Injection molding die for automobile plastic parts and molding method thereof

Abstract

The present invention discloses an injection molding mold for automobile plastic parts in the field of injection molding mold technology. A movable mold is provided on the left side of an injection molding machine, a fixed mold is provided on the right side of the injection molding machine, a motor is provided on the front side of the fixed mold, an output end of the motor is fixedly connected to a rotating cylinder, a driving assembly is fixedly connected to the rear side of the movable mold for cleaning the fixed mold, a cleaning assembly is fixedly connected to the right side of the driving assembly for dehumidifying the surface of the fixed mold, a maintenance assembly is provided on the upper part of the fixed mold for maintaining the equipment, and the cleaning assembly is rotated so as to perform double cleaning in the process of moving back to its position and moving to the fixed mold, thereby avoiding the situation where some materials adhere to the cleaning assembly, resulting in incomplete cleaning of the fixed mold and flow marks on the molded lampshade, and avoiding the presence of residual materials on the fixed mold during the previous injection molding and secondary fusion with the materials injected next time.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding dies, in particular to an injection molding die for automobile plastic parts and a molding method thereof. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the required products by methods such as injection molding, blow molding, extrusion, die-casting, forging, forming, smelting and stamping. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. In the processing of automobile lampshades, lampshade molds are needed. When the existing mold is used for injection molding production, the movable platen and the fixed platen of the mold need to be closed together, and the molding raw material is injected into the mold cavity. After extrusion and high temperature, the injection molded material is processed into the shape of the lampshade.

[0003] The lampshades of the rear turn signals of vans currently manufactured are square. When plastic granules are hot-melted and injected into the mold head, the plastic granules injected by the fixed mold plate will be squeezed by the movable mold plate, causing the lampshade to be extruded and formed. After being used many times, the molding material on the fixed mold plate may not be completely detached, resulting in some small sticky scraps on the edges of the fixed mold plate. If this is not removed, during the next lampshade injection molding, when the polymer after the granules are melted flows to the part with the scraps that have not been cleaned up, the plastic granules in a fluid state will stick to the scraps. Because the temperatures of the two are different and because the materials are not extruded at the same time, the degree of melting will be different, causing the formed lampshade to have flow marks on the edges. In addition, because the lampshade has high requirements for light transmittance, the appearance of flow marks is a defective product.

[0004] Based on this, the present invention designs an injection molding mold for automotive plastic parts and a molding method thereof to solve the problem that the edges of the fixed mold are adhered to and the scraps of material particles that have not been completely discharged are melted and fixed. If they are not cleaned in time, flow marks will appear on the edges of the lampshade produced next time, and the lampshade will become a defective product. Summary of the Invention

[0005] The object of the present invention is to provide an injection molding die for automobile plastic parts and a molding method thereof, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An injection molding mold for automotive plastic parts, comprising an injection molding machine, a movable mold, a fixed mold, a motor, and a rotating drum. The movable mold is provided on the left side of the injection molding machine, the fixed mold is provided on the right side of the injection molding machine, the motor is provided on the front side of the fixed mold, the output end of the motor is fixedly connected to the rotating drum, the rear side of the movable mold is fixedly connected to a drive assembly for cleaning the fixed mold, the right side of the drive assembly is fixedly connected to a cleaning assembly for dehumidifying the surface of the fixed mold, and the upper part of the fixed mold is provided with a maintenance assembly for maintaining the equipment;

[0008] The driving assembly includes: a connecting rod, a rack, a fixed protrusion, a square frame, a track frame, a transmission roller, a gear 1, a sliding frame, a sliding rod, a sliding pin, a limiting part, a sliding screw, and a friction clutch. The rear side of the movable mold is fixedly connected to the lower part of the connecting rod, the upper part of the connecting rod is fixedly connected to the left end of the rack, the right side of the rack is slidably connected to the upper part of the fixed protrusion, the lower part of the fixed protrusion is fixedly connected to the rear side of the square frame, the lower part of the rack is meshed and connected to gear 1, the front side of the gear 1 is fixedly connected to the rear end of the fixed protrusion, the end of the transmission roller passes through and is rotatably connected to the left side of the square frame, The right end of the square frame is fixedly connected to the right side of the injection molding machine, the left end of the square frame is fixedly connected to the end of the track frame, the slide groove of the track frame is slidably connected to the upper part of the sliding frame, the left side of the sliding frame is slidably connected to the left side of the sliding rod, the rear side of the sliding rod is slidably connected to the rear side of the sliding frame, the right side of the sliding rod is fixedly connected to the rear side of the cleaning assembly, the front side of the sliding rod is slidably connected to the middle part of the sliding pin, the right side of the sliding pin is slidably connected to the upper part of the sliding screw rod, the front end of the sliding screw rod is fixedly connected to the end of the limiting part, and the front part of the sliding screw rod is fixedly connected to the end of the friction clutch;

[0009] The sliding frame further comprises: a fixed track frame, a fixed cylinder, a fixed column, a fixed frame, a cylindrical block, and a chimeric block, the left side of the upper portion of the sliding frame is fixedly connected to the end portion of the chimeric block, the chimeric block is slidably connected to the groove of the track frame, the right side of the upper portion of the sliding frame is fixedly connected to one end of the cylindrical block, and the other end of the cylindrical block is slidably connected to the groove of the transmission roller, the lower end of the sliding frame is fixedly connected to the lower end of the fixed track frame, the lower end of the fixed track frame is fixedly connected to the left side of the fixed cylinder, the middle portion of the fixed cylinder is fixedly connected to the end portion of the fixed column, the upper end of the fixed column is slidably connected to the rear side of the sliding rod, the front side of the fixed cylinder is fixedly connected to one end of the fixed frame, and the other end of the fixed frame penetrates and is rotatably connected to the end portion of the sliding screw rod;

[0010] The sliding screw further comprises: a wire drum, a wire rod, a circular plate, and an elastic column 1, wherein the lower end of the sliding screw is fixedly connected to the wire drum, the wire drum is meshed with the wire rod, the rear end of the wire rod is rotatably connected to the rear side of the sliding frame, the front end of the wire rod is fixedly connected to the rear end of the circular plate, the circular plate is slidably connected to the rear end of the elastic column 1, the front end of the elastic column 1 is fixedly connected to the rear end of the friction clutch, and the right side of the sliding screw is fixedly connected to the front part of the cleaning assembly;

[0011] The friction clutch further comprises: an articulated rod, a friction slider, and a top plate. The front end of the friction clutch is hinged with a plurality of articulated rods, the ends of the articulated rods are rotatably connected to the friction sliders, and the friction sliders are slidably connected to the groove in the middle of the top plate.

[0012] The cleaning assembly includes: an arc-shaped trigger frame, a second elastic column, a transverse wiping member, a wiping head, a fixed water-absorbing roller, and a fixed cleaning shovel. The end of the arc-shaped trigger frame is fixedly connected to the right side of the injection molding machine, the front side of the arc-shaped trigger frame is provided with a second elastic column, the lower part of the movable mold is slidably connected to the groove of the limiting part, the end of the transverse wiping member is fixedly connected to the middle part of the sliding screw, the other end of the transverse wiping member is rotatably connected to the wiping head, the rear side of the sliding rod is fixedly connected to the end of the fixed water-absorbing roller, the lower part of the fixed water-absorbing roller is correspondingly provided with a fixed cleaning shovel fixedly connected to the rear side of the sliding rod, a plurality of fixed water-absorbing rollers are fixedly connected to the right side of the sliding screw, and a plurality of fixed cleaning shovels are fixedly connected to the right side of the sliding screw;

[0013] The second elastic column further comprises: a trigger frame, a fixed top frame, a connecting block, a first water-absorbing roller, and a first cleaning shovel. The end of the second elastic column is fixedly connected to the left side of the connecting block, the right side of the connecting block is fixedly connected to the end of the first water-absorbing roller, the right side of the connecting block is fixedly connected to the end of the first cleaning shovel, the upper part of the connecting block is fixedly connected to the lower end of the trigger frame, and the upper end of the trigger frame is fixedly connected to the end of the fixed top frame.

[0014] The maintenance component includes: a transmission belt, a bevel gear 2, a limiting frame, a brush roller 1, a gear 2, a bevel gear 1, a brush roller 2, a gear 3, a brush roller 3, and a gear 4, the upper end of the transmission belt is meshed and connected to the right side of the driving assembly, the lower end of the transmission belt is meshed and connected to the end of the bevel gear 2, the bevel gear 2 penetrates and is rotatably connected to the rear side of the limiting frame, the end of the limiting frame is fixedly connected to the rear side of the fixed mold, the bevel gear 2 is meshed and connected to the bevel gear 1, the end of the bevel gear 1 is fixedly connected to the middle of the gear 2, the gear 2 is fixedly connected to the end of the brush roller 1, the brush roller 1 penetrates and is rotatably connected to the limiting frame, the gear 2 is meshed and connected to the gear 3, the gear 3 is fixedly connected to the end of the brush roller 2, the brush roller 2 penetrates and is rotatably connected to the limiting frame, the gear 3 is meshed and connected to the gear 4, the gear 4 is fixedly connected to the end of the brush roller 3, and the brush roller 3 penetrates and is rotatably connected to the limiting frame;

[0015] For example, in the above-mentioned method for injection molding of automobile plastic parts, the specific steps for using the mold are as follows:

[0016] Step 1: When the movable mold leaves the fixed mold with the injection-molded lampshade, the movable mold drives the driving component to move. At this time, the driving component drives the cleaning component to move, and the movement of the driving component rotates synchronously with the rotating cylinder;

[0017] Step 2: The driving component drives the cleaning component to move so that the cleaning component can clean the sticking scraps of the fixed mold;

[0018] Step 3: When the movable mold is again engaged with the fixed mold for injection molding, the movable mold will reset the driving component. At this time, the maintenance component will be driven by the driving component to rotate, thereby cleaning the cleaning component to prevent the material from sticking to the cleaning component.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides a driving assembly so that when the cleaning assembly is driven by the driving assembly and passes the rotating maintenance assembly during movement, the maintenance assembly will clean the cleaning assembly again, thereby preventing the cleaning assembly that has not been cleaned from directly contacting the fixed mold and causing contamination. In addition, the cleaning assembly is driven to clean the fixed mold through the friction contact between the friction clutch and the rotating drum. This ensures that the cleaning assembly can clean the fixed mold only when the movable mold is fully opened and closed. This prevents the lampshade from being removed from the movable mold due to the small opening and closing distance between the movable mold and the fixed mold, and the movement of the cleaning assembly will not collide with the worker who is removing the lampshade, thereby improving the working safety environment.

[0021] 2. The cleaning assembly of the present invention can clean the side edges and corners of the fixed mold after each demolding of the fixed mold and the movable mold, preventing the material from adhering to the fixed mold and removing the water mist caused by the temperature difference on the surface of the fixed mold, thus avoiding the occurrence of flow marks on the lampshade produced when the movable mold and the fixed mold are combined next time;

[0022] 3. The present invention enables the cleaning component to perform double cleaning during the process of moving back to its original position and moving to the fixed mold through the rotation of the maintenance component, thereby avoiding the situation where some materials stick to the cleaning component, resulting in incomplete cleaning of the fixed mold, and causing flow marks on the injected lampshade. It also avoids the situation where the residual material from the previous injection molding on the fixed mold causes secondary fusion with the material injected next time, making the lampshade a defective product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the front side of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0025] Figure 3 It is a schematic diagram of the overall structure of the present invention from a top view;

[0026] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part B;

[0027] Figure 5 It is a schematic diagram of the overall structure of the present invention from a top view;

[0028] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part C;

[0029] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of part D;

[0030] Figure 8 This is a schematic diagram of the overall structure of the rear side of the present invention;

[0031] Figure 9 for Figure 8 Schematic diagram of the enlarged structure of part E;

[0032] Figure 10 for Figure 8 Schematic diagram of the enlarged structure of part F;

[0033] Figure 11 It is a schematic diagram of the overall structure of the present invention from a top view;

[0034] Figure 12 for Figure 11 Schematic diagram of the enlarged structure of G part;

[0035] Figure 13 for Figure 11 Schematic diagram of the enlarged structure of the H part;

[0036] Figure 14 It is the workflow diagram of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0038] 1. Injection molding machine; 2. Moving mold; 3. Fixed mold; 4. Driving assembly; 41. Connecting rod; 411. Rack; 412. Fixed protrusion; 42. Square frame; 420. Track frame; 421. Drive roller; 422. Gear 1; 43. Sliding frame; 403. Cylindrical block; 430. Engaging block; 431. Fixed track frame; 432. Fixed cylinder; 433. Fixed column; 434. Fixed frame; 44. Sliding rod; 441. Sliding pin; 442. Limiting part; 45. Sliding screw; 451. Screw drum; 452. Screw; 453. Circular plate; 454. Elastic column 1; 46. Friction clutch; 461. Articulated rod; 462. Friction slider; 463. Top plate; 5. Cleaning assembly; 51. Arc trigger frame; 52. Elastic column 2; 521. Trigger frame; 522. Fixed top frame; 53. Horizontal wiping piece; 531. Wiping head; 532. Connecting block; 533. Suction roller 1; 534. Cleaning shovel 1; 54. Fixed suction roller; 55. Fixed cleaning shovel; 6. Maintenance assembly; 61. Transmission belt; 62. Bevel gear 2; 63. Limiting frame; 64. Brush roller 1; 641. Gear 2; 642. Bevel gear 1; 65. Brush roller 2; 651. Gear 3; 66. Brush roller 3; 661. Gear 4; 10. Motor; 101. Rotating drum. DETAILED DESCRIPTION

[0039] See also Figures 1-14 The present invention provides a technical solution: an injection molding mold for automobile plastic parts, comprising an injection molding machine 1, a movable mold 2, a fixed mold 3, a motor 10, and a rotating cylinder 101. The movable mold 2 is provided on the left side of the injection molding machine 1, the fixed mold 3 is provided on the right side of the injection molding machine 1, the front side of the fixed mold 3 is provided with a motor 10, the output end of the motor 10 is fixedly connected to the rotating cylinder 101, the rear side of the movable mold 2 is fixedly connected to a driving component 4 for cleaning the fixed mold 3, the right side of the driving component 4 is fixedly connected to a cleaning component 5 for dehumidifying the surface of the fixed mold 3, and the upper part of the fixed mold 3 is provided with a maintenance component 6 for maintaining the equipment;

[0040] When the movable mold 2 leaves the fixed mold 3 with the injection-molded lampshade, the movable mold 2 will drive the driving component 4 to move. At this time, the driving component 4 will drive the cleaning component 5 to move and the driving component 4 will also drive the maintenance component 6 to rotate. The continuously rotating maintenance component 6 will clean the cleaning component 5 in the process of the driving component 4 driving the cleaning component 5 to move, preventing the cleaning component 5 from not being cleaned when returning to its position. The movement of the driving component 4 will press against the rotating cylinder 101 when the displacement of the movable mold 2 stops, thereby rotating synchronously with the rotating cylinder 101.

[0041] The driving component 4 drives the cleaning component 5 to operate so that the cleaning component 5 can clean the sticking scraps of the fixed mold 3, and can also remove water mist from the protruding surface of the fixed mold 3 to avoid the appearance of water mist during the contact between the fixed mold 3 and the air under high temperature. When the movable mold 2 is again engaged with the fixed mold 3 for injection molding, the movable mold 2 will reset the driving component 4. At this time, the maintenance component 6 will be driven by the driving component 4 to rotate, thereby cleaning the cleaning component 5 to avoid the material sticking to the cleaning component 5 and affecting the next cleaning.

[0042] As a further solution of the present invention, the driving assembly 4 includes: a connecting rod 41, a rack 411, a fixed protrusion 412, a square frame 42, a track frame 420, a transmission roller 421, a gear 422, a sliding frame 43, a sliding rod 44, a sliding pin 441, a limiting portion 442, a sliding screw 45, and a friction clutch 46. The rear side of the movable mold 2 is fixedly connected to the lower part of the connecting rod 41, the upper part of the connecting rod 41 is fixedly connected to the left end of the rack 411, the right side of the rack 411 is slidably connected to the upper part of the fixed protrusion 412, the lower part of the fixed protrusion 412 is fixedly connected to the rear side of the square frame 42, the lower part of the rack 411 is meshed and connected to the gear 422, the front side of the gear 422 is fixedly connected to the rear end of the fixed protrusion 412, and the transmission roller 421 is fixedly connected to the rear end of the fixed protrusion 412. The end portion passes through and is rotatably connected to the left side of the square frame 42, the right end of the square frame 42 is fixedly connected to the right side of the injection molding machine 1, the left end of the square frame 42 is fixedly connected to the end of the track frame 420, the slide groove of the track frame 420 is slidably connected to the upper part of the sliding frame 43, the left side of the sliding frame 43 is slidably connected to the left side of the sliding rod 44, the rear side of the sliding rod 44 is slidably connected to the rear side of the sliding frame 43, the right side of the sliding rod 44 is fixedly connected to the rear side of the cleaning assembly 5, the front side of the sliding rod 44 is slidably connected to the middle part of the sliding pin 441, the right side of the sliding pin 441 is slidably connected to the upper part of the sliding screw rod 45, the front end of the sliding screw rod 45 is fixedly connected to the end of the limiting portion 442, and the front part of the sliding screw rod 45 is fixedly connected to the end of the friction clutch 46;

[0043] The sliding frame 43 further includes: a fixed rail frame 431, a fixed cylinder 432, a fixed post 433, a fixed frame 434, a cylindrical block 403, and an interlocking block 430. The left side of the upper portion of the sliding frame 43 is fixedly connected to the end of the interlocking block 430, and the interlocking block 430 is slidably connected to the groove of the rail frame 420. The right side of the upper portion of the sliding frame 43 is fixedly connected to one end of the cylindrical block 403, and the other end of the cylindrical block 403 is slidably connected to the groove of the transmission roller 421. The lower end of the sliding frame 43 is fixedly connected to the lower end of the fixed rail frame 431, and the lower end of the fixed rail frame 431 is fixedly connected to the left side of the fixed cylinder 432. The middle portion of the fixed cylinder 432 is fixedly connected to the end of the fixed post 433. The upper portion of the fixed post 433 is slidably connected to the rear side of the sliding rod 44, and the front side of the fixed cylinder 432 is fixedly connected to one end of the fixed frame 434. The other end of the fixed frame 434 passes through and is rotatably connected to the end of the sliding screw rod 45.

[0044] The sliding screw rod 45 further includes: a wire drum 451, a wire rod 452, a circular plate 453, and an elastic column 454. The lower end of the sliding screw rod 45 is fixedly connected to the wire drum 451, and the wire drum 451 is engaged with the wire rod 452. The rear end of the wire rod 452 is rotatably connected to the rear side of the sliding frame 43. The front end of the wire rod 452 is fixedly connected to the rear end of the circular plate 453. The circular plate 453 is slidably connected to the rear end of the elastic column 454. The front end of the elastic column 454 is fixedly connected to the rear end of the friction clutch 46. The right side of the sliding screw rod 45 is fixedly connected to the front part of the cleaning assembly 5.

[0045] The friction clutch 46 further includes: a hinged rod 461, a friction slider 462, and a top plate 463. The front end of the friction clutch 46 is hinged with a plurality of hinged rods 461. The ends of the hinged rods 461 are rotatably connected to the friction sliders 462. The friction sliders 462 are slidably connected to the groove in the middle of the top plate 463.

[0046] When the movable mold 2 leaves the fixed mold 3, the movable mold 2 will drive the rack 411 to move synchronously through the connecting rod 41. At this time, the rack 411 will drive the gear 1 422 to rotate, and the rotation of the gear 1 422 will drive the transmission roller 421 to rotate. Because the groove of the transmission roller 421 engages the cylindrical block 403, the cylindrical block 403 will move toward the front side of the injection molding machine 1 as the transmission roller 421 rotates. At this time, the cylindrical block 403 drives the sliding frame 43 to move together. At this time, the sliding frame 43 will drive the sliding rod 44 and the sliding screw 45 to move together. At this time, the top plate 463 at the front end of the sliding screw 45 first abuts against the inner wall of the rotating cylinder 101. With further movement, the friction clutch 46 will drive the friction slider 462 to expand outward through the hinged rod 461. At this time, the side of the top plate friction slider 462 will press against the side wall of the rotating cylinder 101. At this time, the rotating cylinder 101 can drive the screw rod 452 to rotate through the friction clutch 46. During this movement, when the driving component 4 drives the cleaning component 5 to pass through the rotating maintenance component 6, the maintenance component 6 will clean the cleaning component 5 again to avoid the pollution caused by the cleaning component 5 that has not been cleaned directly contacting the fixed mold 3. Moreover, when the screw rod 452 rotates, it will drive the wire drum 451 to move horizontally backward. At this time, the sliding pin 441 in the groove of the sliding screw rod 45 will move with the movement of the sliding screw rod 45, which will cause the wire drum 451 to press against the sliding rod 44 and move down. At this time, the movement of the sliding rod 44 and the sliding screw rod 45 will drive the cleaning component 5 to clean the fixed mold 3.

[0047] By setting the driving component 4, the driving component 4 can drive the cleaning component 5 to pass the rotating maintenance component 6 during the movement. The maintenance component 6 will clean the cleaning component 5 again to avoid the pollution caused by the direct contact of the cleaning component 5 that has not been cleaned with the fixed mold 3. In addition, the cleaning component 5 is driven to clean the fixed mold 3 through the friction contact between the friction clutch 46 and the rotating cylinder 101. In this way, it can be ensured that the cleaning component 5 can clean the fixed mold 3 only when the movable mold 2 is opened and closed in place, and it is prevented that the lampshade is removed from the movable mold 2 at this time because the opening and closing distance between the movable mold 2 and the fixed mold 3 is too small. The action of the cleaning component 5 will collide with the worker who takes and places the lampshade, thereby enhancing the working safety environment.

[0048] As a further solution of the present invention, the cleaning assembly 5 includes: an arc-shaped trigger frame 51, an elastic column 2 52, a horizontal wiping member 53, a wiping head 531, a fixed water-absorbing roller 54, and a fixed cleaning shovel 55. The end of the arc-shaped trigger frame 51 is fixedly connected to the right side of the injection molding machine 1, and the front side of the arc-shaped trigger frame 51 is provided with an elastic column 2 52. The lower part of the movable mold 2 is slidably connected to the groove of the limiting portion 442. The end of the horizontal wiping member 53 is fixedly connected to the middle part of the sliding screw 45, and the other end of the horizontal wiping member 53 is rotatably connected to the wiping head 531. The rear side of the sliding rod 44 is fixedly connected to the end of the fixed water-absorbing roller 54. The lower part of the fixed water-absorbing roller 54 is correspondingly provided with a fixed cleaning shovel 55 fixedly connected to the rear side of the sliding rod 44. A plurality of fixed water-absorbing rollers 54 are fixedly connected to the right side of the sliding screw 45, and a plurality of fixed cleaning shovels 55 are fixedly connected to the right side of the sliding screw 45.

[0049] The second elastic column 52 further includes: a trigger frame 521, a fixed top frame 522, a connecting block 532, a water-absorbing roller 533, and a cleaning shovel 534. The end of the second elastic column 52 is fixedly connected to the left side of the connecting block 532, the right side of the connecting block 532 is fixedly connected to the end of the water-absorbing roller 533, and the right side of the connecting block 532 is fixedly connected to the end of the cleaning shovel 534. The upper part of the connecting block 532 is fixedly connected to the lower end of the trigger frame 521, and the upper end of the trigger frame 521 is fixedly connected to the end of the fixed top frame 522.

[0050] When the sliding rod 44 moves to the rear side of the fixed mold 3, the end of the fixed top frame 522 will be pressed by the inclined surface of the arc-shaped trigger frame 51 to move leftward during the continuous movement of the sliding rod 44. At this time, the fixed top frame 522 will drive the trigger frame 521 to move. At this time, the trigger frame 521 will squeeze the elastic column 2 52, so that the elastic column 2 52 will shrink under the restriction of the limit part 442. At this time, the cleaning shovel 1 534 and the water-absorbing roller 1 533 will shrink together, so as not to collide with the fixed mold 3 during the movement. When the fixed top frame 522 slides to the front side and can no longer be pressed by the arc-shaped trigger frame When the trigger frame 51 is pressed, it resets. At this time, the water-absorbing roller 533 and the cleaning shovel 534 will be close to the right side of the fixed mold 3. At this time, as the sliding rod 44 and the sliding screw 45 move, the fixed cleaning shovel 55 and the cleaning shovel 534 fixed on the sliding rod 44 will clean the corners of the side of the fixed mold 3, and the fixed cleaning shovel 55 and the horizontal wiper 53 fixed at the upper and lower ends of the sliding screw 45 will clean the upper and lower edges and the surface of the front side of the fixed mold 3, and the fixed water-absorbing roller 54 and the water-absorbing roller 533 will also remove the water mist on the surface of the fixed mold 3.

[0051] By setting up the cleaning component 5, each time the fixed mold 3 and the movable mold 2 are demolded, the side edges and corners of the fixed mold 3 can be cleaned to prevent the material from sticking to the fixed mold 3 and the water mist caused by the temperature difference on the surface of the fixed mold 3 can be removed, thereby avoiding the situation where flow marks appear on the lampshade when the movable mold 2 and the fixed mold 3 are combined next time.

[0052] As a further solution of the present invention, the maintenance component 6 includes: a transmission belt 61, a bevel gear 2 62, a limiting frame 63, a brush roller 1 64, a gear 2 641, a bevel gear 1 642, a brush roller 2 65, a gear 3 651, a brush roller 3 66, and a gear 4 661. The upper end of the transmission belt 61 is meshed and connected to the right side of the drive component 4, and the lower end of the transmission belt 61 is meshed and connected to the end of the bevel gear 2 62. The bevel gear 2 62 is rotated through the rear side of the limiting frame 63. The end of the limiting frame 63 is fixedly connected to the rear side of the fixed mold 3. The bevel gear 2 62 is meshed and connected to the bevel gear One 642, the end of the bevel gear one 642 is fixedly connected to the middle of the gear two 641, the gear two 641 is fixedly connected to the end of the brush roller one 64, the brush roller one 64 passes through the rotation connection limit frame 63, the gear two 641 is meshed with the gear three 651, the gear three 651 is fixedly connected to the end of the brush roller two 65, the brush roller two 65 passes through the rotation connection limit frame 63, the gear three 651 is meshed with the gear four 661, the gear four 661 is fixedly connected to the end of the brush roller three 66, the brush roller three 66 passes through the rotation connection limit frame 63;

[0053] When gear 1 422 rotates and drives transmission belt 61 to operate, transmission belt 61 will drive bevel gear 2 62 to rotate. At this time, the rotation of bevel gear 2 62 will drive bevel gear 1 642, and bevel gear 1 642 will drive brush roller 1 64 to rotate. Because the lower part of gear 2 641 is engaged with gear 3 651, and the lower part of gear 3 651 is engaged with gear 4 661, when gear 2 641 rotates, gear 3 651 and gear 4 661 will also rotate. At this time, brush roller 1 64, brush roller 2 65 and brush roller 3 66 will also rotate. It will rotate. When the cleaning component 5 moves to the position of the brush roller 2 65, when the wiping head 531 is pressed against the upper part by the brush roller 2 65, since there is a rebound head at the connection between the horizontal wiping member 53 and the wiping head 531, the wiping head 531 will be adjusted from a vertical state to a horizontal state and thus be cleaned by the brush roller 2 65, and the water-absorbing roller 1 533 and the cleaning shovel 1 534 and the fixed water-absorbing roller 54 and the fixed cleaning shovel 55 will be cleaned by the brush roller 1 64 and the brush roller 3 66 during the movement to clean up the materials attached to them.

[0054] By rotating the maintenance component 6, the cleaning component 5 performs double cleaning during the process of moving back to its original position and moving to the fixed mold 3, thereby avoiding some materials sticking to the cleaning component 5, resulting in incomplete cleaning of the fixed mold 3, and causing flow marks on the injected lampshade. It also avoids the situation where the residual material from the previous injection on the fixed mold 3 causes secondary fusion with the material injected next time, making the lampshade a defective product.

[0055] The above-mentioned method for injection molding of automobile plastic parts, wherein the specific steps of using the mold are as follows:

[0056] Step 1: When the movable mold 2 leaves the fixed mold 3 with the injection-molded lampshade, the movable mold 2 drives the driving assembly 4 to move. At this time, the driving assembly 4 drives the cleaning assembly 5 to move. The movement of the driving assembly 4 rotates synchronously with the rotating cylinder 101.

[0057] Step 2: The driving component 4 drives the cleaning component 5 to operate so that the cleaning component 5 can clean the sticking scraps of the fixed mold 3;

[0058] Step 3: When the movable mold 2 is again engaged with the fixed mold 3 for injection molding, the movable mold 2 will reset the driving component 4. At this time, the maintenance component 6 will be driven by the driving component 4 to rotate, thereby cleaning the cleaning component 5 to prevent the material from sticking to the cleaning component 5.

Claims

1. An injection molding mold for automobile plastic parts, comprising an injection molding machine (1), a movable mold (2), a fixed mold (3), an electric motor (10), and a rotating cylinder (101), wherein the movable mold (2) is provided on the left side of the injection molding machine (1), the fixed mold (3) is provided on the right side of the injection molding machine (1), the electric motor (10) is provided on the front side of the fixed mold (3), and the output end of the electric motor (10) is fixedly connected to the rotating cylinder (101), characterized in that: The rear side of the movable mold (2) is fixedly connected to a driving assembly (4) for cleaning the fixed mold (3); the right side of the driving assembly (4) is fixedly connected to a cleaning assembly (5) for dehumidifying the surface of the fixed mold (3); the upper part of the fixed mold (3) is provided with a maintenance assembly (6) for maintaining the equipment; the driving assembly (4) comprises: a connecting rod (41), a rack (411), a fixed protrusion (412), a square frame (42), a track frame (420), a transmission roller (421), a gear 1 (422), a slide The movable frame (43), the sliding rod (44), the sliding pin (441), the limiting part (442), the sliding screw (45), the friction clutch (46), the rear side of the movable mold (2) is fixedly connected to the lower part of the connecting rod (41), the upper part of the connecting rod (41) is fixedly connected to the left end of the rack (411), the right side of the rack (411) is slidably connected to the upper part of the fixed protrusion (412), the lower part of the fixed protrusion (412) is fixedly connected to the rear side of the square frame (42), and the lower part of the rack (411) is meshed with the The front side of the gear 1 (422) is fixedly connected to the rear end of the fixed protrusion (412), the end of the transmission roller (421) is connected to the left side of the square frame (42), the right end of the square frame (42) is fixedly connected to the right side of the injection molding machine (1), the left end of the square frame (42) is fixedly connected to the end of the track frame (420), the slide groove of the track frame (420) is slidably connected to the upper part of the sliding frame (43), and the left side of the sliding frame (43) is slidably connected to the sliding rod (4 4), the rear side of the sliding rod (44) is slidably connected to the rear side of the sliding frame (43), the right side of the sliding rod (44) is fixedly connected to the rear side of the cleaning assembly (5), the front side of the sliding rod (44) is slidably connected to the middle part of the sliding pin (441), the right side of the sliding pin (441) is slidably connected to the upper part of the sliding screw rod (45), the front end of the sliding screw rod (45) is fixedly connected to the end of the limiting portion (442), and the front part of the sliding screw rod (45) is fixedly connected to the end of the friction clutch (46); The cleaning assembly (5) comprises: an arc-shaped trigger frame (51), a second elastic column (52), a transverse wiping member (53), a wiping head (531), a fixed water-absorbing roller (54), and a fixed cleaning shovel (55). The end of the arc-shaped trigger frame (51) is fixedly connected to the right side of the injection molding machine (1). The front side of the arc-shaped trigger frame (51) is provided with a second elastic column (52). The lower part of the movable mold (2) is slidably connected to the groove of the limiting part (442). The end of the transverse wiping member (53) is fixedly connected to the sliding groove. The other end of the transverse wiping member (53) is rotatably connected to the wiping head (531) at the middle of the screw rod (45), the rear side of the sliding rod (44) is fixedly connected to the end of the fixed water-absorbing roller (54), and the lower part of the fixed water-absorbing roller (54) is correspondingly provided with a fixed cleaning shovel (55) fixedly connected to the rear side of the sliding rod (44), and a plurality of fixed water-absorbing rollers (54) are fixedly connected to the right side of the sliding screw rod (45), and a plurality of fixed cleaning shovels (55) are fixedly connected to the right side of the sliding screw rod (45).

2. The automotive plastic part injection molding die according to claim 1, characterized in that: The sliding frame (43) further comprises: a fixed track frame (431), a fixed cylinder (432), a fixed column (433), a fixed frame (434), a cylindrical block (403), and a chimeric block (430). The left side of the upper portion of the sliding frame (43) is fixedly connected to the end of the chimeric block (430), and the chimeric block (430) is slidably connected to the groove of the track frame (420). The right side of the upper portion of the sliding frame (43) is fixedly connected to one end of the cylindrical block (403), and the other end of the cylindrical block (403) is slidably connected to the groove of the transmission roller (421). The lower end of the sliding frame (43) is fixedly connected to the lower end of the fixed track frame (431), the lower end of the fixed track frame (431) is fixedly connected to the left side of the fixed cylinder (432), the middle part of the fixed cylinder (432) is fixedly connected to the end of the fixed column (433), the upper part of the fixed column (433) is slidably connected to the rear side of the sliding rod (44), the front side of the fixed cylinder (432) is fixedly connected to one end of the fixed frame (434), and the other end of the fixed frame (434) is rotatably connected to the end of the sliding screw rod (45).

3. The automotive plastic part injection molding die according to claim 2, characterized in that: The sliding screw (45) further comprises: a wire drum (451), a screw rod (452), a circular plate (453), and an elastic column (454). The lower end of the sliding screw rod (45) is fixedly connected to the wire drum (451), the wire drum (451) is engaged with the screw rod (452), the rear end of the screw rod (452) is rotatably connected to the rear side of the sliding frame (43), the front end of the screw rod (452) is fixedly connected to the rear end of the circular plate (453), the circular plate (453) is slidably connected to the rear end of the elastic column (454), the front end of the elastic column (454) is fixedly connected to the rear end of the friction clutch (46), and the right side of the sliding screw rod (45) is fixedly connected to the front of the cleaning assembly (5).

4. The automotive plastic part injection molding die according to claim 3, characterized in that: The friction clutch (46) further comprises: an articulated rod (461), a friction slider (462), and a top plate (463). The front end of the friction clutch (46) is hinged with a plurality of articulated rods (461), the ends of the articulated rods (461) are rotatably connected to the friction sliders (462), and the friction sliders (462) are slidably connected to the groove in the middle of the top plate (463).

5. The automotive plastic part injection molding die according to claim 4, characterized in that: The elastic column 2 (52) further comprises: a trigger frame (521), a fixed top frame (522), a connecting block (532), a water-absorbing roller 1 (533), and a cleaning shovel 1 (534). The end of the elastic column 2 (52) is fixedly connected to the left side of the connecting block (532), the right side of the connecting block (532) is fixedly connected to the end of the water-absorbing roller 1 (533), the right side of the connecting block (532) is fixedly connected to the end of the cleaning shovel 1 (534), the upper part of the connecting block (532) is fixedly connected to the lower end of the trigger frame (521), and the upper end of the trigger frame (521) is fixedly connected to the end of the fixed top frame (522).

6. The automotive plastic part injection molding die according to claim 1, characterized in that: The maintenance component (6) includes: a transmission belt (61), a second bevel gear (62), a limiting frame (63), a brush roller (64), a second gear (641), a first bevel gear (642), a second brush roller (65), a third gear (651), a third brush roller (66), and a fourth gear (661). The upper end of the transmission belt (61) is meshed and connected to the right side of the driving component (4). The lower end of the transmission belt (61) is meshed and connected to the end of the second bevel gear (62). The second bevel gear (62) is connected to the rear side of the limiting frame (63) through rotation. The end of the limiting frame (63) is fixedly connected to the rear side of the fixed mold (3). The second bevel gear (62) is meshed and connected to the first bevel gear (642). ), the end of the bevel gear 1 (642) is fixedly connected to the middle of the gear 2 (641), the gear 2 (641) is fixedly connected to the end of the brush roller 1 (64), the brush roller 1 (64) passes through the rotation connection limit frame (63), the gear 2 (641) is meshed with the gear 3 (651), the gear 3 (651) is fixedly connected to the end of the brush roller 2 (65), the brush roller 2 (65) passes through the rotation connection limit frame (63), the gear 3 (651) is meshed with the gear 4 (661), the gear 4 (661) is fixedly connected to the end of the brush roller 3 (66), and the brush roller 3 (66) passes through the rotation connection limit frame (63).

7. A method for injection molding of automotive plastic parts, applicable to the automotive plastic part injection molding mold according to any one of claims 1 to 6, characterized in that: The specific steps for using the mold are: Step 1: When the movable mold (2) leaves the fixed mold (3) with the injection-molded lampshade, the movable mold (2) drives the driving component (4) to move, and at this time the driving component (4) drives the cleaning component (5) to move, and the driving component (4) moves and rotates synchronously with the rotating cylinder (101); at the same time, the driving component (4) also drives the maintenance component (6) to rotate, and the continuously rotating maintenance component (6) cleans the cleaning component (5) during the process of the driving component (4) driving the cleaning component (5) to move; Step 2: driving the cleaning component (5) via the driving component (4) so that the cleaning component (5) can clean the sticky scraps of the fixed mold (3); Step 3: When the movable mold (2) is again engaged with the fixed mold (3) for injection molding, the movable mold (2) will reset the driving component (4). At this time, the maintenance component (6) will be driven by the driving component (4) to rotate, thereby cleaning the cleaning component (5) to prevent the material from adhering to the cleaning component (5).

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