CN114211692B - Injection molding machine and injection molding process thereof - Google Patents
Injection molding machine and injection molding process thereof Download PDFInfo
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- CN114211692B CN114211692B CN202111557749.2A CN202111557749A CN114211692B CN 114211692 B CN114211692 B CN 114211692B CN 202111557749 A CN202111557749 A CN 202111557749A CN 114211692 B CN114211692 B CN 114211692B
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- injection molding
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- charging barrel
- injection
- limiting
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 111
- 239000004033 plastic Substances 0.000 claims abstract description 65
- 229920003023 plastic Polymers 0.000 claims abstract description 65
- 239000007921 spray Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims description 51
- 238000002347 injection Methods 0.000 claims description 45
- 239000007924 injection Substances 0.000 claims description 45
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 5
- 239000002991 molded plastic Substances 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
- B29C45/1755—Means for receiving or discharging purged material; Purge shields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/176—Exchanging the injection unit or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/20—Injection nozzles
- B29C45/22—Multiple nozzle systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/20—Injection nozzles
- B29C45/24—Cleaning equipment
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application relates to an injection molding machine, relates to injection molding machine technical field. The rotary injection molding machine comprises a support, wherein a charging barrel is arranged on the support, a rotary support is arranged on one side of the support, a rotary ring is arranged on the rotary support, the axis of the rotary ring is connected with the rotary support, the rotary ring is rotationally connected with the rotary support, a plurality of fixing rings are arranged on the outer side wall of the rotary ring along the length direction of the charging barrel, injection molding spray heads are inserted in the fixing rings, and the injection molding spray heads are detachably connected with the charging barrel. When the injection molding machine in this application is carrying out the operation of moulding plastics, after the injection molding of a plastic product is accomplished, operating personnel can take off the shower nozzle of moulding plastics, and rotate rotatory ring for the feed cylinder is connected with another shower nozzle of moulding plastics and is moulded plastics, later washs the shower nozzle of moulding plastics that has finished to use so that secondary use, compares in the injection molding machine among the correlation technique, and the injection molding machine in this application has reduced and has moulded plastics the possibility that the shower nozzle after long-term use leads to plastics to pile up, thereby has promoted the quality of product.
Description
Technical Field
The present application relates to the field of injection molding machines, and in particular, to an injection molding machine.
Background
Injection molding machines are the primary molding equipment for producing plastic articles of various shapes from thermoplastic or thermosetting plastics using plastic molding dies.
At present, an injection molding machine comprises a hopper for containing plastic raw materials, wherein the bottom of the hopper is communicated with a charging barrel, and an external heating ring for melting the plastic raw materials is sleeved outside the charging barrel; the inside of the charging barrel is provided with a screw rod for shearing plastic raw materials, the side wall of the charging barrel is provided with a pressurizing pump for pressurizing the raw materials in the charging barrel, an injection molding spray head is arranged at one end of the charging barrel, which is far away from the hopper, and a forming mechanism is arranged at one side of the charging barrel, which is far away from the hopper; when injection molding is needed, an operator opens the motor to enable the screw to rotate, and after the external heating ring heats and melts the plastic raw material, the charging barrel is moved, the injection nozzle abuts against the molding mechanism, and then the booster pump is opened, so that the melted plastic raw material is injected into the molding mechanism, and injection molding is completed.
In the process of realizing the application, the inventor finds that at least the following problems exist in the technology, namely when an injection molding machine in the related technology is used for injection molding, when an injection molding nozzle is used for a long time, the melted plastic raw material is extruded to a forming mechanism from the injection molding nozzle, the external temperature is lower, and further, the plastic raw material is easy to accumulate and solidify at the injection molding nozzle, so that the quality of a product is influenced, and the improvement is needed.
Disclosure of Invention
In order to solve the problem that after an injection molding nozzle of an injection molding machine in the related art is used for a long time, plastic accumulation is easy to occur in the injection molding machine, so that the quality of a product is influenced.
The application provides an injection molding machine adopts following technical scheme:
an injection molding machine comprises a bracket, wherein one side of the bracket is provided with a molding mechanism; the automatic injection molding machine is characterized in that a charging barrel is arranged on the support, a rotating support is arranged on one side of the support, a rotating ring is arranged on the rotating support, the axis of the rotating ring is connected with the rotating support, the rotating ring is rotationally connected with the rotating support, a plurality of fixing rings are arranged on the outer side wall of the rotating ring along the length direction of the charging barrel, injection molding spray heads are inserted into the fixing rings, and the injection molding spray heads are detachably connected with the charging barrel.
Through adopting above-mentioned technical scheme, when the injection molding machine in this application is carrying out the operation of moulding plastics, after accomplishing the injection molding of a plastic products, operating personnel can take off the shower nozzle of moulding plastics, and rotate rotatory ring for the feed cylinder is connected with another shower nozzle of moulding plastics, and the shower nozzle of moulding plastics that has used to end again is washd the back so that secondary use, compares in the injection molding machine among the related art, leads to plastics accumulational possibility after the shower nozzle of moulding plastics has been reduced for a long time used to the injection molding machine in this application, thereby has promoted the quality of product.
Optionally, the mounting groove has been annularly seted up on the one end wall that the feed cylinder is close to the shower nozzle of moulding plastics, the mounting groove inlays on the diapire that the shower nozzle corresponds with moulding plastics and is equipped with fixed magnet, the one end that the shower nozzle of moulding plastics is close to the feed cylinder is provided with the linking magnet, fixed magnet and linking magnet magnetism inhale mutually.
Through adopting above-mentioned technical scheme, fixed magnet and linking magnet's structure can be so that the installation of being convenient for between shower nozzle and the feed cylinder of moulding plastics on the one hand, and on the other hand is through the adsorption of magnetism, even have certain error when moulding plastics shower nozzle and feed cylinder when aligning, also can be through adsorption with its counterpoint absorption, promoted the convenience of operating personnel operation.
Optionally, be provided with the closing cap piece that is used for the capping feed cylinder between the solid fixed ring, the closing cap piece sets up on the lateral wall that the rotatory ring is close to the feed cylinder, the closing cap piece is close to the one end opening laminating setting of rotatory ring with the feed cylinder.
By adopting the technical scheme, the structure of the cover plate ensures that when the rotating ring rotates, the plastic raw materials are melted and have higher density and higher adhesiveness, so that only a smaller amount of plastic raw materials can flow out of the charging barrel, and at the moment, operators can collect a small amount of plastic raw materials and then recycle the plastic raw materials; compared with a structure that the cover plate is not used for directly rotating the rotating ring, the structure of the cover plate reduces the quantity of plastic raw materials which are recycled, and therefore the overall injection molding efficiency of the system is improved.
Optionally, be provided with the stabilizing ring that is used for stabilizing the shower nozzle of moulding plastics on the inside wall of solid fixed ring, be provided with the stopper on the lateral wall of the shower nozzle of moulding plastics, be provided with first gag lever post on the forming mechanism, the one end rotation that the shower nozzle was moulded plastics was kept away from to first gag lever post diapire is connected with the second gag lever post, the second gag lever post sets up with the lateral wall laminating of stopper.
Through adopting above-mentioned technical scheme, the structure of first gag lever post and second gag lever post offsets through the lateral wall of second gag lever post and stopper on the one hand, has promoted the shower nozzle of moulding plastics and has inserted the stability of locating in the stabilizer ring, on the other hand, when the back is accomplished in moulding plastics, when the feed cylinder was rolled back, because the second gag lever post is difficult to rotate towards feed cylinder direction of rolling back, so make the shower nozzle of moulding plastics by the block again in the stabilizer ring to the shower nozzle of moulding plastics after making to be used is convenient for collect.
Optionally, first spacing groove has been seted up in the first gag lever post, be provided with on the diapire of first spacing groove and support tight spring, second spacing groove has been seted up in the second gag lever post, first spacing groove and second spacing groove intercommunication setting, be provided with the elastic rope on the second spacing groove diapire, the elastic rope with support tight spring coupling.
Through adopting above-mentioned technical scheme, support tight spring and elastic cord's structure when making the second gag lever post in the shower nozzle that moulds plastics offset, increased the tight degree of support between second gag lever post and the shower nozzle that moulds plastics to increased the shower nozzle that moulds plastics and set up the stability on the stabilizer ring, and then promoted the feed cylinder and moulded plastics the stability when the shower nozzle assembles.
Optionally, be provided with locking spring on the inner wall that the solid fixed ring is close to the stabilizer ring, the one end that locking spring kept away from the solid fixed ring is provided with the butt piece, locking spring one end is connected with the butt piece, and the other end is connected with the solid fixed ring inner wall that is close to the stabilizer ring, the butt piece offsets with the shower nozzle of moulding plastics, the round guide angle has been seted up to the one end that the shower nozzle of moulding plastics is close to the feed cylinder.
By adopting the technical scheme, when the injection molding spray head is arranged in the stabilizing ring, the locking spring can be used for propping the propping block against the side wall of the injection molding spray head, so that the stability of the injection molding spray head arranged on the rotating ring is improved, and the falling risk of the injection molding spray head when an operator rotates the rotating ring is reduced; the structure of the round guide angle enables the charging barrel to slide onto the injection molding spray head on the round guide angle in the process of driving the injection molding spray head to recycle, and compared with a right-angle structure, the structure of the round guide angle reduces the possibility of collision damage between the edge of the injection molding spray head and the abutting block.
Optionally, the fixed ring is close to and has run through the spacing hole of having seted up on the lateral wall of stabilizer ring, it is equipped with spacing sleeve to insert in the spacing hole, spacing sleeve interpolation is equipped with spacing straight-bar, spacing straight-bar and spacing sleeve sliding connection, spacing straight-bar is kept away from spacing telescopic one end and is kept away from the one end of shower nozzle of moulding plastics with the butt piece and be connected.
Through adopting above-mentioned technical scheme, the structure of limit sleeve and spacing straight-bar makes the butt piece in the in-process that takes place to remove on the one hand, and locking spring is difficult for producing excessive distortion at the in-process of compression and extension, has increased the stability of locking spring and butt piece structure, and on the other hand, thereby adopts limit sleeve's structure to reduce spacing straight-bar and solid fixed ring direct contact and makes the possibility that spacing straight-bar was worn and torn, has prolonged the life of spacing straight-bar.
Optionally, a vertical rod is arranged on one side of the bracket, a scraping blade is arranged on the vertical rod, and the scraping blade is attached to the sealing cover piece.
Through adopting above-mentioned technical scheme, when the swivel ring is rotating, there is partly plastics raw materials adhesion on the lateral wall of closing cap piece, and at this moment, the doctor blade can scrape the raw materials that adheres to on the closing cap piece, and then operating personnel will be scraped the raw materials collection back, add to in the hopper again, carry out cyclic utilization to the raw materials, improved the rate of utilization of raw materials.
Optionally, an injection molding process of an injection molding machine comprises S1, raw material injection and processing; s2, assembling an injection molding nozzle; s3, injection molding; s4, backing and disassembling the injection nozzle; s5, replacing the injection nozzle;
s1, injecting and processing raw materials, namely placing plastic raw materials into a hopper by an operator, enabling the raw materials to enter a charging barrel through the hopper, and processing and melting the raw materials in the charging barrel;
s2, assembling an injection molding spray head: after the raw materials are processed, an operator drives the charging barrel to move towards the direction of the forming structure and is assembled and communicated with the injection nozzle through the fixed magnet and the connecting magnet;
s3, injection molding: performing forming operation through the assembled and communicated charging barrel and injection nozzle structure;
s4, backing and disassembling the injection molding nozzle: after injection molding is completed, an operator drives the charging barrel to retract, and the injection nozzle is blocked in the locking ring again under the action of the second limiting rod and the limiting block;
s5, replacing an injection molding nozzle: the operator rotates the swivel ring so that the unused pairs of injection nozzles are rotated to a position opposite the cartridge and the used pairs of injection nozzles are removed from the swivel ring for replacement.
Through adopting above-mentioned technical scheme, the injection molding machine in this application can be through removing the feed cylinder when carrying out the operation of moulding plastics, and through the principle that magnetism is inhaled mutually, with the feed cylinder fixed with the shower nozzle of moulding plastics, accomplish the back of moulding plastics of a plastic product, stopper and second gag lever post's structure can make the shower nozzle of moulding plastics set up again on the swivel ring, and operating personnel can take off the shower nozzle of moulding plastics this moment, and swivel ring for the feed cylinder is connected with another shower nozzle of moulding plastics and is moulded plastics, under the circumstances that has improved product quality, it is comparatively convenient.
Optionally, when the operator rotates the rotating ring in S5, a part of the plastic raw material adheres to the side wall of the cover sheet, and after being scraped by the doctor blade, the scraped raw material is collected and then added into the hopper again.
Through adopting above-mentioned technical scheme, thereby operating personnel can be through adding the raw materials that will be scraped by doctor blade sword in the hopper and realize the reutilization of raw materials, improved the rate of utilization of raw materials in this application.
In summary, the present application includes at least one of the following beneficial effects:
1. when the injection molding machine is used for injection molding operation, after injection molding of one plastic product is completed, an operator can take down the injection molding nozzle and rotate the rotary ring, so that the charging barrel is connected with the other injection molding nozzle for injection molding, and then the injection molding nozzle which is used completely is cleaned for secondary use, compared with the injection molding machine in the related art, the injection molding machine in the application reduces the possibility of plastic accumulation after long-term use of the injection molding nozzle, and therefore the quality of products is improved;
2. the structure of the limiting block and the second limiting rod is adopted, the structure of the first limiting rod and the second limiting rod is propped against the side wall of the limiting block through the second limiting rod, so that the stability of the injection molding spray head inserted into the stabilizing ring is improved, and on the other hand, when the injection molding is finished, the charging barrel is retracted, the injection molding spray head is blocked into the stabilizing ring again because the second limiting rod is difficult to rotate towards the retraction direction of the charging barrel, and the injection molding spray head after being used is convenient to collect;
3. the structure of propping the tight spring and the elastic rope is adopted, and the structure of propping the tight spring and the elastic rope enables the second limiting rod to increase the propping degree between the second limiting rod and the injection molding spray head when the second limiting rod is propped against the injection molding spray head, so that the stability of the injection molding spray head on the stabilizing ring is increased, and the stability of the charging barrel and the injection molding spray head during assembly is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic structural diagram showing a connection relationship between a bracket and a hopper in an embodiment of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
fig. 4 is a schematic structural diagram for showing a connection relationship between an accommodation nozzle and a stopper in the embodiment of the present application;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
FIG. 6 is an enlarged schematic view of portion C of FIG. 4;
in the figure: 1. a bracket; 11. a charging barrel; 12. a hopper; 13. a rotating bracket; 14. a rotating ring; 15. a fixing ring; 16. injection molding a spray head; 161. an injection nozzle; 162. injection molding of the through pipe; 17. a forming mechanism; 2. a mounting groove; 21. a fixed magnet; 22. a connecting magnet; 3. a cover sheet; 4. a stabilizing ring; 41. a limiting block; 42. a first stop lever; 43. a second limit rod; 44. a beam-converging rod; 51. a first limit groove; 52. the second limit groove; 53. a spring is abutted tightly; 54. an elastic rope; 6. a locking spring; 61. an abutment block; 62. round guide angles; 7. a limiting hole; 71. a limit sleeve; 72. limiting straight rods; 8. a vertical rod; 81. a doctor blade; 82. the outer tube is heated.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-6.
The embodiment of the application discloses an injection molding machine. Referring to fig. 1, an injection molding machine comprises a bracket 1, wherein the bracket 1 is vertically arranged, a hopper 12 is installed at the top of the bracket 1, a charging barrel 11 is communicated with the bottom of the hopper 12, the charging barrel 11 is arranged along the horizontal direction, a heating outer pipe 82 is sleeved on the outer side wall of the charging barrel 11, the charging barrel 11 is in sliding connection with the heating outer pipe 82, a cylinder for pushing the charging barrel 11 is installed on one side of the charging barrel 11 through a bolt, and a molding mechanism 17 is installed on one side of the charging barrel 11 away from the cylinder; a rotating bracket 13 is vertically arranged on one side of the bracket 1, a rotating ring 14 is rotatably arranged at the top of the rotating bracket 13 through a rotating shaft, and the rotating direction of the rotating ring 14 is vertical to the rotating bracket 13.
Referring to fig. 1, 2 and 3, a plurality of fixing rings 15 are welded and fixed on the side wall of the rotary ring 14, the fixing rings 15 are uniformly arranged, a cover plate 3 is welded and fixed between the fixing rings 15, the cover plate 3 is in an arc structure, and the cover plate 3 is attached to the opening of the charging barrel 11; the stabilizing ring 4 is welded and fixed on the inner side wall of the top of the fixing ring 15, the injection nozzle 16 is inserted in the stabilizing ring 4, the injection nozzle 16 comprises an injection nozzle 161, a limiting block 41 and an injection through pipe 162, the injection through pipe 162 is inserted in the stabilizing ring 4, a limiting hole 7 is formed in a section of side wall of the fixing ring 15, which is close to the stabilizing ring 4, towards the axis direction of the fixing ring 15 in a penetrating manner, a limiting sleeve 71 is fixed on the inner side wall of the limiting hole 7 in an adhesive manner, and the limiting sleeve 71 is arranged in an adaptive manner with the limiting hole 7; the limiting sleeve 71 is internally provided with a limiting straight rod 72 in a penetrating way, the limiting straight rod 72 is in sliding connection with the limiting sleeve 71, the outside of the limiting straight rod 72 is sleeved with a locking spring 6, one end of the locking spring 6 is fixedly adhered to the inner side wall of the stabilizing ring 4, the other end of the locking spring is fixedly adhered to the abutting block 61, the abutting block 61 is connected with an injection molding through pipe 162, and one end of the injection molding through pipe 162, which is close to the charging barrel 11, is provided with a round guide angle 62.
Referring to fig. 1 and 5, a beam-retracting rod 44 is welded and fixed on the forming mechanism 17 along the horizontal direction, a first limiting rod 42 is welded and fixed on the side wall of the beam-retracting rod 44, which is close to the fixed ring 15, one end of the first limiting rod 42, which is close to the injection molding through pipe 162, is rotationally connected with a second limiting rod 43, and a rotating shaft is arranged at one end, far away from the charging barrel 11, of the contact surface of the first limiting rod 42 and the second limiting rod 43, so that the second limiting rod 43 can be bent towards the direction far away from the charging barrel 11 through the rotating shaft, a first limiting groove 51 is formed in the first limiting rod 42, a second limiting groove 52 is formed in the second limiting rod 43, an abutting spring 53 is fixedly adhered on the inner bottom wall of the first limiting groove 51, an elastic rope 54 is fixedly adhered on the inner bottom wall of the second limiting groove 52, and the elastic rope 54 is wound on the abutting spring 53; when the first limiting rod 42 and the second limiting rod 43 are in a vertical state; a gap exists between the second limiting rod 43 and the injection molding through pipe 162.
Referring to fig. 4 and 6, the injection nozzle 161 is integrally formed at one end of the injection through pipe 162 far away from the charging barrel 11, the injection nozzle 161 is communicated with the injection through pipe 162, the limiting block 41 is integrally formed on the side wall of the injection nozzle 161, and the engagement magnet 22 is welded and fixed at one end of the injection through pipe 162 near the charging barrel 11; the mounting groove 2 has been seted up to the one end that feed cylinder 11 is close to the siphunculus 162 of moulding plastics, inlays on the inboard diapire that mounting groove 2 corresponds with the siphunculus 162 of moulding plastics and is equipped with fixed magnet 21, and fixed magnet 21 attracts mutually with linking magnet 22 magnetism for be convenient for install between injection molding shower nozzle 16 and the feed cylinder 11, and through the absorption effect of magnetism, even injection molding shower nozzle 16 and feed cylinder 11 have certain error when aligning, also can be with its counterpoint absorption through the absorption effect.
Referring to fig. 1, a vertical rod 8 is installed at one side of a bracket 1, a doctor blade 81 is installed on the vertical rod 8, the doctor blade 81 is attached to a capping piece 3, the doctor blade 81 can scrape off raw materials adhered to the capping piece 3, and then an operator collects the scraped raw materials and then re-adds the raw materials into a hopper 12.
The injection molding process of the injection molding machine comprises the following steps: s1, raw material injection and processing; s2, assembling the injection nozzle 16; s3, injection molding; s4, the injection nozzle 16 is retracted and disassembled; s5, replacing the injection nozzle 16;
s1, raw material injection and processing, namely placing plastic raw materials into a hopper 12 by an operator, performing preliminary processing on the raw materials in the hopper 12, entering a charging barrel 11 through the hopper 12, and heating and melting the raw materials in the charging barrel 11 by a heating outer tube;
s2, assembling the injection molding nozzle 16: after the raw materials are processed, an operator opens the air cylinder, drives the charging barrel 11 to move towards the forming structure through the air cylinder, at the moment, the second limiting rod 43 slides on the limiting block 41, when the limiting block 41 passes through the second limiting rod 43, the second limiting rod 43 is recovered to the upper part of the injection molding through pipe 162, and at the moment, the connecting magnet 22 is close to the mounting groove 2 and is connected with the fixed magnet 21;
s3, injection molding: injecting plastic raw materials into a plastic mold through the structure of the assembled and communicated charging barrel 11 and the injection nozzle 16, and performing molding operation;
s4, retreating and disassembling the injection nozzle 16: after injection molding is completed, an operator drives the cylinder to enable the cylinder barrel 11 to retract, at the moment, the fixed magnet 21 and the connecting magnet 22 are separated, a part of unused plastic raw materials flows out of the barrel 11, and at the moment, the operator can collect the flowing raw materials and guide the raw materials into the hopper 12 again; along with the movement of the charging barrel 11, the limiting block 41 is attached to the second limiting rod 43, and the second limiting rod 43 is difficult to rotate towards the direction away from the forming structure, so that the injection nozzle 16 is fixed in the locking ring;
s5, replacing the injection nozzle 16: the operator rotates the rotary ring 14 so that the unused injection nozzle 16 is rotated to a position opposite to the cylinder 11 and the used injection nozzle 16 is removed from the rotary ring 14 to be replaced, and at the same time, the operator collects the plastic raw material adhering to the cover sheet 3 scraped by the doctor blade 81 and performs secondary processing and utilization.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. Injection molding machine, including support (1), be provided with feed cylinder (11) on support (1), support (1) one side is provided with forming mechanism (17), its characterized in that: a rotary support (13) is arranged on one side of the support (1), a rotary ring (14) is arranged on the rotary support (13), the axis of the rotary ring (14) is connected with the rotary support (13), the rotary ring (14) is rotationally connected with the rotary support (13), a plurality of fixing rings (15) are arranged on the outer side wall of the rotary ring (14) along the length direction of the charging barrel (11), injection molding spray heads (16) are respectively inserted in the fixing rings (15), and the injection molding spray heads (16) are detachably connected with the charging barrel (11); an installation groove (2) is annularly formed in the end wall of one end, close to the injection nozzle (16), of the charging barrel (11), a fixed magnet (21) is embedded in the bottom wall, corresponding to the injection nozzle (16), of the installation groove (2), a connecting magnet (22) is arranged at one end, close to the charging barrel (11), of the injection nozzle (16), and the fixed magnet (21) and the connecting magnet (22) are magnetically attracted; a cover piece (3) for covering the charging barrel (11) is arranged between the fixed rings (15), the cover piece (3) is arranged on the side wall of the rotating ring (14) close to the charging barrel (11), and the cover piece (3) is attached to one end opening of the charging barrel (11) close to the rotating ring (14); the injection molding device is characterized in that a stabilizing ring (4) for stabilizing the injection molding spray head (16) is arranged on the inner side wall of the fixing ring (15), a limiting block (41) is arranged on the side wall of the injection molding spray head (16), a beam-converging rod (44) is fixedly welded on the forming mechanism (17) along the horizontal direction, a first limiting rod (42) is fixedly welded on the side wall, close to the fixing ring (15), of the beam-converging rod (44), one end, far away from the injection molding spray head (16), of the bottom wall of the first limiting rod (42) is rotationally connected with a second limiting rod (43), and the second limiting rod (43) is attached to the side wall of the limiting block (41); a first limit groove (51) is formed in the first limit rod (42), a tight supporting spring (53) is arranged on the bottom wall of the first limit groove (51), a second limit groove (52) is formed in the second limit rod (43), the first limit groove (51) is communicated with the second limit groove (52), an elastic rope (54) is arranged on the bottom wall of the second limit groove (52), and the elastic rope (54) is connected with the tight supporting spring (53); one side of the bracket (1) is provided with a vertical rod (8), the vertical rod (8) is provided with a doctor blade (81), and the doctor blade (81) is attached to the sealing cover piece (3).
2. An injection molding machine as claimed in claim 1, wherein: the utility model discloses a fixed ring (15) is provided with locking spring (6) on being close to the inside wall of stabilizing ring (4), the one end that locking spring (6) kept away from fixed ring (15) is provided with butt piece (61), locking spring (6) one end is connected with butt piece (61), and the other end is connected with the inside wall that stabilizing ring (4) is close to with fixed ring (15), butt piece (61) offsets with injection molding shower nozzle (16), injection molding shower nozzle (16) are close to one end of feed cylinder (11) and have been seted up circle guide angle (62).
3. An injection molding machine as claimed in claim 2, wherein: limiting holes (7) are formed in the outer side wall, close to the stabilizing ring (4), of the fixing ring (15) in a penetrating mode, limiting sleeves (71) are arranged in the limiting holes (7) in an inserted mode, limiting straight rods (72) are arranged in the limiting sleeves (71) in an inserted mode, the limiting straight rods (72) are connected with the limiting sleeves (71) in a sliding mode, and one ends, far away from the limiting sleeves (71), of the limiting straight rods (72) are connected with one ends, far away from the injection nozzle (16), of the abutting blocks (61).
4. An injection molding process of an injection molding machine according to any one of claims 1 to 3, characterized in that: s1, raw material injection and processing; s2, assembling an injection nozzle (16); s3, injection molding; s4, retreating and disassembling the injection nozzle (16); s5, replacing the injection nozzle (16);
s1, injecting and processing raw materials, namely placing plastic raw materials into a hopper (12) by an operator, enabling the raw materials to enter a charging barrel (11) through the hopper (12), and processing and melting the raw materials in the charging barrel (11);
s2, assembling an injection molding nozzle (16): after the raw materials are processed, an operator drives the charging barrel (11) to move towards the direction of the forming structure and is assembled and communicated with the injection nozzle (16) through the fixed magnet (21) and the connecting magnet (22);
s3, injection molding: the forming operation is carried out through the structure of the assembled and communicated charging barrel (11) and the injection nozzle (16);
s4, retreating and disassembling the injection molding nozzle (16): after injection molding is completed, an operator drives the charging barrel (11) to retract, and at the moment, the injection nozzle (16) is blocked in the stabilizing ring (4) again under the action of the second limiting rod (43) and the limiting block (41);
s5, replacing the injection molding nozzle (16): the operator rotates the swivel ring (14) such that the unused pairs of injection nozzles (16) are rotated to a position opposite the cartridge (11) and the used pairs of injection nozzles (16) are removed from the swivel ring (14) for replacement.
5. The injection molding process of an injection molding machine according to claim 4, wherein: in S5, when the operator rotates the rotary ring (14), a part of plastic raw material is adhered to the side wall of the cover sheet (3), scraped by the doctor blade (81), and the scraped raw material is collected and added into the hopper (12) again.
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| CN202111557749.2A CN114211692B (en) | 2021-12-20 | 2021-12-20 | Injection molding machine and injection molding process thereof |
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| CN114211692B true CN114211692B (en) | 2023-12-29 |
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|---|---|
| CN114211692A (en) | 2022-03-22 |
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