CN111571984A - Mold for producing hollow foamed floor - Google Patents
Mold for producing hollow foamed floor Download PDFInfo
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- CN111571984A CN111571984A CN202010447239.9A CN202010447239A CN111571984A CN 111571984 A CN111571984 A CN 111571984A CN 202010447239 A CN202010447239 A CN 202010447239A CN 111571984 A CN111571984 A CN 111571984A
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- inner core
- core rod
- outer core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/732—Floor coverings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a mould for producing hollow foamed floor; belongs to the technical field of foaming floor moulds. The mold is a co-extrusion mold and comprises a mold shell, an inner core rod and an outer core rod, and a main flow passage and an auxiliary flow passage are arranged in the mold shell; the inner core rod and the outer core rod are both arranged in the main runner, and the outer core rod is sleeved on the periphery of the inner core rod; the inner core rod comprises an inner core base body, a plurality of inner core mounting feet and a plurality of inner core rod bodies; the outer core rod comprises an outer core shell and a plurality of outer core mounting feet; a plurality of in-core die cavities are arranged in the outer core shell, and adjacent in-core die cavities are separated by an isolation support plate; the number of the die cavities in the core corresponds to the number of the inner core rod bodies, and the inner core rod bodies are suspended and sleeved in the die cavities in the core. The combined structure of the inner core rod and the outer core rod can buffer the foaming material when the foaming material is transited to the foaming cavity, and can foam in a limited and controlled manner, thereby improving the quality stability of the product.
Description
Technical Field
The invention relates to a mould, in particular to a mould for producing a hollow foaming floor; belongs to the technical field of foaming floor moulds.
Background
At present, the mould for extruding the PVC co-extrusion hollow foaming floor in the industry is only one type, for example, the Chinese invention patent with the application number of 201510767865.5 discloses a mould for manufacturing the wood-plastic floor, which comprises a mould body provided with a raw material inlet, a shell cover provided with a raw material outlet, a flow choking rod and a flow limiting cover; one end of the flow blocking rod is connected to a raw material inlet of the die body through a fixing body, and the other end of the flow blocking rod extends out of a raw material outlet of the shell cover; one end of the flow limiting cover is in seamless connection with the raw material inlet, and the other end of the flow limiting cover is in seamless connection with the raw material outlet; the raw material inlet is larger than the raw material outlet, so that a reducing channel is formed inside the flow limiting cover; the flow blocking rod is provided with a plurality of flow blocking rods; the fixed bodies are also provided with a plurality of fixed bodies, any two adjacent fixed bodies form a bridging above the choke rod or below the choke rod, and the two fixed bodies are connected to the die body through another fixed body at the bridging position; the end surface of the fixing body facing the tapered channel forms a flow guide part; the flow guide part is composed of a pair of inclined surfaces, and the intersection of the inclined surfaces is in a blade shape; the inclined plane forming the flow guide part is a vertical inclined plane; the inclined planes forming the flow guide part are symmetrical; the length of the flow blocking rod extending out of the raw material outlet is not less than the length of the tapered channel. The function of the core rod is to form a hollow structure in the final product. Generally, such molds are suitable for making non-foamed or low-foamed products. However, if such a mold is used to manufacture a highly foamed product having a hollow structure, various problems are encountered. Such as: the board will continue to foam and expand after extruding out of the die opening, resulting in serious deformation of the inner hole; and because be hollow core slab, there is a plurality of bearing structure inside the panel, bearing structure has the support to the face, and the face that corresponds hollow position does not receive the support, under this condition, crowd the back altogether, crowd the material altogether to the primary backing be stressful, because the face different positions receive the support condition different, pressure will distribute inhomogeneous, crowd the layer and will appear the inconsistent condition of thickness altogether, the condition that the substrate sinks appears even. In the final production, only materials with low foaming agent can be used for production, so that the adverse effects are reduced or eliminated; however, the density of the product is increased, the weight of the product is increased, and the advantages of the hollow slab cannot be exerted.
Disclosure of Invention
The present invention is to solve the above problems, and thus provides an extrusion die for producing a hollow foamed sheet. The extrusion die can be used for producing the high-foaming co-extruded sheet material with a hollow structure. And the extruded plate has the advantages of uniform foaming, uniform thickness of the co-extrusion layer, difficult cracking of the co-extrusion layer and the core layer of the plate, and high structural strength of the whole plate.
The technical scheme for solving the problems is as follows:
a mould for producing the hollow foamed floor, the said mould is a coextrusion mould, including mould shell, inner core rod and outer core rod, there are main runner that supplies raw materials comprising foaming agent to form the sandwich layer of the board to circulate and supplies to form the supplementary runner that the raw materials of the foaming agent-free of the surface layer of the board circulates in the mould shell; the inner core rod and the outer core rod are both arranged in the main runner, and the outer core rod is sleeved on the periphery of the inner core rod; the inner core rod comprises an inner core base body, a plurality of inner core mounting feet arranged on the inner core base body and used for being connected with the formwork and a plurality of inner core rod bodies arranged on the inner core base body side by side; the outer core rod comprises a box-shaped outer core shell with openings at two ends and a plurality of outer core mounting feet which are arranged on the outer core shell and used for being connected with the formwork; a plurality of in-core die cavities are arranged in the outer core shell, and adjacent in-core die cavities are separated by an isolation support plate; the number of the inner core die cavities corresponds to that of the inner core rod bodies, the inner core rod bodies are suspended and sleeved in the inner core die cavities, and the tail ends of the inner core rod bodies extend out of the inner core die cavities; the tail end of the inner mandrel body also extends out of a die orifice of the die.
Preferably, the inner core rod has a greater length than the outer core rod.
Preferably, the inner core mounting legs of the inner core rod are arranged on the upper surface and the lower surface of the inner core base body, and the inner core mounting legs on the upper surface and the inner core mounting legs on the lower surface are arranged in a staggered manner in the left-right direction; the outer core mounting legs of the outer core rod are arranged on the upper surface and the lower surface of the outer core shell, and the outer core mounting legs on the upper surface and the outer core mounting legs on the lower surface are arranged in a staggered mode in the left-right direction; the outer core mounting leg and the inner core mounting leg are arranged in a staggered mode in the front-rear direction.
Preferably, the inner core rod body is arranged at the rear end of the inner core base body; the inner core mounting feet are arranged on the upper surface and the lower surface of the front end of the inner core base body.
Preferably, a first dovetail groove is formed in the inner wall of the formwork, and the inner core mounting foot is mounted on the first dovetail groove; a second dovetail groove is formed in the inner wall of the formwork, and the outer core mounting foot is mounted on the second dovetail groove; the first dovetail groove is arranged in front of the second dovetail groove.
Preferably, the two side ends of the outer core shell are provided with tongue-and-groove structures, one side end of each tongue is a tenon, the other side end of each tongue is a groove, and the tenons are matched with the groove structures.
Preferably, the upper and lower surfaces of the outer core shell extend out of at least a discharge port of the mold-side runner.
Preferably, the front end of the outer core shell is provided with a concave part, two side ends of the concave part are residual parts, and the residual parts extend out of a die orifice of the die.
In the scheme of the invention, the terms of directions such as front, back, left and right are defined according to the production process, namely, one end of the extruder for feeding is the front end, and one end of the die outlet is the rear end.
Preferably, the inner core rod is provided with a hollow structure, and the hollow structure is a cooling channel.
In conclusion, the invention has the following beneficial effects:
1. the invention adopts a combined structure of an inner core rod and an outer core rod, wherein the end part of the inner core rod extends out of the outlet of the die and is used for forming a hollow structure of a plate; the box-shaped outer core rod is sleeved on the periphery of the inner core rod and is also arranged in the main flow channel, so that the box-shaped outer core rod has a considerable space occupying effect on a melting material (hereinafter referred to as a foaming material) containing a high-content foaming agent, the distribution quantity of the foaming material in the main flow channel is reduced, and the foaming degree is improved; meanwhile, the combined structure of the inner core rod and the outer core rod can also generate certain flow limiting and flow guiding effects on the distribution of the foaming material in the main runner, so that the foaming uniformity is improved; namely, the combined structure of the inner core rod and the outer core rod can buffer the foaming material when the foaming material is transited to the foaming cavity, and can foam in a limited and controlled manner, so that the quality stability of the product is improved;
2. the co-extrusion coating can be regarded as a process that a melting material (hereinafter referred to as surface layer melting material) forming the surface layer of the plate is loaded to the periphery of a basically formed core layer, then passes through a die cavity and is extruded from a die opening together; after co-extrusion, the product is basically shaped; when the problem that the thickness of the surface layer (co-extrusion layer) of the plate is not consistent is solved, and when the high-foaming core layer with a hollow structure is subjected to co-extrusion coating, the box-shaped outer core rod is utilized, the length of the outer core rod is properly adjusted and controlled, so that the front end of the outer core rod extends out of an outlet of an auxiliary flow channel, when surface layer melt materials are loaded to the periphery of the core layer, in the molding process in a mold cavity, the pressure formed by the surface layer melt materials on the core layer is at least borne by the outer core rod in the early stage, and the pressure contains impact pressure and mold cavity pressure in the early stage; die cavity pressure is the intrinsic pressure that is generally considered to be generated by both the main extruder and the auxiliary extruder, but the main extruder predominates; the impact pressure is usually generated by an auxiliary extruder and mainly used for feeding surface layer molten materials; and the directions of the cavity pressure and the impact pressure are different; the outer core rod effectively reduces the influence of impact pressure on the core layer of the plate, so that the direction of the pressure applied to the product is more stable, the magnitude of the applied pressure is more stable, and the fluctuation of the applied pressure is more stable during co-extrusion coating forming of the product, thereby greatly improving the thickness uniformity of the co-extrusion layer of the product and improving the quality stability of the product;
3. the flow velocity of the molten material in the main runner is usually uneven, the flow velocity is fastest near the middle area, and the flow velocity is slower near the edge area, because the extrusion die in the prior art only has an inner core rod, and the interval between the inner core rod and the inner wall of the main runner is larger, the situation of uneven flow velocity is easy to occur, which has certain influence on the molding of the core layer structure of the product, even if the problem can not be seen during the extrusion of the product, the problem of deformation, such as warping, is easy to occur during the use; the invention adopts the combined structure of the inner core rod and the outer core rod, so that the analysis on the structure of the product shows that the foaming material mainly comes from the gap between the inner core rod and the outer core rod (hereinafter referred to as a first gap) in the molding process of the inner half part of the core layer structure of the product from inside to outside; in the outer half part of the core layer structure of the product from inside to outside, in the forming process, foaming materials mainly come from a gap (hereinafter referred to as a second gap) between an outer core rod and the inner wall of the main runner; because the foaming material has good fluidity, the invention divides the inner space of the main runner into the first gap and the second gap, so that the flow rate of the foaming material is reduced to a certain extent, and the speed difference problem of the flow rate is obviously controlled; thereby improving the quality stability of the product;
5. the remaining part of the invention is arranged at the die opening, and the concave part extends out of the die opening; the product of the invention is not a complete structure when just extruded, because the arrangement of the residual part and the concave part leads the surface layer and the core layer of the product not to be combined together well; the high foaming product of the product can continue to slowly foam at residual temperature after being extruded from a die opening, and the slow subsequent foaming can solve the problem of incomplete compounding of the core layer and the surface layer; the arrangement of the invention can better balance the effect, so that the product keeps the capability of continuous foaming after being extruded, and the product can continuously grow, and the design effectively improves the release of internal stress and further improves the stability of the product;
6. according to the combined structure of the inner core rod and the outer core rod, the inner core rod extends out of the die opening, so that the structure of the inner core rod has a decisive influence on the structure of a product during final forming of the product, and the structure of the inner core rod corresponds to the product and is a hollow structure of the product; the structure of the outer core rod cannot correspond to the structure of the product; but the combined structure of the inner core rod and the outer core rod has great effect on the quality of products.
Drawings
FIG. 1 is a three-dimensional view of the inner core rod of the present invention;
FIG. 2 is a three-dimensional view of an outer core rod of the present invention;
FIG. 3 is a schematic view of the assembled structure of the inner and outer core rods of the present invention;
FIG. 4 is a schematic structural view of the mold of the present invention;
FIG. 5 is a schematic structural view of a product made using the mold of the present invention;
in the figure, 1-inner core rod, 2-outer core rod;
11-inner core matrix, 12-inner core rod body and 13-inner core mounting foot;
12.1-cooling channels;
21-outer core shell, 22-outer core mounting feet;
21.1-in-core die cavity, 21.2-isolation support plate, 21.3-tenon, 21.4-groove, 21.5-indentation and 21.6-residual part;
100-skin, 200-core, 102-first color skin, 102-second color skin.
Detailed Description
The invention is further explained below with reference to the drawings.
This detailed description is to be construed as illustrative only and is not limiting, since any changes made by those skilled in the art after reading the present specification will be protected by the patent laws within the scope of the appended claims.
As shown in fig. 5, a PVC foam flooring having a rigid plastic surface layer 100 and a PVC foam core layer 200, wherein the density of the whole flooring is in a high-density thin-film; the thickness of the surface layer is 3 mm; the core layer 200 also has a hollow structure. Wherein the skin layer 100 comprises a two-layer structure, wherein, viewed from the outside to the inside, the first layer is a first color skin layer 101, and the second layer is a second color skin layer 102. In this embodiment, the surface layer 100 is designed as two color surface layers based on appearance requirements. The floor just coming out of the mould is in fact a semi-finished product, which is shown in fig. 5. Further subsequent operations are required: after the mold is taken out of the plate, a roller engraving machine is used for engraving wood grains on the surface of the floor, part of the first color surface layer 101 is engraved under the second surface layer 102 to form an original shape of the wood grains, then the first color surface layer 101 is ground by a grinding machine, and at the moment, the first color surface layer 101 engraved under the second color surface layer 102 and the second color surface layer 102 which is not ground form the wood grains together.
As shown in fig. 3 and 4, a mold for producing a hollow foamed floor is a co-extrusion mold, and includes a mold shell, an inner core rod 1 and an outer core rod 2, wherein a main channel for circulating a raw material containing a foaming agent and forming a core layer of a sheet material, and an auxiliary channel for circulating a raw material containing no foaming agent and forming a surface layer of the sheet material are provided in the mold shell. The inner core rod 1 and the outer core rod 2 are both arranged in the main runner, and the outer core rod 2 is sleeved on the periphery of the inner core rod 1.
As shown in fig. 1, the inner core rod 1 includes a core base 11, a plurality of core mounting legs 13 disposed on the core base 11 for connecting with the formwork, and a plurality of core rod bodies 12 disposed side by side on the core base 11. The inner mandrel body 12 is arranged at the rear end of the inner mandrel base body 11; the inner core mounting legs 13 are disposed on the upper and lower surfaces of the front end of the inner core base 11. The inner core mounting legs 13 of the inner core rod 1 are arranged on the upper and lower surfaces of the inner core base body 11, and the inner core mounting legs 13 on the upper surface and the inner core mounting legs 13 on the lower surface are arranged in a staggered manner in the left-right direction; the outer core mounting legs 22 of the outer core rod 2 are provided on the upper and lower surfaces of the outer core housing 21, and the outer core mounting legs 22 on the upper surface and the outer core mounting legs 22 on the lower surface are offset in the left-right direction. The inner core rod 1 is provided with a hollow structure, and the hollow structure is a cooling channel 12.1.
As shown in fig. 2, the outer core rod 2 comprises a box-shaped outer core shell 21 with two open ends and a plurality of outer core mounting feet 22 arranged on the outer core shell 21 and used for connecting with the formwork; the outer core shell 21 is internally provided with a plurality of inner core mold cavities 21.1, and adjacent inner core mold cavities 21.1 are separated by an isolation support plate 21.2. The front end of the outer core shell 21 is provided with a concave part 21.5, two side ends of the concave part 21.5 are remaining parts 21.6, and the remaining parts 21.6 extend out of a die opening of the die.
As shown in fig. 3, the number of the in-core mold cavities 21.1 corresponds to the number of the inner core rod bodies 12, and the inner core rod bodies 12 are suspended and sleeved in the in-core mold cavities 21.1.
With reference to figures 1, 2 and 4, it can be seen that the ends of the inner core rod body 12 extend beyond the said in-core mould cavity 21.1; the tail end of the inner mandrel body 12 also extends out of the die orifice of the die. The inner core rod 1 has a greater length than the outer core rod 2. The upper and lower surfaces of the outer core shell 21 at least extend out of the discharge port of the auxiliary runner of the mold.
Referring to fig. 1 and 3, the outer core mounting leg 22 and the inner core mounting leg 13 are arranged in a staggered manner in the front-rear direction. A first dovetail groove is formed in the inner wall of the formwork, and the inner core mounting foot 13 is mounted in the first dovetail groove; a second dovetail groove is formed in the inner wall of the formwork, and the outer core mounting foot 22 is mounted in the second dovetail groove; the first dovetail groove is arranged in front of the second dovetail groove.
As shown in fig. 3, the two side ends of the outer core shell 21 are provided with tongue-and-groove structures, one side end is a tenon 21.3, the other side end is a groove 21.4, and the tenon 21.3 is structurally matched with the groove 21.4.
In this embodiment, the number of the auxiliary flow channels is two, and the two auxiliary flow channels are respectively a first auxiliary flow channel and a second auxiliary flow channel; the first auxiliary flow channel is used for the circulation of raw materials forming the first color surface layer of the plate; the second auxiliary flow channel is used for the circulation of raw materials forming the second color surface layer of the plate; the first color surface layer and the second color surface layer jointly form a surface layer of the plate.
Claims (10)
1. A mould for producing hollow foaming floor is characterized in that: the die is a co-extrusion die and comprises a die shell, an inner core rod (1) and an outer core rod (2), wherein a main runner for circulating a raw material containing a foaming agent and forming a plate core layer and an auxiliary runner for circulating a raw material containing no foaming agent and forming a plate surface layer are arranged in the die shell; the inner core rod (1) and the outer core rod (2) are both arranged in the main runner, and the outer core rod (2) is sleeved on the periphery of the inner core rod (1); the inner core rod (1) comprises an inner core base body (11), a plurality of inner core mounting feet (13) arranged on the inner core base body (11) and used for being connected with the formwork, and a plurality of inner core rod bodies (12) arranged on the inner core base body (11) side by side; the outer core rod (2) comprises a box-shaped outer core shell (21) with two open ends and a plurality of outer core mounting feet (22) which are arranged on the outer core shell (21) and are used for being connected with the formwork; a plurality of inner core die cavities (21.1) are arranged in the outer core shell (21), and adjacent inner core die cavities (21.1) are separated by isolating support plates (21.2); the number of the inner core die cavities (21.1) corresponds to the number of the inner core rod bodies (12), the inner core rod bodies (12) are suspended and sleeved in the inner core die cavities (21.1), and the tail ends of the inner core rod bodies (12) extend out of the inner core die cavities (21.1); the tail end of the inner core rod body (12) also extends out of a die orifice of the die.
2. The mold for producing a hollow foamed floor according to claim 1, wherein: the inner core rod (1) has a greater length than the outer core rod (2).
3. The mold for producing a hollow foamed floor according to claim 1, wherein: the inner core installation legs (13) of the inner core rod (1) are arranged on the upper surface and the lower surface of the inner core base body (11), and the inner core installation legs (13) on the upper surface and the inner core installation legs (13) on the lower surface are arranged in a staggered mode in the left-right direction; a plurality of outer core mounting legs (22) of the outer core rod (2) are arranged on the upper surface and the lower surface of the outer core shell (21), and the outer core mounting legs (22) on the upper surface and the outer core mounting legs (22) on the lower surface are arranged in a staggered manner in the left-right direction; the outer core mounting leg (22) and the inner core mounting leg (13) are arranged in a staggered mode in the front-back direction.
4. A mold for producing a hollow foamed floor according to claim 3, wherein: the inner core rod body (12) is arranged at the rear end of the inner core base body (11); the inner core mounting feet (13) are arranged on the upper surface and the lower surface of the front end of the inner core base body (11).
5. A mold for producing a hollow foamed floor according to claim 3, wherein: a first dovetail groove is formed in the inner wall of the formwork, and an inner core mounting foot (13) is mounted in the first dovetail groove; a second dovetail groove is formed in the inner wall of the formwork, and an outer core mounting foot (22) is mounted on the second dovetail groove; the first dovetail groove is arranged in front of the second dovetail groove.
6. A mold for producing a hollow foamed floor according to claim 3, wherein: the outer core shell is characterized in that mortise structures are arranged at two side ends of the outer core shell (21), one side end of the outer core shell is a tenon (21.3), the other side end of the outer core shell is a groove (21.4), and the tenon (21.3) is structurally matched with the groove (21.4).
7. A mold for producing a hollow foamed floor according to claim 2, wherein: and the upper surface and the lower surface of the outer core shell (21) at least extend out of a discharge hole of the auxiliary runner of the mold.
8. The mold for producing a hollow foamed floor according to claim 7, wherein: the number of the auxiliary flow channels is two, and the two auxiliary flow channels are respectively a first auxiliary flow channel and a second auxiliary flow channel; the first auxiliary flow channel is used for the circulation of raw materials forming the first color surface layer of the plate; the second auxiliary flow channel is used for the circulation of raw materials forming the second color surface layer of the plate; the first color surface layer and the second color surface layer jointly form a surface layer of the plate.
9. A mold for producing a hollow foamed floor according to claim 3, wherein: the front end of outer core shell (21) is provided with indentation (21.5), both sides end of indentation (21.5) is surplus portion (21.6), surplus portion (21.6) extend the die orifice of mould.
10. The mold for producing a hollow foamed floor according to claim 1, wherein: the inner core rod (1) is provided with a hollow structure, and the hollow structure is a cooling channel (12.1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447239.9A CN111571984B (en) | 2020-05-25 | 2020-05-25 | Mold for producing hollow foamed floor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447239.9A CN111571984B (en) | 2020-05-25 | 2020-05-25 | Mold for producing hollow foamed floor |
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| CN111571984A true CN111571984A (en) | 2020-08-25 |
| CN111571984B CN111571984B (en) | 2022-09-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021837A (en) * | 2021-03-25 | 2021-06-25 | 安徽森泰木塑集团股份有限公司 | Solid foaming board extrusion die with co-extrusion reinforcing material |
| CN113459454A (en) * | 2021-06-09 | 2021-10-01 | 安徽森泰木塑科技地板有限公司 | Reinforced foamed floor, extrusion die and equipment set for preparing same |
| CN113733610A (en) * | 2021-08-17 | 2021-12-03 | 安徽森泰木塑科技地板有限公司 | Production method of high-modulus PVC (polyvinyl chloride) foamed sheet |
| CN113844004A (en) * | 2021-10-27 | 2021-12-28 | 安吉正源塑木装饰材料有限公司 | Preparation mold and preparation method of PVC (polyvinyl chloride) foamed floor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113021837A (en) * | 2021-03-25 | 2021-06-25 | 安徽森泰木塑集团股份有限公司 | Solid foaming board extrusion die with co-extrusion reinforcing material |
| CN113459454A (en) * | 2021-06-09 | 2021-10-01 | 安徽森泰木塑科技地板有限公司 | Reinforced foamed floor, extrusion die and equipment set for preparing same |
| CN113459454B (en) * | 2021-06-09 | 2022-03-11 | 安徽森泰木塑科技地板有限公司 | Reinforced foamed floor, extrusion die and equipment set for preparing same |
| WO2022257233A1 (en) * | 2021-06-09 | 2022-12-15 | 安徽森泰木塑科技地板有限公司 | Reinforced foaming floor, and extrusion die and equipment group for preparation of reinforced foaming floor |
| CN113733610A (en) * | 2021-08-17 | 2021-12-03 | 安徽森泰木塑科技地板有限公司 | Production method of high-modulus PVC (polyvinyl chloride) foamed sheet |
| CN113844004A (en) * | 2021-10-27 | 2021-12-28 | 安吉正源塑木装饰材料有限公司 | Preparation mold and preparation method of PVC (polyvinyl chloride) foamed floor |
| CN113844004B (en) * | 2021-10-27 | 2023-10-13 | 安吉正源塑木装饰材料有限公司 | Preparation mold and preparation method of PVC (polyvinyl chloride) foamed floor |
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