CN114536660B - Injection molding machine capable of preventing residual materials in material conveying channel - Google Patents
Injection molding machine capable of preventing residual materials in material conveying channel Download PDFInfo
- Publication number
- CN114536660B CN114536660B CN202210137532.4A CN202210137532A CN114536660B CN 114536660 B CN114536660 B CN 114536660B CN 202210137532 A CN202210137532 A CN 202210137532A CN 114536660 B CN114536660 B CN 114536660B
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- temporary storage
- plastic particles
- electronic scale
- storage barrel
- injection molding
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Classifications
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- 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
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention relates to the technical field of injection molding machines, in particular to an injection molding machine for preventing residual materials in a material conveying channel, which comprises a machine case, wherein a heating chamber is arranged on one side of the upper surface of the machine case, a vertically arranged feeding pipe is arranged on the surface of a material conveying cylinder of a second screw conveyer, an electronic scale base is arranged on the upper side of the feeding pipe, an electronic scale tray is arranged on the upper surface of the electronic scale base, a mounting opening is formed on the upper surface of the electronic scale tray, a temporary storage cylinder for temporarily storing plastic particles is arranged in the mounting opening, a first screw conveyer discharging end is arranged right above the temporary storage cylinder, and a first screw conveyer feeding end is arranged on the lower surface of a storage bin, and the injection molding machine has the following beneficial effects: the method realizes the adjustment of the amount of plastic particles conveyed into a heating chamber according to the amount of single-output molten plastic raw materials, avoids solidification of the molten plastic raw materials remained in a conveying channel in an injection molding machine due to long-time waiting, and prevents the conveying channel in the injection molding machine from being blocked.
Description
Technical Field
The invention relates to an injection molding machine for preventing residual materials in a material conveying channel, and belongs to the technical field of injection molding machines.
Background
Injection molding machines are also known as injection molding machines or injection molding machines. It is a main forming equipment for making thermoplastic plastics or thermosetting plastics into various shaped plastic products by using plastic forming mould. The injection molding machine heats the plastic, applies high pressure to the molten plastic, and injects the molten plastic to fill the mold cavity. At present, when plastic particles are heated by an injection molding machine to enable the plastic particles to form a molten state, the amount of the plastic particles conveyed into a heating chamber by a screw conveyor in the injection molding machine cannot be controlled according to the requirement, the amount of the molten plastic raw material is difficult to adjust according to single output, the molten plastic raw material is easy to remain in a conveying channel in the injection molding machine, the residual plastic raw material is easy to solidify in a long-time waiting process, and the conveying channel in the injection molding machine is blocked.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an injection molding machine for preventing residual materials in a material conveying channel so as to solve the problems in the background art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides an injection molding machine of surplus material is remained in prevention conveying passageway, includes quick-witted case, heating chamber is installed to quick-witted case upper surface one side, the second screw conveyer that is used for carrying plastic granules to the heating chamber is installed to heating chamber one end, the conveying section of thick bamboo surface mounting of second screw conveyer has the inlet pipe of vertical arrangement, the inlet pipe upside is equipped with the electronic scale base, electronic scale base and heating chamber fixed connection, electronic scale base upper surface mounting has the electronic scale tray, the mounting hole has been seted up to electronic scale tray upper surface, install the section of thick bamboo of keeping in that is used for keeping in plastic granules in the mounting hole, the feed opening that is aligned with last mounting hole, inlet pipe is seted up to electronic scale base upper surface, the shutoff piece that can open and close with plastic granules restriction in the section of thick bamboo is installed to the lower part position in the section of keeping in, be equipped with first screw conveyer discharge end directly over the section of thick bamboo, first screw conveyer feed end is installed at the feed bin lower surface.
Specifically, feed bin surface fixedly connected with extension board, the extension board is vertical form and arranges and extension board lower extreme and quick-witted case fixed connection.
Specifically, the cone-shaped bucket with the upper wide part and the lower narrow part is fixedly connected with the lower end of the temporary storage barrel, the cone-shaped bucket and the temporary storage barrel are of an integrated structure, and the lower end of the cone-shaped bucket extends into the discharging opening.
Specifically, the upper end of the feeding pipe is fixedly connected with a funnel with a wide upper part and a narrow lower part, and the upper end of the funnel is contacted with the base of the electronic scale.
Specifically, the shutoff piece includes first shrouding and second shrouding, first shrouding, second shrouding are semicircle structure, the one end that the second shrouding was kept away from to first shrouding and the one end that the second shrouding was kept away from to the second shrouding all are articulated to be connected with the section of thick bamboo of keeping in through the hinge, one side that the first shrouding lower surface is close to the second shrouding rotates and installs first electric putter, first electric putter cylinder body end is connected with the section of thick bamboo rotation of keeping in, one side that the second shrouding lower surface is close to first shrouding rotates and installs the second electric putter, second electric putter cylinder body end is connected with the section of thick bamboo rotation of keeping in, first electric putter and second electric putter symmetrical arrangement, first electric putter input, second electric putter input pass through data line and PLC controller output electric connection, the PLC controller is installed in the electric cabinet, the electric cabinet is installed in one side that the heating chamber upper surface is kept away from, PLC controller input passes through data line and electronic scale output electric connection, first screw conveyer, second screw conveyer input all pass through data line and PLC output electric connection.
Specifically, the installing port upside is equipped with the ring platform, ring platform and installing port concentric arrangement and ring platform and electronic scale tray fixed connection, the section of thick bamboo lower extreme that keeps in runs through the ring platform and extends to in the installing port, ring platform upside is equipped with the ring limit, the ring limit cover is established on the section of thick bamboo of keeping in and with a section of thick bamboo fixed connection that keeps in, the ring limit is through a plurality of connecting screws and ring platform fixed connection.
Specifically, a plurality of recesses have been seted up to ring platform internal surface in annular equidistance, insert the grafting piece in the recess, the grafting piece facing the one side processing of keeping in a section of thick bamboo has with keeping in a section of thick bamboo surface matched with arcwall face, the screw hole with connecting screw matched with has been seted up to the grafting piece upper surface, a plurality of communicating apertures with the recess have been seted up to ring platform upper surface in annular equidistance, a plurality of perforation with aperture one-to-one have been seted up to ring upper surface in annular equidistance, threaded connection is in the screw hole after the connecting screw passes perforation, aperture.
Specifically, one side of the lower surface of the electronic scale base, which is close to the heating chamber, is fixedly connected with a connecting seat, and the other end of the connecting seat is fixedly connected with the heating chamber.
The invention has the beneficial effects that:
1. according to the injection molding machine for preventing residual materials in the material conveying channel, when plastic particles are conveyed into the heating chamber, according to the amount of the plastic particles required by a single injection molding product, the first screw conveyor is utilized to convey the plastic particles in the storage bin into the temporary storage barrel, the electronic scale is used for weighing the plastic particles in the temporary storage barrel, after the weight of the plastic particles in the temporary storage barrel meets the amount required by the single injection molding product, the plastic particles are stopped to be conveyed into the temporary storage barrel, then the first electric push rod and the second electric push rod are controlled to shrink, at the moment, the first sealing plate is separated from the second sealing plate, so that the plastic particles in the temporary storage barrel fall into the feeding pipe through the blanking opening, the second screw conveyor is utilized to convey the plastic particles in the feeding pipe into the heating chamber for heating and melting, the amount of the plastic particles conveyed into the heating chamber is adjusted according to the amount of the single output molten plastic raw material, solidification of the molten plastic raw materials remained in the material conveying channel in the injection molding machine is avoided, and the material conveying channel in the injection molding machine is prevented from being blocked due to long-time waiting.
2. According to the injection molding machine for preventing residual materials in the material conveying channel, the annular table matched with the annular edge is arranged on the electronic scale tray, so that the wall thickness of the contact part of the electronic scale tray and the annular edge is locally increased, the thickness of the electronic scale tray is not required to be integrally tidied, the production cost of the electronic scale tray is reduced, the connecting screw penetrates through the annular edge to be in threaded connection with the annular table, the connection between the temporary storage cylinder and the electronic scale tray is completed, and the temporary storage cylinder and the electronic scale tray are convenient to disassemble and assemble.
3. According to the injection molding machine for preventing residual materials in the material conveying channel, the threaded holes matched with the connecting screws are machined in the inserting blocks, the inserting blocks are inserted into the grooves in the annular table, after the temporary storage barrel is inserted into the annular table, the arc-shaped surfaces on the inserting blocks are contacted with the surface of the temporary storage barrel, the inserting blocks are limited in the grooves under the limitation of the temporary storage barrel, the connecting screws penetrate through the annular edges and are screwed into the threaded holes, so that the assembly of the threaded parts matched with the connecting screws and the annular table is realized, when the threaded holes are damaged due to wrong threads and the like, the inserting blocks are replaced, the replacement quantity of parts is reduced, and the maintenance cost is reduced.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of an injection molding machine for preventing residual material remaining in a material conveying channel according to the present invention;
FIG. 2 is an enlarged view of the position A of an injection molding machine for preventing residual material remaining in a material conveying channel according to the present invention;
FIG. 3 is a schematic diagram showing the assembly of a temporary storage cylinder, a feed pipe, an electronic scale tray and an electronic scale base in an injection molding machine for preventing residual materials in a material conveying channel;
FIG. 4 is an enlarged view of FIG. 3 at B;
FIG. 5 is a perspective view of the annular rim of an injection molding machine for preventing residual material remaining in a material transfer passage according to the present invention;
FIG. 6 is a schematic diagram showing the assembly of an insert block and a ring table in an injection molding machine for preventing residual material remaining in a material conveying channel according to the present invention;
FIG. 7 is a cross-sectional view of a ring table of an injection molding machine for preventing residual material remaining in a material transfer passage according to the present invention;
in the figure: 1. the device comprises a case, 2, a heating chamber, 3, a storage bin, 4, a first screw conveyer, 5, a support plate, 6, an electric cabinet, 7, a second screw conveyer, 8, a temporary storage cylinder, 9, a connecting screw, 10, a ring table, 11, an electronic scale tray, 12, an electronic scale base, 13, a feeding pipe, 14, a connecting seat, 15, a ring edge, 16, an installation opening, 17, a cone hopper, 18, a blanking opening, 19, a funnel, 20, a first sealing plate, 21, a first electric push rod, 22, a second sealing plate, 23, a second electric push rod, 24, a perforation, 25, a small hole, 26, a plug block, 27, a threaded hole, 28 and a groove.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1, 2 and 3, the present invention provides a technical solution: the utility model provides an injection molding machine of surplus material is remained in prevention conveying passageway, including quick-witted case 1, heating chamber 2 is installed to quick-witted case 1 upper surface one side, the second screw conveyer 7 that is used for carrying plastic granules to heating chamber 2 is installed to heating chamber 2 one end, the conveying cylinder surface mounting of second screw conveyer 7 has vertical layout's inlet pipe 13, the inlet pipe 13 upside is equipped with electronic scale base 12, one side fixedly connected with connecting seat 14 that electronic scale base 12 lower surface is close to heating chamber 2, the connecting seat 14 other end and heating chamber 2 fixed connection, connecting seat 14 plays the effect of connecting electronic scale base 12 and heating chamber 2, inlet pipe 13 upper end fixedly connected with goes up wide hopper 19 that narrow down, hopper 19 upper end and electronic scale base 12 contact, hopper 19 and inlet pipe 13 combined action play the effect of supporting electronic scale base 12, hopper 19 increases the scope of inlet pipe 13 feed inlet simultaneously.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, an electronic scale tray 11 is mounted on the upper surface of an electronic scale base 12, a mounting opening 16 is formed in the upper surface of the electronic scale tray 11, a temporary storage barrel 8 for temporarily storing plastic particles is mounted in the mounting opening 16, the mounting opening 16 provides a mounting space for the temporary storage barrel 8, the upper end and the lower end of the temporary storage barrel 8 are both in an opening shape, a blanking opening 18 aligned with the upper mounting opening 16 and a feeding pipe 13 is formed in the upper surface of the electronic scale base 12, a conical hopper 17 with a wide upper part and a narrow lower part is fixedly connected to the lower end of the temporary storage barrel 8, the conical hopper 17 and the temporary storage barrel 8 are of an integrated structure, the lower end of the conical hopper 17 extends into the blanking opening 18, and the conical hopper 17 guides the plastic particles falling from the temporary storage barrel 8 into the feeding pipe 13.
Referring to fig. 1, 2, 3 and 4, a first sealing plate 20 and a second sealing plate 22 for limiting plastic particles in the temporary storage cylinder 8 are installed at the lower part in the temporary storage cylinder 8, the first sealing plate 20 and the second sealing plate 22 are of semicircular structures, one end of the first sealing plate 20 far away from the second sealing plate 22 and one end of the second sealing plate 22 far away from the first sealing plate 20 are hinged with the temporary storage cylinder 8 through hinges, a first electric push rod 21 is rotatably installed at one side of the lower surface of the first sealing plate 20 close to the second sealing plate 22, a cylinder end of the first electric push rod 21 is rotatably connected with the temporary storage cylinder 8, a second electric push rod 23 is rotatably installed at one side of the lower surface of the second sealing plate 22 close to the first sealing plate 20, the cylinder end of the second electric push rod 23 is rotatably connected with the temporary storage cylinder 8, the first electric push rod 21 and the second electric push rod 23 are symmetrically arranged, a first screw conveyer 4 discharging end is arranged right above the temporary storage cylinder 8, the feeding end of the first screw conveyor 21 is arranged on the lower surface of the storage bin 3, the supporting plate 5 is fixedly connected with the outer surface of the storage bin 3, the supporting plate 5 is vertically arranged, the lower end of the supporting plate 5 is fixedly connected with the machine case 1, the supporting plate 5 plays a role in supporting the storage bin 3, when plastic particles are conveyed into the heating chamber 2, according to the amount of the plastic particles required by single injection products, the plastic particles in the storage bin 3 are conveyed into the temporary storage barrel 8 by using the first screw conveyor 4, the electronic scale weighs the plastic particles in the temporary storage barrel 8, after the weight of the plastic particles in the temporary storage barrel 8 meets the amount required by single injection products, the plastic particles are stopped from being conveyed into the temporary storage barrel 8, then the first electric push rod 21 and the second electric push rod 23 are controlled to shrink, at the moment, the first sealing plate 20 and the second sealing plate 22 are separated, so that the plastic particles in the temporary storage barrel 8 fall into the feeding pipe 13 through the discharging opening 18, and the plastic particles in the feeding pipe 13 are conveyed into the heating chamber 2 by the second screw conveyor 7 to be heated and melted, so that the quantity of the plastic particles conveyed into the heating chamber 2 is adjusted according to the quantity of the single-output molten plastic raw material, solidification of the molten plastic raw material remained in a conveying channel in the injection molding machine due to long-time waiting is avoided, and the conveying channel in the injection molding machine is prevented from being blocked.
As an embodiment of the present invention: referring to fig. 1, fig. 2, fig. 3 and fig. 4, the input end of the first electric push rod 21 and the input end of the second electric push rod 23 are electrically connected with the output end of the PLC controller through data lines, the PLC controller is installed in the electric control box 6, the electric control box 6 is installed on one side of the upper surface of the cabinet 1 far away from the heating chamber 2, the input end of the PLC controller is electrically connected with the output end of the electronic scale through data lines, the input ends of the first screw conveyor 4 and the second screw conveyor 7 are electrically connected with the output end of the PLC controller through data lines, weight data of plastic particles are input into the PLC controller for a single time, the electronic scale weighs the plastic particles in the temporary storage barrel 8 and then transmits the data to the PLC controller, the PLC controller compares and calculates the received data with the set data, after the weight of the plastic particles in the temporary storage barrel 8 is the same as the set value, the PLC controller controls the first screw conveyor 4 to stop working, meanwhile, the PLC controller controls the first electric push rod 21 and the second electric push rod 23 to shrink, and the PLC controller controls the second screw conveyor 7 to work, automatic working is realized, and the automatic working is convenient to use in the intelligent high-end manufacturing.
As an embodiment of the present invention: referring to fig. 1 and 2, a ring table 10 is arranged on the upper side of a mounting opening 16, the ring table 10 and the mounting opening 16 are concentrically arranged, the ring table 10 is fixedly connected with an electronic scale tray 11, the lower end of a temporary storage barrel 8 penetrates through the ring table 10 and extends into the mounting opening 16, a ring edge 15 is arranged on the upper side of the ring table 10, the ring edge 15 is sleeved on the temporary storage barrel 8 and is fixedly connected with the temporary storage barrel 8, the ring edge 15 is fixedly connected with the ring table 10 through a plurality of connecting screws 9, the ring table 10 matched with the ring edge 15 is mounted on the electronic scale tray 11, the wall thickness of the contact part of the electronic scale tray 11 and the ring edge 15 is locally increased, the thickness of the electronic scale tray 11 does not need to be integrally tidied, the production cost of the electronic scale tray 11 is reduced, the connecting screws 9 penetrate through the ring edge 15 and the ring table 10 to be in threaded connection, the connection of the temporary storage barrel 8 and the electronic scale tray 11 is completed, and the temporary storage barrel 8 and the electronic scale tray 11 are convenient to disassemble and assemble and disassemble.
As an embodiment of the present invention: referring to fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7, a plurality of grooves 28 are formed in the inner surface of the ring table 10 at equal intervals in a ring shape, a plug-in block 26 is inserted into the grooves 28, an arc-shaped surface matched with the surface of the temporary storage barrel 8 is formed on one surface of the plug-in block 26 facing the temporary storage barrel 8, a plurality of small holes 25 communicated with the grooves 28 are formed in the upper surface of the ring table 10 at equal intervals in a ring shape, a plurality of through holes 24 corresponding to the small holes 25 are formed in the upper surface of the ring table 15 at equal intervals in a ring shape, the connecting screws 9 pass through the through holes 24 and the small holes 25 and are connected in the threaded holes 27 in a threaded manner, the threaded holes 27 matched with the connecting screws 9 are formed in the plug-in block 26, after the plug-in block 26 is inserted into the grooves 28 on the ring table 10, the arc-shaped surface of the plug-in block 26 is contacted with the surface of the temporary storage barrel 8 after the temporary storage barrel 8 is inserted into the ring table 10, the plug-in block 26 is limited in the grooves 28, the connecting screws 9 pass through the ring table 15, the threaded holes 27 are screwed into the threaded holes 27, and the threaded holes 27 are formed in the ring table 9, and the holes 27 are screwed into the ring table 9, and the joint block is replaced by the groove 26, and the number of the holes is reduced, and the number of the screw holes is reduced when the connecting screws 9 are replaced and the threaded holes 27 are matched with the ring table 10.
The specific embodiment is as follows: the method comprises the steps that weight data of plastic particles are input into a PLC controller for single addition, the electronic scale weighs the plastic particles in a temporary storage cylinder 8 and then transmits the data to the PLC controller, the PLC controller compares and calculates the received data with set data, after the weight of the plastic particles in the temporary storage cylinder 8 is the same as a set value, the PLC controller controls a first screw conveyer 4 to stop working, meanwhile, the PLC controller controls a first electric push rod 21 and a second electric push rod 23 to shrink, the PLC controller controls a second screw conveyer 7 to work, automatic working is achieved, the first screw conveyer 4 is used for conveying the plastic particles in a storage bin 3 into the temporary storage cylinder 8, the electronic scale weighs the plastic particles in the temporary storage cylinder 8, after the weight of the plastic particles in the temporary storage cylinder 8 meets the required amount of a single injection molding product, the plastic particles are stopped to be conveyed into the temporary storage cylinder 8, then the first electric push rod 21 and the second electric push rod 23 are controlled to shrink, at the moment, the first screw conveyer 20 and the second seal plate 22 are separated, the plastic particles in the temporary storage cylinder 8 fall into a 13 through a blanking port 18, the plastic particles in the temporary storage cylinder 7 are utilized for single injection molding product to be heated, and the plastic particles in the heating chamber 2 are prevented from being solidified, and the raw material is prevented from being conveyed into a heating chamber-like material channel by the heating chamber, and the plastic material is prevented from being solidified, and the raw material is prevented from being in a long time being conveyed into a heating chamber, and the injection molding machine is prevented from being solidified, and the raw material is in a material channel is heated, and the material is heated.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. An injection molding machine for preventing residual materials in a material conveying channel, which is characterized by comprising the following steps:
the method comprises the steps that weight data of plastic particles are input into a PLC (programmable logic controller) for single addition, an electronic scale weighs the plastic particles in a temporary storage cylinder and then transmits the data to the PLC, the PLC compares and calculates the received data with set data, when the weight of the plastic particles in the temporary storage cylinder is the same as a set value, the PLC controls a first screw conveyer to stop working, meanwhile, the PLC controls the first electric push rod and a second electric push rod to shrink, and controls the second screw conveyer to work, so that automatic work is realized, the first screw conveyer is utilized to convey the plastic particles in a bin into the temporary storage cylinder, the electronic scale weighs the plastic particles in the temporary storage cylinder, after the weight of the plastic particles in the temporary storage cylinder meets the required amount of a single injection molding product, the plastic particles are stopped to be conveyed into the temporary storage cylinder, then the first electric push rod and the second electric push rod are controlled to shrink, at the moment, the first and the second seal plate are separated, so that the plastic particles in the temporary storage cylinder fall into a feeding pipe through a blanking port, and are conveyed into a heating chamber to be heated and melted by the second screw conveyer, the plastic particles in the feeding pipe are heated and melted, the plastic particles in the feeding port are conveyed into a heating chamber according to the single output, the plastic particles are prevented from being solidified, and the plastic particles in the injection molding machine is prevented from being blocked by the plastic channel from being solidified due to the fact that the plastic channel is long-time is prevented from being caused by the plastic particles in the injection molding machine;
the injection molding machine comprises a machine case, wherein a heating chamber is arranged on one side of the upper surface of the machine case, a second screw conveyor for conveying plastic particles into the heating chamber is arranged at one end of the heating chamber, a feeding pipe which is vertically arranged is arranged on the surface of a feeding cylinder of the second screw conveyor, an electronic scale base is arranged on the upper side of the feeding pipe, a connecting seat is fixedly connected to one side, close to the heating chamber, of the lower surface of the electronic scale base, the other end of the connecting seat is fixedly connected with the heating chamber, the connecting seat plays a role of connecting the electronic scale base with the heating chamber, a funnel with a wide upper end and a narrow lower end is fixedly connected to the upper end of the feeding pipe, the upper end of the funnel contacts with the electronic scale base, the funnel and the feeding pipe jointly act to support the electronic scale base, and meanwhile the funnel increases the range of a feeding hole of the feeding pipe;
the electronic scale is characterized in that an electronic scale tray is mounted on the upper surface of the electronic scale base, a mounting opening is formed in the upper surface of the electronic scale tray, a temporary storage barrel for temporarily storing plastic particles is mounted in the mounting opening, a mounting space is provided for the temporary storage barrel by the mounting opening, the upper end and the lower end of the temporary storage barrel are both in an opening shape, a blanking opening aligned with the upper mounting opening and the feeding pipe is formed in the upper surface of the electronic scale base, a conical hopper with a wide upper part and a narrow lower part is fixedly connected to the lower end of the temporary storage barrel, the conical hopper and the temporary storage barrel are of an integrated structure, the lower end of the conical hopper extends into the blanking opening, and the conical hopper guides the plastic particles falling from the temporary storage barrel into the feeding pipe;
the lower part in the temporary storage cylinder is provided with a first sealing plate and a second sealing plate which are used for limiting plastic particles in the temporary storage cylinder, the first sealing plate and the second sealing plate are of semicircular structures, one end of the first sealing plate, which is far away from the second sealing plate, and one end of the second sealing plate, which is far away from the first sealing plate, are hinged with the temporary storage cylinder through hinges, one side of the lower surface of the first sealing plate, which is close to the second sealing plate, is rotatably provided with a first electric push rod, the cylinder body end of the first electric push rod is rotatably connected with the temporary storage cylinder, one side of the lower surface of the second sealing plate, which is close to the first sealing plate, is rotatably provided with a second electric push rod, the cylinder body end of the second electric push rod is rotatably connected with the temporary storage cylinder, the first electric push rod and the second electric push rod are symmetrically arranged, a first screw conveyor discharge end is arranged right above the temporary storage cylinder, a first screw conveyor feed end is arranged on the lower surface of a feed bin, and a support plate is fixedly connected to the outer surface of the feed bin, the support plate is vertically arranged, the lower end of the support plate is fixedly connected with the machine case, the support plate plays a role of supporting the bin, when plastic particles are conveyed into the heating chamber, according to the quantity of plastic particles required by a single injection molding product, the plastic particles in the bin are conveyed into the temporary storage barrel by using the first screw conveyor, the electronic scale weighs the plastic particles in the temporary storage barrel, when the weight of the plastic particles in the temporary storage barrel meets the quantity required by the single injection molding product, the conveying of the plastic particles into the temporary storage barrel is stopped, then the first electric push rod and the second electric push rod are controlled to shrink, at the moment, the first sealing plate is separated from the second sealing plate, so that the plastic particles in the temporary storage barrel fall into the feeding pipe through the blanking opening, the plastic particles in the feeding pipe are conveyed into the heating chamber by using the second screw conveyor to be heated and melted, the quantity of the plastic particles conveyed into the heating chamber is adjusted according to the quantity of the single output molten plastic raw materials, the molten plastic raw material remained in the material conveying channel in the injection molding machine is prevented from being solidified due to long-time waiting, and the material conveying channel in the injection molding machine is prevented from being blocked;
the first electric push rod input end and the second electric push rod input end are electrically connected with the PLC controller output end through data lines, the PLC controller is arranged in the electric cabinet, the electric cabinet is arranged on one side of the upper surface of the machine case, which is far away from the heating chamber, the PLC controller input end is electrically connected with the electronic scale output end through data lines, the first screw conveyer and the second screw conveyer input end are electrically connected with the PLC controller output end through data lines, the weight data of plastic particles are input into the PLC controller for a single time, the electronic scale weighs the plastic particles in the temporary storage barrel and then transmits the data to the PLC controller, the PLC controller compares and calculates the received data with the set data, when the weight of the plastic particles in the temporary storage barrel is the same as the set value, the PLC controller controls the first screw conveyer to stop working, meanwhile, the PLC controller controls the first electric push rod and the second electric push rod to shrink, and the PLC controller controls the second screw conveyer to work, so that automatic work is realized and the plastic particles are convenient to use in intelligent high-end manufacturing;
the upper side of the mounting port is provided with a ring table which is concentrically arranged with the mounting port and fixedly connected with the electronic scale tray, the lower end of the temporary storage barrel penetrates through the ring table to extend into the mounting port, the upper side of the ring table is provided with a ring edge which is sleeved on the temporary storage barrel and fixedly connected with the temporary storage barrel, the ring edge is fixedly connected with the ring table through a plurality of connecting screws, the ring table matched with the ring edge is arranged on the electronic scale tray, the wall thickness of the contact part between the electronic scale tray and the ring edge is locally increased, the thickness of the electronic scale tray is not required to be wholly tidy, the production cost of the electronic scale tray is reduced, the connecting screws penetrate through the ring edge and the ring table to be in threaded connection, the temporary storage barrel is connected with the electronic scale tray, and the temporary storage barrel and the electronic scale tray are convenient to disassemble and assemble;
the inner surface of the annular platform is provided with a plurality of grooves at equal intervals, the grooves are internally provided with plug blocks, one surface of each plug block facing the temporary storage barrel is provided with an arc surface matched with the surface of the temporary storage barrel, the upper surface of each plug block is provided with a threaded hole matched with a connecting screw, the upper surface of the annular platform is provided with a plurality of small holes communicated with the grooves at equal intervals, the upper surface of the annular platform is provided with a plurality of through holes corresponding to the small holes one by one at equal intervals, the connecting screw passes through the through holes and the small holes and is connected with the threaded holes in a threaded manner, the threaded holes matched with the connecting screw are processed on the plug blocks, the plug blocks are inserted into the grooves on the annular platform, the arc surface on the plug blocks is contacted with the surface of the temporary storage barrel after the temporary storage barrel is inserted into the annular platform, the plug blocks are limited in the grooves under the limitation of the temporary storage barrel, the connecting screw passes through the annular edge and is screwed into the threaded holes, the assembly of the threaded parts matched with the connecting screw and the annular platform is realized, when the threaded holes are damaged due to wrong threads and the like, the replacement of the plug blocks can be used for reducing the replacement quantity of parts, and reducing the maintenance cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210137532.4A CN114536660B (en) | 2022-02-15 | 2022-02-15 | Injection molding machine capable of preventing residual materials in material conveying channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN114536660A (en) | 2022-05-27 |
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