CN109821998A - A kind of swollen type moulding process of abnormal shape metal can - Google Patents

A kind of swollen type moulding process of abnormal shape metal can Download PDF

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Publication number
CN109821998A
CN109821998A CN201910132525.3A CN201910132525A CN109821998A CN 109821998 A CN109821998 A CN 109821998A CN 201910132525 A CN201910132525 A CN 201910132525A CN 109821998 A CN109821998 A CN 109821998A
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China
Prior art keywords
swollen
swollen type
type
time
mold
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Pending
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CN201910132525.3A
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Chinese (zh)
Inventor
周斌
张磊
何晓刚
江轲
冯萍萍
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Shenzhen City Packing Co Ltd
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Shenzhen City Packing Co Ltd
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Priority to CN201910132525.3A priority Critical patent/CN109821998A/en
Publication of CN109821998A publication Critical patent/CN109821998A/en
Pending legal-status Critical Current

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Abstract

A kind of swollen type moulding process of special-shaped metal can of the present invention, specifically: printing tinplate aniseed → cutting printing aniseed rotates by a certain angle at outer (interior) coating drying of (interior) coating → weld seam outside small tablet → small tablet Cheng Yuan → welding → weld seam → first time is swollen type → mold, mold longitudinal movement certain distance → swollen type → tank mouth flange → capping for the second time, wherein mold rotation angle is determined by mold block number, and the distance of mold longitudinal movement is determined by can body height.The present invention is provided a kind of special-shaped swollen type moulding process of metal can and is formed using secondary swollen type technique by the above moulding process, and can body surface is smooth, not the open defect as caused by mold, so that product quality greatly improved.

Description

A kind of swollen type moulding process of abnormal shape metal can
Technical field
The present invention relates to metal can preparation process fields, more particularly to a kind of swollen type moulding process of special-shaped metal can.
Background technique
Special-shaped metal three-piece can is one of common metal tank, at present abnormal shape metal three-piece can usually using swollen pattern have at Type, moulding process are as follows: printing tinplate aniseed → cutting printing aniseed is at small tablet → small tablet Cheng Yuan → welding → weld seam Outer (interior) coating drying → swollen type → tank mouth flange → capping of (interior) coating → weld seam, molding critical process are swollen type outside, due to Swollen pattern tool is composed of many blocks, has gap between swollen type mold block and block, can body after swollen type is caused to have different journeys The trace of degree seriously affects can body appearance, and applicant designs a kind of swollen type moulding process of novel special-shaped metal can thus.
Summary of the invention
In order to solve problem above, the present invention provides a kind of special-shaped metal can swollen type moulding process, using secondary swollen type work Skill is formed by the above moulding process, and can body surface is smooth, not the open defect as caused by mold, to greatly improved Product quality, for this purpose, the present invention provides a kind of special-shaped metal can swollen type moulding process, the specific steps are as follows:
1) need to print tinplate aniseed according to required processing metal can;
2) aniseed printed handle at circle after being cut into small tablet, cylinder is formed by welding later, after the completion of welding Weld seam coating is carried out according to actual needs, later dries weld seam coating;
3) carry out swollen type for the first time using corresponding swollen pattern tool according to the case where required molding special-shaped metal can, swollen pattern tool by The gaps such as the swollen pattern tool of respective numbers were composed around tank body center line one week, were formed after the completion of swollen type for the first time swollen for the first time Type tank body after molding forms tank surface and has nicking defect, and the shoulder of tank mouth has pit defect;
4) mold is rotated into respective angles, makes smooth position of the die clearance after can body for the first time swollen type, due to swollen for the first time Tank body height reduces corresponding height after type molding, then mold is vertically moved to mold when highly making second of swollen type accordingly Shoulder be just overlapped with can body shoulder after swollen type for the first time, after completing two above operation, carry out second of swollen type and eliminate the The vertical line and shoulder pit defect of can body, can body become smooth after primary swollen type;
5) tank mouth flange is carried out to second of swollen type tank body after molding and capping handles to obtain required special-shaped metal can.
Further improvement of the present invention, weld seam coating is external coating or inside and outside equal coating, coating in weld seam in step 2 Determined according to metal can actual operation requirements, some metal cans do not need interior coating.
Further improvement of the present invention, swollen pattern tool is whole to be composed of 16 pieces of swollen pattern tools, applicant's specific implementation It is middle to be combined into swollen pattern tool entirety using 16 pieces of swollen pattern tools.
Further improvement of the present invention, swollen pattern tool rotates integrally 12.5 degree in step 4, makes die clearance in can body the Smooth position after primary swollen type, can body height reduces 8.5mm after swollen type for the first time, longitudinally moves mold before second of swollen type Dynamic 8.5mm, so that the shoulder of mold is just overlapped with can body shoulder after swollen type for the first time when second of swollen type, the application exists It gets application in actual production, mold rotation is in production with upper angle and the mobile above distance.
A kind of special-shaped swollen type moulding process of metal can of the present invention, using secondary swollen type technique, specifically: printing tinplate is big Material → cutting printing aniseed is dried at outer (interior) coating of (interior) coating → weld seam outside small tablet → small tablet Cheng Yuan → welding → weld seam It is dry → for the first time swollen type → mold rotate by a certain angle, mold longitudinal movement certain distance → second of swollen type → tank mouth flange → Capping, wherein mold rotation angle is determined by mold block number, and mold longitudinal movement distance is determined by can body height.By above at The tank body of type technological forming, can body surface is smooth, not the open defect as caused by mold.
Detailed description of the invention
Fig. 1 is the swollen pattern tool moulding section main view of the present invention;
Fig. 2 is the swollen pattern tool moulding section top view of the present invention;
Fig. 3 is can body schematic diagram after type swollen for the first time of the invention;
Fig. 4 is tank side view after type swollen for the first time of the invention;
Fig. 5 is can body schematic diagram after second of swollen type of the present invention;
Fig. 6 is schematic diagram after can end flange of the present invention;
Fig. 7 is schematic diagram after can body capping of the present invention.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
The present invention provides a kind of special-shaped swollen type moulding process of metal can, using secondary swollen type technique, by the above moulding process at Type, can body surface is smooth, not the open defect as caused by mold, so that product quality greatly improved.
A kind of swollen type moulding process of special-shaped metal can of the present invention, the specific steps are as follows:
1) need to print tinplate aniseed according to required processing metal can;
2) aniseed printed handle at circle after being cut into small tablet, cylinder is formed by welding later, after the completion of welding Carry out according to actual needs outer (interior) coating of weld seam (explanation: coating is determined according to metal can actual operation requirements in weld seam, some Metal can does not need interior coating), weld seam coating is dried later;
3) first is carried out using the swollen pattern tool of correspondence as depicted in figs. 1 and 2 according to the case where required molding special-shaped metal can Secondary swollen type, swollen pattern tool is whole to be composed of 16 pieces of swollen pattern tools, and swollen pattern tool is by gaps such as the swollen pattern tools of respective numbers It was composed around tank body center line one week, after forming first time as shown in Figures 2 and 3 swollen type molding after the completion of swollen type for the first time Tank body, due to swollen pattern tool mold in metal jug forming it is two pieces adjacent between have certain gap, this is resulted in the After primary swollen type, semi-finished product can body surface has nicking defect, and the shoulder of tank mouth has pit defect, does not meet can body Appearance requirement;
4) mold is rotated 12.5 degree, makes smooth position of the die clearance after can body for the first time swollen type, due to first time swollen type Tank body height after molding reduces 8.5mm, then mold is vertically moved 8.5mm, so that the shoulder of mold is rigid when second of swollen type Good and can body shoulder coincidence after swollen type for the first time after completing two above operation, carries out second of swollen type elimination swollen type for the first time The vertical line of can body and shoulder pit defect afterwards, can body become smooth as shown in Figure 5;
5) tank mouth flange is carried out to second of swollen type tank body after molding, tank body after processing as shown in fig. 6, carry out capping processing again Obtain the special-shaped metal can as needed for Fig. 7.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention System, and made any modification or equivalent variations according to the technical essence of the invention, still fall within present invention model claimed It encloses.

Claims (4)

1. a kind of swollen type moulding process of abnormal shape metal can, specific step is as follows, it is characterised in that:
1) need to print tinplate aniseed according to required processing metal can;
2) aniseed printed handle at circle after being cut into small tablet, cylinder is formed by welding later, after the completion of welding Weld seam coating is carried out according to actual needs, later dries weld seam coating;
3) carry out swollen type for the first time using corresponding swollen pattern tool according to the case where required molding special-shaped metal can, swollen pattern tool by The gaps such as the swollen pattern tool of respective numbers were composed around tank body center line one week, were formed after the completion of swollen type for the first time swollen for the first time Type tank body after molding forms tank surface and has nicking defect, and the shoulder of tank mouth has pit defect;
4) mold is rotated into respective angles, makes smooth position of the die clearance after can body for the first time swollen type, due to swollen for the first time Tank body height reduces corresponding height after type molding, then mold is vertically moved to mould when highly making second of swollen type accordingly The shoulder of tool is just overlapped with can body shoulder after swollen type for the first time, after completing two above operation, is carried out second of swollen type, is eliminated For the first time after swollen type can body vertical line and shoulder pit defect, can body becomes smooth;
5) tank mouth flange is carried out to second of swollen type tank body after molding and capping handles to obtain required special-shaped metal can.
2. a kind of swollen type moulding process of special-shaped metal can according to claim 1, it is characterised in that: weld seam is mended in step 2 It is painted with external coating or inside and outside equal coating.
3. a kind of special-shaped swollen type moulding process of metal can according to claim 1, it is characterised in that: swollen pattern tool it is whole by 16 pieces of swollen pattern tools are composed.
4. a kind of swollen type moulding process of special-shaped metal can according to claim 3, it is characterised in that: swollen pattern in step 4 Tool rotates integrally 12.5 degree, makes smooth position of the die clearance after can body for the first time swollen type, for the first time can body height after swollen type Reduce 8.5mm, mold vertically moved into 8.5mm before second swollen type so that when second of swollen type the shoulder of mold just and Can body shoulder is overlapped after swollen type for the first time.
CN201910132525.3A 2019-02-22 2019-02-22 A kind of swollen type moulding process of abnormal shape metal can Pending CN109821998A (en)

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CN201910132525.3A CN109821998A (en) 2019-02-22 2019-02-22 A kind of swollen type moulding process of abnormal shape metal can

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110280981A (en) * 2019-08-14 2019-09-27 江门市银铭家居制品有限公司 A kind of preparation method of cone-shaped metal cup
CN112298728A (en) * 2020-10-23 2021-02-02 广东韩江轻工机械有限公司 Method and system for manufacturing full-opening easy-open-end trapezoidal can
CN112935125A (en) * 2021-02-09 2021-06-11 奥瑞金科技股份有限公司 Method for producing metal can and metal can

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1085874A (en) * 1996-09-13 1998-04-07 Toyo Seikan Kaisha Ltd Die for bulging can body, and its manufacture
CN1262980A (en) * 1999-02-06 2000-08-16 周勋 Production process of unconventional three-piece tin can
JP2013006209A (en) * 2011-06-27 2013-01-10 Hokkai Can Co Ltd Method for manufacturing expanded can barrel
CN106216538A (en) * 2016-08-04 2016-12-14 中南大学 A kind of major diameter ring mechanical expansion equipment
CN108772501A (en) * 2018-06-12 2018-11-09 福建德通金属容器股份有限公司 A kind of irregular can
CN108857293A (en) * 2018-09-13 2018-11-23 安徽中盛罐业股份有限公司 A kind of preparation process of novel can

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1085874A (en) * 1996-09-13 1998-04-07 Toyo Seikan Kaisha Ltd Die for bulging can body, and its manufacture
CN1262980A (en) * 1999-02-06 2000-08-16 周勋 Production process of unconventional three-piece tin can
JP2013006209A (en) * 2011-06-27 2013-01-10 Hokkai Can Co Ltd Method for manufacturing expanded can barrel
CN106216538A (en) * 2016-08-04 2016-12-14 中南大学 A kind of major diameter ring mechanical expansion equipment
CN108772501A (en) * 2018-06-12 2018-11-09 福建德通金属容器股份有限公司 A kind of irregular can
CN108857293A (en) * 2018-09-13 2018-11-23 安徽中盛罐业股份有限公司 A kind of preparation process of novel can

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110280981A (en) * 2019-08-14 2019-09-27 江门市银铭家居制品有限公司 A kind of preparation method of cone-shaped metal cup
CN112298728A (en) * 2020-10-23 2021-02-02 广东韩江轻工机械有限公司 Method and system for manufacturing full-opening easy-open-end trapezoidal can
CN112935125A (en) * 2021-02-09 2021-06-11 奥瑞金科技股份有限公司 Method for producing metal can and metal can

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