CN112720698A - Blanking and air suction combined waste discharging knife - Google Patents
Blanking and air suction combined waste discharging knife Download PDFInfo
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- CN112720698A CN112720698A CN202011601993.XA CN202011601993A CN112720698A CN 112720698 A CN112720698 A CN 112720698A CN 202011601993 A CN202011601993 A CN 202011601993A CN 112720698 A CN112720698 A CN 112720698A
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- blanking
- cutter
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- air suction
- suction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F2001/4472—Cutting edge section features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F2001/4481—Cutters therefor; Dies therefor having special lateral or edge outlines or special surface shapes, e.g. apertures
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- Life Sciences & Earth Sciences (AREA)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Cutting Devices (AREA)
Abstract
The invention relates to a blanking and air suction combined waste discharging knife which mainly comprises a blanking air suction knife body, a blanking air suction large-diameter shaft head and a gear, wherein the gear is installed at one end of the blanking air suction knife body, and the blanking air suction large-diameter shaft head is connected with the other end of the blanking air suction knife body in a flange mode; the blanking air suction cutter body consists of a cutter shaft, a cutter body, a cutter cavity, a blanking hole, an air quantity adjusting hole group and a vent hole; the blanking and air suction large-caliber shaft head is internally provided with a waste discharge channel, and the waste discharge channel is coaxially communicated with the cutter cavity. The blanking and air suction combined waste discharging knife has the advantages of scientific and reasonable design, good waste discharging effect, improvement on production efficiency, capability of die cutting small holes, prolonged service life of the knife body, easiness in cleaning of the knife cavity and easiness in implementation, and has higher innovativeness.
Description
Technical Field
The invention belongs to the field of die cutting machines, and relates to a waste discharge knife, in particular to a blanking and air suction combined waste discharge knife.
Background
At present, the die-cutting piece needs to discharge waste materials in the processing process due to the nature of the materials and the different matching of various auxiliary materials. The existing waste discharge method has the following disadvantages: 1. the existing technical scheme generally adopts a mode that a needle-shaped cylindrical thimble is added in a small hole of a cutter body, the process is generally suitable for common equipment, and a plurality of problems exist when satellite equipment is used, such as: the satellite type equipment shaft body is large, waste materials cannot be ejected to the main shaft while cutting is completed, a delayed waste discharge process is adopted, but the waste materials are adhered due to the fact that glue exists after cutting, the position of the waste materials is changed due to the fact that glue does not exist, waste discharge of products is poor, once the waste discharge of the products is poor, the whole piece of produced pieces is waste products, and the yield of the whole product is low; 2. the cutter cavity waste discharge process of the prior art scheme has many defects, and the process is only the combination of a simple cutter cavity and a common small hole, so that not only waste cannot be effectively discharged, but also a lot of difficulties such as cutter cavity blockage, small hole blockage and the like can be brought in the production process, the problems can directly cause the increase of the reject ratio of products, and the production efficiency can be influenced, and the process specifically comprises the following steps: the existing waste discharge knife can not die cut small holes smaller than 1.0mm, such as waste discharge holes with the diameter of 0.8mm and 0.6 mm; clogging of small holes can lead to tipping problems; the problem of unsmooth waste accumulation and discharge can be caused by too deep small holes; the problem of small suction pressure caused by the excessively small waste discharge channel; the problem of unsmooth and choke air flow and the problem of instant air flow enhancement and cleaning of the inner wall of the cutter cavity can be caused by few cutter-shaped holes.
Disclosure of Invention
The invention aims to provide the blanking and air suction combined waste discharging knife which is scientific and reasonable in structural design, good in waste discharging effect, capable of reducing the rejection rate, improving the production efficiency, capable of die-cutting small holes, prolonging the service life of a knife body, easy to clean a knife cavity and easy to realize.
The technical problem to be solved by the invention is realized by the following technical scheme:
the utility model provides a blanking and breathing in combination formula waste discharge sword which characterized in that: the blanking suction cutter mainly comprises a blanking suction cutter body, a blanking suction large-diameter shaft head and a gear, wherein the gear is installed on a cutter shaft at one end of the blanking suction cutter body through a screw, and the blanking suction large-diameter shaft head is connected to the other end of the blanking suction cutter body through a flange; the blanking air suction cutter body comprises a cutter shaft, a cutter body, a cutter cavity, blanking holes, air volume adjusting hole groups and air vents, wherein the cutter shaft is coaxially arranged on one side end surface of the cutter body, the cutter cavity is arranged in the cutter body, the blanking holes are uniformly distributed at intervals on the circumference at two ends of the outer wall of the cutter body, a circle of groove is arranged on the inner wall of the cutter cavity corresponding to the blanking holes at two sides, the air volume adjusting hole groups formed on the cutter body are arranged on the outer sides of the blanking holes at two ends, the end surface of the cutter body at one side of the cutter shaft is provided with the air vents communicated with the inside of the cutter cavity, and the air vents are provided with air vents; the blanking and air suction large-caliber shaft head is internally provided with a waste discharge channel, and the waste discharge channel is coaxially communicated with the cutter cavity.
Moreover, the blanking hole is of an inverted cone structure.
And the air quantity adjusting hole group consists of a plurality of air quantity adjusting holes with different sizes and apertures, the air quantity adjusting holes are uniformly distributed on the cutter body at intervals in the circumferential direction and are communicated with the inside of the cutter cavity, and hole plugs are assembled on the air quantity adjusting holes.
The invention has the advantages and beneficial effects that:
1. the blanking and air suction combined waste discharge knife adopts a needle-free waste discharge hole design, and a thimble type knife is generally adopted before the technical scheme is not adopted, so that the thimble waste discharge knife has many problems, one of which has the aperture not less than 1.0mm, and no proper thimble can be placed into the hole after the thimble is small, thereby limiting the product; secondly, when placing the thimble and getting rid of the waste material in the aperture of some a bit bigger, because the built-in glue stick of thimble, hardness is high, and the resilience is relatively poor, when blade and material contact, because thimble interference is installed in the sword intracavity, receives extruded material can produce the deformation of different degrees, leads to the size bad, the outward appearance is unfavorable etc. the condition. This waste discharge cutter is because the cutter intracavity is empty, and the inside and outside angle of cutting edge all can carry out the size of cutting the ideal according to theoretical design value, can enough guarantee the size in, the outward appearance does not receive any extrusion of external factor to there is not any deformation problem, has promoted product appearance simultaneously.
2. This blanking combination formula of breathing in waste discharge sword has adopted the design of back taper blanking hole, before not taking this technical scheme, ordinary sword chamber blanking has just been simple to beat a vertically round hole in that the blade is inside, this kind of simple punching is when the in-service use, very short time will appear because the waste material piles up at sword chamber blade position, lead to the blade to be extrudeed by the waste material and the spalling phenomenon that produces, the cutter directly damages, can not continue production, directly cause the mould loss and production task delay scheduling problem. After adopting this technical scheme, the blanking hole forms an inverted cone, handles the back through this kind of technology, and the waste material after the cross cutting does not have the space that the card went on after getting into the blade in blanking hole, directly drops to the sword intracavity by the bell mouth to realize that the blade does not have the waste material to pile up, the cutting edge can not receive any extruded purpose, guarantees the life of cutter when guaranteeing to waste the unobstructed.
3. This blanking combination formula of breathing in waste discharge sword has adopted the design of sword intracavity wall blade bottom recess, before not taking this technical scheme, because the cutter degree of depth of bell mouth is limited, leads to can not running through the wall thickness completely to step phenomenon appears, in case step phenomenon appears after, the waste material has partly remaining step position when the process, and when operating time changes, the waste material that this step position was deposited can be more and more right, thereby takes place the hole and blocks up. After the technical scheme is adopted, the problems of step residual waste and hole blockage are solved, the performance is improved, the service life of the cutter is ensured, and the product quality is improved.
4. The blanking and air suction combined waste discharge knife adopts the design that a waste discharge channel is arranged at a large-aperture shaft head, before the technical scheme is not adopted, the diameter of the general cutter shaft head is only 25-35mm, the maximum inner hole can only be 25mm in diameter, so that the air quantity is insufficient due to the narrow channel, the waste can not be effectively sucked out, meanwhile, the air pump is heated and even damaged due to the air-out of the air suction pump, the outer diameter of the cutter shaft head is adjusted to 40mm under the theoretical condition by the design, the inner diameter of the cutter shaft is adjusted to 33mm, the diameter of the cutter shaft is adjusted to 70 teeth at the lowest, the design scheme is verified, the effective sizes of the cutter shaft are respectively exerted to the maximum available space, the problem that the product is not completely discharged due to insufficient ventilation is solved, and the resistance of the air pump is effectively relieved, so that the product quality is improved, and the risk of damage of the air pump is reduced.
5. This blanking suction combined type waste discharging knife adopts the design of tolerance regulation punch combination and the design of tolerance regulation holes of each big or small aperture difference in the tolerance regulation punch combination, before not taking this scheme, the suction pressure and the pipeline of the transmission of aspirator pump are rated, when the cutter body hole site is less, the proportion of ventilating this moment and aspirator pump can not form one to one, the aspirator pump operation can appear the phenomenon of breathing out of air blockage this moment, long-time operation can lead to the burning out of air pump inner assembly. After having adopted this design, according to the inside hole of drawing of cutter itself the size of wasting discharge how much judge the air current and whether block, if the phenomenon of blocking appears, can adjust the punch combination through the tolerance and contrast and adjust, the model of design hole is not of uniform size, can guarantee to adjust the suction that does not influence the air pump promptly, can not let the obstructed effect of air pump take place again, the hole that does not take and fills up stifled form and open or close to the realization carries out the purpose of adjusting at any time according to actual conditions. The effective air flow is exhausted, meanwhile, components in the air pump are protected, and the service life of the air pump is prolonged.
6. According to the blanking and air suction combined waste discharge knife, the design of the air nozzle is adopted, and before the scheme is not adopted, on one hand, a strong air flow is generated at the moment when the air suction pump is started, and the air flow is not released in time, so that the air pump is instantly suppressed, and meanwhile, strong suction is generated on the surface of a product to cause local deformation of the product sheet; on the other hand, after the equipment runs for a long time, some waste materials with residual glue or other waste materials which are not easy to discharge are adhered to the inner wall of the cutter cavity, so that the whole waste discharge effect is reduced and even defective products are generated; before the scheme is not adopted, the cutter needs to be detached, and then the residual waste on the inner wall is manually removed after the cutter is detached, so that time and labor are wasted. After adopting this scheme, need not to pull down the cutter, only need be connected to high-pressurepipe in the department of vent when shutting down, open high-pressurepipe and aspirator pump simultaneously, after the operation moment, the waste material can all be by the clean up, labour saving and time saving is remained to the sword intracavity wall. According to the scheme, the local damage of the appearance of a product can be improved, the inner wall of the cutter cavity can be effectively cleaned, the quality is improved, and meanwhile the working efficiency is improved.
7. The blanking and air suction combined waste discharging knife has the advantages of scientific and reasonable design, good waste discharging effect, improvement on production efficiency, capability of die cutting small holes, prolonged service life of the knife body, easiness in cleaning of the knife cavity and easiness in implementation, and has higher innovativeness.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is an enlarged view of section I of FIG. 3 (illustrating the inverted cone structure);
FIG. 5 is a left side view of the present invention;
fig. 6 is a schematic view of the working state of the present invention.
Description of reference numerals:
1-cutter shaft, 2-gear, 3-air flow adjusting hole group, 4-blanking hole, 5-blanking air suction cutter body, 6-blanking air suction large-caliber shaft head, 7-screw, 8-vent nozzle, 9-hole plug, 10-vent hole, 11-cutter cavity, 12-air flow adjusting hole, 13-waste discharge channel, 14-groove, 15-inverted cone structure, 16-vent nozzle avoiding hole, A-waste discharge cutter, B-material needing die cutting, C-material after die cutting and D-main shaft of die cutting machine.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
A blanking and air suction combined waste discharge knife is characterized in that: the blanking suction cutter mainly comprises a blanking suction cutter body 5, a blanking suction large-diameter shaft head 6 and a gear 2, wherein the gear is installed on a cutter shaft 1 at one end of the blanking suction cutter body through a screw 7, and the blanking suction large-diameter shaft head is connected to the other end of the blanking suction cutter body in a flange mode; the blanking air suction cutter body comprises a cutter shaft, a cutter body, a cutter cavity 11, blanking holes 4, air volume adjusting hole groups 3 and air vents 10, wherein the cutter shaft is coaxially arranged on one side end face of the cutter body, the cutter cavity is arranged in the cutter body, blanking holes which are uniformly distributed at intervals are arranged at the two ends of the outer wall of the cutter body, a circle of groove 14 is arranged at the inner wall of the cutter cavity corresponding to the blanking holes at the two sides, the air volume adjusting hole groups which are arranged on the cutter body are arranged at the outer sides of the blanking holes at the two ends, the air vents which are communicated with the interior of the cutter cavity are arranged on the end face of the cutter body at one side of the cutter shaft, and air nozzles 8 are arranged at the air vents; the blanking and air suction large-caliber shaft head is internally provided with a waste discharge channel 13 which is coaxially communicated with the cutter cavity.
The gear is provided with a venting nozzle avoiding hole 16.
The blanking hole is in an inverted cone structure 15.
The air quantity adjusting hole group is composed of a plurality of air quantity adjusting holes 12 with different sizes and apertures, the air quantity adjusting holes are uniformly distributed on the cutter body at intervals and communicated with the inside of the cutter cavity, and hole plugs 9 are assembled on the air quantity adjusting holes.
The ventilating nozzle is a product with the model number of G1/8 produced by Zhejiang handsome company.
The inverted cone-shaped blanking hole is used for enabling the cut waste material part to fall into the cutter cavity from the conical hole;
the bottom groove of the cutting edge on the inner wall of the cutter cavity is used for reducing the depth of a blanking hole and reducing the waste discharge resistance;
the vent hole is used for installing a vent nozzle to remove residual waste materials, and the air is automatically discharged when the air pressure is too high;
the air quantity adjusting hole group with the combined aperture size is used for adjusting air quantity according to the number of waste discharge holes of the cutter body (matched with negative deflection of the gear);
the knife cavity is used for temporarily storing waste materials;
the waste discharge channel at the large-diameter shaft head is used for conveying waste materials to the suction pump through the waste discharge channel;
the venting nozzle avoiding hole at the gear is used for avoiding the exposed part of the venting nozzle.
During installation, firstly, the waste discharge cutter A is installed according to the drawing schematically; then compounding the material B to be die-cut on the surface of a main shaft D of the die-cutting machine; then, installing the waste discharge cutter A above the material according to the process requirement, and performing pressure die cutting; the material after die cutting is shown as C, the perforated material after waste discharge is die-cut; the waste material enters a cutter cavity to wait for the discharge of the next process; and finishing the installation and debugging.
The working principle is as follows:
1. the waste discharge cutter adopts a structure that the cutting edge of the cutter is arranged into an inverted cone-shaped blanking hole, waste can be discharged from the cutter cavity after being subjected to pressure die cutting, and the waste can smoothly fall without overflowing;
2. due to the adoption of the design of the groove at the bottom of the cutting edge, the wall thickness is locally reduced, and waste discharge is smoother;
3. after falling into the cutter cavity, the waste is discharged through a waste discharge channel, and the waste is collected by an air suction pump;
4. because the product figures required to be die-cut by the cutter at each time are inconsistent, more or less holes are formed in the conductor, the air suction system of the air suction pump can generate strong resistance when waste discharge holes are few, and the air pump can be burnt out due to overhigh resistance caused by long-time operation, so that the cutter body is provided with the large and small combined air quantity adjusting holes, the hole patterns on the four positions of one side are different in size, and the two sides are eight positions. If the number of waste discharge holes caused by the patterns of the cutter body is small (for example, only a few small holes), the air inflow can be adjusted in a matching manner according to the number of the actual waste discharge holes of the cutter body, so that smooth air flow can be realized, uniform air flow can be ensured, the resistance of the air pump is reduced, and the pump body is not damaged after long-time operation;
5. the air pump is characterized in that the cutter body is provided with an air vent, and the air vent is internally provided with an air nozzle in a threaded manner, so that the function of the air nozzle is one, when a strong air suction pressure is applied to the cutter body at the moment of starting the air suction pump, a spring valve arranged in the air nozzle can be automatically opened, the ventilation air flow can be increased at the moment, the air pump is protected, and the surface of a product sucked by the local part of the product due to the increase of resistance cannot be deformed; the waste material of various shapes that its function effect is two, after long-time operation, drops to the cutter intracavity to and have the waste material that contains some cull to adsorb on the cutter intracavity inner wall, lead to its cutter body air permeability to descend, even the condition of jam. At the moment, the air nozzle is connected with the high-pressure air blowing pipe, the air blowing pipe is started, the air suction pump is started at the same time, and accumulated residual waste materials adhered to the inner wall of the cutter cavity are instantly blown off and then pumped to the waste material storage center of the pump body by the air suction pump;
when the whole operation process is completed, the real-time cleaning state of the inner wall of the cutter cavity is ensured, so that the waste suction function of the cutter body can not be reduced due to the reduction of the waste discharge capacity caused by long running time.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (3)
1. The utility model provides a blanking and breathing in combination formula waste discharge sword which characterized in that: the blanking suction cutter mainly comprises a blanking suction cutter body, a blanking suction large-diameter shaft head and a gear, wherein the gear is installed on a cutter shaft at one end of the blanking suction cutter body through a screw, and the blanking suction large-diameter shaft head is connected to the other end of the blanking suction cutter body through a flange; the blanking air suction cutter body comprises a cutter shaft, a cutter body, a cutter cavity, blanking holes, air volume adjusting hole groups and air vents, wherein the cutter shaft is coaxially arranged on one side end surface of the cutter body, the cutter cavity is arranged in the cutter body, the blanking holes are uniformly distributed at intervals on the circumference at two ends of the outer wall of the cutter body, a circle of groove is arranged on the inner wall of the cutter cavity corresponding to the blanking holes at two sides, the air volume adjusting hole groups formed on the cutter body are arranged on the outer sides of the blanking holes at two ends, the end surface of the cutter body at one side of the cutter shaft is provided with the air vents communicated with the inside of the cutter cavity, and the air vents are provided with air vents; the blanking and air suction large-caliber shaft head is internally provided with a waste discharge channel, and the waste discharge channel is coaxially communicated with the cutter cavity.
2. The blanking and air suction combined waste discharging knife as claimed in claim 1, wherein: the blanking hole is of an inverted cone structure.
3. The blanking and air suction combined waste discharging knife as claimed in claim 1, wherein: the air volume adjusting hole group is composed of a plurality of air volume adjusting holes with different sizes and apertures, the air volume adjusting holes are uniformly distributed on the cutter body at intervals and communicated with the inside of the cutter cavity, and hole plugs are assembled on the air volume adjusting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011601993.XA CN112720698A (en) | 2020-12-29 | 2020-12-29 | Blanking and air suction combined waste discharging knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011601993.XA CN112720698A (en) | 2020-12-29 | 2020-12-29 | Blanking and air suction combined waste discharging knife |
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| CN112720698A true CN112720698A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011601993.XA Pending CN112720698A (en) | 2020-12-29 | 2020-12-29 | Blanking and air suction combined waste discharging knife |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334477A (en) * | 2021-07-20 | 2021-09-03 | 苏州利乐电子科技有限公司 | Circular knife machine convenient to clear up waste material automatically |
-
2020
- 2020-12-29 CN CN202011601993.XA patent/CN112720698A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334477A (en) * | 2021-07-20 | 2021-09-03 | 苏州利乐电子科技有限公司 | Circular knife machine convenient to clear up waste material automatically |
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