CN117984505A - Dual-mode switching cold and hot injection molding production method - Google Patents
Dual-mode switching cold and hot injection molding production method Download PDFInfo
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- CN117984505A CN117984505A CN202410322617.9A CN202410322617A CN117984505A CN 117984505 A CN117984505 A CN 117984505A CN 202410322617 A CN202410322617 A CN 202410322617A CN 117984505 A CN117984505 A CN 117984505A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000110 cooling liquid Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 98
- 238000009434 installation Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims 9
- 230000000694 effects Effects 0.000 abstract description 9
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a dual-mode switching cold and hot liquid injection molding production method, which comprises a machine table, wherein an automatic turntable, a turret and at least two injection molding mechanisms are arranged on the machine table; the method comprises the following steps that first, upper dies are arranged at the bottoms of a plurality of injection molding mechanisms, lower dies used for being combined with the upper dies are arranged on an automatic turntable, and movable dies are arranged in the lower dies; the movable mould is connected with the turret, and the turret and the movable mould are internally provided with a first waterway structure and a second water-cooling structure respectively and are connected through a pipeline; secondly, one injection molding mechanism drives the upper die to descend and the lower die to be clamped and molded, and a primary product is formed in the movable die; thirdly, after the primary product is subjected to injection molding, driving the movable mould to be switched to the lower part of another injection molding mechanism through a turret or an automatic turntable, simultaneously injecting cooling liquid into a waterway structure II through the waterway structure, and refluxing the cooling liquid to the waterway structure I through the waterway structure II, wherein the waterway structure I is connected with external equipment to form circulation, and taking away the temperature of the movable mould to play a cooling effect on the product; the fourth part carries out the compound die injection with the lower mould through another injection molding mechanism, and accomplish the secondary injection molding in the movable mould, movable mould and capstan head fixed connection, consequently, in the in-process that carries out the position switch, the capstan head can keep static relatively with the movable mould, so utilize this principle innovatively set up waterway structure one in the capstan head, be equipped with waterway structure two in the movable mould, thereby together with both through the pipeline, realize the circulation of coolant liquid and take the heat in the movable mould, thereby realize the cooling to the product, innovatively realize the liquid cooling in rotatory injection molding mode, effectively reduce latency, promote production efficiency.
Description
Technical Field
The invention belongs to the field of plastic product production methods, and particularly relates to a dual-mode switching cold and hot injection molding production method.
Background
The double-color injection molding method comprises the steps of firstly molding a part of parts in one mold, then transferring the mold into an injection molding machine with another color for secondary injection molding, and obtaining two extended injection molding parts as finished products;
In the injection molding process, a cooling structure is arranged in the mold, so that the cooling effect on the plastic part is mainly achieved, and based on the double-color or multi-color injection molding process, the mode that a turntable drives the mold to switch positions is adopted at present to realize the switching between different injection molding mechanisms, and the lower mold usually rotates in one direction, so that the lower mold needs to act, the lower mold cannot be connected with an external water cooling device, namely, the cooling effect cannot be achieved on the plastic part, and the mold can be opened only after waiting for a long cooling time, so that the production time of a single product is long.
Disclosure of Invention
The invention aims to provide a dual-mode switching cold and hot injection molding production method for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A dual-mode switching cold and hot injection molding production method comprises a machine, wherein an automatic turntable, a turret and at least two injection molding mechanisms are arranged on the machine;
The method comprises the following steps that first, upper dies are arranged at the bottoms of a plurality of injection molding mechanisms, lower dies used for being combined with the upper dies are arranged on an automatic turntable, and movable dies are arranged in the lower dies; the movable mould is connected with the turret, and the turret and the movable mould are internally provided with a first waterway structure and a second water-cooling structure respectively and are connected through a pipeline;
Secondly, one injection molding mechanism drives the upper die to descend and the lower die to be clamped and molded, and a primary product is formed in the movable die;
Thirdly, after the primary product is subjected to injection molding, driving the movable mould to be switched to the lower part of another injection molding mechanism through a turret or an automatic turntable, simultaneously injecting cooling liquid into a waterway structure II through the waterway structure, and refluxing the cooling liquid to the waterway structure I through the waterway structure II, wherein the waterway structure I is connected with external equipment to form circulation, and taking away the temperature of the movable mould to play a cooling effect on the product;
and the fourth part is used for carrying out die assembly injection molding with the lower die through the other injection molding mechanism, and the secondary injection molding is completed in the movable die.
According to the further technical scheme, in the second step, before one-time injection molding is carried out, high-temperature liquid is injected into the waterway structure II through the waterway structure, and the movable mold is preheated.
According to the technical scheme, in the third step, all lower dies are in a fixed state, the turret drives the movable dies to be switched into different lower dies, after one injection molding is completed, the dies are opened, the turret drives the movable dies to rise and separate from the lower dies, then the movable dies are driven to rotate to positions corresponding to the other lower dies, and then the movable dies are lowered to enter the other lower dies.
In the third step, the automatic turntable drives the lower dies to switch positions, and in the process, the movable die is kept connected with the turret and is kept installed in the lower dies, and when the automatic turntable rotates to drive the lower dies to switch positions, the turret passively follows to rotate.
Further technical scheme, the capstan head includes the fixing base, the fixing base top is equipped with the fixed part, fixed part periphery cover is equipped with bearing one, bearing one is connected with the installation department, the installation department is connected with rotating device, is located the fixing base below and installs elevating gear, elevating gear runs through the fixing base and is connected with the fixed part.
According to a further technical scheme, the fixing part comprises a water conveying inner sleeve, a water conveying outer sleeve is rotationally connected to the outer side of the water conveying inner sleeve, the water conveying outer sleeve is connected with the mounting part, a water outlet channel and a water return channel are arranged between the water conveying outer sleeve and the water conveying inner sleeve, a first water inlet and a first water outlet which are communicated with the water outlet channel and the water return channel are respectively arranged on the inner side of the water conveying inner sleeve, and the first water inlet and the first water outlet are respectively connected with a pipeline;
The outer side of the water conveying jacket is provided with at least one group of a second water outlet and a second water inlet which are communicated with the water outlet channel and the water return channel, and the second water outlet and the second water inlet are connected with the movable mould through a guide pipe.
According to a further technical scheme, the rotating device comprises a driving assembly, a gear is mounted at the output end of the driving assembly, the gear is meshed with a gear ring, and the gear ring is mounted on the inner side of the mounting portion.
Further technical scheme, drive assembly is including the driving motor that is located the fixing base below, driving motor passes through drive assembly and is connected with the pivot, the pivot runs through fixing base and fixed part and extends to the installation department inboard and be connected with the gear.
Further technical scheme, injection molding mechanism includes the subassembly of moulding plastics, the mount pad is installed to the subassembly below of moulding plastics, set firmly a plurality of support columns one and a support column two on the mount pad, a plurality of support column one directly passes the board and is connected with the pneumatic cylinder, all be equipped with corresponding through-hole one and through-hole two on fixing base and the fixed part, support column two runs through the capstan head and extends to the board below and be connected with the pneumatic cylinder.
Further technical scheme, install locating component on the fixed part, locating component can block into in the installation department, locating component includes the locating cylinder, the locating pin is installed to the locating cylinder output, is located the installation department inboard and is equipped with a plurality of locating holes, the locating pin can be arranged in the locating hole.
According to a further technical scheme, the telescopic sleeve is arranged on the fixing portion, and the other end of the telescopic sleeve is connected with the fixing base.
According to a further technical scheme, a second bearing is arranged on the periphery of the fixing seat and is connected with the automatic turntable.
The invention has the beneficial effects that:
According to the invention, the movable mould is fixedly connected with the turret, so that the turret can keep relative static with the movable mould in the process of position switching, a first waterway structure is innovatively arranged in the turret by utilizing the principle, a second waterway structure is arranged in the movable mould, and the first waterway structure and the second waterway structure are connected together through a pipeline, so that the circulation of cooling liquid is realized, and heat in the movable mould is brought away, thereby realizing cooling of products, realizing liquid cooling innovatively in a rotary injection mode, effectively reducing waiting time and improving production efficiency.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
Fig. 1: the whole three-dimensional structure diagram of the equipment is I.
Fig. 2: the whole three-dimensional structure diagram of the equipment is II.
Fig. 3: the automatic turntable and turret three-dimensional structure diagram I of the invention.
Fig. 4: the automatic turntable and turret three-dimensional structure diagram II of the invention.
Fig. 5: the turret of the present invention is a three-dimensional structure diagram I.
Fig. 6: the turret three-dimensional structure diagram II of the invention.
Fig. 7 is a perspective cross-sectional view of the turret of the present invention.
Fig. 8: the turret of the present invention is a disassembled view.
Fig. 9: the invention relates to an automatic turntable and turret perspective sectional view.
Fig. 10: the invention relates to an explosion diagram of a fixing part and a mounting part.
Fig. 11: the fixing part section structure diagram of the invention.
Fig. 12: the water carrying jacket is connected with the movable mould in a schematic way.
Reference numerals: the device comprises an 11-machine table, a 12-automatic turntable, a 2-injection molding mechanism, a 21-injection molding assembly, a 22-mounting seat, a 23-support column I, a 24-support column II, a 25-hydraulic cylinder, a 3-turret, a 31-fixing seat, a 32-bearing II, a 33-through hole I, a 41-fixing part, a 411-water conveying inner sleeve, a 412-water conveying outer sleeve, a 413-water outlet channel, a 414-water return channel, a 415-water inlet I, a 416-water outlet I, a 417-water outlet II, a 418-water inlet II, a 42-bearing I, a 43-mounting part, a 44-through hole II, a 5-lifting device, a 6-rotating device, a 61-driving motor, a 62-driving assembly, a 63-rotating shaft, a 64-gear, a 65-gear ring, a 66-bearing assembly I, a 67-bearing assembly II, a 71-moving die, a 72-upper die, a 73-lower die, an 8-positioning assembly, a 81-positioning cylinder, an 82-positioning pin, a 83-positioning hole and a 9-telescopic sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Please refer to fig. 1-12;
the invention provides a dual-mode switching cold and hot injection molding production method, which aims to realize that products can be cooled in the process of multiple injection molding and shorten the production time; the automatic rotary table comprises a machine table 11, an automatic rotary table 12, a turret 3 and at least two injection molding mechanisms 2, wherein the automatic rotary table 12, the turret 3 and the at least two injection molding mechanisms 2 are arranged on the machine table 11; the number of the injection molding machines can be determined according to the number of injection molding machines required for products, and the present embodiment is described with two injection molding mechanisms 2 due to the same principle.
Embodiment one;
The first step, the bottoms of the injection molding mechanisms 2 are provided with upper dies 72, lower dies 73 used for being combined with the upper dies 72 are arranged on the automatic turntable 12, and movable dies 71 are arranged in the lower dies 73; the movable mould 71 is connected with the turret 3, and the turret 3 and the movable mould 71 are internally provided with a first waterway structure and a second water-cooling structure respectively and are connected through pipelines; it should be noted that the first waterway structure is disposed in the movable mold 71 instead of the injection molding acupoint;
secondly, one injection molding mechanism 2 drives the upper die 72 to descend and the lower die 73 to be clamped and molded, and a primary product is formed in the movable die 71;
Thirdly, after one-time injection molding of the product is completed, the turret 3 or the automatic turntable 12 drives the movable mould 71 to be switched to the lower part of the other injection molding mechanism 2, meanwhile, cooling liquid is injected into the water channel structure II through the water channel structure, and flows back to the water channel structure I through the water channel structure II, and the water channel structure I is connected with external equipment to form circulation, so that the temperature of the movable mould 71 is taken away to have a cooling effect on the product; of course, the first waterway structure should be connected with an external liquid supply device, and the cooling liquid is injected into the waterway structure by the external liquid supply device providing pressure;
The fourth part performs mold clamping injection with the lower mold 73 by the other injection mechanism 2, and the second injection is completed in the movable mold 71.
In the invention, the movable die 71 is fixedly connected with the turret 3, so that the turret 3 can keep relative static with the movable die 71 in the process of position switching, a first waterway structure is innovatively arranged in the turret 3 by utilizing the principle, a second waterway structure is arranged in the movable die 71, and the first waterway structure and the second waterway structure are connected together through a pipeline, so that the circulation of cooling liquid is realized, the heat in the movable die 71 is brought away, the cooling of a product is realized, the liquid cooling is innovatively realized in a rotary injection molding mode, the waiting time is effectively shortened, and the production efficiency is improved.
Further, since the mold needs to be heated before injection molding, and can be produced after reaching a certain temperature, in another embodiment, the liquid supply mode can be used for heating the movable mold besides the effect of cooling the movable mold, that is, hot oil can be injected to heat the movable mold before production.
The present invention is further described with respect to the structure of the turret 3; the lifting device 6 in this embodiment may be a rotating motor, which is installed on the lifting device 5 and is in transmission connection with the installation part 43, at this time, the rotating motor should be connected with the central position of the installation part 43, the support column is eccentrically arranged in the connection of the installation part 41, and the installation part 43 is driven to rotate by the rotating motor, which is of course only one embodiment, but not limited to this;
In the working process, the first injection molding is carried out, wherein one injection molding mechanism 2 drives the upper die 72 and the lower die 73 to carry out die closing injection molding, a primary product is formed in the movable die 71, after the completion, the injection molding mechanism 2 drives the upper die 72 to ascend and separate from the lower die 73, and then the switching structure starts to act;
Firstly, the initial state is that the fixing part 41 and the fixing seat 31 are in a close state, then the lifting device 5 starts to act, the fixing part 41 is lifted up through the lifting device 5, meanwhile, the mounting part 43 is lifted up, the mounting part 43 is connected with the movable mould 71, the movable mould 71 is driven to synchronously lift up when the mounting part 43 is lifted up, so that the movable mould 71 is separated from the lower mould 73, then the rotating device 6 starts to act, the mounting part 43 is driven to rotate through the rotating device 6, the mounting part 43 synchronously drives the movable mould 71 to rotate, after a certain angle, the movable mould 71 corresponds to the other lower mould 73, then the lifting device 5 drives the mounting part 43 to descend, meanwhile, the movable mould 71 descends into the other lower mould 73, and finally the other injection molding machine drives the upper mould 72 to carry out secondary injection molding with the lower mould 73.
Preferably, the automatic turntable 12 should be provided with a gap for the fixing seat 31 to be installed, and since the automatic turntable 12 rotates and the fixing seat 31 is fixed, a second bearing 32 is installed on the periphery of the fixing seat 31, and the second bearing 32 is connected with the automatic turntable 12, so that the automatic turntable 12 rotates more smoothly, and it should be noted that the bottom of the fixing seat 31 can be connected with the machine 11 by means of a bracket, so as to realize further position fixation.
In the embodiment, the movable mold 71 is cooled by adopting an external liquid supply mode, so that independent cooling circulation is formed, and the cooling effect is improved; the second waterway structure in the movable mold 71 is a channel formed in the metal, and has an outlet and an inlet which are respectively connected with a pipeline, the first waterway structure in the turret 3 is arranged in the fixed portion 41, and comprises a water carrying inner sleeve 411, the water carrying outer sleeve 412 is rotationally connected with the water carrying outer sleeve 411, and the water carrying outer sleeve 412 is connected with the mounting portion 43, so that the water carrying outer sleeve 412 can rotate along with the mounting portion 43, a water outlet channel 413 and a water return channel 414 are arranged between the water carrying outer sleeve 412 and the water carrying inner sleeve 411, the water carrying outer sleeve 412 is fixed relative to the water carrying inner sleeve 411, a sealing ring is arranged between the water outlet channel 413 and the water return channel 414, the water carrying outer sleeve 412 and the water carrying inner sleeve 411 are prevented from leaking by the sealing ring, a certain friction force can be generated due to the arrangement of the sealing ring in the rotation process, the rotation device 6 can overcome the rotation of the mounting portion 43, in addition, the aging phenomenon of the sealing ring can be overcome due to the fact that the sealing ring can not normally be replaced by the aging phenomenon, and the aging phenomenon can be normally overcome due to the long-time use.
The inner side of the water carrying inner sleeve 411 is respectively provided with a first water inlet 415 and a first water outlet 416 which are communicated with the water outlet passage 413 and the water return passage 414, and the first water inlet 415 and the first water outlet 416 are respectively connected with a pipeline; the outer side of the water conveying jacket 412 is provided with at least one group of a second water outlet 417 and a second water inlet 418 which are communicated with the water outlet passage 413 and the water return passage 414, and the number of the second water outlet 417 and the second water inlet 418 can be determined according to the number of the connecting movable dies 71; the second water outlet 417 and the second water inlet 418 are connected with the movable die 71 through a conduit.
During operation, liquid is injected into the water outlet channel 413 through the first water inlet 415, flows out of the second water outlet 417, is connected with the movable mould 71 through the guide pipe, and is naturally provided with a water channel in the movable mould 71, the liquid flows into the water channel to carry away the heat of the movable mould 71, then flows into the other guide pipe of the outflow channel, enters the water return channel 414 from the second water inlet 418, flows out of the first water outlet 416 again, and circulates through the structure;
With this embodiment, the cooling system is not stopped in the injection molding or the switching of the position of the movable mold 71, and the cooling effect is maintained at all times, thereby improving the injection molding quality.
Based on the above-mentioned liquid cooling process, in another embodiment, before carrying out the primary injection molding, inject the high temperature liquid to the waterway structure two through the waterway structure, preheat the movable mould, concrete liquid injection mode is the same with above-mentioned embodiment, wait for the time of mould through preheating mode can be shortened, promote production efficiency, after accomplishing preheating, can switch the liquid of injection, change the high temperature liquid into the coolant liquid, cool down the movable mould.
In the embodiment of the invention, the positioning component 8 is installed on the fixing portion 41, the positioning component 8 can be clamped into the installation portion 43 to perform limiting fixation, more specifically, the positioning component 8 comprises a positioning cylinder 81, the output end of the positioning cylinder 81 is provided with a positioning pin 82, a plurality of positioning holes 83 are formed in the inner side of the installation portion 43, the positioning pin 82 can be placed in the positioning holes 83, the positioning holes 83 respectively correspond to the positions of the plurality of lower dies 73, and before the fixing portion 41 and the installation portion 43 descend, the positioning component 8 is clamped and fixed, so that deviation is avoided when the movable die 71 enters the lower dies 73.
In the embodiment of the present invention, since a gap is formed between the fixing portion 41 and the fixing base 31 when the fixing portion 41 is lifted, impurities such as dust are easy to enter at this time, the telescopic tube 9 is mounted on the fixing portion 41, the other end of the telescopic tube 9 is connected to the fixing base 31, and the gap is surrounded by the telescopic tube 9 to be shielded.
The invention relates to one embodiment of an injection molding mechanism 2, which specifically comprises an injection molding assembly 21, wherein a mounting seat 22 is arranged below the injection molding assembly 21, a plurality of first support columns 23 and a plurality of second support columns 24 are fixedly arranged on the mounting seat 22, and because the number of parts of a turret 3 is large, the first support columns 23 and the second support columns 24 can avoid the turret 3 and directly pass through a machine table 11 to be connected with an oil cylinder, so that the injection molding mechanism 2 occupies a very large space of the machine table 11;
Further, the fixing seat 31 and the fixing portion 41 are respectively provided with a corresponding first through hole 33 and a corresponding second through hole 44 for the support column 24 to pass through; in this embodiment, the lifting device 5 not only can drive the fixing portion 41 to move up and down, but also plays a role in supporting the fixing portion 41 when more important, wherein the lifting device 5 is a combination of a plurality of oil cylinders and support columns, the oil cylinders are installed below the fixing seat 31, and the fixing portion 41 is supported by the support columns; when there are several injection molding mechanisms 2, the second support columns 24 also have several numbers, and the number of corresponding first through holes 33 and second through holes 44 also changes, and since each second support column 24 passes through the first through holes 33 and the second through holes 44, respectively, the fixing base 31 and the fixing portion 41 are fixed.
In the second embodiment, this embodiment is further extended on the basis of the first embodiment;
Based on the implementation mode of the first waterway structure and the second waterway structure, the water cooling and cooling can be performed not only in the transfer process of the movable mould 71, but also the first waterway structure can inject cooling liquid into the second waterway structure in the injection molding process, so that the movable mould 71 can be cooled in the injection molding process, and the cooling time is further shortened.
Embodiment III, this embodiment is further described in embodiment I;
In the third step, the automatic turntable 12 drives the lower dies 73 to switch positions, and in the process, the movable die 71 is kept connected with the turret 3 and is kept installed in the lower dies 73, and when the automatic turntable 12 rotates to drive the lower dies 73 to switch positions, the turret 3 passively rotates.
The present invention is directed to one of the embodiments of the rotating device 6, specifically including a driving component, the output end of the driving component is provided with a gear 64, the gear 64 is meshed with a gear ring 65, the gear ring 65 is installed on the inner side of the installation portion 43, in this embodiment, the driving component may be installed on the fixed portion 41 and then extends to the installation portion 43 to be meshed with the gear ring 65 through the gear 64, wherein the gear 64 is eccentrically arranged, and at this time, the output end of the lifting device 5 is connected with the central position of the fixed portion 41;
Further, another embodiment of the driving assembly is provided, specifically including a driving motor 61 located below the fixed seat 31, where the driving motor 61 is connected to a rotating shaft 63 through a transmission assembly 62, and the rotating shaft 63 extends through the fixed seat 31 and the fixed portion 41 to the inner side of the mounting portion 43 to be connected to a gear 64; the transmission assembly 62 in this embodiment adopts a combination of a synchronizing wheel and a synchronous belt, wherein one synchronizing wheel is connected with the output end of the driving motor 61, the other synchronizing wheel is rotationally connected with the bottom of the fixed seat 31 through a first bearing assembly 66, in addition, the rotating shaft 63 is connected with the fixed portion 41 through a second bearing assembly 67, the synchronizing wheel can be fixed through the first bearing assembly 66 without being influenced by the ascending and descending of the rotating shaft 63, and the rotating shaft 63 can fix the relative position of the rotating shaft 63 and the fixed portion 41 through the bearing assembly, so that the gear 64 is meshed with the gear ring 65;
When the lifting device 5 works, the fixing part 41 and the mounting part 43 are pushed to rise, the rotating shaft 63 can also rise along with the limitation of the bearing assembly II 67, the relative positions of the rotating shaft 63 and the fixing part 41 and the mounting part 43 are unchanged, the gear ring 65 is meshed with the gear 64, the synchronous wheel is fixedly limited by the bearing assembly I66, the synchronous wheel can slide relatively with the rotating shaft 63, and the synchronous wheel is meshed with the synchronous wheel through a spline under the rotating shaft 63, so that the transmission effect of the synchronous wheel can not be influenced even if the rotating shaft 63 rises, and after the upward action is finished, the driving motor 61 is linked with the transmission assembly 62 to enable the rotating shaft 63 to rotate, and the gear 64 synchronously rotates to drive the gear ring 65 and the mounting part 43 to rotate, so that the aim of driving the movable die 71 to rotate and transpose is achieved.
Based on the above-mentioned mode of using the automatic turntable 12 to drive the lower die 73 to rotate, at this time, the movable die 71 is still fixedly connected with the mounting portion 43, and the mounting portion 43 is further connected with the water-carrying jacket 412, and the mounting portion 43 and the water-carrying jacket 412 still rotate during operation, but are not actively rotated but are driven to rotate by the automatic turntable 12;
More specifically, the lower die 73 is driven to rotate by the rotation of the automatic turntable 12, and the movable die 71 is still located in the lower die 73, so that the lower die 73 drives the mounting portion 43 and the water-carrying jacket 412 to rotate together when driving the movable die 71 to rotate, and the rotating shaft 63 is also rotated by the engagement of the gear 64 located inside with the gear ring 65, but the water-cooling circulation of the movable die 71 can be still realized by any switching mode.
Further, if the cooling is not performed by water cooling, the movable mold 71 does not need to be connected to the turret 3, and the automatic turntable 12 can independently operate to drive the lower mold 73 to rotate for position switching; thus, the turntable does not need to drive the turret 3 to rotate together during the action.
Fourth embodiment, the present embodiment is based on the implementation manner of the first embodiment;
In the third step, all the lower dies 73 are in a fixed state, the turret 3 drives the movable dies 71 to be switched into different lower dies 73, after the injection molding is completed once, the dies are opened, the turret 3 drives the movable dies 71 to rise to be separated from the lower dies 73, then the movable dies 71 are driven to rotate to the positions corresponding to the other lower dies 73, and then the movable dies 71 are lowered to enter the other lower dies 73;
The method can have two use modes, one adopts the automatic turntable 12 to drive the lower die 73 to rotate to switch positions, and the other adopts the turret 3 to drive the movable die 71 to switch positions, and the two modes are realized for users to select by simultaneously arranging the automatic turntable 12 and the turret 3, so that the requirements of different processes of the users can be met without purchasing a plurality of devices, and the cost is effectively saved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the embodiments of the disclosure may be suitably combined to form other embodiments as will be understood by those skilled in the art.
Claims (10)
1. The utility model provides a cold and hot notes liquid production method of moulding plastics of dual mode switching, includes board (11), install automatic carousel (12), capstan head (3) and two at least injection molding mechanism (2) on board (11), its characterized in that:
The method comprises the following steps that firstly, upper dies (72) are arranged at the bottoms of a plurality of injection molding mechanisms (2), lower dies (73) used for being combined with the upper dies (72) are arranged on an automatic rotary table (12), and movable dies (71) are arranged in the lower dies (73); the movable mould (71) is connected with the turret (3), and the turret (3) and the movable mould (71) are internally provided with a first waterway structure and a second water-cooling structure respectively and are connected through a pipeline;
secondly, one injection molding mechanism (2) drives an upper die (72) to descend and a lower die (73) to be clamped and molded, and a primary product is formed in a movable die (71);
Thirdly, after one-time injection molding of the product is finished, the movable mould (71) is driven to be switched to the lower part of the other injection molding mechanism (2) through the turret (3) or the automatic turntable (12), meanwhile, cooling liquid is injected into the water way structure II through the water way structure, and flows back to the water way structure I through the water way structure II, the water way structure I is connected with external equipment to form circulation, and the temperature of the movable mould (71) is carried out to cool the product;
and a fourth part, wherein the other injection mechanism (2) and the lower die (73) are used for carrying out die assembly injection, and the secondary injection is completed in the movable die (71).
2. The dual mode switching cold and hot injection molding production method according to claim 1, wherein: in the second step, before the primary injection molding, high-temperature liquid is injected into the waterway structure II through the waterway structure, and the movable mold is preheated. .
3. The dual mode switching cold and hot injection molding production method according to claim 1, wherein: in the third step, all the lower dies (73) are in a fixed state, the turret (3) drives the movable dies (71) to be switched into different lower dies (73), after one injection molding is completed, the dies are opened, the turret (3) drives the movable dies (71) to ascend and separate from the lower dies (73), then drives the movable dies (71) to rotate to the corresponding positions of the other lower dies (73), and then descends to enable the movable dies (71) to enter the other lower dies (73).
4. The dual mode switching cold and hot injection molding production method according to claim 1, wherein: in the third step, the automatic turntable (12) drives a plurality of lower dies (73) to switch positions, in the process, the movable dies (71) are kept connected with the turret (3) and are kept installed in the lower dies (73), and when the automatic turntable (12) rotates to drive the lower dies (73) to switch positions, the turret (3) passively follows to rotate.
5. The dual-mode switching cold and hot injection molding production method according to any one of claims 1 to 4, wherein: the turret (3) comprises a fixed seat (31), a fixed part (41) is arranged above the fixed seat (31), a first bearing (42) is sleeved on the periphery of the fixed part (41), the first bearing (42) is connected with a mounting part (43), the mounting part (43) is connected with a rotating device (6), a lifting device (5) is arranged below the fixed seat (31), and the lifting device (5) penetrates through the fixed seat (31) to be connected with the fixed part (41).
6. The dual mode switching cold and hot injection molding production method according to claim 5, wherein: the fixing part (41) comprises a water conveying inner sleeve (411), a water conveying outer sleeve (412) is rotationally connected to the outer side of the water conveying inner sleeve (411), the water conveying outer sleeve (412) is connected with the mounting part (43), a water outlet channel (413) and a water return channel (414) are arranged between the water conveying outer sleeve (412) and the water conveying inner sleeve (411), a first water inlet (415) and a first water outlet (416) which are communicated with the water outlet channel (413) and the water return channel (414) are respectively arranged on the inner side of the water conveying inner sleeve (411), and the first water inlet (415) and the first water outlet (416) are respectively connected with a pipeline;
The outer side of the water conveying jacket (412) is provided with at least one group of a second water outlet (417) and a second water inlet (418) which are communicated with the water outlet channel (413) and the water return channel (414), and the second water outlet (417) and the second water inlet (418) are connected with the movable mould (71) through a guide pipe.
7. The dual mode switching cold and hot injection molding production method according to claim 5, wherein: the rotating device (6) comprises a driving assembly, a gear (64) is arranged at the output end of the driving assembly, the gear (64) is meshed with a gear ring (65), and the gear ring (65) is arranged on the inner side of the mounting part (43).
8. The dual mode switching cold and hot injection molding production method according to claim 7, wherein: the driving assembly comprises a driving motor (61) located below the fixing seat (31), the driving motor (61) is connected with a rotating shaft (63) through a transmission assembly (62), and the rotating shaft (63) penetrates through the fixing seat (31) and the fixing portion (41) and extends to the inner side of the mounting portion (43) to be connected with a gear (64).
9. The dual mode switching cold and hot injection molding production method according to claim 5, wherein: injection molding mechanism (2) are including moulding plastics subassembly (21), mount pad (22) are installed to subassembly (21) below of moulding plastics, a plurality of support columns one (23) and a support column two (24) have set firmly on mount pad (22), a plurality of support column one (23) are connected with pneumatic cylinder (25) directly through board (11), all be equipped with corresponding through-hole one (33) and through-hole two (44) on fixing base (31) and fixed part (41), support column two (24) run through capstan head (3) and extend to board (11) below and are connected with pneumatic cylinder (25).
10. The dual mode switching cold and hot injection molding production method according to claim 5, wherein: install locating component (8) on fixed part (41), locating component (8) can block into installation department (43), locating component (8) are including location cylinder (81), locating pin (82) are installed to location cylinder (81) output, are located installation department (43) inboard and are equipped with a plurality of locating holes (83), locating pin (82) can be arranged in locating hole (83).
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