CN117227079A - Injection molding device for light guide strip of automobile atmosphere lamp - Google Patents
Injection molding device for light guide strip of automobile atmosphere lamp Download PDFInfo
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- CN117227079A CN117227079A CN202311336613.8A CN202311336613A CN117227079A CN 117227079 A CN117227079 A CN 117227079A CN 202311336613 A CN202311336613 A CN 202311336613A CN 117227079 A CN117227079 A CN 117227079A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
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- 238000004064 recycling Methods 0.000 claims 1
- 239000012768 molten material Substances 0.000 abstract description 58
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
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- 239000002994 raw material Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application relates to the field of injection molds, in particular to an injection molding device for an automobile atmosphere lamp light guide strip, which comprises a chassis, a fixed cylinder, a rotary cylinder, a fluted disc and a vacuum pump; one end of the fixed cylinder is arranged on the chassis, the axis of the fixed cylinder horizontally extends, the rotary cylinder is coaxial with the fixed cylinder, the rotary cylinder is rotationally connected with the fixed cylinder around the axis of the rotary cylinder, and the rotary cylinder can slide along the axis direction of the fixed cylinder relative to the fixed cylinder; the fluted disc is rotatably arranged on one end face of the rotary drum far away from the fixed drum, the fixed drum and the rotary drum are internally provided with a first cavity with variable volume, and materials can flow in the first cavity after being melted; the vacuum pump is communicated with the first cavity and is used for pumping gas in the first cavity, so that the pressure inside and outside the bubbles is changed, the bubbles are easier to break, and the gas in the molten material is promoted to be completely discharged. Rotation of the drum imparts a shear force to the molten material at the location where the stator and drum are connected, and bubbles are more likely to break away from the molten material.
Description
Technical Field
The application relates to the field of injection molds, in particular to an injection molding device for a light guide strip of an automobile atmosphere lamp.
Background
Injection mold (Injectionmold) is a processing method used in mass production of parts with complex shapes, and is mainly applied to the industrial field. The injection mold process is to inject the heated and melted material into a mold cavity by high pressure, and obtain a formed product after cooling and solidification; the molding characteristics are divided into two types, namely a thermosetting plastic mold and a thermoplastic plastic mold.
The light guide strip of the automobile atmosphere lamp is formed by injection molding of high-refractive index materials and has the function of guiding light rays to a place to be illuminated; since the light guide bar has high requirements on optical properties, the presence of bubbles in the injection-molded product has a great influence on the properties of the product.
In the injection molding process, the reasons for generating bubbles are various, and the existing injection molding machine generally maintains pressure and keeps temperature in the injection molding process so as to achieve the effect of removing the bubbles, but the method can only remove the bubbles generated in the mold in the product molding process, the raw materials of the product have a certain viscosity when being melted, the internal bubbles can not be removed well, and the light guide property of the product is affected.
Disclosure of Invention
Accordingly, it is necessary to provide an injection molding device for a light guide bar of an automotive atmosphere lamp, which solves the problem that bubbles existing in the raw materials of the existing injection molding products in a molten state affect the quality of the products.
The above purpose is achieved by the following technical scheme:
an injection molding device of an automobile atmosphere lamp light guide bar comprises an injection molding machine and a bubble removing mechanism; the injection molding machine is horizontally arranged; the bubble removing mechanism comprises a chassis, a fixed cylinder, a rotary cylinder, a fluted disc and a vacuum pump; the chassis is arranged on the injection molding machine, one end of the fixed cylinder is arranged on the chassis, the axis of the fixed cylinder horizontally extends, the rotary cylinder is coaxial with the fixed cylinder, the rotary cylinder is rotationally connected with the fixed cylinder around the axis of the rotary cylinder, and the rotary cylinder can slide along the axis direction of the fixed cylinder relative to the fixed cylinder; the fluted disc is rotatably arranged on one end face of the rotary drum far away from the fixed drum, the fixed drum and the rotary drum are internally provided with a first cavity with variable volume, and materials can flow in the first cavity after being melted; the vacuum pump is arranged on the injection molding machine and communicated with the first cavity and used for pumping gas in the first cavity.
Preferably, the fixed cylinder and the rotary cylinder are integrally conical, the diameter of one end of the fixed cylinder, which is close to the chassis, is larger than that of one end of the rotary cylinder, which is close to the fluted disc, a first groove is formed in one end face of the fixed cylinder, which is close to the rotary cylinder, a first boss is arranged at one end of the rotary cylinder, which is close to the fixed cylinder, the first boss is rotatably arranged in the first groove, and the first boss can slide in the first groove along the axial direction of the fixed cylinder; the position that is close to the chassis of the peripheral face of the fixed cylinder is provided with a through hole, and the through hole is positioned above the fixed cylinder and is connected with the vacuum pump.
Preferably, the injection molding device of the light guide bar of the automobile atmosphere lamp further comprises a movable die and a fixed die, wherein the movable die and the fixed die can be opened and closed, and a second cavity is arranged between the movable die and the fixed die; the bubble removing mechanism further comprises a circulating assembly, the circulating assembly comprises a first circulating pump, a second circulating pump, a discharging pipe and a feeding pipe, the first circulating pump and the second circulating pump are arranged on the injection molding machine, the output end of the first circulating pump is connected with the chassis, the first circulating pump is communicated with the first cavity, the input end of the second circulating pump is rotationally connected with the fluted disc, the second circulating pump is communicated with the first cavity, and the input end of the second circulating pump is telescopic; two ends of the discharging pipe are respectively communicated with the input end of the first circulating pump and the second cavity; and two ends of the feeding pipe are respectively communicated with the output end of the second circulating pump and the second cavity.
Preferably, the circulation assembly further comprises a first partition and a second partition; the first partition board is arranged in the movable mould in a sliding way and is used for controlling the communication and the separation between the second cavity in the movable mould and the discharge pipe; the second baffle slides and sets up in the cover half, and the second baffle is used for controlling the intercommunication and the wall between second cavity and the inlet pipe in the cover half.
Preferably, the first circulating pump, the discharging pipe, the second circulating pump and the feeding pipe are all provided with heat preservation pieces.
Preferably, the injection molding device of the light guide strip of the automobile atmosphere lamp further comprises a motor and a gear, wherein the motor is arranged on the injection molding machine, the gear is arranged on an output shaft of the motor, teeth are formed in the peripheral surface of the fluted disc, and the gear can be meshed with the fluted disc.
Preferably, the gear is a half gear, namely, the peripheral surface part of the gear is toothless; the injection molding mechanism further comprises a reset assembly, the reset assembly comprises a first spring, a ratchet wheel, a pawl and an elastic piece, two ends of the first spring are respectively arranged on an extension line in the radial direction of the chassis and the fluted disc, and two ends of the first spring are respectively connected with the chassis and the fluted disc; the ratchet wheel is sleeved on the rotary drum and fixedly connected with the rotary drum, the pawl is rotatably arranged on the fluted disc, and the pawl can be clamped with the ratchet wheel; one end of the elastic sheet is arranged on the fluted disc, and the other end of the elastic sheet is connected with the pawl.
Preferably, the first springs are arranged in the first cavity, a plurality of first springs are arranged in the first cavity, and the plurality of first springs are distributed along the axis circumference array of the fluted disc.
Preferably, the reset assembly further comprises a second spring, wherein the second spring is arranged between the chassis and the fluted disc and used for resetting the rotating drum after the rotating drum is close to the fixed drum.
Preferably, the automatic feeding device further comprises a mounting cylinder, wherein the mounting cylinder is mounted on the injection molding machine, the mounting cylinder is sleeved on the outer peripheral surfaces of the fixed cylinder and the rotary cylinder, one end of the mounting cylinder is mounted on the chassis, the other end of the mounting cylinder is rotationally connected with the fluted disc, the fluted disc can slide along the axis direction of the mounting cylinder relative to the mounting cylinder, and heating wires are arranged on the fixed cylinder and the rotary cylinder.
The beneficial effects of the application are as follows: after the molten material is introduced into the first cavity, the rotation of the rotary drum can apply a shearing force to the molten material at the connecting position of the fixed drum and the rotary drum, so that the viscosity of the molten material at the connecting position is reduced, and the rising resistance of bubbles in the molten material is reduced, so that the bubbles are more easily separated from the molten material; the bubble that moves to the upper surface of melting material from melting material inside, when the rotary drum slides along its axis for the fixed cylinder, the volume in the first cavity changes, makes the inside and outside pressure of bubble change then, and the bubble breaks more easily, promotes the complete discharge of gas in the melting material, makes things convenient for the pump to take out gas.
Drawings
Fig. 1 is a schematic structural diagram of an injection molding device for a light guide bar of an automotive atmosphere lamp according to an embodiment of the present application;
fig. 2 is a top view of an injection molding device for a light guide bar of an automotive atmosphere lamp according to an embodiment of the present application;
fig. 3 is a schematic structural view of an installation barrel of an injection molding device for a light guide bar of an automotive atmosphere lamp according to an embodiment of the present application;
fig. 4 is a top view of an installation barrel of an injection molding device for a light guide bar of an automotive atmosphere lamp according to an embodiment of the present application;
FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 4;
FIG. 6 is a cross-sectional view taken along the direction B-B in FIG. 4;
wherein: 100. an injection molding machine; 101. an injection molding system; 102. a movable mold; 103. a fixed mold; 201. a chassis; 202. setting a barrel; 203. a rotating drum; 204. fluted disc; 205. a vacuum pump; 206. a first cavity; 207. a first groove; 208. a first boss; 209. a through hole; 210. a first circulation pump; 211. a discharge pipe; 212. a second circulation pump; 213. a feed pipe; 214. a motor; 215. a gear; 216. a first spring; 217. a ratchet wheel; 218. a pawl; 219. an elastic sheet; 220. a second spring; 221. a mounting cylinder; 222. a second boss; 223. and a second groove.
Detailed Description
The present application will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
As shown in fig. 1 to 6, the embodiment of the application provides an injection molding device for a light guide bar of an automobile atmosphere lamp, which is suitable for removing bubbles in raw materials in the production process of injection molding products. Specifically, the injection molding device for the light guide bar of the automobile atmosphere lamp provided by the embodiment of the application comprises an injection molding machine 100 and a bubble removing mechanism; the injection molding machine 100 is horizontally arranged; the bubble removing mechanism comprises a chassis 201, a fixed cylinder 202, a rotary cylinder 203, a fluted disc 204 and a vacuum pump 205; the chassis 201 is mounted on the injection molding machine 100, one end of the fixed cylinder 202 is mounted on the chassis 201, the axis of the fixed cylinder 202 horizontally extends, the rotary cylinder 203 is coaxial with the fixed cylinder 202, the rotary cylinder 203 is rotationally connected with the fixed cylinder 202 around the axis of the rotary cylinder 203, and the rotary cylinder 203 can slide along the axis direction of the fixed cylinder 202 relative to the fixed cylinder 202; the fluted disc 204 is rotatably arranged on one end surface of the rotary drum 203 far away from the fixed drum 202, the fixed drum 202 and the rotary drum 203 are internally provided with a first cavity 206 with variable volume, and materials can flow in the first cavity 206 after being melted; the vacuum pump 205 is disposed on the injection molding machine 100, and the vacuum pump 205 is in communication with the first cavity 206 for pumping gas in the first cavity 206.
Specifically, after the molten material is introduced into the first cavity 206, the rotation of the drum 203 can apply a shearing force to the molten material at the connection position of the fixed drum 202 and the drum 203, so that the viscosity of the molten material at the connection position is reduced, and the rising resistance of bubbles in the molten material is reduced, so that the bubbles are more easily separated from the molten material; the air bubbles moving up from the interior of the molten material to the upper surface of the molten material change the volume in the first cavity 206 when the drum 203 slides along its axis relative to the fixed drum 202, and thus the pressure inside and outside the air bubbles changes, the air bubbles are easier to break, the gas in the molten material is promoted to be completely discharged, and the pump is facilitated to pump the gas out.
In this embodiment, the fixed cylinder 202 and the rotating cylinder 203 are integrally tapered, the diameter of one end of the fixed cylinder 202, which is close to the chassis 201, is larger than the diameter of one end of the rotating cylinder 203, which is close to the fluted disc 204, a first groove 207 is formed in one end surface of the fixed cylinder 202, which is close to the rotating cylinder 203, a first boss 208 is formed in one end of the rotating cylinder 203, which is close to the fixed cylinder 202, one end of the first boss 208 is rotatably arranged in the first groove 207, and the first boss 208 can slide in the first groove 207 along the axial direction of the fixed cylinder 202; a through hole 209 is formed in the circumferential surface of the fixed cylinder 202 at a position close to the chassis 201, the through hole 209 is positioned above the fixed cylinder 202, and the vacuum pump 205 is connected with the through hole 209.
Specifically, the liquid level of the molten material filled in the first cavity 206 is always located below the through hole 209 and higher than the end surface of the fixed barrel 202 connected to the drum 203, so that the maximum amount of molten material can be processed while the vacuum pump 205 is prevented from sucking the molten material. The rotary drum 203 rotates, and gas in the molten material rises to a position attached to the inner wall of the rotary drum 203, and bubbles move to the position of the chassis 201 along the inner walls of the rotary drum 203 and the fixed drum 202 because the inner walls of the rotary drum 203 and the fixed drum 202 are conical surfaces, so that the gas floats on the upper surface of the molten material and is concentrated near the through holes 209, and the gas is conveniently pumped and discharged through the vacuum pump 205.
In this embodiment, the injection molding device for the light guide bar of the automotive atmosphere lamp further includes a movable mold 102 and a fixed mold 103, wherein the movable mold and the fixed mold 103 can be opened and closed, and a second cavity is arranged between the movable mold 102 and the fixed mold 103; the bubble removing mechanism further comprises a circulating assembly, the circulating assembly comprises a first circulating pump 210, a second circulating pump 212, a discharging pipe 211 and a feeding pipe 213, the first circulating pump 210 and the second circulating pump 212 are arranged on the injection molding machine 100, the output end of the first circulating pump 210 is connected with the chassis 201, the first circulating pump 210 is communicated with the first cavity 206, the input end of the second circulating pump 212 is rotationally connected with the fluted disc 204, the second circulating pump 212 is communicated with the first cavity 206, and the input end of the second circulating pump 212 is telescopic; two ends of the discharging pipe 211 are respectively communicated with the input end of the first circulating pump 210 and the second cavity; both ends of the feed pipe 213 are respectively communicated with the output end of the second circulation pump 212 and the second cavity.
Specifically, the fixed mold 103 is fixedly arranged on the injection molding machine 100, and the movable mold 102 and the sliding mold are arranged on the injection molding machine 100; the second cavity is a forming cavity of the product, the molten material filled in the second cavity enters the discharge pipe 211 under the action of the first circulating pump 210, then bubbles can be removed by entering the first cavity 206 through the first circulating pump 210, the molten material except the bubbles is sucked into the feed pipe 213 under the action of the second circulating pump 212 and flows into the second cavity, the molten material in the second cavity fills each corner of the second cavity in the flowing process, and the probability of appearance defects of the formed product is reduced.
In this embodiment, the circulation assembly further includes a first partition and a second partition; the first partition board is arranged in the movable die 102 in a sliding manner and is used for controlling the communication and the separation between the second cavity in the movable die 102 and the discharge pipe 211; the second partition board is slidably disposed in the fixed mold 103, and is used for controlling communication and separation between the second cavity in the fixed mold 103 and the feeding pipe 213.
Specifically, the injection molding machine 100 further includes an injection molding system 101 (the system is a conventional technical means well known to those skilled in the art and will not be described herein in detail), the injection molding system 101 is connected to the fixed mold 103, and the injection molding system 101 is used for filling the second cavity with the molten material; the movable die 102 and the fixed die 103 are internally provided with driving parts which are conventional power elements and are respectively used for driving the first partition plate to slide in the movable die 102 and the second partition plate to slide in the fixed die 103; heating wires are arranged in the first partition plate and the second partition plate and used for preserving heat of the surrounding molten materials, and the molten materials are prevented from being cooled and solidified; the first partition plate partitions the second cavity from the feeding pipe 213 while partitioning the second cavity from the discharging pipe 211, and the second cavity forms a completely closed cavity, so that the molten material in the second cavity is convenient to cool and form.
In this embodiment, heat insulation members are disposed on the first circulation pump 210, the discharge pipe 211, the second circulation pump 212, and the feed pipe 213.
Specifically, the first circulation pump 210, the discharging pipe 211, the second circulation pump 212 and the feeding pipe 213 are all wrapped with heat insulation cotton, so that the heat insulation effect is achieved on the molten materials in the first circulation pump, the discharging pipe 211, the second circulation pump 212 and the feeding pipe 213, and the fluidity is reduced after the molten materials are prevented from being cooled, so that the working efficiency is affected.
In this embodiment, the injection molding device for the light guide bar of the automotive atmosphere lamp further comprises a motor 214 and a gear 215, wherein the motor 214 is installed on the injection molding machine 100, the gear 215 is installed on an output shaft of the motor 214, teeth are formed on the peripheral surface of the fluted disc 204, and the gear 215 can be meshed with the fluted disc 204.
In the present embodiment, the gear 215 is an incomplete gear, that is, a peripheral surface portion of the gear 215 has no teeth; the bubble removing mechanism further comprises a reset assembly, the reset assembly comprises a first spring 216, a ratchet wheel 217, a pawl 218 and an elastic piece 219, two ends of the first spring 216 are respectively arranged on the extension lines of the chassis 201 and the fluted disc 204 in the radial direction, and two ends of the first spring 216 are respectively connected with the chassis 201 and the fluted disc 204; the ratchet wheel 217 is sleeved on the rotary drum 203, the ratchet wheel 217 is fixedly connected with the rotary drum 203, the pawl 218 is rotatably arranged on the fluted disc 204, and the pawl 218 can be clamped with the ratchet wheel 217; one end of the elastic piece 219 is mounted on the fluted disc 204, and the other end of the elastic piece 219 is connected with the pawl 218.
Specifically, the fluted disc 204 can rotate around its own axis in a first direction or a second direction, when the fluted disc 204 rotates in the first direction, the ratchet wheel 217 is clamped with the pawl 218, the ratchet wheel 217 and the pawl 218 are in a relatively static state, and the fluted disc 204 can drive the rotary drum 203 to rotate through the cooperation of the ratchet wheel 217 and the pawl 218; when the fluted disc 204 rotates in the second direction, the ratchet wheel 217 can press the pawl 218 to rotate around the axis of the ratchet wheel 217, the pawl 218 rotates relative to the ratchet wheel 217, and the elastic piece 219 drives the pawl 218 to be always abutted with the ratchet wheel 217; when the rotary drum 203 rotates in the first direction, the first spring 216 is twisted and contracted to drive the rotary drum 203 to approach the fixed drum 202, so that the volume of the first cavity 206 is reduced, the pressure difference between the inside and the outside of bubbles on the surface of the molten material can be changed, the bubbles are easier to break, and the gas is convenient to discharge; when the gear 215 is disengaged from the fluted disc 204, the first spring 216 which is torsionally contracted is restored, the fluted disc 204 rotates towards the second direction, the pawl 218 and the ratchet wheel 217 are not clamped at the moment, the rotary drum 203 does not rotate towards the second direction, the volume of the first cavity 206 is increased, the pressure difference between the inside and the outside of bubbles on the surface of the molten material is changed again, and the difficulty of breaking the bubbles is reduced.
In the present embodiment, the first springs 216 are disposed in the first cavity 206, and a plurality of first springs 216 are disposed in a circumferential array along the axis of the toothed disc 204.
Specifically, during the twisting process of the first spring 216, the first spring 216 can stir in the molten material, further accelerating the overflow speed of bubbles in the molten material.
In this embodiment, the reset assembly further includes a second spring 220, where the second spring 220 is disposed between the chassis 201 and the toothed disc 204 for resetting the drum 203 after it approaches the stator 202.
Specifically, the second spring 220 is disposed inside the first cavity 206, one end of the second spring 220 is mounted on the chassis 201, the other end of the second spring 220 is rotatably mounted on the fluted disc 204, the drum 203 moves toward the fixed drum 202 under the torsion of the first spring 216 and then compresses the second spring 220, the first spring 216 returns after torsion, the second spring 220 also returns after being compressed, and the drum 203 is pushed away from the fixed drum 202, so that the drum 203 returns more completely.
In this embodiment, the injection molding device for the light guide strip of the automotive atmosphere lamp further comprises a mounting cylinder 221, the mounting cylinder 221 is mounted on the injection molding machine 100 and sleeved on the outer peripheral surfaces of the fixed cylinder 202 and the rotary cylinder 203, one end of the mounting cylinder 221 is mounted on the chassis 201, the other end of the mounting cylinder is rotationally connected with the fluted disc 204, the fluted disc 204 can slide along the axial direction of the mounting cylinder 221 relative to the mounting cylinder 221, and a heating wire is arranged on the inner wall of the mounting cylinder 221.
Specifically, a second groove 223 is formed at one end of the mounting cylinder 221, which is close to the fluted disc 204, a second boss 222 is formed at one end of the fluted disc 204, which is close to the mounting cylinder 221, the second boss 222 is rotatably arranged in the second groove 223, and the second boss 222 can slide in the second groove 223 along the axial direction of the mounting cylinder 221; the mounting cylinder 221 plays a role in heat preservation of the fixed cylinder 202 and the rotary cylinder 203, and the mounting cylinder 221 can limit the fluted disc 204 and play a supporting role at the same time, so that the normal operation of the fluted disc 204 is ensured; the heater wire is capable of heating and maintaining the temperature of the molten material in the first cavity 206 as the drum 203 rotates and slides.
The working principle and the working method of the injection molding device for the light guide bar of the automobile atmosphere lamp provided by the embodiment are as follows:
firstly, placing a material into an injection molding system 101, heating the material to a molten state through heating of the injection molding system 101, closing a fixed mold 103 and a movable mold 102, and then injecting the molten material into a second cavity between the fixed mold 103 and the movable mold 102 through the injection molding system 101; at this time, the first separator is opened, the first circulation pump 210 is started at the same time, after the molten material enters the second cavity, the molten material enters the discharge pipe 211 after passing through the position of the first separator, then reaches the first circulation pump 210 through the discharge pipe 211, the first circulation pump 210 pumps the molten material into the first cavity 206, the fixed cylinder 202 and the heating wire outside the rotary cylinder 203 are started at the same time, the molten material in the first cavity 206 is insulated, the vacuum pump 205 is started, and after the molten material is continuously pumped into the first cavity 206 by the first circulation pump 210, the vacuum pump 205 discharges redundant gas in the first cavity 206 until the liquid level of the molten material in the first cavity 206 exceeds one end of the fixed cylinder 202 far away from the chassis 201.
Then, the injection molding system 101 stops feeding in the second cavity, the motor 214 is started, the motor 214 drives the gear 215 to rotate, after the gear 215 is meshed with the fluted disc 204, the fluted disc 204 rotates along with the gear 215, the fluted disc 204 rotates to drive the rotary drum 203 to rotate through the clamping connection of the pawl 218 and the ratchet wheel 217, after the rotary drum 203 rotates relative to the fixed drum 202, the rotary drum 203 can drive molten materials in the rotary drum 203 to rotate, at the position where the rotary drum 203 intersects the fixed drum 202, the molten materials in the rotary drum 203 rotate, the materials in the fixed drum 202 are stationary, at the moment, larger shearing force is generated at the connection part of the stationary molten materials and the rotating molten materials, the viscosity of the molten materials at the position is reduced, bubbles in the molten materials at the position are easier to float upwards, in the process of rotating the fluted disc 204, the first spring 216 twists, the length of the first spring 216 in the axial direction of the rotary drum 203 is shortened, thereby driving the fluted disc 204 to approach the fixed drum 202, the rotary drum 204 pushes the rotary drum 203 to move towards the fixed drum 202, the second spring 220 is compressed by the fluted disc 204, the volume of the first cavity 206 is reduced, the liquid level of the molten materials rises, the liquid level of the molten materials and the floating gas between the liquid level and the liquid level 205 is more easily broken, and the pressure difference between the liquid level and the air is more easily changed, and the air bubbles are more easily broken, and the pressure difference between the air is more than the air is released.
During the process of approaching the toothed disc 204 to the fixed barrel 202, the teeth on the gear 215 can be meshed with the toothed disc 204, and the gear 215 and the toothed disc 204 are not meshed unless the part of the gear 215 without the teeth is rotated to a position close to the toothed disc 204.
When the part of the gear 215 without teeth rotates to a position close to the fluted disc 204, the fluted disc 204 is not subjected to rotating force, at the moment, the twisted first spring 216 starts to reset, drives the fluted disc 204 to reversely rotate and pushes the rotary disc to move away from the fixed cylinder 202, and meanwhile, the compressed second spring 220 stretches, so that the fluted disc 204 drives the rotary drum 203 to move together; during the reverse rotation of the toothed disc 204, the pawl 218 rotates, compressing the resilient tab 219 and disengaging the ratchet 217, and the drum 203 does not rotate.
The motor 214 continuously rotates, the gear 215 continuously engages with and disengages from the turntable, the drum 203 drives the molten material in the drum to continuously rotate, and bubbles in the molten material in the first cavity 206 are continuously discharged, so that the purpose of removing the bubbles in the molten material is achieved.
After bubbles in the molten material in the first cavity 206 are removed, the first circulation pump 210 and the second circulation pump 212 are turned on, the first circulation pump 210 pumps the molten material in the second cavity, the second circulation pump 212 pumps the molten material in the first cavity 206 after the bubbles are removed, the molten material is conveyed into the second cavity through the feeding pipe 213, then the first partition plate and the second partition plate are controlled by the driving piece to seal the second cavity, and the molten material in the second cavity is cooled.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. An automobile atmosphere lamp light guide strip injection molding device, which is characterized by comprising: an injection molding machine and a bubble removing mechanism;
the injection molding machine is horizontally arranged;
the bubble removing mechanism comprises a chassis, a fixed cylinder, a rotary cylinder, a fluted disc and a vacuum pump; the chassis is arranged on the injection molding machine, one end of the fixed cylinder is arranged on the chassis, the axis of the fixed cylinder horizontally extends, the rotary cylinder is coaxial with the fixed cylinder, the rotary cylinder is rotationally connected with the fixed cylinder around the axis of the rotary cylinder, and the rotary cylinder can slide along the axis direction of the fixed cylinder relative to the fixed cylinder; the fluted disc is rotatably arranged on one end face of the rotary drum far away from the fixed drum, the fixed drum and the rotary drum are internally provided with a first cavity with variable volume, and materials can flow in the first cavity after being melted; the vacuum pump is arranged on the injection molding machine and communicated with the first cavity and used for pumping gas in the first cavity.
2. The injection molding device for the light guide strip of the automobile atmosphere lamp according to claim 1, wherein the fixed cylinder and the rotary cylinder are integrally conical, the diameter of one end of the fixed cylinder, which is close to the chassis, is larger than that of one end of the rotary cylinder, which is close to the fluted disc, a first groove is formed in one end face of the fixed cylinder, which is close to the rotary cylinder, a first boss is arranged at one end of the rotary cylinder, which is close to the fixed cylinder, one end of the first boss is rotatably arranged in the first groove, and the first boss can slide in the first groove along the axial direction of the fixed cylinder; the position that is close to the chassis of the peripheral face of the fixed cylinder is provided with a through hole, and the through hole is positioned above the fixed cylinder and is connected with the vacuum pump.
3. The injection molding device for the light guide bar of the automobile atmosphere lamp according to claim 1, further comprising a movable mold and a fixed mold, wherein the movable mold and the fixed mold can be opened and closed, and a second cavity is arranged between the movable mold and the fixed mold; the bubble removing mechanism further comprises a circulating assembly, the circulating assembly comprises a first circulating pump, a second circulating pump, a discharging pipe and a feeding pipe, the first circulating pump and the second circulating pump are arranged on the injection molding machine, the output end of the first circulating pump is connected with the chassis, the first circulating pump is communicated with the first cavity, the input end of the second circulating pump is rotationally connected with the fluted disc, the second circulating pump is communicated with the first cavity, and the input end of the second circulating pump is telescopic; two ends of the discharging pipe are respectively communicated with the input end of the first circulating pump and the second cavity; and two ends of the feeding pipe are respectively communicated with the output end of the second circulating pump and the second cavity.
4. A light bar injection molding apparatus for an automotive atmosphere lamp as recited in claim 3 wherein the recycling assembly further comprises a first partition and a second partition; the first partition board is arranged in the movable mould in a sliding way and is used for controlling the communication and the separation between the second cavity in the movable mould and the discharge pipe; the second baffle slides and sets up in the cover half, and the second baffle is used for controlling the intercommunication and the wall between second cavity and the inlet pipe in the cover half.
5. The injection molding device for the light guide bar of the automobile atmosphere lamp according to claim 3, wherein heat preservation pieces are arranged on the first circulating pump, the discharging pipe, the second circulating pump and the feeding pipe.
6. The injection molding device for the light guide strip of the automobile atmosphere lamp according to claim 1, further comprising a motor and a gear, wherein the motor is arranged on the injection molding machine, the gear is arranged on an output shaft of the motor, teeth are formed on the peripheral surface of the fluted disc, and the gear can be meshed with the fluted disc.
7. The injection molding device for the light guide bar of the automotive atmosphere lamp according to claim 6, wherein the gear is a half gear, namely, the peripheral surface part of the gear is toothless; the bubble removing mechanism further comprises a reset assembly, the reset assembly comprises a first spring, a ratchet wheel, a pawl and an elastic piece, two ends of the first spring are respectively arranged on an extension line of the radial direction of the chassis and the fluted disc, and two ends of the first spring are respectively connected with the chassis and the fluted disc; the ratchet wheel is sleeved on the rotary drum and fixedly connected with the rotary drum, the pawl is rotatably arranged on the fluted disc, and the pawl can be clamped with the ratchet wheel; one end of the elastic sheet is arranged on the fluted disc, and the other end of the elastic sheet is connected with the pawl.
8. The device of claim 7, wherein the first springs are disposed in the first cavity and are distributed in a plurality of circumferential arrays along the axis of the fluted disc.
9. The device of claim 7, wherein the reset assembly further comprises a second spring disposed between the chassis and the fluted disc for resetting the drum after the drum is adjacent to the stator.
10. The injection molding device for the light guide strip of the automobile atmosphere lamp according to claim 1, further comprising a mounting cylinder, wherein the mounting cylinder is mounted on the injection molding machine, the mounting cylinder is sleeved on the outer peripheral surfaces of the fixed cylinder and the rotating cylinder, one end of the mounting cylinder is mounted on the chassis, the other end of the mounting cylinder is rotationally connected with the fluted disc, the fluted disc can slide along the axis direction of the mounting cylinder relative to the mounting cylinder, and heating wires are arranged on the fixed cylinder and the rotating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311336613.8A CN117227079A (en) | 2023-10-17 | 2023-10-17 | Injection molding device for light guide strip of automobile atmosphere lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311336613.8A CN117227079A (en) | 2023-10-17 | 2023-10-17 | Injection molding device for light guide strip of automobile atmosphere lamp |
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| Publication Number | Publication Date |
|---|---|
| CN117227079A true CN117227079A (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311336613.8A Pending CN117227079A (en) | 2023-10-17 | 2023-10-17 | Injection molding device for light guide strip of automobile atmosphere lamp |
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| Country | Link |
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| CN (1) | CN117227079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118205149A (en) * | 2024-05-21 | 2024-06-18 | 长春汽车滤清器有限责任公司 | Injection molding method of air filter |
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2023
- 2023-10-17 CN CN202311336613.8A patent/CN117227079A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118205149A (en) * | 2024-05-21 | 2024-06-18 | 长春汽车滤清器有限责任公司 | Injection molding method of air filter |
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