedly installed on the top of the outer casing. The mounting assembly includes a top plate with a limiting hole at one end near the cooling body. The limiting component is adapted to the limiting hole. A mounting hole for mounting the top plate is provided on the side of the top plate away from the limiting hole. This mounting hole significantly improves the ease of installation of the cooling device in the plastic injection molding machine.

[0012] Furthermore, the chute is T-shaped. The T-shaped chute further improves the operational precision of the internal structure of the cooling device in the plastic injection molding machine. Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention connects multiple oil tanks in pairs using multiple heat-conducting patches, and uses a forward and reverse motor to rotate a double threaded rod to bring the oil tanks closer together. Finally, the tanks are fixed by a lower plate and fixing bolts, and the upper and lower oil tanks are fixed together by a tenon and mortise structure. This allows the entire oil tank to wrap and cool material cylinders of different sizes, greatly improving the practicality of the cooling device for plastic injection molding machines. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cooling device for a plastic injection molding machine according to the present invention.

[0016] Figure 2 This is a bottom view of the right side of the cooling device of a plastic injection molding machine according to the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the mounting component of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the drive component of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the cooling body of this utility model;

[0020] Figure 6 This is a partially enlarged three-dimensional structural diagram of the present invention, A.

[0021] In the diagram: 1. Mounting assembly; 2. Cooling body; 3. Drive assembly; 11. Top plate; 12. Limiting hole; 13. Mounting hole; 31. Limiting element; 32. Housing; 33. Slide groove; 34. Double threaded rod; 35. Button; 36. Forward and reverse motor; 21. Slide rail; 22. Threaded hole; 23. Cooling assembly; 24. Lower plate; 25. Fixing bolt; 26. Shaft; 231. Oil inlet; 232. Oil tank; 233. Sealing cover; 234. Rotating shaft; 235. Thermal pad. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model. Example

[0023] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6This application provides a further detailed description. A cooling device for a plastic injection molding machine includes a mounting assembly 1, a drive assembly 3 fixedly mounted below the mounting assembly 1, and a cooling body 2 movably mounted at the end of the drive assembly 3 away from the mounting assembly 1. The cooling body 2 is used to wrap and fix the discharge pipe of the plastic injection molding machine. The cooling body 2 includes multiple slide rails 21 movably mounted on the drive assembly 3. A cooling assembly 23 for cooling plastic molded products is fixedly connected at the end of the slide rails 21 away from the mounting assembly 1. The cooling assembly 23 includes multiple hollow oil tanks 232. Multiple oil tanks 232 are movably connected at their adjacent ends with heat-conducting pads 235. Their positions are adjusted via these heat-conducting pads 235. A rotating shaft 234 is fixedly mounted on each oil tank 232, and the heat-conducting pads 235 are fixedly mounted on different rotating shafts 234. One side of each oil tank 232 has an oil inlet 231 for adding cooling oil. A sealing cap 233 is detachably mounted on the oil inlet 231 to seal it. A lower plate 24 is fixedly connected to the bottom of the lower oil tank 232, through which a... Multiple shafts 26 are mounted on each shaft 26, with multiple fixing bolts 25 for fixing the lower plate 24. The drive assembly 3 includes a housing 32 fixed to the mounting assembly 1. A forward and reverse motor 36 is fixedly installed in the mounting frame on one side of the housing 32. A double threaded rod 34 is fixedly connected to the output end of the forward and reverse motor 36. A threaded hole 22 is opened through the center of the slide rail 21. The double threaded rod 34 is connected to the slide rail 21 through the threaded hole 22. A slide groove 33 is opened inside the housing 32, and the slide rail 21 moves within the slide groove 33. A button 35 is fixedly connected to the outer wall of the outer casing 32 near the reversible motor 36. A controller is fixedly connected to the control box of the reversible motor 36. The controller is electrically connected to the button 35. A limiting member 31 is fixedly installed on the top of the outer casing 32. The mounting assembly 1 includes a top plate 11. A limiting hole 12 is opened at the end of the top plate 11 near the cooling body 2. The limiting member 31 is adapted to the limiting hole 12. A mounting hole 13 for mounting the top plate 11 is opened on the side of the top plate 11 away from the limiting hole 12. The slide groove 33 is T-shaped.

[0024] The upper oil tank 232 has multiple grooves at its bottom, and the lower oil tank 232 has protrusions on its top. Therefore, the two oil tanks 232 are fixed by mortise and tenon joints during installation, which improves the ease of installation of the internal structure of the cooling device of the plastic injection molding machine.

[0025] Since the top plate 11 has a limiting hole 12 at the bottom and the outer shell 32 has a limiting component 31 installed on the top, the top plate 11 and the limiting component 31 are installed with high precision through a mortise and tenon structure, which improves the ease of installation of the cooling device of the plastic injection molding machine.

[0026] Since the double threaded rod 34 is a screw with different thread directions on both sides, when the forward and reverse motor 36 drives the double threaded rod 34 to rotate, it will directly bring the left and right slide rails 21 together or apart, thereby automating the overall installation of the cooling body 2 and improving the ease of operation of the cooling device of the plastic injection molding machine.

[0027] Among them, because the thermally conductive patch 235 has good ductility and thermal conductivity, when the positions of the four oil tanks 232 change, the ductile thermally conductive patch 235 will also change its shape and eventually adhere to the outer wall of the barrel. Its thermal conductivity can quickly guide the temperature of the cooling oil in the oil tank 232 to the barrel, thereby improving the cooling efficiency of the cooling device of the plastic injection molding machine for the molded product.

[0028] The working principle of this utility model is explained below: Unless otherwise specified, all internal mechanical structures of the cooling device of the plastic injection molding machine are fixed by threads. To allow for a more intuitive observation of the technical features, the bolt connections are appropriately concealed in the diagram. When using the cooling device of the plastic injection molding machine, the user needs to remove the sealing cap 233 from the oil inlet 231 and directly add cooling oil into the oil tank 232 through the oil inlet 231. Then, tighten the sealing cap 233. The user then passes the material cylinder to be cooled directly between the four oil tanks 232. Afterwards, the user... The forward and reverse motor 36 is started by pressing button 35. The started forward and reverse motor 36 controls the double threaded rod 34 to rotate forward or reverse, causing the oil tank 232 to move closer or further apart according to the diameter of the barrel. When the oil tank 232 is attached to the outer wall of the barrel, the user manually rotates the fixing bolt 25 to fix the lower plate 24. The oil tank 232 is then fixed by tenon and mortise joints through the grooves and protrusions on the upper and lower parts. This allows the cooling device of the plastic injection molding machine to fix barrels of different sizes during use, improving the applicability of the cooling device to barrels of the plastic injection molding machine.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A cooling device for a plastic injection molding machine, characterized in that, The system includes an installation component (1), a drive component (3) is fixedly installed below the installation component (1), a cooling body (2) is movably installed at the end of the drive component (3) away from the installation component (1), the cooling body (2) is used to wrap and fix the discharge pipe of the plastic injection molding machine, the cooling body (2) includes multiple slide rails (21) movably installed on the drive component (3), a cooling component (23) for cooling plastic molded products is fixedly connected at the end of the slide rails (21) away from the installation component (1), the cooling component (23) includes multiple hollow oil tanks (232), a heat-conducting patch (235) is movably connected at the end of the multiple oil tanks (232) that are close to each other, and the position of the multiple oil tanks (232) is adjusted by the heat-conducting patch (235).

2. The cooling device for a plastic injection molding machine according to claim 1, characterized in that: A rotating shaft (234) is fixedly installed on the oil tank (232), and the heat-conducting patch (235) is fixedly installed on different rotating shafts (234). An oil inlet (231) for adding cooling oil is opened on one side of the oil tank (232), and a sealing cap (233) for sealing the oil inlet (231) is detachably installed on the oil inlet (231).

3. The cooling device for a plastic injection molding machine according to claim 1, characterized in that: The bottom of the oil tank (232) below is fixedly connected to a lower plate (24), and multiple shafts (26) are installed through the lower plate (24). Multiple fixing bolts (25) for fixing the lower plate (24) are movably installed on the shafts (26).

4. The cooling device for a plastic injection molding machine according to claim 1, characterized in that: The drive assembly (3) includes a housing (32) fixed on the mounting assembly (1). A forward and reverse motor (36) is fixedly installed in the mounting frame on one side of the housing (32). A double threaded rod (34) is fixedly connected to the output end of the forward and reverse motor (36). A threaded hole (22) is opened through the center of the slide rail (21). The double threaded rod (34) is connected to the slide rail (21) through the threaded hole (22). A slide groove (33) is opened inside the housing (32). The slide rail (21) moves within the slide groove (33).

5. The cooling device for a plastic injection molding machine according to claim 4, characterized in that: A button (35) is fixedly connected to the outer wall of the outer casing (32) near the reversible motor (36). A controller is fixedly connected to the control box of the reversible motor (36). The controller is electrically connected to the button (35).

6. The cooling device for a plastic injection molding machine according to claim 4, characterized in that: The top of the outer shell (32) is fixedly installed with a limiting member (31). The mounting assembly (1) includes a top plate (11). A limiting hole (12) is opened at one end of the top plate (11) near the cooling body (2). The limiting member (31) is adapted to the limiting hole (12). A mounting hole (13) for mounting the top plate (11) is opened on the side of the top plate (11) away from the limiting hole (12).

7. The cooling device for a plastic injection molding machine according to claim 4, characterized in that: The groove (33) is T-shaped.

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