Blank moving blow molding machine

Abstract

The utility model relates to a blank moving blow molding machine. A left mold and a right mold are arranged in the center of a molding machine base in a relative moving manner, and a lifting loading table is arranged below the mold closing center of the left mold and the right mold; a liquid collector, a GVV gravity valve, a supporting column and a washboard with a built-in pipeline are integrally connected to a movable seat of the washboard conveying track in a penetrating mode through a washboard penetrating rod, and a clamping jaw of the washboard loading manipulator grabs the washboard penetrating rod on the movable seat and sends the washboard penetrating rod to the lifting loading table to be inserted and positioned; the hand end of the blank moving manipulator is connected with a blank moving clamping frame, two moving clamping seats are arranged on the blank moving clamping frame, and the outer ends of blank moving clamping rods on the moving clamping seats are connected with blank moving chucks. According to the blow molding machine, an initial parison extruded by the extrusion die head is pinched off through the parison moving manipulator, is expanded and then is moved to the die assembly center of the left die and the right die, the washboard is clamped by combining the washboard loading manipulator and is fed into the washboard integrated with all the components through the lifting loading table, the washboard is integrally completed, all the components are integrally blow-molded in the initial parison, and the production efficiency is improved. And the blow molding efficiency and quality are high.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank technology, and specifically to a transfer blow molding machine. Background Technology

[0002] With the implementation of the China VI emission standard (Phase b), the control requirements for fuel evaporation emissions have significantly increased. Traditional gasoline vehicles rely on carbon canisters to adsorb vapors, but the capacity of carbon canisters is limited. High-pressure fuel tanks, through structural reinforcement and intelligent valve linkage such as the FTIV isolation valve, achieve dynamic vapor sealing and directional emission, overcoming the bottleneck of adapting atmospheric pressure fuel tanks to hybrid vehicles. In existing high-pressure fuel tank structures, various components such as baffles, liquid collectors, and various exhaust valves and pipelines are built-in. These components are directly blow-molded and connected to the inner wall of the tank during the fuel tank blow molding process. During the blow molding operation, each component needs to be installed individually, affecting the blow molding time and efficiency. The long installation time of multiple components can easily affect the temperature of the blow-molded material and subsequent molding. At the same time, connecting multiple components to the inner wall of the high-pressure fuel tank has a significant impact on the overall thickness of the tank and the thickness and strength of the connection parts, which is not conducive to the stability of the blow molding quality of the high-pressure fuel tank. Summary of the Invention

[0003] This invention provides a transfer blow molding machine that is easy to operate and produces high-quality blow molding.

[0004] The technical solution adopted by this utility model is: a transfer blow molding machine, including a mold base and an extrusion die head, with left and right molds moved and fed in a centrally opposite or back-to-back manner on the mold base. The key feature is that: a lifting loading platform, pneumatically or hydraulically movable, is also provided at the center of the mold base below the mold closing center of the left and right molds, and the lifting loading platform is provided with loading positioning holes; it also includes a baffle plate loading device and a transfer device. The baffle plate loading device includes a baffle plate loading robot, a baffle plate conveying track, and a baffle plate connecting rod. A movable positioning hole is provided on the movable seat of the baffle plate conveying track. The lower part of the baffle plate connecting rod is a positioning section, the cross-section of which corresponds to the loading positioning hole and the movable positioning hole in a fixed, non-rotating state. The upper part of the baffle plate connecting rod is an integrated connecting assembly. The wave deflector, GVV gravity valve, support column, and built-in pipeline of the baffle plate are connected to the clamping section of the baffle plate insertion manipulator. The clamping section of the baffle plate insertion rod in the middle of the manipulator grips the baffle plate insertion rod on the moving seat and sends it to the lifting loading platform and inserts it into the loading positioning hole. The blank transfer device includes a blank transfer manipulator, a blank transfer clamping frame, a moving clamping seat, a blank transfer clamping rod, and a blank transfer chuck. The hand end of the blank transfer manipulator is connected to the blank transfer clamping frame. Two moving clamping seats are provided on the blank transfer clamping frame and are pneumatically guided to move in opposite or opposite directions. The blank transfer clamping rod is vertically connected to the moving clamping seat. The outer end of the blank transfer clamping rod is connected to the blank transfer chuck. The blank transfer chuck moves with the blank transfer manipulator and clamps the initial blank extruded by the extrusion die head to the left and right die closing center or above the loading positioning hole.

[0005] Furthermore, the blank transfer chuck includes a chuck seat connected to a movable clamping rod. The chuck seat has an inner clamping plate, and rotating clamping plates are respectively provided on both sides of the inner clamping plate. The rotating clamping plates are rotatably hinged to the chuck seat and are in a state of rotating around the hinge point from the outside to the inside center driven by a pneumatic push rod. Alternatively, the inner end of the rotating clamping plate is connected to a rotating cylinder fixed on the chuck seat and is in a state of rotating around the rotating cylinder from the outside to the inside center driven by the rotating cylinder. Multiple vacuum suction ports facing inward are provided on the rotating clamping plates and the inner clamping plate.

[0006] Furthermore, the blank-transferring robot is provided with a blank-transferring track that is vertically oriented towards the mold base, and the blank-transferring robot is mounted on the blank-transferring track via a robot track seat.

[0007] Furthermore, the blank-transferring robot is located on a different side from the mold base and the anti-surge plate loading device.

[0008] Furthermore, the lifting and lowering control of the lifting and lowering platform is linked with the mold closing control of the left and right molds on the molding machine base.

[0009] Furthermore, the mold cavities of the left and right molds are provided with top pillars corresponding to the support pillars, and the top pillars on the left and right molds are telescopic control structures in the direction of the support pillars; the mold cavity of the left or right mold is provided with a blow molding head corresponding to the fuel pump assembly port.

[0010] During blow molding operations:

[0011] (1) Initial position: The left and right molds are separated on the molding machine base, and the lifting loading platform in the middle position is lowered;

[0012] (2) Loading of wave deflector: The wave deflector, which integrates liquid collector, GVV gravity valve, support column and built-in pipeline, is inserted into the corresponding through section of the wave deflector through section on the upper part of the wave deflector through section on the moving seat of the wave deflector conveying track through section corresponding to the hole on the wave deflector. The wave deflector through section moves with the moving seat to the stroke range of the wave deflector loading robot. The wave deflector robot rotates to the middle part of the wave deflector through section and clamps the clamping section in the middle part of the wave deflector through section. The positioning section at the lower part of the wave deflector through section is pulled out of the moving positioning hole of the moving seat and transferred with the wave deflector robot to the corresponding loading positioning hole above the lifting loading platform. The positioning section at the lower part of the wave deflector through section is inserted into the loading positioning hole and the wave deflector robot is reset.

[0013] (3) Loading the blank: The extrusion die extrudes the initial blank, and the blank transfer robot moves the blank transfer chuck on the blank transfer clamping frame to the position of the upper opening of the initial blank. The relative movement of the moving clamping seat is controlled so that the blank transfer clamping rod drives the blank transfer chuck to center and clamp. After the rotation is controlled by the pneumatic control of the middle clamping plate on the inner side of the chuck seat of the blank transfer chuck, the two blank transfer chucks are centered and closed to clamp the initial blank from below the extrusion die. Combined with the vacuum suction port, the initial blank is vacuum-clamped. Under the drive of the blank transfer robot, the clamped initial blank is moved to the mold closing center position of the left and right molds, facing downward to the anti-wave plate. The middle clamping plate of the two blank transfer chucks and the rotating clamping plates on both sides work together to clamp and clamp the initial blank below the extrusion die. After clamping, the blank transfer chucks move outward in opposite directions on the blank transfer clamping frame, causing the initial blank that was compressed and contracted during clamping to expand outward.

[0014] (4) Mold closing: After the lifting loading platform is raised and the anti-wave plate is sent in from the bottom of the initial blank, the left and right molds are closed on the plastic molding machine base. The top columns of the left and right molds correspond to the top columns of the initial blank so that their inner walls press against the support columns of the anti-wave plate, positioning the initial blank and the anti-wave plate. At the same time, the lifting loading platform is lowered and the anti-wave plate is removed from the anti-wave plate through the through section of the anti-wave plate connecting rod and lowered. When the left and right molds are closed, the anti-wave plate through rod is completely removed. The blank transfer robot releases the clamp on the initial blank and resets.

[0015] (5) Blow molding: After the left and right molds are closed, the blow molding head extends from the left or right mold to perform blow molding operation at the fuel pump assembly port position corresponding to the initial blank. After blow molding, the left and right molds are water cooled, separated, and automatically unloaded to form the high-pressure oil tank.

[0016] While the transfer robot is rotating, the robot rail seat at the bottom of the transfer robot moves along the transfer rail toward the mold base.

[0017] The beneficial effects of this utility model are as follows: The anti-surge plate integrates pre-installed liquid collectors, GVV gravity valves, support columns, and built-in pipelines. Positioned on the anti-surge plate connecting rod on the anti-surge plate conveying track moving seat, it moves to the position of the anti-surge plate robot arm, where the robot arm grippers grasp the connecting rod and deliver it to the lifting loading platform below the center of the left and right molds for positioning. Combined with the blank transfer robot arm, the blank transfer chuck is delivered to the upper opening position of the extrusion die head to extrude the comfort blank. The two blank transfer chucks are aligned and clamped by the middle clamping plate and the rotating clamping plates on both sides, and then clamped by the vacuum suction ports of the middle and rotating clamping plates, completing the hexagonal clamping of the initial blank's upper opening. The blank transfer robot arm can directly rotate to the upper lifting loading platform below the center of the left and right molds, or combine with the blank transfer track... The guide rail moves the initial preform to the center of the left and right molds, avoiding the problem of excessive internal temperature damage to the components caused by the traditional method of directly sending the initial preform to the center of the left and right molds via the extrusion die. After being clamped and expanded, the initial preform is moved between the left and right molds, where the internal temperature is appropriately reduced. After being sent into the baffle plate, it is ensured that it is not damaged by excessive temperature, thus improving the quality of subsequent blow molding. Blow molding is completed through the positioning and clamping support column and the blow molding head through the fuel pump assembly port of the initial preform. The liquid collector, GVV gravity valve, support column and built-in pipeline integrated on the baffle plate are not integrally blow molded with the inner wall of the initial preform, which can greatly reduce the unevenness of the inner wall thickness caused by the connection of multiple components to the inner wall of the initial preform, thus comprehensively improving the cooling of blow molding. Attached Figure Description

[0018] Figure 1 This is a top view of the structure of this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the A-axis structure of the billet-moving robot;

[0020] Figure 3 for Figure 1 Schematic diagram of the B-axis structure of the manipulator in the middle wave deflector;

[0021] Figure 4 This is a schematic diagram of the structure for the wave deflector connecting rod.

[0022] In the diagram: 1. Mold base; 2. Left mold; 3. Right mold; 4. Top column; 5. Blow head; 6. Lifting loading platform; 7. Loading positioning hole; 8. Anti-surge plate loading robot; 9. Gripper; 10. Anti-surge plate conveying track; 11. Moving seat; 12. Moving positioning hole; 13. Anti-surge plate connecting rod; 14. Connecting section; 15. Clamping section; 16. Positioning section; 17. Anti-surge plate; 18. Anti-surge plate connecting interface; 19. Support column; 20. Liquid collector; 21. GV gravity valve; 22. Billet transfer robot; 23. Billet transfer clamping frame; 24. Moving clamping seat; 25. Billet transfer clamping rod; 26. Billet transfer chuck; 27. Chuck seat; 28. Intermediate clamping plate; 29. ​​Rotary cylinder; 30. Rotary clamping plate; 31. Vacuum suction head; 32. Billet transfer track; 33. Robotic arm track seat; 34. Extrusion die head. Detailed Implementation

[0023] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0024] Figure 1-4 As shown, a transfer blow molding machine includes a mold base 1, a left mold 2, a right mold 3, a lifting loading platform 6, a baffle loading robot 8, grippers 9, a baffle conveying track 10, a moving seat 11, a baffle connecting rod 13, a transfer robot 22, a transfer clamping frame 23, a moving clamping seat 24, a transfer clamping rod 25, a transfer chuck 26, a chuck seat 27, an intermediate clamping plate 28, a rotary cylinder 29, a rotary clamping plate 30, a vacuum suction head 31, a transfer track 32, a robot track seat 33, and an extrusion die head 34.

[0025] like Figure 4 As shown, the blow molding machine has a baffle plate 17 with a baffle plate through-hole 18. The baffle plate 17 is integrated with multiple pre-installed support columns 19 and is equipped with a liquid collector 20 and one or more GV gravity valves 21.

[0026] The molding machine base 1 has left and right molds 2 and 3 that move in opposite directions or towards each other. The inner cavities of the left and right molds 2 and 3 are equipped with corresponding support columns 19 and telescopic top columns 4. Each mold also has a blow molding head 5 for blow molding the fuel pump assembly port of the high-pressure fuel tank. The molding machine base 1 also has a lifting loading platform 6 located below the mold closing center of the left and right molds, which can be pneumatically or hydraulically raised and lowered. The lifting loading platform 6 has loading positioning holes 7.

[0027] A wave deflector loading robot 8 and a wave deflector conveying track 10 are installed on one side of the mold base 1. A movable positioning hole 12 is provided on the movable seat 11 of the wave deflector conveying track 10. The lower part of the wave deflector connecting rod 13 is a positioning section 16. The cross section of the positioning section 16 corresponds to the loading positioning hole 7 and the movable positioning hole 12 in a fixed insertion and non-rotational state. The upper part of the wave deflector connecting rod 13 is the connecting section 14 of the wave deflector connecting interface 18 of the integrated liquid collector, GVV gravity valve, support column and built-in pipeline of the wave deflector 17. The gripper 9 of the wave deflector loading robot 8 corresponds to the clamping section 15 in the middle of the wave deflector connecting rod 12, which is in a state of grabbing the wave deflector connecting rod on the movable seat and sending it to the lifting loading platform and inserting it into the loading positioning hole.

[0028] On the other side of the mold base 1, an extrusion die head 34 and a blank transfer track 32 are correspondingly arranged. The blank transfer track 32 is arranged perpendicular to the mold closing direction of the mold base 1. A robot arm track seat 33 is movably mounted on the blank transfer track 32. A blank transfer robot arm 22 is mounted on the robot arm track seat 33. The hand end of the blank transfer robot arm 22 is connected to a blank transfer clamping frame 23. Two movable clamping seats 24 are arranged on the blank transfer clamping frame 23, which are pneumatically guided to move in opposite or back-to-back directions. A blank transfer clamp is vertically connected to the movable clamping seat 24. The outer end of the clamping rod 25 is connected to the transfer chuck 26. The chuck seat 27 of the transfer chuck 26 is connected to the moving clamping rod 25. The chuck seat 27 is provided with an intermediate clamping plate 28 facing inward. Rotating clamping plates 30 are provided on both sides of the intermediate clamping plate 28. The inner end of the rotating clamping plate 30 is connected to a rotating cylinder 29 fixed on the chuck seat. The rotating plate 30 is driven by the rotating cylinder to rotate around the rotating cylinder from the outside to the middle of the inside. Multiple vacuum suction ports 31 facing inward are provided on the rotating clamping plate and the intermediate clamping plate.

[0029] In this embodiment, the lifting control of the lifting and turning platform is linked with the mold closing control of the left and right molds on the molding machine base.

[0030] The blow molding method of this transfer blow molding machine includes the following steps:

[0031] (1) Initial position: The left and right molds 2 and 3 are separated on the plastic molding machine base 1, and the lifting loading platform 6 in the middle position is lowered;

[0032] (2) Loading of wave deflector: The wave deflector 17, which integrates a liquid collector, GVV gravity valve, support column and built-in pipeline, is inserted into the through section 14 of the wave deflector through section 18 on the wave deflector 17 and set on the moving seat 11 of the wave deflector conveying track 10. The wave deflector through section 13 moves with the moving seat 11 to the stroke range of the wave deflector loading robot 8. The wave deflector robot 8 rotates to the middle of the wave deflector through section 15 in the middle of the wave deflector through section 13 by the gripper 9. The positioning section 16 at the bottom of the wave deflector through section 13 is pulled out of the moving positioning hole 12 of the moving seat 11 and transferred with the wave deflector robot 8 to the corresponding loading positioning hole 7 above the lifting loading platform 6. The positioning section 16 at the bottom of the wave deflector through section 13 is inserted into the loading positioning hole 7 and the wave deflector robot 8 is reset.

[0033] (3) Loading the blank: The extrusion die 34 extrudes the initial blank, and the blank transfer robot 22 drives the blank transfer clamp 23 to align the blank transfer chuck 26 with the upper position of the initial blank. The control of the moving clamping seat 24 to move relative to each other causes the blank transfer clamping rod 25 to drive the blank transfer chuck 26 to center and clamp. After the blank transfer chuck 26 is pneumatically rotated by the middle clamping plate 28 on the inner side of the chuck seat 27 and the rotating clamping plates 30 on both sides, the two blank transfer chucks are centered and closed to clamp the initial blank from below the extrusion die. Combined with the vacuum suction port 31, the initial blank is vacuum-clamped. Under the drive of the blank transfer robot 22, the clamped initial blank is moved to the mold closing center position of the left and right molds 2 and 3, facing downwards to the anti-wave plate 17.

[0034] (4) Mold closing: After the lifting loading platform 6 is raised and the anti-wave plate 17 is sent into the initial blank from the bottom, the left and right molds 2 and 3 are closed on the plastic mold base 1. The top column 4 of the left and right molds 2 and 3 corresponds to the top column of the initial blank so that its inner wall presses against the support column 18 of the anti-wave plate 17, positioning the initial blank and the anti-wave plate. At the same time, the lifting loading platform 6 is lowered and the anti-wave plate 17 is removed from the anti-wave plate 17 by the through section 14 of the anti-wave plate connecting rod 13 and lowered. When the left and right molds 2 and 3 are closed, the anti-wave plate connecting rod 13 is completely removed. The blank transfer robot 22 releases the clamp on the initial blank and resets.

[0035] (5) Blow molding: After the left and right molds 2 and 3 are closed, the blow molding head 5 extends from the left or right mold to perform blow molding operation at the fuel pump assembly port position on the initial blank. After blow molding, the left and right molds are water cooled, separated, and automatically unloaded to form a high-pressure oil tank.

[0036] In this embodiment, the movement of the blank transfer robot 22 toward the mold base 1 is accomplished by the robot track seat 33 at its bottom moving on the blank transfer track 32.

[0037] In this embodiment, the lifting and lowering of the loading platform, the extension and retraction of the top column, the extension and retraction of the left and right molds, the rotation of the rotating clamping plate, and the relative or opposite movement of the moving clamping seat on the moving clamping frame are all existing technologies. Existing technologies all have similar pneumatic, electric, or screw-driven control structures, which will not be described in detail in this embodiment.

Claims

1. A transfer blow molding machine, comprising a mold base and an extrusion die head, wherein left and right molds are centrally opposite or back-to-back on the mold base for feeding, characterized in that: The molding machine base also includes a lifting and loading platform located below the center of the left and right mold closing points, which can be pneumatically or hydraulically raised and lowered. The lifting and loading platform has loading and positioning holes. It also includes a baffle plate loading device and a blank-moving device. The baffle plate loading device includes a baffle plate loading robot, a baffle plate conveying track, and a baffle plate connecting rod. The movable seat of the baffle plate conveying track has a movable positioning hole. The lower part of the baffle plate connecting rod is a positioning section, with its cross-section corresponding to the loading and movable positioning holes in a fixed, non-rotating state. The upper part of the baffle plate connecting rod is a connecting section for the integrated liquid collector, GVV gravity valve, support column, and built-in pipeline of the baffle plate. The baffle plate is loaded... The gripper of the robotic arm, corresponding to the clamping section in the middle of the anti-surge plate connecting rod, grasps the anti-surge plate connecting rod on the moving seat and sends it to the lifting loading platform and inserts it into the loading positioning hole. The blank transfer device includes a blank transfer robotic arm, a blank transfer clamping frame, a movable clamping seat, a blank transfer clamping rod, and a blank transfer chuck. The hand end of the blank transfer robotic arm is connected to the blank transfer clamping frame. Two movable clamping seats are provided on the blank transfer clamping frame and are pneumatically guided to move in opposite or opposite directions. The blank transfer clamping rod is vertically connected to the movable clamping seat. The outer end of the blank transfer clamping rod is connected to the blank transfer chuck. The blank transfer chuck moves with the blank transfer robotic arm and clamps the initial blank extruded by the extrusion die head to the left and right die closing center or above the loading positioning hole.

2. The transfer blow molding machine according to claim 1, characterized in that: The blank transfer chuck includes a chuck seat connected to a movable clamping rod. The chuck seat has an inner clamping plate, and rotating clamping plates are respectively provided on both sides of the inner clamping plate. The rotating clamping plates are rotatably hinged to the chuck seat and are in a state of rotating around the hinge point from the outside to the middle by a pneumatic push rod. Alternatively, the inner end of the rotating clamping plate is connected to a rotating cylinder fixed on the chuck seat and is in a state of rotating around the rotating cylinder from the outside to the middle by the rotating cylinder. Multiple inward-facing vacuum suction ports are provided on the rotating clamping plates and the inner clamping plate.

3. The transfer blow molding machine according to claim 1, characterized in that: The blank transfer robot is provided with a blank transfer track that is vertically oriented towards the mold base, and the blank transfer robot is mounted on the blank transfer track via a robot track seat.

4. A transfer blow molding machine according to claim 1 or 3, characterized in that: The blank-transfer robot is located on a different side from the mold base and the anti-surge plate loading device.

5. A transfer blow molding machine according to claim 1, characterized in that: The lifting and turning platform is linked to the mold closing control of the left and right molds on the molding machine base.

6. A transfer blow molding machine according to claim 1, characterized in that: The left and right mold cavities are equipped with corresponding support columns, and the top columns on the left and right molds are telescopic control structures that extend and retract toward the support columns; the left or right mold cavity is equipped with a blow molding head corresponding to the fuel pump assembly port.

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