Automatic oil port cutting device for plastic oil tank

Abstract

The utility model discloses an automatic oil port cutting device for a plastic oil tank, which is characterized by comprising an oil tank fixed die, an oil port cutting assembly is arranged on the oil tank fixed die, the oil port cutting assembly comprises a movable plate arranged on one side of the oil tank fixed die, a main mounting plate is arranged above the movable plate, a rotating shaft is arranged on the main mounting plate, and the rotating shaft is connected with the oil tank fixed die. A vertically telescopic cutter is arranged on the rotating shaft, the rotating track of the cutter is matched with the size of an oil port in an oil tank, a shaft hole in the axis direction is formed in the rotating shaft, a vertically movable puncture needle is arranged in the shaft hole, and a driving device is arranged on the rotating shaft and used for driving the rotating shaft to rotate. The device has the advantages that the device is integrated on the blow molding die, so that the oil tank can be machined and formed at a time conveniently, procedures are reduced, production efficiency is improved, labor intensity of workers is reduced, and cut parts are not prone to falling into the oil tank.

Description

Technical Field

[0001] The utility model relates to the field of blow molding molds, in particular to an automatic oil port cutting device for a plastic oil tank. Background Art

[0002] Automobile fuel tank is the full name of automobile fuel tank. At present, with the development of automobile industry and the revitalization of domestic automobile industry, the demand of automobile fuel tanks by major automobile manufacturers is showing a significant growth trend. In the production process of automobile fuel tanks, blow molding is an indispensable procedure, and blow molding equipment is used to blow mold the fuel tank.

[0003] Blow-molded fuel tanks require pre-embedded fuel port, bolts, nuts and other inserts on the fuel tank, but the fuel port of the blow-molded fuel tank is in a closed state after blow molding. The prior art adds a process of cutting the oil port after the fuel tank is formed, and manually aligns the oil port with the cutting tool to open the fuel port. The processing efficiency is low, the labor intensity of workers is high, and the production rhythm is seriously affected. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides an automatic oil port cutting device for a plastic oil tank, which is used to be installed on a blow molding mold and automatically cuts the oil port after the oil tank is formed, thereby reducing the number of steps in one-time molding.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic oil port cutting device for a plastic oil tank is characterized in that it includes a fixed mold for the oil tank, an oil port cutting assembly is arranged on the fixed mold for the oil tank, the oil port cutting assembly includes a movable plate arranged on one side of the fixed mold for the oil tank, a main mounting plate is arranged above the movable plate, a rotating shaft is arranged on the main mounting plate, a vertically retractable cutter is arranged on the rotating shaft, the rotation trajectory of the cutter is adapted to the size of the oil port on the oil tank, the rotating shaft has an axial hole along the axial direction, a vertically movable puncture needle is arranged in the axial hole, and a driving device is arranged on the rotating shaft for driving the rotating shaft to rotate.

[0007] Furthermore, lifting cylinders for lifting the movable plate are arranged on both sides of the oil tank fixed mold, and the front ends of the piston rods of the lifting cylinders are clamped with the movable plate through an annular groove.

[0008] Furthermore, a first bearing is provided on the main mounting plate, the rotating shaft cooperates with the inner ring of the first bearing, a guide sleeve is provided on the movable plate, the lower end of the guide sleeve extends into the oil tank fixed mold, and the lower part of the rotating shaft cooperates with the guide sleeve.

[0009] Furthermore, a cylinder mounting plate is arranged above the main mounting plate, a first telescopic cylinder is arranged on the cylinder mounting plate, and a piston rod of the first telescopic cylinder is connected to the rear end of the puncture needle.

[0010] Furthermore, the rear end of the cutter has a limiting portion, and a limiting plate is provided between the cylinder mounting plate and the main mounting plate. The limiting portion at the rear end of the cutter is axially limited in an annular groove of the limiting plate, and the limiting portion at the rear end of the cutter rotates in the annular groove. A second telescopic cylinder for driving the limiting plate to vertically lift and lower is provided on the cylinder mounting plate.

[0011] Furthermore, the driving device includes a driving gear arranged on the rotating shaft, an installation gap is provided between the main mounting plate and the movable plate, the driving gear is located at the installation gap, a driving gear is rotatably arranged between the main mounting plate and the movable plate, the driving gear is meshed with the driving gear, and a motor for driving the driving gear is provided on the main mounting plate.

[0012] Furthermore, a fuel tank port positioning block is provided at the lower end of the rotary shaft, and the fuel tank port positioning block has a through hole for the cutter and the puncture needle to pass through.

[0013] The beneficial effects of the utility model include: being integrated on the blow molding mold facilitates one-time processing and molding of the oil tank, reduces working procedures, improves production efficiency, reduces the labor intensity of workers, and the cut-off part is not easy to fall into the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 Sectional view of AA in the middle;

[0016] Figure 3 yes Figure 1 Cross-sectional view of BB. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0018] A kind of Figure 1-3The automatic oil port cutting device for a plastic oil tank shown in the figure comprises an oil tank fixed mold 1, wherein the oil tank fixed mold is provided with a plurality of insert installation positions, such as a nut insert, a screw insert and an oil tank port insert. An oil port cutting assembly is provided on the oil tank fixed mold 1 at the position corresponding to the oil tank port insert, and the oil port cutting assembly comprises a movable plate 2 provided on one side of the oil tank fixed mold 1, a main mounting plate 3 is provided above the movable plate 2, a rotary shaft 4 is provided on the main mounting plate 3, a first bearing 8 is provided on the main mounting plate 3, the rotary shaft 4 cooperates with the inner ring of the first bearing 8, a guide sleeve 9 is provided on the movable plate 2, the lower end of the guide sleeve 9 extends into the oil tank fixed mold 1, and the lower part of the rotary shaft 4 cooperates with the guide sleeve 9. An oil tank port positioning block 17 is provided at the lower end of the rotary shaft 4. The oil tank port positioning block 17 has a through hole for the cutter 5 and the puncture needle 6 to pass through.

[0019] A vertically telescopic cutter 5 is arranged on the rotary shaft 4. The rotation trajectory of the cutter 5 is adapted to the size of the oil port on the oil tank. The rear end of the cutter 5 has a limit portion. A limit plate 12 is arranged between the cylinder mounting plate 10 and the main mounting plate 3. The limit portion at the rear end of the cutter 5 is axially limited in the annular groove of the limit plate 12, and the limit portion at the rear end of the cutter 5 rotates in the annular groove. A cylinder mounting plate 10 is arranged above the main mounting plate 3. A second telescopic cylinder 13 is arranged on the cylinder mounting plate 10 to drive the limit plate 12 to rise and fall vertically. A driving device is arranged on the rotary shaft 4 to drive the rotary shaft 4 to rotate.

[0020] The driving device includes a driving gear 14 arranged on the rotating shaft 4, there is an installation gap between the main mounting plate 3 and the movable plate 2, the driving gear 14 is located at the installation gap, a driving gear 15 is rotatably arranged between the main mounting plate 3 and the movable plate 2, the driving gear 15 is meshed with the driving gear 14, and a motor 16 for driving the driving gear 15 is arranged on the main mounting plate 3. The cutter 5 is retracted during blow molding, and the cutter 5 is extended and inserted into the oil port for rotational cutting after the oil tank is finalized.

[0021] To prevent the cut-off part from falling into the oil tank, the rotating shaft 4 has an axial hole along the axial direction, and a vertically movable puncture needle 6 is arranged in the axial hole. A cylinder mounting plate 10 is arranged above the main mounting plate 3, and a first telescopic cylinder 11 is arranged on the cylinder mounting plate 10. The piston rod of the first telescopic cylinder 11 is connected to the rear end of the puncture needle 6.

[0022] Lifting cylinders 7 for lifting the movable plate 2 are arranged on both sides of the fixed mold 1 of the oil tank, and the front end of the piston rod of the lifting cylinder 7 is clamped with the movable plate 2 through the ring groove. The oil cut port assembly is completely lifted up by the lifting cylinder to facilitate the demoulding of the oil tank oil port, and the cut oil port plastic sheet is taken out of the oil tank port insert to prevent it from falling into the oil tank.

[0023] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An automatic oil port cutting device for a plastic oil tank, characterized in that: The invention comprises an oil tank fixed mold (1), wherein the oil tank fixed mold (1) is provided with an oil cutout assembly, wherein the oil cutout assembly comprises a movable plate (2) arranged on one side of the oil tank fixed mold (1), wherein a main mounting plate (3) is arranged above the movable plate (2), wherein a rotary shaft (4) is arranged on the main mounting plate (3), wherein a vertically retractable cutter (5) is arranged on the rotary shaft (4), wherein the rotation trajectory of the cutter (5) is adapted to the size of the oil opening on the oil tank, wherein the rotary shaft (4) has an axial hole along the axial direction, wherein a vertically movable puncture needle (6) is arranged in the axial hole, and wherein a driving device is arranged on the rotary shaft (4) for driving the rotary shaft (4) to rotate.

2. The automatic oil cut-out device for a plastic oil tank according to claim 1, characterized in that: Lifting cylinders (7) for lifting the movable plate (2) are arranged on both sides of the oil tank fixed mold (1), and the front end of the piston rod of the lifting cylinder (7) is clamped with the movable plate (2) through a ring groove.

3. The automatic oil cut-out device for a plastic oil tank according to claim 1, characterized in that: The main mounting plate (3) is provided with a first bearing (8), the rotary shaft (4) cooperates with the inner ring of the first bearing (8), the movable plate (2) is provided with a guide sleeve (9), the lower end of the guide sleeve (9) extends into the oil tank fixed mold (1), and the lower part of the rotary shaft (4) cooperates with the guide sleeve (9).

4. The automatic oil cut-out device for a plastic oil tank according to claim 1, characterized in that: A cylinder mounting plate (10) is arranged above the main mounting plate (3), and a first telescopic cylinder (11) is arranged on the cylinder mounting plate (10), wherein the piston rod of the first telescopic cylinder (11) is connected to the rear end of the puncture needle (6).

5. The automatic oil cut-out device for a plastic oil tank according to claim 4, characterized in that: The rear end of the cutter (5) has a limiting portion, and a limiting plate (12) is provided between the cylinder mounting plate (10) and the main mounting plate (3). The limiting portion at the rear end of the cutter (5) is axially limited in an annular groove of the limiting plate (12), and the limiting portion at the rear end of the cutter (5) rotates in the annular groove. A second telescopic cylinder (13) for driving the limiting plate (12) to vertically rise and fall is provided on the cylinder mounting plate (10).

6. The automatic oil cut-out device for a plastic oil tank according to claim 1, characterized in that: The driving device comprises a driving gear (14) arranged on the rotating shaft (4); a mounting gap is provided between the main mounting plate (3) and the movable plate (2); the driving gear (14) is located at the mounting gap; a driving gear (15) is rotatably provided between the main mounting plate (3) and the movable plate (2); the driving gear (15) meshes with the driving gear (14); and a motor (16) for driving the driving gear (15) is provided on the main mounting plate (3).

7. The automatic oil cut-out device for a plastic oil tank according to claim 1, characterized in that: The lower end of the rotary shaft (4) is provided with an oil tank opening positioning block (17), and the oil tank opening positioning block (17) has a through hole for the cutter (5) and the puncture needle (6) to pass through.

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