CN111086169A - Exhaust device, exhaust control method and mold structure thereof - Google Patents
Exhaust device, exhaust control method and mold structure thereof Download PDFInfo
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- CN111086169A CN111086169A CN201911237628.2A CN201911237628A CN111086169A CN 111086169 A CN111086169 A CN 111086169A CN 201911237628 A CN201911237628 A CN 201911237628A CN 111086169 A CN111086169 A CN 111086169A
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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
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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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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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
- B29C45/34—Moulds having venting 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
- B29C45/76—Measuring, controlling or regulating
-
- 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
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
- B29C2945/76735—Mould cavity
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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 relates to the technical field of plastic molding, in particular to an exhaust device, an exhaust control method and a mold structure thereof, which are applied to the mold structure, wherein a cavity which can be communicated with the external environment is arranged in the mold structure, and the bottom of the cavity is provided with a temperature sensing point; the exhaust device comprises a controller, a temperature sensing mechanism connected with the input end of the controller and a mechanical slide block mechanism connected with the output end of the controller, wherein the temperature sensing mechanism is in signal connection with a temperature sensing point; the die structure is internally provided with a guide hole communicated with the die cavity, and the guide hole is internally provided with a sealing insert pin which can rise under the action of a mechanical slide block mechanism to seal the die cavity. According to the invention, the plastic product is injected by adopting the open type cavity, so that the gas can be exhausted rapidly in time, and the unqualified phenomena of gas trapping, scorching, insufficient welding, cracking in performance test and the like of the plastic product are effectively avoided; when the high-temperature fluid plastic flows to the temperature sensing point, the mechanical sliding mechanism is triggered to drive the sealing insert pin to ascend to close the cavity, and the smooth completion of the injection molding process of the plastic product is ensured.
Description
Technical Field
The invention relates to the technical field of plastic molding, in particular to an exhaust device, an exhaust control method and a mold structure thereof.
Background
In the injection molding process, plastic raw materials need to flow into a cavity through a runner, and gas in the cavity is usually exhausted by using a parting surface, a thimble, an insert needle, exhaust steel, an insert and the like, but the method is only suitable for injection molds with small space of the inner wall of the cavity and less gas storage in the cavity; when the wall thickness of an injection molding product is thick, the space of a cavity of the injection mold is large, the gas storage amount in the cavity is large, the whole cavity of the existing mold is in a closed state, the exhaust method cannot realize the effect of rapid exhaust, so that the problems of gas trapping, scorching, insufficient welding and the like of the plastic product are caused, the phenomenon of bursting is easily generated during performance test, and the surface appearance, the molding quality and the molding qualification rate of the plastic product are seriously influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an exhaust device, an exhaust control method and a mold structure thereof.
In order to solve the technical problems, the invention adopts the technical scheme that:
providing an exhaust device applied to a mold structure; a cavity which can be communicated with the external environment is arranged in the mold structure, and a temperature sensing point is arranged at the bottom of the cavity; the exhaust device comprises a controller, a temperature sensing mechanism connected with the input end of the controller and a mechanical slide block mechanism connected with the output end of the controller, wherein the temperature sensing mechanism is in signal connection with a temperature sensing point; the die structure is internally provided with a guide hole communicated with the die cavity, and the guide hole is internally provided with a sealing insert pin which can rise under the action of a mechanical sliding block mechanism to seal the die cavity.
According to the exhaust device, high-temperature fluid plastic flows in the cavity and exhausts gas in the cavity, when the high-temperature fluid plastic is about to be fully distributed and reaches a temperature sensing point, the temperature sensing mechanism conveys the detected temperature to the controller for analysis, if a signal received by the controller triggers a threshold value, the controller controls the mechanical slide block mechanism to move, and the sealing insert rises to the closed cavity in the guide hole under the action of the mechanical slide block mechanism. The invention adopts the open type cavity to inject the plastic product, can realize timely and rapid exhaust, and effectively avoids the phenomena of gas trapping, scorching, insufficient welding, cracking caused by influencing the performance test, and the like of the plastic product.
Further, the temperature sensing mechanism includes a fixed block, an infrared temperature sensor capable of emitting infrared rays and a temperature sensing via hole arranged inside the die structure, the fixed block is installed inside the die structure, the infrared temperature sensor is installed on the fixed block, and the infrared rays emitted by the infrared temperature sensor pass through the temperature sensing via hole to reach a temperature sensing point. When high-temperature fluid plastic flows to a temperature sensing point in the cavity, the infrared temperature sensor can acquire the temperature at the temperature sensing point and transmit a temperature signal to the controller, the controller analyzes whether the temperature is greater than a set trigger threshold value, and if so, the trigger condition of the mechanical slide block mechanism is met.
Further, machinery slider mechanism includes first actuating mechanism, locates the inside spout of mould structure and connects in the slider of first actuating mechanism output, the slider is connected in first actuating mechanism's output, the spout sets up with the slider cooperation, the slider is equipped with the inclined plane that drives the lift of sealed insert needle when moving. The first driving mechanism drives the sliding block to move in the sliding groove, and the sealing insert needle rises to the closed cavity in the guide hole due to the arrangement of the inclined surface of the sliding block during movement.
Further, first actuating mechanism is including the air supply, solenoid valve and the cylinder that connect in order, the solenoid valve is connected in the output of controller, the slider passes through the connector and connects in the output shaft of cylinder. When the signal obtained by the temperature sensing mechanism meets the triggering condition of the mechanical slide block mechanism, the controller controls the electromagnetic valve to be opened, the air source is communicated with the air cylinder, and the air cylinder can obtain pressure air from the air source to push out the output shaft.
Further, the cylinder is installed outside the mold structure through a fixing seat. The temperature sensing mechanism is installed with the die through the fixing block, the air cylinder is installed with the die through the fixing seat, the temperature sensing mechanism is simple and convenient to install, the mechanism is directly added on the basis of the existing injection die, the cost increase caused by replacement of die parts or re-opening of a new die is not needed, the production cost is effectively controlled, and better economic benefits can be obtained.
Furthermore, the slider has seted up T type groove along the inclined plane, the one end of sealing insert is equipped with the tip with T type groove complex. The end parts of the T-shaped groove and the sealing insert are matched, so that the relative motion between the sealing insert and the T-shaped groove is more stable.
Further, the periphery of the guide hole is provided with an insert, the insert is embedded in the interior of the mold structure and fixed above the sliding block, and the insert is externally connected with a dismounting rod. The arrangement of the disassembling rod is convenient for disassembling and maintaining the insert.
The invention also provides an exhaust control method, which comprises the following steps:
when the high-temperature fluid plastic flows to a temperature sensing point in the cavity, the infrared temperature sensor transmits a received signal to the controller, and the controller controls the electromagnetic valve to open and communicate the air source and the air cylinder;
the air cylinder pushes the sliding block to move under the action of air pressure, the end part of the sealing insert pin slides in the T-shaped groove, and meanwhile, the sealing insert pin moves upwards along the inclined plane to seal the cavity.
According to the exhaust control method, the infrared temperature sensor senses the position of high-temperature fluid plastic flowing in the cavity, when the high-temperature fluid plastic does not flow to a temperature sensing point, the cavity is in an open state, and gas in the cavity is continuously exhausted; when the high-temperature fluid plastic touches a temperature sensing point, the trigger cylinder pushes the slide block to move to drive the sealing insert pin to ascend to close the cavity. The exhaust control method of the invention can ensure that the gas in the cavity is effectively and quickly removed, and can also seal the cavity in time to ensure the smooth molding of the plastic product.
The invention also provides a mould structure which comprises a mould frame, a cavity, a glue injection system, a core-pulling system, an ejector pin system and the exhaust device, wherein the glue injection system, the core-pulling system and the ejector pin system are communicated with the cavity, and the temperature sensing mechanism, the mechanical slide block mechanism, the glue injection system, the core-pulling system and the ejector pin system are all arranged on the mould frame.
According to the mold structure, a glue injection system is used for injecting high-temperature molten high-temperature fluid plastic into a cavity, when the high-temperature fluid plastic touches a temperature sensing mechanism, a mechanical sliding block mechanism is controlled to work to drive a sealing insert pin to ascend to seal the cavity, the high-temperature fluid plastic is filled in the cavity and then cools a plastic product in the cavity, a mold parting surface of the mold is opened by an injection molding machine, core pulling is completed by a core pulling system, the injection molding machine starts a thimble system to eject the plastic product out of the mold cavity while core pulling is completed, and the whole process of injection molding, cavity exhaust, cooling, core pulling and ejection is completed. The temperature sensing mechanism and the mechanical slide block mechanism are directly added on the basis of the existing injection mold, so that the cost increase caused by replacing mold parts or newly opening a new mold is avoided, the cost is effectively controlled, and better economic benefit is obtained.
Furthermore, the core-pulling system comprises a supporting plate arranged on the die carrier, an oil cylinder fixedly arranged on the supporting plate and a die core connected to the output end of the oil cylinder, and the die cavity is formed between the die core and the die carrier; the core-pulling system comprises a second driving mechanism arranged at the bottom of the die carrier and a thimble connected to the output end of the second driving mechanism, and the end part of the thimble can extend to the inside of the die cavity, so that the injected plastic flows to cover the whole die cavity and a large amount of gas in the die cavity is discharged completely. In the core-pulling process, the oil cylinder drives the core to retreat to complete core-pulling; in the ejection process, the second driving mechanism drives the ejector pin to move forwards to eject the plastic product.
Compared with the prior art, the invention has the beneficial effects that:
according to the exhaust device and the exhaust control method, the open type cavity is adopted for injecting the plastic product, so that timely and rapid exhaust can be realized, and the phenomena of gas trapping, scorching, insufficient welding, cracking caused by influencing performance tests, and the like of the plastic product are effectively avoided; when the high-temperature fluid plastic flows to a temperature sensing point, a mechanical sliding mechanism is triggered to drive the sealing insert pin to ascend to close the cavity, so that the smooth completion of the injection molding process of the plastic product is ensured;
the mold structure of the invention can directly add the temperature sensing mechanism and the mechanical slide block mechanism on the basis of the existing injection mold, thereby avoiding the cost increase caused by replacing mold parts or newly opening a new mold, effectively controlling the cost and obtaining better economic benefit.
Drawings
FIG. 1 is a schematic view of the exhaust apparatus of the present invention;
FIG. 2 is a schematic structural diagram of a temperature sensing mechanism of an exhaust device;
FIG. 3 is a schematic structural view of a mechanical slider mechanism of the exhaust apparatus;
FIG. 4 is a schematic structural view of a mold structure with the cavity in an open state;
fig. 5 is a structural schematic view of a mold structure with the cavity closed.
In the drawings: 100-an exhaust device; 110-a temperature sensing mechanism; 111-fixing blocks; 112-infrared temperature sensor; 113-temperature sensing vias; 120-mechanical slider mechanism; 121-a chute; 122-a slider; 123-inclined plane; 124-electromagnetic valve; 125-cylinder; 126-a fixed seat; 127-T type groove; 128-a connector; 200-a mold structure; 210-a mold cavity; 220-temperature sensing point; 230-a pilot hole; 231-an insert; 232-a dismounting rod; 240-sealing insert pins; 250-a mould frame; 260-glue injection system; 270-core pulling system; 271-a support plate; 272-oil cylinder; 273-core; 280-thimble system; 281-a second drive mechanism; 282-thimble.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example one
Referring to fig. 1 to 3, which illustrate an embodiment of the exhaust apparatus 100 of the present invention, the exhaust apparatus 100 of the present embodiment is applied to a mold structure 200; a cavity 210 which can be communicated with the external environment is arranged in the mold structure 200, and the bottom of the cavity 210 is provided with a temperature sensing point 220; the exhaust device 100 comprises a controller, a temperature sensing mechanism 110 connected to the input end of the controller, and a mechanical slider mechanism 120 connected to the output end of the controller, wherein the temperature sensing mechanism 110 is in signal connection with a temperature sensing point 220; the mold structure 200 is provided with a guide hole 230 communicating with the cavity 210, and the guide hole 230 is provided with a seal insert 240 capable of being lifted by the mechanical slider mechanism 120 to close the cavity 210.
In the implementation of this embodiment, the high-temperature plastic fluid flows in the cavity 210 and is discharged out of the gas in the cavity 210, when the high-temperature plastic fluid is about to be spread and reaches the temperature sensing point 220, the temperature sensing mechanism 110 transmits the detected temperature to the controller for analysis, and if the signal received by the controller triggers the threshold, the controller controls the mechanical slider mechanism 120 to move, and the sealing insert 231 rises in the guide hole 230 to close the cavity 210 under the action of the mechanical slider mechanism 120.
As shown in fig. 2, the temperature sensing mechanism 110 includes a fixing block 111, an infrared temperature sensor 112 capable of emitting infrared rays, and a temperature sensing through hole 113 formed in the mold structure 200, the fixing block 111 is installed in the mold structure 200, the infrared temperature sensor 112 is installed in the fixing block 111, and the infrared rays emitted by the infrared temperature sensor 112 pass through the temperature sensing through hole 113 to reach a temperature sensing point 220; when the high-temperature fluid plastic flows to the temperature sensing point 220 in the cavity 210, the infrared temperature sensor 112 can acquire the temperature at the temperature sensing point 220, transmit the temperature signal to the controller, and analyze whether the temperature is greater than the set trigger threshold value, if so, the trigger condition of the mechanical slider mechanism 120 is satisfied. The guide hole 230 in this embodiment is disposed to communicate with the temperature sensing through hole 113 for facilitating rapid discharge of the gas in the cavity 210, but the present invention is not limited thereto.
As shown in fig. 3, the mechanical sliding block mechanism 120 includes a first driving mechanism, a sliding groove 121 disposed inside the mold structure 200, and a sliding block 122 connected to an output end of the first driving mechanism, the sliding block 122 is connected to the output end of the first driving mechanism, the sliding groove 121 is disposed in cooperation with the sliding block 122, and the sliding block 122 is provided with an inclined surface 123 for driving the sealing insert pin 240 to move up and down; the first driving mechanism drives the sliding block 122 to move in the sliding slot 121, and simultaneously, the sealing insert 240 ascends to the closed cavity 210 in the guide hole 230 due to the inclined surface 123. The first driving mechanism comprises an air source, an electromagnetic valve 124 and an air cylinder 125 which are connected in sequence, the electromagnetic valve 124 is connected to the output end of the controller, and the slider 122 is connected to the output shaft of the air cylinder 125 through a connector 128; when the signal obtained by the temperature sensing mechanism 110 meets the triggering condition of the mechanical slider mechanism 120, the controller controls the electromagnetic valve 124 to open, the air source is communicated with the air cylinder 125, and the air cylinder 125 can obtain pressure air from the air source to push out the output shaft. Temperature sensing mechanism 110 passes through fixed block 111 and die holding in this embodiment, and cylinder 125 passes through fixing base 126 and die holding, and the simple installation directly increases above-mentioned mechanism on current injection mold's basis, need not to change mould spare part or set up new mould again and the cost-push that leads to, effective control manufacturing cost can obtain better economic benefits. In order to increase the stability of the relative movement between the sealing insert 231 and the slider 122, the slider 122 of the embodiment is provided with a T-shaped groove 127 along the inclined surface 123, and one end of the sealing insert 231 is provided with an end portion matched with the T-shaped groove 127; in order to facilitate the mounting and dismounting of the mechanical slider 122 structure, in this embodiment, an insert 231 is disposed on the periphery of the guide hole 230, the insert 231 is embedded in the mold structure 200 and fixed above the slider 122, and a dismounting rod 232 is connected to the outside of the insert 231.
Example two
The present embodiment is an embodiment of an exhaust control method of an exhaust apparatus 100 according to the first embodiment, and includes the steps of:
when the high-temperature fluid plastic flows to a temperature sensing point 220 in the cavity 210, the infrared temperature sensor 112 transmits the received signal to the controller, and the controller controls the electromagnetic valve 124 to open, so that the air source is communicated with the air cylinder 125;
the air cylinder 125 is pushed by the air pressure to move the slider 122, and the end of the seal insert 240 slides in the T-shaped groove 127 and moves upward along the inclined surface 123 to close the cavity 210.
Through the steps, the gas in the cavity 210 can be effectively and quickly removed, and the cavity 210 can be closed in time to ensure the smooth molding of the plastic product.
EXAMPLE III
As shown in fig. 4 to 5, the exhaust structure of the first embodiment is applied to the mold structure 200, the mold structure 200 includes a mold frame 250, a cavity 210, a glue injection system 260 communicated with the cavity 210, a core-pulling system 270, an ejector pin system 280, and the exhaust device 100, and the temperature sensing mechanism 110, the mechanical slider mechanism 120, the glue injection system 260, the core-pulling system 270, and the ejector pin system 280 are all mounted on the mold frame 250.
In the implementation of the embodiment, a glue injection system 260 is used for injecting high-temperature molten high-temperature fluid plastic into the cavity 210, when the high-temperature fluid plastic touches the temperature sensing mechanism 110, the mechanical slider mechanism 120 is controlled to work to drive the sealing insert needle 240 to ascend to seal the cavity 210, the plastic product in the cavity 210 is cooled after the cavity 210 is filled with the high-temperature fluid plastic, the injection molding machine opens the parting surface of the mold, the core pulling system 270 completes core pulling, the injection molding machine starts the ejector pin system 280 to eject the plastic product out of the mold cavity 210 while completing core pulling, and the whole process of injection molding, cavity exhaust, cooling, core pulling and ejection is completed.
As shown in fig. 4 and 5, the core-pulling system 270 includes a supporting plate 271 installed on the mold frame 250, an oil cylinder 272 fixedly installed on the supporting plate 271, and a core 273 connected to an output end of the oil cylinder 272, and the cavity 210 is formed between the core 273 and the mold frame 250; the core-pulling system 270 includes a second driving mechanism 281 installed at the bottom of the mold frame 250, and a thimble 282 connected to an output end of the second driving mechanism 281, wherein an end of the thimble 282 is extendable into the cavity 210, so that the injected plastic flows to fill the entire cavity 210 and a large amount of gas in the cavity 210 is exhausted. In the core-pulling process, the oil cylinder 272 drives the core 273 to retreat to complete core-pulling; during the ejection process, the second driving mechanism 281 drives the ejector pin 282 to move forward to eject the plastic product.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An exhaust apparatus (100) for use with a mold structure (200); the mold is characterized in that a cavity (210) which can be communicated with the external environment is arranged in the mold structure (200), and a temperature sensing point (220) is arranged at the bottom of the cavity (210); the exhaust device (100) comprises a controller, a temperature sensing mechanism (110) connected to the input end of the controller and a mechanical slider mechanism (120) connected to the output end of the controller, wherein the temperature sensing mechanism (110) is in signal connection with a temperature sensing point (220); the die structure (200) is internally provided with a guide hole (230) communicated with the die cavity (210), and the guide hole (230) is internally provided with a sealing insert pin (240) which can be lifted by the action of a mechanical sliding block mechanism (120) to seal the die cavity (210).
2. The exhaust apparatus (100) according to claim 1, wherein the temperature sensing mechanism (110) comprises a fixing block (111), an infrared temperature sensor (112) capable of emitting infrared rays, and a temperature sensing through hole (113) formed in the mold structure (200), the fixing block (111) is mounted inside the mold structure (200), the infrared temperature sensor (112) is mounted on the fixing block (111), and the infrared rays emitted from the infrared temperature sensor (112) pass through the temperature sensing through hole (113) to reach the temperature sensing point (220).
3. The exhaust device (100) according to claim 2, wherein the mechanical slider mechanism (120) comprises a first driving mechanism, a sliding groove (121) disposed inside the mold structure (200), and a slider (122) connected to an output end of the first driving mechanism, the slider (122) is connected to the output end of the first driving mechanism, the sliding groove (121) and the slider (122) are cooperatively disposed, and the slider (122) is provided with a slope (123) for driving the seal insert pin (240) to move up and down.
4. The exhaust apparatus (100) according to claim 3, wherein the first driving mechanism comprises a gas source, a solenoid valve (124) and a cylinder (125) connected in sequence, the solenoid valve (124) is connected to an output end of the controller, and the slider (122) is connected to an output shaft of the cylinder (125) through a connector.
5. The exhaust apparatus (100) according to claim 4, wherein the cylinder (125) is mounted to the exterior of the mold structure (200) by a mount (126).
6. The exhaust device (100) according to claim 3, wherein the slider (122) is provided with a T-shaped groove (127) along the inclined surface (123), and one end of the sealing insert (231) is provided with an end portion matched with the T-shaped groove (127).
7. The exhaust apparatus (100) according to any one of claims 3 to 6, wherein an insert (231) is disposed on the periphery of the guide hole (230), the insert (231) is embedded in the mold structure (200) and fixed above the slider (122), and a removal rod (232) is connected to the outside of the insert (231).
8. An exhaust gas control method characterized by comprising the steps of:
when high-temperature fluid plastic flows to a temperature sensing point (220) in a cavity (210), the infrared temperature sensor (112) transmits a received signal to the controller to analyze whether a threshold value is triggered, if so, the controller controls the electromagnetic valve (124) to be opened to communicate the air source and the air cylinder (125);
the air cylinder (125) pushes the sliding block (122) to move under the pressure of air pressure, the end part of the sealing insert pin (240) slides in the T-shaped groove (127), and meanwhile, the sealing insert pin moves upwards along the inclined surface (123) to close the cavity (210).
9. A mold structure (200) is characterized by comprising a mold frame (250), a cavity (210), a glue injection system (260) communicated with the cavity (210), a core-pulling system (270), an ejector pin system (280) and the exhaust device (100) according to any one of claims 1 to 7, wherein the temperature sensing mechanism (110), the mechanical slider mechanism (120), the glue injection system (260), the core-pulling system (270) and the ejector pin system (280) are all installed on the mold frame (250).
10. The mold structure (200) according to claim 9, wherein the core pulling system (270) comprises a supporting plate (271) mounted on the mold frame (250), an oil cylinder (272) fixedly mounted on the supporting plate (271), and a core (273) connected to an output end of the oil cylinder (272), and the cavity (210) is formed between the core (273) and the mold frame (250); the core-pulling system (270) comprises a second driving mechanism (281) arranged at the bottom of the mold frame (250) and an ejector pin (282) connected to the output end of the second driving mechanism (281), and the end part of the ejector pin (282) can extend to the inside of the mold cavity (210).
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| CN201911237628.2A CN111086169A (en) | 2019-12-05 | 2019-12-05 | Exhaust device, exhaust control method and mold structure thereof |
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| CN201911237628.2A CN111086169A (en) | 2019-12-05 | 2019-12-05 | Exhaust device, exhaust control method and mold structure thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710474A (en) * | 2020-06-22 | 2020-09-25 | 北京朝阳隆华电线电缆有限公司 | Cable extrusion molding production line and process |
| CN114083765A (en) * | 2021-11-09 | 2022-02-25 | 阿迪汉模塑(无锡)有限公司 | Large thin-wall injection mold with complex-shell core-pulling hot runner and injection molding process thereof |
| CN115157494A (en) * | 2022-05-31 | 2022-10-11 | 合肥延锋云鹤汽车座椅有限公司 | Non-disassembly deformation die and automobile seat |
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| CN111710474A (en) * | 2020-06-22 | 2020-09-25 | 北京朝阳隆华电线电缆有限公司 | Cable extrusion molding production line and process |
| CN111710474B (en) * | 2020-06-22 | 2021-10-22 | 北京朝阳隆华电线电缆有限公司 | Cable extrusion molding production line and process |
| CN114083765A (en) * | 2021-11-09 | 2022-02-25 | 阿迪汉模塑(无锡)有限公司 | Large thin-wall injection mold with complex-shell core-pulling hot runner and injection molding process thereof |
| CN114083765B (en) * | 2021-11-09 | 2023-11-17 | 阿迪汉模塑(无锡)有限公司 | Large thin-wall injection mold with complex core-pulling hot runner of shell and injection molding process of large thin-wall injection mold |
| CN115157494A (en) * | 2022-05-31 | 2022-10-11 | 合肥延锋云鹤汽车座椅有限公司 | Non-disassembly deformation die and automobile seat |
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