CN111645270A - Plastic injection molding device - Google Patents
Plastic injection molding device Download PDFInfo
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- CN111645270A CN111645270A CN202010531290.8A CN202010531290A CN111645270A CN 111645270 A CN111645270 A CN 111645270A CN 202010531290 A CN202010531290 A CN 202010531290A CN 111645270 A CN111645270 A CN 111645270A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000012768 molten material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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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
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- 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
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of plastic product production equipment, and particularly relates to a plastic injection molding device which comprises an injection system, a mold closing system, a transmission system, a heating system and a cooling system; the die assembly system comprises a moving mechanism, a first template, a second template and a power mechanism, wherein the first template is provided with a plurality of fixed dies, and the second template is provided with a plurality of movable dies; the moving mechanism is used for driving one of the movable dies to slide; the first template is provided with a plurality of runners, and one end of each runner is communicated with the die cavity of one fixed die; the injection system comprises a charging barrel, the discharging end of the charging barrel is connected with a discharging module, and a liquid channel is formed in the discharging module; after the power mechanism drives the first template to rotate intermittently, the liquid channel on the discharging module is communicated with one of the runners. This scheme need not wait for last plastic part and accomplish the cooling and unload the back and inject again, has saved material cooling's time, makes the continuity of production higher, can improve the efficiency of processing.
Description
Technical Field
The invention belongs to the technical field of plastic product production equipment, and particularly relates to a plastic injection molding device.
Background
Plastic products on the market are produced by an injection molding process, the injection molding process is a processing process widely applied to plastic product production, a plastic melt is injected into a mold under constant pressure and is shaped, and the key control point of the process is the stability of injection, so that the influence of cavitation bubbles in the plastic melt on the structure of a finished product is avoided.
Injection molding devices are required for injection molding processing, and the existing injection molding devices comprise an injection system, a mold closing system, a transmission system, an electrical control system, a heating system and a cooling system. The processing flow of the injection molding device is as follows: the material stored in the hopper is conveyed into the material barrel, the heating system heats the material in the material barrel to enable the material to gradually become a molten state, meanwhile, the material is conveyed forward under the action of the screw rod and finally enters a die cavity formed by closing the fixed die and the movable die, and after the material is cooled and formed in the die cavity, the fixed die and the movable die are separated to achieve discharging. The existing injection molding device has a problem that although a cooling system is arranged, certain time is consumed for cooling and molding materials in a mold cavity, in the process of cooling the materials, production of workpieces is actually stopped, when the workpieces are cooled and unloaded, production of the next workpiece is started, the production continuity is not high, and the production efficiency is relatively low.
Disclosure of Invention
The invention aims to provide a plastic injection molding device to solve the problems of low production continuity and relatively low production efficiency of the existing injection molding device.
In order to achieve the purpose, the scheme of the invention is as follows: the plastic injection molding device comprises an injection system, a mold closing system, a transmission system, a heating system and a cooling system; the die assembly system comprises a moving mechanism, a first template, a second template fixedly connected with the first template and a power mechanism used for driving the first template to rotate intermittently, wherein the first template is provided with a plurality of fixed dies, and the second template is provided with a plurality of moving dies which are matched with the fixed dies one by one; the moving mechanism is used for driving one of the moving dies to slide so as to separate the moving die from the fixed die; the first template is provided with a plurality of runners, one end of each runner is communicated with the die cavity of one of the fixed dies, and the other end of each runner is communicated with the outside; the injection system comprises a charging barrel, the discharging end of the charging barrel is connected with a discharging module, a liquid channel communicated with the charging barrel is formed in the discharging module, and the end part of the discharging module is always attached to the first template; after the power mechanism drives the first template to rotate intermittently, the liquid channel on the discharging module is communicated with one of the runners; the fixed die communicated with the liquid channel and the fixed die driven by the moving mechanism to separate from the moving die are not the same fixed die.
The working principle of the scheme is that:
when the plastic injection molding device works, the power mechanism is started, and the first template and the second template are rotated intermittently through the power mechanism. After the first template rotates intermittently and is temporarily static, the liquid channel on the discharging module is communicated with one of the runners on the first template, at the moment, the heated and molten material in the charging barrel enters one of the die cavities formed by the fixed die and the movable die through the liquid channel and the runner on the discharging module, and the material is cooled and molded in the die cavity. After the molten material is injected into the die cavity, the power mechanism drives the first die plate and the second die plate to perform next intermittent rotation, after the rotation, the liquid channel on the discharging module is communicated with the other runner on the first die plate, and the molten material enters the die cavity formed by combining the fixed die and the movable die. The first template and the second template rotate continuously and intermittently, and the movement of the molten material repeats the actions continuously. When the movable mould on the second template rotates to the moving mechanism, the moving mechanism drives the movable mould to slide, the movable mould is separated from the fixed mould, and the plastic part in the mould cavity falls off from the mould cavity.
The beneficial effect of this scheme lies in:
in this scheme, injection system is towards the die cavity injection material after, and need not movable mould, cover half motionless to realize the cooling of material, movable mould, cover half can rotate along with second template, first template, and the material cools off at the pivoted in-process, unloads until at last under moving mechanism's effect. In the process of intermittent rotation of the second template and the first template, the injection system injects materials into other mold cavities intermittently, and does not need to wait for the last plastic part to finish cooling and discharging and then inject, so that the material cooling time is saved, the production continuity is higher, and the processing efficiency can be improved.
Optionally, a sealing mechanism is arranged on the discharging module, the sealing mechanism comprises a plugging block, a resetting piece for resetting the plugging block and a groove formed in the discharging module, and the plugging block is connected in the groove in a sliding and sealing manner; when the device is not acted by other external force, one side of the blocking block extends into the liquid channel and can cut off the liquid channel under the action of the resetting piece; one end of the plugging block extending out of the groove is provided with a first magnet, the first template is provided with a plurality of second magnets, and each second magnet is close to one side of a different flow channel; when the liquid channel is communicated with one of the flow passages, the blocking block slides along the inner part of the groove under the repulsive force of the second magnet, and the blocking block opens the liquid channel.
The sealing mechanism is arranged, when the liquid channel is not communicated with the flow channel, the blocking block extends into the liquid channel and cuts off the liquid channel under the action of the resetting piece, and the molten material can be better prevented from flowing outwards. When the liquid channel is communicated with one of the flow channels, the blocking block slides along the inner part of the groove under the repulsive force of the corresponding second magnet, the liquid channel is opened by the blocking block, and molten materials can flow into the flow channels through the liquid channel, so that the materials are injected. The sealing mechanism of the scheme can better avoid leakage of the molten material, so that the molten material is injected when needed.
Optionally, the return member is a compression spring. The compression performance of pressure spring is good, the user demand that accords with this scheme that moreover can be fine.
Optionally, the movable die is provided with a guide hole and a through hole, and the second die plate is fixed with a guide pillar penetrating through the guide hole and a mandril penetrating through the through hole; an elastic piece is connected between the second template and each movable mold, and the movable molds and the fixed molds are always kept closed under the action of the elastic piece without being acted by other external forces. The guide holes and the guide pillars are arranged, the movement of the movable die is limited, the movable die can move according to a set mode, and the movable die and the fixed die can be guaranteed to be well matched. Set up through-hole, ejector pin, when the movable mould moved, the ejector pin can be ejecting attached to the plastic part on the movable mould, realizes automatic drawing of patterns.
Optionally, the guide holes and the through holes are respectively provided with 2, 2 guide holes are symmetrically arranged, and 2 through holes are symmetrically arranged. Set up 2 through-holes, guide hole and can be more steady order about the movable mould board motion, can make the ejector pin better carry out the drawing of patterns to fashioned plastic part simultaneously.
Optionally, the moving mechanism includes a fixed seat, an electromagnet disposed on the fixed seat, and an iron block mounted on each movable mold, and the electromagnet is opposite to the iron block directly below the second mold plate. The electro-magnet circular telegram can produce huge appeal to the iron plate, at the forming device during operation of this scheme, make the electro-magnet be in the on-state all the time, when the movable mould on the second template rotated under the second template, the electro-magnet can produce huge appeal to the iron plate on this movable mould, the iron plate drives this movable mould and removes to electro-magnet one side, the effect of elastic component is overcome to the movable mould and the cover half is constantly kept away from, the cover half, the movable mould separation, at this moment under the effect of ejector pin, fashioned plastic part is ejecting on the movable mould, realized dividing the mould, unload.
Optionally, the second template is provided with a plurality of through openings, each through opening being opposite a different iron block. The opening is formed, the blocking effect of the second template on the electromagnet is weakened, the electromagnet can better attract the iron block, and the iron block can smoothly drive the movable mold to move together.
Optionally, the power mechanism comprises a gear, a first incomplete gear engaged with the gear, and a first motor for driving the first incomplete gear to rotate, and the gear is fixed on the first template or the second template. When the first template and the second template need to rotate, the first motor is started, the first motor drives the first incomplete gear to rotate, and the first incomplete gear drives the first template and the second template to rotate simultaneously through the gear.
Optionally, the power mechanism further comprises a speed reducer for controlling the output speed of the first motor. The speed reducer is arranged to effectively control the output speed of the first motor, so that the output speed of the first motor meets the actual requirement.
Optionally, the power mechanism comprises an inner gear ring, a second incomplete gear meshed with the inner gear ring and a second motor used for driving the second incomplete gear to rotate, and the inner gear ring is fixed on the first template or the second template. When the first template and the second template need to rotate, the second motor is started, the second motor drives the second incomplete gear to rotate, and the second incomplete gear drives the first template and the second template to rotate simultaneously through the inner gear ring.
Drawings
FIG. 1 is a front view of a plastic injection molding apparatus according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of FIG. 3;
FIG. 5 is a schematic structural diagram of a power mechanism in the plastic injection molding apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a power mechanism in a plastic injection molding apparatus according to a second embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a transmission system 10, a charging barrel 20, a discharging module 21, a liquid channel 22, a groove 23, a resetting piece 24, a blocking block 25, a first magnet 26, a first template 30, a flow channel 31, a second magnet 32, a second template 40, a through hole 41, a movable mold 50, an iron block 51, a top rod 52, a guide post 53, an elastic piece 54, a fixed mold 60, a fixed seat 70, an electromagnet 71, an inner gear ring 80, a second incomplete gear 81, a gear 90 and a first incomplete gear 91.
Example one
This embodiment is substantially as shown in fig. 1-3: the plastic injection molding device comprises an injection system, a mold closing system, a transmission system 10, a heating system and a cooling system. The mold clamping system comprises a mounting seat, a moving mechanism, a power mechanism, a first mold plate 30 and a second mold plate 40, wherein in the embodiment, the first mold plate 30 and the second mold plate 40 are cylinders with the same volume and size, and the first mold plate 30 is welded at the rotating center of the second mold plate 40 through a support column. The first template 30 and the second template 40 are rotatably connected to the mounting seat through rotating shafts.
The power mechanism is used for driving the first template 30 and the second template 40 to rotate intermittently, and as shown in fig. 5, the power mechanism includes an inner gear ring 80, a second incomplete gear 81 and a second motor, the inner gear ring 80 can be fixed on the first template 30 or the second template 40, in this embodiment, the inner gear ring 80 is welded on the second template 40, and the inner gear ring 80 is coaxial with the second template 40. The second motor is fixedly installed on the installation seat, an output shaft of the second motor is welded at the rotating center of the second incomplete gear 81, and the second incomplete gear 81 is meshed with the inner gear ring 80. The second motor can drive the first and second templates 30 and 40 to rotate intermittently through the second incomplete gear 81 and the ring gear 80.
A plurality of fixed molds 60 uniformly distributed along the circumferential direction of the first template 30 are welded on the first template 30, and in the embodiment, the number of the fixed molds 60 is 8; the second die plate 40 is welded with 8 movable dies 50 which are fitted with the fixed die 60 one by one. The first mold plate 30 is provided with a number of runners 31 equal to the number of the fixed molds 60, one end of each runner 31 is communicated with the mold cavity of one of the fixed molds 60, and the other end is communicated with the outside, and in the embodiment, the other ends of the runners 31 are provided on the circumferential side wall of the first mold plate 30.
The injection system comprises a charging barrel 20, a discharging module 21 is welded at the discharging end of the charging barrel 20, a liquid channel 22 communicated with the charging barrel 20 is formed in the discharging module, and the end part of the discharging module is always attached to the circumferential side wall of the first template 30. After the first template 30 is driven by the power mechanism to rotate intermittently, when the first template is at rest, the liquid channel 22 on the discharging module is communicated with one of the flow channels 31.
Referring to fig. 4, a sealing mechanism is installed on the discharging module, the sealing mechanism includes a blocking block 25, a resetting member 24 (in this embodiment, the resetting member 24 is a pressure spring) for resetting the blocking block 25, and a groove 23 formed on the discharging module, and an upper end of the groove 23 is communicated with the liquid passage 22. The blocking block 25 is connected in the groove 23 in a sliding and sealing mode, when the blocking block is not acted by other external force, under the action of the resetting piece 24, one side of the blocking block 25 extends into the liquid channel 22 and can partition the liquid channel 22. One end of the blocking block 25 extending out of the groove 23 is fixedly connected with a first magnet 26, 8 second magnets 32 are fixedly mounted on the first template 30, and each second magnet 32 is arranged on one side close to different flow channels 31. When the liquid passage 22 communicates with one of the flow passages 31, the block piece 25 slides along the inside of the groove 23 under the repulsive force of the second magnet 32 and the first magnet 26, and the block piece 25 opens the liquid passage 22.
The movable mold 50 is provided with 2 guide holes and 2 through holes, and the 2 guide holes and the 2 through holes are symmetrically arranged. A plurality of guide posts 53 and ejector rods 52 are welded on the second template 40, different guide posts 53 penetrate through different guide holes, and different ejector rods 52 penetrate through different through holes. An elastic member 54 (the elastic member 54 in this embodiment is a compression spring) is connected between the second mold plate 40 and each movable mold 50, the elastic member 54 is sleeved on the ejector rod 52, and when no other external force is applied, the movable mold 50 and the fixed mold 60 are always kept closed under the action of the elastic member 54.
The moving mechanism is used for driving one of the movable dies 50 on the second template 40 to slide within a certain time period, so that the movable die 50 is separated from the fixed die 60. The moving mechanism comprises a fixed seat 70, an electromagnet 71 arranged on the fixed seat 70 and an iron block 51 arranged on each movable die 50, wherein the electromagnet 71 is opposite to the iron block 51 right below the second die plate 40, the electromagnet 71 is electrified to generate huge attraction force to the iron block 51, so that the iron block 51 drives the movable die 50 fixed with the iron block 51 to move towards one side of the electromagnet 71, and the movable die 50 continuously moves away from the fixed die 60 under the action of the elastic piece 54. The second template 40 is provided with a plurality of through holes 41, each through hole 41 is opposite to a different iron block 51, and the through holes 41 are formed, so that the blocking effect of the second template 40 on the electromagnet 71 is weakened, and the electromagnet 71 can better attract the iron blocks 51. The fixed mold 60 communicating with the liquid passage 22 and the fixed mold 60 from which the movable mold 50 is driven to be separated by the moving mechanism are not the same fixed mold 60, that is, when the moving mechanism drives a certain movable mold 50 to move away from the corresponding fixed mold 60, the liquid passage 22 communicates with another fixed mold 60 through the flow passage 31, in this embodiment, the moving mechanism is located at the lower side of the second mold plate 40, and the discharging module is located at the right side of the first mold plate 30 (also equivalent to being located at the right side of the second mold plate 40).
When the plastic injection molding device works, the electromagnet 71 is always in the electrified state; and starting a second motor, driving a second incomplete gear 81 to rotate by the second motor, and driving the first template 30 and the second template 40 to simultaneously and intermittently rotate by the second incomplete gear 81 through an inner gear ring 80. When the first mold plate 30 is temporarily stationary after intermittently rotating, the liquid passage 22 of the discharging module is communicated with one of the runners 31 of the first mold plate 30, and at this time, the heated and melted material in the charging barrel 20 enters one of the mold cavities formed by combining the fixed mold 60 and the movable mold 50 through the liquid passage 22 and the runners 31 of the discharging module, and is cooled and molded in the mold cavity. After the molten material is injected into the mold cavity, the power mechanism drives the first mold plate 30 and the second mold plate 40 to perform the next intermittent rotation, after the rotation, the liquid channel 22 on the discharging module is communicated with the other runner 31 on the first mold plate 30, and the injection system injects the molten material into the mold cavity formed by combining the fixed mold 60 and the movable mold 50. The first and second mold plates 30 and 40 are continuously and intermittently rotated, and the movement of the molten material is continuously repeated. When the movable mold 50 on the second mold plate 40 rotates to the moving mechanism (that is, when the movable mold 50 on the second mold plate 40 rotates to a position right below the second mold plate 40), the electromagnet 71 can generate a huge attraction force on the iron block 51 on the movable mold 50, the iron block 51 drives the movable mold 50 to move towards one side of the electromagnet 71, the movable mold 50 continuously moves away from the fixed mold 60 against the action of the elastic member 54, the fixed mold 60 and the movable mold 50 are separated, and at this time, under the action of the ejector rod 52, the plastic part formed on the movable mold 50 is ejected, so that mold splitting and unloading are realized.
In this scheme, after injection system injects the material into the die cavity, need not movable mould 50, cover half 60 motionless and realize the cooling of material, movable mould 50, cover half 60 can rotate along with second template 40, first template 30, and the material cools off at the pivoted in-process, until unloading under moving mechanism's effect at last. In the process of intermittent rotation of the second template 40 and the first template 30, the injection materials are also intermittently injected into other mold cavities, and the injection is performed after the last plastic part is cooled and unloaded without waiting, so that the material cooling time is saved, the production continuity is higher, and the processing efficiency can be improved.
Example two
The present embodiment is different from the first embodiment in that: the power mechanism of the present embodiment is different from the first embodiment in that, as shown in fig. 6, the power mechanism includes a frame, a gear 90, a first incomplete gear 91, a first motor, and a speed reducer, the gear 90 can be fixed on the first form 30 or the second form 40, and in this embodiment, the gear 90 is welded on the second form 40. The first motor and the speed reducer are fixedly mounted on the frame, an output shaft of the first motor is connected with an input shaft of the speed reducer, an output shaft of the speed reducer is welded at a rotation center of the first incomplete gear 91, the first incomplete gear 91 is meshed with the gear 90, and the first motor can drive the first template 30 and the second template 40 to intermittently rotate through the first incomplete gear 91 and the gear 90. When the first template 30 and the second template 40 need to rotate, the first motor is started, the first motor drives the first incomplete gear 91 to rotate, and the first incomplete gear 91 drives the first template 30 and the second template 40 to rotate simultaneously through the gear 90.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (10)
1. The plastic injection molding device comprises an injection system, a mold closing system, a transmission system, a heating system and a cooling system; the method is characterized in that: the die assembly system comprises a moving mechanism, a first template, a second template fixedly connected with the first template and a power mechanism used for driving the first template to rotate intermittently, wherein the first template is provided with a plurality of fixed dies, and the second template is provided with a plurality of moving dies which are matched with the fixed dies one by one; the moving mechanism is used for driving one of the moving dies to slide so as to separate the moving die from the fixed die; the first template is provided with a plurality of runners, one end of each runner is communicated with the die cavity of one of the fixed dies, and the other end of each runner is communicated with the outside; the injection system comprises a charging barrel, the discharging end of the charging barrel is connected with a discharging module, a liquid channel communicated with the charging barrel is formed in the discharging module, and the end part of the discharging module is always attached to the first template; after the power mechanism drives the first template to rotate intermittently, the liquid channel on the discharging module is communicated with one of the runners; the fixed die communicated with the liquid channel and the fixed die driven by the moving mechanism to separate from the moving die are not the same fixed die.
2. The plastic injection molding apparatus of claim 1, wherein: the discharging module is provided with a sealing mechanism, the sealing mechanism comprises a plugging block, a resetting piece for resetting the plugging block and a groove arranged on the discharging module, and the plugging block is connected in the groove in a sliding and sealing manner; when the device is not acted by other external force, one side of the blocking block extends into the liquid channel and can cut off the liquid channel under the action of the resetting piece; one end of the plugging block extending out of the groove is provided with a first magnet, the first template is provided with a plurality of second magnets, and each second magnet is close to one side of a different flow channel; when the liquid channel is communicated with one of the flow passages, the blocking block slides along the inner part of the groove under the repulsive force of the second magnet, and the blocking block opens the liquid channel.
3. The plastic injection molding apparatus of claim 2, wherein: the reset piece is a pressure spring.
4. The plastic injection molding apparatus of claim 1, wherein: the movable mold is provided with a guide hole and a through hole, and the second template is fixed with a guide post penetrating through the guide hole and a mandril penetrating through the through hole; an elastic piece is connected between the second template and each movable mold, and the movable molds and the fixed molds are always kept closed under the action of the elastic piece without being acted by other external forces.
5. The plastic injection molding apparatus of claim 4, wherein: the guide hole and the through hole are respectively provided with 2 guide holes, 2 guide holes are symmetrically arranged, and 2 through holes are symmetrically arranged.
6. The plastic injection molding apparatus of any one of claims 1-5, wherein: the moving mechanism comprises a fixed seat, an electromagnet arranged on the fixed seat and an iron block arranged on each movable die, and the electromagnet is opposite to the iron block under the second template.
7. The plastic injection molding apparatus of claim 6, wherein: the second template is provided with a plurality of through openings, and each through opening is opposite to a different iron block.
8. The plastic injection molding apparatus of claim 7, wherein: the power mechanism comprises a gear, a first incomplete gear meshed with the gear and a first motor used for driving the first incomplete gear to rotate, and the gear is fixed on the first template or the second template.
9. The plastic injection molding apparatus of claim 8, wherein: the power mechanism also comprises a speed reducer used for controlling the output speed of the first motor.
10. The plastic injection molding apparatus of claim 7, wherein: the power mechanism comprises an inner gear ring, a second incomplete gear meshed with the inner gear ring and a second motor used for driving the second incomplete gear to rotate, and the inner gear ring is fixed on the first template or the second template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531290.8A CN111645270A (en) | 2020-06-11 | 2020-06-11 | Plastic injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531290.8A CN111645270A (en) | 2020-06-11 | 2020-06-11 | Plastic injection molding device |
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| CN111645270A true CN111645270A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010531290.8A Withdrawn CN111645270A (en) | 2020-06-11 | 2020-06-11 | Plastic injection molding device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721021A (en) * | 2021-01-12 | 2021-04-30 | 宁接桂 | Full-automatic plastic is mould equipment for injection moulding |
| CN113103515A (en) * | 2021-03-15 | 2021-07-13 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
| CN113787671A (en) * | 2021-09-15 | 2021-12-14 | 徐州尚恒工控技术有限公司 | Plastic housing injection molding equipment for processing electric vehicle controller |
| CN114571662A (en) * | 2022-04-01 | 2022-06-03 | 阜阳冈奇精密科技有限公司 | Improved injection mold |
-
2020
- 2020-06-11 CN CN202010531290.8A patent/CN111645270A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721021A (en) * | 2021-01-12 | 2021-04-30 | 宁接桂 | Full-automatic plastic is mould equipment for injection moulding |
| CN113103515A (en) * | 2021-03-15 | 2021-07-13 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
| CN113787671A (en) * | 2021-09-15 | 2021-12-14 | 徐州尚恒工控技术有限公司 | Plastic housing injection molding equipment for processing electric vehicle controller |
| CN113787671B (en) * | 2021-09-15 | 2023-03-14 | 徐州尚恒工控技术有限公司 | Plastic housing injection molding equipment for processing electric vehicle controller |
| CN114571662A (en) * | 2022-04-01 | 2022-06-03 | 阜阳冈奇精密科技有限公司 | Improved injection mold |
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Application publication date: 20200911 |