An injection mold with adjustable number of heat dissipation channels

Abstract

The present invention relates to an injection mold, and in particular to an injection mold with an adjustable number of heat dissipation channels, including a bottom plate, a support column, a support block, a water tank, etc.; eight support columns are distributed and fixedly connected to the top of the bottom plate, a support block is fixedly connected to the middle part above the bottom plate, a water tank is fixedly connected to the top of the support block, and the water tank is fixedly connected to the support columns. When the injection molding temperature is within a normal range, water circulates in the first and fourth annular water channels from top to bottom inside the lower mold; when the injection molding temperature is high, water circulates in the four annular water channels from top to bottom inside the lower mold; when the injection molding temperature is low, water circulates in the four vertical water channels inside the lower mold, thereby achieving the purpose of being able to adjust the heat dissipation efficiency according to the injection molding material.

Description

Technical Field

[0001] The invention relates to an injection mold, in particular to an injection mold with adjustable number of heat dissipation channels. Background Art

[0002] Products of various shapes can be made through injection molding. Injection molding is achieved through an injection molding machine and a mold, that is, injection molding can be completed by an injection device and a clamping device that feeds the molten plastic into the mold. Injection molding can also be divided into injection molding and die casting. Injection molding products are widely used in mobile phones, laptops, various plastic housings, communication locomotives and other industries.

[0003] During the injection molding process, the temperature inside the mold will increase. Therefore, a water channel is generally provided inside the injection mold. Water circulates in the water channel, and heat is exchanged between the mold and the water to achieve the purpose of heat dissipation. The temperature of the mold can be controlled to better control the cooling and shrinkage of the plastic product in the mold, thereby controlling the product size and surface requirements. However, since there are many types of injection molding materials, different injection molding materials will have different temperatures during injection. Therefore, it is necessary to adjust the heat dissipation efficiency according to the injection molding material. The existing technology does not have the function of adjusting the heat dissipation efficiency according to the injection molding material, which is likely to affect the quality of the product. In addition, the existing technology only dissipates heat through water channels, and the heat dissipation efficiency is not high. Summary of the invention

[0004] Based on this, it is necessary to propose an injection mold with an adjustable number of heat dissipation channels that can automatically adjust the heat dissipation efficiency according to the injection molding material and can efficiently dissipate heat to address the above problems, so as to solve the problem that the prior art in the above background technology does not have the function of adjusting the heat dissipation efficiency according to the injection molding material and the heat dissipation efficiency is not high.

[0005] The technical solution is: an injection mold with an adjustable number of heat dissipation channels, including a bottom plate, a support column, a support block, a water tank, a first fixed rod, a sliding switch, a first return spring, a lower mold, an upper mold, a first heat dissipation mechanism and an opening and closing mechanism, eight support columns are distributed and fixedly connected to the top of the bottom plate, a support block is fixedly connected to the middle part above the bottom plate, a water tank is fixedly connected to the top of the support block, the water tank is fixed to the support column, a first fixed rod is fixedly connected to the top of the bottom plate, a sliding switch is slidably connected to the upper part of the first fixed rod, the sliding switch is plugged in the bottom of the water tank, a first return spring is connected between the sliding switch and the bottom plate, a lower mold is fixedly connected to the upper inner side of the water tank, four annular water channels are arranged inside the lower mold, and the water channels are evenly distributed around the outside of the model, four vertical water channels are arranged inside the lower mold, an upper mold is covered above the lower mold, an annular water channel is arranged inside the upper mold, and the annular water channel is communicated with the four vertical water channels inside the lower mold, a first heat dissipation mechanism is arranged on the lower mold, and an opening and closing mechanism is arranged on the upper mold.

[0006] As an improvement to the above solution, an annular water channel inside the lower mold is used to circulate water for heat dissipation during injection molding.

[0007] As an improvement of the above scheme, the first heat dissipation mechanism includes a support frame, an electric push rod, a connecting strip, a first connecting pipe, a sliding U-shaped frame, a first sliding block, a first semicircular plate, a water inlet pipe, a second connecting pipe, a first water outlet pipe, a telescopic pipe, a special-shaped push frame, a sliding frame, a second sliding block, a second semicircular plate, a second return spring, a second water outlet pipe and a water pump. The support frame is fixedly connected to the left side of the outer side of the lower mold, and an electric push rod is fixedly installed on the support frame. The end of the telescopic shaft of the electric push rod is fixedly connected to the connecting strip. The first connecting pipe is connected to the left side of the lower mold. A connecting pipe adopts two cross channel structures, the right part of the first connecting pipe is connected to the four annular water channels inside the lower mold, a sliding U-shaped frame is fixedly connected to the left part of the connecting strip, the sliding U-shaped frame passes through the first connecting pipe, a pair of first sliding blocks are fixedly connected to the right part of the sliding U-shaped frame, the first sliding block is slidably connected to the first connecting pipe, a first semicircular plate is fixedly connected to the lower right part of the first sliding block at the top, the first semicircular plate is slidably connected to the first connecting pipe, the upper right part of the lower mold is connected to a water inlet pipe, the water inlet pipe adopts a T-shaped channel structure, and the water inlet pipe is connected to the lower mold. The first annular waterway from top to bottom inside the mold is connected, the middle part of the right side of the lower mold is connected to a second connecting pipe, the second connecting pipe is connected to the second and third annular waterways from top to bottom inside the lower mold, the lower right side of the lower mold is connected to a first water outlet pipe, the first water outlet pipe is connected to the fourth annular waterway from top to bottom inside the lower mold, the right part of the upper mold is connected to a telescopic pipe, the telescopic pipe is connected to the water inlet pipe, the telescopic pipe is telescopic, and the telescopic pipe is connected to the annular waterway inside the upper mold, a pair of special-shaped push racks are fixedly connected to the right part of the connecting strip, and the water inlet pipe is connected to the first outlet pipe. A sliding frame is slidably connected, the sliding frame passes through the water inlet pipe, the sliding frame contacts the special-shaped push frame, a second sliding block is fixedly connected to the upper part of the sliding frame, the second sliding block is slidably connected to the telescopic tube, a second semicircular plate is fixedly connected to the upper part of the second sliding block, the second semicircular plate is slidably connected to the telescopic tube, a second return spring is connected between the second sliding block and the water inlet pipe, four second water outlet pipes are distributedly connected to the bottom of the outer side of the lower mold, the second water outlet pipes are connected to the four vertical water channels inside the lower mold, a water pump is fixedly connected to the bottom of the water tank, and the water pump is connected to the water inlet pipe.

[0008] As an improvement of the above scheme, the opening and closing mechanism includes a first rotating ring, a sector gear, a second rotating ring, a second fixed rod, a third sliding block, a third return spring, a sector plate, a rack, a flat gear and a wedge gear. Four first rotating rings are rotatably connected in a rectangular distribution manner in the lower part of the upper mold, a sector gear is fixed to the outside of the first rotating ring, a second rotating ring is fixed to the bottom of the first rotating ring, four arc-shaped sliding grooves are distributed in a ring-shaped manner on the second rotating ring, sixteen second fixed rods are distributed and fixed inside the upper mold, every four second fixed rods are distributed in a ring-shaped manner, and the end of the second fixed rod away from the upper mold is slidably connected to the third sliding block, the third sliding block is limitedly matched with the second rotating ring, and a third return spring is connected between the third sliding block and the second fixed rod, a sector plate is fixed to the lower part of the third sliding block, the sector plate is in contact with the top of the lower mold, and four racks are distributed and fixed on the top of the lower mold, and four flat gears are distributed and rotatably connected inside the upper mold, adjacent flat gears are meshed with the racks, wedge gears are fixed to the flat gears, and adjacent wedge gears are meshed with the sector gears.

[0009] As an improvement of the above scheme, a sealing mechanism is also included. The sealing mechanism is arranged on the lower mold, and the sealing mechanism includes a first sealing ring and a second sealing ring. The first sealing ring is fixedly connected to the top of the lower mold in a four-corner distribution manner, and the second sealing ring is fixedly connected to the bottom of the upper mold in a four-corner distribution manner, and the second sealing ring is in contact with the first sealing ring.

[0010] As an improvement of the above solution, the diameter of the first sealing ring is greater than the diameter of the second sealing ring, and the first sealing ring and the second sealing ring are used to seal during water injection to prevent water from leaking to the lower mold surface during water injection.

[0011] As an improvement of the above scheme, it also includes a control mechanism, which is arranged on the lower mold, and includes a temperature sensor, a bracket, a control module and a display screen. The temperature sensor is fixedly connected to the left side of the lower mold, and the bracket is fixedly connected to the front side of the lower mold. The control module is fixedly connected to the bracket, and the display screen is fixedly connected to the bracket.

[0012] As an improvement of the above scheme, it also includes a second heat dissipation mechanism, which is arranged on the lower mold. The second heat dissipation mechanism includes heat dissipation rods and heat dissipation rings. Four pairs of heat dissipation rods are fixedly connected in a ring-shaped distributed manner inside the lower mold. The heat dissipation rods pass through the lower mold and the upper mold. A heat dissipation ring is fixedly connected between the bottom ends of the four pairs of heat dissipation rods. The heat dissipation ring is located inside the water tank.

[0013] As an improvement of the above solution, the heat sink rod and the heat sink ring are made of copper, which has good thermal conductivity. The heat sink rod and the heat sink ring are used for heat conduction to enhance the heat dissipation effect.

[0014] As an improvement of the above scheme, it also includes a water drainage mechanism, which is arranged on the sliding frame. The water drainage mechanism includes an L-shaped bar, a third fixed rod and a hollow rod. The L-shaped bar is fixedly connected to the sliding frame, the third fixed rod is fixedly connected below the L-shaped bar, the bottom end of the third fixed rod is fixedly connected to the hollow rod, and the hollow rod is located above the first fixed rod.

[0015] The beneficial effects are:

[0016] 1. When the injection molding temperature is within the normal range, water circulates in the first and fourth annular water channels from top to bottom inside the lower mold; when the injection molding temperature is high, water circulates in the four annular water channels from top to bottom inside the lower mold; when the injection molding temperature is low, water circulates in the four vertical water channels inside the lower mold, thereby achieving the purpose of adjusting the heat dissipation efficiency according to the injection molding material.

[0017] 2. The temperature of the mold is sensed by the temperature sensor. Different injection molding materials have different temperatures. The temperature sensor will control the electric push rod to extend or contract, so that the number of heat dissipation channels inside the equipment changes, so that the number of heat dissipation channels can be automatically adjusted according to different injection molding materials, thus achieving the purpose of automatically adjusting the number of heat dissipation channels according to different injection molding materials.

[0018] 3. Through the cooperation of the fan-shaped plate and the device thereon, when the upper mold and the device thereon rise, the fan-shaped plate will automatically close to prevent water leakage inside the upper mold, thereby effectively ensuring product quality.

[0019] 4. Through the cooperation of the sliding switch and the device thereon, when it is necessary to clean the pipes and heat dissipation channels inside the equipment, the sliding switch will be opened to facilitate the discharge of water inside the water tank and the discharge of sewage during the cleaning process.

[0020] 5. Through the heat dissipation rod and the heat dissipation ring, the heat of the lower mold and the upper mold can be effectively transferred to below the water level in the water tank, further improving the heat dissipation efficiency, which is beneficial to improving the quality of the injection molded products and achieving the purpose of efficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0023] Figure 3 It is a schematic diagram of a first partially cutaway three-dimensional structure of the present invention.

[0024] Figure 4 It is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 5 It is a schematic diagram of a second partially cutaway three-dimensional structure of the present invention.

[0026] Figure 6 It is a schematic diagram of the sectional split three-dimensional structure of the lower mold and the upper mold of the present invention.

[0027] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the lower mold and the upper mold of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the upper mold of the present invention.

[0029] Fig. 9 It is a schematic diagram of a first sectional three-dimensional structure of the lower mold of the present invention.

[0030] Fig.10 It is a schematic diagram of a second sectional three-dimensional structure of the lower mold of the present invention.

[0031] Fig.11 It is a schematic diagram of a first partially cutaway three-dimensional structure of the first heat dissipation mechanism of the present invention.

[0032] Fig.12 It is a schematic diagram of a second partially cutaway three-dimensional structure of the first heat dissipation mechanism of the present invention.

[0033] Fig.13 It is a schematic diagram of a third partial cross-sectional three-dimensional structure of the first heat dissipation mechanism of the present invention.

[0034] Fig.14 It is a schematic diagram of a third partially cutaway three-dimensional structure of the present invention.

[0035] Fig.15 It is a partial three-dimensional structural schematic diagram of the opening and closing mechanism of the present invention.

[0036] Fig.16 It is a schematic diagram of the split three-dimensional structure of the opening and closing mechanism of the present invention.

[0037] Fig.17 It is a schematic diagram of a fourth partially cutaway three-dimensional structure of the present invention.

[0038] Fig.18 It is a schematic diagram of the disassembled three-dimensional structure of the sealing mechanism of the present invention.

[0039] Fig.19 It is a schematic diagram of the cross-sectional three-dimensional structure of the control mechanism of the present invention.

[0040] Fig. 20 It is a schematic cross-sectional three-dimensional structural diagram of the second heat dissipation mechanism of the present invention.

[0041] Fig.21 It is a partial cross-sectional three-dimensional structural schematic diagram of the water discharge mechanism of the present invention.

[0042] Fig. 22 It is a schematic diagram of the cross-sectional three-dimensional structure of the water discharge mechanism of the present invention.

[0043] Names of the numbers in the figure: 1, bottom plate, 2, support column, 3, support block, 4, water tank, 5, first fixing rod, 6, sliding switch, 7, first return spring, 8, lower mold, 9, upper mold, 10, first heat dissipation mechanism, 101, support frame, 102, electric push rod, 103, connecting strip, 104, first connecting pipe, 105, sliding U-shaped frame, 106, first sliding block, 107, first semicircular plate, 108, water inlet pipe, 109, second connecting pipe, 1011, first water outlet pipe, 1012, telescopic pipe, 1013, special-shaped push frame, 1014, sliding frame, 1015, second sliding block, 1016, second semicircular plate, 1017, second return spring, 1018, second water outlet Tube, 1019, water pump, 11, opening and closing mechanism, 111, first rotating ring, 112, fan-shaped gear, 113, second rotating ring, 114, second fixed rod, 115, third sliding block, 116, third return spring, 117, fan-shaped plate, 118, rack, 119, flat gear, 1111, wedge gear, 12, sealing mechanism, 121, first sealing ring, 122, second sealing ring, 13, control mechanism, 131, temperature sensor, 132, bracket, 133, control module, 134, display screen, 14, second heat dissipation mechanism, 141, heat dissipation rod, 142, heat dissipation ring, 15, water discharge mechanism, 151, L-shaped bar, 152, third fixed rod, 153, hollow rod. DETAILED DESCRIPTION

[0044] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] Example 1

[0046] An injection mold with adjustable number of heat dissipation channels, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, it includes a bottom plate 1, a support column 2, a support block 3, a water tank 4, a first fixed rod 5, a sliding switch 6, a first reset spring 7, a lower mold 8, an upper mold 9, a first heat dissipation mechanism 10 and an opening and closing mechanism 11. Eight support columns 2 are distributed and fixedly connected to the top of the bottom plate 1. A support block 3 is fixedly connected to the middle part of the upper part of the bottom plate 1. The top of the support block 3 is fixedly connected to the water tank 4. The support columns 2 and the support block 3 are used to support the water tank 4. The water tank 4 is fixedly connected to the support column 2. The top of the bottom plate 1 is fixedly connected to the first fixed rod 5. The upper part of the first fixed rod 5 is slidably connected to the sliding switch 6. The sliding switch 6 is used to block the bottom of the water tank 4. The sliding switch 6 is plugged into the water tank 4. At the bottom, a first return spring 7 is connected between the sliding switch 6 and the bottom plate 1, a lower mold 8 is fixedly connected to the upper inner side of the water tank 4, four annular water channels are arranged inside the lower mold 8, and the water channels are evenly distributed around the outside of the model, four vertical water channels are arranged inside the lower mold 8, an upper mold 9 is covered above the lower mold 8, an annular water channel is arranged inside the upper mold 9, and the annular water channel is communicated with the four vertical water channels inside the lower mold 8, a first heat dissipation mechanism 10 is arranged on the lower mold 8, and the first heat dissipation mechanism 10 is used to dissipate heat according to different injection molding materials, and an opening and closing mechanism 11 is arranged on the upper mold 9, and the opening and closing mechanism 11 is used to prevent water leakage.

[0047] The first heat dissipation mechanism 10 includes a support frame 101, an electric push rod 102, a connecting strip 103, a first connecting pipe 104, a sliding U-shaped frame 105, a first sliding block 106, a first semicircular plate 107, a water inlet pipe 108, a second connecting pipe 109, a first water outlet pipe 1011, a telescopic pipe 1012, a special-shaped push frame 1013, a sliding frame 1014, a second sliding block 1015, a second semicircular plate 1016, a second return spring 1017, a second water outlet pipe 1018 and a water pump 1019. The support frame 101 is fixedly connected to the left side of the outer side of the lower mold 8, and the electric push rod 102 is fixedly installed on the support frame 101. The end of the telescopic shaft of the electric push rod 102 is fixedly connected to the connecting strip 103. The electric push rod 102 is used to drive the connecting strip 103. and the upper device moves, the left side of the lower mold 8 is connected to the first connecting pipe 104, the first connecting pipe 104 adopts two cross channel structures, the right part of the first connecting pipe 104 is connected to the four annular waterways inside the lower mold 8, the left part of the connecting strip 103 is fixedly connected to a sliding U-shaped frame 105, the sliding U-shaped frame 105 passes through the first connecting pipe 104, the right part of the sliding U-shaped frame 105 is fixedly connected to a pair of first sliding blocks 106, the first sliding blocks 106 are used to block the first connecting pipe 104, the first sliding blocks 106 are slidably connected to the first connecting pipe 104, the lower right part of the first sliding block 106 at the top is fixedly connected to a first semicircular plate 107, the first semicircular plate 107 adopts an arc surface structure, and the first semicircular plate 107 is slidably connected to the first connecting pipe 104 Then, the upper right side of the lower mold 8 is connected with a water inlet pipe 108, and the water in the water tank 4 flows into the annular waterway inside the lower mold 8 through the water inlet pipe 108. The water inlet pipe 108 adopts a T-channel structure, and the water inlet pipe 108 is connected to the first annular waterway from top to bottom inside the lower mold 8. The middle right side of the lower mold 8 is connected with a second connecting pipe 109, and the second connecting pipe 109 is used to connect the second and third annular waterways from top to bottom inside the lower mold 8. The second connecting pipe 109 is connected to the second and third annular waterways from top to bottom inside the lower mold 8. The lower right side of the lower mold 8 is connected with a first water outlet pipe 1011, and the first water outlet pipe 1011 is connected to the fourth annular waterway from top to bottom inside the lower mold 8. The right side of the upper mold 9 is connected with a telescopic pipe 1012, water can flow into the annular waterway inside the upper mold 9 through the telescopic tube 1012, the telescopic tube 1012 is connected to the water inlet pipe 108, the telescopic tube 1012 is retractable, the telescopic tube 1012 is connected to the annular waterway inside the upper mold 9, a pair of special-shaped push frames 1013 are fixedly connected to the right part of the connecting strip 103, the special-shaped push frames 1013 are provided with asymmetric bevels, the water inlet pipe 108 is slidably connected with a sliding frame 1014, the special-shaped push frame 1013 is used to squeeze the sliding frame 1014 to move downward, the sliding frame 1014 passes through the water inlet pipe 108, the sliding frame 1014 contacts the special-shaped push frame 1013, the upper part of the sliding frame 1014 is fixedly connected to a second sliding block 1015, the second sliding block 1015 is used to block the telescopic tube 1012,The second sliding block 1015 is slidably connected to the telescopic tube 1012. A second semicircular plate 1016 is fixedly connected to the upper part of the second sliding block 1015. The second semicircular plate 1016 is provided with an arc surface. The second semicircular plate 1016 is used to block the water inlet pipe 108 to control the flow direction of water. The second semicircular plate 1016 is slidably connected to the telescopic tube 1012. A second return spring 1017 is connected between the second sliding block 1015 and the water inlet pipe 108. Four second water outlet pipes 1018 are distributed and connected at the bottom of the outer side of the lower mold 8. The water inside the lower mold 8 can be discharged through the second water outlet pipes 1018. The second water outlet pipes 1018 are connected to the four vertical waterways inside the lower mold 8. The water pump 1019 is fixedly connected to the bottom of the water tank 4, and the water pump 1019 is connected to the water inlet pipe 108.

[0048] The opening and closing mechanism 11 includes a first rotating ring 111, a sector gear 112, a second rotating ring 113, a second fixed rod 114, a third sliding block 115, a third reset spring 116, a sector plate 117, a rack 118, a flat gear 119 and a wedge gear 1111. Four first rotating rings 111 are rotatably connected in a rectangular distribution manner in the lower part of the upper mold 9. The sector gear 112 is fixed to the outside of the first rotating ring 111. The second rotating ring 113 is fixed below the first rotating ring 111. Four arc-shaped sliding grooves are distributed in an annular manner on the second rotating ring 113. Sixteen second fixed rods 114 are distributed in the upper mold 9 by welding. Every four second fixed rods 114 are distributed in an annular manner. The end of the second fixed rod 114 away from the upper mold 9 is slidably connected to the third sliding block 11 5. The second rotating ring 113 guides the third sliding block 115. The third sliding block 115 is limitedly matched with the second rotating ring 113. A third return spring 116 is connected between the third sliding block 115 and the second fixed rod 114. A fan-shaped plate 117 is fixedly connected to the lower part of the third sliding block 115. The fan-shaped plate 117 is used to block the water outlet of the annular waterway inside the upper mold 9. The fan-shaped plate 117 contacts the top of the lower mold 8. Four racks 118 are distributed and fixedly connected to the top of the lower mold 8. Four flat gears 119 are distributed and rotatably connected inside the upper mold 9. Adjacent flat gears 119 are meshed with racks 118. Wedge gears 1111 are connected to the flat gears 119 by welding. Adjacent wedge gears 1111 are meshed with fan gears 112. The wedge gears 1111 are located below the fan gears 112.

[0049] The mold will generate a lot of heat when working, so it is necessary to dissipate heat from the mold to make the plastic model product cool and shrink better. The water tank 4 is filled with water for heat dissipation. Depending on the material of the product being injected, the material with a higher injection temperature requires higher heat dissipation, and the material with a lower injection temperature requires lower heat dissipation. When the injection temperature is within the normal range, the staff first controls the water pump 1019 to start, and the water pump 1019 will draw the water inside the water tank 4 upward through the water inlet pipe 108. At this time, the second sliding block 1015 will pull the telescopic pipe 1 012 is blocked, so that water will not flow to the telescopic tube 1012, and water will enter the first annular waterway from top to bottom inside the lower mold 8 through the water inlet pipe 108, and then enter the first connecting pipe 104. Since the connection between the first connecting pipe 104 and the second and third annular waterways from top to bottom inside the lower mold 8 is blocked by the first sliding block 106, water can flow through the first connecting pipe 104 to the fourth annular waterway from top to bottom inside the lower mold 8, and then the water will be discharged through the first water outlet pipe 1011 and flow back to the water tank 4. In the above process, water will circulate in the first and fourth annular waterways from top to bottom inside the lower mold 8, which can effectively dissipate heat for the mold, and is convenient for controlling the cooling and shrinkage of the plastic model product injected by the mold.

[0050] Depending on the material of the product being injected, when the injection molding temperature is high, a higher heat dissipation efficiency is required. The staff manually controls the electric push rod 102 to extend to a suitable length. The electric push rod 102 will drive the connecting strip 103 and the device thereon to move to the left to a suitable position, and the sliding U-shaped frame 105 and the device thereon will also move together, so that the first semicircular plate 107 blocks the lower through hole of the cross channel above the first connecting pipe 104, and the two first sliding blocks 106 no longer block the first connecting pipe 104. When water flows from the first annular waterway from top to bottom inside the lower mold 8 to the first connecting pipe 104, the water flow can only flow to The water flows through the second annular waterway from top to bottom inside the lower mold 8, and then flows through the second connecting pipe 109 to the third annular waterway from top to bottom inside the lower mold 8, and then flows to the first connecting pipe 104. Since the lower through hole of the cross channel of the first connecting pipe 104 is blocked by the first semicircular plate 107 at this time, the water can only flow from the first connecting pipe 104 to the fourth annular waterway from top to bottom inside the lower mold 8, and then discharged through the first outlet pipe 1011. In the above process, the water circulates in the four annular waterways inside the lower mold 8, making the heat dissipation efficiency higher, which is suitable for injection molding materials with higher injection molding temperatures. When it is necessary to dissipate heat for injection molding materials with injection molding temperatures within the normal range again, the staff manually controls the electric push rod 102 to reset, and the connecting strip 103 and the devices thereon will then be reversed and reset one after another.

[0051] When the injection molding temperature is low and a lower heat dissipation efficiency is required, the staff manually controls the electric push rod 102 to contract, and the electric push rod 102 will drive the connecting strip 103 and the upper device to move to the right, and the special-shaped push frame 1013 will also move to the right together, and the special-shaped push frame 1013 will push the sliding frame 1014 and the upper device to move downward, and the second return spring 1017 will be compressed accordingly, so that the second semicircular plate 1016 will block the left side of the water inlet pipe 108, so that the water flow cannot enter the first annular waterway from top to bottom inside the lower mold 8, and the second sliding block 1015 will no longer block The telescopic tube 1012 is held, so that the water flow can flow from the water inlet pipe 108 to the telescopic tube 1012, and then flow into the annular water channel inside the upper mold 9, and then the water flow will flow from the annular water channel inside the upper mold 9 to the four vertical water channels inside the lower mold 8, and then the water flow is discharged through the second water outlet pipe 1018 and flows back to the water tank 4. Through the above operation, the water flow flows in the four vertical water channels inside the lower mold 8 and dissipates the heat for the injection molding material with lower temperature. Since the heat dissipation efficiency of the four vertical water flows is lower than that of the four annular water flows, it is suitable for injection molding materials with lower injection temperatures.

[0052] The upper mold 9 is connected to an external telescopic device, which drives the upper mold 9 and its upper device to rise or fall and perform injection molding. When the upper mold 9 and its upper device move upward, due to the action of the rack 118, the flat gear 119 and its upper device will rotate, the wedge gear 1111 will drive the fan gear 112 and its upper device to rotate, and the second rotating ring 113 will also rotate. The second rotating ring 113 will drive the adjacent third sliding block 115 and its upper device to move inward, and the third reset spring 116 will be stretched accordingly, and the adjacent fan-shaped plate 117 will also move inward together, so that the corresponding The adjacent fan-shaped plates 117 form a circle and block the water outlet of the annular water channel inside the upper mold 9 to prevent water leakage inside the upper mold 9 when the upper mold 9 rises. When the upper mold 9 and the device thereon are reset downward, due to the action of the rack 118, the flat gear 119 and the device thereon will rotate in the opposite direction, and the wedge gear 1111 will drive the fan-shaped gear 112 and the device thereon to rotate in the opposite direction, and the third reset spring 116 will then reset and drive the third sliding block 115 and the device thereon to reset, so that the fan-shaped plate 117 is reset and no longer blocks the water outlet of the annular water channel inside the upper mold 9, thereby facilitating continued heat dissipation.

[0053] Example 2

[0054] On the basis of Example 1, Fig.17 and Fig.18As shown, it also includes a sealing mechanism 12, which is arranged on the lower mold 8. The sealing mechanism 12 is used to prevent water from leaking to the surface of the lower mold 8 when injecting water. The sealing mechanism 12 includes a first sealing ring 121 and a second sealing ring 122. The first sealing ring 121 is fixedly connected to the top of the lower mold 8 in a four-corner distribution manner, and the second sealing ring 122 is fixedly connected to the bottom of the upper mold 9 in a four-corner distribution manner. The first sealing ring 121 and the second sealing ring 122 are both annular structures. The second sealing ring 122 is in contact with the first sealing ring 121, and the diameter of the first sealing ring 121 is greater than the diameter of the second sealing ring 122.

[0055] When the upper mold 9 and the upper device thereof are reset downward and cover the lower mold 8 , the first sealing ring 121 will fit tightly with the second sealing ring 122 to prevent water from leaking onto the surface of the lower mold 8 during water injection.

[0056] Example 3

[0057] On the basis of Example 2, Fig.19 As shown, it also includes a control mechanism 13, which is arranged on the lower mold 8. The control mechanism 13 is used to automatically control the heat dissipation efficiency according to the temperature. The control mechanism 13 includes a temperature sensor 131, a bracket 132, a control module 133 and a display screen 134. The temperature sensor 131 is fixedly connected to the left side of the lower mold 8. The temperature sensor 131 is used to sense the temperature of the lower mold 8 during injection molding. The bracket 132 is fixedly connected to the front side of the outer side of the lower mold 8. The control module 133 is fixedly connected to the bracket 132. The control module 133 controls the operation of the electric push rod 102. The bracket 132 is fixedly connected to a display screen 134, and the display screen 134 is used to display temperature information.

[0058] The temperature sensor 131 is used to sense the temperature of the lower mold 8 during injection molding in real time. The temperature sensed by the temperature sensor 131 will be displayed on the display screen 134, so that the staff can understand the injection molding temperature at any time. When the temperature sensor 131 senses that the temperature of the lower mold 8 is high, the temperature sensor 131 will control the electric push rod 102 to extend to an appropriate length through the control module 133. When the temperature sensor 131 senses that the temperature of the lower mold 8 is within a normal range, the temperature sensor 131 will control the electric push rod 102 to reset through the control module 133. When the temperature sensor 131 senses that the temperature of the lower mold 8 is low, the temperature sensor 131 will control the electric push rod 102 to shrink to an appropriate length through the control module 133, so as to automatically control the heat dissipation efficiency according to the temperature.

[0059] Example 4

[0060] On the basis of Example 3, Fig. 20As shown, a second heat dissipation mechanism 14 is also included. The second heat dissipation mechanism 14 is arranged on the lower mold 8. The second heat dissipation mechanism 14 is used to achieve a better heat dissipation effect. The second heat dissipation mechanism 14 includes a heat dissipation rod 141 and a heat dissipation ring 142. Four pairs of heat dissipation rods 141 are fixedly connected in a ring-shaped distributed manner inside the lower mold 8. The heat dissipation rods 141 pass through the lower mold 8 and the upper mold 9. A heat dissipation ring 142 is fixedly connected to the bottom ends of the four pairs of heat dissipation rods 141. The heat dissipation rods 141 and the heat dissipation ring 142 are made of copper. The heat dissipation rods 141 and the heat dissipation ring 142 are used for heat conduction. The heat dissipation ring 142 is located inside the water tank 4.

[0061] The heat dissipation rod 141 and the heat dissipation ring 142 are made of copper, which has a better heat transfer effect and can better transfer the heat of the lower mold 8 and the upper mold 9 to below the water level in the water tank 4, thereby achieving a better heat dissipation effect.

[0062] Example 5

[0063] On the basis of Example 4, Fig.21 and Fig. 22 As shown, it also includes a drain mechanism 15, which is arranged on the sliding frame 1014. The drain mechanism 15 is used to discharge sewage when cleaning the pipe. The drain mechanism 15 includes an L-shaped bar 151, a third fixed rod 152 and a hollow rod 153. The L-shaped bar 151 is fixedly connected to the sliding frame 1014, and the third fixed rod 152 is fixedly connected below the L-shaped bar 151. The bottom end of the third fixed rod 152 is fixedly connected to the hollow rod 153, and the hollow rod 153 is used to squeeze the sliding switch 6. The hollow rod 153 is located above the first fixed rod 5.

[0064] When it is necessary to clean the water channels in the lower mold 8 and the upper mold 9 and the various pipes in the equipment, the staff manually controls the electric push rod 102 to extend a long distance, and the special-shaped push frame 1013 will squeeze the sliding frame 1014 and the device thereon to move downward a long distance. At the same time, the sliding frame 1014 will drive the L-shaped bar 151 and the device thereon to move downward, and the hollow rod 153 will squeeze the sliding switch 6. The first return spring 7 will be compressed accordingly, so that the sliding switch 6 no longer blocks the bottom of the water tank 4, and the water inside the water tank 4 can be discharged. At the same time, the sewage discharged during the cleaning of the pipe can also be discharged through the through hole at the bottom of the water tank 4.

[0065] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

Claims

1. An injection mold with adjustable number of heat dissipation channels, comprising a base plate (1), characterized in that: The invention also comprises a support column (2), a support block (3), a water tank (4), a first fixed rod (5), a sliding switch (6), a first return spring (7), a lower mold (8), an upper mold (9), a first heat dissipation mechanism (10) and an opening and closing mechanism (11); eight support columns (2) are distributed and fixedly connected to the top of the bottom plate (1); a support block (3) is fixedly connected to the middle of the top of the bottom plate (1); a water tank (4) is fixedly connected to the top of the support block (3); the water tank (4) is fixedly connected to the support column (2); a first fixed rod (5) is fixedly connected to the top of the bottom plate (1); a sliding switch (6) is slidably connected to the upper part of the first fixed rod (5); and the sliding switch (6) ) is plugged at the bottom of the water tank (4), a first return spring (7) is connected between the sliding switch (6) and the bottom plate (1), a lower mold (8) is fixedly connected to the upper inner side of the water tank (4), four annular water channels are arranged inside the lower mold (8), and the water channels are evenly distributed around the outside of the model, four vertical water channels are arranged inside the lower mold (8), an upper mold (9) is covered above the lower mold (8), an annular water channel is arranged inside the upper mold (9), and the annular water channel is communicated with the four vertical water channels inside the lower mold (8), a first heat dissipation mechanism (10) is arranged on the lower mold (8), and an opening and closing mechanism (11) is arranged on the upper mold (9); The first heat dissipation mechanism (10) comprises a support frame (101), an electric push rod (102), a connecting strip (103), a first connecting pipe (104), a sliding U-shaped frame (105), a first sliding block (106), a first semicircular plate (107), a water inlet pipe (108), a second connecting pipe (109), a first water outlet pipe (1011), a telescopic pipe (1012), a special-shaped push frame (1013), a sliding frame (1014), a second sliding block (1015), a second semicircular plate (1016), a second return spring (1017), a second water outlet pipe (1018) and a water pump (1019). The support frame (101) is fixedly connected to the left side of the outer portion of the lower mold (8). The electric push rod (101) is fixedly mounted on the support frame (101). 102), a connecting strip (103) is fixedly connected to the end of the telescopic shaft of the electric push rod (102), a first connecting pipe (104) is connected to the left side of the lower mold (8), the first connecting pipe (104) adopts a two-cross channel structure, the right part of the first connecting pipe (104) is connected to the four annular water channels inside the lower mold (8), a sliding U-shaped frame (105) is fixedly connected to the left part of the connecting strip (103), the sliding U-shaped frame (105) passes through the first connecting pipe (104), a pair of first sliding blocks (106) are fixedly connected to the right part of the sliding U-shaped frame (105), the first sliding blocks (106) are slidably connected to the first connecting pipe (104), a first semicircular plate (107) is fixedly connected to the lower right part of the first sliding block (106) at the top, the first semicircular plate (107) 07) is slidably connected to the first connecting pipe (104), the upper right side of the lower mold (8) is connected to a water inlet pipe (108), the water inlet pipe (108) adopts a T-shaped channel structure, the water inlet pipe (108) is connected to the first annular water path from top to bottom inside the lower mold (8), the middle right side of the lower mold (8) is connected to a second connecting pipe (109), the second connecting pipe (109) is connected to the second and third annular water paths from top to bottom inside the lower mold (8), the lower right side of the lower mold (8) is connected to a first water outlet pipe (1011), the first water outlet pipe (1011) is connected to the fourth annular water path from top to bottom inside the lower mold (8), the right side of the upper mold (9) is connected to a telescopic pipe (1012), the telescopic pipe (1012) is connected to the water inlet pipe ( 108) is connected, the telescopic tube (1012) is telescopic, the telescopic tube (1012) is communicated with the annular water path inside the upper mold (9), a pair of special-shaped push frames (1013) are fixedly connected to the right part of the connecting strip (103), a sliding frame (1014) is slidably connected to the water inlet pipe (108), the sliding frame (1014) passes through the water inlet pipe (108), the sliding frame (1014) contacts the special-shaped push frame (1013), a second sliding block (1015) is fixedly connected to the upper part of the sliding frame (1014), the second sliding block (1015) is slidably connected to the telescopic tube (1012), a second semicircular plate (1016) is fixedly connected to the upper part of the second sliding block (1015), and the second semicircular plate (1016) is slidably connected to the telescopic tube (1012),A second return spring (1017) is connected between the second sliding block (1015) and the water inlet pipe (108); four second water outlet pipes (1018) are distributed and connected to the bottom of the outer side of the lower mold (8); the second water outlet pipes (1018) are connected to four vertical water channels inside the lower mold (8); a water pump (1019) is fixed to the bottom of the water tank (4); and the water pump (1019) is connected to the water inlet pipe (108); The invention also comprises a control mechanism (13), the control mechanism (13) being arranged on the lower mould (8), the control mechanism (13) comprising a temperature sensor (131), a bracket (132), a control module (133) and a display screen (134), the temperature sensor (131) being fixedly connected to the left side of the interior of the lower mould (8), the bracket (132) being fixedly connected to the front side of the exterior of the lower mould (8), the control module (133) being fixedly connected to the bracket (132), and the display screen (134) being fixedly connected to the bracket (132).

2. An injection mold with adjustable number of heat dissipation channels according to claim 1, characterized in that: The annular water channel inside the lower mold (8) is used to circulate water for heat dissipation during injection molding.

3. The injection mold with adjustable number of heat dissipation channels according to claim 1, characterized in that: The opening and closing mechanism (11) comprises a first rotating ring (111), a sector gear (112), a second rotating ring (113), a second fixed rod (114), a third sliding block (115), a third return spring (116), a sector plate (117), a rack (118), a flat gear (119) and a wedge gear (1111); four first rotating rings (111) are rotatably connected in a rectangular distribution manner in the lower part of the upper mold (9); the sector gear (112) is fixedly connected to the outside of the first rotating ring (111); the second rotating ring (113) is fixedly connected below the first rotating ring (111); four arc-shaped sliding grooves are distributed in an annular manner on the second rotating ring (113); sixteen second fixed rods (114) are distributed and fixedly connected to the inside of the upper mold (9); four second fixed rods (114) are arranged in an annular manner. The third sliding block (115) is slidably connected to one end of the second fixed rod (114) away from the upper mold (9), the third sliding block (115) is limitedly matched with the second rotating ring (113), a third return spring (116) is connected between the third sliding block (115) and the second fixed rod (114), a fan-shaped plate (117) is fixedly connected to the lower part of the third sliding block (115), the fan-shaped plate (117) is in contact with the top of the lower mold (8), four racks (118) are distributed and fixedly connected to the top of the lower mold (8), four flat gears (119) are distributed and rotatably connected inside the upper mold (9), adjacent flat gears (119) are meshed with the racks (118), wedge gears (1111) are fixedly connected to the flat gears (119), and adjacent wedge gears (1111) are meshed with the fan-shaped gears (112).

4. The injection mold with adjustable number of heat dissipation channels according to claim 3, characterized in that: The invention also comprises a sealing mechanism (12), the sealing mechanism (12) being arranged on the lower mould (8), the sealing mechanism (12) comprising a first sealing ring (121) and a second sealing ring (122), the first sealing ring (121) being fixedly connected to the top of the lower mould (8) in a manner of four-corner distribution, the second sealing ring (122) being fixedly connected to the bottom of the upper mould (9) in a manner of four-corner distribution, and the second sealing ring (122) being in contact with the first sealing ring (121).

5. The injection mold with adjustable number of heat dissipation channels according to claim 4, characterized in that: The diameter of the first sealing ring (121) is greater than the diameter of the second sealing ring (122); the first sealing ring (121) and the second sealing ring (122) are used to seal during water injection, thereby preventing water from leaking onto the surface of the lower mould (8) during water injection.

6. The injection mold with adjustable number of heat dissipation channels according to claim 1, characterized in that: It also includes a second heat dissipation mechanism (14), which is arranged on the lower mold (8), and includes heat dissipation rods (141) and heat dissipation rings (142). Four pairs of heat dissipation rods (141) are fixedly connected in an annular distribution inside the lower mold (8), and the heat dissipation rods (141) pass through the lower mold (8) and the upper mold (9). The heat dissipation rings (142) are fixedly connected between the bottom ends of the four pairs of heat dissipation rods (141), and the heat dissipation rings (142) are located inside the water tank (4).

7. The injection mold with adjustable number of heat dissipation channels according to claim 6, characterized in that: The heat dissipation rod (141) and the heat dissipation ring (142) are made of copper, which has good thermal conductivity. The heat dissipation rod (141) and the heat dissipation ring (142) are used for heat conduction and play a role in enhancing the heat dissipation effect.

8. The injection mold with adjustable number of heat dissipation channels according to claim 6, characterized in that: The device further comprises a water discharge mechanism (15), the water discharge mechanism (15) being arranged on the sliding frame (1014), the water discharge mechanism (15) comprising an L-shaped bar (151), a third fixing rod (152) and a hollow rod (153), the sliding frame (1014) being fixedly connected to the L-shaped bar (151), the third fixing rod (152) being fixedly connected below the L-shaped bar (151), the bottom end of the third fixing rod (152) being fixedly connected to the hollow rod (153), and the hollow rod (153) being located above the first fixing rod (5).

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