Cooling mechanism for plastic reel injection mold

Abstract

The utility model relates to the technical field of injection mold cooling, and discloses a plastic reel injection mold cooling mechanism which comprises two mold bodies used for injection molding and further comprises a plurality of U-shaped flow guide pipes, a plurality of embedding grooves matched with the flow guide pipes are formed in three opposite and symmetrical side faces of the two mold bodies, and the U-shaped flow guide pipes are arranged in the embedding grooves. Communicated main flow pipes are fixedly mounted at the two ends of each flow guide pipe, and a water inlet hose and a water outlet hose are fixedly mounted on each main flow pipe. According to the utility model, the plurality of flow guide pipes for cooling water to flow independently are arranged, the cooling water enters the main flow pipe through the water inlet hose, the cooling water is divided into the plurality of flow guide pipes through the main flow pipe and flows to the direction of the water outlet hose, and the cooling water in each independent flow guide pipe exchanges heat with the mold body; and cooling water after heat exchange quickly flows out through the water outlet hose, so that the heat dissipation and cooling effects on the die body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling injection molds, in particular to a cooling mechanism for a plastic reel injection mold. Background Art

[0002] Plastic scrolls are generally produced by injection molding. Injection molds are a tool for producing plastic products and also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. When producing plastic scrolls, the heated and melted plastic is injected into the mold cavity by an injection molding machine under high pressure. After cooling and solidification, the molded plastic scroll is obtained. The injection mold will generate a lot of heat during the injection molding process, causing the entire mold to be in a hot state, so the injection mold needs to be cooled.

[0003] In order to improve the cooling effect of the injection mold, the prior art has made many improvements to the injection mold cooling mechanism. For example, the patent with the patent publication number of CN218227662U discloses an injection mold that is easy to dissipate heat, including a mold body, a heat transfer device is fixedly installed on the side of the mold body, a filter device is detachably installed inside the heat transfer device, and a heat recovery device is fixedly installed on the side of the heat transfer device. In the above scheme, when the raw material is injected into the mold body, the internal cold water enters the inside of the heat exchange partition through the water inlet pipe through the action of the heat exchanger, and then exchanges heat with the heat exchange tank to cool down and dissipate heat for the mold, and the generated hot water enters the inside of the heat exchanger to exchange heat, and the water after heat exchange enters the inside of the water tank for recovery. At the same time, the water exchanged again enters the inside of the water inlet pipe through the heat exchanger, and the water is cooled and dissipated by water cooling, so that the cooling effect is more ideal, the cooling waiting time is saved, and the production efficiency of the workpiece is improved. Filter cotton is set, so that the water inlet pipe enters the inside of the filter cotton for filtering, and the efficiency of heat transfer is improved.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] In the above-mentioned comparative document, the heat of the mold is transferred to the cooling water by the flow of cooling water in the heat exchange tank, and the heat of the mold is taken away by the cooling water. However, in actual operation, since the cooling water flows in a circular manner in the heat exchange tank, when the cooling water flows to the second half of the circular exchange tank, the temperature of the cooling water will become higher and higher. The closer the cooling water is to the drain pipe, the worse the cooling effect is, resulting in uneven cooling of the mold. Therefore, there is an urgent need in this field to improve the cooling mechanism of the plastic reel injection mold to solve the defects of the prior art. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a cooling mechanism for a plastic reel injection mold to improve the heat dissipation and cooling effect of the mold body.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic reel injection mold cooling mechanism, comprising two mold bodies for injection molding, and also comprising a plurality of U-shaped guide pipes, the two mold bodies are opposite to each other and three symmetrical sides are provided with a plurality of embedded grooves adapted to the guide pipes, both ends of the plurality of guide pipes are fixedly installed with connected main pipes, and the plurality of main pipes are respectively fixedly installed with water inlet hoses and water outlet hoses;

[0008] It also includes a filter box for filtering cooling water, the two water inlet hoses are connected to the inside of the filter box, a water inlet pipe is provided on the side of the filter box away from the water inlet hose, a filter plate is provided in the filter box, and a quick replacement unit is provided on the filter box, and the quick replacement unit is used to replace the filter plate without interrupting the flow of cooling water.

[0009] Preferably, the quick-change unit includes a movable plate that is sealed and plugged into the filter box, and the relative sides of the filter box are penetrated by a clearance opening that is adapted to the movable plate, and the clearance opening is sealed with the movable plate and the filter plate, and the movable plate is provided with two mounting openings that are adapted to the filter plate, and a connecting plate fixedly connected to one side of the movable plate is provided in the filter box, and an adjusting screw rod is rotatably connected between the inner side walls of the filter box, the adjusting screw rod penetrates the connecting plate and is threadedly connected to the connecting plate, one end of the adjusting screw rod penetrates the filter box and extends to the outside, and the side surface of one end of the adjusting screw rod located on the outside is threadedly connected to a limiting ring.

[0010] Preferably, a plurality of first fastening bolts are provided on the side surface of the movable plate, and one end of the first fastening bolt passes through the movable plate and is threadedly connected to the side surface of the filter plate.

[0011] Preferably, the main pipe is provided with a connector connected to the interior thereof, and the ends of the water inlet hose and the water outlet hose are rotatably connected with a threaded sleeve adapted to the connector.

[0012] Preferably, the back sides of the two mold bodies are both provided with mounting cover plates, and the mounting cover plates are penetrated by second fastening bolts, and one end of the second fastening bolts is threadedly connected to one side of the mold body.

[0013] Preferably, a plurality of heat dissipation slots are formed through the installation cover plate.

[0014] Preferably, one end of the adjusting screw rod located outside is fixedly connected to a rotating ring.

[0015] In view of the deficiencies of the prior art, the utility model provides a plastic reel injection mold cooling mechanism, which overcomes the deficiencies of the prior art. The beneficial effects of the utility model are:

[0016] 1. In the utility model, a plurality of guide pipes are provided for cooling water to flow separately. The cooling water enters the main pipe through the water inlet hose. The cooling water is divided into a plurality of guide pipes through the main pipe and flows toward the water outlet hose. The cooling water in each individual guide pipe exchanges heat with the mold body. The cooling water after heat exchange flows out quickly through the water outlet hose, thereby improving the heat dissipation and cooling effect on the mold body.

[0017] 2. In the utility model, a filter box is provided, and a filter plate is provided in the filter box. The filter plate filters impurities in the cooling water to prevent scaling in the guide pipe, reduce scaling on the inner wall of the guide pipe, thereby improving the heat conduction efficiency of the guide pipe and improving the heat dissipation and cooling efficiency of the mold body.

[0018] 3. In the utility model, a quick replacement unit is provided, and the cooperation of the moving plate, the connecting plate, the adjusting screw and the limiting ring facilitates the replacement of the filter plate, and there is no need to stop the water inlet pipe when replacing the filter plate.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure in which the cover plate, the guide tube and the mold body are separated in the utility model;

[0023] Figure 3 It is a structural schematic diagram of a partial cross-section of the filter box in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the movable plate in the utility model;

[0025] Figure 5 for Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 6 for Figure 4 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. mold body; 2. embedded groove; 3. guide pipe; 4. main pipe; 5. water inlet hose; 6. water outlet hose; 7. filter box; 8. water inlet pipe; 9. filter plate; 10. quick replacement unit; 11. moving plate; 12. clearance port; 13. installation port; 14. connecting plate; 15. adjusting screw rod; 16. limiting ring; 17. first fastening bolt; 18. connecting head; 19. threaded sleeve; 20. installation cover plate; 21. second fastening bolt; 22. heat dissipation groove; 23. rotating ring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Embodiment 1

[0030] See also Figure 1-Figure 6 A plastic reel injection mold cooling mechanism includes two mold bodies 1 for injection molding, and also includes a plurality of U-shaped guide pipes 3. The two mold bodies 1 are opposite to each other and symmetrically provided with a plurality of embedded grooves 2 adapted to the guide pipes 3 on three sides. Both ends of the plurality of guide pipes 3 are fixedly installed with connected main pipes 4, and a plurality of main pipes 4 are respectively fixedly installed with water inlet hoses 5 and water outlet hoses 6;

[0031] It also includes a filter box 7 for filtering cooling water. Two water inlet hoses 5 are connected to the inside of the filter box 7. A water inlet pipe 8 is provided on the side of the filter box 7 away from the water inlet hose 5. A filter plate 9 is provided in the filter box 7. A quick replacement unit 10 is provided on the filter box 7. The quick replacement unit 10 is used to replace the filter plate 9 without interrupting the flow of cooling water.

[0032] Specific implementation method in this embodiment: when the mold body 1 needs to be cooled, cooling water is pumped into the filter box 7 through an external water pump and a water inlet pipe 8 for filtration, and the filtered cooling water enters the main pipe 4 through a water inlet hose 5. The cooling water is diverted through the main pipe 4 to several guide pipes 3 and flows in the direction of the water outlet hose 6. The cooling water in each individual guide pipe 3 exchanges heat with the mold body 1, and the cooling water after heat exchange quickly flows out through the water outlet hose 6, thereby improving the heat dissipation effect of the mold body 1.

[0033] It should be noted that the cross-section of the guide tube 3 in this embodiment is rectangular and is adapted to the embedded groove 2, thereby increasing the contact area between the guide tube 3 and the mold body 1 and improving the heat exchange effect. The guide tube 3 is in contact with the three sides of the mold body 1, thereby improving the heat exchange effect on the mold body 1. At the same time, a filter box 7 is provided with a filter plate 9 in the filter box 7. The filter plate 9 filters impurities in the cooling water to prevent scaling in the guide tube 3. When the filter plate 9 needs to be replaced, the filter plate 9 can be quickly replaced without interrupting the flow of cold water through the quick replacement unit 10. The filter plate 9 can be replaced without stopping the machine, thereby improving the production efficiency of the overall device. Among them, the water inlet hose 5 and the water outlet hose 6 are hoses and will not affect the movement of the mold body 1.

[0034] Embodiment 2

[0035] See also Figure 1 , Figure 3 , Figure 4 and Figure 6 , this embodiment includes the above-mentioned embodiment, wherein the quick-change unit 10 includes a movable plate 11 sealed and plugged into the filter box 7, and the opposite sides of the filter box 7 are penetrated with a clearance opening 12 adapted to the movable plate 11, and the clearance opening 12 is sealed with the movable plate 11 and the filter plate 9, and the movable plate 11 is provided with two installation openings 13 adapted to the filter plate 9, and a connecting plate 14 fixedly connected to one side of the movable plate 11 is provided in the filter box 7, and an adjusting screw rod 15 is rotatably connected between the inner side walls of the filter box 7, the adjusting screw rod 15 penetrates the connecting plate 14 and is threadedly connected to the connecting plate 14, one end of the adjusting screw rod 15 penetrates the filter box 7 and extends to the outside, and the side surface of the end of the adjusting screw rod 15 located on the outside is threadedly connected to the limiting ring 16, and the end of the adjusting screw rod 15 located on the outside is fixedly connected to the rotating ring 23.

[0036] Specific implementation method in this embodiment: when the filter plate 9 needs to be replaced, the new filter plate 9 is installed in an installation opening 13 exposed to the outside, and the adjusting screw 15 is driven to rotate by rotating the rotating ring 23. The adjusting screw 15 rotates to drive the connecting plate 14 to move in the filter box 7, and then one end of the movable plate 11 is moved out of the clearance opening 12, and a sealing ring is provided in the clearance opening 12. When the movable plate 11 and the filter plate 9 move, the movable plate 11 and the filter plate 9 are still in a sealed state with the clearance opening 12. After the new filter plate 9 is completely moved into the filter box 7, the limiting ring 16 is tightened. The limiting ring 16 fixes the position of the adjusting screw 15, which is convenient for replacing the filter plate 9. There is no need to stop the water inlet pipe 8 when replacing the filter plate 9.

[0037] Implementation Three

[0038] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 , this embodiment includes all the above embodiments, which further includes: a plurality of first fastening bolts 17 are penetrated through the side of the movable plate 11, one end of the first fastening bolt 17 penetrates the movable plate 11 and is threadedly connected to the side of the filter plate 9, a connector 18 is provided on the main pipe 4 and is communicated with the interior thereof, and the ends of the water inlet hose 5 and the water outlet hose 6 are rotatably connected to the threaded sleeve 19 adapted to the connector 18, and the two mold bodies 1 are provided with mounting covers 20 on the back sides thereof, a second fastening bolt 21 is penetrated through the mounting covers 20, one end of the second fastening bolt 21 is threadedly connected to one side of the mold body 1, and a plurality of heat dissipation grooves 22 are penetrated through the mounting covers 20.

[0039] Specific implementation method in this embodiment: when installing the filter plate 9, the filter plate 9 is clamped in the installation port 13, one end of the first fastening bolt 17 passes through the movable plate 11 and one end thereof is threadedly connected to the threaded hole opened on the side of the filter plate 9, so as to facilitate the replacement of the filter plate 9. When the water inlet hose 5 and the water outlet hose 6 need to be connected and installed with the main pipe 4, they are threadedly connected to the side of the connector 18 through the threaded sleeve 19, so as to facilitate installation. After the guide tube 3 is clamped in the embedding groove 2, one end of the second fastening bolt 21 passes through the installation cover plate 20 and is threadedly connected to the threaded hole on the mold body 1, the guide tube 3 is fixed by the installation cover plate 20, and the contact area with the outside is increased through a plurality of heat dissipation grooves 22 to improve the heat dissipation effect.

[0040] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A plastic reel injection mold cooling mechanism, comprising two mold bodies (1) for injection molding, characterized in that: It also comprises a plurality of U-shaped flow guide pipes (3), wherein the two mold bodies (1) are opposite to each other and have three symmetrical sides each provided with a plurality of embedding grooves (2) adapted to the flow guide pipes (3), and both ends of the plurality of flow guide pipes (3) are fixedly mounted with a connected main flow pipe (4), and a water inlet hose (5) and a water outlet hose (6) are respectively fixedly mounted on the plurality of main flow pipes (4); It also includes a filter box (7) for filtering cooling water, the two water inlet hoses (5) are connected to the inside of the filter box (7), a water inlet pipe (8) is provided on the side of the filter box (7) away from the water inlet hoses (5), a filter plate (9) is provided in the filter box (7), and a quick replacement unit (10) is provided on the filter box (7), and the quick replacement unit (10) is used to replace the filter plate (9) without interrupting the flow of cooling water.

2. A plastic reel injection mold cooling mechanism according to claim 1, characterized in that: The quick-change unit (10) comprises a movable plate (11) which is sealed and plugged into the filter box (7); opposite sides of the filter box (7) are penetrated with a clearance opening (12) adapted to the movable plate (11); the clearance opening (12) is sealed with the movable plate (11) and the filter plate (9); the movable plate (11) is provided with two mounting openings (13) adapted to the filter plate (9); a connecting plate (14) fixedly connected to one side of the movable plate (11) is provided in the filter box (7); an adjusting screw rod (15) is rotatably connected between the inner side walls of the filter box (7); the adjusting screw rod (15) penetrates the connecting plate (14) and is threadedly connected to the connecting plate (14); one end of the adjusting screw rod (15) penetrates the filter box (7) and extends to the outside; the side surface of one end of the adjusting screw rod (15) located outside is threadedly connected to a limiting ring (16).

3. A plastic reel injection mold cooling mechanism according to claim 2, characterized in that: A plurality of first fastening bolts (17) are provided through the side surface of the movable plate (11); one end of the first fastening bolt (17) passes through the movable plate (11) and is threadedly connected to the side surface of the filter plate (9).

4. A plastic reel injection mold cooling mechanism according to claim 1, characterized in that: The main pipe (4) is provided with a connector (18) in communication with the interior thereof, and the ends of the water inlet hose (5) and the water outlet hose (6) are rotatably connected with a threaded sleeve (19) adapted to the connector (18).

5. A plastic reel injection mold cooling mechanism according to claim 1, characterized in that: The two mold bodies (1) are each provided with a mounting cover plate (20) on the back side thereof, and a second fastening bolt (21) passes through the mounting cover plate (20), and one end of the second fastening bolt (21) is threadedly connected to one side of the mold body (1).

6. A plastic reel injection mold cooling mechanism according to claim 5, characterized in that: The installation cover plate (20) is provided with a plurality of heat dissipation slots (22) extending therethrough.

7. A plastic reel injection mold cooling mechanism according to claim 2, characterized in that: One end of the adjusting screw rod (15) located outside is fixedly connected to a rotating ring (23).

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