CN112223648B - Centralized feeding system for granular materials - Google Patents
Centralized feeding system for granular materials Download PDFInfo
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- CN112223648B CN112223648B CN202011027732.1A CN202011027732A CN112223648B CN 112223648 B CN112223648 B CN 112223648B CN 202011027732 A CN202011027732 A CN 202011027732A CN 112223648 B CN112223648 B CN 112223648B
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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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/02—Dispensing from vessels, e.g. hoppers
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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
- B29C45/1808—Feeding measured doses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Robotics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a centralized feeding system for granular materials, wherein a material tank is communicated with an injection molding machine through a material centralized collecting device, the material centralized collecting device is provided with a plurality of centralized collecting pipes, the top of each centralized collecting pipe is provided with a plurality of collecting ports along the axial direction of the centralized collecting pipe, a discharging pipe arranged at the bottom of the material tank is communicated with a material distributing and feeding port of a material distributing tank, the material distributing tank is communicated with a plurality of material distributing discharging pipes, the material distributing discharging pipes are respectively communicated with corresponding collecting ports of the centralized collecting pipes through material conveying pipes A, and the centralized collecting pipes are respectively communicated with hoppers of the corresponding injection molding machines through material conveying pipes B. According to the granular material centralized feeding system, materials extracted from the material tank can completely enter the hopper of the corresponding injection molding machine, the feeding accuracy of each material can be ensured, and the feeding efficiency of the materials can be improved.
Description
Technical Field
The invention relates to the technical field of centralized feeding of granular materials, in particular to a centralized feeding system of granular materials.
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 device is divided into vertical type, horizontal type and full-electric type. The injection molding machine heats the plastic, applies high pressure to the molten plastic, and injects the molten plastic to fill the mold cavity.
The injection molding machine sucks various granular materials into a hopper of the injection molding machine for mixing and then injection molding. Because different injection molding machines of a production enterprise produce different products, different products are different in material proportion to different materials, if the proportion is manually carried out, the efficiency is extremely low, and the accuracy of the material proportion cannot be guaranteed. Therefore, a centralized feeding system is needed for feeding, and the material tanks of all materials are respectively fed to each injection molding machine through the centralized feeding system.
However, the inventor finds that the current centralized feeding system generally utilizes the negative pressure generated by the exhaust fan to convey the material in the material tank into the hopper of the injection molding machine, the negative pressure acting force is constant, the extraction speed of the material from the material tank is constant, and therefore the conveying amount of the material can be determined through time. However, this principle of material feeding requires that the material drawn from the material tank is fully fed into the hopper of the injection molding machine. However, in the prior material feeding system, materials may remain in a conveying pipeline in use, and similar to the technical scheme with the publication number of CN209209528U, since a plurality of devices need to be fed to the same material tank, the materials which should be originally conveyed to one device are conveyed to the other device due to the fact that the materials remain in the conveying pipeline, and the material proportions of the plurality of devices are not satisfactory.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provide a granular material centralized feeding system, ensure that the materials extracted from a material tank can completely enter a hopper of a corresponding injection molding machine, ensure the feeding accuracy of each material and improve the feeding efficiency of the materials; the vertical pipe drives the horizontal pipe to rotate, so that when materials are required to be fed according to different injection molding machines at different times, the horizontal pipe can automatically rotate to a corresponding material distributing and discharging pipe in time under the action of wind power generated when the exhaust fan pumps wind, and the materials blown out of the horizontal pipe directly enter a centralized material collecting pipe communicated with the injection molding machines through the corresponding material distributing and discharging pipe; the method avoids the defect of materials entering the hopper of the injection molding machine caused by the fact that the materials remain in the distributing tank, and further the proportion of the materials in the hopper of the injection molding machine is not consistent with the process requirement, and further influences the quality of products, by the action of the vertical sheets A and B, the principle of a wind direction tester is utilized, thereby further improving the rotation action effect of wind force of an exhaust fan on a vertical pipe and a horizontal pipe, ensuring that the horizontal pipe corresponds to a corresponding distributing discharging pipe, further ensuring the accuracy of material supply, by the action of a distributing pipe, the distributing pipe can enter the distributing discharging pipe, ensuring that the materials in the horizontal pipe can directly enter the distributing discharging pipe, simultaneously being convenient for the rotation of the horizontal pipe and the vertical pipe, and further having a certain reduction effect on the discharging speed of the materials, reducing the impact force of the materials on the conveying pipe due to the arrangement of a bent pipe, and avoiding the fact that the materials discharged from the horizontal pipe form buffer transition under the wind force effect, the speed always generates a large impact force on the conveying pipe, the pipe opening of the distribution pipe is opened by the action of the inclined stay rod, the pipe opening of the distribution pipe is relatively fixed, the material can be thrown out of the distribution pipe due to the fact that the pipe opening of the distribution pipe is prevented from swinging back and forth, the material can be guaranteed to enter the distribution pipe completely, the material can be prevented from being excessively influenced by the distribution pipe, the material discharging speed is too low, the material can be accumulated, the positioning of the annular sealing hoop and the connection of the pipe opening of the bent pipe are facilitated by the action of the annular connecting notch, the coaxiality of the bent pipe and the distribution pipe is further guaranteed by the action of the connecting convex ring and the connecting annular connecting groove, the material is prevented from accumulating at the position of the bent pipe and the distribution pipe, the material in the transverse pipe and the conical arc surface are matched through the conical arc surface structure of the bottom edge of the distribution pipe, the material in the transverse pipe can enter the distribution pipe completely, the material in the transverse pipe can be prevented from entering the distribution pipe conveniently, the material in the transverse pipe can be prevented from being discharged from the pipe opening at one side of the distribution pipe, the distribution pipe in the distribution pipe can be guaranteed to be completely backflow in the material in the injection molding machine, and the material in the injection molding machine can be guaranteed.
The technical scheme adopted by the invention is as follows:
The particle material centralized feeding system comprises a plurality of material tanks and a plurality of injection molding machines, wherein the material tanks are communicated with the injection molding machines through a material centralized collecting device, the material centralized collecting device is provided with a plurality of centralized collecting pipes, a plurality of collecting ports are arranged at the top of each centralized collecting pipe along the axial direction of the centralized collecting pipe, the number of the centralized collecting pipes is greater than or equal to that of the injection molding machines, the number of the collecting ports of each centralized collecting pipe is greater than or equal to that of the material tanks, the discharging pipes arranged at the bottoms of the material tanks are communicated with the material distributing inlet of the material distributing tanks, the material distributing tanks are communicated with a plurality of material distributing discharging pipes, the number of the material distributing discharging pipes is matched with that of the centralized collecting pipes, the material distributing discharging pipes are respectively communicated with the corresponding collecting ports of the centralized collecting pipes through material conveying pipes A, the centralized collecting pipes are respectively communicated with hoppers of the corresponding injection molding machines through material conveying pipes B, the discharging pipes are also provided with bypass pipes communicated with the outside atmosphere, the discharging pipes are respectively communicated with the material distributing tanks through bypass pipes and three-way joints, the material distributing pipes are respectively arranged at the bottom of the material collecting pipes and the material distributing pipes, the material distributing pipes are respectively communicated with the material distributing pipes through the material conveying pipes and the material distributing pipes, and the material distributing pipes are respectively arranged in the material distributing pipes and the material distributing pipes are respectively communicated with the material conveying pipes through the material conveying pipes.
The invention further improves the scheme that the material distributing and discharging pipes are uniformly distributed at the bottom of the side wall of the material distributing tank and are communicated with the inside of the material distributing tank, a vertical pipe is rotationally connected at the axis of the inside of the material distributing tank around the axis of the material distributing tank, the top of the vertical pipe is communicated with the discharging pipe through a feeding connecting pipe, the bottom end of the vertical pipe is sealed, the bottom of the side wall of the vertical pipe is communicated with a transverse pipe, one end of the transverse pipe far away from the vertical pipe extends to the side wall of the material distributing tank, and when the transverse pipe corresponds to the material distributing and discharging pipe under the action of the vertical pipe, the transverse pipe is coaxial with the corresponding material distributing and discharging pipe, and the inner diameter of the material distributing and discharging pipe is matched with the outer diameter of the transverse pipe.
In a still further improvement of the invention, the feeding connecting pipe is fixedly connected to the top of the material distributing tank, and the feeding connecting pipe penetrates the top of the material distributing tank downwards.
According to a further improved scheme, the bottom of the feeding connecting pipe is communicated with a coaxially arranged rotating sleeve, the top end of the vertical pipe is fixedly connected with the rotating sleeve in a coaxial sealing mode, and the bottom end of the vertical pipe is rotationally connected with the axis of the tank bottom of the distributing tank through a bearing.
According to a further improved scheme, a vertical plate B is arranged on one side of the side wall of the vertical pipe, which corresponds to the transverse pipe, a vertical plate A is arranged on one side of the side wall of the vertical pipe, which is opposite to the transverse pipe, the axes of the vertical plate A, the vertical plate B and the transverse pipe are positioned in the same vertical plane passing through the axis of the vertical pipe, the edge of the vertical plate A, which is far away from the vertical pipe, extends to the inner wall of the distributing tank, and the vertical plate A and the vertical plate B form a guiding wind plate of the transverse pipe.
According to the invention, the material distributing and discharging pipe is inclined downwards along the direction away from the axis of the material distributing tank, a conical cambered surface is arranged at the edge position of the tank bottom of the material distributing tank, the conical cambered surface is flush with the bottom of the inner wall of the material distributing and discharging pipe, and the conical cambered surface is attached to the bottom of the transverse pipe.
According to a further improved scheme, one end of the transverse pipe far away from the vertical pipe is sleeved with a cloth pipe, the outer diameter of the cloth pipe is matched with that of the transverse pipe, when the transverse pipe corresponds to the corresponding material distributing discharging pipe coaxially, and air flow enters the material distributing discharging pipe from the transverse pipe, the cloth pipe stretches into the material distributing discharging pipe.
According to a further improved scheme, one end of the material distributing and discharging pipe, which is far away from the material distributing tank, is communicated with the material conveying pipe A through a bent pipe, the bent pipe is connected with the material distributing and discharging pipe, the bent pipe is bent upwards and then downwards to form an S-shaped elbow, two ends of the outer side wall of the bent pipe and one end of the outer side wall of the material distributing and discharging pipe, which faces the bent pipe, are respectively provided with corresponding annular connection notches, and the material distributing and discharging pipe is fixedly connected with the bent pipe through an annular sealing hoop.
According to a further improved scheme, an annular connecting groove is formed in one end, facing the bent pipe, of the inner side wall of the material distributing discharging pipe, and a connecting convex ring which is connected with the annular connecting groove in a matching mode is arranged at one end, connected with the material distributing discharging pipe, of the bent pipe.
According to a further improved scheme, a plurality of inclined supporting rods are uniformly arranged on the inner wall of the connecting convex ring, extend towards the material distributing discharging pipe respectively and incline towards the axis of the material distributing discharging pipe along the direction pointing to the material distributing discharging pipe, one ends of the inclined supporting rods extending out of the bent pipe are fixedly connected to the axis of the material distributing discharging pipe, and when the bent pipe is fixed with the material distributing discharging pipe and the material distributing pipe extends into the corresponding material distributing discharging pipe, one ends of the inclined supporting rods extending out of the pipe orifice of one end of the material distributing pipe far away from the transverse pipe.
According to a further improved scheme, the concentrated material collecting pipes are fixedly connected to the concentrated material collecting device side by side, corresponding material collecting openings of the concentrated material collecting pipes are respectively and correspondingly arranged in the same row, the corresponding material collecting openings of the same row are fixedly connected with the concentrated material collecting device through connecting transverse rods, and pipe bodies of the concentrated material collecting pipes are fixedly connected with the concentrated material collecting device through connecting longitudinal rods.
According to a further improvement scheme, when the number of the centralized material collecting pipes is larger than that of the injection molding machines, a cover is respectively arranged at a material discharging pipe orifice and a material collecting opening of the centralized material collecting pipe which are not connected with the injection molding machines.
According to a further improvement scheme, when the number of the material receiving openings of the centralized material receiving pipe is larger than that of the material tanks, the material receiving openings which are not communicated with the material distributing and discharging pipes are respectively provided with a cover cap.
The invention has the beneficial effects that:
according to the granular material centralized feeding system, materials extracted from the material tank can completely enter the hopper of the corresponding injection molding machine, the feeding accuracy of each material can be ensured, and the feeding efficiency of the materials can be improved.
According to the granular material centralized feeding system, the vertical pipe drives the horizontal pipe to rotate, so that when materials are required to be fed according to different injection molding machines at different times, the horizontal pipe can automatically rotate to the corresponding material distributing and discharging pipe in time under the action of wind power generated when the exhaust fan pumps wind, the materials blown out of the horizontal pipe directly enter the centralized material collecting pipe communicated with the injection molding machine through the corresponding material distributing and discharging pipe, and the problem that the materials remain in the material distributing tank to cause the defect of the materials entering the hopper of the injection molding machine, and further the material proportion in the hopper of the injection molding machine is not consistent with the technological requirement, so that the product quality is affected is avoided.
Thirdly, the particle material centralized feeding system utilizes the principle of the wind direction measuring instrument through the action of the vertical piece A and the vertical piece B, thereby further improving the rotating action effect of the wind power of the exhaust fan on the vertical pipe and the horizontal pipe, ensuring that the horizontal pipe can correspond to the corresponding material distributing discharging pipe, and further ensuring the accuracy of material supply.
Fourth, the granule material centralized feeding system of the invention, through the effect of the cloth pipe, make the cloth pipe get into the branch material discharging pipe, while guaranteeing that the material in the horizontal pipe can get into the branch material discharging pipe directly, can also be convenient for the rotation of horizontal pipe and riser, in addition because the cloth pipe is flexible, compare with the rigid conveying pipeline, the frictional force with the material is relatively great, can also have certain slowing down effect to the ejection of compact speed of material, reduced the impact force of material to the conveying pipeline.
Fifth, the granular material centralized feeding system provided by the invention forms buffer transition for the materials discharged from the transverse pipe through the arrangement of the bent pipe, so that the problem that the high impact force is generated on the conveying pipeline due to the fact that the materials are always under the action of wind power, and the service life of the conveying pipeline is shortened is avoided.
Sixth, the granule material centralized feeding system of the invention, through the function of the diagonal brace, makes the pipe orifice of the cloth pipe open and can make the pipe orifice of the cloth pipe relatively fixed, thus can guarantee the discharging direction of the cloth pipe, avoid the pipe orifice of the cloth pipe from swinging back and forth to cause the material to possibly throw out of the material-distributing discharging pipe, ensure the material to completely enter the material-distributing discharging pipe, and also prevent the material from excessively receiving the effect of the cloth pipe to cause the discharging speed of the material to be too low, and further cause the material to be piled up.
Seventh, the granular material centralized feeding system of the invention is convenient for positioning the annular sealing anchor ear and connecting the pipe orifice of the elbow through the action of the annular connecting notch.
Eighth, the granular material centralized feeding system of the invention, connect the function of the convex ring and connect the annular linking groove, further guaranteed the coaxiality of the bend pipe and feed-out discharging pipe, prevent the supplies from piling up in bend pipe and feed-out discharging pipe.
Ninth, the granule material centralized feeding system of the invention, through the circular cone cambered surface structure of the tank bottom border of the material distributing tank, and the matching of material distributing discharging pipe and horizontal pipe and circular cone cambered surface, thus the material in the riser is convenient for all to get into the horizontal pipe, and the material in the horizontal pipe is convenient for get into the material distributing discharging pipe, also can make the material that the material distributing discharging pipe is located in one side mouth of the material distributing tank and escapes into the material distributing discharging pipe as far as possible, guarantee that the material that draws from the material tank gets into the injection molding machine completely.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is an enlarged schematic front sectional view of the material distributing device of the present invention.
Detailed Description
Referring to fig. 1-2, the granular material centralized feeding system of the invention comprises a plurality of material tanks 1 and a plurality of injection molding machines 4, wherein the material tanks 1 are communicated with the injection molding machines 4 through a material centralized collecting device 3, the material centralized collecting device 3 is provided with a plurality of centralized collecting pipes 8, and the top of each centralized collecting pipe 8 is provided with a plurality of feeding pipes, The material collecting device comprises a plurality of material collecting ports 9 arranged along the axial direction of a concentrated material collecting pipe 8, wherein the number of the concentrated material collecting pipes 8 is greater than or equal to the number of injection molding machines 4, the number of the material collecting ports 9 of each concentrated material collecting pipe 8 is greater than or equal to the number of material tanks 1, a material discharging pipe 5 arranged at the bottom of each material tank 1 is communicated with the material distributing feeding ports of each material distributing tank 2, a plurality of material distributing discharging pipes 6 are communicated with each material distributing tank 2, the number of the material distributing discharging pipes 6 is matched with the number of the concentrated material collecting pipes 8, the material distributing discharging pipes 6 are respectively communicated with the corresponding material collecting ports 9 of the concentrated material collecting pipes 8 through material conveying pipes A7, the concentrated material collecting pipes 8 are respectively communicated with hoppers of the corresponding injection molding machines 4 through material conveying pipes B10, a bypass pipe communicated with the outside atmosphere is further arranged on each material discharging pipe 5 and is respectively communicated with the bypass pipe and each material tank 1 through three-way joints, the three-way joints are respectively provided with respective valves of the bypass pipe and the material tanks 1, and the exhaust fan arranged in each injection molding machine 4 extracts materials and air from the material charging tanks 1 to the material distributing tanks 2 through the bypass pipes 5 and the material distributing pipes 1 respectively The material distributing and discharging pipe 6 of the material distributing tank 2 enters the centralized material collecting pipe 8 from the material collecting opening 9 through the material conveying pipe A7, finally enters the hopper of the injection molding machine 4 through the material conveying pipe B10, and finally air is discharged through the exhaust fan, the material distributing and discharging pipe 6 is uniformly distributed at the bottom of the side wall of the material distributing tank 2, the material distributing and discharging pipe 6 is communicated with the material distributing tank 2, a vertical pipe 14 is rotationally connected at the axial center position in the material distributing tank 2 around the axial center of the material distributing tank 2, the top of the vertical pipe 14 is communicated with the material discharging pipe 5 through a feeding connecting pipe 19, the bottom end of the vertical pipe 14 is sealed, The bottom of the side wall of the vertical pipe 14 is communicated with a transverse pipe 15, one end of the transverse pipe 15 far away from the vertical pipe 14 extends to the side wall of the material distributing tank 2, when the transverse pipe 15 corresponds to the material distributing discharging pipe 6 under the action of the vertical pipe 14, the transverse pipe 15 is coaxial with the corresponding material distributing discharging pipe 6, the inner diameter of the material distributing discharging pipe 6 is matched with the outer diameter of the transverse pipe 15, the feeding connecting pipe 19 is fixedly connected to the top of the material distributing tank 2, the feeding connecting pipe 19 downwards penetrates through the top of the material distributing tank 2, the bottom of the feeding connecting pipe 19 is communicated with a rotating sleeve 20 coaxially arranged, the top end of the vertical pipe 14 is fixedly connected with the rotating sleeve 20 in a coaxial sealing way, the bottom end of the vertical pipe 14 is rotationally connected with the position of the axle center of the tank bottom 12 of the material distributing tank 2 through a bearing 21, the side wall of the vertical pipe 14 is, a vertical plate B27 is arranged at one side corresponding to the transverse pipe 15, a vertical plate A25 is arranged at one side of the side wall of the vertical pipe 14 opposite to the transverse pipe 15, and the vertical plate A25, The axes of the vertical plate B27 and the horizontal pipe 15 are positioned in the same vertical plane passing through the axis of the vertical pipe 14, the edge of the vertical plate A25 far away from the vertical pipe 14 extends to the inner wall of the distributing tank 2, the vertical plate A25 and the vertical plate B27 form a guiding wind plate of the horizontal pipe 15, the distributing discharging pipe 6 is inclined downwards along the direction far away from the axis of the distributing tank 2, a conical cambered surface 13 is arranged at the edge position of the tank bottom 12 of the distributing tank 2, the conical cambered surface 13 is flush with the bottom of the inner wall of the distributing discharging pipe 6, the conical cambered surface 13 is attached to the bottom of the horizontal pipe 15, a distributing pipe 16 is sleeved at one end of the horizontal pipe 15 far away from the vertical pipe 14, the outer diameter of the distributing pipe 16 is matched with the horizontal pipe 15, when the horizontal pipe 15 is coaxially corresponding distributing discharging pipe 6, and the air current enters the distributing pipe 6 from the horizontal pipe 15, the distributing pipe 16 extends into the distributing pipe 6, one end of the distributing tank 2 far away from the distributing pipe 6 is communicated with the material conveying pipe A7 through a 17, the bent pipe 17 is connected with the distributing pipe 6, and is bent upwards and downwards after being bent, an S-shaped elbow is formed, two ends of the outer side wall of the elbow pipe 17 and one end of the outer side wall of the distribution discharging pipe 6 facing the elbow pipe 17 are respectively provided with corresponding annular connection notches 23, the distribution discharging pipe 6 and the elbow pipe 17 are fixedly connected through annular sealing hoops 18, one end of the inner side wall of the distribution discharging pipe 6 facing the elbow pipe 17 is provided with an annular connection groove, one end of the elbow pipe 17 connected with the distribution discharging pipe 6 is provided with a connection convex ring 22 which is connected with the annular connection groove in a matching way, the inner wall of the connection convex ring 22 is uniformly provided with a plurality of diagonal braces 24, the diagonal braces 24 respectively extend to the distribution discharging pipe 6 and incline to the axis of the distribution discharging pipe 6 along the direction pointing to the distribution discharging pipe 6, one end of each diagonal brace 24 extending out of the elbow pipe 17 is fixedly connected to the axis of the distribution discharging pipe 6, and when the elbow pipe 17 is fixed with the distribution discharging pipe 6, When the cloth pipes 16 extend into the corresponding material distributing and discharging pipes 6, one ends of the inclined supporting rods 24 extend into the pipe openings of the ends, far away from the transverse pipes 15, of the cloth pipes 16, the concentrated material collecting pipes 8 are fixedly connected to the concentrated material collecting devices 3 side by side, the corresponding material collecting openings 9 of the concentrated material collecting pipes 8 are respectively and correspondingly arranged in the same row, the corresponding material collecting openings 9 of the same row are fixedly connected with the concentrated material collecting devices 3 through connecting transverse rods 11, pipe bodies of the concentrated material collecting pipes 8 are fixedly connected with the concentrated material collecting devices 3 through connecting longitudinal rods, when the number of the concentrated material collecting pipes 8 is larger than that of the injection molding machines 4, covers are respectively arranged at the material discharging pipe openings of the concentrated material collecting pipes 8 and the material collecting openings 9, when the number of the concentrated material collecting pipes 8 is larger than that of the material tanks 1, covers are respectively arranged at the material collecting openings 9 which are not communicated with the material distributing and discharging pipes 6, the tops of the material tanks 1 are respectively communicated with the bottoms of the material collecting pipes 5, vent holes which are communicated with the outside atmosphere are arranged at the tops of the material tanks 1, and the material collecting devices 3 are in the material collecting device 209209528U is a technical scheme of the material distributing and discharging station of the device is disclosed by reference to the CN 24.
When the invention is used, when one of the injection molding machines 4 needs to perform injection molding on a plurality of materials, the materials needed by the injection molding machine 4 are sequentially fed.
When one of the materials is required to be fed by the injection molding machine 4, the material tank 1 corresponding to the material is firstly kept closed by a valve communicated with the material discharging pipe 5 and opened by a valve communicated with a bypass pipe 5, then an exhaust fan corresponding to a hopper of the injection molding machine 4 is started, at the moment, external air enters the material discharging pipe 5 through the bypass pipe, enters a vertical pipe 14 in a corresponding material distributing tank 2 through the material discharging pipe 5, enters a material distributing material discharging pipe 6 communicated with the injection molding machine 4 through a transverse pipe 15 in the material distributing tank 2, then air flows through a bent pipe 17 corresponding to the material distributing material discharging pipe 6 into a material conveying pipe A7, and air flows from a corresponding material collecting opening 9 into a concentrated material collecting pipe 8 communicated with the injection molding machine 4 through a material conveying pipe B10, is conveyed to the exhaust fan corresponding to the hopper of the injection molding machine 4, and finally the air is pumped out through the exhaust fan.
When the horizontal pipe 15 in the material distributing tank 2 does not correspond to the corresponding material distributing discharging pipe 6, air flow blown by the horizontal pipe 15 can be blown into the material distributing discharging pipe 6 corresponding to the starting injection molding machine through the material distributing tank 2, the vertical plate A25 and the vertical plate B27 fixed on the vertical pipe 14 are driven to rotate towards the corresponding material distributing discharging pipe 6 under the action of the air flow due to the flowing of the air flow in the material distributing tank 2, the vertical pipe 11 and the horizontal pipe 15 fixed on the vertical pipe 11 are driven to rotate towards the corresponding material distributing discharging pipe 6, after the vertical pipe 11 rotates to the state that the horizontal pipe 15 corresponds to the material distributing discharging pipe 6 communicated with the injection molding machine 4 of the starting exhaust fan, all air in the horizontal pipe 15 directly enters the material distributing discharging pipe 6, the rotation of the vertical pipe 11 is stopped, and the pipe opening at one end, far from the horizontal pipe 15, of the material distributing pipe 16 is supported by the diagonal stay bars 24 under the action of flowing air.
The method comprises the steps of continuously keeping a period of time, ensuring that a transverse pipe 15 communicated with a material tank 2 corresponds to a corresponding material distributing discharging pipe 6, enabling a distribution pipe 16 to enter the corresponding material distributing discharging pipe 6, then opening a valve communicated with the material tank 1 by the discharging pipe 5 and simultaneously closing a valve communicated with a corresponding bypass pipe by the discharging pipe 5, at the moment, respectively sucking materials in the corresponding material tank 1 into the discharging pipe 5 under the negative pressure of an exhaust fan, sequentially entering a corresponding vertical pipe 14, a transverse pipe 15 and the distribution pipe 16 through the discharging pipes 5, then entering a corresponding bent pipe 17 from between inclined supporting rods 24 after leaving the corresponding distribution pipe 16, then entering a corresponding material conveying pipe A7 communicated with the corresponding bent pipe 17, respectively entering a corresponding concentrated material collecting pipe 8 through a material collecting opening 9 communicated with the material conveying pipe A7, and finally conveying the materials into a hopper of the injection molding machine 4 through a material conveying pipe B10 communicated with the concentrated material collecting pipe 8;
The feeding amount of the materials is converted by time delay timing, when the material tank 2 of the materials is continuously extracted for a period of time, the amount of the materials extracted from the material tank 2 of the materials is the amount of the materials of the injection molding machine 4, at the moment, the valve of the discharge pipe 5 of the material tank 2 communicated with the corresponding material tank 1 is closed again, the valve of the discharge pipe 5 of the material tank 2 communicated with the corresponding bypass pipe is opened again at the same time, and the materials extracted from the material tank 2 and still not entering the hopper of the injection molding machine 4 are all entered into the hopper of the injection molding machine 4 for a period of time again.
After the material completely enters the hopper of the injection molding machine 4, the valve that the discharge pipe 5 of the material tank 2 of the material is communicated with the corresponding bypass pipe is closed, and the process is repeated, so that the material tank 1 corresponding to another material needed by the injection molding machine 4 also supplies the injection molding machine 4.
When a plurality of injection molding machines 4 need to perform injection molding at the same time, different material tanks 2 are controlled by a program to feed different injection molding machines 4 at the same time, so that the feeding accuracy of each material is ensured and the feeding efficiency of each material is improved as much as possible.
Claims (8)
1. The granule material centralized feeding system is characterized by comprising a plurality of material tanks (1) and a plurality of injection molding machines (4), wherein the material tanks (1) are communicated with the injection molding machines (4) through a material centralized collecting device (3), the material centralized collecting device (3) is provided with a plurality of centralized collecting pipes (8), the top of each centralized collecting pipe (8) is axially provided with a plurality of collecting ports (9) along the centralized collecting pipe (8), the number of the centralized collecting pipes (8) is greater than or equal to the number of the injection molding machines (4), the number of the collecting ports (9) of each centralized collecting pipe (8) is greater than or equal to the number of the material tanks (1), a discharging pipe (5) arranged at the bottom of each material tank (1) is communicated with a material distributing inlet of a distributing tank (2), the distributing tank (2) is communicated with a plurality of distributing discharging pipes (6), the number of the distributing discharging pipes (6) is matched with the number of the centralized collecting pipes (8), the distributing pipes (6) are respectively communicated with a material bypass pipe (7) which is communicated with the material collecting pipes (5) through a corresponding material conveying pipe (7A and a material bypass pipe (8) which is communicated with the material collecting pipe (5) and the material collecting pipe (8) which is communicated with the material inlet (5) through the material centralized collecting pipe (5), the exhaust fan arranged in the injection molding machine (4) is used for extracting materials and air from the material tank (1) to the material distributing tank (2) through the material discharging pipe (5), then the material distributing discharging pipe (6) of the material distributing tank (2) enters the centralized material collecting pipe (8) from the material collecting port (9) through the material conveying pipe A (7), finally enters the hopper of the injection molding machine (4) through the material conveying pipe B (10) and finally is discharged through the exhaust fan;
The material distributing and discharging pipe (6) is uniformly distributed at the bottom of the side wall of the material distributing tank (2), the material distributing and discharging pipe (6) is communicated with the inside of the material distributing tank (2), a vertical pipe (14) is rotationally connected at the axis center of the material distributing tank (2) around the axis center of the material distributing tank (2), the top of the vertical pipe (14) is communicated with the material discharging pipe (5) through a feeding connecting pipe (19), the bottom end of the vertical pipe (14) is sealed, the bottom of the side wall of the vertical pipe (14) is communicated with a transverse pipe (15), one end of the transverse pipe (15) far away from the vertical pipe (14) extends to the side wall of the material distributing tank (2), and when the transverse pipe (15) corresponds to the material distributing and discharging pipe (6) under the action of the vertical pipe (14), the transverse pipe (15) is coaxial with the corresponding material distributing and the inner diameter of the material distributing and discharging pipe (6) is matched with the outer diameter of the transverse pipe (15);
The one end cover that riser (14) were kept away from to violently managing (15) has put cloth pipe (16), the external diameter and the violently managing (15) of cloth pipe (16) match, and when violently managing (15) and the branch material discharging pipe (6) coaxial core that corresponds to the air current gets into branch material discharging pipe (6) from violently managing (15), in cloth pipe (16) stretched into branch material discharging pipe (6).
2. The concentrated feed system for particulate material according to claim 1, wherein the feed connection pipe (19) is fixedly connected to the top of the distribution tank (2), and the feed connection pipe (19) penetrates the top of the distribution tank (2) downwards.
3. The concentrated feeding system for granular materials according to claim 2, wherein the bottom of the feeding connecting pipe (19) is communicated with a coaxially arranged rotating sleeve (20), the top end of the vertical pipe (14) is fixedly connected with the rotating sleeve (20) in a coaxial sealing way, and the bottom end of the vertical pipe (14) is rotationally connected with the axle center of the tank bottom (12) of the distributing tank (2) through a bearing (21).
4. The concentrated feeding system for granular materials according to claim 1, wherein a vertical plate B (27) is arranged on one side of the side wall of the vertical pipe (14) corresponding to the transverse pipe (15), a vertical plate A (25) is arranged on one side of the side wall of the vertical pipe (14) opposite to the transverse pipe (15), the axes of the vertical plate A (25), the vertical plate B (27) and the transverse pipe (15) are positioned in the same vertical plane passing through the axis of the vertical pipe (14), the edge of the vertical plate A (25) far away from the vertical pipe (14) extends to the inner wall of the separating tank (2), and the vertical plate A (25) and the vertical plate B (27) form a guiding air plate of the transverse pipe (15).
5. The granular material centralized feeding system as set forth in claim 1, wherein the material distributing and discharging pipe (6) is inclined downwards along a direction far away from the axis of the material distributing tank (2), a conical cambered surface (13) is arranged at the edge position of the tank bottom (12) of the material distributing tank (2), the conical cambered surface (13) is flush with the bottom of the inner wall of the material distributing and discharging pipe (6), and the conical cambered surface (13) is attached to the bottom of the transverse pipe (15).
6. The concentrated feeding system for granular materials according to claim 1, wherein one end of the material distributing discharging pipe (6) far away from the material distributing tank (2) is communicated with the material conveying pipe A (7) through a bent pipe (17), the bent pipe (17) is connected with the material distributing discharging pipe (6), after being bent upwards, the bent pipe is bent downwards to form an S-shaped elbow, two ends of the outer side wall of the bent pipe (17) and one end of the outer side wall of the material distributing discharging pipe (6) facing the bent pipe (17) are respectively provided with corresponding annular connection notches (23), and the material distributing discharging pipe (6) and the bent pipe (17) are fixedly connected through annular sealing hoops (18).
7. The concentrated feeding system for granular materials according to claim 6, wherein an annular connecting groove is formed in one end, facing the bent pipe (17), of the inner side wall of the material distributing discharging pipe (6), and a connecting convex ring (22) which is connected with the annular connecting groove in a matching mode is arranged at one end, connected with the material distributing discharging pipe (6), of the bent pipe (17).
8. The concentrated feeding system for granular materials according to claim 7, wherein a plurality of diagonal braces (24) are uniformly arranged on the inner wall of the connecting convex ring (22), the diagonal braces (24) respectively extend towards the distributing discharging pipe (6) and incline towards the axle center of the distributing discharging pipe (6) along the direction of the distributing discharging pipe (6), one ends of the diagonal braces (24) extending out of the bent pipe (17) are fixedly connected with the axle center of the distributing discharging pipe (6) mutually, and when the bent pipe (17) and the distributing discharging pipe (6) are fixed and when the distributing pipe (16) extends into the corresponding distributing discharging pipe (6), one ends of the diagonal braces (24) extending out of the bent pipe (17) extend into the pipe mouth of one end of the distributing pipe (16) far away from the transverse pipe (15).
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| CN207224453U (en) * | 2017-08-31 | 2018-04-13 | 宁波昌亚塑料科技有限公司 | A kind of concentration feeding machine for more injection molding machines feed |
| CN209209528U (en) * | 2018-10-24 | 2019-08-06 | 昆山石梅新材料科技有限公司 | Acrylic resin raw materials for production concentrate feeding system |
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| CN101758572A (en) * | 2009-03-30 | 2010-06-30 | 楼正荣 | Integrative multiple-chamber grading plastic oven charging basket |
| CN202152176U (en) * | 2011-08-03 | 2012-02-29 | 安徽开乐专用车辆股份有限公司 | Pipeline of material and air separating device for cleaning powder-particle material tanker with air |
| IT201700087246A1 (en) * | 2017-07-28 | 2019-01-28 | Moretto Spa | METHOD AND INJECTION MOLDING SYSTEM OF PLASTIC MATERIAL IN GRANULAR FORM |
| CN207535207U (en) * | 2017-12-02 | 2018-06-26 | 苏州晶昶光电有限公司 | A kind of injection molding machine feeding device |
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| CN207224453U (en) * | 2017-08-31 | 2018-04-13 | 宁波昌亚塑料科技有限公司 | A kind of concentration feeding machine for more injection molding machines feed |
| CN209209528U (en) * | 2018-10-24 | 2019-08-06 | 昆山石梅新材料科技有限公司 | Acrylic resin raw materials for production concentrate feeding system |
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