CN109047547B

CN109047547B - Material part rapid demoulding structure of anchor chain crosspiece punch press

Info

Publication number: CN109047547B
Application number: CN201810794082.XA
Authority: CN
Inventors: 宋修君; 周家波; 周家淳; 兰孝柱; 黄品
Original assignee: Qingdao Tianshunda Machinery Manufacturing Co Ltd
Current assignee: Qingdao Tianshunda Machinery Manufacturing Co Ltd
Priority date: 2018-07-19
Filing date: 2018-07-19
Publication date: 2019-12-27
Anticipated expiration: 2038-07-19
Also published as: CN109047547A

Abstract

The invention relates to the field of anchor chains, in particular to a material part quick demoulding structure of an anchor chain crosspiece punching machine. The punching hammer forms a transverse long hole area inside and is connected with a die head, a material pushing rod and a pair of demoulding arms are arranged in the die head, the demoulding arms are L-shaped support arm rods, the tail end of the vertical end is pivoted with a movable wheel-shaped guide wheel, and the horizontal end is a striking end; the directional block is locked on the punch body and is adjacent to two sides of the impact hammer, the impact hammer is adjacent to the inner side of the directional block, a lower corner with a slight upper arc shape is formed at the normal state position where the impact hammer is not lifted, the extension inclination of the lower corner is gradually close to the inclined wall of the impact hammer, and the upper part of the inclined wall is a vertical wall-shaped driving wall.

Description

Material part rapid demoulding structure of anchor chain crosspiece punch press

Technical Field

The invention relates to the field of anchor chains, in particular to a material part quick demoulding structure of an anchor chain crosspiece punching machine.

Background

As shown in fig. 3, a punch press is often used as a machine for forming the chain rail. The punch press forms up and down actions by the principle that a connecting rod is matched with a sliding block, so that an upper die presses and forms a plate sheet positioned on a lower die by virtue of impact force, redundant waste materials are removed, or a specific workpiece form is formed. The punch press needs to cooperate with a material pushing rod to separate the material from the die head, and as shown in the third drawing, the punch press is generally used in a manner that a lower die is arranged in a workbench, a punch hammer 40 transversely penetrates through a long hole area 41 near the lower part to arrange a limiting rod 61 in the long hole area 41, the punch hammer 40 is buckled with a die head 42 at the lower part by a spring ring, the bottom surface of the die head 42 is locked with an upper die 43, the material pushing rod 60 is an inverted T-shaped rod, one end of the material pushing rod 60 extends to the center of the die head 42, a sunken groove 421 is sunken at the top of the die head 42, the top end of the material pushing rod 60 extends into the sunken groove 421 to be screwed into a nut, and the material pushing rod 60 is prevented from falling out of the die head 42, of course, the process of assembling the material pushing rod 60 in the die head 42 is completed. In addition, a stop block 62 is locked at the position adjacent to the punch 40 on both sides of the punch, the stop block 62 can be adjusted to the upper and lower positions, and the stop block 62 keeps a certain distance with the limiting rod 61 when the punch is not actuated.

Therefore, the ram 40 is transmitted by the power to bring the die head 42, the upper die 43 and the limiting rod 61 to descend, so that the upper die 43 presses the material 50 for forming, at the moment after forming, the material pushing rod 60 in the upper die 43 absorbs the material 50 to move upwards along with the return stroke of the ram 40 due to the impact force at that time, in order to demould the material 50, the limiting rod 61 and the limiting rod 61 are lifted up in the return stroke of the ram 40 until the limiting rod 61 touches the fixed stop 62, the ram 40 continues to lift up until the top dead center position of the ram 40, the ram 40 reciprocates to the descending stroke, and touches the limiting rod 61 in the descending stroke, so that the limiting rod 61 hits the material pushing rod 60 to move a little displacement, and the material 50 is separated from the upper die 43 by the force path opposite to sticking, so as to achieve the step of demoulding the material 50.

This demolding design has a significant adverse effect on operating efficiency. Since the stripping operation of the plunger 60 is performed when the ram 40 reaches the top dead center, and the stripper 60 cannot be separated from the material 50 at the time when the limit lever 61 has hit the stopper 62, the time for the return stroke (the lift-up process) of the ram 40 is consumed when the limit lever 61 waits for the downward stroke of the ram 40, and this stripping operation is performed after the ram 40 returns to the top dead center, which causes wasted operation time, reduces the automation speed, and accumulates, and the wasted return stroke time significantly reduces the quantization efficiency.

It should be noted that, when the processing speed is fast, since the material removing is performed after the ram 40 reaches the top dead center, when the material pushing rod 60 removes the material, and the ram 40 and the die head 42 are rapidly lowered to perform the stroke, the material 50 is lowered at a speed slower than the lowering speed of the die head 42 and is often caught by the die head 42, and the material removing operation of the material 50 cannot be satisfactorily achieved, so that the processing speed cannot follow the fast step of automatic quantification.

Disclosure of Invention

In order to solve the technical problem, the invention provides a material part quick demoulding structure of an anchor chain crosspiece punching machine.

The technical scheme adopted by the invention for realizing the purpose is as follows:

a material part fast demoulding structure of an anchor chain crosspiece punch press is characterized in that a punching hammer forms a transverse long hole area inside, the punching hammer is connected with a die head, a material pushing rod and a pair of demoulding arms are arranged in the die head, the demoulding arms are nearly L-shaped support arm rods, a movable wheel-shaped guide wheel is pivoted at the tail end of a vertical end, and a striking end is arranged at a horizontal end; the punching machine further comprises an orientation block, the orientation block is a block and is locked on the punching machine body and is adjacent to two sides of the punch hammer, an upper arc-shaped lower corner is formed at a normal state position where the punch hammer is not lifted, the extension slope of the lower corner is close to an inclined wall of the punch hammer, the upper part of the inclined wall is a vertical wall-shaped driving wall, the collision end of the stripping arm extends into the long hole area at two sides of the punch hammer and is pivoted in the wall surface of the long hole area, the fulcrum position of the orientation block is close to the outer side, and the guide wheel side slides to the lower corner position of the orientation block, so that the orientation block provides a guide effect for the movement of the stripping arm. The material part is punched by descending the impact hammer, the die head, the demoulding arm and the material pushing rod are lifted together, the guide wheel moves along the inclined wall, the demoulding arm takes the impact end pivoted on the impact hammer as a pivot along with the gradually increased inclination, and the material part is separated from the material pushing rod by pressing the impact end downwards.

As a further improvement, the end of the vertical end of the demoulding arm is concavely provided with a groove body for pivotally installing a guide wheel between the groove body and the demoulding arm, and the guide wheel can be a bearing.

As a further improvement, the orientation block can be provided with a slot hole in the center, and the orientation block is fixed on the punch body by the screw lock of the nut and the bolt matched with the slot hole.

As a further improvement, the orientation block is arranged between the actuating wall and the inclined wall and forms an upper corner of the arc-shaped lead angle.

The demoulding design of the invention does not cause the structure of the punch press to change greatly, is easy to install, has low cost and simple elements, and can provide the excellent effect of being easily matched with automatic operation by a practical and progressive structure.

Drawings

Fig. 1 is a schematic plan view of the present invention.

FIG. 2 is another schematic diagram of the operation of the present invention.

Fig. 3 is a schematic structural diagram of the prior art.

Detailed Description

The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.

As shown in figures 1 and 2, the quick stripping structure for the material part of the anchor chain crosspiece punch press has the advantages that the punch press is not changed greatly, so that the positions of the die head 42, the upper die 43 and the punch hammer 40 are not changed, and the main change enables the stripping efficiency of the material part 50 to be more effective and quicker.

It comprises a pair of stripping arms 10 pivoted on the long hole area 41 of the die head 42 and orientation blocks 20 fixed on both sides of the punch body. The demoulding arm 10 is a nearly L-shaped support arm rod, the vertical end of the nearly L-shaped support arm rod is slightly inclined towards the outer side, the tail end of the vertical end is concavely provided with a groove body for pivotally installing a guide wheel 12 between the vertical end and the groove body, the guide wheel 12 can adopt a wheel or a bearing, and the horizontal end is a striking end 11; the center of the orientation block 20 is provided with a hollow long hole 25, the orientation block is fixed on the punch body by the screw lock of the long hole 25 matching with a nut and a bolt, and is adjacent to two sides of the impact hammer 40, the inner side of the orientation block 20 is adjacent to the impact hammer 40, a lower corner 21 with a slight upper arc shape is formed at the normal state position where the impact hammer 40 is not lifted, the lower corner 21 extends, the inclination is close to the inclined wall 22 of the impact hammer 40, the upper part of the inclined wall 22 is a vertical wall-shaped guide wall 24, an upper corner 23 with an arc-shaped guide angle is formed between the guide wall 24 and the inclined wall 22, so that the moving of the demoulding arm 10 is smooth, and the stroke of the guide wall 24 is equivalent to the action time of the demoulding arm 10 for stripping the material of the material pushing rod 60; therefore, the impact end 11 of the stripping arm 10 extends from the slotted hole area 41 on both sides of the punch 40 and is pivoted in the wall surface of the slotted hole area 41, the fulcrum is positioned near the outer orientation block 20, and the guide wheel 12 is laterally abutted against the lower corner 21 of the orientation block 20, so that the orientation block 20 provides a guide function for the movement of the stripping arm 10.

After the ram 40 descends to punch out the material 50, in order to perform the upward return stroke, the die head 42, the upper die 43, the stripping arm 10, and the material pushing rod 60 are lifted up together, the guide wheel 12 is displaced along the inclined wall 22, the stripping arm 10 is pivoted to the ram 40 as a pivot as the inclination gradually increases, the striking end 11 gradually presses down the material pushing rod 60, the guide wheel 12 smoothly enters the driving wall 24 in cooperation with the leading angle of the upper corner 23, the stripping arm 10 is forced to form a seesaw action with the pivot, the striking end 11 is struck, the guide wheel 12 of the stripping arm 10 is tilted up as being closer to the ram 40, the striking end 11 is displaced down to strike the material pushing rod 60, the material pushing rod 60 moves down by a distance, the material 50 is separated from the material pushing rod 60 and the die head 42, the purpose of stripping is achieved, and the ram 40 continues to perform the upward return stroke to the upper dead point.

The orientation block 20 can be loosened to adjust the position of the bolt in the position of the long hole 25 up and down according to the long hole 25, and then locked, thereby adapting to different processing strokes of different material pieces 50.

The material 50 is quickly demoulded, and the demoulding process is finished when the punch 40 returns and is not close to the top dead center, namely, the demoulding stroke of the demoulding arm 10 and the return stroke of the punch 40 are separately and independently designed, so that the material can be demoulded by effectively using time without waiting for the punch 40 to return to the top dead center.

Through the cooperation of the stripping arm 10 and the orientation block 20, the connecting rod position of the stripping arm 10 is changed by the slope guidance of the guide wheel 12 and the inclined wall 22 of the stripping arm 10, and the slope slide position design of the part is not involved with the upper dead point of the lift of the ram 40, so that the stripping arm 10 meets the inclined wall 22 to change the position, the stripping arm 10 pivots at the fulcrum thereof, the impacting end 11 tilts up and impacts the material pushing rod 60, and the stripping efficiency of the material 50 is smoothly and rapidly achieved.

Claims

1. The utility model provides a material piece quick demoulding structure of anchor chain crosspiece punch press, the punching hammer forms the long hole region of horizontal long shape in inside, and the punching hammer connects the die head, settles a ejector pin in the die head, its characterized in that: comprises a pair of demoulding arms and an orientation block; the demoulding arm is a supporting arm rod which is nearly L-shaped, the tail end of the vertical end is pivoted with a movable wheel-shaped guide wheel, and the horizontal end is a striking end; the punching machine also comprises an orientation block, a punch press body and a driving mechanism, wherein the orientation block is locked on the punching machine body and is adjacent to two sides of the punch hammer, the adjacent punch hammer on the inner side of the orientation block forms a lower corner with a slight upper arc shape at the normal state position where the punch hammer is not lifted, the extension inclination of the lower corner is close to the inclined wall of the punch hammer, and the upper part of the inclined wall is a vertical wall-shaped driving wall; the impact end of the demoulding arm extends into the long hole area on two sides of the impact hammer and is pivoted in the wall surface of the long hole area, the fulcrum position is close to the directional block on the outer side, and the guide wheel side slides to be close to the lower corner position of the directional block, so that the directional block provides the guide function for the movement of the demoulding arm.

2. The rapid stripping structure for material parts of an anchor chain crosspiece punch press as claimed in claim 1, wherein: the end of the demoulding arm at the vertical end is concavely provided with a groove body for pivotally installing a guide wheel between the groove body and the guide wheel, and the guide wheel can be a bearing.

3. The rapid stripping structure for material parts of an anchor chain crosspiece punch press as claimed in claim 1, wherein: the directional block can be provided with a hollow slot hole in the center, and the directional block is fixed on the punch body by the screw lock of the nut and the bolt matched with the slot hole.

4. The rapid stripping structure for material parts of an anchor chain crosspiece punch press as claimed in claim 1, wherein: the orientation block forms an upper corner of the arc-shaped lead angle between the actuating wall and the inclined wall.