CN110815718B - Injection molding process of plastic spoon - Google Patents
Injection molding process of plastic spoon Download PDFInfo
- Publication number
- CN110815718B CN110815718B CN201911194401.4A CN201911194401A CN110815718B CN 110815718 B CN110815718 B CN 110815718B CN 201911194401 A CN201911194401 A CN 201911194401A CN 110815718 B CN110815718 B CN 110815718B
- Authority
- CN
- China
- Prior art keywords
- injection molding
- temperature steam
- raw materials
- temperature
- steel disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 114
- 239000004033 plastic Substances 0.000 title claims abstract description 90
- 229920003023 plastic Polymers 0.000 title claims abstract description 90
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 238000002844 melting Methods 0.000 claims abstract description 70
- 230000008018 melting Effects 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 238000012545 processing Methods 0.000 claims abstract description 53
- 230000008859 change Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000010008 shearing Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 88
- 239000000463 material Substances 0.000 claims description 39
- 238000010586 diagram Methods 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000003909 pattern recognition Methods 0.000 claims description 3
- 238000009877 rendering Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005526 G1 to G0 transition Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 14
- 230000033001 locomotion Effects 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000008187 granular material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000002923 metal particle Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Images
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
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
-
- 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
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
-
- 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
-
- 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
- B29C45/38—Cutting-off equipment for sprues or ingates
- B29C45/382—Cutting-off equipment for sprues or ingates disposed outside the mould
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/42—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
Abstract
The invention discloses a plastic spoon injection molding process, which utilizes a first steel disc, a second steel disc and other devices to realize batch production of plastic spoons and save time cost spent in production, thereby improving production efficiency. The process detects the temperature and high-temperature steam amount change trend in a melting cavity in real time through the temperature processing module and the steam detection module, and judges whether the injection molding machine normally works or not through the image processing module according to the detected temperature and high-temperature steam amount change trend, so that the production safety of the injection molding machine is ensured; high-temperature steam at the upper port of the melting cavity is shot in a plurality of directions along the circumference of the melting cavity, and bitmap conversion, shearing and contrast processing are performed on the image, so that a more accurate and more practical high-temperature steam image is obtained, and the reliability and accuracy of detection are improved.
Description
Technical Field
The invention relates to the technical field of injection molding processes, in particular to a plastic spoon injection molding process.
Background
Plastic products, including plastic tableware, plastic toys, plastic ornaments and the like, are mostly injection molded by an injection molding machine, and the injection molding process is to melt plastic particles, then pressurize and inject the molten liquid into a mold, and obtain the processed plastic products through the steps of cooling, demolding and the like.
At present, the injection molding process for processing the plastic spoon mostly adopts a plane injection molding process, and the plane injection molding process has the following problems in actual production:
1. due to the fact that the existing injection molding process has insufficient control over the temperature of the raw materials and high-temperature steam, abnormal conditions can occur when the raw materials are heated and cooled, for example, the raw materials cannot be melted due to insufficient heating, or the temperature is too high due to excessive high-temperature steam, the raw materials cannot be cooled and molded, and even an injection molding system can be damaged in serious cases, so that production safety is damaged;
2. when most injection molding machines work, raw materials are put in at one time, the raw materials are not screened, the raw materials with overlarge particles can be insufficiently melted, and the hot melting uniformity is influenced, so that the product quality is influenced;
3. the injection molding of one mold can be completed at one time, the molded plastic spoon can be obtained only by two steps of cooling and demolding after the injection molding is completed, and in the process, a nozzle of the injection molding machine is in an idle state, so that the processing efficiency of the injection molding machine for one plastic spoon is very low;
4. when a common multi-station plastic spoon injection molding machine produces plastic spoons, because the number of molding grooves for processing the plastic spoons is larger than that of injection molding openings, two adjacent plastic spoons are connected through a short section of plastic and need to be separated after material taking;
5. because the plastic spoon adopts the mode of plane injection moulding to mould plastics, vertical injection molding machine is not convenient for use thimble ejecting, so need the manual work to get the material or add the arm and get the material when getting the material, the manual work is got the material with high costs, inefficiency, and the arm is got the material with high costs, control system complicacy, ordinary arm also is difficult to separate the plastic spoon that links together in proper order under control system's control.
Therefore, the plastic spoon injection molding process is safe, high in processing efficiency and simple to control.
Disclosure of Invention
The invention aims to solve the defects that an injection molding machine for producing plastic spoons in the prior art is low in machining efficiency and cannot finish an accurate and rapid material taking process through a simple control system, and provides an injection molding process of the plastic spoon.
In order to achieve the purpose, the invention adopts the following technical scheme: a plastic spoon injection molding process comprises the following steps:
firstly, cleaning raw materials with clean water, washing impurities on the surface, then putting the raw materials into a feed hopper of an injection molding machine from a spiral feed pipe, making the scattered raw materials do circular motion, making magnetic impurities in the raw materials close to and adsorbed on a soft magnetic sheet under the attraction of the soft magnetic sheet, allowing large-particle raw materials to fall between a separation plate and the inner side wall of the feed hopper under the action of gravity and centripetal force, recovering the large-particle raw materials through a discharge port, and allowing small-particle raw materials to fall into the separation plate;
secondly, when the raw materials in the feeding hopper reach a preset amount, the first motor rotates to enable the second connecting rod to rotate clockwise, the lengths of the first connecting rod and the second connecting rod in the vertical direction are increased, one end of the connecting plate close to the first motor is lifted upwards to enable the top block to descend, the straight plate rotates along with the first connecting rod to enable the discharging opening to be opened, the raw materials roll down into the storage hopper along the straight plate, and then the first motor drives the second connecting rod to rotate anticlockwise to enable the discharging opening to be closed;
thirdly, conveying the raw materials in the storage hopper into a melting cavity, extruding, melting and flowing the raw materials into injection molding ports, rotating a screw rod to enable a pressurizing block to move and press a first steel disc and a second steel disc, enabling two injection molding nozzles to gradually approach the first steel disc under the pushing of an air cylinder, injecting the molten raw materials into two upper molds on the first steel disc by the two injection molding nozzles, then feeding the molten raw materials into a lower mold on the second steel disc, filling the molten raw materials into a forming groove along a shunting groove path for injection molding by the molten raw materials under the action of pressure, and lifting the two injection molding nozzles and rotating to the positions of the other two molds for injection molding after the injection molding of the two molds is completed;
fourthly, after injection molding of all molds is completed, the injection molding mouth leaves the injection molding mouth, the plastic spoon is completely molded through pressure maintaining and cooling of a mold locking mechanism, a screw rod rotates to enable a pressurizing block to be separated from a first steel disc, meanwhile, a second motor moves towards the direction far away from the first steel disc, the first steel disc is separated from a second steel disc under the action of a spring, an electric push rod drives a material carrying disc to move at the moment to enable the material carrying disc to be positioned right below an upper mold, the molded material at the position of a shunting channel is sucked up through a negative pressure pipe, a laser head carries out hot melting on the material carrying disc to enable the connected plastic spoon to be separated, then the negative pressure action is removed, the plastic spoon falls into an annular groove, waste materials at the position of the shunting channel fall into a cylindrical groove, and automatic classification and collection of plastic products are;
and fifthly, after the collection is completed, the electric push rod drives the material carrying disc to reset, and the plastic spoon can be produced in batch uninterruptedly by circulating the processes.
Preferably, the melting cavity is provided with a temperature processing module, a steam detection module, an image processing module and an alarm module, the temperature processing module is used for collecting the temperature of the raw materials in the heating process through a temperature sensor arranged in the melting cavity and drawing the temperature change trend of the temperature along with the change of time to obtain a raw material temperature change diagram, the steam detection module is used for carrying out infrared shooting on high-temperature steam at the upper port of the melting cavity, recording a high-temperature steam quantity diagram at the upper port of the melting cavity in the injection molding process and drawing a high-temperature steam quantity change diagram of the high-temperature steam quantity along with the change of time according to the high-temperature steam quantity diagram, the image processing module is used for receiving and displaying the raw material temperature change diagram and the high-temperature steam quantity change diagram in real time and comparing the two diagrams, when the temperature change trend is inconsistent with the high-temperature steam quantity change trend, the alarm module sends out an alarm prompt.
The temperature and the high-temperature steam amount change trend in the melting cavity are detected in real time through the temperature processing module and the steam detection module, whether the injection molding machine works normally or not is judged through the image processing module according to the detected temperature and the high-temperature steam amount change trend, and the alarm module is controlled to send an alarm prompt once the injection molding machine works abnormally, so that the production safety of the injection molding machine is guaranteed.
Preferably, the recording of the high-temperature steam quantity diagram at the upper port of the melting cavity in the injection molding process specifically comprises the following steps:
s1: the steam detection module obtains infrared shooting real-time images of high-temperature steam at the upper port of the melting cavity in multiple directions along the circumference of the melting cavity, and determines the geometric center of the upper port of the melting cavity on each image by analyzing the geometric shape of the upper port of the melting cavity in the images;
s2: performing bitmap conversion on the high-temperature steam flow image in a circle with r as the radius around the geometric center, rendering the high-temperature steam flow image to a two-dimensional surface, converting the actual size into pixels, and shearing the high-temperature steam flow image in a circle with r 'as the radius around the geometric center, wherein r' is greater than r, and converting the actual size into pixels;
s3: processing the cut high-temperature steam quantity image by using an image extraction technology, increasing the contrast of the image and highlighting the distribution range of the high-temperature steam in the image;
s4: comparing the high-temperature steam quantity image converted by the pixel bitmap with the sheared high-temperature steam quantity image by using a pattern recognition technology with a geometric center as a reference, removing a result that the contrast value is smaller than a preset contrast value, and keeping a result that the contrast value is larger than the preset contrast value, so that a high-temperature steam quantity map at the upper port of the melting cavity is determined, and the determined high-temperature steam quantity map corresponds to the shooting time of the image one to one, so that the high-temperature steam quantity change map is conveniently drawn.
High-temperature steam at the upper port of the melting cavity is shot in a plurality of directions along the circumference of the melting cavity, and bitmap conversion, shearing and contrast processing are performed on the image, so that a more accurate and more practical high-temperature steam image is obtained, and the reliability and accuracy of detection are improved.
The injection molding machine comprises a processing platform and a mounting frame fixedly mounted on the processing platform, wherein an air cylinder, a storage hopper and a melting cavity are fixedly mounted on the mounting frame from top to bottom in sequence, two injection nozzles are mounted at the lower end of the melting cavity, a second steel disc and two mold locking devices are mounted on the processing platform, the processing platform is commonly connected with a first steel disc through a plurality of springs, and the first steel disc is positioned above the second steel disc;
two upper dies are fixedly arranged on the lower surface of the first steel disc, a material taking mechanism is arranged in each upper die, each material taking mechanism comprises a communicating cavity arranged on the first steel disc, and a plurality of laser heads and a plurality of negative pressure pipes are arranged in each communicating cavity;
a plurality of lower moulds are symmetrically installed on the upper surface of the second steel disc, each injection molding opening and a plurality of molding grooves are formed in the lower mould, the corresponding molding grooves are symmetrically distributed along the circumferential direction and about the central axis of the injection molding opening, and each injection molding opening is communicated with a plurality of molding grooves corresponding to the injection molding opening in position.
Preferably, the flexible end of cylinder links to each other with the top stationary phase in melting chamber, and axis between them coincides mutually, the storage hopper is linked together through hose and melting chamber, it has the feeder hopper to support through the rack on the mounting bracket, the inlet pipe of helical shape is installed to the upper end of feeder hopper, and fixed welding has the division board in the feeder hopper, the feed opening has been seted up and the rotation is installed straight board to the bottom of feeder hopper, the fixed drop feed mechanism that is provided with on the rack, and drop feed mechanism and straight board fixed surface link to each other.
Preferably, drop feed mechanism includes balancing piece and the first motor of fixed mounting on the rack, fixedly connected with second connecting rod on the output shaft of first motor, and the top of second connecting rod rotates and is connected with first connecting rod, first connecting rod rotates with balancing piece jointly and is connected with even board, even the one end that the board is close to the storage hopper offsets through the kicking block with the lower surface of straight board.
Preferably, the upper end and the lower extreme of division board are cylinder and hollow frustum shape respectively, and the lower extreme of division board links to each other with the inside wall of feeder hopper is sealed, a plurality of bin outlets have been seted up to the symmetry on the lateral wall of feeder hopper, and the position of every bin outlet all corresponds with the position of division board.
Preferably, each mode locking device comprises a sliding seat installed on the upper surface of the machining platform, a second motor is arranged on each sliding seat in a sliding mode, a lead screw is fixedly connected to an output shaft of each second motor in a sliding mode, a pressurizing block is installed on each lead screw, and each pressurizing block is L-shaped and corresponds to the position of the first steel plate.
Preferably, the number of the laser heads positioned in the same upper die is the same as that of the shunt slot ways on any one lower die, and the plurality of laser heads and the plurality of shunt slot ways corresponding to the positions are circumferentially distributed.
Preferably, still the symmetry installs a plurality of transmission device on the processing platform, every transmission device all includes installs the electric putter on the processing platform, every equal fixed connection carries the charging tray on the electric putter, every carry and all seted up ring channel and column shape groove coaxially on the charging tray, and corresponding column shape groove is located the inboard of ring channel, every the diameter of ring channel all is greater than the diameter of arbitrary one last mould.
Preferably, a plurality of soft magnetic sheets are arranged on the inner side wall of the feed hopper in a surrounding mode, and each soft magnetic sheet is located between the separation plate and the feed pipe.
Preferably, the inclination angle of the side wall of the annular groove close to the cylindrical groove direction is 15-30 degrees.
The invention has the beneficial effects that:
1. the temperature and the high-temperature steam amount change trend in the melting cavity are detected in real time through the temperature processing module and the steam detection module, whether the injection molding machine works normally or not is judged through the image processing module according to the detected temperature and the high-temperature steam amount change trend, and the alarm module is controlled to send an alarm prompt once the injection molding machine works abnormally, so that the production safety of the injection molding machine is guaranteed.
2. High-temperature steam at the upper port of the melting cavity is shot in a plurality of directions along the circumference of the melting cavity, and bitmap conversion, shearing and contrast processing are performed on the image, so that a more accurate and more practical high-temperature steam image is obtained, and the reliability and accuracy of detection are improved.
3. Set up to the heliciform through the inlet pipe with on the feeder hopper, can make the raw materials that drop into be circular motion, because the inertia of large granule raw materials and tiny particle raw materials is different, consequently its movement track is also different, so great granule can fall to between division board and the feeder hopper inside wall, retrieve it through the bin outlet, tiny particle raw materials falls into in the division board, thereby realize the filtering of large granule raw materials, guarantee that the homogeneity of raw materials hot melt is good, be favorable to improving injection moulding product's product quality.
4. Through setting up devices such as first connecting rod, second connecting rod, kicking block, straight board, can realize opening or closing of feeder hopper lower extreme bin outlet, control row material speed is compared in the rotation of directly using other equipment control straight boards such as telescopic cylinder, and this device has longer stroke, and is convenient for maintain, change, and use cost is lower.
5. Through the clamping mechanism that installation lead screw, slide, add briquetting, second motor constitute, can guarantee the leakproofness between first steel disc and the second steel disc, maintain the pressure value between the two, make the shaping of plastics spoon faster.
6. After the plastic spoon is molded and cooled, the plastic spoon in a mold can be completely sucked up by the negative pressure pipe, the joint of the plastic spoon is subjected to hot melting through the laser head, then the negative pressure is removed to naturally drop to the annular groove, and the waste material at the joint of the middle part falls into the cylindrical groove, so that the aims of respectively collecting the plastic spoon and the waste material are fulfilled, and the plastic spoons can be completely separated.
7. The ring channel sets up with the cylindricality groove is coaxial, the diameter of the circle that the internal diameter ratio reposition of redundant personnel groove way constitutes in the cylindricality groove is slightly bigger, the diameter of mould is big on the diameter ratio of ring channel, consequently, the waste material can fall to the cylindricality inslot in the same direction as the benefit, thereby can not bump the phenomenon of bounce with the cell wall in two grooves, because the spoon body department quality of plastics spoon is slightly bigger, consequently the slope whereabouts of plastics spoon, can not fall to the cylindricality inslot, and the ring channel inside wall has certain inclination, can play the guide effect to the plastics spoon, avoid plastics spoon and waste material to mix.
8. The inside wall of feeder hopper is gone up the encircleing and is provided with a plurality of soft magnetic sheets, and the metal impurity in the adsorbable raw materials of soft magnetic sheet plays the screening effect to when the metal particle on the soft magnetic sheet is more, only need use brush or the stronger permanent magnet of magnetic force wipe down metal particle or adsorb can, soft magnetic sheet can recycle.
9. Through designing two mouths and a plurality of mould of moulding plastics to the quantity of mould is the even number, consequently when the mouth of moulding plastics, all the other moulds can cool off, can practice thrift the time of moulding plastics through this mode, improves production efficiency, realizes the batch production of plastics spoon.
In conclusion, the plastic spoon collecting and separating device has the advantages that the first steel disc, the second steel disc and the like are utilized, the batch production of the plastic spoons can be realized, the time cost spent in production is saved, the production efficiency is improved, in addition, the automatic collection and separation of the plastic spoons can be realized without manual work and complicated mechanical devices when the plastic spoons are taken, the control system is simple, and the maintenance is convenient.
Drawings
FIG. 1 is a schematic structural diagram of an injection molding machine in the plastic spoon injection molding process provided by the invention;
FIG. 2 is a schematic structural diagram of a feeding mechanism in the plastic spoon injection molding process according to the present invention;
FIG. 3 is a schematic structural diagram of a mold locking device in the plastic spoon injection molding process according to the present invention;
FIG. 4 is a schematic diagram of a front structure of a portion of a connecting portion between a feed hopper and a straight plate in the injection molding process of the plastic spoon according to the present invention;
FIG. 5 is a bottom view of the upper mold plate in the plastic spoon injection molding process according to the present invention;
FIG. 6 is a top view of a lower mold plate in the plastic spoon injection molding process according to the present invention;
FIG. 7 is an enlarged view taken at A in FIG. 6;
fig. 8 is a schematic structural diagram of a material taking mechanism in the plastic spoon injection molding process provided by the invention;
FIG. 9 is a top view of a material carrying tray in the plastic spoon injection molding process according to the present invention;
fig. 10 is a schematic view of a position relationship between a material carrying disc and an electric push rod in the plastic spoon injection molding process provided by the invention.
In the figure: 1 cylinder, 2 mounting brackets, 3 storage hoppers, 4 feed hoppers, 5 soft magnetic sheets, 6 partition plates, 7 discharging mechanisms, 8 placing racks, 9 melting cavities, 10 injection molding nozzles, 11 lead screws, 12 processing platforms, 13 second steel discs, 14 sliding seats, 15 pressurizing blocks, 16 first steel discs, 17 discharging openings, 18 straight plates, 19 top blocks, 20 balance pieces, 21 connecting plates, 22 first connecting rods, 23 second connecting rods, 24 upper molds, 25 lower molds, 26 forming grooves, 27 injection molding openings, 28 shunting grooves, 29 discharging mechanisms, 30 heat insulation plates, 31 laser heads, 32 negative pressure pipes, 33 material loading discs, 34 annular grooves and 35 cylindrical grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-10, a plastic spoon injection molding process includes the following steps:
firstly, cleaning raw materials with clean water, washing impurities on the surface, then putting the raw materials into a feed hopper 4 of an injection molding machine from a spiral feed pipe, making the scattered raw materials do circular motion, making magnetic impurities in the raw materials close to and adsorbed on a soft magnetic sheet 5 under the attraction of the soft magnetic sheet 5, allowing large-particle raw materials to fall between a separation plate 6 and the inner side wall of the feed hopper 4 under the action of gravity and centripetal force, recovering the large-particle raw materials through a discharge port, and allowing small-particle raw materials to fall into the separation plate 6;
secondly, when the raw materials in the feeding hopper 4 reach a preset amount, the first motor rotates to enable the second connecting rod 23 to rotate clockwise, the lengths of the first connecting rod 22 and the second connecting rod 23 in the vertical direction are increased, one end, close to the first motor, of the connecting plate 21 is lifted upwards to enable the top block 19 to descend, the straight plate 18 rotates along with the first connecting rod to enable the discharging opening 17 to be opened, the raw materials roll down into the storage hopper 3 along the straight plate 18, and then the first motor drives the second connecting rod 23 to rotate anticlockwise to enable the discharging opening 17 to be closed;
thirdly, the raw materials in the storage hopper 3 are conveyed into the melting cavity 9, the raw materials are extruded, melted and flow into the injection molding ports 10, meanwhile, the screw rod 11 rotates, the pressurizing block 15 moves downwards and presses the first steel disc 16 and the second steel disc 13, the two injection molding nozzles 10 are gradually close to the first steel disc 16 under the push of the cylinder 1, the two injection molding nozzles 10 firstly inject the molten raw materials into the two upper molds 24 on the first steel disc 16, then the raw materials flow into the lower molds 25 on the second steel disc 13, the molten raw materials are filled into the molding grooves 26 along the diversion channel 28 to be subjected to injection molding under the action of pressure, and after the injection molding of the first two molds is completed, the two injection molding nozzles 10 are lifted and rotated to the positions of the other two molds to be subjected to injection molding;
fourthly, after injection molding of all molds is completed, the injection molding mouth 10 leaves the injection molding mouth 17, pressure maintaining and cooling are carried out through a mold locking mechanism, the plastic spoon is completely molded, the screw rod 11 rotates to enable the pressurizing block 15 to be separated from the first steel disc 16, meanwhile, the second motor moves towards the direction far away from the first steel disc 16, under the action of the spring, the first steel disc 16 is separated from the second steel disc 13, at the moment, the electric push rod drives the material carrying disc 33 to move to enable the material carrying disc to be positioned under the upper mold 24, the molded material at the shunting channel 28 is sucked up through the negative pressure pipe 32, the laser head 13 carries out hot melting on the material carrying disc, the connected plastic spoon is separated, then the negative pressure effect is removed, the plastic spoon falls into the annular groove 34, the waste material at the shunting channel 28 falls into the column-shaped groove 35, and automatic classification and collection of the plastic products;
and fifthly, after the collection is finished, the electric push rod drives the material carrying disc 33 to reset, and the plastic spoon can be produced in batch uninterruptedly by circulating the processes.
The melting cavity 9 is provided with a temperature processing module, a steam detection module, an image processing module and an alarm module, wherein the temperature processing module is used for collecting the temperature of the raw materials in the heating process through a temperature sensor arranged in the melting cavity 9 and drawing the temperature change trend of the temperature along with the time change to obtain a raw material temperature change diagram, the steam detection module is used for carrying out infrared shooting on the high-temperature steam at the upper port of the melting cavity 9, recording the high-temperature steam quantity diagram at the upper port of the melting cavity 9 in the injection molding process and drawing the high-temperature steam quantity change diagram of the high-temperature steam quantity along with the time change according to the high-temperature steam quantity diagram, the image processing module is used for receiving and displaying the raw material temperature change diagram and the high-temperature steam quantity change diagram in real time and comparing the two diagrams, when the temperature change trend is inconsistent with the high-temperature steam quantity change trend, the alarm module sends out an alarm prompt. The temperature processing module and the steam detection module are used for detecting the temperature and the high-temperature steam amount change trend in the melting cavity 9 in real time, the image processing module is used for judging whether the injection molding machine normally works according to the detected temperature and the high-temperature steam amount change trend, and the alarm module is controlled to send an alarm prompt once the injection molding machine is abnormal, so that the production safety of the injection molding machine is ensured.
The recording of the high-temperature steam quantity diagram at the upper port of the melting cavity 9 in the injection molding process specifically comprises the following steps:
s1: the steam detection module obtains infrared shooting real-time images of high-temperature steam at the upper port of the melting cavity 9 in multiple directions along the circumference of the melting cavity 9, and determines the geometric center of the upper port of the melting cavity 9 on each image by analyzing the geometric shape of the upper port of the melting cavity 9 in the image;
s2: performing bitmap conversion on the high-temperature steam flow image in a circle with r as the radius around the geometric center, rendering the high-temperature steam flow image to a two-dimensional surface, converting the actual size into pixels, and shearing the high-temperature steam flow image in a circle with r 'as the radius around the geometric center, wherein r' is greater than r, and converting the actual size into pixels;
s3: processing the cut high-temperature steam quantity image by using an image extraction technology, increasing the contrast of the image and highlighting the distribution range of the high-temperature steam in the image;
s4: comparing the high-temperature steam quantity image converted by the pixel bitmap with the sheared high-temperature steam quantity image by using a pattern recognition technology with a geometric center as a reference, removing a result that the contrast value is smaller than a preset contrast value, and keeping a result that the contrast value is larger than the preset contrast value, so that a high-temperature steam quantity map at the upper port of the melting cavity 9 is determined, and the determined high-temperature steam quantity map corresponds to the shooting time of the image one to one, so that the drawing of a high-temperature steam quantity change map is facilitated.
High-temperature steam at the upper port of the melting cavity 9 is shot in multiple directions along the circumference of the melting cavity 9, and bitmap conversion, shearing and contrast processing are performed on the image, so that a more accurate and more practical high-temperature steam map is obtained, and the reliability and accuracy of detection are improved.
The injection molding machine comprises a processing platform 12 and an installation frame 2 fixedly installed on the processing platform 12, wherein an air cylinder 1, a storage hopper 3 and a melting cavity 9 are fixedly installed on the installation frame 2 from top to bottom in sequence, two injection molding nozzles 10 are installed at the lower end of the melting cavity 9, a second steel plate 13 and two mold locking devices are installed on the processing platform 12, the processing platform 12 is commonly connected with a first steel plate 16 through a plurality of springs, and the first steel plate 16 is located above the second steel plate 13;
the lower surface of the first steel plate 16 is fixedly provided with two upper molds 24, each upper mold 24 is internally provided with a material taking mechanism 29, each material taking mechanism 29 comprises a communicating cavity arranged on the first steel plate 16, the position of each communicating cavity corresponds to the position of the center of the corresponding upper mold 24, each communicating cavity is internally provided with a plurality of laser heads 31 and a plurality of negative pressure pipes 32, the plurality of laser heads 31 and the negative pressure pipes 32 corresponding to the positions are fixed on the first steel plate 16 through heat insulation plates 30, the communicating cavities are used for injection molding of the injection molding nozzles 10, and the heat insulation plates 30 are used for preventing the laser heads 31 and the negative pressure pipes 32 from being directly exposed to a high heat source;
a plurality of lower moulds 25 are installed to the upper surface symmetry of second steel disc 13, mouth 27 and a plurality of shaping groove 26 of moulding plastics have all been seted up on every lower mould 25, and a plurality of shaping groove 26 corresponding along the circumferencial direction and about the axis symmetric distribution of mouth 27 of moulding plastics, every is moulded plastics and all is communicated with shunt canals 28 between a plurality of shaping grooves 26 that the mouth 27 and the position correspond, molten state plastics flow to each shunt canals 28 by mouth 27 of moulding plastics under the pressure effect, rethread shunt canals 28 flow to shaping groove 26, accomplish the process of moulding plastics, the diameter and the length of shunt canals 28 are far less than notch width and the cell body length of shaping groove 26, waste with the reduction raw materials.
According to the invention, the telescopic end of the cylinder 1 is fixedly connected with the top end of the melting cavity 9, the central axes of the telescopic end and the melting cavity are coincident, the storage hopper 3 is communicated with the melting cavity 9 through a hose, the mounting frame 2 is supported with the feed hopper 4 through the placing frame 8, the upper end of the feed hopper 4 is provided with the spiral feed pipe, the inside of the feed hopper 4 is fixedly welded with the partition plate 6, the bottom of the feed hopper 4 is provided with the feed opening 17 and is rotatably provided with the straight plate 18, the placing frame 8 is fixedly provided with the discharging mechanism, and the discharging mechanism is fixedly connected with the lower.
The drop feed mechanism includes balance member 20 and the first motor of fixed mounting on rack 8, fixedly connected with second connecting rod 23 on the output shaft of first motor, and the top of second connecting rod 23 rotates and is connected with first connecting rod 22, first connecting rod 22 rotates with balance member 20 jointly and is connected with even board 21, even board 21 is close to the one end of storage hopper 3 and offsets through kicking block 19 and the lower surface of straight board 18, first connecting rod 22 drives and links and pull 21 and use balance member 20 and link the department of linking to each other to rotate as the center.
The upper end and the lower extreme of division board 6 are cylinder and hollow frustum shape respectively, and the lower extreme of division board 6 links to each other with the inside wall of feeder hopper 4 is sealed, and a plurality of bin outlets have been seted up to the symmetry on the lateral wall of feeder hopper 4, and the position of every bin outlet all corresponds with division board 6's position.
Every mode locking device all is including installing the slide 14 at 12 upper surfaces of processing platform, all slides on every slide 14 and is provided with the second motor and through the output shaft fixedly connected with lead screw 11 of second motor, all installs on every lead screw 11 and adds briquetting 15, and every adds briquetting 15 and is L shape and corresponding with the position of first steel disc 16, and L shape adds briquetting 15 can with the better block of first steel disc 16.
The number of the laser heads 31 positioned in the same upper die 24 is the same as that of the shunt channel 28 on any one lower die 25, namely the number of the upper die 24 is the same as that of the lower die 25, the laser heads 31 and the shunt channel 28 which correspond in position are circumferentially distributed, and the laser heads 31 are used for fusing the plastic connecting piece formed at the shunt channel 28.
Still the symmetry installs a plurality of transmission device on the processing platform 12, and every transmission device is all including installing the electric putter on processing platform 12, every electric putter is last all fixed connection has the material tray 33 of carrying, and equal coaxial ring channel 34 and the columnar order 35 of having seted up on every material tray 33 of carrying, and corresponding columnar order 35 is located the inboard of ring channel 34, and the diameter of every ring channel 34 all is greater than the diameter of arbitrary one upper die 24, and columnar order 35 is used for holding the waste material, and ring channel 34 is used for holding the good plastic spoon of processing.
A plurality of soft magnetic sheets 5 are arranged on the inner side wall of the feed hopper 4 in a surrounding mode, each soft magnetic sheet 5 is located between the partition plate 6 and the feed pipe, and the soft magnetic sheets 5 can screen out metal particles in raw materials.
The side wall of the annular groove 34 in the direction close to the cylindrical groove 35 is inclined at an angle of 15-30 deg., and the plastic spoon can slide down into the annular groove 34 by means of the slope when falling down.
When the invention is used, raw materials are put into the feed hopper 4 from a spiral feed pipe, so that the scattered raw materials do circular motion, magnetic impurities in the raw materials are attracted by the soft magnetic sheet 5 to be close to and adsorbed on the soft magnetic sheet 5, the raw materials with larger particles may be insufficiently melted during melting, and the product quality is influenced, so that the raw materials need to be screened firstly, the raw materials have different particle sizes and different masses and larger inertia, the radius of circular motion of the raw materials with larger particles is gradually increased under the action of gravity and centripetal force, and the increasing speed of the moving radius of the raw materials with smaller particles is smaller than the increasing speed of the moving radius of the raw materials with larger particles, so that the raw materials with larger particles fall between the partition plate 6 and the inner side wall of the feed hopper 4 and are recovered through a discharge port, and the raw materials with smaller particles fall into the partition;
when the raw material in the feeding hopper 4 reaches a certain amount, the first motor rotates to enable the second connecting rod 23 to rotate clockwise, the lengths of the first connecting rod 22 and the second connecting rod 23 in the vertical direction are increased, one end, close to the first motor, of the connecting plate 21 is lifted upwards to enable the top block 19 to descend, the straight plate 18 rotates along with the first connecting rod, the discharging opening 17 is opened, the raw material falls into the storage hopper 3 along the straight plate 18 in a rolling mode, and then the first motor drives the second connecting rod 23 to rotate anticlockwise to enable the discharging opening 17 to be closed;
the raw materials in the storage hopper 3 are conveyed into the melting chamber 9, the raw materials are extruded and melted under the action of a pressurizing device and flow into the injection molding ports 10 (the pressurizing device is not shown), meanwhile, the screw rod 11 rotates, so that the pressurizing block 15 moves downwards and presses the first steel disc 16 and the second steel disc 13, the two injection molding nozzles 10 gradually approach the first steel disc 16 under the pushing of the air cylinder 1, the two injection molding nozzles 10 firstly inject the molten raw materials into two upper molds 24 on the first steel disc 16, then the raw materials flow into a lower mold 25 on the second steel disc 13, the molten raw materials are filled into a forming groove 26 along a diversion channel 28 to be injected under the pressure, and after the injection molding of the former two molds is completed, the two injection molding nozzles 10 are lifted and rotate to the positions of the other two molds to be injected;
after injection molding of all molds is completed, the injection molding mouth 10 leaves the injection molding mouth 17, the plastic spoon is completely molded through pressure maintaining and cooling of a mold locking mechanism, then the mold locking mechanism is opened, namely the screw rod 11 rotates to enable the pressurizing block 15 to be separated from the first steel disc 16, meanwhile, the second motor moves towards the direction far away from the first steel disc 16, the first steel disc 16 is separated from the second steel disc 13 under the action of the spring, at the moment, the electric push rod drives the material carrying disc 33 to move to be positioned under the upper mold 24, the molded material at the shunting channel 28 is sucked up through the negative pressure pipe 32, the laser head 13 carries out hot melting on the material, the connected plastic spoon is separated, then the negative pressure effect is removed, the plastic spoon falls into the annular groove 34, and the waste at the shunting channel 28 falls into the cylindrical groove 35, so that automatic classification and collection of plastic products are realized;
after the collection is finished, the electric push rod drives the material carrying disc 33 to reset, and the plastic spoon can be produced in batch without interruption by circulating the process;
it should be noted that the number of the lower molds 25 is four or more, and is a multiple of 2, taking four lower molds 25 as an example, after two injection nozzles 10 have injected two molds, two injection nozzles 10 can be lifted and rotated to the positions of the other two molds for injection molding, and at this time, the former two molds can utilize the time to perform pressure maintaining and cooling on the raw materials inside the former two molds, and wait for the formation of the plastic spoon, thereby saving time and improving efficiency; the injection nozzle 10 can rotate by itself in a servo motor driving mode (the servo motor can be directly arranged on the cylinder 1, and can also drive the melting cavity 9 to rotate in a gear ring and gear meshing mode, so that the cylinder 1 and the injection nozzle 10 are indirectly driven to rotate), and the angle of single rotation is the included angle between the two injection nozzles 10; cylinder 1 passes through deep groove ball bearing and rotationally installs on mounting bracket 2, and along with the rotation of moulding plastics mouth 10, cylinder 1 also can be along with rotating for the axis of cylinder 1 and the axis coincidence of melting chamber 9 all the time, the rotation mode of moulding plastics mouth 10 should be reciprocating type rotation, if rotate 180 back anticlockwise rotation 180 clockwise again, guarantee that the raw materials in the storage hopper 3 can carry to the melting chamber 9 in smoothly always.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The plastic spoon injection molding process is characterized by comprising the following steps:
firstly, cleaning raw materials with clean water, washing impurities on the surface, then putting the raw materials into a feed hopper (4) of an injection molding machine from a spiral feed pipe, making the scattered raw materials move circularly, making magnetic impurities in the raw materials close to and adsorbed on a soft magnetic sheet (5) under the attraction of the soft magnetic sheet (5), allowing large-particle raw materials to fall between a partition plate (6) and the inner side wall of the feed hopper (4) under the action of gravity and centripetal force, recovering the large-particle raw materials through a discharge port, and allowing small-particle raw materials to fall into the partition plate (6);
secondly, when the raw materials in the feeding hopper (4) reach a preset amount, the first motor rotates to enable the second connecting rod (23) to rotate clockwise, the lengths of the first connecting rod (22) and the second connecting rod (23) in the vertical direction are increased, one end, close to the first motor, of the connecting plate (21) is lifted upwards to enable the ejector block (19) to descend, the straight plate (18) rotates along with the connecting plate to enable the discharging opening (17) to be opened, the raw materials roll down into the storage hopper (3) along the straight plate (18), and then the first motor drives the second connecting rod (23) to rotate anticlockwise to enable the discharging opening (17) to be closed;
thirdly, conveying the raw materials in the storage hopper (3) into a melting cavity (9), extruding, melting and flowing the raw materials into injection nozzles (10), simultaneously rotating a lead screw (11), so that a pressurizing block (15) moves downwards and a first steel disc (16) and a second steel disc (13) are pressed together, the two injection nozzles (10) are gradually close to the first steel disc (16) under the pushing of an air cylinder (1), the two injection nozzles (10) inject the molten raw materials into two upper molds (24) on the first steel disc (16), then the raw materials flow into a lower mold (25) on the second steel disc (13), the molten raw materials are filled into a forming groove (26) along a diversion channel (28) for injection molding under the action of pressure, and after the injection molding of the two former molds is completed, the two injection nozzles (10) are lifted and rotated to the positions of the other two molds for injection molding;
fourthly, after injection molding of all the molds is finished, the injection molding nozzle (10) leaves the injection molding opening (27), the plastic spoon is completely molded after pressure maintaining and cooling of the mold locking mechanism, the screw rod (11) rotates to enable the pressurizing block (15) to be separated from the first steel plate (16), and meanwhile, the second motor moves towards the direction far away from the first steel plate (16), under the action of the spring, the first steel disc (16) is separated from the second steel disc (13), at the moment, the electric push rod drives the material carrying disc (33) to move so as to be positioned under the upper die (24), the material formed at the position of the shunt channel (28) is sucked up through a negative pressure pipe (32), and is hot melted by a laser head (31) to separate the connected plastic spoons, then the negative pressure action is removed, the plastic spoon falls into the annular groove (34), the waste material at the diversion channel (28) falls into the cylindrical groove (35), and the automatic classification and collection of the plastic products are realized;
fifthly, after the collection is finished, the electric push rod drives the material carrying disc (33) to reset, and the process is circulated to produce the plastic spoons in batch continuously; the melting chamber (9) is provided with a temperature processing module, a steam detection module, an image processing module and an alarm module, the temperature processing module is used for collecting the temperature in the raw material heating process through a temperature sensor arranged in the melting chamber (9) and drawing the temperature change trend of the temperature along with the time change to obtain a raw material temperature change diagram, the steam detection module is used for carrying out infrared shooting on high-temperature steam at the upper port of the melting chamber (9), recording a high-temperature steam quantity diagram at the upper port of the melting chamber (9) in the injection molding process and drawing a high-temperature steam quantity change diagram of the high-temperature steam quantity along with the time change according to the high-temperature steam quantity diagram, the image processing module is used for receiving and displaying the raw material temperature change diagram and the high-temperature steam quantity change diagram in real time and comparing the two diagrams, when the temperature change trend is inconsistent with the high-temperature steam quantity change trend, the alarm module sends out an alarm prompt;
the recording of the high-temperature steam quantity diagram at the upper port of the melting cavity (9) in the injection molding process specifically comprises the following steps:
s1: the steam detection module obtains infrared shooting real-time images of high-temperature steam at the upper port of the melting cavity (9) in multiple directions, and determines the geometric center of the upper port of the melting cavity (9) on each image by analyzing the geometric shape of the upper port of the melting cavity (9) in the images;
s2: performing bitmap conversion on the high-temperature steam flow image in a circle with r as the radius around the geometric center, rendering the high-temperature steam flow image to a two-dimensional surface, converting the actual size into pixels, and shearing the high-temperature steam flow image in a circle with r 'as the radius around the geometric center, wherein r' is greater than r, and converting the actual size into pixels;
s3: processing the cut high-temperature steam quantity image by using an image extraction technology, increasing the contrast of the image and highlighting the distribution range of the high-temperature steam in the image;
s4: comparing the high-temperature steam quantity image converted by the pixel bitmap with the sheared high-temperature steam quantity image by using a pattern recognition technology with a geometric center as a reference, removing a result that the contrast value is smaller than a preset contrast value, and keeping a result that the contrast value is larger than the preset contrast value, so as to determine a high-temperature steam quantity diagram at the upper port of the melting cavity (9), wherein the determined high-temperature steam quantity diagram corresponds to the shooting time of an image one to one, and the drawing of a high-temperature steam quantity change diagram is facilitated;
the injection molding machine comprises a processing platform (12) and a mounting rack (2) fixedly mounted on the processing platform (12), and is characterized in that an air cylinder (1), a storage hopper (3) and a melting cavity (9) are fixedly mounted on the mounting rack (2) from top to bottom in sequence, two injection molding nozzles (10) are mounted at the lower end of the melting cavity (9), a second steel disc (13) and two mold locking devices are mounted on the processing platform (12), the processing platform (12) is connected with a first steel disc (16) through a plurality of springs, and the first steel disc (16) is located above the second steel disc (13); two upper dies (24) are fixedly arranged on the lower surface of the first steel disc (16), a material taking mechanism (29) is arranged in each upper die (24), each material taking mechanism (29) comprises a communicating cavity arranged on the first steel disc (16), and a plurality of laser heads (31) and a plurality of negative pressure pipes (32) are arranged in each communicating cavity;
a plurality of lower molds (25) are symmetrically arranged on the upper surface of the second steel disc (13), each lower mold (25) is provided with an injection molding opening (27) and a plurality of forming grooves (26), the corresponding forming grooves (26) are symmetrically distributed along the circumferential direction and about the central axis of the injection molding opening (27), and a shunt groove path (28) is communicated between each injection molding opening (27) and the corresponding forming grooves (26);
the flexible end of cylinder (1) links to each other with the top stationary phase of melting chamber (9), and axis between them coincides mutually, storage hopper (3) are linked together through hose and melting chamber (9), it has feeder hopper (4) to support through rack (8) on mounting bracket (2), the inlet pipe of helical shape is installed to the upper end of feeder hopper (4), and feeder hopper (4) internal fixation welding has division board (6), feed opening (17) and rotation are seted up to the bottom of feeder hopper (4) and straight board (18) are installed, the fixed feeding mechanism that is provided with on rack (8), and feeding mechanism and straight board (18) lower fixed surface link to each other.
2. The plastic spoon injection molding process according to claim 1, wherein the discharging mechanism comprises a balance piece (20) and a first motor which are fixedly mounted on the placing rack (8), a second connecting rod (23) is fixedly connected to an output shaft of the first motor, a first connecting rod (22) is rotatably connected to the top end of the second connecting rod (23), the first connecting rod (22) and the balance piece (20) are rotatably connected with a connecting plate (21) together, and one end, close to the storage hopper (3), of the connecting plate (21) abuts against the lower surface of the straight plate (18) through a top block (19).
3. The injection molding process of a plastic spoon as claimed in claim 1, wherein the upper end and the lower end of the partition plate (6) are respectively cylindrical and hollow frustum-shaped, the lower end of the partition plate (6) is hermetically connected with the inner side wall of the feed hopper (4), a plurality of discharge openings are symmetrically formed in the side wall of the feed hopper (4), and the position of each discharge opening corresponds to the position of the partition plate (6).
4. The plastic spoon injection molding process according to claim 1, wherein each mold locking device comprises a sliding seat (14) installed on the upper surface of the processing platform (12), a second motor is slidably arranged on each sliding seat (14), a lead screw (11) is fixedly connected to each sliding seat through an output shaft of the second motor, a pressurizing block (15) is installed on each lead screw (11), and each pressurizing block (15) is L-shaped and corresponds to the position of the first steel plate (16).
5. The injection molding process of the plastic spoon as claimed in claim 1, wherein the processing platform (12) is further symmetrically provided with a plurality of transmission mechanisms, each transmission mechanism comprises an electric push rod arranged on the processing platform (12), each electric push rod is fixedly connected with a material carrying disc (33), each material carrying disc (33) is coaxially provided with an annular groove (34) and a cylindrical groove (35), the corresponding cylindrical groove (35) is located on the inner side of the annular groove (34), and the diameter of each annular groove (34) is larger than that of any upper mold (24).
6. A plastic scoop injection molding process according to claim 1, wherein a plurality of soft magnetic sheets (5) are arranged around the inner side wall of the feeding hopper (4), and each soft magnetic sheet (5) is located between the partition plate (6) and the feeding pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911194401.4A CN110815718B (en) | 2019-11-28 | 2019-11-28 | Injection molding process of plastic spoon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911194401.4A CN110815718B (en) | 2019-11-28 | 2019-11-28 | Injection molding process of plastic spoon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110815718A CN110815718A (en) | 2020-02-21 |
| CN110815718B true CN110815718B (en) | 2021-05-07 |
Family
ID=69542981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911194401.4A Expired - Fee Related CN110815718B (en) | 2019-11-28 | 2019-11-28 | Injection molding process of plastic spoon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110815718B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213618075U (en) * | 2020-11-03 | 2021-07-06 | 台州宽源家居有限公司 | Modified polylactic acid biodegradable plastic knife, fork and spoon injection molding mold |
| CN116285094B (en) * | 2022-11-30 | 2024-01-02 | 连云港酷美包装有限公司 | Production process of environment-friendly PP plastic packaging box |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4047892B2 (en) * | 2006-03-23 | 2008-02-13 | ファナック株式会社 | Molding device for injection molding machine |
| JP2012189274A (en) * | 2011-03-11 | 2012-10-04 | Panasonic Corp | Heating cooker |
| CN102974541A (en) * | 2012-11-28 | 2013-03-20 | 蚌埠鑫源石英材料有限公司 | Positive-pressure grading method for ultrafine powder |
| CN207576951U (en) * | 2017-11-10 | 2018-07-06 | 无锡宇能选煤机械厂 | Totally-enclosed screw path type coal picker |
| CN108247944A (en) * | 2018-01-17 | 2018-07-06 | 昆山欣斯特机械有限公司 | A kind of vertical four work position rotation tables injection molding machine |
| CN109049493A (en) * | 2018-08-22 | 2018-12-21 | 东莞市圣荣自动化科技有限公司 | It is a kind of with barrel can high low adjustment vertical injection molding machine |
| CN209454037U (en) * | 2019-01-24 | 2019-10-01 | 叶大威 | A kind of plastics spoon process equipment |
| CN209504740U (en) * | 2019-01-25 | 2019-10-18 | 大连金上隆化工有限公司 | A kind of feeding device for injection moulding machine |
| CN110421779B (en) * | 2019-06-28 | 2021-02-09 | 安徽省腾越铝塑有限公司 | Efficient die-closing vertical injection molding mechanism and working method thereof |
-
2019
- 2019-11-28 CN CN201911194401.4A patent/CN110815718B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN110815718A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110815718B (en) | Injection molding process of plastic spoon | |
| CN213260726U (en) | Multistation injection molding machine for polymer rubber and plastic | |
| CN110091463A (en) | Injection moulding method and die device | |
| CN114750369A (en) | Efficient injection mold | |
| CN110815717A (en) | Vertical type insertion injection molding die structure for batch plastic spoons | |
| CN112475258A (en) | Injection molding system convenient to adjust | |
| CN110936547B (en) | Injection molding machine with adjustable screw spacing and working method thereof | |
| CN115122579A (en) | Mold and method for processing and forming automotive plastic interior trim part | |
| CN114571667A (en) | Injection molding process for degradable plastic packaging box | |
| CN212888677U (en) | Injection mold is used in working of plastics product processing with automatic ejecting structure | |
| CN211672271U (en) | A ejecting structure that is used for chocolate shaping drawing of patterns of chocolate production | |
| CN113001885A (en) | Mould for injection molding of plastic water cup | |
| CN113290773B (en) | Injection molding machine | |
| CN113306083A (en) | Full-automatic forming equipment for electronic component shell | |
| CN214229638U (en) | Rolling forming die for baking food | |
| CN111331752A (en) | Discharging structure of plastic extruder | |
| CN214026936U (en) | Injection mold is used in garbage bin production | |
| CN117087057B (en) | Preparation method and device for multi-type resin co-molded product | |
| CN210999731U (en) | Injection molding machine with uniform ejection mechanism | |
| CN219583314U (en) | Plastic particle preheating and scattering device for blow molding machine | |
| CN219311728U (en) | Plastic particle melting equipment | |
| CN114750453B (en) | Tea ball secondary pressure maintaining forming device | |
| CN220482462U (en) | Injection mold of plug | |
| CN217570767U (en) | Casting mold convenient for automatic sampling | |
| CN114619262B (en) | Ornament reverse mould production line and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210421 Address after: 318020, Zhejiang province Taizhou Huangyan District Jiangkou Street Golden Hill Village (Jiangkou small park) Applicant after: Zhejiang Baide Plastics Co.,Ltd. Address before: 432200 Wangjiahe Dabi village, Huangpi District, Wuhan City, Hubei Province Applicant before: WUHAN SHENGXIANG PLASTIC PRODUCTS Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |