TWM602475U - Multiple ejector pin structure with single power source - Google Patents

Abstract

This model is a multiple ejector pin structure with a single power source, which mainly includes a base, a power element, a drive element, a support frame and a plurality of ejector pins. The drive element is driven by the power element to move, and the drive element drives the When a support frame is displaced, since multiple ejector pins are installed on the support frame, when the support frame is displaced, it can drive all the ejector pins to move at the same time, so that all the ejector pins can be at the same time Perform stamping processing.

Description

Multiple ejector pin structure with single power source

The new type relates to the technical field of punching machines, in particular to a structure of multiple ejector pins with a single power source.

Generally, the stamping machine or punching machine in the factory is used to stamp the material to cut, bend or shape the material into the finished shape and size specified by the mold. The stamping process can be roughly divided into shearing, bending, direct forming and drawing Several different processing forms.

The punching machine or punching machine usually has an ejector pin, which is connected to the sliding block, and the sliding block pushes against the mold, so that the mold can punch the material.

It is worth mentioning that if a general stamping machine or punching machine has multiple ejector pins, each ejector pin will be equipped with a power source, and the ejector pin is operated by multiple power sources to move repeatedly, so that the slider can adjust the material. Perform stamping processing.

However, there is often a time difference between the actions of multiple power sources, and because of the time difference of the power source, the punching time between the ejector pins is inconsistent. The operator often has to repeatedly correct the time difference of the power source to try to The actuation time difference between power sources is corrected to be close to the same, but the effect of correcting the actuation time difference is still limited.

The purpose of the present invention is to solve the problem that when a plurality of power sources actuate different ejector pins, the difference in the actuation time between the power sources causes the stamping time difference between the ejector pins.

To achieve the foregoing objective, the present invention is a multiple ejector pin structure with a single power source, comprising: a base; a power element, having a screw and a power source, the screw is pivoted on the base, and the power source is power Connect the screw; a driving element, respectively having a first rod pivotally connected to the base, a slider that is screwed to the screw and driven to connect the first rod, and a second rod pivotally connected to the slider ; A support frame, pivotally connected with each of the second rod; a plurality of ejector pins, respectively, connected to the second rod pivotally and for connecting the lower mold.

In a preferred embodiment, one end of the first rod is pivotally connected to the bottom rod, and the other end of the first rod is divided into two sides, and two fixed posts are protruding from each side. A locking groove is formed between the two sides of the sliding block, and a pivot post is respectively protruded on both sides of the slider, and the two pivot posts are respectively locked in the locking groove and pivotally connected to the second rod.

In a preferred embodiment, the base has a bottom rod and two side rods connected to both ends of the bottom rod, one end of the two side rods is connected to the bottom rod and extends in the same direction, so that the base is U-shaped.

In a preferred embodiment, the two side rods respectively have a guide rail protruding toward the driving element, the guide rail is arranged along the extending direction of the side rod, and the two ends of the support frame are respectively arranged at The guide rail.

In a preferred embodiment, each of the two side bars has a perforation, and the two perforations are located at corresponding positions.

In a preferred embodiment, the first rod is pivoted to the bottom rod, and the first rod, the slider, and the second rod are all located between the two side rods.

In a preferred embodiment, the support frame is located between the two side rods.

In a preferred embodiment, the screw passes through the perforations of the two side rods, and the aperture of the two perforations is slightly larger than the diameter of the screw.

In a preferred embodiment, the sliding block is provided with a screw hole through which it is screwed with the screw.

The ejector pins are respectively connected through the support frames, and the lower mold is connected through the ejector pins, because the support frames are connected together through the ejector pins, and the support frame is driven by the driving element, so that Each ejector pin can be displaced and processed at the same time.

10: Base

11: bottom bar

12: Sidebar

121: Piercing

122: guide rail

20: Power components

21: Screw

22: power source

30: drive element

31: first shot

311: fixed column

312: card slot

32: second shot

33: Slider

331: Pivot

332: screw hole

40: support frame

50: ejector pin

60: Lower die

Q1: sinking state

Q2: Stamping state

Figure 1 is an exploded view of the model in a preferred embodiment; Figure 2 is a perspective view of the model in a preferred embodiment; Figure 3 is a side view of the model in a preferred embodiment in a sinking state Figure 4 is a side view of the new model in a preferred embodiment in a stamped state; Figure 5 is a perspective view of the new model in another embodiment.

Please refer to Figures 1 to 3, the present invention is a multiple support frame structure with a single power source, which mainly has a base 10, a power element 20, a driving element 30, a support frame 40 and a plurality of ejector pins 50. :

The base 10 has a bottom rod 11 and two side rods 12 connected to both ends of the bottom rod 11, one end of the two side rods 12 is connected to the bottom rod 11 and extends in the same direction, so that the base 10 is generally U-shaped; In this embodiment, the two side bars 12 respectively have a perforation 121, and the two perforations 121 are located at corresponding positions.

The power element 20 has a screw 21 and a power source 22. The screw 21 is pivotally mounted on the base 10, and the power source 22 is power connected to the screw 21; in this embodiment, the power source 22 is a motor. Most mechanical presses use induction motors. Early mechanical presses were driven by a VS motor, and the torque was adjusted by adjusting the current of the coupling machine. Some inverters were used to drive an induction motor. A flywheel is used as an energy storage element in a punching machine using an induction motor. The flywheel will continue to run regardless of whether it is processed or not. When processing is required, the flywheel will be used to drive the slider to run. There is also a servo punch with a servo motor as the power source. The servo punch does not need flywheel energy storage, and the drive will only run during processing. Moreover, the speed curve of the slider at different positions can be determined according to the processing characteristics, allowing for more difficult processing.

The driving element 30 has a first rod 31 pivotally connected to the base 10, a slider 33 that is screwed to the screw 21 and drives the first rod 31, and a second rod 33 pivotally connected to the slider 33. Rod 32; In this embodiment, the number of the driving element 30 is plural, and each of the first rod 31 is pivoted to the bottom rod 11, each of the first rod 31, the slider 33 and the second rod 32 Located between the two side bars 12.

The support frame 40 is pivotally connected to each of the second rods 32; in this embodiment, the support frame 40 is located between the two side rods 12, so that the support frame 40 can only be moved by the second rod 32 to move.

The ejector pins 50 are respectively connected to the support frame 40 and are used to connect the lower die 60; in this embodiment, the lower die 60 is a large piece of metal, and the lower die 60 is usually fixed on the top of the punching machine. At this time, the lower die 60 moves up and down and presses the die pad on the punching machine, and the die pad is generally stationary. Large punch presses (like those used in the automotive industry) will add a mold cushion to the die cushion. If a single stroke is used for deep drawing, a die cushion will be required. The slider is also a large piece of metal, which is connected to the upper mold of the mold and moves up and down during the punching process. When the upper and lower molds of the mold are close together, the workpiece in it will deform.

In this embodiment, the screw 21 passes through the through holes 121 of the two side rods 12, and the aperture of the two through holes 121 is slightly larger than the diameter of the screw 21, so that the screw 21 can rotate freely in the through holes 121.

Secondly, the two side rods 12 respectively have a guide rail 122 protruding toward the driving element 30, the guide rail 122 is arranged along the extending direction of the side rod 12, and the two ends of the support frame 40 are respectively arranged at On the guide rail 122, the support frame 40 can only be repeatedly displaced along the extending direction of the side rod 12.

Furthermore, one end of the first rod 31 is pivotally connected to the bottom rod 11, and the other end of the first rod 31 is divided into two sides, each side protruding with two fixed posts 311, one of the two fixed posts 311 A locking groove 312 is formed therebetween, a pivot post 331 is protruded on both sides of the slider 33, and two pivot posts 331 are respectively locked in the locking groove 312 and pivotally connected to the second rod 32, Thereby, when the screw 21 rotates and the slider 33 is displaced, the pivot 331 can drive the first rod 31 and the second rod 32 to move.

Finally, the sliding block 33 is provided with a screw hole 332 through which the screw hole 332 is screwed to the screw 21, so that the sliding block 33 can repeatedly move along the extending direction of the screw 21, and the sliding block 33 can The second rod 32 is driven to push against the support frame 40.

The above is the structural configuration and connection relationship of the new model in a preferred embodiment. The use of the present model is as follows:

3 and 4, the driving element 30 is driven by the power element 20, so that the driving element 30 has a sinking state Q1 and a stamping state Q2; please refer to FIG. 3, in the sinking state Q1, the The first rod 31 and the second rod 32 are driven by the sliding block 33, so that the first rod 31, the second rod 32 and the screw 21 have an angle between them, and the second rod 32 pulls the The support frame 40 causes the support frame 40 to be pulled and displaced toward the bottom rod 11.

4, when the power source 22 is driven to rotate the screw 21, the slider 33 is driven to slide toward the power source 22, and the first rod 31 and the second rod 32 are pulled through the slider 33 Pivoting, the angle between the first rod 31 and the second rod 32 and the screw 21 is increased, and the second rod 32 then pulls the support frame 40 away from the bottom rod 11, thereby supporting each The support frame 40 is switched to the pressing state Q2.

Referring to FIG. 5, in the second embodiment, each of the supporting frames 40 is connected to each of the ejector pins 50, and the lower mold 60 is connected through each of the ejector pins 50, because the ejector pins 50 share the same The support frame 40 is connected, and the support frame 40 is driven by the driving element 30, so that each ejector pin 50 can be displaced and processed at the same time.

10: Base

11: bottom bar

12: Sidebar

121: Piercing

122: guide rail

20: Power components

21: Screw

22: power source

30: drive element

31: first shot

311: fixed column

312: card slot

32: second shot

33: Slider

331: Pivot

332: screw hole

40: support frame

50: ejector pin

60: Lower die

Claims (9)

A multiple ejector pin structure with a single power source, comprising: a base; a power element with a screw and a power source, the screw is pivoted on the base, and the power source is power connected to the screw; a driving element, It has a first rod pivotally connected to the base, a slider that is screwed to the screw rod and drives the first rod, and a second rod pivotally connected to the slider; a support frame, and the second rod The rod is pivotally connected; a plurality of ejector pins are respectively connected to the support frame and provided for connecting the lower mold. The multiple ejector pin structure with a single power source according to claim 1, wherein one end of the first rod is pivotally connected to the bottom rod, and the other end of the first rod is divided into two sides, and each side is convex Two fixed posts are provided, a locking groove is formed between the two fixed posts, a pivot post is protruding from both sides of the slider, and the two pivot posts are respectively clamped in the locking groove and pivoted to the On the second shot. The multiple ejector pin structure with a single power source according to claim 1, wherein the base has a bottom rod and two side rods connecting both ends of the bottom rod, one end of the two side rods is connected to the bottom rod and faces Extend in the same direction so that the base is U-shaped. The multiple ejector pin structure of a single power source according to claim 3, wherein the two side rods respectively have a guide rail protruding toward the driving element, and the guide rail is arranged along the extending direction of the side rod , And the two ends of the support frame are respectively arranged on the guide rail. The multiple ejector pin structure with a single power source according to claim 3, wherein each of the two side bars has a perforation, and the two perforations are located at corresponding positions. The multiple ejector pin structure with a single power source according to claim 5, wherein the screw passes through the perforations of the two side rods, and the aperture of the two perforations is slightly larger than the diameter of the screw. The multiple ejector pin structure with a single power source according to claim 3, wherein the first rod is pivoted to the bottom rod, and the first rod, the slider and the second rod are all located between the two side rods between. The multiple ejector pin structure with a single power source according to claim 3, wherein the support frame is located between the two side rods. The multiple ejector pin structure with a single power source according to claim 1, wherein the sliding block is penetrated with a screw hole and is screwed with the screw through the screw hole.

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