CN117265915A - Cold stamping forming aluminum production process - Google Patents
Cold stamping forming aluminum production process Download PDFInfo
- Publication number
- CN117265915A CN117265915A CN202311367517.XA CN202311367517A CN117265915A CN 117265915 A CN117265915 A CN 117265915A CN 202311367517 A CN202311367517 A CN 202311367517A CN 117265915 A CN117265915 A CN 117265915A
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- Prior art keywords
- aluminum foil
- die
- cavity
- paper
- pressure
- Prior art date
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- Granted
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 106
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000011888 foil Substances 0.000 claims abstract description 87
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims abstract description 10
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 9
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000000084 colloidal system Substances 0.000 claims abstract description 4
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000010893 paper waste Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 38
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000005030 aluminium foil Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
- D21B1/08—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Making Paper Articles (AREA)
Abstract
The invention relates to a cold stamping forming aluminum production process, and belongs to the technical field of cold stamping forming. Comprising the following steps: s1, crushing waste paper into powder to obtain paper powder; adding paper powder into the antibacterial color-changing colloid, mixing and stirring to obtain color-changing gelatinized paper pulp; s2, weighing a certain amount of polyethylene oxide, melting, spraying the polyethylene oxide on the surface of the aluminum foil layer while the polyethylene oxide is hot, then placing the sprayed aluminum foil layer at room temperature for airing, and forming a layer of isolation layer on the surface of the aluminum foil layer; s3, uniformly coating the color-changing gelatinized paper pulp on the surface of the isolation layer, and compounding a layer of antibacterial color-changing paper base layer on the surface of the isolation layer to obtain aluminum foil paper; and S4, cold stamping is carried out on the aluminum foil paper through cold stamping equipment, and when the aluminum foil paper is subjected to demoulding, air is introduced between the male die and the aluminum foil paper and between the female die and the aluminum foil paper, so that the aluminum foil paper is separated from the male die and the female die respectively, and an aluminum foil paper packaging finished product S5 is obtained, and is inspected and stored. The invention solves the problem of low qualification rate of finished products in the prior art.
Description
Technical Field
The invention relates to a cold stamping forming aluminum production process, and belongs to the technical field of cold stamping forming.
Background
With the increasing application field and demand of aluminum foils, the domestic aluminum foil industry is developing continuously, especially the flexible packaging aluminum foil industry is developing rapidly, the aluminum foil is dampproof, airtight and shading, the aluminum foil is involved in many different technical fields including medical products, cigarettes, beverages, foods and other industries due to its excellent quality.
Through retrieving, the chinese patent publication No. CN219337944U discloses an aluminum foil stamping, cutting and forming die structure, which is technically characterized in that: the die comprises a lower die forming block, a lower die cutter seat arranged at the top of the lower die forming block, an upper die plate, a material pressing core which is elastically arranged in the upper die plate and is correspondingly matched with the lower die forming block, and an upper die punch which is arranged at the bottom of the upper die plate and is in dislocation moving fit with the lower die cutter seat; the inner wall of the lower die cutter holder is in splicing transitional connection with the inner wall of the arc-shaped cavity, the outer side edge of the lower die cutter holder is in a corrugated continuous structure along the length direction of the lower die cutter holder, and the inner side of the upper die punch is correspondingly arranged along the profile modeling of the corrugated continuous structure.
According to the scheme, the pressing core arranged at the bottom of the upper template is matched with the floating block through elasticity, so that demolding of an aluminum foil product is facilitated during mold opening, but when the aluminum foil paper is ejected out through the floating block, the aluminum foil paper is thinner, when the floating block applies force to the aluminum foil paper, the aluminum foil paper is unevenly stressed, and if the pressure of the floating block is too large, the aluminum foil paper is easily subjected to secondary deformation, wrinkling and even tearing, so that the qualified rate of a finished product is low.
There is therefore a need to propose a new solution to this problem.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the cold stamping forming aluminum production process solves the problem of low qualification rate of finished products in the prior art.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
a cold stamping forming aluminum production process comprises the following steps:
s1, crushing waste paper into powder to obtain paper powder; adding paper powder into the antibacterial color-changing colloid, mixing and stirring to obtain color-changing gelatinized paper pulp;
s2, weighing a certain amount of polyethylene oxide, melting, spraying the polyethylene oxide on the surface of the aluminum foil layer while the polyethylene oxide is hot, then placing the sprayed aluminum foil layer at room temperature for airing, and forming a layer of isolation layer on the surface of the aluminum foil layer;
s3, uniformly coating the color-changing gelatinized paper pulp on the surface of the isolation layer, and compounding a layer of antibacterial color-changing paper base layer on the surface of the isolation layer to obtain aluminum foil paper;
s4, cold stamping is carried out on the aluminum foil paper through cold stamping equipment, wherein the cold stamping equipment comprises a male die and a female die, when the aluminum foil paper is subjected to demoulding, air is introduced between the male die and the aluminum foil paper and between the female die and the aluminum foil paper, and the aluminum foil paper is separated from the male die and the female die respectively through the air, so that an aluminum foil paper packaging finished product is obtained;
s5, checking surface flaws of aluminum foil paper packaging finished products, and warehousing qualified products.
The invention is further provided with: the cold stamping equipment comprises a male die, a female die arranged below the male die and a driving piece connected between the male die and the female die, wherein the male die and the female die are matched to form a cavity, a first pressure cavity is formed in the male die and the female die, a plurality of air holes communicated with the cavity are formed in the inner wall of the first pressure cavity, plugging pieces are arranged on the air holes, and a control mechanism for controlling the plugging pieces to be closed or opened is arranged on the male die and the female die.
The invention is further provided with: the die comprises a die cavity, a plurality of annular inserting grooves are formed in the periphery of the die cavity, an annular sealing plate which is arranged in an annular mode around the periphery of the die cavity is arranged on the bottom surface of the die cavity, annular inserting grooves which are matched with the annular sealing plate are formed in the bottom surface of the die cavity, the annular sealing plate is inserted in the annular inserting grooves in a sliding mode, a plurality of reset springs are arranged between the top surface of the annular sealing plate and the top surface of the annular inserting grooves, when the bottom end of the annular sealing plate is abutted to the top surface of the die cavity, an air cavity is formed in the periphery of the upper portion of the die cavity, an air inlet channel which is communicated with the first pressure cavity is formed in the portion of the bottom surface of the die cavity, and one-way valves are arranged in the air inlet channel and used for air inlet towards the inner portion of the first pressure cavity.
The invention is further provided with: the end face of the bottom of the annular sealing plate is provided with an annular blade which is arranged around the annular sealing plate in the circumferential direction, and the top surface of the female die is provided with an annular groove matched with the annular blade.
The invention is further provided with: the control mechanism comprises a second pressure cavity arranged in the male die and the female die, a pressure regulating pipe communicated with the second pressure cavity and respectively extending to the outer portion of the male die or the female die, a three-position three-way electromagnetic valve is connected to the pressure regulating pipe, a pressurizing pipe and a depressurizing pipe are respectively connected to the three-position three-way electromagnetic valve, the plugging piece comprises a connecting hole communicated between the first pressure cavity and the second pressure cavity, a piston column in the connecting hole in a sliding and inserting mode, a sealing block fixedly connected with one end of the piston column in the first pressure cavity, a limiting block fixedly connected with one end of the piston column in the second pressure cavity, and the sealing block is in sliding and inserting mode in the air hole to close the air hole.
The invention is further provided with: the air hole is in a round table shape, the diameter of one end of the air hole, which is close to the cavity, is smaller than the diameter of the air hole, which is close to the second pressure cavity, and the sealing block is in a round table-shaped structure matched with the air hole.
The invention is further provided with: the inner peripheral wall of the air hole is provided with a plurality of drainage grooves, the drainage grooves penetrate through one end, close to the cavity, of the air hole, the drainage grooves extend along the chord tangent line of the air hole, and the peripheral wall of the sealing block is fixedly connected with a plurality of sealing belts matched with the drainage grooves.
The invention is further provided with: the pressure relief device is characterized in that the pressure relief device is provided with a first pressure cavity, the first pressure cavity is communicated with a pressure relief pipeline extending to the outside of the male die or the outside of the female die, one end of the pressure relief pipeline away from the first pressure cavity is provided with an adjusting piece, the adjusting piece is located in a threaded ring in the pressure relief pipeline, a plurality of supporting rods fixedly connected with the threaded ring and the inner wall of the pressure relief pipeline, a screw thread is connected with an adjusting screw in the threaded ring, the adjusting piece is fixedly connected with an abutting ring of the inner wall of the pressure relief pipeline, the adjusting piece is arranged at the end of the adjusting screw and abuts against the inner wall of the abutting ring, the inner wall of the abutting ring is in a round table shape with gradually increased diameter, the adjusting piece is arranged to be matched with the inner wall of the abutting ring, and one end of the adjusting screw extending out of the pressure relief pipeline is provided with a knob.
The invention is further provided with: the adjusting block is in elastic connection with the adjusting screw, the inserting hole is formed in the end face of the adjusting block, the adjusting screw is slidably inserted into the inserting hole, a supporting spring is arranged between the end of the adjusting screw and the inner wall of the inserting hole, a first limiting ring is fixedly connected to one end, close to an opening, of the inner wall of the inserting hole, and a second limiting ring is fixedly connected to the peripheral wall of one end, located in the inserting hole, of the adjusting screw.
The invention is further provided with: the male die is characterized in that the upper mounting plate is fixedly connected to the peripheral wall of the male die, the lower mounting plate is fixedly connected to the peripheral wall of the female die, and the driving piece comprises a hydraulic cylinder fixedly mounted on the lower mounting plate and a piston rod connected to the upper mounting plate.
The beneficial effects of the invention are as follows:
1. when the aluminum foil paper is recycled, the waste aluminum foil paper is packaged and put into hot water, after soaking for 20-30min, polyethylene oxide is easy to dissolve in the hot water, and polyethylene oxide in the isolation layer is dissolved after soaking in the hot water, so that the aluminum foil layer is separated from the antibacterial color-changing paper base layer, the aluminum foil layer can be recycled continuously, recycling of the aluminum foil layer is realized, the recycling process is simple, and the cost is saved;
2. by adopting cold stamping equipment, when demoulding is carried out after the aluminum foil paper is stamped and formed, gas is respectively sprayed on the male die and the female die, so that the gas is filled between the aluminum foil paper and the male die and between the aluminum foil paper and the female die, the aluminum foil paper adhered to the inner wall of the cavity is separated from the male die and the female die through the gas, in the process, the aluminum foil paper packaging finished product is not easy to tear or deform due to overlarge stress of a certain part due to the fluidity of the gas, the stress of the aluminum foil paper is more uniform, and the yield of the aluminum foil paper packaging finished product is improved;
3. when the male die and the female die are matched by the driving piece, the annular sealing plate which is connected with the male die in a sliding way seals the groove on the female die, an air cavity is formed at the periphery of the male die above the cavity, the air cavity is gradually reduced in the process of gradually matching the male die and the female die, air is pressed into the first pressure cavity through the one-way valve and the air inlet channel, so that the air pressure in the first pressure cavity is far greater than the air pressure in the cavity, at the moment, the three-way valve is controlled to enable the pressurizing pipe to be communicated with the pressure regulating pipe, so that the air pressure in the second pressure cavity is greater than the air pressure in the first pressure cavity, at the moment, under the action of the piston post, the sealing block is abutted against the air hole to enable the air hole to be sealed, and when the male die and the female die are opened, the three-way valve is controlled to enable the pressure reducing pipe to be communicated with the pressure regulating pipe, so that the air pressure in the second pressure cavity is smaller than the air pressure in the first pressure cavity, and the piston drives the sealing block to be far away from the air hole under the action of air pressure difference, so that the air hole is opened, and the air in the first pressure cavity is injected into the air hole to pass through the air hole and the aluminum foil and the paper and the female die, and the aluminum foil are separated from the paper;
4. through arranging the drainage groove on the air hole, when the air in the first pressure cavity flows into the cavity through the air hole, the air hole is in a circular table shape, the drainage groove on the inner side wall of the air hole is in an inclined state relative to the inner side wall of the cavity, and the flowing direction of the air flow is an acute angle with the aluminum foil paper in the cavity under the action of the drainage groove, so that the air flow is not easy to directly blow the aluminum foil paper when flowing towards the inside of the cavity, the air pressure of the aluminum foil paper is reduced, and the possibility of deformation of the aluminum foil paper is reduced;
5. through setting up the pressure release pipeline to set up regulating block and butt ring in the pressure release pipeline, when carrying out cold stamping forming to the aluminium foil paper of different materials, through rotating adjusting screw, make adjusting screw drive the regulating block and support in the inner wall of butt ring, when the atmospheric pressure in the first pressure chamber is greater than the elasticity of supporting spring, the atmospheric pressure pushes away the regulating block, can follow the blowout in the pressure release pipeline, make first pressure chamber can keep invariable pressure, reduce the too big condition to aluminium foil paper pressure when leading to from the gas pocket blowout of atmospheric pressure in the first pressure chamber.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an overall cross-sectional view of the present invention.
Fig. 3 is a partial enlarged view of a portion a in fig. 1.
Fig. 4 is a partial enlarged view of a portion B in fig. 2.
Fig. 5 is a schematic view of the structure of the air hole portion in the present invention.
Fig. 6 is a schematic view of the structure of the block portion in the present invention.
Fig. 7 is a partial enlarged view of a portion C in fig. 2.
In the figure: 1. cold stamping equipment; 2. a male die; 3. a female die; 4. a cavity; 5. an upper mounting plate; 6. a lower mounting plate; 7. a hydraulic cylinder; 8. a first pressure chamber; 9. air holes; 10. an annular sealing plate; 11. an annular insertion groove; 12. a return spring; 13. an air cavity; 14. an air intake passage; 15. a one-way valve; 16. a ring blade; 17. a ring groove; 18. a blocking member; 19. a control mechanism; 20. a second pressure chamber; 21. a pressure regulating tube; 22. a three-position three-way electromagnetic valve; 23. a pressurizing pipe; 24. a pressure reducing tube; 25. a connection hole; 26. a piston column; 27. sealing blocks; 28. a limiting block; 29. drainage grooves; 30. a sealing tape; 31. a pressure relief conduit; 32. an adjusting member; 33. a threaded ring; 34. a support rod; 35. adjusting a screw; 36. an abutment ring; 37. an adjusting block; 38. a knob; 39. a plug hole; 40. a support spring; 41. a first stop collar; 42. and a second limiting ring.
Detailed Description
The invention will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-7, a cold-stamping aluminum production process provides a cold-stamping aluminum production process, which solves the problem of low yield of finished products in the prior art.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
a cold stamping forming aluminum production process comprises the following steps:
s1, crushing waste paper into powder to obtain paper powder; adding paper powder into the antibacterial color-changing colloid, mixing and stirring to obtain color-changing gelatinized paper pulp;
s2, weighing a certain amount of polyethylene oxide, melting, spraying the polyethylene oxide on the surface of the aluminum foil layer while the polyethylene oxide is hot, then placing the sprayed aluminum foil layer at room temperature for airing, and forming a layer of isolation layer on the surface of the aluminum foil layer;
s3, uniformly coating the color-changing gelatinized paper pulp on the surface of the isolation layer, and compounding a layer of antibacterial color-changing paper base layer on the surface of the isolation layer to obtain aluminum foil paper;
s4, cold stamping is carried out on the aluminum foil paper through cold stamping equipment 1, wherein the cold stamping equipment 1 comprises a male die 2 and a female die 3, when the aluminum foil paper is subjected to demoulding, air is introduced between the male die 2 and the aluminum foil paper and between the female die 3 and the aluminum foil paper, and the aluminum foil paper is separated from the male die 2 and the female die 3 respectively through the air, so that an aluminum foil paper packaging finished product is obtained;
s5, checking surface flaws of aluminum foil paper packaging finished products, and warehousing qualified products.
For being convenient for let in gas to between aluminium foil paper and terrace die 2 and the die 3, cold stamping equipment 1 includes terrace die 2, be located the die 3 of terrace die 2 below, connect the driving piece between terrace die 2 and die 3, terrace die 2 and die 3 cooperate when the compound die and constitute die cavity 4, terrace die 2 week wall fixedly connected with mounting panel 5, die 3 week wall fixedly connected with mounting panel 6 down, the driving piece includes the pneumatic cylinder 7 of fixed mounting in mounting panel 6 and piston rod connection in mounting panel 5 down.
The inner part of the male die 2 and the inner part of the female die 3 are respectively provided with a first pressure cavity 8, the shape of the first pressure cavity 8 positioned on the male die 2 is layered, the shape of the first pressure cavity 8 positioned on the female die 3 is layered and the shape of the first pressure cavity 8 positioned on the female die 3 is the same, the inner wall of the first pressure cavity 8 is respectively provided with a plurality of air holes 9 communicated with the cavity 4, and the air holes 9 are uniformly distributed in the cavity 4.
The bottom surface of the male die 2 is provided with an annular sealing plate 10 which is arranged in an annular mode around the circumference of the cavity 4, the bottom surface of the male die 2 is provided with an annular inserting groove 11 which is matched with the annular sealing plate 10, the annular sealing plate 10 is inserted in the annular inserting groove 11 in a sliding mode, a plurality of reset springs 12 are arranged between the top surface of the annular sealing plate 10 and the top surface of the annular inserting groove 11, when the bottom end of the annular sealing plate 10 is abutted to the top surface of the female die 3, the periphery of the upper portion of the cavity 4 is provided with an air cavity 13, the parts of the bottom surface of the male die 2 and the top surface of the female die 3 corresponding to the air cavity 13 are provided with air inlet channels 14 which are communicated with the first pressure cavity 8, and one-way valves 15 are arranged in the air inlet channels 14 and used for air inlet towards the inner portion of the first pressure cavity 8. In the process of gradually closing the male die 2 and the female die 3, the air cavity 13 gradually reduces, and air is pressed into the first pressure cavity 8 through the one-way valve 15 and the air inlet channel 14, so that the air pressure in the first pressure cavity 8 is far greater than the air pressure in the cavity 4.
The bottom end face of the annular sealing plate 10 is provided with an annular blade 16 which is arranged around the annular sealing plate 10 in the circumferential direction, the top surface of the female die 3 is provided with an annular groove 17 matched with the annular blade 16, when the male die 2 and the female die 3 are clamped, the annular sealing plate 10 is abutted against the female die 3, and the annular blade 16 is inserted into the annular groove 17, so that aluminum foil paper is cut.
In order to control the opening and closing state of the air hole 9 conveniently, the air hole 9 is provided with a blocking piece 18, and the male die 2 and the female die 3 are respectively provided with a control mechanism 19 for controlling the blocking piece 18 to close or open the air hole 9. The control mechanism 19 comprises a second pressure cavity 20 arranged in the male die 2 and the female die 3, and a pressure regulating tube 21 communicated with the second pressure cavity 20 and respectively extending to the outer part of the male die 2 or the female die 3, wherein the second pressure cavity 20 is of a layered cavity structure positioned on one side of the first pressure cavity 8 away from the cavity 4.
The pressure regulating pipe 21 is connected with a three-position three-way electromagnetic valve 22, the three-position three-way electromagnetic valve 22 is respectively connected with a pressurizing pipe 23 and a depressurizing pipe 24, the pressure medium in the second pressure cavity 20 can be gas or liquid, and correspondingly, the pressurizing pipe 23 is provided with an oil inlet pipe or an air inlet pipe, and the depressurizing pipe 24 is an oil outlet pipe or an air outlet pipe.
In the process of gradually closing the male die 2 and the female die 3, the air cavity 13 is gradually reduced, air is pressed into the first pressure cavity 8 through the one-way valve 15 and the air inlet channel 14, so that the air pressure in the first pressure cavity 8 is far greater than the air pressure in the cavity 4, at the moment, the three-position three-way valve is controlled to enable the pressurizing pipe 23 to be communicated with the pressure regulating pipe 21, so that the air pressure in the second pressure cavity 20 is increased, the air pressure in the second pressure cavity 20 is enabled to be greater than the air pressure in the first pressure cavity 8, at the moment, under the action of the piston post 26, the sealing block 27 is abutted against the air hole 9 to enable the air hole 9 to be closed, when the male die 2 and the female die 3 are opened, the three-position three-way valve is controlled to enable the pressure reducing pipe 24 to be communicated with the pressure regulating pipe 21, the air pressure in the second pressure cavity 20 is enabled to be smaller than the air pressure in the first pressure cavity 8, and under the action of the air pressure difference, the piston is enabled to drive the sealing block 27 to be far away from the air hole 9, so that the air hole 9 is opened.
The plugging piece 18 comprises a connecting hole 25 communicated between the first pressure cavity 8 and the second pressure cavity 20, a piston column 26 in the connecting hole 25 in a sliding and inserting mode, a plugging block 27 fixedly connected to one end of the piston column 26 located in the first pressure cavity 8, and a limiting block 28 fixedly connected to one end of the piston column 26 located in the second pressure cavity 20, wherein the plugging block 27 is in sliding and inserting mode in the air hole 9 to seal the air hole 9.
In order to reduce the impact force to the aluminum foil paper when the air hole 9 is used for spraying air, the air hole 9 is in a circular truncated cone shape, the diameter of one end of the air hole 9 close to the cavity 4 is smaller than the diameter of the air hole 9 close to the second pressure cavity 20, and the sealing block 27 is in a circular truncated cone-shaped structure matched with the air hole 9. The inner peripheral wall of the air hole 9 is provided with a plurality of drainage grooves 29, the drainage grooves 29 penetrate through one end, close to the cavity 4, of the air hole 9, the drainage grooves 29 extend along chord tangent lines of the air hole 9, and the peripheral wall of the sealing block 27 is fixedly connected with a plurality of sealing belts 30 matched with the drainage grooves 29.
When the gas in the first pressure cavity 8 flows into the cavity 4 through the gas hole 9, as the gas hole 9 is in a circular truncated cone shape, the drainage groove 29 positioned on the inner side wall of the gas hole 9 is in an inclined state relative to the inner side wall of the cavity 4, and the flowing direction of the gas flow is an acute angle with the aluminum foil paper positioned in the cavity 4 under the action of the drainage groove 29, so that the gas flow is not easy to directly blow the aluminum foil paper when flowing towards the inside of the cavity 4, the pressure of the gas pressure on the aluminum foil paper is reduced, and the possibility of deformation of the aluminum foil paper is reduced.
The pressure relief pipelines 31 extending to the outside of the male die 2 or the outside of the female die 3 are communicated on the first pressure cavity 8, an adjusting piece 32 is arranged at one end, far away from the first pressure cavity 8, of the pressure relief pipelines 31, a threaded ring 33, a plurality of support rods 34, an adjusting screw 35, an abutting ring 36 and an adjusting block 37, wherein the threaded ring 33 is positioned in the pressure relief pipelines 31, the support rods 34 are fixedly connected to the threaded ring 33 and the inner wall of the pressure relief pipelines 31, the adjusting screw 35 is in threaded connection with the threaded ring 33, the abutting ring 36 is fixedly connected to the inner wall of the pressure relief pipelines 31, the adjusting block 37 is arranged at the end of the adjusting screw 35 and abuts against the adjusting block 37 on the inner wall of the abutting ring 36, the inner wall of the abutting ring 36 is in a round table shape with gradually increased diameter, and one end, where the adjusting screw 35 extends out of the pressure relief pipelines 31, is provided with a knob 38.
The adjusting block 37 is elastically connected with the adjusting screw rod 35, the end face of the adjusting block 37 is provided with a plug hole 39, the adjusting screw rod 35 is slidably plugged in the plug hole 39, a supporting spring 40 is arranged between the end part of the adjusting screw rod 35 and the inner wall of the plug hole 39, one end, close to the opening, of the inner wall of the plug hole 39 is fixedly connected with a first limiting ring 41, and the peripheral wall, located in the plug hole 39, of the adjusting screw rod 35 is fixedly connected with a second limiting ring 42.
Through setting up pressure release pipeline 31 to set up regulating block 37 and butt ring 36 in pressure release pipeline 31, when carrying out cold stamping forming to the aluminium foil paper of different materials, through rotating adjusting screw 35, make adjusting screw 35 drive regulating block 37 support in butt ring 36's inner wall, when the atmospheric pressure in first pressure chamber 8 is greater than the elasticity of supporting spring 40, atmospheric pressure pushes away regulating block 37, can follow pressure release pipeline 31 internal blowout, make first pressure chamber 8 can keep invariable pressure, reduce the too big condition to aluminium foil paper pressure when leading to being erupted from gas pocket 9 of internal atmospheric pressure of first pressure chamber 8.
The implementation principle of the invention is as follows:
in the process of gradually closing the male die 2 and the female die 3, the air cavity 13 is gradually reduced, air is pressed into the first pressure cavity 8 through the one-way valve 15 and the air inlet channel 14, so that the air pressure in the first pressure cavity 8 is far greater than the air pressure in the cavity 4, at the moment, the three-position three-way valve is controlled to enable the booster pipe 23 to be communicated with the pressure regulating pipe 21, so that the air pressure in the second pressure cavity 20 is increased, the air pressure in the second pressure cavity 20 is enabled to be greater than the air pressure in the first pressure cavity 8, at the moment, under the action of the piston post 26, the sealing block 27 is abutted against the air hole 9 to enable the air hole 9 to be closed, when the male die 2 and the female die 3 are opened, the three-position three-way valve is controlled to enable the pressure reducing pipe 24 to be communicated with the pressure regulating pipe 21 to reduce the air pressure in the second pressure cavity 20, the air pressure in the second pressure cavity 20 is smaller than the air pressure in the first pressure cavity 8, under the action of air pressure difference, the piston drives the sealing block 27 to be away from the air hole 9, so that the air hole 9 is opened, air in the first pressure cavity 8 is injected between the aluminum foil paper and the male die 2 and between the aluminum foil paper and the female die 3 through the air hole 9, the air is filled between the aluminum foil paper and the male die 2 and between the aluminum foil paper and the female die 3, the aluminum foil paper adhered to the inner wall of the cavity 4 is separated from the male die 2 and the female die 3 through the air, and in the process, the aluminum foil paper is prevented from being torn or deformed due to overlarge stress of a certain part due to the fact that the air has fluidity, so that the stress of the aluminum foil paper is more uniform, and the yield of the aluminum foil paper packaging finished product is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but is capable of various changes and modifications without departing from the spirit and scope of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The cold stamping forming aluminum production process is characterized by comprising the following steps of:
s1, crushing waste paper into powder to obtain paper powder; adding paper powder into the antibacterial color-changing colloid, mixing and stirring to obtain color-changing gelatinized paper pulp;
s2, weighing a certain amount of polyethylene oxide, melting, spraying the polyethylene oxide on the surface of the aluminum foil layer while the polyethylene oxide is hot, then placing the sprayed aluminum foil layer at room temperature for airing, and forming a layer of isolation layer on the surface of the aluminum foil layer;
s3, uniformly coating the color-changing gelatinized paper pulp on the surface of the isolation layer, and compounding a layer of antibacterial color-changing paper base layer on the surface of the isolation layer to obtain aluminum foil paper;
s4, cold stamping is carried out on the aluminum foil paper through cold stamping equipment (1), the cold stamping equipment (1) comprises a male die (2) and a female die (3), when the aluminum foil paper is subjected to demoulding, air is introduced between the male die (2) and the aluminum foil paper and between the female die (3) and the aluminum foil paper, and the aluminum foil paper is separated from the male die (2) and the female die (3) respectively through the air, so that an aluminum foil paper packaging finished product is obtained;
s5, checking surface flaws of aluminum foil paper packaging finished products, and warehousing qualified products.
2. The cold stamping aluminum production process as recited in claim 1, wherein: the cold stamping equipment (1) comprises a male die (2), a female die (3) arranged below the male die (2), and a driving piece connected between the male die (2) and the female die (3), wherein the male die (2) and the female die (3) are matched to form a cavity (4), a first pressure cavity (8) is formed in the male die (2) and the female die (3), a plurality of air holes (9) communicated with the cavity (4) are formed in the inner wall of the first pressure cavity (8), a blocking piece (18) is arranged on the air holes (9), and a control mechanism (19) for controlling the blocking piece (18) to be closed or opened is arranged on the male die (2) and the female die (3).
3. A cold stamping aluminum production process as defined in claim 2, wherein: the utility model discloses a die, including die (3) and punch, punch (2) bottom surface is equipped with around die cavity (4) circumference is annular shrouding (10) that sets up, punch (2) bottom surface seted up with annular shrouding (10) matched with annular spliced groove (11), annular shrouding (10) slip peg graft in annular spliced groove (11), annular shrouding (10) top surface with be equipped with a plurality of reset spring (12) between annular spliced groove (11) top surface, when annular shrouding (10) bottom butt in die (3) top surface, make die cavity (4) top periphery form air cavity (13), punch (2) bottom surface with die (3) top surface corresponds air cavity (13)'s part all seted up the intercommunication in air inlet channel (14) of first pressure chamber (8), all be equipped with check valve (15) in air inlet channel (14), check valve (15) are used for towards inside inlet of first pressure chamber (8).
4. A cold stamping aluminum production process as defined in claim 3, wherein: the annular seal plate is characterized in that an annular blade (16) which is arranged around the annular seal plate (10) in the circumferential direction is arranged on the end face of the bottom of the annular seal plate (10), and an annular groove (17) matched with the annular blade (16) is formed in the top surface of the female die (3).
5. A cold stamping aluminum production process as defined in claim 2, wherein: the control mechanism (19) comprises a second pressure cavity (20) arranged in the male die (2) and the female die (3), a pressure regulating pipe (21) communicated with the second pressure cavity (20) and respectively extending to the male die (2) or the female die (3), a three-position three-way electromagnetic valve (22) is connected to the pressure regulating pipe (21), a pressurizing pipe (23) and a depressurizing pipe (24) are respectively connected to the three-position three-way electromagnetic valve (22), the plugging piece (18) comprises a connecting hole (25) communicated between the first pressure cavity (8) and the second pressure cavity (20), a piston column (26) connected to the connecting hole (25) in a sliding mode, a sealing block (27) fixedly connected to one end of the piston column (26) located in the first pressure cavity (8), and a limiting block (28) fixedly connected to one end of the piston column (26) located in the second pressure cavity (20), and the sealing block (27) slides in the air hole (9) to seal the air hole (9).
6. The cold stamping aluminum production process as defined in claim 5, wherein: the air hole (9) is in a circular truncated cone shape, the diameter of one end, close to the cavity (4), of the air hole (9) is smaller than the diameter, close to the second pressure cavity (20), of the air hole (9), and the sealing block (27) is in a circular truncated cone-shaped structure matched with the air hole (9).
7. The cold stamping aluminum production process as defined in claim 6, wherein: a plurality of drainage grooves (29) are formed in the inner peripheral wall of the air hole (9), the drainage grooves (29) penetrate through one end, close to the cavity (4), of the air hole (9), the drainage grooves (29) extend along chord tangent lines of the air hole (9), and a plurality of sealing belts (30) matched with the drainage grooves (29) are fixedly connected to the peripheral wall of the sealing block (27).
8. A cold stamping aluminum production process as defined in claim 3, wherein: the pressure relief device is characterized in that the first pressure cavity (8) is communicated with a pressure relief pipeline (31) extending to the outside of the male die (2) or the outside of the female die (3), one end of the pressure relief pipeline (31) away from the first pressure cavity (8) is provided with an adjusting piece (32), the adjusting piece (32) is located in a threaded ring (33) in the pressure relief pipeline (31), the threaded ring (33) is fixedly connected with a plurality of supporting rods (34) on the inner wall of the pressure relief pipeline (31), the threaded connection is carried out on an adjusting screw (35) in the threaded ring (33), the abutting ring (36) is fixedly connected to the inner wall of the pressure relief pipeline (31), the end of the adjusting screw (35) is abutted to an adjusting block (37) on the inner wall of the abutting ring (36), the abutting ring (36) is in a round table shape with gradually increased diameter, the inner side wall (37) is arranged in a round table shape matched with the inner side wall of the abutting ring (36), and one end of the adjusting screw (35) extends out of the pipeline (31) to be provided with a knob (38).
9. The cold stamping aluminum production process as recited in claim 8, wherein: the adjusting block (37) is in elastic connection with the adjusting screw (35), a plug hole (39) is formed in the end face of the adjusting block (37), the adjusting screw (35) is in sliding plug connection with the plug hole (39), a supporting spring (40) is arranged between the end portion of the adjusting screw (35) and the inner wall of the plug hole (39), a first limiting ring (41) is fixedly connected with one end, close to an opening, of the inner wall of the plug hole (39), and a second limiting ring (42) is fixedly connected with one end peripheral wall of the adjusting screw (35) in the plug hole (39).
10. A cold stamping aluminum production process as defined in claim 2, wherein: the male die (2) is fixedly connected with an upper mounting plate (5), the female die (3) is fixedly connected with a lower mounting plate (6), and the driving piece comprises a hydraulic cylinder (7) fixedly mounted on the lower mounting plate (6) and a piston rod connected with the upper mounting plate (5).
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11226683A (en) * | 1998-02-17 | 1999-08-24 | Kadowaki Shiki Kogyosho:Kk | Container forming apparatus |
| US9511404B1 (en) * | 2015-07-01 | 2016-12-06 | Po Ming Huang | Sheet molding device |
| CN110304344A (en) * | 2019-07-02 | 2019-10-08 | 田帅 | A kind of production technology of antibacterial environment protection anti-fake aluminium-foil paper |
| CN212884466U (en) * | 2020-05-20 | 2021-04-06 | 广东福禾包装科技有限公司 | Self-cooled lunch box stamping die |
| CN214919732U (en) * | 2021-01-27 | 2021-11-30 | 上海莱凯包装制品有限公司 | Demoulding device is used in production of aluminium foil goods |
| CN218134399U (en) * | 2022-11-02 | 2022-12-27 | 福建优你康光学有限公司 | Automatic blanking die stamping machine for aluminum foil processing |
| CN116037763A (en) * | 2023-03-16 | 2023-05-02 | 曹春妨 | Stamping forming mechanism for aluminum plastic film |
| CN219337944U (en) * | 2022-12-16 | 2023-07-14 | 苏州宏阳宇机械科技有限公司 | Aluminum foil stamping and cutting die structure |
-
2023
- 2023-10-21 CN CN202311367517.XA patent/CN117265915B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11226683A (en) * | 1998-02-17 | 1999-08-24 | Kadowaki Shiki Kogyosho:Kk | Container forming apparatus |
| US9511404B1 (en) * | 2015-07-01 | 2016-12-06 | Po Ming Huang | Sheet molding device |
| CN110304344A (en) * | 2019-07-02 | 2019-10-08 | 田帅 | A kind of production technology of antibacterial environment protection anti-fake aluminium-foil paper |
| CN212884466U (en) * | 2020-05-20 | 2021-04-06 | 广东福禾包装科技有限公司 | Self-cooled lunch box stamping die |
| CN214919732U (en) * | 2021-01-27 | 2021-11-30 | 上海莱凯包装制品有限公司 | Demoulding device is used in production of aluminium foil goods |
| CN218134399U (en) * | 2022-11-02 | 2022-12-27 | 福建优你康光学有限公司 | Automatic blanking die stamping machine for aluminum foil processing |
| CN219337944U (en) * | 2022-12-16 | 2023-07-14 | 苏州宏阳宇机械科技有限公司 | Aluminum foil stamping and cutting die structure |
| CN116037763A (en) * | 2023-03-16 | 2023-05-02 | 曹春妨 | Stamping forming mechanism for aluminum plastic film |
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| CN117265915B (en) | 2024-10-15 |
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