An efficient cooling device for injection molded parts

Abstract

The present invention relates to the technical field of injection molding production, and specifically relates to an efficient cooling device for injection molded parts, including a cooling cylinder, an upper mold base, and a first linear driver; a cooling assembly is further provided inside the cooling cylinder, and the cooling assembly includes a lower mold base, a first transmission pipe, a threaded rod, a first motor, and a pressing plate. It drives the threaded rod to rotate through the first motor, so that the first transmission pipe sleeve moves downward through the threaded hole. At this time, the pressing plate will follow the first transmission pipe and move downward to compress the coolant, so that the coolant flows in from the bottom end of the first transmission pipe and flows out from the first water outlet due to the pressure, enabling the connection between the injection molded part and the lower mold base to be cooled first, and then enabling the coolant to directly contact the outer surface of the injection molded part for cooling. By this method, it is convenient to make the cooling time of each part of the injection molded part similar, which is convenient to enhance the cooling efficiency. The ramp facilitates the coolant to slide down along the ramp, preventing the coolant from remaining inside the lower mold base and affecting the injection molding effect.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding production, and specifically relates to an efficient cooling device for injection molded parts. Background Art

[0002] After the injection molded parts are injection molded, they need to be cooled. The common cooling method is to put the injection molded parts into a cold water tank for cooling. It is necessary to use a lifting device to lift and lower the injection molded parts so that the injection molded parts are immersed in cold water for rapid cooling.

[0003] For existing efficient cooling devices for injection molded parts, such as an injection molding machine cooling device disclosed in patent number CN202111393948.4, by injecting an appropriate amount of water source into the water tank, then the water source is introduced into the liquid outlet pipe through the side pipe by a water pump, and then introduced into the serpentine pipe by the first hose. Thus, in cooperation with the use of the heat sink, the upper mold body can be cooled, thereby accelerating the molding of plastic products. This cooling method is similar to the method of using a lifting device to lift and lower the injection molded parts so that the injection molded parts are immersed in cold water for rapid cooling. However, due to the use of the lifting device, the temperature conduction at the connection between the injection molded part and the upper mold base or the upper mold base carrying the injection molded part is relatively low, thus affecting the cooling efficiency. And for the injection molding machine cooling device disclosed in patent number CN202111393948.4, due to the serpentine pipe inserted into the upper mold base, there may be residual liquid inside the serpentine, thus affecting the injection molding effect. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, an efficient cooling device for injection molded parts is provided, which can enhance the cooling effect without affecting the injection molding effect through a cooling component.

[0005] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0006] An efficient cooling device for injection molded parts, including a cooling cylinder, an upper mold base and a first linear drive. The inside of the cooling cylinder is filled with a coolant; a cooling component is also arranged inside the cooling cylinder, and the cooling component includes a lower mold base, a first transmission pipeline, a threaded rod, a first motor and a pressing plate; a first water outlet and a first transmission interface are respectively arranged at the upper and lower ends of the lower mold base. A ramp is arranged on the lower mold base on one side of the first water outlet, and the first water outlet is communicated with the first transmission interface; the first transmission pipeline is arranged inside the cooling cylinder, the top end of the first transmission pipeline is communicated with the first transmission interface, the bottom end of the first transmission pipeline is immersed in the coolant, and a circular first protrusion is also arranged inside the first transmission pipeline. A threaded hole is arranged on the first protrusion, and a plurality of uniformly distributed first through holes are also arranged on the first protrusion; the threaded rod is arranged inside the first transmission pipeline, and the threaded rod corresponds to the threaded hole inside the first transmission rod pipeline; the first motor is arranged at the bottom end of the cooling cylinder, and the first motor is connected with the threaded rod; the pressing plate is sleeved on the first transmission pipeline, and the pressing plate is located above the coolant.

[0007] Preferably, an external threaded column is arranged outside the first transmission interface, an internal threaded cylinder corresponding to the external threaded column is arranged at the top end of the first transmission pipeline, a first clamping groove is formed between the inner wall of the internal threaded cylinder and the outer surface of the first transmission pipeline, and the first clamping groove is clamped with the external threaded column.

[0008] Preferably, the lower mold base is arranged as a hollow structure inside, a plurality of uniformly distributed first reinforcing ribs are also arranged inside the lower mold base, and a plurality of uniformly distributed first openings are arranged at the top end of the lower mold base.

[0009] Preferably, a first water inlet is arranged at the bottom end of the first transmission pipeline, and both the pressing plate and the first water inlet are arranged in an umbrella shape.

[0010] Preferably, a plurality of uniformly distributed second reinforcing ribs are arranged at the bottom end of the pressing plate, a plurality of uniformly distributed third reinforcing ribs are arranged on the outer surface of the first water inlet, and support rings are respectively arranged on the second reinforcing ribs and the third reinforcing ribs.

[0011] Preferably, a support ring sleeve is also arranged inside the cooling cylinder, the support ring sleeve is located above the first water inlet, the support ring sleeve is arranged as a hollow structure, a plurality of uniformly distributed second clamping grooves are also arranged on the outer surface of the first water inlet, sliding rods are arranged on the second clamping grooves, and the sliding rods penetrate through the lower mold base, the support ring sleeve and the pressing plate. The top end of the sliding rod is connected with the lower mold base, the bottom end of the sliding rod is clamped with the second clamping groove, and the sliding rod is slidably connected with the support ring sleeve and the pressing plate.

[0012] Preferably, a rotary cavity is further provided on the cooling cylinder. A first elastic member and a push plate are provided at the top of the rotary cavity. The push plate is connected to the first elastic member. A plurality of uniformly distributed rotary ports are provided at the bottom of the cooling cylinder. The rotary ports communicate with the rotary cavity. A plurality of uniformly distributed second openings are further provided at the top of the cooling cylinder. The second openings communicate with the rotary cavity. A plurality of uniformly distributed first liquid return ports are provided on the cooling cylinder on one side of the support ring sleeve. The first liquid return ports communicate with the rotary cavity. A plurality of uniformly distributed second liquid return ports are further provided above the first liquid return ports of the coolant cylinder. A plugging mechanism is provided inside the first liquid return ports and the second liquid return ports.

[0013] Preferably, the plugging mechanism includes a first slot, a second slot, a first rotating shaft, a second rotating shaft, a first rotating block, a second rotating block, and a clamping plate. The first slot is provided on the first liquid return port. The connection between the first slot and the first liquid return port is set as an arc surface. The second slot is provided on the second liquid return port. The connection between the first slot and the first liquid return port is set as an arc surface. The first rotating shaft is provided inside the first liquid return port. The second rotating shaft is provided inside the second liquid return port. The first rotating block is provided on the first rotating shaft. The first rotating block is hinged to the first rotating shaft. A first pin and a first push rod are respectively provided at both ends of the first rotating block. The first slot is inclined. The weight of the first slot is greater than the weight of the first push rod. The first pin corresponds to the first slot. The second rotating block is provided on the first rotating shaft. The second rotating block is hinged to the second rotating shaft. A second pin and a second push rod are respectively provided at both ends of the second rotating block. The second pin corresponds to the second slot. The clamping plate is provided inside the cooling cylinder. A second elastic member with the same number and one-to-one correspondence as the second push rod is provided on the clamping plate.

[0014] Preferably, a limiting block is provided on both the first rotating block and the second transmission block. Limiting grooves corresponding to the limiting blocks are provided on both the first liquid return port and the second liquid return port.

[0015] Preferably, a connecting plate is further provided at the bottom end of the lower die base. A third clamping groove is provided on the connecting plate. A fourth clamping groove is further provided at the top end of the pressing plate. A third elastic member is provided between the third clamping groove and the fourth clamping groove. Both ends of the third elastic member are respectively provided inside the third clamping groove and the fourth clamping groove.

[0016] The beneficial effects of this application compared with the prior art are:

[0017] 1. This application starts the first motor to drive the threaded rod to rotate, causing the first transmission pipe sleeve to move downward through the threaded holes. At this time, the pressing plate will move downward with the first transmission pipe to compress the coolant, so that the coolant moves upward from the bottom end of the first transmission pipe due to the pressure and flows out from the first water outlet, enabling the connection between the injection molded part and the lower mold base to be cooled first. During the downward movement, the liquid will continuously gush out from the first water outlet through the first transmission pipe, so that the coolant directly contacts the outer surface of the injection molded part for cooling. By this method, it is convenient to make the cooling time of each part of the injection molded part similar and enhance the cooling efficiency. The ramp on one side of the first water outlet facilitates the coolant to slide downward along the ramp during the upward movement, so as to flow back from the first water outlet and prevent the coolant from remaining inside the lower mold base and affecting the injection molding effect. The first through hole on the first protrusion facilitates the flow of the coolant.

[0018] 2. This application sets the interior of the lower mold base to be hollow to facilitate the inflow of the coolant into the interior of the lower mold base, thereby enhancing the cooling effect. Setting multiple evenly distributed openings at the top of the lower mold base facilitates keeping the pressure at the top the same as the atmospheric pressure and enables the coolant to flow out. The first reinforcing rib is to enhance the support effect of the lower mold base and prevent the lower mold base from being deformed due to collision or pressure, thus affecting the cooling effect.

[0019] 3. This application makes the air pressure above the push plate the same as the atmospheric pressure through the second opening, so that the coolant will be transmitted into the rotary cavity from the inside of the rotary port due to the pressure. At this time, if in the downward pressing process, the pressing plate will cooperate with the blocking mechanism to block the first liquid return port and the second liquid return port, and the pressure inside the rotary cavity will also increase. Thus, the push plate overcomes the elastic force of the second linear elastic member for buffering to prevent damage to the rotary cavity caused by excessive air pressure. When in the upward movement process, the pressing plate will cooperate with the blocking mechanism to open the first liquid return port and the second liquid return port, so that the liquid flows into the rotary cavity from the second rotary port. The liquid will flow above the push plate and be transmitted downward by gravity, and then flow into the lower part of the pressing plate from the opened second liquid return port to complete the liquid return process. Description of the Drawings

[0020] Figure 1 is the three-dimensional view of this application;

[0021] Figure 2 is Figure 1 the partial enlarged view of point A of

[0022] Figure 3 is Figure 1 the partial enlarged view of point B of

[0023] Figure 4 is the top view of this application;

[0024] Figure 5 is Figure 4 a three-dimensional sectional view at the C-C section of

[0025] Figure 6 is Figure 5 an enlarged partial view at D of

[0026] Figure 7 is Figure 4 a three-dimensional sectional view at the C-C section of

[0027] Figure 8 is Figure 7 an enlarged partial view at E of

[0028] Figure 9 is Figure 4 a sectional view at the F-F section of

[0029] Figure 10 is Figure 4 a three-dimensional sectional view at the F-F section of

[0030] Figure 11 is Figure 10 an enlarged partial view at G of

[0031] Figure 12 is Figure 10 an enlarged partial view at H of

[0032] Figure 13 is Figure 10 an enlarged partial view at J of

[0033] The reference numerals in the figure are:

[0034] 1 - cooling cylinder; 1a - support ring sleeve; 1b - rotary cavity; 1b1 - first elastic member; 1b2 - push plate; 1c - rotary port; 1d - second opening; 1e - first liquid return port; 1e1 - first slot; 1e2 - limiting groove; 1f - second liquid return port; 1f1 - second slot; 1g - sealing mechanism; 1g1 - first rotating shaft; 1g2 - second rotating shaft; 1g3 - first rotating block; 1g4 - second rotating block; 1g5 - first pin; 1g6 - first push rod; 1g7 - second pin; 1g8 - second push rod; 1g9 - limiting block; 1h - clamping plate; 1h1 - second elastic member

[0035] 2 - lower die base; 2a - first water outlet; 2a1 - ramp; 2b - first transmission interface; 2b1 - external thread column; 2c - first reinforcing rib; 2d - first opening; 2e - connecting plate; 2e1 - third clamping groove

[0036] 3 - First transfer pipe; 3a - First convex part; 3a1 - Threaded hole; 3a2 - First through - hole; 3b - Internal - thread cylinder; 3b1 - First clamping groove; 3c - First water inlet; 3c1 - Third reinforcing rib; 3c2 - Support ring; 3c3 - Second clamping groove; 3c4 - Slide rod;

[0037] 4 - Threaded rod;

[0038] 5 - First motor;

[0039] 6 - Pressing plate; 6b - Fourth clamping groove; 6b1 - Third elastic part. Detailed implementation mode

[0040] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in combination with the drawings and specific implementation modes.

[0041] See Figures 1 to 13 As shown, an efficient cooling device for injection - molded parts includes a cooling cylinder 1, an upper mold base and a first linear driver. The inside of the cooling cylinder 1 is filled with a coolant; a cooling component is further arranged inside the cooling cylinder 1, and the cooling component includes a lower mold base 2, a first transfer pipe 3, a threaded rod 4, a first motor 5 and a pressing plate 6;

[0042] A first water outlet 2a and a first transfer interface 2b are respectively arranged at the upper and lower ends of the lower mold base 2. A ramp 2a1 is arranged on the lower mold base 2 on one side of the first water outlet 2a, and the first water outlet 2a is communicated with the first transfer interface 2b;

[0043] The first transfer pipe 3 is arranged inside the cooling cylinder 1. The top end of the first transfer pipe 3 is communicated with the first transfer interface 2b. The bottom end of the first transfer pipe 3 is immersed in the coolant. An annular first convex part 3a is further arranged inside the first transfer pipe 3. A threaded hole 3a1 is arranged on the first convex part 3a, and a plurality of uniformly distributed first through - holes 3a2 are also arranged on the first convex part 3a;

[0044] The threaded rod 4 is arranged inside the first transfer pipe 3, and the threaded rod 4 corresponds to the threaded hole 3a1 inside the first transfer rod pipe;

[0045] The first motor 5 is arranged at the bottom end of the cooling cylinder 1, and the first motor 5 is connected to the threaded rod 4;

[0046] The pressing plate 6 is sleeved on the first transfer pipe 3, and the pressing plate 6 is located above the coolant.

[0047] First, fill the inside of the cooling barrel with coolant. At this time, connect the lower mold base 2 to the cooling pipe through the first transmission interface 2b. At the same time, drive the threaded rod 4 to rotate through the first motor 5. The first transmission pipe 3 is designed to drive the lower mold base 2 to move upward through the threaded hole 3a1 corresponding to the threaded rod 4 until the bottom end of the lower mold base 2 is higher than the top end of the cooling cylinder 1. The pressing plate 6 sleeved on the first transmission pipe 3 will move along with the first transmission pipe 3, so that the pressing plate 6 is located above the coolant, which is convenient for the first linear actuator to drive the upper mold base to move downward to carry out the injection molding process to form an injection molded part. After the injection molded part is formed, the first linear actuator will drive the upper mold base to rise to separate the upper mold base from the injection molded part. The injection molded part will remain on the lower mold base 2. At this time, the first motor 5 is started again to drive the threaded rod 4 to rotate, so that the first transmission pipe 3 moves downward through the threaded hole 3a1. At this time, the pressing plate 6 will move downward along with the first transmission pipe 3 to compress the coolant, so that the coolant moves upward from the bottom end of the first transmission pipe 3 due to the pressure and flows out from the first water outlet 2a, so that the connection between the injection molded part and the lower mold base 2 can be cooled first. During the descending process, the liquid will continuously gush out from the first water outlet 2a through the first transmission pipe 3, so that the coolant is in direct contact with the outer surface of the injection molded part for cooling. By this method, it is convenient to make the cooling time of each part of the injection molded part similar and to enhance the cooling efficiency. The ramp 2a1 on one side of the first water outlet 2a is to prevent the coolant from sliding down along the ramp 2a1 during the rising process, so that the first water outlet 2a has a backflow and to prevent the inside of the lower mold base 2 from leaving coolant and affecting the injection molding effect. The first through hole 3a2 on the first protrusion 3a is to facilitate the circulation of the coolant. It should be noted that the first linear actuator is a cylinder, and the upper mold base is similar to the lower mold base 2, so it is not drawn in the figure.

[0048] See Figure 6 As shown, an external threaded column 2b1 is provided on the outside of the first transmission interface 2b, and an internal threaded cylinder 3b corresponding to the external threaded column 2b1 is provided at the top of the first transmission pipe 3. A first clamping groove 3b1 is formed between the inner wall of the internal threaded cylinder 3b and the outer surface of the first transmission pipe 3, and the first clamping groove 3b1 is clamped with the external threaded column 2b1.

[0049] The external threaded column 2b1 is provided on the outside of the first transmission interface 2b, which is convenient for the first transmission pipe 3 to be connected to the external threaded column 2b1 through the internal threaded cylinder 3b provided thereon, facilitating the installation and disassembly between the lower mold base 2 and the first transmission pipe 3. Then, through the first clamping groove 3b1 formed between the inner wall of the internal threaded cylinder 3b and the outer surface of the first transmission pipe 3, it is convenient to install an external sealing ring between the external threaded column 2b1 and the first clamping groove 3b1 to enhance the sealing effect and prevent the coolant from flowing out between the external threaded column 2b1 and the internal threaded cylinder 3b.

[0050] SeeFigure 3 and Figure 6 As shown in Figure 6 , the lower die base 2 is arranged as an internally hollow structure. A plurality of first reinforcing ribs 2c evenly distributed are further arranged inside the lower die base 2, and a plurality of first openings 2d evenly distributed are arranged at the top end of the lower die base 2.

[0051] The inside of the lower die base 2 is a hollow structure, which is convenient for the coolant to flow into the inside of the lower die base 2, thereby enhancing the cooling effect. And arranging a plurality of evenly distributed openings at the top end of the lower die base 2 is to make the pressure at its top end keep the same as the atmospheric pressure, which is convenient for the coolant to flow out. The first reinforcing ribs 2c are to enhance the supporting effect of the lower die base 2, preventing the lower die base 2 from being deformed due to collision or pressure, thus affecting the cooling effect. It should be noted that the openings are communicated with the internally hollow structure of the lower die base 2 for convenient coolant transmission. At the same time, a ramp 2a1 is also arranged inside it, which is convenient for the coolant to flow back through the first transmission interface 2b.

[0052] See Figure 5 and Figure 9 As shown in Figure 5 and Figure 9 , a first water inlet 3c is arranged at the bottom end of the first transmission pipe 3, and both the pressing plate 6 and the first water inlet 3c are arranged in an umbrella shape.

[0053] The pressing plate 6 being in an umbrella shape is to enhance the downward pressing effect of the pressing plate 6 on the coolant and strengthen the coolant transmission effect. And the first water inlet 3c being in an umbrella shape is to increase the contact area between the bottom end of the first pipe and the liquid, further strengthening the coolant transmission effect.

[0054] See Figure 5 and Figure 11 As shown in Figure 5 and Figure 11 , a plurality of second reinforcing ribs evenly distributed are arranged at the bottom end of the pressing plate 6, and a plurality of third reinforcing ribs 3c1 evenly distributed are arranged on the outer surface of the first water inlet 3c. Support rings 3c2 are penetrated through both the second reinforcing ribs and the third reinforcing ribs 3c1.

[0055] The second reinforcing ribs and the third reinforcing ribs 3c1 are respectively to enhance the supporting effect of the pressing plate 6 and the first water inlet 3c, preventing excessive resistance during the downward pressing process, resulting in deformation or damage of the pressing plate 6 or the first water inlet 3c, affecting the coolant transmission. The support rings 3c2 being penetrated through the second reinforcing ribs and the third reinforcing ribs 3c1 is to make the force between multiple second reinforcing ribs or multiple third reinforcing ribs 3c1 balanced, further strengthening the strength of the pressing plate 6 and the first water inlet 3c.

[0056] See Figure 9 and Figure 11As shown, a support ring sleeve 1a is further provided inside the cooling cylinder 1. The support ring sleeve 1a is located above the first water inlet 3c. The support ring sleeve 1a is provided with a hollow structure. A plurality of uniformly distributed second clamping grooves 3c3 are also provided on the outer surface of the first water inlet 3c. A sliding rod 3c4 is provided on the second clamping groove 3c3. The sliding rod 3c4 passes through the lower die base 2, the support ring sleeve 1a and the pressing plate 6. The top end of the sliding rod 3c4 is connected to the lower die base 2, the bottom end of the sliding rod 3c4 is clamped with the second clamping groove 3c3, and the sliding rod 3c4 is slidably connected to the support ring sleeve 1a and the pressing plate 6.

[0057] The support ring sleeve 1a is arranged above the first water inlet 3c, which is convenient for stabilizing the sliding rod 3c4 through the fixed support ring sleeve 1a, so that the first transmission pipe 3 and the lower die base 2 can be stably moved through the sliding rod 3c4. The clamping of the second clamping groove 3c3 and the bottom end of the sliding rod 3c4 is convenient for disassembling the sliding rod 3c4, making it easy to disassemble between the lower die base 2 and the first transmission pipe 3. It should be noted that the connection between the pressing plate 6 and the sliding rod 3c4 is made of flexible graphite material, thereby increasing the sealing effect.

[0058] See Figure 5 、 Figure 12 and Figure 13 As shown, a rotary cavity 1b is further provided on the cooling cylinder 1. A first elastic member 1b1 and a push plate 1b2 are provided at the top end of the rotary cavity 1b. The push plate 1b2 is connected to the first elastic member 1b1. A plurality of uniformly distributed rotary ports 1c are provided at the bottom end of the cooling cylinder 1. The rotary ports 1c communicate with the rotary cavity 1b. A plurality of uniformly distributed second openings 1d are also provided at the top end of the cooling cylinder 1. The second openings 1d communicate with the rotary cavity 1b. A plurality of uniformly distributed first liquid return ports 1e are provided on the cooling cylinder 1 on one side of the support ring sleeve 1a. The first liquid return ports 1e communicate with the rotary cavity 1b. A plurality of uniformly distributed second liquid return ports 1f are further provided directly above the first liquid return ports 1e of the coolant cylinder. A sealing mechanism 1g is provided inside the first liquid return ports 1e and the second liquid return ports 1f.

[0059] Due to the second opening 1d, the air pressure above the push plate 1b2 is the same as the atmospheric pressure. As a result, the coolant will be transferred from the inside of the rotary port 1c into the rotary cavity 1b due to the pressure. At this time, if it is in the downward pressing process, the pressing plate 6 will cooperate with the blocking mechanism 1g to block the first liquid return port 1e and the second liquid return port 1f. The pressure inside the rotary cavity 1b will also increase, and then the push plate 1b2 will overcome the elastic force of the second linear elastic member for buffering to prevent damage to the rotary cavity 1b caused by excessive air pressure. When in the upward movement process, the pressing plate 6 will cooperate with the blocking mechanism 1g to open the first liquid return port 1e and the second liquid return port 1f, so that the liquid flows into the rotary cavity 1b from the second liquid return port 1f. The liquid will flow above the push plate 1b2 and be transmitted downward by gravity, and then flow into the lower part of the pressing plate 6 from the opened first liquid return port 1e to complete the reflux process. It should be noted that multiple outwardly protruding N-shaped blades should be provided on the reflux cavity to facilitate blowing air from the outside to cool the liquid.

[0060] See Figure 2 、 Figure 12 and Figure 13 As shown, the blocking mechanism 1g includes a first slot 1e1, a second slot 1f1, a first rotating shaft 1g1, a second rotating shaft 1g2, a first rotating block 1g3, a second rotating block 1g4, and a clamping plate 1h. The first slot 1e1 is provided on the first liquid return port 1e, and the connection between the first slot 1e1 and the first liquid return port 1e is set as an arc surface; the second slot 1f1 is provided on the second liquid return port 1f, and the connection between the first slot 1e1 and the first liquid return port 1e is set as an arc surface; the first rotating shaft 1g1 is provided inside the first liquid return port 1e; the second rotating shaft 1g2 is provided inside the second liquid return port 1f; the first rotating block 1g3 is provided on the first rotating shaft 1g1, and the first rotating block 1g3 is hinged to the first rotating shaft 1g1. A first pin 1g5 and a first push rod 1g6 are respectively provided at both ends of the first rotating block 1g3. The first slot 1e1 is inclined, and the weight of the first slot 1e1 is greater than the weight of the first push rod 1g6. The first pin 1g5 corresponds to the first slot 1e1; the second rotating block 1g4 is provided on the first rotating shaft 1g1, and the second rotating block 1g4 is hinged to the second rotating shaft 1g2. A second pin 1g7 and a second push rod 1g8 are respectively provided at both ends of the second rotating block 1g4. The second pin 1g7 corresponds to the second slot 1f1; the clamping plate 1h is provided inside the cooling cylinder 1, and a second elastic member 1h1 with the same number and one-to-one correspondence as the second push rod 1g8 is provided on the clamping plate 1h.

[0061] When the pressing plate 6 is in the downward pressing process, it will abut against the first push rod 1g6, so that the first rotating block 1g3 rotates on the first rotating shaft 1g1, and the first pin 1g5 is inserted into the first slot 1e1 to facilitate the blocking of the first liquid return port 1e. At this time, the second push rod 1g8 is subjected to the elastic force of the second elastic member 1h1, so that it drives the second rotating block 1g4 to rotate on the second rotating shaft 1g2, and the second pin 1g7 is inserted into the second slot 1f1 to facilitate the blocking of the second liquid return port 1f. If the pressing plate 6 is in the upward process, because the first slot 1e1 is inclined and the weight of the first slot 1e1 is greater than the weight of the first push rod 1g6, the first liquid return port 1e is easy to open. Then the pressing plate 6 will abut against the second push rod 1g8, thereby overcoming the elastic force of the second elastic member 1h1, and the second rotating block 1g4 rotates on the second rotating shaft 1g2, so that the second pin 1g7 disengages from the second slot 1f1, opening the second liquid return port 1f. The connection between the first slot 1e1 and the first liquid return port 1e is set as an arc surface, and the connection between the first slot 1e1 and the first liquid return port 1e is set as an arc surface, which is to facilitate the insertion of the two pins into the two slots to prevent jamming.

[0062] See Figure 12 and Figure 13 As shown, a limiting block 1g9 is provided on both the first rotating block 1g3 and the second transmission block, and limiting grooves 1e2 corresponding to the limiting block 1g9 are provided on both the first liquid return port 1e and the second liquid return port 1f.

[0063] The limiting groove 1e2 and the limiting block 1g9 can control the moving distance of the first transmission block and the second transmission block, preventing the first transmission block and the second transmission block from rotating too much, making it inconvenient for the pressing plate 6 to abut against the first push rod 1g6 and the second push rod 1g8 and drive them to move.

[0064] See Figure 2 As shown in and Figure / 6, a connecting plate 2e is further provided at the bottom end of the lower die base 2, a third clamping groove 2e1 is provided on the connecting plate 2e, a fourth clamping groove 6b is further provided at the top end of the pressing plate 6, and a third elastic member is provided between the third clamping groove 2e1 and the fourth clamping groove 6b. Both ends of the third elastic member are respectively arranged inside the third clamping groove 2e1 and the fourth clamping groove 6b.

[0065] The third elastic member enables the lower die base 2 to continue to move downward by overcoming the elastic force of the third elastic member when the pressing plate 6 abuts against the support ring sleeve 1a, so as to facilitate the whole lower die base 2 to be immersed in the coolant, thereby further enhancing the cooling effect. It should be noted that making the pressing plate 6 abut against the support ring sleeve 1a is to facilitate controlling the amount of coolant rising during its downward pressing process, preventing the coolant from continuously rising and causing waste of coolant flowing out of the cooling cylinder 1.

[0066] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. An efficient cooling device for injection molded parts, comprising a cooling cylinder (1), an upper mold base and a first linear driver, wherein the cooling cylinder (1) is filled with a coolant inside; characterized in that: Inside the cooling cylinder (1), a cooling component is further provided. The cooling component includes a lower die base (2), a first transmission pipe (3), a threaded rod (4), a first motor (5), and a pressing plate (6). At the upper and lower ends of the lower die base (2), a first water outlet (2a) and a first transmission interface (2b) are respectively provided. On one side of the first water outlet (2a) of the lower die base (2), a ramp (2a1) is provided, and the first water outlet (2a) communicates with the first transmission interface (2b). The first transmission pipe (3) is arranged inside the cooling cylinder (1). The top end of the first transmission pipe (3) communicates with the first transmission interface (2b). The bottom end of the first transmission pipe (3) is immersed in the coolant. Inside the first transmission pipe (3), a circular first protrusion (3a) is further provided. A threaded hole (3a1) is provided on the first protrusion (3a), and a plurality of uniformly distributed first through holes (3a2) are also provided on the first protrusion (3a). The threaded rod (4) is arranged inside the first transmission pipe (3), and the threaded rod (4) corresponds to the threaded hole (3a1) inside the first transmission rod pipe. The first motor (5) is arranged at the bottom end of the cooling cylinder (1), and the first motor (5) is connected to the threaded rod (4). The pressing plate (6) is sleeved on the first transmission pipe (3), and the pressing plate (6) is located above the coolant.

2. The high-efficiency cooling device for injection molded parts according to claim 1, characterized in that, An external threaded column (2b1) is provided outside the first transmission interface (2b). An internal threaded cylinder (3b) corresponding to the external threaded column (2b1) is provided at the top end of the first transmission pipe (3). A first clamping groove (3b1) is formed between the inner wall of the internal threaded cylinder (3b) and the outer surface of the first transmission pipe (3), and the first clamping groove (3b1) is clamped with the external threaded column (2b1).

3. The high-efficiency cooling device for injection molded parts according to claim 1, characterized in that, The lower die base (2) is arranged as a hollow structure inside. A plurality of uniformly distributed first reinforcing ribs (2c) are further provided inside the lower die base (2), and a plurality of uniformly distributed first openings (2d) are provided at the top end of the lower die base (2).

4. An efficient cooling device for injection molded parts according to claim 1, characterized in that, A first water inlet (3c) is provided at the bottom end of the first transmission pipe (3). Both the pressing plate (6) and the first water inlet (3c) are arranged in an umbrella shape.

5. The efficient cooling device for injection molded parts according to claim 4, characterized in that, A plurality of uniformly distributed second reinforcing ribs are provided at the bottom end of the pressing plate (6). A plurality of uniformly distributed third reinforcing ribs (3c1) are provided on the outer surface of the first water inlet (3c). Support rings (3c2) are penetrated through both the second reinforcing ribs and the third reinforcing ribs (3c1).

6. The highly efficient cooling device for injection molded parts according to claim 4, characterized in that, A support ring sleeve (1a) is further provided inside the cooling cylinder (1). The support ring sleeve (1a) is located above the first water inlet (3c). The support ring sleeve (1a) is arranged as a hollow structure. A plurality of uniformly distributed second clamping grooves (3c3) are also provided on the outer surface of the first water inlet (3c). A sliding rod (3c4) is provided on the second clamping groove (3c3). The sliding rod (3c4) penetrates through the lower die base (2), the support ring sleeve (1a), and the pressing plate (6). The top end of the sliding rod (3c4) is connected to the lower die base (2), the bottom end of the sliding rod (3c4) is clamped with the second clamping groove (3c3), and the sliding rod (3c4) is slidably connected with the support ring sleeve (1a) and the pressing plate (6).

7. An efficient cooling device for injection molded parts according to claim 6, characterized in that, A rotary cavity (1b) is further provided on the cooling cylinder (1). A first elastic member (1b1) and a push plate (1b2) are provided at the top of the rotary cavity (1b). The push plate (1b2) is connected to the first elastic member (1b1). A plurality of uniformly distributed rotary ports (1c) are provided at the bottom end of the cooling cylinder (1). The rotary ports (1c) are communicated with the rotary cavity (1b). A plurality of uniformly distributed second openings (1d) are further provided at the top end of the cooling cylinder (1). The second openings (1d) are communicated with the rotary cavity (1b). A plurality of uniformly distributed first liquid return ports (1e) are provided on one side of the support ring sleeve (1a) on the cooling cylinder (1). The first liquid return ports (1e) are communicated with the rotary cavity (1b). A plurality of uniformly distributed second liquid return ports (1f) are further provided directly above the first liquid return ports (1e) of the coolant cylinder. A plugging mechanism (1g) is provided inside the first liquid return ports (1e) and the second liquid return ports (1f).

8. The high-efficiency cooling device for injection molded parts according to claim 7, characterized in that, The plugging mechanism (1g) includes a first slot (1e1), a second slot (1f1), a first rotating shaft (1g1), a second rotating shaft (1g2), a first rotating block (1g3), a second rotating block (1g4), and a clamping plate (1h). The first slot (1e1) is provided on the first liquid return port (1e). The connection part between the first slot (1e1) and the first liquid return port (1e) is set as an arc surface. The second slot (1f1) is provided on the second liquid return port (1f). The connection part between the first slot (1e1) and the first liquid return port (1e) is set as an arc surface. The first rotating shaft (1g1) is provided inside the first liquid return port (1e). The second rotating shaft (1g2) is provided inside the second liquid return port (1f). The first rotating block (1g3) is provided on the first rotating shaft (1g1). The first rotating block (1g3) is hinged to the first rotating shaft (1g1). A first pin (1g5) and a first push rod (1g6) are respectively provided at both ends of the first rotating block (1g3). The first slot (1e1) is inclined. The weight of the first slot (1e1) is greater than the weight of the first push rod (1g6). The first pin (1g5) corresponds to the first slot (1e1). The second rotating block (1g4) is provided on the first rotating shaft (1g1). The second rotating block (1g4) is hinged to the second rotating shaft (1g2). A second pin (1g7) and a second push rod (1g8) are respectively provided at both ends of the second rotating block (1g4). The second pin (1g7) corresponds to the second slot (1f1). The clamping plate (1h) is provided inside the cooling cylinder (1). A second elastic member (1h1) with the same number as and corresponding to the second push rods (1g8) is provided on the clamping plate (1h).

9. An efficient cooling device for injection molded parts according to claim 8, characterized in that, A limiting block (1g9) is provided on both the first rotating block (1g3) and the second transmission block. Limiting grooves (1e2) corresponding to the limiting blocks (1g9) are provided on both the first liquid return port (1e) and the second liquid return port (1f).

10. The high-efficiency cooling device for injection molded parts according to claim 1, wherein, A connecting plate (2e) is further provided at the bottom end of the lower die base (2), a third clamping groove (2e1) is provided on the connecting plate (2e), a fourth clamping groove (6b) is further provided at the top end of the pressing plate (6), a third elastic member is provided between the third clamping groove (2e1) and the fourth clamping groove (6b), and two ends of the third elastic member are respectively arranged inside the third clamping groove (2e1) and the fourth clamping groove (6b).

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