Cooling system for injection moulds

Abstract

This invention relates to the field of injection mold technology and discloses a cooling system for injection molds, including an injection mold and a cooling system disposed on one side of the injection mold. The injection mold includes an upper mold and a lower mold disposed at the lower end of the upper mold. A flow-diverting cooling component is disposed on the inner side of the lower mold and is connected to the output end of the cooling system. The cooling system includes an air-cooling heat dissipation assembly and a liquid guide pipe disposed on one side of the air-cooling heat dissipation assembly. The other end of the liquid guide pipe is connected to a main solenoid valve. The input end of the main solenoid valve is provided with a liquid inlet main pipe, and the other end of the liquid inlet main pipe is connected to a coolant conveyor. The beneficial effect of this invention is that the flow-diverting cooling component can divide the coolant in the same main pipe into channels to the front and rear ends of the injection molded part and allow for a brief stay, so that the overall temperature difference of the injection molded part is small, the overall cooling is uniform, and thus the cooling effect is improved.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to a cooling system for injection molds. Background Technology

[0002] Injection molds are tools used to produce plastic products; they are also tools that give plastic products their complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into a mold cavity under high pressure using an injection molding machine, and after cooling and solidification, obtaining the molded product. Injection molds are classified into two types according to molding characteristics: thermosetting plastic molds and thermoplastic plastic molds; and according to molding process: transfer molds, blow molds, casting molds, thermoforming molds, hot press molds (compression molds), injection molds, etc. Among them, hot press molds can be further divided into three types according to overflow method: overflow type, semi-overflow type, and non-overflow type. Injection molds can be divided into two types according to gating system: cold runner molds and hot runner molds; and according to loading and unloading method: movable type and fixed type. A very important aspect of injection molds is the cooling system.

[0003] However, current injection mold cooling systems have a flow pattern where coolant flows in from the inlet and out from the outlet, cooling during the flow. When the coolant has flowed halfway through, its temperature is relatively high. At this point, the cooling effect on the latter half of the injection molded part is lower than that on the first half, resulting in poor overall cooling uniformity. This causes some parts to stick to the mold during demolding, making demolding very difficult. Furthermore, because there is residual heat in some areas of the mold before injection, if it is not cooled down in time, a large amount of coolant is needed for secondary cooling, leading to coolant waste.

[0004] To address the aforementioned problems, a cooling system for injection molds is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a cooling system for injection molds. During injection molding, the upper mold moves towards the lower mold, which drives the connecting rod and subsequently the push column. As the push column moves, it gradually inserts into the slot. At this point, the push column presses against the transmission head, which in turn presses against the transmission block. Once the transmission block is pressed to a certain position, the start switch is activated, initiating the cooling system. A small fan starts, causing airflow within the ventilation duct. Air passing through the filter flows around the secondary liquid guide pipe, where it exchanges heat with the coolant inside. The air is then drawn out by the small fan, enters through the air inlet, flows through the channel formed by the air inlet and outlet, and exits through the air outlet. The coolant flowing out of the secondary liquid guide pipe... After passing through the coolant mixer, the liquid is pushed by the conveying force of the liquid to drive the pusher groove, which in turn drives the rotating drum to rotate, causing the flowing coolant to be stirred again, so that the outer and inner layers of coolant are mixed evenly. The liquid stirred by the coolant mixer is divided into two flows by the first distributor plate. The coolant located at the upper end of the first distributor plate is buffered and blocked by the first barrier, which slows down the flow rate and increases the time it stays in the first barrier, thereby improving the utilization rate of the coolant. Finally, it flows out through the connecting pipe from the channel at the lower end of the second distributor plate. The coolant located at the lower end of the first distributor plate, since it is not blocked, will quickly flow through the connecting pipe to the upper end of the second distributor plate and be blocked by the second barrier. It can stay at the upper end of the second distributor plate and cool the rear half of the injection molded part, which can solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cooling system for an injection mold, comprising an injection mold and a cooling system disposed on one side of the injection mold, the injection mold comprising an upper mold and a lower mold disposed at the lower end of the upper mold, the lower mold having a flow-diverting cooling component disposed on the inner side, the flow-diverting cooling component being connected to the output end of the cooling system;

[0007] The cooling system includes an air-cooled heat dissipation component and a liquid guide pipe located on one side of the air-cooled heat dissipation component. The other end of the liquid guide pipe is connected to the main solenoid valve. The input end of the main solenoid valve is equipped with a liquid inlet pipe, and the other end of the liquid inlet pipe is connected to the coolant delivery device.

[0008] A connecting rod is provided in the middle of one side of the upper mold, and a push column is provided at the other end of the connecting rod. The push column has a conical structure and is inserted into the cooling start-up component provided in the middle of one side of the lower mold.

[0009] Furthermore, the cooling start-up assembly includes a support member and a transmission head disposed inside the support member. The transmission head has a hemispherical structure to facilitate the pushing of the push column. A transmission block is disposed at the other end of the transmission head, and a return spring is disposed at the other end of the transmission block. Two return springs are symmetrically disposed at the center of the transmission block.

[0010] Furthermore, a start switch is provided on the inner side of the support between the two return springs. The start switch is electrically connected to the main solenoid valve. The support also has a slot through which the transmission head is inserted, and the push column corresponds to the slot.

[0011] Furthermore, the air-cooled heat dissipation component includes a mounting shell and a filter screen located at the lower end of the inner side of the mounting shell. The mounting shell located at the upper end of the filter screen is provided with a secondary liquid guide pipe, which is connected to the liquid guide pipe. A ventilation channel is opened on the inner side of the mounting shell, and a small fan is provided at the upper end of the mounting shell located at the end of the ventilation channel.

[0012] Furthermore, the small fan is connected to the air inlet on one side of the lower mold, and the air inlet is connected to the air outlet on the other side of the lower mold. The air inlet and the air outlet are an integral channel, and the channel formed by the air inlet and the air outlet is located at the upper end of the split cooling component and is staggered from each other.

[0013] Furthermore, the diversion cooling component includes a coolant inlet and a coolant mixing component disposed inside the coolant inlet. The coolant inlet is connected to the output end of the secondary guide pipe. The coolant mixing component includes a support column and a support ring disposed on the upper end of the support column. A rotating cylinder is sleeved on the outer side of the support column located on the upper end of the support ring. The maximum diameter of the rotating cylinder is half the diameter of the coolant inlet. A pushing groove is opened on the outer side of the rotating cylinder, and the openings of the pushing grooves face the same direction to facilitate pushing and rotating.

[0014] Furthermore, the coolant injection port is connected to the coolant output port opened on the other side of the lower mold, and the coolant injection port and the coolant output port are an integral channel, with the coolant injection port and the coolant output port being half of the channel respectively.

[0015] Furthermore, a first distributor plate is provided in the middle of the coolant inlet, and a first barrier is provided on the upper side of the coolant inlet located at the upper end of the first distributor plate. The first barrier is inclined towards the outer end of the coolant inlet.

[0016] Furthermore, a second distributor is provided in the middle of the coolant outlet, and a second barrier is provided on the upper side of the coolant outlet located at the upper end of the second distributor. The second barrier is inclined towards the inner end of the coolant outlet. Both the first distributor and the second distributor are components made of BT epoxy resin material, which has poor thermal conductivity and effectively blocks heat conduction.

[0017] Furthermore, the lower side of the first distributor plate and the coolant inlet outlet is connected to the upper side of the second distributor plate and the coolant outlet inlet via a connecting pipe. The connecting pipe has a thicker structure at both ends and a thinner structure in the middle, ensuring that the coolant at the upper end of the first distributor plate can flow into the channel at the lower end of the second distributor plate and then flow out.

[0018] Compared with the prior art, the beneficial effects of the present invention are: a flow-diverting cooling component is provided on the inner side of the lower mold, and the flow-diverting cooling component is connected to the output end of the cooling system. The flow-diverting cooling component can divide the coolant in the same main pipe into the front and rear ends of the injection molded part and allow it to stay briefly, so that the overall temperature difference of the injection molded part is small, the overall cooling is uniform, and thus the cooling effect is improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the cooling system of the injection mold of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the injection mold for the cooling system of the injection mold of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal planar structure of the cooling start-up component of the cooling system of the injection mold of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the cooling system of the injection mold of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal planar structure of the air-cooled heat dissipation component of the cooling system of the injection mold of the present invention;

[0024] Figure 6 This is a schematic diagram of the cooling flow inside the lower mold of the injection mold cooling system of the present invention to the planar structure;

[0025] Figure 7 This is a three-dimensional structural diagram of the coolant mixing component of the cooling system of the injection mold of the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of the connecting pipe of the cooling system of the injection mold of the present invention.

[0027] In the diagram: 1. Injection mold; 11. Upper mold; 12. Lower mold; 121. Air inlet; 122. Air outlet; 123. Coolant inlet; 124. Coolant mixing component; 1241. Support column; 1242. Support ring; 1243. Rotating cylinder; 1244. Pushing groove; 125. First distributor plate; 126. First barrier; 127. Second distributor plate; 128. Second barrier; 129. Coolant outlet; 1210. Connection 1. Pipe; 13. Connecting rod; 14. Push column; 15. Cooling start assembly; 151. Support; 1511. Slot; 152. Transmission head; 153. Transmission block; 154. Return spring; 155. Start switch; 2. Cooling system; 21. Air-cooled heat dissipation assembly; 211. Mounting shell; 2111. Ventilation duct; 212. Filter screen; 213. Small fan; 22. Liquid guide pipe; 221. Auxiliary liquid guide pipe; 23. Main solenoid valve; 24. Main liquid inlet pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] See Figure 1 The cooling system of the injection mold includes the injection mold 1 and the cooling system 2 disposed on one side of the injection mold 1.

[0030] See Figure 2 The injection mold 1 includes an upper mold 11 and a lower mold 12 located at the lower end of the upper mold 11. A flow-diverting cooling component is provided on the inner side of the lower mold 12, and the flow-diverting cooling component is connected to the output end of the cooling system 2.

[0031] A connecting rod 13 is provided in the middle of one side of the upper mold 11, and a push column 14 is provided at the other end of the connecting rod 13. The push column 14 has a conical structure and is inserted into the cooling start assembly 15 provided in the middle of one side of the lower mold 12.

[0032] See Figure 3 The cooling system of the injection mold includes a cooling start assembly 15 comprising a support member 151 and a transmission head 152 disposed inside the support member 151. The transmission head 152 has a hemispherical structure, which facilitates the pushing of the push column 14. A transmission block 153 is disposed at the other end of the transmission head 152, and a return spring 154 is disposed at the other end of the transmission block 153. Two return springs 154 are symmetrically disposed at the center of the transmission block 153.

[0033] A start switch 155 is provided on the inner side of the support member 151 between the two reset springs 154. The start switch 155 is electrically connected to the main solenoid valve 23. The support member 151 also has a slot 1511 through which a transmission head 152 is inserted into the slot 1511, and the push post 14 corresponds to the slot 1511.

[0034] During injection molding, the upper mold 11 moves towards the lower mold 12, which drives the connecting rod 13 and then the push column 14. As the push column 14 moves, it gradually inserts into the slot 1511. At this time, the push column 14 presses the transmission head 152, and the transmission head 152 further presses the transmission block 153. After the transmission block 153 is pressed to a certain position, the start switch 155 is activated, which starts the cooling system 2 and initiates cooling. The injection and cooling are designed to start and stop synchronously, which not only ensures that the amount of coolant delivered is just right and does not waste coolant, but also eliminates the need for separate programming control of the solenoid valve, reducing the operational complexity of the injection mold.

[0035] See Figure 4 The cooling system of the injection mold includes an air-cooled heat dissipation component 21 and a liquid guide pipe 22 disposed on one side of the air-cooled heat dissipation component 21. The other end of the liquid guide pipe 22 is connected to the main solenoid valve 23. The input end of the main solenoid valve 23 is provided with a liquid inlet pipe 24, and the other end of the liquid inlet pipe 24 is connected to the coolant conveyor.

[0036] See Figure 5 The cooling system of the injection mold, the air-cooled heat dissipation component 21 includes a mounting shell 211 and a filter screen 212 disposed at the lower end of the inner side of the mounting shell 211. The mounting shell 211 located at the upper end of the filter screen 212 is provided with a secondary liquid guide pipe 221, which is connected to the liquid guide pipe 22. A ventilation channel 2111 is opened on the inner side of the mounting shell 211, and a small fan 213 is provided at the upper end of the mounting shell 211 located at the end of the ventilation channel 2111.

[0037] The small fan 213 is connected to the air inlet 121 on one side of the lower mold 12. The air inlet 121 is connected to the air outlet 122 on the other side of the lower mold 12. The air inlet 121 and the air outlet 122 are an integral channel. The channel formed by the air inlet 121 and the air outlet 122 is located at the upper end of the split cooling component and is staggered from each other.

[0038] The small fan 213 starts, which in turn drives the airflow inside the ventilation duct 2111. The air passing through the filter screen 212 flows around the auxiliary liquid guide pipe 221. At this time, the air exchanges heat with the coolant inside the auxiliary liquid guide pipe 221 and is drawn out by the small fan 213. It enters from the air guide inlet 121 and flows through the channel formed by the air guide inlet 121 and the air guide outlet 122, and flows out from the air guide outlet 122. First, the cool air conducted outward by the coolant inside the auxiliary liquid guide pipe 221 is used in a reasonable way, making reasonable use of resources. Then, when the drawn cool air flows through the channel, it can assist in the cooling of the injection mold and improve the cooling effect. Finally, during the injection interval, the airflow in the channel continues to flow, which can reduce the residual temperature of the mold in the un-injected state and facilitate secondary cooling.

[0039] See Figure 7 The cooling system of the injection mold includes a cooling distribution component comprising a coolant inlet 123 and a coolant mixing component 124 disposed inside the coolant inlet 123. The coolant inlet 123 is connected to the output end of the auxiliary guide pipe 221. The coolant mixing component 124 includes a support column 1241 and a support ring 1242 disposed on the upper end of the support column 1241. A rotating cylinder 1243 is sleeved on the outer side of the support column 1241 located on the upper end of the support ring 1242. The maximum diameter of the rotating cylinder 1243 is half the diameter of the coolant inlet 123. A pushing groove 1244 is provided on the outer side of the rotating cylinder 1243, and the openings of the pushing grooves 1244 face the same direction to facilitate pushing and rotating.

[0040] When the coolant flowing out from the secondary liquid guide pipe 221 passes through the coolant mixing component 124, it pushes the pusher trough 1244 under the liquid conveying force, which in turn pushes the rotating cylinder 1243 to rotate, so that the flowing coolant is stirred again, making the outer and inner layers of coolant evenly mixed, ensuring the cooling of the injection mold and improving the cooling effect.

[0041] See Figure 2 , Figure 6 and Figure 8 The coolant inlet 123 is connected to the coolant outlet 129 on the other side of the lower mold 12, and the coolant inlet 123 and the coolant outlet 129 are an integral channel, with the coolant inlet 123 and the coolant outlet 129 being half of the channel respectively. A first liquid distribution plate 125 is provided in the middle of the coolant inlet 123, and a first barrier 126 is provided on the upper side of the coolant inlet 123 located at the upper end of the first liquid distribution plate 125. The first barrier 126 is inclined towards the outer end of the coolant inlet 123.

[0042] A second distributor 127 is provided in the middle of the coolant outlet 129. A second barrier 128 is provided on the upper side of the coolant outlet 129 located at the upper end of the second distributor 127. The second barrier 128 is inclined towards the inner end of the coolant outlet 129. The first distributor 125 and the second distributor 127 are both components made of BT epoxy resin material, which is easy to process, has poor thermal conductivity, and effectively blocks heat conduction.

[0043] The lower side of the first distributor plate 125 and the coolant inlet 123 is connected to the upper side of the second distributor plate 127 and the coolant outlet 129 via a connecting pipe 1210. The connecting pipe 1210 has a structure that is thick at both ends and thin in the middle, ensuring that the coolant at the upper end of the first distributor plate 125 can flow into the channel at the lower end of the second distributor plate 127 and then flow out.

[0044] The liquid, after being stirred by the coolant mixer 124, is divided into two flows by the first distributor 125. The coolant at the upper end of the first distributor 125 is buffered and blocked by the first barrier 126, which slows down the flow rate and increases the time it stays in the first barrier 126, thus improving the utilization rate of the coolant. Finally, it flows out through the channel at the lower end of the second distributor 127 through the connecting pipe 1210. The coolant at the lower end of the first distributor 125, since it is not blocked, will quickly flow through the connecting pipe 1210 to the upper end of the second distributor 127 and be blocked by the second barrier 128. It can stay at the upper end of the second distributor 127, cooling the rear half of the injection molded part. The overall temperature difference of the injection molded part is small, and the overall cooling is uniform, thereby improving the cooling effect.

[0045] Working principle: During injection molding, the upper mold 11 moves towards the lower mold 12, which drives the connecting rod 13 and subsequently the push column 14. As the push column 14 moves, it gradually inserts into the slot 1511. At this time, the push column 14 presses the transmission head 152, which in turn presses the transmission block 153. After the transmission block 153 is pressed to a certain position, the start switch 155 is activated, starting the cooling system 2 and initiating cooling. The small fan 213 starts, which in turn drives the airflow inside the ventilation duct 2111. The air passing through the filter screen 212 flows around the auxiliary liquid guide pipe 221. At this time, the air exchanges heat with the coolant inside the auxiliary liquid guide pipe 221 and is drawn out by the small fan 213. It enters through the air inlet 121 and flows through the channel formed by the air inlet 121 and the air outlet 122, and flows out through the air outlet 122. The coolant flowing out of the liquid pipe 221 passes through the coolant mixing component 124. Under the force of the liquid transport, it pushes the pusher trough 1244, which in turn pushes the rotating cylinder 1243 to rotate, causing the flowing coolant to be stirred again, so that the outer and inner layers of coolant are mixed evenly. The liquid stirred by the coolant mixing component 124 is divided into two flows by the first distributor 125. The coolant located at the upper end of the first distributor 125 is buffered and blocked by the first barrier 126, which slows down the flow rate and increases the time it stays in the first barrier 126, thereby improving the utilization rate of the coolant. Finally, it flows out through the channel at the lower end of the second distributor 127 through the connecting pipe 1210. The coolant located at the lower end of the first distributor 125, since it is not blocked, will quickly flow through the connecting pipe 1210 to the upper end of the second distributor 127 and be blocked by the second barrier 128. It can stay at the upper end of the second distributor 127 to cool the rear half of the injection molded part.

[0046] Compared with the prior art, the beneficial effects of the present invention are:

[0047] 1. The cooling system for the injection mold proposed in this invention includes a push column 14 at the other end of the connecting rod 13. The push column 14 has a conical structure. A transmission block 153 is provided at the other end of the transmission head 152. A return spring 154 is provided at the other end of the transmission block 153. A start switch 155 is provided on the inner side of the support member 151 between the two return springs 154. The start switch 155 is electrically connected to the main solenoid valve 23. The push column 14 corresponds to the slot 1511. When the injection mold is performing injection molding, the upper mold 11 moves towards the lower mold 12, which drives the connecting rod 13. This causes the push column 14 to move. As the push column 14 moves, it gradually inserts into the slot 1511. At this time, the push column 14 squeezes the transmission head 152, and the transmission head 152 further squeezes the transmission block 153. After the transmission block 153 is squeezed to a certain position, the start switch 155 is activated. The start switch 155 starts the cooling system 2 and begins the cooling process. The injection and cooling are designed to start and stop synchronously, which not only ensures that the amount of coolant delivered is just right and does not waste coolant, but also eliminates the need to use a separate programmed control solenoid valve, reducing the operational complexity of the injection mold.

[0048] 2. The cooling system for the injection mold proposed in this invention includes a secondary liquid guide pipe 221 on the mounting shell 211 above the filter screen 212. A ventilation channel 2111 is provided on the inner side of the mounting shell 211. A small fan 213 is provided on the upper end of the mounting shell 211 at the end of the ventilation channel 2111. The small fan 213 is connected to an air inlet 121 on one side of the lower mold 12. The air inlet 121 and the air outlet 122 are an integral channel, and the channel formed by the air inlet 121 and the air outlet 122 is located at the upper end of the diversion cooling component and is staggered. When the small fan 213 is activated, it drives the airflow inside the ventilation channel 2111, allowing air to pass through the filter screen. The air passing through the mesh 212 flows around the auxiliary liquid guide pipe 221. At this time, the air exchanges heat with the coolant inside the auxiliary liquid guide pipe 221 and is drawn out by the small fan 213. It enters from the air inlet 121 and flows through the channel formed by the air inlet 121 and the air outlet 122, and flows out from the air outlet 122. First, the cool air conducted outward by the coolant inside the auxiliary liquid guide pipe 221 is used in a reasonable way, making reasonable use of resources. Then, when the drawn cool air flows through the channel, it can assist in the cooling of the injection mold and improve the cooling effect. Finally, during the injection interval, the airflow in the channel continues to flow, which can reduce the residual temperature of the mold in the un-injected state and facilitate secondary cooling.

[0049] 3. The cooling system for the injection mold proposed in this invention has a rotating cylinder 1243 sleeved on the outside of the support column 1241 at the upper end of the support ring 1242. The maximum diameter of the rotating cylinder 1243 is half the diameter of the coolant inlet 123. A pushing groove 1244 is opened on the outside of the rotating cylinder 1243, and the openings of the pushing groove 1244 face the same direction. When the coolant flowing out from the auxiliary liquid guide pipe 221 passes through the coolant mixing component 124, it pushes the pushing groove 1244 under the liquid conveying force, thereby pushing the rotating cylinder 1243 to rotate, so that the flowing coolant is stirred again, so that the outer and inner layers of coolant are mixed evenly, ensuring the cooling of the injection mold and improving the cooling effect.

[0050] 4. In the cooling system of the injection mold proposed in this invention, the coolant inlet 123 and the coolant outlet 129 are each half of the channel. A first distributor 125 is provided in the middle of the coolant inlet 123. A first barrier 126 is provided on the upper side of the coolant inlet 123 located above the first distributor 125. A second barrier 128 is provided on the upper side of the coolant outlet 129 located above the second distributor 127. The second barrier 128 is inclined towards the inner end of the coolant outlet 129. The lower side of the outlet end of the first distributor 125 and the coolant inlet 123 is connected to the upper side of the input end of the second distributor 127 and the coolant outlet 129 through a connecting pipe 1210. After passing through the coolant mixing component 1... The stirred liquid is divided into two streams by the first distributor 125. The coolant at the upper end of the first distributor 125 is buffered and blocked by the first barrier 126, which slows down the flow rate and increases the time it stays in the first barrier 126, thus improving the utilization rate of the coolant. Finally, it flows out through the channel at the lower end of the second distributor 127 through the connecting pipe 1210. The coolant at the lower end of the first distributor 125, since it is not blocked, will quickly flow through the connecting pipe 1210 to the upper end of the second distributor 127 and be blocked by the second barrier 128. It can stay at the upper end of the second distributor 127, cooling the rear half of the injection molded part. The overall temperature difference of the injection molded part is small, and the overall cooling is uniform, thereby improving the cooling effect.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cooling system for an injection mold, comprising an injection mold and a cooling system disposed on one side of the injection mold, characterized in that, The injection mold includes an upper mold and a lower mold located at the lower end of the upper mold. The inner side of the lower mold is provided with a flow-diverting cooling component, which is connected to the output end of the cooling system. The cooling system includes an air-cooled heat dissipation component and a liquid guide pipe located on one side of the air-cooled heat dissipation component. The other end of the liquid guide pipe is connected to the main solenoid valve. The input end of the main solenoid valve is equipped with a liquid inlet pipe, and the other end of the liquid inlet pipe is connected to the coolant delivery device. A connecting rod is provided in the middle of one side of the upper mold, and a push column is provided at the other end of the connecting rod. The push column has a conical structure and is inserted into the cooling start-up component provided in the middle of one side of the lower mold. The split cooling component includes a coolant inlet and a coolant mixing component disposed inside the coolant inlet. The coolant inlet is connected to the output end of the secondary guide pipe. The coolant mixing component includes a support column and a support ring disposed on the upper end of the support column. A rotating cylinder is sleeved on the outside of the support column located on the upper end of the support ring. The maximum diameter of the rotating cylinder is half the diameter of the coolant inlet. A pushing groove is opened on the outside of the rotating cylinder, and the openings of the pushing grooves face the same direction to facilitate pushing and rotating. The coolant injection port is connected to the coolant outlet on the other side of the lower mold, and the coolant injection port and the coolant outlet are an integral channel, with the coolant injection port and the coolant outlet being half of the channel respectively. A first distributor is provided in the middle of the coolant inlet, and a first barrier is provided on the upper side of the coolant inlet located at the upper end of the first distributor. The first barrier is inclined to the outer end of the coolant inlet. A second distributor is provided in the middle of the coolant outlet. A second barrier is provided on the upper side of the coolant outlet located at the upper end of the second distributor. The second barrier is inclined towards the inner end of the coolant outlet. Both the first distributor and the second distributor are components made of BT epoxy resin material, which has poor thermal conductivity and effectively blocks heat conduction. The lower side of the first distributor plate and the coolant inlet outlet is connected to the upper side of the second distributor plate and the coolant outlet inlet via a connecting pipe. The connecting pipe has a thicker structure at both ends and a thinner structure in the middle, which ensures that the coolant at the upper end of the first distributor plate can flow into the channel at the lower end of the second distributor plate and then flow out.

2. The cooling system for the injection mold as described in claim 1, characterized in that, The cooling start-up assembly includes a support member and a transmission head disposed inside the support member. The transmission head has a hemispherical structure to facilitate the pushing of the push column. A transmission block is disposed at the other end of the transmission head, and a return spring is disposed at the other end of the transmission block. Two return springs are symmetrically disposed at the center of the transmission block.

3. The cooling system for the injection mold as described in claim 2, characterized in that, A start switch is provided on the inner side of the support between the two return springs. The start switch is electrically connected to the main solenoid valve. The support also has a slot through which the transmission head is inserted, and the push column corresponds to the slot.

4. The cooling system for the injection mold as described in claim 3, characterized in that, The air-cooled heat dissipation component includes a mounting shell and a filter screen located at the lower inner side of the mounting shell. The mounting shell located at the upper part of the filter screen is provided with a secondary liquid guide tube, which is connected to the liquid guide tube. A ventilation channel is opened on the inner side of the mounting shell, and a small fan is provided at the upper end of the mounting shell located at the end of the ventilation channel.

5. The cooling system for the injection mold as described in claim 4, characterized in that, The small fan is connected to the air inlet on one side of the lower mold, and the air inlet is connected to the air outlet on the other side of the lower mold. The air inlet and the air outlet are an integral channel, and the channel formed by the air inlet and the air outlet is located at the upper end of the split cooling component and is staggered from each other.

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