CN111890647A - Injection molding machine capable of automatically adjusting injection pressure and speed during work - Google Patents
Injection molding machine capable of automatically adjusting injection pressure and speed during work Download PDFInfo
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- CN111890647A CN111890647A CN202010723774.2A CN202010723774A CN111890647A CN 111890647 A CN111890647 A CN 111890647A CN 202010723774 A CN202010723774 A CN 202010723774A CN 111890647 A CN111890647 A CN 111890647A
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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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection molding machine capable of automatically adjusting injection pressure and speed during operation, which comprises a main body, wherein a plastic port with an upward opening is arranged at the upper side in the left end of the main body, a melting box is fixedly arranged below the plastic port, a melting cavity communicated with the plastic port is arranged at the upper end in the melting box, a partition plate is fixedly arranged at the lower wall in the melting cavity, a high-pressure cavity with a rightward opening is arranged in the melting box and below the partition plate, and a piston capable of sliding left and right is arranged in the high-pressure cavity. The yield is improved.
Description
Technical Field
The invention relates to the technical field of plastic molding, in particular to an injection molding machine capable of automatically adjusting injection pressure and speed during work.
Background
In the manufacturing process of plastics, plastic molding is a key link in the manufacturing process of the plastics, and comprises methods such as injection, extrusion, pressing, pouring, blow molding and the like, wherein the injection molding is a process of melting the plastics, injecting the melted plastics into a prefabricated mold, and then cooling, solidifying and forming the plastics, and in the process, defects after molding are easily caused due to incorrect operation or other errors, such as too fast or too slow injection speed, too high or too low injection pressure can cause the defects of bubbles or dark spots and the like of a finished plastic product. The present invention sets forth a device that solves the above problems.
Disclosure of Invention
The technical problem is as follows: the common injection molding machine can not adjust the injection speed or pressure in time in the injection process, and further causes the defects of bubbles or dark spots and the like of the plastic finished product.
In order to solve the problems, the injection molding machine capable of automatically adjusting the injection pressure and speed in work is designed in the embodiment, the injection molding machine capable of automatically adjusting the injection pressure and speed in work comprises a main body, a plastic opening with an upward opening is formed in the upper side in the left end of the main body, a melting box is fixedly arranged below the plastic opening, a melting cavity communicated with the plastic opening is arranged at the upper end in the melting box, a partition plate is fixedly arranged at the lower wall in the melting cavity, a high-pressure cavity with a right opening is formed in the melting box and is positioned below the partition plate, a piston capable of sliding left and right is arranged in the high-pressure cavity, a working cavity is arranged at the right side of the high-pressure cavity at the right end in the main body, a fixed material cylinder is fixedly connected at the right end of the melting box, the right end of the fixed material cylinder extends to the right side of the working cavity, the right end of the injection charging barrel is fixedly connected with an injection mold, when the piston reciprocates left and right in the high-pressure cavity, the molten plastic in the high-pressure cavity is driven to be pressed into the injection mold through the fixed charging barrel, the sliding charging barrel and the injection charging barrel cavity so as to be molded and formed along with the mold cavity, a fixing plate is fixedly arranged between the front wall and the rear wall in the working cavity and positioned on the right side of the lower wall of the working cavity, a screw fixedly connected with the lower side of the right wall in the working cavity is arranged above the center of the fixing plate, a slide block is connected with the outer circular surface of the screw in a sliding way, a forming die is fixedly connected with the upper end of the slide block, after the plastic product is molded, the slide block drives the molding die to slide rightwards so as to peel off the finished product, and a conveying cavity communicated with the lower wall of the working cavity and provided with a right opening is formed in the right side in the lower end of the main body, and a plastic finished product is peeled off from the outer surface of the forming die and then enters the conveying cavity to be conveyed out.
Preferably, the upper side just is located in the main part right-hand member the melting case left is equipped with the bull stick chamber, the rotatable bull stick that is equipped with of bull stick intracavity lower wall, bull stick left end hinged joint has the connecting rod, connecting rod right-hand member hinged joint in the piston left end face, bull stick chamber below just is located the downside is equipped with the bull stick linkage chamber in the main part left end, the rotatable being equipped with of bull stick linkage chamber upper wall fixed connection in the bull stick bevel gear of bull stick rotation center, the fixed check valve that is equipped with of right-hand member in the baffle.
Preferably, a fixed material cylinder cavity which is communicated from left to right is arranged in the fixed material cylinder, the sliding material cylinder can slide from left to right in the fixed material cylinder cavity, a sliding material cylinder cavity communicated with the fixed material cylinder cavity is arranged in the sliding material cylinder, the injection material cylinder can slide from left to right in the sliding material cylinder cavity, an injection material cylinder cavity communicated with the sliding material cylinder cavity is arranged in the injection material cylinder, a fixed block is fixedly arranged on the right side of the upper end of the outer circular surface of the fixed material cylinder, a sliding block is fixedly arranged on the right side of the upper end of the outer circular surface of the sliding material cylinder, a first spring is fixedly connected between the fixed block and the sliding block, an injection sliding block is fixedly arranged on the right side of the upper end of the outer circular surface of the injection material cylinder, a second spring is fixedly connected between the sliding block and the injection sliding, the second spring top bilateral symmetry just is located rotate between the preceding back wall of working chamber and is equipped with the slip gear shaft, the left and right sides slip gear shaft excircle face center is fixed be equipped with respectively with the sliding block reaches the spur gear that the injection sliding block meshes mutually.
Preferably, a bevel gear cavity is arranged at the inner upper side of the rear end of the main body and behind the injection sliding block, a control motor is fixedly arranged right and left of the bevel gear cavity, the left end of the control motor is in power connection with a power shaft, the left end of the power shaft extends leftwards to the bevel gear cavity and is fixedly provided with a power bevel gear, the front wall of the power bevel gear is fixedly provided with a sliding bevel gear meshed with the power bevel gear, the front end of the sliding bevel gear is fixedly connected with an outer spline shaft, an inner spline shaft is connected with the inner spline of the outer spline shaft, the inner spline shaft is in spline connection with the sliding gear shaft at the right side, the lower end of the inner spline shaft is provided with a spline shaft cavity, the inner spline shaft can slide up and down in the spline shaft cavity, electromagnetic cavities are symmetrically arranged left and right, the left side and the right side the electromagnetic cavity inner wall with the slip electromagnetic block is fixed between the terminal surface down and is equipped with the electromagnetic block spring, the left side the fixed electromagnetic block that is equipped with of electromagnetic cavity lower wall, right side terminal surface fixedly connected with electromagnetic block stay cord under the slip electromagnetic block.
Preferably, a gear transmission cavity is arranged right on the left of the bevel gear cavity, a gear transmission shaft is rotatably connected with the inner lower wall of the gear transmission cavity, a transmission bevel gear is fixedly arranged on the upper end surface of the gear transmission shaft, the left end of the power shaft extends leftwards into the gear transmission cavity and is fixedly provided with a driven bevel gear meshed with the transmission bevel gear, a rotating bevel gear fixedly connected with the outer circular surface of the gear transmission shaft is arranged right below the transmission bevel gear, a meshing bevel gear meshed with the rotation bevel gear is fixedly arranged on the left wall of the gear transmission cavity, a rotating part is fixedly arranged at the left end axis of the meshing bevel gear, a linkage cavity is arranged on the lower side of the left side of the gear transmission cavity, a spline bevel gear is rotatably connected with the right wall of the linkage cavity, a gear spline outer shaft is fixedly arranged at the right end of, the inner shaft of the gear spline is connected with the rotating part through a spline far away from one end of the meshing bevel gear, the outer circular surface of the inner shaft of the gear spline is close to one end of the gear transmission cavity, pressure spring cavities are symmetrically arranged at the upper and lower parts of one end of the gear transmission cavity, pressure spring blocks are rotatably connected in the pressure spring cavities and with the outer circular surface of the inner shaft of the gear spline, pressure springs are fixedly arranged between the right end face of each pressure spring block and the right wall of each pressure spring cavity, pressure spring pull ropes connected with the electromagnetic block pull ropes are fixedly arranged at the centers of the right ends of the pressure spring blocks at the upper sides, and the rear ends of the sliding gear shafts extend backwards to the left.
Preferably, the inner axis of the injection mold is communicated with an injection molding cavity, the upper end of the forming mold is provided with a ventilation cavity which is symmetrical about the injection molding cavity, the upper end of the right wall in the working cavity is provided with a stripping rod which is symmetrical up and down, the right end of the outer circular surface of the stripping rod is provided with a compression spring which is fixedly connected with the right wall in the working cavity, and an inductor is fixedly arranged above the sliding block and positioned on the upper wall of the working cavity.
Preferably, the right-hand member just is located in the main part the fixed sliding motor that is equipped with of the right-hand downside of working chamber, the screw rod right-hand member extends to right in the main part and with sliding motor left end power is connected, be equipped with under the screw rod with right wall fixed connection's dead lever in the working chamber, the slider lower extreme with outer disc sliding connection of dead lever.
Preferably, the conveying shafts are symmetrically and rotatably connected between the front wall and the rear wall of the conveying cavity, the conveying belts are wound between the conveying shafts on two sides, a conveying motor is fixedly arranged at the front end in the main body and on the right side in front of the conveying cavity, and the front end of the conveying shaft on the right side extends forwards into the main body and is in power connection with the rear end face of the conveying motor.
Preferably, the rear end in the main body is located a belt wheel cavity is formed in the left side of the rear portion of the conveying cavity, belt wheels are fixedly arranged in the belt wheel cavity in a bilateral symmetry mode, the rear end of the conveying shaft in the left side extends backwards to the inner portion of the main body and the right side of the main body and are fixedly connected with the belt wheels, the belt wheel cavity is formed between the belt wheels in the left side and the right side of the main body in a winding mode, a belt wheel shaft is fixedly arranged at the front end of the belt wheel in the left side, and the belt wheel shaft extends forwards to the rotating rod linkage cavity and.
The invention has the beneficial effects that: according to the invention, by adjusting the length of the injection cylinder and further controlling the injection pressure and speed, the molten plastic is firstly pressed into the charging barrel through the high-speed reciprocating motion of the piston, and then the length of the charging barrel can be adjusted in real time during injection molding by adjusting the whole length of the charging barrel so as to adjust the injection pressure and speed, so that the defect of generating bubbles or hidden bubbles after plastic molding is prevented, and the yield is improved.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view showing the overall structure of an injection molding machine capable of automatically adjusting injection pressure and speed during operation according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;
FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 3;
FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 1;
fig. 6 is an enlarged view of the structure of "E" in fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-6, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to an injection molding machine capable of automatically adjusting injection pressure and speed in work, which comprises a main body 11, wherein the upper side in the left end of the main body 11 is provided with a plastic port 37 with an upward opening, a melting box 58 is fixedly arranged below the plastic port 37, the upper end in the melting box 58 is provided with a melting cavity 38 communicated with the plastic port 37, the lower wall in the melting cavity 38 is fixedly provided with a partition plate 17, a high-pressure cavity 42 with a rightward opening is arranged in the melting box 58 and below the partition plate 17, a piston 59 capable of sliding left and right is arranged in the high-pressure cavity 42, a working cavity 32 is arranged at the right end in the main body 11 and right of the high-pressure cavity 42, the right end of the melting box 58 is fixedly connected with a fixed charging barrel 57, the right end of the fixed charging barrel 57 extends rightwards to the working cavity 32 and is connected with a sliding charging barrel 45 in a sliding manner, the right end of the injection cylinder 49 is fixedly connected with an injection mold 51, when the piston 59 reciprocates left and right in the high-pressure cavity 42, the molten plastic in the high-pressure cavity 42 is driven to be pressed into the injection mold 51 through the fixed cylinder 57, the sliding cylinder 45 and the injection cylinder cavity 50 so as to be molded and formed along with a mold cavity, a fixed plate 23 is fixedly arranged between the front wall and the rear wall in the working cavity 32 and positioned at the right side of the lower wall of the working cavity 32, a screw 24 fixedly connected with the lower side of the right wall in the working cavity 32 is arranged above the center of the fixed plate 23, the outer circular surface of the screw 24 is slidably connected with a slide block 22, the upper end of the slide block 22 is fixedly connected with a molding mold 53, after a plastic product is molded, the slide block 22 drives the molding mold 53 to slide right so as to peel off the finished product, a conveying cavity 19 communicated with the lower wall of the working cavity 32 and opened right, the plastic product is peeled off from the outer surface of the forming mold 53 and then is conveyed into the conveying cavity 19.
Beneficially, a rotating rod cavity 44 is arranged at the inner upper side of the right end of the main body 11 and at the left side of the melting tank 58, a rotating rod 41 is rotatably arranged at the inner lower wall of the rotating rod cavity 44, a connecting rod 40 is hinged at the left end of the rotating rod 41, the right end of the connecting rod 40 is hinged at the left end surface of the piston 59, a rotating rod linkage cavity 12 is arranged below the rotating rod cavity 44 and at the inner lower side of the left end of the main body 11, a rotating rod bevel gear 15 fixedly connected to the rotating center of the rotating rod 41 is rotatably arranged on the upper wall of the rotating rod linkage cavity 12, and a one-way valve 36 is fixedly arranged at the inner right end of.
Advantageously, a fixed cylinder cavity 56 is arranged in the fixed cylinder 57 and penetrates left and right, the sliding cylinder 45 can slide left and right in the fixed cylinder cavity 56, a sliding cylinder cavity 46 communicated with the fixed cylinder cavity 56 is arranged in the sliding cylinder 45, the injection cylinder 49 can slide left and right in the sliding cylinder cavity 46, an injection cylinder cavity 50 communicated with the sliding cylinder cavity 46 is arranged in the injection cylinder 49, a fixed block 47 is fixedly arranged on the right side of the upper end of the outer circular surface of the fixed cylinder 57, a sliding block 48 is fixedly arranged on the right side of the upper end of the outer circular surface of the sliding cylinder 45, a first spring 34 is fixedly connected between the fixed block 47 and the sliding block 48, an injection sliding block 39 is fixedly arranged on the right side of the upper end of the outer circular surface of the injection cylinder 49, a second spring 33 is fixedly connected between the sliding block 48 and the injection sliding block 39, the upper side of the left wall in the working cavity 32 is located the sliding block 48 and the right sliding block cavity 18 is arranged on the injection sliding block 39, the second spring 33 is bilaterally symmetrical and is located, a sliding gear shaft 54 is arranged between the front wall and the rear wall of the working cavity 32 in a rotating mode, and the centers of the outer circular surfaces of the sliding gear shaft 54 are fixedly provided with straight gears 28 which are respectively meshed with the sliding block 48 and the injection sliding block 39.
Beneficially, a bevel gear cavity 75 is formed in the rear upper side of the main body 11 and behind the injection sliding block 39, a control motor 72 is fixedly arranged right and left in the bevel gear cavity 75, a power shaft 73 is dynamically connected to the left end of the control motor 72, a power bevel gear 74 is fixedly arranged in the bevel gear cavity 75 and extends leftwards from the left end of the power shaft 73, a sliding bevel gear 104 engaged with the power bevel gear 74 is fixedly arranged on the front wall of the power bevel gear 74, an outer spline shaft 95 is fixedly connected to the front end of the sliding bevel gear 104, an inner spline shaft 96 is splined to the outer spline shaft 95, the inner spline shaft 96 is splined to the right sliding gear shaft 54, a spline shaft cavity 100 is formed in the lower end of the inner spline shaft 96, the inner spline shaft 96 can slide up and down in the spline shaft cavity 100, and electromagnetic cavities 99 are symmetrically formed in the left and right outer circular surfaces of, fixed slip electromagnetism piece 97 that is equipped with in upper end in the electromagnetism chamber 99, the left and right sides in the electromagnetism chamber 99 lower wall with fixed electromagnetism piece spring 98 that is equipped with between the terminal surface under the slip electromagnetism piece 97, the left side the fixed electromagnetism piece 81 that is equipped with of electromagnetism chamber 99 lower wall, right side terminal surface fixedly connected with electromagnetism piece stay cord 101 under the slip electromagnetism piece 97.
Beneficially, a gear transmission cavity 77 is arranged right left of the bevel gear cavity 75, a gear transmission shaft 69 is rotatably connected to the lower wall in the gear transmission cavity 77, a transmission bevel gear 78 is fixedly arranged on the upper end surface of the gear transmission shaft 69, the left end of the power shaft 73 extends leftwards to the inside of the gear transmission cavity 77 and is fixedly provided with a driven bevel gear 76 engaged with the transmission bevel gear 78, a rotation bevel gear 70 fixedly connected with the outer circular surface of the gear transmission shaft 69 is arranged right below the transmission bevel gear 78, an engagement bevel gear 71 engaged with the rotation bevel gear 70 is fixedly arranged on the left wall of the gear transmission cavity 77, a rotation member 68 is fixedly arranged on the left end axis of the engagement bevel gear 71, a linkage cavity 62 is arranged on the lower left side of the gear transmission cavity 77, a spline bevel gear 63 is rotatably connected to the right wall in the linkage cavity 62, and a spline outer shaft 60 is fixedly arranged on the, a spline-connected gear spline inner shaft 80 is arranged in the gear spline outer shaft 60, the gear spline inner shaft 80 and the rotating piece 68 are in spline connection with one end far away from the meshing bevel gear 71, a pressure spring cavity 66 is symmetrically arranged at the upper end and the lower end of the outer circular surface of the gear spline inner shaft 80 close to the gear transmission cavity 77, a pressure spring block 67 is rotatably connected in the pressure spring cavity 66 and the outer circular surface of the gear spline inner shaft 80, a pressure spring 79 is fixedly arranged between the right end surface of the pressure spring block 67 and the right wall of the pressure spring cavity 66, a pressure spring pull rope 64 connected with the electromagnetic block pull rope 101 is fixedly arranged at the center of the right end of the pressure spring block 67 at the upper side, and a linkage bevel gear 61 meshed with the spline bevel gear 63 is fixedly arranged in the linkage cavity 62 after the rear end of the sliding gear.
Advantageously, the injection mold 51 is communicated with an injection molding cavity 43 in the axial center, the upper end of the forming mold 53 is provided with a vent cavity 16 which is symmetrical about the injection molding cavity 43, the upper end of the right wall in the working cavity 32 is provided with an up-down symmetrical stripping rod 31, the right end of the outer circular surface of the stripping rod 31 is provided with a compression spring 30 which is fixedly connected with the right wall in the working cavity 32, and an inductor 35 is fixedly arranged above the sliding block 48 and on the upper wall of the working cavity 32.
Beneficially, a sliding motor 29 is fixedly arranged at the right lower side of the working cavity 32 at the right inner end of the main body 11, the right end of the screw rod 24 extends rightwards into the main body 11 and is in power connection with the left end of the sliding motor 29, a fixing rod 25 fixedly connected with the right wall of the working cavity 32 is arranged right below the screw rod 24, and the lower end of the sliding block 22 is in sliding connection with the outer circular surface of the fixing rod 25.
Beneficially, conveying shafts 20 are symmetrically and rotatably connected between the front wall and the rear wall in the conveying cavity 19, a conveying belt 21 is wound between the conveying shafts 20 on two sides, a conveying motor 91 is fixedly arranged at the front end in the main body 11 and at the right side in front of the conveying cavity 19, and the front end of the conveying shaft 20 on the right side extends forwards into the main body 11 and is in power connection with the rear end face of the conveying motor 91.
Beneficially, a belt wheel cavity 93 is formed in the rear end of the main body 11 and on the left side behind the conveying cavity 19, belt wheels 92 are fixedly arranged in the belt wheel cavity 93 in a bilateral symmetry manner, the rear end of the left side conveying shaft 20 extends backwards into the main body 11 and is fixedly connected with the right side belt wheel 92, a belt wheel cavity 93 is formed between the left side belt wheel 92 and the right side belt wheel 92, a belt wheel shaft 14 is fixedly arranged at the front end of the left side belt wheel 92, and the belt wheel shaft 14 extends forwards into the rotating rod linkage cavity 12 and is fixedly provided with a belt wheel bevel gear 13 engaged with the rotating rod bevel gear 15.
The following detailed description of the operation steps of an injection molding machine capable of automatically adjusting injection pressure and speed during operation is provided with reference to fig. 1 to 6: in the initial state, the conveying motor 91 is stopped, the conveying shaft 20 is stopped, the piston 59 is located at the left end of the high-pressure cavity 42, the injection mold 51 is located at the limit position which can be reached in the working cavity 32, the right end face of the injection mold 51 is attached to the left end face of the forming mold 53, the sliding motor 29 is stopped, the control motor 72 is stopped, and the melting box 58, the fixed material barrel 57, the sliding material barrel 45 and the injection material barrel 49 are filled with heating elements.
During injection molding, solid plastics are put into the plastic port 37 and enter the melting chamber 38 from the plastic port 37 to be heated and melted, after the plastics are melted, the conveying motor 91 is started to drive the conveying shaft 20 to rotate so as to drive the conveying belt 21 to convey rightwards, the left conveying shaft 20 rotates to drive the right belt pulley 92 so as to drive the left belt pulley 92 to rotate through synchronous transmission of the belt pulley chamber 93, so that the belt pulley bevel gear 13 is driven to drive the meshed rotating rod bevel gear 15 to rotate, the rotating rod bevel gear 15 drives the rotating rod 41 to rotate, and then the connecting rod 40 drives the piston 59 to reciprocate leftwards and rightwards in the high pressure chamber 42, at the moment, the high pressure chamber 42 is in a vacuum state, the molten plastics in the melting chamber 38 are reciprocated by the piston 59 and then pressed into the high pressure chamber 42 by atmospheric pressure through the one-way valve 36, and after the high pressure chamber 42, the fixed material barrel chamber 56, the sliding material barrel chamber 46 and the injection, with the continuous high-speed movement of the piston 59, the molten plastic is pressed into the injection molding cavity 43 under high pressure to fill the cavity formed by the attachment of the injection mold 51 and the molding mold 53 for molding the plastic, and the air in the mold is discharged leftwards by the molten plastic from the vent cavities 16 on the upper and lower sides.
After the injection molding is completed, after the plastic product is cooled and solidified, the sliding motor 29 is started to drive the screw 24 to rotate, and further drive the sliding block 22 to slide rightwards, the fixed rod 25 guides the sliding block 22 to slide linearly to prevent the sliding block 22 from rotating, the sliding block 22 slides to drive the forming mold 53 to move rightwards, and further connect the ventilation cavity 16 with the peeling rod 31, the peeling rod 31 pushes the plastic product fixed on the outer surface of the forming mold 53 to peel off, the compression spring 30 plays a buffering role to prevent the forming mold 53 from being accidentally damaged by excessive force, the plastic product falls on the upper surface of the fixed plate 23, the sliding motor 29 rotates reversely to drive the sliding block 22 and further drive the forming mold 53 to reset leftwards, the sliding block 22 drives the plastic product to slide leftwards, and further enters the conveying cavity 19.
When the injection pressure or the injection speed needs to be adjusted before or during injection, the control motor 72 is started to drive the power shaft 73 to rotate, and further drive the power bevel gear 74 to rotate to drive the engaged sliding bevel gear 104 to rotate, the power shaft 73 drives the driven bevel gear 76 to further rotate the transmission bevel gear 78 to drive the gear transmission shaft 69 to rotate, the gear transmission shaft 69 is engaged with the engaged bevel gear 71 through the rotating bevel gear 70 to drive the rotating member 68 to rotate, at this time, the sliding bevel gear 104 drives the spline outer shaft 95 and the spline inner shaft 96 to synchronously rotate to rotate the right sliding gear shaft 54, the right sliding gear shaft 54 drives the right spur gear 28 to rotate to further drive the injection sliding block 39 to slide leftward, the injection sliding block 39 drives the injection cylinder 49 to slide leftward in the sliding cylinder cavity 46 to further drive the injection mold 51 to move leftward, when the left end of the injection sliding block 39 passes under the, the inductor 35 starts the electromagnetic block 81, and further drives the sliding electromagnetic block 97 to slide forward in the electromagnetic cavity 99, so as to drive the spline inner shaft 96 to slide forward, at this time, the right sliding gear shaft 54 is not in threaded connection with the inner wall of the spline inner shaft 96 any more and further idles, the right sliding gear shaft 54 stops rotating, and further the spur gear 28 stops, and the injection sliding block 39 stops; meanwhile, the sliding electromagnetic block 97 slides forwards to drive the electromagnetic block pull rope 101 and further drive the pressure spring pull rope 64 to loosen, at this time, the compressed pressure spring 79 pushes the pressure spring block 67 to slide rightwards in the pressure spring cavity 66, so as to drive the internal spline shaft 80 to slide rightwards, so as to drive the rotating piece 68 to rotate in threaded connection with the internal wall of the internal spline shaft 80, the rotating piece 68 drives the external spline shaft 60 to rotate through the internal spline shaft 80, the external spline shaft 60 drives the spline bevel gear 63 and further drives the left sliding gear shaft 54 to rotate through the meshed linkage bevel gear 61, so as to drive the left spur gear 28 to rotate, the left spur gear 28 drives the sliding block 48 to move leftwards, so as to drive the sliding cylinder 45 to slide leftwards in the fixed cylinder cavity 56, and the left end of the sliding block 48 and the injection sliding block 39 can enter, thereby further shortening the injection distance and increasing the injection pressure and speed, and the molding die 53 can move along with the movement of the injection die 51.
After the injection molding is finished, the injection mold 51 and the forming mold 53 are reset, and the injection molding working steps are repeated to continuously produce plastic finished products.
The invention has the beneficial effects that: according to the invention, by adjusting the length of the injection cylinder and further controlling the injection pressure and speed, the molten plastic is firstly pressed into the charging barrel through the high-speed reciprocating motion of the piston, and then the length of the charging barrel can be adjusted in real time during injection molding by adjusting the whole length of the charging barrel so as to adjust the injection pressure and speed, so that the defect of generating bubbles or hidden bubbles after plastic molding is prevented, and the yield is improved.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (9)
1. The utility model provides an injection molding machine of ability automatically regulated injection pressure and speed in work, includes the main part, its characterized in that: upside is equipped with the ascending material mouth of moulding of opening in the main part left end, the fixed melting case that is equipped with in material mouth below, melting incasement upper end be equipped with the melting chamber that the plastics mouth is linked together, the fixed baffle that is equipped with of lower wall in the melting chamber, the melting incasement just is located the baffle below is equipped with opening right high-pressure chamber, the high-pressure intracavity is equipped with the piston that can the horizontal slip, the right-hand member just is located in the main part the right-hand working chamber that is equipped with of high-pressure chamber, the fixed feed cylinder of melting case right-hand member fixedly connected with, fixed feed cylinder right-hand member extends to right the sliding connection has the slip feed cylinder in the working chamber, slip feed cylinder right-hand member sliding connection has the injection cylinder, injection cylinder right-hand member fixedly connected with injection mold, work as the piston in when reciprocating motion about, The injection molding machine comprises a main body, a sliding material cylinder, an injection material cylinder cavity, a fixing plate, a screw rod, a slider, a plastic product forming mold and a main body, wherein the sliding material cylinder and the injection material cylinder cavity are pressed into the injection mold and then molded along with a mold cavity, the fixing plate is fixedly arranged on the right side of the lower wall of the working cavity and positioned between the front wall and the rear wall of the working cavity, the screw rod is fixedly connected with the lower side of the right wall of the working cavity and positioned above the center of the fixing plate, the slider is slidably connected with the outer circular surface of the screw rod, the forming mold is fixedly connected with the upper end of the slider, after the plastic product is formed, the slider drives the forming mold to slide rightwards to peel off a finished product.
2. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 1, wherein: the upper side just is located in the main part right-hand member the melting case left is equipped with the bull stick chamber, the rotatable bull stick that is equipped with of bull stick intracavity lower wall, bull stick left end hinged joint has the connecting rod, connecting rod right-hand member hinged joint in the piston left end face, bull stick chamber below just is located the downside is equipped with the bull stick linkage chamber in the main part left end, the rotatable bull stick bevel gear that is equipped with of bull stick linkage chamber upper wall fixed connection in bull stick rotation center, the fixed check valve that is equipped with of right-hand member in the baffle.
3. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 1, wherein: a fixed charging barrel cavity communicated from left to right is arranged in the fixed charging barrel, the sliding charging barrel can slide left and right in the fixed charging barrel cavity, a sliding charging barrel cavity communicated with the fixed charging barrel cavity is arranged in the sliding charging barrel, the injection charging barrel can slide left and right in the sliding charging barrel cavity, an injection charging barrel cavity communicated with the sliding charging barrel cavity is arranged in the injection charging barrel, a fixed block is fixedly arranged on the right side of the upper end of the outer circular surface of the fixed charging barrel, a sliding block is fixedly arranged on the right side of the upper end of the outer circular surface of the sliding charging barrel, a first spring is fixedly connected between the fixed block and the sliding block, an injection sliding block is fixedly arranged on the right side of the upper end of the outer circular surface of the injection charging barrel, a second spring is fixedly connected between the sliding block and the injection sliding block, the second spring top bilateral symmetry just is located rotate between the preceding back wall of working chamber and is equipped with the slip gear shaft, the left and right sides slip gear shaft excircle face center is fixed be equipped with respectively with the sliding block reaches the spur gear that the injection sliding block meshes mutually.
4. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 3, wherein: a bevel gear cavity is arranged at the inner upper side of the rear end of the main body and behind the injection sliding block, a control motor is fixedly arranged right and left of the bevel gear cavity, the left end of the control motor is in power connection with a power shaft, the left end of the power shaft extends leftwards to the bevel gear cavity and is fixedly provided with a power bevel gear, the front wall of the power bevel gear is fixedly provided with a sliding bevel gear meshed with the power bevel gear, the front end of the sliding bevel gear is fixedly connected with a spline outer shaft, the spline inner shaft is in spline connection with a spline inner shaft in the spline outer shaft, the spline inner shaft is in spline connection with the sliding gear shaft at the right side, the lower end of the spline inner shaft is provided with a spline shaft cavity, the spline inner shaft can slide up and down in the spline shaft cavity, electromagnetic cavities are symmetrically arranged left and right on the outer circular surface of the spline inner shaft, sliding electromagnetic blocks are, the left side the fixed electromagnetic piece that is equipped with of electromagnetic cavity lower wall, the right side terminal surface fixedly connected with electromagnetic piece stay cord under the slip electromagnetic piece.
5. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 4, wherein: a gear transmission cavity is arranged right left of the bevel gear cavity, a gear transmission shaft is rotatably connected with the inner lower wall of the gear transmission cavity, a transmission bevel gear is fixedly arranged on the upper end surface of the gear transmission shaft, a driven bevel gear meshed with the transmission bevel gear is fixedly arranged in the gear transmission cavity by extending the left end of the power shaft leftwards, a rotating bevel gear fixedly connected with the outer circular surface of the gear transmission shaft is arranged right below the transmission bevel gear, a meshing bevel gear meshed with the rotating bevel gear is fixedly arranged on the left wall of the gear transmission cavity, a rotating part is fixedly arranged on the left end shaft center of the meshing bevel gear, a linkage cavity is arranged on the lower side of the left side of the gear transmission cavity, a spline bevel gear is rotatably connected with the right wall of the linkage cavity, a gear spline outer shaft is fixedly arranged at the right end of, the inner shaft of the gear spline is connected with the rotating part through a spline far away from one end of the meshing bevel gear, the outer circular surface of the inner shaft of the gear spline is close to one end of the gear transmission cavity, pressure spring cavities are symmetrically arranged at the upper and lower parts of one end of the gear transmission cavity, pressure spring blocks are rotatably connected in the pressure spring cavities and with the outer circular surface of the inner shaft of the gear spline, pressure springs are fixedly arranged between the right end face of each pressure spring block and the right wall of each pressure spring cavity, pressure spring pull ropes connected with the electromagnetic block pull ropes are fixedly arranged at the centers of the right ends of the pressure spring blocks at the upper sides, and the rear ends of the sliding gear shafts extend backwards to the left.
6. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 1, wherein: the injection molding die is characterized in that an injection molding cavity is communicated with the inner axis of the injection molding die, a ventilation cavity symmetrical about the injection molding cavity is arranged at the upper end of the forming die, stripping rods which are symmetrical up and down are arranged at the upper end of the right wall in the working cavity, a compression spring fixedly connected with the right wall in the working cavity is arranged at the right end of the outer circular surface of each stripping rod, and an inductor is fixedly arranged above the sliding block and positioned on the upper wall of the working cavity.
7. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 1, wherein: the right-hand member just is located in the main part the fixed sliding motor that is equipped with of the right-hand downside of working chamber, the screw rod right-hand member extends to right in the main part and with sliding motor left end power is connected, be equipped with under the screw rod with right wall fixed connection's dead lever in the working chamber, the slider lower extreme with outer disc sliding connection of dead lever.
8. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 1, wherein: the conveying cavity is internally provided with a front wall and a rear wall, the front wall and the rear wall of the conveying cavity are symmetrically and rotatably connected with conveying shafts, conveying belts are wound between the conveying shafts to act on two sides, the front end of the main body is fixedly provided with a conveying motor on the right side in front of the conveying cavity, and the front end of the conveying shaft on the right side extends forwards into the main body and is in power connection with the rear end face of the conveying motor.
9. An injection molding machine capable of automatically adjusting injection pressure and speed during operation as claimed in claim 1, wherein: the rear end just is located in the main part carry chamber rear left side to be equipped with the band pulley chamber, the fixed band pulley that is equipped with of band pulley intracavity bilateral symmetry, the left side carry axle rear end backward extend to in the main part with the right side band pulley fixed connection, the left and right sides around being equipped with the band pulley chamber between the band pulley, the left side the fixed band pulley axle that is equipped with of band pulley front end, the band pulley axle extends forward the fixed band pulley bevel gear who is equipped with bull stick bevel gear engaged with bull stick linkage intracavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010723774.2A CN111890647A (en) | 2020-07-24 | 2020-07-24 | Injection molding machine capable of automatically adjusting injection pressure and speed during work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010723774.2A CN111890647A (en) | 2020-07-24 | 2020-07-24 | Injection molding machine capable of automatically adjusting injection pressure and speed during work |
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| CN111890647A true CN111890647A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010723774.2A Withdrawn CN111890647A (en) | 2020-07-24 | 2020-07-24 | Injection molding machine capable of automatically adjusting injection pressure and speed during work |
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| CN (1) | CN111890647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873760A (en) * | 2020-12-28 | 2021-06-01 | 林祖承 | Bubble-removing injection molding device with double-flow-passage structure for preventing gas from flowing in |
| CN113977887A (en) * | 2021-09-28 | 2022-01-28 | 冯杰 | Feeding device and feeding method based on liquid silica gel injection molding machine |
-
2020
- 2020-07-24 CN CN202010723774.2A patent/CN111890647A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873760A (en) * | 2020-12-28 | 2021-06-01 | 林祖承 | Bubble-removing injection molding device with double-flow-passage structure for preventing gas from flowing in |
| CN113977887A (en) * | 2021-09-28 | 2022-01-28 | 冯杰 | Feeding device and feeding method based on liquid silica gel injection molding machine |
| CN113977887B (en) * | 2021-09-28 | 2024-01-05 | 志源表面处理(惠州)有限公司 | Feeding device and feeding method based on liquid silica gel injection molding machine |
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Application publication date: 20201106 |
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