CN104846589B - A kind of inner cylinder for drum washing machine and its manufacture method - Google Patents
A kind of inner cylinder for drum washing machine and its manufacture method Download PDFInfo
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- CN104846589B CN104846589B CN201410053120.8A CN201410053120A CN104846589B CN 104846589 B CN104846589 B CN 104846589B CN 201410053120 A CN201410053120 A CN 201410053120A CN 104846589 B CN104846589 B CN 104846589B
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Abstract
The invention discloses a kind of inner cylinder for drum washing machine, including protecgulum, stack shell and bonnet, the protecgulum of this inner core, stack shell and bonnet form integrative-structure；The invention also discloses the manufacture method of this inner cylinder for drum washing machine, the manufacture method may be summarized to be stretching → shaping → closing in → edge rolling → rush side opening and decorative pattern.Compared with prior art, this inner cylinder for drum washing machine is integrally formed, and increased its intensity, so as to extend service life, in addition, the method for this inner cylinder for drum washing machine greatly reduces the equipment and mold of needs, prepare simpler, quick, and dramatically reduce cost of manufacture.
Description
Technical field
The present invention relates to a kind of inner tank of washing machine, more particularly to a kind of inner core for being useful in roller washing machine, the invention is also
It is related to a kind of manufacture method of inner cylinder for drum washing machine.
Background technology
The inner core of conventional washer cylinder generally adopts three pieces of punching press tablets, after this three blocks piece difference punch forming, enters
Row edge rolling, forms protecgulum, stack shell and bonnet respectively, wherein, the tablet two ends for preparing stack shell are hinged and form stack shell, so
Afterwards, stack shell is linked into an integrated entity by revolving riveting with protecgulum or bonnet；Or the junction of this three part is directly solid using welding manner
Surely link into an integrated entity.The splicing junction of traditional cylinder inner core is hinged rotation riveting shaping or welds, and causes washing machine drum
Be present a little burr in inner tank theca, when washing machine is in normal operation, be particularly under the operating mode of high speed dewatering, the office of cloth grass
Portion can be extruded into the outer layer of inner core because of external force from the internal layer of the inner core of washing machine drum along the concave hole in mesh sheet, so as to interior
Burr hanging wire on cylinder outer layer concave hole is pulled, thus brings economic loss to user to a certain extent；In addition, because interior
The junction of the protecgulum, stack shell and bonnet of cylinder is hinged rotation riveting shaping or integrally welded, causes the intensity decreases of inner core, shortens
Its service life.
The inner core of conventional washer cylinder in the preparation, first respectively with three mould molding protecgulums, stack shell and bonnets, so
Again protecgulum, stack shell and bonnet are fixedly connected afterwards integral.Wherein be molded protecgulum be need to through four operations, bonnet need to be through five
Individual operation, stack shell need tri- operations of Jing, need by four special equipments when being fixedly connected, and are stack shell edge rolling, stack shell hinge respectively
Connect, the rotation riveting of inner core front/rear cover and tripod screw are fixed.As can be seen here, traditional cylinder inner core molding procedure is complicated, needs
By multiple special equipments, production cost is virtually being increased.
The Chinese utility model patent of Patent No. ZL200920154306.7《Inner cylinder for drum washing machine》(Authorization Notice No.
For CN201530931U) a kind of inner cylinder for drum washing machine is disclosed, the inner core includes rearward end, stack shell and front end opening, institute
State the diameter with diameter greater than the front end opening of stack shell.The inner cylinder for drum washing machine is by rearward end, stack shell and front opening
This three part of portion constitutes, and the seam crossing of this three part is butt seam welding structure, and butt seam welding structure is reduced to a certain extent
The working strength of the inner core, in addition, the inner core molding procedure is complicated, increased cost of manufacture.
Separately there is the Chinese utility model patent of Patent No. ZL200820236919.0《Inner barrel of roller washing machine》(authorize public
Announcement number is CN201334606Y), a kind of inner barrel of roller washing machine is it discloses, the interior bucket is made up of staving, bonnet, protecgulum, and
And this three parts riveting is integral, that is to say, that the phase stitching portion of interior bucket with rivet interlacement together.Although riveting also can be by bucket
Body, bonnet and protecgulum link together, but are the increase in the operation of one riveting, also improve manufacturing cost.
The also Chinese utility model patent of Patent No. ZL201020503898.1《A kind of inner barrel of roller washing machine》(award
Power notification number is CN201785625U) disclose a kind of inner barrel of roller washing machine, including interior bucket ladle body body and leaking hole, interior bucket
The interface of ladle body body is provided with the rectangle gear piece for staggeredly overlapping, and gear piece is provided with rivet hole and passes through rivet by interior bucket ladle body
Body rivets into cylindrical shape.The interface of the ladle body of the inner barrel of roller washing machine passes through rivet and the mating reaction of rectangle gear piece will
Ladle body connects into cylindrical shape, and its connected mode is more complicated, equally also increases cost of manufacture.
The content of the invention
Primary technical problem to be solved by this invention be to provide it is a kind of it is rational in infrastructure, be easy to be manufactured, reduce producing
The inner cylinder for drum washing machine of cost.
Another technical problem to be solved by this invention is to provide one kind will not be in the hurtful washing machine of clothing
Cylinder.
Another technical problem to be solved by this invention is to provide that a kind of operation is few, low cost inner cylinder for drum washing machine
Manufacture method.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for：A kind of inner cylinder for drum washing machine, including protecgulum,
Stack shell and bonnet, it is characterised in that：The protecgulum, stack shell and bonnet form integrative-structure.
On the one hand, the inner cylinder for drum washing machine inner and outer wall after being integrally formed all is shiny surface, and outer wall will not produce volume
Outer burr, so as to avoid the damage to clothes to be washed, and then reduces the use cost of user indirectly；On the other hand,
Integrally formed inner cylinder for drum washing machine does not have any stitching portion, increased its intensity, so as to extend service life；And,
It is rational in infrastructure, it is easy to be manufactured, reduces production cost.
The integrally formed inner cylinder for drum washing machine of above-mentioned technical proposal is molded through following steps：
(1) stretch, circular sheet material is drawn into into inner core base substrate；
(2) shaping, bottom punching, the inner core base substrate is shaped to the cylinder I for meeting design specification, and cylinder I's
Bottom punching；
(3) close up, closing up at the openend of the cylinder I is shaped to cylinder II, and closing in section forms the dispensing port of cylinder II；
(4) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process, forms cylinder III, the cylinder
Bonnet is formed on the bottom of III, and middle part forms stack shell, and closing in section forms protecgulum；
(5) side opening is rushed, the punching on the stack shell side wall of cylinder III.
Used as improvement, on the stack shell side wall of cylinder III, also punching has decorative pattern, punching and shock wave line carry out simultaneously, also may be used
With first punching backlash decorative pattern.
Integrally formed inner cylinder for drum washing machine can also be made by the steps and form：
(1) stretch, circular sheet material is drawn into into inner core base substrate；
(2) shaping, bottom punching, the inner core base substrate is shaped to the cylinder I for meeting design specification, and cylinder I's
Bottom punching；
(3) side opening is rushed, the punching on the side wall of the cylinder I；
(4) close up, closing up at the openend of the cylinder I is shaped to cylinder II, and closing in section forms the dispensing port of cylinder II；
(5) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process, forms cylinder III, the cylinder
Bonnet is formed on the bottom of III, and middle part forms stack shell, and closing in section forms protecgulum.
Used as improvement, on the side wall of cylinder I, also punching has decorative pattern, punching and shock wave line carry out simultaneously, it is also possible to first rush
Hole backlash decorative pattern.
In the manufacture method of above two inner cylinder for drum washing machine, the diameter r1 of cylinder I is 300～600mm, height h1
For 100～400mm.
When closing up to cylinder I, the height h2 of the closing in is 5～100mm, and closing in width w1 is 5～150mm.
When carrying out edge rolling at the opening to cylinder II, the volume diameter of a circle r2 is 3～15mm.
In the middle part of sliding channel punching to cylinder III or cylinder I, shock wave line, the aperture of punching is 1.0～3.5mm, decorative pattern
Deep 0.5～3.0mm.
After closing in, the stack shell is connected by a fillet surface with protecgulum, and the radius r3 of the fillet surface is more than 5mm.
Compared with prior art, it is an advantage of the current invention that：The inner cylinder for drum washing machine is integrally formed and is integrated,
On the one hand, its outer wall will not produce extra burr, so as to avoid the damage to clothes to be washed, and then reduce indirectly use
The use cost of person；On the other hand, integrally formed inner cylinder for drum washing machine does not have any stitching portion, increased its intensity, from
And extend service life.In addition, the preparation method of this inner cylinder for drum washing machine greatly reduces production process, the equipment for needing
And mould, prepare simpler, quick, and dramatically reduce cost of manufacture.
Description of the drawings
Structural representations of the Fig. 1 for one inner cylinder for drum washing machine of embodiment；
Structural representations of the Fig. 2 for one cylinder I of embodiment；
Structural representations of the Fig. 3 for one cylinder II of embodiment；
Fig. 4 is the enlarged drawing of components A in Fig. 3；
Structural representations of the Fig. 5 for one cylinder III of embodiment；
Fig. 6 is the enlarged drawing of part B in Fig. 5；
Fig. 7 is the structural representation after the lateral shock wave line of Fig. 6 stack shells；
Operation charts of the Fig. 8 for the lateral shock wave line of stack shell.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one
As shown in Figures 1 to 8, the inner cylinder for drum washing machine of the present embodiment includes being sequentially connected protecgulum 1, stack shell 2 and after
Lid 3, this three are integrally formed especially by Special frock device and are structure as a whole, and the manufacture method of concrete shaping includes：
(1) stretch, with 300 tons of hydraulic presses by the circular stainless steel stretched into inner core base substrate, blanking of model STS430-2B
A diameter of 700mm, the thickness of inner core base substrate is 0.4mm, and the technique need to be by special inner cylinder for drum washing machine mould, inner core base
The groove 11 of power supply machine driving is formed on the outer face of body bottom；
(2) shaping, bottom punching, the inner core base substrate that deep-draw is stretched into are shaped to the cylinder I for meeting design specification, cylinder I
Thickness be 0.4mm, and in the bottom punching of cylinder I, the bottom of cylinder I forms hole 4, and the hole 4 has filters, is dehydrated and washes
The effect washed, the step equipment needed thereby are 300 tons of punch presses, it is shaped after the diameter r1 of cylinder I be 300mm, height h1 is
100mm；
(3) close up, closed up at the openend of cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
The dispensing port for putting into for laundry item and taking out, closing in height h2 are 5mm, and closing in width w1 is 5mm；
(4) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process with furling plate round machine, and the radius r2 of edge rolling is
3mm, forms cylinder III, and now, bonnet is formed on the bottom of cylinder III, and middle part forms stack shell, and closing in section forms protecgulum, Jing Guoshou
After mouthful this operation, stack shell is connected by a fillet surface with protecgulum, and the radius of the fillet surface is 6mm；
(5) side opening/shock wave line is rushed, punching and shock wave line on the stack shell side wall of cylinder III, the aperture of punching is 1.0mm,
The hole has filtration, dehydration and the effect washed, 5 depth 0.5mm of decorative pattern, and the hole on the stack shell side wall of its middle cylinder body III had
Filter, dehydration and the effect washed.The operation needs by 150 tons of punch presses, stamping die 6 and laterallys secure fixture 7, and its punching is to divide
Duan Chongkong.
To sum up, the manufacture method of the inner cylinder for drum washing machine of the present embodiment may be summarized to be：Stretching → shaping → closing in →
Edge rolling → rush side opening and decorative pattern.
The present embodiment only needs to use particular manufacturing craft in step (1) when inner cylinder for drum washing machine is prepared, and which is whole
It is body formed to only need in fact the first two operation, i.e. stretching and shaping；In addition, the preparation method of the present embodiment only need to close up,
Special equipment is used when edge rolling and side punching and shock wave line.Generally speaking the preparation method of the present embodiment only need to 1 mould, 2
Individual operation and 3 equipment, (protecgulum needs 4 with 3 moulds (protecgulum, bonnet and stack shell), 12 operations of traditional preparation methods
Operation, bonnet need 5 operations, stack shells to need 3 operations) and 4 equipment (stack shell edge rolling, stack shell are hinged, inner core front and rear covers revolve
Riveting, tripod screw are fixed) compare, operation and equipment are greatly reduced, cost of manufacture is dramatically reduced.
Embodiment two
The inner cylinder for drum washing machine of the present embodiment includes protecgulum, stack shell and bonnet, and this three is installed especially by special tool
Standby being integrally formed is structure as a whole, and the manufacture method of concrete shaping includes：
(1) stretch, with 300 tons of hydraulic presses by the circular stainless steel stretched into inner core base substrate, blanking of model STS430-2B
A diameter of 800mm, the thickness of inner core base substrate is 0.4mm, and the technique need to be by special inner cylinder for drum washing machine mould, inner core base
The groove of power supply machine driving is formed on the outer face of body bottom；
(2) shaping, bottom punching, the inner core base substrate that deep-draw is stretched into are shaped to the cylinder I for meeting design specification, cylinder I
Thickness be 0.4mm, and in the bottom punching of cylinder I, the bottom of cylinder I forms hole, and the hole has filters, dehydration and washs
Effect, the step equipment needed thereby is 300 tons of punch presses, it is shaped after the diameter r1 of cylinder I be 400mm, height h1 is
100mm；
(3) close up, closed up at the openend of cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
The dispensing port for putting into for laundry item and taking out, closing in height h2 are 20mm, and closing in width w1 is 50mm；
(4) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process with furling plate round machine, and the radius r2 of edge rolling is
3mm, forms cylinder III, and now, bonnet is formed on the bottom of cylinder III, and middle part forms stack shell, and closing in section forms protecgulum, Jing Guoshou
After mouthful this operation, stack shell is connected by a fillet surface with protecgulum, and the radius of the fillet surface is 6mm；
(5) side opening/shock wave line is rushed, punching and shock wave line on the stack shell side wall of cylinder III, the aperture of punching is 2.0mm,
The hole has filtration, dehydration and the effect washed, decorative pattern depth 0.5mm, and the hole on the stack shell side wall of its middle cylinder body III had
Filter, dehydration and the effect washed.The operation needs by 150 tons of punch presses, stamping dies and laterallys secure fixture, and its punching is segmentation
Punching.
To sum up, the manufacture method of the inner cylinder for drum washing machine of the present embodiment may be summarized to be：Stretching → shaping → closing in →
Edge rolling → rush side opening and decorative pattern.
Embodiment three
The inner cylinder for drum washing machine of the present embodiment includes protecgulum, stack shell and bonnet, and this three is installed especially by special tool
Standby being integrally formed is structure as a whole, and the manufacture method of concrete shaping includes：
(1) stretch, with 300 tons of hydraulic presses by the circular stainless steel stretched into inner core base substrate, blanking of model STS430-2B
A diameter of 900mm, the thickness of inner core base substrate is 0.5mm；
(2) shaping, bottom punching, the inner core base substrate that deep-draw is stretched into are shaped to the cylinder I for meeting design specification, cylinder I
Thickness be 0.5mm, and in the bottom punching of cylinder I, the bottom of cylinder I forms hole, and the hole has filters, dehydration and washs
Effect, the step equipment needed thereby is 300 tons of punch presses, it is shaped after the diameter r1 of cylinder I be 450mm, height h1 is
150mm；
(3) close up, closed up at the openend of cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
The dispensing port for putting into for laundry item and taking out, closing in height h2 are 50mm, and closing in width w1 is 100mm；
(4) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process with furling plate round machine, and the radius r2 of edge rolling is
4.5mm, forms cylinder III, and now, bonnet is formed on the bottom of cylinder III, and middle part forms stack shell, and closing in section forms protecgulum, passes through
After this operation that closes up, stack shell is connected by a fillet surface with protecgulum, and the radius of the fillet surface is 7mm；
(5) side opening/shock wave line is rushed, punching and shock wave line on the stack shell side wall of cylinder III, the aperture of punching is 3.0mm,
The hole has the effect filtered, be dehydrated and wash, decorative pattern depth 2.0mm.The operation is needed by 150 tons of punch presses, stamping die and sides
To stationary fixture, its punching is segmentation punching.
Example IV
The inner cylinder for drum washing machine of the present embodiment includes protecgulum, stack shell and bonnet, and this three is installed especially by special tool
Standby being integrally formed is structure as a whole, and the manufacture method of concrete shaping includes：
(1) stretch, with 400 tons of hydraulic presses by the circular stainless steel stretched into inner core base substrate, blanking of model STS430-2B
A diameter of 1060mm, the thickness of inner core base substrate is 0.6mm；
(2) shaping, bottom punching, the inner core base substrate that deep-draw is stretched into are shaped to the cylinder I for meeting design specification, cylinder I
Thickness be 0.6mm, and in the bottom punching of cylinder I, the hole has dehydration, the effect filtered and wash, and sets needed for the step
Standby is 400 tons of punch presses, it is shaped after the diameter r1 of cylinder I be 500mm, height h1 is 200mm；
(3) close up, closed up at the openend of cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
The dispensing port for putting into for laundry item and taking out, closing in height h2 are 100mm, and closing in width w1 is 150mm；
(4) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process with furling plate round machine, and the radius r2 of edge rolling is
15mm, forms cylinder III, and now, bonnet is formed on the bottom of cylinder III, and middle part forms stack shell, and closing in section forms protecgulum, passes through
After this operation that closes up, stack shell is connected by a fillet surface with protecgulum, and the radius of the fillet surface is 8mm；
(5) punching/shock wave line, punching and shock wave line on the stack shell side wall of cylinder III, the aperture of punching is 3.5mm, should
Hole has dehydration, the effect filtered and wash, decorative pattern depth 3.0mm.The operation is needed by 150 tons of punch presses, stamping die and lateral
Stationary fixture, its punching are segmentation punching.
Embodiment five
The inner cylinder for drum washing machine of the present embodiment includes protecgulum, stack shell and bonnet, and this three is installed especially by special tool
Standby being integrally formed is structure as a whole, and the manufacture method of concrete shaping includes：
(1) stretch, with 300 tons of hydraulic presses by the circular stainless steel stretched into inner core base substrate, blanking of model STS430-2B
A diameter of 800mm, the thickness of inner core base substrate is 0.4mm, and the technique need to be by special inner cylinder for drum washing machine mould, inner core base
The groove of power supply machine driving is formed on the outer face of body bottom；
(2) shaping, bottom punching, the inner core base substrate that deep-draw is stretched into are shaped to the cylinder I for meeting design specification, cylinder I
Thickness be 0.4mm, and in the bottom punching of cylinder I, the bottom of cylinder I forms hole, and the hole has filters, dehydration and washs
Effect, the step equipment needed thereby is 300 tons of punch presses, it is shaped after the diameter r1 of cylinder I be 400mm, height h1 is
100mm；
(3) side opening/shock wave line is rushed, punching and shock wave line on the stack shell side wall of cylinder I, the aperture of punching is 2.0mm, should
Hole has the effect filtered, be dehydrated and wash, decorative pattern depth 0.5mm.The operation is needed by 150 tons of punch presses, stamping die and lateral
Stationary fixture, its punching are segmentation punching.
(4) close up, closed up at the openend of cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
The dispensing port for putting into for laundry item and taking out, closing in height h2 are 20mm, and closing in width w1 is 50mm；
(5) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process with furling plate round machine, and the radius r2 of edge rolling is
3mm, forms cylinder III, and now, bonnet is formed on the bottom of cylinder III, and middle part forms stack shell, and closing in section forms protecgulum, Jing Guoshou
After mouthful this operation, stack shell is connected by a fillet surface with protecgulum, and the radius of the fillet surface is 6mm；
The inner cylinder for drum washing machine of the present embodiment is also structure as a whole, and its manufacture method is existed with one difference of embodiment
In：After inner core base substrate is shaped to cylinder I, in the middle part of sliding channel of cylinder I, punching and shock wave line, are then received again successively
Mouth, edge rolling.That is the manufacture method of the present embodiment may be summarized to be stretching → shaping → rush side opening and decorative pattern → closing in → edge rolling.
Embodiment six
The inner cylinder for drum washing machine of the present embodiment includes protecgulum, stack shell and bonnet, and this three is installed especially by special tool
Standby being integrally formed is structure as a whole, and the manufacture method of concrete shaping includes：
(1) stretch, with 500 tons of hydraulic presses by the circular stainless steel stretched into inner core base substrate, blanking of model STS430-2B
A diameter of 1560mm, the thickness of inner core base substrate is 0.4mm, and the technique need to be by special inner cylinder for drum washing machine mould, inner core
The groove of power supply machine driving is formed on the outer face of base substrate bottom；
(2) shaping, bottom punching, the inner core base substrate that deep-draw is stretched into are shaped to the cylinder I for meeting design specification, cylinder I
Thickness be 0.4mm, and in the bottom punching of cylinder I, the bottom of cylinder I forms hole, and the hole has filters, dehydration and washs
Effect, the step equipment needed thereby is 500 tons of punch presses, it is shaped after the diameter r1 of cylinder I be 600mm, height h1 is
400mm；
(3) side opening/shock wave line is rushed, punching and shock wave line on the stack shell side wall of cylinder I, the aperture of punching is 3.5mm, should
Hole has the effect filtered, be dehydrated and wash, decorative pattern depth 0.5mm.The operation is needed by 150 tons of punch presses, stamping die and lateral
Stationary fixture, its punching are segmentation punching.
(4) close up, closed up at the openend of cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
The dispensing port for putting into for laundry item and taking out, closing in height h2 are 100mm, and closing in width w1 is 150mm；
(5) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process with furling plate round machine, and the radius r2 of edge rolling is
3mm, forms cylinder III, and now, bonnet is formed on the bottom of cylinder III, and middle part forms stack shell, and closing in section forms protecgulum, Jing Guoshou
After mouthful this operation, stack shell is connected by a fillet surface with protecgulum, and the radius of the fillet surface is 6mm；
The inner cylinder for drum washing machine of the present embodiment is also structure as a whole, and its manufacture method is existed with one difference of embodiment
In：After inner core base substrate is shaped to cylinder I, in the middle part of sliding channel of cylinder I, punching and shock wave line, are then received again successively
Mouth, edge rolling.That is the manufacture method of the present embodiment may be summarized to be stretching → shaping → rush side opening and decorative pattern → closing in → edge rolling.
Claims (8)
1. a kind of manufacture method of inner cylinder for drum washing machine, it is characterised in that:
Inner cylinder for drum washing machine, including protecgulum (1), stack shell (2) and bonnet (3), it is characterised in that：The protecgulum (1), stack shell
(2) and bonnet (3) formed integrative-structure；
Which comprises the steps：
(1) stretch, circular sheet material is drawn into into inner core base substrate；
(2) shaping, bottom punching, the inner core base substrate is shaped to the cylinder I for meeting design specification, and in the bottom of cylinder I
Punching；
(3) close up, closed up at the openend of the cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
Dispensing port；After closing in, the stack shell is connected by a fillet surface with protecgulum, and the radius r3 of the fillet surface is more than 5mm；
(4) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process, forms cylinder III, the cylinder III's
Bonnet (3) is formed on bottom, and middle part forms stack shell (2), and closing in section forms protecgulum (1)；
(5) side opening is rushed, the punching on the stack shell side wall of cylinder III；The operation needs by punch press, stamping die and laterallys secure folder
Tool, its punching are segmentation punching.
2. the manufacture method of inner cylinder for drum washing machine according to claim 1, it is characterised in that：The cylinder of the cylinder III
On the wall of body side, also punching has decorative pattern.
3. a kind of manufacture method of inner cylinder for drum washing machine, it is characterised in that：
Inner cylinder for drum washing machine, including protecgulum (1), stack shell (2) and bonnet (3), it is characterised in that：The protecgulum (1), stack shell
(2) and bonnet (3) formed integrative-structure；
Which comprises the steps：
(1) stretch, circular sheet material is drawn into into inner core base substrate；
(2) shaping, bottom punching, the inner core base substrate is shaped to the cylinder I for meeting design specification, and in the bottom of cylinder I
Punching；
(3) side opening is rushed, the punching on the side wall of the cylinder I；The operation needs by punch press, stamping die and laterallys secure folder
Tool, its punching are segmentation punching；
(4) close up, closed up at the openend of the cylinder I with closing-up machine and be shaped to cylinder II, closing in section forms cylinder II's
Dispensing port；
After closing in, the stack shell is connected by a fillet surface with protecgulum, and the radius r3 of the fillet surface is more than 5mm；
(5) edge rolling, the outer wall of the tube port position of cylinder II is outwards carried out edge rolling process, forms cylinder III, the cylinder III's
Bonnet is formed on bottom, and middle part forms stack shell, and closing in section forms protecgulum.
4. the manufacture method of inner cylinder for drum washing machine according to claim 3, it is characterised in that：The side wall of the cylinder I
On also punching have decorative pattern.
5. the manufacture method of the inner cylinder for drum washing machine according to any one of claim 2 to 4, it is characterised in that：It is described
The diameter r1 of cylinder I is 300～600mm, and height h1 is 100～400mm.
6. the manufacture method of the inner cylinder for drum washing machine according to any one of claim 2 to 4, it is characterised in that：It is described
The height h2 of closing in is 5～100mm, and closing in width w1 is 5～150mm.
7. the manufacture method of the inner cylinder for drum washing machine according to any one of claim 2 to 4, it is characterised in that：It is described
The radius r2 of edge rolling is 3～15mm.
8. the manufacture method of inner cylinder for drum washing machine according to claim 1 and 2, it is characterised in that：The cylinder III's
On the wall of stack shell side, the aperture of punching is 1.0～3.5mm, the deep 0.5～3.0mm of decorative pattern, or punching on the side wall of the cylinder I
Aperture is 1.0～3.5mm, the deep 0.5～3.0mm of decorative pattern.
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|---|---|---|---|---|
| CN106544819A (en) * | 2015-09-17 | 2017-03-29 | 青岛海尔洗衣机有限公司 | A kind of washing machine inner tub and production technology and washing machine |
| CN106424315A (en) * | 2016-12-02 | 2017-02-22 | 江苏尚诚精密模具科技有限公司 | Punching machine |
| CN106702670A (en) * | 2016-12-28 | 2017-05-24 | 安徽协诚实业股份有限公司 | Inner-barrel back cover for dry washers and manufacturing method of inner-barrel back cover |
| CN110014098A (en) * | 2019-04-30 | 2019-07-16 | 青岛万沅金属制品有限公司 | Washing machine drum processing technology |
| CN110699922A (en) * | 2019-10-17 | 2020-01-17 | 苏州尼昂科技有限公司 | Inner barrel of drum washing machine and manufacturing method thereof |
| CN111790813B (en) * | 2020-07-19 | 2021-07-09 | 苏州泽宇科技有限公司 | Metal forming die system and metal forming process thereof |
| CN114178796B (en) * | 2021-12-27 | 2024-01-30 | 无锡市正红车厢有限公司 | Method for processing roller hole for roller washing machine |
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