CN109732997A - A kind of paper cap forming method - Google Patents
A kind of paper cap forming method Download PDFInfo
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- CN109732997A CN109732997A CN201910169714.8A CN201910169714A CN109732997A CN 109732997 A CN109732997 A CN 109732997A CN 201910169714 A CN201910169714 A CN 201910169714A CN 109732997 A CN109732997 A CN 109732997A
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Abstract
The invention discloses a kind of paper cap forming method, step 1: the scraps of paper to be processed are subjected to surface and are oiled；Step 2: flanging is carried out to the scraps of paper, the scraps of paper are processed into the cylindricality paper cap of a side opening；Step 3: primary heating is carried out to paper cap, softens the film on paper cap surface；Step 4: a nest side is carried out to paper cap, by the inside preliminary bending of paper cap side wall lower edge；Step 5: reheating is carried out to paper cap, softens the film on paper cap surface；Step 6: carrying out secondary nest side to paper cap, and paper cap side wall lower edge is inwardly continued bending in place；Step 7: compacting sizing is carried out to paper cap inside.This method is by oiling to the scraps of paper, in pre-flanging operation with more smooth molding effect, a possibility that reducing the burn failure scraps of paper, is also beneficial to that scraps of paper periphery is good to squeeze the side wall for being folded into paper cap；By being carried out in two steps nest side, it is ensured that nest side quality, the film in paper cap well softened after can better bending forming, ensure that the yield rate of processing.
Description
Technical field
The present invention relates to a kind of processing methods, more particularly, to a kind of paper cap forming method.
Background technique
For catering trade, using dixie cup, perhaps paper bowl contains drink and food and dixie cup or paper bowl can match
The lid of one plastics is carried out using convenient for the use such as being kept the temperature, being packaged, store to drink and food.But with everybody
The raising of environmental consciousness, plastic closure is gradually substituted, and substitute is exactly more environmentally-friendly paper cap.Currently, for paper
The processing equipment of lid is also less, for the processing of paper cap, also lacks more efficient processing method, if passing through multiple stations
Multiple staff carry out molding step by step, during which paper cap transmission efficiency is lower, manual operation bring error rate
Influence whether the quality of product processing.And during to scraps of paper machine-shaping is cylindricality paper cap, good process can
Effectively improve the quality of finished product.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of the prior art and provide a kind of paper cap forming method, can be orderly by paper
Piece is processed into paper cap, can guarantee yield rate.
The invention adopts the following technical scheme: a kind of paper cap forming method, comprising the following steps:
Step 1: the scraps of paper to be processed are subjected to surface and are oiled；
Step 2: flanging is carried out to the scraps of paper, the scraps of paper are processed into the cylindricality paper cap of a side opening；
Step 3: primary heating is carried out to paper cap, softens the film on paper cap surface；
Step 4: a nest side is carried out to paper cap, by the inside preliminary bending of paper cap side wall lower edge；
Step 5: reheating is carried out to paper cap, softens the film on paper cap surface；
Step 6: carrying out secondary nest side to paper cap, and paper cap side wall lower edge is inwardly continued bending in place；
Step 7: compacting sizing is carried out to paper cap inside.
As an improvement also having step A between step 2 and step 3, step A is to carry out to the paper cap of step 2
Precompressed sizing.
As an improvement also having step B between step 6 and step 7, step B is on the inside of the paper cap to step 6
Carry out annular knurl and pre-compacted.
As an improvement paper cap forming method is realized using paper cap shaping mechanism, paper cap shaping mechanism includes that rotation is set
The conveying rotating disc set, the scraps of paper conveying mechanism for positioning paper cap delivery mold that paper cap conveyed, conveying the scraps of paper,
The cylindrical paper cap formed after the flanging mold of cylindrical paper cap, conduplication side mold flanging is formed to scraps of paper progress flanging to carry out in advance
The pre-pressing die of repoussage type heats the two groups of heating mechanisms softened to paper cap, bends inwards to paper cap progress lower sidewall
Two groups of nest side modes tool, the paper cap side wall to bend inwards is carried out external annular knurl and be compacted annular knurl mold, paper cap is pressed
The shaper carried out shaping in fact, the output mechanism conveyed outward to paper cap, paper cap delivery mold is multiple and setting is conveying
On the circumferencial direction of turntable, flanging mold, pre-pressing die, one group of heating mechanism, one group of nest side mode tool, another group of heating mechanism,
Another group of nest side mode tool, annular knurl mold, shaper and output mechanism are sequentially arranged simultaneously below the circumferencial direction of conveying rotating disc
Corresponding with the parking station of paper cap delivery mold of top, scraps of paper conveying mechanism is set to the side of flanging mold, and the scraps of paper are defeated
Send the oil-adding mechanism for being provided at mechanism and oiling to the scraps of paper.
As an improvement paper cap delivery mold includes fixed mould body and pushing material component, the lower part of fixed mould body is set
The cylindricality die cavity for accommodating paper cap is set, pushing material component protrudes into cylindricality die cavity from the top of fixed mould body and can be along axial work
It is dynamic, channel is set on pushing material component and is connect with external air suction mechanism for positioning to be sucked to paper cap.
As an improvement pushing material component includes push plate interconnected and guiding axis, push plate is cylindrical and is contained in column
In shape die cavity, it is adapted with the section of cylindricality die cavity for contradicting paper cap, guiding axis is arranged in fixed mould body and carries out axially
Activity, channel are axially arranged along guiding axis and are connected to one end of push plate.
As an improvement nest side mode tool includes the pre- pressing mold in nest bottom and nest bed die seat coaxially set gradually from inside to outside,
Nest bed die seat tool has for the annular groove to paper cap side wall nest bottom；When paper cap delivery mold and nest side mode tool work relatively
When, the pre- pressing mold in nest bottom and nest bed die seat are successively cooperated with paper cap delivery mold by driving part, are supported by the pre- pressing mold in nest bottom
Touching paper cap bottom is limited, and is contradicted paper cap side wall by the annular groove of nest bed die seat and is carried out the nest bottom that bends inwards to side wall.
As an improvement being provided with the first elastic component between the pre- pressing mold in nest bottom and nest bed die seat, nest bed die seat is being advanced
When by the first pre- pressing mold synchronous movement in resilient element urges nest bottom, after when nest bottom, pre- pressing mold contradicts paper cap bottom, nest bed die seat after
Continue into when compress the first elastic component.
As an improvement flanging mold includes the flanging stent and movable mold group of coaxial arrangement, flanging fixing mould
Have one axially through cylindricality go out die hole, the end periphery that cylindricality goes out die hole towards movable mold group has angularly disposed guidance
Wall；Movable mold group includes precompressed outer ring, the pre- pressing mold of flanging and the folding bed die that coaxial ecto-entad is set gradually, precompressed outer ring, folding
The pre- pressing mold in side and folding bed die are successively cooperated with flanging stent by driving part, the end of precompressed outer ring and flanging stent
Face contact cooperation for precompressed position to the flanging scraps of paper, the pre- pressing mold of flanging be adapted with guiding wall and when being engaged be used for pair
Gradient is folded in advance to the flanging scraps of paper, and folding bed die goes out die hole with cylindricality and is adapted and when going out die hole push towards cylindricality for inciting somebody to action
Go out in die hole to be shaped to cylindrical paper cap in cylindricality to the flanging scraps of paper；Folding bed die is released paper cap when cylindricality goes out die hole upwards by paper
The paper cap delivery mold that lid is pushed into top is positioned.
As an improvement precompressed outer ring and the pre- pressing mold of flanging synchronize promotion, precompressed outer ring by a precompressed mandril
And both pre- pressing molds of flanging are provided with elastomeric element between precompressed mandril, precompressed outer ring and the pre- pressing mold of flanging rely on elastomeric element
Elasticity contradicted at flanging stent end face and guiding wall respectively；When precompressed outer ring and flanging stent end face contradict, in advance
The bar that bears down on one is continued on the pre- pressing mold of flanging against guiding wall；The front end of precompressed mandril is provided with precompressed arrangement frame, precompressed arrangement
Frame includes top plate, inner pressure ring and outer press ring, and top plate is set to the end of precompressed mandril, and inner pressure ring and outer press ring are respectively arranged at top
The inner side and outer side of disk；Outer press ring carries out upper limit to precompressed outer ring by step, and elasticity is arranged between precompressed outer ring and top plate
Component；Inner pressure ring carries out upper limit by the pre- pressing mold of step conduplication side, and elastomeric element is arranged between the pre- pressing mold of flanging and top plate.
Beneficial effects of the present invention: this method is conducive to tool when carrying out pre-flanging operation to it by oiling to the scraps of paper
There is more smooth molding effect, when reducing mold to the scraps of paper extrusion forming a possibility that damage scraps of paper, is also beneficial to scraps of paper periphery
It is good to squeeze the side wall for being folded into paper cap；The operation on nest side is divided into two steps to realize, i.e., step 3 and step 4 is primary
Heating and nest side, enable the inside preliminary bending of paper cap side wall lower edge to a certain extent, can be the half of final nest side position, then
By the reheating and nest side of step 5 and step 6, then in place paper cap nest side, the purpose so operated is to ensure that nest side
Quality, the film in paper cap well softened after can better bending forming, the side wall for avoiding disposable nest side from being likely to occur becomes
Shape, to ensure that the yield rate of processing；The paper cap quality of such machine-shaping is preferable, and good appearance zero defect can more obtain
The approval of sellers and user and like, the case where paper cap is deformed is less prone in process, improves production
Efficiency and yield rate, reduce cost.
Detailed description of the invention
Fig. 1 is the schematic perspective view of paper cap shaping mechanism used in the present invention front observation.
Fig. 2 is the schematic perspective view of paper cap shaping mechanism overleaf observing used in the present invention.
Fig. 3 is the nest side mode tool of paper cap shaping mechanism used in the present invention and cuing open for the longitudinal cross-section of paper cap delivery mold
Depending on structural schematic diagram.
Fig. 4 is the schematic enlarged-scale view in Fig. 3 at M.
Fig. 5 is the schematic cross-sectional view of the longitudinal cross-section of the flanging mold of paper cap shaping mechanism used in the present invention.
Fig. 6 is the schematic enlarged-scale view in Fig. 5 at N.
Fig. 7 is the schematic perspective view of the heating mechanism of paper cap shaping mechanism used in the present invention.
Fig. 8 is the stereochemical structure signal of the shaper or pre-pressing die of paper cap shaping mechanism used in the present invention
Figure.
Fig. 9 is the schematic cross-sectional view of the longitudinal cross-section of the annular knurl mold of paper cap shaping mechanism used in the present invention.
Figure 10 be the paper cap flanging processed of the present invention after, the sectional structure of longitudinal cross-section behind nest side, after final molding
Schematic diagram.
Specific embodiment
It elaborates below in conjunction with attached drawing to specific embodiments of the present invention.
It as Figure 1-10 shows, is the specific embodiment of paper cap shaping mechanism used in paper cap forming method of the present invention.
A kind of paper cap forming method, comprising the following steps:
Step 1: the scraps of paper to be processed are subjected to surface and are oiled；
Step 2: flanging is carried out to the scraps of paper, the scraps of paper are processed into the cylindricality paper cap of a side opening；
Step A: precompressed sizing is carried out to the paper cap of step 2；
Step 3: primary heating is carried out to paper cap, softens the film on paper cap surface；
Step 4: a nest side is carried out to paper cap, by the inside preliminary bending of paper cap side wall lower edge；
Step 5: reheating is carried out to paper cap, softens the film on paper cap surface；
Step 6: carrying out secondary nest side to paper cap, and paper cap side wall lower edge is inwardly continued bending in place；
Step B: to progress annular knurl and pre-compacted on the inside of the paper cap of step 6；
Step 7: compacting sizing is carried out to paper cap inside.
Paper cap shaping mechanism includes the conveying rotating disc 1 of rotary setting, for positioning the paper cap that paper cap conveyed conveys mould
Tool 2, by scraps of paper conveying mechanism 3 that the scraps of paper convey, the scraps of paper are carried out with the flanging mold 4, right that flanging forms cylindrical paper cap
The cylindrical paper cap that is formed after 4 flanging of flanging mold carries out the pre-pressing die 10 of precompressed integer, is softened to paper cap heating
Two groups of heating mechanisms 5 have 6, to the paper cap side wall to bend inwards to two groups of nest side modes that paper cap progress lower sidewall bends inwards
The annular knurl mold 7 of external annular knurl and compacting is carried out, the shaper 8 for being compacted carry out shaping is carried out to paper cap, is defeated outward to paper cap
The output mechanism 9 sent, the paper cap delivery mold 2 are multiple and are arranged on the circumferencial direction of conveying rotating disc 1, the hemming die
Tool 4,10, one groups of pre-pressing die, 5, one groups of heating mechanism nest side mode tool 6, another group of heating mechanism 5, another group of nest side mode tool 6, rolling
Embossing die tool 7, shaper 8 and output mechanism 9 are sequentially arranged and defeated with the paper cap of top below the circumferencial direction of conveying rotating disc 1
Send the parking station of mold 2 corresponding, the scraps of paper conveying mechanism 3 is set to the side of flanging mold 4, the scraps of paper conveyer
The oil-adding mechanism 11 to oil to the scraps of paper is provided at structure 3.
In the use of the present invention, the process of work are as follows:
[1] scraps of paper are conveyed by scraps of paper conveying mechanism 3, and the oil-adding mechanism 11 at scraps of paper conveying mechanism 3 is right first
The scraps of paper oil；
[2] scraps of paper are transported in flanging mold 4 by scraps of paper conveying mechanism 3 from side；
[3] scraps of paper are pressed into cylindrical paper cap 0 by flanging mold 4, and are output in opposite paper cap delivery mold 2 from top
Positioning；
[4] conveying rotating disc 1 rotates, and paper cap 0 is transported to pre-pressing die 10, is pressed into cylindrical paper cap 0 first by flanging mold 4
Compacting sizing is carried out at pre-pressing die 10；
[5] conveying rotating disc 1 rotates, and paper cap 0 is transported to first group of heating mechanism 5, and first group of heating mechanism 5 is to paper cap 0
On film softened, convenient for its preferably carry out first time nest side；
[6] conveying rotating disc 1 rotates, and paper cap 0 is transported to first group of nest side mode tool 6, and first group of nest side mode has 6 pairs of paper caps 0
Carry out the inside preliminary bending nest side of lower sidewall；
[7] conveying rotating disc 1 rotates, and paper cap 0 is transported to second group of heating mechanism 5, and second group of heating mechanism 5 is to paper cap 0
On film softened, convenient for its preferably carry out second of nest side；
[8] conveying rotating disc 1 rotates, and paper cap 0 is transported to second group of nest side mode tool 6, and second group of nest side mode has 6 pairs of paper caps 0
Carry out lower sidewall inwardly continues bending nest side in place；
[9] conveying rotating disc 1 rotates, and paper cap 0 is transported to annular knurl mold 7, and annular knurl mold 7 is to 0 side of paper cap to bend inwards
Wall carries out external annular knurl and is compacted；
[10] conveying rotating disc 1 rotates, and paper cap 0 is transported to shaper 8, and it is fixed that shaper 8 be compacted to paper cap 0
Type；
[11] conveying rotating disc 1 rotates, and paper cap 0 is transported to output mechanism 9, and 0 delivery mold 2 of paper cap is released to paper cap 0
Positioning enables paper cap 0 fall at output mechanism 9 and exports.
Whole process completes the machine-shaping to paper cap 0, and as shown in Figure 10, the scraps of paper are pressed into first by flanging mold 4
Cylindricality paper cap 0 shown under state, later as first group of nest side mode tool 6 be pressed under second state shown in band bend inwards nest
The paper cap 0 on side is then further pressed onto position by second group of nest side mode tool 6 and completes nest side (not shown), finally by knurled dies
Tool annular knurl be compacted and pass through shaper 8 further compacting is formed after as finished product paper cap 0 shown under third state；Conveying
The respective conveying paper cap 0 of paper cap delivery mold 2 on turntable 1, the respective work of completion that each position can be interference-free, significantly
Working efficiency is improved, automated production guarantees product quality, increases economic efficiency.
This method is conducive to imitate when carrying out pre-flanging operation to it with more smooth molding by oiling to the scraps of paper
Fruit when reducing mold to the scraps of paper extrusion forming a possibility that damage scraps of paper, is also beneficial to the good extruding in scraps of paper periphery and is folded into
For the side wall of paper cap；The operation on nest side is divided into two steps to realize, it is ensured that the quality on nest side, the film in paper cap can after well being softened
Better bending forming, the side wall for avoiding disposable nest side from being likely to occur is uneven or deforms, to ensure that the finished product of processing
Rate；The paper cap quality of such machine-shaping is preferable, and good appearance zero defect can more obtain the approval and happiness of sellers and user
Like, is less prone to the case where paper cap is deformed in process, improves production efficiency and yield rate, reduce cost.This
Paper cap manufactured by method and device is preferably round class paper cap, does not limit the round class paper cap of processing when implementing, using pair
The mold of shape is answered to be processed to the paper cap of uneven type class, rectangular class, reel type etc. when processing.
The setting of pre-pressing die 10 and pressing step A are accurately indeformable convenient for the cylindrical shape of the paper cap 0, after being conducive to
Continuous nest side mode has 6 pairs of paper caps 0 and carries out further nest side.
As shown in Figure 1, scraps of paper conveying mechanism 3 is preferably set as the structure of conveying sheet official form for filing a lawsuit piece, such as the round sheet scraps of paper,
It includes at least heap material space 31 and feeding track 32, and the scraps of paper build up a pile and are placed in heap material space 31, the scraps of paper of bottommost
Can driven-mechanism along feeding track 32 to flanging mold 4 convey；Feeding track 32 is preferably arranged in oil-adding mechanism 11
Top, when the scraps of paper pass through, the decline of oil-adding mechanism 11 resets after oiling to the scraps of paper, and the scraps of paper are transported to flanging mold 4 again.On
Oil machine structure 11 specifically can coat silicone oil to the scraps of paper, and the smoothness of sheet surface can be improved, and be convenient for scraps of paper quilt in flanging mold 4
Surface is smooth when being cylindricality when extrusion forming, reduces the frictional force between the scraps of paper and mold, avoids scratching sheet surface, reduces
Product rejection rate.
As an improvement specific embodiment, paper cap delivery mold 2 includes fixed mould body 212 and pushing material component
213, the lower part of fixed mould body 212 be arranged the cylindricality die cavity 211 for accommodating paper cap, and pushing material component 213 is from fixation mould body
212 top protrudes into cylindricality die cavity 211 and can be axially moveable, and channel 214 and external air suction mechanism are arranged on pushing material component 213
Connection is for being sucked positioning to paper cap.
As shown in Figure 3,4, in the specific implementation, channel 214 is connect with external air suction mechanism such as air pump, and suction mechanism is taken out
Gas is adsorbed on paper cap 0 in cylindricality die cavity 211 and carries out positioning conveying, and pushing material component 213 cooperates as the bottom of chamber of cylindricality die cavity 211
The side wall of cylindricality die cavity 211 limits paper cap 0；Fixed mould body 212 is fixedly mounted on conveying rotating disc 1, pushing material component
213 can axially enable when needing to discharge to paper cap 0 in movable setting, can be living to outside cylindricality die cavity 211 from pushing material component 213
It is dynamic that paper cap 0 is removed cylindricality die cavity 211, the positioning to paper cap 0 can be released when suction mechanism no longer air-breathing, realized to processing
Paper cap 0 discharging work；And when pan feeding positioning, reverse operating can be carried out, absorption paper cap 0 is stretched out by pushing material component 213, is resetted
After be positioned in cylindricality die cavity 211.Overall structure is good to realize the positioning to paper cap 0, discharging, pan feeding, is adapted to mark
The automatic production line of standardization improves automation level of processing.
As an improvement specific embodiment, pushing material component 213 include push plate 2131 interconnected and guiding axis
2132, push plate 2131 is cylindrical and is contained in cylindricality die cavity 211, is adapted with the section of cylindricality die cavity 211 for contradicting paper
It covers, guiding axis 2132 is arranged in fixed mould body 212 the axial activity that carries out, and channel 214 is axially arranged simultaneously along guiding axis 2132
It is connected to one end of push plate 2131.
As shown in Figure 3,4, push plate 2131 is located in cylindricality die cavity 211, and is preferably arranged to transversal with cylindricality die cavity 211
The adaptable cylindricality in face, contacts for good with paper cap 0；Guiding axis 2132 carries out axial activity in fixed mould body 212,
For driving push plate 2131 to be discharged and resetted work；Channel 214 is configured in guiding axis 2132, can be connected to upper end
The connection of suction mechanism is carried out, lower end passes to the center of push plate 2131, for the absorption paper cap 0 stable at middle part；On the whole
Structure is simply convenient for manufacturing.
As an improvement specific embodiment, third elastic component 2133, third elasticity are arranged on guiding axis 2132
The step being arranged on the upper end of part 2133 and guiding axis 2132 contradicts, and lower end offsets with fixed mould body 212, when guiding axis 2132
Drive accent activity from push plate 2131 to cylindricality die cavity 211 when compress third elastic component 2133；The reply of third elastic component 2133
Power drive push plate 2131 returns back to the bottom of chamber of cylindricality die cavity 211.
As shown in Figure 1,2,3, 4, guiding axis 2132 can be driven by external driving part when specifically used, such as gas
Cylinder synchronous with paper cap delivery mold 2 need not be arranged, only need to be arranged on the station for needing to carry out the release of paper cap 0, work as needs
It drives pushing material component 213 to release downwards by driving part when the paper cap delivery mold 2 of release reaches, while compressing third elastic component
2133, the reset of pushing material component 213 is realized by third elastic component 2133, it is not necessary to by external drive component.To realize
The simplification of structure and components, reduces manufacturing cost.
As an improvement specific embodiment, nest side mode tool 6 include coaxially the nest bottom that sets gradually from inside to outside it is pre-
Pressing mold 621 and nest bed die seat 622, nest bed die seat 622 have for the annular groove 6221 to paper cap side wall nest bottom；When paper cap conveys
Mold 2 and nest side mode tool 6 is opposite when being worked, the pre- pressing mold 621 in nest bottom and nest bed die seat 622 by driving part successively with paper
Lid delivery mold 2 is cooperated, and is contradicted paper cap bottom by the pre- pressing mold 621 in nest bottom and is limited, by the annular groove of nest bed die seat 622
6221 conflict paper cap side walls carry out the nest bottom that bends inwards to side wall.
As shown in Figure 3,4, paper cap 0 is adapted with the size of cylindricality die cavity 211, and paper cap 0 is positioned at wherein；The pre- pressing mold in nest bottom
621 and nest bed die seat 622 can move or move synchronously upwards in turn by independent driving part, the pre- pressing mold 621 in nest bottom is stretched
Enter cylindricality die cavity 211 and contradict paper cap 0 to carry out stable to paper cap 0 whole positioning, be conducive to subsequent movement, paper cap 0 it is opposite
Position will not be moved because postorder nest side squeezes, and the well stable uniform nest side for carrying out periphery one and enclosing is effectively ensured.
Postfovea bed die seat 622 reach at paper cap 0, with lasting traveling, annular groove 6221 contradicts 0 side wall of paper cap, 0 side wall edge of paper cap
Annular groove 6221 outer wall inward wall bend nest side, realize nest side effect as shown in Figure 10.Work is completed in nest side mode tool 6
After reset, paper cap 0 is sent to next station by the rotation of conveying rotating disc 1 in paper cap delivery mold 2.The above good reality of preferred embodiment
The nest side work for having showed paper cap 0, enables 0 structure of paper cap before nest side more stable by the positioning in structure, guarantees that circumferential one encloses
Nest side it is uniform, have preferable shape, standardized can continue to be processed into finished product for back process, improve paper cap 0 plus
The quality of work finished product, can good adaptation dixie cup or paper bowl, the lid combined paper cup or paper bowl that peripheral structure uniformly can be stable.
As an improvement specific embodiment, be provided with the first bullet between the pre- pressing mold 621 in nest bottom and nest bed die seat 622
Property part 623, nest bed die seat 622 advance when by the first elastic component 623 push pre- 621 synchronous movement of pressing mold in nest bottom, when nest bottom
After pre- pressing mold 621 contradicts paper cap bottom, nest bed die seat 622 compresses the first elastic component 623 when continuing on.
As shown in Figure 3,4, by the setting of the first elastic component 623, realize that the pre- pressing mold 621 in nest bottom and nest bed die seat 622 can
To synchronize activity by a driving part；In synchronous push, the pre- pressing mold 621 in nest bottom is first reached in cylindrical die chamber 211
The bottom of paper cap 0 is contradicted, then nest bed die seat 622 continues on, and contradicts 0 side wall of paper cap, paper cap 0 by annular groove 6221
Side wall is oriented to along the outer wall of annular groove 6221, bends the inner wall to annular groove 6221 along the slot bottom of annular groove 6221, is advanced
Nest side is completed when in place；The pre- pressing mold 621 in nest crack approach median fovea bottom, will not be right by the limit paper cap 0 of 623 elasticity of the first elastic component
Paper cap 0 brings excessively big pressure, avoids the excessive compression to paper cap 0, guarantees that the shape of paper cap 0 is intact bad.When nest side
When mold 6 is located below, the reset of nest bed die seat 622 realizes that the pre- pressing mold 621 in nest bottom can be by gravity voluntarily by driving part
It resets, or is resetted by the position limiting structure between the pre- pressing mold 621 in nest bottom and nest bed die seat 622.First elastic component 623 is set
Set and enable the limit of paper cap 0 softer, and it is whole driving is configured by a driving part, can good control cost with
Reduce the complexity of structure.
As an improvement specific embodiment, a precompressed mandrel 6211, nest bottom is arranged in the rear portion of the pre- pressing mold 621 in nest bottom
A brood of bottom mandrel 6222 is arranged in 622 rear portion of die holder, and precompressed mandrel 6211 axially movable can be arranged among nest bottom mandrel 6222,
First elastic component 623 is set on precompressed mandrel 6211 and both ends are limited by the pre- pressing mold 621 in nest bottom and nest bed die seat 622 respectively
Position.
As shown in Figure 3,4, precompressed mandrel 6211 is good arranges the first elastic component 623, and the first elastic component 623 is preferably
Spring, both ends of the spring are cooperated with the pre- pressing mold 621 in nest bottom and nest bed die seat 622；Precompressed mandrel 6211 is set in nest bottom mandrel
Axial activity among 6222, the guiding of the two axial direction are stablized, it is ensured that the stabilization axis of nest bottom pre- pressing mold 621 and nest bed die seat 622
To activity, structure the space occupied that double rod is arranged is small, is more advantageous to reduction overall volume, precompressed mandrel 6211 and nest bottom mandrel
Settable axle sleeve guarantee activity stability and abrasion is reduced between 6222.
As an improvement specific embodiment, nest side mode tool 6 further include push seat 624, nest bottom mandrel 6222 can axis
It is pushed on seat 624 to movable be arranged in, pushes and be provided with the second elastic component 625 between seat 624 and nest bed die seat 622, push
Seat 624, which is driven by driving part and passes through the second elastic component 625, pushes 622 synchronous movement of nest bed die seat；Outside nest bed die seat 622
It encloses with the resistance surface 6223 inconsistent with 2 periphery of paper cap delivery mold, when resistance surface 6223 and paper cap delivery mold 2 contradict
When, push seat 624 to continue on the second elastic component 625 of compression.
As shown in Figure 3,4, by the setting of the second elastic component 625, realize that nest bed die seat 622 is also that elasticity presses to paper cap
The resistance surface 6223 of delivery mold 2 pushes seat 624 to continue compression the after nest bed die seat 622 is reached and contradicted at resistance surface 6223
Two elastic components 625 enable molding firm stable, and mold contradicts soft in place, mold itself does not have hard collision, avoid between mold
Abrasion of colliding with；Push seat 624 reset by driving part realization, nest bed die seat 622 can by gravity self-resetting, or
By nest bed die seat 622 and the position limiting structure between seat 624 is pushed to be resetted.The setting of second elastic component 625 enables between mold
Cooperate in place it is softer, and it is whole driving is configured by a driving part, can good control cost and reduction tie
The complexity of structure.Nest bottom mandrel 6222 is good to arrange the second elastic component 625, and the second elastic component 625 is preferably spring, spring
Both ends are cooperated with seat 624 and nest bed die seat 622 is pushed；Nest bottom mandrel 6222, which is set in, pushes axial activity among seat 624,
The guiding of the two axial direction is stablized, it is ensured that pushes the stable axial activity of seat 624 and nest bed die seat 622, the structure that double rod is arranged
The space occupied is small, is more advantageous to reduction overall volume, and settable axle sleeve between seat 624 and nest bottom mandrel 6222 is pushed to guarantee to live
Dynamic stability simultaneously reduces abrasion.
As an improvement specific embodiment, the lateral wall of nest side annular groove 6221 is higher than inner sidewall, lateral wall and
Inner sidewall is obliquely installed and connects in 6221 bottom camber of annular groove.
As shown in Figure 3,4, lateral wall is higher, and upper part with 0 side wall of paper cap for contacting in advance and it being relied on to be inclined outwardly
Structure inwardly guide paper cap 0, the slot bottom of annular groove 6221 is that arc enables 0 side wall of paper cap carry out soft bending, and passes through stream
The inside side wall bending of smooth connection is upward, to complete nest side；The good guidance realized to 0 side wall of paper cap and soft nest
Side, hard squeeze contacts the problem of occurred paper cap 0 deforms when avoiding existing nest side, to improve yield rate.
As an improvement specific embodiment, flanging mold 4 include coaxial arrangement flanging stent 41 and activity
Mould group 42, flanging stent 41 have one axially through cylindricality go out die hole 411, cylindricality goes out die hole 411 towards movable mold group 42
An end periphery have angularly disposed guiding wall 412；Movable mold group 42 includes outside the precompressed that coaxial ecto-entad is set gradually
Circle 423, the pre- pressing mold 422 of flanging and folding bed die 421, precompressed outer ring 423, the pre- pressing mold 422 of flanging and folding bed die 421 pass through driving portion
Part is successively cooperated with flanging stent 41, and the end face of precompressed outer ring 423 and flanging stent 41 is engaged for precompressed
To the flanging scraps of paper, the pre- pressing mold 422 of flanging is adapted with guiding wall 412 and is used to treat the flanging scraps of paper when being engaged pre- for positioning
First fold gradient, folding bed die 421 and cylindricality go out that die hole 411 is adapted and be used for when die hole 411 pushes will be to going out towards cylindricality
The flanging scraps of paper go out in die hole 411 in cylindricality is shaped to cylindrical paper cap；Paper cap is released cylindricality upwards and goes out die hole by folding bed die 421
The paper cap delivery mold 2 that paper cap is pushed into top is positioned when 411.
As shown in Figure 5,6, flanging stent 41 can be preferably set to top, movable mold group 42 is set to lower section, to
The flanging scraps of paper are transported between flanging stent 41 and movable mold group 42 from the scraps of paper conveying mechanism 3 of side, if it is piece official form for filing a lawsuit
Piece can carry out limit by the position-limit mechanism in 42 outside of movable mold group and enable scraps of paper consistency from top to bottom；It, can be by activity if it is the band-like scraps of paper
The cutting mechanism in 42 outside of mould group is cut into sheet.Precompressed outer ring 423, the pre- pressing mold 422 of flanging and folding bed die 421 can pass through independence
Driving part move or move synchronously upwards in turn, it is right after the end face of precompressed outer ring 423 and flanging stent 41 contradicts
The scraps of paper have carried out periphery positioning, are conducive to subsequent movement, and the scraps of paper are not in offset, precompressed outer ring 423 and flanging stent
The mode that the little conflict of pressure can be used in 41 end face or elasticity contradicts inwardly is slided while positioning convenient for the subsequent scraps of paper
Move into type.The pre- pressing mold 422 of flanging reaches at guiding wall 412 later, and the inclined-plane of the two contradicts to fold the periphery of the scraps of paper tiltedly
The mode that the little conflict of pressure can also be used in degree, the pre- pressing mold 422 of flanging and guiding wall 412 or elasticity contradicts, in guidance paper
Molding is inwardly slid while piece is bent convenient for the subsequent scraps of paper.The scraps of paper are finally contacted by folding bed die 421, folding bed die 421 is cylindrical,
The scraps of paper are pressed into cylindricality by lasting traveling and go out die hole 411 by it, and the periphery of scraps of paper fold becomes cylindricality；Because the external scraps of paper are equal
The oblique guidance folding for first passing through the pre- pressing mold 422 of flanging and guiding wall 412 is dynamic, and preparatory preliminary extruding folding has been carried out between the scraps of paper
It is folded, go out between die hole 411 and folding bed die 421 to be shaped to cylindrical side wall as the scraps of paper reach cylindricality, the scraps of paper can more uniformly
Folding, be not in that periphery quickly turns down the structure of formation and squeezes and fold non-uniform situation.As folding bed die 421 is lasting
It promotes and being shaped to cylindrical paper cap and releasing cylindricality upwards go out die hole 411, can be pushed into carry out in the paper cap delivery mold 2 of top
Positioning.The good flanging work for realizing paper cap 0 of the above preferred embodiment, enables the side wall of paper cap 0 steady by the guidance in structure
It is fixed uniformly to form, it is folded in overall structure uniformly, there is preferable shape, standardized can continue to be processed into for back process
Finished product improves the quality that paper cap 0 processes finished product, can good adaptation dixie cup or paper bowl, peripheral structure can uniformly stablize
Lid combined paper cup or paper bowl.
As an improvement specific embodiment, precompressed outer ring 423 and the pre- pressing mold 422 of flanging pass through a precompressed mandril
424 synchronize promotion, and both precompressed outer ring 423 and the pre- pressing mold 422 of flanging are provided with elastomeric element between precompressed mandril 424
425, precompressed outer ring 423 and the pre- pressing mold 422 of flanging are contradicted respectively by the elasticity of elastomeric element 425 in 41 end face of flanging stent
At guiding wall 412；When precompressed outer ring 423 and 41 end face of flanging stent contradict, precompressed mandril 424 is continued on flanging
Pre- pressing mold 422 is against guiding wall 412；The front end of precompressed mandril 424 is provided with precompressed arrangement frame 43, and precompressed arranges that frame 43 includes top
Disk 431, inner pressure ring 432 and outer press ring 433, top plate 431 are set to the end of precompressed mandril 424, inner pressure ring 432 and outer press ring
433 are respectively arranged at the inner side and outer side of top plate 431；Outer press ring 433 carries out upper limit to precompressed outer ring 423 by step 434,
Elastomeric element 425 is set between precompressed outer ring 423 and top plate 431；Inner pressure ring 432 by the pre- pressing mold 422 of 434 conduplication side of step into
Elastomeric element 425 is arranged in row upper limit between the pre- pressing mold 422 of flanging and top plate 431.
As shown in Figure 5,6, precompressed outer ring 423 and the pre- pressing mold 422 of flanging can pass through a component, i.e. precompressed mandril 424
Promotion is synchronized, the position difference that precompressed outer ring 423 and the pre- pressing mold 422 of flanging are released is realized by elastomeric element 425；In synchronization
When promotion, precompressed outer ring 423 first reaches 41 end face of flanging stent and is contradicted, and precompressed mandril 424 continues at this time, can
The pre- pressing mold 422 of flanging is contradicted to guiding wall 412；And compressible elastomeric component 425 realizes supporting for elasticity at precompressed outer ring 423
It touches, is also the conflict of elasticity at the pre- pressing mold 422 of flanging and guiding wall 412.It, can good realization outside week under the above structure
The positioning on side and the bending of midperipheral, and the elasticity of the two contradicts convenient for folding bed die 421 when promoting scraps of paper molding, periphery
Resistance it is smaller, be more advantageous to the molding for guaranteeing the scraps of paper, the periphery of conflict is not easy to hurt the scraps of paper because conflict power is excessive, guarantees
The yield rate of paper cap 0.Precompressed mandril 424 can be configured driving by a driving part simultaneously, can good control cost
With the complexity for reducing structure.
As the further refinement to 424 front-end architecture of precompressed mandril, the precompressed arrangement frame 43 of setting is to precompressed outer ring 423
It carries out specifically positioning arrangement with the pre- pressing mold 422 of flanging；Inner pressure ring 432 and outer press ring 433 are annular, and inner pressure ring 432 is pushing up
Step 434 is outwardly formed to limit the pre- pressing mold 422 of flanging after being arranged on the inside of disk 431, and outer press ring 433 is arranged on the outside of top plate 431
After be inwardly formed step 434 to limit precompressed outer ring 423, precompressed outer ring 423 and the pre- pressing mold 422 of flanging in inner pressure ring 432 and outer
Space between pressure ring 433 is stretched out, and the two passes through cylindrical side wall between each other and limits；Precompressed outer ring 423 and the pre- pressing mold of flanging
422 lower part setting elastomeric element 425 is against in top plate 431, and elastomeric element 425 can be evenly arranged in the circumferential multiple groups to stablize
Carry precompressed outer ring 423 and the pre- pressing mold 422 of flanging.
As an improvement specific embodiment, outside the end inner edge of outer press ring 433 and the end of flanging stent 41
Edge cooperatively forms the cutoff edge 44 cut to the flanging scraps of paper.
As shown in fig. 6, outer press ring 433 can be specifically configured to the structure for cooperating banded paper piece to work, i.e. outer press ring 433
With flanging stent 41 upper and lower cutting structure is formed, outer press ring 433 and folding are realized with lasting the moving upwards of outer press ring 433
The band-like scraps of paper are cut out the sheet scraps of paper at middle part by the cutoff edge 44 that side stent 41 matches, convenient for adaptation banded paper piece conveying
Type uses.
As an improvement specific embodiment, outer press ring 433 inner edge setting covering 180 degree several paper feedings limit
Baffle 45, and the space for reserving 180 degree is used for the space of side paper feeding.
As shown in fig. 6, it is the knot to work for engagement tabs official form for filing a lawsuit piece that the setting paper feeding of 433 periphery of outer press ring, which limits baffle 45,
The type of structure, adaptation sheet scraps of paper conveying uses, and the sheet scraps of paper are pushed into 41 He of flanging stent from side by scraps of paper conveying mechanism 3
Between movable mold group 42；After reaching several paper feedings for surrounding half-turn limit baffle 45, the sheet scraps of paper are stopped and are parked in pair
Neat position；As four paper feeding limit baffles 45 preferably can be set, two groups are symmetrical arranged in left-right position, and set at rear
Symmetrical two groups are set, realizes the good limit of circular paper；Either arrangement paper feeding limits baffle 45 as needed, meets to not
The blocking of the similar shape scraps of paper limits.
As an improvement specific embodiment, the periphery of top plate 431 is arranged on several guide rods 46, guide rod 46 and pre-
The bar 424 that bears down on one is arranged in parallel, and the buffer spring 461 buffered for top plate 431 is provided on guide rod 46.
As shown in Figure 5,6, guide rod 46 is preferably the position that four angles are arranged in, and realizes stable arrangement top plate 431, and
Enable top plate 431 that can stablize activity along the axial direction of precompressed mandril 424；Top plate 431 release when position by flanging stent 41
It is contradicted between movable mold group 42, and when resetting, buffer spring 461 can be further set, enable top plate 431 when resetting
By good buffering, the hardness impact that structure decline is suffered in precompressed arrangement frame 43 is reduced, the abrasion between components is reduced.
As an improvement specific embodiment, folding bed die 421 includes flanging top 4211 and flanging mandril 4212, folding
Side comes directly towards 4211 ends that are cylindrical and being set to flanging mandril 4212, and flanging mandril 4212 axially movable can be arranged in precompressed
Among mandril 424, precompressed mandril 424 and flanging mandril 4212 are moved by independent driving part respectively.
As shown in Figure 5,6, flanging top 4211 is specifically configured to cylindricality and compatible setting in the pre- pressing mold 422 of flanging
In the space in portion, rear end connection flanging mandril 4212 pass through precompressed mandril 424 can connect outward independent driving part into
Row movement, settable axle sleeve guarantee activity stability and reduces abrasion between precompressed mandril 424 and flanging mandril 4212；And double rod
The structure the space occupied being arranged is small, is more advantageous to reduction overall volume.
As an improvement specific embodiment, the hole wall and guiding wall 412 that cylindricality goes out die hole 411 are by arc mistake
It crosses.
As shown in Figure 5,6, the cylindricality of middle part arc-shaped transition goes out 411 hole wall of die hole and guiding wall 412 is more advantageous to the scraps of paper
Flanging is guided, whole smooth, deformation is uniform, is hardly damaged the scraps of paper, guarantees yield rate.
As an improvement specific embodiment, the pre- pressing mold 422 of flanging have positioned at tip inside planar wall 4221
With the skew wall 4222 being located on the outside of end, skew wall 4222 is adapted with guiding wall 412.
As shown in Figure 5,6, in cooperation, skew wall 4222 contacts to limit the scraps of paper with guiding wall 412；Planar wall 4221 does not have
Sharp angle will not be damaged to sheet surface, form gentle region between folding bed die 421 and skew wall 4222 and enable the scraps of paper good
Good transition, will not the extruding excessive to the scraps of paper leave folding line, guarantee that paper cap shape is good.
As an improvement specific embodiment, as shown in fig. 7, heating mechanism 5 include blower mechanism 51 and blowing cover
52, which forms a cavity 53, and blower mechanism 51 is connected in the cavity 53 for drying cover 52 from lower part, cavity 53
Upper opening is simultaneously corresponding with paper cap delivery mold 2, and when paper cap delivery mold 2 is located at heating mechanism 5, paper cap 0 is covered on
At the upper opening of cavity 53, the work of blower mechanism 51 can blow hot wind to cavity 53, to carry out heating and softening paper to paper cap 0
The film on 0 surface of lid, the film preferably use PE film；And preferably one exhaust passage 54 can be set in 53 side of cavity again, come
Air-flow is guided, wind is avoided to cause biggish pressure to paper cap 0.
As an improvement specific embodiment, as shown in figure 8, this can be used in shaper 8 and pre-pressing die 10
Structure is realized comprising stock mould 81, guide rod 82 and guide rod seat 83, the axial activity in guide rod seat 83 of guide rod 82, guide rod 82
Stock mould 81 is arranged in top, and stock mould 81 is cylinder, cooperates for protruding into cylindricality die cavity 211 and the side wall of cylindricality die cavity 211
It is compacted the side wall of paper cap 0, so as to the paper cap 0 under first that is formed as shown in Figure 10 and third state.
As an improvement specific embodiment, as shown in figure 9, annular knurl mold 7 include support 71, knurled wheel 72 and partially
Heart rotating mechanism 73, the mechanism 73 that is eccentrically rotated are rotatably arranged in support 71, support 71 simultaneously by its structure with
Paper cap delivery mold 2 cooperates, and can mold with about 2 paper cap delivery mold, and knurled wheel 72, which is located at, is eccentrically rotated the upper of mechanism 73
End；Knurled wheel 72 enters in cylindricality die cavity 211 when molding, rotates the paper for enabling knurled wheel 72 be compacted one week by being eccentrically rotated mechanism 73
0 side wall of lid.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of paper cap forming method, it is characterised in that: the following steps are included:
Step 1: the scraps of paper to be processed are subjected to surface and are oiled；
Step 2: flanging is carried out to the scraps of paper, the scraps of paper are processed into the cylindricality paper cap of a side opening；
Step 3: primary heating is carried out to paper cap, softens the film on paper cap surface；
Step 4: a nest side is carried out to paper cap, by the inside preliminary bending of paper cap side wall lower edge；
Step 5: reheating is carried out to paper cap, softens the film on paper cap surface；
Step 6: carrying out secondary nest side to paper cap, and paper cap side wall lower edge is inwardly continued bending in place；
Step 7: compacting sizing is carried out to paper cap inside.
2. a kind of paper cap forming method according to claim 1, it is characterised in that: also have between step 2 and step 3
Step A, step A are to carry out precompressed sizing to the paper cap of step 2.
3. a kind of paper cap forming method according to claim 1, it is characterised in that: also have between step 6 and step 7
Step B, step B are that annular knurl and pre-compacted are carried out on the inside of the paper cap to step 6.
4. a kind of paper cap forming method according to claim 1 or 2 or 3, it is characterised in that: paper cap forming method uses paper
The realization of lid shaping mechanism, the paper that paper cap shaping mechanism includes the conveying rotating disc (1) of rotary setting, conveyed for positioning paper cap
Lid delivery mold (2), by scraps of paper conveying mechanism (3) that the scraps of paper convey, the scraps of paper carried out with flanging form cylindrical paper cap
The cylindrical paper cap that is formed after flanging mold (4), conduplication side mold (4) flanging carries out the pre-pressing die (10), right of precompressed integer
Paper cap heats the two groups of heating mechanisms (5) softened, carries out two groups of nest side modes tool that lower sidewall bends inwards to paper cap
(6), the annular knurl mold (7) of external annular knurl and compacting is carried out to the paper cap side wall to bend inwards, paper cap is carried out being compacted determine
The shaper (8) of type, the output mechanism (9) conveyed outward to paper cap, the paper cap delivery mold (2) are multiple and are arranged
On the circumferencial direction of conveying rotating disc (1), the flanging mold (4), pre-pressing die (10), one group of heating mechanism (5), one group of nest side
Mold (6), another group of heating mechanism (5), another group of nest side mode tool (6), annular knurl mold (7), shaper (8) and output mechanism
(9) it is sequentially arranged and opposite with the parking station of paper cap delivery mold (2) of top below the circumferencial direction of conveying rotating disc (1)
It answers, the scraps of paper conveying mechanism (3) is set to the side of flanging mold (4), is provided at the scraps of paper conveying mechanism (3) to paper
The oil-adding mechanism (11) that piece oils.
5. a kind of paper cap forming method according to claim 4, it is characterised in that: the paper cap delivery mold (2) includes
The column for accommodating paper cap is arranged in fixed mould body (212) and pushing material component (213), the lower part of the fixed mould body (212)
Shape die cavity (211), the pushing material component (213) protrude into cylindricality die cavity (211) from the top of fixed mould body (212) and can be along axis
Channel (214) are arranged to activity, on the pushing material component (213) to be connect with external air suction mechanism for positioning to be sucked to paper cap.
6. a kind of paper cap forming method according to claim 5, it is characterised in that: the pushing material component (213) includes phase
The push plate (2131) to connect and guiding axis (2132), the push plate (2131) is cylindrical and is contained in cylindricality die cavity (211),
It is adapted with the section of cylindricality die cavity (211) for contradicting paper cap, the guiding axis (2132) is arranged in fixed mould body (212)
The axial activity of middle progress, the channel (214) are axially arranged and are connected to one end of push plate (2131) along guiding axis (2132).
7. a kind of paper cap forming method according to claim 4, it is characterised in that: the nest side mode tool (6) includes coaxial
The pre- pressing mold in nest bottom (621) and nest bed die seat (622) set gradually from inside to outside, the nest bed die seat (622) have for pair
The annular groove (6221) at paper cap side wall nest bottom；It is described when paper cap delivery mold (2) and nest side mode tool (6) are worked relatively
The pre- pressing mold in nest bottom (621) and nest bed die seat (622) are successively cooperated with paper cap delivery mold (2) by driving part, by nest
The pre- pressing mold in bottom (621) contradicts paper cap bottom and is limited, and contradicts paper cap side wall pair by the annular groove (6221) of nest bed die seat (622)
Side wall carries out the nest bottom that bends inwards.
8. a kind of paper cap forming method according to claim 7, it is characterised in that: the pre- pressing mold in nest bottom (621) and nest
It is provided between bed die seat (622) the first elastic component (623), the nest bed die seat (622) passes through the first elastic component when advancing
(623) the pre- pressing mold in nest bottom (621) synchronous movement is pushed, after the pre- pressing mold in nest bottom (621) contradicts paper cap bottom, nest bed die seat
(622) the first elastic component (623) are compressed when continuing on.
9. a kind of paper cap forming method according to claim 4, it is characterised in that: the flanging mold (4) includes coaxial
The flanging stent (41) and movable mold group (42) of setting, the flanging stent (41) have one axially through cylindricality depanning
Hole (411), the end periphery that the cylindricality goes out die hole (411) towards movable mold group (42) have angularly disposed guiding wall
(412)；The movable mold group (42) includes precompressed outer ring (423), the pre- pressing mold of flanging (422) that coaxial ecto-entad is set gradually
With folding bed die (421), the precompressed outer ring (423), the pre- pressing mold of flanging (422) and folding bed die (421) pass through driving part successively
Cooperated with flanging stent (41), the end face of the precompressed outer ring (423) and flanging stent (41), which is engaged, to be used for
Precompressed position to the flanging scraps of paper, the pre- pressing mold of flanging (422) be adapted with guiding wall (412) and when being engaged be used for pair
Gradient is folded in advance to the flanging scraps of paper, and the folding bed die (421) and cylindricality go out die hole (411) and be adapted and towards cylindricality depanning
For that will go out in die hole (411) to be shaped to cylindrical paper cap in cylindricality to the flanging scraps of paper when hole (411) pushes；The folding bed die
(421) paper cap is released upwards and positions the paper cap delivery mold (2) that paper cap is pushed into top when cylindricality goes out die hole (411).
10. a kind of paper cap forming method according to claim 9, it is characterised in that: the precompressed outer ring (423) and flanging
Pre- pressing mold (422) synchronizes promotion, the precompressed outer ring (423) and the pre- pressing mold of flanging (422) by a precompressed mandril (424)
It is provided between the two and precompressed mandril (424) elastomeric element (425), the precompressed outer ring (423) and the pre- pressing mold of flanging (422)
It is contradicted at flanging stent (41) end face and guiding wall (412) respectively by the elasticity of elastomeric element (425)；When precompressed outer ring
(423) when contradicting with flanging stent (41) end face, precompressed mandril (424) is continued on the pre- pressing mold of flanging (422) against drawing
Guide wall (412)；
The front end of the precompressed mandril (424) is provided with precompressed arrangement frame (43), and precompressed arrangement frame (43) includes top plate
(431), inner pressure ring (432) and outer press ring (433), the top plate (431) is set to the end of precompressed mandril (424), described interior
Pressure ring (432) and outer press ring (433) are respectively arranged at the inner side and outer side of top plate (431)；The outer press ring (433) passes through step
(434) upper limit is carried out to precompressed outer ring (423), elastomeric element (425) is set between precompressed outer ring (423) and top plate (431)；
The inner pressure ring (432) carries out upper limit, the pre- pressing mold of flanging (422) and top plate by the pre- pressing mold of step (434) conduplication side (422)
(431) elastomeric element (425) are set between.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169714.8A CN109732997B (en) | 2019-03-06 | 2019-03-06 | Paper cover forming method |
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|---|---|---|---|
| CN201910169714.8A CN109732997B (en) | 2019-03-06 | 2019-03-06 | Paper cover forming method |
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Cited By (1)
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|---|---|---|---|---|
| CN112549659A (en) * | 2020-11-30 | 2021-03-26 | 浙江新德宝机械有限公司 | Double-layer paper cover forming process |
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