CN116373213A - Drawing head forming die - Google Patents

Abstract

The application relates to the field of dies and provides a drawing head forming die which comprises a movable die and a fixed die, wherein a movable die core is arranged in the movable die, a fixed die core is arranged in the fixed die, the curve of the movable die core and the inner wall of the fixed die core is arc-shaped, and a cavity is formed between the movable die core and the fixed die core; the fixed die is provided with a first core drawing die and a second core drawing die in a sliding manner; the first core drawing die extends into the forming cavity from the cavity opening at one end of the movable die core and the fixed die core, the second core drawing die extends into the forming cavity from the cavity opening at the other end of the movable die core and the fixed die core, and the first core drawing die and the second core drawing die are obliquely arranged along the curve of the inner walls of the movable die core and the fixed die core; and one end of the mold core is connected with the first core-pulling mold, and the other end of the mold core is connected with the second core-pulling mold and positioned in the forming cavity. The application has the effect of improving production efficiency.

Description

Drawing head forming die

Technical Field

The application relates to the field of dies, in particular to a drawing head forming die.

Background

The pull head belongs to one kind of water outlet equipment, is generally installed on the tap to be connected with tap through the hose, make the pull head can freely keep away from or be close to tap, thereby reach the effect that improves the water spray scope, the casing of pull head adopts the mode of moulding plastics to loose core, and because the inner chamber of pull head is generally arc form, lead to adopting conventional grinding apparatus of moulding plastics to hardly realize, when making current production pull head, generally half injection moulding with the pull head, then at hot melt as an organic whole, just so need two sets of moulds, and one more hot melt process, low in production efficiency.

Disclosure of Invention

In order to improve the problem of low production efficiency, the application provides a pull head forming die.

The application provides a pull head forming die adopts following technical scheme:

the drawing head forming die comprises a movable die and a fixed die, wherein a movable die core is arranged in the movable die, a fixed die core is arranged in the fixed die, the curves of the movable die core and the inner wall of the fixed die core are arc-shaped, and a forming cavity is formed between the movable die core and the fixed die core; the fixed die is provided with a first core drawing die and a second core drawing die in a sliding manner; the first core drawing die extends into the forming cavity from the cavity opening at one end of the movable die core and the fixed die core, the second core drawing die extends into the forming cavity from the cavity opening at the other end of the movable die core and the fixed die core, and the first core drawing die and the second core drawing die are obliquely arranged along the curve of the inner walls of the movable die core and the fixed die core; one end of the mold core is connected with the first core-pulling mold, and the other end of the mold core is connected with the second core-pulling mold and is positioned in the forming cavity; after the material is filled in the molding cavity, the product is cooled and molded, and when the mold is opened, the first core pulling mold is separated from the mold core, the second core pulling mold is used for extracting the mold core along the wall surface of the cavity of the molding cavity, so that the movable mold is separated from the mold, and the product is extracted.

Through adopting above-mentioned technical scheme, after filling the material to the shaping intracavity, be located the cavity inner wall in mold core and shaping chamber, wait for the material cooling shaping, first core drawing die moves along the incline direction, make first core drawing die and mold core separation, the second core drawing die drives the mold core along the incline direction and takes out from the shaping intracavity, in order to reach the effect of mold core drawing of patterns, then with movable mould benevolence and cover half benevolence separation, in order to take out the product drawing of patterns, need not to be connected through hot melt after a plurality of moulds injection moulding in proper order, can integrated injection moulding through the shaping chamber in movable mould benevolence and the cover half benevolence, thereby improve the holistic production efficiency of product.

Optionally, the first core-pulling die comprises a first driving piece, a driving piece seat, a first core-pulling head and a first core-pulling seat; the first core drawing seat is in sliding connection with the fixed die; the driving piece seat is arranged at one end, far away from the fixed die, of the first core pulling seat; the first driving piece is connected with the driving piece seat, and the output end of the first driving piece is connected with the fixed die; the first core pulling head is arranged on the first core pulling seat and penetrates through the first core pulling seat to extend into the forming cavity; and one end, far away from the second core-pulling die, of the die core is connected with the first core-pulling head.

Through adopting above-mentioned technical scheme, when needs are untied the mold core fixed, drive first driving piece output shrink, first driving piece output is connected with the cover half, consequently drive driving piece seat and first core drawing seat along incline direction removal to drive the first core-pulling head that is located the shaping intracavity and mold core separation, and break away from the shaping chamber, the mold core loses the locking effect of first core-pulling head, can be through the core extraction of second core-pulling mould with the mold core.

Optionally, the second core-pulling die comprises a second core-pulling seat, a moving seat, a second driving piece and a second core-pulling head; the second driving piece is arranged on the fixed die; the movable seat is in sliding connection with the fixed die and is obliquely arranged along an orifice of one end, far away from the first core-pulling die, of the fixed die core and the movable die core; the second core drawing seat is connected with the moving seat and the output end of the second driving piece; the second core-pulling head is connected with the second core-pulling seat and is positioned in the forming cavity; and one end, far away from the first core-pulling die, of the die core is connected with the second core-pulling head.

Through adopting above-mentioned technical scheme, first core drawing die and mold core separation, drive electric jar output shrink makes electric jar output drive second core drawing seat, removes the seat and removes along the incline direction who removes the seat to drive second core drawing head and mold core and take out from the shaping intracavity, in order to reach the effect of mold core drawing of patterns.

Optionally, the molding cavity is arc-shaped and cylindrical.

Through adopting above-mentioned technical scheme, the shaping chamber is the circular arc tube-shape of crooked form according to the arc curve of movable mould benevolence and cover half benevolence inner wall to the crookedness of adaptation product makes the product when being connected with kitchen guarding tap, and the suitability is higher, more is fit for human use habit.

Optionally, at least one group of molding cavities is arranged.

By adopting the technical scheme, the specific number of the molding cavities can be determined according to the sizes of the fixed mold core and the size required by the product molding cavity, and the more the number of the molding cavities is, the more the number of the products can be molded by single injection molding, so that the production efficiency is further improved.

Optionally, the fixed die is further provided with a first guide member and a second guide member; the first guide piece is in sliding connection with the first core-pulling die; the second guide piece is in sliding connection with the second core-pulling die.

Through adopting above-mentioned technical scheme, restrict the removal orbit of first core drawing die through first guide rail, restrict the removal orbit of second core drawing die through the second guide rail, make the orbit of advancing of first core drawing die and second core drawing die all be the arc unanimous with the cavity inner wall of shaping die cavity to make the mold core drawing of patterns more smooth and easy.

Optionally, the device also comprises a cooling device; and the cooling device is connected with the fixed die, the movable die, the first core drawing die and the second core drawing die.

Through adopting above-mentioned technical scheme, the material cooling solidification's time is longer, seriously influences core pulling drawing of patterns efficiency, consequently through accelerating the material cooling at cooling device, shortens the solidification time, improves production efficiency.

Optionally, the cooling device comprises a first cooling tube group, a second cooling tube group, a third cooling tube group and a fourth cooling tube group; the first cooling pipe group is connected with the first core-pulling die; the second cooling pipe group is connected with the second core-pulling die; the third cooling tube group is connected with the movable mold core; the fourth cooling tube group is connected with the fixed die core.

Through adopting above-mentioned technical scheme, when the material irritates and inputs into the shaping intracavity, external water pump opens the hydrologic cycle, and first cooling nest of tubes carries out the heat exchange to the product tip of first core pulling mould one end, and the second cooling nest of tubes carries out the heat exchange to second core drawing mould and mold core, makes the product inner wall obtain cooling, and the third cooling nest of tubes cools off the last half outer wall of product, and the fourth cooling nest of tubes cools off the lower half outer wall of product for the material solidification shaping through many places simultaneously, shortens the shaping time, improves production efficiency.

Optionally, a ventilation device is also included; the movable die and the fixed die are respectively provided with the ventilation device, and the ventilation device is connected with the cooling device.

Through adopting above-mentioned technical scheme, because the heat that cooling water contained, the cooling water circulation can continue to circulate residual heat to cooling device in, has reduced cooling device's cooling effect to the material, consequently through setting up ventilation unit, ventilation unit can cool down each cooling tube group through the air current to at the cooling in-process, carry out partial air cycle to the heat on material surface.

Optionally, the ventilation device comprises a ventilation member, a connecting pipeline and a sealing member; the fixed die core and the movable die core are internally provided with ventilation cavities, and the cooling device is positioned in the ventilation cavities; the sealing elements are sequentially arranged on the outer walls of the movable mold core and the fixed mold core, and wrap the cooling device and are positioned at the inlets of the movable mold core and the fixed mold core; the fans are sequentially arranged on the outer walls of the fixed die and the movable die.

Through adopting above-mentioned technical scheme, when cooling device starts, through ventilation piece synchronous start, ventilation piece changes the air flow velocity in ventilation chamber through connecting tube, makes the air current in the ventilation chamber cool off cooling device and cover half benevolence, movable mould benevolence, further improves cooling rate, maintains cooling device's cooling water circulation's stability simultaneously, and sealing member provides sealed effect, avoids appearing the gas leakage phenomenon.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after filling materials into a forming cavity, the materials are positioned on the inner walls of cavities of a mold core and the forming cavity, the materials are waited for cooling forming, the first core drawing mold moves along the inclined direction to separate the first core drawing mold from the mold core, the second core drawing mold drives the mold core to be taken out from the forming cavity along the inclined direction so as to achieve the effect of mold core demolding, then the movable mold core is separated from the fixed mold core to demold and take out a product, the movable mold core and the fixed mold core are not required to be connected through hot melting after sequential injection molding by a plurality of molds, and the integral injection molding can be realized through the forming cavities in the movable mold core and the fixed mold core, so that the integral production efficiency of the product is improved;

2. the first cooling tube group, the second cooling tube group, the third cooling tube group and the fourth cooling tube group are respectively internally provided with cooling water circulation through an external cooling water pump, when materials are poured into a molding cavity, the external water pump is started to circulate, the first cooling tube group exchanges heat with the end part of a product at one end of the first core-pulling die, the second cooling tube group exchanges heat with the second core-pulling die and the die core, the inner wall of the product is cooled, the third cooling tube group cools the upper half outer wall of the product, the fourth cooling tube group cools the lower half outer wall of the product, and the materials are solidified and molded through simultaneous cooling at a plurality of positions, so that the molding time is shortened, and the production efficiency is improved;

3. the ventilation device and the cooling device are synchronously started, the ventilation piece changes the air flow speed of the ventilation cavity through the connecting pipeline, so that the air flow in the ventilation cavity cools the cooling device, the fixed die core and the movable die core, the cooling speed is further improved, and meanwhile, the cooling water circulation stability of the cooling device is maintained.

Drawings

FIG. 1 is a schematic perspective view of a mold in example 1 of the present application;

fig. 2 is a schematic perspective view showing a state in which a movable mold insert is separated from a fixed mold insert in embodiment 1 of the present application;

fig. 3 is a schematic perspective view showing a bonding state of a movable mold insert and a fixed mold insert in embodiment 1 of the present application;

figure 4 is a schematic perspective view of a first mandrel of example 1 of the present application;

figure 5 is a schematic perspective view of a second mandrel of example 1 of the present application;

fig. 6 is a schematic perspective view of a fixed mold in a hidden state of a movable mold insert in embodiment 2 of the present application;

FIG. 7 is a schematic perspective view of a fixed mold insert and a second core barrel according to example 2 of the present application;

fig. 8 is a schematic perspective view of a third cooling tube set hidden by the fixed mold insert and the second core-pulling mold in embodiment 2 of the present application;

fig. 9 is a schematic perspective view of a ventilation device on a stationary mold in embodiment 3 of the present application;

FIG. 10 is a schematic sectional view of a stationary mold in embodiment 3 of the present application;

the marks in the drawings are: 1. the mold comprises a movable mold, 11, a movable mold core, 2, a fixed mold, 22, a fixed mold core, 221, a first guide component, 222, a second guide component, 3, a molding cavity, 4, a first core drawing mold, 41, a first driving component, 42, a driving component seat, 43, a first core drawing head, 44, a first core drawing seat, 5, a second core drawing mold, 51, a second core drawing seat, 52, a movable seat, 53, a second driving component, 54, a second core drawing head, 6, a mold core, 7, a cooling device, 71, a first cooling pipe group, 72, a second cooling pipe group, 73, a third cooling pipe group, 74, a fourth cooling pipe group, 8, a ventilation device, 81, a ventilation component, 82, a connecting pipe, 83, a sealing component, 84 and a ventilation cavity.

Detailed Description

The present application is described in further detail below with reference to fig. 1-10.

The embodiment of the application discloses a pull head forming die.

Example 1:

the drawing head forming die comprises a movable die 1, a fixed die 2 and a die core 6, wherein a movable die core 11 is arranged in the movable die 1, a fixed die core 22 is arranged in the fixed die 2, the curve of the inner wall of the movable die core 11 and the curve of the inner wall of the fixed die core 22 are arc-shaped, a forming cavity 3 is arranged between the movable die core 11 and the fixed die core 22 and is a space for forming a product, an infusion component for feeding a material is arranged on the movable die 1 and is infused into the forming cavity 3, the material is positioned in the forming cavity 3 for cooling, and is solidified and formed into a product, the forming cavity 3 is in a curved arc cylinder shape according to the arc curve of the inner wall of the movable die core 11 and the inner wall of the fixed die core 22, so that the curve of the product is matched, when the product is connected with a kitchen and bathroom faucet, the suitability is higher, the product is more suitable for the use habit of a human body, and the inner wall lines between the movable die core 11 and the fixed die core 22 are carved on the basis of information such as a label of a manufacturer, a grain mark, information, a size marking manufacturer and the like.

The fixed die 2 is provided with a first core drawing die 4 and a second core drawing die 5 in a sliding manner; the first core drawing die 4 extends into the forming cavity 3 from the cavity opening at one end of the movable die core 11 and the fixed die core 22, the second core drawing die 5 extends into the forming cavity 3 from the cavity opening at the other end of the movable die core 11 and the fixed die core 22, and one end of the die core 6 is clamped with the first core drawing die 4, and the other end of the die core 6 is fixedly connected with the second core drawing die 5.

The first core drawing die 4 and the second core drawing die 5 are obliquely arranged according to the arc curves of the inner walls of the movable die core 11 and the fixed die core 22, and the inclination angle is the inclination of the actual arc curve so as to be adapted to the forming cavity 3, and the situation that the die core 6 cannot be pulled and demoulded along the arc curves of the inner wall surfaces of the die core and the fixed die core 22 is prevented.

The mold core 6 is fixed in the molding cavity 3 through the first core drawing mold 4 and the second core drawing mold 5, after materials enter the molding cavity 3, a molded product is cooled, the mold core 6 is demolded through the first core drawing mold 4 and the second core drawing mold 5, if the first core drawing mold 4 is independently pulled out from the molding cavity 3, the mold core 6 cannot be taken out due to no power driving, so that the mold core 6 is pulled out due to the second core drawing mold 5, namely demolding can be realized, the second core drawing mold 5 is independently driven, the mold core 6 is locked by the first core drawing mold 4 and cannot be pulled out, the mold core 6 is pulled out due to the fact that the locking state of the first core drawing mold 4 is firstly unlocked, and then the second core drawing mold 5 is used for driving, so that a plurality of sets of molds are not needed, the integrated molding injection molding cooling molding is not needed, and the production efficiency is improved.

Referring to fig. 4, the first core barrel 4 includes a first driving member 41, a driving member seat 42, a first core barrel 43, and a first core barrel 44; the first core drawing seat 44 is obliquely arranged and can be in sliding connection with the fixed die 2, the first driving piece 41 can adopt an electric push rod, the electric push rod is arranged on the driving seat, the driving piece seat 42 is arranged at one end of the first core drawing seat 44 far away from the fixed die 2, namely, the top of the first core drawing seat 44, the output end of the electric push rod is connected with the fixed die 2, the first core pulling head 43 is arranged at one end of the first core drawing seat 44 far away from the electric push rod and penetrates through the first core drawing seat 44 to extend into the forming cavity 3, the first core pulling head 43 is provided with a clamping part, and the first core pulling head is interlocked with the mold core 6 through the clamping part and can only be separated along the oblique direction of the first core drawing seat 44, so that the second core drawing die 5 cannot draw the mold core 6 away from the forming cavity 3 before the first core pulling head 43 is not separated from the forming cavity 3.

When the mold core 6 needs to be unlocked and fixed, the output end of the electric push rod is driven to shrink, the output end of the electric push rod is connected with the fixed mold 2, and therefore the driving piece seat 42 and the first core drawing seat 44 are driven to move along the inclined direction, the first core drawing head 43 positioned in the molding cavity 3 is driven to be separated from the mold core 6 and separated from the molding cavity 3, the mold core 6 loses the locking function of the first core drawing head 43, and the mold core 6 can be drawn through the second core drawing mold 5.

Referring to fig. 5, the second core drawing die 5 includes a second core drawing die seat 51, a moving seat 52, a second driving member 53, and a second core drawing head 54; the second driving member 53 is installed on the fixed mold 2, the second driving member 53 may adopt a power element such as an electric push rod or an electric cylinder, in this embodiment, the moving seat 52 is slidably connected with the fixed mold 2, and is obliquely disposed along the cavity mouth of the fixed mold core 22 and the moving mold core 11, which is far away from one end of the first core-pulling mold 4, so as to adapt to the curved cavity inner wall of the forming cavity 3, so as to facilitate core pulling of the mold core 6, the second core-pulling seat 51 is installed on one side of the moving seat 52, which is far away from the electric cylinder, and the second core-pulling seat 51 is connected with the output end of the electric cylinder, the second core-pulling head 54 is installed on one end of the second core-pulling seat 51, which is near the mold core 6, and extends into the forming cavity 3, and the second core-pulling head 54 may be directly fixedly connected with the mold core 6, or may be detachably connected such as a screw connection, so as to facilitate separation and cleaning.

After the material is filled into the molding cavity 3, the material is positioned on the inner walls of the cavities of the mold core 6 and the molding cavity 3, the material is waited for cooling molding, the first core-pulling head 43 is separated from the mold core 6, the output end of the electric cylinder is driven to shrink, so that the output end of the electric cylinder drives the second core-pulling seat 51 and the moving seat 52 to move along the inclined direction of the moving seat 52, thereby driving the second core-pulling head 54 and the mold core 6 to be taken out from the molding cavity 3, achieving the demolding effect of the mold core 6, avoiding the need of hot melting connection after sequential injection molding through a plurality of molds, and achieving integral injection molding through the molding cavity 3 in the movable mold core 11 and the fixed mold core 22.

The number of the forming cavities 3 in the movable mold core 11 and the fixed mold core 22 can be at least one, the specific number can be determined according to the size of the fixed mold core 22 and the size required by the product forming cavity 3, the more the number of the forming cavities is, the more the number of the products which can be formed by single injection molding is, the production efficiency is further improved, the number of the forming cavities 3 is consistent with the number of the first core-pulling heads 43 and the second core-pulling heads 54, and the forming cavities 3 in the embodiment are provided with two groups, so that the first core-pulling heads 43 and the second core-pulling heads 54 are provided with two forming cavities 3 which can be formed by one-time injection molding, and the two products are cooled and are respectively extracted from the mold cores 6 by the respective first core-pulling heads 43 and the second core-pulling heads 54 for demolding.

The stationary mold 2 is further provided with a first guide 221 and a second guide 222; the first guide 221 is slidably connected to the first core die 4; the second guide piece 222 is slidably connected with the second core drawing die 5, the first guide piece 221 can adopt a first guide rail, the second guide piece 222 can adopt a second guide rail, the first core drawing seat 44 is slidably connected with the first guide rail, the moving seat 52 is slidably connected with the second guide rail, the first core drawing seat 44 limits the moving track through the first guide rail, and the moving seat 52 limits the moving track through the second guide rail, so that the moving tracks of the first core drawing seat 44 and the moving seat 52 are arc-shaped consistent with the inner wall of the cavity of the forming cavity 3, and the die core 6 can be released more smoothly.

The implementation principle of embodiment 1 of the present application includes: after filling the material into the molding cavity 3, the material is located on the inner walls of the mold core 6 and the molding cavity 3, the material is waiting for cooling molding, the first core drawing mold 4 moves along the inclined direction, the first core drawing mold 4 is separated from the mold core 6, the second core drawing mold 5 drives the mold 1 core to be taken out from the molding cavity 3, so that the mold core 6 is demolded, hot melting connection is not needed after sequential injection molding through a plurality of molds, and the molding cavity 3 in the fixed mold core 22 can be integrally injection molded through the movable mold core 11.

Example 2:

referring to fig. 6, the present embodiment 2 is optimized on the basis of embodiment 1, and includes a cooling device 7, and the cooling device 7 includes a first cooling tube group 71, a second cooling tube group 72, a third cooling tube group 73, and a fourth cooling tube group 74; the first cooling tube group 71 is connected to the first core pumping mould 4; the second cooling tube set 72 is connected to the second core die 5; the third cooling tube group 73 is connected with the movable mold core 11; the fourth cooling tube group 74 is connected to the stationary mold core 22.

In the injection molding process, the material enters the molding cavity 3, is positioned between the mold core 6 and the movable mold core 11 and the fixed mold core 22, is in a high-temperature fluid state, is solidified and molded after being cooled, and has a structural shape determined according to the inner wall surface of the cavity of the molding cavity 3, namely the inner wall surface between the movable mold core 11 and the fixed mold core 22 and the shape and the size of the mold core 6, and the cooling and solidifying time of the material is long, so that the core pulling and demolding efficiency is seriously influenced, and therefore, the first cooling pipe group 71 is arranged on the first core drawing mold 4, the second cooling pipe group 72 is arranged on the second core drawing mold 5, the third cooling pipe group 73 is arranged on the movable mold core 11, and the material at the corresponding position is simultaneously cooled through the three cooling devices 7, so that the cooling and solidifying efficiency is improved, the material molding speed is accelerated, and the production efficiency is improved.

Referring to fig. 7, one end of the first cooling tube set 71 extends through the first core pumping mold 4 seat to the first core pulling head 43, and the other end is connected with an external cooling water pump, so that the external cooling water pump circulates cooling water, and a connection point of the external cooling water pump and the first cooling tube set 71 can be connected by adopting a high-temperature-resistant hose, such as a metal hose, so as to adapt to a moving track of the first core pumping mold 4 seat.

The third cooling tube set 73 may be provided with a corresponding number of cooling tubes according to the size of the movable mold core 11 and the tube diameter of the third cooling tube set 73, and in this embodiment, the third cooling tube set 73 is provided with three cooling tubes, one end of the third cooling tube set 73 is located in the movable mold core 11, and the other end is externally connected with a cooling water pump to provide cooling water circulation.

The fourth cooling tube set 74 may be provided with a corresponding number of cooling tubes according to the size of the fixed mold core 22 and the tube diameter of the fourth cooling tube set 74, and in this embodiment, the fourth cooling tube set 74 is provided with two cooling tubes, one end of the fourth cooling tube set 74 is located in the fixed mold core 22, and the other end is externally connected with a cooling water pump to provide cooling water circulation.

Referring to fig. 8, one end of the second cooling tube set 72 extends through the movable seat 52 and the second core-pulling die 5 toward the first core-pulling head 43 until extending into the die core 6, so that the die core 6 can provide cooling, the other end is connected with an external cooling water pump, and the connection point of the external cooling water pump and the second cooling tube set 72 can also be connected with a high-temperature-resistant hose so as to adapt to the movement track of the movable seat 52.

The implementation principle of embodiment 2 of the present application includes: the first cooling tube group 71, the second cooling tube group 72, the third cooling tube group 73 and the fourth cooling tube group 74 are respectively internally provided with cooling water circulation through an external cooling water pump, when materials are poured into the molding cavity 3, the external water pump is started to circulate water, the first cooling tube group 71 exchanges heat with the end part of a product at one end of the first core drawing die 4, the second cooling tube group 72 exchanges heat with the second core drawing die 5 and the mold core 6, the inner wall of the product is cooled, the third cooling tube group 73 cools the upper half outer wall of the product, the fourth cooling tube group 74 cools the lower half outer wall of the product, and the materials are cooled simultaneously through a plurality of parts, so that the material solidification molding is accelerated, the molding time is shortened, and the production efficiency is improved.

Example 3

Referring to fig. 9, this embodiment 3 is optimized based on embodiment 2, and further includes a ventilation device 8; the movable die 1 and the fixed die 2 are respectively provided with a ventilation device 8, and the ventilation devices 8 are connected with a cooling device 7; because the water cooling effect of cooling device 7 can let the heat of material carry out the heat exchange with each cooling tube group, namely in the cooling water circulation process, get into the cooling water with the heat of material, because the heat that the cooling water contains, if not in time handle, the cooling water circulation can continue to circulate the residual heat in each cooling tube group, cooling device 7 cooling effect to the material has been reduced, therefore through setting up ventilation unit 8, ventilation unit 8 can cool down each cooling tube group through the air current, and in the cooling process, carry out partial air circulation to the heat on material surface, the heat of material can not only cool down through cooling device 7 cooling water circulation, can also cool down through ventilation unit 8 air circulation, and can also cool down to the remaining heat of cooling water, in order to reach when further improving cooling rate, realize maintaining cooling rate's stability.

Wherein the ventilation means 8 comprises a ventilation member 81, a connecting duct and a sealing member 83; the ventilation member 81 is a fan with general air flow, the sealing member 83 is a sucking disc nozzle, the connecting pipeline can adopt a metal hose, the ventilation cavity 84 is formed in the fixed die core 22 and the movable die core 11, each cooling tube group is located in the ventilation cavity 84, one part of each cooling tube group is tightly attached to the inner wall of the movable die core 11 and the fixed die core 22, one part of each cooling tube group is in a hollowed-out state with the ventilation cavity 84, the sealing member 83 is connected with the outer walls of the movable die core 11 and the fixed die core 22, the sealing member 83 wraps the cooling tube groups and is located at the inlets of the movable die core 11 and the fixed die core 22, the number of the sealing members 83 and the number of inlets of each cooling tube group penetrating through the movable die 1 or the fixed die 2 are the same, the position of the fan is arranged on the outer wall of the fixed die 2 or the movable die 1, in this embodiment, the air outlet of the fan is communicated with the sealing member 83 through the connecting pipeline, the ventilation cavity 84 is far away from the cavity opening at one end of the fan, the fan is used for discharging air flow with heat, and every 2-3 sealing members 83 can be connected in series or in parallel with the same fan through the connecting pipeline, so that the number of fans is not limited.

After the fan produces wind power, the wind power is conveyed to the sealing element 83 through the connecting pipeline, and the wind power is conveyed to the ventilation cavity 84 through the sealing element 83 until the wind power is discharged from the other side of the ventilation cavity 84, so that circulating air flow is formed, the flowing speed of the air flow is determined according to the using power of the fan, and when the air flow circulates, the air flowing speed of the surfaces of all cooling pipe groups and the ventilation cavity 84 wall surfaces in the movable mold core 11 and the fixed mold core 22 originally is quickened, so that the heat exchange speed of the cooling pipe groups, the movable mold core 11 and the fixed mold core 22 is quickened, cooling water circulating in cooling water is cooled, and the movable mold core 11 and the fixed mold core 22 are further cooled.

Referring to fig. 10, the ventilation cavity 84 is a spiral cavity, the spiral cavity is wound around each cooling tube set, so that the contact portion of each cooling tube set with the spiral cavity can be cooled by air flow, the contact portion of each cooling tube set with the spiral cavity is not contacted with the movable mold core 11 and the fixed mold core 22, so as to achieve the synchronous heat exchange effect, and the interval between the spiral cavities is determined according to the actual sizes of the movable mold core 11 and the fixed mold core 22.

The implementation principle of embodiment 3 of the present application includes: when the cooling device 7 is started, the ventilation piece 81 is synchronously started, and the ventilation piece 81 changes the air flow speed of the ventilation cavity 84 through the connecting pipeline, so that the air flow in the ventilation cavity 84 cools the cooling device 7, the fixed die core 22 and the movable die core 11, the cooling speed is further improved, and meanwhile, the stability of the cooling water circulation of the cooling device 7 is maintained.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The drawing head forming die is characterized by comprising a movable die (1) and a fixed die (2), wherein a movable die core (11) is arranged in the movable die (1), a fixed die core (22) is arranged in the fixed die (2), the curves of the movable die core (11) and the inner wall of the fixed die core (22) are arc-shaped, and a cavity (3) is formed between the movable die core (11) and the fixed die core (22); the fixed die (2) is provided with a first core drawing die (4) and a second core drawing die (5) in a sliding manner; the first core drawing die (4) extends into the forming cavity (3) towards the cavity opening at one end of the movable die core (11) and the fixed die core (22), the second core drawing die (5) extends into the forming cavity (3) towards the cavity opening at the other end of the movable die core (11) and the fixed die core (22), and the first core drawing die (4) and the second core drawing die (5) are obliquely arranged along the curves of the inner walls of the movable die core (11) and the fixed die core (22); one end of the mold core (6) is connected with the first core drawing mold (4), and the other end of the mold core is connected with the second core drawing mold (5) and is positioned in the forming cavity (3); after the material is filled in the forming cavity (3), products are cooled and formed, when the die is opened, the first core drawing die (4) is separated from the die core (6), the second core drawing die (5) is used for drawing the die core (6) along the wall surface of the cavity of the forming cavity (3), so that the movable die (1) is separated from the die, and the products are drawn out.

2. A drawing head forming die according to claim 1, wherein the first core drawing die (4) comprises a first driving member (41), a driving member seat (42), a first core drawing head (43) and a first core drawing seat (44); the first core drawing seat (44) is in sliding connection with the fixed die (2); the driving piece seat (42) is arranged at one end of the first core drawing seat (44) which is far away from the fixed die (2); the first driving piece (41) is connected with the driving piece seat (42), and the output end of the first driving piece is connected with the fixed die (2); the first core pulling head (43) is arranged on the first core pulling seat (44) and penetrates through the first core pulling seat (44) to extend into the forming cavity (3); one end of the mold core (6) far away from the second core drawing mold (5) is connected with the first core drawing head (43).

3. A drawing head forming die according to claim 1, wherein the second core drawing die (5) comprises a second core drawing seat (51), a moving seat (52), a second driving member (53) and a second core drawing head (54); the second driving piece (53) is mounted on the fixed die (2); the movable seat (52) is in sliding connection with the fixed die (2) and is obliquely arranged along an orifice at one end, far away from the first core drawing die (4), of the fixed die core (22) and the movable die core (11); the second core drawing seat (51) is connected with the moving seat (52) and is connected with the output end of the second driving piece (53); the second core pulling head (54) is connected with the second core pulling seat (51) and is positioned in the forming cavity (3); one end of the mold core (6) far away from the first core drawing mold (4) is connected with the second core drawing head (54).

4. A drawing head forming die according to claim 1, characterized in that the forming cavity (3) is arc-shaped cylindrical.

5. A drawing head forming die according to claim 1, characterized in that the number of forming cavities (3) is at least one group.

6. The drawing head molding die according to claim 1, wherein the stationary die (2) is further provided with a first guide (221) and a second guide (222); -said first guide (221) is slidingly connected to said first mandrel (4); the second guide (222) is slidingly coupled to the second core (5).

7. A drawing head forming die according to claim 1, further comprising a cooling device (7); the cooling device (7) is connected with the fixed die (2), the movable die (1), the first core drawing die (4) and the second core drawing die (5).

8. A drawing head forming die according to claim 7, wherein the cooling device (7) comprises a first cooling tube group (71), a second cooling tube group (72), a third cooling tube group (73) and a fourth cooling tube group (74); the first cooling tube set (71) is connected to the first core pumping mould (4); the second cooling tube set (72) is connected to the second core pumping die (5); the third cooling pipe group (73) is connected with the movable mold core (11); the fourth cooling tube group (74) is connected with the fixed die core (22).

9. A drawing head forming die according to claim 7, further comprising ventilation means (8); the movable die (1) and the fixed die (2) are respectively provided with a ventilation device (8), and the ventilation devices (8) are connected with the cooling device (7).

10. A drawing head forming die according to claim 9, characterized in that the ventilation means (8) comprise a ventilation member (81), a connecting duct and a sealing member (83); the fixed die core (22) and the movable die core (11) are internally provided with ventilation cavities (84), and the cooling device (7) is positioned in the ventilation cavities (84); the sealing pieces (83) are sequentially arranged on the outer walls of the movable die core (11) and the fixed die core (22), and the sealing pieces (83) wrap the cooling device (7) and are positioned at the inlets of the movable die core (11) and the fixed die core (22); the fans are sequentially arranged on the outer walls of the fixed die (2) and the movable die (1).

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