CN211164965U - Multi-runner water-cooling cover making mold - Google Patents

Abstract

The utility model provides a pair of multithread way fortune water-cooling's system lid mould, including one last mould and a lower mould, go up a mould profile of mould with a model face cooperation of lower mould forms and is used for the shaping a die cavity of bottle lid, goes up the mould and still includes a mould body, a cooling module and an ejecting module, the cooling module includes: a first fortune water subassembly and a second fortune water subassembly, wherein first fortune water subassembly has adopted the mode of sleeve pipe fortune water, and it includes that an interior sleeve pipe overlaps with the cover and establishes the outer mould water-stop tube of interior sleeve pipe, the second fortune water subassembly is followed the circumference setting of first fortune water subassembly includes a water distribution cover, connects at a screw core overcoat that divides the water distribution cover lower extreme to and with a screw core overcoat of screw core overcoat lower extreme inner wall complex, be formed with a core cooling runner simultaneously. The utility model provides a cracked problem of traditional part, improve the life-span, the one-way flow cooling fortune water is more even, improves cooling effect and cooling efficiency.

Description

Multi-runner water-cooling cover making mold

Technical Field

The utility model relates to a system covers the mould field, especially relates to a multithread way fortune water-cooling's system covers mould.

Background

China is a world packaging manufacturing and consuming nation, the proportion of plastic packages in the total output value of the packaging industry exceeds 30 percent, the plastic packages become a vitality army in the packaging industry, and play an irreplaceable role in various fields of food, beverage, daily necessities and industrial and agricultural production. In recent years, the packaging products and packaging materials in the plastic packaging industry are steadily increasing, and new materials, new processes, new technologies and new products for packaging are continuously emerging. Nowadays, plastic packages are mostly adopted for various beverages, cosmetics, medicines and the like, plastic bottle caps are not available in plastic bottle-containing structures, and the plastic bottle caps are often produced separately.

Machines and apparatuses for manufacturing plastic closures are various, among which the mould-making machines are most commonly used. The existing mould pressing and cap making machine adopts a plurality of compression moulding cap making moulds, each of which comprises an upper mould and a lower mould, wherein a water transporting cooling structure is arranged in each upper mould, as shown in fig. 1, a common water transporting cooling structure is provided in the prior art, wherein a threaded core inner sleeve 207 'is in threaded connection with the inner wall of a water distribution sleeve 210', a threaded novel outer sleeve 208 'is connected with the inner wall of the water distribution sleeve 210', a water transporting flow channel C is formed between the inner wall of the threaded core outer sleeve 208 'and the outer wall of the threaded core inner sleeve 207' through the combination of the threaded core outer sleeve 208 'and the threaded core inner sleeve 207', but the design of the structure leads the threaded core outer sleeve 208 'and the threaded core inner sleeve 207' not to be assembled and to be two completely independent parts, which leads to the partial wall thickness of the threaded core inner sleeve 207 'in the inner part to be thin, and the threaded core inner sleeve 207' is easy to generate transverse deformation during the mould opening and closing actions, the die is stuck, and the parts A and B in the figure 1 are broken and failed due to stress concentration, and the like, and the threaded core outer sleeve 208 'and the threaded core inner sleeve 207' designed in the way are complex in processing technology, high in manufacturing cost, poor in strength and poor in pressure bearing, so that the later maintenance cost of an enterprise is further increased, and the production efficiency is reduced.

Simultaneously, what traditional fortune water cooling method adopted is that vertical direction divides into 5 parts passageway and intakes, divide into 2 parts passageway when arriving the bottom, and this 2 parts passageway is rotatory half a circle again by relative 5 parts passageway backwaters in addition, and this kind of structural design leads to the rivers in 2 parts passageway inhomogeneous easily, and the insufficient effect of cooling is poor to it is not good to lead to bottle lid cooling design effect.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the utility model provides a multithread way fortune water-cooling's system lid mould has solved the cracked serious problem of part among the prior art, improves long service life, adopts direct one-way runner to improve the cooling effect simultaneously.

To achieve the object, the present invention provides a multi-channel water-cooled cap-making mold for preparing a bottle cap, the bottle cap comprising a bottom and a threaded sidewall formed around the bottom in a circumferential direction thereof; the multi-runner water-cooling cover making mold comprises: an go up mould and lower mould, go up the mould profile of mould and the cooperation of the lower model face of lower mould forms a die cavity that is used for the shaping bottle lid, go up the mould and still include: the upper die body comprises a cylindrical pipe sleeve and a fixed mounting piece, and the fixed mounting piece is mounted at the upper end of the cylindrical pipe sleeve; the cooling module is used for cooling and shaping the bottle cap in the mold cavity; the ejection module comprises an airflow auxiliary ejection structure and is used for assisting to blow out the bottle cap; wherein the cooling module comprises: a first water transport assembly disposed at the axis of the cylindrical pipe sleeve, comprising: the upper die water-stop sleeve comprises an upper die water-stop sleeve and a connector, wherein the inner sleeve is coaxially arranged in the upper die water-stop sleeve, an upper die cooling cavity is formed at the bottom of the upper die water-stop sleeve, the upper end of the inner sleeve extends to one end of the fixed mounting part and is connected with the connector, a first liquid inlet flow channel is formed in the axis of the inner sleeve, the first liquid inlet flow channel extends to the upper die cooling cavity from the connector, a first liquid return flow channel is formed on the inner wall of the upper die water-stop sleeve and the outer wall of the inner sleeve, the upper end of the upper die water-stop sleeve is connected with the fixed mounting part, and a first liquid return opening communicated with the first liquid return flow channel is further formed in the fixed mounting part; and a second fortune water subassembly, set up in the circumference of first fortune water subassembly, it includes: a water dividing sleeve, a threaded core outer sleeve and a threaded core inner sleeve; the water dividing sleeve is sleeved on the upper portion of the upper die water-stop casing, a second liquid inlet flow channel and a second liquid return flow channel are arranged in the wall body of the water dividing sleeve, the upper end portion of the thread core jacket is matched with the lower end portion of the upper die water-stop casing, a liquid inlet flow channel and a liquid return flow channel which are communicated with the second liquid inlet flow channel and the second liquid return flow channel are respectively arranged in the wall body of the thread core jacket, the lower end portion of the thread core jacket extends downwards to the bottom of the upper die water-stop casing, a thread groove is arranged on the outer wall of the thread core jacket in the circumferential direction close to the bottom of the upper die water-stop casing, the thread core jacket is sleeved on the bottom of the upper die water-stop casing and is positioned between the thread core jacket and the upper die water-stop casing, the upper end portion of the thread core jacket is connected with the inner wall, and the outer side wall of the threaded core inner sleeve corresponds to the inner side wall of the threaded core outer sleeve, a core cooling flow channel for bottle cap cooling and shaping of the threaded side wall is formed at the position of the threaded groove, the core cooling flow channel comprises a diversion cavity, a backflow cavity and an upper die liquid collecting flow channel, the liquid inlet drainage flow channel and the backflow drainage flow channel are respectively communicated with the diversion cavity and the backflow cavity, the diversion cavity is communicated with the upper die liquid collecting flow channel through a preset number of upper die diversion grooves formed in the outer side wall of the threaded core inner sleeve, and the upper die liquid collecting flow channel is communicated with the backflow cavity through a preset number of upper die backflow grooves formed in the outer side wall of the threaded core inner sleeve in a circumferential rotating circle.

Preferably, the lower mold includes: the third water transporting assembly is arranged in the die holder and comprises a lower die water-separating sleeve, a lower die pressing sleeve and a lower die cavity sleeve, the lower die cavity sleeve is positioned above the die holder, a lower die cooling cavity is formed at the upper end of the die holder and at the outer bottom of the lower die cavity, a third liquid inlet channel communicated with the lower die cooling cavity is formed in the middle of the die holder, the lower die water-separating sleeve is circumferentially arranged along the lower die cavity sleeve and is formed with a spiral water transporting channel with the outer side wall of the lower die cavity sleeve, the lower die pressing sleeve is arranged on the outer side of the die holder and is formed with a third liquid return channel with the lower die water-separating sleeve, one end of the spiral water transporting channel is communicated with the lower die cooling cavity, and the other end of the spiral water transporting channel is communicated with the third liquid return channel.

Further, the lower mold cooling cavity comprises: the lower die cavity sleeve comprises a predetermined number of lower die flow distribution grooves extending along the bottom center of the lower die cavity sleeve to the periphery and a lower die liquid collection flow channel arranged at the bottom of the lower die cavity sleeve and rotating for one circle in the circumferential direction; the water is transported in a mode of dispersing all around through the lower die diversion channel, and then the water enters the thread water transporting channel along the lower die liquid collecting channel in a rotating mode, the thread water transporting channel circulates in a one-way mode around the thread side wall of the bottle cap for a circle and then flows into the third liquid returning channel, the water transporting mode of the third water transporting assembly adopts one-way flowing, the problems of uneven flow speed and uneven flow are avoided, meanwhile, the strength of parts is increased, and the cooling effect and the cooling efficiency are improved; and moreover, the cooling area of the cooling water in the lower die liquid collecting channel is prolonged to the highest position of the thread side wall of the bottle cap, and the cooling efficiency is obviously improved due to the unidirectional rotation flowing area.

Preferably, the upper end part of the threaded core inner sleeve is in threaded connection with the inner wall of the threaded core outer sleeve.

Preferably, a first spring is sleeved at the position where the upper end part of the threaded core outer sleeve is matched with the water distribution sleeve, and is used for supporting and buffering the threaded core outer sleeve.

Preferably, a second spring is arranged between the water distribution sleeve and the cylindrical pipe sleeve and used for supporting and buffering the water distribution sleeve, providing forming pressure and restoring the upper die after the die is opened.

Preferably, the cylindrical pipe sleeve is connected with the fixing and mounting member by a screw.

The utility model has the advantages that:

compared with the prior art, the utility model provides a multi-runner water-cooling cover-making mold, wherein the upper mold comprises a cooling module, and the cooling module comprises a first water-transporting component and a second water-transporting component; wherein, the first water transporting component adopts a pipe sleeve mode, namely, a first liquid inlet flow channel is formed in the axis of the inner sleeve, the upper die water-stop sleeve is sleeved outside the inner sleeve, an upper die cooling cavity for cooling and shaping the bottom of the bottle cap is formed at the bottom of the upper die water-stop sleeve, and a first liquid return flow channel communicated with the upper die cooling cavity is formed between the upper die water-stop sleeve and the inner sleeve, so that the first water transporting component transports cooling water through a pipe sleeve type, the design structurally forms convection of low-temperature cooling water in the first liquid inlet flow channel and heating cooling water in the first liquid return flow channel while ensuring the cooling effect, further realizes the function of mutual heat exchange, ensures that the heating cooling water circulating along the first liquid return flow channel is properly cooled, and the first water transporting component ensures the cooling effect, the work of external equipment on heating and cooling water is reduced, and the energy consumption is reduced, so that the production cost is reduced. And simultaneously, the second fortune water subassembly is followed the circumference setting of first fortune water subassembly be equipped with a second inlet channel and a second return liquid runner in the wall body of branch water jacket, the upper end of screw core overcoat with go up the cooperation of mould water proof sheathed tube lower tip, be equipped with in the wall body of screw core overcoat respectively with the second inlet channel with a inlet drainage runner and a return liquid drainage runner that the second returned liquid runner communicates, screw core endotheca with screw core overcoat cooperation is formed with and is used for the bottle lid a core cooling channel that screw side wall cooling was stereotyped, the structural design that the second fortune water subassembly set up the runner in the wall body has been guaranteed divide the water jacket the screw core overcoat and the respective wall body of screw core endotheca all has certain wall thickness, and the change of wall thickness is even, by screw core overcoat with two parts of screw core endotheca synthesize a whole transport that realizes the cooling water And when the die is opened and closed, the die moves up and down in the same way, and the longitudinal tensile stress is not concentrated on the inner sleeve of the threaded core any more, so that the serious problem of the fracture of the traditional part is solved, and the service life of the cap making die is prolonged. In addition, the novel cooling flow channel of the second water conveying piece enables cooling water to enter the flow distribution cavity along the liquid inlet drainage channel, then the cooling water divided into a predetermined part by the upper die flow dividing groove is directly communicated to the upper die liquid collecting flow channel, then the cooling water unidirectionally rotates for a circle along the upper die liquid collecting flow channel, enters the backflow cavity through the upper die backflow grooves which are arranged oppositely, and finally enters the liquid return drainage flow channel; the water transporting mode of the second water transporting assembly adopts one-way flow, so that the problems of uneven flow speed and uneven flow are avoided, the strength of parts is increased, and the cooling effect and the cooling efficiency are improved.

Drawings

Fig. 1 is a water cooling structure of a cover making mold in the prior art provided by the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a multi-channel water-cooling cover-making mold according to an embodiment of the present invention;

fig. 3 is a sectional view of a multi-runner water-cooled cover-making mold according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the mechanism of the second water transport assembly of FIG. 3;

FIG. 5 is a schematic view of a partial structure of the multi-channel water-cooled cap-making mold of FIG. 3;

FIG. 6 is a view from D-D in FIG. 5;

fig. 7 is a schematic view of a structure of a threaded core inner sleeve provided in this embodiment.

In the figure: 1-fixed mounting piece, 2-upper die, 3-lower die, 4-air inlet, 10-bottle cap, 20-upper die body, 101-first liquid return port, 201-first liquid inlet, 201 a-first liquid inlet joint, 202-inner sleeve, 202 a-first liquid inlet flow channel, 202 b-first liquid return flow channel, 203-screw, 204-second spring, 205 a-outer sleeve, 205 b-inner sleeve, 206-upper die cooling cavity, 207 '-threaded core inner sleeve, 207 a-split cavity, 207 b-upper die split runner, 207 c-upper die liquid collecting flow channel, 207 d-upper die return runner, 207 e-return cavity, 208' -threaded core outer sleeve, 208 a-liquid inlet drainage flow channel, 208 b-liquid return drainage flow channel, 209-first spring, 210' -water distribution sleeve, 210 a-second liquid inlet joint, 210 b-second liquid return joint, 210 c-second liquid inlet flow channel, 210 d-second liquid return flow channel, 210 e-second liquid inlet, 210 f-second liquid return port, 211-upper die water-stop sleeve, 212-core cooling flow channel, 213-spiral tooth groove, 301-lower die water-stop sleeve, 302-third liquid return flow channel, 303-lower die pressing sleeve, 304-die holder, 304 a-third liquid inlet flow channel, 304 b-third liquid inlet, 305-lower die cooling cavity, 305 a-lower die diversion channel, 305 b-lower die liquid collection flow channel, 306-spiral water delivery flow channel, 307-lower die cavity sleeve.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

Examples

It should be noted that in the present embodiment, the words "wall body", "in-wall body", etc. are used for describing the structure, such as a water dividing sleeve 210, which is a sleeve structure having an inner wall and an opposite outer wall, and the entity between the inner wall and the outer wall of the sleeve is defined as the wall body of the water dividing sleeve, and the position between the inner wall and the outer wall in the wall body, and the description of the wall body and the wall body of other components is the same as that described above.

Referring to fig. 2 and 3, the multi-channel water-cooling cap-making mold provided in this embodiment is used for preparing a bottle cap 10, specifically, for compression molding of a plastic bottle cap 10, where the bottle cap 10 includes a bottom portion and a threaded sidewall formed around the bottom portion in a circumferential direction thereof; the multi-runner water-cooling cover making mold comprises: an upper die 2 and a lower die 3, an upper die surface (not shown) of the upper die 2 and a lower die surface (not shown) of the lower die 3 cooperating to form a mold cavity (not shown) for molding the bottle cap 10; wherein the upper mold 2 includes: an upper die body 20, a cooling module and an ejection module, the lower die 3 includes: a die holder 304 and a third water transport assembly.

Referring to fig. 2 and 3, the upper die body 20 includes: a cylindrical pipe sleeve and a fixing member 1, the cylindrical pipe sleeve includes an outer pipe sleeve 205a and an inner pipe sleeve 205b in this embodiment, the fixing member 1 is installed on the upper end of the outer pipe sleeve 205a of the cylindrical pipe sleeve through a screw 203, two sides of the fixing member 1 are respectively provided with a fixing hole for installing the multi-channel water-cooling cover making mold on a mold cover making machine, one end of the inner pipe sleeve 205b is arranged in the outer pipe sleeve 205a, and the other end extends downwards to the lower mold surface (not shown).

Referring to fig. 2 and 3, the cooling module is for cooling and shaping the bottle cap 10 in the mold cavity (not shown), and includes: a first water transport assembly and a second water transport assembly; wherein the first water transporting assembly is arranged at the axis of the cylindrical pipe sleeve, and comprises: an inner sleeve 202, an upper die water-stop pipe 211 and a first liquid inlet connector 201a, wherein the inner sleeve 202 is coaxially arranged in the upper die water-stop pipe 211, an upper mold cooling cavity 206 is formed at the bottom of the upper mold riser 211, the upper mold cooling cavity 206 realizes cooling and shaping of the bottom of the bottle cap 10, the upper end of the inner sleeve 202 extends to one end of the fixed mounting part 1, and a first liquid inlet joint 201a is connected with a first liquid inlet 201 at the upper end of the first liquid inlet joint, the inner tube 202 is formed with a first inlet flow path 202a at the axial center thereof, the first inlet flow path 202a extends from the joint to the upper mold cooling chamber 206, a first liquid return flow passage 202b is formed between the inner wall of the upper mold riser 211 and the outer wall of the inner sleeve 202, the upper end of the upper water-separating sleeve is connected with the fixed mounting part 1, and the fixed mounting part 1 is further provided with a first liquid return port 101 communicated with the first liquid return channel 202 b.

Referring to fig. 2, 3, 4 and 7, the second water transport assembly is disposed along a circumferential direction of the first water transport assembly, and includes: a water dividing sleeve 210, a threaded core outer sleeve 208 and a threaded core inner sleeve 207; the water distribution sleeve 210 is sleeved on the upper portion of the upper die water-stop casing 211, a second liquid inlet flow channel 210c and a second liquid return flow channel 210d are arranged in the wall body of the water distribution sleeve 210, the upper end portion of the thread core jacket 208 is matched with the lower end portion of the upper die water-stop casing 211, a liquid inlet drainage flow channel 208a and a liquid return drainage flow channel 208b which are communicated with the second liquid inlet flow channel 210c and the second liquid return flow channel 210d are respectively arranged in the wall body of the thread core jacket 208, the lower end portion of the thread core jacket 208 extends downwards to the bottom of the upper die water-stop casing 211, the thread core jacket 208 is provided with a thread groove 213 in the circumferential direction of the outer wall close to the bottom of the upper die water-stop casing 211, the thread core inner sleeve 207 is sleeved on the bottom of the upper die water-stop casing 211 and is positioned between the thread core jacket 208 and the upper die water, the upper end portion of the threaded core inner sleeve 207 is in threaded connection with the inner wall of the threaded core outer sleeve 208, a core cooling flow channel 212 for cooling and shaping the threaded side wall of the bottle cap 10 is formed between the outer side wall of the threaded core inner sleeve 207 and the inner side wall of the threaded core outer sleeve 208 corresponding to the threaded groove 213, the core cooling flow channel 212 includes a diversion cavity 207a, a backflow cavity 207e and an upper mold liquid collecting flow channel 207c, the liquid inlet drainage flow channel 208a and the liquid return drainage flow channel 208b are respectively communicated with the diversion cavity 207a and the backflow cavity 207e, the diversion cavity 207a is communicated with the upper mold liquid collecting flow channel 207c along a predetermined number of upper mold diversion grooves 207b formed on the outer side wall of the threaded core inner sleeve 207, and the upper mold liquid collecting flow channel 207c rotates one circle along the circumferential direction of the outer side wall of the threaded core 207 and passes through a predetermined number of upper mold backflow grooves 207d and upper mold backflow grooves 207d formed on the outer side wall of the threaded The return chambers 207e communicate.

Further, a second liquid inlet joint 210a and a second liquid return joint 210b are respectively mounted on a second liquid inlet 210e and a second liquid return port 210f of the upper end of the water dividing sleeve 210 corresponding to the second liquid inlet flow channel 210c and the second liquid return flow channel 210 d.

Further, a first spring 209 is provided at a position where the upper end of the threaded core housing 208 is engaged with the water distribution sleeve 210, for supporting and cushioning the threaded core housing 208. A second spring 204 is arranged between the water distributing sleeve 210 and the cylindrical sleeve, and the second spring 204 is arranged at one end close to the fixed part and used for supporting and buffering the water distributing sleeve 210, providing forming pressure and restoring the upper die after the die is opened.

Referring to fig. 3 and 5, the third water transport assembly is disposed in the die holder 304, and includes: a lower die water-separating sleeve 301, a lower die pressing sleeve 303 and a lower die cavity sleeve 307, wherein the lower die cavity sleeve 307 is positioned above the die holder 304, a second lower mold cooling cavity 305 is formed at the upper end of the mold base 304 and at the outer bottom of the lower mold cavity, a third liquid inlet channel 304a communicated with the second lower mold cooling cavity 305 is formed in the middle of the mold base 304, a third liquid inlet 304b is arranged at one end of the third cooling flow channel far away from the second lower mold cooling cavity 305, the lower mold water-insulating sleeve 301 is arranged along the circumferential direction of the lower mold cavity sleeve 307, a spiral water conveying flow passage 306 is formed with the outer side wall of the lower die cavity sleeve 307, the lower die pressing sleeve 303 is arranged at the outer side of the die holder 304, a third liquid return flow passage 302 is formed between the lower die pressing sleeve 303 and the lower die water-separating sleeve 301, one end of the spiral water delivery channel 306 is communicated with the second lower mold cooling cavity 305, and the other end is communicated with the third liquid return channel 302.

With reference again to fig. 6, the second lower mold cooling chamber 305 comprises: a predetermined number of lower mold runners 305a extending circumferentially along the center of the bottom of the lower mold cavity housing 307 and a lower mold liquid collecting runner 305b arranged at the bottom of the lower mold cavity housing 307 and rotating circumferentially for one turn; the water is transported in a mode of dispersing all around through the lower die diversion channel 305a, and then the water enters the thread water transporting channel along the lower die liquid collecting channel 305b in a circle, the thread water transporting channel 306 circulates in a single direction around the thread side wall of the bottle cap 10 in a circle and then flows into the third liquid returning channel 302, the water transporting mode adopts a single-direction flow, the problem of uneven flow rate and flow is avoided, the strength of parts is improved, and the cooling effect and the cooling efficiency are improved; and moreover, the cooling area of the cooling water in the lower die liquid collecting channel 305b is ensured to be extended to the highest position of the thread side wall of the bottle cap 10, and the cooling efficiency is obviously improved due to the unidirectional rotation flowing area.

Referring to fig. 2 and 3, the ejection module includes: the air flow auxiliary ejection structure is used for assisting in blowing out the bottle cap 10, and comprises an air inlet 4 and an air flow channel entering the mold cavity (not shown) along the air inlet, wherein the air inlet 4 is formed in the top end of the water distribution sleeve 210, the air flow channel extends downwards along the wall body of the water distribution sleeve 210 to the outer wall of the water distribution sleeve 210, then the air flow channel sequentially enters the gap between the outer wall of the water distribution sleeve 210 and the inner wall of the outer sleeve 205a to the gap between the outer wall of the threaded core outer sleeve 208 and the inner wall of the inner sleeve 205b, and finally the air flow channel is connected into the mold cavity (not shown), so that auxiliary blowing out of the bottle cap 10 is realized.

With reference to the accompanying drawings, the present embodiment implements the water cooling operation as follows:

water transport of the first water transport assembly: the low-temperature cooling water enters the upper die cooling cavity 206 from the first liquid inlet joint 201a along the first liquid inlet flow channel 202a to realize cooling and shaping of the bottom of the bottle cap 10, and the low-temperature cooling water after heat exchange becomes warming cooling water and then flows out from the first liquid return port 101 along the first liquid return flow channel 202 b. Therefore, the first water conveying assembly conveys cooling water through a pipe sleeve pipe type, the convection of low-temperature cooling water in the first liquid inlet flow channel 202a and warming cooling water in the first liquid return flow channel 202b is formed structurally by the design while the cooling effect is ensured, and then the function of mutual heat exchange is realized, so that the warming cooling water circulating back along the first liquid return flow channel 202b is properly cooled, the first water conveying assembly reduces the work of external equipment on the temperature reduction of the warming cooling water while the cooling effect is ensured, the energy consumption is reduced, and the production cost is reduced.

And the low-temperature cooling water enters the core cooling runner 212 from the second liquid inlet joint 210a along the second liquid inlet runner 210c, and is realized in the core cooling runner 212 in such a way that the low-temperature cooling water firstly enters the diversion cavity 207a, is directly communicated to the upper die liquid collecting runner 207c along the upper die diversion groove 207b in a predetermined part, and then enters the backflow cavity 207e through the upper die backflow groove 207d arranged oppositely along the upper die liquid collecting runner 207c in a one-way rotation circle, so that the cooling and shaping of the thread side wall of the bottle cap 10 are realized, and meanwhile, the low-temperature cooling water is converted into warming cooling water and finally enters the backflow diversion runner 208b to flow out along the second liquid return joint 210 b. The water transporting mode of the second water transporting assembly adopts one-way flow, so that the problems of uneven flow speed and uneven flow are avoided, the strength of parts is increased, and the cooling effect and the cooling efficiency are improved.

The third water transporting assembly: the low-temperature cooling water enters the second lower die cooling cavity 305 from the third liquid inlet 304b along the third liquid inlet runner 304a, the low-temperature cooling water is dispersedly cooled around the second lower die cooling cavity 305 by the lower die diversion channel 305a to realize cooling and shaping of the bottom of the bottle cap 10, and then the low-temperature cooling water enters the thread water conveying runner along the lower die liquid collection runner 305b of the lower die cavity by rotating for one circle to realize cooling and shaping of the thread side wall of the bottle cap 10, and simultaneously the low-temperature cooling water is converted into temperature-rising cooling water and finally flows out through the third liquid return runner 302. The third water transporting assembly adopts a water transporting mode of unidirectional flow, so that the problems of uneven flow speed and uneven flow are avoided, the strength of parts is improved, and the cooling effect and the cooling efficiency are improved; and moreover, the cooling area of the cooling water in the lower die liquid collecting channel 305b is ensured to be extended to the highest position of the thread side wall of the bottle cap 10, and the cooling efficiency is obviously improved due to the unidirectional rotation flowing area.

The above description is only for the specific embodiments of the present invention, but it should be understood by those skilled in the art that the present invention is only by way of example, and the scope of the present invention is defined by the appended claims. Therefore, the equivalent changes made in the claims of the present invention still belong to the scope covered by the present invention.

Claims (7)

1. A multi-channel water-cooled cap-making mold for use in the preparation of a bottle cap comprising a base and a threaded sidewall formed circumferentially around said base; the multi-runner water-cooling cover making mold comprises: an go up mould and lower mould, go up the mould profile of mould and the cooperation of the lower model face of lower mould forms a die cavity that is used for the shaping bottle lid, go up the mould and still include:

the upper die body comprises a cylindrical pipe sleeve and a fixed mounting piece, and the fixed mounting piece is mounted at the upper end of the cylindrical pipe sleeve;

the cooling module is used for cooling and shaping the bottle cap in the mold cavity; and

the ejection module comprises an airflow auxiliary ejection structure and is used for assisting to blow out the bottle cap; characterized in that the cooling module comprises:

a first water transport assembly disposed at the axis of the cylindrical pipe sleeve, comprising: the upper die water-stop sleeve comprises an upper die water-stop sleeve and a connector, wherein the inner sleeve is coaxially arranged in the upper die water-stop sleeve, an upper die cooling cavity is formed at the bottom of the upper die water-stop sleeve, the upper end of the inner sleeve extends to one end of the fixed mounting part and is connected with the connector, a first liquid inlet flow channel is formed in the axis of the inner sleeve, the first liquid inlet flow channel extends to the upper die cooling cavity from the connector, a first liquid return flow channel is formed on the inner wall of the upper die water-stop sleeve and the outer wall of the inner sleeve, the upper end of the upper die water-stop sleeve is connected with the fixed mounting part, and a first liquid return opening communicated with the first liquid return flow channel is further formed in the fixed mounting part; and

a second fortune water subassembly, set up in the circumference of first fortune water subassembly, it includes: a water dividing sleeve, a threaded core outer sleeve and a threaded core inner sleeve; the water dividing sleeve is sleeved on the upper portion of the upper die water-stop casing, a second liquid inlet flow channel and a second liquid return flow channel are arranged in the wall body of the water dividing sleeve, the upper end portion of the thread core jacket is matched with the lower end portion of the upper die water-stop casing, a liquid inlet flow channel and a liquid return flow channel which are communicated with the second liquid inlet flow channel and the second liquid return flow channel are respectively arranged in the wall body of the thread core jacket, the lower end portion of the thread core jacket extends downwards to the bottom of the upper die water-stop casing, a thread groove is arranged on the outer wall of the thread core jacket in the circumferential direction close to the bottom of the upper die water-stop casing, the thread core jacket is sleeved on the bottom of the upper die water-stop casing and is positioned between the thread core jacket and the upper die water-stop casing, the upper end portion of the thread core jacket is connected with the inner wall, and the outer side wall of the threaded core inner sleeve corresponds to the inner side wall of the threaded core outer sleeve, a core cooling flow channel for bottle cap cooling and shaping of the threaded side wall is formed at the position of the threaded groove, the core cooling flow channel comprises a diversion cavity, a backflow cavity and an upper die liquid collecting flow channel, the liquid inlet drainage flow channel and the backflow drainage flow channel are respectively communicated with the diversion cavity and the backflow cavity, the diversion cavity is communicated with the upper die liquid collecting flow channel through a preset number of upper die diversion grooves formed in the outer side wall of the threaded core inner sleeve, and the upper die liquid collecting flow channel is communicated with the backflow cavity through a preset number of upper die backflow grooves formed in the outer side wall of the threaded core inner sleeve in a circumferential rotating circle.

2. The multi-runner, water-cooled lid-making mold of claim 1, wherein the lower mold comprises: the third water transporting assembly is arranged in the die holder and comprises a lower die water-separating sleeve, a lower die pressing sleeve and a lower die cavity sleeve, the lower die cavity sleeve is positioned above the die holder, a lower die cooling cavity is formed at the upper end of the die holder and at the outer bottom of the lower die cavity, a third liquid inlet channel communicated with the lower die cooling cavity is formed in the middle of the die holder, the lower die water-separating sleeve is circumferentially arranged along the lower die cavity sleeve and is formed with a spiral water transporting channel with the outer side wall of the lower die cavity sleeve, the lower die pressing sleeve is arranged on the outer side of the die holder and is formed with a third liquid return channel with the lower die water-separating sleeve, one end of the spiral water transporting channel is communicated with the lower die cooling cavity, and the other end of the spiral water transporting channel is communicated with the third liquid return channel.

3. The multi-runner, water-cooled, lid-making mold of claim 2, wherein the lower mold cooling cavity comprises: the lower die cavity sleeve comprises a predetermined number of lower die diversion grooves extending along the center of the bottom of the lower die cavity sleeve to the periphery and a lower die liquid collection flow channel arranged at the bottom of the lower die cavity sleeve and rotating for one circle in the circumferential direction.

4. The multi-runner, water-cooled, cap-making mold of claim 1, wherein an upper end of said threaded core inner sleeve is threadably connected to an inner wall of said threaded core outer sleeve.

5. The multi-runner water-cooled lid making mold according to claim 1, wherein a first spring is sleeved at a position where the upper end of the threaded core outer sleeve is matched with the water distribution sleeve.

6. The multi-runner water-cooled lid-making mold as claimed in claim 1, wherein a second spring is provided between the water dividing sleeve and the cylindrical pipe sleeve.

7. The multi-runner, water-cooled lid-making mold of claim 1, wherein the cylindrical sleeve is attached to the fixed mounting member by screws.

Images