CN112172062B - Quick-cooling type injection mold - Google Patents
Quick-cooling type injection mold Download PDFInfo
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- CN112172062B CN112172062B CN202011155864.2A CN202011155864A CN112172062B CN 112172062 B CN112172062 B CN 112172062B CN 202011155864 A CN202011155864 A CN 202011155864A CN 112172062 B CN112172062 B CN 112172062B
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- sliding plug
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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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a quick-cooling type injection mold which comprises a mold body, wherein a sliding plug cavity is formed in the lower end of the mold body, a magnetic sliding plug is connected to the inner wall of the sliding plug cavity in a sealing and sliding mode, the side wall of the magnetic sliding plug is elastically connected with the inner wall of the sliding plug cavity through a telescopic spring, a sliding plate is connected to the inner wall, away from the magnetic sliding plug, of the sliding plug cavity in a sealing and sliding mode, the side wall of the sliding plate is elastically connected with the inner wall of the sliding plug cavity through a reset spring, and cooling liquid is arranged in a sealing space formed among the magnetic sliding plug, the sliding plate and the sliding plug cavity. According to the invention, the electromagnetic plate is electrified to generate magnetism, so that the magnetic sliding plug slides under the action of the magnetic repulsion force of the electromagnetic plate, the magnetic sliding plug slides to push the sliding plate to slide, meanwhile, the magnetic sliding plug slides to drive the magnetic plate to slide, when the magnetic plate slides to the position that the circular hole is aligned with the liquid outlet, cooling liquid in the sliding plug cavity enters the cavity and enters the spiral condensation cavity through the liquid inlet pipe, a plastic product in the mold body is cooled, and the cooling effect is good.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a quick-cooling type injection mold.
Background
The injection molding of the mold is to inject the molten plastic with higher temperature into the mold with lower temperature through high pressure, and obtain the required product through cooling and solidification.
At present, the cooling of the injection mold is mostly in a water cooling mode, but when cold water flows in the injection mold, the cold water is required to be pumped into the injection mold by a water pump to continuously flow, so that not only is the water resource greatly wasted, but also the power consumption is caused, and the cooling effect of the water cooling to the injection mold is general, especially, the cooling effect of the water cooling to the injection mold is slow in the weather with higher temperature, and the production efficiency of plastic products is directly influenced.
Based on the above, the invention provides a quick-cooling type injection mold.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a quick-cooling injection mold.
In order to achieve the purpose, the invention adopts the following technical scheme:
A quick-cooling type injection mold comprises a mold body, wherein a sliding plug cavity is formed in the lower end of the mold body, a magnetic sliding plug is connected to the inner wall of the sliding plug cavity in a sealing and sliding manner, the side wall of the magnetic sliding plug is elastically connected with the inner wall of the sliding plug cavity through a telescopic spring, a sliding plate is connected to the inner wall, far away from the magnetic sliding plug, of the sliding plug cavity in a sealing and sliding manner, the side wall of the sliding plate is elastically connected with the inner wall of the sliding plug cavity through a return spring, cooling liquid is filled in a sealing space formed among the magnetic sliding plug, the sliding plug cavity is embedded with an electromagnetic plate close to the inner wall of the magnetic sliding plug, a cavity is formed in the bottom of the mold body, the top of the sliding plug cavity is connected with the inner wall of the cavity through a liquid outlet, a spiral condensation cavity is formed in the inner wall of the mold body, the inner wall of the cavity is connected with the inner wall of the spiral condensation cavity through a liquid inlet pipe, and a strip-shaped cavity is formed in the lower end of the mold body, the liquid outlet penetrates through the inner wall of the bar-shaped cavity, the inner wall of the bar-shaped cavity is connected with a magnetic plate which is attracted with the magnetic sliding plug in a sealing and sliding mode, the side wall of the magnetic plate is provided with a round hole matched with the liquid outlet, and a collecting mechanism which is used for collecting cooling liquid entering the spiral condensation cavity is installed in the sliding plug cavity.
Preferably, the collection mechanism comprises a liquid suction bag fixedly connected to the inner wall of the sliding plug cavity close to the magnetic sliding plug, the liquid suction bag is of an annular structure, the inner wall, far away from the liquid inlet pipe, of the spiral condensation cavity is connected with the inner wall of the liquid suction bag through a one-way liquid outlet pipe, the inner wall of the liquid suction bag is fixedly connected with the side wall of the magnetic sliding plug through a one-way liquid outlet pipe, a cooling cavity is formed in the die body, and the one-way liquid outlet pipe penetrates through the cooling cavity.
Preferably, the cooling cavity is internally provided with liquid nitrogen, the inner wall of the cooling cavity is provided with an air outlet, and a pressure release valve is arranged in the air outlet.
Preferably, the electromagnetic plate is connected with external pulsating direct current in a coupling manner through a lead, and the electromagnetic plate and the magnetic sliding plug repel each other.
Preferably, a conductor plate is embedded in the bottom of the die body, one end of the conductor plate penetrates through the side wall of the die body and extends into the cooling cavity, the conductor plate is coupled with an external power supply, and the upper end and the lower end of the conductor plate are made of two different metal materials.
The invention has the following beneficial effects:
1. by arranging the electromagnetic plate, the magnetic sliding plug, the sliding plate and the magnetic plate, after plastic is molded in the die body, electricity is conducted to the electromagnetic plate to generate magnetism, and then the magnetic sliding plug slides under the action of magnetic repulsion force of the electromagnetic plate;
2. By arranging the liquid suction bag, the cooling cavity, the one-way liquid outlet pipe and the one-way liquid outlet pipe, the cooling liquid flows in the thread condensation cavity and then enters the liquid suction bag through the one-way liquid outlet pipe, the heat in the cooling liquid is absorbed under the action of the cooling cavity, as the current introduced into the electromagnetic plate is periodically changed, and then when the current flowing through the electromagnetic plate is small, the magnetic repulsion force between the electromagnetic plate and the magnetic sliding plug is not enough to overcome the tension force of the expansion spring, so that the magnetic sliding plug slides towards the direction close to the electromagnetic plate, the liquid suction bag is extruded, the cooling liquid in the liquid suction bag enters the sliding plug cavity, the cooling liquid in the sliding plug cavity is supplemented, and after the current flowing through the electromagnetic plate is increased, the electromagnetic plate pushes the magnetic sliding plug to slide again, the cooling liquid is extruded, and the process is repeated, so that the cooling liquid continuously flows in the spiral condensation cavity in a circulating manner, the cooling in the die body is accelerated;
3. the conductor plate is made of two metal materials with different materials, so that the conductor plate generates a Peltier effect in a thermoelectric phenomenon after being electrified, namely, in a loop formed by connecting current through the two different metal materials, heat can be absorbed at one end, and heat is released at the other end.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1 mould body, 2 sliding plug cavities, 3 extension springs, 4 magnetic sliding plugs, 5 return springs, 6 sliding plates, 7 electromagnetic plates, 8 cavities, 9 liquid outlets, 10 spiral condensation cavities, 11 liquid inlet pipes, 12 strip-shaped cavities, 13 magnetic plates, 14 round holes, 15 liquid suction bags, 16 cooling cavities, 17 one-way liquid outlet pipes, 18 one-way liquid discharge pipes, 19 air outlet holes and 20 conductor plates.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example one
Referring to fig. 1-2, a quick-cooling injection mold comprises a mold body 1, wherein a sliding plug cavity 2 is formed at the lower end of the mold body 1, a magnetic sliding plug 4 is connected to the inner wall of the sliding plug cavity 2 in a sealing and sliding manner, the side wall of the magnetic sliding plug 4 is elastically connected with the inner wall of the sliding plug cavity 2 through a telescopic spring 3, a sliding plate 6 is connected to the inner wall of the sliding plug cavity 2 far away from the magnetic sliding plug 4 in a sealing and sliding manner, the side wall of the sliding plate 6 is elastically connected with the inner wall of the sliding plug cavity 2 through a return spring 5, and cooling liquid is filled in a sealing space formed among the magnetic sliding plug 4, the sliding plate 6 and the sliding plug cavity 2;
An electromagnetic plate 7 is embedded in the inner wall of the sliding plug cavity 2 close to the magnetic sliding plug 4, the electromagnetic plate 7 is in coupling connection with external pulsating direct current through a lead, the electromagnetic plate 7 and the magnetic sliding plug 4 repel each other, further, the pulse mass direct current enables the passing current in the electromagnetic plate 7 to be periodically changed, the magnetism of the electromagnetic plate 7 is in direct proportion to the passing current, when the passing current in the electromagnetic plate 7 is larger, the magnetic repulsion force of the electromagnetic plate 7 to the magnetic sliding plug 4 overcomes the elasticity of the telescopic spring 3, and when the passing current in the electromagnetic plate 7 is smaller, the magnetic repulsion force of the electromagnetic plate 7 to the magnetic sliding plug 4 is not enough to overcome the elasticity of the telescopic spring 3;
the bottom of the die body 1 is provided with a cavity 8, the top of the sliding plug cavity 2 is connected with the inner wall of the cavity 8 through a liquid outlet 9, the inner wall of the die body 1 is provided with a spiral condensation cavity 10, the spiral condensation cavity 10 is spirally arranged to increase the contact area of cooling liquid and the inner wall of the die body 1 and prolong the flowing time of the cooling liquid on the inner wall of the die body 1, the cooling of the die body 1 is accelerated, the inner wall of the cavity 8 is connected with the inner wall of the spiral condensation cavity 10 through a liquid inlet pipe 11, the lower end of the die body 1 is provided with a strip-shaped cavity 12, the liquid outlet 9 penetrates through the inner wall of the strip-shaped cavity 12, the inner wall of the strip-shaped cavity 12 is hermetically and slidably connected with a magnetic plate 13 attracted with the magnetic sliding plug 4, it needs to say that the inner wall of the strip-shaped cavity 12 is provided with a through hole for balancing the pressure change in the strip-shaped cavity 12 when the magnetic plate 13 slides, the side wall of the magnetic plate 13 is provided with a round hole 14 matched with the liquid outlet 9, and a collecting mechanism for collecting the cooling liquid entering the spiral condensation cavity 10 is arranged in the sliding plug cavity 2.
The collecting mechanism comprises a liquid suction bag 15 fixedly connected to the inner wall, close to the magnetic sliding plug 4, of the sliding plug cavity 2, the liquid suction bag 15 is of an annular structure, the inner wall, far away from the liquid inlet pipe 11, of the spiral condensation cavity 10 is connected with the inner wall of the liquid suction bag 15 through a one-way liquid outlet pipe 17, the inner wall of the liquid suction bag 15 is fixedly connected with the side wall of the magnetic sliding plug 4 through a one-way liquid outlet pipe 18, it needs to be stated that the one-way liquid outlet pipe 17 only allows cooling liquid to enter the liquid suction bag 15 from the spiral condensation cavity 10, the one-way liquid outlet pipe 18 only allows the cooling liquid to enter the sliding plug cavity 2 from the liquid suction bag 15, a cooling cavity 16 is formed in the die body 1, and the one-way liquid outlet pipe 17 penetrates through the cooling cavity 16 to be arranged.
Liquid nitrogen is arranged in the cooling cavity 16, an air outlet 19 is formed in the inner wall of the cooling cavity 16, and a pressure release valve is arranged in the air outlet 19.
In the embodiment, after the plastic in the mold body 1 is molded, pulsed direct current is applied to the electromagnetic plate 7, so that the magnitude of current flowing through the electromagnetic plate 7 changes periodically, when the current is applied to the electromagnetic plate 7 is large, the magnetic repulsive force of the electromagnetic plate 7 to the magnetic sliding plug 4 overcomes the elastic force of the expansion spring 3, so as to push the magnetic sliding plug 4 to slide, because the sliding plug cavity 2 is a closed space, the magnetic sliding plug 4 slides to push the sliding plate 6 to slide, so that the sliding plate 6 extrudes the return spring 5, meanwhile, the magnetic sliding plug 4 slides to drive the magnetic plate 13 attracted thereto to slide, when the magnetic plate 13 slides to make the circular hole 14 face the liquid outlet 9, the cooling liquid in the sliding plug cavity 2 enters the cavity 8 through the liquid outlet 9, so that the cooling liquid is fully spread at the lower end of the mold body 1, and at this time, the sliding plate 6 slides towards the direction close to the magnetic sliding plug 4 under the elastic force of the return spring 5, extruding the cooling liquid in the sliding plug cavity 2 into the cavity 8, and then performing spiral condensation in the cavity 10 through the liquid inlet pipe 11 to cool the interior of the die body 1;
After flowing in the spiral condensation cavity 10, the cooling liquid enters the liquid absorption bag 15 through the one-way liquid outlet pipe 17, so that the liquid absorption bag 15 extends, when the one-way liquid outlet pipe 17 flows through the inner wall of the cooling cavity 16, the cooling cavity 16 absorbs heat in the cooling liquid at the moment, so that the cooling liquid keeps cooling, when current is introduced into the electromagnetic plate 7, magnetic repulsion force of the electromagnetic plate 7 on the magnetic sliding plug 4 is insufficient to overcome the elastic force of the expansion spring 3, the expansion spring 3 drives the magnetic sliding plug 4 to slide towards the direction close to the electromagnetic plate 7, so that the liquid absorption bag 15 is extruded, so that the cooling liquid in the liquid absorption bag 15 enters the sliding plug cavity 2 through the one-way liquid outlet pipe 18, the cooling liquid in the sliding plug cavity 2 is supplemented, after the current flowing on the electromagnetic plate 7 is increased, the electromagnetic plate 7 pushes the magnetic sliding plug 4 to slide again, so that the cooling liquid is extruded again and enters the spiral condensation cavity 10, the above steps are repeated, so that the cooling liquid continuously circulates and flows in the cavity 8 and the spiral condensation cavity 10, and the cooling in the die body 1 is accelerated.
Example two
Referring to fig. 3, different from the first embodiment, a conductor plate 20 is embedded in the bottom of the mold body 1, one end of the conductor plate 20 penetrates through the sidewall of the mold body 1 and extends into the cooling cavity 16, the conductor plate 20 is coupled with an external power supply, and the upper end and the lower end of the conductor plate 20 are made of two different metal materials, so that after current is applied to the conductor plate 20, the peltier effect in the thermoelectric phenomenon occurs on the conductor plate 20, that is, the upper end of the conductor plate 20 absorbs heat, and the lower end of the conductor plate 20 releases heat.
In this embodiment, behind the plastic molding in the mould body 1, to letting in the electric current in the conductor board 20, because the conductor board 20 is made by the different metal material of two kinds of materials, promptly after the circular telegram to the conductor board 20, make it take place the peltier effect among the thermoelectric phenomenon for conductor board 20 upper end heat absorption, conductor board 20 lower extreme is exothermic, and then conductor board 20 can absorb the heat in the mould body 1, further accelerates the cooling in the mould body 1, and then accelerates plastic products's production efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. The quick-cooling injection mold comprises a mold body (1) and is characterized in that a sliding plug cavity (2) is formed in the lower end of the mold body (1), a magnetic sliding plug (4) is connected to the inner wall of the sliding plug cavity (2) in a sealing and sliding mode, the side wall of the magnetic sliding plug (4) is elastically connected with the inner wall of the sliding plug cavity (2) through an expansion spring (3), a sliding plate (6) is connected to the inner wall of the sliding plug cavity (2) away from the magnetic sliding plug (4) in a sealing and sliding mode, the side wall of the sliding plate (6) is elastically connected with the inner wall of the sliding plug cavity (2) through a return spring (5), cooling liquid is arranged in a sealing space formed among the magnetic sliding plug (4), the sliding plate (6) and the sliding plug cavity (2), an electromagnetic plate (7) is embedded in the inner wall, close to the magnetic sliding plug (4), of the sliding plug cavity (2), and a cavity (8) is formed in the bottom of the mold body (1), the top passes through liquid outlet (9) and cavity (8) inner wall connection in sliding plug chamber (2), spiral condensation chamber (10) have been seted up to mould body (1) inner wall, cavity (8) inner wall passes through feed liquor pipe (11) and spiral condensation chamber (10) inner wall connection, strip chamber (12) have been seted up to mould body (1) lower extreme, liquid outlet (9) run through strip chamber (12) inner wall setting, strip chamber (12) inner wall sealing sliding connection has magnetic sheet (13) of inhaling mutually with magnetism sliding plug (4), magnetic sheet (13) lateral wall seted up with liquid outlet (9) complex round hole (14), install in sliding plug chamber (2) and carry out the collection mechanism of collecting to the coolant liquid that gets into in spiral condensation chamber (10).
2. A quick cooling type injection mold according to claim 1, characterized in that the collection mechanism includes a liquid suction bag (15) fixedly connected to the inner wall of the sliding plug cavity (2) near the magnetic sliding plug (4), the liquid suction bag (15) is of an annular structure, the inner wall of the spiral condensation cavity (10) far away from the liquid inlet pipe (11) is connected with the inner wall of the liquid suction bag (15) through a one-way liquid outlet pipe (17), the inner wall of the liquid suction bag (15) is fixedly connected with the side wall of the magnetic sliding plug (4) through a one-way liquid outlet pipe (18), a cooling cavity (16) is formed in the mold body (1), and the one-way liquid outlet pipe (17) penetrates through the cooling cavity (16) and is arranged therein.
3. A quick-cooling injection mold according to claim 2, characterized in that liquid nitrogen is provided in the cooling cavity (16), an air outlet (19) is provided in the inner wall of the cooling cavity (16), and a pressure release valve is provided in the air outlet (19).
4. A rapid cooling type injection mold according to claim 1, characterized in that the electromagnetic plate (7) is coupled with external pulsating direct current by a lead wire, and the electromagnetic plate (7) is repelled from the magnetic sliding plug (4).
5. A rapid cooling type injection mold according to claim 2, characterized in that a conductor plate (20) is embedded in the bottom of the mold body (1), one end of the conductor plate (20) extends through the sidewall of the mold body (1) and into the cooling cavity (16), the conductor plate (20) is connected by coupling with an external power supply, and the upper end and the lower end of the conductor plate (20) are made of two different metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155864.2A CN112172062B (en) | 2020-10-26 | 2020-10-26 | Quick-cooling type injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155864.2A CN112172062B (en) | 2020-10-26 | 2020-10-26 | Quick-cooling type injection mold |
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| CN112172062A CN112172062A (en) | 2021-01-05 |
| CN112172062B true CN112172062B (en) | 2022-06-28 |
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| CN202011155864.2A Active CN112172062B (en) | 2020-10-26 | 2020-10-26 | Quick-cooling type injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113858563B (en) * | 2021-08-16 | 2024-02-02 | 东莞市震宇模具塑胶实业有限公司 | Plastic mold capable of being cooled uniformly |
| CN114225273B (en) * | 2021-12-10 | 2022-11-22 | 深圳市金诚安全检测有限公司 | Fire-fighting patrol inspection fire-extinguishing equipment |
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