CN113976758B

CN113976758B - Continuous production molding equipment for zipper teeth

Info

Publication number: CN113976758B
Application number: CN202111044447.5A
Authority: CN
Inventors: 陈飞
Original assignee: Guangzhou Xinghui Zipper Co ltd
Current assignee: Guangzhou Xinghui Zipper Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2024-01-23
Anticipated expiration: 2041-09-07
Also published as: CN113976758A

Abstract

The invention discloses continuous production molding equipment for zipper teeth, which belongs to the technical field of zippers and comprises a rack, a processing platform, a stamping device and a conveying structure, wherein an upper die of the stamping device comprises a cutter holder and a cutting tool which are arranged from top to bottom, the cutting tool is a linear section, the lower end of the cutting tool is provided with a punching surface, and the punching surface is provided with an arc-shaped cutter edge and a tooth-shaped cutter edge which is bilaterally symmetrical; a concave cavity is formed in one side, close to the arc-shaped knife edge, of the cutter body, and the area of a cross section notch of the concave cavity along the extending direction of the linear material is larger than that of the arc-shaped knife edge; a single spindle is arranged to be connected with a motor, and power is synchronously provided for blanking movement of a dragging wheel, a feeding wheel and an upper die, so that simultaneous operation of cloth belt guiding in/out, dental floss conveying and blanking forming of zipper teeth is realized, and continuous processing forming of the zipper teeth is ensured; by arranging the concave cavity on one side of the cutting tool close to the arc-shaped knife edge, the zipper teeth are prevented from being blocked on the cutting edge of the blanking tool, and automatic demoulding is realized.

Description

Continuous production molding equipment for zipper teeth

Technical Field

The invention belongs to the technical field of zippers, and particularly relates to continuous production molding equipment for zipper teeth.

Background

The metal zipper is widely applied to the fields of clothing processing, case production and the like. As the most core component of the metal zipper, the production of the zipper teeth and the quality of finished products directly determine the side pull strength of the metal zipper. Currently, the production forms of fastener elements are mainly classified into a Y-wire method and a pressurizing method. In the Y wire method, the metal wire with basically Y-shaped section is cut into preset thickness and then pressed on the zipper tape one by one, so that the surface of the produced zipper teeth is smooth and attractive in appearance, but the occupied area of production equipment required by the Y wire method is overlarge, the production cost is high, and the production equipment is not suitable for the production requirements of medium and small enterprises; in the pressurizing method, flat wires are pressed and cut by a cutter, zipper teeth are pressed on a zipper cloth belt one by one while being punched, the zipper teeth are produced by adopting the pressurizing method, the produced zipper teeth are smooth and durable, the required production equipment cost is low, and the occupied area is small; therefore, the pressurizing method is widely used for the production and manufacture of fastener elements.

However, the existing zipper teeth production equipment still has a plurality of problems when cutting and producing the zipper teeth: firstly, in order to facilitate the combination and clamping of the tooth legs of the zipper teeth on the cloth belt, a concave part is usually arranged at the joint of the tooth heads and the tooth legs of the zipper teeth, and when the zipper teeth with the concave part are punched by conventional zipper tooth production equipment, the zipper teeth are easily clamped on the cutting edge of a cutter after being cut, so that automatic demolding cannot be realized, and the continuous production of the zipper teeth is affected; secondly, in order to enable the zipper teeth to obtain larger biting force on the cloth belt, protrusions are arranged on the inner sides of two tooth legs of the zipper teeth, the traditional zipper teeth production equipment cannot realize one-time punching separation of the zipper teeth, when the zipper teeth are typeset on the dental floss, larger gaps are reserved between every two zipper teeth, and the zipper teeth are subjected to repeated punching forming through trimming, cutting-off and the like, so that the dental floss has more consumables and higher production cost; finally, the die-cut face of traditional cutting tool wears along with die-cut number of times increases, in order to guarantee the cutting precision of zip fastener tooth, need regularly change cutting tool to die-cut lathe, and cutting tool life is short, the loss is high, economic benefits is poor.

Therefore, in order to solve the problems in the prior art, it is highly desirable to provide a continuous production molding device for fastener elements, which is easy to demould and has less punching consumables.

Disclosure of Invention

The invention provides a continuous production molding device for zipper teeth, which aims at solving the technical problems existing in the prior art.

The technical scheme of the invention is realized as follows: a continuous production molding device for zipper teeth is used for blanking and molding the zipper teeth from a dental floss and pressing the zipper teeth on a cloth belt, and comprises a frame, a processing platform, a stamping device and a conveying structure which are arranged on the frame,

the processing platform is positioned at the upper part of the frame and fixedly connected with the frame, and the stamping device is arranged on the processing platform;

the stamping device comprises an upper die, a lower die, a convergence hammer and a male die/female die punch,

the upper die comprises a cutter holder and a cutting tool which are arranged from top to bottom, the cutting tool comprises a cutter body which is a linear material, the upper end of the cutter body is provided with a clamping part which is used for being fixed with the cutter holder, the lower end of the cutter body is provided with a punching surface, and the punching surface is provided with an arc-shaped cutting edge for cutting and a tooth-shaped cutting edge which is symmetrical left and right and used for cutting edges;

in the invention, the tooth profile edge and the arc edge are simultaneously arranged on the cutting tool of the continuous production forming equipment for the zipper teeth, so that typesetting distribution of the zipper teeth on the tooth wires is further optimized, the cutting tool can realize cutting edge and cutting of the tooth wires by one-time cutting, the cutting production efficiency is high, the consumption of the tooth wires is less, and the production cost is greatly reduced;

a concave cavity is formed in one side, close to the arc-shaped knife edge, of the cutter body, and the area of a cross section notch of the concave cavity along the extending direction of the linear material is larger than that of the arc-shaped knife edge; the punching surface is provided with a clearance groove for clearance of the zipper tooth convex points, the vertex angle of the punching surface is also provided with a guide post, and the guide post protrudes outwards along the extending direction of the profile;

according to the invention, the structural design of the cutting tool is optimized, and the concave cavity is formed on one side, close to the arc-shaped edge, of the cutting tool, so that the zipper teeth are prevented from being clamped on the cutting edge of the cutting tool after being punched, the automatic demolding of the zipper teeth is realized, the stability and reliability are ensured, the continuous operation of the zipper tooth forming equipment is ensured, and the production efficiency is improved;

the lower die corresponds to the cutting edge of the cutting tool of the upper die in size, the upper die moves from top to bottom and is matched with the lower die to punch out the zipper teeth, the male die/female die punch is used for punching and modeling the tooth heads of the zipper teeth, and the convergence hammer is used for pressing and combining the leg parts of the punched zipper teeth on the cloth belt;

the conveying structure comprises a main shaft, the front end of the main shaft is connected with a motor in a driving way, the rear end of the main shaft is provided with a manual wheel for manually driving the continuous production molding equipment of the zipper teeth, the middle section of the main shaft is sequentially provided with a dragging eccentric wheel, a die eccentric wheel and a feeding eccentric wheel,

the dragging eccentric wheel is provided with a dragging connecting rod, the dragging connecting rod is connected to the dragging wheel, and the dragging wheel is driven to drag the cloth belt to be conveyed by the rotation of the dragging eccentric wheel;

a connecting sleeve is arranged on the die eccentric wheel and hinged with the upper die to drive the upper die to reciprocate up and down;

the feeding eccentric wheel is provided with a feeding connecting rod, the feeding connecting rod is connected to the feeding wheel, and the feeding wheel is driven by the rotation of the feeding eccentric wheel to convey dental floss for blanking and forming the zipper teeth for the stamping device.

Preferably, the cutting tool is integrally formed, two sides of the tool body are respectively provided with a trimming groove which is bilaterally symmetrical, and the front surface of the tool body is provided with a cutting groove;

the punching surface is intersected with the trimming groove to form the tooth-shaped knife edge, and is intersected with the cutting groove to form the arc-shaped knife edge;

the distance between the concave cavity and the punching surface in the extending direction of the linear section is 1 mm-3 mm.

The zipper teeth are integrally formed by arranging the cutting tools, so that the accuracy is higher, and the zipper teeth are stable and reliable;

when the cutting tool punches dental floss, the cutting tool is pressed down, and the reaction force directly acts on the punching surface of the cutting tool, so that the punching surface is required to have a certain thickness to ensure the rigidity of the tool, and the service life is prolonged.

Preferably, the cutting tool is a combined tool and comprises a left tool unit, a right tool unit and an alloy sheet, wherein the left tool unit is fixedly connected with the right tool unit to form the tool body in a combined mode, the alloy sheet is arranged at the lower part of the tool body and is buckled with the tool body, and the lower end face of the alloy sheet forms the punching face; the thickness of the alloy sheet is 1 mm-3 mm;

it should be noted that, the die-cut surface of the cutting tool in this embodiment has a certain service life, if the die-cut surface is worn too much, in order to ensure the production precision of the zipper teeth, the die-cut surface needs to be reprocessed, cut off from the end extending from the concave cavity of the tool, and be milled again;

furthermore, the cutting tool is set to be a combined tool, specifically, the lower end face of the alloy sheet is set to form the punching face, and if the cutting tool is excessively worn, only the alloy sheet needs to be replaced, so that the service life of the cutting tool is greatly prolonged.

Further preferably, the tooth-shaped knife edge is provided with a first concave part, a first convex part and a second concave part, the outer contour line of the first convex part is in arc transition, the contour line of the first concave part forms an included angle alpha, and the contour line of the second concave part forms an included angle beta, wherein the included angle beta is more than 0 degrees and less than alpha and less than 180 degrees;

in order to improve the cutting efficiency of the zipper teeth, further, the first concave part, the first convex part and the second concave part are arranged on the tooth-shaped knife edge, and the trimming and trimming of the dental floss are realized through repeated up and down punching of the upper die, so that the efficiency is high and the material consumption is low.

Further preferably, the first concave part comprises a first contour line and a second contour line, wherein an included angle gamma is formed between the second contour line and the symmetrical surface of the tooth-shaped knife edge, and the included angle gamma is more than or equal to 32 degrees and less than or equal to 38 degrees;

it should be noted that, the included angle between the tooth leg of the traditional zipper tooth and the symmetry plane is greater than 45 degrees, in order to facilitate the combination of the tooth leg of the zipper tooth, further, the arc-shaped edge of the cutting tool is optimized, so that the combination rotation angle is smaller when the two tooth legs of the cut and formed zipper tooth are combined, the stability of the zipper tooth on a cloth belt is improved, and the lateral pull resistance of the zipper tooth is improved.

Further preferably, the whole arc-shaped knife edge is bell-shaped and comprises a head part and a tail part which are symmetrically arranged left and right, and the joint of the head part and the tail part is provided with second convex parts, and the distance between every two second convex parts is smaller than the width dimension of the head part of the arc-shaped knife edge;

on the one hand, when the traditional zipper teeth are combined on the cloth belt, the phenomena of tooth distortion, tooth disengagement and the like are often caused by insufficient biting force, and in order to improve the biting property of the zipper teeth, the arc-shaped edge of a cutting tool is further optimized, and when the zipper teeth are cut and separated, the second convex part is firmly embedded into the zipper cloth belt under the closing action of a convergence hammer, so that the frictional resistance of the zipper teeth to the zipper cloth belt is additionally increased, and the zipper teeth are kept in a stable installation state on the zipper cloth belt;

on the other hand, the width dimensions of the head part and the tail part of the arc-shaped knife edge are reasonably configured, so that the rigidity of the cut and formed zipper teeth is ensured, punching consumable materials are reduced, and the production and manufacturing cost of single zipper teeth is reduced.

Further preferably, the notch shape of the cross section of the concave cavity along the extending direction of the linear material is similar to a trapezoid;

when the traditional cutting tool cuts the zipper teeth with the concave parts, the zipper teeth are easily clamped on the cutting edge of the tool after being cut, and automatic demolding cannot be realized; in order to avoid the occurrence of such a situation, a concave cavity is formed, the area of a notch of the cross section of the concave cavity is ensured to be larger than the area of the arc-shaped knife edge, specifically, the notch is shaped like a trapezoid, two sides of the trapezoid are smoothly transited, and smooth demoulding of the zipper teeth is realized.

The extension length of the concave cavity on the wire section bar ranges from 4mm to 15mm;

in order to ensure the realization of the automatic demolding function of the zipper teeth and the overall rigidity of the cutting tool, further, the extension length of the concave cavity on the linear section bar is reasonably configured, the overall rigidity of the cutting tool is prevented from being damaged by the overlong extension range of the concave cavity, and meanwhile, the proper concave cavity is arranged, so that the forming and cutting of the cutting tool can be effectively reduced, and the production and processing cost of the cutting tool is reduced.

Further preferably, the guide post comprises a front guide post and a rear guide post which are bilaterally symmetrical, the cross section of the front guide post along the extending direction of the section bar is larger than the cross section of the rear guide post along the extending direction of the section bar, and the tail end of the guide post is also provided with a chamfer;

in order to achieve a good guide effect of the guide post, a chamfer is arranged at the tail end of the guide post, so that the guide post can be more smoothly guided into the lower die when the cutting tool is pressed down, and the stable punching effect of the cutting tool is achieved.

Preferably, the stamping device further comprises a feeding assembly, the feeding assembly comprises a feeding shaft, a feeding gear and an aligning component, the dental floss is arranged on the feeding gear, the feeding gear is in driving connection with the feeding wheel through the feeding shaft, and the feeding wheel provides power for conveying the dental floss;

the two sides of the dental floss conveying track are also provided with aligning components which are symmetrically distributed left and right, the aligning components are abutted against the two sides of the dental floss, and the direction deviation of the dental floss conveying track is regulated by the limit of the aligning components;

in order to ensure continuous production and forming of the zipper teeth, a single spindle is further arranged to be connected with a motor, power is synchronously provided for blanking movement of the dragging wheel, the feeding wheel and the upper die, simultaneous operation of cloth belt guiding in/out, conveying of dental floss and blanking forming of the zipper teeth is realized, and the continuous uninterrupted processing and forming of the zipper teeth are guaranteed.

Preferably, the upper die is also provided with a guide assembly, the guide assembly comprises an upper guide seat, a lower guide seat and a plurality of guide shafts connected with the upper guide seat and the lower guide seat,

the upper guide seat is fixedly connected with the tool holder, the lower die is correspondingly provided with through holes for a plurality of guide shafts of the upper die to pass through, and the lower guide seat is hinged with the connecting sleeve;

during blanking, the die eccentric wheel rotates to drive the guide assembly to reciprocate up and down, and the synchronous linkage cutting tool completes downward blanking and upward resetting;

in order to ensure the blanking stability of the upper die, a guide assembly is further arranged, specifically, a plurality of guide shafts are in sliding fit with the through holes, so that guide positioning is provided for the cutting action of the upper die, and the continuous operation and the reliability of the equipment are ensured.

The invention has the beneficial effects that:

(1) The tooth-shaped knife edge and the arc-shaped knife edge are arranged on the cutting tool of the continuous production molding equipment for the zipper teeth, so that typesetting distribution of the zipper teeth on the dental floss is further optimized, the cutting tool can cut the dental floss at one time, the trimming and cutting of the dental floss can be realized, the cutting production efficiency is high, the dental floss consumable is less, and the production cost is greatly reduced;

(2) The arc-shaped knife edge on the punching section of the cutting tool is optimized, so that the tooth legs of the cut zipper teeth are provided with bulges, the biting force of the zipper teeth on a cloth belt is enhanced, the single zipper teeth are prevented from falling off due to the side pulling action, and the quality of a zipper product is improved;

(3) By arranging the concave cavity on one side of the cutting tool close to the arc-shaped knife edge, the zipper teeth are prevented from being blocked on the cutting edge of the cutting tool after being cut, the automatic demolding of the zipper teeth is realized, the stability and the reliability are ensured, the continuous operation of the zipper tooth production equipment is ensured, and the production efficiency is improved;

(4) Through setting up independent die-cut alloy piece, be convenient for change the alloy piece of wearing and tearing, improve cutting tool's actual life.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a feeding assembly according to the present invention;

FIG. 3 is a feed schematic of the feed assembly of the present invention;

FIG. 4 is a schematic view of a toolholder and cutting tool according to the invention;

fig. 5 is a schematic structural view of a cutter according to embodiment 1 of the present invention;

FIG. 6 is a front view of a punched section of example 1 of the present invention;

FIG. 7 is an enlarged partial view of section a of example 1 of the present invention;

FIG. 8 is a front view of a cavity of embodiment 1 of the present invention;

FIG. 9 is a B-B cross-sectional view of a cavity of example 1 of the present invention;

FIG. 10 is a C-C cross-sectional view of a cavity of example 1 of the present invention;

FIG. 11 is a schematic view showing the structure of a cutter according to embodiment 2 of the present invention;

FIG. 12 is a schematic structural view of an alloy sheet according to example 2 of the present invention;

FIG. 13 is an exploded view of the cutter of embodiment 2 of the present invention;

fig. 14 is a schematic diagram of blanking of the fastener element of the present invention;

FIG. 15 is a schematic drawing of the stripping of the fastener element of the present invention;

reference numerals:

a00, a cutter body; a01, cutting off the groove; a02, trimming grooves; b00, dental floss; b01, zipper teeth;

1. a clamping part; 11. a left cutter unit; 11a, left clamping position; 12. a right cutter unit; 12a, right clamping position; 13. a screw; 14. alloy sheets;

2. cutting into sections; 21. tooth-shaped knife edge; 211. a first concave portion; 211a, a first contour line; 211b, a second contour line; 212. a first convex portion; 213. a second concave portion; 22. an arc-shaped knife edge; 221. a head; 222. tail part; 223. a second convex portion; 23. a left fastener; 24. a right fastener;

3. a guide post; 31. a front guide post; 32. a rear guide post;

4. a cavity;

5. an empty-avoiding groove;

6. a punching device; 601. a convergence hammer; 602. a lower die; 603. removing the material mould; 604. a punch; 605. an alignment member; 606. a feed gear; 607. a feeding shaft; 608. a tool holder; 609. a brake wheel; 610. a guide assembly; 610a, upper guide seat; 610b, a guide shaft; 610c, lower guide seats;

701. a frame; 702. a belt pulley; 703a, dragging eccentric wheel; 703b, a tow link; 703c, towing wheels; 704. a main shaft; 705a, mold eccentric; 705b, a coupling sleeve; 706. a processing platform; 707a, feeding eccentric wheel; 707b, a feed link; 707c, a feeding wheel; 708. a manual wheel; 709. cloth belt base.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

As shown in fig. 1 to 10 and fig. 14 and 15, a fastener element continuous production molding apparatus for blanking and molding a fastener element B01 from a floss tape B00 and pressing it onto a tape, comprises a frame 701, and a processing platform 706, a punching device 6 and a conveying structure provided on the frame 701,

the processing platform 706 is located at the upper part of the frame 701 and is fixedly connected with the frame 701, and the punching device 6 is arranged on the processing platform 706;

the stamping device 6 comprises an upper die, a lower die 602, a converging hammer 601 and a punch/die head 604,

the upper die comprises a cutter holder 608 and a cutting tool which are arranged from top to bottom, the cutting tool comprises a cutter body A00 which is a linear material, the upper end of the cutter body A00 is provided with a clamping part 1 which is used for being fixed with the cutter holder 608, the lower end of the cutter body A00 is provided with a punching surface 2, and the punching surface 2 is provided with an arc-shaped cutter edge 22 for cutting and a tooth-shaped cutter edge 21 which is symmetrical left and right and used for trimming;

in the invention, the tooth form knife edge 21 and the arc-shaped knife edge 22 are arranged on the cutting knife of the continuous production forming equipment of the zipper teeth B01, so that typesetting distribution of the zipper teeth B01 on the dental floss B00 is further optimized, the cutting knife can cut the dental floss B00 at one time, the cutting and cutting of the dental floss B00 can be realized, the cutting production efficiency is high, the consumption of the dental floss B00 is less, and the production cost is greatly reduced;

preferably, the cutting tool is integrally formed, two sides of the tool body A00 are respectively provided with a side cutting groove A02 which is bilaterally symmetrical, and the front surface of the tool body A00 is provided with a cutting groove A01;

the punching surface 2 is intersected with the trimming groove A02 to form the tooth-shaped knife edge 21, and is intersected with the cutting groove A01 to form the arc-shaped knife edge 22;

the distance between the concave cavity 4 and the punching surface 2 in the extending direction of the linear section bar ranges from 1mm to 3mm.

The cutting tool is integrally formed, so that the accuracy is higher, and the cutting tool is stable and reliable when the zipper teeth B01 are processed;

when the cutting tool punches the dental floss B00, the cutting tool is pressed down, and the reaction force directly acts on the punching surface 2 of the cutting tool, so that the punching surface 2 needs to have a certain thickness to ensure the rigidity of the tool, and the service life is prolonged.

In this embodiment, the toothed blade 21 is provided with a first concave portion 211, a first convex portion 212 and a second concave portion 213, the outer contour line of the first convex portion 212 is in arc transition, the contour line of the first concave portion 211 forms an included angle α, and the contour line of the second concave portion 213 forms an included angle β, where 0 ° < β < α < 180 °; the angle α is preferably 90 ° and the angle β is preferably 35 °.

In order to improve the cutting efficiency of the fastener element B01, the first concave portion 211, the first convex portion 212, and the second concave portion 213 are further provided in the tooth edge 21, and the trimming of the dental floss B00 are realized by repeating the up and down punching of the upper die, with high efficiency and less material consumption.

In the present embodiment, the first concave portion 211 includes a first contour line 211a and a second contour line 211b, and the second contour line 211b forms an included angle γ with the symmetrical surface of the toothed blade 21, and is 32 ° or more and 38 ° or less; in this embodiment, the included angle γ is preferably 35 °.

It should be noted that, the included angle between the leg of the conventional zipper tooth B01 and the symmetry plane is greater than 45 °, in order to facilitate the combination of the legs of the zipper tooth B01, further, the arc-shaped edge 22 of the cutting tool is optimized, so that the combination rotation angle is smaller when the two legs of the cut and formed zipper tooth are combined, which is beneficial to improving the stability of the engagement of the zipper tooth on the cloth belt and improving the side pull strength of the zipper tooth B01.

In this embodiment, the arc-shaped blade 22 is bell-shaped and includes a head 221 and a tail 222 symmetrically disposed about each other, and a second protrusion 223 is disposed at the junction of the head 221 and the tail 222, and the distance between every two second protrusions 223 is smaller than the width dimension of the head 221 of the arc-shaped blade 22;

on the one hand, when the traditional zipper teeth B01 are combined on the cloth belt, the phenomena of 'askew teeth', 'tooth removal', and the like of the zipper teeth are often caused by insufficient biting force, in order to improve the biting property of the zipper teeth B01, further, the arc-shaped knife edge 22 of the cutting tool is optimized, and when the zipper teeth B01 are cut and separated, the second convex part 223 is firmly embedded into the zipper cloth belt under the gathering action of the convergence hammer 601, so that the frictional resistance of the zipper teeth B01 to the zipper cloth belt is additionally increased, and the zipper teeth are kept in a stable installation state on the zipper cloth belt;

on the other hand, the width dimensions of the head 221 and the tail 222 of the arc-shaped blade 22 are reasonably configured, so that the rigidity of the cut and formed zipper teeth B01 is ensured, punching consumable materials are reduced, and the production and manufacturing cost of the single zipper teeth B01 is reduced.

In this embodiment, the cross-sectional notch shape of the concave cavity 4 along the extending direction of the wire is trapezoid-like;

when the traditional cutter cuts the zipper teeth B01 with the concave parts, the zipper teeth B01 are easy to clamp on the cutting edge of the cutter after being cut, and automatic demolding cannot be realized; in order to avoid such a situation, the concave cavity 4 is provided, and the cross section notch area at the concave cavity 4 is ensured to be larger than the area of the arc-shaped knife edge 22, specifically, the notch shape is set to be like a trapezoid, two sides of the trapezoid are smoothly transited, and smooth demoulding of the zipper tooth B01 is realized.

A concave cavity 4 is formed in one side, close to the arc-shaped knife edge 22, of the cutter body A00, and the area of a notch of the cross section of the concave cavity 4 along the extending direction of the linear material is larger than the area of the arc-shaped knife edge 22; the punching surface 2 is provided with a clearance groove 5 for avoiding the protruding points of the zipper teeth B01;

the extension length of the concave cavity 4 on the wire section bar ranges from 4mm to 15mm; preferably an extension length of 6mm;

in order to ensure the realization of the automatic demolding function of the zipper teeth B01 and the overall rigidity of the cutting tool, further, the extension length of the concave cavity 4 on the wire section bar is reasonably configured, the overall rigidity of the cutting tool is prevented from being damaged by the extension range of the overlong concave cavity 4, meanwhile, the proper concave cavity 4 is arranged, the forming and cutting of the cutting tool can be effectively reduced, and the production and processing cost of the cutting tool is reduced.

A guide post 3 is further arranged at the vertex angle position of the punching surface 2, and the guide post 3 protrudes outwards along the extending direction of the profile;

further preferably, the guide post 3 includes a front guide post 31 and a rear guide post 32 that are bilaterally symmetrical, the cross section of the front guide post 31 along the extending direction of the profile is larger than the cross section of the rear guide post 32 along the extending direction of the profile, and the tail end of the guide post 3 is further provided with a chamfer; specifically, the chamfer size is 0.2mm x45 degrees;

in order to achieve a good guide effect of the guide post 3, a chamfer is arranged at the tail end of the guide post 3, so that the guide post 3 can be more smoothly guided into the lower die 602 when the cutting tool is pressed down, and the effect of stable punching of the cutting tool is achieved.

In the embodiment, the structural design of the cutting tool is optimized, and the concave cavity 4 is arranged on one side, close to the arc-shaped knife edge 22, of the cutting tool, so that the zipper teeth B01 are prevented from being clamped on the cutting edge of the cutting tool after being cut, the automatic demolding of the zipper teeth B01 is realized, the stability and the reliability are ensured, the continuous operation of the molding equipment of the zipper teeth B01 is improved, and the production efficiency is improved;

the lower die 602 corresponds to the cutting edge of the cutting tool of the upper die, the upper die moves from top to bottom and is matched with the lower die 602 to punch out the zipper teeth B01, the male die/female die punch 604 is used for punching and modeling the tooth heads of the zipper teeth B01, and the convergence hammer 601 is used for pressing and combining the leg parts of the punched zipper teeth B01 on the cloth belt;

in this embodiment, the apparatus further includes a stripping die 603, a spring (not shown) is disposed at the bottom of the stripping die 603, and after the upper die and the lower die 602 cooperate to die-cut the excess material of the dental floss B00, the excess material is automatically discharged through the elastic recovery effect of the spring.

The conveying structure comprises a main shaft 704, the front end of the main shaft 704 is in driving connection with a motor (not shown), in this embodiment, the conveying structure further comprises a belt pulley 702, the belt pulley 702 is connected with the motor through a belt, a manual wheel 708 is arranged at the rear end of the main shaft 704 and is used for carrying out manual driving operation on the continuous production forming equipment of the zipper teeth B01, a dragging eccentric wheel 703a, a die eccentric 705a and a feeding eccentric 707a are sequentially arranged at the middle section of the main shaft 704,

a dragging connecting rod 703b is arranged on the dragging eccentric wheel 703a, the dragging connecting rod 703b is connected to a dragging wheel 703c, and the dragging wheel 703c is driven by the rotation of the dragging eccentric wheel 703a to drag the cloth belt to be conveyed;

a coupling sleeve 705b is arranged on the die eccentric wheel 705a, and the coupling sleeve 705b is hinged with the upper die to drive the upper die to reciprocate up and down;

the feeding eccentric wheel 707a is provided with a feeding connecting rod 707B, the feeding connecting rod 707B is connected to a feeding wheel 707c, and the feeding wheel 707c is driven by the rotation of the feeding eccentric wheel 707a to convey the dental floss B00 for blanking the zipper teeth B01 to the punching device 6.

In this embodiment, the stamping device 6 further includes a feeding assembly, where the feeding assembly includes a feeding shaft 607, a feeding gear 606, and an alignment component 605, the dental floss B00 is disposed on the feeding gear 606, the feeding gear 606 is in driving connection with the feeding wheel 707c through the feeding shaft 607, and the feeding wheel 707c provides power for conveying the dental floss B00;

in this embodiment, a brake wheel 609 is further disposed between the feeding wheel 707c and the feeding gear 606, and is used for emergency braking of the continuous production molding device of the zipper teeth B01, so as to avoid occurrence of safety accidents;

alignment members 605 which are symmetrically distributed left and right are arranged on two sides of the conveying track of the dental floss B00, the alignment members 605 are abutted against two sides of the dental floss B00, and the limiting of the alignment members 605 is used for adjusting the directional deviation of the conveying track of the dental floss B00;

in order to ensure continuous production and molding of the zipper teeth B01, a single main shaft 704 is further provided to be connected with a motor, and is used for synchronously providing power for blanking movements of the dragging wheel 703c, the feeding wheel 707c and the upper die, so that simultaneous operations of cloth tape leading-in/leading-out, conveying of the zipper teeth B00 and blanking molding of the zipper teeth B01 are realized, the speed is high, the synchronism is high, and continuous uninterrupted processing and molding of the zipper teeth B01 are ensured;

specifically, the alignment component 605 comprises an alignment block and an alignment wheel, the alignment wheel is in threaded connection with the processing platform 706, the alignment wheel is rotated to push the alignment block, the abutment on two sides of the dental floss B00 is realized, the offset track of the dental floss B00 is limited, and the purpose of stable conveying is achieved.

In this embodiment, the upper mold is further provided with a guide assembly 610, the guide assembly 610 includes an upper guide holder 610a, a lower guide holder 610c, and a plurality of guide shafts 610b connecting the upper and lower guide holders 610c,

the upper guide seat 610a is fixedly connected with the tool holder 608, the lower die 602 is correspondingly provided with through holes for the guide shafts 610b of the upper die to pass through, and the lower guide seat 610c is hinged with the connecting sleeve 705 b;

during blanking, the die eccentric wheel 705a rotates to drive the guide assembly 610 to reciprocate up and down, and the synchronous linkage cutting tool completes downward blanking and upward resetting;

in order to ensure the blanking stability of the upper die, a guide assembly 610 is further provided, specifically, a plurality of guide shafts 610b form sliding fit with the through holes, so as to provide guiding positioning for the cutting action of the upper die and ensure the continuous operation and reliability of the equipment.

In this embodiment, the processing platform 706 is further provided with a tape seat 709, the tape of the fastener element B01 to be pressed is guided through the tape seat 709, and is guided to the upper mold and the lower mold 602, and under the pressing action of the convergence hammer 601, after the fastener element B01 is sequentially installed on the tape according to a certain rule, the tape is pulled by the pulling wheel 703c, so as to complete material collection.

Through the technical scheme, in specific application, the continuous production molding equipment of the zipper teeth starts a power supply, a motor (not labeled in the figure) drives the belt pulley 702 to enable the main shaft 704 to rotate, a single main shaft 704 is arranged to be connected with the motor, and power is synchronously provided for the dragging wheel 703c, the feeding wheel 707c and the blanking movement of an upper die, so that the simultaneous operation of cloth belt leading-in/leading-out, the conveying of the dental floss B00 and the blanking molding of the zipper teeth B01 is realized, and the continuous uninterrupted processing molding of the zipper teeth B01 is ensured;

an extended dental floss B00 is arranged on a lower die 602 corresponding to the cutting tool, a feeding wheel 707c drives a feeding gear 606, the dental floss B00 is operated in an intermittent progressive mode under the action of the feeding gear 606, the cutting tool is pressurized downwards, a meshing part of a zipper tooth B01 is formed through a punch head 604 of a male die/a die, a punching surface 2 of the cutting tool acts on the dental floss B00, tooth-shaped knife edges 21 which are symmetrical on the left side and the right side of the punching surface 2 respectively carry out trimming treatment on flat dental floss B00, and cut dental floss B00 residues are discharged through a stripping die 603;

the optimized tooth-shaped knife edge 21 ensures that the dental floss B00 is less in punching consumable material, and the production cost of the zipper teeth B01 is greatly reduced;

meanwhile, in the trimming process, the arc-shaped knife edge 22 of the punching surface 2 cuts the dental floss B00, and the optimized zipper teeth B01 punched by the arc-shaped knife edge 22 have stronger biting force on a cloth belt, so that the zipper teeth are stably mounted on the zipper cloth belt;

the cut-off and separated zipper teeth B01 move upwards under the driving action of the cutting tool and enter the concave cavity 4 of the cutting tool, the legs of the zipper teeth B01 are gathered and meshed on a cloth belt under the parallel action of the convergence hammer 601, and the cloth belt automatically breaks away from the cutting tool under the traction action of the dragging wheel 703c, so that the material collection of the zipper cloth belt is completed.

Example 2

As shown in fig. 1 to 4 and fig. 11 to 15, in one embodiment of the present invention, the main technical solution of the present embodiment and embodiment 1, which are not explained in the present embodiment, adopt the explanation in embodiment 1, and are not described herein. This embodiment differs from embodiment 1 in that:

the cutting tool is a combined tool and comprises a left tool unit 11, a right tool unit 12 and an alloy sheet 14, wherein the left tool unit 11 is fixedly connected with the right tool unit 12 to form a tool body A00 in a combined mode, the alloy sheet 14 is arranged at the lower part of the tool body A00 and is in buckling connection with the tool body A00, and the lower end face of the alloy sheet 14 forms a punching face 2; the thickness of the alloy sheet 14 is 1 mm-3 mm; in the present embodiment, the thickness of the alloy sheet 14 is preferably 1.5mm;

it should be noted that, in the present embodiment, the punching surface 2 of the cutting tool has a certain service life, if the punching surface 2 is worn too much, in order to ensure the production precision of the fastener element B01, the punching surface 2 needs to be reprocessed, and the end extending from the cavity 4 of the tool needs to be cut off and milled again;

furthermore, the cutting tool is set to be a combined tool, specifically, the lower end face of the alloy sheet 14 is set to form the punching face 2, and if the cutting tool is worn too much, only the alloy sheet 14 needs to be replaced, so that the service life of the cutting tool is greatly prolonged.

In this embodiment, the front guide posts 31 include a left front guide post 31 and a right front guide post 31, the rear guide posts 32 include a left rear guide post 32 and a right rear guide post 32,

the left cutter unit 11 is fixedly connected with the left front guide post 31 and the left rear guide post 32, and a plurality of left clamping positions 11a are arranged at the connection part; the right cutter unit 12 is fixedly connected with the right front guide post 31 and the right rear guide post 32, and a plurality of right clamping positions 12a are arranged at the connection part; left and right fasteners 23 and 24 corresponding to the left and right clamping positions 11a and 12a are arranged on the left and right sides of the alloy sheet 14;

it should be noted that the invention adopts a split knife set structure, and by arranging the independent punching alloy sheet 14, the worn alloy sheet 14 is convenient to be replaced, and the actual service life of the cutting knife is prolonged; specifically, when the left cutter unit 11 and the right cutter unit 12 are spliced and combined, the left clamping position 11a and the right clamping position 12a are quickly buckled with the left fastener 23 and the right fastener 24 on the alloy sheet 14, so that the alloy sheet 14 of the cutting cutter is convenient to disassemble and assemble.

Through the technical scheme, in specific application, the continuous production molding equipment for the zipper teeth adopts the combined cutting tool, which comprises the left cutter unit 11, the right cutter unit 12 and the alloy sheet 14, wherein when the left cutter unit 11, the alloy sheet 14 and the right cutter unit 12 are assembled and spliced from left to right, the alloy sheet 14 and the cutter body A00 form buckling connection, and then are connected and fastened by the penetrating screw 13;

an extended dental floss B00 is arranged on the lower die 602 corresponding to the cutting tool, the dental floss B00 is intermittently operated progressively under the action of the feeding gear 606, the cutting tool is pressurized downwards, the alloy sheet 14 of the cutting tool acts on the dental floss B00, the left side and the right side of the alloy sheet 14 are provided with symmetrical tooth-shaped knife edges 21 to respectively carry out trimming treatment on the flat dental floss B00, and the optimized tooth-shaped knife edges 21 enable the dental floss B00 to have less punching consumable materials, so that the production cost of the zipper teeth B01 is greatly reduced;

meanwhile, in the trimming process, the arc-shaped knife edge 22 of the alloy sheet 14 cuts the dental floss B00, and the optimized zipper teeth B01 punched by the arc-shaped knife edge 22 have stronger biting force on a cloth belt, so that the zipper teeth B01 are kept in a stable installation state on the cloth belt;

the cut-off and separated zipper teeth B01 move upwards under the driving action of a cutting tool and enter a concave cavity 4 of the cutting tool, the legs of the zipper teeth B01 are gathered and meshed on a cloth belt under the parallel action of a convergence hammer 601, and the cloth belt automatically breaks away from the cutting tool under the traction action of a dragging wheel 703c to finish the material collection of the zipper cloth belt;

after the alloy sheet 14 is worn and worn for multiple times, the alloy sheet 14 needs to be replaced, specifically, the screw 13 is dismounted firstly, the left cutter unit 11 and the right cutter unit 12 are separated to two sides respectively, the alloy sheet 14 falls off, the disassembly of the alloy sheet 14 can be completed, the independent punching alloy sheet 14 is arranged through the split type cutter set structure, the worn alloy sheet 14 is convenient to replace, and the practical service life of the cutting cutter is prolonged.

Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.

Claims

1. The utility model provides a continuous production former of zip fastener tooth for with the zip fastener tooth follow blanking shaping and pressfitting on the strap on the dental floss, including the frame, and processing platform, stamping device and the conveying structure of setting in the frame, its characterized in that:

the feeding eccentric wheel is provided with a feeding connecting rod, the feeding connecting rod is connected to the feeding wheel, and the feeding wheel is driven by the rotation of the feeding eccentric wheel to convey dental floss for blanking and forming the zipper teeth for the stamping device;

the cutting tool is integrally formed, two sides of the tool body are respectively provided with a side cutting groove which is bilaterally symmetrical, and the front surface of the tool body is provided with a cutting groove; the punching surface is intersected with the trimming groove to form the tooth-shaped knife edge, and is intersected with the cutting groove to form the arc-shaped knife edge;

or, the cutting tool is a combined tool, and comprises a left tool unit, a right tool unit and an alloy sheet, wherein the left tool unit is fixedly connected with the right tool unit to form the tool body in a combined mode, the alloy sheet is arranged at the lower part of the tool body and is buckled with the tool body, and the lower end face of the alloy sheet forms the punching face.

2. The continuous production molding apparatus for fastener elements according to claim 1, wherein when the cutting blade is integrally molded, a distance between the cavity and the die-cut surface in the line profile extending direction is in a range of 1mm to 3mm.

3. The fastener element continuous production molding apparatus according to claim 1, wherein when the cutting tool is a combination tool, the thickness of the alloy sheet is 1mm to 3mm.

4. A fastener element continuous production molding apparatus according to claim 2 or 3, wherein the tooth edge is provided with a first concave portion, a first convex portion and a second concave portion, the outer contour of the first convex portion is in a circular arc transition, the contour of the first concave portion forms an included angle α, and the contour of the second concave portion forms an included angle β,0 ° < β < α < 180 °.

5. The fastener element continuous production molding apparatus according to claim 4, wherein the first concave portion includes a first contour line and a second contour line, the second contour line forms an angle γ with a symmetry plane of the tooth edge, and γ is 32 ° or more and 38 ° or less.

6. The continuous production molding apparatus for fastener elements according to claim 5, wherein the arc-shaped blade is bell-shaped as a whole, and includes a head portion and a tail portion which are arranged in bilateral symmetry, and second protruding portions are provided at the junctions of the head portion and the tail portion, and a distance between every two second protruding portions is smaller than a width dimension of the head portion of the arc-shaped blade.

7. The fastener element continuous production molding apparatus according to claim 6, wherein a cross-sectional notch shape of the cavity along the linear material extending direction is trapezoid-like;

the extension length of the concave cavity on the wire section bar ranges from 4mm to 15mm.

8. The continuous production molding apparatus for fastener elements according to claim 7, wherein the guide post includes a front guide post and a rear guide post which are bilaterally symmetrical, the cross section of the front guide post along the extension direction of the profile is larger than the cross section of the rear guide post along the extension direction of the profile, and the distal end of the guide post is further provided with a chamfer.

9. The continuous production molding apparatus of fastener elements according to claim 8, wherein the punching device further comprises a feeding assembly, the feeding assembly comprises a feeding shaft, a feeding gear and an alignment member, the feeding gear is provided with the dental floss, the feeding gear is in driving connection with the feeding wheel through the feeding shaft, and the feeding wheel supplies power for conveying the dental floss;

the two sides of the dental floss conveying track are also provided with aligning components which are distributed in a bilateral symmetry mode, the aligning components are abutted to the two sides of the dental floss, and the direction deviation of the dental floss conveying track is regulated through the limit of the aligning components.

10. The continuous production molding apparatus for fastener elements according to claim 9, wherein the upper die is further provided with a guide assembly including an upper guide holder, a lower guide holder, and a plurality of guide shafts connecting the upper and lower guide holders,

during blanking, the die eccentric wheel rotates to drive the guide assembly to reciprocate up and down, and the synchronous linkage cutting tool completes downward blanking and upward resetting.