CN108381849B - Glue injection assembly for injection device, injection molding machine and injection molding method - Google Patents
Glue injection assembly for injection device, injection molding machine and injection molding method Download PDFInfo
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- CN108381849B CN108381849B CN201810173710.2A CN201810173710A CN108381849B CN 108381849 B CN108381849 B CN 108381849B CN 201810173710 A CN201810173710 A CN 201810173710A CN 108381849 B CN108381849 B CN 108381849B
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- mold
- injection mold
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- 238000002347 injection Methods 0.000 title claims abstract description 118
- 239000007924 injection Substances 0.000 title claims abstract description 118
- 239000003292 glue Substances 0.000 title claims abstract description 30
- 238000001746 injection moulding Methods 0.000 title claims description 56
- 239000004033 plastic Substances 0.000 claims abstract description 70
- 229920003023 plastic Polymers 0.000 claims abstract description 70
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
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
- B29C45/03—Injection moulding apparatus
-
- 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
- B29C45/20—Injection nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a glue injection assembly on an injection device, comprising: a middle nozzle protruding from the injection device; the nozzle is arranged on the middle nozzle, is assembled with the middle nozzle in a detachable way, penetrates through a fixed die plate and a fixed die fixing plate of the injection die, enables a discharge end to reach a corresponding position of a pouring channel on the fixed die of the injection die, and injects plastic in a molten state into a cavity of the injection die; the temperature sensor is arranged on the nozzle and connected with the external controller, and the first heating ring is wound on the outer surface of the nozzle and electrically connected with the external controller. When the glue injection assembly is used for injection, the waste of plastic in the runner is reduced through the nozzle arranged on the middle nozzle, the flowing time of the plastic in the runner is shortened, and the speed of filling the cavity with the plastic is accelerated, so that the glue injection assembly has the advantages of raw material saving, cost reduction, short mold filling time and high filling speed.
Description
Technical Field
The invention relates to the technical field of injection molding equipment, in particular to a glue injection assembly used on an injection device, an injection molding machine and an injection molding method.
Background
Injection molding machines are also known as injection molding machines or injection molding machines. The molding machine is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using an injection mold, wherein the injection mold mainly comprises: the device comprises a panel, a fixed die fixing plate, a fixed die, a movable die plate, a movable die fixing plate, a cushion block, a runner, a thimble plate, a guide pillar, a guide sleeve and the like. The injection molding machine is divided into a vertical type, a horizontal type and an all-electric type. The injection molding machine is used for heating plastics to a molten state, then applying high pressure to the plastics, injecting the plastics to fill a mold cavity, and cooling the plastics to form a product.
The injection molding machine mainly comprises: the device comprises a machine body, an injection device, a mold clamping device, a driving device and an ejection device. When the injection molding machine is used for injection molding of the tact switch (shown in fig. 1), generally, after the injection device is abutted against a sprue bush of a mold installed on the mold clamping device, the molten plastic is directly injected into a cavity for molding through a runner on the mold, so that a large amount of molten plastic remains in the runner to be solidified to form waste, thereby wasting plastic raw materials and increasing manufacturing cost.
Disclosure of Invention
Aiming at the defects in the prior art, the first object of the invention is to provide a glue injection assembly on an injection device, which has the advantages of saving raw materials and reducing cost.
The above object of the present invention is achieved by the following technical solutions:
An injection assembly on an injection device, comprising: a middle nozzle protruding from the injection device; the nozzle is arranged on the middle nozzle and detachably assembled with the middle nozzle, is used for penetrating through a fixed die plate and a fixed die fixing plate of the injection die, and is used for injecting plastic in a molten state into a cavity of the injection die after a discharge end reaches a corresponding position of a pouring channel on the fixed die of the injection die; a temperature sensor arranged on the nozzle and connected with an external controller for detecting the temperature of the plastic in the molten state in the nozzle; and the first heating ring is wound on the outer surface of the nozzle and is electrically connected with an external controller, and the external controller controls the first heating ring to adjust the temperature of the plastic in the molten state in the nozzle to be within a preset temperature threshold according to the detection signal obtained by the temperature sensor.
By adopting the technical scheme, when the glue injection assembly is used for injection, after the nozzle passes through the fixed die plate and the fixed die fixing plate on the injection die to convey the nozzle to the corresponding position of the pouring gate on the fixed die, the plastic in the molten state is injected into the cavity of the die, so that the phenomenon that the plastic in the molten state flows into the cavity from the pouring gate on the fixed die fixing plate after flowing through the longer pouring gate is avoided, the waste of the plastic in the flow channel is reduced, the flowing time of the plastic in the pouring gate is reduced, the speed of filling the plastic into the cavity is accelerated, and the glue injection assembly has the advantages of raw material saving, cost reduction, short injection time and high filling speed; meanwhile, the first heating ring and the temperature sensor are arranged on the outer surface of the nozzle, so that the temperature of plastic in a molten state in the nozzle is guaranteed, the fluidity of the plastic in the nozzle during reinjection is guaranteed, and the filling speed of the plastic during reinjection is further guaranteed.
Further: the fixed die plate with first through-hole and second through-hole have been seted up respectively on the fixed die fixed plate, first through-hole with the second through-hole intercommunication each other forms complete passageway, the injecting glue subassembly still includes: and the sleeve is arranged in the channel which is communicated with the first through hole and the second through hole, is contacted with the fixed die of the injection mold and is used for sleeving the nozzle when glue is injected.
Through adopting above-mentioned technical scheme, set up the sleeve in the passageway of first through-hole and second through-hole intercommunication to avoided the nozzle to the inner wall of first through-hole and the inner wall of second through-hole cause wearing and tearing after many times injection, thereby lead to the phenomenon that injection mold damaged, guaranteed injection mold's life, reduced injection molding's cost.
Further: the fixed die comprises a fixed die and is characterized in that an abutting piece is arranged on one side, in contact with the fixed die, of the sleeve, the abutting piece is hemispherical, and a hemispherical groove matched with the abutting piece is formed in the end face, in contact with the sleeve, of the fixed die.
Through adopting above-mentioned technical scheme, through the butt spare that is close to cover half one side setting on the sleeve with the hemispherical recess part cooperation on the cover half for discharge end on the sleeve can be comparatively easily with the sleeve alignment on the cover half, the accuracy of nozzle counterpoint when injecting glue has been guaranteed to injection device.
Further: the sleeve is provided with an anti-rotation part close to one side of the middle nozzle, and the fixed die fixing plate is provided with a positioning ring for propping the anti-rotation part against the fixed die fixing plate.
Through adopting above-mentioned technical scheme, prevent changeing the portion on the sleeve and support tightly on the cover half fixed plate through the holding ring to avoided the sleeve holding to rotate at the passageway and break away from the phenomenon of passageway, guaranteed the steadiness of preventing changeing the portion installation on the sleeve, and then guaranteed the steadiness of sleeve installation.
Further: the sleeve is made of hot work die steel.
By adopting the technical scheme, the hot work die steel has the advantages of good toughness, strong fatigue resistance and good high temperature resistance under the condition of meeting the injection molding requirement.
Further: the middle nozzle is wound with a second heating ring for controlling the temperature of the plastic in the middle nozzle.
By adopting the technical scheme, the second heating ring is arranged on the outer surface of the middle nozzle to control the temperature of the plastic in the middle nozzle in a molten state, so that the plastic in the middle nozzle always maintains the molten state during injection molding, the fluidity of the plastic in the middle nozzle during the next injection is ensured, and the next plastic filling speed is further ensured.
Further: the end face, close to one side, of the middle nozzle is provided with a threaded hole along the axial direction, and the part, assembled with the middle nozzle, of the nozzle is provided with external threads matched with the threaded hole so as to realize detachable assembly between the middle nozzle and the nozzle.
Through adopting above-mentioned technical scheme, in chew with nozzle dismantlement formula assembly, avoided the nozzle to lead to the nozzle to damage because of moulding plastics many times, and need carry out the phenomenon of changing whole injecting glue subassembly, reduced injection device's cost of maintenance.
A second object of the present invention is to provide an injection machine with the advantages of saving raw materials and reducing costs.
The above object of the present invention is achieved by the following technical solutions:
An injection molding machine, comprising: a body; the mold clamping device is arranged on the machine body and used for installing an injection mold and driving the injection mold to open and close; the injection device is arranged on the machine body and used for injecting plastic into a cavity of a die arranged on the die clamping device, and the injection device is provided with the glue injection assembly; and a driving device provided on the machine body for driving the mold clamping device and the injection device.
Through adopting above-mentioned technical scheme, set up the nozzle on injection molding unit's injecting glue subassembly, when injection molding machine carries out moulding plastics, the nozzle passes fixed die plate and the cover half fixed plate on the injection mold and sends the nozzle to the corresponding position of pouring gate department on the cover half after, in the die cavity of plastic injection mold under the molten state, thereby avoided the plastic under the molten state to flow into the phenomenon in the die cavity after longer pouring gate from the runner department on the cover half fixed plate, not only reduced the waste of plastic in the runner, but also reduced the flow time of plastic in pouring gate, accelerated the speed of plastic filling die cavity, make this injection molding unit have the raw materials of saving, reduce cost, the injection molding time is short, filling speed is fast advantage.
The third object of the present invention is to provide an injection molding method, which has the advantages of raw material saving, cost reduction, short injection molding time and high filling speed.
The above object of the present invention is achieved by the following technical solutions:
An injection molding method based on the injection molding machine, the method comprising:
Fitting the sleeve into the channel to form a connection port into which the nozzle is inserted;
The nozzle is assembled on the middle nozzle, and the driving device drives the nozzle to be inserted into the connecting port until the middle nozzle is abutted against the injection mold;
And injecting plastic into the injection mold, and maintaining the pressure and cooling the injection mold to obtain a product.
By adopting the injection molding method, the method not only can realize the detachable assembly of the nozzle and the middle nozzle and is convenient for the maintenance and replacement of the nozzle, but also can extend the nozzle into the fixed die of the die for injection molding, thereby avoiding the phenomenon that the plastic in a molten state flows into the cavity after passing through a longer pouring gate from the pouring gate on the fixed die fixing plate, reducing the waste of the plastic in the pouring gate, reducing the flowing time of the plastic in the pouring gate, accelerating the speed of filling the plastic into the cavity, and ensuring that the injection molding device has the advantages of raw material saving, cost reduction, short injection molding time and high filling speed.
Further, the third step includes:
the driving device drives the glue injection assembly to inject molten plastic into the injection mold, and the pouring gate fills the cavity;
continuously pressing by the driving device, and keeping the pressure of the injection molding machine for 3-5 seconds to compact the melt;
Cooling to solidify and shape the plastic in the molten state in the cavity;
The pressure maintaining pressure is withdrawn through the driving device, the injection mold is opened from the parting surface, and the molded product is separated from the injection mold;
and after the product is separated, the parting surface of the injection mold is attached again by the driving force of the driving device to complete the mold assembly.
By adopting the injection molding method, the pressure of the injection molding piece is maintained during injection molding, so that the injection molding piece is molded more stably, and the quality of the injection molding piece is ensured.
In summary, the invention has the following beneficial effects:
Firstly, through the nozzle arranged on the middle nozzle, the waste of plastic in the runner is reduced, the flowing time of the plastic in the runner is shortened, and the speed of filling the cavity with the plastic is accelerated, so that the glue injection assembly has the advantages of raw material saving, cost reduction, short injection time and high filling speed;
Secondly, the sleeve is arranged, so that the service life of the injection mold is ensured, and the injection molding cost is reduced;
and thirdly, the middle nozzle is detachably assembled with the nozzle, so that the nozzle is convenient to replace, and the maintenance cost of the injection device is reduced.
Drawings
FIG. 1 is a schematic view of the structure of an injection molded part;
FIG. 2 is a schematic view of the overall structure of an injection molding machine according to an embodiment of the present invention;
FIG. 3 is a top view of an injection molding machine according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of an injection molding machine according to an embodiment of the present invention taken along section line A-A;
fig. 5 is an enlarged view of detail B in fig. 4;
FIG. 6 is a schematic diagram of an assembly relationship between an injection assembly and an injection mold in an injection molding machine according to an embodiment of the present invention;
Fig. 7 is a step diagram of an injection molding method according to an embodiment of the present invention.
Reference numerals: 1. a body; 2. a mold clamping device; 3. an injection device; 31. a glue injection assembly; 311. a middle nozzle; 312. a nozzle; 313. a temperature sensor; 314. a first heating ring; 315. a sleeve; 3151. an anti-rotation part; 316. a second heating ring; 317. an abutment; 4. a driving device; 5. an injection mold; 51. a stationary mold plate; 52. a fixed die fixing plate; 53. pouring gate; 54. and a positioning ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and those skilled in the art can make modifications to the present embodiment which do not contribute to the invention as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.
The present embodiment relates to an injection molding machine, as shown in fig. 2, mainly including: a machine body 1, a mold clamping device 2, an injection device 3 and a driving device 4.
Referring to fig. 1, a mold clamping device 2 is disposed on a machine body 1, and the mold clamping device 2 is used for installing an injection mold 5 and driving the injection mold 5 to open and close. The injection device 3 is provided on the machine body 1 and provided with a glue injection assembly 31, and the injection device 3 is used for injecting plastic into a cavity of an injection mold 5 mounted on the mold clamping device 2. The driving device 4 is arranged on the machine body 1, and the driving device 4 is used for driving the mold clamping device 2 to open and close and the injection device 3 to inject the glue.
Wherein, referring to fig. 3-6, the glue injection assembly 31 on the injection device 3 comprises: middle nozzle 311, nozzle 312, temperature sensor 313, first heater ring 314, and sleeve 315.
The middle nozzle 311 is arranged on the injection device 3 in a protruding way. The nozzle 312 is arranged on the middle nozzle 311 and is detachably assembled with the middle nozzle 311, the nozzle 312 penetrates through the fixed die plate 51 and the fixed die plate 52 of the injection die 5, the discharge end of the nozzle 312 reaches the corresponding position of the pouring channel 53 on the fixed die of the injection die 5, and the nozzle 312 is used for injecting plastic in a molten state into a cavity of the injection die 5. The temperature sensor 313 is provided on the nozzle 312 and connected to an external controller, and the temperature sensor 313 is used to detect the temperature of the plastic in a molten state in the nozzle 312. The first heating ring 314 is wound around the outer surface of the nozzle 312 and is electrically connected to the external controller, where the first heating ring 314 is used to heat the nozzle 312 when the external controller determines that the temperature of the plastic in the molten state in the nozzle 312 is lower than a set threshold (220-275 degrees celsius) after a signal is transmitted from the temperature sensor 313, and stop heating the nozzle 312 when the temperature of the plastic in the molten state in the nozzle 312 is higher than a set threshold, so as to control the temperature of the plastic in the molten state in the nozzle 312. The fixed die plate 51 on the injection die 5 is provided with a second through hole and the fixed die fixing plate 52 is provided with a first through hole, the first through hole and the second through hole are used for the insertion of the nozzle 312, the first through hole and the second through hole are mutually communicated to form a complete channel, the sleeve 315 is arranged in the channel communicated with the first through hole and the second through hole and is in contact with the fixed die of the injection die 5, and the sleeve 315 is used for sleeving the nozzle 312.
In this embodiment, as shown in fig. 3-6, a second heating ring 316 is wound on the middle nozzle 311, the second heating ring 316 is used for controlling the temperature of the plastic in the middle nozzle 311, so as to ensure the fluidity of the plastic in the middle nozzle 311, the material of the middle nozzle 311 is hot-work die steel, a threaded hole is axially formed in the end surface of the middle nozzle 311, which is close to one side of the injection die 5, a part of the nozzle 312, which is assembled with the middle nozzle 311, is provided with external threads, and the external threads are used for being matched with the threaded hole, so that the detachable assembly between the middle nozzle 311 and the nozzle 312 is realized, and the material of the nozzle 312 is also hot-work die steel. In order to facilitate alignment of the sleeve 315 with the gate on the fixed mold during installation, an abutting part 317 is arranged on one side of the sleeve 315, which contacts the fixed mold, the abutting part 317 is hemispherical, a hemispherical groove matched with the abutting part 317 is arranged on the end face of the fixed mold, which contacts the sleeve 315, and an anti-rotation part 3151 is further arranged on one side of the sleeve 315, which is close to the middle nozzle 311. In order to avoid the phenomenon that the sleeve 315 is accommodated in the channel to rotate and is separated from the channel, the installation stability of the rotation preventing part 3151 on the sleeve 315 is ensured, a positioning ring 54 is arranged on the fixed die fixing plate 52, the positioning ring 54 is fixed on the fixed die fixing plate 52 through bolts, and the positioning ring 54 is used for propping the rotation preventing part 3151 against the fixed die fixing plate 52. In other embodiments, the middle nozzle 311 is integrally formed with the nozzle 312, and the sleeve 315 is clamped on the fixed mold fixing plate 52 in a clamping manner.
The principle of use of this embodiment is generally as follows: when the glue injection assembly 31 on the injection device 3 is used for injecting glue, the sleeve 315 is firstly arranged in a channel communicated with the first through hole and the second through hole, the abutting piece 317 on the sleeve 315 is matched with the hemispherical groove on the fixed die of the injection die 5, and the positioning ring 54 is locked on the fixed die fixing plate 52 through bolts, so that the anti-rotation part 3151 on the sleeve 315 is abutted against the fixed die fixing plate 52, and the sleeve 315 is arranged; then, the nozzle 312 is mounted on the middle nozzle 311, the nozzle 312 is aligned with the sleeve 315, the glue injection assembly 31 is driven to move towards one side of the sleeve 315, the nozzle 312 is inserted into the sleeve 315, the discharge end of the nozzle 312 is abutted against the discharge end of the sleeve 315, and finally, molten plastic is injected into the cavity of the injection mold 5.
Based on the injection molding machine, the embodiment also relates to an injection molding method, as shown in fig. 4-7, comprising:
Fitting sleeve 315 into the channel to form a connection port for insertion of nozzle 312;
the nozzle 312 is assembled on the middle nozzle 311, and the nozzle 312 is driven by the driving device 4 to be inserted into the connecting port until the middle nozzle 311 is abutted against the injection mold 5;
and injecting plastic into the injection mold 5, and maintaining the pressure and cooling the mold to obtain a product.
The third step comprises the following steps: filling S1, pressure maintaining S2, cooling S3, mold opening S4 and mold closing S5.
Filling S1: the driving device 4 drives the glue injection assembly 31 to inject molten plastic into the injection mold 5, and the pouring channel 53 is used for filling the cavity;
pressure maintaining S2: continuously pressing by a driving device 4, and keeping the pressure of the injection molding machine for 3-5 seconds to compact the melt;
cooling S3: so that the plastic in the molten state in the cavity is solidified and molded;
And (4) die opening S4: the holding pressure is withdrawn through the driving device 4, the injection mold 5 is opened from the parting surface, and the molded product is separated from the injection mold 5;
And (5) die assembly S5: after the product is demolded, the parting surface of the injection mold 5 is attached again by the driving force of the driving device 4 to complete the mold closing.
The method not only can realize the detachable assembly of the nozzle 312 and the middle nozzle 311, and is convenient for the maintenance and replacement of the nozzle 312, but also can extend the nozzle 312 into the fixed die of the injection mold 5 for injection molding, thereby avoiding the phenomenon that the plastic in a molten state flows into a cavity from a pouring gate on the fixed die fixing plate 52 after passing through a longer pouring gate 53, reducing the waste of the plastic in the pouring channel, reducing the flowing time of the plastic in the pouring gate 53, accelerating the speed of filling the plastic into the cavity, and ensuring that the injection molding device has the advantages of raw material saving, cost reduction, short injection molding time and high filling speed.
The above-described embodiments do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments should be included in the scope of the present invention.
Claims (4)
1. An injection molding machine, comprising:
Glue injection assembly, including:
a middle nozzle (311) convexly arranged on the injection device (3);
The nozzle (312) is arranged on the middle nozzle (311) and detachably assembled with the middle nozzle (311) and used for penetrating through a fixed template (51) and a fixed template (52) of the injection mold (5) and injecting plastic in a molten state into a cavity of the injection mold (5) after a discharge end reaches a corresponding position of a pouring channel (53) on a fixed die of the injection mold (5);
a temperature sensor (313) provided on the nozzle (312) and connected to an external controller for detecting the temperature of the plastic in a molten state in the nozzle (312); and a first heating ring (314) wound on the outer surface of the nozzle (312) and electrically connected with an external controller, wherein the external controller controls the first heating ring (314) to adjust the temperature of the plastic in the molten state in the nozzle (312) to be within a preset temperature threshold value according to a detection signal obtained by the temperature sensor (313);
Second through-hole has been seted up on fixed template (51) on injection mold (5), first through-hole has been seted up on fixed template (52), and first through-hole is used for supplying with second through-hole nozzle (312) are inserted, first through-hole with second through-hole intercommunication each other forms complete passageway, injecting glue subassembly (31) still include: a sleeve (315) which is arranged in the channel and is sleeved with the nozzle (312) when glue is injected;
An abutting piece (317) is arranged on one side, contacted with the fixed die, of the sleeve (315), the abutting piece (317) is hemispherical, a hemispherical groove matched with the abutting piece (317) is arranged on the end face, contacted with the sleeve (315), of the fixed die, and an anti-rotation part (3151) is further arranged on one side, close to the middle nozzle (311), of the sleeve (315);
A positioning ring (54) is arranged on the fixed die fixing plate (52), the positioning ring (54) is fixed on the fixed die fixing plate (52) through bolts, and the positioning ring (54) is used for propping the rotation preventing part (3151) against the fixed die fixing plate (52);
a second heating ring (316) for controlling the temperature of the plastic in the middle nozzle (311) is wound on the middle nozzle (311);
A threaded hole is formed in the end face, close to one side of the injection mold (5), of the middle nozzle (311), a part, assembled with the middle nozzle (311), of the nozzle (312) is provided with external threads matched with the threaded hole so as to realize detachable assembly between the middle nozzle (311) and the nozzle (312);
A body (1);
the mold clamping device (2) is arranged on the machine body (1) and is used for installing the injection mold (5) and driving the injection mold (5) to open and close;
The injection device (3) is arranged on the machine body (1) and is used for injecting plastic into a cavity of an injection mold (5) arranged on the mold clamping device (2), and the injection device (3) is provided with the glue injection assembly (31); and a driving device (4) provided on the machine body (1) for driving the mold clamping device (2) and the injection device (3).
2. The injection molding machine of claim 1, wherein the sleeve (315) is made of hot work die steel.
3. An injection molding method, wherein the method is based on the injection molding machine of claim 1, the method comprising:
fitting the sleeve (315) into the channel to form a connection port for insertion of the nozzle (312);
Assembling the nozzle (312) onto the middle nozzle (311), and driving the nozzle (312) to be inserted into the connecting port through the driving device (4) until the middle nozzle (311) is abutted against the injection mold (5);
injecting plastic into the injection mold (5), and maintaining and cooling the injection mold (5) to obtain a product.
4. The injection molding method of claim 3, wherein step three comprises:
The driving device (4) drives the glue injection assembly (31) to inject molten plastic into the injection mold (5), and the pouring channel (53) is used for filling the cavity;
continuously pressing by the driving device (4), and keeping the pressure of the injection molding machine for 3-5 seconds to compact the melt;
Cooling to solidify and shape the plastic in the molten state in the cavity;
withdrawing the holding pressure through the driving device (4), opening the injection mold (5) from the parting surface, and separating the molded product from the injection mold (5);
And after the product is separated, the parting surface of the injection mold (5) is attached again by the driving force of the driving device (4) to complete the mold assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173710.2A CN108381849B (en) | 2018-03-02 | 2018-03-02 | Glue injection assembly for injection device, injection molding machine and injection molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173710.2A CN108381849B (en) | 2018-03-02 | 2018-03-02 | Glue injection assembly for injection device, injection molding machine and injection molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108381849A CN108381849A (en) | 2018-08-10 |
| CN108381849B true CN108381849B (en) | 2024-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810173710.2A Active CN108381849B (en) | 2018-03-02 | 2018-03-02 | Glue injection assembly for injection device, injection molding machine and injection molding method |
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| CN111716644A (en) * | 2019-03-22 | 2020-09-29 | 英济股份有限公司 | Glue injection device |
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| CN103029273A (en) * | 2012-12-07 | 2013-04-10 | 宁波新海太塑料机械有限公司 | Injection part of injection molding machine |
| CN207954463U (en) * | 2018-03-02 | 2018-10-12 | 深圳市港源微键技术有限公司 | A kind of injecting glue component on injection molding machine and its injection device |
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| CN2106706U (en) * | 1991-11-16 | 1992-06-10 | 常州第二电子仪器厂 | Valve-type sprueless nozzle of injection moulding machine |
| JPH06106574A (en) * | 1992-09-29 | 1994-04-19 | Seiki Kk | Nozzle for injection molding machine |
| JP2011098512A (en) * | 2009-11-06 | 2011-05-19 | Japan Steel Works Ltd:The | Mold assembly for injection molding machine and injection molding machine |
| CN101830055B (en) * | 2010-05-01 | 2013-04-10 | 广州一道注塑机械有限公司 | Pressure maintaining type injection nozzle |
| CN205889724U (en) * | 2016-07-11 | 2017-01-18 | 合肥通泰光电科技有限公司 | Injection molding machine nozzle |
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2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357505A (en) * | 2007-07-30 | 2009-02-04 | 鸿富锦精密工业（深圳）有限公司 | Injecting machine |
| CN103029273A (en) * | 2012-12-07 | 2013-04-10 | 宁波新海太塑料机械有限公司 | Injection part of injection molding machine |
| CN207954463U (en) * | 2018-03-02 | 2018-10-12 | 深圳市港源微键技术有限公司 | A kind of injecting glue component on injection molding machine and its injection device |
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| CN108381849A (en) | 2018-08-10 |
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