CN118163304B - Injection mold with buffer structure - Google Patents
Injection mold with buffer structure Download PDFInfo
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- CN118163304B CN118163304B CN202410594703.5A CN202410594703A CN118163304B CN 118163304 B CN118163304 B CN 118163304B CN 202410594703 A CN202410594703 A CN 202410594703A CN 118163304 B CN118163304 B CN 118163304B
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- spiral groove
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- mold
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- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 66
- 238000001746 injection moulding Methods 0.000 claims abstract description 25
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract 6
- 241001330002 Bambuseae Species 0.000 claims abstract 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract 6
- 239000011425 bamboo Substances 0.000 claims abstract 6
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000010405 clearance mechanism Effects 0.000 claims 4
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
-
- 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
- B29C45/34—Moulds having venting 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the field of injection molds, in particular to an injection mold with a buffer structure. The invention has the technical problems that the existing common injection mold has larger collision during mold closing, the guide and actuation mold is easy to damage, impurities are easy to remain at the top of the fixed mold, and the follow-up injection is inconvenient. The invention provides an injection mold with a buffer structure, which comprises a fixed mold and the like; the fixed die is provided with a shell, the lower part of the movable die is provided with an injection molding opening, the shell is provided with a primary buffer mechanism, and the primary buffer mechanism is provided with a driving mechanism. In the process of carrying out moulding plastics, the movable mould moves down to drive back type frame and spiral groove section of thick bamboo and upwards remove, make spiral groove section of thick bamboo stretch out from the shell, push down the spiral groove section of thick bamboo and move down afterwards, the fixed roller extrudees spiral groove section of thick bamboo, makes spiral groove section of thick bamboo rotatory, can carry out preliminary buffering to pushing down frame and movable mould, make the movable mould carry out the in-process of moulding plastics not fragile, extension movable mould's life.
Description
Technical Field
The invention relates to the field of injection molds, in particular to an injection mold with a buffer structure.
Background
Nowadays, injection molding products are widely applied to industries such as mobile phones, portable computers, various plastic shells, communication, micro motors and the like. In the injection molding process, the movable mould moves downwards to enable the movable mould and the fixed mould to be combined into a complete mould, injection molding raw materials are injected into the mould, the movable mould moves upwards after injection molding, and demoulding is carried out.
At present, the common injection mold structure is comparatively single, at movable mould downwardly moving carries out the in-process of compound die, has great collision between movable mould and the cover half, and long-time so, the easy guide actuation mould is impaired, reduces the life of movable mould to the impurity is remained easily at the cover half top, and when movable mould downwardly moving, impurity separation leads to movable mould and cover half to be difficult to close completely between movable mould and cover half, is inconvenient for follow-up moulding plastics, leads to the effect of moulding plastics inadequately.
Disclosure of Invention
The invention provides an injection mold with a buffer structure, which aims to overcome the defects that the existing common injection mold is easy to damage due to large collision when being clamped, impurities are easy to remain at the top of a fixed mold and inconvenient for subsequent injection molding, and can buffer the moving mold when moving downwards, so that the moving mold is not easy to damage in the injection molding process, the top of the fixed mold can be cleaned, and better injection molding is facilitated.
In order to solve the technical problems, the invention provides the injection mold with the buffer structure, which comprises a fixed mold, a shell, a movable mold, an injection molding opening, a primary buffer mechanism and a driving mechanism, wherein the shell is arranged on the fixed mold, the injection molding opening is arranged at the lower part of the movable mold, the primary buffer mechanism is arranged on the shell, and the driving mechanism is arranged on the primary buffer mechanism and is used for driving the primary buffer mechanism to primarily buffer the movable mold, so that the movable mold is not easy to damage during injection molding.
Preferably, the first-level buffer mechanism comprises a return type frame, spiral groove drums, fixed rollers and a pressing frame, the return type frame is connected in the shell in a sliding mode, four spiral groove drums are connected to the return type frame in a rotating mode, spiral grooves are formed in each spiral groove drum, four fixed rollers are fixedly connected to the inner wall of the shell, the fixed rollers are located in the spiral grooves of the spiral groove drums, the pressing frame is fixedly connected to the bottom of the movable die, and the pressing frame is located above the four spiral groove drums.
Preferably, the actuating mechanism is including post gear, the actuating rack, lower rack, trapezoidal piece, the transverse spring, fixed sloping frame and last rack, shell inner wall pivoted is connected with two post gears, two post gears are the symmetry setting, shell inner wall sliding connection has two actuating racks, all the rigid coupling has lower rack on every actuating rack, return type frame is gone up sliding connection has two sets of trapezoidal pieces, two sets of trapezoidal pieces are the symmetry setting, the number of every trapezoidal piece of group is two, every trapezoidal piece of group is contacted with the actuating rack, every trapezoidal piece all is connected with the transverse spring between returning type frame, shell inner wall top rigid coupling has two sets of fixed sloping frames, the number of every fixed sloping frame is two, fixed sloping frame is contacted with trapezoidal piece, the rigid coupling has two upper racks on the movable mould, two upper racks are the symmetry setting, upper rack and shell sliding connection, the last rack and lower rack that lie in the cover half same one side and post gear engagement.
Preferably, each fixed inclined frame is provided with an inclined plane.
Preferably, the device further comprises a secondary buffer mechanism, wherein the secondary buffer mechanism is arranged in the shell and comprises a cylinder body, an exhaust one-way valve, an air inlet one-way valve and a piston rod, the lower part of the inner wall of the shell is fixedly connected with four cylinder bodies, the bottom of each cylinder body is provided with the exhaust one-way valve and the air inlet one-way valve, the diameter of the air inlet one-way valve is larger than that of the exhaust one-way valve, the piston rod is connected in each cylinder body in a sliding mode, and the top of the piston rod is fixedly connected with the spiral groove cylinder.
Preferably, the cleaning device is arranged on the shell and connected with the return frame, the cleaning device comprises a sliding plate, porous pipes, vertical pipes, return pipes and hoses, the top of the return frame is fixedly connected with the sliding plate, the sliding plate is slidably connected with the shell, the porous pipes are rotatably connected with the sliding plate, three vertical pipes are fixedly connected with the porous pipes and are communicated with the porous pipes, the three vertical pipes are fixedly connected with the sliding plate, the return pipes are fixedly connected between the three exhaust check valves, the hoses are fixedly connected with the lower ends of the three vertical pipes, the hoses penetrate through the return frame, the hoses are communicated with the vertical pipes, and the hoses are communicated with the return pipes.
Preferably, the porous tube is provided with a plurality of air outlet holes.
Preferably, the device further comprises a swinging mechanism, wherein the swinging mechanism is arranged on the perforated pipe and connected with the sliding plate, the swinging mechanism comprises a swinging gear, driving racks, a movable roller and a corrugated groove ring, the swinging gears are fixedly connected at two ends of the perforated pipe, two driving racks are connected to the sliding plate in a sliding mode, the two driving racks are symmetrically arranged, the bottoms of the two driving racks are rotatably connected with the movable roller, the bottoms of the two spiral groove drums are fixedly connected with the corrugated groove ring, the corrugated groove ring is provided with a corrugated groove, and the movable roller is connected with the corrugated groove on the corrugated groove ring in a sliding mode.
The beneficial effects are that: 1. in the process of injection molding, the movable die moves downwards, the movable die drives the lower pressing frame and the upper rack to move downwards, the upper rack drives the column gear to rotate, the column gear drives the lower rack to move upwards, the lower rack drives the driving frame to move upwards, the driving frame moves upwards to push the trapezoid block to move upwards, the trapezoid block drives the return-type frame and the spiral groove cylinder to move upwards, the spiral groove cylinder stretches out of the shell, then the movable die drives the lower pressing frame to move downwards to be in contact with the spiral groove cylinder, the lower pressing frame extrudes the spiral groove cylinder to move downwards, the fixed roller extrudes the spiral groove cylinder to rotate, then the lower pressing frame moves downwards to be in contact with the shell, the movable die moves downwards to be in contact with the fixed die, the lower pressing frame extrudes the spiral groove cylinder to retract into the shell, so that the spiral groove cylinder moves downwards and rotates through the lower pressing frame, the lower pressing frame and the movable die can be buffered preliminarily, the movable die is not easy to damage in the process of injection molding, and the service life of the movable die is prolonged.
2. When the spiral groove cylinder moves upwards, the spiral groove cylinder drives the piston rod to move upwards, external air is sucked into the cylinder body through the air inlet one-way valve, when the lower pressing frame extrudes the spiral groove cylinder to move downwards, the spiral groove cylinder drives the piston rod to move downwards, the piston rod extrudes air in the cylinder body, the air in the cylinder body is discharged through the air outlet one-way valve, the air inlet speed in the cylinder body is higher than the air outlet speed because the diameter of the air inlet one-way valve is higher than the diameter of the air outlet one-way valve, the air in the cylinder body is slowly discharged, the piston rod moves downwards to compress the air in the cylinder body, further buffering can be carried out when the movable die moves downwards, the buffering effect is better, and the movable die is not easy to damage.
3. The upward movement of the return type frame can drive the sliding plate, the porous pipe and the vertical pipe to move upwards, the porous pipe can extend out of the fixed die, the air outlet hole on the porous pipe is led to leak, the return type frame can drive the sliding plate, the porous pipe and the vertical pipe to move downwards when moving downwards, the piston rod moves downwards to extrude air in the cylinder body, the air is discharged into the return type pipe through the exhaust check valve, the air in the return type pipe is discharged into the porous pipe through the hose and the vertical pipe, and the air in the porous pipe is discharged through the air outlet hole, so that the top of the fixed die can be cleaned, the residue of impurities is reduced, and better injection molding is facilitated.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a partial perspective structure of the primary buffer mechanism and the driving mechanism of the present invention.
Fig. 3 is a schematic view of a part of a driving mechanism of the present invention.
Fig. 4 is a schematic perspective view, partially in section, of a drive mechanism of the present invention.
Fig. 5 is a schematic cross-sectional perspective view of a spiral grooved drum of the present invention.
Fig. 6 is a schematic view of a partial perspective structure of a primary buffer mechanism according to the present invention.
Fig. 7 is a schematic perspective view, partially in section, of a primary cushioning mechanism and a drive mechanism of the present invention.
Fig. 8 is a schematic perspective view, partially in section, of the drive mechanism and secondary cushioning mechanism of the present invention.
Fig. 9 is an enlarged perspective view of fig. 8a according to the present invention.
Fig. 10 is a schematic diagram showing a disassembled perspective structure of the driving mechanism of the present invention.
FIG. 11 is a schematic perspective view, partially in section, of a secondary cushioning mechanism and a cleaning mechanism of the present invention.
FIG. 12 is a schematic perspective view, partially in section, of a secondary cushioning mechanism, a cleaning mechanism and a swing mechanism of the present invention.
FIG. 13 is a schematic view showing a partial perspective structure of the primary buffer mechanism, the secondary buffer mechanism and the cleaning mechanism of the present invention.
Fig. 14 is a schematic cross-sectional perspective view of the swing mechanism of the present invention.
FIG. 15 is a schematic cross-sectional perspective view of a corrugated fluted ring of the present invention.
Fig. 16 is a partially disassembled perspective view of the secondary buffer mechanism, the cleaning mechanism and the swing mechanism of the present invention.
The marks in the drawings are: 1-fixed die, 2-shell, 3-movable die, 4-injection port, 51-back frame, 52-spiral grooved cylinder, 53-fixed roller, 54-down frame, 61-column gear, 62-driving frame, 63-down rack, 64-trapezoid block, 65-transverse spring, 66-fixed oblique frame, 67-upper rack, 71-cylinder, 72-exhaust check valve, 73-intake check valve, 74-piston rod, 81-sliding plate, 82-porous pipe, 83-standpipe, 84-back pipe, 85-hose, 91-swing gear, 92-driving rack, 93-movable roller, 94-corrugated grooved ring.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example 1: the utility model provides an injection mold with buffer structure, as shown in fig. 1-13, including cover half 1, shell 2, movable mould 3, injection molding mouth 4, one-level buffer gear and actuating mechanism, be equipped with shell 2 on the cover half 1, movable mould 3 lower part has injection molding mouth 4 through flange joint, is equipped with one-level buffer gear on the shell 2, is equipped with actuating mechanism on the one-level buffer gear, and actuating mechanism is used for driving one-level buffer gear and carries out preliminary buffering to movable mould 3 for movable mould 3 is not fragile when moulding plastics.
The primary buffer mechanism comprises a return type frame 51, spiral groove drums 52, fixed rollers 53 and a pressing frame 54, the return type frame 51 is connected in the shell 2 in a sliding mode, four spiral groove drums 52 are connected to the return type frame 51 in a rotating mode, the spiral groove drums 52 are arranged vertically, each spiral groove drum 52 is provided with a spiral groove, four fixed rollers 53 are fixedly connected to the inner wall of the shell 2, the fixed rollers 53 are located in spiral grooves of the spiral groove drums 52, the fixed rollers 53 are used for extruding the spiral groove drums 52 to rotate, the pressing frame 54 is fixedly connected to the bottom of the movable die 3, the pressing frame 54 is located above the four spiral groove drums 52, and the pressing frame 54 moves downwards and contacts with the spiral groove drums 52.
The driving mechanism comprises a column gear 61, a driving frame 62, a lower rack 63, trapezoid blocks 64, transverse springs 65, fixed inclined frames 66 and an upper rack 67, wherein two column gears 61 are connected to the inner wall of the shell 2 in a rotating mode, the two column gears 61 are symmetrically arranged, two driving frames 62 are connected to the inner wall of the shell 2 in a sliding mode, two upper racks 63 are welded to each driving frame 62, two groups of trapezoid blocks 64 are symmetrically arranged, the number of each group of trapezoid blocks 64 is two, each group of trapezoid blocks 64 is in contact with the driving frame 62, transverse springs 65 are connected between each trapezoid block 64 and the corresponding returning frame 51, two groups of fixed inclined frames 66 are welded to the inner wall of the shell 2, the fixed inclined frames 66 are in contact with the trapezoid blocks 64, the fixed inclined frames 66 are used for limiting the trapezoid blocks 64, two upper racks 67 are fixedly connected to the moving die 3 and are symmetrically arranged, the upper racks 67 are in sliding connection with the shell 2, and the upper racks 67 are positioned on the same side of the fixed die 1 and meshed with the lower racks 61.
Each of the fixed ledges 66 is provided with a bevel.
In the injection molding process, the movable mold 3 moves downwards, the movable mold 3 drives the lower pressing frame 54 and the upper rack 67 to move downwards, the upper rack 67 drives the column gear 61 to rotate, the column gear 61 drives the lower rack 63 to move upwards, the lower rack 63 drives the driving frame 62 to move upwards, the driving frame 62 moves upwards to push the trapezoid block 64 to move upwards, the trapezoid block 64 drives the return frame 51 and the spiral groove drum 52 to move upwards, the spiral groove drum 52 stretches out of the shell 2, then the driving frame 62 drives the trapezoid block 64 to move upwards, the inclined planes on the fixed inclined frame 66 extrude the two trapezoid blocks 64 of the same group to move in the direction away from each other, so that the trapezoid block 64 is separated from the driving frame 62, then the upper rack 67 moves downwards to be disengaged from the column gear 61, the movable mold 3 drives the lower pressing frame 54 to move downwards until contacting the spiral groove drum 52, the lower pressing frame 54 extrudes the spiral groove drum 52 to move downwards, the fixed roller 53 presses the spiral groove drum 52 so that the spiral groove drum 52 rotates, the spiral groove drum 52 moves downwards to drive the return frame 51 and the trapezoid block 64 to move downwards, the trapezoid block 64 is separated from contact with an inclined surface on the fixed inclined frame 66, the fixed inclined frame 66 does not press the trapezoid block 64 any more, the transverse spring 65 resets to drive the trapezoid block 64 to reset, then the lower pressing frame 54 moves downwards to be in contact with the shell 2, the movable die 3 moves downwards to be in contact with the fixed die 1, the lower pressing frame 54 presses the spiral groove drum 52 to retract into the shell 2, a worker injects injection molding raw materials into the fixed die 1 and the movable die 3 through the injection molding opening 4, then the movable die 3 moves upwards and drives the lower pressing frame 54 and the upper rack 67 to move upwards, the upper rack 67 drives the post gear 61 to rotate reversely, the lower rack 63 and the driving frame 62 move downwards, the driving frame 62 presses the two trapezoid blocks 64 of the same group to move towards a direction away from each other, the driving frame 62 continues to move downwards and moves to the lower part of the trapezoid block 64 again, the transverse spring 65 resets to drive the trapezoid block 64 to reset, the spiral groove barrel 52 is extruded by the lower pressing frame 54 to move downwards and rotate, the lower pressing frame 54 and the movable die 3 can be preliminarily buffered, the movable die 3 is not easy to damage in the injection molding process, and the service life of the movable die 3 is prolonged.
Example 2: on the basis of embodiment 1, as shown in fig. 11-13, the device further comprises a secondary buffer mechanism, the secondary buffer mechanism is arranged in the shell 2 and used for further buffering the movable mould 3, the secondary buffer mechanism comprises a cylinder 71, an exhaust check valve 72, an air inlet check valve 73 and a piston rod 74, four cylinders 71 are fixedly connected to the lower portion of the inner wall of the shell 2, an exhaust check valve 72 and an air inlet check valve 73 are arranged at the bottom of each cylinder 71, the exhaust check valve 72 is used for exhausting air, air enters the cylinders 71 through the air inlet check valves 73, the diameter of the air inlet check valves 73 is larger than that of the exhaust check valves 72, the air inlet speed in the cylinders 71 is larger than that of the air exhaust speed, the piston rod 74 is connected in each cylinder 71 in a sliding mode, and the top of the piston rod 74 is fixedly connected with the spiral groove cylinder 52.
When the spiral groove drum 52 moves upwards, the spiral groove drum 52 drives the piston rod 74 to move upwards, external air is sucked into the drum 71 through the air inlet one-way valve 73, when the lower pressing frame 54 presses the spiral groove drum 52 to move downwards, the spiral groove drum 52 drives the piston rod 74 to move downwards, the piston rod 74 extrudes air in the drum 71, the air in the drum 71 is discharged through the air outlet one-way valve 72, the air inlet speed in the drum 71 is higher than the air outlet speed due to the fact that the diameter of the air inlet one-way valve 73 is higher than the diameter of the air outlet one-way valve 72, the air in the drum 71 is slowly discharged, the air in the drum 71 can be compressed by the downward movement of the piston rod 74, further buffering can be carried out when the movable die 3 moves downwards, the buffering effect is better, and the movable die 3 is not easy to damage.
Based on embodiment 2, as shown in fig. 11-14, the device further comprises a cleaning mechanism, the cleaning mechanism is arranged on the shell 2 and connected with the back-shaped frame 51, the cleaning mechanism comprises a sliding plate 81, a porous pipe 82, a vertical pipe 83, a back-shaped pipe 84 and a hose 85, the top of the back-shaped frame 51 is connected with the sliding plate 81 through bolts, the sliding plate 81 is slidably connected with the shell 2, the porous pipe 82 is rotatably connected with the sliding plate 81, the porous pipe 82 is used for discharging air to the top of the fixed die 1, three vertical pipes 83 are fixedly connected with the porous pipe 82, the three vertical pipes 83 are all communicated with the porous pipe 82, the three vertical pipes 83 are fixedly connected with the sliding plate 81, a back-shaped pipe 84 is fixedly connected between the three exhaust check valves 72, the lower ends of the three vertical pipes 83 are all fixedly connected with the hose 85, the hose 85 is made of soft materials, the hose 85 passes through the back-shaped frame 51, the hose 85 is communicated with the back-shaped pipe 83, and the hose 85 is communicated with the back-shaped pipe 84.
The perforated tube 82 is provided with a plurality of air outlet holes.
The upward movement of the mold returning frame 51 drives the sliding plate 81, the porous pipe 82 and the vertical pipe 83 to move upwards, the hose 85 is straightened, the porous pipe 82 stretches out of the fixed mold 1, so that the air outlet hole on the porous pipe 82 leaks out, the air outlet hole of the porous pipe 82 faces the top of the fixed mold 1, the downward movement of the mold returning frame 51 drives the sliding plate 81, the porous pipe 82 and the vertical pipe 83 to move downwards, the piston rod 74 moves downwards to extrude air in the cylinder 71, the air is discharged into the mold returning pipe 84 through the exhaust one-way valve 72, the air in the mold returning pipe 84 is discharged into the porous pipe 82 through the hose 85 and the vertical pipe 83, and the air in the porous pipe 82 is discharged through the air outlet hole, so that the top of the fixed mold 1 can be cleaned, the residues of impurities are reduced, and better injection molding is facilitated; then the return frame 51 drives the sliding plate 81, the perforated pipe 82 and the vertical pipe 83 to move downwards, and the perforated pipe 82 is retracted back into the fixed mold 1.
Example 4: on the basis of embodiment 3, as shown in fig. 12, 14, 15 and 16, the device further comprises a swinging mechanism, the swinging mechanism is arranged on the perforated pipe 82 and connected with the sliding plate 81, the swinging mechanism comprises a swinging gear 91, driving racks 92, a movable roller 93 and a corrugated groove ring 94, both ends of the perforated pipe 82 are connected with the swinging gear 91 through flat keys, the sliding plate 81 is slidably connected with two driving racks 92, the two driving racks 92 are symmetrically arranged, the bottoms of the two driving racks 92 are rotatably connected with the movable roller 93, the bottoms of the two spiral groove drums 52 are fixedly connected with the corrugated groove ring 94, the corrugated groove ring 94 is provided with corrugated grooves, the movable roller 93 is slidably connected with the corrugated grooves on the corrugated groove ring 94, and the movable roller 93 is driven to reciprocate up and down when the corrugated groove ring 94 rotates.
When the spiral groove drum 52 rotates, the movable roller 93 is driven to reciprocate up and down, the movable roller 93 drives the driving rack 92 to reciprocate up and down, the driving rack 92 drives the swinging gear 91 to reciprocate, and the swinging gear 91 reciprocates to drive the perforated pipe 82 to reciprocate, so that the perforated pipe 82 blows out air at more angles, and impurities at the top of the fixed mold 1 can be cleaned in a larger range.
The foregoing examples have shown only the preferred embodiments of the invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications, improvements and substitutions can be made by those skilled in the art without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (4)
1. An injection mold with buffer structure, its characterized in that: the injection molding machine comprises a fixed die (1), a shell (2), a movable die (3), an injection molding opening (4), a primary buffer mechanism and a driving mechanism, wherein the shell (2) is arranged on the fixed die (1), the injection molding opening (4) is arranged at the lower part of the movable die (3), the primary buffer mechanism is arranged on the shell (2), the driving mechanism is arranged on the primary buffer mechanism and is used for driving the primary buffer mechanism to primarily buffer the movable die (3), so that the movable die (3) is not easy to damage during injection molding;
The primary buffer mechanism comprises a return type frame (51), spiral groove drums (52), fixed rollers (53) and a pressing frame (54), the return type frame (51) is connected in a sliding mode in the shell (2), four spiral groove drums (52) are connected to the return type frame (51) in a rotating mode, spiral grooves are formed in each spiral groove drum (52), four fixed rollers (53) are fixedly connected to the inner wall of the shell (2), the fixed rollers (53) are located in the spiral grooves of the spiral groove drums (52), the pressing frame (54) is fixedly connected to the bottom of the movable die (3), and the pressing frame (54) is located above the four spiral groove drums (52);
The driving mechanism comprises a column gear (61), a driving frame (62), a lower rack (63), trapezoid blocks (64), transverse springs (65), fixed inclined frames (66) and an upper rack (67), wherein the inner wall of a shell (2) is rotationally connected with the two column gears (61), the two column gears (61) are symmetrically arranged, the inner wall of the shell (2) is slidably connected with the two driving frames (62), the lower rack (63) is fixedly connected on each driving frame (62), the two trapezoid blocks (64) are slidably connected on a return-type frame (51), the two trapezoid blocks (64) are symmetrically arranged, the number of each trapezoid block (64) is two, each trapezoid block (64) is in contact with the driving frame (62), the transverse springs (65) are connected between each trapezoid block (64) and the return-type frame (51), the two fixed inclined frames (66) are fixedly connected at the top of the inner wall of the shell (2), the fixed inclined frames (66) are in contact with the trapezoid blocks (64), the two upper racks (67) are symmetrically arranged on a movable die (3), an upper rack (67) and a lower rack (63) positioned on the same side of the fixed die (1) are meshed with the column gear (61);
An inclined plane is arranged on each fixed inclined frame (66);
The novel air-conditioning device is characterized by further comprising a secondary buffer mechanism, wherein the secondary buffer mechanism is arranged in the shell (2) and comprises a cylinder body (71), an exhaust one-way valve (72), an air inlet one-way valve (73) and a piston rod (74), four cylinder bodies (71) are fixedly connected to the lower portion of the inner wall of the shell (2), the exhaust one-way valve (72) and the air inlet one-way valve (73) are arranged at the bottom of each cylinder body (71), the diameter of the air inlet one-way valve (73) is larger than that of the exhaust one-way valve (72), the piston rod (74) is connected in each cylinder body (71) in a sliding mode, and the top of the piston rod (74) is fixedly connected with the spiral groove cylinder (52).
2.An injection mold with a cushioning structure according to claim 1, wherein: still including clearance mechanism, clearance mechanism locates on shell (2), clearance mechanism is connected with returning type frame (51), clearance mechanism is including sliding plate (81), porous pipe (82), standpipe (83), return type pipe (84) and hose (85), return type frame (51) top rigid coupling has sliding plate (81), sliding plate (81) are connected with shell (2) slidingtype, be connected with porous pipe (82) on sliding plate (81), rigid coupling has three standpipe (83) on porous pipe (82), three standpipe (83) all communicate with porous pipe (82), three standpipe (83) all are with sliding plate (81) rigid coupling, rigid coupling has back type pipe (84) between three exhaust check valve (72), three standpipe (83) lower extreme all are rigid coupling has hose (85), hose (85) pass returning type frame (51), hose (85) communicate with standpipe (83), hose (85) communicate with return type pipe (84).
3. An injection mold with cushioning structure according to claim 2, wherein: the porous pipe (82) is provided with a plurality of air outlet holes.
4. An injection mold having a cushioning structure according to claim 3, wherein: still including swing mechanism, swing mechanism locates on porous pipe (82), swing mechanism is connected with sliding plate (81), swing mechanism is including swing gear (91), drive rack (92), movable roller (93) and ripple groove ring (94), swing gear (91) are all fixedly connected at porous pipe (82) both ends, sliding plate (81) are gone up slidingtype and are connected with two drive racks (92), two drive racks (92) are the symmetry setting, two drive racks (92) bottom all have rotated and have connect movable roller (93), wherein two helical groove section of thick bamboo (52) bottom all rigid coupling have ripple groove ring (94), it has the ripple groove to open on ripple groove ring (94), the ripple groove on movable roller (93) and the ripple groove ring (94) is connected in a sliding way.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410594703.5A CN118163304B (en) | 2024-05-14 | 2024-05-14 | Injection mold with buffer structure |
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| CN202410594703.5A CN118163304B (en) | 2024-05-14 | 2024-05-14 | Injection mold with buffer structure |
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| CN118163304B true CN118163304B (en) | 2024-10-15 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212888679U (en) * | 2020-06-09 | 2021-04-06 | 杭州乐佰隆机械制造有限公司 | Double-guide mechanism of injection mold frame |
| CN115320012A (en) * | 2022-08-11 | 2022-11-11 | 涂亮 | Injection mold convenient to transport |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212888679U (en) * | 2020-06-09 | 2021-04-06 | 杭州乐佰隆机械制造有限公司 | Double-guide mechanism of injection mold frame |
| CN115320012A (en) * | 2022-08-11 | 2022-11-11 | 涂亮 | Injection mold convenient to transport |
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| CN118163304A (en) | 2024-06-11 |
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