CN114889045A - Injection mold of gear piece - Google Patents
Injection mold of gear piece Download PDFInfo
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- CN114889045A CN114889045A CN202210473969.5A CN202210473969A CN114889045A CN 114889045 A CN114889045 A CN 114889045A CN 202210473969 A CN202210473969 A CN 202210473969A CN 114889045 A CN114889045 A CN 114889045A
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- die holder
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- movable die
- groove
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- 238000002347 injection Methods 0.000 title claims abstract description 34
- 239000007924 injection Substances 0.000 title claims abstract description 34
- 238000001746 injection moulding Methods 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1742—Mounting of moulds; Mould supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2015/00—Gear wheels or similar articles with grooves or projections, e.g. control knobs
- B29L2015/003—Gears
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molds, in particular to an injection mold of a gear piece, which comprises a fixed mold seat, wherein a forming groove is formed in the fixed mold seat, and one side of the fixed mold seat is connected with injection molding equipment communicated with the forming groove; the die comprises a movable die holder, a die head and a die head, wherein a forming raised head is fixedly arranged on the movable die holder, and one side of the movable die holder is connected with a hydraulic driving device; a fixing mechanism which automatically and fixedly connects the movable die base to the fixed die base is connected between the fixed die base and the movable die base; when the movable die holder and the fixed die holder are assembled, the fixed mechanism fixes the movable die holder to the fixed die holder for a set time, and then the fixed die holder is automatically released from fixing the movable die holder. According to the invention, the movable die base can be automatically fixed on and separated from the fixed die base through the arrangement of the fixing mechanism, manual fixing and release of the movable die are not needed, the operation is convenient, the manpower occupation is small, and the use of the injection die and the processing cost of a gear piece are obviously reduced.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold for a gear piece.
Background
Injection molding is a method for producing and molding industrial products, and generally, thermoplastic plastics or thermosetting plastics are made into plastic products with various shapes by using a plastic molding die.
The plastic gear piece is mostly formed by adopting an injection mold, the existing injection mold for processing the gear piece mainly comprises a movable mold and a fixed mold, when the movable mold and the fixed mold are in a mold closing state, a cavity is formed between the movable mold and the fixed mold, after rubber is extruded into the cavity from an injection opening, the rubber is heated and vulcanized in the mold to realize molding, and finally, the mold is opened to take out a finally molded product.
For this purpose, an injection mold for a gear piece is proposed.
Disclosure of Invention
The invention aims to provide an injection mold of a gear piece, which can automatically fix and separate a movable mold base on and from a fixed mold base through the arrangement of a fixing mechanism, and solves the problems in the background technology in a mode of manually fixing and releasing a movable mold.
In order to achieve the purpose, the invention provides the following technical scheme:
an injection mold of a gear piece comprises a fixed mold seat, wherein a forming groove is formed in the fixed mold seat, and one side of the fixed mold seat is connected with injection molding equipment communicated with the forming groove;
the die comprises a movable die holder, a die head and a die head, wherein a forming raised head is fixedly arranged on the movable die holder, and one side of the movable die holder is connected with a hydraulic driving device;
a fixing mechanism for automatically and fixedly connecting the movable die base to the fixed die base is connected between the fixed die base and the movable die base;
when the movable die holder and the fixed die holder are assembled, the fixed mechanism fixes the movable die holder to the fixed die holder for a set time, and then the fixed die holder is automatically released from fixing the movable die holder.
The hydraulic driving device is started to drive the movable die holder and the forming raised head to reciprocate horizontally, the injection molding device is started to perform injection molding when the movable die holder and the fixed die holder are assembled and the forming raised head is inserted into the corresponding forming groove, the movable die holder is fixed to the fixed die holder by the fixing mechanism when the movable die holder and the fixed die holder are assembled, so that the situation that the position of the movable die holder is deviated due to overlarge injection pressure during injection molding can be prevented, the fixed position of the fixed die holder on the movable die holder is automatically released after the set time, the gear part is formed in the forming groove at the moment, the movable die holder and the forming raised head are driven by the hydraulic driving device to move to one side far away from the fixed die holder and the formed gear part is dismounted, the movable die holder can be automatically fixed to the fixed die holder and separated from the fixed die holder by the setting mechanism, and manual fixing of the movable die and fixing of the movable die are not needed, not only convenient operation occupies lessly moreover the manpower to obviously reduced injection mold's use and gear spare's processing cost.
Preferably, fixed establishment includes the footstock of fixed mounting on the die holder roof, fixed mounting has the cylinder on the roof of footstock, the output fixed mounting of cylinder has the piston rod, the limiting plate is installed to the bottom of piston rod, and the bottom of limiting plate extends to the downside of footstock, set up the spacing groove of mutually supporting with the limiting plate on the roof of movable mould base, fixed mounting has the fixed block on the lateral wall that the movable mould base is close to die holder one side, fixed mounting has the piezoceramics piece of mutually supporting with the fixed block on the lateral wall that the die holder is close to movable mould base one side, and piezoceramics piece electric connection is on the cylinder, be connected with the time delay subassembly on the cylinder.
When the movable die holder and the fixed die holder are assembled, the fixed block is tightly attached to one side of the top seat and extrudes the piezoelectric ceramic piece, the piezoelectric ceramic piece generates current after being extruded and starts the air cylinder, when the power of the cylinder is too high, a plurality of piezoelectric ceramic plates can be arranged to jointly supply power to the cylinder, after the cylinder is started, the piston rod can be driven to drive the limiting plate to move downwards, the bottom end of the limiting plate is inserted into the limiting groove on the top wall of the movable die holder, thereby the movable die holder can be fixedly connected to one side of the fixed die holder, the position of the movable die holder can be prevented from deviating due to overlarge injection pressure during injection molding, the time delay assembly connected to the cylinder can control the power-on time of the cylinder, the piston rod contracts upwards to reset after the cylinder is powered off and drives the limiting plate to move to the upper side of the limiting groove, therefore, the hydraulic driving equipment can drive the movable die holder and the forming raised head to move to one side far away from the fixed die holder and dismount the formed gear piece.
Preferably, the time delay subassembly includes the electricity piece that connects of slidable mounting in the cover half seat, set up in the cover half seat and connect the spout that the electricity piece was mutually supported, fixed mounting has the guide bar that runs through the setting of electricity piece that connects in the spout, fixed mounting has the first electro-magnet that draws the electricity piece rebound of connecting on the inboard roof of spout, and piezoceramics piece electric connection is on first electro-magnet, two and connect the joint that the electricity piece was mutually supported to the symmetry on the inside wall of spout, and two joint common electric connection have drive power supply on two joints on the cylinder.
The piezoelectric ceramic piece can generate current after being extruded and can electrify the first electromagnet, the first electromagnet can generate magnetism after being electrified and attract the electricity connection block to move upwards to be in contact with the bottom end of the first electromagnet, the electricity connection block is connected with the two connectors and is connected with a circuit connected to the cylinder, the electricity connection block can slide downwards along the side walls of the connectors and the sliding groove due to self gravity after the piezoelectric ceramic piece stops generating current, the electricity connection block can be continuously connected with the two connectors when moving downwards, the driving power supply connected to the two connectors can be electrified on the cylinder at the moment, the cylinder can be continuously electrified for set time, the connection with the two connectors and the driving power supply can be disconnected when the electricity connection block slides to the bottom end, the cylinder is completely powered off at the moment, the cylinder can be automatically started and closed, manual control is not needed, the automation degree is high, and the use is convenient.
Preferably, slidable mounting has the installation piece in the cover half seat, and two connect the equal fixed mounting in the bottom of installation piece, set up in the cover half seat and connect the movable groove of mutually supporting with installation piece and two, the reciprocal lead screw that runs through the installation piece setting is installed to the movable groove internal rotation, and installs piece and reciprocal lead screw intermeshing, the top of reciprocal lead screw extends to the upside of cover half seat, the top of cover half seat is equipped with the fixed subassembly of reciprocal lead screw fixation.
The installation piece and reciprocal lead screw intermeshing, the installation piece can drive two joints and reciprocate when consequently rotating reciprocal lead screw to can adjust the length that two joints are located the spout, can adjust the time of connecting two joints when connecing the electric piece downstream, thereby can adjust the start-up time of cylinder, can come the start-up time of adjusting the cylinder and the time of movable mould seat and cover half seat fixed connection according to the cooling time of the gear spare after moulding plastics, application scope is wide, excellent in use effect.
Preferably, the fixed subassembly includes the fixing base of fixed mounting on the die holder roof, and the top of reciprocal lead screw extends to the upside of fixing base, the top slidable mounting of reciprocal lead screw has the carousel, fixed mounting has the rectangle slider on the diapire of carousel, and the bottom of rectangle slider inserts the top of establishing at reciprocal lead screw, set up the rectangle spout of mutually supporting with the rectangle slider in the reciprocal lead screw, elastic connection has a plurality of locating levers on the diapire of carousel, evenly set up a plurality of constant head tanks of mutually supporting with the locating lever on the roof of fixing base.
Upwards spur carousel and locating lever and spur the locating lever to the upside of fixing base, just this moment can free rotation carousel and locating lever, because the effect of rectangle slider, consequently rotate carousel and locating lever and just can drive reciprocal lead screw and rotate, rotate the back release carousel that finishes, the carousel is because the dead weight can the downstream at this moment, the bottom of part locating lever inserts the constant head tank on the fixing base roof after, just can prevent the locating lever, carousel and reciprocal lead screw rotate, the reciprocal lead screw of rotation that both can be convenient, and can be convenient again, it is quick fixed with reciprocal lead screw, high durability and convenient use.
Preferably, a first cavity has been seted up at the top of cover half seat, slidable mounting has first piston in the first cavity, the second cavity has been seted up in the cover half seat, slidable mounting has the second piston in the second cavity, the one end that first cavity and second cavity are relative is connected with the connecting pipe, fixed mounting has the connecting rod on the lateral wall of installation piece one side, and the one end fixed connection that the installation piece was kept away from to the connecting rod is on the second piston, evenly be provided with a plurality of instruction lines of mutually supporting with first piston on the roof of cover half seat, and the instruction line all is located the upside of first cavity.
The installation piece drives two and connects when the rebound can drive connecting rod and second piston rebound, just can pour into the first cavity with the gas in the second cavity through the connecting pipe and promote first piston to the one end of keeping away from the second cavity and remove during the rebound of second piston, the installation piece drives two and can drive connecting rod and second piston rebound when connecting the rebound, just can inhale the gas in the first cavity in the second cavity and stimulate first piston to the one end that is close to the second cavity through the connecting pipe during the rebound of second piston, can audio-visually observe the removal of first piston in the first cavity and the position of first piston through the instruction line, consequently, be convenient for quick understanding installation piece and the position that two connect and locate, thereby further be convenient for adjust the start-up time of cylinder.
Preferably, the bottom of piston rod is connected with the fixed plate, and limiting plate fixed mounting is in the bottom of fixed plate, set up the lift groove of mutually supporting with the fixed plate in the footstock, the bottom fixed mounting of piston rod has spacing slider, set up the spacing spout of mutually supporting with spacing slider in the fixed plate.
The limiting plate and the fixing plate are connected to the bottom end of the piston rod in a sliding mode, so that the limiting plate and the fixing plate cannot act on the piston rod after being subjected to transverse thrust, and the piston rod can be prevented from being bent and broken after being subjected to transverse acting force.
Preferably, the bottom wall of the limiting plate close to one side of the fixed die base is an inclined plane.
Thereby being convenient for the limiting plate to be inserted into the limiting groove on the top wall of the movable die holder when moving downwards.
Preferably, evenly install a plurality of second electro-magnets of mutually supporting with the movable die holder in the fixed die holder, the equal electric connection of second electro-magnet is on the cylinder, and the second electro-magnet all is located the one side that is close to the movable die holder, evenly seted up a plurality of annular cooling groove in the fixed die holder, and the annular cooling groove evenly sets up the outside at the second electro-magnet, be connected with circulating water cooling equipment jointly on the annular cooling groove.
The second electro-magnet circular telegram behind the cylinder circular telegram, just can produce magnetism and inhale the movable mould seat tightly in one side of cover half seat behind the second electro-magnet circular telegram, both can promote the fixed stability of back of movable mould seat, can avoid again that the movable mould seat kick-backs with the cover half seat after striking.
Preferably, an annular sealing block is fixedly mounted on the outer side wall of the fixed die base close to one side of the movable die base, an annular sealing groove matched with the annular sealing block is formed in the movable die base, and a sealing washer is fixedly mounted on the inner side wall of the annular sealing groove.
After the movable die holder is fixed to one side of the fixed die holder, the annular sealing block is inserted into the annular sealing groove and is in close contact with the sealing washer, so that the tightness of connection between the movable die holder and the fixed die holder can be improved, and the injection molding effect of the gear piece can be further improved.
Compared with the prior art, the invention has the beneficial effects that:
1. the setting of fixed establishment can be automatically with the movable mould seat fixed to the fixed die base on with from the fixed die base separation, need not artifical manual fixed movable mould and removes the fixed to the movable mould, convenient operation not only, the manpower occupies lessly moreover to injection mold's use and the processing cost of gear spare have obviously been reduced.
2. The setting of time delay subassembly can automatic start and close the cylinder, need not manual control, and degree of automation is high and convenient to use.
3. The time of connecting two joints when connecing the electric piece to move down can be adjusted to the start-up time that can adjust the cylinder, the start-up time that can come adjust the cylinder and the time of movable mould seat and cover half seat fixed connection according to the cooling time of the back gear spare of moulding plastics, application scope is wide, excellent in use effect.
Drawings
FIG. 1 is a schematic view of the overall structure of a mold part according to the present invention;
FIG. 2 is a side sectional view of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the structure of portion B of FIG. 2 according to the present invention;
fig. 5 is an enlarged view of the structure of part C of fig. 4 according to the present invention.
In the figure: 1. fixing a die holder; 2. a movable die holder; 3. forming a raised head; 4. forming a groove; 5. an injection molding apparatus; 6. a hydraulic drive device; 7. a top seat; 8. a cylinder; 9. a piston rod; 10. a limiting plate; 11. a limiting groove; 12. a fixed block; 13. piezoelectric ceramic plates; 14. a power connection block; 15. a chute; 16. a guide bar; 17. a first electromagnet; 18. a joint; 19. mounting blocks; 20. a movable groove; 21. a reciprocating screw rod; 22. a fixed seat; 23. a turntable; 24. positioning a rod; 25. positioning a groove; 26. a first cavity; 27. a first piston; 28. a second cavity; 29. a second piston; 30. a connecting pipe; 31. a connecting rod; 32. a fixing plate; 33. a lifting groove; 34. a limiting slide block; 35. a limiting chute; 36. a second electromagnet; 37. an annular cooling trough; 38. an annular sealing block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 5, the present invention provides an injection mold for a gear piece, which has the following technical scheme:
an injection mold of a gear piece comprises a fixed mold base 1, wherein a forming groove 4 is formed in the fixed mold base 1, and one side of the fixed mold base 1 is connected with an injection molding device 5 communicated with the forming groove 4;
the die comprises a movable die holder 2, wherein a forming raised head 3 is fixedly arranged on the movable die holder 2, and one side of the movable die holder 2 is connected with a hydraulic driving device 6;
a fixing mechanism which automatically and fixedly connects the movable die holder 2 to the fixed die holder 1 is connected between the fixed die holder 1 and the movable die holder 2;
when the movable die holder 2 and the fixed die holder 1 are assembled, the fixed mechanism fixes the movable die holder 2 to the fixed die holder 1 for a set time, and then automatically releases the fixed die holder 2 from the fixed die holder 1.
The starting hydraulic driving device 6 can drive the movable die holder 2 and the forming raised head 3 to reciprocate horizontally, the injection molding device 5 is started when the movable die holder 2 and the fixed die holder 1 are assembled and the forming raised head 3 is inserted into the corresponding forming groove 4, injection molding can be carried out, the fixed mechanism fixes the movable die holder 2 to the fixed die holder 1 when the movable die holder 2 and the fixed die holder 1 are assembled, so that the position of the movable die holder 2 can be prevented from deviating due to overlarge injection pressure during injection molding, the fixed of the movable die holder 2 by the fixed die holder 1 is automatically released after the set time, the gear piece is formed in the forming groove 4, the movable die holder 2 and the forming raised head 3 are driven by the hydraulic driving device 6 to move to one side far away from the fixed die holder 1 and the formed gear piece is dismounted, and the fixed mechanism can automatically fix the movable die holder 2 to the fixed die holder 1 and separate the fixed die holder 1, need not artifical manual fixed movable mould and removes the fixed to the movable mould, convenient operation not only, the manpower occupies lessly moreover to the use of injection mold and the processing cost of gear spare have obviously been reduced.
As an embodiment of the present invention, referring to fig. 2, 3 and 4, the fixing mechanism includes a top seat 7 fixedly installed on the top wall of the fixed die holder 1, an air cylinder 8 is fixedly installed on the top wall of the top seat 7, a piston rod 9 is fixedly installed at an output end of the air cylinder 8, a limiting plate 10 is installed at a bottom end of the piston rod 9, a bottom end of the limiting plate 10 extends to a lower side of the top seat 7, a limiting groove 11 mutually matched with the limiting plate 10 is formed on the top wall of the movable die holder 2, a fixing block 12 is fixedly installed on an outer side wall of the movable die holder 2 close to one side of the fixed die holder 1, a piezoelectric ceramic plate 13 mutually matched with the fixing block 12 is fixedly installed on an outer side wall of the fixed die holder 1 close to one side of the movable die holder 2, the piezoelectric ceramic plate 13 is electrically connected to the air cylinder 8, and the air cylinder 8 is connected with a delay assembly.
When the movable die holder 2 and the fixed die holder 1 are assembled, the fixed block 12 is tightly attached to one side of the top seat 7 and extrudes the piezoelectric ceramic pieces 13, the piezoelectric ceramic pieces 13 can generate current and start the cylinder 8 after being extruded, when the power of the cylinder 8 is overlarge, the piezoelectric ceramic pieces 13 can be arranged to jointly supply power to the cylinder 8, the cylinder 8 can drive the piston rod 9 to drive the limiting plate 10 to move downwards and insert the bottom end of the limiting plate 10 into the limiting groove 11 on the top wall of the movable die holder 2 after being started, so that the movable die holder 2 can be fixedly connected to one side of the fixed die holder 1, the situation that the position of the movable die holder 2 deviates due to overlarge injection pressure during injection molding can be prevented, the time delay assembly connected to the cylinder 8 can control the power-on time of the cylinder 8, the piston rod 9 contracts upwards to reset and drives the limiting plate 10 to move to the upper side of the limiting groove 11 after the power of the cylinder 8 is cut off, and therefore, the hydraulic driving device 6 can drive the movable die holder 2 and the molding raised head 3 to move to one side far away from the fixed die holder 1 and can form the well The gear member is dismounted.
As an embodiment of the present invention, referring to fig. 2 and 4, the delay assembly includes an electrical connection block 14 slidably installed in a fixed die holder 1, a sliding slot 15 matched with the electrical connection block 14 is formed in the fixed die holder 1, a guide rod 16 penetrating the electrical connection block 14 is fixedly installed in the sliding slot 15, so that the electrical connection block 14 can only vertically move up and down, a first electromagnet 17 for attracting the electrical connection block 14 to move up is fixedly installed on a top wall of an inner side of the sliding slot 15, the piezoelectric ceramic plate 13 is electrically connected to the first electromagnet 17, two connectors 18 matched with the electrical connection block 14 are symmetrically installed on an inner side wall of the sliding slot 15, the two connectors 18 are electrically connected to the cylinder 8, and a driving power supply is electrically connected to the two connectors 18.
The piezoelectric ceramic piece 13 generates current after being squeezed and energizes the first electromagnet 17, the first electromagnet 17 generates magnetism after being energized and attracts the power connection block 14 to move upwards to be contacted with the bottom end of the first electromagnet 17, at the moment, the power connection block 14 is connected with the two connectors 18 and is connected with a circuit connected to the air cylinder 8, after the piezoelectric ceramic piece 13 stops generating current, the power connection block 14 slides downwards along the side walls of the connectors 18 and the sliding groove 15 due to self gravity, the power connection block 14 continuously connects the two connectors 18 when moving downwards, at the moment, the driving power connected to the two connectors 18 energizes the air cylinder 8, so that the air cylinder 8 can be continuously energized for a set time, when the contact block 14 slides to the lowermost end, the connection to the two contacts 18 and the driving power is disconnected, at which time the cylinder 8 is completely de-energized, the air cylinder 8 can be automatically started and closed, manual control is not needed, and the automatic degree is high and the use is convenient.
Referring to fig. 2 and 4, as an embodiment of the present invention, a mounting block 19 is slidably mounted in a fixed die holder 1, two joints 18 are fixedly mounted at the bottom end of the mounting block 19, a movable groove 20 is formed in the fixed die holder 1 and is matched with the mounting block 19 and the two joints 18, a reciprocating screw rod 21 penetrating through the mounting block 19 is rotatably mounted in the movable groove 20, the mounting block 19 and the reciprocating screw rod 21 are in threaded engagement with each other, the top end of the reciprocating screw rod 21 extends to the upper side of the fixed die holder 1, and a fixing component for fixing the reciprocating screw rod 21 is arranged at the top end of the fixed die holder 1.
As an embodiment of the present invention, referring to fig. 2, 4 and 5, the fixing assembly includes a fixing seat 22 fixedly installed on the top wall of the fixing seat 1, and the top end of the reciprocating screw rod 21 extends to the upper side of the fixing seat 22, a rotating disc 23 is slidably installed at the top end of the reciprocating screw rod 21, a rectangular slider is fixedly installed on the bottom wall of the rotating disc 23, and the bottom end of the rectangular slider is inserted into the top end of the reciprocating screw rod 21, a rectangular sliding slot mutually matched with the rectangular slider is formed in the reciprocating screw rod 21, a plurality of positioning rods 24 are elastically connected to the bottom wall of the rotating disc 23, and a plurality of positioning grooves 25 mutually matched with the positioning rods 24 are uniformly formed on the top wall of the fixing seat 22.
Upwards spur carousel 23 and locating lever 24 and spur locating lever 24 to the upside of fixing base 22, just this moment can free rotation carousel 23 and locating lever 24, because the effect of rectangle slider, consequently, it just can drive reciprocal lead screw 21 rotation to rotate carousel 23 and locating lever 24 to rotate, release carousel 23 after the rotation is finished, carousel 23 can be owing to the dead weight can the downstream this moment, the back in the constant head tank 25 on the fixing base 22 roof is inserted to the bottom of part locating lever 24, just can prevent locating lever 24, carousel 23 and reciprocal lead screw 21 rotate, the reciprocal lead screw 21 of rotation that both can be convenient, and can be convenient, it is quick fixed reciprocal lead screw 21, high durability and convenient use.
As an embodiment of the present invention, referring to fig. 2 and 4, a first cavity 26 is formed at the top of the fixed die holder 1, a first piston 27 is slidably installed in the first cavity 26, a second cavity 28 is formed in the fixed die holder 1, a second piston 29 is slidably installed in the second cavity 28, a connecting pipe 30 is connected to an end of the first cavity 26 opposite to the end of the second cavity 28, a connecting rod 31 is fixedly installed on an outer side wall of one side of the mounting block 19, an end of the connecting rod 31 far away from the mounting block 19 is fixedly connected to the second piston 29, a plurality of indicating lines mutually matched with the first piston 27 are uniformly arranged on a top wall of the fixed die holder 1, and the indicating lines are located on an upper side of the first cavity 26.
When the mounting block 19 drives the two joints 18 to move upwards, the connecting rod 31 and the second piston 29 are driven to move upwards, when the second piston 29 moves upwards, gas in the second cavity 28 can be injected into the first cavity 26 through the connecting pipe 30 and pushes the first piston 27 to move towards one end far away from the second cavity 28, when the mounting block 19 drives the two joints 18 to move downwards, the connecting rod 31 and the second piston 29 are driven to move downwards, when the second piston 29 moves downwards, gas in the first cavity 26 can be sucked into the second cavity 28 through the connecting pipe 30 and pulls the first piston 27 to move towards one end close to the second cavity 28, the movement of the first piston 27 within the first chamber 26 and the position of the first piston 27 can be visually observed through the indicator lines, it is thus convenient to know quickly where the mounting block 19 and the two joints 18 are located, and thus to further facilitate adjusting the starting time of the cylinder 8.
Referring to fig. 2 and 3, as an embodiment of the present invention, a fixing plate 32 is connected to a bottom end of the piston rod 9, a limiting plate 10 is fixedly installed at a bottom end of the fixing plate 32, a lifting groove 33 which is matched with the fixing plate 32 is formed in the top seat 7, a limiting slider 34 is fixedly installed at a bottom end of the piston rod 9, and a limiting sliding groove 35 which is matched with the limiting slider 34 is formed in the fixing plate 32.
The limiting plate 10 and the fixing plate 32 are slidably connected to the bottom end of the piston rod 9, so that the limiting plate 10 and the fixing plate 32 cannot act on the piston rod 9 after being subjected to a transverse thrust, and the piston rod 9 can be prevented from being bent and broken after being subjected to a transverse acting force.
Referring to fig. 2 and 3, as an embodiment of the present invention, a bottom wall of the position-limiting plate 10 adjacent to the stationary mold base 1 is an inclined surface.
So that the limiting plate 10 can be conveniently inserted into the limiting groove 11 on the top wall of the movable die holder 2 when moving downwards.
Referring to fig. 2 and 4, a plurality of second electromagnets 36 which are matched with the moving mold base 2 are uniformly installed in the fixed mold base 1, the second electromagnets 36 are electrically connected to the air cylinder 8, the second electromagnets 36 are located on one side close to the moving mold base 2, a plurality of annular cooling grooves 37 are uniformly formed in the fixed mold base 1, the annular cooling grooves 37 are uniformly formed in the outer sides of the second electromagnets 36, the annular cooling grooves 37 are commonly connected with circulating water cooling equipment, and the circulating water cooling equipment can prevent the temperature of the second electromagnets 36 from continuously rising after the second electromagnets 36 are powered on by continuously introducing cooling water into the annular cooling grooves 37.
The second electromagnet 36 is electrified after the cylinder 8 is electrified, and the second electromagnet 36 can generate magnetism and tightly attract the movable die holder 2 to one side of the fixed die holder 1 after being electrified, so that the stability of the fixed movable die holder 2 can be improved, and the rebound of the movable die holder 2 after being impacted with the fixed die holder 1 can be avoided.
Referring to fig. 2 and 4, as an embodiment of the present invention, an annular sealing block 38 is fixedly installed on an outer side wall of the fixed die holder 1 close to the movable die holder 2, an annular sealing groove which is matched with the annular sealing block 38 is formed on the movable die holder 2, and a sealing gasket is fixedly installed on an inner side wall of the annular sealing groove.
After the movable mould base 2 is fixed to one side of the fixed mould base 1, the annular sealing block 38 is inserted into the annular sealing groove and is in close contact with the sealing washer, so that the sealing performance of the connection of the movable mould base 2 and the fixed mould base 1 can be improved, and the injection molding effect of the gear piece can be further improved.
The working principle is as follows: the starting hydraulic driving device 6 can drive the movable die holder 2 and the forming raised head 3 to reciprocate horizontally, when the movable die holder 2 and the fixed die holder 1 are assembled and the forming raised head 3 is inserted into the corresponding forming groove 4, the injection molding device 5 is started to perform injection molding, when the movable die holder 2 and the fixed die holder 1 are assembled, the fixed block 12 is tightly attached to one side of the top seat 7 and extrudes the piezoelectric ceramic sheet 13, the piezoelectric ceramic sheet 13 generates current after being extruded and supplies electricity to the first electromagnet 17, the first electromagnet 17 generates magnetism after being supplied with electricity and attracts the electric connection block 14 to move upwards to be contacted with the bottom end of the first electromagnet 17, at the moment, the electric connection block 14 is connected with the two connectors 18 and is connected with a circuit connected with the cylinder 8, when the piezoelectric ceramic sheet 13 stops generating current, the electric connection block 14 slides downwards along the side walls of the connectors 18 and the sliding chute 15 due to self gravity, and when the electric connection block 14 moves downwards, the two connectors 18 are continuously connected with the circuit connected with the cylinder 8 and are connected with the circuit, therefore, the cylinder 8 can be powered on continuously for setting time, the cylinder 8 can drive the piston rod 9 to drive the limit plate 10 to move downwards and insert the bottom end of the limit plate 10 into the limit groove 11 on the top wall of the movable die holder 2 after being started, so that the movable die holder 2 can be fixedly connected to one side of the fixed die holder 1, the position of the movable die holder 2 can be prevented from being deviated due to overlarge injection pressure during injection molding, the connection with the two connectors 18 can be disconnected when the power-on block 14 slides to the bottom end, the cylinder 8 is powered off at the moment, the piston rod 9 contracts upwards to reset and drives the limit plate 10 to move to the upper side of the limit groove 11 after the power of the cylinder 8 is off, so that the hydraulic driving device 6 can drive the movable die holder 2 and the molding raised head 3 to move to one side far away from the fixed die holder 1 and lift off the molded gear pieces, and the fixing mechanism can automatically fix the movable die holder 2 to the fixed die holder 1 and separate the fixed die holder 1 from the fixed die holder 1, need not artifical manual fixed movable mould and removes the fixed to the movable mould, convenient operation not only, the manpower occupies lessly moreover to the use of injection mold and the processing cost of gear spare have obviously been reduced.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An injection mold of a gear piece comprises a fixed mold base (1), wherein a forming groove (4) is formed in the fixed mold base (1), and one side of the fixed mold base (1) is connected with an injection molding device (5) communicated with the forming groove (4);
the die comprises a movable die holder (2), wherein a forming raised head (3) is fixedly arranged on the movable die holder (2), and one side of the movable die holder (2) is connected with a hydraulic driving device (6);
a fixing mechanism which automatically and fixedly connects the movable die holder (2) to the fixed die holder (1) is connected between the fixed die holder (1) and the movable die holder (2);
the method is characterized in that:
when the movable die holder (2) and the fixed die holder (1) are assembled, the fixed mechanism fixes the movable die holder (2) to the fixed die holder (1) for a set time and then automatically releases the fixed die holder (1) from fixing the movable die holder (2).
2. The injection mold of a gear piece according to claim 1, wherein: the fixing mechanism comprises a top seat (7) fixedly arranged on the top wall of the fixed die seat (1), an air cylinder (8) is fixedly arranged on the top wall of the top seat (7), a piston rod (9) is fixedly arranged at the output end of the air cylinder (8), a limiting plate (10) is arranged at the bottom end of the piston rod (9), the bottom end of the limit plate (10) extends to the lower side of the top seat (7), a limit groove (11) matched with the limit plate (10) is arranged on the top wall of the movable die holder (2), a fixed block (12) is fixedly arranged on the outer side wall of one side of the movable die holder (2) close to the fixed die holder (1), the outer side wall of one side of the fixed die holder (1) close to the movable die holder (2) is fixedly provided with a piezoelectric ceramic piece (13) matched with the fixed block (12), and the piezoelectric ceramic piece (13) is electrically connected to the cylinder (8), and the cylinder (8) is connected with a time delay assembly.
3. The injection mold of a gear piece according to claim 2, wherein: the time delay assembly comprises an electricity receiving block (14) which is slidably mounted in a fixed die holder (1), a sliding groove (15) which is matched with the electricity receiving block (14) is formed in the fixed die holder (1), a guide rod (16) which penetrates through the electricity receiving block (14) is fixedly mounted in the sliding groove (15), a first electromagnet (17) which sucks the electricity receiving block (14) to move upwards is fixedly mounted on the top wall of the inner side of the sliding groove (15), a piezoelectric ceramic piece (13) is electrically connected to the first electromagnet (17), two connectors (18) which are matched with the electricity receiving block (14) are symmetrically mounted on the inner side wall of the sliding groove (15), and the two connectors (18) are electrically connected to the air cylinder (8) together.
4. The injection mold of a gear piece according to claim 3, wherein: sliding mounting has installation piece (19) in die holder (1), and two equal fixed mounting in the bottom of installation piece (19) of joint (18), movable groove (20) of mutually supporting with installation piece (19) and two joints (18) have been seted up in die holder (1), reciprocal lead screw (21) that run through installation piece (19) setting are installed to movable groove (20) internal rotation, and install piece (19) and reciprocal lead screw (21) mutual thread engagement, the upside of die holder (1) is extended to on the top of reciprocal lead screw (21), the top of die holder (1) is equipped with the fixed subassembly of reciprocal lead screw (21) fixing.
5. The injection mold of a gear piece according to claim 4, wherein: fixed subassembly includes fixing base (22) of fixed mounting on die holder (1) roof, and the top of reciprocal lead screw (21) extends to the upside of fixing base (22), the top slidable mounting of reciprocal lead screw (21) has carousel (23), fixed mounting has the rectangle slider on the diapire of carousel (23), and the bottom of rectangle slider inserts the top of establishing reciprocal lead screw (21), set up the rectangle spout of mutually supporting with the rectangle slider in reciprocal lead screw (21), elastic connection has a plurality of locating levers (24) on the diapire of carousel (23), evenly set up a plurality of constant head tanks (25) of mutually supporting with locating lever (24) on the roof of fixing base (22).
6. The injection mold of a gear piece according to claim 4, wherein: first cavity (26) have been seted up at the top of cover half (1), slidable mounting has first piston (27) in first cavity (26), second cavity (28) have been seted up in cover half (1), slidable mounting has second piston (29) in second cavity (28), the one end that first cavity (26) and second cavity (28) are relative is connected with connecting pipe (30), fixed mounting has connecting rod (31) on the lateral wall of installation piece (19) one side, and connecting rod (31) keep away from the one end fixed connection of installation piece (19) on second piston (29), evenly be provided with a plurality ofly on the roof of cover half (1) and first piston (27) mutually supported's instruction line, and the instruction line all is located the upside of first cavity (26).
7. The injection mold of a gear piece according to claim 2, wherein: the bottom of piston rod (9) is connected with fixed plate (32), and limiting plate (10) fixed mounting is in the bottom of fixed plate (32), seted up in footstock (7) and go up and down groove (33) of mutually supporting with fixed plate (32), the bottom fixed mounting of piston rod (9) has limit slider (34), set up in fixed plate (32) and limit slider (34) spacing spout (35) of mutually supporting.
8. The injection mold of a gear piece according to claim 2, wherein: the bottom wall of the limiting plate (10) close to one side of the fixed die holder (1) is an inclined plane.
9. The injection mold of a gear piece according to claim 2, wherein: evenly install a plurality of second electro-magnets (36) of mutually supporting with movable mould seat (2) in die holder (1), the equal electric connection of second electro-magnet (36) is on cylinder 8, and second electro-magnet (36) all are located the one side of being close to movable mould seat (2), a plurality of annular cooling groove (37) have evenly been seted up in die holder (1), and annular cooling groove (37) evenly set up the outside at second electro-magnet (36), be connected with circulating water cooling equipment jointly on annular cooling groove (37).
10. The injection mold of a gear piece according to claim 2, wherein: the fixed die holder (1) is close to on the lateral wall of movable die holder (2) one side fixed mounting have annular seal piece (38), set up the annular seal groove of mutually supporting with annular seal piece (38) on movable die holder (2), fixed mounting has seal ring on the inside wall of annular seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210473969.5A CN114889045A (en) | 2022-04-29 | 2022-04-29 | Injection mold of gear piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210473969.5A CN114889045A (en) | 2022-04-29 | 2022-04-29 | Injection mold of gear piece |
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| CN114889045A true CN114889045A (en) | 2022-08-12 |
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| CN202210473969.5A Pending CN114889045A (en) | 2022-04-29 | 2022-04-29 | Injection mold of gear piece |
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| CH480164A (en) * | 1968-01-26 | 1969-10-31 | Desma Werke Gmbh | Device for the production of moldings, in particular shoe soles, made of plastic or rubber with a cell structure |
| JP2000037756A (en) * | 1998-07-23 | 2000-02-08 | Fujitsu Ten Ltd | Parting-lock mechanism |
| US20100330227A1 (en) * | 2007-12-14 | 2010-12-30 | Godde Sebastien | Mold including a locking device |
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| EP2404726A1 (en) * | 2010-07-09 | 2012-01-11 | Compagnie Plastic Omnium | Mould provided with a locking means |
| JP2013082178A (en) * | 2011-10-12 | 2013-05-09 | Sumitomo Heavy Ind Ltd | Injection molding machine |
| CN108058198A (en) * | 2017-12-14 | 2018-05-22 | 陈俞英 | A kind of PVC plastic material cutter device |
| CN114147920A (en) * | 2021-11-19 | 2022-03-08 | 孙正亮 | Plastic mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859141A (en) * | 1956-05-09 | 1961-01-18 | C I C Engineering Ltd | Improvements in or relating to apparatus for use in the manufacture of vulcanised footwear |
| CH480164A (en) * | 1968-01-26 | 1969-10-31 | Desma Werke Gmbh | Device for the production of moldings, in particular shoe soles, made of plastic or rubber with a cell structure |
| JP2000037756A (en) * | 1998-07-23 | 2000-02-08 | Fujitsu Ten Ltd | Parting-lock mechanism |
| US20100330227A1 (en) * | 2007-12-14 | 2010-12-30 | Godde Sebastien | Mold including a locking device |
| JP2011011521A (en) * | 2009-07-06 | 2011-01-20 | Mitsubishi Heavy Industries Plastic Technology Co Ltd | Mold clamping device of injection compression molding machine |
| EP2404726A1 (en) * | 2010-07-09 | 2012-01-11 | Compagnie Plastic Omnium | Mould provided with a locking means |
| JP2013082178A (en) * | 2011-10-12 | 2013-05-09 | Sumitomo Heavy Ind Ltd | Injection molding machine |
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