Injection molding device and method for automobile parts production

Abstract

The invention discloses an injection molding device and method for automobile parts production, which relates to the technical field of injection molding, and comprises an operating platform, wherein a horizontal moving device is fixedly connected to the top of the operating platform, an injection molding device for injection molding is fixedly connected to the output end of the horizontal moving device, and a connecting cylinder is arranged at the injection molding end of the injection molding device; a nozzle arranged at one end of the injection molding cylinder is docked with an injection molding hole for injection molding, so as to ensure that when molten material enters two molding molds through the injection molding hole, bubble generation is reduced, and production quality is improved; and when injection molding of one group of molding molds is completed, a rotating frame rotates to switch another group of molding molds for injection molding, and at this time, after a switching component drives the injection molding cylinder to switch, when one of the injection molding cylinders is injecting, the other injection molding cylinder is cleaned by a cleaning component, so as to avoid nozzle blockage, improve injection molding efficiency, and ensure that a continuous injection molding effect can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, and in particular to an injection molding device and method for producing automobile parts. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. Injection molding is suitable for mass production and molding processing fields such as complex-shaped products. In the process of automobile production, plastic parts are often manufactured, and these parts require injection molding devices, such as dashboards.

[0003] A kind of injection molding device for automobile plastic parts production disclosed in the patent application with reference publication number CN211165159U includes a device body, a first motor, a first rotating shaft, a push roller and a control panel, a first motor is installed on one side of the top of the device body, a material barrel is fixed on the top of the device body on one side of the first motor, and the output end of the first motor is installed with a first rotating shaft through a coupling, and a push roller is installed on the end of the first rotating shaft away from the first motor, and the end of the push roller away from the first rotating shaft extends to the inside of the material barrel, a mold body is fixed on the outer wall of one side of the device body, and a first mold is installed on the inner wall of one side of the mold body, and a support arm is fixed on one end of the mold body. The utility model not only reduces the labor intensity of the staff, improves the product quality of the device, but also improves the production efficiency of the device.

[0004] In the above-mentioned injection molding process, the nozzle of the injection head is often easily clogged. When clogged, production needs to be suspended and the equipment needs to be cleaned. The blockage is the result of long-term accumulation. When clogged, it will inevitably lead to defects in the injection molded product, so the injection head cannot always maintain an optimal injection molding state; and after the injection mold is docked, if the air is not discharged in time, it will cause difficulties in melt filling, resulting in insufficient injection volume and failure to fill the cavity. The gas that is not discharged smoothly will form high pressure in the cavity, and penetrate into the interior of the plastic under a certain degree of compression, causing quality defects such as voids, pores, loose tissue and silver streaks.

[0005] Therefore, it is necessary to provide an injection molding device and method for automobile parts production to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an injection molding device and method for producing automobile parts, so as to solve the problems of the defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solutions: an injection molding device for automobile parts production, comprising an operating platform, a horizontal moving device is fixedly connected to the top of the operating platform, an injection molding device for injection molding is fixedly connected to the output end of the horizontal moving device, and a connecting cylinder is provided at the injection end of the injection molding device, and further comprising:

[0008] A rotating frame fixedly connected to the top of the operating machine, wherein a rotating rod is rotatably connected inside the rotating frame, and connecting plates are fixedly connected to both sides of the rotating rod, and hydraulic telescopic rods are fixedly connected to the opposite sides of the two connecting plates, and mounting plates are fixedly connected to the opposite sides of the two hydraulic telescopic rods, and molding dies for injection molding are fixedly connected to the outer sides of the two mounting plates, and an injection hole for injection molding is arranged between the two molding dies, and two opposite sealing frames are arranged outside the injection holes, and exhaust components are arranged outside the two sealing frames for extracting gas inside the molding dies through the injection holes;

[0009] A switching plate is arranged at the front side of the connecting cylinder, and two injection cylinders for aligning the injection holes are fixedly connected inside the switching plate, and one end of each of the two injection cylinders is provided with a nozzle. A switching assembly is arranged between the switching plate and the connecting cylinder, and is used to switch different injection cylinders to be connected with the connecting cylinder;

[0010] Mounting brackets are fixedly connected to both sides of the rotating frame, and cleaning components for cleaning the nozzle of the injection molding cylinder are arranged on the outer sides of the two mounting brackets.

[0011] As a further solution of the present invention: the switching assembly includes a movable bracket arranged on the outside of the switching plate, and both sides of the top of the movable bracket are fixedly connected to the limit frame, and both sides of the switching plate are fixedly connected with protrusions, which extend into the inside of the limit frame and are slidably connected to the limit frame. A driving screw is arranged on the top of the operating machine, and the driving screw passes through the movable bracket and is connected to the movable bracket through a ball nut pair. A first motor is fixedly connected to the outside of the operating machine, and the output shaft of the first motor is fixedly connected to the driving screw, and the driving screw is rotatably connected to the operating machine.

[0012] As a further solution of the present invention: a baffle is fixedly connected to the outer side of the connecting cylinder, and the baffle is slidably connected to one end of the two injection cylinders. When the two injection cylinders are switched, the baffle blocks the other injection cylinder.

[0013] As a further solution of the present invention: the vacuum assembly includes a mounting support plate fixedly connected to the mounting plate, a fixed plate fixedly connected to the outer side of the mounting support plate, a sliding groove is opened on the outer side of the fixed plate, a moving seat is slidably connected inside the sliding groove, vertical plates are fixedly connected to both sides of the top of the moving seat, a contact wheel is rotatably connected to the top of the vertical plate for contacting the injection molding cylinder, first telescopic rods are fixedly connected to both sides of the bottom of the moving seat, connecting plates are fixedly connected to the bottoms of the two first telescopic rods, and the two connecting plates are fixedly connected to the sealing frame.

[0014] As a further solution of the present invention: the air extraction assembly also includes a mounting support plate fixedly connected to the top of the mounting support plate, a pulling plate slidably connected to the inside of the fixed cylinder, a first spring fixedly connected between the pulling plate and the bottom end of the fixed cylinder, a foldable air bag fixedly connected between the pulling plate and the top end of the fixed cylinder, a suction pipe fixedly connected to the bottom of the foldable air bag, the suction pipe passes through the fixed cylinder and extends to the inside of the sealing frame, for exhausting air from the inside of the molding mold cavity, an air outlet pipe fixedly connected to the outside of the foldable air bag, the air outlet pipe extends to the outside of the fixed cylinder, a one-way air outlet valve is installed on the outside of the air outlet pipe, a one-way air inlet valve is installed on the outside of the suction pipe, a second telescopic rod is fixedly connected to the outside of the movable seat, an L-shaped fixed plate is fixedly connected to the outside of the second telescopic rod, a push rod is fixedly connected to the outside of the L-shaped fixed plate, the push rod passes through the top of the fixed cylinder and is fixedly connected to the pulling plate, and the foldable air bag is sleeved on the outside of the push rod.

[0015] As a further solution of the present invention: the cleaning assembly includes a fixed plate fixedly connected to the outside of the mounting bracket, a clearing rod is rotatably connected to the outside of the mounting bracket, the clearing rod passes through the fixed plate and is rotatably connected to the fixed plate, the outside of the fixed plate is fixedly connected to a driving motor, the output shaft of the driving motor is fixedly connected to a second gear, the outside of the clearing rod is fixedly connected to a first gear, and the first gear is meshingly connected to the second gear.

[0016] As a further solution of the present invention: the cleaning assembly also includes a support plate fixedly connected to the outer side of one end of the dredging rod, one side of the support plate is fixedly connected with an airbag and is sleeved on the outer side of the dredging rod, the outer side of the dredging rod is sleeved with a sliding plate, a plurality of connecting belts are fixedly connected between the sliding plate and one end of the dredging rod, a plurality of limit plates are fixedly connected to the side of the support plate close to the mounting bracket, which are used to guide and limit the connecting belts, a plurality of second springs are fixedly connected between the sliding plate and the fixed plate, a collection groove is fixedly connected to the bottom of the mounting bracket, and the collection groove is arranged below the dredging rod.

[0017] As a further solution of the present invention: a gas delivery device is fixedly connected to the outside of the mounting bracket, a gas delivery end of the gas delivery device is fixedly connected to an air pipe, the air pipe is rotatably connected to the dredging rod, a flow groove is opened inside the dredging rod, and is connected to the airbag.

[0018] A method for injection molding for automobile parts production is also provided, comprising the following steps:

[0019] Step 1: When the injection molding device injects the molten material into one of the injection molding cylinders connected thereto through the connecting cylinder, and pushes it through the horizontal moving device, the nozzle of the injection molding cylinder contacts the molding mold in one of the groups;

[0020] Step 2: When the injection molding cylinder contacts the injection molding hole on the molding die, the vacuum assembly is squeezed by the injection molding cylinder to extract the air from the inner cavity of the molding die through the sealing frame, and then the nozzle provided at one end of the injection molding cylinder is connected to the injection molding hole for injection molding;

[0021] Step 3: When the injection molding of one group of molding molds is completed, the rotating frame rotates to switch to another group of molding molds for injection molding. At this time, the switching component drives the injection molding cylinder to switch. When one of the injection molding cylinders is injecting, the other injection molding cylinder is cleaned by the cleaning component to avoid nozzle clogging.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The nozzle set at one end of the injection cylinder is connected with the injection hole for injection molding, so as to ensure that when the molten material enters the two molding molds through the injection hole, the generation of bubbles is reduced, the production quality is improved, and when one group of molding molds is completed, the rotating frame rotates to switch the other group of molding molds for injection molding. At this time, after the switching component drives the injection cylinder to switch, when one of the injection cylinders is injecting, the other injection cylinder is cleaned by the cleaning component to avoid nozzle clogging, improve injection molding efficiency, and ensure that the effect of continuous injection molding can be achieved.

[0024] 2. When the docked injection molding cylinder is used to inject a new set of molding molds, the used injection molding cylinder is close to the cleaning component with one end of the switching plate, and the injection molding cylinder is cleaned by the cleaning component. The switching component cooperates with the cleaning component to keep the injection molding cylinder in an efficient injection molding state at all times, avoiding the need for personnel to clean the nozzle of the injection molding cylinder regularly.

[0025] 3. The airbag squeezes the connecting belt into contact with the inner wall of the nozzle. A scraper strip is provided on the outside of the connecting belt. When the dredging rod rotates, the connecting belt thoroughly cleans the inner wall of the nozzle. When the injection molding cylinder retreats, the airbag is in an expanded state, and the scraped excess liquid is pushed out and collected through the collection tank.

[0026] 4. The L-shaped fixed plate drives the pulling plate to descend through the push rod fixedly connected, so that the foldable airbag can be unfolded to inhale air, and the sealing frame is inhaled through the suction pipe, and the air is exhausted through the injection hole. When the movable seat continues to descend, the connecting plate is driven to move by the first telescopic rod, and the connecting plate drives the sealing frame to move, so that the nozzle of the injection cylinder is quickly docked with the injection hole, so as to spray the plastic and achieve the exhaust effect of the molding mold. When the injection cylinder is removed, the first spring pushes the pulling plate to rise quickly, so that the sealing frame blocks the injection hole again to prevent external dust from entering and improve the injection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the rotating frame of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the switching component of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0033] Figure 6 It is a schematic diagram of the airbag structure of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the mounting plate and the forming mold of the present invention;

[0035] Figure 8 It is a schematic diagram of the injection hole structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the cross-sectional structure of the fixing tube of the present invention;

[0037] Fig.10 It is a schematic diagram of the push rod structure of the present invention.

[0038] In the figure: 1, operating machine; 2, horizontal moving device; 3, injection molding device; 301, connecting cylinder; 401, switching plate; 402, injection molding cylinder; 403, baffle; 404, driving screw; 405, moving bracket; 406, limit frame; 407, first motor; 5, rotating frame; 501, rotating rod; 502, connecting plate; 601, mounting plate; 602, molding mold; 603, hydraulic telescopic rod; 604, injection molding hole; 701, sealing frame; 702, fixing plate; 703, sliding groove; 704, moving seat; 705, vertical plate; 706, contact wheel; 707, connecting plate ;708, first telescopic rod; 709, fixed tube; 7091, L-shaped fixed plate; 7092, foldable airbag; 7093, suction pipe; 7094, first spring; 7095, second telescopic rod; 7096, push rod; 7097, pulling plate; 7010, mounting support plate; 8, mounting bracket; 801, dredging rod; 803, airbag; 804, support plate; 805, connecting belt; 806, sliding plate; 807, second spring; 808, collecting trough; 809, first gear; 810, second gear; 811, air pipe; 812, gas delivery device; 813, fixed plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 10 As shown, an injection molding device for automobile parts production includes the following embodiments:

[0041] like Figures 1 to 10 As shown, embodiment 1 includes an operating platform 1, a horizontal moving device 2 is fixedly connected to the top of the operating platform 1, an injection molding device 3 for injection molding is fixedly connected to the output end of the horizontal moving device 2, the horizontal moving device 2 uses a hydraulic telescopic rod to cooperate with the slide table, and the injection molding device 3 is installed on the slide table. The injection end of the injection molding device 3 is provided with a connecting cylinder 301, and also includes:

[0042] A rotating frame 5 is fixedly connected to the top of the operating machine 1, and a rotating rod 501 is rotatably connected inside the rotating frame 5. A motor is installed on one side of the rotating frame 5, and the output shaft of the motor is fixedly connected to the rotating rod 501. Connecting plates 502 are fixedly connected on both sides of the rotating rod 501. The two connecting plates 502 are fixedly connected to the opposite sides of the hydraulic telescopic rods 603. The two opposite sides of the hydraulic telescopic rods 603 are fixedly connected to the mounting plates 601. The outer sides of the two mounting plates 601 are fixedly connected to the molding molds 602 for injection molding. An injection hole 604 for injection molding is provided between the two molding molds 602. Two opposite sealing frames 701 are provided on the outer sides of the injection holes 604. The outer sides of the two sealing frames 701 are provided with exhaust components for extracting the gas inside the molding mold 602 through the injection holes 604.

[0043] A switching plate 401 is arranged at the front side of the connecting cylinder 301, and two injection cylinders 402 for aligning with the injection holes 604 are fixedly connected inside the switching plate 401, and one end of each of the two injection cylinders 402 is provided with a nozzle. A switching component is arranged between the switching plate 401 and the connecting cylinder 301, and is used to switch different injection cylinders 402 to be connected with the connecting cylinder 301;

[0044] Mounting brackets 8 are fixedly connected to both sides of the rotating frame 5 , and cleaning components for cleaning the nozzle of the injection cylinder 402 are arranged on the outer sides of the two mounting brackets 8 .

[0045] In a specific implementation, when the injection molding device 3 injects the molten material into one of the injection molding cylinders 402 connected thereto through the connecting cylinder 301, and pushes the horizontal moving device 2 to make the nozzle of the injection molding cylinder 402 contact with the molding mold 602 in one group, when the injection molding cylinder 402 contacts the injection hole 604 opened on the molding mold 602, the air extraction component is squeezed by the injection molding cylinder 402 to extract the air from the inner cavity of the molding mold 602 through the sealing frame 701, and then the air is extracted from the inner cavity of the molding mold 602 through the nozzle set at one end of the injection molding cylinder 402 and the injection hole 604. Butt injection molding is performed to ensure that when the molten material enters the two molding molds 602 through the injection hole 604, the generation of bubbles is reduced, thereby improving the production quality. When the injection molding of one group of molding molds 602 is completed, the rotating frame 5 rotates to switch the other group of molding molds 602 for injection molding. At this time, after the switching component drives the injection molding cylinder 402 to switch, when one of the injection molding cylinders 402 is injecting, the other injection molding cylinder 402 is cleaned by the cleaning component to avoid nozzle clogging, improve injection molding efficiency, and ensure that the effect of continuous injection molding can be achieved.

[0046] like Figure 3 to Figure 4As shown, embodiment 2: the switching component includes a mobile bracket 405 arranged on the outside of the switching plate 401, and both sides of the top of the mobile bracket 405 are fixedly connected to the limit frame 406, and both sides of the switching plate 401 are fixedly connected with protrusions, which extend to the inside of the limit frame 406 and are slidably connected to the limit frame 406. A driving screw 404 is arranged on the top of the operating machine 1, and the driving screw 404 passes through the mobile bracket 405 and is connected to the mobile bracket 405 through a ball nut pair. A first motor 407 is fixedly connected to the outside of the operating machine 1, and the output shaft of the first motor 407 is fixedly connected to the driving screw 404, and the driving screw 404 is rotatably connected to the operating machine 1.

[0047] A baffle 403 is fixedly connected to the outside of the connecting cylinder 301 , and the baffle 403 is slidably connected to one end of the two injection cylinders 402 . When the two injection cylinders 402 are switched, the baffle 403 blocks the other injection cylinder 402 .

[0048] In specific implementation, when the two injection molding cylinders 402 are switched, the first motor 407 is started, and the first motor 407 drives the driving screw 404 to rotate. When the driving screw 404 rotates, it drives the movable bracket 405 connected to the outside by the ball nut to move horizontally, so that the used injection molding cylinder 402 on the switching plate 401 is switched to the side of the cleaning component on the other side of the rotating frame 5. When the docked injection molding cylinder 402 re-injects a new set of molding molds 602, as one end of the switching plate 401, the used injection molding cylinder 402 approaches the cleaning component, and the injection molding cylinder 402 is cleaned by the cleaning component. The switching component cooperates with the cleaning component to keep the injection molding cylinder 402 in an efficient injection molding state at all times, avoiding the need for personnel to regularly clean the nozzle of the injection molding cylinder 402.

[0049] like Figures 5 and 6 As shown, embodiment three: the cleaning component includes a fixed plate 813 fixedly connected to the outer side of the mounting bracket 8, the outer side of the mounting bracket 8 is rotatably connected to the clearing rod 801, the clearing rod 801 passes through the fixed plate 813 and is rotatably connected to the fixed plate 813, the outer side of the fixed plate 813 is fixedly connected to the driving motor, the output shaft of the driving motor is fixedly connected to the second gear 810, the outer side of the clearing rod 801 is fixedly connected to the first gear 809, and the first gear 809 is meshingly connected to the second gear 810.

[0050] During specific implementation, when the injection cylinder 402 moves toward the rotating frame 5 along with the switching plate 401, the unblocking rod 801 is inserted into the nozzle at one end of the injection cylinder 402, and then the driving motor is started, the driving motor drives the second gear 810, the second gear 810 drives the meshingly connected first gear 809, and the first gear 809 drives the fixedly connected unblocking rod 801 to rotate, thereby providing the unblocking effect of the unblocking rod 801.

[0051] like Figure 6 As shown, in this embodiment: the cleaning component also includes a support plate 804 fixedly connected to the outer side of one end of the dredging rod 801, one side of the support plate 804 is fixedly connected with an airbag 803 and is sleeved on the outer side of the dredging rod 801, a sliding plate 806 is sleeved on the outer side of the dredging rod 801, and a plurality of connecting belts 805 are fixedly connected between the sliding plate 806 and one end of the dredging rod 801, a plurality of limiting plates are fixedly connected to the side of the support plate 804 close to the mounting bracket 8, which are used to guide and limit the connecting belts 805, a plurality of second springs 807 are fixedly connected between the sliding plate 806 and the fixed plate 813, and a collecting groove 808 is fixedly connected to the bottom of the mounting bracket 8, and the collecting groove 808 is arranged below the dredging rod 801.

[0052] An air delivery device 812 is fixedly connected to the outside of the mounting bracket 8, and an air delivery end of the air delivery device 812 is fixedly connected to an air pipe 811, which is rotatably connected to the dredging rod 801. A flow groove is provided inside the dredging rod 801 and is connected to the air bag 803.

[0053] During specific implementation, the support plate 804 enters the nozzle of the injection cylinder 402 along with the dredging rod 801. At this time, the gas delivery device 812 inflates the flow groove opened inside the dredging rod 801 through the air pipe 811, and allows the gas to rush into the airbag 803, thereby expanding the airbag 803. After the airbag 803 expands, it fits with the inner wall of the nozzle, and the connecting belt 805 is arranged on the outside of the airbag 803. The airbag 803 contacts the inner wall of the nozzle through squeezing. A scraping strip is arranged on the outside of the connecting belt 805. When the dredging rod 801 rotates, the connecting belt 805 thoroughly cleans the inner wall of the nozzle, and when the injection cylinder 402 retreats, the airbag 803 is in an expanded state, and the scraped residual liquid is pushed out and collected through the collection groove 808.

[0054] like Figures 7 to 10 As shown, embodiment four: the vacuum assembly includes a mounting support plate 7010 fixedly connected to the mounting plate 601, a fixed plate 702 is fixedly connected to the outer side of the mounting support plate 7010, a sliding groove 703 is provided on the outer side of the fixed plate 702, a moving seat 704 is slidably connected inside the sliding groove 703, vertical plates 705 are fixedly connected to both sides of the top of the moving seat 704, a contact wheel 706 is rotatably connected to the top of the vertical plate 705 for contacting the injection cylinder 402, first telescopic rods 708 are fixedly connected to both sides of the bottom of the moving seat 704, connecting plates 707 are fixedly connected to the bottom of the two first telescopic rods 708, and the two connecting plates 707 are fixedly connected to the sealing frame 701.

[0055] The vacuum assembly also includes a mounting support plate 7010, the top of which is fixedly connected to a fixed cylinder 709, a pulling plate 7097 is slidably connected inside the fixed cylinder 709, a first spring 7094 is fixedly connected between the pulling plate 7097 and the bottom end of the fixed cylinder 709, a foldable airbag 7092 is fixedly connected between the pulling plate 7097 and the top end of the fixed cylinder 709, and a suction pipe 7093 is fixedly connected to the bottom of the foldable airbag 7092, which passes through the fixed cylinder 709 and extends to the inside of the sealing frame 701, and is used to evacuate the inside of the cavity of the molding mold 602. An air outlet pipe is fixedly connected to the outside of the foldable airbag 7092, the air outlet pipe extends to the outside of the fixed tube 709, a one-way air outlet valve is installed on the outside of the air outlet pipe, a one-way air inlet valve is installed on the outside of the air intake pipe 7093, a second telescopic rod 7095 is fixedly connected to the outside of the movable seat 704, an L-shaped fixed plate 7091 is fixedly connected to the outside of the second telescopic rod 7095, a push rod 7096 is fixedly connected to the outside of the L-shaped fixed plate 7091, the push rod 7096 passes through the top of the fixed tube 709 and is fixedly connected to the pulling plate 7097, and the foldable airbag 7092 is sleeved on the outside of the push rod 7096.

[0056] In specific implementation, when the two molding dies 602 are closed, there is air inside the injection cavity inside the molding dies 602. If the air is not discharged in time, it will cause difficulty in filling the melt, resulting in insufficient injection volume and failure to fill the cavity. The gas that is not discharged smoothly will form high pressure in the cavity and penetrate into the interior of the plastic under a certain degree of compression, causing quality defects such as voids, pores, loose tissue and silver streaks. Therefore, in this solution, the mounting support plate 7010 is fixed to the outside of the mounting plate 601, and the sealing frame 701 is located at the injection hole 604. The two sealing frames 701 seal the injection hole 604. When the injection cylinder 402 approaches, it pushes the contact wheel 706 to contact the vertical plate 705, so that the contact wheel 706 pushes the vertical plate 705 to descend. When the vertical plate 705 pushes the movable seat 704 to descend along the sliding groove 703, when the movable seat 704 descends. , the L-shaped fixing plate 7091 is driven to descend by the second telescopic rod 7095, and the L-shaped fixing plate 7091 drives the pulling plate 7097 to descend through the fixedly connected pushing rod 7096, so that the foldable airbag 7092 is unfolded and inhaled, and the sealing frame 701 is inhaled through the suction pipe 7093, and the air is exhausted through the injection hole 604. When the movable seat 704 continues to descend, the connecting plate 707 is driven to move by the first telescopic rod 708, and the connecting plate 707 drives the sealing frame 701 to move, so that the nozzle of the injection cylinder 402 is quickly docked with the injection hole 604, so as to perform spraying, so as to achieve the exhaust effect of the molding mold 602. When the injection cylinder 402 is removed, the first spring 7094 pushes the pulling plate 7097 to rise quickly, so that the sealing frame 701 blocks the injection hole 604 again to prevent external dust from entering and improve the injection quality.

[0057] A method for injection molding for automobile parts production is also provided, comprising the following steps:

[0058] Step 1: When the injection device 3 injects the molten material into one of the injection cylinders 402 connected thereto through the connecting cylinder 301, and pushes it through the horizontal moving device 2, the nozzle of the injection cylinder 402 contacts with the molding mold 602 in one group;

[0059] Step 2: When the injection cylinder 402 contacts the injection hole 604 provided on the molding die 602, the injection cylinder 402 is squeezed to cause the exhaust assembly to extract the air from the inner cavity of the molding die 602 through the sealing frame 701, and then the nozzle provided at one end of the injection cylinder 402 is connected to the injection hole 604 for injection molding;

[0060] Step 3, when one group of molding molds 602 is completed, the rotating frame 5 rotates to switch to another group of molding molds 602 for injection molding. At this time, the switching component drives the injection molding cylinder 402 to switch. When one of the injection molding cylinders 402 is injecting, the other injection molding cylinder 402 is cleaned by the cleaning component to avoid nozzle clogging.

[0061] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for automobile parts production, comprising an operating platform (1), wherein a horizontal moving device (2) is fixedly connected to the top of the operating platform (1), an injection molding device (3) for injection molding is fixedly connected to the output end of the horizontal moving device (2), and a connecting tube (301) is provided at the injection end of the injection molding device (3), characterized in that: Also includes: A rotating frame (5) fixedly connected to the top of the operating machine (1), wherein a rotating rod (501) is rotatably connected inside the rotating frame (5), and connecting plates (502) are fixedly connected to both sides of the rotating rod (501), and hydraulic telescopic rods (603) are fixedly connected to opposite sides of the two connecting plates (502), and mounting plates (601) are fixedly connected to one side of two opposite hydraulic telescopic rods (603), and molding dies (602) for injection molding are fixedly connected to the outer sides of the two mounting plates (601), and an injection hole (604) for injection molding is provided between the two molding dies (602), and two opposite sealing frames (701) are provided outside the injection holes (604), and exhaust components are provided outside the two sealing frames (701) for exhausting gas inside the molding dies (602) through the injection holes (604); A switching plate (401) is arranged on the front side of the connecting cylinder (301), wherein two injection cylinders (402) for aligning with the injection holes (604) are fixedly connected inside the switching plate (401), and one end of each of the two injection cylinders (402) is provided with a nozzle, and a switching component is arranged between the switching plate (401) and the connecting cylinder (301) for switching different injection cylinders (402) to be connected to the connecting cylinder (301); The rotating frame (5) is fixedly connected to mounting brackets (8) on both sides, and cleaning components for cleaning the nozzle of the injection molding cylinder (402) are arranged on the outside of the two mounting brackets (8); The switching assembly comprises a movable bracket (405) arranged on the outside of the switching plate (401), both sides of the top of the movable bracket (405) are fixedly connected to the limit frame (406), both sides of the switching plate (401) are fixedly connected to protrusions, the protrusions extend into the limit frame (406) and are slidably connected to the limit frame (406), a driving screw (404) is arranged on the top of the operating platform (1), the driving screw (404) passes through the movable bracket (405) and is connected to the movable bracket (405) via a ball nut pair, a first motor (407) is fixedly connected to the outside of the operating platform (1), the output shaft of the first motor (407) is fixedly connected to the driving screw (404), and the driving screw (404) is rotatably connected to the operating platform (1); The vacuum assembly comprises a mounting support plate (7010) fixedly connected to the mounting plate (601), a fixed plate (702) being fixedly connected to the outer side of the mounting support plate (7010), a sliding groove (703) being provided on the outer side of the fixed plate (702), a movable seat (704) being slidably connected inside the sliding groove (703), vertical plates (705) being fixedly connected to both sides of the top of the movable seat (704), a contact wheel (706) being rotatably connected to the top of the vertical plate (705) for contacting the injection molding cylinder (402), first telescopic rods (708) being fixedly connected to both sides of the bottom of the movable seat (704), connecting plates (707) being fixedly connected to the bottoms of the two first telescopic rods (708), and the two connecting plates (707) being fixedly connected to the sealing frame (701); The vacuum assembly also includes a mounting support plate (7010) having a fixed cylinder (709) fixedly connected to the top thereof, a pulling plate (7097) slidably connected inside the fixed cylinder (709), a first spring (7094) fixedly connected between the pulling plate (7097) and the bottom end of the fixed cylinder (709), a foldable airbag (7092) fixedly connected between the pulling plate (7097) and the top end of the fixed cylinder (709), a suction pipe (7093) fixedly connected to the bottom of the foldable airbag (7092), the suction pipe (7093) passing through the fixed cylinder (709) and extending to the inside of the sealing frame (701), and being used to evacuate air from the inside of the cavity of the molding mold (602). The outer side of the foldable airbag (7092) is fixedly connected to an air outlet pipe, the air outlet pipe extends to the outer side of the fixed tube (709), the outer side of the air outlet pipe is installed with a one-way air outlet valve, the outer side of the air intake pipe (7093) is installed with a one-way air intake valve, the outer side of the movable seat (704) is fixedly connected to a second telescopic rod (7095), the outer side of the second telescopic rod (7095) is fixedly connected to an L-shaped fixed plate (7091), the outer side of the L-shaped fixed plate (7091) is fixedly connected to a push rod (7096), the push rod (7096) passes through the top of the fixed tube (709) and is fixedly connected to the pulling plate (7097), and the foldable airbag (7092) is sleeved on the outer side of the push rod (7096); The cleaning assembly comprises a fixed disk (813) fixedly connected to the outside of the mounting bracket (8); a dredging rod (801) is rotatably connected to the outside of the mounting bracket (8); the dredging rod (801) passes through the fixed disk (813) and is rotatably connected to the fixed disk (813); a driving motor is fixedly connected to the outside of the fixed disk (813); an output shaft of the driving motor is fixedly connected to a second gear (810); a first gear (809) is fixedly connected to the outside of the dredging rod (801); and the first gear (809) is meshingly connected to the second gear (810); The cleaning assembly further comprises a support plate (804) fixedly connected to the outer side of one end of the dredging rod (801); an air bag (803) is fixedly connected to one side of the support plate (804) and is sleeved on the outer side of the dredging rod (801); a sliding plate (806) is sleeved on the outer side of the dredging rod (801); a plurality of connecting belts (805) are fixedly connected between the sliding plate (806) and one end of the dredging rod (801); a plurality of limiting plates are fixedly connected to one side of the support plate (804) close to the mounting bracket (8) for guiding and limiting the connecting belts (805); a plurality of second springs (807) are fixedly connected between the sliding plate (806) and the fixed plate (813); a collecting groove (808) is fixedly connected to the bottom of the mounting bracket (8); and the collecting groove (808) is arranged below the dredging rod (801).

2. The injection molding device for automobile parts production according to claim 1, characterized in that: A baffle (403) is fixedly connected to the outside of the connecting cylinder (301), and the baffle (403) is slidably connected to one end of the two injection cylinders (402). When the two injection cylinders (402) are switched, the baffle (403) blocks the other injection cylinder (402).

3. The injection molding device for automobile parts production according to claim 1, characterized in that: An air delivery device (812) is fixedly connected to the outside of the mounting bracket (8); an air delivery end of the air delivery device (812) is fixedly connected to an air pipe (811); the air pipe (811) is rotatably connected to a dredging rod (801); a flow groove is provided inside the dredging rod (801) and is connected to an air bag (803).

4. An injection molding method for automobile parts production, applicable to an injection molding device for automobile parts production as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: The injection molding device (3) injects the molten material into one of the injection molding cylinders (402) connected thereto through the connecting cylinder (301), and pushes the injection molding cylinder (402) through the horizontal moving device (2), so that the nozzle of the injection molding cylinder (402) contacts the molding mold (602) in one of the groups; Step 2: When the injection molding cylinder (402) contacts the injection molding hole (604) provided on the molding die (602), the injection molding cylinder (402) is used to squeeze the air extraction component, and the air in the inner cavity of the molding die (602) is extracted through the sealing frame (701), and then the nozzle provided at one end of the injection molding cylinder (402) is connected to the injection molding hole (604) for injection molding; Step 3: When the injection molding of one group of molding dies (602) is completed, the rotating frame (5) rotates to switch to another group of molding dies (602) for injection molding. At this time, the switching component drives the injection molding cylinder (402) to switch. When one of the injection molding cylinders (402) is injecting, the other injection molding cylinder (402) is cleaned by the cleaning component to avoid nozzle clogging.

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