CN114228081A

CN114228081A - Injection mold with adjustable quantity of heat dissipation channels

Info

Publication number: CN114228081A
Application number: CN202111564998.4A
Authority: CN
Inventors: 孙亮; 孙涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-25

Abstract

The invention relates to an injection mold, in particular to an injection mold with adjustable quantity of heat dissipation channels, which comprises a bottom plate, support columns, support blocks, a water tank and the like; eight support columns are fixedly connected to the top of the bottom plate in a distributed mode, a support block is fixedly connected to the middle of the upper portion of the bottom plate, a water tank is fixedly connected to the top of the support block, and the water tank is fixedly connected with the support columns. When the temperature of moulding plastics when normal within range, rivers circulate from last first and fourth annular water route inner loop extremely down in the lower mould is inside, and when the temperature of moulding plastics is higher, rivers circulate from last four annular water route inner loop extremely down in the lower mould is inside, and when the temperature of moulding plastics is lower, rivers circulate in four inside vertical water route inner loop of lower mould, have realized can adjusting the purpose of radiating efficiency according to the material of moulding plastics.

Description

Injection mold with adjustable quantity of heat dissipation channels

Technical Field

The present disclosure relates to injection molds, and particularly to an injection mold with adjustable heat dissipation channels.

Background

The injection molding can be realized by an injection molding machine and a mold, namely, the injection molding can be finished by feeding molten plastic into an injection device and a mold closing device of the mold, and the injection molding can also be divided into an injection molding die pressing method and a die casting method.

In the in-process of moulding plastics, the temperature in the mould can rise, consequently, the inside water route that generally is equipped with of injection mold, water is at the water route inner loop flow, carry out the heat exchange in order to realize radiating purpose between mould and the water, thereby can control the temperature of mould, so that the cooling and the shrink of better control plastics product in the mould, thereby control product size and surface requirement, but because the material of moulding plastics divide into the multiple, the temperature when the material of moulding plastics of difference is moulded plastics can be different, consequently need adjust the radiating efficiency according to the material of moulding plastics, and prior art does not possess the function of adjusting the radiating efficiency according to the material of moulding plastics, influence the quality of product easily, and prior art only dispels the heat through the water route, there is the not high condition of radiating efficiency.

Disclosure of Invention

Therefore, it is necessary to provide an injection mold with adjustable number of heat dissipation channels, which can automatically adjust heat dissipation efficiency according to an injection material and efficiently dissipate heat, to solve the problems that the prior art in the background art does not have a function of adjusting heat dissipation efficiency according to an injection material and has low heat dissipation efficiency.

The technical scheme is as follows: an injection mold with adjustable quantity of heat dissipation channels comprises a bottom plate, and further comprises support columns, support blocks, a water tank, first fixing rods, a sliding switch, a first reset spring, a lower mold, an upper mold, a first heat dissipation mechanism and an opening and closing mechanism, wherein eight support columns are fixedly connected to the top of the bottom plate in a distributed mode, the support blocks are fixedly connected to the middle part above the bottom plate, the water tank is fixedly connected to the top of each support block, the water tank is fixedly connected to the support columns, the first fixing rods are fixedly connected to the top of the bottom plate, the sliding switch is connected to the upper part of each first fixing rod in a sliding mode, the sliding switch is plugged at the bottom of the water tank, the first reset spring is connected between the sliding switch and the bottom plate, the lower mold is fixedly connected to the upper side of the inner side of the water tank, four annular water paths are arranged inside the lower mold and surround the outer portion of the mold in an evenly distributed mode, four vertical water paths are arranged inside the lower mold, and the upper mold is covered above the lower mold, an annular water path is arranged inside the upper die and communicated with four vertical water paths inside the lower die, a first heat dissipation mechanism is arranged on the lower die, and an opening and closing mechanism is arranged on the upper die.

As the improvement of the scheme, the annular water path in the lower die is used for circulating water and dissipating heat during injection molding.

As an improvement of the proposal, the first heat dissipation mechanism comprises a support frame, an electric push rod, a connecting strip, a first communicating pipe, a sliding U-shaped frame, a first sliding block, a first semicircular plate, a water inlet pipe, a second communicating 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 reset spring, a second water outlet pipe and a water pump, wherein the support frame is fixedly connected to the left side of the outer part of the lower die, the electric push rod is fixedly arranged on the support frame, the connecting strip is fixedly connected to the end part of a telescopic shaft of the electric push rod, the first communicating pipe is communicated to the left side of the lower die, the first communicating pipe adopts two cross-shaped channel structures, the right part of the first communicating pipe is communicated with four annular water channels in the lower die, the sliding U-shaped frame is fixedly connected to the left part of the connecting strip, the sliding U-shaped frame penetrates through the first communicating pipe, a pair of first sliding blocks is fixedly connected to the right part of the sliding U-shaped frame, and the first sliding blocks are connected with the first communicating pipe in a sliding way, a first semiround plate is fixedly connected to the lower portion of the right side of a first sliding block positioned above, the first semiround plate is connected with a first communicating pipe in a sliding mode, a water inlet pipe is communicated with the upper portion of the right side of the lower die, the water inlet pipe is of a T-shaped channel structure, the water inlet pipe is communicated with a first annular water path inside the lower die from top to bottom, a second communicating pipe is communicated with the middle portion of the right side of the lower die, the second communicating pipe is communicated with a second annular water path and a third annular water path inside the lower die from top to bottom, a first water outlet pipe is communicated with a first annular water path inside the lower die, the first water outlet pipe is communicated with a fourth annular water path inside the lower die from top to bottom, a telescopic pipe is communicated with the right portion of the upper die, the telescopic pipe is communicated with the water inlet pipe and can stretch, a pair of special-shaped push frames is fixedly connected to the right portion of a connecting bar, a sliding frame is connected on the water inlet pipe in a sliding mode, and penetrates through the water inlet pipe, the sliding frame is in contact with the special-shaped pushing frame, a second sliding block is fixedly connected to the upper portion of the sliding frame, the second sliding block is connected with the telescopic pipe in a sliding mode, a second semicircular plate is fixedly connected to the upper portion of the second sliding block, the second semicircular plate is connected with the telescopic pipe in a sliding mode, a second reset spring is connected between the second sliding block and the water inlet pipe, four second water outlet pipes are communicated with the bottom of the outer side of the lower die in a distributed mode, the second water outlet pipes are communicated with four vertical water paths inside the lower die, a water pump is fixedly connected to the bottom of the water tank, and the water pump is communicated with the water inlet pipe.

As an improvement of the scheme, the opening and closing mechanism comprises a first rotating ring, a sector gear, a second rotating ring, a second fixed rod, a third sliding block, a third reset spring, a sector plate, a rack, a flat gear and a wedge gear, wherein four first rotating rings are rotatably connected with the lower part in the upper die in a rectangular distribution mode, the sector gear is fixedly connected with the outer part of the first rotating ring, the second rotating ring is fixedly connected with the lower part of the first rotating ring, four arc-shaped sliding chutes are annularly distributed on the second rotating ring, sixteen second fixed rods are fixedly connected with the inner part of the upper die in a distributed mode, every four second fixed rods are annularly distributed, one end of each second fixed rod, far away from the upper die, is slidably connected with the third sliding block, the third sliding block is in limit fit with the second rotating ring, the third reset spring is connected between the third sliding block and the second fixed rod, and the sector plate is fixedly connected with the lower part of the third sliding block, the sector plate is contacted with the top of the lower die, four racks are fixedly connected to the top of the lower die in a distributed mode, four flat gears are rotatably connected to the inner portion of the upper die in a distributed mode, adjacent flat gears are meshed with the racks, wedge gears are fixedly connected to the flat gears, and the adjacent wedge gears are meshed with the sector gears.

As the improvement of the scheme, the improved structure comprises a sealing mechanism, wherein the sealing mechanism is arranged on the lower die and comprises a first sealing ring and a second sealing ring, the top of the lower die is fixedly connected with the first sealing ring in a four-corner distribution mode, the bottom of the upper die is fixedly connected with the second sealing ring in a four-corner distribution mode, and the second sealing ring is in contact with the first sealing ring.

As the improvement of the scheme, the diameter of the first sealing ring is larger than that of the second sealing ring, and the first sealing ring and the second sealing ring are used for sealing during water injection, so that water is prevented from leaking to the surface of the lower die during water injection.

As the improvement of the scheme, the improved structure of the mold comprises a control mechanism, wherein the control mechanism is arranged on the lower mold and comprises a temperature sensor, a support, a control module and a display screen, the temperature sensor is fixedly connected to the left side inside the lower mold, the support is fixedly connected to the front side outside the lower mold, the control module is fixedly connected to the support, and the display screen is fixedly connected to the support.

As the improvement of above-mentioned scheme, still including the second heat dissipation mechanism, on the lower mould was located to the second heat dissipation mechanism, the second heat dissipation mechanism was including heat dissipation stick and radiating ring, and the lower mould is inside to be annular distributing type rigid coupling and has four pairs of heat dissipation sticks, and the heat dissipation stick passes lower mould and last mould, and common rigid coupling has the radiating ring between four pairs of heat dissipation stick bottoms, and the radiating ring is located inside the water tank.

As the improvement of the scheme, the heat dissipation rod and the heat dissipation ring are made of copper, so that the heat conduction performance is good, and the heat dissipation rod and the heat dissipation ring are used for conducting heat and enhancing the heat dissipation effect.

As the improvement of above-mentioned scheme, still including sluicing mechanism, sluicing mechanism locates on the carriage, sluicing mechanism is including L shape strip, third dead lever and hollow pole, and the rigid coupling has L shape strip on the carriage, and L shape strip below rigid coupling has the third dead lever, and third dead lever bottom rigid coupling has hollow pole, and hollow pole is located first dead lever top.

The beneficial effects are that:

1. when the temperature of moulding plastics when normal within range, rivers circulate from last first and fourth annular water route inner loop extremely down in the lower mould is inside, and when the temperature of moulding plastics is higher, rivers circulate from last four annular water route inner loop extremely down in the lower mould is inside, and when the temperature of moulding plastics is lower, rivers circulate in four inside vertical water route inner loop of lower mould, have realized can adjusting the purpose of radiating efficiency according to the material of moulding plastics.

2. The temperature of the lower die is sensed through the temperature sensor, the temperatures of different injection molding materials are different, the temperature sensor can control the electric push rod to extend or contract, so that the number of the heat dissipation channels in the equipment is changed, the number of the heat dissipation channels can be automatically adjusted according to the different injection molding materials, and the purpose of automatically adjusting the number of the heat dissipation channels according to the different injection molding materials is achieved.

3. Through the cooperation of the sector plate and the device on the sector plate, when the upper die and the device on the upper die ascend, the sector plate can be automatically closed, water in the upper die is prevented from leaking, and the product quality is effectively guaranteed.

4. Through the cooperation of slide switch and device on it, when needs clear up the pipeline and the heat dissipation channel of equipment inside, slide switch can open, is convenient for discharge the water of water tank inside, is convenient for discharge the sewage of clearance in-process simultaneously.

5. Through radiating rod and heat dissipation ring, can be effectively with the heat transfer of lower mould and last mould to the water level in the water tank below, further improved the radiating efficiency, be favorable to improving injection moulding product's quality, realized can carrying out radiating purpose high-efficiently.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic view of a first partially cut-away perspective structure of the present invention.

Fig. 4 is a partial perspective view of the present invention.

Fig. 5 is a second partially sectional perspective view of the present invention.

FIG. 6 is a schematic sectional, disassembled and three-dimensional structure of the lower mold and the upper mold of the present invention.

Fig. 7 is a schematic sectional perspective view of the lower mold and the upper mold according to the present invention.

Fig. 8 is a schematic sectional perspective view of the upper mold according to the present invention.

Fig. 9 is a schematic view of a first cross-sectional three-dimensional structure of the lower mold of the present invention.

Fig. 10 is a schematic view of a second cross-sectional three-dimensional structure of the lower mold of the present invention.

Fig. 11 is a schematic diagram of a first partially cross-sectional three-dimensional structure of the first heat dissipation mechanism of the present invention.

Fig. 12 is a schematic diagram of a second partially cross-sectional three-dimensional structure of the first heat dissipation mechanism of the present invention.

Fig. 13 is a schematic diagram of a third partially sectional perspective structure of the first heat dissipation mechanism of the present invention.

Fig. 14 is a third partially sectional perspective view of the present invention.

Fig. 15 is a schematic perspective view of a part of the opening and closing mechanism of the present invention.

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

Fig. 17 is a schematic view of a fourth partially sectional perspective structure of the present invention.

Fig. 18 is a schematic disassembled perspective structure of the sealing mechanism of the present invention.

Fig. 19 is a schematic sectional perspective view of the control mechanism of the present invention.

Fig. 20 is a schematic sectional perspective view of a second heat dissipation mechanism according to the present invention.

Fig. 21 is a schematic perspective view of a partial cross-sectional structure of a water discharge mechanism according to the present invention.

Fig. 22 is a schematic sectional perspective view of a drainage mechanism according to the present invention.

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

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1

An injection mold with adjustable number of heat dissipation channels, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, fig. 14, fig. 15 and fig. 16, comprises a bottom plate 1, support pillars 2, support blocks 3, a water tank 4, a first fixing 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, wherein the top of the bottom plate 1 is fixedly connected with eight support pillars 2 in a distributed manner, the support blocks 3 are fixedly connected to the middle part above the bottom plate 1, the water tank 4 is fixedly connected to the top of the support blocks 3, the support pillars 2 and the support blocks 3 are used for supporting the water tank 4, the water tank 4 is fixedly connected to the support pillars 2, the first fixing rod 5 is fixedly connected to the top of the bottom plate 1, the sliding switch 6 is used for blocking the bottom of the water tank 4 in a sliding manner, slide switch 6 stopper is in 4 bottoms of water tank, be connected with first reset spring 7 between slide switch 6 and the bottom plate 1, 4 inboard top rigid couplings of water tank have bed die 8, the inside annular water route that is equipped with of bed die 8, this water route is evenly distributed's mode and encircles outside the model, the inside vertical water route that is equipped with of bed die 8, bed die 9 has been covered above 8, the inside annular water route that is equipped with of bed die 9, this annular water route communicates with each other with four inside vertical water routes of bed die 8, be equipped with first heat dissipation mechanism 10 on the bed die 8, first heat dissipation mechanism 10 is used for dispelling the heat according to the material of moulding plastics of difference, be equipped with on the bed die 9 and open and shut mechanism 11, open and shut mechanism 11 is used for preventing that water from taking place to leak.

The first heat dissipation mechanism 10 includes a support frame 101, an electric push rod 102, a connecting bar 103, a first communicating pipe 104, a sliding U-shaped frame 105, a first sliding block 106, a first semi-circular plate 107, a water inlet pipe 108, a second communicating pipe 109, a first water outlet pipe 1011, an extension pipe 1012, a special-shaped push frame 1013, a sliding frame 1014, a second sliding block 1015, a second semi-circular 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 exterior of the lower mold 8, the electric push rod 102 is fixedly installed on the support frame 101, the connecting bar 103 is fixedly connected to the end of the extension shaft of the electric push rod 102, the electric push rod 102 is used for driving the connecting bar 103 and the upper device to move, the first communicating pipe 104 is connected to the left side of the lower mold 8, the first communicating pipe 104 adopts a structure of two cross channels, the right portion of the first communicating pipe 104 is connected to four annular water channels inside the lower mold 8, the left portion of the connecting bar 103 is fixedly connected to the sliding U-shaped frame 105, a sliding U-shaped frame 105 penetrates through a first communicating 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 used for blocking the first communicating pipe 104, the first sliding blocks 106 are slidably connected with the first communicating pipe 104, a first semicircular plate 107 is fixedly connected to the lower part of the right side of the first sliding block 106 positioned above, the first semicircular plate 107 adopts an arc surface structure, the first semicircular plate 107 is slidably connected with the first communicating pipe 104, the upper part of the right side of the lower die 8 is communicated with a water inlet pipe 108, water in the water tank 4 flows into an annular water channel inside the lower die 8 through the water inlet pipe 108, the water inlet pipe 108 adopts a T-shaped channel structure, the water inlet pipe 108 is communicated with a first annular water channel from top to bottom inside the lower die 8, the middle part of the right side of the lower die 8 is communicated with a second communicating pipe 109, and the second communicating pipe 109 is used for communicating a second annular water channel from top to bottom inside the lower die 8, the second communicating pipe 109 is communicated with the second and third annular water ways from top to bottom in the lower die 8, the lower part of the right side of the lower die 8 is communicated with a first water outlet pipe 1011, the first water outlet pipe 1011 is communicated with the fourth annular water way from top to bottom in the lower die 8, the right part of the upper die 9 is communicated with an extension pipe 1012, water flow can flow to the annular water way in the upper die 9 through the extension pipe 1012, the extension pipe 1012 is communicated with a water inlet pipe 108, the extension pipe 1012 can extend and retract, the extension pipe 1012 is communicated with the annular water way in the upper die 9, the right part of the connecting bar 103 is fixedly connected with a pair of special-shaped push frames 1013, asymmetric inclined edges are arranged on the special-shaped push frames 1013, a sliding frame 1014 is slidably connected on the water inlet pipe 108, the special-shaped push frames 1013 are used for extruding the sliding frame 1014 to move downwards, the sliding frame 1014 passes through the water inlet pipe 108, the sliding frame 1014 is contacted with the special-shaped push frames 1013, and the upper part of the sliding frame 1014 is fixedly connected with a second sliding block 1015, second sliding block 1015 is used for plugging up flexible pipe 1012, second sliding block 1015 and flexible pipe 1012 sliding connection, second sliding block 1015 upper portion rigid coupling has second semicircle board 1016, be equipped with the cambered surface on second semicircle board 1016, second semicircle board 1016 is used for plugging up oral siphon 108, play the effect of the flow direction of control water, second semicircle board 1016 and flexible pipe 1012 sliding connection, be connected with second reset spring 1017 between second sliding block 1015 and the

oral siphon

108, 8 bottom distributing type switch-on in the bottom of bed die outside has four second outlet pipes 1018, the inside water of bed die 8 can be discharged through second outlet pipe 1018, second outlet pipe 1018 and the inside vertical water route switch-on of bed die 8, water pump 1019 rigid coupling is in 4 bottom in the water tank, water pump 1019 and oral siphon 108 switch-on.

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 at the inner lower part of the upper die 9 in a rectangular distribution mode, the sector gear 112 is fixedly connected at the outer part of the first rotating ring 111, the second rotating ring 113 is fixedly connected below the first rotating ring 111, four arc sliding chutes are formed in an annular distribution mode on the second rotating ring 113, sixteen second fixed rods 114 are connected at the inner part of the upper die 9 in a distributed mode through welding, every four second fixed rods 114 are distributed in an annular mode, one end of each second fixed rod 114, which is far away from the upper die 9, is slidably connected with the third sliding block 115, the second rotating ring 113 plays a role in guiding for the third sliding block 115, and the third sliding block 115 is in limit fit with the second rotating ring 113, a third return spring 116 is connected between a third sliding block 115 and a second fixing rod 114, a sector plate 117 is fixedly connected to the lower portion of the third sliding block 115, the sector plate 117 is used for blocking a water outlet of an annular water channel in the upper die 9, the sector plate 117 is in contact with the top of the lower die 8, four racks 118 are fixedly connected to the top of the lower die 8 in a distributed manner, four flat gears 119 are rotatably connected to the inner portion of the upper die 9 in a distributed manner, adjacent flat gears 119 are meshed with the racks 118, wedge gears 1111 are connected to the flat gears 119 in a welded manner, adjacent wedge gears 1111 are meshed with the sector gears 112, and the wedge gears 1111 are located below the sector gears 112.

The mold has a large amount of heat during operation, so that the mold needs to be radiated to better cool and contract a plastic model product, water for radiating is filled in the water tank 4, the material with higher injection temperature needs higher radiating according to different materials of the injection molded product, the material with lower injection temperature needs lower radiating, when the injection molding temperature is in a normal range, a worker firstly controls the water pump 1019 to start, the water pump 1019 pumps the water in the water tank 4 upwards through the water inlet pipe 108, the water cannot flow to the telescopic pipe 1012 because the telescopic pipe 1012 is blocked by the second sliding block 1015 at the moment, the water enters the first annular water path from top to bottom in the lower mold 8 through the water inlet pipe 108 and then enters the first communicating pipe 104, and the communicating parts of the first communicating pipe 104 and the second annular water path and the third annular water path from top to bottom in the lower mold 8 are blocked by the first sliding block 106, so that the water can flow into the fourth annular waterway from top to bottom inside the lower mold 8 through the first communicating pipe 104, and then the water can be discharged through the first water outlet pipe 1011 and flow back to the inside of the water tank 4. In the process, water can circulate in the lower die 8 from the first annular waterway and the fourth annular waterway from top to bottom, so that the heat of the die can be effectively dissipated, and the cooling and the contraction of a plastic model product injected by the die can be conveniently controlled.

According to different injection molding product materials, when the injection molding temperature is high, high heat dissipation efficiency is needed, a worker manually controls the electric push rod 102 to extend to a proper length, the electric push rod 102 drives the connecting bar 103 and the upper device thereof to move leftwards to a proper position, the sliding U-shaped frame 105 and the upper device thereof also move together, so that the first semi-circular plate 107 blocks the lower through hole of the cross channel with the first communicating pipe 104 positioned above, the two first sliding blocks 106 do not block the first communicating pipe 104 any more, when water flows to the first communicating pipe 104 from the first annular water channel from top to bottom in the lower mold 8, the water flow only flows to the second annular water channel from top to bottom in the lower mold 8, then the water flow flows to the third annular water channel from top to bottom in the lower mold 8 through the second communicating pipe 109 and then flows to the first communicating pipe 104, because the lower through hole of the cross channel with the first communicating pipe 104 positioned above is blocked by the first semi-circular plate 107, so that water flow can only flow from the first communication pipe 104 to the fourth annular water path from top to bottom inside the lower mold 8 and is discharged through the first water outlet pipe 1011, and the water flow circulates in the four annular water paths inside the lower mold 8 in the above process, so that the heat dissipation efficiency is higher, and the water-cooling heat dissipation device is suitable for injection molding materials with higher injection molding temperature. When the injection molding material with the injection molding temperature within the normal range needs to be radiated again, the operator manually controls the electric push rod 102 to reset, and then the connecting strip 103 and the devices thereon are reset in the opposite direction.

When the injection molding temperature is low, low heat dissipation efficiency is needed, a worker manually controls the electric push rod 102 to contract, the electric push rod 102 drives the connecting bar 103 and the upper device to move rightwards, the special-shaped pushing frame 1013 also moves rightwards together, the special-shaped pushing frame 1013 pushes the sliding frame 1014 and the upper device to move downwards, the second return spring 1017 is compressed accordingly, the second semicircular plate 1016 blocks the left side of the water inlet pipe 108, water cannot enter the first annular water path from top to bottom inside the lower mold 8, meanwhile, the second sliding block 1015 no longer blocks the telescopic pipe 1012, water can flow from the water inlet pipe 108 to the telescopic pipe 1012 and then to the annular water path inside the upper mold 9, water flows from the annular water path inside the upper mold 9 to the four vertical water paths inside the lower mold 8, and then the water flows out through the second water outlet pipe 1018 and flows back to the water tank 4, through the operation, water flows flow in the four vertical water paths inside the lower die 8 and radiate heat for the injection molding material with lower temperature, and the four vertical water flows have lower heat radiating efficiency than the four annular water flows, so that the injection molding material with lower injection molding temperature is suitable for the injection molding material with lower injection molding temperature.

The upper die 9 is connected with an external telescopic device, the upper die 9 and the upper device thereof are driven to ascend or descend by the external telescopic device for injection molding, when the upper die 9 and the upper device thereof move upwards, the flat gear 119 and the upper device thereof rotate under the action of the rack 118, the wedge gear 1111 drives the sector gear 112 and the upper device thereof to rotate, the second rotating ring 113 also rotates, the second rotating ring 113 drives the adjacent third sliding block 115 and the upper device thereof to move inwards, the third return spring 116 is stretched accordingly, the adjacent sector plates 117 also move inwards together, so that the adjacent sector plates 117 form a circle and block the water outlet of the annular water channel inside the upper die 9, the water inside the upper die 9 is prevented from leaking when the upper die 9 and the upper device thereof are reset downwards, the flat gear 119 and the upper device thereof rotate reversely under the action of the rack 118, the wedge gear 1111 will drive the sector gear 112 and the device thereon to rotate reversely, and the third return spring 116 will return accordingly and drive the third sliding block 115 and the device thereon to return, so that the sector plate 117 will return and no longer block the water outlet of the annular water channel inside the upper mold 9, thereby facilitating the continuous heat dissipation.

Example 2

On the basis of embodiment 1, as shown in fig. 17 and 18, the sealing device further includes a sealing mechanism 12, the sealing mechanism 12 is disposed on the lower mold 8, the sealing mechanism 12 is used for preventing water from leaking to the surface of the lower mold 8 when water is injected, 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, 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 in an annular structure, 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 that of the second sealing ring 122.

When the upper mold 9 and the upper device thereof are reset downwards and cover the lower mold 8, the first sealing ring 121 and the second sealing ring 122 are tightly attached to each other, so that water is prevented from leaking to the surface of the lower mold 8 during water injection.

Example 3

On the basis of embodiment 2, as shown in fig. 19, the heat dissipation device further includes a control mechanism 13, the control mechanism 13 is disposed on the lower mold 8, the control mechanism 13 is configured 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 inside the lower mold 8, the temperature sensor 131 is configured to sense the temperature of the lower mold 8 during injection molding, the bracket 132 is fixedly connected to the front side outside 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 display screen 134 is fixedly connected to the bracket 132, and the display screen 134 is configured to display temperature information.

Temperature sensor 131 is used for the temperature of lower mould 8 when real-time induction is moulded plastics, the temperature that temperature sensor 131 sensed can show on display screen 134, the staff of being convenient for knows the temperature of moulding plastics at any time, when temperature sensor 131 senses the temperature of lower mould 8 is higher, temperature sensor 131 can extend to suitable length through control module 133 control electric putter 102, when temperature sensor 131 senses the temperature of lower mould 8 in normal range, temperature sensor 131 can reset through control module 133 control electric putter 102, when temperature sensor 131 senses the temperature of lower mould 8 is lower, temperature sensor 131 can control electric putter 102 through control module 133 and contract to suitable length, be convenient for automatically according to temperature control radiating efficiency.

Example 4

On the basis of embodiment 3, as shown in fig. 20, the heat sink further includes a second heat dissipation mechanism 14, the second heat dissipation mechanism 14 is disposed on the lower mold 8, the second heat dissipation mechanism 14 is used for making the heat dissipation effect better, 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 to the inside of the lower mold 8 in an annular distributed manner, the heat dissipation rods 141 penetrate through the lower mold 8 and the upper mold 9, the heat dissipation ring 142 is fixedly connected between the bottom ends of the four pairs of heat dissipation rods 141, the heat dissipation rod 141 and the heat dissipation ring 142 are made of copper materials, the heat dissipation rod 141 and the heat dissipation ring 142 are used for conducting heat, and the heat dissipation ring 142 is located inside the water tank 4.

The heat dissipation rods 141 and the heat dissipation ring 142 are made of copper materials, so that the heat transfer effect is good, and the heat of the lower die 8 and the upper die 9 can be better transferred to the position below the water level in the water tank 4, so that the heat dissipation effect is better.

Example 5

Based on the embodiment 4, as shown in fig. 21 and 22, the pipeline cleaning device further includes a water draining mechanism 15, the water draining mechanism 15 is disposed on the sliding frame 1014, the water draining mechanism 15 is used for draining sewage when cleaning a pipeline, the water draining mechanism 15 includes an L-shaped bar 151, a third fixing rod 152 and a hollow rod 153, the L-shaped bar 151 is fixedly connected to the sliding frame 1014, the third fixing rod 152 is fixedly connected to the lower portion of the L-shaped bar 151, the hollow rod 153 is fixedly connected to the bottom end of the third fixing rod 152, the hollow rod 153 is used for extruding the sliding switch 6, and the hollow rod 153 is located above the first fixing rod 5.

When the water ways in the lower die 8 and the upper die 9 and the pipelines in the device need to be cleaned, a worker manually controls the electric push rod 102 to extend for a long distance, the special-shaped push frame 1013 can extrude the sliding frame 1014 and the upper device thereof to move downwards for a long distance, meanwhile, the sliding frame 1014 can drive the L-shaped bar 151 and the upper device thereof to move downwards, the hollow rod 153 can extrude the sliding switch 6, the first return spring 7 can be compressed therewith, so that the sliding switch 6 is not blocked at the bottom of the water tank 4, water in the water tank 4 can be discharged, and meanwhile, sewage discharged in the process of cleaning the pipelines can be discharged through the through hole at the bottom of the water tank 4.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Claims

1. The utility model provides an injection mold who possesses adjustable heat dissipation passageway quantity, includes bottom plate (1), characterized by: the heat dissipation device is characterized by further comprising support columns (2), support blocks (3), a water tank (4), a first fixing rod (5), a sliding switch (6), a first reset spring (7), a lower die (8), an upper die (9), a first heat dissipation mechanism (10) and an opening and closing mechanism (11), wherein the top of the bottom plate (1) is fixedly connected with eight support columns (2) in a distributed mode, the support blocks (3) are fixedly connected to the middle of the upper portion of the bottom plate (1), the water tank (4) is fixedly connected to the top of the support blocks (3), the water tank (4) is fixedly connected with the support columns (2), the first fixing rod (5) is fixedly connected to the top of the bottom plate (1), the sliding switch (6) is connected to the upper portion of the first fixing rod (5) in a sliding mode, the sliding switch (6) is plugged at the bottom of the water tank (4), the first reset spring (7) is connected between the sliding switch (6) and the bottom plate (1), the lower die (8) is fixedly connected to the upper portion of the inner side of the water tank (4), the inner portion of the lower die (8) is provided with four annular water paths, the water paths are uniformly distributed and encircle the outer portion of the die, the inner portion of the lower die (8) is provided with four vertical water paths, the upper portion of the lower die (8) is covered with the upper die (9), the inner portion of the upper die (9) is provided with the annular water paths, the annular water paths are communicated with the four vertical water paths inside the lower die (8), the lower die (8) is provided with a first heat dissipation mechanism (10), and the upper die (9) is provided with an opening and closing mechanism (11).

2. An injection mold with adjustable number of heat dissipation channels as defined in claim 1, wherein: and the annular water path inside the lower die (8) is used for circulating water and dissipating heat during injection molding.

3. An injection mold with adjustable number of heat dissipation channels as defined in claim 1, wherein: the first heat dissipation mechanism (10) comprises a support frame (101), an electric push rod (102), a connecting strip (103), a first communicating 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 communicating 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 reset 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 outside of the lower die (8), the electric push rod (102) is fixedly mounted on the support frame (101), the connecting strip (103) is fixedly connected to the end part of the telescopic shaft of the electric push rod (102), the first communicating pipe (104) is communicated to the left side of the lower die (8), the first communicating pipe (104) adopts a two cross channel structure, the right part of a first communicating pipe (104) is communicated with four annular water paths in a lower die (8), the left part of a connecting bar (103) is fixedly connected with a sliding U-shaped frame (105), the sliding U-shaped frame (105) penetrates through the first communicating pipe (104), the right part of the sliding U-shaped frame (105) is fixedly connected with a pair of first sliding blocks (106), the first sliding blocks (106) are connected with the first communicating pipe (104) in a sliding manner, the lower part of the right side of the first sliding blocks (106) above is fixedly connected with a first semi-circular plate (107), the first semi-circular plate (107) is connected with the first communicating pipe (104) in a sliding manner, the upper part of the right side of the lower die (8) is communicated with a water inlet pipe (108), the water inlet pipe (108) adopts a T-shaped channel structure, the water inlet pipe (108) is communicated with the first annular water path from top to bottom in the lower die (8), the middle part of the right side of the lower die (8) is communicated with a second communicating pipe (109), and the second communicating pipe (109) is communicated with the third annular water path from top to bottom in the lower die (8) from top The lower part of the right side of the lower die (8) is communicated with a first water outlet pipe (1011), the first water outlet pipe (1011) is communicated with a fourth annular waterway from top to bottom in the lower die (8), the right part of the upper die (9) is communicated with an extension pipe (1012), the extension pipe (1012) is communicated with a water inlet pipe (108), the extension pipe (1012) can extend and retract, the extension pipe (1012) is communicated with the annular waterway in the upper die (9), the right part of the connecting strip (103) is fixedly connected with a pair of special-shaped push frames (1013), the water inlet pipe (108) is slidably connected with a sliding frame (1014), the sliding frame (1014) penetrates through the water inlet pipe (108), the sliding frame (1014) is contacted with the special-shaped push frames (1013), the upper part of the sliding frame (1014) is fixedly connected with a second sliding block (1015), the second sliding block (1015) is slidably connected with the extension pipe (1012), the upper part of the second sliding block (1015) is fixedly connected with a second semicircular plate (1016), second semicircle board (1016) and flexible pipe (1012) sliding type connection, be connected with second reset spring (1017) between second sliding block (1015) and oral siphon (108), bed die (8) outside bottom distributing type switch-on has four second outlet pipes (1018), second outlet pipe (1018) and the inside four vertical water routes switch-on of bed die (8), bottom in water pump (1019) rigid coupling in water tank (4), water pump (1019) and oral siphon (108) switch-on.

4. An injection mold with adjustable number of heat dissipation channels as defined in claim 3, wherein: 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 reset spring (116), a sector plate (117), a rack (118), a flat gear (119) and a wedge gear (1111), wherein the four first rotating rings (111) are rotatably connected with the inner lower part of the upper die (9) in a rectangular distribution mode, the sector gear (112) is fixedly connected with the outer part of the first rotating ring (111), the second rotating ring (113) is fixedly connected with the lower part of the first rotating ring (111), four arc-shaped sliding grooves are formed in the second rotating ring (113) in an annular distribution mode, sixteen second fixed rods (114) are fixedly connected with the inner part of the upper die (9) in a distributed mode, each four second fixed rods (114) are distributed in an annular mode, one end, far away from the upper die (9), of each second fixed rod (114) is connected with the third sliding block (115) in a sliding mode, third sliding block (115) and second rotating ring (113) spacing fit, be connected with third reset spring (116) between third sliding block (115) and second dead lever (114), third sliding block (115) lower part rigid coupling has sector plate (117), sector plate (117) and lower mould (8) top contact, lower mould (8) top distributed rigid coupling has four racks (118), it is connected with four flat gear (119) to go up mould (9) inside distribution rotary type, adjacent flat gear (119) and rack (118) meshing, the rigid coupling has wedge gear (1111) on flat gear (119), adjacent wedge gear (1111) and sector gear (112) meshing.

5. An injection mold with adjustable number of heat dissipation channels as defined in claim 4, wherein: still including airtight mechanism (12), airtight mechanism (12) are located on bed die (8), and airtight mechanism (12) are including first sealing ring (121) and second sealing ring (122), and the mode rigid coupling that bed die (8) top is four corners and distributes has first sealing ring (121), and it has second sealing ring (122) to go up the mode rigid coupling that mould (9) bottom is four corners and distributes, and second sealing ring (122) and first sealing ring (121) contact.

6. An injection mold with adjustable number of heat dissipation channels as defined in claim 5, wherein: the diameter of the first sealing ring (121) is larger than that of the second sealing ring (122), and the first sealing ring (121) and the second sealing ring (122) are used for sealing during water injection and preventing water from leaking to the surface of the lower die (8) during water injection.

7. An injection mold with adjustable number of heat dissipation channels as defined in claim 5, wherein: still including control mechanism (13), control mechanism (13) are located on bed die (8), control mechanism (13) are including temperature sensor (131), support (132), control module (133) and display screen (134), the inside left side rigid coupling of bed die (8) has temperature sensor (131), the outside front side rigid coupling of bed die (8) has support (132), the rigid coupling has control module (133) on support (132), the rigid coupling has display screen (134) on support (132).

8. An injection mold with adjustable number of heat sink channels according to claim 7, wherein: still including second heat dissipation mechanism (14), second heat dissipation mechanism (14) are located on bed die (8), second heat dissipation mechanism (14) are including heat dissipation stick (141) and radiating ring (142), bed die (8) are inside to be annular distributed rigid coupling has four pairs of heat dissipation stick (141), heat dissipation stick (141) pass bed die (8) and last mould (9), common rigid coupling has radiating ring (142) between four pairs of heat dissipation stick (141) bottom, radiating ring (142) are located inside water tank (4).

9. An injection mold with adjustable number of heat sink channels according to claim 8, wherein: the heat dissipation rods (141) and the heat dissipation rings (142) are made of copper, so that the heat conduction performance is good, and the heat dissipation rods (141) and the heat dissipation rings (142) are used for conducting heat and have the function of enhancing the heat dissipation effect.

10. An injection mold with adjustable number of heat sink channels according to claim 8, wherein: still including sluicing mechanism (15), sluicing mechanism (15) are located on carriage (1014), sluicing mechanism (15) are including L shape strip (151), third dead lever (152) and hollow rod (153), the rigid coupling has L shape strip (151) on carriage (1014), L shape strip (151) below rigid coupling has third dead lever (152), third dead lever (152) bottom rigid coupling has hollow rod (153), hollow rod (153) are located first dead lever (5) top.