A necking device for an oil reservoir

Abstract

The utility model relates to a kind of oil storage cylinder necking device, including installation mould, the oil storage cylinder installation slot being opened in the top of installation mould, the extrusion mould being located in the top of installation mould, the necking passage being opened in the extrusion mould, the guide element being located in the bottom of necking passage and being used to guide oil storage cylinder to be pressed into necking passage, top pressure grinding element slidingly connected in necking passage top pressure oil storage cylinder, top pressure grinding element is polished to the necking end of oil storage cylinder by rotating when lifting.The utility model makes the edge of the necking one end of oil storage cylinder smooth and flat, effectively eliminates burr, flash or sharp edge that can be generated in necking process, makes product edge smooth and flat, improves the safety of product, also facilitates subsequent assembly operation, actively applies thrust to the processed end of oil storage cylinder in necking process, effectively prevents that oil storage cylinder is jammed or stuck in mould due to material deformation or friction, ensures the smooth progress of processing process.

Description

Technical Field

[0001] This utility model relates to the field of oil storage cylinder manufacturing technology, and in particular to an oil storage cylinder necking device. Background Technology

[0002] Currently, a pipe shrinking machine is a type of mechanical equipment specifically used for processing the ends of metal pipes. Its core function is to reduce the diameter of one or both ends of the pipe to form a specific conical, flared, or other irregularly shaped port, or to prepare for subsequent processes such as flaring, flanging, bending, welding, and assembly.

[0003] The working principle of a necking machine is essentially cold extrusion molding. Utilizing strong radial pressure and a specially designed mold, it causes controllable plastic deformation at the end of the steel pipe, thereby achieving a reduction in diameter, an increase in wall thickness, and the formation of a specific shape. In the manufacturing process of oil storage cylinders, one end needs to be necked to facilitate subsequent processing. However, using existing necking machines on the market presents two problems. First, the edge of the necked end becomes very sharp, which can not only cut operators but also affect subsequent processing. Second, the oil storage cylinder sometimes gets stuck inside the necking machine after the necking operation, making it very inconvenient to remove.

[0004] For example, Chinese utility model patent application number CN202420475936.9, filed on May 22, 2024, describes a steel pipe processing necking machine, including a mounting box. A mounting frame is fixedly connected to the top of the mounting box, and connecting holes are provided on both sides of the mounting frame. A necking component is installed inside the mounting frame. A movable plate is slidably connected to the top of the mounting box, and a chuck for fixing the steel pipe is installed on the top of the movable plate. A drive mechanism is provided between the mounting box and the necking component to drive the necking component. The drive mechanism drives the movable plate and the chuck to move together. This steel pipe processing necking machine, through the cooperation of the chuck, drive mechanism, and necking component, facilitates the centering and limiting of the steel pipe. The drive motor drives the steel pipe to move towards the necking component, and the necking component rotates to perform necking operations on the steel pipe. The chuck also drives the steel pipe to gradually enter the necking component. However, this prior art does not solve the two problems mentioned above. Therefore, a necking device for an oil reservoir is needed to specifically address these two problems. Utility Model Content

[0005] This utility model aims to solve the problems existing in the prior art by providing an oil storage cylinder narrowing device, which can grind and chamfer the edge of the narrowed end of the oil storage cylinder while narrowing the cylinder, and can apply a thrust to the narrowed end of the oil storage cylinder to prevent the oil storage cylinder from getting stuck in the device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This oil storage cylinder narrowing device includes an installation mold, an oil storage cylinder installation groove opened on the top of the installation mold, an extrusion mold set above the installation mold, a narrowing channel opened through the extrusion mold, a guide member set at the bottom of the narrowing channel and used to guide the oil storage cylinder into the narrowing channel, and a pressing grinding member that presses the oil storage cylinder is slidably connected inside the narrowing channel. The pressing grinding member grinds the narrowed end of the oil storage cylinder by rotating when it is raised and lowered.

[0007] To further improve the design, the installation mold is cylindrical, and a support frame is fixedly installed at the bottom of the installation mold.

[0008] Further improvements include the addition of a chip removal hole at the bottom of the oil storage tank mounting groove.

[0009] Further improvements include setting the extrusion die to be a cylinder, with the diameter of the extrusion die being the same as the diameter of the mounting die.

[0010] Further improvements include a trough at the bottom of the constriction channel, a guide ring sleeve detachably connected to the inside of the trough by magnetic adsorption, and an arc-shaped guide surface located inside the guide ring sleeve for guiding the oil reservoir into the constriction channel.

[0011] Further improvements include a grinding component that is slidably connected inside the constriction channel and passes through the top of the constriction channel, a pressure plate rotatably connected to the top of the grinding column, a spring located between the grinding column and the pressure plate, a spiral groove opened on the outside of the grinding column, and a mating block fixed inside the constriction channel and inserted into the spiral groove. When the grinding column is pushed and slid, the mating block drives the grinding column to rotate by sliding along the spiral groove.

[0012] Further improvements include a grinding layer at the bottom of the grinding column for grinding the constricted end of the oil reservoir.

[0013] Further improvements include the installation of a pair of lifting guide rods fixedly mounted on the mold, with the lifting guide rods passing through the extrusion mold and the extrusion mold slidably connected to the lifting guide rods.

[0014] The beneficial effects of this utility model are: it makes the edge of the oil storage cylinder at the narrowed end smooth and flat, effectively eliminating burrs, flash, or sharp edges that may be generated during the narrowing process, making the product edge smooth and flat, improving product safety, and facilitating subsequent assembly operations. During the narrowing process, it actively applies a pushing force to the processed end of the oil storage cylinder, effectively preventing the oil storage cylinder from getting stuck or jammed in the mold due to material deformation or friction, ensuring smooth processing, reducing equipment downtime for troubleshooting, and improving the continuity and stability of the production line. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Sectional view along line AA in the middle; Figure 3 for Figure 2 A magnified view of part A in the image; Figure 4 for Figure 2 A magnified view of part B in the image.

[0016] Explanation of reference numerals in the attached drawings: 1. Installation mold, 1a. Support frame, 2. Oil reservoir mounting groove, 2a. Chip removal hole, 2a. Extrusion mold, 3. Narrowing channel, 4. Guide component, 5. Sinking groove, 5-1. Guide ring sleeve, 5-2. Arc-shaped guide surface, 5-3. Top pressure grinding component, 6. Grinding column, 6-1. Pressure plate, 6-2. Spring, 6-3. Spiral groove, 6-4. Mating block, 6-5. Grinding layer, 6-6. Lifting guide rod, 7. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] See attached document Figures 1-4 In this embodiment, the oil storage cylinder necking device includes an installation mold 1, which is cylindrical. A support frame 1a is fixedly installed at the bottom of the installation mold 1. An oil storage cylinder mounting groove 2 is opened at the center of the top of the installation mold 1. An extrusion mold 3 is provided above the installation mold 1. The extrusion mold 3 is cylindrical and its diameter is the same as that of the installation mold 1. A necking channel 4 is opened through the center of the extrusion mold 3. The inner diameter of the necking channel 4 is smaller than the outer diameter of the oil storage cylinder. The necking channel 4 is used to neck the end of the oil storage cylinder. A guide for pressing the oil storage cylinder is provided at the bottom of the necking channel 4. The guide 5 of the constriction channel 4 is used to guide one end of the oil storage cylinder into the constriction channel 4 because the outer diameter of the oil storage cylinder is larger than that of the constriction channel 4. The constriction channel 4 is slidably connected to a top-pressing grinding component 6, which is always pressing against the constricted end of the oil storage cylinder. The top-pressing grinding component 6 can grind the constricted end of the oil storage cylinder by rotating during lifting and lowering. A pair of lifting guide rods 7 are fixedly installed on the mounting mold 1. The lifting guide rods 7 pass through the extrusion mold 3 and are slidably connected to the lifting guide rods 7. The lifting guide rods 7 guide the lifting and lowering of the extrusion mold 3.

[0019] See attached document Figures 1-2 The bottom of the mounting mold 1 is fixedly installed with a support frame 1a, which is a pair of arc-shaped plates. A chip discharge hole 2a is opened through the bottom of the oil storage tank mounting groove 2. The chips generated by grinding will be discharged through the chip discharge hole 2a into the space between the pair of arc-shaped plates, which facilitates cleaning.

[0020] See attached document Figures 1-4The guide component 5 includes a groove 5-1, a guide ring 5-2, and an arc-shaped guide surface 5-3. The groove 5-1 is located at the bottom of the constriction channel 4, and the diameter of the groove 5-1 is larger than that of the constriction channel 4. The constriction channel 4 and the groove 5-1 form a stepped hole shape. The guide ring 5-2 is magnetically attached to the inside of the groove 5-1, and the outer diameter of the guide ring 5-2 matches the inner diameter of the groove 5-1. The arc-shaped guide surface 5-3 is located on the inner side wall of the guide ring 5-2. The arc-shaped guide surface 5-3 is used to guide the oil reservoir into the constriction channel 4. When encountering oil reservoirs of different materials, guide rings 5-2 of different specifications can be replaced. Guide rings 5-2 of different specifications have arc-shaped guide surfaces 5-3 with different curvatures, thus better adapting to the constriction operation.

[0021] See attached document Figures 1-4 The top-pressure grinding component 6 includes a grinding column 6-1, a pressure plate 6-2, a spring 6-3, a spiral groove 6-4, a mating block 6-5, and a grinding layer 6-6. The grinding column 6-1 is slidably connected inside the constriction channel 4 and passes through the top of the constriction channel 4. The pressure plate 6-2 is rotatably connected to the top of the grinding column 6-1. The spring 6-3 is disposed between the grinding column 6-1 and the pressure plate 6-2 and surrounds the outside of the grinding column 6-1. When the grinding column 6-1 rotates, the spring... 6-3 can be pulled down by the pressure plate 6-2 to drive the grinding column 6-1 to descend. The spiral groove 6-4 is opened on the outside of the grinding column 6-1. The mating block 6-5 is fixed inside the constriction channel 4 and is inserted into the spiral groove 6-4. The grinding layer 6-6 is fixed at the bottom of the grinding column 6-1. The grinding layer 6-6 grinds the constriction end of the oil reservoir by rotating. When the oil reservoir pushes the grinding column 6-1 to slide, the mating block 6-5 slides along the spiral groove 6-4 to drive the grinding column 6-1 to rotate.

[0022] In use, the oil reservoir is placed inside the oil reservoir mounting groove 2, and then the extrusion die 3 is pushed down by the cylinder. The arc-shaped guide surface 5-3 guides the oil reservoir into the constriction channel 4 for constriction operation. Inside the constriction channel 4, the oil reservoir pushes the grinding column 6-1 up, and the spring 6-3 is stretched. The spring 6-3 drives the grinding column 6-1 to always press against the constricted end of the oil reservoir through the pressure plate 6-2. When the grinding column 6-1 rises, the mating block 6-5 slides along the spiral groove 6-4, thereby driving the grinding column 6-1 to rotate. The rotation of the grinding column 6-1 drives the grinding layer 6-6 to rotate. The rotation of the grinding layer 6-6 grinds the constricted end of the oil reservoir. The debris generated by grinding is discharged through the chip discharge hole 2a. Since the grinding column 6-1 always applies a pushing force to the oil reservoir, it can prevent the oil reservoir from getting stuck inside the constriction channel 4 to a certain extent.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An oil reservoir necking device, comprising an installation mold (1), an oil reservoir mounting groove (2) formed on the top of the installation mold (1), an extrusion mold (3) disposed above the installation mold (1), a necking channel (4) penetrating the extrusion mold (3), and a guide member (5) disposed at the bottom of the necking channel (4) for guiding the oil reservoir into the necking channel (4), characterized in that: The constricted channel (4) is internally connected to a top pressure grinding component (6) of a top pressure oil reservoir. The top pressure grinding component (6) grinds the constricted end of the oil reservoir by rotating during lifting and lowering.

2. The oil storage cylinder narrowing device according to claim 1, characterized in that: The installation mold (1) is cylindrical, and a support frame (1a) is fixedly installed at the bottom of the installation mold (1).

3. The oil storage cylinder narrowing device according to claim 1 or 2, characterized in that: The bottom of the oil storage tank mounting groove (2) is provided with a chip removal hole (2a).

4. The oil storage cylinder narrowing device according to claim 3, characterized in that: The extrusion die (3) is cylindrical, and the diameter of the extrusion die (3) is the same as the diameter of the mounting die (1).

5. The oil storage cylinder narrowing device according to claim 1, characterized in that: The guide (5) includes a groove (5-1) opened at the bottom of the constricted channel (4), a guide ring (5-2) detachably connected to the inside of the groove (5-1) by magnetic adsorption, and an arc-shaped guide surface (5-3) set inside the guide ring (5-2) and used to guide the oil reservoir to be pressed into the constricted channel (4).

6. The oil storage cylinder narrowing device according to claim 1, characterized in that: The top-pressing grinding component (6) includes a grinding column (6-1) slidably connected inside the constricted channel (4) and passing through the top of the constricted channel (4), a pressure plate (6-2) rotatably connected to the top of the grinding column (6-1), a spring (6-3) provided between the grinding column (6-1) and the pressure plate (6-2), a spiral groove (6-4) opened on the outside of the grinding column (6-1), and a mating block (6-5) fixed inside the constricted channel (4) and inserted into the spiral groove (6-4). When the grinding column (6-1) is pushed and slid, the mating block (6-5) drives the grinding column (6-1) to rotate by sliding along the spiral groove (6-4).

7. The oil storage cylinder narrowing device according to claim 6, characterized in that: The bottom of the grinding column (6-1) is provided with a grinding layer (6-6) for grinding the constricted end of the oil reservoir.

8. The oil storage cylinder narrowing device according to claim 1, characterized in that: A pair of lifting guide rods (7) are fixedly installed on the installation mold (1). The lifting guide rods (7) pass through the extrusion mold (3), and the extrusion mold (3) is slidably connected to the lifting guide rods (7).

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