CN107521081A - The forming method of integral cylinder - Google Patents
The forming method of integral cylinder Download PDFInfo
- Publication number
- CN107521081A CN107521081A CN201710610175.8A CN201710610175A CN107521081A CN 107521081 A CN107521081 A CN 107521081A CN 201710610175 A CN201710610175 A CN 201710610175A CN 107521081 A CN107521081 A CN 107521081A
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- China
- Prior art keywords
- mould
- integral cylinder
- stripper plate
- sheet forming
- finished product
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/18—Thermoforming apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/264—Auxiliary operations prior to the thermoforming operation, e.g. cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/44—Removing or ejecting moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/769—Sanitary equipment
- B29L2031/7692—Baths
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of forming method of integral cylinder, including：A, sheet forming is pre-processed, so that the middle part of sheet forming raises up, so as to form raised bubbles；B, mould is risen to and forms sealing space with raised bubbles, sealing space vacuumized so as to form negative pressure, the raised bubbles by negative-pressure adsorption in die surface, so as to form integral cylinder finished product；The lower end of the mould is provided with positioning shirt rim, and the stripper plate of independent driving lifting is provided between the positioning shirt rim and sheet forming；C, will stop declining after mould falling head L, at the same time, the stripper plate declines with the decline of mould, when mould stops declining, the stripper plate rise height H, and driving integral cylinder finished product to go up simultaneously, the mould and stripper plate are as loop cycle, until integral cylinder finished product and mould separating.Using the efficiency high of the forming method processing bathtub of the present invention, and integral cylinder finished product can be smoothly stripped.
Description
Technical field
The present invention relates to bathtub processing technique field, more particularly to the forming method of integral cylinder.
Background technology
Because acryl plates have excellent appearance finish, its wearability is equivalent to aluminium, it is not easy to snag, is easy to protect
It is clean, and surprisingly abraded in the event of appearance, as long as using polishing agent, you can quickly and easily finishing is restored, so prior art
Typically use moulding material of the acryl plates as bathtub.
For the ease of the processing of bathtub, prior art typically processes bathtub using the processing mode of docking cylinder, will bathe
The shell and inner bag of cylinder carry out thermoplastic shaping respectively, and the shell and inner bag after shaping are docked again, and prior art is typically adopted
It is that slitless connection technology sutures shell and inner bag, but multiple work people is needed during shell and inner bag are molded
Member is shifted shell and inner bag, and factory needs to pay higher cost of labor, and the worker of bathtub production now is more difficult
Recruitment, in addition, process bathtub using this mode, its processing technology is complicated, it is necessary to more process can complete the shaping of bathtub,
So as to increase processing cost.
Before docking cylinder occurs, the moulding process of integral cylinder was also occurred, but uses the integral cylinder of prior art
It is difficult to complete the demoulding of bathtub because the shaping area of integral cylinder is larger, after shaping, it is necessary to which more individuals grasp simultaneously during moulding process
Work can be completed to be stripped, and quality problems easily occurs in the integral cylinder after shaping, now need to carry out follow-up repairing processing, so
Prior art is general to complete the production of bathtub using the docking cylinder technique for being easier to processing, but docks the processing technology of cylinder again
Above mentioned problem be present.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of forming method of integral cylinder, solve integral cylinder shaping
The problem of difficult is stripped in technique.
In order to solve the above-mentioned technical problem, the invention provides a kind of forming method of integral cylinder, including：
A, sheet forming is pre-processed, so that the middle part of sheet forming raises up, so as to form raised bubbles；
B, mould is risen to and forms sealing space with raised bubbles, sealing space vacuumized so as to form negative pressure, the projection
Bubble by negative-pressure adsorption in die surface, so as to form integral cylinder finished product, during integral cylinder finished product is molded, the shaping
The edge of sheet material is pressed on positioning table；
The lower end of the mould is provided with positioning shirt rim, and the de- of independent driving lifting is provided between the positioning shirt rim and sheet forming
Template, in raised bubbles absorption during die surface, the stripper plate is close to positioning shirt rim；
C, will stop declining after mould falling head L, at the same time, the stripper plate declines with the decline of mould, works as mould
When tool stops declining, the stripper plate rise height H, and drive integral cylinder finished product to go up simultaneously, the mould and stripper plate with
This is loop cycle, until integral cylinder finished product and mould separating.
As the improvement of such scheme, the step A includes：
A1, the surface that the edge of sheet forming is pressed on to positioning table；
A2, sheet forming is transferred to heater, sofening treatment is carried out to sheet forming by heater；
A3, the sheet forming for dropping to the vacuum tank of under shed after softening surface, so that vacuum tank and sheet forming are formed
Sealed chamber, sealed chamber is vacuumized, so that sheet forming is raised to vacuum tank direction, so as to form raised bubbles.
As the improvement of such scheme, two opposite sides of the heater are equipped with switching door, and heater pair
The both sides for answering switching door are respectively the first shaping area and the second shaping area, are provided with and drive in first shaping area and the second shaping area
Dynamic positioning table is transferred to the horizontal drive mechanism in heater.
As the improvement of such scheme, in step, the peak of raised bubbles is detected by photosensitive sensors, works as light sensation
After sensor detects that the peak of raised bubbles reaches setting value, stop the rising of raised bubbles.
As the improvement of such scheme, sealing space is formed with sheet forming when mould rises to, the positioning shirt rim is high
In positioning table, and the edge for positioning shirt rim is close to raised bubbles.
As the improvement of such scheme, in step C, the mould falling head is 0 ＜ L≤100mm, and the mould stops
Only fall time is 0.5s≤t≤3s.
As the improvement of such scheme, in step C, the rise height H of the stripper plate is to form integral cylinder in step B
Height after finished product residing for stripper plate.
As the improvement of such scheme, the upper surface of the stripper plate is surrounded by raised screens bar around mould；
Or the upper surface of the stripper plate is provided with raised screens bar in the both sides in die length direction.
As the improvement of such scheme, the stripper plate is driven by elevating mechanism and lifted, the lift drive mechanism bag
Drive component and multiple guide rods are included, the upper end of the guide rod is fixedly installed on stripper plate through after positioning shirt rim, described
Drive component driving guide rod lifting.
As the improvement of such scheme, the positioning shirt rim is provided with the counter sink passed through for guide rod, the guide rod position
The sealing ring being adapted with the blind hole portion of counter sink is installed at the lower surface of stripper plate.
Implement embodiments of the invention, have the advantages that：
1st, sheet forming is first carried out pretreatment and forms raised bubbles by the present invention, then by negative-pressure adsorption so that raised bubbles are attached to mould
Have surface, be then stripped again, during the demoulding, mould and stripper plate are first declined into certain height, initially declined in mould
Cheng Zhong, integral cylinder finished product will necessarily be fallen into downwardly together due to absorption affinity with mould, in order to prevent integral cylinder from sinking together therewith
Deform, the present invention gos up the stripper plate for declining certain altitude certain altitude again, due to stripper plate located at positioning shirt rim with
Between acrylic board, so while stripper plate gos up, power that sheet forming can also be pushed up upwards by stripper plate, then mould and
Stripper plate is according to this actuation cycle, until completing stripping action；
2nd, the present invention is declined with interrupted type of drive driving mould, and the stripper plate for combining independent driving lifting strengthens mould and one
The disengaging of body cylinder finished product, ensure being stripped without deformation for integral cylinder finished product, so as to improve the quality of integral cylinder production；
3rd, cylinder is integrated using the product that processes of method of the present invention, relative to the production method of the docking cylinder of prior art,
Bathtub process produced by the invention is simple, and production efficiency is high, and cost of labor is greatly reduced.
Brief description of the drawings
Fig. 1 is the flow chart of the integral cylinder forming method of the present invention；
Fig. 2 is the flow chart of sheet forming pretreatment of the present invention；
Fig. 3 is the structural representation for the equipment for being applied to the integral cylinder forming method of the present invention；
Fig. 4 is heater of the present invention and the layout of shaping area；
Fig. 5 is the structural representation of the integral cylinder finished product of the present invention, mould and stripper plate；
Fig. 6 is the structural representation of another visions of Fig. 5；
Fig. 7 is that Fig. 5 removes the structural representation after integral cylinder finished product；
Fig. 8 is the partial enlarged drawing at A in Fig. 7.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.Only this is stated, appearance in the text of the invention or the side such as the up, down, left, right, before and after that will appear from, inside and outside
Position word, only on the basis of the accompanying drawing of the present invention, it is not the specific restriction to the present invention.
Referring to accompanying drawing 1 to accompanying drawing 8, the invention discloses a kind of forming method of integral cylinder, including following specific steps.
S1, sheet forming pre-processed, so that the middle part of sheet forming raises up, so as to form projection
Then bubble, the pretreatment carry out negative-pressure adsorption into raised bubbles first to carry out heating and softening processing.For the ease of following profiled sheetings
Material is adsorbed in die surface, is initially formed raised bubbles, raised bubbles is covered mould again and be easy to adsorb.
Wherein, the step S1 specifically includes following three steps.
S11, the surface that the edge of sheet forming is pressed on to positioning table 1.
The positioning table 1 is the table top set around sheet forming, and the periphery of positioning table 1 is provided with for depressing sheet forming
Press mechanism, press mechanism can use the driving such as cylinder, motor, be not described in detail herein.It should be noted that until one
Before the shaping of cylinder finished product is taken out, the sheet forming is positioned on positioning table 1 always.
S12, sheet forming is transferred to heater 2, sofening treatment, warp are carried out to sheet forming by heater 2
The sheet material crossed after softening is easy to the shaping of sheet forming, and wherein heater 2 can be the equipment such as the baking box that prior art uses.
S13, the sheet forming for dropping to the vacuum tank 3 of under shed after softening surface, so that vacuum tank 3 and profiled sheeting
Material forms sealed chamber, and sealed chamber is vacuumized, so that sheet forming is raised to the direction of vacuum tank 3, so as to form raised bubbles.
In order to ensure that the height of raised bubbles reaches production requirement, the present invention passes through photosensitive sensors（Not shown in accompanying drawing）Detect raised bubbles
Peak, after photosensitive sensors detect that the peak of raised bubbles reaches setting value, stop the rising of raised bubbles, that is, complete
The shaping of raised bubbles.
In addition, in order to save space and improve operating efficiency, two opposite sides of heater 2 of the present invention are all provided with
There is a switching door, and the both sides of the corresponding switching door of heater 2 are respectively the first shaping area 1a and the second shaping area 1b, described first
The horizontal drive mechanism that driving positioning table 1 is transferred in heater 2 is provided with shaping area 1a and the second shaping area 1b（In accompanying drawing
Do not show）, the horizontal drive mechanism can be ball screw assembly, chain-drive mechanism etc..During processing, first to one of shaping
The sheet forming in area is heated, and is completed the sheet forming after softening and is carried out processing and forming, in the same of sheet forming processing and forming
When, the sheet forming in another shaping area can be heated, the present invention will stagger the heat time, so as to improve work effect
Rate, and the space of a heater 2 can be saved, the space expenses of factory are saved, can also reduce the cost of product.
S2, by mould 4 rise to raised bubbles formed sealing space, sealing space is vacuumized so as to form negative pressure, institute
Raised bubbles are stated by negative-pressure adsorption on the surface of mould 4, so as to form integral cylinder finished product 5, in the process of integral cylinder finished product 5 shaping
In, the edge of the sheet forming is pressed on positioning table 1.In order to realize the shaping of integral cylinder finished product, arranged on the mould
Multiple vacuum holes, vacuum device are vacuumized by vacuum hole to sealing space, so as to realize the adsorption forming of integral cylinder, herein
Do not introduce specifically.
In order to preferably realize the sealing between mould 4 and sheet forming and the demoulding after formed product, the present invention exists
The lower end of the mould 4 is provided with positioning shirt rim 41, and independent driving lifting is provided between the positioning shirt rim 41 and sheet forming
Stripper plate 6, in raised bubbles absorption during the surface of mould 4, the stripper plate 6 is close to positioning shirt rim 41, that is, after being molded
Sheet forming, stripper plate 6 and the positioning three of shirt rim 41 be from top to bottom close to successively, now, three is not easy because empty before
Gap produces hollow bubble, so that sheet forming is more preferably closely adsorbed on mould 4.
It should be noted that forming sealing space with sheet forming when mould 4 rises to, the positioning shirt rim 41 is higher than fixed
Position platform 1 and position shirt rim 41 edge be close to raised bubbles, at this point it is possible to ensure that the sealing of sealing space is good, work as positioning
When the edge of shirt rim 41 is close to raised bubbles, the space between the positioning shirt rim 41 and raised bubbles is favorable sealing property
Sealing space.
S3, it will stop declining after the falling head L of mould 4, at the same time, under the stripper plate 6 is with the decline of mould 4
Drop, when mould 4 stops declining, the rise height H of stripper plate 6, and drive integral cylinder finished product 5 to go up simultaneously, the mould 4
With stripper plate 6 as loop cycle, until integral cylinder finished product 5 departs from mould 4.
In order to be further ensured that being stripped without deformation for integral cylinder finished product 5, the present invention sets the falling head L of mould 4
For：0 ＜ L≤100mm, the mould 4 is stopped into fall time t and is arranged to：0.5s≤t≤3s.During using this altitude range value,
Mould 4 cannot be easily caused deformation when declining, and demoulding efficiency is relatively reasonable, when beyond this scope, easily cause integral cylinder into
The deformation of product 5, when less than this scope, its demoulding efficiency is too low, is not easy to produce in enormous quantities, in addition, the present invention stops mould 4
When the time only declined is arranged to this scope, time control that the stripper plate 6 gos up it is relatively good.It should be noted that this
Height L corresponding to each cycle that the forming method of invention declines in mould can be identical value, or fall before identical
Height, then slowly become big again, or be height L corresponding to each cycle that mould declines slowly to become big value etc..
Further, the rise height H of the stripper plate 6 is to be formed in step S2 after integral cylinder finished product 5 residing for stripper plate 6
Height, i.e., stripper plate 6 every time go up to shape after and be stripped before height, namely go up to decline before initial position, this
When can ensure integral cylinder finished product 5 within each cycle return to the demoulding before position, more conducively realize integral cylinder without deformation
The height that stripper plate 6 gos up can also somewhat be reduced a little or somewhat improved a little by the demoulding, certainly, the present invention, as long as not
Influence the normal demoulding.
It should be noted that the absorption of its side wall is not only after integral cylinder shaping in the side wall of mould 4, the inwall of integral cylinder
It is absorption caving in pond 42 in mould 4, the part of the formation of pond 42 of caving in is integrated the pond of cylinder, and the sump area of bathtub
It is larger, it is especially big so as to adsorb the area of the sheet forming on mould 4, so, according to directly individually drive in the prior art
Moving mold 4, which declines, realizes the demoulding, or drives separation to realize the demoulding toward opposite direction on mould 4 and sheet forming simultaneously, then must
So the integral cylinder finished product 5 after the demoulding can be caused to damage, such as form fold or face of caving in etc., at this time, it may be necessary to carry out follow-up
Working process can solve this problem, even across subsequent treatment, the quality of integral cylinder finished product 5 is also affected.
And mould 4 and stripper plate 6 are first declined certain altitude by the integral cylinder finished product 5 of the present invention during the demoulding, this
When, during mould 4 initially declines, integral cylinder finished product 5 will necessarily be fallen into downwardly together due to absorption affinity with mould 4, in order to
Prevent integral cylinder sink together therewith from deforming, the present invention will decline the stripper plate 6 and rise certain altitude of certain altitude, by
In stripper plate 6 between positioning shirt rim 41 and acrylic board, so while stripper plate 6 gos up, sheet forming also can be by
The power that stripper plate 6 pushes up upwards, then mould 4 and stripper plate 6 are according to this actuation cycle, until completing stripping action.
In addition, the present invention is surrounded by raised screens bar in the upper surface of the stripper plate 6 around mould 4；It is or described
The upper surface of stripper plate 6 is provided with raised screens bar 61 in the both sides of the length direction of mould 4.When the upper surface setting of stripper plate 6 is convex
Rise screens bar 61 when, in the process of sheet forming adsorption forming, sheet forming be located at raised screens bar 61 position formed and
Its profile identical lug boss 51, and during the demoulding, due to the screens of raised screens bar 61, positioned at raised screens bar 61
The sheet forming of periphery will not be inwardly indented, the demoulding of more conducively integral cylinder finished product 5.
It should be noted that stripper plate 6 of the present invention is that lifting is operated alone by lift drive mechanism, specifically,
The stripper plate 6 is driven by elevating mechanism and lifted, and the lift drive mechanism includes drive component 81 and multiple guide rods 82,
The upper end of the guide rod 82 is fixedly installed on stripper plate 6 through after positioning shirt rim 41, and the driving of drive component 81 is oriented to
Bar 82 lifts.Wherein, the guide rod 82 is preferably the sleeving connecting rod composition of grafting above and below more piece, can be according to the type of die assembly
Number selection using adaptable radical sleeving connecting rod（It is relatively small such as relatively large die assembly is from 3 or 4
From 2）, the rapid installation of guide rod is realized, and the diversified performance of guide rod can be realized.Wherein, the driving group
Part 81 preferably corresponds the driving driving lifting of guide rod 82 using oil cylinder.
Further, the positioning shirt rim 41 is provided with the counter sink 43 passed through for guide rod 82, and the guide rod 82 is located at
The sealing ring being adapted with the blind hole portion of counter sink is installed at the lower surface of stripper plate 6（Do not shown in accompanying drawing）, it is of the invention logical
Cross and set counter sink 43 and sealing ring to strengthen the sealing of sealing space in positioning shirt rim 41, ensure the shaping of integral cylinder.
It is also possible to further protect the integral cylinder of shaping in the demoulding from damage by electro connecting pressure gauge
Bad, the electro connecting pressure gauge is used for the driving pressure for detecting lift drive mechanism, and controls the drive of the lift drive mechanism
Dynamic pressure is no more than 6Mpa, wherein, the driving pressure of second elevating mechanism is no more than the maximum that 6Mpa refers to above-mentioned oil cylinder
For the setting value of oil liquid pressure within 6Mpa, the electro connecting pressure gauge controls the driving pressure of second elevating mechanism most
Big value is to carry out selection as the case may be, but is tested and found according to inventor, and pipe mold selection is not how, is desirable to
It is enough to include selecting within 6Mpa in 6Mpa, such as it be 6Mpa that can select the maximum of driving pressure, can also select driving pressure
The maximum of power is 4Mpa.
Specifically, the electro connecting pressure gauge detects the oil liquid pressure of above-mentioned oil cylinder, namely the sealing ring pushes blind hole
Portion（Die assembly）Pressure, when electro connecting pressure gauge detects that the pressure value of oil cylinder reaches 6Mpa, set in spite of reaching
Fixed height value, is required to stop the further driving of oil cylinder, and the present invention prevents that oil cylinder working-pressure is excessive by electro connecting pressure gauge
The integral cylinder and mould of drop-down damage shaping, furthermore it is also possible to ensure the sealing of sealing ring, and extend above-mentioned sealing ring
Life-span.Wherein, the pressure value of oil cylinder is preferably set to 4Mpa, and the pressure set points of oil cylinder can be adjusted according to the hardness of mould
Whole, the electro connecting pressure gauge is the resistance to electro connecting pressure gauge that shakes, because the former operating frequency of the present invention is higher, in general
Electro connecting pressure gauge is easy to damage, and can improve its service life using the resistance to electro connecting pressure gauge that shakes, and the present invention is using resistance to
Shake electro connecting pressure gauge series circuit, avoids causing burn failure because damaging the resistance to electro connecting pressure gauge that shakes of a series connection, can be real
Existing duplicate protection mould safety.
It should be noted that for the ease of the demoulding of integral cylinder finished product, sheet forming is positioned at before positioning table, it is necessary to
The smearing release agent on mould, in addition, before the demoulding of integral cylinder sheet material is carried out, first integral cylinder sheet material is cooled down, wherein
Releasing agent can be aqueous release agent, oil-based release agent etc., according to different mold materials from the releasing agent being adapted, this portion
Divide and be not described in detail.
In addition, the raw material that bathtub production uses are usually acryl plates, so heretofore described sheet forming one
As select acryl plates, the former of the present invention can be used for other composite boards or other and can be used for certainly
The material of bathtub is molded, one kind that acryl plates are intended only as sheet forming preferably selects mode.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. the forming method of integral cylinder, it is characterised in that including：
A, sheet forming is pre-processed, so that the middle part of sheet forming raises up, so as to form raised bubbles；
B, mould is risen to and forms sealing space with raised bubbles, sealing space vacuumized so as to form negative pressure, the projection
Bubble by negative-pressure adsorption in die surface, so as to form integral cylinder finished product, during integral cylinder finished product is molded, the shaping
The edge of sheet material is pressed on positioning table；
The lower end of the mould is provided with positioning shirt rim, and the de- of independent driving lifting is provided between the positioning shirt rim and sheet forming
Template, in raised bubbles absorption during die surface, the stripper plate is close to positioning shirt rim；
C, will stop declining after mould falling head L, at the same time, the stripper plate declines with the decline of mould, works as mould
When tool stops declining, the stripper plate rise height H, and drive integral cylinder finished product to go up simultaneously, the mould and stripper plate with
This is loop cycle, until integral cylinder finished product and mould separating.
2. the former of integral cylinder according to claim 1, it is characterised in that the step A includes：
A1, the surface that the edge of sheet forming is pressed on to positioning table；
A2, sheet forming is transferred to heater, sofening treatment is carried out to sheet forming by heater；
A3, the sheet forming for dropping to the vacuum tank of under shed after softening surface, so that vacuum tank and sheet forming are formed
Sealed chamber, sealed chamber is vacuumized, so that sheet forming is raised to vacuum tank direction, so as to form raised bubbles.
3. the former of integral cylinder according to claim 2, it is characterised in that two opposite sides of the heater
It is equipped with switching door, and it is respectively the first shaping area and the second shaping area that heater, which corresponds to the both sides of switching door, described first
The horizontal drive mechanism that driving positioning table is transferred in heater is provided with shaping area and the second shaping area.
4. the former of the integral cylinder according to any one of claims 1 to 3, it is characterised in that in step, pass through
Photosensitive sensors detect the peak of raised bubbles, after photosensitive sensors detect that the peak of raised bubbles reaches setting value, stop
The only rising of raised bubbles.
5. the former of integral cylinder according to claim 1, it is characterised in that when mould rises to and sheet forming shape
Into sealing space, the positioning shirt rim is higher than positioning table, and the edge for positioning shirt rim is close to raised bubbles.
6. the former of integral cylinder according to claim 1, it is characterised in that in step C, the mould declines high
Spend for 0 ＜ L≤100mm, it is 0.5s≤t≤3s that the mould, which stops fall time,.
7. the former of the integral cylinder according to claim 1 or 6, it is characterised in that in step C, the stripper plate
Rise height H be that the height after integral cylinder finished product residing for stripper plate is formed in step B.
8. the former of integral cylinder according to claim 1, it is characterised in that the upper surface of the stripper plate is around mould
Be surrounded by raised screens bar；
Or the upper surface of the stripper plate is provided with raised screens bar in the both sides in die length direction.
9. the former of integral cylinder according to claim 1, it is characterised in that the stripper plate is driven by elevating mechanism
Dynamic lifting, the lift drive mechanism include drive component and multiple guide rods, and the upper end of the guide rod passes through positioning shirt rim
After be fixedly installed on stripper plate, drive component driving guide rod lifting.
10. the former of integral cylinder according to claim 9, it is characterised in that the positioning shirt rim is provided with for being oriented to
The counter sink that bar passes through, the guide rod be located at the lower surface of stripper plate be provided be adapted with the blind hole portion of counter sink it is close
Seal.
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| CN201710610175.8A CN107521081A (en) | 2017-07-25 | 2017-07-25 | The forming method of integral cylinder |
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| CN201710610175.8A CN107521081A (en) | 2017-07-25 | 2017-07-25 | The forming method of integral cylinder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995187A (en) * | 2018-09-10 | 2018-12-14 | 中山市达伊姆设备科技有限公司 | A kind of bathtub manufacturing line |
| CN109178459A (en) * | 2018-10-29 | 2019-01-11 | 王荣涛 | Special-shaped film forming seals integrated packing machine |
| CN111703057A (en) * | 2020-05-22 | 2020-09-25 | 麦华(浙江)智能家居有限公司 | Manufacturing process of bathtub made of mixed materials |
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| CN109178459A (en) * | 2018-10-29 | 2019-01-11 | 王荣涛 | Special-shaped film forming seals integrated packing machine |
| CN111703057A (en) * | 2020-05-22 | 2020-09-25 | 麦华(浙江)智能家居有限公司 | Manufacturing process of bathtub made of mixed materials |
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Address after: 528100 No. 3, South District, man Jiang Industrial Park, Nanshan Town, Sanshui District, Foshan, Guangdong Applicant after: Guangdong lohua home Co., Ltd. Address before: 528100 No. 3, South District, man Jiang Industrial Park, Nanshan Town, Sanshui District, Foshan, Guangdong Applicant before: Foshan Lehua Hengye Sanitary Ware Co. Ltd. |
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Application publication date: 20171229 |