CN219292514U

CN219292514U - Hydraulic stripping device for punching machine

Info

Publication number: CN219292514U
Application number: CN202320126213.3U
Authority: CN
Inventors: 野村正树
Original assignee: Nanwu Cylinder Changzhou Co ltd
Current assignee: Nanwu Cylinder Changzhou Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-07-04
Anticipated expiration: 2033-01-12

Abstract

The utility model relates to a die stripping device, which aims to solve the problems that a special lifting sling has high use cost and long maintenance period when a die is replaced by an existing punching machine, and a special lifting sling needs professional operation and has low efficiency and potential safety hazard.

Description

Hydraulic stripping device for punching machine

Technical Field

The utility model relates to a die stripping device, in particular to a hydraulic die stripping device for a punching machine.

Background

Due to the upper structure of the punching machine, the die cannot be replaced by a simple lifting sling when the die is replaced, so that a great amount of time is consumed for replacing the die; meanwhile, the existing lifting sling has two problems:

a lifting sling matched with punching machine is specially designed for a certain model or series of punching machine, and has the advantages of high cost, no general purpose, difficult to purchase and long maintenance period.

The other type of the conventional lifting sling is a simple support frame such as a tripod installed on site, the lifting sling is installed on the support frame, the stamping machine is subjected to rough lifting, collision is unavoidable in the lifting process, then lifting personnel miss the weight of a die if experience is insufficient, dangerous accidents of the die bending support frame can occur, the lifting sling has the advantages of convenience in purchasing and convenience in price, one or more experienced operators are needed to be present in each lifting, one experienced master unit is not provided, and when the product is replaced, the master unit needs to be responsible for a plurality of stamping machines, or potential safety hazards exist.

In summary, the existing punching machine has the problems that the special lifting sling has high use cost and long maintenance period when the die is replaced, and the common lifting sling needs professional operation, has low efficiency and has potential safety hazard.

Disclosure of Invention

The utility model aims to solve the technical problems that: in order to solve the problems that the existing punching machine has high use cost and long maintenance period of a special lifting sling when a die is replaced, and a common lifting sling needs professional operation, has low efficiency and has potential safety hazard, the hydraulic lifting device for the punching machine is provided.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a hydraulic pressure drawing device for punching machine, including the main part that the multistage connects gradually, every section main part all includes hoisting block, cylinder and pneumatic cylinder, the hoisting block is the cuboid metal piece of whole strip, have a plurality of evenly distributed's oval-shaped mounting groove on the hoisting block, the intermediate position of mounting groove sets up the cylinder, the cylinder is cylindrical, the upper and lower both ends face of cylinder is respectively towards the long avris of hoisting block both sides, the inside pneumatic cylinder and the connecting rod of setting up of hoisting block of cylinder below, the cylinder passes through the support and is connected with the connecting rod, the connecting rod is connected with the expansion end of pneumatic cylinder to realize the lift of cylinder by the pneumatic cylinder drive.

Further, the hydraulic cylinders are single-acting hydraulic cylinders, a plurality of hydraulic cylinders are arranged in each section of lifting block, and the hydraulic cylinders synchronously lift; each hydraulic cylinder drives 2-3 rollers to lift simultaneously through a connecting rod.

Further, the upper surface of the lifting block is a smooth surface, and the upper surface of the lifting block is a stamping die contact surface which is in contact with the stamping die.

Further, the both sides of lifting block are long limit side, and the both ends of lifting block are the minor face side, and the minor face side sets up the hydraulic fluid port respectively, and the hydraulic fluid port passes through the pipeline and is connected with the pneumatic cylinder.

Further, the fixed end of the hydraulic cylinder is fixedly connected or detachably connected with the inside of the lifting block below the roller.

The hydraulic stripping device for the punching machine has the beneficial effects that the hydraulic stripping device for the punching machine uniformly opens a plurality of embedded grooves on the platform at the bottom of the punching machine, then the hydraulic stripping device for the punching machine is arranged in the embedded grooves, when the die is replaced, the hydraulic cylinder acts to jack the die, as the hydraulic cylinder is the die jacked by the roller, the die can move back and forth on the roller, so that the die is convenient for personnel to replace, the lifting problem is solved, and the whole replacement process can be completed only by 2-3 persons within half an hour; in conclusion, the utility model has the characteristics of simple structure, convenient installation, low use cost, simple operation, high efficiency and no potential safety hazard.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a bottom view of a section of the body of fig. 1.

Fig. 3 is a cross-sectional view of a section of the body of fig. 1.

In the figure: 1. lifting block 2, roller 3, hydraulic cylinder 4, mounting groove 5, oil port 6 and connecting rod.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and a preferred embodiment. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

The utility model provides a hydraulic stripping device for punching machine, a plurality of evenly distributed's embedded groove is seted up on the platform (base) of current punching machine bottom, the embedded groove is embedded to install the hydraulic stripping device for punching machine of this application, every punching machine is with the main part that all connects gradually including the multistage, every section main part all includes lifting block 1, cylinder 2 and pneumatic cylinder 3, lifting block 1 is the cuboid metal block of whole, lifting block 1's upper surface is smooth surface, lifting block 1's upper surface is the stamping die contact surface with stamping die, have a plurality of evenly distributed's oval mounting groove 4 on the lifting block, the intermediate position of mounting groove 4 sets up cylinder 2, cylinder 2 is cylindrically, the upper and lower both ends face of cylinder 2 is towards the long limit side of lifting block 1 both sides respectively, lifting block 1 inside of cylinder 2 below sets up pneumatic cylinder 3 and connecting rod 6, the stiff end of pneumatic cylinder 3 and lifting block 1 inside fixed connection or detachable connection of cylinder 2 below, in the drawing can dismantle through the bolt and install, lifting block 2 passes through the support and connecting rod 6, and the lift cylinder 3 is connected by the pneumatic cylinder 3.

The hydraulic cylinders 3 are single-acting hydraulic cylinders, and in order to ensure that enough power is provided for lifting, a plurality of hydraulic cylinders 3 are arranged in each lifting block, and the hydraulic cylinders 3 synchronously lift; each hydraulic cylinder drives 2 to 3 rollers 2 to lift simultaneously through a connecting rod, and 3 rollers 2 are shown in the figure.

The both sides of lifting block 1 are long limit side, and lifting block 1's both ends are the minor face side, and the minor face side sets up hydraulic fluid port 5 respectively, and the one end of hydraulic fluid port 5 is connected with pneumatic cylinder 3 through the pipeline, and the other end of hydraulic fluid port 5 is connected with pressure device through the pipeline.

When changing the mould

Cutting off the power supply of the punching machine; starting the pressurizing device; the hydraulic cylinder 3 acts to push the connecting rod 6 forwards, the connecting rod 6 pushes the roller 2 to lift up, and the roller 2 jacks up the die; a worker starts a forklift or manually pushes a lifting moving tool such as a hydraulic forklift to one side of the punching machine, taking the forklift as an example, stopping the forklift at one side of the punching machine, lifting fork teeth, pre-forking a shovel plate on the fork teeth, stopping the shovel plate when the shovel plate is lifted to be flush with or slightly lower than the base of the punching machine, pushing a die to move towards the shovel plate from the other side of the punching machine until the die completely falls on the shovel plate, and starting the forklift;

the forklift brings a new die, the forklift stops at one side of the punching machine, the fork teeth are lifted to be flush with the roller 2 or slightly higher than the roller 2, a worker pushes the new die into the punching machine, or pulls the new die into the punching machine from the other side of the punching machine, the new die is pushed back and forth to adjust the position of the new die, finally the pressurizing device is started, the hydraulic cylinder 3 acts, the connecting rod 6 is pulled backwards, the connecting rod 6 pulls the roller 2 to descend, the roller 2 drops the new die, and the new die is fixed; so far, the die replacement is completed, and the whole process does not need to be hoisted.

The foregoing description is merely illustrative of specific embodiments of the utility model, and the utility model is not limited to the details shown, since modifications and variations of the foregoing embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a hydraulic pressure draft gear for punching machine which characterized in that: including the main part that the multistage connects gradually, every section main part all includes hoisting block, cylinder and pneumatic cylinder, and the hoisting block is the cuboid metal block of whole strip, has a plurality of evenly distributed's oval mounting groove on the hoisting block, and the intermediate position of mounting groove sets up the cylinder, and the cylinder is cylindrical, and the upper and lower both ends face of cylinder is the long limit side towards the hoisting block both sides respectively, and the inside pneumatic cylinder and the connecting rod of setting up of hoisting block of cylinder below, and the cylinder passes through the support to be connected with the connecting rod, and the connecting rod is connected with the expansion end of pneumatic cylinder to realize the lift of cylinder by the pneumatic cylinder drive.

2. The hydraulic stripping apparatus for a press as claimed in claim 1, wherein: the hydraulic cylinders are single-acting hydraulic cylinders, a plurality of hydraulic cylinders are arranged in each section of lifting block, and the hydraulic cylinders synchronously lift; each hydraulic cylinder drives 2-3 rollers to lift simultaneously through a connecting rod.

3. The hydraulic stripping apparatus for a press as claimed in claim 1, wherein: the upper surface of the lifting block is a smooth surface, and the upper surface of the lifting block is a stamping die contact surface which is in contact with the stamping die.

4. The hydraulic stripping apparatus for a press as claimed in claim 1, wherein: the both sides of lifting block are long limit side, and the both ends of lifting block are the minor face side, and the minor face side sets up the hydraulic fluid port respectively, and the hydraulic fluid port passes through the pipeline and is connected with the pneumatic cylinder.

5. The hydraulic stripping apparatus for a press as claimed in claim 1, wherein: the fixed end of the hydraulic cylinder is fixedly connected or detachably connected with the inside of the lifting block below the roller.