CN2714197Y - Top-stop block punching forming device for metal slide fastener automatic top-stop machine - Google Patents

Abstract

The utility model provides a top-stop block punching forming device for a metal slide fastener automatic top-stop machine, comprising a die cap, a jumper bar, a left and a right grip dies, a fixed die, a left-hand and a right-hand tools, a sliding bar, a pin group set the lower end of the sliding bar and a bending die matched to act on together. Thereof, the jumper bar is positioned in the slide-way at the center of the die cap; a slot which is arranged at the lower of the jumper bar is able to enter in the left and the right grip dies between which a fixed die and a spring are provided; a toothed rack arranged on the side edge is connected with a driving gear. The sliding bar is arranged in the slide-way at the side end of the die cap, and the sliding bar is pivoted a toothed rack which is connected with the other side of the driving gear. When the driving gear is rotating, the driving gear can drive bilateral toothed racks reversal actuator up and down, which has the jumper bar and the sliding bar set opposite reciprocation transmission elevating in motion. The device has compact conformation and automatic accomplishment and it can clamp on the slide fastener cloth after cutting off the clamp lead of the U-shaped to form the slide fastener top-stop block.

Description

Metal zip fastener is gone up the last backstop punch forming device that ends machine automatically

Technical field

The utility model is applicable to the last backstop of making the copper zipper strip about a kind of backstop punch forming device of going up, and also can be the last backstop of plastic-steel system zipper strip.

Background technology

About the punch forming machine of stop on " copper " zipper strip by previous semi-automatic change into full-automatic, and this automatic moulding machine also has the precursor further to be improved, for example, TaiWan, China is announced " copper zipper strip upper dead flake punch forming machine " No. 188902, and it mainly comprises transmission device, punch forming device, intermittently pay-off, volume send compositions such as device.Wherein, aforementioned in except the punch forming device, it is existing to be all tradition, and the device that has also all possessed on semiautomatic machine.The utility model further improves at the punch forming device, is only further discussed with regard to the punch forming device, and all the other structures are not then related.

The punch forming device is located at head position, body front side in the open case, and it comprises: a L jumper bar 21, a lower push-rod 22, and a flexible piece 23 form.The bottom center of upper plunger 21 has one towards piece 211 again, the matrix band 212 that respectively is pivoted towards the piece both sides, and (claim again: have a spring 213 inner cutter) towards piece 211 and matrix band 212.Respectively be provided with a Cutter apron 24 in the both sides, lower end of jumper bar 21 in addition, respectively be provided with moulding running roller 25 in the below of Cutter apron.

After upper plunger 21 is promoted by transmission device, both having produced reciprocal lifting action, is to be entered towards central authorities by both sides and cut off metal stockline 52, and after upper plunger 21 descends, two matrix bands 212 promptly dash down, and form shear actions with the Cutter apron 24 of flexible piece 223 both sides; Metal wire after the shearing can be bent into U-shaped via after the cooperating of the projection 231 of matrix band 212 and flexible piece 23.Flexible piece 23 after the metal wire moulding, can be subjected to upper plunger 21 compressing and in collapsing into; And then press from both sides movingly inwardly by moulding running roller 25, be sandwiched in zipper strip 5 edges so that go up backstop 51.

In addition, also disclosing the punch forming of stop in TaiWan, China is announced No. 306350 " ending backstop punch forming device on the copper of machine on the slide fastener " case constructs, this case is characterised in that: supporting plate 12 is position central authorities at supporting plate lid 11, the below of supporting plate 11 has an elongated slot, two L shaped forming blocks 17 about the elongated slot bottom can be inserted, insert two curved levers and the left and right sides again in the elongated slot and push away curved lever again with spring 13, two curved levers upper end is pivoted with a latching 18, and lower end position is between forming blocks 15; Curved lever 17 and forming blocks 15 can make metal wire position after the cut-out between curved lever and forming blocks, and are bent into inverted U-shaped last backstop under the cooperation of flexible piece 23; There is a ram seat 21 supporting plate 12 belows again, have push rod 22 and shank 23 in the hollow groove of ram seat.

But case has following shortcoming before announcing No. 188902, for example: not enough owing to two springs, 213 stabilitys when tangent line, easily make and receive behind the elastic force and cause the tangent line instability (after long-time use, the elastic force of spring can disappear, therefore form excesssive gap between Cutter apron 24 and the matrix band 212, so tangent line can't cut off sometimes), also easily produce burr or bending even if cut off metal wire.So coefficient of losses is too big, frequency of maintenance is too high, so have to be improved.

Before announcing No. 306350 in the case, there is a ram seat 21 supporting plate 12 belows, have push rod 22 and shank 23 in the hollow groove of ram seat, this two bar promotes its reciprocal lifting action by two pneumatic cylinders 25,26 respectively, wherein, more comparatively complicated with the structure that promotes push rod 22, because it is to drive push rod 22 by connecting rod 27 again after affecting connecting rod 27 by pneumatic cylinder 25; Cost need cooperate two inductive switches and relevant device owing to increase by two pneumatic cylinders, so except that complex structure, also can promote.If can be simplified, and structure is simplified, will help automation enforcement and cost to reduce.

Novel content

The purpose of this utility model is to provide a kind of metal zip fastener to go up the last backstop punch forming device that ends machine automatically, simple and direct and the energy automation enforcement of this device construction, and can the U-shaped clamp pincers after cutting off is solid on chain cloth and form backstop on the slide fastener, may be implemented in copper, plastic-steel and (comprise O/E: open end zipper; C/E: on zipper strip closed-end zipper) on the backstop punch forming machine.

Concrete structure of the present utility model: a kind of metal zip fastener is gone up the last backstop punch forming device that ends machine automatically, this punch forming device comprises that a die cap, a jumper bar, left and right clamping die, a fixed die, left and right cutting knife, a sliding bar, be located at the pin groups of sliding bar lower end, other cooperates a bending die and common implementing, its can make metal wire after the cut-out in addition punching out become the U type on backstop and being fixed on the zipper strip, it is characterized in that:

The jumper bar position is in die cap central authorities chute, and the below has a short slot can be inserted left and right clamping die and be provided with a fixed die and spring between the two, and side is provided with tooth bar and is connected with travelling gear; Sliding bar is located in the chute of die cap side again, and the tooth bar that is pivoted is connected with the travelling gear another side; The tooth bar that can drive both sides when travelling gear rotates is done upper and lower reverse start, makes jumper bar and sliding bar produce opposite reciprocal transmission lifting action.

According to described, its supplementary features are: the Lower Half of fixed die between two clamping dies is positioned at the fixed die top and locates then to press from both sides to establish the bigger spring of a poundage between two clamping dies.

Its supplementary features also are: pin groups by preceding contact pin, the position behind preceding contact pin back contact pin, the position before preceding contact pin guiding block and be fixed on guiding block before the contact pin fixed head formed.

In aforementioned again, two curved levers of case before left and right clamping die of the present utility model is equivalent to, fixed die then is equivalent to the piece that dashes of preceding case; And fixed die length of the present utility model is short and be positioned at Lower Half between two clamping dies, and be located at the first half between two clamping dies with the bigger spring clip of single poundage, adopt tiny spring and contact with case curved lever before replacing towards piece, and then the not enough shortcoming of case spring stability before solving.

Enforcement of the present utility model has following advantage:

1. make tangent line more stable, can not produce burr or buckling phenomenon.

2. result of use is better, and the life-span is longer, and the position of backstop is also incited somebody to action more accurate correct on the copper.

3. it is simple and direct to go up backstop punch forming Design of device, and its automation is implemented, and makes to produce to meet economic benefit, reaches value on the industry.

Following according to the embodiment shown in the drawing describe in detail as after.

Description of drawings

Fig. 1: the three-dimensional exploded view of backstop punch forming device on the utility model.

Fig. 2: the utility model is gone up the stereo appearance figure that ends after machine combines automatically with metal zip fastener.

Fig. 3: the utility model is gone up another visual angle outside drawing that ends after machine combines automatically with metal zip fastener.

Fig. 4: the utility model is gone up another visual angle outside drawing that ends after machine combines automatically with metal zip fastener.

Fig. 5: the schematic diagram that the utility model jumper bar does not descend and sliding bar does not rise.

Fig. 6: the schematic diagram after the utility model jumper bar descends and sliding bar rises.

The specific embodiment

As shown in Figure 1, automatically go up the three-dimensional exploded view of the last backstop punch forming device that ends machine for the utility model metal zip fastener, disclose a last backstop punch forming device 10 that combines with pedestal 20 among the figure, its central authorities' back of the body end and the place ahead side at die cap 11 is respectively equipped with chute 111,112 with ccontaining jumper bar 12 and sliding bar 13, and having a short slot 121, jumper bar 12 lower ends can supply left clamping die 122, right clamping die 123 and fixed die 124 are provided with, and the Lower Half of fixed die 124 between two clamping dies, two clamping dies 122, being positioned at fixed die 124 tops between 123 locates then to press from both sides to establish a spring 125, the spring that this spring 125 discloses case is thick, therefore comparatively durable on using, another tooth bar 126 is located on the jumper bar 12 and with travelling gear 17 and is connected; Sliding bar 13 also is provided with a tooth bar 131 and is connected with travelling gear 17 another sides, the lower end pin groups 14 of being formed by preceding contact pin 141, back contact pin 142, guiding block 143 and contact pin fixed head 144 that then is pivoted, and sliding bar 13 is inserted chute 112 backs and is covered with a slide lid 132; The jumper bar tooth bar 126 that can drive both sides when travelling gear 17 rotations is done upper and lower reverse start with sliding bar tooth bar 131, so the change that turns to by travelling gear 17 can make jumper bar 12 and sliding bar 13 produce opposite reciprocal transmission lifting action, described again travelling gear 17 is connected (as shown in Figure 2) via the guide groove 21 of pedestal 20 with transmission device 30.

In addition, both sides, pedestal 20 lower end are provided with cutting knife 151,152, and the bottom surface then is provided with a bending die 16 of being made up of flexible piece 161, spring 162, spring base 163, bottom 164, moulding running roller 165 and door 164; Should have three projections by flexible piece 161 front ends, wherein, about the shape of two projection 161c, 161a the same, and the shape of central projection 161b is big and have an inclined-plane, all remains with a suitable spacing between three projections; When aforementioned jumper bar 12 times towards the time, left and right sides clamping die 122,123 on the jumper bar also with under dash, can form shear action with cutting knife 151,152, and the metal stockline 75 that order is intermittently sent into produces the spacing cut-out, and the metal wire that cuts off can be shaped to inverted U-shaped shape by the effect of flexible piece 161, cooperate moulding running roller 165 that bottom 164 both sides are pivoted to be fixed in and to be divided on the refining cloth on both sides at last again with leading U-shaped metal wire pincers by pin groups 14.Flexible again piece 161 rear ends are provided with spring 162 and contact spring base 163, so that flexible piece 161 has back and forth flexible effect, because flexible piece 161 and whole bending die 16 are not new construction at this, but traditional existing structure is promptly given unnecessary details no longer in detail in this.

As shown in Figure 2, for the utility model is gone up the stereo appearance figure that ends after machine combines automatically with metal zip fastener, be located at pedestal 20 the place aheads by learning backstop punch forming device 10 among the figure, pedestal 20 rears are provided with transmission device 30 and import assembly pulley 40, and pedestal 20 lower ending pivots are provided with slide fastener guide groove 50 and are positioned at the conveying device 60 of forefront; Please consult Fig. 3, shown in Figure 4 simultaneously again, for the utility model is gone up another visual angle outside drawing that ends after machine combines automatically with metal zip fastener, so that be easier to understand the relevant position of each member.Wherein, conveying device 60 drives roller 62 rotations with motor 61, and cooperating hand adjustment bars 64 to control the elasticity of two-wheeled cramping chain belt 80 with clip wheel 63,80 starts by conveying device 60 of chain belt are able to forwards carry through slide fastener guide grooves 50 from importing assembly pulley 40.Secondly, slide fastener guide groove 50 upper/lower terminals are respectively equipped with inductive component 51,52 and relevant push rod 53,54 and a pneumatic cylinder 55 and control pause and location in chain belt 80 transport process, to cooperate the start of punch forming device 10, and then will go up the backstop punching out and in position locate, because this is a known technology, so no longer described in detail.

Fig. 5, shown in Figure 6, be the utility model punch forming device jumper bar and sliding bar relevant position schematic diagram, sliding bar tooth bar 131 is descended and 126 risings of jumper bar tooth bar, and then drive jumper bar 12 risings and sliding bar 13 declines (as shown in Figure 5); Sliding bar tooth bar 131 is risen and 126 declines of jumper bar tooth bar, and then drive jumper bar 12 declines and sliding bar 13 risings (as shown in Figure 6).In addition, from learning shown in two figure that punch forming device 10 both sides are respectively equipped with pay-off 70, this pay-off 70 includes members such as feeding rod 71, roller 72, little material feeding seat 73 and big material feeding seat 74, responsible metal stockline 75 is sent in the cutting knife 151,152 sheared and pressing operation, rectangular metal stockline 75 then is around hanging over (as Fig. 2, Fig. 3, shown in Figure 4) on the fixed mount 76, pay-off 70 also is a conventional construction again, so do not give unnecessary details its structure and start principle in detail.

Claims (3)

1. a metal zip fastener is gone up the last backstop punch forming device that ends machine automatically, this punch forming device comprises that a die cap, a jumper bar, left and right clamping die, a fixed die, left and right cutting knife, a sliding bar, be located at the pin groups of sliding bar lower end, and a bending die and common constitute, it is characterized in that:

Jumper bar is arranged in the die cap central authorities chute, and the jumper bar below also has a short slot, and left and right clamping die is arranged in the described short slot, and is provided with a fixed die and spring between the left and right clamping die, and side is provided with the tooth bar that is connected with travelling gear; Sliding bar is located in the chute of die cap side, and the tooth bar that is connected with the travelling gear another side that is pivoted is connected with the travelling gear another side.

2. the automatic last backstop punch forming device that ends machine of going up of metal zip fastener as claimed in claim 1 is characterized in that: the Lower Half of fixed die between two clamping dies is positioned at the fixed die top and locates then to press from both sides to establish the bigger spring of a poundage between two clamping dies.

3. metal zip fastener as claimed in claim 1 is automatically gone up the last backstop punch forming device that ends machine, it is characterized in that: pin groups by back contact pin behind preceding contact pin of preceding contact pin, position, before preceding contact pin guiding block and be fixed on guiding block before the contact pin fixed head formed.

Images