CN110315692B - Injection molding machine for molding product shell - Google Patents

Injection molding machine for molding product shell Download PDF

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Publication number
CN110315692B
CN110315692B CN201910745614.5A CN201910745614A CN110315692B CN 110315692 B CN110315692 B CN 110315692B CN 201910745614 A CN201910745614 A CN 201910745614A CN 110315692 B CN110315692 B CN 110315692B
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injection molding
rotating
cleaning
head
molding machine
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CN110315692A (en
Inventor
罗金城
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Alma Technology Co.,Ltd.
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Dongguan Imr Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1753Cleaning or purging, e.g. of the injection unit

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The embodiment of the invention discloses an injection molding machine for molding a product shell, which comprises a charging barrel arranged on the injection molding machine, wherein a rotating screw used for pushing injection molding materials to be injected into a mold is arranged in the charging barrel, an injection molding head is arranged at one end head of the charging barrel, the injection molding head comprises an injection molding feed inlet and an injection molding discharge outlet, a first cleaning component used for cleaning blockage of the injection molding head is arranged between the injection molding feed inlet and the injection molding discharge outlet, the injection molding materials remained in the injection molding head can be removed by using a high-pressure air jet head through the arranged first cleaning component in a mode of jetting high-pressure air flow, the problem that the injection molding head is blocked by the remained materials in the injection molding head after cooling can be avoided, and a second cleaning component is arranged, the injection molding materials remained on the rotating screw can be removed in a mode of driving a cleaning block to move by using the screw, so that when the charging barrel is cleaned by PP materials, the cleaning can be ensured to be cleaner.

Description

Injection molding machine for molding product shell
Technical Field
The embodiment of the invention relates to the technical field of injection molding machines, in particular to an injection molding machine for molding a product shell.
Background
An injection molding machine is also known as an injection molding machine or an injection machine. The injection molding machine can heat plastic to apply high pressure to molten plastic to inject the plastic to fill the mold cavity, has the capability of molding plastic products with complicated shapes, high dimensional precision or compact texture with metal inserts at one time, and is widely applied to various fields of national defense, electromechanics, automobiles, transportation, building materials, packaging, agriculture and the like.
When the current injection molding machine is used, only one specification of raw materials can be used for injection molding once, when the raw materials used for injection molding are replaced, a worker is required to empty the material barrel, then the PP material is used for cleaning the material barrel, but in the actual operation process, the injection molding material is difficult to be thoroughly cleaned, the injection molding material is easy to remain on the injection molding head and the rotating screw rod, when the injection molding head remains, the injection molding head is particularly easy to block after being cooled, when the injection molding material remains on the rotating screw rod, the residual material and the new material are mixed to cause the defect of an injection molded product, and the problem is solved.
Disclosure of Invention
Therefore, the embodiment of the invention provides an injection molding machine for molding a product shell, which aims to solve the problems that in the prior art, when an injection molding raw material is replaced, an injection molding material is difficult to clean, residual materials are particularly easy to block an injection molding head after being cooled, and the residual materials on a rotating screw are difficult to clean, so that new materials and the residual materials are easy to mix, and the injection molding product has defects.
The cleaning difficulty for rotating the screw rod is large, and the injection molding head is easily blocked by defective materials after the injection molding materials are emptied.
In order to achieve the above object, an embodiment of the present invention provides the following:
the utility model provides an injection molding machine for product housing shaping, is including setting up the feed cylinder on the injection molding machine, be provided with the rotation screw rod that is used for promoting in the injection molding material injection mold in the feed cylinder, a tip department of feed cylinder is provided with the head of moulding plastics, the head of moulding plastics includes injection moulding feed inlet and the discharge gate of moulding plastics, just be provided with the first clearance subassembly that is used for clearing up the first putty of moulding plastics between injection moulding feed inlet and the discharge gate of moulding plastics, the one end that the feed cylinder is close to first clearance subassembly is provided with the bin outlet that is used for discharging unnecessary injection molding material the one end that first clearance subassembly was kept away from to the feed cylinder is provided with the second clearance subassembly that is used for clearing up the rotation screw.
As a preferable scheme of the invention, the first cleaning assembly comprises a rotating column arranged between the injection molding feed port and the injection molding discharge port and a high-pressure air nozzle connected with an external air pump through an air pipe, the rotating column is provided with an L-shaped connecting hole for changing the connecting state of the high-pressure air nozzle with the injection molding feed port and the injection molding discharge port, a connecting through hole specially used for communicating the injection molding discharge port with the injection molding feed port is arranged behind the L-shaped connecting hole, and the rotating column is also provided with a power assembly for driving the rotating column to move.
As a preferred scheme of the invention, the power assembly comprises a rotating shaft arranged on a rotating column, a rotating sleeve driven by a driving motor is sleeved on the rotating shaft, a rotating chute is further arranged on the rotating shaft, and a fixed limiting block connected with the rotating chute in an embedded manner is fixedly arranged on the injection molding machine.
In a preferred embodiment of the present invention, the rotating sleeve has a sliding groove formed on an inner side thereof, the rotating shaft is provided with a fixing block corresponding to the sliding groove, and the rotating sleeve is slidably coupled to the rotating shaft by fitting the sliding groove to the fixing block.
As a preferable mode of the present invention, the rotation chute includes a smooth section and an inclined section, and the smooth section is provided with at least one-fourth of the circumference of the rotation shaft.
As a preferable scheme of the invention, the second cleaning assembly comprises a mounting plate which is arranged at one end of the charging barrel, which is far away from the injection head, and is driven by an electric push rod, a first guide chute is formed in the mounting plate, the mounting plate is connected with a cleaning block corresponding to the rotating screw rod in a sliding manner through the first guide chute, and a second guide chute corresponding to the first guide chute is formed in the inner wall of the charging barrel.
In a preferred embodiment of the present invention, at least two second cleaning assemblies are provided.
As a preferable scheme of the invention, the thickness of the cleaning block is equal to the distance between two adjacent screw blades on the rotating screw.
As a preferable mode of the present invention, the discharge port is provided with an electromagnetic valve.
The embodiment of the invention has the following advantages:
the injection molding machine comprises a first cleaning component, a second cleaning component and a cleaning block, wherein the first cleaning component is arranged on the injection molding head and used for cleaning the injection molding head, the cleaning block is arranged on the second cleaning component, and the cleaning block is arranged on the second cleaning component.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of a portion of the structure of the present invention;
FIG. 3 is a perspective view of a rotating post in an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of the structure at A in FIG. 1;
fig. 5 is an enlarged view of a portion B of fig. 2.
In the figure:
1-a charging barrel; 2-rotating the screw; 3-an injection molding head; 4-injection molding feed inlet; 5-injection molding a discharge port; 6-a first cleaning assembly; 7-a second cleaning assembly; 8-a discharge port; 9-an electromagnetic valve;
601-rotating column; 602-high pressure showerhead; 603-L-shaped connecting holes; 604-connecting vias; 605-a power assembly; 606-a rotating shaft; 607-rotating sleeve; 608-rotating chute; 609-fixing a limiting block; 610-a sliding groove; 611, fixing blocks; 612-a smoothing section; 613-inclined section;
701-mounting a plate; 702-a first guide chute; 703-cleaning block; 704-second guide runner.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the invention provides an injection molding machine for molding a product shell, which comprises a material cylinder 1 arranged on the injection molding machine, wherein a rotating screw 2 for pushing injection molding materials to be injected into a mold is arranged in the material cylinder 1, an injection head 3 is arranged at one end of the material cylinder 1, the injection head 3 comprises an injection material inlet 4 and an injection material outlet 5, a first cleaning component 6 for cleaning blockage of the injection head 3 is arranged between the injection material inlet 4 and the injection material outlet 5, a material outlet 8 for discharging redundant injection molding materials is arranged at one end of the material cylinder 1 close to the first cleaning component 6, the material outlet 8 is arranged at the lower end of the material cylinder 1, namely, the injection molding materials naturally flow to the lowest point under the action of gravity, the injection molding materials can be discharged through the material outlet 8, and the residual quantity in the material cylinder 1 can be further reduced during material discharging, a second cleaning component 7 for cleaning the rotating screw 2 is arranged at one end of the charging barrel 1 far away from the first cleaning component 6.
Be provided with solenoid valve 9 on bin outlet 8, solenoid valve 9 adopts the form of butterfly valve, reduces its problem that the putty appears, and bin outlet 8 is connected with external material receiving box through the tubular metal resonator, when reloading, and the user of being convenient for carries out quadratic recycle to the discharged material, still all is provided with the heating resistor silk on tubular metal resonator and the bin outlet 8 that set up for avoid there being remaining injection molding material to solidify in its inside, and lead to its problem that the jam appears.
The first embodiment is as follows: the first cleaning component 6 comprises a rotating column 601 arranged between the injection molding feed port 4 and the injection molding discharge port 5 and a high-pressure air nozzle 602 connected with an external air pump through an air pipe, the rotating column 601 is provided with an L-shaped connecting hole 603 for changing the connection state of the high-pressure air nozzle 602 with the injection molding feed port 4 and the injection molding discharge port 5, a connecting through hole 604 specially used for communicating the injection molding discharge port 5 with the injection molding feed port 4 is arranged behind the L-shaped connecting hole 603, the rotating column 601 is also provided with a power component 605 for driving the rotating column 601 to move, the injection molding discharge port 5 and the injection molding feed port 4 are arranged at the same straight line position, the high-pressure air nozzle 602 forms an angle of 90 degrees with the injection molding discharge port 5 and the injection molding feed port 4, and thus when the rotating column 601 rotates, the connection relationship between the high-pressure air nozzle 602 and the injection molding discharge port 5 and the injection molding feed port 4 can be controlled, when high-pressure jet head 602 and injection molding discharge gate 5 communicate, start external air pump and pass through the jet-propelled 602 head blowout high-pressure draught of high pressure, thereby can make partly residual material discharge from injection molding discharge gate 5, and when high-pressure jet head 602 and injection molding feed inlet 4 communicate, then can realize dividing the material of another portion remaining in the head 3 of will moulding plastics and come in and go out to feed cylinder 1 in, heat through feed cylinder 1 again and melt and make it discharge from bin outlet 8, can effectually avoid the first 1 problem that blocks up of moulding plastics, it is more convenient to clear up.
It should be added that the turning of the L-shaped connection hole 603 is an arc structure to reduce the loss of the high-pressure air flow passing through the L-shaped connection hole 603.
It is further supplementary that, high pressure jet head 602, the discharge gate 5 of moulding plastics and the one end that the feed inlet 4 of moulding plastics is close to and rotates post 601 all can be provided with metal seal ring, metal seal ring accessible micro motor drives, and then can support when connecting and rotate post 601, realize the sealing connection between its three, can avoid discharging the problem that can appear leaking the material when expecting or moulding plastics, metal seal ring can adopt 718 alloy to make, can guarantee that it has sufficient high temperature resistance, can ensure the leakproofness of its connection.
The power assembly 605 includes a rotating shaft 606 disposed on the rotating column 601, the rotating shaft 606 is sleeved with a rotating sleeve 607 driven by a driving motor, the inner side of the rotating sleeve 607 is provided with a sliding groove 610, and the rotating shaft 606 is provided with a fixing block 611 corresponding to the sliding groove 610, the rotating sleeve 607 is slidably connected with the rotating shaft 606 through the engagement of the sliding groove 610 and the fixing block 611, i.e. the rotating sleeve 607 can rotate under the driving of the driving motor and can slide back and forth, in addition, the driving motor driving the rotating sleeve 607 to move is provided with an encoder, the encoder is a device for compiling and converting signals or data into signal forms for communication, transmission and storage, and can convert angular displacement or linear displacement into electrical signals, and in this embodiment, the purpose of precisely controlling the rotating angle of the rotating column 601 is achieved, the problem of slurry leakage caused by incorrect hole positions during injection molding or discharging is avoided.
A rotating chute 608 is further arranged on the rotating shaft 606, a fixed limit block 609 which is embedded and connected with the rotating chute 608 is fixedly arranged on the injection molding machine, the rotation chute 608 comprises a smooth section 612 and an inclined section 613, the smooth section 612 is provided with at least one quarter of the circumference of the rotation shaft 606, i.e. the smooth segment 612 is provided for at least 90 degrees of rotation at the same position on the rotating post 601, to ensure that the connection relationship between the high-pressure gas nozzle 602 and the injection molding discharge hole 5 and the injection molding feed hole 4 can be changed through the L-shaped connecting hole 603, when rotated to the inclined section 613, continued rotation causes the rotating post 601 to move forward, that is, after moving to a certain extent, the connecting through hole 604 arranged at the rear can be positioned between the injection molding feed port 4 and the injection molding discharge port 5, thereby realize moulding plastics the feed inlet 4 and be connected between the discharge gate 5 of moulding plastics, further reach the purpose of normally moulding plastics and to the head 3 clearance of moulding plastics.
The second embodiment of the first cleaning assembly may be: high-pressure jet head 602, it is equal angle setting to mould plastics between feed inlet 4 and the discharge gate 5 of moulding plastics, its rotation post 601 sets up at high-pressure jet head 602, the central point of feed inlet 4 and the discharge gate 5 of moulding plastics puts, set up the V-arrangement through-hole of an angle 60 degrees on rotating post 601, and then when driving rotation post 601 motion through driving motor, it rotates 60 degrees every time, then accessible V-arrangement is through switching high-pressure jet head 602, a connection state between feed inlet 4 and the discharge gate 5 three of moulding plastics, realize the above-mentioned same mesh with it.
It is necessary to supplement that heating resistance wires are arranged around the rotating column 601 to avoid the problem of cooling and blocking of the injection molding material in the V-shaped through hole.
First embodiment compares with the second embodiment, is difficult for appearing the problem of putty when moulding plastics more, and it arranges the material and all can more convenience to the clearance of moulding plastics head, and the second embodiment compares with first embodiment, and its structure is simpler, cost that can effectual reduction use.
The second cleaning component 7 comprises a mounting plate 701 which is arranged at one end of the feed cylinder 1 far away from the injection head 3 and driven by an electric push rod, a first guide chute 702 is formed in the mounting plate 701, the mounting plate 701 is connected with a cleaning block 703 corresponding to the rotary screw rod 2 in a sliding mode through the first guide chute 702, a second guide chute 704 corresponding to the first guide chute 702 is arranged on the inner wall of the feed cylinder 1, the first guide chute 702 and the second guide chute 704 can form a complete guide chute and are used for limiting the sliding range of the cleaning block 703, the situation that the movement of the cleaning block exceeds a specified distance can be avoided, and the cleaning block 703 cannot return to the mounting plate 701 is avoided.
The mounting panel 701 that sets up is the position of keeping level with feed cylinder 1 through the farthest distance of electric putter motion, and then when keeping level with feed cylinder 1, its first direction spout 702 then can be in same position with second direction spout 704, thereby can make the clearance piece 703 of arranging on the mounting panel 701 in can moving to the feed cylinder 1, realize the motion that drives clearance piece 703 through the rotation of rotating screw rod 2, and then can realize the clearance to rotating screw rod 2 when its motion, can effectually avoid remaining on rotating screw rod 2 to have a large amount of clouts and can't pass through PP material and wash, and lead to clout and new material mixing when injecting the new material, make the problem that the product of moulding plastics appears the flaw.
In addition, clearance piece 703 thickness equals the interval between the two adjacent lobes on the rotation screw rod 2, second clearance subassembly 7 is provided with two at least, realizes synchronous clearance from top to bottom, guarantees the clearance effect to the rotation screw rod, clearance piece 703 card promptly on the rotation screw rod 2, realizes when the rotation screw rod 2 motion, and accessible clearance piece 703 carries out thorough clearance to its lobe and the body of rod to avoid rotating the problem of the remaining a large amount of clouts on the screw rod 2.
When the electric push rod drives the cleaning block 703 to be clamped into the rotary screw rod 2, the rotary screw rod 2 moves along with the movement of the electric push rod, namely, the movement amplitude of the rotary screw rod 2 is matched with that of the electric push rod, so that the problem of jamming can be avoided.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (8)

1. An injection molding machine for molding a product shell comprises a charging barrel (1) arranged on the injection molding machine, a rotary screw (2) for pushing injection molding materials to be injected into a mold is arranged in the charging barrel (1), it is characterized in that an injection molding head (3) is arranged at one end of the charging barrel (1), the injection head (3) comprises an injection feed inlet (4) and an injection discharge outlet (5), a first cleaning component (6) for cleaning the blockage of the injection molding head (3) is arranged between the injection molding feed port (4) and the injection molding discharge port (5), one end of the charging barrel (1) close to the first cleaning component (6) is provided with a discharge opening (8) for discharging redundant injection molding materials, a second cleaning component (7) used for cleaning the rotating screw (2) is arranged at one end, far away from the first cleaning component (6), of the charging barrel (1);
first clearance subassembly (6) including set up rotation post (601) between feed inlet (4) and the discharge gate of moulding plastics (5) and high-pressure jet head (602) of being connected with external air pump through the trachea, it is used for changing high-pressure jet head (602) and feed inlet (4) and the L shape connecting hole (603) of the discharge gate (5) connection state of moulding plastics to mould plastics to rotate to offer on post (601) the rear of L shape connecting hole (603) is provided with connecting hole (604) that are used for the intercommunication discharge gate of moulding plastics (5) and feed inlet (4) of moulding plastics specially, just it is used for driving power component (605) that rotate the motion of post (601) still to be provided with on rotation post (601).
2. The injection molding machine for molding the outer shell of the product according to claim 1, wherein the power assembly (605) comprises a rotating shaft (606) arranged on the rotating column (601), a rotating sleeve (607) driven by a driving motor is sleeved on the rotating shaft (606), a rotating chute (608) is further arranged on the rotating shaft (606), and a fixed limit block (609) connected with the rotating chute (608) in an embedded manner is fixedly arranged on the injection molding machine.
3. The injection molding machine for molding the outer shell of the product as claimed in claim 2, wherein a sliding groove (610) is formed inside the rotating sleeve (607), a fixing block (611) corresponding to the sliding groove (610) is provided on the rotating shaft (606), and the rotating sleeve (607) is slidably connected to the rotating shaft (606) by fitting the sliding groove (610) and the fixing block (611).
4. The injection molding machine for molding the outer shell of the product according to claim 2, wherein the rotating chute (608) comprises a smooth section (612) and an inclined section (613), and the smooth section (612) is provided with at least one quarter of the circumference of the rotating shaft (606).
5. The injection molding machine for molding the outer shell of the product according to claim 1, wherein the second cleaning assembly (7) comprises a mounting plate (701) which is arranged at one end of the charging barrel (1) far away from the injection head (3) and is driven by an electric push rod, a first guide chute (702) is arranged on the mounting plate (701), a cleaning block (703) corresponding to the rotating screw rod (2) is connected to the mounting plate (701) in a sliding manner through the first guide chute (702), and a second guide chute (704) corresponding to the first guide chute (702) is arranged on the inner wall of the charging barrel (1).
6. An injection molding machine for molding a product casing according to claim 5, wherein at least two of said second cleaning units (7) are provided.
7. An injection molding machine for molding a product casing according to claim 5, wherein the thickness of the cleaning block (703) is equal to the distance between two adjacent blades on the rotating screw (2).
8. An injection molding machine for molding a product casing according to claim 1, wherein a solenoid valve (9) is provided on the discharge port (8).
CN201910745614.5A 2019-08-13 2019-08-13 Injection molding machine for molding product shell Active CN110315692B (en)

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CN110315692B true CN110315692B (en) 2021-06-01

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110722753A (en) * 2019-10-25 2020-01-24 芜湖市智睿包装制品有限公司 Disposable box processing injection molding machine of plastics
JP7472534B2 (en) * 2020-02-25 2024-04-23 セイコーエプソン株式会社 Plasticizing device, injection molding device, and three-dimensional modeling device
CN112207192A (en) * 2020-10-12 2021-01-12 江门市新会区天府密封科技有限公司 Sealing ring processing and shaping device
CN113733476B (en) * 2021-07-28 2023-10-24 漳州市芗城新辉塑胶有限公司 Preparation process of high-performance modified plastic product

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JPH06143342A (en) * 1992-11-09 1994-05-24 Mitsubishi Heavy Ind Ltd Screw head of injection molder
DE202014001430U1 (en) * 2014-02-19 2014-06-02 Stefan Neumann Filter device for an injection molding machine
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Address after: 523000 No. 5, Guang'an Road, Chang'an Town, Dongguan City, Guangdong Province

Patentee after: Alma Technology Co.,Ltd.

Address before: Building zc04, Zhenan science and Technology Park, 9 Zhenan West Road, Chang'an Town, Dongguan City, Guangdong Province, 523000

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