CN111619075A - Injection mold convenient to take off material - Google Patents
Injection mold convenient to take off material Download PDFInfo
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- CN111619075A CN111619075A CN202010499051.9A CN202010499051A CN111619075A CN 111619075 A CN111619075 A CN 111619075A CN 202010499051 A CN202010499051 A CN 202010499051A CN 111619075 A CN111619075 A CN 111619075A
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- injection
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- 238000002347 injection Methods 0.000 title claims abstract description 34
- 239000007924 injection Substances 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims description 21
- 239000004033 plastic Substances 0.000 claims abstract description 43
- 229920003023 plastic Polymers 0.000 claims abstract description 43
- 238000001746 injection moulding Methods 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 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
-
- 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
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives 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
-
- 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
- B29C45/7312—Construction of heating or cooling fluid flow channels
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
- B29C2045/334—Mountings or guides therefor; Drives therefor several transversely movable mould parts driven by a single drive 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
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molds, in particular to an injection mold convenient for stripping, which comprises an upper mold and a lower mold, wherein an injection molding cavity is formed between the upper mold and the lower mold in a surrounding manner, an injection pipe is fixedly arranged on the upper mold and is communicated with the inside of the injection molding cavity, two bottommost ends of the injection molding cavity are provided with square grooves towards the side wall of the lower mold, a frame body matched with the square grooves in size is fixedly arranged in each square groove, a first groove and a second groove are arranged on each frame body, an opening of each first groove is arranged towards the injection molding cavity, an opening of each second groove is arranged towards the inside of the lower mold, a through groove for communicating the first groove with the second groove is arranged between the first groove and the second groove, a blocking mechanism is arranged in each through groove, a cutting mechanism is arranged in each second groove, and a stripping mechanism is arranged in the lower mold. According to the invention, the plastic part is separated from the two dies by arranging the first groove and the continuously swinging knocking hammer, and the beneficial effect is obvious.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold convenient for stripping.
Background
The injection mold is manufactured by adding plastic into a mold, continuously rotating the mold along two vertical axes and heating the mold, gradually and uniformly coating and melting the plastic in the mold on the whole surface of the mold cavity under the action of gravity and heat energy, forming the plastic into a required shape, and cooling and shaping the plastic.
When the existing injection mold is used for injection production, an ejector pin is usually used for pressing cooled and shaped plastic, the cooled and shaped plastic is ejected out of the mold to realize stripping, but when a U-shaped thin-wall plastic part is produced, the plastic is thin in wall thickness, and when the ejector pin presses the plastic, the thin-wall plastic is likely to be broken, so that the thin-wall plastic is damaged, not only is production raw materials wasted, but also a large amount of processing time is wasted, the production efficiency is reduced, and therefore the injection mold convenient for stripping is designed.
Disclosure of Invention
The invention aims to solve the problem that the product is easy to damage when a thimble is used for stripping materials in the prior art when thin-wall plastics are produced, and provides an injection mold convenient for stripping materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
an injection mold convenient for stripping is designed, which comprises an upper mold and a lower mold, wherein an injection molding cavity is formed between the upper mold and the lower mold in a surrounding manner, an injection pipe is fixedly arranged on the upper mold and is communicated with the inside of the injection molding cavity, two bottommost ends of the injection molding cavity are provided with square grooves towards the side wall of the lower mold, frame bodies matched with the square grooves in size are fixedly arranged in the square grooves, the frame bodies are provided with a first groove and a second groove, the opening of the first groove is arranged towards the injection molding cavity, the opening of the second groove is arranged towards the inside of the lower mold, a through groove for communicating the first groove with the second groove is arranged between the first groove and the second groove, a blocking mechanism is arranged in the through groove, a cutting mechanism is arranged in the second groove, a stripping mechanism is arranged in the lower mold, and comprises a motor fixedly arranged in the lower mold, the output end of the motor is fixedly connected with an incomplete gear, the interior of the lower gear is horizontally and slidably provided with a connecting frame, racks are fixedly arranged on the top of the inner wall and the bottom of the inner wall of the connecting frame, the incomplete gear is positioned in the connecting frame and is in meshed connection with the racks, horizontal rods are fixedly welded at the two ends of the connecting frame, a first swinging rod is rotatably connected on each horizontal rod, the horizontal rod is always positioned in the motion plane of the first swinging rod, a long groove is arranged inside the first swinging rod, a horizontal limiting round rod is fixedly welded in the lower die, the limiting round rod penetrates through the long groove, the inner wall of the long groove is in two-point contact with the peripheral wall of the limiting round rod, the motion plane of the first swing rod is always vertical to the limiting round rod, and the top end of the first swing rod is fixedly provided with a knocking hammer.
Preferably, the blocking mechanism comprises a transverse sliding groove formed in the inner side wall between the first groove and the second groove, a partition plate is arranged in the transverse sliding groove in a sliding mode, a return spring is fixedly connected between the partition plate and the transverse sliding groove, and the partition plate is abutted against the side wall of the through groove under the action of the return spring.
Preferably, cutting mechanism includes the electric putter in the fixed mounting second recess, electric putter's output bottom mounting is provided with the diaphragm, the one end fixed welding of diaphragm has the cutter, the lateral wall setting of second recess is hugged closely to the cutter, the outer wall of cutter and the inner wall sliding contact who runs through the groove, the fixed welding has spacing slide in the second recess, sliding contact between spacing slide and the cutter, reset spring's one end has been kept away from to the baffle has seted up the chamfer, sliding contact between the cutting edge of cutter and the chamfer, the inside of second recess and its below fixed mounting that is located the diaphragm have motor control switch, through wire electric connection between motor control switch and the motor.
Preferably, it is provided with sealed slider to slide in the first recess, sealed slider's the outer wall and the airtight setting of the inner wall of first recess, fixedly connected with spring between sealed slider and the first recess, the fixed electro-magnet that is provided with in bottommost of first recess, the spring housing is established in the outside of electro-magnet, sealed slider is made for magnetism nature material, works as when the electro-magnet circular telegram, adsorbs sealed slider.
Preferably, the fixed welding in the inside of bed die has two horizontally limiting plates, two the limiting plate is located the upper and lower both ends of linking frame respectively, the spout has been seted up to the inside of limiting plate, the upper and lower both ends of linking frame slide and set up in the spout.
Preferably, strike the hammer including slip drum and slider, the slider slides and sets up in the slip drum, one side fixed weld of slider has the connecting rod, the connecting rod runs through between the lateral wall of slip drum outside and connecting rod that the slip drum extends to the slip drum and the clearance fit between the outer wall of connecting rod and slip drum, the opposite side fixedly connected with buffer spring of slider, buffer spring's the other end supports and presses in the bottom of slip drum, the one end of slip drum is through screw fixedly connected with and is strikeed the board, the outer wall of slip drum and the top fixed weld of first swinging arms.
Preferably, the inside of going up the mould is provided with cooling body, cooling body is including seting up the cooling chamber in last mould inside, the cooling chamber is close to the chamber setting of moulding plastics, go up the fixed feed liquor pipe that is provided with on the mould, the feed liquor pipe communicates with the inside in cooling chamber.
The invention provides an injection mold convenient for stripping materials, which has the beneficial effects that: this injection mold convenient to take off material is through seting up first recess, make to form spacingly between the bottom of working of plastics and the bed die, the working of plastics is intercepted on the bed die, force the working of plastics and go up the mould separation, this moment through setting up motor and incomplete gear, make the link frame around reciprocating sliding about the bed die is inside, and drive reciprocating motion about the horizon bar, when reciprocating motion about the horizon bar, first swinging arms is around spacing round bar swing back and forth, and drive the inner wall that strikes the hammer and constantly strike the bed die, because bed die inner wall and working of plastics density are different, therefore the vibration frequency who produces is different, lead to the working of plastics to break away from with the bed die in continuous vibrations. According to the invention, the plastic piece is separated from the upper die and the lower die by arranging the first groove and the continuously swinging knocking hammer, and the beneficial effect is obvious.
Drawings
FIG. 1 is a schematic front sectional view of an injection mold facilitating stripping according to the present invention;
FIG. 2 is a schematic side view of an injection mold facilitating stripping according to the present invention;
FIG. 3 is a schematic side view of a cross-sectional structure of a lower mold of an injection mold facilitating stripping according to the present invention;
FIG. 4 is a schematic cross-sectional view of a knocking hammer of an injection mold facilitating material stripping according to the present invention;
FIG. 5 is a schematic perspective view of an injection mold facilitating material removal according to the present invention;
FIG. 6 is a schematic product structure diagram of an injection mold facilitating stripping according to the present invention;
FIG. 7 is an enlarged view of the part A of FIG. 1;
FIG. 8 is a schematic system diagram of an injection mold facilitating stripping according to the present invention.
In the figure: 1, 2, 3, 4 incomplete gears, 5 connecting frames, 6 racks, 7 horizontal rods, 8 first oscillating rods, 9 knocking hammers, 10 limiting round rods, 11 limiting plates, 12 sliding chutes, 13 sliding cylinders, 14 sliding blocks, 15 connecting rods, 16 buffer springs, 17 knocking plates, 18 electromagnets, 19 electric push rods, 20 long grooves, 21 square grooves, 22 return springs, 23 partition plates, 24 sealing sliding blocks, 25 transverse sliding chutes, 26 motor control switches, 27 chamfers, 28 cooling cavities, 29 injection molding cavities, 30 liquid inlet pipes, 31 injection pipes, 32 guide plates, 33 cutters, 34 transverse plates, 35 springs, 36 frame bodies, 37 first grooves, 38 second grooves and 39 penetrating grooves.
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.
Example 1
Referring to fig. 1-8, an injection mold convenient for stripping comprises an upper mold 1 and a lower mold 2, an injection molding cavity 29 is enclosed between the upper mold 1 and the lower mold 2, an injection pipe 31 is fixedly arranged on the upper mold 1, the injection pipe 31 is communicated with the inside of the injection molding cavity 29, two bottommost ends of the injection molding cavity 29 are provided with square grooves 21 facing the side wall of the lower mold 2, a frame body 36 matched with the square grooves 21 in size is fixedly arranged in the square grooves 21, a first groove 37 and a second groove 38 are arranged on the frame body 36, the opening of the first groove 37 is arranged facing the injection molding cavity 29, the opening of the second groove 38 is arranged facing the inside of the lower mold 2, a through groove 39 communicating the first groove 37 with the second groove 38 is arranged between the first groove 37 and the second groove 38, a blocking mechanism is arranged in the through groove 39, a cutting mechanism is arranged in the second groove 38, the square grooves 21 are arranged on the lower mold 2, a frame body 36 is arranged in the square groove 21, a first groove 37 is formed in the frame body 36, the first groove 37 can be arranged to form a limiting block in the first groove 37 when material liquid is injected into the injection molding cavity 29, so that a limiting relation is formed between a molded plastic part and the lower die 2, the plastic part is always kept on the lower die 2 under the condition that the limiting block is not cut, a blocking mechanism is arranged to ensure that the material liquid in the first groove 37 cannot enter the second groove 38, and a cutting mechanism is arranged to cut off the space between the die and the limiting block; in addition, because the wall thickness of the side wall between the second groove 38 and the injection molding cavity 29 is very thin, after the cutting mechanism cuts the limiting block, a bulge with the thickness the same as that of the side wall between the second groove 38 and the injection molding cavity 29 is left at the opening position of the first groove 37, the thickness of the bulge is very thin, when the inner wall of the lower die 2 is knocked, a gap is formed between the plastic part and the lower die 2 gradually, the bulge can be separated from the first groove 37 gradually, and finally the plastic part and the die are separated smoothly.
In the invention, a stripping mechanism is arranged inside a lower die 2, the stripping mechanism comprises a motor 3 fixedly arranged inside a lower die 1, an incomplete gear 4 is fixedly connected at the output end of the motor 3, a connecting frame 5 is horizontally and slidably arranged inside the lower gear 2, racks 6 are fixedly arranged at the top and the bottom of the inner wall of the connecting frame 5, the incomplete gear 4 is positioned inside the connecting frame 5, the incomplete gear 4 is meshed with the racks 6, horizontal rods 7 are fixedly welded at two ends of the connecting frame 5, a first swinging rod 8 is rotatably connected on the horizontal rods 7, the horizontal rods 7 are always positioned in the motion plane of the first swinging rod 8, a long groove 20 is formed inside the first swinging rod 8, a horizontal limiting round rod 10 is fixedly welded inside the lower die 2, the limiting round rod 10 penetrates through a strip groove 20, and the overlong inner wall of the long groove 20 is contacted with two points of the peripheral wall of the limiting round rod 10, the motion plane of the first swing rod 8 is always vertical to the limiting round rod 10, and the top end of the first swing rod 8 is fixedly provided with a knocking hammer 9.
According to the invention, the motor 3 drives the incomplete gear 4 to rotate, the incomplete gear 4 rotates to drive the connecting frame 5 to slide left and right, the connecting frame 5 slides left and right to drive the horizontal rod 7 to move left and right, the first swinging rod 8 swings around the limiting round rod 10 while the horizontal rod 7 moves left and right, the first swinging rod 8 can also generate relative displacement relative to the limiting round rod 10 while rotating under the action of the long strip groove 20, the first swinging rod 8 swings to drive the knocking hammer 9 to continuously knock the inner wall of the lower die 2, and the inner wall of the lower die 2 and the density of plastic pieces are different, so that the plastic pieces are separated from the lower die 2 in continuous vibration, and the material stripping effect is achieved.
In the invention, because the plastic in the die is gradually and uniformly coated, melted and adhered to the whole surface of the die cavity under the action of gravity and heat energy, when an upper die 1 and a lower die 2 are separated, a plastic piece can stay on which die, a stripping mechanism is arranged in the lower die 2, the stripping mechanism is not arranged in the upper die 1, if the plastic piece stays on the upper die 1, the stripping mechanism arranged in the lower die 2 is useless, the plastic piece in the upper die 1 is difficult to take out, and if the stripping mechanism is arranged in both dies, unnecessary waste can be generated, therefore, a first groove 37 is arranged, when the plastic piece is added into an injection molding cavity 29, the material liquid can enter the first groove 37 to form a limit block, so that the plastic piece must stay on the lower die 2, and at the moment, the plastic piece is separated from the lower die 2 through the stripping mechanism, the first groove 37 and the stripping mechanism are complementary.
Example 2
Referring to fig. 7, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the blocking mechanism includes a lateral sliding groove 25 formed inside a side wall between a first groove 37 and a second groove 38, a partition plate 23 is slidably disposed in the lateral sliding groove 25, a return spring 22 is fixedly connected between the partition plate 23 and the lateral sliding groove 25, the partition plate 23 is pressed against the side wall of the through groove 39 by the return spring 22, an elastic force is always stored in the return spring 22, and the partition plate 23 is always pressed against the side wall of the through groove 39 when there is no obstacle in the through groove 39 in the partition plate 23.
Example 3
Referring to fig. 7-8, as another preferred embodiment of the present invention, the difference from embodiment 2 is that the cutting mechanism includes an electric push rod 19 fixedly installed in a second groove 38, a transverse plate 34 is fixedly installed at the bottom end of the output end of the electric push rod 20, a cutting knife 33 is fixedly welded at one end of the transverse plate 34, the cutting knife 33 is closely attached to the side wall of the second groove 38, the outer wall of the cutting knife 33 is slidably contacted with the inner wall of a through groove 39, a guide plate 32 is fixedly welded in the second groove 38, the guide plate 32 is slidably contacted with the cutting knife 33, a chamfer 27 is formed at one end of the partition plate 23 away from the return spring 22, the cutting edge of the cutting knife 33 is slidably contacted with the chamfer 27, when the cutting knife 33 moves down, the partition plate 23 slides into the transverse sliding groove 25 under the action of the chamfer 27, a motor control switch 26 is fixedly installed inside the second groove 38 and below the transverse, the motor control switch 26 is electrically connected with the motor 3 through a wire, the electric push rod 19 is controlled to move downwards, the transverse plate 34 is driven to move downwards, when the transverse plate 34 moves downwards, the cutter 33 can also move downwards along with the transverse plate 34 to cut the limiting block in the first groove 37, when the cutter 33 reaches the bottommost end of the first groove 37, the limiting block is completely cut off, the limiting relation between the plastic piece and the lower die 2 does not exist any more at this time, and the transverse plate 34 also presses the motor control switch 26 at this time, so that the motor 3 starts to work, the stripping mechanism is started to knock the inner wall of the lower die 2, and the plastic piece and the lower die 2 are separated in a vibration mode; in addition, the motor control switch 26 is a push switch, when the plastic part is completely separated from the lower die, the electric push rod 19 is controlled to extend again to drive the transverse plate 34 to move downwards, the motor control switch 26 is touched in the downward moving process, the power-off operation of the motor control switch 26 is realized, and the operation and the stop of the motor 3 can be realized by controlling the extension and contraction of the electric push rod 19.
In the invention, an operation command is sent to a processor by pressing a corresponding operation button on a control panel, the processor receives a signal to control the electric push rod 19 to extend, the electric push rod 19 extends to drive the transverse plate 34 to move downwards, the transverse plate 34 moves downwards to drive the cutter 33 to move downwards to cut a plastic limit block in the first groove 37, when the plastic limit block is completely cut off, the transverse plate 34 presses the motor control switch 26, the motor control switch 26 transmits the signal to the processor, the processor receives the signal to control the motor 3 to rotate, the motor 3 rotates to indirectly control the knocking hammer 9 to knock the inner wall of the lower die 2, after the motor 3 rotates, the operation command is sent to the processor by pressing the corresponding operation button on the control panel, the processor receives the signal to control the electric push rod 19 to recover, and observe the stripping condition of the plastic piece and the lower die 2 until the plastic piece and the lower die 2 are completely separated, and pressing the corresponding operating button on the control panel again, sending an operating command to the processor, receiving a signal by the processor, controlling the electric push rod 19 to extend, driving the transverse plate 34 to move downwards, touching the motor control switch 26 in the downward movement process, transmitting the signal to the processor by the motor control switch 26, and controlling the motor 3 to stop running after receiving the signal by the processor.
Example 4
Referring to fig. 7, as another preferred embodiment of the present invention, the difference from embodiment 1 is that a sealing slider 10 is slidably disposed in a first groove 37, an outer wall of a sealing slider 24 and an inner wall of the first groove 37 are hermetically disposed, a spring 35 is fixedly connected between the sealing slider 24 and the first groove 37, an electromagnet 18 is fixedly disposed at the bottommost portion of the first groove 37, the spring 35 is sleeved outside the electromagnet 18, the sealing slider 24, the spring 35 and the electromagnet 18 are disposed to facilitate taking out a stopper remaining after the cutting in the first groove 37, the sealing slider 24 is made of a magnetically-attractive material, when the electromagnet 18 is energized, the sealing slider 24 is attracted, the electromagnet 18 is first energized to make the electromagnet 18 have magnetism, the sealing slider 24 is attracted and connected, at this time, the spring 35 is in a compressed state, then, a material liquid is filled in an injection molding cavity 29 to fill the first groove 37, after the plastic part is successfully stripped from the lower die 2, the cut residual waste materials are remained in the first groove 37, the electromagnet 18 is powered off, the electromagnet 18 loses magnetism, the spring 35 is recovered to a normal state from a compression state, the residual waste materials in the first groove 37 are ejected, the purpose of cleaning the waste materials in the first groove 37 is achieved, in addition, the electromagnet does not have an obvious Curie point, and the molten injection molding liquid cannot influence the magnetism of the electromagnet 18.
Example 5
Referring to fig. 1 and 3, as another preferred embodiment of the present invention, the difference from embodiment 1 is that two horizontal limiting plates 11 are fixedly welded inside the lower mold 2, the two limiting plates 11 are respectively located at the upper and lower ends of the connecting frame 5, a sliding groove 12 is formed inside the limiting plate 11, the upper and lower ends of the connecting frame 5 are slidably disposed in the sliding groove 12, under the action of the limiting plates 11 and the sliding groove 12, the connecting frame 5 horizontally moves in the sliding groove 12, and the limiting plates 11 play a role in supporting and limiting.
Example 6
Referring to fig. 1 and 4, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the knocking hammer 9 includes a sliding cylinder 13 and a sliding block 14, the sliding block 14 is slidably disposed in the sliding cylinder 13, a connecting rod 15 is fixedly welded to one side of the sliding block 14, the connecting rod 15 extends to the outside of the sliding cylinder 13 through the sliding cylinder 13, the outer wall of the connecting rod 15 is in clearance fit with the side wall of the sliding cylinder 13, a buffer spring 16 is fixedly connected to the other side of the sliding block 14, the other end of the buffer spring 16 abuts against the bottom of the sliding cylinder 13, one end of the sliding cylinder 13 is fixedly connected with a knocking plate 17 through a screw, the outer wall of the sliding cylinder 13 is fixedly welded to the top end of the first swing rod 8, when the knocking hammer 9 knocks the inner wall of the lower mold 2, the knocking plate 17 firstly knocks the inner wall of the lower mold 2 to generate a first vibration, and then the knocking hammer, sliding cylinder 13 strikes on strikeing board 17 to give lower mould 2 with the percussion force transmission, make lower mould 2 send vibrations for the second time, so design makes and makes the stroke can strike lower mould 2 twice, and the high efficiency separates the working of plastics and lower mould 2, very big increase the profit ratio.
Example 7
Referring to fig. 1, as another preferred embodiment of the present invention, the difference from embodiment 1 is that a cooling mechanism is disposed inside the upper mold 1, the cooling mechanism includes a cooling cavity 28 disposed inside the upper mold 1, the cooling cavity 28 is disposed near the injection molding cavity 29, a liquid inlet pipe 30 is fixedly disposed on the upper mold 1, the liquid inlet pipe 30 is communicated with the inside of the cooling cavity 28, and the liquid inlet pipe 30 can inject cooling liquid into the cooling cavity 28 to cool the plastic part inside the injection molding cavity 29, so as to accelerate the injection molding speed and improve the production efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides an injection mold convenient to take off material, includes upper die (1) and bed die (2), it moulds plastics chamber (29) to surround formation between upper die (1) and the bed die (2), it is provided with on upper die (1) and annotates material pipe (31) to fix, annotate the inside intercommunication in material pipe (31) and injection moulding chamber (29), a serial communication port, square groove (21) have been seted up on the lateral wall of two bottommost end court bed dies (2) of injection moulding chamber (29), square groove (21) internal fixation is provided with framework (36) that match with square groove (21) size, first recess (37) and second recess (38) have been seted up on framework (36), the opening of first recess (37) sets up towards injection moulding chamber (29), the opening court of second recess (38) sets up to the inside of bed die (2), it even has first recess (37) and second recess (38) to set up between first recess (37) and second recess (38) The cutting device comprises a through groove (39), a blocking mechanism is arranged in the through groove (39), a cutting mechanism is arranged in a second groove (38), a stripping mechanism is arranged in a lower die (2), the stripping mechanism comprises a motor (3) fixedly installed in the lower die (1), an incomplete gear (4) is fixedly connected to the output end of the motor (3), a connecting frame (5) is horizontally arranged in the lower die (2) in a sliding manner, racks (6) are fixedly arranged at the top and the bottom of the inner wall of the connecting frame (5), the incomplete gear (4) is positioned in the connecting frame (5), the incomplete gear (4) is meshed with the racks (6), horizontal rods (7) are fixedly welded at two ends of the connecting frame (5), and a first swinging rod (8) is rotatably connected to the horizontal rods (7), the horizontal rod (7) is located in a motion plane of the first swing rod (8) all the time, a long groove (20) is formed in the first swing rod (8), a horizontal limiting round rod (10) is fixedly welded in the lower die (2), the limiting round rod (10) penetrates through the long groove (20) and the inner wall of the long groove (20) to be in two-point contact with the peripheral wall of the limiting round rod (10), the motion plane of the first swing rod (8) is perpendicular to the limiting round rod (10) all the time, and a knocking hammer (9) is fixedly arranged at the top end of the first swing rod (8).
2. An injection mold facilitating stripping according to claim 1, wherein the blocking mechanism comprises a transverse sliding groove (25) formed in the inner side wall between the first groove (37) and the second groove (38), a partition plate (23) is slidably arranged in the transverse sliding groove (25), a return spring (22) is fixedly connected between the partition plate (23) and the transverse sliding groove (25), and the partition plate (23) is pressed against the side wall of the through groove (39) under the action of the return spring (22).
3. The injection mold convenient to remove materials as claimed in claim 2, wherein the cutting mechanism comprises an electric push rod (19) fixedly installed in a second groove (38), a transverse plate (34) is fixedly arranged at the bottom end of the output end of the electric push rod (19), a cutter (33) is fixedly welded at one end of the transverse plate (34), the cutter (33) is closely attached to the side wall of the second groove (38), the outer wall of the cutter (33) is in slidable contact with the inner wall of a through groove (39), a guide plate (32) is fixedly welded in the second groove (38), the guide plate (32) is in slidable contact with the cutter (33), a chamfer (27) is formed at one end, far away from the return spring (22), of the partition plate (23), the cutting edge of the cutter (33) is in slidable contact with the chamfer (27), a motor control switch (26) is fixedly installed inside the second groove (38) and below the transverse plate (34), the motor control switch (26) is electrically connected with the motor (3) through a lead.
4. The injection mold convenient to take off material of claim 1, characterized in that, a sealing slide block (24) is arranged in the first groove (37) in a sliding manner, the outer wall of the sealing slide block (24) and the inner wall of the first groove (37) are arranged in a sealing manner, a spring (35) is fixedly connected between the sealing slide block (24) and the first groove (37), an electromagnet (18) is fixedly arranged at the bottommost part of the first groove (37), the spring (35) is sleeved outside the electromagnet (18), the sealing slide block (24) is made of magnetic material, and when the electromagnet (18) is electrified, the sealing slide block (24) is adsorbed.
5. The injection mold convenient to take off material according to claim 1, characterized in that two horizontal limiting plates (11) are fixedly welded inside the lower mold (2), the two limiting plates (11) are respectively located at the upper end and the lower end of the connecting frame (5), a sliding groove (12) is formed inside each limiting plate (11), and the upper end and the lower end of the connecting frame (5) are slidably arranged in the sliding groove (12).
6. An injection mould facilitating stripping according to claim 1, characterised in that the knocking hammer (9) comprises a sliding cylinder (13) and a slide (14), the sliding block (14) is arranged in the sliding cylinder (13) in a sliding way, one side of the sliding block (14) is fixedly welded with a connecting rod (15), the connecting rod (15) penetrates through the sliding cylinder (13) and extends to the outside of the sliding cylinder (13), the outer wall of the connecting rod (15) is in clearance fit with the side wall of the sliding cylinder (13), the other side of the sliding block (14) is fixedly connected with a buffer spring (16), the other end of the buffer spring (16) is pressed against the bottom of the sliding cylinder (13), one end of the sliding cylinder (13) is fixedly connected with a knocking plate (17) through a screw, the outer wall of the sliding cylinder (13) is fixedly welded with the top end of the first swinging rod (8).
7. An injection mold facilitating stripping as claimed in claim 1, characterized in that a cooling mechanism is provided inside the upper mold (1), the cooling mechanism comprises a cooling chamber (28) provided inside the upper mold (1), the cooling chamber (28) is provided adjacent to the injection molding chamber (29), a liquid inlet pipe (30) is fixedly provided on the upper mold (1), and the liquid inlet pipe (30) is communicated with the inside of the cooling chamber (28).
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CN202110971571.XA CN113500752A (en) | 2020-06-04 | 2020-06-04 | Injection mold for plastic preparation convenient to take off material |
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CN112172062A (en) * | 2020-10-26 | 2021-01-05 | 宁波江京电子商务有限公司 | Quick-cooling type injection mold |
CN112317982A (en) * | 2020-10-26 | 2021-02-05 | 宁波广贸电子商务有限公司 | Cable welding automatic protection welding mould |
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CN113733447A (en) * | 2021-09-17 | 2021-12-03 | 无锡方环机械有限公司 | PVC board foaming mold utensil |
CN116619702A (en) * | 2023-07-24 | 2023-08-22 | 太仓信诚精密模具有限公司 | Pre-buried sleeve injection mold capable of avoiding clamping and sticking materials |
CN116619702B (en) * | 2023-07-24 | 2023-12-05 | 太仓信诚精密模具有限公司 | Pre-buried sleeve injection mold capable of avoiding clamping and sticking materials |
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CN113500752A (en) | 2021-10-15 |
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