CN108858962B - Injection mold and injection molding method thereof - Google Patents
Injection mold and injection molding method thereof Download PDFInfo
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- CN108858962B CN108858962B CN201810928481.0A CN201810928481A CN108858962B CN 108858962 B CN108858962 B CN 108858962B CN 201810928481 A CN201810928481 A CN 201810928481A CN 108858962 B CN108858962 B CN 108858962B
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- injection molding
- grinding tool
- upper grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1756—Handling of moulds or mould parts, e.g. mould exchanging means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7337—Heating or cooling of the mould using gas or steam
Abstract
The invention provides an injection mold and an injection molding method thereof, wherein the injection mold comprises a bottom plate, a rotary platform mechanism, a blanking mechanism, an L-shaped support frame I, a hydraulic cylinder, an electromagnetic chuck, an L-shaped support frame II and an injection molding pipe, the rotary platform mechanism is arranged on the bottom plate, the blanking mechanism is rotatably arranged on the bottom plate, the L-shaped support frame I is fixedly arranged on the bottom plate, the electromagnetic chuck is movably arranged on the L-shaped support frame I through the hydraulic cylinder, the L-shaped support frame II is fixedly arranged on the bottom plate, and the injection molding pipe is arranged on the L-shaped support frame II. Carry out rotatory moulding plastics and then can mould plastics to a plurality of die cavities in succession through rotary platform mechanism and increased injection efficiency, carry out this device with the mould through unloading mechanism, owing to adopt the air-suction type to carry out the unloading and then can carry out the unloading to the mould of different shapes.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold and an injection molding method thereof.
Background
Injection molding is a tool for producing plastic products and also for giving the plastic products complete structure and precise dimensions, and injection molding is a processing method used for mass production of parts with complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification, so that how to carry out injection molding efficiently and accurately is extremely important.
Publication No. CN106217753A provides an automatic injection molding device, which can realize multi-station injection molding and unloading of multiple fully loaded molds, but the molds on this rotary station cannot be replaced, and the molds of different shapes and sizes cannot be unloaded during unloading.
The publication No. CN108215071A provides an injection mold with high efficiency, high precision and high quality, the device realizes the transportation of injection molding products through a rotary clamp, but the clamp can not transport some irregular injection molding products, and the intermittent operation during the injection molding process and the injection molding efficiency are not high.
Publication No. CN207290811U provides an injection mold with high heat dissipation and mold release, which can dissipate heat well during injection molding, but has low injection molding efficiency.
Disclosure of Invention
The present invention is directed to an injection mold and an injection method thereof, which solve the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an injection mold, includes bottom plate, rotary platform mechanism, unloading mechanism, L shape support frame I, pneumatic cylinder, electromagnet, L shape support frame II and the pipe of moulding plastics, wherein:
the blanking mechanism comprises a support rod, a rotary cylinder, a rotary arm, a sucker, an air pump, a semicircular air pipe and a cylinder, the support rod is fixedly arranged on the bottom plate, the rotary arm is rotatably arranged on the support rod through the rotary cylinder, the sucker is movably arranged on the rotary arm through the cylinder, and the air pump is communicated with the sucker through the semicircular air pipe; and
the utility model discloses a pipe mould injection molding machine, including L shape support frame I, electromagnetic chuck, pneumatic cylinder, L shape support frame II, injection molding pipe, L shape support frame I fixed mounting is on the bottom plate, electromagnetic chuck passes through pneumatic cylinder movable mounting on L shape support frame I, II fixed mounting of L shape support frame are on the bottom plate, the pipe of moulding plastics is installed on L shape support frame II.
Preferably, rotary platform mechanism includes the carousel, goes up grinding apparatus, bed die, cylindrical electromagnet, cyclic annular electromagnet I, cyclic annular electromagnet II, heat dissipation bellows, gear wheel, pinion and steering wheel, the carousel passes through the bearing and rotates and install on the bottom plate, six the bed die is installed on the carousel through a pair of cylindrical electromagnet respectively, six go up the grinding apparatus and agree with six respectively on the bed die and with the carousel contact, wherein go up the both sides limit of grinding apparatus and contact with cyclic annular electromagnet I and cyclic annular electromagnet II respectively, heat dissipation bellows fixed mounting is on the carousel, the steering wheel passes through pinion and gear wheel and is connected with carousel power.
Preferably, one side of the rotary cylinder is fixedly mounted on the support rod through a bolt, the other side of the rotary cylinder is provided with a rotating arm through a bolt, the cylinder is fixedly mounted on the rotating arm, the power output end of the cylinder is fixedly mounted with a sucker, the air pump is mounted on the sucker through a bolt, one end of the semicircular air pipe is connected with the air pump in a sealing mode, the other end of the semicircular air pipe is connected with the sucker in a sealing mode, and a plurality of air holes are formed in the bottom of the.
Preferably, the hydraulic cylinder is installed on the L-shaped support frame I through a bolt, and an electromagnetic chuck is fixedly installed at the power output end of the hydraulic cylinder.
Preferably, the injection molding pipe is tightly matched with the L-shaped support frame II and is in contact with an injection molding opening of the upper grinding tool.
Preferably, the cylindrical electromagnet is arranged on the rotary table at equal angles through bolts, one end of the cylindrical electromagnet extends into the lower die, the annular electromagnet I and the annular electromagnet II are arranged on the rotary table at equal angles through bolts, and the periphery of the heat dissipation air box is provided with a fan.
Preferably, the large gear is fixedly sleeved on the turntable, the steering engine is mounted on the bottom plate through a bolt, the power output end of the steering engine is fixedly sleeved with a small gear, and the large gear is meshed with the small gear.
An injection molding method of an efficient and accurate injection mold comprises the following steps:
s1, performing injection molding on the cavities in the upper grinding tool and the lower mold which are combined together through injection molding pipes, driving a large gear to rotate sixty degrees by a steering engine after injection molding is completed in one of the cavities, driving a turntable to synchronously rotate through a small gear, performing injection molding on the next cavity, and finally performing injection molding on all the cavities on the turntable;
s2, after injection molding is completed, rotating a fan, and further carrying out air cooling on the upper grinding tool and the lower mould to accelerate the cooling process;
s3, after cooling, stopping rotation of the fan, driving the electromagnetic chuck to move towards the direction close to the upper grinding tool by the hydraulic cylinder, stopping movement of the hydraulic cylinder when the electromagnetic chuck is in contact with the upper grinding tool, sucking the upper grinding tool by the electrified electromagnetic chuck, powering off the annular electromagnet I and the annular electromagnet II which are positioned below the upper grinding tool, driving the electromagnetic chuck to move towards the direction far away from the lower die by the hydraulic cylinder, starting demolding by the upper grinding tool, stopping movement of the hydraulic cylinder when the upper grinding tool is completely separated from the lower die, and completing demolding;
s4, transmitting power to the turntable through the large gear and the small gear by the rotation of the steering engine, and stopping the rotation of the steering engine when the injection molding product after demolding moves to the position right below the sucker;
s5, the air cylinder drives the sucker to move towards the direction close to the injection molding product, the air cylinder stops moving when the sucker is in contact with the injection molding product, negative air pressure is introduced into the sucker through the semicircular air pipe by the air pump, the injection molding product is sucked under the action of the air holes in the sucker, the air cylinder drives the injection molding product to move towards the direction far away from the lower die, the air cylinder stops moving when the injection molding product is completely separated from the lower die, the rotary air cylinder drives the rotary arm to rotate ninety degrees at the moment, the injection molding product is driven to move to the conveying mechanism on the outer side, the air pump stops introducing negative air pressure into the sucker, the injection molding product falls out of the device, and the rotary air cylinder rotates ninety degrees in the opposite direction to enable the sucker to move to;
s6, the steering engine rotates to transmit power to the rotary table through the large gear and the small gear, so that the lower die after demolding moves back to the position right below the upper grinding tool attached to the electromagnetic chuck, the hydraulic cylinder drives the upper grinding tool to move towards the direction close to the lower die at the moment, the hydraulic cylinder stops moving after the upper grinding tool is fitted on the lower die, the electromagnetic chuck is powered off at the moment, the annular electromagnet I and the annular electromagnet II are powered on, the upper grinding tool is tightly fitted on the rotary table to wait for next injection molding, and then the hydraulic cylinder drives the electromagnetic chuck to be far away from the upper grinding tool;
s7, repeating the steps S3 to S6 to carry out demoulding and conveying on the rest injection molding products after injection molding;
and S8, when the upper grinding tool and the lower die need to be replaced, powering off the cylindrical electromagnet, the annular electromagnet I and the annular electromagnet II, placing the upper grinding tool and the lower die which need to be replaced on the sucker, and then powering on the cylindrical electromagnet, the annular electromagnet I and the annular electromagnet II.
Preferably, the cylindrical electromagnet is in a continuous power-on state during injection molding and demolding.
Compared with the prior art, the invention has the beneficial effects that:
1. the rotary platform mechanism is used for carrying out rotary injection molding so as to continuously carry out injection molding on a plurality of cavities, the injection molding efficiency is increased, the mold is arranged on the turntable through the electromagnet and can be replaced, the processing of injection molding products in different shapes is realized, the adsorption force of the electromagnet enables the parting surface to be in a sealing state, the precision of the injection molding products is further increased, and the air cooling is carried out by adopting a plurality of sub-machines during injection molding, so that the cooling of the injection molding products is accelerated.
2. According to the invention, the mold is conveyed out of the device through the blanking mechanism, the air suction type blanking is adopted, so that the molds in different shapes can be blanked, the circulating type unloading is adopted, so that the injection molding efficiency is increased, the full-automatic injection molding is adopted, the problem that manual operation is easy to cause errors is avoided, and the manual working strength is reduced.
Drawings
FIG. 1 is a three-dimensional schematic view of the overall structure of the present invention;
FIG. 2 is a three-dimensional schematic view of the working state of each mechanism when the discharging mechanism discharges materials according to the invention;
FIG. 3 is a three-dimensional schematic view of a rotary platform mechanism of the present invention;
FIG. 4 is a schematic view of portion A of FIG. 1;
FIG. 5 is a three-dimensional schematic view of a heat dissipation bellows according to the present invention;
FIG. 6 is a three-dimensional schematic view of the chuck of the present invention.
In the figure: the device comprises a base plate 1, a rotary platform mechanism 2, a blanking mechanism 3, a support frame I with a shape of 4L, a hydraulic cylinder 5, an electromagnetic chuck 6, a support frame II with a shape of 7L, an injection molding pipe 8, a rotary table 21, an upper grinding tool 22, a lower mould 23, a cylindrical electromagnet 24, an annular electromagnet I with a shape of 25, an annular electromagnet II with a shape of 26, a heat dissipation air box 27, a big gear 28, a small gear 29, a steering engine 29A, a fan 271, a support rod 31, a rotary cylinder 32, a rotary arm 33, a suction disc 34, an air pump 35, a semicircular air pipe 36, an air.
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.
Example (b):
referring to fig. 1 to 6, the present invention provides a technical solution:
the utility model provides an injection mold, includes bottom plate 1, rotary platform mechanism 2, unloading mechanism 3, L shape support frame I4, pneumatic cylinder 5, electromagnet 6, L shape support frame II 7 and injection molding pipe 8, wherein:
the rotary platform mechanism 2 comprises a rotary table 21, an upper grinding tool 22, a lower mould 23, cylindrical electromagnets 24, annular electromagnets I25, annular electromagnets II 26, a heat dissipation air box 27, a large gear 28, a small gear 29 and a steering engine 29A, wherein the rotary table 21 is installed on a bottom plate 1 through a base, a bearing is arranged between the rotary table 21 and the base so that the rotary table 21 is rotatably installed on the bottom plate 1, six lower moulds 23 are respectively installed on the rotary table 21 through a pair of cylindrical electromagnets 24, wherein the cylindrical electromagnets 24 are respectively installed on the rotary table 21 through bolts at equal angles, one end of each cylindrical electromagnet is extended into the corresponding lower mould 23, the number ratio of the lower moulds 23 to the cylindrical electromagnets 24 is 1:2, the six upper grinding tools 22 are respectively fit on the six lower moulds 23 and are in contact with the rotary table 21, two side edges of the upper grinding tool 22 are respectively in contact with the annular electromagnets I25 and the annular electromagnets II 26, the annular electromagnets I25 and the annular electromagnets, the number ratio of the upper grinding tool 22 to the annular electromagnet I25 to the annular electromagnet II 26 is 1:1:1, a gap is reserved between the upper grinding tool 22 and the lower grinding tool 23 to form an injection molding cavity, a heat dissipation air box 27 is fixedly installed on the rotary table 21, the heat dissipation air box 27 is located in the center of the rotary table 21, fans 271 are respectively arranged on the periphery of the heat dissipation air box 27, a large gear 28 is fixedly sleeved on the rotary table 21, a steering gear 29A is fixedly installed on the bottom plate 1 through bolts, a power output end of the steering gear 29A is fixedly sleeved with a small gear 29, and the large gear 28 and the small gear 29 are meshed to form gear transmission;
the blanking mechanism 3 comprises a support rod 31, a rotary cylinder 32, a rotary arm 33, a suction cup 34, an air pump 35, a semicircular air pipe 36 and an air cylinder 37, wherein the support rod 31 is fixedly arranged on the bottom plate 1 through a bolt, one side of the rotary cylinder 32 is fixedly arranged on the support rod 31 through a bolt, the other side of the rotary cylinder 32 is provided with the rotary arm 33 through a bolt, one side provided with the rotary arm 33 is a power output end, the rotary arm 33 is rotatably arranged on the support rod 31 through the rotary cylinder 32, the support end of the air cylinder 37 is fixedly arranged on the rotary arm 33 through a bolt, the suction cup 34 is fixedly arranged at the power output end of the air cylinder 37 through a connecting flange, the bottom of the suction cup 34 is provided with a plurality of air holes 341 and the side is provided with an air inlet hole, the air pump 35 is arranged on the suction cup 34 through a, The other end extends to the inside of the suction cup 34 from the air inlet hole of the suction cup 34 and is in sealing connection with the contact part of the suction cup 34, and then the air pump 35 is communicated with the suction cup 34 through a semicircular air pipe 36;
l shape support frame I4 passes through bolt fixed mounting on bottom plate 1, the support end of pneumatic cylinder 5 passes through the bolt and installs on L shape support frame I4, the power take off end of pneumatic cylinder 5 passes through flange fixed mounting has electromagnetic chuck 6, electromagnetic chuck 6 passes through pneumatic cylinder 5 movable mounting on L shape support frame I4, L shape support frame II 7 passes through bolt fixed mounting on bottom plate 1, 8 tight fittings of injection molding pipe are on L shape support frame II 7 and with the mouth contact of moulding plastics of last grinding apparatus 22, wherein L shape support frame I4 and L shape support frame II 7 and bracing piece 31 distribute along the circumference of carousel 21, wherein the line of central point and the bracing piece 31 central point of L shape support frame I4 and the line of central point and the carousel 21 central point of L shape support frame II 7 are mutually perpendicular.
An injection molding method of an efficient and accurate injection mold comprises the following steps:
s1, performing injection molding on the cavities in the upper grinding tool 22 and the lower grinding tool 23 which are combined together through the injection molding pipe 8, driving the large gear 28 to rotate sixty degrees by the steering engine 29A after injection molding is completed in one of the cavities, further driving the turntable 21 to synchronously rotate through the small gear 29, performing injection molding on the next cavity at the moment, and finally performing injection molding on all the cavities on the turntable 21;
s2, after injection molding is completed, the fan 271 rotates, and then the air cooling and cooling process is performed on the upper grinding tool 22 and the lower grinding tool 23;
s3, after cooling, stopping rotation of the fan 271, driving the electromagnetic chuck 6 to move towards the direction close to the upper mold 22 by the hydraulic cylinder 5, stopping movement of the hydraulic cylinder 5 when the electromagnetic chuck 6 is in contact with the upper mold 22, sucking the upper mold 22 by the electrified electromagnetic chuck 6, powering off the annular electromagnet I25 and the annular electromagnet II 26 positioned below the upper mold 22, driving the electromagnetic chuck 6 to move towards the direction far away from the lower mold 23 by the hydraulic cylinder 5, starting demolding of the upper mold 22, stopping movement of the hydraulic cylinder 5 when the upper mold 22 is completely separated from the lower mold 23, and completing demolding;
s4, the steering engine 29A rotates to transmit power to the turntable 21 through the large gear 28 and the small gear 29, and the steering engine 29A stops rotating when the injection molding product after demolding moves to a position right below the suction disc 34;
s5, the air cylinder 37 drives the suction cup 34 to move towards the direction close to the injection molding, when the suction cup 34 contacts with the injection molding, the air cylinder 37 stops moving, at the moment, the air pump 35 introduces negative air pressure into the suction cup 34 through the semicircular air pipe 36, the injection molding is sucked under the action of the air holes 341 on the suction cup 34, at the moment, the air cylinder 37 drives the injection molding to move towards the direction away from the lower mold 23, when the injection molding is completely separated from the lower mold 23, the air cylinder 37 stops moving, at the moment, the rotary air cylinder 32 drives the rotary arm 33 to rotate ninety degrees, the injection molding is driven to move to the conveying mechanism on the outer side, the air pump 35 stops introducing negative air pressure into the suction cup 34, the injection molding falls out of the device, and then the rotary air cylinder 32 rotates ninety degrees in the opposite direction, so that the suction;
s6, the steering engine 29A rotates to transmit power to the rotary table 21 through the large gear 28 and the small gear 29, so that the lower die 23 after demolding is sucked to the position right below the upper grinding tool 22 attached to the electromagnetic chuck 6, the hydraulic cylinder 5 drives the upper grinding tool 22 to move towards the direction close to the lower die 23, the hydraulic cylinder 5 stops moving after the upper grinding tool 22 is fitted on the lower die 23, the electromagnetic chuck 6 is powered off, the annular electromagnet I25 and the annular electromagnet II 26 are powered on, so that the upper grinding tool 22 is tightly attached to the rotary table 21 for waiting for the next injection molding, and then the hydraulic cylinder 5 drives the electromagnetic chuck 6 to be far away from the upper grinding tool 22;
s7, repeating the steps S3 to S6 to carry out demoulding and conveying on the rest injection molding products after injection molding;
s8, when the upper grinding tool 22 and the lower grinding tool 23 need to be replaced, the cylindrical electromagnet 24, the annular electromagnet I25 and the annular electromagnet II 26 are powered off, the upper grinding tool 22 and the lower grinding tool 23 which need to be replaced are placed on the suction disc 6, the upper grinding tool 22 and the lower grinding tool 23 are matched, then the cylindrical electromagnet 24, the annular electromagnet I25 and the annular electromagnet II 26 are powered on, and the mold replacement can be completed, wherein the cylindrical electromagnet 24 is in a continuous power-on state during injection molding and demolding.
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 (8)
1. The utility model provides an injection mold, includes bottom plate (1), rotary platform mechanism (2), unloading mechanism (3), L shape support frame I (4), pneumatic cylinder (5), electromagnet (6), L shape support frame II (7) and mould plastics pipe (8), its characterized in that:
the rotary platform mechanism (2) is installed on the bottom plate (1), the rotary platform mechanism (2) comprises a rotary plate (21), an upper grinding tool (22), a lower die (23), a cylindrical electromagnet (24), an annular electromagnet I (25), an annular electromagnet II (26), a heat dissipation air box (27), a gear wheel (28), a pinion (29) and a steering engine (29A), the rotary plate (21) is installed on the bottom plate (1) through a bearing in a rotating mode, the six lower dies (23) are installed on the rotary plate (21) through a pair of cylindrical electromagnets (24) respectively, the six upper grinding tools (22) are matched with the six lower dies (23) respectively and are in contact with the rotary plate (21), two side edges of each upper grinding tool (22) are in contact with the annular electromagnet I (25) and the annular electromagnet II (26) respectively, the heat dissipation air box (27) is fixedly installed on the rotary plate (21), the blanking mechanism (3) comprises a support rod (31), a rotary cylinder (32), a rotating arm (33), a suction disc (34), an air pump (35), a semicircular air pipe (36) and an air cylinder (37), the support rod (31) is fixedly installed on the bottom plate (1), the rotating arm (33) is rotatably installed on the support rod (31) through the rotary cylinder (32), the suction disc (34) is movably installed on the rotating arm (33) through the air cylinder (37), and the air pump (35) is communicated with the suction disc (34) through the semicircular air pipe (36); and
l shape support frame I (4) fixed mounting is on bottom plate (1), electromagnetic chuck (6) are through pneumatic cylinder (5) movable mounting on L shape support frame I (4), L shape support frame II (7) fixed mounting is on bottom plate (1), mould plastics pipe (8) and install on L shape support frame II (7).
2. An injection mold according to claim 1, wherein: one side of revolving cylinder (32) is passed through bolt fixed mounting on bracing piece (31), rotor arm (33) is installed through the bolt to the opposite side, cylinder (37) fixed mounting is on rotor arm (33), and its power take off fixed mounting has sucking disc (34), air pump (35) are installed on sucking disc (34) through the bolt, the one end and air pump (35) sealing connection, the other end and sucking disc (34) sealing connection of semicircle form trachea (36), sucking disc (34) bottom is equipped with a plurality of wind holes (341).
3. An injection mold according to claim 1, wherein: pneumatic cylinder (5) pass through the bolt and install on L shape support frame I (4), and its power take off end fixed mounting has electromagnet (6).
4. An injection mold according to claim 1, wherein: the injection molding pipe (8) is tightly matched on the L-shaped support frame II (7) and is in contact with an injection molding opening of the upper grinding tool (22).
5. An injection mold according to claim 1, wherein: cylindrical electromagnet (24) is installed through the equal angle of bolt respectively and its one end extends to the inside of bed die (23) on carousel (21), annular electromagnet I (25) and annular electromagnet II (26) are installed through the equal angle of bolt respectively on carousel (21), be equipped with a fan (271) around heat dissipation bellows (27) respectively.
6. An injection mold according to claim 1, wherein: the large gear (28) is fixedly sleeved on the turntable (21), the steering engine (29A) is installed on the bottom plate (1) through bolts, the power output end of the steering engine is fixedly sleeved with the small gear (29), and the large gear (28) is meshed with the small gear (29).
7. An injection molding method of an efficient and accurate injection mold is characterized by comprising the following steps:
s1, performing injection molding on cavities in the upper mold (22) and the lower mold (23) which are combined together through an injection molding pipe (8), driving a large gear (28) to rotate sixty degrees through a steering engine (29A) after injection molding is completed in one of the cavities, driving a turntable (21) to synchronously rotate through a small gear (29), performing injection molding on the next cavity at the moment, and finally performing injection molding on all the cavities on the turntable (21);
s2, after injection molding is finished, the fan (271) rotates, and then the upper mold (22) and the lower mold (23) are subjected to air cooling to accelerate the cooling process;
s3, after cooling, the fan (271) stops rotating, then the hydraulic cylinder (5) drives the electromagnetic chuck (6) to move towards the direction close to the upper grinding tool (22), when the electromagnetic chuck (6) is in contact with the upper grinding tool (22), the hydraulic cylinder (5) stops moving, at the moment, the upper grinding tool (22) is sucked by the electrified electromagnetic chuck (6), at the moment, the annular electromagnet I (25) and the annular electromagnet II (26) which are positioned below the upper grinding tool (22) are powered off, then the hydraulic cylinder (5) drives the electromagnetic chuck (6) to move towards the direction far away from the lower mould (23), then the upper grinding tool (22) starts demoulding, when the upper grinding tool (22) is completely separated from the lower mould (23), the hydraulic cylinder (5) stops moving, and at the moment, demoulding is completed;
s4, the steering engine (29A) rotates to transmit power to the turntable (21) through the large gear (28) and the small gear (29), and the steering engine (29A) stops rotating when the injection molding finished by demolding moves to the position right below the suction disc (34);
s5, the air cylinder (37) drives the suction cup (34) to move towards the direction close to the injection molding, when the suction cup (34) contacts with the injection molding product, the air cylinder (37) stops moving, at the moment, the air pump (35) leads negative air pressure to the suction cup (34) through the semicircular air pipe (36), then the injection molding product is sucked under the action of a plurality of air holes (341) on the sucking disc (34), at the moment, the air cylinder (37) drives the injection molding product to move towards the direction far away from the lower die (23), when the injection molding product is completely separated from the lower mold (23), the air cylinder (37) stops moving, at the moment, the rotary air cylinder (32) drives the rotary arm (33) to rotate ninety degrees, thereby driving the injection molding product to move to the conveying mechanism at the outer side and the air pump (35) stops introducing negative air pressure to the suction cup (34) so as to lead the injection molding product to fall out of the device, then the rotating cylinder (32) rotates ninety degrees in the opposite direction to enable the suction cup (34) to move to the upper part of the turntable (21) again;
s6, then, a steering engine (29A) rotates to transmit power to a rotary table (21) through a large gear (28) and a small gear (29), so that the lower die (23) after demolding moves back to the position right below an upper grinding tool (22) attached to an electromagnetic chuck (6), at the moment, a hydraulic cylinder (5) drives the upper grinding tool (22) to move towards the direction close to the lower die (23), when the upper grinding tool (22) is fitted on the lower die (23), the hydraulic cylinder (5) stops moving, at the moment, the electromagnetic chuck (6) is powered off, an annular electromagnet I (25) and an annular electromagnet II (26) are powered on, so that the upper grinding tool (22) is tightly attached to the rotary table (21) for waiting for the next injection molding, and then the hydraulic cylinder (5) drives the electromagnetic chuck (6) to be far away from the upper grinding tool (22);
s7, repeating the steps S3 to S6 to carry out demoulding and conveying on the rest injection molding products after injection molding;
s8, when the upper grinding tool (22) and the lower grinding tool (23) need to be replaced, the cylindrical electromagnet (24), the annular electromagnet I (25) and the annular electromagnet II (26) are powered off, the upper grinding tool (22) and the lower grinding tool (23) need to be replaced are placed on the suction cup (6), and then the cylindrical electromagnet (24), the annular electromagnet I (25) and the annular electromagnet II (26) are powered on.
8. The injection molding method of the efficient and accurate injection mold according to claim 7, wherein: the cylindrical electromagnet (24) is in a continuous electrifying state during injection molding and demolding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928481.0A CN108858962B (en) | 2018-08-15 | 2018-08-15 | Injection mold and injection molding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928481.0A CN108858962B (en) | 2018-08-15 | 2018-08-15 | Injection mold and injection molding method thereof |
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| CN108858962A CN108858962A (en) | 2018-11-23 |
| CN108858962B true CN108858962B (en) | 2020-12-15 |
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