Plastic mold cooling mechanism

Abstract

The utility model relates to the technical field of plastic mold cooling mechanisms, and provides a plastic mold cooling mechanism which comprises a lower mold, an upper mold, a base, a cooling device and a support, the cooling device is provided with a fan, a filter screen and a ventilation pipeline, a fixing groove is formed in the side, facing the lower mold, of the upper mold, the lower mold is embedded in the fixing groove, and the support is provided with a cooling fan. A fixing groove is formed in the upper die, a plurality of air inlets are formed in each side face of the fixing groove, a waste gas channel is formed in the upper die, the air inlets are communicated with the waste gas channel, the waste gas channel is communicated with a ventilation pipeline, the upper die is provided with a heat dissipation air channel, and the heat dissipation air channel is communicated with the waste gas channel. By means of the technical scheme, the problems that in the prior art, a waste gas treatment structure can only treat waste gas on the two sides, waste gas on the other two sides is difficult to treat, and workers still easily inhale the waste gas are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic mold cooling mechanisms, and in particular to a plastic mold cooling mechanism. Background Art

[0002] Plastic mold injection molding is a process widely used in the production of plastic products. Its basic principle is to inject molten plastic material into the mold and form the desired shape and structure inside the mold. However, the heat of the molten plastic during the plastic injection molding process can cause the mold and plastic parts to overheat, increasing the plastic shaping time, which in turn affects production efficiency and product quality. Therefore, the cooling system plays a vital role in plastic mold injection molding.

[0003] The prior art discloses a plastic mold cooling mechanism, which belongs to the field of plastic production technology, including a lower mold body, an injection cavity is opened at the upper end of the lower mold body, a cooling liquid cavity is opened inside the lower mold body, a circulating pump is connected to the inner wall of the cooling liquid cavity, a cooling pipe is connected to the output end of the circulating pump, the cooling pipe is arranged in the lower mold body, the tail end of the cooling pipe is arranged in the cooling liquid cavity, one end of the lower mold body is connected to a liquid adding pipe, a U-shaped plate is arranged at the outer end of the lower mold body, an electric push rod cylinder is connected to the upper end of the U-shaped plate, the output end of the electric push rod cylinder passes through one end of the U-shaped plate and is connected to the upper mold body, the lower end of the upper mold body is connected to the upper mold plate, jacks are opened on both sides of the U-shaped plate, and impurity removal mechanisms are arranged on both sides of the lower mold body. The prior art realizes the action of processing the waste gas generated during the injection molding process to prevent the staff from inhaling the waste gas and causing harm to the body.

[0004] However, the impurity removal mechanism in the above-mentioned prior art is only arranged on both sides of the lower mold body, and the waste gas generated during the injection molding process diffuses around the lower mold body. The prior art can only process the waste gas on both sides of the lower mold body, and it is difficult to process the waste gas on the other two sides. The staff can still easily inhale the waste gas. Utility Model Content

[0005] The utility model provides a plastic mold cooling mechanism, which solves the problem that the waste gas processing structure in the related art can only process the waste gas on two sides, but is difficult to process the waste gas on the other two sides, and the workers are still prone to inhaling the waste gas.

[0006] The technical solution of the utility model is as follows:

[0007] A plastic mold cooling mechanism comprises a lower mold, an upper mold, a base, a cooling device, and a bracket, wherein the lower mold is fixedly connected to the base, the bracket is fixedly connected to the side of the base, a push rod tube is provided on the bracket, the upper mold is fixedly connected to the push rod in the push rod tube, a motor is provided on the push rod tube, the cooling device is located on one side of the base, the cooling device is provided with a fan, a filter, and a ventilation duct, a fixed groove is provided on the side of the upper mold facing the lower mold, the lower mold is embedded in the fixed groove, a plurality of air inlets are provided on each side of the fixed groove, an exhaust gas channel is provided inside the upper mold, the air inlet is communicated with the exhaust gas channel, the exhaust gas channel is communicated with the ventilation duct, the upper mold is provided with a heat dissipation duct, and the heat dissipation duct is communicated with the exhaust gas channel.

[0008] Furthermore, a heat dissipation plate is provided on the surface of the heat dissipation duct close to the lower mold, and an air inlet of the heat dissipation duct is close to a side of the upper mold away from the ventilation duct.

[0009] Furthermore, a heat dissipation pipe is provided between the base and the lower mold, and a water inlet and a water outlet are respectively provided at both ends of the heat dissipation pipe.

[0010] Furthermore, the filter is embedded in the cooling device from one side of the cooling device, the filter is detachably connected to the cooling device, the filter is located between the ventilation duct and the fan, and the filter is provided with a handle, which is located outside the cooling device.

[0011] Furthermore, the bracket is perpendicular to the lower mold and is provided with a limiting groove on one side facing the upper mold, the limiting groove extends from the connection between the bracket and the base to the push rod tube, and the surface of the upper mold facing the limiting groove is provided with a limiting protrusion, and the limiting protrusion is embedded in the limiting groove.

[0012] Furthermore, the fixing groove is provided with an anti-blocking groove, and the anti-blocking groove is located on a side of the fixing groove facing the lower mold, and the anti-blocking groove is close to the air inlet.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. The utility model pushes the upper mold toward the lower mold through the push rod tube, so that the lower mold is embedded in the fixed groove, so that the upper and lower molds are merged. At the same time, the air inlet on the side of the fixed groove will suck in the waste gas generated during the injection molding process, and through the ventilation duct, the waste gas is transported to the cooling device, and finally discharged after being filtered by the filter. Since the fixed groove is closed except for the embedding surface of the lower mold, and each side of the fixed groove is provided with an air inlet, the waste gas generated during the merging of the upper mold and the lower mold and the plastic molding process will be sucked in by the air inlet, thereby solving the problem that the waste gas treatment structure in the related technology can only treat the waste gas on both sides, and it is difficult to treat the waste gas on the other two sides, and the staff is still easy to inhale the waste gas.

[0015] 2. The utility model connects the heat dissipation duct and the exhaust gas duct of the upper mold, and finally connects them to the ventilation duct, so that the cooling device can simultaneously inhale the air in the fixed groove and the air in the heat dissipation duct, and simultaneously achieve exhaust gas removal and heat dissipation. When the upper mold and the lower mold are combined, the air inlet will be blocked by the lower mold, and the air in the exhaust gas duct will not circulate at this time, but the fan power of the cooling device will not change, so the flow rate of the air in the heat dissipation duct will increase, thereby making the air exchange in the heat dissipation duct more frequent, thereby improving the heat dissipation efficiency of the heat dissipation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial perspective view of the utility model, specifically showing the structure of the upper mold, the heat dissipation pipe, and the cooling device;

[0019] Figure 3 for Figure 2 Sectional view at AA;

[0020] Figure 4 This is a bottom view of the upper mold;

[0021] Figure 5 It is a perspective view of the upper mold, specifically showing the structures of the air inlet, exhaust gas channel, fixing groove, and anti-blocking groove;

[0022] Figure 6 for Figure 5 Cross-sectional view at BB;

[0023] In the figure: 1. lower mold; 2. upper mold; 3. base; 4. cooling device; 5. bracket; 6. heat dissipation pipe; 20. heat dissipation duct; 21. heat dissipation plate; 22. air inlet; 23. exhaust gas channel; 24. fixing groove; 25. anti-blocking groove; 26. limiting protrusion; 40. ventilation duct; 41. filter; 42. fan; 50. motor; 51. push rod tube; 52. limiting groove; 60. water inlet; 61. water outlet; 401. handle. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 to Figure 6 As shown, this embodiment proposes a plastic mold cooling mechanism, including a lower mold 1, an upper mold 2, a base 3, a cooling device 4, and a bracket 5. The lower mold 1 is fixedly connected to the base 3, and the bracket 5 is fixedly connected to the side of the base 3. A push rod barrel 51 is arranged on the bracket 5. The upper mold 2 is fixedly connected to an end of a push rod in the push rod barrel 51 close to the upper mold. A motor 50 is arranged on the push rod barrel 51. The motor 50 is fixedly connected to an end of a push rod in the push rod barrel 51 away from the upper mold 2. The cooling device 4 is located on one side of the base 3. The cooling device 4 is provided with a fan 42, a filter 41, and a ventilation duct 40. A fixed groove 24 is arranged on the side of the upper mold 2 facing the lower mold 1. The lower mold 1 is embedded in the fixed groove 24. A plurality of air inlets 22 are arranged on each side of the fixed groove 24. An exhaust passage 23 is arranged inside the upper mold 2. The air inlet 22 is communicated with the exhaust passage 23. The exhaust passage 23 is communicated with the ventilation duct 40. The upper mold 2 is provided with a heat dissipation duct 20, and the heat dissipation duct 20 is communicated with the exhaust passage 23.

[0026] In this embodiment, the motor 50 drives the push rod in the push rod tube 51 to push the upper mold 2 toward the lower mold 1. The cooling device 4 is used to suck the air in the exhaust gas channel 23 and the heat dissipation duct 20, so that the air in the exhaust gas channel 23 and the heat dissipation duct 20 can circulate, so as to achieve the effect of sucking exhaust gas and dissipating heat. Specifically, the cooling device 4 realizes the suction of air through the fan 42 arranged inside, communicates with the exhaust gas channel 23 and the heat dissipation duct 20 through the ventilation duct 40, and filters the exhaust gas through the filter 41. The ventilation duct 40 should be made of flexible materials, such as polyethylene, rubber, etc. The ventilation duct 40 made of flexible materials can be bent, stretched or twisted to a certain extent without breaking, so that the ventilation duct 40 can not be damaged during the movement of the upper mold 2. The length of the ventilation duct 40 should be longer than the maximum distance between the upper mold 2 and the cooling device 4, so as to ensure that the ventilation duct 40 can be stably connected with the upper mold 2 during the movement of the upper mold 2. The bracket 5 is used to support the push rod cylinder 51 and the upper mold 2 so that the upper mold 2 can move up and down. The bracket 5 is L-shaped, and the push rod cylinder 51 is arranged just above the lower mold 1. One end of the telescopic shaft of the push rod cylinder 51 is fixedly connected to the upper mold 2. The motor 50 drives the telescopic column forward to realize the up and down movement of the upper mold 2. The fixed groove 24 is used to make the upper mold 2 sleeve on the lower mold 1, so that during the merging process of the upper mold 2 and the lower mold 1, the waste gas generated by the plastic can all enter the air inlet 22 to prevent the waste gas from escaping. Specifically, during injection molding, the upper mold 2 moves downward so that the edge of the lower mold 1 enters the fixed groove 24. At this time, a closed space is formed between the lower mold 1 and the upper mold 2, and the waste gas generated by the plastic will be retained in the closed space. As the upper mold 2 continues to move downward, the air in the closed space will enter the waste gas channel 23 from the air inlet 22, and finally enter the cooling device 4 for filtration and discharge. The air inlet 22 is used to connect the fixed groove 24 with the exhaust channel 23, so that the air in the fixed groove 24 can enter the exhaust channel 23. The exhaust channel 23 is used to connect multiple air inlets 22, and connect these air inlets 22 with the ventilation duct 40, so that air can smoothly enter the cooling device 4. The heat dissipation duct 20 is used for heat dissipation, specifically air cooling. The heat dissipation duct 20 should be close to the contact surface of the upper mold 2 and the lower mold 1 to ensure rapid heat dissipation. The heat dissipation duct 20 should cover the contact surface of the upper mold 2 and the lower mold 1 to ensure the heat dissipation effect. The heat dissipation duct 20 is connected with the exhaust channel 23, and is connected with the ventilation duct 40 through the exhaust channel 23. The air in the heat dissipation duct 20 is discharged from the cooling device 4 through the exhaust channel 23 and the ventilation duct 40, realizing air circulation and heat dissipation.

[0027] In this embodiment, a heat sink 21 is provided on the surface of the heat dissipation duct 20 close to the lower mold 1, and the air inlet of the heat dissipation duct 20 is close to the side of the upper mold 2 away from the ventilation duct 40. The heat sink 21 is used to improve the heat dissipation effect. The material of the heat sink 21 should be a material with high thermal conductivity, such as copper, aluminum and the like. The heat sink 21 can quickly transfer heat to the air, thereby improving the heat dissipation effect of the heat dissipation duct 20. The air inlet of the heat dissipation duct 20 is arranged on the side of the upper mold 2 away from the ventilation duct 40, so that the external air can pass through the entire heat dissipation duct 20 after entering the heat dissipation duct 20, thereby increasing the time and space for heat exchange between the external air and the heat sink 21, thereby improving the heat dissipation effect.

[0028] In this embodiment, a heat dissipation pipe 6 is arranged between the base 3 and the lower mold 1, and a water inlet 60 and a water outlet 61 are arranged at both ends of the heat dissipation pipe 6. The heat dissipation pipe 6 is used to dissipate heat from the lower mold 1, specifically water cooling. The cooling water rushes into the heat dissipation pipe 6 through the water inlet 60 and is discharged from the heat dissipation pipe 6 from the water outlet 61. The heat dissipation pipe 6 should be close to the contact surface of the lower mold 1 and the upper mold 2 to achieve faster heat dissipation. The heat dissipation pipe 6 should cover the contact surface of the lower mold 1 and the upper mold 2 to ensure more efficient, fast and uniform heat dissipation; the water inlet 60 should be connected to the external water inlet pipe, and the water outlet 61 should be connected to the external drain pipe. A water tank can be arranged, and a water pump can be arranged in the water tank. The water in the water tank is pumped into the heat dissipation pipe 6 through the water inlet pipe and the water inlet 60 by the water pump, and then returned to the water tank through the drain port and the drain pipe to achieve water circulation to reduce the waste of water resources.

[0029] In this embodiment, the filter 41 is embedded in the cooling device 4 from one side of the cooling device 4, the filter 41 is detachably connected to the cooling device 4, the filter 41 is located between the ventilation duct 40 and the fan 42, and the filter 41 is provided with a handle 401, and the handle 401 is located outside the cooling device 4. The filter 41 is embedded in the cooling device 4 and is detachably connected, which is convenient for replacing the filter 41, and the handle 401 is used to facilitate the operator to remove the filter 41.

[0030] In this embodiment, the bracket 5 is perpendicular to the lower mold 1 and is provided with a limiting groove 52 on one side facing the upper mold 2. The limiting groove 52 extends from the connection between the bracket 5 and the base 3 to the push rod tube 51. The upper mold 2 is provided with a limiting protrusion 26 on the surface facing the limiting groove 52. The limiting protrusion 26 is embedded in the limiting groove 52. The combination of the limiting groove 52 and the limiting protrusion is used to limit the position of the upper mold 2 to prevent the upper mold 2 from deviating in position during the movement, resulting in failure to merge with the lower mold 1 smoothly.

[0031] In this embodiment, the fixed groove 24 is provided with an anti-blocking groove 25, which is located on the side of the fixed groove 24 facing the lower mold 1, and is close to the air inlet 22. The anti-blocking groove 25 is used to prevent the excess plastic from blocking the air inlet 22 during the extrusion molding process, causing the air to be unable to be discharged from the air inlet 22, and further causing the upper mold 2 and the lower mold 1 to be unable to merge smoothly. The setting of the anti-blocking groove 25 allows the excess plastic to be squeezed into the anti-blocking groove 25 instead of being squeezed onto the side wall of the fixed groove 24. The anti-blocking groove 25 is set on the side of the fixed groove 24 facing the lower mold 1, so that the anti-blocking groove 25 is closer to the plastic, so that the excess plastic can enter the anti-blocking groove 25 as soon as possible after being squeezed.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic mold cooling mechanism, comprising a lower mold (1), an upper mold (2), a base (3), a cooling device (4), and a bracket (5), wherein the lower mold (1) is fixedly connected to the base (3), the bracket (5) is fixedly connected to the side of the base (3), a push rod cylinder (51) is provided on the bracket (5), the upper mold (2) is fixedly connected to a push rod in the push rod cylinder (51), a motor (50) is provided on the push rod cylinder (51), the cooling device (4) is located on one side of the base (3), and the cooling device (4) is provided with a fan (42), a filter (41), and a ventilation duct (40), It is characterized in that A fixing groove (24) is provided on the side of the upper mold (2) facing the lower mold (1), the lower mold (1) is embedded in the fixing groove (24), each side of the fixing groove (24) is provided with a plurality of air inlets (22), an exhaust gas channel (23) is provided inside the upper mold (2), all the air inlets (22) are connected to the exhaust gas channel (23), the exhaust gas channel (23) is connected to the ventilation duct (40), and the upper mold (2) is provided with a heat dissipation duct (20), and the heat dissipation duct (20) is connected to the exhaust gas channel (23).

2. A plastic mold cooling mechanism according to claim 1, It is characterized in that A heat dissipation plate (21) is provided on the surface of the heat dissipation duct (20) close to the lower mold (1), and an air inlet of the heat dissipation duct (20) is close to a side of the upper mold (2) away from the ventilation duct (40).

3. A plastic mold cooling mechanism according to claim 1, It is characterized in that A heat dissipation pipe (6) is provided between the base (3) and the lower mold (1), and a water inlet (60) and a water outlet (61) are respectively provided at two ends of the heat dissipation pipe (6).

4. A plastic mold cooling mechanism according to claim 1, It is characterized in that The filter screen (41) is embedded in the cooling device (4) from one side of the cooling device (4); the filter screen (41) and the cooling device (4) are detachably connected; the filter screen (41) is located between the ventilation duct (40) and the fan (42); the filter screen (41) is provided with a handle (401); and the handle (401) is located outside the cooling device (4).

5. A plastic mold cooling mechanism according to claim 1, It is characterized in that The bracket (5) is perpendicular to the lower mold (1) and is provided with a limiting groove (52) on one side facing the upper mold (2). The limiting groove (52) extends from the connection between the bracket (5) and the base (3) to the push rod tube (51). The surface of the upper mold (2) facing the limiting groove (52) is provided with a limiting protrusion (26), and the limiting protrusion (26) is embedded in the limiting groove (52).

6. A plastic mold cooling mechanism according to claim 1, It is characterized in that The fixing groove (24) is provided with an anti-blocking groove (25), and the anti-blocking groove (25) is located on a side of the fixing groove (24) facing the lower mold (1), and the anti-blocking groove (25) is close to the air inlet (22).

Images