A kind of mouth stretching die of hopper
Technical field
The application relates to field of mechanical die, the mouth stretching die of especially a kind of hopper.
Background technology
Hopper, also referred to as feed hopper, the funnel-shaped container of the feed being mounted in a lot of plant equipment.Fig. 1 illustrates
A kind of common hopper, this hopper includes hopper body 101 and hopper port 102.It can be seen that the shape of hopper port 102
Shape is taper, has four sides, is provided with arc chord angle 103 between adjacent two sides, so that this hopper forms polyhedron
Structure.For this hopper port, prior art is difficult to shape.
Utility model content
The application provides the mouth stretching die of a kind of hopper, solves in prior art, the problem that hopper port is difficult to shape.
The mouth stretching die of a kind of hopper, including upper die component and lower mold assemblies, lower mold assemblies is for fixing work to be processed
Part, also includes Lifting Device and the decompressor being fixed on upper die component, and Lifting Device is used for driving decompressor action;On
The lower section of membrane module is additionally provided with die, is provided with die cavity in die;Decompressor is arranged in die cavity, between decompressor and die
Being provided with activity pellet and punch assemblies, punch assemblies is positioned at the lower section of activity pellet;Punch assemblies includes that four pieces can radially slide
Dynamic movable punch, movable punch and mould intracavity wall are provided with the shape matching with hopper port;Decompressor includes drift and position
Eject mould in drift rear;Lifting Device drives decompressor to eject forward, ejects mould driving activity pellet and die clamping
The hopper body of workpiece, drift drives movable punch radially to slide, and extruding workpiece is close to mould intracavity wall to workpiece.
Preferably, the front end of drift is provided with four inclined plane parts, and inclined plane part is provided with the first inclined-plane;Movable punch is provided with and first
Second inclined-plane of slopes which match, movable punch acts on the promotion of the lateral thrust of generation each other on the first inclined-plane and the second inclined-plane
Under radially slide.
Preferably, ejecting mould and being provided with the 3rd inclined-plane, activity pellet is provided with the 4th inclined-plane with the 3rd slopes which match, activity
Pellet is radially expanded under the promotion of the lateral thrust that the 3rd inclined-plane and the 4th inclined-plane act on generation each other.
Preferably, lower mold assemblies includes lower shoe, and lower shoe is provided with four sliding trays, and the top of each sliding tray is all provided with
Having connecting plate, connecting plate is connected with movable punch;The lower section of lower shoe is provided with retractor device;It is provided with connecting rod, even in sliding tray
One end of extension bar is connected with connecting plate, and other end is stretched out sliding tray and is connected with retractor device;Complete the punching press to workpiece
After shaping, retractor device is used for driving movable punch to reset.
Preferably, upper die component includes upper plate, die block and is arranged between upper plate and die block
First backing plate;Die block is provided with sliding eye;Lifting Device is arranged on above die block, and the lower section ordering material device sets
Having drive rod, drive rod passes through sliding eye and is connected with decompressor.
Preferably, it is additionally provided with the second backing plate between die block and die.
Preferably, the upper surface of die is additionally provided with the limited block preventing activity pellet from skidding off.
The application provides the benefit that, the application, by ejecting the cooperation of mould and activity pellet, secures the hopper of workpiece
Body, further through the cooperation of drift and movable punch, completes the processing to hopper port, and whole process is automatically obtained, and solves existing
The problem that in technology, hopper port is difficult to shape.
Brief description
Fig. 1 is the structural representation of machine-shaping rear hopper;
Fig. 2 is workpiece schematic diagram to be processed;
Fig. 3 is the sectional view of embodiment 1;
Fig. 4 is the phantom of embodiment 2;
Fig. 5 is a kind of view of movable punch in embodiment 2;
Fig. 6 be in embodiment 2 movable punch another in view;
Fig. 7 is the sectional view of lower mold assemblies in embodiment 3;
Fig. 8 is the upward view of lower mold assemblies in embodiment 3.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention to be described in further detail the utility model.
As it is shown in figure 1, the hopper after being machine-shaping.Fig. 2 is workpiece 100 to be processed, and workpiece 100 now has flat
Whole hopper body 101, the utility model processing to be done is processed into the workpiece 100 in Fig. 2 in Fig. 1 exactly has hopper
The hopper of mouth 102.
Embodiment 1:
The mouth stretching die of a kind of hopper, as it is shown on figure 3, it includes upper die component 20 and lower mold assemblies 30, lower mold assemblies 30
For fixing workpiece 100 to be processed.Upper die component 20 includes upper plate the 22nd, die block 21 and is arranged on upper plate 22 and
The first backing plate 23 between die block 21.Being provided with sliding eye 211 on die block 21, sliding eye 211 runs through die
Fixed plate 21.Being fixedly arranged above Lifting Device 41 at die block 21, Lifting Device 41 is connected with drive rod 44, drive rod 44
Reach the lower section of Lifting Device 41, and be connected with the decompressor below die block 21 through sliding eye 211.
The lower section of die block 21 is further fixed on the second backing plate 24, and the lower section of the second backing plate 24 is fixed with die 51, recessed
Being provided with die cavity 52 in mould 51, this die cavity 52 runs through whole die 51.Decompressor is arranged in die cavity 52, at decompressor and recessed
Being additionally provided with activity pellet 53 and punch assemblies between mould 51, punch assemblies is positioned at the lower section of activity pellet 53.The upper end of die 51
Face is additionally provided with the limited block 531 preventing activity pellet 53 from skidding off.
Punch assemblies include four pieces of movable punches that can radially slide 54, movable punch 54 and die cavity 52 inwall be provided with
The shape that hopper port 102 matches, it should be noted that herein be radially for decompressor pressing direction, tool
Body is the direction with lower mold assemblies 30 upper surface flush, and the lower end of die cavity 52 inwall is provided with the shape matching with hopper port 102,
So that with movable punch 54 coordinates.
Decompressor include drift 43 and be positioned at drift 43 rear eject mould 42.Operationally, Lifting Device 41 drives
Drive rod 44 forward extends out, and drive ejects mould 42 and drift 43 ejects forward.Eject mould 42 driving activity pellet 53 and die 51
The hopper body 101 of clamping workpiece 100, thus hopper body 101 is fixed, drift 43 continues forward, and drift 43 drives movable punch
54 radially slide, and movable punch 54 and die cavity 52 inwall are fitted to each other, and die cavity is close to by extruding workpiece 100 to workpiece 100
52 inwalls, thus by hopper port 102 machine-shaping.
Embodiment 2:
As the improvement of embodiment 1, as shown in Figure 4, in the present embodiment, the front end of drift 43 is provided with four inclined plane parts, often
Individual inclined plane part is respectively provided with the first inclined-plane 431.Movable punch 54 is provided with the second inclined-plane 432 matching with the first inclined-plane 431, drift
43 under press when, movable punch 54 is under the promotion of the lateral thrust that the first inclined-plane 431 and the second inclined-plane 432 act on generation each other
Radially slide.In addition, eject mould 42 to be provided with the 3rd inclined-plane 421, activity pellet 53 is provided with the matching with the 3rd inclined-plane 421
Four inclined-planes 422.Ejecting mould 42 when pressing down, activity pellet 53 acts on the horizontal stroke of generation each other on the 3rd inclined-plane 421 and the 4th inclined-plane 422
Radially expand under the promotion of thrust, thus grip hopper body 101 with die 51.
As it is shown in figure 5, four pieces of movable punches 54 are in initial position, workpiece 100 is i.e. set in outside four pieces of movable punches 54
Side.During drift 43 is pressed down, movable punch 54 gradually slides in and out.Fig. 6 shows four pieces of movable punches after Workpiece shaping
54 locations, now, have completed the processing of the hopper port 102 to workpiece 100.
Embodiment 3:
As the improvement of above-described embodiment, as shown in Figure 7 and Figure 8, lower mold assemblies 30 includes lower shoe 31, on lower shoe 31
Being provided with four sliding trays 311, the top of each sliding tray 311 is equipped with connecting plate 32, and connecting plate 32 is fixed with movable punch 54
Connect.Be provided with the 3rd backing plate 35 and retractor device 33 in the lower section of lower shoe 31, retractor device 33 can radially stretch.Sliding tray
Being provided with connecting rod 34 in 311, one end of connecting rod 34 is connected with connecting plate 32, and other end stretches out sliding tray 311 and flexible dress
Put 33 to be connected.After completing the punch forming to workpiece 100, retractor device 33 forward extends out, at the beginning of driving movable punch 54 to return to
Beginning position, completes to reset.
Above content is to combine specific embodiment further detailed description of the utility model, it is impossible to assert
Of the present utility model being embodied as is confined to these explanations.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, some simple deduction or replace can also be made.