CN203665597U

CN203665597U - Punching and locating mechanism for end of trim strip

Info

Publication number: CN203665597U
Application number: CN201320709331.3U
Authority: CN
Inventors: 张忠于
Original assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Current assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Priority date: 2013-11-08
Filing date: 2013-11-08
Publication date: 2014-06-25
Anticipated expiration: 2023-11-08

Abstract

The utility model relates to a punching and locating mechanism for the end of a trim strip. The punching and locating mechanism for the end of the trim strip comprises an embedded block, wherein the edge of the embedded block is inserted in an inner cavity of a product and the embedded block is placed on a lower die. An inclined hole inclining towards the side of the product gradually from bottom to top is formed in the embedded block. A wedge matched with the inclined hole is placed in the inclined hole. The bottom of the wedge abuts against the upper end of a first spring. An ejector rod mechanism capable of pressing the wedge before the punching operation is arranged above the wedge. Meanwhile, a second spring capable of resetting the embedded block is arranged between the lower die and the embedded block. According to the punching and locating mechanism for the end of the trim strip, the inclined hole in the embedded block is matched with the wedge, so that when the ejector rod mechanism drops and pushes the wedge to move downwards, through a slope in the inclined hole, the embedded block is driven to drive the product to be cut to move in a small amount to the side of a cutter, and the portion to be cut of the product on the embedded block and the cutter are free of gap; meanwhile, the clamping force of the product to be cut is changed so that burrs can be prevented from being generated in the punching process and the quality of the product after being punched can be well guaranteed.

Description

A kind of for the die-cut detent mechanism in ornamental strip end

Technical field

The utility model belongs to field of mechanical technique, specifically refers to a kind of for the die-cut detent mechanism in ornamental strip end.

Background technology

Various resinae products are installed on existing vehicle, and as ornamental strip, most of ornamental strip bodies pass through the extrusion die extrusion molding of extruder by resinae material.Then, according to the needs of automobile assembling, the end of ornamental strip body is carried out die-cut, to obtain all kinds of required forms.At present, in the time of die-cut above-mentioned ornamental strip, generally first ornamental strip body is positioned on the abaculus of mould, on the counterdie of mould, be fixed with edge and can stretch into the abaculus in ornamental strip body cavity, the position to be cut of the corresponding ornamental strip body of blade of cutting knife, cutting knife is arranged in the gathering sill of cutting die, and by reset that spring supports, the top of cutting knife is provided with the depression bar that is fixed on upper bolster.In the time that beginning is die-cut, along with moving down of upper bolster, depression bar is pressed cutting knife, after cutting knife is moved down, the excess stock at position to be cut on product is cut.

Cooling owing to needing after the extrusion molding of resin (TPO) series products, and in cooling procedure, the variation of have ± 0.5mm of the section configuration of product.And above-mentioned blanking die does not have the function of auto-compensation, therefore, in the time that product is less than normal, after inserting mould abaculus and have gap between cutting knife, this gap can make product section after die-cut with cutting off burr and having step, thereby affect the outward appearance after product cut-out.

Summary of the invention

Technical problem to be solved in the utility model is the present situation for prior art, provide a kind of can adjust clamping force and when die-cut, can eliminate gap between position to be cut and cutting knife for the die-cut detent mechanism in ornamental strip end.

The utility model solves the problems of the technologies described above adopted technical scheme: a kind of for the die-cut detent mechanism in ornamental strip end, comprise that edge is inserted in product cavity and is placed on the abaculus on counterdie, it is characterized in that: on described abaculus, be provided with the bottom-up inclined hole tilting gradually to product side, in this inclined hole, be placed with the voussoir matching with this inclined hole, the upper end of the bottom of this voussoir and the first spring offsets, above this voussoir, be provided with the post rod mechanism that can press this voussoir before die-cut, between described counterdie and abaculus, be provided with the second spring that described abaculus is resetted simultaneously.

As further improvement of the utility model, the first described spring is arranged in the through hole of counterdie, is positioned at the adjusting rod that is threaded on the die bottom plate under described counterdie, and the lower end of the upper end of this adjusting rod and described the first spring offsets.In the time running into product size and change, can rotate adjusting rod, change the stroke of the first spring, clamping force that just can control on demand product, to meet the die-cut needs of different product.

Scheme is preferably, described the second spring can be arranged in the spring eye of abaculus, one end of this second spring and described abaculus offset, the other end offsets with the described counterdie of contiguous product to be cut side, on the described counterdie away from product to be cut side, be fixed with the limited block that the described abaculus of restriction moves simultaneously, now, the form that the second spring is stage clip, can certainly spring be placed on opposite side and becomes the form of extension spring.

In order to ensure the smooth sliding of abaculus, between described abaculus bottom and the upper surface of counterdie, slide rail and the chute arranging and can cooperatively interact along abaculus glide direction can be set.

Preferred scheme is that described post rod mechanism can comprise the push rod in upper module and the slip being fixed on upper bolster the through hole that is limited in upper module, and in described through hole, is provided with the 3rd spring offseting with the top of described push rod.

Compared with prior art, the utility model can be by the cooperation of inclined hole in abaculus and voussoir, make when in the process that post rod mechanism decline promotion voussoir moves down, utilize the inclined-plane in inclined hole, force abaculus to drive product to be cut to make trace to cutting knife side mobile, thereby making between product position to be cut on abaculus and cutting knife is zero clearance, has changed the clamping force of product to be cut simultaneously, there is burr when avoiding die-cut and can effectively guarantee the quality of product after die-cut.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment when die-cut;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the structural representation after die-cut completing in Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Figure 1 to Figure 3, in the present embodiment, product to be cut is the ornamental strip a using on automobile, the blanking die 1 of die-cut this ornamental strip a comprises that the cutting die 12 that is placed on die bottom plate 11, counterdie 13 are with upper bolster 14, cutting knife 15 is arranged in the gathering sill 121 of cutting die 12, and by Compress Spring 16 reset of supporting; On counterdie 13, be fixed with the block b that limits ornamental strip to be cut position; On upper bolster 14, be fixed with the depression bar 17 that is positioned at cutting knife top, in the time that upper bolster 14 moves down, this depression bar 17 can be pressed cutting knife 15 and cutting knife 15 is moved down.

In the present embodiment, in above-mentioned blanking die, increase for the die-cut detent mechanism in ornamental strip end, clamping mechanism device comprises that edge is inserted in ornamental strip inner chamber to be cut and is placed on the abaculus 2 on counterdie 13, on abaculus, be provided with the bottom-up inclined hole 21 tilting gradually to ornamental strip side to be cut, in this inclined hole, be placed with the voussoir 3 matching with this inclined hole, the upper end of the bottom of this voussoir 3 and the first spring 4 offsets, the first spring 4 is arranged in the through hole of counterdie 13, adjusting rod 5 is threaded on aforesaid die bottom plate 11, the lower end of the upper end of this adjusting rod 5 and the first spring 4 offsets, utilize the first spring 4, can make voussoir 3 there is all the time the trend that rises and be exposed to inclined hole 21, and by means of adjusting rod 5, can change the compression travel of the first spring 4, thereby can regulate according to the variation of product size the size of thrust, to meet the die-cut needs of different product.

On aforementioned upper bolster 14 arrange be positioned at voussoir 3 above post rod mechanism 6, post rod mechanism comprises the upper module 61 and the push rod 62 that are fixed on upper bolster 14, wherein push rod 62 slides and is limited in the through hole of upper module 61, in through hole above push rod 62, be also provided with the 3rd spring 63 offseting with the top of push rod simultaneously, under the effect of the 3rd spring 63, push rod 62 exposes downwards, and the bottom after push rod exposes is lower than the lower end of depression bar 17, make before die-cut, push rod 62 first presses voussoir, voussoir 3 can be moved down along inclined hole 21, make abaculus 3 drive ornamental strip to be cut to cutting die side shifting simultaneously, and finally clamp abaculus 2.

In order to ensure the steady movement of abaculus, between abaculus bottom and the upper surface of counterdie, slide rail 7 and the chute 8 arranging and can cooperatively interact along abaculus glide direction are set, refer to Fig. 2.Between counterdie and abaculus, be provided with the second spring 9 that abaculus is resetted simultaneously.In the present embodiment, the second spring 9 is arranged in the spring eye of abaculus 2, one end of this second spring 9 and abaculus 2 offset, and the other end offsets with the counterdie 13 of contiguous ornamental strip side to be cut, are fixed with the limited block 10 that restriction abaculus moves simultaneously on the counterdie away from ornamental strip side to be cut.

When die-cut, first ornamental strip to be cut is stretched into and until end and block b while offseting, again ornamental strip to be cut is fixed on the edge of abaculus, then makes upper bolster move down, drive depression bar and push rod to move down, push rod is first pushed down voussoir and is moved down, simultaneously, by means of the inclined-plane in inclined hole, force abaculus to make trace to cutting die side mobile, making between product position to be cut on abaculus and cutting knife is zero clearance, in the time that push rod compresses abaculus, depression bar starts to press down cutting knife and carries out die-cut position to be cut.Complete once die-cut, when depression bar starts to leave cutting knife, cutting knife resets gradually under the effect of Compress Spring, equally in the time that push rod starts to leave voussoir, voussoir starts to reset under the effect of the first spring, meanwhile, abaculus starts away from cutting knife under the effect of the second spring, until keep off mutually with limited block, at this moment, die-cut good ornamental strip can be taken off from abaculus, go round and begin again like this, realize the die-cut of product.

Claims

1. one kind for the die-cut detent mechanism in ornamental strip end, comprise that edge is inserted in product cavity and is placed on the abaculus on counterdie, it is characterized in that: on described abaculus, be provided with the bottom-up inclined hole tilting gradually to product side, in this inclined hole, be placed with the voussoir matching with this inclined hole, the upper end of the bottom of this voussoir and the first spring offsets, above this voussoir, be provided with the post rod mechanism that can press this voussoir before die-cut, between described counterdie and abaculus, be provided with the second spring that described abaculus is resetted simultaneously, the first described spring is arranged in the through hole of counterdie, be positioned at the adjusting rod that is threaded on the die bottom plate under described counterdie, the lower end of the upper end of this adjusting rod and described the first spring offsets, described the second spring is arranged in the spring eye of described abaculus, one end of this second spring and described abaculus offset, the other end offsets with the described counterdie of contiguous product to be cut side, on the described counterdie away from product to be cut side, be fixed with the limited block that the described abaculus of restriction moves simultaneously.

2. one according to claim 1, for the die-cut detent mechanism in ornamental strip end, is characterized in that: between described abaculus bottom and the upper surface of described counterdie, slide rail and the chute arranging and can cooperatively interact along abaculus glide direction are set.

3. one according to claim 1 is for the die-cut detent mechanism in ornamental strip end, it is characterized in that: described post rod mechanism comprises the push rod in upper module and the slip being fixed on upper bolster the through hole that is limited in upper module, and in described through hole, be provided with the 3rd spring offseting with the top of described push rod.