CN103572668B - The manufacture mould of pulp vessel based on solid flanges mouth body - Google Patents

The manufacture mould of pulp vessel based on solid flanges mouth body Download PDF

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CN103572668B
CN103572668B CN201310488721.7A CN201310488721A CN103572668B CN 103572668 B CN103572668 B CN 103572668B CN 201310488721 A CN201310488721 A CN 201310488721A CN 103572668 B CN103572668 B CN 103572668B
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punch
cavity plate
pin
vessel
pulp
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CN103572668A (en
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季明飞
傅敬然
侯晓彦
江峰
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Abstract

The invention discloses a kind of pulp vessel based on solid flanges mouth body, solid annular flange is provided with the outside of the oral area of container.Present invention also offers the manufacture mould of above-mentioned pulp vessel, including punch-pin and cavity plate, the outside that punch-pin and cavity plate correspond to vessel port forming position is set up and down with respect to the deep-slotted chip breaker for forming vessel port flange respectively.During thermocompression forming, reserving in advance the vessel port position more and carry out a part of paper pulp wet embryo, and squeeze into the forming cavity at mold flanges position, produce the pulp vessel mouth flange different from pulp product body thickness.The container of paper mould of the present invention, once hot-forming, mouth body forms solid smooth flange, and from secondary trimming, so as to meet to be used cooperatively with barb tank therefor lid, production cost of the present invention is low, practical.

Description

The manufacture mould of pulp vessel based on solid flanges mouth body
Technical field
The present invention relates to the container that paper pulp moulding technology manufacture is utilized based on string, more specifically to container The improvement of oral structure and its processing method.
Background technology
Prior art, for paper mould wet embryo after thermocompression forming, its thickness is that general uniform is consistent.Pulp vessel Container finish shape is flat or the container such as hollow arc, this paper pulp cup or bowl, can not be with the container with barb groove Lid is accomplished to be fitted close, and limits the application of pulp product.
In addition, the moulded paper pulp product of prior art is in production using open die, as shown in figure 1, wet embryo Raw material is handled using container edge circular arc more during being extruded to shape of hot pressing die, and unnecessary raw material is extruded away shape Into overlap, this overlap also needs to secondary operation, that is, cuts overlap.Although the periphery for cutting the pulp goodses of overlap is neat, It is but to become sharp, easily feels cutting torch, consumer can be allowed to feel very uncomfortable in use.
The processing technology of another prior art, Disposable paper cup is rolled into using cardboard.Although it can be rolled up in rim of a cup portion Into open circles, it the problem of in the absence of cutting torch, and can coordinate with the vinyl cover with barb groove, extensively should be commercially available With, but its processing technology rolls for cardboard, is unsuitable for paper mould manufacture, and production cost and efficiency all not as good as paper pulp die The manufacturing process of modeling so that product cost is higher.
At present, the paper pulp moulding product under prior art can not accomplish turnup container finish, significantly limit paper pulp production The promotion and application of product.
The content of the invention
The present invention is intended to provide a kind of vessel port is outwardly formed the paper pulp moulding product of flange, so as to band barb The container cover of groove is fitted close, and reaches function of containing articles.Present invention also offers the manufacturing process of paper pulp moulding product, has work The characteristics of skill is simple, cost is low, efficiency high, the cost of product is greatly reduced, be adapted to popularization and application.
In order to achieve the above object, the present invention provides a kind of pulp vessel based on solid flanges mouth body, the paper pulp accommodating The oral area of device has wrapped around solid smooth flange.
Herein, flange " smooth " is intended to the prominent difference with prior art manner paper pulp moulded container product.Prior art Paper pulp moulded container product, after oral area flanging as shown in Figure 1 molding, due to being in opening, unrestricted state, hemmed edges Now locate irregular burr or sawtooth, thus it is not smooth enough, it is necessary to which secondary operation, knife are cut into.After cutting, mouth rim but becomes Sharp, easy cutting torch during use.And one-shot forming of the present invention goes out the smooth flange of not cutting torch.
The density of flange can it is identical from the density of pulp vessel body can also be different, usually pulp vessel body 0.2~2 times.According to the number for staying material, the density of flange can be varied from., can be with as rim of a cup equal strength requires high product Highdensity flange is made, intensity is high, durable performance is good;The product such as instant noodle bowl or saucer, can make the convex of low-density Edge, as long as not feeling cutting torch, there is general intensity.In addition, the cross section of flange is the excessive enclosed shape of arc Shape, can be that circle may also be the other shapes such as ellipse, it is excessive with arc, into smoother version.
In order to manufacture above-mentioned pulp vessel, present invention also offers the manufacture mould of above-mentioned pulp vessel, including punch-pin and Cavity plate, the outside that the punch-pin and cavity plate correspond to vessel port forming position are set up and down with respect to formation vessel port flange respectively Deep-slotted chip breaker;Punch-pin and the cavity plate side wall of two deep-slotted chip breakers and both sides forms in mold process and stays feed bin.It is being molded During, especially an intermediateness be present, stay feed bin to form closing space, inside, which is stayed, sets the wet base of paper pulp, passes through two arcs The wet base of these paper pulp of the relative molding of groove, form flange.
In addition, forming closed mould under the convex concave mould matched moulds state of the present invention, damascene structures and baffle ring are specifically divided into Formula structure.
Under a kind of embodiment, it is respectively one that the punch-pin and cavity plate, which form container cavity and the mould of vessel port flange, Body formula structure, that is, form the embedded Integral die of closing.
Present invention also offers second of embedded mould structure, referred to as closes embedded Split type die, is specially:Institute State punch-pin and include middle part lordosis and be used to form the central punch part of container cavity, and outside is rearmounted is used to form paper pulp accommodating The ring-type convex portions of device mouth body flange;The central punch part and the ring-type convex portions are split-type structural, top The respective executing agency promoted to the cavity plate direction is connected respectively;The cavity plate includes coordinating the central punch part Concave portions;The concave portions are located at vessel port solid flanges forming position and are provided with lower arcuate slot;The cavity plate also wraps Include the entity part being higher by the outside of the vessel port forming position connection lower arcuate slot;The ring-type convex portions of the punch-pin with Space between the cavity plate entity part and the punch-pin central punch part is engaged, and the ring-type convex portions Bottom is provided with the upper deep-slotted chip breaker of composition pulp vessel mouth body flange after, docking corresponding with the lower arcuate slot.
In second of embedded mould structure, the distance that the cavity plate entity part is higher by vessel port forming position is more than Or need to set according to mould equal to the reserved wet specific distance of length of stock, it can realize that processing is defined, preferably taking into account cost will Ask.It is described to reserve wet length of stock L=s ρ/h;
Wherein:The sectional area of s--- flanges;
ρ --- flange relative to vessel density;
The thickness of h--- vessels.
Under another way, mould uses baffle ring structure, or is referred to as closing limit ring type mould, specifically:The punch-pin Central punch part including convexing into container cavity before middle part, and the rearmounted ring for forming pulp vessel mouth body flange in outside Shape convex portions;The central punch part and the ring-type convex portions are split-type structural, and top connects respective respectively The executing agency promoted to the cavity plate direction.Each contacted and counted with wet embryo with Split mold, the ring-type convex portions Stroke is promoted to be more than the propulsion stroke of the central punch part, the stroke having more is suitable with the length of reserved material.It is described recessed Mould includes coordinating the concave portions of the central punch part, and set on the outside of the concave portions outside annular groove to The elastic baffle ring that the punch-pin ring-type convex portions direction is upspring;Ring is formed between the elastic baffle ring and the concave portions Shape projection section.Wherein, the inside edge of the punch-pin ring-type convex portions and the annular boss part of the cavity plate The mutual deep-slotted chip breaker for corresponding to, pulp vessel mouth body flange being formed after docking is set respectively on the outside of upper surface;And the elasticity The madial wall of baffle ring and the side wall that feed bin is stayed described in the lateral wall composition of the central punch part.
In above-mentioned baffle ring structure, under preferred embodiment, elastic baffle ring is upspring and forms container higher than the concave portions under state The position of mouth, and be higher by distance and be more than or equal to the wet length of stock for staying and being reserved in feed bin, specific distance is according to mould need Set, can realize that processing is defined, and preferably takes into account cost requirement.It is described to reserve wet length of stock L=s ρ/h;
Wherein:The sectional area of s--- flanges;
ρ --- flange relative to vessel density;
The thickness of h--- vessels.
In addition, another mould of the present invention, i.e. baffle ring Integral die, the punch-pin convex into container before including middle part The central punch part of cavity, and the rearmounted ring-type convex portions for forming pulp vessel mouth body flange in outside;The middle cardiac prominence Mould part and the ring-type convex portions are integral type structure, that is, are combined into one;The cavity plate includes coordinating the central punch Set on the outside of partial concave portions, and the concave portions in annular groove to the punch-pin ring-type convex portions side To the elastic baffle ring upspring;Annular boss part is formed between the elastic baffle ring and the concave portions;Wherein, it is described convex Set respectively on the outside of the upper surface of the inner side lower edge of modular ring shape convex portions and the annular boss part of the cavity plate mutual The deep-slotted chip breaker of pulp vessel mouth body flange is formed after corresponding, docking;And the madial wall of the elastic baffle ring and the center The side wall of feed bin is stayed described in the lateral wall composition of convex portions.
To sum up, the invention provides a kind of manufacture method of pulp vessel, in paper pulp wet embryo shaping stage, in vessel port Position reserves paper pulp wet embryo more;During thermocompression forming, will be described more the wet embryo reserved squeeze into mold flanges position In forming cavity, the pulp vessel with solid flanges mouth body is produced.
Wherein, more reserved wet embryo length L=s ρ/h;
The sectional area of s--- flanges;
ρ --- flange relative to vessel density;
The thickness of h--- vessels.
The present invention requires as follows to mould:
Feed bin is stayed dedicated for flange formation 1. having on cavity plate, it is exactly how prefabricated in order to accommodate to stay feed bin main function Wet embryo, to form flange.
2. cavity plate stay feed bin can be with body integral structure, that is, form upper and lower mould damascene structures;It can also be It is split type, i.e., feed bin is stayed using the baffle ring structure of slide block type, formation.
3. punch-pin can be integral or split.Split type i.e. body is a part, is first extruded, then convex Edge part mould pushes again, suppresses flange.
Based on the process principle of above-mentioned mould, present invention also offers a kind of pulp vessel based on solid flanges mouth body Manufacture method, in paper pulp wet embryo shaping stage, reserving part paper pulp wet embryo the vessel port position more;In thermocompression forming During, will be described more the wet embryo reserved squeeze into the forming cavity at mold flanges position, produce with solid flanges mouth body Pulp vessel.
In addition, in manufacturing process, processing technology requires as follows:
1. reserved material calculation formula, calculate the length of reserved material.According to product demand, more reserved paper pulp wet embryo material, then press The flanged structure density of system is big, more than body.Then density is small for few reserved material.
2. the wide-angle such as cup container can directly use one-step method.Above and below i.e. during matched moulds, sidewall extrusion pulp product Meanwhile the flange on top is also started extruding, is molded simultaneously.
3. bowl etc. low-angle container use two-step method.After body is pressed against first, then flange extrusion is molded;
4. the wide-angle such as cup container can also using two-step method.
The container of paper mould of the present invention, once hot-forming, mouth body forms smooth circular, ellipse or approximate circle Solid flanges, the diameter of flange are more than paper pulp accommodating wall or the thickness at bottom, real with the cooperation of barb tank therefor lid so as to meet With;Flange particularly of the present invention is smooth not to need secondary knife to cut, and greatly reduces production cost, and solid flange openings body, Actual practicality is more suitable for, durability is strong.
In addition, processing mold provided by the invention, when wet embryo is molded, default unnecessary reserved material is accommodated into staying material In storehouse, the vessel port periphery design of mould goes out deep-slotted chip breaker, and in hot pressing, reserved material is extruded into the default container of mould In mouth deep-slotted chip breaker die cavity, paper pulp forms solid thick flange full of wherein.The present invention changes existing open die as closing Formula mould.Flash problem of the l Water Paper embryo in hot pressing is limited using closed die, so cutting shaping without knife, had There is the characteristics of technological process is simple, processing cost is low.In addition, can be circular, oval or approximate circle after vessel port die cavity matched moulds The shapes such as shape, ellipse, the gap of vessel port die cavity are more than the gap at chamber wall or bottom.
Brief description of the drawings
Fig. 1 is the pulp vessel schematic diagram of prior art paper pulp moulding technology manufacture overlap vessel port.
Fig. 2 is the original state schematic diagram of first embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Fig. 3 is the intermediateness schematic diagram of first embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Fig. 4 is the close-up schematic view at A in Fig. 3.
Fig. 5 is the moulded state schematic diagram of first embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Fig. 6 is the close-up schematic view at B in Fig. 5.
Fig. 7 is the original state schematic diagram of second embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Fig. 8 is the intermediateness schematic diagram of second embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Fig. 9 is the close-up schematic view at C in Fig. 8.
Figure 10 is the moulded state schematic diagram of second embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Figure 11 is the original state schematic diagram of third embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Figure 12 is the intermediateness schematic diagram of third embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Figure 13 is the moulded state schematic diagram of third embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Figure 14 is that reserved material calculates schematic diagram.
Figure 15 is the intermediateness schematic diagram of fourth embodiment of the invention manufacture solid flanges mouth body pulp vessel.
Embodiment
Pulp vessel of the invention based on solid flanges mouth body, improvement are that vessel port is outwardly formed solid flanges.If Count principle:Flange is according to the design requirement of product, in paper pulp wet embryo shaping stage, just reserves in advance the vessel port position more Carry out a part of paper pulp wet embryo, during thermocompression forming, the additional wet embryo in this part is squeezed into mold flanges position In forming cavity, the pulp vessel mouth flange different from pulp product body thickness is produced.
In order to realize manufacturing purpose, present invention also offers the manufacture mould of the pulp vessel based on solid flanges mouth body.
As shown in figures 2-6, mould includes punch-pin and cavity plate, before punch-pin includes middle part for preferred embodiment 1 and its manufacturing process The convex central punch part 1 for being used to form the cavity of container 6, and the rearmounted ring for being used to form pulp vessel mouth body flange in outside Shape convex portions 2.Central punch part 1 and ring-type convex portions 2 are split-type structural, and top connects respective to institute respectively State the executing agency of cavity plate direction propulsion(Not shown in figure).
Cavity plate includes coordinating the concave portions 4 of the central punch part 1, and the outside of concave portions 4 to be located at deep-slotted chip breaker It is outer that the elastic baffle ring 5 upspring to the direction of punch-pin ring-type convex portions 2 is set;Elastic baffle ring 5 and the concave portions 4 it Between form annular boss part 12.Wherein, the spring that the part of upspringing of elastic baffle ring 5 can be disposed in annular groove is realized.
In addition, the punch-pin ring-type convex portions 2 inside edge and the annular boss part 12 of the cavity plate 4 it is upper End face sets the deep-slotted chip breaker of composition 6 mouthfuls of body flange annular chambers of pulp vessel after mutually corresponding, docking respectively, as shown in figure 4, on Deep-slotted chip breaker 7 and lower arcuate slot 8.In process, feed bin 88 is stayed as illustrated, being formed.
Another preferred embodiment 2 and its manufacturing process, as is seen in figs 7-10, mould, including punch-pin and cavity plate.It is described Punch-pin includes middle part lordosis and is used to form the central punch part 1 of container cavity, and outside is rearmounted is used to form pulp vessel The ring-type convex portions 2 of mouth body flange;Central punch part 1 and ring-type convex portions 2 are split-type structural, and top connects respectively Meet the respective executing agency promoted to cavity plate direction;
Cavity plate includes coordinating the concave portions 4 of the central punch part 1;Concave portions 4 are located at vessel port solid flanges Lower arcuate slot 8 is provided with the outside of forming position;Cavity plate also includes being higher by the vessel port forming position connection lower arcuate slot 8 The entity part 14 in outside.
In addition, the sky between the ring-type convex portions 2 and cavity plate entity part 14 of punch-pin and punch-pin central punch part 1 Between be engaged, and the bottom of ring-type convex portions 2 be provided with it is corresponding with lower arcuate slot 8, docking after form pulp vessel mouth body The upper deep-slotted chip breaker 7 of flange annular chamber.In process, feed bin 88 is stayed as illustrated, being formed.
Another preferred embodiment 3 and its manufacturing process, as figs 11-13, positioned at vessel port forming part, punch-pin It is corresponding with cavity plate that the deep-slotted chip breaker for forming flange is set on the outside of vessel port.And punch-pin and cavity plate form container cavity and appearance The mould of device mouth flange is integral type structure.Punch-pin and the cavity plate side wall of two deep-slotted chip breakers and both sides forms molding During stay feed bin 88.
In addition, the 4th kind of embodiment of the invention, as shown in figure 15, the punch-pin is integral type structure, specifically includes middle part Before convex into the central punch part 1 of container cavity, and the rearmounted ring-type punch-pin portion for forming pulp vessel mouth body flange in outside Divide 2.In figure, central punch part 1 and ring-type convex portions 2 are integral type structure.And cavity plate includes coordinating central punch part 1 concave portions 4, and the outside of concave portions 4 are set to the direction bullet of punch-pin ring-type convex portions 2 in annular groove The elastic baffle ring 5 risen;Annular boss part is formed between elastic baffle ring 5 and the concave portions 4.Wherein, punch-pin ring-type punch-pin Mutually corresponding, docking is set respectively on the outside of the upper surface of the inner side lower edge of part 2 and the annular boss part of the cavity plate The deep-slotted chip breaker of pulp vessel mouth body flange is formed afterwards;And the madial wall of the elastic baffle ring 5 and the central punch part The side wall of feed bin is stayed described in 1 lateral wall composition.
Explanation is needed in above-described embodiment 1 and embodiment 2 a bit, central punch part 1 and ring-type convex portions 2 push away Enter stroke.
In embodiment 1, the elastic baffle ring 5 is upspring and forms the position of vessel port under state higher than concave portions 4, and Distance is higher by slightly larger than reserved wet length of stock.That is, upspringing under state, elastic baffle ring 5 and ring-type convex portions 2 are tight Close combination, so that it is guaranteed that in mold process, for wet blank all the time in closing space, waiting is pressed into solid flanges 9.
Same principle, in example 2, the distance that cavity plate entity part 14 is higher by vessel port forming position are slightly larger than Reserve wet length of stock.
Reserve wet length of stock L=s ρ/h;
Wherein:The sectional area of s--- flanges;
ρ --- flange relative to vessel density;
The thickness of h--- vessels.
That is the ratio between the product of the volume of flange and density and vessel thickness, the length of wet embryo material should exactly be reserved.
The paper pulp moulding product of prior art, 70% or so, thickness is typically left in 2-4 ㎜ for the water content of its l Water Paper embryo The right side, after hot pressing dehydration shaping, the thickness of pulp product is typically in 0.5-1.0 ㎜ or so.
In order to illustrate above-mentioned requirements, it is exemplified below, preproduction dixie cup flange, radius is 1 ㎜, it is assumed that the flange of making is close Degree is about the same with vessel, it is believed that is 1;Vessel thickness is generally 0.6 ㎜, then can be calculated by above formula The length for going out reserved wet embryo material is 3.14*12*1/0.6=5.2㎜。
Pulp vessel such as dixie cup etc., chamber wall is precipitous, and 80 ° are often greater than with plane included angle, usually 85 ° or so.
Exemplified by 80 °, such as Figure 14, during convex concave mould matched moulds, A points and B points overlap, and it is oblique to be promoted to upper/lower die in upper mould When interplanar distance is 3 ㎜, that is, when the thickness for assuming wet embryo is 3 ㎜, the vertical range of upper mould A points and B points is 3/cos80 °=17.24 Descend in the appearance feed bin of mould to accommodate down nearly 17 ㎜ wet embryo material, that is to say, that can have up to the wet embryo of nearly 17 ㎜ length It can be extruded into the flange chamber of mould.17 ㎜ are far longer than 5.2 ㎜, so can meet the production requirement of edge clipping completely. The flange of needs can now be made completely using the one-step method of embodiment 3 or 4.
And 3/cos45 °=4.24 ㎜ are less than 5.2 ㎜ when angle is 45 °, i.e. the wet embryo raw material of only 4 millimeters can For making flange, it is clear that needs can not be met.The two-step method of embodiment 1 or 2 can only be used to produce.
As can be seen here, according to the size of flange, the gradient of chamber wall, suitable processing method is selected to make flange.
One-step method:As shown in Figure 11-13 and Figure 15, a step extrusion forming is exactly hot pressing die by vessel hot pressing During shaping, while by flange also extrusion forming, appellation one-step method.When the angle of chamber wall is very big, its mould is connecing When contacting wet embryo, because its stroke is big, when can accommodate very big reserved material, it is processed using one-step method, it is simple and convenient.
Two-step method:After first pulp product body is pressed against, then the method that reserved wet embryo material is squeezed into flange.And When needing very big flange and the angle of chamber wall is small, during without big stroke, when can not accommodate many reserved material, no Can be one-time formed, two step extrusions can only be used.
Two step extrusions, it is first when wet embryo is molded, is required according to product design, reserved in the lugs position of container Go out the wet embryo of suitable length, when wet embryo is transferred to hot pressing die, additional wet embryo material is accommodated in the appearance material of lower mould first In storehouse, while product ontology elder generation is by upper mould thermocompression forming, the wet embryo material held in feed bin is just squeezed into flange.
Two-step method can use two kinds of mould structures to realize.A kind of is the baffle ring structure used such as example 1 above, such as Fig. 2-6, mold container oral area surrounding is with a circle blocking material ring under paper pulp hot pressing, and when upper and lower mould opens, blocking material ring is due to spring Effect, be raised in lower mould plane, height of projection is not less than the height for needing reserved wet embryo.
After the wet embryo of shaping is transferred to mould under hot pressing, upper mold body starts to push, and first extrudes pulp vessel body Firmly, then the flange formation mould coaxial with upper mold body pushes, and is contacted with baffle ring and promotes it to move downward, now upper and lower mould Tool is internally formed closing chamber, and paper pulp can not outwards overflow;Subsequent flange formation mould continues to push, and reserved wet embryo material is extruded Flange is formed in flange die cavity, container bottom and four walls are also extruded together simultaneously.
Another embedded structure used such as example 2 above, such as Fig. 7-10, the upper and lower mould normal occlusion of vessel Mould, the slip flange formation mould mould for being then bushed in mould push, and its external diameter is identical for the internal diameter in lower die orifice portion, sliding die Tool forms flange chamber with lower mould corresponding position, and sliding mould is pushed in reserved paper pulp wet embryo press-in flange chamber, forms paper pulp Flange.
Also semicircle groove is carved with corresponding to mouth position above flange formation mould, upper and lower matched moulds can form circle(Or Ellipse etc. is approximate circle).When upper mould pushes, unnecessary wet embryo can be compressed in default circular groove, formed solid Flange.The processing at other positions is identical with common paper pulp.
Paper pulp moulded container of the present invention, due to devising solid circles oral area, lid can be capped, so as to disposable Dixie cup is mutually general, and substitutes existing Disposable paper cup, reaches energy-conserving and environment-protective, reduces the purpose of cost.In addition, manufactured circle Shape or Ellipse Containers oral area, the problem of avoiding common pulp goodses cutting torch.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited to This, any one skilled in the art is in the technical scope of present disclosure, technique according to the invention scheme And its inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (4)

1. a kind of manufacture mould of the pulp vessel based on solid flanges mouth body, including punch-pin and cavity plate, the punch-pin and cavity plate The outside of corresponding vessel port forming position is set up and down with respect to the deep-slotted chip breaker for forming vessel port flange respectively;Two deep-slotted chip breakers Formed with punch-pin and the cavity plate side wall of both sides in mold process and stay feed bin;
The punch-die forms closed mould;The punch-pin and cavity plate form container cavity and the mould of vessel port flange is integrated Formula structure;It is characterized in that:
The punch-pin includes middle part lordosis and is used to form the central punch part (1) of container cavity, and outside is rearmounted is used for shape Into the ring-type convex portions (2) of pulp vessel mouth body flange;The central punch part (1) and the ring-type convex portions (2) For split-type structural, top connects the respective executing agency promoted to the cavity plate direction respectively;
The cavity plate includes coordinating the concave portions (4) of the central punch part (1);The concave portions (4) are located at container Lower arcuate slot (8) is provided with the outside of mouth solid flanges forming position;The cavity plate also includes being higher by vessel port forming position company Connect the entity part (14) on the outside of the lower arcuate slot (8).
2. the manufacture mould of the pulp vessel according to claim 1 based on solid flanges mouth body, it is characterised in that described convex Space between the ring-type convex portions (2) of mould and the cavity plate entity part (14) and the punch-pin central punch part (1) Be engaged, and the bottom of the ring-type convex portions (2) be provided with it is corresponding with the lower arcuate slot (8), docking after form paper Starch the upper deep-slotted chip breaker (7) of vessel port body flange.
3. a kind of manufacture mould of the pulp vessel based on solid flanges mouth body, including punch-pin and cavity plate, the punch-pin and cavity plate The outside of corresponding vessel port forming position is set up and down with respect to the deep-slotted chip breaker for forming vessel port flange respectively;Two deep-slotted chip breakers Formed with punch-pin and the cavity plate side wall of both sides in mold process and stay feed bin;
The punch-die forms closed mould;The punch-pin and cavity plate form container cavity and the mould of vessel port flange is integrated Formula structure;It is characterized in that:
Central punch part (1) of the punch-pin including convexing into container cavity before middle part, and the rearmounted formation paper pulp accommodating in outside The ring-type convex portions (2) of device mouth body flange;The central punch part (1) and the ring-type convex portions (2) are split type Structure, top connect the respective executing agency promoted to the cavity plate direction respectively;
The cavity plate includes coordinating the concave portions (4) of the central punch part (1), and on the outside of the concave portions (4) The elastic baffle ring (5) upspring to punch-pin ring-type convex portions (2) direction is set in annular groove;The elastic baffle ring (5) annular boss part (12) are formed between the concave portions (4).
4. the manufacture mould of the pulp vessel according to claim 3 based on solid flanges mouth body, it is characterised in that described convex Set respectively on the outside of the upper surface of the inner side lower edge of modular ring shape convex portions (2) and the annular boss part (12) of the cavity plate Put the mutual deep-slotted chip breaker for corresponding to, pulp vessel mouth body flange being formed after docking;And the madial wall of the elastic baffle ring (5) with The side wall of feed bin is stayed described in the lateral wall composition of the central punch part (1).
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Inventor after: Ji Mingfei

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Inventor after: Jiang Feng

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