Plastic fitting injection molding device for an automotive part and its injection molding method

Abstract

The present invention discloses an injection molding device for plastic fittings of automobile parts and an injection molding method thereof, which relates to the technical field of injection molding devices. The injection molding device includes an injection molding table, and a movable component is slidably arranged inside the injection molding table. By arranging the movable component on the top of the injection molding table, the light matrix is irradiated and sensed by the light sensors on the side of the movable top plate and the movable substrate to judge the deviation state between the lower mold and the upper mold. Through the control method of first controlling one by one and then controlling all energizations, the positioning component drives the circular hole connecting plate on the side of the upper mold and the conical block to be in a concentric circle state, improving the positioning effect; and by controlling the up and down adjustment actions of the adjusting component, the lower mold is adjusted to be parallel to the upper mold, ensuring a fixed installation of the lower mold at a certain angle.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding devices, and specifically to an injection molding device for plastic fittings of automotive parts and an injection molding method thereof. Background Art

[0002] Automotive plastic workpieces are mainly formed and processed by injection molding devices. The injection molding device consists of an extruder and an injection mold, and is used to manufacture plastic products of various shapes and sizes; in the injection molding process, the extruder conveys the heated and melted plastic to the nozzle through the rotation and propulsion of the screw, and then the nozzle injects the melted plastic into the cavity of the injection mold, and finally forms the required plastic product through the cooling process.

[0003] Traditional molds are prone to wear of the screw holes of the molds, resulting in the molds being prone to deviation and instability during mold closing, which affects the production quality of workpieces; at the same time, the temperature control parts of existing molds are difficult to perform small-range temperature adjustment inside the mold, resulting in higher requirements for the heat exchange system efficiency outside the mold, which easily affects the injection molding quality of the injection-molded workpieces of the mold. Summary of the Invention

[0004] Therefore, in order to solve the above deficiencies, the present invention provides an injection molding device for plastic fittings of automotive parts and an injection molding method thereof.

[0005] The present invention is implemented as follows. An injection molding device for plastic fittings of automotive parts and an injection molding method thereof are constructed. The device includes an injection molding table; an activity component is slidably arranged inside the injection molding table; a lower mold is fixedly arranged on the top side of the activity component; a working groove is arranged on the top side of the injection molding table, and a filling rubber is fixedly arranged on the inner wall of the working groove; the top end of the lifting table of the injection molding table is fixedly installed with a movable top plate through bolts; an upper mold is fixedly installed at the bottom of the movable top plate through bolts; a general controller is fixedly installed on the front side of the injection molding table through bolts.

[0006] The activity component includes an activity plate slidably arranged on the inner bottom side of the working groove on the top of the injection molding table; a displacement sensor with data sensing function is fixedly installed on the top of the activity plate through bolts; adjustment components with adjustment function are fixedly installed around the top of the activity plate through bolts; the top end of the adjustment component is fixedly installed with an activity substrate through bolts; a horizontal detector with data sensing function is fixedly installed on the middle side of the bottom of the activity substrate through bolts; a cooling component is fixedly installed on the top of the activity plate through bolts, and the top side of the cooling component is fixedly connected with the through hole of the inner cavity of the activity substrate; a positioning component with positioning function is fixedly installed on the side of the activity substrate through bolts.

[0007] Preferably, the adjustment assembly includes adjustment members fixedly installed on the peripheral sides of the top of the movable plate by bolts; a fixed cross plate on the top side of the adjustment member is fixedly provided with a limit sphere; an adsorption coil is fixedly arranged on the inner wall of the limit sphere; a rotating sphere is rotatably arranged on the inner wall of the limit sphere; a fixed screw cylinder is fixedly installed by welding on the top of the rotating sphere; a pressure sensor with data sensing function is fixedly installed on the side of the adjustment member by bolts.

[0008] Preferably, the movable substrate includes a heat-conducting plate body fixedly installed on the top side of the fixed screw cylinder; a linkage member is fixedly installed on the side of the heat-conducting plate body by bolts; the linkage member is specifically composed of a drive motor, a gear set, and an installation shell.

[0009] Preferably, a connecting plate is inserted and fixed in the central hole of the gear set of the linkage member; a through groove is arranged inside the plate body of the connecting plate, and a thermoelectric cooler is fixedly installed in the through groove by bolts; heat-conducting colloids are adhered to the front and rear side plates of the connecting plate.

[0010] Preferably, the cooling assembly includes a pressure stabilizing valve fixedly installed on the top of the movable plate by bolts, and the side pipe orifice of the pressure stabilizing valve is connected to the heat-conducting plate body through a connecting pipe; a bifurcated pipe is inserted and fixed on the side pipe orifice of the pressure stabilizing valve.

[0011] Preferably, a flow dividing valve is fixedly installed at the end of the side of the bifurcated pipe; a flow collecting valve with a flow collecting function is fixedly installed on the side of the flow dividing valve through a connecting pipe; an external connecting pipe is inserted and fixed on the side pipe orifice of the flow collecting valve.

[0012] Preferably, the positioning assembly includes a heat-insulating mounting plate fixedly installed on the side of the heat-conducting plate body by bolts; a light sensor with data sensing function is fixedly installed on the front side of the top of the heat-conducting plate body by bolts.

[0013] Preferably, a micro motor is fixedly installed on the rear side of the bottom of the heat-conducting plate body by bolts; a conical block is inserted and fixed on the top transmission shaft of the micro motor, and the conical block is rotatably arranged on the rear side of the top of the heat-conducting plate body; a hole groove is formed on the conical surface of the conical block, and a spiral coil and a spring are arranged inside the hole groove.

[0014] Preferably, a sliding rod is slidably arranged on the outer conical surface of the conical block, and the sliding rod is also slidably arranged inside the hole groove; the sliding rod is slidably arranged in the through groove on the side of the concave block; a ball is rotatably arranged at the outer end of the sliding rod.

[0015] An injection molding method for plastic fittings of automotive parts includes the following steps:

[0016] Step 1: Mold installation; The staff installs the lower mold and the upper mold on the top side of the movable assembly and the bottom of the movable top plate respectively through external equipment and bolts;

[0017] Step 2: Mold positioning; the lifting table of the injection molding table is controlled by the main controller to drive the movable top plate to move downward, thereby driving the lower mold and the upper mold to perform a trial clamping action. Here, a light matrix is irradiated and sensed through the light sensors on the sides of the movable top plate and the movable substrate, and the main controller judges the deviation state of the lower mold and the upper mold according to the sensing data of the two groups of light sensors.

[0018] Step 3: Horizontal adjustment during trial clamping; during the trial clamping action, the circular hole plate body on the side of the upper mold is sleeved downward to press the concave block and make it come into contact and slide with the conical block. Here, the sliding rod on the concave block slides into the hole groove inside the conical block, and then the coil inside the hole groove on the side of the mold clamping deviation is controlled to be energized according to the sensing data of the light sensor. Since the conical block and the concave block are in a rotating state during operation, the energization of the coil inside the hole groove is controlled in a way of first energizing one by one and then energizing all. Thus, during the mold clamping process of the lower mold and the upper mold, the coil inside the hole groove on the side of the deviation adsorbs the sliding rod. Subsequently, the conical block is driven to rotate by the micro motor, and then the sliding rod outside the concave block realizes the state of keeping fixed on the side of the deviation inside the circular hole plate body on the side of the upper mold and pushes the lower mold and the movable substrate to displace toward the side of the deviation. Here, the adjustment assembly synchronously executes the adjustment action, and the sliding rod far from the side of the deviation keeps sliding and retracting without affecting the adjustment action. Finally, all the sliding rods are energized to keep the extended state to ensure that the circular hole connecting plate on the side of the upper mold and the conical block are in a concentric circle state.

[0019] Step 4: Horizontal adjustment during trial clamping; when the adjustment assembly synchronously executes the adjustment action, the adjusting part is controlled by the main controller to perform the up and down adjustment action under the monitoring of the pressure sensor, thereby driving the height around the lower mold to be controlled individually, and under the monitoring of the horizontal detector, the lower mold is adjusted to be parallel to the upper mold. Here, since the fixed screw cylinder is respectively bolted to the movable substrate and the lower mold, the rotating sphere rotates inside the limiting sphere with the adjustment actions of the movable substrate and the lower mold. After the adjustment is completed, the coil is energized to adsorb the rotating sphere to ensure the fixed installation of the lower mold at a certain angle.

[0020] Step Five: Mold Closing Test; The lifting platform of the injection molding table drives the movable top plate to move downward, driving the lower mold and the upper mold to perform a mold closing action. Subsequently, an external device injects gas through the injection port to conduct a pressure test on the mold closing density and strength. The total controller guides the heat-conducting heat-conducting oil through the external pipeline into the flow dividing valve via the manifold valve, and then the heat-conducting oil is input into the internal cavity of the movable substrate through the flow dividing valve and the bifurcated pipe. After buffering inside the pressure stabilizing valve, the heat-conducting oil is then input into the internal cavity of the movable substrate through the connecting pipe. Here, the linkage drives the connecting plate, the electronic refrigeration sheet, and the heat-conducting colloid to perform a rotating action, so that the connecting plate drives the refrigerating end and the heating end of the electronic refrigeration sheet to face the internal cavity flow channel of the heat-conducting plate respectively. Then, the precision temperature control effect of the electronic refrigeration sheet can be used to make a micro-adjustment of 1 - 3 degrees Celsius to the heat-conducting oil in the internal cavity flow channel of the heat-conducting plate, and efficiently exchange heat with the heat inside the lower mold and the upper mold, which is beneficial to making a micro-temperature control of the lower mold and the upper mold by using the high heat conductivity of the heat-conducting oil.

[0021] Step Six: Re-mold Closing and Injection Molding; An external device injects injection materials through the injection port into the lower mold and the upper mold for pressure molding, and repeats the test process of the movable substrate and the cooling component in Step Four to make a micro-temperature control of the temperature inside the lower mold and the upper mold to facilitate improving the injection molding effect and reducing the formation of injection bubbles.

[0022] The present invention has the following advantages: The present invention provides an injection molding device and an injection molding method for plastic fittings of automotive parts through improvement. Compared with the same type of equipment, the following improvements are made:

[0023] For the injection molding device and the injection molding method for plastic fittings of automotive parts of the present invention, by arranging the movable component on the top of the injection molding table, the light matrix is irradiated and sensed through the light sensors on the sides of the movable top plate and the movable substrate to judge the deviation state between the lower mold and the upper mold. Through the control method of first controlling each one by power-on and then controlling all by power-on, the positioning component drives the circular hole connecting plate on the side of the upper mold to be concentric with the conical block, improving the positioning effect; and by controlling the up and down adjustment action of the adjusting part, the lower mold is adjusted to be parallel to the upper mold, ensuring a fixed installation of the lower mold at a certain angle; the linkage drives the electronic refrigeration sheet to rotate so that its refrigerating end and heating end face the internal cavity flow channel of the heat-conducting plate respectively. Then, the precision temperature control effect of the electronic refrigeration sheet can be used to make a micro-temperature adjustment of the heat-conducting oil in the internal cavity flow channel of the heat-conducting plate, which is beneficial to making a micro-temperature control of the lower mold and the upper mold by using the high heat conductivity of the heat-conducting oil, so as to facilitate improving the injection molding effect and reducing the formation of injection bubbles. Description of the Drawings

[0024] Figure 1 is the structural schematic diagram of the present invention;

[0025] Figure 2 is the axonometric structural schematic diagram of the movable component of the present invention;

[0026] Figure 3 is an axonometric structural schematic diagram of the adjustment component of the present invention;

[0027] Figure 4 is a three-dimensional structural schematic diagram of the cooling component of the present invention;

[0028] Figure 5 is a sectional structural schematic diagram of the movable substrate of the present invention;

[0029] Figure 6 is an axonometric structural schematic diagram of the positioning component of the present invention.

[0030] Wherein: injection molding table - 1, movable component - 2, lower mold - 3, filling rubber - 4, movable top plate - 5, upper mold - 6, total controller - 7, movable plate - 21, displacement sensor - 22, adjustment component - 23, movable substrate - 24, horizontal detector - 25, cooling component - 26, positioning component - 27, adjusting part - 231, limiting sphere - 232, coil - 233, rotating sphere - 234, fixed screw barrel - 235, pressure sensor - 236, heat conducting plate body - 241, linkage part - 242, connecting plate - 243, electric refrigeration sheet - 244, heat conducting colloid - 245, pressure stabilizing valve - 261, bifurcated pipe - 262, flow dividing valve - 263, flow collecting valve - 264, external connecting pipe - 265, heat insulation mounting plate - 271, light sensor - 272, micro motor - 273, conical block - 274, hole groove - 275, sliding rod - 276, concave block - 277, ball - 278. Detailed implementation manners

[0031] The following describes the principles and features of the present invention in conjunction with the appended Figures 1 to 6 The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0034] Embodiment 1:

[0035] Please refer to Figures 1 to 6 , a plastic fitting injection molding device and an injection molding method for an automotive part of the present invention, including an injection molding table 1; an activity component 2 is slidably arranged inside the injection molding table 1; a lower mold 3 is fixedly arranged on the top side of the activity component 2; a working groove is arranged on the top side of the injection molding table 1, and a filling rubber 4 is fixedly arranged on the inner wall of the working groove; the top end of the lifting table of the injection molding table 1 is fixedly installed with a movable top plate 5 through bolts; an upper mold 6 is fixedly installed on the bottom of the movable top plate 5 through bolts, a connecting plate with a round hole is arranged on the side of the upper mold 6, and a light sensor 272 is fixedly installed on the connecting plate through bolts; a total controller 7 is fixedly installed on the front side of the injection molding table 1 through bolts.

[0036] The activity component 2 includes an activity plate 21 slidably arranged on the bottom side of the working groove on the top of the injection molding table 1; a displacement sensor 22 with data sensing function is fixedly installed on the top of the activity plate 21 through bolts; adjusting components 23 with adjusting function are fixedly installed around the top of the activity plate 21 through bolts; the top end of the adjusting component 23 is fixedly installed with an activity substrate 24 through bolts; a horizontal detector 25 with data sensing function is fixedly installed on the middle side of the bottom of the activity substrate 24 through bolts; a cooling component 26 is fixedly installed on the top of the activity plate 21 through bolts, and the top side of the cooling component 26 is fixedly connected with the inner cavity through hole of the activity substrate 24; a positioning component 27 with positioning function is fixedly installed on the side of the activity substrate 24 through bolts.

[0037] The adjusting component 23 includes adjusting parts 231 fixedly installed on the four surrounding sides of the top of the activity plate 21 through bolts, and the adjusting part 231 is a high-precision hydraulic cylinder specifically; a limiting sphere 232 is fixedly arranged on the fixed cross plate on the top side of the adjusting part 231; a coil 233 with adsorption function is fixedly arranged on the inner wall of the limiting sphere 232; a rotating sphere 234 is rotatably arranged on the inner wall of the limiting sphere 232; a fixed screw cylinder 235 is fixedly installed on the top of the rotating sphere 234 by welding, and the internal thread groove of the fixed screw cylinder 235 is fixedly installed with the lower mold 3 and the four surrounding side thread grooves of the activity substrate 24 through screws respectively; a pressure sensor 236 with data sensing function is fixedly installed on the side of the adjusting part 231 through bolts.

[0038] The movable substrate 24 includes a heat-conducting plate body 241 fixedly installed on the top side of the fixed screw cylinder 235. The upper and lower groups of heat-conducting plate bodies 241 surround and form the main board body of the movable substrate 24, and a heat exchange flow channel is arranged at the center surrounded by the two groups of heat-conducting plate bodies 241; a linkage member 242 is fixedly installed on the side surface of the heat-conducting plate body 241 by bolts; the linkage member 242 is specifically composed of a driving motor, a gear set and an installation shell; a connecting plate 243 is inserted and fixed in the center hole of the gear set of the linkage member 242; a through groove is arranged inside the plate body of the connecting plate 243, and a thermoelectric cooler 244 is fixedly installed in the through groove by bolts. The thermoelectric cooler 244 is specifically a semiconductor refrigeration sheet; heat-conducting colloids 245 are adhesively arranged on the front and rear side plates of the connecting plate 243.

[0039] The cooling assembly 26 includes a pressure stabilizing valve 261 fixedly installed on the top of the movable plate 21 by bolts, and the side pipe orifice of the pressure stabilizing valve 261 is connected to the heat-conducting plate body 241 through a connecting pipe; a bifurcated pipe 262 is inserted and fixed on the side pipe orifice of the pressure stabilizing valve 261; a flow dividing valve 263 is fixedly installed at the side end of the bifurcated pipe 262; a flow collecting valve 264 with a flow collecting function is fixedly installed on the side of the flow dividing valve 263 through a connecting pipe; an external connecting pipe 265 is inserted and fixed on the side pipe orifice of the flow collecting valve 264.

[0040] Embodiment Two:

[0041] Please refer to Figures 1 to 6 , for a plastic fitting injection molding device and an injection molding method of an automotive part of the present invention. Compared with Embodiment One, this embodiment further includes: The positioning assembly 27 includes a heat-insulating mounting plate 271 fixedly installed on the side surface of the heat-conducting plate body 241 by bolts; a light sensor 272 with a data sensing function is fixedly installed on the front side of the top of the heat-conducting plate body 241 by bolts; a micro motor 273 is fixedly installed on the rear side of the bottom of the heat-conducting plate body 241 by bolts; a conical block 274 is inserted and fixed on the top transmission shaft of the micro motor 273, and the conical block 274 is rotatably arranged on the rear side of the top of the heat-conducting plate body 241; a hole groove 275 is formed on the conical surface of the conical block 274, and a spiral coil and a spring are arranged inside the hole groove 275; a sliding rod 276 is slidably arranged on the outer conical surface of the conical block 274, and the sliding rod 276 is slidably arranged inside the hole groove 275; the sliding rod 276 is slidably arranged in the through groove on the side surface of the concave block 277, a key block is arranged on the outer surface of the sliding rod 276, a return spring rod is arranged on the top of the conical block 274, and the return spring rod is fixedly inserted into the inner bottom of the concave block 277; a ball 278 is rotatably arranged at the outer end of the sliding rod 276.

[0042] Based on the above, the working principle of a plastic fitting injection molding device and an injection molding method of an automotive part is as follows:

[0043] First, when using this device, first place this device in the working area, and then connect the device to an external power supply to provide the power required for the operation of this device;

[0044] Second, the staff installs the lower mold 3 and the upper mold 6 on the top side of the movable component 2 and the bottom of the movable top plate 5 respectively through external devices and bolts; the lifting table of the injection molding table 1 is controlled by the main controller 7 to drive the movable top plate 5 to move downward, driving the lower mold 3 and the upper mold 6 to perform a trial mold closing operation. Here, a light matrix irradiation and sensing are performed through the photosensors 272 on the sides of the movable top plate 5 and the movable substrate 24, and the main controller 7 judges the deviation state of the lower mold 3 and the upper mold 6 according to the sensing data of the two groups of photosensors 272;

[0045] Third, during the trial mold closing operation, the circular hole plate body on the side of the upper mold 6 is sleeved downward and presses the concave block 277, causing contact and sliding between the concave block 277 and the tapered block 274. Here, the sliding rod 276 on the concave block 277 slides into the hole groove 275 inside the tapered block 274, and then the coil inside the hole groove 275 on the side where the mold closing deviates is energized through the sensing data of the photosensor 272. Since the tapered block 274 and the concave block 277 are in a rotating state during operation, the energization of the coil inside the hole groove 275 is controlled in a way of first energizing one by one and then energizing all; thus, during the mold closing process of the lower mold 3 and the upper mold 6, the coil inside the hole groove 275 on the side where the deviation occurs adsorbs the sliding rod 276. Subsequently, the tapered block 274 is driven to rotate by the micro motor 273, and then the sliding rod 276 outside the concave block 277 is fixed inside the circular hole plate body on the side of the upper mold 6, and the sliding rod 276 on the side where the deviation occurs keeps the fixed state and pushes the lower mold 3 and the movable substrate 24 to displace to the side where the deviation occurs. Here, the adjusting assembly 23 synchronously executes the adjusting action, while the sliding rod 276 on the relatively close side of the lower mold 3 and the upper mold 6 keeps sliding and retracting without affecting the adjusting action. Finally, all the sliding rods 276 are energized to keep the extended state to ensure that the circular hole connecting plate on the side of the upper mold 6 and the tapered block 274 are in a concentric circle state;

[0046] Fourth, when the adjusting assembly 23 synchronously executes the adjusting action, the adjusting member 231 is controlled by the main controller 7 to perform the up and down adjusting action under the monitoring of the pressure sensor 236, thereby driving the single control of the height around the lower mold 3, and under the monitoring of the horizontal detector 25, the lower mold 3 is adjusted to be parallel to the upper mold 6. Here, since the fixed screw cylinder 235 is respectively bolted to the movable substrate 24 and the lower mold 3, the fixed screw cylinder 235 makes the rotating sphere 234 rotate inside the limiting sphere 232 along with the adjusting actions of the movable substrate 24 and the lower mold 3. After the adjustment is completed, the coil 233 is energized to adsorb the rotating sphere 234 to ensure the fixed installation of the lower mold 3 at a certain angle;

[0047] Fifthly, the lifting platform of the injection molding table 1 drives the movable top plate 5 to move downward, driving the lower mold 3 and the upper mold 6 to perform a mold closing operation. Subsequently, an external device injects gas through the injection port to test the density and strength of the mold closing under pressure. The total controller 7 guides the heat-conducting heat-conducting oil through the external pipeline into the flow control valve 264 and then into the flow dividing valve 263. The heat-conducting oil is input into the pressure stabilizing valve 261 through the flow dividing valve 263 and the bifurcated pipe 262 for buffering, and then the heat-conducting oil is input into the internal cavity of the movable substrate 24 through the connecting pipe. Here, the linkage member 242 drives the connecting plate 243, the electronic refrigeration sheet 244, and the heat-conducting colloid 245 to perform a rotating motion, so that the connecting plate 243 drives the refrigerating end and the heating end of the electronic refrigeration sheet 244 to face the inner cavity flow channel of the heat-conducting plate body 241 respectively. Then, the heat-conducting oil in the inner cavity flow channel of the heat-conducting plate body 241 can be slightly adjusted by 1-3 degrees Celsius through the precise temperature control effect of the electronic refrigeration sheet 244, and the heat inside the lower mold 3 and the upper mold 6 can be efficiently exchanged, which is beneficial to slightly controlling the temperature of the lower mold 3 and the upper mold 6 by using the high heat conductivity of the heat-conducting oil. The injection molding material is introduced into the lower mold 3 and the upper mold 6 through the injection port by an external device for pressure boosting and molding, and the movable substrate 24 and the cooling assembly 26 are controlled to work again to slightly control the temperature inside the lower mold 3 and the upper mold 6 to improve the injection molding effect and reduce the formation of injection bubbles.

[0048] Through improvement, the present invention provides an injection molding device and an injection molding method for plastic fittings of automobile parts. By arranging the movable assembly 2 on the top of the injection molding table 1, the light matrix irradiation and sensing are carried out through the light sensors 272 on the sides of the movable top plate 5 and the movable substrate 24 to judge the deviation state between the lower mold 3 and the upper mold 6. The positioning assembly 27 drives the circular hole connecting plate on the side of the upper mold 6 and the conical block 274 to be in a concentric circle state through a control method of first controlling one by one and then controlling all to be energized, improving the positioning effect. By controlling the up and down adjustment movement of the adjusting member 231, the lower mold 3 is adjusted to be parallel to the upper mold 6, ensuring that the lower mold 3 is fixedly installed at a certain angle. The linkage member 242 drives the electronic refrigeration sheet 244 to rotate so that its refrigerating end and heating end face the inner cavity flow channel of the heat-conducting plate body 241 respectively. Then, the temperature of the heat-conducting oil in the inner cavity flow channel of the heat-conducting plate body 241 can be slightly adjusted through the precise temperature control effect of the electronic refrigeration sheet 244, which is beneficial to slightly controlling the temperature of the lower mold 3 and the upper mold 6 by using the high heat conductivity of the heat-conducting oil, so as to improve the injection molding effect and reduce the formation of injection bubbles.

[0049] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Moreover, the standard parts used in the present invention can all be purchased from the market. The special-shaped parts can all be customized according to the descriptions in the specification and the drawings. The specific connection manners of each part all adopt the conventional means such as bolts, rivets, welding and the like which are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection manner in the prior art, which will not be elaborated herein.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plastic parts injection molding device for automobile parts, comprising an injection molding table (1); a movable component (2) is slidably arranged inside the injection molding table (1); Features: The movable component (2) comprises a movable plate (21) slidably arranged on the bottom side of the working groove at the top of the injection molding table (1); a displacement sensor (22) having a data sensing function is fixedly installed on the top of the movable plate (21) by bolts; an adjustment component (23) having an adjustment function is fixedly installed on the four sides of the top of the movable plate (21) by bolts; a movable base plate (24) is fixedly installed on the top end of the adjustment component (23) by bolts; a level detector (25) having a data sensing function is fixedly installed on the middle side of the bottom of the movable base plate (24) by bolts; a cooling component (26) is fixedly installed on the top of the movable plate (21) by bolts, and the top side of the cooling component (26) is fixedly connected to the inner cavity through hole of the movable base plate (24); a positioning component (27) having a positioning function is fixedly installed on the side of the movable base plate (24) by bolts; A lower mold (3) is fixedly arranged on the top side of the movable component (2); a working groove is arranged on the top side of the injection molding table (1), and a filling rubber (4) is fixedly arranged on the inner wall of the working groove; a movable top plate (5) is fixedly installed on the top end of the lifting platform of the injection molding table (1) by bolts; an upper mold (6) is fixedly installed on the bottom of the movable top plate (5) by bolts; a main controller (7) is fixedly installed on the front side of the injection molding table (1) by bolts; The adjustment assembly (23) comprises an adjusting member (231) fixedly mounted on the four sides of the top of the movable plate (21) by means of bolts; a limiting sphere (232) is fixedly arranged on a fixed horizontal plate on the top side of the adjusting member (231); a coil (233) having an adsorption function is fixedly arranged on the inner wall of the limiting sphere (232); a rotating sphere (234) is rotatably arranged on the inner wall of the limiting sphere (232); a fixing screw barrel (235) is welded and fixedly mounted on the top of the rotating sphere (234); and a pressure sensor (236) having a data sensing function is fixedly mounted on the side of the adjusting member (231) by means of bolts.

2. The plastic parts injection molding device for automobile parts according to claim 1, characterized in that: The movable base plate (24) comprises a heat-conducting plate body (241) fixedly mounted on the top side of a fixed screw barrel (235); a linkage member (242) is fixedly mounted on the side of the heat-conducting plate body (241) by means of bolts; the linkage member (242) is specifically composed of a driving motor, a gear group and a mounting shell; a connecting plate (243) is plugged and fixedly mounted in the center hole of the gear group of the linkage member (242); a through groove is arranged inside the connecting plate (243), and an electric cooling plate (244) is fixedly mounted in the through groove by means of bolts; and a heat-conducting colloid (245) is adhesively mounted on the front and rear side plates of the connecting plate (243).

3. The plastic parts injection molding device for automobile parts according to claim 2, characterized in that: The cooling assembly (26) comprises a pressure-stabilizing valve (261) fixedly mounted on the top of the movable plate (21) by means of bolts, and a side pipe opening of the pressure-stabilizing valve (261) is connected to the heat-conducting plate body (241) by means of a connecting pipe; and a bifurcated pipe (262) is fixedly mounted on the side pipe opening of the pressure-stabilizing valve (261) by means of a plug.

4. The plastic parts injection molding device for automobile parts according to claim 3, characterized in that: A flow diverter valve (263) is fixedly mounted on the end of the side of the bifurcated pipe (262); a flow collecting valve (264) having a flow collecting function is fixedly mounted on the side of the flow diverter valve (263) via a connecting pipe; and an external pipe (265) is plugged and fixedly mounted on the side pipe opening of the flow collecting valve (264).

5. The plastic parts injection molding device for automobile parts according to claim 4, characterized in that: The positioning assembly (27) comprises a heat-insulating mounting plate (271) fixedly mounted on the side of the heat-conducting plate body (241) by means of bolts; a light sensor (272) having a data sensing function is fixedly mounted on the top front side of the heat-conducting plate body (241) by means of bolts.

6. The plastic parts injection molding device for automobile parts according to claim 5, characterized in that: A micro motor (273) is fixedly mounted on the rear side of the bottom of the heat conducting plate body (241) by means of bolts; a conical block (274) is plugged and fixedly mounted on the transmission shaft at the top of the micro motor (273), and the conical block (274) is rotatably arranged on the rear side of the top of the heat conducting plate body (241); a hole groove (275) is provided on the conical surface of the conical block (274), and a spiral coil and a spring are arranged inside the hole groove (275).

7. The plastic parts injection molding device for automobile parts according to claim 6, characterized in that: A slide bar (276) is slidably arranged on the outer conical surface of the conical block (274), and a slide bar (276) is slidably arranged inside the hole groove (275); the slide bar (276) is slidably arranged with a through groove on the side of the concave block (277); and a ball (278) is rollably arranged at the outer end of the slide bar (276).

8. A method for injection molding plastic parts of automobile parts, used for implementing the device for injection molding plastic parts of automobile parts as claimed in claim 7, characterized in that: The following steps are involved: Step 1: Install the lower mold (3) and the upper mold (6) on the top side of the movable component (2) and the bottom of the movable top plate (5) respectively; Step 2: collecting data on the trial mold closing action of the lower mold (3) and the upper mold (6) through the light sensor (272); Step 3: Ensure that the side connecting plate of the upper mold (6) and the conical block (274) are in a concentric circle state by using the positioning component (27) and the adjustment component (23); Step 4: adjusting the lower mold (3) by adjusting the assembly (23) so that the lower mold (3) is parallel to the upper mold (6); Step 5: After the pressure density and strength tests are performed on the lower mold (3) and the upper mold (6), the temperature of the heat transfer fluid is micro-controlled via the cooling component (26); Step 6: Injection molding to increase the pressure inside the lower mold (3) and the upper mold (6), and repeat steps 4 and 5 to control the internal temperature of the lower mold (3) and the upper mold (6) to ensure the quality of injection molding.

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