CN116494458B - Plastic packaging box injection molding equipment - Google Patents

Plastic packaging box injection molding equipment Download PDF

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Publication number
CN116494458B
CN116494458B CN202310746753.6A CN202310746753A CN116494458B CN 116494458 B CN116494458 B CN 116494458B CN 202310746753 A CN202310746753 A CN 202310746753A CN 116494458 B CN116494458 B CN 116494458B
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Prior art keywords
feeding
shaft
shell
assembly
assembled
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CN202310746753.6A
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CN116494458A (en
Inventor
吴志刚
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Yantai Kaixiang Plastic Packaging Co ltd
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Yantai Kaixiang Plastic Packaging Co ltd
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Priority to CN202310746753.6A priority Critical patent/CN116494458B/en
Publication of CN116494458A publication Critical patent/CN116494458A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/03Injection moulding apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00Conditioning or physical treatment of the material to be shaped
    • B29B13/10Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/18Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention discloses injection molding equipment for a plastic packaging box, which belongs to the technical field of injection molding and comprises a charging barrel, a crushing assembly and a drying sieve assembly, wherein the crushing assembly comprises a charging shell and a distributing disc, the charging shell is fixedly assembled at one end of a main frame, the top of a rotating member is provided with the distributing disc in a limiting sliding manner, a plurality of distributing holes are arranged on the distributing disc, a scraping blade is also assembled in the charging shell, the drying sieve assembly comprises a drying shell, a rotating shaft and a spiral hole net, the rotating shaft is rotatably assembled in the drying shell, the spiral hole net is circumferentially arranged on the rotating shaft, and the spiral hole net is used for rotationally sieving small particle materials in raw materials and is matched with a hot air blower for air drying.

Description

Plastic packaging box injection molding equipment
Technical Field
The invention belongs to the technical field of injection molding, and particularly relates to injection molding equipment for a plastic packaging box.
Background
The injection mold is a mold used for completing an injection molding process, which is mounted on an injection machine. In general, the injection mold is formed by a forming part, a pouring system, a guiding mechanism, a temperature regulating system and a supporting part, and if the plastic part is provided with a lateral hole or a boss, the injection mold also comprises a lateral parting and core pulling mechanism.
In the injection molding process of plastic packaging boxes, the most common problem is that the plastic parts contain bubbles or cracks, the cracking of the plastic parts can be improved by adjusting the injection film filling speed and the pressure maintaining densification time, the bubbles in the plastic parts are usually generated in a molten state due to overlarge moisture in the raw materials of the plastic parts, and in addition, the bubbles are generated due to the fact that air is mixed in a melting compression section due to uneven material diameters.
Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the invention aims to provide injection molding equipment for plastic packaging boxes so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the injection molding equipment for the plastic packaging box comprises a frame component, wherein the frame component comprises a main frame, a driver, a driving shaft, a sleeve shaft and a sliding shaft, the driver is fixedly assembled on the main frame, one end of the driver is assembled and connected with the driving shaft, one side of the driving shaft is fixedly connected with the sleeve shaft, and the sliding shaft is slidably assembled in the sleeve shaft;
the feed cylinder assembly comprises a feed cylinder, a feed rod, a spiral wall, a feed pushing head and a discharge hole, wherein the feed cylinder is fixedly arranged on the main frame, the feed cylinder is internally provided with the feed rod in a sliding mode, one end of the feed rod is fixedly connected with the sliding shaft, the spiral wall is circumferentially arranged on the feed rod, the feed pushing head is fixedly arranged at the tail end of the feed rod, the discharge hole is arranged at the tail end of the feed cylinder, and the feed pushing head is arranged towards one side of the discharge hole;
the crushing assembly comprises a feeding shell, a rotating member, a push rod, a distributing disc, distributing holes and a transmission gear, wherein the feeding shell is fixedly assembled at one end of a main frame, the rotating member is rotationally assembled in the feeding shell, the distributing disc is assembled at the top of the rotating member in a limiting sliding manner, a plurality of distributing holes are arranged on the distributing disc, a plurality of bases are fixedly assembled in the feeding shell, a plurality of scraping blades are elastically assembled on the bases in a sliding manner, the scraping blades face one side of the distributing disc and are used for crushing bonded raw materials, the transmission gear is also arranged at the top of the feeding shell, and the transmission gear is used for conveying raw materials to be processed into the feeding shell;
the material drying screen assembly comprises a material drying shell, a material rotating shaft, a spiral hole net and an air heater, wherein the material drying shell is fixedly arranged at one end of the feeding shell, the material rotating shaft is rotationally assembled in the material drying shell, the spiral hole net is circumferentially arranged on the material rotating shaft and is used for rotationally screening out small particle materials in the raw materials, and the spiral hole net is matched with the air heater arranged at one end of the material cylinder to perform hot drying and air drying; and
the transmission mechanism is arranged on one side of the driving shaft and connected with the driving shaft in a linkage manner and used for driving the crushed aggregates assembly and the drying sieve assembly to move.
As a further scheme of the invention, the crushing assembly further comprises a push rod, a limiting cylinder and a supporting rod, wherein the push rod is slidably assembled in the rotary member, one end of the push rod is abutted against the material distributing disc, the limiting cylinder is fixedly assembled in the feeding shell, the supporting rod is slidably assembled in the limiting cylinder, one end of the feeding shell is movably abutted against the push rod, and the other end of the feeding shell is in linkage connection with the transmission mechanism.
As a further scheme of the invention, the crushing assembly further comprises a material lifting machine and a suction pipe, wherein the material lifting machine is fixedly assembled at one end of the feeding shell, the suction pipe is communicated with the material lifting machine, and the suction pipe is used for conveying the sucked raw materials into the feeding shell.
As a further scheme of the invention, the material drying screen component further comprises a feeding head, a feeding disc, a material guiding disc, a material discharging column and a slag discharging opening, wherein the feeding head is arranged at one end of a spiral hole net and is used for inputting raw material particles to be dried and screened into the spiral hole net, the feeding disc is further arranged at one end of the spiral hole net, the feeding disc is fixedly connected with a material rotating shaft and is communicated with the feeding head, the material guiding disc is rotatably sleeved at one end of the feeding disc and is fixedly arranged in a material drying shell and is communicated with the material feeding shell, the material discharging column is fixedly assembled at one side of the tail end of the material rotating shaft and is communicated with the spiral hole net, and the slag discharging opening is arranged at the bottom of the material drying shell and is used for discharging screened particles.
As a further scheme of the invention, the material drying screen component further comprises jet nozzles, a material guiding pipe and an inner pipe groove, wherein a plurality of the jet nozzles are circumferentially arranged on the material drying shell in parallel with the material rotating shaft and communicated with the air heater, the material guiding pipe is arranged on one side of the material drying shell, the inner pipe groove is arranged in the material rotating shaft and is arranged near one side of the tail end of the material rotating shaft, the inner pipe groove is communicated with the material discharging column, one end of the material guiding pipe is sleeved on one side of the tail end of the material rotating shaft, and the other end of the material guiding pipe is communicated with the material cylinder.
As a further scheme of the invention, the transmission mechanism comprises a fixed frame, a driven gear, a first driving wheel, a curved rod, a rotating rod and a second driving wheel, wherein the fixed frame is fixedly assembled on one side of the main frame, the driven gear is rotatably assembled on one end of the fixed frame, a driving gear is fixedly assembled on the driving shaft, the driven gear is meshed with the driving gear, one end of the driven gear is fixedly connected with the first driving wheel, one end of the first driving wheel is fixedly connected with the curved rod, the rotating rod is rotatably sleeved on the curved rod, the tail end of the rotating rod is rotatably connected with the abutting rod and used for controlling the reciprocating sliding of the abutting rod, one end of the rotating rod is fixedly connected with the second driving wheel, and the second driving wheel is connected with the rotating shaft in a linkage manner and used for driving the rotating shaft to rotate.
As a further scheme of the invention, the plastic packaging box injection molding equipment further comprises a back pressure assembly, the back pressure assembly comprises a hydraulic pump, a push-pull rod and a shutoff valve, the hydraulic pump is fixedly assembled on the main frame, one end of the hydraulic pump is connected with the sliding shaft through the push-pull rod, and the shutoff valve is further arranged at one end of the hydraulic pump.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the invention, the crushing assembly for crushing the adhesive of the plastic part raw material and the material drying screen assembly for selecting the granularity and drying the humidity are arranged at the front end of the charging barrel, so that the generation of bubbles in plasticized particles in the melt adhesive die cavity can be reduced, the molding quality of the injection molding part is improved, the real-time feeding can be realized, and the raw material preheating treatment is not required.
Drawings
Fig. 1 is a schematic view of an injection molding apparatus for plastic packages according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an injection molding apparatus for plastic packages according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a frame member and a back pressure assembly in an injection molding apparatus for plastic packages according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a cartridge assembly in an injection molding apparatus for plastic package according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a crushing assembly in an injection molding apparatus for plastic packaging boxes according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a baking screen assembly in an injection molding apparatus for plastic package boxes according to an embodiment of the present invention.
Fig. 7 is a schematic perspective view of a tray in an injection molding apparatus for plastic packaging boxes according to an embodiment of the present invention.
Fig. 8 is a schematic perspective view of a spiral mesh in an injection molding apparatus for plastic packaging boxes according to an embodiment of the present invention.
Fig. 9 is a schematic diagram of the working principle of the spiral mesh in the injection molding device for plastic packaging boxes according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a transmission mechanism in an injection molding apparatus for plastic packaging boxes according to an embodiment of the present invention.
Reference numerals: 1-frame component, 101-main frame, 102-driver, 103-drive shaft, 104-sleeve, 105-slide shaft, 106-drive gear, 2-cartridge assembly, 201-cartridge, 202-rod, 203-screw wall, 204-pusher head, 205-discharge port, 206-die, 207-heater chip, 3-particle assembly, 301-feed housing, 302-rotating member, 303-ejector pin, 304-distributor disk, 305-distributor hole, 306-base, 307-wiper blade, 308-guide inclined wall, 309-limiting cartridge, 310-abutting rod, 311-drive gear, 312-material lifter 313-suction pipe, 4-baking material screen assembly, 401-baking material shell, 402-rotary material shaft, 403-spiral hole net, 404-feed head, 405-feed tray, 406-guide tray, 407-discharge column, 408-slag discharge port, 409-air heater, 410-jet nozzle, 411-material guiding pipe, 412-inner pipe groove, 5-driving mechanism, 501-fixing frame, 502-driven gear, 503-first driving wheel, 504-synchronous belt, 505-curved bar, 506-rotary bar, 507-second driving wheel, 6-back pressure assembly, 601-hydraulic pump, 602-push-pull bar, 603-shutoff valve.
Detailed Description
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1-10, an injection molding apparatus for plastic packaging boxes in an embodiment of the present invention includes a frame member 1, where the frame member 1 includes a main frame 101, a driver 102, a driving shaft 103, a sleeve shaft 104, and a sliding shaft 105, the main frame 101 is fixedly equipped with the driver 102, one end of the driver 102 is fixedly connected with the driving shaft 103, one side of the driving shaft 103 is fixedly connected with the sleeve shaft 104, and the sliding shaft 105 is slidably equipped in the sleeve shaft 104; the feed cylinder assembly 2, the feed cylinder assembly 2 comprises a feed cylinder 201, a feed rod 202, a spiral wall 203, a feed pushing head 204 and a discharge opening 205, the feed cylinder 201 is fixedly arranged on the main frame 101, the feed rod 202 is slidably arranged in the feed cylinder 201, one end of the feed rod 202 is fixedly connected with the sliding shaft 105, the spiral wall 203 is circumferentially arranged on the feed rod 202, the feed pushing head 204 is fixedly arranged at the tail end of the feed rod 202, the discharge opening 205 is arranged at the tail end of the feed cylinder 201, and the feed pushing head 204 is arranged towards one side of the discharge opening 205; the crushing assembly 3, the crushing assembly 3 comprises a feeding shell 301, a rotating member 302, a push rod 303, a distributing disc 304, distributing holes 305 and a transmission gear 311, wherein the feeding shell 301 is fixedly assembled at one end of the main frame 101, the rotating member 302 is rotatably assembled in the feeding shell 301, the distributing disc 304 is assembled at the top of the rotating member 302 in a limiting sliding manner, a plurality of distributing holes 305 are arranged on the distributing disc 304, a plurality of bases 306 are fixedly assembled in the feeding shell 301, a plurality of scraping blades 307 are elastically assembled on the bases 306 in a sliding manner, the scraping blades 307 are arranged towards one side of the distributing disc 304 and used for crushing bonded raw materials, the transmission gear 311 is also arranged at the top of the feeding shell 301, and the transmission gear 311 is used for conveying raw materials to be processed into the feeding shell 301; the material drying screen assembly 4, wherein the material drying screen assembly 4 comprises a material drying shell 401, a material rotating shaft 402, a spiral hole net 403 and a hot air blower 409, the material drying shell 401 is fixedly arranged at one end of the feeding shell 301, the material rotating shaft 402 is rotatably assembled in the material drying shell 401, the spiral hole net 403 is circumferentially arranged on the material rotating shaft 402, and the spiral hole net 403 is used for rotationally screening out small particle materials in the raw materials and is matched with the hot air blower 409 arranged at one end of the material cylinder 201 for hot air drying; and the transmission mechanism 5 is arranged on one side of the driving shaft 103 and is connected with the driving shaft 103 in a linkage way, and is used for driving the crushed aggregates assembly 3 and the baking screen assembly 4 to move.
In practical application, when the injection molding machine is used for injection molding of plastic packaging boxes, firstly, raw materials of plastic particles to be processed are lifted and conveyed into a feeding shell 301, a rotating member 302 rotatably assembled in the feeding shell 301 can drive a distributing disc 304 to synchronously rotate so as to enable the plastic particles conveyed into the feeding shell 301 to roll on the rotating member, a scraping blade 307 elastically sliding on a base 306 can push the particles on the distributing disc 304 to roll and simultaneously squeeze and separate bonding particles blocked in a distributing hole 305, so that the granularity of the input plastic particles is kept within a set diameter range, at the moment, the initially screened particles pass through a guiding inclined wall 308 at one end of the feeding shell 301 and then enter a drying shell 401, a rotating shaft 402 is rotatably assembled in the drying shell 401, the input particles can be conveyed to the spiral hole net 403 circumferentially arranged on the material rotating shaft 402 along the material guiding inclined wall 308, the spiral hole net 403 can enable the particles therein to continuously roll along the spiral hole net 403 in the rotating process, the spiral hole net 403 can screen out the particles with the particle size smaller than the mesh diameter in the raw materials, the diameter of the materials finally conveyed to the charging barrel 201 is in a set value, a hot air blower 409 is further arranged at one end of the material drying shell 401, the hot air blower 409 can continuously convey hot air into the material drying shell 401 along the horizontal direction of the material rotating shaft 402 and is in contact with the continuously rolling particles in the material drying shell 401, thereby carrying out hot drying on the raw materials to remove water, enabling the water content of the materials to be smaller than a design value, enabling the particle size and humidity of the materials conveyed to the charging barrel assembly 2 to meet standard values, and preventing bubbles from being generated in a molten state to influence the forming effect of products.
After the raw materials removed by baking and screening are conveyed into the charging barrel 201, the charging rod 202 in the charging barrel 201 continuously rotates under the driving of the sliding shaft 105, so that the materials continuously approach to one end of the discharging opening 205 along the spiral line, the materials are melted into colloid under the heating state of the heating plate 207, and when the sliding shaft 105 is driven to slide at one end of the sleeve shaft 104, the charging rod 202 and the spiral wall 203 can be driven to slide horizontally in the charging barrel 201, and the molten rubber is controlled to be injected into a mold 206 at one side through the discharging opening 205 for cooling molding.
In one case of this embodiment, taking ABS plastic commonly used in injection molding equipment as an example, moisture of 0.2% -0.35% can be absorbed within 24 hours at room temperature, if humidity is greater than 0.2% in an injection molding state, bubbles are easily generated in a molten state, and a conventional method for eliminating bubbles includes raising injection pressure of the injection molding machine and raising back pressure in the barrel 201, while raising injection pressure can reduce bubbles of molten rubber, but at the same time can accelerate condensation of a plastic part, increase internal stress of the plastic part, generate flash and edge overflow, the residual pressure of the mold cavity is large, and increasing back pressure can raise the front melt pressure excessively, so that viscosity is lowered, part of plastic or colorant with poor thermal stability is decomposed, and a series of problems such as casting of molten rubber after injection are caused, so that controlling granularity and humidity of materials before a melting section is an important factor for controlling generation of bubbles in a molten state.
The common injection molding equipment needs to preheat and dry the raw materials in the hopper for 1-2 hours at the temperature of 80-85 ℃ before feeding, and the materials are stacked to cause slow drying speed and also need to be prepared in advance before production operation, so that the synchronous hot drying feeding structure adopted in the embodiment has the advantage of real-time feeding compared with the conventional injection molding feeding equipment.
Referring to fig. 4, in a preferred embodiment of the present invention, the particle assembly 3 further includes a push rod 303, a limiting cylinder 309 and a supporting rod 310, wherein the push rod 303 is slidably mounted in the rotating member 302, one end of the push rod is abutted against the material separating disc 304, the limiting cylinder 309 is fixedly mounted in the feeding housing 301, the supporting rod 310 is slidably mounted therein, one end of the feeding housing 301 is movably abutted against the push rod 303, and the other end is linked with the transmission mechanism 5.
In practical application, the ejector rod 303 is slidably mounted in the rotating member 302, and the bottom of the ejector rod 303 is movably abutted against the abutting rod 310, and the abutting rod 310 can continuously press the ejector rod 303 towards one side of the distributing tray 304 in the process of reciprocating sliding in the limiting cylinder 309, so that the distributing tray 304 drives the particles thereon to press towards one end of the scraping blade 307, and when the scraping blade 307 is elastically pressed on the distributing tray 304, the large-particle-size raw materials blocked in the distributing hole 305 can be sheared and cut by matching with the rotation of the distributing tray 304, and meanwhile, vibration is generated by utilizing the impact effect of the distributing tray 304 and the scraping blade 307, so that the raw materials on the distributing tray can be rapidly screened out.
Referring to fig. 2, in a preferred embodiment of the present invention, the crushing assembly 3 further includes a material lifter 312 and a suction pipe 313, wherein the material lifter 312 is fixedly mounted on one end of the feeding housing 301, and the suction pipe 313 is connected to the material lifter, and the suction pipe 313 is used for conveying the sucked raw material into the feeding housing 301.
In practical application, the material lifting machine 312 may utilize a negative pressure vacuum pump to suck the material at the end of the pipe orifice of the suction pipe 313 into the feeding housing 301 for extrusion and crushing, and the material lifting machine 312 is a device in the prior art, which is not described in detail herein.
Referring to fig. 5 and 7, in a preferred embodiment of the present disclosure, the material drying screen assembly 4 further includes a feeding head 404, a feeding disc 405, a guiding disc 406, a discharging column 407, and a slag discharging port 408, wherein the feeding head 404 is disposed at one end of the spiral hole net 403, and is used for inputting the raw material particles to be dried and screened into the spiral hole net 403, the feeding disc 405 is disposed at one end of the spiral hole net 403, the feeding disc 405 is fixedly connected with the rotation shaft 402, and is in communication with the feeding head 404, the guiding disc 406 is rotatably sleeved at one end of the feeding disc 405, and is fixedly disposed in the material drying housing 401, and is in communication with the feeding housing 301, the discharging column 407 is fixedly mounted at one end side of the rotation shaft 402, and is in communication with the spiral hole net 403, and the slag discharging port 408 is disposed at the bottom of the material drying housing 401, and is used for discharging the screened particles.
In practical application, the feeding disc 405 is fixedly assembled on the rotary shaft 402 and is communicated with the feeding head 404 at one end of the spiral hole net 403, the raw material to be processed can be fed into the spiral hole net 403 along the feeding head 404, the spiral hole net 403 continuously rotates along the circumferential direction of the rotary shaft 402, the material in the spiral hole net can continuously roll under the action of gravity, the dry hot gas input into the drying material shell 401 by the jet nozzle 410 during the rolling process can dry the water on the dry hot gas when contacting with the rolling particles, the particles are in a rolling state, so that the outer surface of the dry hot gas can fully contact with the dry hot gas, and the particles with the particle diameter smaller than the mesh diameter of the spiral hole net 403 can be screened out from the dry hot gas during the rolling process and fall into the slag discharge port 408 below, the residual material can be recovered, and the particles in the spiral hole net 403 continuously roll along the spiral hole net 403 and enter into the discharge column 407.
Referring to fig. 5, in a preferred embodiment of the present invention, the material drying screen assembly 4 further includes a nozzle 410, a material guiding pipe 411 and an inner pipe 412, wherein a plurality of the nozzles 410 are circumferentially arranged on the material drying housing 401 in parallel to the material rotating shaft 402 and are communicated with the air heater 409, the material guiding pipe 411 is arranged on one side of the material drying housing 401, the inner pipe 412 is arranged in the material rotating shaft 402 and is disposed near one side of the end of the material rotating shaft 402, the inner pipe 412 is communicated with the material discharging post 407, one end of the material guiding pipe 411 is sleeved on one side of the end of the material rotating shaft 402, and the other end is communicated with the material cylinder 201.
In practical application, the jet nozzle 410 is circumferentially disposed at one end of the spinning shaft 402 and is disposed parallel to the spinning shaft 402, so that the dry and hot gas can move parallel to the spinning shaft 402 and contact with the particles rolling in the spiral hole net 403, the inner tube slot 412 is communicated with the discharge column 407, the dried particles in the spiral hole net 403 can drop into the inner tube slot 412 along the discharge column 407, and separate from the spinning shaft 402 from one end of the inner tube slot 412, and the particles separated from the spinning shaft 402 enter the barrel 201 along the material guiding tube 411 for melting.
In one case of this embodiment, the torsion angle of the spiral hole net 403 along the rotation axis 402 is 360 °, so that the spiral hole net 403 does not generate an overlapping area in the circumferential direction, and when the hot air blows horizontally, the particulate matter in the spiral hole net 403 on the drying side will not contact with the surface of the spiral hole net 403 again after drying, so as to prevent the hot and humid air flow from repeatedly contacting with the particulate matter.
Referring to fig. 10, in a preferred embodiment of the present invention, the transmission mechanism 5 includes a fixing frame 501, a driven gear 502, a first driving wheel 503, a curved bar 505, a rotating bar 506 and a second driving wheel 507, where the fixing frame 501 is fixedly assembled on one side of the main frame 101, the driven gear 502 is rotatably assembled on one end of the fixing frame 501, a driving gear 106 is fixedly assembled on the driving shaft 103, the driven gear 502 is meshed with the driving gear 106, one end of the driven gear 502 is fixedly connected with the first driving wheel 503, one end of the first driving wheel 503 is fixedly connected with the curved bar 505, the rotating bar 505 is rotatably sleeved with the rotating bar 506, the end of the rotating bar 506 is rotatably connected with the abutting bar 310 for controlling the reciprocating sliding of the abutting bar 310, one end of the rotating bar 506 is fixedly connected with the second driving wheel 507, and the second driving wheel 507 is connected with the rotating shaft 402 for driving the rotating of the rotating shaft 402.
In practical application, the driven gear 502 is rotatably assembled at one end of the fixing frame 501 and is meshed with the driving gear 106 at one end of the driving shaft 103, so that in the process that the driving shaft 103 is driven by the driver 102 to rotate, the driven gear 502 can drive the synchronous belt 504 on the driven gear 502 to rotate through the first driving wheel 503 at one side, and the synchronous belt 504 and the rotating member 302 can be linked and connected through the transmission gear 311, so as to drive the ejector rod 303 to continuously rotate, the curved rod 505 can drive the rotating rod 506 on the curved rod 505 to reciprocally rotate in the rotating process, and the abutting rod 310 at the tail end of the rotating rod 506 is pushed to reciprocally slide in the limiting cylinder 309, and the second driving wheel 507 can drive the rotating shaft 402 to continuously rotate in the rotating process, so that raw materials in the spiral hole net 403 continuously roll.
In one case of the present embodiment, the ejector pin 303 and the spinning shaft 402 are driven by the same driving source as the material bar 202, so that the feeding speed and the melting speed of the melt adhesive are balanced.
Referring to fig. 3, in a preferred embodiment of the present invention, the injection molding apparatus for plastic packaging boxes further includes a back pressure assembly 6, the back pressure assembly 6 includes a hydraulic pump 601, a push-pull rod 602, and a shutoff valve 603, the hydraulic pump 601 is fixedly mounted on the main frame 101, one end of the hydraulic pump 601 is connected to the sliding shaft 105 through the push-pull rod 602, and one end of the hydraulic pump 601 is further provided with the shutoff valve 603.
In practical application, one end of the hydraulic pump 601 is connected to the sliding shaft 105 through the push-pull rod 602, so that after raw materials are introduced into the barrel 201, the raw materials are continuously moved towards the front end of the barrel 201 and gradually form a pressure to push the barrel 202 and the screw wall 203 to move reversely, and therefore the pressure change rate of the hydraulic pump 601 can be adjusted by adjusting the oil drainage speed at one side of the shutoff valve 603, so that the back pressure in the barrel 201 can be conveniently adjusted, and the density and stability of the raw materials can be increased by properly adjusting the back pressure due to different flowability and required pressure of different types of plastics, so that the raw materials in the barrel 201 are sufficiently plasticized, and the mixing uniformity is improved.
In the above embodiment of the invention, an injection molding device for plastic packaging boxes is provided, and the front end of the charging barrel 201 is provided with the crushing assembly 3 for crushing the adhesive of the plastic part raw materials and the drying screen assembly 4 for sorting granularity and drying humidity, so that the generation of bubbles in plasticized particles in a melt adhesive die cavity can be reduced, and the molding quality of injection molding parts can be improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (7)

1. A plastic package injection molding apparatus, the plastic package injection molding apparatus comprising:
the device comprises a frame component (1), wherein the frame component (1) comprises a main frame (101), a driver (102), a driving shaft (103), a sleeve shaft (104) and a sliding shaft (105), the driver (102) is fixedly assembled on the main frame (101), one end of the driver (102) is assembled and connected with the driving shaft (103), one side of the driving shaft (103) is fixedly connected with the sleeve shaft (104), and the sliding shaft (105) is slidingly assembled in the sleeve shaft (104);
the feeding barrel assembly (2), the feeding barrel assembly (2) comprises a feeding barrel (201), a feeding barrel (202), a spiral wall (203), a pushing head (204) and a discharging hole (205), the feeding barrel (201) is fixedly arranged on a main frame (101), the feeding barrel (201) is provided with the feeding barrel (202) in a sliding mode, one end of the feeding barrel (202) is fixedly connected with a sliding shaft (105), the spiral wall (203) is circumferentially arranged on the feeding barrel (202), the pushing head (204) is fixedly arranged at the tail end of the feeding barrel (202), the discharging hole (205) is formed in the tail end of the feeding barrel (201), and the pushing head (204) is arranged towards one side of the discharging hole (205);
the crushing assembly (3), crushing assembly (3) includes feeding casing (301), rotating member (302), ejector pin (303), feed distributing disc (304), feed distributing hole (305) and drive gear (311), feeding casing (301) fixed mounting is in main frame (101) one end, rotating member (302) is equipped with in feeding casing (301), rotating member (302) top spacing slip is equipped with feed distributing disc (304), feed distributing disc (304) are last to have laid a plurality of feed distributing hole (305), still fixed mounting has a plurality of base (306) in feeding casing (301), a plurality of base (306) on elastic sliding be equipped with doctor blade (307), just doctor blade (307) set up towards feed distributing disc (304) one side for broken raw materials of bonding, drive gear (311) have still been laid at feeding casing (301) top, drive gear (311) are arranged in carrying the raw materials that wait to handle in feeding casing (301);
the material drying sieve assembly (4), the material drying sieve assembly (4) comprises a material drying shell (401), a material rotating shaft (402), a spiral hole net (403) and a hot air blower (409), wherein the material drying shell (401) is fixedly arranged at one end of the material feeding shell (301), the material rotating shaft (402) is rotationally assembled in the material drying shell (401), the spiral hole net (403) is circumferentially arranged on the material rotating shaft (402), and the spiral hole net (403) is used for rotationally sieving out small particle materials in raw materials and is matched with the hot air blower (409) arranged at one end of the material cylinder (201) for hot air drying;
the transmission mechanism (5) is arranged on one side of the driving shaft (103) and is connected with the driving shaft (103) in a linkage manner, and the transmission mechanism (5) is used for driving the crushed aggregates assembly (3) and the drying sieve assembly (4) to move.
2. The plastic packaging box injection molding device according to claim 1, wherein the crushed aggregates assembly (3) further comprises a push rod (303), a limiting cylinder (309) and a supporting rod (310), the push rod (303) is slidably assembled in the rotary member (302), one end of the push rod is abutted against the distributing disc (304), the limiting cylinder (309) is fixedly assembled in the feeding shell (301), the supporting rod (310) is slidably assembled in the feeding shell, one end of the feeding shell (301) is movably abutted against the push rod (303), and the other end of the feeding shell is in linkage connection with the transmission mechanism (5).
3. A plastic packaging box injection moulding apparatus according to claim 1, wherein the chaff assembly (3) further comprises a material elevator (312) and a suction pipe (313), wherein the material elevator (312) is fixedly arranged at one end of the feeding housing (301), and is communicated with the suction pipe (313), and the suction pipe (313) is used for conveying sucked raw materials into the feeding housing (301).
4. The plastic packaging box injection molding equipment according to claim 1, wherein the material drying screen assembly (4) further comprises a feeding head (404), a feeding disc (405), a material guiding disc (406), a discharging column (407) and a slag discharging port (408), wherein the feeding head (404) is arranged at one end of a spiral hole net (403) and is used for inputting raw material particles to be dried and screened into the spiral hole net (403), the feeding disc (405) is further arranged at one end of the spiral hole net (403), the feeding disc (405) is fixedly connected with a material rotating shaft (402) and is communicated with the feeding head (404), the material guiding disc (406) is rotatably sleeved at one end of the feeding disc (405) and is fixedly arranged in a material drying shell (401) and is communicated with the feeding shell (301), the discharging column (407) is fixedly arranged at one end side of the material rotating shaft (402) and is communicated with the spiral hole net (403), and the slag discharging port (408) is arranged at the bottom of the material drying shell (401) and is used for removing the particles.
5. The plastic packaging box injection molding device according to claim 4, wherein the material drying screen assembly (4) further comprises a nozzle (410), a material guiding pipe (411) and an inner pipe groove (412), a plurality of the nozzle (410) are circumferentially arranged on the material drying shell (401) in parallel with the material rotating shaft (402) and are communicated with the air heater (409), the material guiding pipe (411) is arranged on one side of the material drying shell (401), the inner pipe groove (412) is arranged in the material rotating shaft (402) and is arranged near one side of the tail end of the material rotating shaft (402), the inner pipe groove (412) is communicated with the material discharging column (407), one end of the material guiding pipe (411) is sleeved on one side of the tail end of the material rotating shaft (402), and the other end of the material guiding pipe (411) is communicated with the material cylinder (201).
6. The plastic packaging box injection molding device according to claim 2, wherein the transmission mechanism (5) comprises a fixing frame (501), a driven gear (502), a first driving wheel (503), a curved bar (505), a rotating rod (506) and a second driving wheel (507), the fixing frame (501) is fixedly assembled on one side of the main frame (101), the driven gear (502) is rotatably assembled on one end of the fixing frame (501), a driving gear (106) is fixedly assembled on the driving shaft (103), the driven gear (502) is meshed with the driving gear (106), one end of the driven gear (502) is fixedly connected with the first driving wheel (503), one end of the first driving wheel (503) is fixedly connected with the curved bar (505), the rotating sleeve on the curved bar (505) is provided with the rotating rod (506), the tail end of the rotating rod (506) is rotatably connected with the supporting rod (310) for controlling the reciprocating sliding of the supporting rod (310), one end of the rotating rod (506) is fixedly connected with the second driving wheel (507), and the second driving wheel (507) is fixedly connected with the driving shaft (402) for rotating the linkage material.
7. The plastic packaging box injection molding device according to claim 1, further comprising a back pressure assembly (6), wherein the back pressure assembly (6) comprises a hydraulic pump (601), a push-pull rod (602) and a shutoff valve (603), the hydraulic pump (601) is fixedly assembled on the main frame (101), one end of the hydraulic pump (601) is connected with the sliding shaft (105) through the push-pull rod (602), and the shutoff valve (603) is further arranged at one end of the hydraulic pump (601).
CN202310746753.6A 2023-06-25 2023-06-25 Plastic packaging box injection molding equipment Active CN116494458B (en)

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Application Number Priority Date Filing Date Title
CN202310746753.6A CN116494458B (en) 2023-06-25 2023-06-25 Plastic packaging box injection molding equipment

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Application Number Priority Date Filing Date Title
CN202310746753.6A CN116494458B (en) 2023-06-25 2023-06-25 Plastic packaging box injection molding equipment

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CN116494458B true CN116494458B (en) 2023-09-12

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216172942U (en) * 2021-10-13 2022-04-05 广州佳毅旺塑料科技有限公司 Breaker is used in powder coating production
CN115245887A (en) * 2022-07-28 2022-10-28 江苏省产品质量监督检验研究院 Anticorrosive processingequipment of fine grain granulation hot rolling reinforcing bar
CN218196802U (en) * 2022-09-20 2023-01-03 武汉聚亚美新材料有限公司 Injection molding equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216172942U (en) * 2021-10-13 2022-04-05 广州佳毅旺塑料科技有限公司 Breaker is used in powder coating production
CN115245887A (en) * 2022-07-28 2022-10-28 江苏省产品质量监督检验研究院 Anticorrosive processingequipment of fine grain granulation hot rolling reinforcing bar
CN218196802U (en) * 2022-09-20 2023-01-03 武汉聚亚美新材料有限公司 Injection molding equipment

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