Automobile filter blow molding processing mechanism and control method thereof

Abstract

The present invention relates to the technical field of filter blow molding, in particular to an automobile filter blow molding processing mechanism and a control method thereof, comprising a frame, on which a mounting frame is symmetrically mounted, an extruder is arranged on the top of the frame, and the extrusion head of the extruder is used to extrude the filter mold blank to be blow molded, and also comprises: two sliding seats, which are located below the extrusion head of the extruder and are arranged on the surface of the frame through a lateral sliding mechanism, the lateral sliding mechanism is used to drive the two sliding seats to move in the same direction, and a clamping mechanism is arranged on the top of each of the sliding seats, and the clamping mechanism is used to clamp the mold blank extruded by the extruder to prepare for the subsequent blow molding; a blowing mechanism, which is arranged on the frame and is used to blow the internal mold blank after the clamping mechanism is clamped; a controller controls the blowing mechanism to blow air into the inside of the mold blank after the clamping mechanism is clamped according to the detection information of two pressure sensors.

Description

Technical Field

[0001] The invention relates to the field of filter blow molding, and in particular to an automobile filter blow molding processing mechanism and a control method thereof. Background Art

[0002] The automobile filter is one of the key components for automobile engine maintenance. Its main task is to filter impurities and pollutants generated during the operation of the engine, such as metal debris, dust, and carbon particles produced by combustion. In the existing technology, after the mold on the blow molding equipment completes the mold clamping of the parison extruded by the extruder, gas is injected into the parison inside the mold through the gas injection hole. This injection method is too simple and can easily lead to uneven distribution of gas inside the parison, causing uneven expansion of the parison and forming irregular wall thickness, which affects the strength and appearance quality of the product. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automobile filter blow molding processing mechanism and a control method thereof.

[0004] In a first aspect, the present invention provides an automobile filter blow molding processing mechanism, comprising a frame, a mounting frame symmetrically mounted on the frame, an extruder disposed on the top of the frame, an extruder head of the extruder for extruding a filter preform to be blow molded, and further comprising:

[0005] Two sliding seats are located below the extrusion head of the extruder and are arranged on the surface of the frame through a transverse sliding mechanism. The transverse sliding mechanism is used to drive the two sliding seats to move in the same direction. A clamping mechanism is arranged on the top of each sliding seat. The clamping mechanism is used to clamp the parison extruded by the extruder to prepare for subsequent blow molding.

[0006] The blowing mechanism is arranged on the frame and is used for blowing the internal mold blank after the mold clamping mechanism is molded;

[0007] Two pressure sensors are used to detect the clamping conditions of the two clamping mechanisms respectively;

[0008] The controller controls the blowing mechanism to blow air into the mold after the mold is closed according to the detection information of the two pressure sensors.

[0009] Preferably, the lateral sliding mechanism comprises:

[0010] Two slide bars are fixedly mounted between the two mounting frames, and each of the slide seats is slidably connected to the surfaces of the two slide bars;

[0011] Two first electric cylinders are respectively fixedly mounted on the tops of the two mounting frames, and piston rod ends of the two first electric cylinders are respectively fixedly connected to the bottoms of the two sliding seats.

[0012] Preferably, the clamping mechanism comprises:

[0013] Two molds are symmetrically slidably connected to the top of the sliding seat, and each mold is respectively provided with a first arc-shaped hole and a second arc-shaped hole at the upper and lower parts;

[0014] Two first fixed plates are symmetrically fixedly connected to the top of the sliding seat, and second electric cylinders are fixedly installed on the side walls of the two first fixed plates respectively, and the piston rods of the two second electric cylinders are fixedly connected to the side walls of the two molds respectively;

[0015] An inserting hole is provided through the top of the sliding seat, and a cylinder is vertically inserted into the inserting hole;

[0016] The pushing mechanism is arranged below the sliding seat. When the sliding seat moves to the mold closing processing station, the linkage pushing mechanism drives the cylinder to move upward to prepare for the mold closing of the two molds.

[0017] The parison clamping component is arranged above the two molds and is used to clamp the parison below the extruder and assist the external scissors in shearing the parison;

[0018] The parison clamping component comprises two third electric cylinders, which are respectively fixedly mounted on the side walls of the two first fixed plates, and the end of the piston rod of each of the third electric cylinders is fixedly connected to a clamping plate.

[0019] Preferably, the pushing mechanism comprises:

[0020] Two L-shaped plates are symmetrically fixedly connected to the tops of the adjacent mounting frames, and a guide rail is provided on the side wall of each L-shaped plate, and the guide rail is composed of an oblique groove and a transverse groove connected to each other;

[0021] A fixed ring is fixedly connected to the surface of the cylinder, and a sliding pin is symmetrically rotatably connected to the surface of the fixed ring, and two sliding pins are respectively inserted into the inside of the two guide rails.

[0022] Preferably, the blowing mechanism comprises:

[0023] A mounting hole is formed through the top of the cylinder, and a sealing gasket is provided on the inner wall of the mounting hole;

[0024] A circular plate is arranged inside the cylinder through a lifting and inserting component, a second fixed plate is fixedly connected to the top of the circular plate, a bearing is fixedly connected to the end of the second fixed plate, an air cylinder is fixedly connected to the inner ring wall of the bearing, four air outlets are equidistantly provided on the surface of the air cylinder, and the bottom of the air cylinder is rotatably connected to the top of the circular plate;

[0025] A rotating driving component is arranged on the surface of the blowing cylinder and is used to drive the blowing cylinder to rotate;

[0026] The gas delivery unit is arranged on the frame, the end of the gas outlet pipe of the gas delivery unit is fixedly connected with a three-way pipe, and the other two pipe openings of the three-way pipe are equipped with solenoid valves. The two pipe openings of the three-way pipe on which the solenoid valve is installed are respectively fixedly connected with flexible pipes, the upper ends of the two flexible pipes are respectively fixedly connected with two circular plates, and the two flexible pipes are respectively connected with the corresponding inside of the air cylinder, and the gas delivery unit is used to transport gas to the inside of the air cylinder with the help of the flexible pipe.

[0027] Preferably, the rotating driving component includes a first gear and a motor, the first gear is fixedly connected to the surface of the blow tube, the motor is fixedly installed at the bottom of the circular plate, the output shaft end of the motor passes through the circular plate and extends upward and is fixedly connected to a second gear, and the second gear is meshed with the first gear.

[0028] Preferably, the lifting and inserting component comprises:

[0029] A rotating frame is rotatably connected to the bottom of the sliding seat, the bottom of the rotating frame is fixedly connected to a round tube via two connecting plates, and the upper end of the round tube is inserted into the cylinder;

[0030] Two first spiral grooves are arranged in a circumferential array on the surface of the cylinder;

[0031] Two first pull pins are rotatably connected to the inner wall of the cylinder in a circular array, and the ends of the two first pull pins are respectively inserted into the inside of the two first spiral grooves;

[0032] Two clearance holes are symmetrically opened through the top of the circular plate;

[0033] Two fixing columns are symmetrically fixedly connected to the inner top surface of the cylinder, and the lower ends of the two fixing columns pass through two clearance holes respectively;

[0034] Two second spiral grooves are arranged in a circumferential array on the inner wall of the circular tube;

[0035] The two second pull pins are rotatably connected to the surface of the circular plate in a circular array, and the ends of the two second pull pins are respectively inserted into the inside of the two second spiral grooves.

[0036] In a second aspect, a blow molding mechanism for an automobile filter is provided, wherein the control method comprises the following steps:

[0037] The pressure sensor generates pressure information after detecting that the mold clamping mechanism has completed mold clamping;

[0038] The pressure sensor sends pressure information to the controller to control the blowing mechanism to deliver gas into the clamped preform.

[0039] Preferably, the control process after the controller receives the pressure information includes:

[0040] The controller generates first control information and second control information after receiving the pressure information;

[0041] The controller sends the first control information to the gas delivery unit, controls the gas delivery unit to operate, and controls the corresponding solenoid valve to open, so as to realize the gas delivery operation into the preform;

[0042] The controller sends the second control information to the rotation driving component to control the rotation driving component to operate so as to drive the blow tube to rotate.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. Two sliding seats with clamping mechanisms are arranged through a transverse sliding mechanism. The two clamping mechanisms are operated alternately, which is beneficial to maintaining the continuous blow molding operation of the blow molding processing mechanism and improving the processing efficiency. Each time the transverse sliding mechanism operates, a sliding seat is switched to move to the blow molding station, and the plastic is extruded downward from the extruder head through the extruder to form a filter preform. The formed filter preform is in a flexible but not completely solidified state, and then the plastic is clamped by the clamping mechanism on the blow molding station. After the pressure sensor detects that the corresponding clamping mechanism completes the clamping operation, the controller controls the blowing mechanism to blow the preform clamped inside the clamping mechanism. After the clamping is completed, the transverse sliding mechanism will operate again to move the sliding seat on the blow molding station to the demolding station, and link another sliding seat to move to the blow molding station to continue the blow molding operation. A double station is set for the filter blow molding operation. Compared with the prior art, after the preform is clamped, the preform needs to be blown and demolded before continuing the next filter processing, which improves the processing efficiency.

[0045] 2. After the blow-molded filter at the demolding station is removed by the external manipulator, the sliding seat will move to the mold closing station. In this process, the cylinder is pushed upward with the help of the pushing mechanism. The upward movement of the cylinder will link the lifting and plugging components to drive the blowing cylinder upward. After the blowing cylinder is moved upward, the bearing connected to the surface of the blowing cylinder will move to the mounting hole. With the help of the sealing gasket on the inner wall of the mounting hole, the sealing contact between the outer surface of the bearing and the inner wall of the mounting hole is achieved. Therefore, after the sliding seat reaches the mold closing station, the plastic preform extruded by the extruder will be downwardly sleeved on the surface of the cylinder. At the same time, the upward-moving blowing cylinder will be inserted into the inside of the preform. After the pressure sensor installed on the mold detects that the two molds move toward each other to complete the mold closing, the corresponding solenoid valve is controlled by the controller to open. The gas delivery unit delivers the gas to the inside of the blow cylinder through a flexible pipe, and controls the operation of the rotating drive component through a controller. The rotating drive component drives the blow cylinder to rotate with the help of a bearing, so that the incoming airflow is injected into the middle of the mold from the air outlet in a rotating manner, which is conducive to more uniform gas distribution and faster completion of the blowing process of the mold, thereby improving production efficiency. At the same time, it helps to reduce stress concentration inside the mold, thereby reducing defects caused by stress, and helps to improve the mechanical properties and durability of the product. The airflow entering the mold inflates the flexible plastic mold and fits it to the inner walls of the two molds. After the mold is inflated and cooled to a certain temperature in the blow molding cavity after the mold is closed, it will gradually solidify into a solid, thereby completing the blow molding of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0048] Figure 3 This is a schematic diagram of the structure of the guide rail of the present invention;

[0049] Figure 4 This is a structural schematic diagram of the connection between the tee pipe and the flexible pipe of the present invention;

[0050] Figure 5 Partial cross-section of the present invention Figure 1 ;

[0051] Figure 6 Partial cross-section of the present invention Figure 2 ;

[0052] Figure 7 It is a schematic diagram of the internal structure of the cylinder of the present invention;

[0053] Figure 8 This is a schematic diagram of the structure of the meshing of the second gear and the first gear of the present invention;

[0054] Fig. 9This is a schematic diagram of the structure of the first spiral groove and the second spiral groove of the present invention;

[0055] Fig.10 The figure is a flow chart of the control method steps of the present invention.

[0056] In the figure: 1, frame; 2, mounting frame; 3, extruder; 4, sliding seat; 5, sliding rod; 6, first electric cylinder; 7, mold; 8, first fixed plate; 9, second electric cylinder; 10, insertion hole; 11, cylinder; 12, third electric cylinder; 13, clamping plate; 14, L-shaped plate; 15, guide rail; 1501, oblique groove; 1502, transverse groove; 16, fixing ring; 17, sliding pin; 18, round plate; 19, second fixed plate; 20, bearing; 21, blow tube; 22, air outlet; 23, air supply unit; 24, three-way pipe; 25, flexible pipe; 26, motor; 27, second gear; 28, first gear; 29, rotating frame; 30, connecting plate; 31, round tube; 32, first spiral groove; 33, first pull pin; 34, fixing column; 35, second spiral groove; 36, second pull pin. DETAILED DESCRIPTION

[0057] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0058] like Figures 1 to 9 The blow molding processing mechanism of an automobile filter shown in the figure comprises a frame 1, a mounting frame 2 is symmetrically mounted on the frame 1, an extruder 3 is arranged on the top of the frame 1, and an extrusion head of the extruder 3 is used to extrude the filter preform to be blow molded, and further comprises:

[0059] Two sliding seats 4 are located below the extrusion head of the extruder 3 and are arranged on the surface of the frame 1 through a transverse sliding mechanism. The transverse sliding mechanism is used to drive the two sliding seats 4 to move in the same direction. A clamping mechanism is provided on the top of each sliding seat 4. The clamping mechanism is used to clamp the parison extruded by the extruder 3 to prepare for subsequent blow molding.

[0060] The blowing mechanism is arranged on the frame 1 and is used for blowing the internal mold blank after the mold clamping mechanism is molded;

[0061] Two pressure sensors are used to detect the clamping conditions of the two clamping mechanisms respectively;

[0062] The controller controls the blowing mechanism to blow air into the mold after the mold is closed according to the detection information of the two pressure sensors; when working, the controller can control the blow molding mechanism in an external manner, and two sliding seats 4 with mold closing mechanisms are set through the transverse sliding mechanism. The two mold closing mechanisms are operated alternately, which is conducive to maintaining the continuous blow molding operation of the blow molding mechanism and improving the processing efficiency. Each time the transverse sliding mechanism operates, a sliding seat 4 is switched to move to the blow molding station, and the plastic is extruded downward from the extruder head through the extruder 3 to form a filter mold. The formed filter mold is a flexible but not completely solidified one. state, and then the plastic is clamped by the clamping mechanism on the blow molding station. After the pressure sensor detects that the corresponding clamping mechanism has completed the clamping operation, the controller controls the blowing mechanism to blow the parison clamped inside the clamping mechanism. After the clamping is completed, the lateral sliding mechanism will operate again to move the sliding seat on the blow molding station to the demolding station, and link another sliding seat to move to the blow molding station to continue the blow molding operation. A double station is set for the filter blow molding operation. Compared with the prior art, after the parison is clamped, the parison needs to be blow-molded and demolded before continuing the next filter processing, which improves the processing efficiency.

[0063] As an embodiment of the present invention, the lateral sliding mechanism includes:

[0064] Two slide bars 5 are fixedly mounted between the two mounting frames 2, and each slide seat 4 is slidably connected to the surfaces of the two slide bars 5;

[0065] Two first electric cylinders 6 are fixedly mounted on the tops of the two mounting frames 2, respectively, and the piston rod ends of the two first electric cylinders 6 are fixedly connected to the bottoms of the two sliding seats 4, respectively; when working, the lower part of the extrusion head of the extruder 3 is a mold closing station, and both sides of the mold closing station are demolding stations. The two first electric cylinders 6 are controlled to operate by a controller, and one of the piston rods of the two first electric cylinders 6 is in a contracted state and the other is in an extended state. The operation of the two first electric cylinders 6 will drive the two sliding seats 4 to move in the same direction along the surface of the slide rod 5, and one sliding seat 4 will always be maintained at the mold closing station below the extrusion head of the extruder 3, and the other sliding seat 4 will be maintained at the demolding station, thereby switching the two mold closing mechanisms for use in turn, which is beneficial to maintaining the continuous progress of the blow molding process and ensuring processing efficiency.

[0066] As an embodiment of the present invention, the clamping mechanism includes:

[0067] Two molds 7 are symmetrically slidably connected to the top of the sliding seat 4, and each mold 7 is provided with a first arc hole and a second arc hole at the upper and lower parts thereof;

[0068] Two first fixed plates 8 are symmetrically fixedly connected to the top of the sliding seat 4, and second electric cylinders 9 are fixedly installed on the side walls of the two first fixed plates 8, and the piston rods of the two second electric cylinders 9 are fixedly connected to the side walls of the two molds 7 respectively;

[0069] An insertion hole 10 is formed through the top of the sliding seat 4, and a cylinder 11 is vertically inserted into the insertion hole 10;

[0070] The pushing mechanism is arranged below the sliding seat 4. When the sliding seat 4 moves to the mold closing processing station, the linkage pushing mechanism drives the cylinder 11 to move upward to prepare for the mold closing of the two molds 7.

[0071] The parison clamping component is arranged above the two molds 7 and is used to clamp the parison below the extruder 3 and assist the external scissors in shearing the parison;

[0072] The preform clamping component includes two third electric cylinders 12, which are respectively fixedly mounted on the side walls of the two first fixed plates 8, and the piston rod end of each third electric cylinder 12 is fixedly connected to a clamping plate 13; when working, the lateral sliding mechanism will push the two sliding seats 4 to move in the same direction, and the sliding seat 4 moving to the mold closing station will drive the corresponding cylinder 11 to move upward with the help of the pushing mechanism. When the movement stops, the flexible plastic preform extruded from the extruder 3 will fall downward between the two molds 7 on the mold closing station, and the upper end of the cylinder 11 will be inserted into the inside of the plastic preform, and the controller controls the operation of the two second electric cylinders 9 on the mold closing station, and the piston rods of the two second electric cylinders 9 will push the two molds 7 to the middle for mold closing operation, so that the inner wall of the second arc-shaped hole at the bottom of the two molds 7 fits with the surface of the cylinder 11 after moving upward, and the blow molding cavity after mold closing is formed with the help of the cylinder 11 and the two molds 7. After the mold closing is completed, it is necessary The plastic preform connected to the extruder 3 is sheared with the help of external scissors, the plastic above the two molds 7 is clamped by the preform clamping components, and the plastic is sheared with the help of external scissors. In this process, the shearing force generated by the scissors when shearing the plastic preform will be transmitted to the inside of the mold through the preform, which is easy to cause the preform to shake or deform inside the mold, thereby affecting the expansion and molding effect of the preform. Therefore, before the scissors are sheared, the two third electric cylinders 12 are required to push the two clamping plates 13 to clamp the preform below the extruder 3, which can reduce the shaking of the preform during the shearing process and improve the stability of the preform. At the same time, after the two molds 7 are separated and demolded in the later stage, the two clamping plates 13 are used to continuously clamp the preform, which facilitates the external manipulator to accurately locate the filter after blow molding. After that, the two clamping plates 13 are separated and reset, which is conducive to the external manipulator to successfully complete the filter. After the filter is taken, the next step of cutting is carried out;

[0073] A first arc-shaped hole and a second arc-shaped hole are respectively provided on the upper and lower sides of the mold 7 to facilitate the opening operation of the filter.

[0074] As an embodiment of the present invention, the pushing mechanism includes:

[0075] Two L-shaped plates 14 are symmetrically fixedly connected to the top of the adjacent mounting frames 2. A guide rail 15 is provided on the side wall of each L-shaped plate 14. The guide rail 15 is composed of an oblique groove 1501 and a transverse groove 1502 that are interconnected.

[0076] The fixing ring 16 is fixedly connected to the surface of the cylinder 11, and a sliding pin 17 is symmetrically connected to the surface of the fixing ring 16, and the two sliding pins 17 are respectively inserted into the inside of the two guide rails 15; when working, since the ends of the sliding pins 17 arranged on the surface of the fixing ring 16 are inserted into the inside of the two guide rails 15, when the lateral sliding mechanism pushes the sliding seat 4 to move, the sliding pins 17 will slide along the inner wall of the guide rail 15. In order to facilitate the external manipulator to smoothly remove the blow-molded filter from the demoulding station, the position The sliding pin 17 on the demolding station is inserted at the lowest end of the oblique groove 1501. When the sliding seat 4 moves to the mold closing station, the linked sliding pin 17 slides along the inner wall of the oblique groove 1501 to the transverse groove 1502, and slides transversely along the transverse groove 1502. When the sliding pin 17 slides along the inner wall of the oblique groove 1501, under the guidance of the inner wall of the oblique groove 1501, the sliding pin 17 drives the cylinder 11 to move upward with the help of the fixing ring 16, so that it is convenient to move to the mold closing station and cooperate with the two molds 7 to form a blow molding cavity.

[0077] As an embodiment of the present invention, the blowing mechanism includes:

[0078] A mounting hole is formed through the top of the cylinder 11, and a sealing gasket is provided on the inner wall of the mounting hole;

[0079] The circular plate 18 is arranged inside the cylinder 11 by means of a lifting and inserting component. A second fixing plate 19 is fixedly connected to the top of the circular plate 18. A bearing 20 is fixedly connected to the end of the second fixing plate 19. A blow tube 21 is fixedly connected to the inner ring wall of the bearing 20. Four air outlets 22 are equidistantly provided on the surface of the blow tube 21. The bottom of the blow tube 21 is rotatably connected to the top of the circular plate 18.

[0080] A rotation driving component is arranged on the surface of the blowing cylinder 21 and is used to drive the blowing cylinder 21 to rotate;

[0081] The gas delivery unit 23 is arranged on the frame 1, and the end of the gas outlet pipe of the gas delivery unit 23 is fixedly connected with a three-way pipe 24, and the other two pipe openings of the three-way pipe 24 are equipped with electromagnetic valves. The two pipe openings of the three-way pipe 24 equipped with the electromagnetic valves are respectively fixedly connected with flexible pipes 25, and the upper ends of the two flexible pipes 25 are respectively fixedly connected with the two circular plates 18, and the two flexible pipes 25 are respectively connected with the inside of the corresponding air blowing cylinder 21. The gas delivery unit 23 is used to deliver gas to the inside of the air blowing cylinder 21 by means of the flexible pipe 25;

[0082] The air delivery unit 23 can be an air storage tank; when working, the existing blow molding method is mostly to blow the gas from the end of the preform in a centralized manner. This single-point blowing method easily causes uneven force inside the preform, thereby affecting the shape of the molded article. After the filter blown at the demolding station is removed by an external manipulator, the sliding seat 4 will move to the mold closing station. In this process, the cylinder 11 is pushed upward by the pushing mechanism. The upward movement of the cylinder 11 will link the lifting and inserting components to drive the blowing cylinder 21 to move upward. After the blowing cylinder 21 completes the upward movement, the bearing 20 connected to the surface of the blowing cylinder 21 will move to the mounting hole, and with the help of the sealing gasket on the inner wall of the mounting hole, the outer surface of the bearing 20 and the inner wall of the mounting hole are sealed. Therefore, after the sliding seat 4 reaches the mold closing station, the plastic preform extruded by the extruder 3 will be downwardly sleeved on the surface of the cylinder 11, and the upward-moving blowing cylinder 21 will be inserted into the interior of the preform and installed in the mold. After the pressure sensor on 7 detects that the two molds 7 move toward each other and complete the mold closing, the controller controls the corresponding solenoid valve to open, so that the gas supply unit 23 can deliver the gas to the inside of the blow cylinder 21 through the flexible tube 25, and the controller controls the operation of the rotary drive component, which drives the blow cylinder 21 to rotate with the help of the bearing 20, so that the incoming air flow is injected into the middle of the mold from the air outlet 22 in a rotating manner, which is conducive to more uniform gas distribution and faster completion of the blowing process of the mold, thereby improving production efficiency, and at the same time helping to reduce stress concentration inside the mold, thereby reducing defects caused by stress, helping to improve the mechanical properties and durability of the product, and the air flow entering the mold will blow up the flexible plastic mold and fit the inner walls of the two molds 7. After the mold is blown up and cooled to a certain temperature in the blow molding cavity after the mold closing, it will gradually solidify into a solid, thereby completing the blow molding of the filter;

[0083] The fixed second fixing plate 19 facilitates the limiting of the outer ring of the bearing 20. The rotation of the blowing cylinder 21 drives the inner ring of the bearing 20 to rotate relative to the outer ring, which is beneficial to reducing the rotational friction.

[0084] As an embodiment of the present invention, the rotating driving component includes a first gear 28 and a motor 26, the first gear 28 is fixedly connected to the surface of the blow cylinder 21, the motor 26 is fixedly installed at the bottom of the circular plate 18, and the output shaft end of the motor 26 passes through the circular plate 18 and extends upward and is fixedly connected to the second gear 27, and the second gear 27 is meshed with the first gear 28; when working, after the blow cylinder 21 is inserted into the mold blank inside the blow molding cavity, the controller controls the motor 26 to operate, and the output shaft of the motor 26 will drive the second gear 27 to rotate. Since the second gear 27 is meshed with the first gear 28 fixedly connected to the surface of the blow cylinder 21, when the motor 26 is operating, it will drive the blow cylinder 21 to rotate with the help of the transmission of the second gear 27 and the first gear 28, which is conducive to the rotational delivery of the gas to the inside of the mold blank, and helps to evenly distribute the gas to various parts of the mold blank, so that the force inside the mold blank is even, thereby improving the blow molding accuracy.

[0085] As an embodiment of the present invention, the lifting and inserting component includes:

[0086] The rotating frame 29 is rotatably connected to the bottom of the sliding seat 4. The bottom of the rotating frame 29 is fixedly connected to a round tube 31 through two connecting plates 30. The upper end of the round tube 31 is inserted into the cylinder 11.

[0087] Two first spiral grooves 32 are provided on the surface of the cylinder 11 in a circumferential array;

[0088] Two first pull pins 33 are rotatably connected to the inner wall of the cylinder 11 in a circular array, and the ends of the two first pull pins 33 are respectively inserted into the inside of the two first spiral grooves 32;

[0089] Two clearance holes are symmetrically opened through the top of the circular plate 18;

[0090] Two fixing columns 34 are symmetrically fixedly connected to the inner top surface of the cylinder 11, and the lower ends of the two fixing columns 34 pass through the two clearance holes respectively;

[0091] Two second spiral grooves 35 are formed in a circumferential array on the inner wall of the circular tube 31;

[0092] The two second pull pins 36 are rotatably connected to the surface of the circular plate 18 in a circular array, and the ends of the two second pull pins 36 are respectively inserted into the inside of the two second spiral grooves 35; during operation, in order to make the force inside the mold uniform during blow molding, the blow cylinder 21 needs to be extended into the mold to transport gas, but in order to smoothly remove the filter after blow molding, the blow cylinder 21 needs to be stored, so it is necessary to adaptively change the presentation state of the blow cylinder 21 in time. The technical solution can solve the above problems. The specific implementation method is as follows: since the rotating frame 29 rotatably connected to the bottom of the sliding seat 4 is connected to the cylinder 11 through two connecting plates 30, the operating state of the cylinder 11 is limited. When the sliding seat 4 moves toward the mold closing station and the cylinder 11 is driven to move upward by the pushing mechanism, the two first pull pins 33 that move synchronously with the cylinder 11 will push the two first spiral grooves 35. The inner wall of the groove 32 is pushed, and the inner walls of the two first spiral grooves 32 are stressed, causing the circular tube 31 to rotate 90 degrees. The circular tube 31 that rotates 90 degrees pushes the two second pull pins 36 with the help of the groove walls of the two second spiral grooves 35 on its inner wall, so that the two second pull pins 36 are pulled by force to pull the circular plate 18 up along the surface of the fixed column 34, thereby driving the blow tube 21 to move upward, which is convenient for subsequent blowing operations; the same principle applies when the cylinder 11 moves downward, with the help of the cooperation of the first spiral groove 32 and the first pull pin 33 and the second spiral groove 35 and the second pull pin 36, the blow tube 21 can be automatically driven to be stored in the cylinder 11, so as to avoid the blow tube 21 extending outside affecting the taking of the filter. Therefore, as the cylinder 11 operates, the telescopic storage of the blow tube 21 is automatically adjusted, so as to meet the blow molding needs and facilitate the external manipulator to take the filter;

[0093] Two fixing columns 34 are arranged on the inner top surface of the cylinder 11 , and the circular plate 18 is sleeved on the surfaces of the two fixing columns 34 by means of two clearance holes, which is conducive to making the circular plate 18 only move vertically relative to the rotation of the circular tube 31 .

[0094] like Fig.10 The automobile filter blow molding processing mechanism shown is characterized in that the control method includes the following steps:

[0095] The pressure sensor generates pressure information after detecting that the mold clamping mechanism has completed mold clamping;

[0096] The pressure sensor sends pressure information to the controller to control the blowing mechanism to deliver gas into the clamped preform.

[0097] As an implementation mode of the present invention, the control process after the controller receives the pressure information includes:

[0098] The controller generates first control information and second control information after receiving the pressure information;

[0099] The controller sends the first control information to the gas supply unit 23, controls the gas supply unit 23 to operate, and controls the corresponding solenoid valve to open, so as to realize the gas supply operation into the preform;

[0100] The controller sends the second control information to the rotation driving component to control the rotation driving component to operate so as to drive the blowing cylinder 21 to rotate.

[0101] The working principle of the present invention is as follows: two sliding seats 4 with clamping mechanisms are arranged through a transverse sliding mechanism, and the two clamping mechanisms are operated alternately, which is beneficial to maintaining the continuous blow molding operation of the blow molding processing mechanism and improving the processing efficiency. Each time the transverse sliding mechanism operates, a sliding seat 4 is switched to move to the blow molding station, and the plastic is extruded downward from the extruder head through the extruder 3 to form a filter preform. The formed filter preform is in a flexible but not completely solidified state, and then the plastic is clamped by the clamping mechanism on the blow molding station. After the pressure sensor detects that the corresponding clamping mechanism completes the clamping operation, the controller controls the blowing mechanism to blow the preform clamped inside the clamping mechanism. After the clamping is completed, the transverse sliding mechanism will operate again to move the sliding seat on the blow molding station to the demolding station, and link another sliding seat to move to the blow molding station to continue the blow molding operation. A double station is set to perform the filter blow molding operation. Compared with the prior art, after the preform is clamped, the preform needs to be blown and demolded before continuing the processing of the next filter, which improves the processing efficiency.

[0102] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A blow molding mechanism for an automobile filter, comprising a frame (1), a mounting frame (2) symmetrically mounted on the frame (1), an extruder (3) disposed on the top of the frame (1), an extrusion head of the extruder (3) being used to extrude a filter preform to be blow molded, characterized in that: Also includes: Two sliding seats (4) are located below the extrusion head of the extruder (3) and are arranged on the surface of the frame (1) via a transverse sliding mechanism, the transverse sliding mechanism is used to drive the two sliding seats (4) to move in the same direction, and a clamping mechanism is arranged on the top of each sliding seat (4), the clamping mechanism is used to clamp the preform extruded by the extruder (3) to prepare for subsequent blow molding; An air blowing mechanism, arranged on the frame (1), and used for blowing air to the internal mold blank after the mold clamping mechanism is molded; Two pressure sensors are used to detect the clamping conditions of the two clamping mechanisms respectively; The controller controls the air blowing mechanism to blow air into the mold after the mold is closed according to the detection information of the two pressure sensors; The clamping mechanism comprises: An insertion hole (10) is provided through the top of the sliding seat (4), and a cylinder (11) is vertically inserted into the insertion hole (10); A pushing mechanism is arranged below the sliding seat (4), and when the sliding seat (4) moves toward the mold closing processing station, the linkage pushing mechanism drives the cylinder (11) to move upward to prepare for the mold closing of the two molds (7); The blowing mechanism comprises: A mounting hole is formed through the top of the cylinder (11), and a sealing gasket is provided on the inner wall of the mounting hole; A circular plate (18) is arranged inside the cylinder (11) by means of a lifting and inserting component, the top of the circular plate (18) is fixedly connected to a second fixed plate (19), the end of the second fixed plate (19) is fixedly connected to a bearing (20), an inner ring wall of the bearing (20) is fixedly connected to a blow tube (21), the surface of the blow tube (21) is provided with four air outlets (22) at equal intervals, and the bottom of the blow tube (21) is rotatably connected to the top of the circular plate (18); A rotation driving component is arranged on the surface of the blowing cylinder (21) and is used to drive the blowing cylinder (21) to rotate.

2. The automobile filter blow molding processing mechanism according to claim 1, characterized in that: The lateral sliding mechanism comprises: The two slide bars (5) are fixedly mounted between the two mounting frames (2), and each of the slide seats (4) is slidably connected to the surfaces of the two slide bars (5); Two first electric cylinders (6), the two first electric cylinders (6) are respectively fixedly mounted on the tops of the two mounting frames (2), and the piston rod ends of the two first electric cylinders (6) are respectively fixedly connected to the bottoms of the two sliding seats (4).

3. The automobile filter blow molding processing mechanism according to claim 1, characterized in that: The clamping mechanism also includes: Two molds (7) are symmetrically slidably connected to the top of the sliding seat (4), and each mold (7) is provided with a first arc-shaped hole and a second arc-shaped hole at the upper and lower parts thereof; Two first fixed plates (8) are symmetrically fixedly connected to the top of the sliding seat (4), and second electric cylinders (9) are respectively fixedly mounted on the side walls of the two first fixed plates (8), and the piston rods of the two second electric cylinders (9) are respectively fixedly connected to the side walls of the two molds (7); A parison clamping component, arranged above the two molds (7), used to clamp the parison below the extruder (3) and assist external scissors in shearing the parison; The parison clamping component comprises two third electric cylinders (12), the two third electric cylinders (12) being fixedly mounted on the side walls of the two first fixed plates (8) respectively, and the end of the piston rod of each third electric cylinder (12) being fixedly connected to a clamping plate (13).

4. The automobile filter blow molding processing mechanism according to claim 3, characterized in that: The driving mechanism comprises: Two L-shaped plates (14) are symmetrically fixedly connected to the tops of the adjacent mounting frames (2), and a guide rail (15) is provided on the side wall of each L-shaped plate (14), wherein the guide rail (15) is composed of an oblique groove (1501) and a transverse groove (1502) that are interconnected; A fixed ring (16) is fixedly connected to the surface of the cylinder (11), and a sliding pin (17) is symmetrically rotatably connected to the surface of the fixed ring (16), and the two sliding pins (17) are respectively inserted into the inside of the two guide rails (15).

5. The automobile filter blow molding processing mechanism according to claim 3, characterized in that: The blowing mechanism also includes: A gas delivery unit (23) is arranged on the frame (1); the end of the gas outlet pipe of the gas delivery unit (23) is fixedly connected to a three-way pipe (24); solenoid valves are installed at the other two pipe openings of the three-way pipe (24); the two pipe openings of the three-way pipe (24) on which the solenoid valves are installed are respectively fixedly connected to flexible pipes (25); the upper ends of the two flexible pipes (25) are respectively fixedly connected to the two circular plates (18); and the two flexible pipes (25) are respectively connected to the inside of the corresponding air blowing cylinder (21); the gas delivery unit (23) is used to deliver gas to the inside of the air blowing cylinder (21) by means of the flexible pipe (25).

6. The automobile filter blow molding processing mechanism according to claim 5, characterized in that: The rotary drive component comprises a first gear (28) and a motor (26); the first gear (28) is fixedly connected to the surface of the blow tube (21); the motor (26) is fixedly mounted on the bottom of the circular plate (18); an output shaft end of the motor (26) passes through the circular plate (18) and extends upwards to be fixedly connected to a second gear (27); the second gear (27) and the first gear (28) are meshed with each other.

7. The automobile filter blow molding processing mechanism according to claim 5, characterized in that: The lifting and inserting component comprises: A rotating frame (29) is rotatably connected to the bottom of the sliding seat (4); the bottom of the rotating frame (29) is fixedly connected to a round tube (31) via two connecting plates (30); the upper end of the round tube (31) is inserted into the cylinder (11); Two first spiral grooves (32) are arranged in a circular array on the surface of the cylinder (11); Two first pull pins (33) are rotatably connected to the inner wall of the cylinder (11) in a circular array, and the ends of the two first pull pins (33) are respectively inserted into the inside of the two first spiral grooves (32); Two clearance holes are symmetrically opened through the top of the circular plate (18); Two fixing columns (34) are symmetrically fixedly connected to the inner top surface of the cylinder (11), and the lower ends of the two fixing columns (34) respectively pass through the two clearance holes; Two second spiral grooves (35) are arranged in a circular array on the inner wall of the circular tube (31); Two second pull pins (36) are rotatably connected to the surface of the circular plate (18) in a circular array, and the ends of the two second pull pins (36) are respectively inserted into the inside of the two second spiral grooves (35).

8. A control method for an automobile filter blow molding mechanism, applicable to the automobile filter blow molding mechanism according to claim 5, characterized in that: The control method comprises the following steps: The pressure sensor generates pressure information after detecting that the mold clamping mechanism has completed mold clamping; The pressure sensor sends pressure information to the controller to control the blowing mechanism to deliver gas into the clamped preform.

9. The control method of a blow molding mechanism for an automobile filter according to claim 8, characterized in that: The control process after the controller receives the pressure information includes: The controller generates first control information and second control information after receiving the pressure information; The controller sends the first control information to the gas delivery unit (23), controls the gas delivery unit (23) to operate, and controls the corresponding solenoid valve to open, so as to realize the gas delivery operation into the interior of the preform; The controller sends the second control information to the rotation driving component to control the rotation driving component to operate, so as to drive the blowing cylinder (21) to rotate.

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