CN105666810A - Injection mould for thin-walled product - Google Patents
Injection mould for thin-walled product Download PDFInfo
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- CN105666810A CN105666810A CN201610179991.3A CN201610179991A CN105666810A CN 105666810 A CN105666810 A CN 105666810A CN 201610179991 A CN201610179991 A CN 201610179991A CN 105666810 A CN105666810 A CN 105666810A
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- Prior art keywords
- elbow
- slide block
- pivoted arm
- oil cylinder
- extruding
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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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
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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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
- B29C2045/5635—Mould integrated compression drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
- B29C2045/5665—Compression by transversely movable mould parts
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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 mould for a thin-walled product. The injection mould comprises a moving mould core and an intra-mould extrusion device, wherein a sliding hole is formed in the moving mould core, and an orifice of the sliding hole is located on the molding surface of the moving mould core; the intra-mould extrusion device comprises an extrusion slide block, a toggle mechanism, an oil cylinder and an extrusion control device, wherein the extrusion slide block is telescopically arranged in the sliding hole, the end surface of the head of the extrusion slide block retracts into the sliding hole and forms a mould cavity with the wall of the sliding hole when the extrusion slide block retracts, and the end surface of the head of the extrusion slide block is leveled with the molding surface of the moving mould core when the extrusion slide block protrudes; the oil cylinder is connected with the extrusion slide block through the toggle mechanism; the extrusion control device is used for controlling the telescopic movement of the oil cylinder; and the oil cylinder protrudes or retracts to drive the toggle mechanism to unbend or bend, so that the protrusion or retraction of the extrusion slide block is realized. The injection mould for the thin-walled product can be used for producing ultra-thin plastic products with the wall thickness of smaller than 1.2mm and can also be used for ensuring the product thickness stability and production stability.
Description
Technical field
The present invention relates to injection molding technology field, particularly relate to a kind of thin-wall product injection mold.
Background technology
At present, partly plastic product exists the ultra-thin position of wall thickness (more than 2.5mm as average in ABS material local below 1.2mm) of larger area, and this type of ultra-thin position is molded in conventional injection moulding production technology cannot to realize, only adopt a kind of possible shaping scheme steam mold forming technology, but steam molding technology needs extra increase steaming plant factory building track remodelling etc., if not being that big batch is applied, there is die cost very high, production efficiency is low, the drawback that cost is very high, and in producing also there is very difficult beating in ultra-thin region, Shooting Technique difficulty debugging, the problem of walled thickness instability.
In order to solve the problem, Chinese patent (CN105034244A) discloses a kind of thin-walled low-pressure injection molding post forming mechanism, the post forming device of this shaping mechanism comprises top block and oil cylinder, and after first time, note glue completed, hydraulic oil cylinder driving top block has up moved the shaping action of second time. The oil cylinder Direct driver top block of this shaping mechanism, owing to oil cylinder pressure only has about 10MPA usually, and for ultrathin products (below thickness 1.2mm), the injection pressure that top block is subject in compression process very big (usually reaching 60～100MPA), hydraulic oil cylinder driving power wretched insufficiency.
Summary of the invention
For above-mentioned prior art present situation, the present invention provides a kind of thin-wall product injection mold, and it can be used for producing wall thickness at the local of below 1.2mm or overall thin-walled plastic product.
In order to solve the problems of the technologies described above, a kind of thin-wall product injection mold provided by the present invention, comprises mavable module core and Mo Nei squeezing device, and described mavable module core is provided with sliding hole, and the aperture in this cunning hole is positioned in the molding surface of mavable module core; In described mould, squeezing device comprises extruding slide block, Qu Zhou mechanism, oil cylinder and extruding control device, described extruding slide block is installed in described sliding hole scalablely, when extruding slide retraction, die cavity is formed between the hole wall in the end face retraction Nei Yuhua hole, described sliding hole of extruding slider head, when extruding slide block and stretch out, the end face of extruding slider head and the molding surface flush of mavable module core;Described oil cylinder is connected with described extruding slide block by Qu Zhou mechanism, and described extruding control device is for controlling the flexible motion of described oil cylinder, and described oil cylinder stretches out or retracts to drive described Qu Zhou mechanism to stretch or bend, thus realizes described extruding slide block and stretch out or retract.
Wherein in an embodiment, described Qu Zhou mechanism comprises first and bends elbow pivoted arm, the 2nd elbow pivoted arm in the wrong and elbow seat in the wrong, the afterbody that described first first end bending elbow pivoted arm passes through the first elbow rotating shaft in the wrong and described extruding slide block is hinged, the first end that first the 2nd end bending elbow pivoted arm bends elbow pivoted arm by the 2nd elbow rotating shaft in the wrong and the 2nd is hinged, 2nd end of the 2nd elbow pivoted arm in the wrong is hinged by the 3rd elbow rotating shaft in the wrong and elbow seat in the wrong, and the 2nd bends elbow rotating shaft is connected with the expansion link of described oil cylinder.
Wherein in an embodiment, between the first end that described first bends between the first end of elbow pivoted arm and the afterbody of described extruding slide block, the described first the 2nd end bending elbow pivoted arm bends elbow pivoted arm with the described 2nd and the described 2nd bend and adopt convex-concave cambered surface to coordinate between the 2nd end of elbow pivoted arm and described elbow seat in the wrong, when Shi Qu elbow mechanism stretches, bear pressure by cambered surface.
Wherein in an embodiment, the end face of the described first first end bending elbow pivoted arm is outer the first convex outer convex arc surface, the afterbody of described extruding slide block is provided with concaved circular cambered surface in the first of the indent that convex arc surface outer with first is mated mutually, the end face of the described first the 2nd end bending elbow pivoted arm is outer the 2nd convex outer convex arc surface, described 2nd first end bending elbow pivoted arm is provided with concaved circular cambered surface in the 2nd of the indent mated mutually with described 2nd outer convex arc surface the, the end face of the described 2nd the 2nd end bending elbow pivoted arm is outer the 3rd convex outer convex arc surface, described elbow seat in the wrong is provided with concaved circular cambered surface in the 3rd of the indent mated mutually with described 3rd outer convex arc surface.
Wherein in an embodiment, the first end of the 2nd end and the described 2nd elbow pivoted arm in the wrong that the afterbody, described first of described extruding slide block bends elbow pivoted arm is all in fork-shaped, the first end of the described first elbow pivoted arm in the wrong is between two fork arms of the fork-shaped afterbody of described extruding slide block, and the 2nd end of the described first elbow pivoted arm in the wrong is between two fork arms of the fork-shaped first end of the described 2nd elbow pivoted arm in the wrong.
Wherein in an embodiment, in described mould, squeezing device also comprises extruding connecting rod, and one end of described extruding connecting rod is bent elbow rotating shaft with the described 2nd and is connected, and the other end of described extruding connecting rod is connected with the expansion link of described oil cylinder.
Wherein in an embodiment, when extruding slide retraction, the spacing between the end face of described extruding slider head and the molding surface of described mavable module core is 2.5mm～3.5mm.
Wherein in an embodiment, described sliding hole is T-shaped, and described extruding slide block is the T-shaped that hole sliding with described T-shaped coordinates.
Wherein in an embodiment, described extruding control device comprises:
Controller, the signal input terminus of controller is connected with the injection signal output terminal of injection moulding machine, for receiving injection signal from injection moulding machine, and produces control signal; With
Hydraulicvalve, for controlling, described oil cylinder stretches out or retracts described hydraulicvalve, and A group coil and the B group coil of described hydraulicvalve are connected with the signal output terminal of described controller respectively;
When controller receives injection signal, outputing control signals to B group coil after time delay first setting-up time, described hydraulicvalve controls described oil cylinder and stretches out, and outputs control signals to A group coil after the 2nd setting-up time, and described hydraulicvalve controls described oil cylinder and retracts.
Wherein in an embodiment, described extruding control device also comprises mould upper stroke switch, travel switch driving lever and pilot lamp, the expansion link of described travel switch driving lever and described oil cylinder is synchronized with the movement, upper stroke switch is arranged on the side of travel switch driving lever, and be connected with described controller, pilot lamp is connected with described controller; When described oil cylinder stretches out, described travel switch driving lever triggers described mould upper stroke switch, pilot lamp described in described controller opens.
Compared with prior art, thin-wall product injection mold provided by the invention, extruding slide block is connected with oil cylinder by Qu Zhou mechanism, Qu Zhou mechanism can power magnify 20 or more, thus overcome huge injection pressure, with the requirement of satisfied production wall thickness at below 1.2mm ultrathin products, substitute and surmount the steam height light injection moulding production technique of high cost, injection moulding production efficiency 40% can be promoted, reduce piece-production cost about 60%, at the same time it is assured that product thickness is stable and administration measure; And, bend fluid cylinder stroke when elbow structure is stretched short, conventional oil pressing system can be accomplished, speed of response is little on injection moulding impact, and it is easier to control.
The useful effect that additional technical feature of the present invention has will be described in this specification sheets embodiment part.
Accompanying drawing explanation
Fig. 1 is the perspective view of the thin-wall product injection mold in the embodiment of the present invention;
Fig. 2 is the plan structure schematic diagram of the thin-wall product injection mold in the embodiment of the present invention;
Fig. 3 is the sectional view of line A-A along Fig. 2;
Perspective view when Fig. 4 is that in the mould in the embodiment of the present invention, squeezing device Qu Zhou mechanism is bending;
Main TV structure schematic diagram when Fig. 5 is that in the mould in the embodiment of the present invention, squeezing device Qu Zhou mechanism is bending;
Right TV structure schematic diagram when Fig. 6 is that in the mould in the embodiment of the present invention, squeezing device Qu Zhou mechanism is bending;
Fig. 7 is the sectional view of line B-B along Fig. 6;
Fig. 8 is that in the mould in the embodiment of the present invention, squeezing device Qu Zhou mechanism bends main TV structure schematic diagram when stretching;
Fig. 9 is that in the mould in the embodiment of the present invention, squeezing device Qu Zhou mechanism bends sectional structure schematic diagram when stretching;
Figure 10 is the schematic diagram of the extruding control device in the embodiment of the present invention.
Description of reference numerals: 1, oil cylinder; 2, oil cylinder fixing base; 3, travel switch; 4, travel switch driving lever; 5, connecting rod is extruded; 6, slide block is extruded; Concaved circular cambered surface in 6a, first; The end face of 6b, extruding slider head; 7, product; 8, first elbow pivoted arm is bent; 8a, the first outer convex arc surface; 8b, the 2nd outer convex arc surface; 9, first elbow rotating shaft is bent; 10, elbow seat is bent; Concaved circular cambered surface in 10a, the 3rd; 11, mavable module core; 11a, sliding hole; 11b, molding surface; 11c, bent elbow container cavity; 12, Qu Zhou mechanism; 13, the 2nd elbow pivoted arm is bent; Concaved circular cambered surface in 13a, the 2nd; 13b, the 3rd outer convex arc surface; 14, the 2nd elbow rotating shaft is bent; 15, the 3rd elbow rotating shaft is bent; 20, control device is extruded; 21, controller; 22, hydraulicvalve; 23, pilot lamp.
Embodiment
Below with reference to the accompanying drawings and the present invention is described in detail in conjunction with the embodiments. It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
As Figure 1-3, thin-wall product injection mold in one of them embodiment of the present invention comprises mavable module core 11, fixed mold core (not shown) and Mo Nei squeezing device, the molding surface 11b of mavable module core 11 coordinates formation die die cavity with the molding surface of fixed mold core, mavable module core 11 is provided with the sliding hole 11a of T-shaped, and the aperture of this cunning hole 11a is positioned on the molding surface 11b of mavable module core 11.More preferably, mavable module core 11 is also provided with bent elbow container cavity 11c.
In described mould, squeezing device comprises extruding slide block 6, Qu Zhou mechanism 12, extruding connecting rod 5, oil cylinder 1 and extruding control device 20, wherein, extruding slide block 6 is the T-shaped that hole 11a sliding with the T-shaped on mavable module core 11 matches, and extruding slide block 6 is installed in described sliding hole 11a scalablely. When extruding slide block 6 and retract, the end face 6b of extruding slide block 6 head is so that, in the setpoint distance L described sliding hole 11a of retraction (as shown in Figure 3), L is preferably 2.5mm～3.5mm; When extruding slide block 6 and stretch out, the end face 6b of extruding slide block 6 head and the molding surface 11b flush of mavable module core 11. The afterbody of described extruding slide block 6 is fork-shaped.
Composition graphs 3, shown in 4-9, Qu Zhou mechanism 12 is loaded in bent elbow container cavity 11c, Qu Zhou mechanism 12 in the present embodiment comprises first and bends elbow pivoted arm 8, 2nd bends elbow pivoted arm 13 and elbow seat 10 in the wrong, first bends the 2nd end of elbow pivoted arm 8, the first end of the 2nd elbow pivoted arm 13 in the wrong and the 2nd end are all in fork-shaped, the first end of the described first elbow pivoted arm 8 in the wrong is between two fork arms of the fork-shaped afterbody of described extruding slide block 6, and it is hinged to pitch arms by the first bend the fork-shaped afterbody of elbow rotating shaft 9 with described extruding slide block 6 two, 2nd end of the first elbow pivoted arm 8 in the wrong is between two fork arms of the fork-shaped first end of the described 2nd elbow pivoted arm 13 in the wrong, and two the fork arms being bent the fork-shaped first end of elbow pivoted arm 13 by the 2nd elbow rotating shaft 14 in the wrong and the 2nd are hinged, 2nd fork-shaped the 2nd end bending elbow pivoted arm 13 is bent elbow rotating shaft 15 by the 3rd and is hinged on elbow seat 10 in the wrong, bend elbow seat 10 to be fixed on mavable module core 11. like this, Qu Zhou mechanism 12 stretch or bending time drive extruding slide block 6 stretch out or retract. Qu Zhou mechanism 12 power magnify 20 or more, thus can overcome huge injection pressure, meets the pressure requirements of ultrathin products injection moulding. with conventional tiltedly carve structure compared with, Qu Zhou mechanism also has the following advantages: 1, tiltedly carving structure rising 3mm needs stroke 60mm, oil cylinder whole extruding at least wants 2 seconds instantaneous oil flows to oil hydraulic system to require very high opening time, for injection cycle 4 seconds, speed of response is inadequate, and the finished product apparent thickness etc. are all unstable, and bend the identical lifting height of elbow structure and only need stroke 13mm, conventional oil pressing system can be accomplished to put in place in 0.5 second, and speed of response is little on injection moulding impact, and it is easier to control. 2, when low angle tiltedly carves conversion power, friction loss ratio is very big, and true translation becomes the squeeze of vertical direction not enough. and it is a lot of less to bend the long-pending few frictional force of elbow structure interface, it is only necessary to individual part rigidity is enough. 3, bending elbow structure possesses about more big close to vertical squeeze, and requires low to oil cylinder, extrusion stability, if there being cylinder power not enough, that elbow structure in the wrong can not moved completely, can guarantee like this to put in place with not in place very clear, also facilitate production testing.
More preferably, between described first end face of first end bending elbow pivoted arm 8 and described extruding slide block 6, the described first end face of the 2nd end bending elbow pivoted arm 8 bend with the described 2nd elbow pivoted arm 13 first end end face between and the described 2nd bend and adopt convex-concave cambered surface to coordinate between the end face of the 2nd end of elbow pivoted arm 13 and described elbow seat 10 in the wrong, bear pressure by cambered surface when Shi Qu elbow mechanism 12 stretches, the rigidity of whole Qu Zhou mechanism 12 is increased. further preferably, the end face of the described first first end bending elbow pivoted arm 8 is outer the first convex outer convex arc surface 8a, the afterbody of described extruding slide block 6 is provided with concaved circular cambered surface 6a in the first of the indent that convex arc surface 8a phase outer with first is mated, the end face of the described first the 2nd end bending elbow pivoted arm 8 is outer the 2nd convex outer convex arc surface 8b, described 2nd first end bending elbow pivoted arm 13 is provided with concaved circular cambered surface 13a in the 2nd of the indent mated with described 2nd outer convex arc surface 8b phase the, the end face of the described 2nd the 2nd end bending elbow pivoted arm 13 is outer the 3rd convex outer convex arc surface 13b, described elbow seat 10 in the wrong is provided with concaved circular cambered surface 10a in the 3rd of the indent mated with described 3rd outer convex arc surface 13b phase.
One end of described extruding connecting rod 5 is between two fork arms of fork-shaped the 2nd end of the described first elbow pivoted arm 8 in the wrong, and elbow rotating shaft 14 in the wrong with the described 2nd is connected, the other end of described extruding connecting rod 5 is connected with the expansion link of described oil cylinder 1, and oil cylinder 1 is fixed on oil cylinder fixing base 2. Described oil cylinder 1 stretches out or driving of retracting, and drives Qu Zhou mechanism 12 to stretch or bend by extruding connecting rod 5, thus realizes described extruding slide block 6 and stretch out or retract.
As shown in Figure 10, described extruding control device 20 comprises controller 21, hydraulicvalve 22, upper stroke switch 3, travel switch driving lever 4 and pilot lamp 24, delay timer is had in described controller 21, the signal input terminus of controller 21 is connected with the injection signal output terminal of injection moulding machine, for receiving injection signal from injection moulding machine, and produce control signal; Travel switch driving lever 4 is arranged on extruding connecting rod 5, and upper stroke switch 3 is arranged on the side of extruding connecting rod 5, is connected with described controller 21, and pilot lamp 24 is connected with described controller 21; For controlling, described oil cylinder 1 stretches out or retracts described hydraulicvalve 22, the A group coil 22a and B group coil 22b of described hydraulicvalve 22 respectively signal output terminal with described controller 21 be connected.
Virgin state, controller 21 outputs control signals to the A group coil 22a of hydraulicvalve 22, and hydraulicvalve 22 retreats, and output oil pressure makes oil cylinder 1 inside contract bending drive extruding slide block 6 retraction of drive Qu Zhou mechanism and vacates die cavity, being even due to wall thickness herein or thicker, plastics are easy to fill in the past. Injection-moulding step is as follows:
Step 1, mould close mould;
Step 2, injection moulding machine enter glue;
Step 3, die cavity filling, meanwhile, controller 21 receives injection molding machine injection signal, controller start-up study;
Step 4, when the time delay time reach be time, controller 21 outputs control signals to the B group coil 22b of hydraulicvalve 22, and hydraulicvalve 22 advances, and output oil pressure advances to oil cylinder 1, and Shi Qu elbow mechanism 12 stretches and drives extruding slide block 6 to stretch out, and product is ironed; Meanwhile, travel switch driving lever 4 triggers described mould upper stroke switch 3, and described pilot lamp 24 opened by described controller 21, and pilot lamp 24 is bright can play suggesting effect.
Step 5, die die cavity pressurize cooling;
Step 6, mould die sinking, controller 21 outputs control signals to the A group coil 22a of hydraulicvalve 22, and hydraulicvalve 22 is reverse, and output oil pressure retreats to oil cylinder, and the bending drive extruding slide block 6 of Shi Qu elbow mechanism 12 retreats, and extruding slide block 6 is retracted;
Step 7, taking-up product.
Continue next circulation.
To sum up, the thin-wall product injection mold of the present invention has following useful effect:
(1) this thin-wall product injection mold by making squeezing device in mould on ultra-thin wall thickness position, in mould, squeezing device comprises extruding slide block 6, Qu Zhou mechanism 12, oil cylinder 1 and extruding control device 20, Qu Zhou mechanism 12 is power magnify 20 of oil cylinder 1 or more, thus overcomes huge injection pressure. When in die cavity, plastics are in molten state time, extruding slide block 6 starts compressional movement, and moulding product is ironed, thus realize the thickness of squeezed product in mould, this thin-wall product injection mold may be used for producing the plastic prod of below local thin wall 1.2mm, substitute and surmount the steam height light injection moulding production technique of high cost, injection moulding production efficiency 40% can be promoted, reduce piece-production cost about 60%, at the same time it is assured that product thickness is stable and administration measure.
(2) the extruding control device 20 of thin-wall product injection mold by adjusting time opening of compression and time length and the time of exiting, control tolerance range height with the linkage of injection moulding lathe.
In addition, (3) this thin-wall product injection mold also has that structure is simple, simple to operate, moulding process is simple, the advantage of die cost and injection moulding low production cost.
The above embodiment only have expressed several enforcement modes of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to patent scope of the present invention. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the inventive concept of the premise these all belong to protection scope of the present invention.
Claims (10)
1. a thin-wall product injection mold, comprise squeezing device in mavable module core (11) and mould, it is characterized in that, described mavable module core (11) is provided with sliding hole (11a), and the aperture in this cunning hole (11a) is positioned in the molding surface (11b) of mavable module core (11), in described mould, squeezing device comprises extruding slide block (6), Qu Zhou mechanism (12), oil cylinder (1) and extruding control device (20), described extruding slide block (6) is installed in described sliding hole (11a) scalablely, when extruding slide block (6) and retract, the end face (6b) of extruding slide block (6) head is retracted and is formed die cavity in described sliding hole (11a) with between the hole wall of cunning hole (11a), when extruding slide block (6) and stretch out, the end face (6b) of extruding slide block (6) head and molding surface (11b) flush of mavable module core (11), described oil cylinder (1) is connected with described extruding slide block (6) by Qu Zhou mechanism (12), described extruding control device (20) is for controlling the flexible motion of described oil cylinder (1), described oil cylinder (1) stretches out or retracts to drive described Qu Zhou mechanism (12) to stretch or bend, thus realizes described extruding slide block (6) and stretch out or retract.
2. thin-wall product injection mold according to claim 1, it is characterized in that, described Qu Zhou mechanism (12) comprises first and bends elbow pivoted arm (8), 2nd bends elbow pivoted arm (13) and elbow seat in the wrong (10), it is hinged with the afterbody of described extruding slide block (6) that described first first end bending elbow pivoted arm (8) bends elbow rotating shaft (9) by first, it is hinged with the first end of the 2nd elbow pivoted arm (13) in the wrong that first the 2nd end bending elbow pivoted arm (8) bends elbow rotating shaft (14) by the 2nd, it is hinged with elbow seat (10) in the wrong that 2nd the 2nd end bending elbow pivoted arm (13) bends elbow rotating shaft (15) by the 3rd, 2nd bends elbow rotating shaft (14) is connected with the expansion link of described oil cylinder (1).
3. thin-wall product injection mold according to claim 2, it is characterized in that, described first bend between first end and the afterbody of described extruding slide block (6) of elbow pivoted arm (8), described first bend elbow pivoted arm (8) the 2nd end elbow pivoted arm (13) in the wrong with the described 2nd first end between and adopt convex-concave cambered surface to coordinate between the 2nd end of the described 2nd elbow pivoted arm (13) in the wrong and described elbow seat (10) in the wrong, bear pressure by cambered surface when Shi Qu elbow mechanism (12) stretches.
4. thin-wall product injection mold according to claim 3, it is characterized in that, the end face of the described first first end bending elbow pivoted arm (8) is outer the first convex outer convex arc surface (8a), the afterbody of described extruding slide block (6) is provided with concaved circular cambered surface (6a) in the first of the indent that convex arc surface (8a) outer with first is mated mutually, the end face of the described first the 2nd end bending elbow pivoted arm (8) is outer the 2nd convex outer convex arc surface (8b), described 2nd first end bending elbow pivoted arm (13) is provided with concaved circular cambered surface (13a) in the 2nd of the indent mated mutually with described 2nd outer convex arc surface (8b) the, the end face of the described 2nd the 2nd end bending elbow pivoted arm (13) is outer the 3rd convex outer convex arc surface (13b), described elbow seat (10) in the wrong is provided with concaved circular cambered surface (10a) in the 3rd of the indent mated mutually with described 3rd outer convex arc surface (13b).
5. thin-wall product injection mold according to claim 4, it is characterized in that, the first end of the 2nd end and the described 2nd elbow pivoted arm (13) in the wrong that the afterbody, described first of described extruding slide block (6) bends elbow pivoted arm (8) is all in fork-shaped, described first first end bending elbow pivoted arm (8) is positioned between two fork arms of the fork-shaped afterbody of described extruding slide block (6), and the described first the 2nd end bending elbow pivoted arm (8) is positioned between two fork arms of fork-shaped first end that the described 2nd bends elbow pivoted arm (13).
6. thin-wall product injection mold according to claim 2, it is characterized in that, in described mould, squeezing device also comprises extruding connecting rod (5), one end of described extruding connecting rod (5) is bent elbow rotating shaft (14) with the described 2nd and is connected, and the other end of described extruding connecting rod (5) is connected with the expansion link of described oil cylinder (1).
7. thin-wall product injection mold according to claim 1, it is characterized in that, when extruding slide block (6) and retract, the spacing between the end face (6b) of described extruding slide block (6) head and the molding surface of described mavable module core (11) is 2.5mm～3.5mm.
8. thin-wall product injection mold according to claim 1, it is characterised in that, described sliding hole (11a) is T-shaped, and described extruding slide block (6) is the T-shaped that hole (11a) sliding with described T-shaped coordinates.
9. thin-wall product injection mold as claimed in any of claims 1 to 8, it is characterised in that, described extruding control device (20) comprising:
Controller (21), the signal input terminus of controller (21) is connected with the injection signal output terminal of injection moulding machine, for receiving injection signal from injection moulding machine, and produces control signal; With
Hydraulicvalve (22), for controlling, described oil cylinder (1) stretches out or retracts described hydraulicvalve (22), A group coil (22a) and B group coil (22b) of described hydraulicvalve (22) respectively signal output terminal with described controller (21) be connected;
When controller (21) receives injection signal, B group coil (22b) is output control signals to after time delay first setting-up time, described hydraulicvalve (22) controls described oil cylinder (1) and stretches out, outputing control signals to A group coil (22a) after the 2nd setting-up time, described hydraulicvalve (22) controls described oil cylinder (1) and retracts.
10. thin-wall product injection mold according to claim 9, it is characterized in that, described extruding control device (20) also comprises mould upper stroke switch (3), travel switch driving lever (4) and pilot lamp (24), described travel switch driving lever (4) is synchronized with the movement with the expansion link of described oil cylinder (1), upper stroke switch (3) is arranged on the side of travel switch driving lever (4), and be connected with described controller (21), pilot lamp (24) is connected with described controller (21); When described oil cylinder (1) stretches out, described travel switch driving lever (4) triggers described mould upper stroke switch (3), and described pilot lamp (24) opened by described controller (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179991.3A CN105666810A (en) | 2016-03-24 | 2016-03-24 | Injection mould for thin-walled product |
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| CN201610179991.3A CN105666810A (en) | 2016-03-24 | 2016-03-24 | Injection mould for thin-walled product |
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| US4184835A (en) * | 1978-09-28 | 1980-01-22 | General Electric Company | Mold apparatus |
| JPS6311808U (en) * | 1986-07-07 | 1988-01-26 | ||
| JPH07148795A (en) * | 1993-11-29 | 1995-06-13 | Canon Inc | Plastic part and molding thereof |
| JP2000318007A (en) * | 1999-05-13 | 2000-11-21 | Meihoo:Kk | Mold clamping pressure adjusting method and device |
| CN202462806U (en) * | 2012-02-26 | 2012-10-03 | 宁波思迈工业科技有限公司 | Thread core pulling device capable of automatically resetting initial thread point |
| CN205497995U (en) * | 2016-03-24 | 2016-08-24 | 珠海格力大金精密模具有限公司 | Thin wall product injection mold |
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| US2186030A (en) * | 1937-04-30 | 1940-01-09 | Lester Engineering Co | Toggle link |
| US4184835A (en) * | 1978-09-28 | 1980-01-22 | General Electric Company | Mold apparatus |
| JPS6311808U (en) * | 1986-07-07 | 1988-01-26 | ||
| JPH07148795A (en) * | 1993-11-29 | 1995-06-13 | Canon Inc | Plastic part and molding thereof |
| JP2000318007A (en) * | 1999-05-13 | 2000-11-21 | Meihoo:Kk | Mold clamping pressure adjusting method and device |
| CN202462806U (en) * | 2012-02-26 | 2012-10-03 | 宁波思迈工业科技有限公司 | Thread core pulling device capable of automatically resetting initial thread point |
| CN205497995U (en) * | 2016-03-24 | 2016-08-24 | 珠海格力大金精密模具有限公司 | Thin wall product injection mold |
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Application publication date: 20160615 |