CN109483801B - Injection molding post-treatment process for automobile plastic parts - Google Patents

Abstract

The invention relates to an injection molding post-treatment process of automobile plastic parts, and the automatic post-treatment equipment comprises a robot base, a robot, a gripper bracket, a mechanical gripper, a gate shearing device, a turning tool, a flame treatment device, an automatic conveying device, a safety guardrail and a static electricity removal device. The injection molding post-treatment process for the automobile plastic parts achieves automation through treatment and rotation of the plastic parts, can enable workpieces to be quickly transferred among all stations of post-treatment, improves post-treatment efficiency, occupies less space, is low in cost, can finish treatment and transfer of all post-treatment stations by only one manipulator, and is convenient for efficiency.

Description

Injection molding post-treatment process for automobile plastic parts

Technical Field

The invention relates to an injection molding post-treatment process for an automobile plastic part.

Background

After the injection molding of the automobile plastic parts is completed, a series of operations such as automatic taking out, automatic gate cutting, fixed die part taking and overturning, flame treatment, automatic product discharging, electrostatic treatment and the like need to be performed, usually, the operations need to be completed through processing of a plurality of stations, and manual or mechanical transfer is needed between each station, so that the post-treatment efficiency of the automobile plastic parts is low, and the requirement of high-efficiency production cannot be met. If set up the manipulator and come to transport the work piece between the station, aftertreatment efficiency is higher to need to set up a plurality of manipulators, occupation space is more, and the cost is higher.

Disclosure of Invention

The invention aims to overcome the defects and provide the injection molding post-treatment process for the automobile plastic parts, which has the advantages of high post-treatment efficiency, small occupied space and low cost.

The purpose of the invention is realized as follows:

a post-processing technology for injection molding of automobile plastic parts uses post-processing equipment, which comprises a robot base arranged at a discharge port of an injection molding machine, wherein a robot is placed at the rear end of the top of the robot base, the bottom of the robot is fixed on the robot base, a mechanical arm is arranged on the side surface of the robot, and a male gun changing plate is arranged at the tail end of the mechanical arm;

the right side of the rear end of the robot base is provided with a gripper support, a plurality of groups of cylinder clamps are arranged on the front side of the gripper support from top to bottom, two cylinder clamps which are adjacent from top to bottom form a group, the bottom of an upper cylinder and the top of a lower cylinder of each group of cylinder clamps are fixed with a horizontally placed guide rail, a mechanical gripper is clamped between the two guide rails, the mechanical gripper comprises a middle connecting block, the front side of the connecting block is connected with a female gun changing plate, the female gun changing plate is in pneumatic fit with a male gun changing plate, the back side of the connecting block is fixed with four transversely arranged circular tubes through fixing clamps, one ends of the inner sides of the four circular tubes are fixed with the connecting block through the fixing clamps, one ends, far away from the connecting block, of the circular tubes are fixed with a pneumatic vice through pneumatic connecting rods, the pneumatic vice comprises a pliers and a cylinder, the cylinder drives the pliers to clamp or release after, the sucker is supported by the circular tube and extends out of the front side of the connecting block;

a gate shearing device is arranged on the front side of the gripper support and comprises a gate shearing support, two sides of the top of the gate shearing support are respectively fixed with a scissor cylinder and a blade cylinder, piston rods at the tops of the scissor cylinder and the blade cylinder are respectively connected with a scissor and a double-edged cold blade, the piston rods of the scissor cylinder and the blade cylinder can stretch and rotate, a stainless steel hopper is arranged in the middle of the gate shearing support, the top of the stainless steel hopper is positioned right below the scissor cylinder and the blade cylinder, a fence is arranged on the periphery of the top, and a waste material barrel is arranged below the bottom of the stainless steel hopper;

the front side of the sprue shearing device is also provided with a turning tool which comprises stand columns on the left side and the right side, the tops of the two stand columns are respectively provided with a bearing sleeve, a rotating shaft penetrates between the two shaft sleeves, one end of the rotating shaft is connected with an output shaft of a rotating motor, the rotating shaft is driven to rotate by the rotating motor, the middle of the rotating shaft is sleeved with two turning shaft sleeves, the bottoms of the turning shaft sleeves are arranged on a turning shaft sleeve guide rail, two servo motors are arranged above the rotating shaft, the output shafts of the servo motors are fixedly connected with the turning shaft sleeves, the turning shafts are arranged at the bottoms of the turning shaft sleeves, the two connecting shafts are arranged oppositely, turning suckers are fixed on the inner sides of the two connecting shafts respectively, and the turning shaft sleeves are pushed by the;

the turning tool is also provided with a flame treatment device, the flame treatment device comprises a flame sprayer, the flame sprayer is perpendicular to the rotating shaft of the turning tool, the flame sprayer is erected on the left side and the right side of the top of the rotating shaft, the top of the flame sprayer is vertically and upwards provided with a row of spraying holes, and an air inlet at the bottom of the flame sprayer is connected with a natural gas pipe;

the automatic conveying device is arranged on the front side of the overturning tool and comprises a moving trolley, the moving trolley comprises a trolley support and a pulley at the bottom, transverse guide rails are arranged on the front side and the rear side of the trolley support, a vertical conveying device support is arranged in the guide rails through a sliding block, a handle screw is arranged on the conveying device support to position the conveying device support, the top of the conveying device support is fixed with an inclined conveying rail, and the front side of the conveying rail is arranged obliquely downwards;

the safety guardrail is arranged outside the injection molding post-treatment process of the automobile plastic parts, the safety guardrail surrounds the gripper bracket, the gate shearing device, the overturning tool, the flame treatment device and the automatic conveying device inside, the height of the safety guardrail is lower than that of the robot, the front side of the safety guardrail is provided with an opening at the front end of the automatic conveying device, and the front end of the conveying track extends out and is conveyed into the collecting device;

the static removing device is an ion air knife and consists of an ion bar and an air knife, the ion bar is connected with the air knife, and an air outlet of the air knife faces the conveying track;

the process method of the injection molding post-treatment process of the automobile plastic parts comprises the following steps: after the plastic part is injected from the injection molding machine, the mechanical arm is extended out by a robot, the plastic part is stably grabbed by a clamp and a sucker of a mechanical gripper, then the plastic part is sent to a gate shearing device, a shear and a double-edge cold blade of the gate shearing device perform waste edge shearing on the plastic part under the telescopic and rotary actions of a shear cylinder and a blade cylinder, the sheared waste material falls into a waste material barrel through a stainless steel hopper, then the mechanical gripper sends the plastic part to the upper part of a flame treatment device, natural gas is introduced into a natural gas pipe, a row of flame is upwards sprayed out by a flame sprayer, the mechanical gripper drives the plastic part to slowly move to complete the treatment of burrs, fins and surface impurities, then the mechanical plastic part gripper extends to the position between turnover shafts below the turnover tool, after the plastic part is sucked by the turnover sucker, the clamp of the mechanical gripper is loosened, and a rotary shaft is driven to rotate, when the turnover shaft is turned over to the upper side from the lower part of the rotating shaft, the plastic part is turned over by 180 degrees, the pliers of the mechanical gripper grab the plastic part again, the sucking disc sucks the plastic part to finish the whole turning action, then the mechanical gripper is placed on the gate shearing device to shear the waste edge of the reverse side of the plastic part, the cut waste edge is sent to the flame treatment device to treat burrs, flashes and surface impurities of the reverse side of the plastic part, then the mechanical gripper puts the plastic part on the conveying track of the automatic conveying device, when the conveying track conveys the plastic part, the static removing devices on two sides of the outlet of the safety guardrail work, the ion bar generates a large amount of positive and negative ions under high pressure, the air curtain blown out by the air knife is used as a carrier to bring the large amount of ions to the surface of the object to be removed, the static electricity on the surface of the product is neutralized rapidly, and the removed static electricity is, thereby completing the post-processing;

when the mechanical hand arranged on the mechanical arm is not matched with a plastic part, the robot stretches the mechanical arm to a vacant position on the hand support where the mechanical hand is not placed, the guide rail of the hand support is clamped up and down, a male gun changing disc and a female gun changing disc of the mechanical arm are separated pneumatically, so that the unmatched mechanical hand is placed on the hand support and then ascends to a spare mechanical hand matched with the plastic part, the male gun changing disc on the mechanical arm is connected with the female gun changing disc on the hand support in a pneumatic matching mode, then the guide rail at the position of the spare mechanical hand matched with the plastic part is loosened up and down, and the mechanical arm completes the action of automatically replacing the mechanical hand;

when the specifications of the plastic parts are inconsistent with the conveying track, the movable trolley drives the automatic conveying device to move to adjust the position, then the width of the conveying track is adjusted by sliding the conveying device bracket left and right to be suitable for products with different specifications, and the conveying device bracket is positioned by using a handle screw after the adjustment is finished;

when the distance between the two overturning suckers on the overturning tool is not consistent with the plastic part, the overturning shaft sleeve is pushed by the servo motor to move in the overturning shaft sleeve guide rail, and the distance between the two overturning suckers is adjusted, so that the overturning tool is suitable for adsorbing and overturning the plastic parts of different specifications.

The injection molding post-treatment process for the automobile plastic parts has the following advantages:

the injection molding post-treatment process for the automobile plastic parts achieves automation through treatment and rotation of the plastic parts, can enable workpieces to be quickly transferred among all stations of post-treatment, improves post-treatment efficiency, occupies less space, is low in cost, can finish treatment and transfer of all post-treatment stations by only one manipulator, and is convenient for efficiency.

1. The mechanical gripper of the post-processing equipment is made of carbon fiber, the weight of the mechanical gripper is 30% -40% lighter than that of the original aluminum alloy gripper, and the mechanical gripper can operate and grip smartly after the whole weight of the mechanical hand is reduced.

2. When the mechanical hand of arm facial make-up of robot did not match with the working of plastics, the robot stretches the arm to the vacancy department that does not place the mechanical hand on the hand grip support, the guide rail of hand grip support presss from both sides from top to bottom this moment, the public rifle dish that trades of arm and the pneumatic separation of female rifle dish that trades of arm, thereby put unmatched mechanical hand on the hand grip support, rise to the reserve mechanical hand department of matcing with the working of plastics afterwards, public rifle dish that trades on the arm and the female rifle dish that trades on the hand grip support are connected in pneumatic cooperation, loosen from top to bottom with the guide rail of the reserve mechanical hand position department of working of plastics matching afterwards, the arm has just accomplished the action of automatic change mechanical hand, thereby can.

3. The scissors and the cold blade of twolip of back processing equipment's cut runner device are under the flexible and rotatory action of scissors cylinder and blade cylinder, carry out the slitter edge to the working of plastics and cut, mechanical tongs stretches the working of plastics between the trip shaft of upset frock below afterwards, the back is inhaled to the upset sucking disc, the pliers of mechanical tongs loosens, it is rotatory 180 degrees with the working of plastics upset to drive the rotation axis by rotating electrical machines, the pliers of mechanical tongs this moment grabs to the working of plastics again, put again afterwards and carry out the slitter edge to the reverse side of working of plastics and cut on cutting the runner device, very convenient efficiency.

4. After-treatment equipment carries out flame treatment to the working of plastics, the top of flame treatment device is sent the working of plastics to mechanical tongs, mechanical tongs takes the working of plastics slowly to move just can accomplish the burr, the processing of overlap and surperficial impurity, mechanical tongs stretches the working of plastics between the trip shaft of upset frock below afterwards, after the working of plastics was inhaled to the upset sucking disc, the pliers of mechanical tongs loosens, it is rotatory 180 degrees with the working of plastics upset to drive the rotation axis by the rotating electrical machines, the pliers of mechanical tongs grabs the working of plastics again this moment, put again afterwards and carry out the burr to the reverse side of working of plastics on cutting the runner device, overlap and surperficial impurity's processing, very convenient efficiency.

5. When the specifications of plastic parts are inconsistent with the conveying track, the automatic conveying device of the post-processing equipment is driven by the moving trolley to move to adjust the position, then the width of the conveying track is adjusted by sliding the conveying device support left and right to be suitable for products of different specifications, and the conveying device support is positioned by using handle screws after the adjustment is finished, so that the conveying device is suitable for the plastic parts of different specifications.

Drawings

FIG. 1 is a schematic structural diagram of an injection molding post-treatment process of an automotive plastic part according to the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a schematic structural diagram of the robot in fig. 1.

Fig. 4 is a schematic view of the gripper bracket of fig. 1.

Fig. 5 is an enlarged view of a portion a of fig. 4.

Fig. 6 is a schematic view of the mechanical gripper of fig. 4.

Fig. 7 is a schematic structural view of the gate shearing apparatus in fig. 1.

Fig. 8 is a schematic structural view of the top of the gate holder of fig. 7.

Fig. 9 is a schematic structural view of the turning tool and the flame treatment device in fig. 1.

Fig. 10 is a schematic structural view of the automatic conveying apparatus in fig. 1.

Fig. 11 is a schematic structural view of the static eliminating apparatus in fig. 10.

In the figure: the automatic flame spraying device comprises an injection molding machine 1, a robot base 2, a robot 3, a mechanical arm 3.1, a male gun changing plate 3.2, a gripper support 4, a cylinder clamp 4.1, a guide rail 4.2, a mechanical gripper 5, a connecting block 5.1, a female gun changing plate 5.2, a fixing clamp 5.3, a round pipe 5.4, a pneumatic connecting rod 5.5, a vice 5.6, a clamp 5.6.1, a cylinder 5.6.2, a sucker 5.7, a gate shearing device 6, a gate shearing support 6.1, a scissor cylinder 6.2, a blade cylinder 6.3, a scissor 6.4, a double-edge cold blade 6.5, an angle adjusting plate 6.6, a stainless steel hopper 6.7, a waste material barrel 6.8, a turning tool 7, a stand column 7.1, a shaft sleeve 7.2, a rotating shaft 7.3, a rotating motor 7.4, a turning shaft sleeve 7.5, a turning shaft sleeve guide rail 7.6, a servo motor 7, a turning shaft 7.8, a turning shaft 7.9, a turning processing device, a flame processing device, a natural flame processing device, a natural gas pipe support 1.9.2, a natural gas pipe moving device, a pulley device, Conveying track 9.5, safety barrier 10, static-removing device 11, ion bar 11.1, air knife 11.2.

Detailed Description

Referring to fig. 1 to 11, the invention relates to an injection molding post-treatment process of automobile plastic parts, which uses post-treatment equipment, and comprises a robot base 2 arranged at a discharge port of an injection molding machine 1, wherein a robot 3 is placed at the rear end of the top of the robot base 2, the bottom of the robot 3 is fixed on the robot base 2, a mechanical arm 3.1 is arranged on the side surface of the robot 3, and a common gun plate 3.2 is arranged at the tail end of the mechanical arm 3.1.

The right side of the rear end of the robot base 2 is provided with a gripper support 4, the bottom of the gripper support 4 is fixed on the ground through expansion screws, the front of the gripper support 4 is provided with a plurality of groups of cylinder clamps 4.1 from top to bottom, two adjacent cylinder clamps 4.1 form a group, the bottom of an upper cylinder and the top of a lower cylinder of each group of cylinder clamps 4.1 are fixed with horizontally placed guide rails 4.2, a mechanical gripper 5 which can be replaced is clamped between the two guide rails 4.2, the mechanical gripper 5 is made of carbon fiber, the weight of the mechanical gripper is 30% -40% lighter than that of an original aluminum alloy gripper, the mechanical gripper can flexibly run and grip after the whole weight of a manipulator is reduced, the mechanical gripper 5 comprises a middle connecting block 5.1, the front of the connecting block 5.1 is connected with a female gun changing disc 5.2, the female gun changing disc 5.2 is in pneumatic fit with a male gun changing disc 5.2, the back of the connecting block 5.1 is fixed with transversely arranged circular tubes 5.4 through four fixing clamps 5.3, the inboard one end of four pipe 5.4 all is fixed through fixation clamp 5.3 and connecting block 5.1, and the one end that connecting block 5.1 was kept away from to pipe 5.4 all is fixed through pneumatic connecting rod 5.5 and pneumatic vice 5.6, pneumatic vice 5.6 includes pliers 5.6.1 and cylinder 5.6.2, and it presss from both sides tightly or loosen to drive pliers 5.6.1 after the cylinder 5.6.2 advances to give vent to anger, thereby cliies the working of plastics, and pliers 5.6.1 surface can also be sheathe in the protection film, thereby protect the working of plastics, prevent to scratch the working of plastics, in addition pipe 5.4's front still is fixed with a plurality of sucking disc working of plastics 5.7, sucking disc 5.7 supports and stretches out to connecting block 5.1's front side through pipe 5.4, this sucking disc 5.7 is the no trace sucking disc, can assist the absorption after moulding plastics, and can avoid leaving the trace.

The front side of the gripper support 4 is provided with a gate shearing device 6, the gate shearing device 6 comprises a gate shearing support 6.1, the bottom of the gate shearing support 6.1 is fixed on the ground through an expansion screw, two sides of the top of the gate shearing support 6.1 are respectively fixed with a scissor cylinder 6.2 and a blade cylinder 6.3, piston rods at the tops of the scissor cylinder 6.2 and the blade cylinder 6.3 are respectively connected with a scissor 6.4 and a double-edge cold blade 6.5, the piston rods of the scissor cylinder 6.2 and the blade cylinder 6.3 can stretch and rotate, so that the scissor 6.4 and the double-edge cold blade 6.5 are driven by a manipulator to stretch and rotate, an angle adjusting disc 6.6 is further arranged at the bottom of the blade cylinder 6.3, the rotation angle of the double-edge cold blade 6.5 can be accurately adjusted, a stainless steel hopper 6.7 is arranged at the middle part of the gate shearing support 6.1, the top of the stainless steel hopper 6.7 is positioned right below the scissor cylinder 6.2 and the blade cylinder 6.3, and a fence 6.8 is arranged at the periphery of the top, the waste edge cut off can be blocked, the outside of the stainless steel hopper 6.7 is prevented from falling, and the waste material barrel 6.8 is placed below the bottom of the stainless steel hopper 6.7 and used for collecting the waste edge falling from the stainless steel hopper 6.7.

The front side of the gate shearing device 6 is also provided with a turning tool 7, the front and back sides of a plastic piece need to be processed, so the plastic piece needs to be turned by the turning tool 7 and then is grabbed by a mechanical gripper 5, the turning tool 7 comprises upright columns 7.1 at the left and right sides, bearing sleeves 7.2 are arranged at the tops of the two upright columns 7.1, a rotating shaft 7.3 penetrates between the two shaft sleeves 7.2, one end of the rotating shaft 7.3 is connected with an output shaft of a rotating motor 7.4, the rotating shaft 7.3 is driven to rotate by the rotating motor 7.4, the middle of the rotating shaft 7.3 is sleeved with the two turning shaft sleeves 7.5, the bottom of the turning shaft sleeve 7.5 is arranged on a turning shaft sleeve guide rail 7.6, the turning shaft sleeve guide rail 7.6 is short in length, the turning shaft sleeve 7.5 can move left and right within a limited range, two servo motors 7.7 are arranged above the rotating shaft 7.3, the output shaft of the servo motor 7.7 is fixedly connected with the turning shaft sleeve, the bottom of the turning shaft sleeve 7.5 is provided with a turning shaft 7.8, the two connecting shafts 7.8 are arranged oppositely, the inner sides of the two connecting shafts 7.8 are both fixed with turning suckers 7.9, the turning shaft sleeve 7.5 is pushed by a servo motor 7.7 to move in the turning shaft sleeve guide rail 7.6, the distance between the two turning suckers 7.9 can be adjusted, so that the turning shaft sleeve is suitable for plastic parts with different specifications, after the turning suckers 7.9 suck the plastic parts, the pliers 5.6.1 of the mechanical gripper 5 are loosened, the servo motor 7.6 synchronously drives the connecting shafts 7.8 to turn, the connecting shafts 7.8 turn over from the lower part of the rotating shaft 7.3 to the upper part of the plastic parts, the pliers 5.6.1 of the mechanical gripper 5 can turn over for 180 degrees, at the moment, and the whole turning action can be completed after the pliers.

Still be equipped with flame treatment device 8 on upset frock 7, this flame treatment device 8 is used for handling the burr of working of plastics, overlap and surface impurity, this flame treatment device 8 includes flame sprayer 8.1, flame sprayer 8.1 sets up with the rotation axis 7.3 of upset frock 7 is perpendicular, and flame sprayer 8.1 erects the left and right sides at rotation axis 7.3 top, the vertical one row of jet orifice 8.2 of upwards having seted up in top of flame sprayer 8.1, the bottom air inlet of flame sprayer 8.1 links to each other with natural gas pipe 8.3.

The front side of the overturning tool 7 is provided with an automatic conveying device 9, the automatic conveying device 9 comprises a moving trolley 9.1, the moving trolley 9.1 comprises a trolley support 9.2 and a pulley 9.3 at the bottom, the moving trolley 9.1 can drive the automatic conveying device 9 to move to adjust the position, the front side and the rear side of the trolley support 9.2 are respectively provided with a transverse guide rail, a vertical conveying device support 9.4 is arranged in the guide rails through a sliding block, a handle screw is arranged on the conveying device support 9.4 to position the conveying device support 9.4, the top of the conveying device support 9.4 is fixed with an inclined conveying rail 9.5, so that the width of the conveying rail 9.5 can be adjusted through sliding the conveying device support 9.4 leftwards and rightwards to be suitable for products with different specifications, the front side of the conveying rail 9.5 is obliquely and downwards arranged so as to convey plastic pieces forwards placed on the conveying rail, and an electronic weighing device can be arranged under the conveying rail 9.5, thereby weighing the plastic part.

This kind of automobile plastics spare part's the outside of post processing technology of moulding plastics is equipped with safety barrier 10, a be used for with tongs support 4, cut runner device 6, upset frock 7, flame treatment device 8 and automatic conveyor 9 enclose inside, play the guard action, safety barrier 10 highly is less than the height of robot 3, thereby make things convenient for robot 3 to snatch the transportation to the working of plastics, safety barrier 10's front side is in automatic conveyor 9 front end department opening in addition, let during the front end of delivery track 9.5 stretches out and sends to collection device, thereby conveniently collect the working of plastics that the aftertreatment was accomplished.

The safety guardrail 10 is provided with static removing devices 11 at two sides of the front end opening, the static removing devices are ion air knives and mainly comprise ion bars 11.1 and air knives 11.2, the ion bars 11.1 are connected with the air knives 11.2, air outlets of the air knives 11.2 face the conveying tracks 9.5, the ion bars 11.1 generate a large amount of positive and negative ions under high pressure, an air curtain blown out by the air knives 11.2 is used as a carrier, the large amount of ions are brought to the surface of an object needing to be static removed, static electricity on the surface of the product is neutralized rapidly, the effective action distance is long, the action range is wide, and meanwhile, dust and other particles on the surface can be blown off by the air curtain.

The process method of the injection molding post-treatment process of the automobile plastic parts comprises the following steps: after the plastic part is injected from the injection molding machine, the mechanical arm is extended out by a robot, the plastic part is stably grabbed by a clamp and a sucker of a mechanical gripper, then the plastic part is sent to a gate shearing device, a shear and a double-edge cold blade of the gate shearing device perform waste edge shearing on the plastic part under the telescopic and rotary actions of a shear cylinder and a blade cylinder, the sheared waste material falls into a waste material barrel through a stainless steel hopper, then the mechanical gripper sends the plastic part to the upper part of a flame treatment device, natural gas is introduced into a natural gas pipe, a row of flame is upwards sprayed out by a flame sprayer, the mechanical gripper drives the plastic part to slowly move to complete the treatment of burrs, fins and surface impurities, then the mechanical plastic part gripper extends to the position between turnover shafts below the turnover tool, after the plastic part is sucked by the turnover sucker, the clamp of the mechanical gripper is loosened, and a rotary shaft is driven to rotate, when the turnover shaft is turned over to the upper side from the lower part of the rotating shaft, the plastic part is turned over by 180 degrees, the pliers of the mechanical gripper grab the plastic part again, the sucking disc sucks the plastic part to finish the whole turning action, then the mechanical gripper is placed on the gate shearing device to shear the waste edge of the reverse side of the plastic part, the cut waste edge is sent to the flame treatment device to treat burrs, flashes and surface impurities of the reverse side of the plastic part, then the mechanical gripper puts the plastic part on the conveying track of the automatic conveying device, when the conveying track conveys the plastic part, the static removing devices on two sides of the outlet of the safety guardrail work, the ion bar generates a large amount of positive and negative ions under high pressure, the air curtain blown out by the air knife is used as a carrier to bring the large amount of ions to the surface of the object to be removed, the static electricity on the surface of the product is neutralized rapidly, and the removed static electricity is, thereby completing the post-processing.

When the mechanical hand of arm facial make-up and the working of plastics are not matched, the robot stretches the arm to the vacancy department of not placing mechanical hand on the hand grip support, the guide rail of hand grip support presss from both sides tightly from top to bottom this moment, the public rifle dish that trades of arm and the pneumatic separation of female rifle dish that trades, thereby put unmatched mechanical hand on the hand grip support, rise afterwards to the reserve mechanical hand department of matcing with the working of plastics, public rifle dish that trades on the arm is connected with the female rifle dish that trades on the hand grip support pneumatics cooperation, loosen from top to bottom with the guide rail of the reserve mechanical hand position department of working of plastics matching afterwards, the arm has just accomplished the action of automatic change mechanical hand.

When the specifications of the plastic parts are inconsistent with the conveying track, the movable trolley drives the automatic conveying device to move to adjust the position, then the width of the conveying track is adjusted by sliding the conveying device support left and right to be suitable for products with different specifications, and the conveying device support is positioned by using handle screws after the adjustment is finished.

When the distance between the two overturning suckers on the overturning tool is not consistent with the plastic part, the overturning shaft sleeve is pushed by the servo motor to move in the overturning shaft sleeve guide rail, and the distance between the two overturning suckers is adjusted, so that the overturning tool is suitable for adsorbing and overturning the plastic parts of different specifications.

Claims (1)

1. An injection molding post-treatment process for automobile plastic parts is characterized in that: the process uses post-processing equipment which comprises a robot base arranged at a discharge port of an injection molding machine, wherein a robot is placed at the rear end of the top of the robot base, the bottom of the robot is fixed on the robot base, a mechanical arm is arranged on the side surface of the robot, and a common gun changing plate is arranged at the tail end of the mechanical arm;

the right side of the rear end of the robot base is provided with a gripper support, a plurality of groups of cylinder clamps are arranged on the front side of the gripper support from top to bottom, two cylinder clamps which are adjacent from top to bottom form a group, the bottom of an upper cylinder and the top of a lower cylinder of each group of cylinder clamps are fixed with a horizontally placed guide rail, a mechanical gripper is clamped between the two guide rails, the mechanical gripper comprises a middle connecting block, the front side of the connecting block is connected with a female gun changing plate, the female gun changing plate is in pneumatic fit with a male gun changing plate, the back side of the connecting block is fixed with four transversely arranged circular tubes through fixing clamps, one ends of the inner sides of the four circular tubes are fixed with the connecting block through the fixing clamps, one ends, far away from the connecting block, of the circular tubes are fixed with a pneumatic vice through pneumatic connecting rods, the pneumatic vice comprises a pliers and a cylinder, the cylinder drives the pliers to clamp or release after, the sucker is supported by the circular tube and extends out of the front side of the connecting block;

a gate shearing device is arranged on the front side of the gripper support and comprises a gate shearing support, two sides of the top of the gate shearing support are respectively fixed with a scissor cylinder and a blade cylinder, piston rods at the tops of the scissor cylinder and the blade cylinder are respectively connected with a scissor and a double-edged cold blade, the piston rods of the scissor cylinder and the blade cylinder can stretch and rotate, a stainless steel hopper is arranged in the middle of the gate shearing support, the top of the stainless steel hopper is positioned right below the scissor cylinder and the blade cylinder, a fence is arranged on the periphery of the top, and a waste material barrel is arranged below the bottom of the stainless steel hopper;

the front side of the sprue shearing device is also provided with a turning tool which comprises stand columns on the left side and the right side, the tops of the two stand columns are respectively provided with a bearing sleeve, a rotating shaft penetrates between the two shaft sleeves, one end of the rotating shaft is connected with an output shaft of a rotating motor, the rotating shaft is driven to rotate by the rotating motor, the middle of the rotating shaft is sleeved with two turning shaft sleeves, the bottoms of the turning shaft sleeves are arranged on a turning shaft sleeve guide rail, two servo motors are arranged above the rotating shaft, the output shafts of the servo motors are fixedly connected with the turning shaft sleeves, the turning shafts are arranged at the bottoms of the turning shaft sleeves, the two connecting shafts are arranged oppositely, turning suckers are fixed on the inner sides of the two connecting shafts respectively, and the turning shaft sleeves are pushed by the;

the turning tool is also provided with a flame treatment device, the flame treatment device comprises a flame sprayer, the flame sprayer is perpendicular to the rotating shaft of the turning tool, the flame sprayer is erected on the left side and the right side of the top of the rotating shaft, the top of the flame sprayer is vertically and upwards provided with a row of spraying holes, and an air inlet at the bottom of the flame sprayer is connected with a natural gas pipe;

the automatic conveying device is arranged on the front side of the overturning tool and comprises a moving trolley, the moving trolley comprises a trolley support and a pulley at the bottom, transverse guide rails are arranged on the front side and the rear side of the trolley support, a vertical conveying device support is arranged in the guide rails through a sliding block, a handle screw is arranged on the conveying device support to position the conveying device support, the top of the conveying device support is fixed with an inclined conveying rail, and the front side of the conveying rail is arranged obliquely downwards;

the safety guardrail is arranged outside the injection molding post-treatment process of the automobile plastic parts, the safety guardrail surrounds the gripper bracket, the gate shearing device, the overturning tool, the flame treatment device and the automatic conveying device inside, the height of the safety guardrail is lower than that of the robot, the front side of the safety guardrail is provided with an opening at the front end of the automatic conveying device, and the front end of the conveying track extends out and is conveyed into the collecting device;

the static removing device is an ion air knife and consists of an ion bar and an air knife, the ion bar is connected with the air knife, and an air outlet of the air knife faces the conveying track;

the process method of the injection molding post-treatment process of the automobile plastic parts comprises the following steps: after the plastic part is injected from the injection molding machine, the mechanical arm is extended out by a robot, the plastic part is stably grabbed by a clamp and a sucker of a mechanical gripper, then the plastic part is sent to a gate shearing device, a shear and a double-edge cold blade of the gate shearing device perform waste edge shearing on the plastic part under the telescopic and rotary actions of a shear cylinder and a blade cylinder, the sheared waste material falls into a waste material barrel through a stainless steel hopper, then the mechanical gripper sends the plastic part to the upper part of a flame treatment device, natural gas is introduced into a natural gas pipe, a row of flame is upwards sprayed out by a flame sprayer, the mechanical gripper drives the plastic part to slowly move to complete the treatment of burrs, fins and surface impurities, then the mechanical plastic part gripper extends to the position between turnover shafts below the turnover tool, after the plastic part is sucked by the turnover sucker, the clamp of the mechanical gripper is loosened, and a rotary shaft is driven to rotate, when the turnover shaft is turned over to the upper side from the lower part of the rotating shaft, the plastic part is turned over by 180 degrees, the pliers of the mechanical gripper grab the plastic part again, the sucking disc sucks the plastic part to finish the whole turning action, then the mechanical gripper is placed on the gate shearing device to shear the waste edge of the reverse side of the plastic part, the cut waste edge is sent to the flame treatment device to treat burrs, flashes and surface impurities of the reverse side of the plastic part, then the mechanical gripper puts the plastic part on the conveying track of the automatic conveying device, when the conveying track conveys the plastic part, the static removing devices on two sides of the outlet of the safety guardrail work, the ion bar generates a large amount of positive and negative ions under high pressure, the air curtain blown out by the air knife is used as a carrier to bring the large amount of ions to the surface of the object to be removed, the static electricity on the surface of the product is neutralized rapidly, and the removed static electricity is, thereby completing the post-processing;

when the mechanical hand arranged on the mechanical arm is not matched with a plastic part, the robot stretches the mechanical arm to a vacant position on the hand support where the mechanical hand is not placed, the guide rail of the hand support is clamped up and down, a male gun changing disc and a female gun changing disc of the mechanical arm are separated pneumatically, so that the unmatched mechanical hand is placed on the hand support and then ascends to a spare mechanical hand matched with the plastic part, the male gun changing disc on the mechanical arm is connected with the female gun changing disc on the hand support in a pneumatic matching mode, then the guide rail at the position of the spare mechanical hand matched with the plastic part is loosened up and down, and the mechanical arm completes the action of automatically replacing the mechanical hand;

when the specifications of the plastic parts are inconsistent with the conveying track, the movable trolley drives the automatic conveying device to move to adjust the position, then the width of the conveying track is adjusted by sliding the conveying device bracket left and right to be suitable for products with different specifications, and the conveying device bracket is positioned by using a handle screw after the adjustment is finished;

when the distance between the two overturning suckers on the overturning tool is not consistent with the plastic part, the overturning shaft sleeve is pushed by the servo motor to move in the overturning shaft sleeve guide rail, and the distance between the two overturning suckers is adjusted, so that the overturning tool is suitable for adsorbing and overturning the plastic parts of different specifications.

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