Environment-friendly and energy-saving plastic product forming machine

Abstract

The utility model belongs to the technical field of plastic forming, and particularly relates to an environment-friendly and energy-saving plastic product forming machine which comprises a forming bottom die and a forming top die, the forming top die corresponds to the forming bottom die, a die cavity is formed between the forming bottom die and the forming top die, a first water cooling cavity is formed in the forming bottom die, and a second water cooling cavity is formed in the forming top die. And a second water cooling cavity is formed in the forming top die, butt joint assemblies used for communicating the first water cooling cavity with the second water cooling cavity are symmetrically arranged between the top end of the forming bottom die and the bottom end of the forming top die, and a liquid inlet pipe and a liquid outlet pipe are arranged on one side of the forming bottom die. According to the utility model, injection molding is carried out after the molding bottom mold and the molding top mold are closed, after injection molding is completed, the first water cooling cavity and the second water cooling cavity are communicated through the butt joint assembly during mold closing, and cooling liquid is injected into the first water cooling cavity and the second water cooling cavity through the liquid inlet pipe, so that the upper surface and the lower surface of the mold cavity are subjected to heat dissipation and cooling, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plastic forming, specifically relates to an environmental protection and energy saving plastic product forming machine. BACKGROUND

[0002] The selection of plastic forming is mainly determined by the type (thermoplastic or thermosetting) of plastic, the initial form and the shape and size of the product, the commonly used method for processing thermoplastic plastic includes extrusion, injection forming, calendering, blow molding and thermoforming, and the general method for processing thermosetting plastic includes mold pressing, transfer molding and injection forming, and the plastic is formed on the plane through laminating, mold pressing and thermoforming, wherein injection molding is the commonly used method for plastic forming.

[0003] Generally, the injection molding machine is used, and when forming and cooling, a cooling cavity is arranged in the bottom die, and the cooling liquid flows into the cooling cavity in the bottom die to cool the plastic product from one side, so that the plastic product is not uniformly cooled, and the cooling efficiency is affected. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of environmental protection and energy saving plastic product forming machines, it is cooled to the upper and lower surfaces of die cavity, improve heat dissipation efficiency, to solve the problem presented in above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: an environmental protection and energy saving plastic product forming machine, including forming bottom die and forming top die, the forming top die is correspondingly arranged with forming bottom die, die cavity is arranged between the forming bottom die and forming top die, first water cooling cavity is arranged in the inside of the forming bottom die, second water cooling cavity is arranged in the inside of the forming top die, the butt joint component for connecting first water cooling cavity and second water cooling cavity is symmetrically arranged between the top of forming bottom die and the bottom of forming top die, one side of the forming bottom die is provided with liquid inlet pipe and liquid outlet pipe.

[0006] Further, the butt joint component includes a spout fixedly connected to the bottom end of the forming top die and a spout groove arranged at the top end of the forming bottom die, the top ends of the two spouts are respectively communicated with the middle portions of the two ends of the second water cooling cavity, one of the spout grooves is communicated with one end of the first water cooling cavity, the liquid outlet pipe is communicated with the other end of the first water cooling cavity, and one end of the liquid inlet pipe is communicated with the other spout groove.

[0007] Further, the spout is insertedly matched with the spout groove, a sealing ring is fixedly sleeved on the side wall of the spout, and a limiting ring is fixedly connected to the inner wall of the spout groove.

[0008] Further, a shunt component is slidably connected in the spout groove, a spring is fixedly connected to the bottom end of the shunt component, and the bottom end of the spring is fixedly connected to the bottom end of the spout groove.

[0009] Further, the shunt component includes a shunt column slidingly connected inside the slot, a first shunt cavity and a second shunt cavity distributed upwards and downwards are arranged inside the shunt column, a liquid outlet hole is arranged at the top end of the first shunt cavity, a first liquid inlet hole is arranged on the side wall of the first shunt cavity, a second liquid inlet hole is arranged on the side wall of the second shunt cavity, and a shunt hole is symmetrically arranged on the side wall of the second shunt cavity.

[0010] Further, the inside of the forming bottom die is symmetrically provided with connecting cavities, one end of two connecting cavities is communicated with one of the slots, and the other end of the two connecting cavities is communicated with the other slot.

[0011] Further, four corners of the bottom end of the forming top die are fixedly connected with positioning columns, and four corners of the top end of the forming bottom die are provided with positioning grooves matched with the positioning columns.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: after the forming bottom die and the forming top die are closed, the first water cooling cavity and the second water cooling cavity are communicated through the butt joint assembly when the mold is closed, the cooling liquid is injected into the inside of the first water cooling cavity and the second water cooling cavity through the liquid inlet pipe, so that the upper and lower surfaces of the mold cavity are cooled and cooled, the heat dissipation efficiency is improved, and the forming efficiency of the plastic product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a front sectional view of the utility model;

[0015] Figure 3 It is a three-dimensional structure schematic view of the utility model Figure 2 It is an enlarged structure schematic view of the utility model in local part A;

[0016] Figure 4 It is a three-dimensional structure schematic view of the utility model Figure 2 It is a sectional view of the utility model in A-A surface;

[0017] Figure 5 It is a front sectional view of the shunt component of the utility model.

[0018] In the drawings, the component list represented by each sign is as follows:

[0019] 1. Molding bottom mold; 11. First water-cooling cavity; 12. Connecting cavity; 13. Positioning groove; 2. Molding top mold; 21. Second water-cooling cavity; 22. Positioning pin; 3. Mold cavity; 4. Liquid inlet pipe; 5. Liquid outlet pipe; 6. Connecting assembly; 61. Insert pipe; 62. Slot; 63. Sealing ring; 64. Limiting ring; 65. Diverting component; 651. Diverting pin; 652. First diverting cavity; 653. Second diverting cavity; 654. First liquid inlet hole; 655. Second liquid inlet hole; 656. Liquid outlet hole; 657. Diverting hole; 66. Spring. Detailed Implementation

[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0021] like Figures 1-3 As shown, an environmentally friendly and energy-saving plastic product molding machine includes a molding bottom mold 1 and a molding top mold 2. The molding top mold 2 is correspondingly arranged with the molding bottom mold 1. A mold cavity 3 is provided between the molding bottom mold 1 and the molding top mold 2. A first water-cooling cavity 11 is provided inside the molding bottom mold 1, and a second water-cooling cavity 21 is provided inside the molding top mold 2. A docking assembly 6 for connecting the first water-cooling cavity 11 and the second water-cooling cavity 21 is symmetrically arranged between the top end of the molding bottom mold 1 and the bottom end of the molding top mold 2. An inlet pipe 4 and an outlet pipe 5 are provided on one side of the molding bottom mold 1.

[0022] According to the above structure, when producing plastic products, the bottom mold 1 and the top mold 2 are closed and injection molding is performed. After injection molding, the first water-cooling cavity 11 and the second water-cooling cavity 21 are connected through the docking component 6 when the mold is closed. Coolant is injected into the interior of the first water-cooling cavity 11 and the second water-cooling cavity 21 through the liquid inlet pipe 4, so as to dissipate heat and cool the upper and lower surfaces of the mold cavity 3, improve heat dissipation efficiency, and thus improve the molding efficiency of plastic products.

[0023] like Figures 3-5As shown, the docking assembly 6 includes a tube 61 fixedly connected to the bottom end of the molding top mold 2 and a slot 62 disposed at the top end of the molding bottom mold 1. The top ends of the two tubes 61 are respectively connected to the middle of the two ends of the second water-cooling cavity 21. One slot 62 is connected to one end of the first water-cooling cavity 11, the liquid outlet pipe 5 is connected to the other end of the first water-cooling cavity 11, and one end of the liquid inlet pipe 4 is connected to the other slot 62. The tubes 61 and slots 62 are inserted and fitted together. A sealing ring 63 is fixedly sleeved on the side wall of the tube 61. A limit ring 64 is fixedly connected to the inner wall of the slot 62. A diverter is slidably connected inside the slot 62. Component 65, the bottom end of the diversion component 65 is fixedly connected to a spring 66, the bottom end of the spring 66 is fixedly connected to the bottom end of the slot 62, the diversion component 65 includes a diversion column 651 slidably connected inside the slot 62, the diversion column 651 is provided with a first diversion cavity 652 and a second diversion cavity 653 distributed vertically inside, the top end of the first diversion cavity 652 is provided with an outlet hole 656, the side wall of the first diversion cavity 652 is provided with a first inlet hole 654, the side wall of the second diversion cavity 653 is provided with a second inlet hole 655, and the side wall of the second diversion cavity 653 is symmetrically provided with diversion holes 657.

[0024] According to the above structure, when the molding bottom mold 1 and the molding top mold 2 are connected, the insert tube 61 is inserted into the corresponding slot 62. During the insertion process, the insert tube 61 presses down on the diversion column 651. After the molding bottom mold 1 and the molding top mold 2 are closed, the first liquid inlet hole 654 corresponds to one end of the liquid inlet pipe 4. At this time, the coolant injected through the liquid inlet pipe 4 enters the interior of the first diversion cavity 652, enters the interior of the insert tube 61 through the liquid outlet hole 656, enters the interior of the second water-cooling cavity 21 through the insert tube 61, and then flows back to the interior of another first diversion cavity 652 through another insert tube 61, and then enters the interior of the first water-cooling cavity 11 through another first liquid inlet hole 654, and finally is discharged through the liquid outlet pipe 5, thereby forming a coolant return flow and improving the cooling effect. The sealing ring 63 can seal the gap between the insert tube 61 and the slot 62, thereby preventing coolant leakage.

[0025] like Figure 3 and 4 As shown, the molded bottom mold 1 has symmetrically arranged connecting cavities 12 inside. One end of the two connecting cavities 12 is connected to one of the slots 62, and the other end of the two connecting cavities 12 is connected to the other slot 62.

[0026] According to the above structure, when the bottom mold 1 and the top mold 2 are separated, as the insertion tube 61 moves upward, the spring 66 pushes the diversion component 65 to move upward as a whole. When the top end of the diversion component 65 contacts the bottom end of the limiting ring 64, the diversion component 65 stops moving. At this time, one end of the liquid inlet pipe 4 corresponds to the second liquid inlet hole 655. The coolant enters the interior of the second diversion cavity 653 through the second liquid inlet hole 655, and then enters the interior of the two connecting cavities 12 through the two diversion holes 657. Then it flows through the two connecting cavities 12 to the interior of another second diversion cavity 653, and then flows into the interior of the first water cooling cavity 11. Finally, it flows out through the liquid outlet pipe 5. After the bottom mold 1 and the top mold 2 are separated, the coolant can still circulate without the need to frequently start and stop the external pump body that pumps in the coolant.

[0027] like Figure 4 As shown, positioning posts 22 are fixedly connected to the four corners of the bottom of the top mold 2, and positioning grooves 13 that cooperate with the positioning posts 22 are provided at the four corners of the top of the bottom mold 1.

[0028] According to the above structure, the positioning pin 22 is inserted into the positioning groove 13 during mold closing, which improves the accuracy of mold closing and avoids misalignment between the insertion tube 61 and the slot 62, resulting in docking failure.

[0029] The working principle of this utility model is as follows: When producing plastic products, the molding bottom mold 1 and molding top mold 2 are closed and injection molded. After injection molding, the first water-cooling cavity 11 and the second water-cooling cavity 21 are connected through the docking assembly 6 during mold closing. Coolant is injected into the interior of the first water-cooling cavity 11 and the second water-cooling cavity 21 through the liquid inlet pipe 4, thereby dissipating heat and cooling the upper and lower surfaces of the mold cavity 3, improving heat dissipation efficiency, and thus improving the molding efficiency of the plastic product. When the molding bottom mold 1 and the molding top mold 2 are docked, the insertion tube 61 is inserted into the docking assembly. Inside the corresponding slot 62, during the insertion process, the insertion tube 61 presses downward against the diversion column 651. After the molding bottom mold 1 and molding top mold 2 are closed, the first liquid inlet hole 654 corresponds to one end of the liquid inlet pipe 4. At this time, the coolant injected through the liquid inlet pipe 4 enters the interior of the first diversion cavity 652, enters the interior of the insertion tube 61 through the liquid outlet hole 656, enters the interior of the second water-cooling cavity 21 through the insertion tube 61, and then flows back to the interior of another first diversion cavity 652 through another insertion tube 61, and then flows back to the interior of another first diversion cavity 652 through another... The coolant enters through the first inlet hole 654 into the first water-cooling chamber 11 and is eventually discharged through the outlet pipe 5, thus forming a coolant return flow and improving the cooling effect. The sealing ring 63 can seal the gap between the insert tube 61 and the slot 62, thereby preventing coolant leakage. When the forming bottom mold 1 and the forming top mold 2 separate, as the insert tube 61 moves upward, the spring 66 pushes the diversion component 65 to move upward as a whole. When the top end of the diversion component 65 contacts the bottom end of the limiting ring 64, the diversion component 65 stops moving. At this time, one end of the inlet pipe 4 corresponds to the second inlet hole 655. The coolant enters the interior of the second diversion chamber 653 through the second inlet hole 655, and then enters the interior of the two connecting chambers 12 through the two diversion holes 657. Then it flows through the two connecting chambers 12 to the interior of another second diversion chamber 653, and then to the interior of the first water cooling chamber 11. Finally, it flows out through the outlet pipe 5. After the bottom mold 1 and the top mold 2 are separated, the coolant can still circulate without the need to frequently start and stop the external pump body that pumps in the coolant.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An environmentally friendly and energy-saving plastic product forming machine comprising a forming bottom die (1) and a forming top die (2), characterized in that: The forming top die (2) is correspondingly arranged with the forming bottom die (1), a mold cavity (3) is arranged between the forming bottom die (1) and the forming top die (2), a first water cooling cavity (11) is arranged in the forming bottom die (1), a second water cooling cavity (21) is arranged in the forming top die (2), a butt joint assembly (6) for connecting the first water cooling cavity (11) and the second water cooling cavity (21) is symmetrically arranged between the top end of the forming bottom die (1) and the bottom end of the forming top die (2), and a liquid inlet pipe (4) and a liquid outlet pipe (5) are arranged on one side of the forming bottom die (1).

2. The environmentally friendly and energy-saving plastic product forming machine according to claim 1, characterized in that: The butt joint assembly (6) comprises a pipe (61) fixedly connected to the bottom end of the forming top die (2) and a slot (62) arranged at the top end of the forming bottom die (1), the top ends of the two pipe (61) are respectively communicated with the middle part of the two ends of the second water cooling cavity (21), one of the slot (62) is communicated with one end of the first water cooling cavity (11), the liquid outlet pipe (5) is communicated with the other end of the first water cooling cavity (11), and one end of the liquid inlet pipe (4) is communicated with the other slot (62).

3. The environmentally friendly and energy-saving plastic product forming machine according to claim 2, characterized in that: The pipe (61) is matched with the slot (62), a sealing ring (63) is fixedly arranged on the side wall of the pipe (61), and a limiting ring (64) is fixedly connected to the inner wall of the slot (62).

4. The environmentally friendly and energy-saving plastic product forming machine according to claim 3, characterized in that: The slot (62) is slidably connected with a shunt component (65), the bottom end of the shunt component (65) is fixedly connected with a spring (66), and the bottom end of the spring (66) is fixedly connected with the bottom end of the slot (62).

5. The environmentally friendly and energy-saving plastic product forming machine according to claim 4, characterized in that: The shunt component (65) comprises a shunt column (651) slidably connected in the slot (62), the shunt column (651) is provided with a first shunt cavity (652) and a second shunt cavity (653) arranged in an upper and lower distribution manner, the top end of the first shunt cavity (652) is provided with a liquid outlet hole (656), the side wall of the first shunt cavity (652) is provided with a first liquid inlet hole (654), the side wall of the second shunt cavity (653) is provided with a second liquid inlet hole (655), and the side wall of the second shunt cavity (653) is symmetrically provided with a shunt hole (657).

6. The environmentally friendly and energy-saving plastic product forming machine according to claim 5, characterized in that: The inside of the forming bottom die (1) is symmetrically provided with a connecting cavity (12), one end of the two connecting cavities (12) is communicated with one of the slots (62), and the other end of the two connecting cavities (12) is communicated with the other slot (62).

7. The environmentally friendly and energy-saving plastic product forming machine according to claim 6, characterized in that: The bottom end of the forming top die (2) is fixedly connected with a positioning column (22), and the top end of the forming bottom die (1) is provided with a positioning slot (13) matched with the positioning column (22).

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