CN112092323A - Hard composite fire-proof strip, manufacturing method and manufacturing device thereof - Google Patents
Hard composite fire-proof strip, manufacturing method and manufacturing device thereof Download PDFInfo
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- CN112092323A CN112092323A CN202010936077.5A CN202010936077A CN112092323A CN 112092323 A CN112092323 A CN 112092323A CN 202010936077 A CN202010936077 A CN 202010936077A CN 112092323 A CN112092323 A CN 112092323A
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- strip
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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
- B29C48/06—Rod-shaped
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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
- B29C48/304—Extrusion nozzles or dies 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Building Environments (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a hard composite fire-proof strip, a manufacturing method and a manufacturing device thereof, which comprise a forming die and a sizing die, wherein the sizing die is connected with the discharge end of the forming die, a shell material forming flow passage for introducing shell materials and a core material forming flow passage for introducing core materials are arranged in the forming die, the shell material forming flow passage surrounds the outer side of the core material forming flow passage, so that the core materials and the shell materials are continuously extruded from the discharge end of the forming die together, and are introduced into the sizing die for cooling and sizing. The shell material and the core material are respectively injected into the shell material forming flow passage and the core material forming flow passage, and the core material and the shell material are continuously extruded from the discharge end of the forming die together, so that the one-step forming for manufacturing the hard composite fireproof strip is realized, the production efficiency is improved, the labor cost is reduced, the core material can be prevented from being broken when the core material is injected, a filling gap is generated, the product quality is improved, and the method has the advantages of easiness in operation and simplicity and reliability in manufacturing.
Description
Technical Field
The invention relates to the technical field of fireproof equipment manufacturing, in particular to a hard composite fireproof strip, a manufacturing method and a manufacturing device thereof.
Background
The fire-proof strip is mainly used at the connection part of the entrance of doors and windows. When a fire disaster occurs, the carbon foam formed by the rubber strip when meeting thermal expansion has viscosity, does not ash and run off or fall off, and has slow burning speed. The expansion area is large, can be enlarged to 15-20 times of the original expansion area, can be expanded in all directions or in main one-way, completely fills gaps around, forms a good heat insulation layer, effectively blocks the spread of dense smoke, toxic gas, fire behavior and hot gas of a fire disaster, and creates an effective fire-proof and smoke-proof barrier.
Traditional fire prevention strip, simple structure, the style is single, is difficult to adapt to the complex environment of various differences. The composite fire-proof strip has various styles and can adapt to various complex environments, but the composite fire-proof strip is difficult to manufacture and form at one time, and the core material is difficult to continuously fill due to long and narrow core material containing cavities when the core material of the composite fire-proof strip is filled, and the manufacturing difficulty is high and the manufacturing cost is high.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a hard composite fire-proof strip which can be formed at one time, is filled with full core material and is easy to manufacture and implement, a manufacturing method thereof and a manufacturing device thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the manufacturing device comprises a forming die and a sizing die, wherein the sizing die is connected with the discharge end of the forming die, a shell forming flow channel for introducing shell materials and a core material forming flow channel for introducing core materials are arranged in the forming die, the shell forming flow channel surrounds the outer side of the core material forming flow channel, so that the core materials and the shell materials are continuously extruded from the discharge end of the forming die together, and the core materials and the shell materials are introduced into the sizing die for cooling and shaping.
As a further improvement of the above technical solution:
the forming die comprises a connecting seat and a forming part, the forming part comprises a distributing cone, a taper sleeve and a shaping plate, the distributing cone is sleeved in the connecting seat, the taper sleeve is sleeved on the distributing cone and tightly supports the distributing cone, and the shaping plate is fixedly arranged on the connecting seat and tightly supports the taper sleeve.
The split-type hard rubber forming runner is arranged at one end of the material splitting cone, the integral-type hard rubber forming runner is enclosed by the other end of the material splitting cone and the cone sleeve, the integral-type hard rubber forming runner is communicated with the split-type hard rubber forming runner, and a core material forming runner is arranged in the material splitting cone.
The shaping plate is provided with a shaping channel communicated with the discharge end of the material distributing cone.
And a soft rubber forming flow channel is arranged on one side of the shaping channel and is communicated with the shaping channel.
The shaping mold is provided with a cooling shaping channel corresponding to a shaping flow channel of the shaping mold.
The forming part is sleeved with a heater.
A manufacturing method of the hard composite fireproof strip based on the manufacturing device comprises the following steps:
s1: preparing materials, namely preparing a shell material and a core material into a molten state and connecting the shell material and the core material to a feeding hole of a forming die;
s2: extruding, namely injecting the shell material and the core material into a forming die from a feeding hole on the forming die respectively, so that the shell material is divided and surrounds the periphery of the core material, the shell material is gradually integrated and envelops the core material along with the propelling of the shell material, and finally the shell material and the core material extend out from a discharging hole together;
s3: and (5) shaping, namely introducing the product at the discharge port into a shaping mold to be cooled until the product is shaped.
As a further improvement of the above technical solution:
in step S2, the mold is heated and kept warm.
In step S3, cooling is performed by a slow cooling method.
The shell material comprises hard gum and soft gum, and the core material is expanded graphite.
A hard composite fire-proof strip is manufactured by the manufacturing device.
A hard composite fire-proof strip is prepared by the manufacturing method.
Compared with the prior art, the invention has the advantages that:
according to the manufacturing device of the hard composite fire-proof strip, the shell material and the core material are respectively injected into the shell material forming flow passage and the core material forming flow passage, and the core material and the shell material are continuously extruded from the discharge end of the forming die together, so that one-step forming of manufacturing the hard composite fire-proof strip is realized, the production efficiency is improved, and the labor cost is reduced. And the core material can be prevented from being broken when being injected, so that a filling gap is generated, and the product quality is improved.
The manufacturing method of the hard composite fire-proof strip is based on the manufacturing device of the hard composite fire-proof strip, so that the manufacturing device has the advantages of being easy to operate and simple and reliable to manufacture.
Drawings
Fig. 1 is a schematic sectional structure view of a manufacturing apparatus of a hard composite fire protection strip.
Fig. 2 is a schematic sectional view of the forming die.
Fig. 3 is a schematic sectional structure view of the material distribution cone.
Fig. 4 is a side view structure diagram of the material distributing cone.
Fig. 5 is a schematic front view of the sizing plate of embodiment 1.
Fig. 6 is a schematic cross-sectional structure view of the sizing plate of embodiment 1.
Fig. 7 is a front view structural diagram of the sizing plate of embodiment 2.
Fig. 8 is a schematic sectional structure view of the sizing plate of embodiment 2.
Fig. 9 is a schematic front view of the sizing die of embodiment 1.
Fig. 10 is a schematic front view of the sizing die of embodiment 2.
Fig. 11 is a schematic sectional structure view of the sizing die.
Illustration of the drawings:
1. forming a mould; 11. a shell material forming flow channel; 111. forming a runner by hard rubber; 112. a soft glue forming flow channel; 12. a core material forming flow channel; 13. a connecting seat; 14. a molding section; 141. a material separating cone; 142. a taper sleeve; 143. shaping plates; 1431. a shaping channel; 2. shaping a mould; 21. cooling and shaping the channel; 3. a heater.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1, the manufacturing apparatus for a hard composite fire-proof strip of the present embodiment includes a forming die 1 and a sizing die 2, the sizing die 2 is connected to a discharge end of the forming die 1, a shell forming flow channel 11 for introducing a shell material and a core forming flow channel 12 for introducing a core material are provided in the forming die 1, the shell forming flow channel 11 surrounds the outside of the core forming flow channel 12, so that the core material and the shell material are continuously extruded from the discharge end of the forming die 1 together, and are introduced into the sizing die 2 for cooling and sizing. The shell material and the core material are respectively injected into the shell material forming runner 11 and the core material forming runner 12, and the core material and the shell material are continuously extruded from the discharge end of the forming die 1 together, so that the one-step forming for manufacturing the hard composite fireproof strip is realized, the production efficiency is improved, and the labor cost is reduced. And the core material can be prevented from being broken when being injected, so that a filling gap is generated, and the product quality is improved.
As shown in fig. 2, in this embodiment, the forming mold 1 includes a connecting seat 13 and a forming portion 14, the forming portion 14 includes a distributing cone 141, a cone sleeve 142 and a shaping plate 143, the distributing cone 141 is sleeved in the connecting seat 13, the cone sleeve 142 is sleeved on the distributing cone 141 and supports against the distributing cone 141, and the shaping plate 143 is fixedly mounted on the connecting seat 13 and supports against the cone sleeve 142. The material distributing cone 141 is used for uniformly dispersing the shell materials to the periphery of the core materials, the shaping plate 143 is fixedly connected with the connecting seat 13 and tightly supports the taper sleeve 142, so that the taper sleeve 142 tightly supports the material distributing cone 141 and the material distributing cone 141 is prevented from moving.
As shown in fig. 3 and 4, in this embodiment, one end of the material dividing cone 141 is provided with a split hard glue forming flow channel 111, the other end of the material dividing cone and the cone sleeve 142 enclose the split hard glue forming flow channel 111, the integral hard glue forming flow channel 111 is communicated with the split hard glue forming flow channel 111, and the shell material passes through the split hard glue forming flow channel 111 and then is introduced into the integral hard glue forming flow channel 111, so that the shells are connected and closed. The core material forming flow passage 12 is arranged in the material separating cone 141, so that the core material can be conveniently introduced into the center of the shell material.
As shown in fig. 5 and 6, in the present embodiment, the shaping plate 143 is provided with a shaping passage 1431 communicated with the discharging end of the distributing cone 141. The shaping channel 1431 is used for shaping the hard composite fire-proof strip made at the discharge end of the material-separating cone 141 again.
As shown in fig. 7 and 8, in this embodiment, a soft glue forming flow channel 112 is disposed at one side of the sizing channel 1431, and the soft glue forming flow channel 112 is communicated with the sizing channel 1431. And (3) introducing the soft glue into the soft glue forming flow channel 112 and communicating the soft glue to one side of the shaping channel 1431, so that the soft glue is adhered to the surface of one side of the hard glue, is extruded and formed along with the soft glue forming flow channel 112, and is finally pushed to the discharge end together to prepare the hard composite fireproof strip.
As shown in fig. 9 to 11, in the present embodiment, the shaping mold 2 has a cooling shaping passage 21 corresponding to the shaping flow passage of the molding mold 1. The cooling shaping channel 21 adopts the cooling mode of air exhaust to cool the hard composite fire-proof strip, and can prevent the surface of the hard composite fire-proof strip from chapping.
As shown in fig. 2, in the present embodiment, the heater 3 is fitted over the molding portion 14. The heater 3 keeps heating and heat preservation on the molding part 14, and ensures that the shell material and the core material are in a molten state or a semi-molten state which is easy to process.
Based on the manufacturing apparatus of the hard composite fire-retardant strip in the above embodiments, this embodiment provides two manufacturing methods of the hard composite fire-retardant strip.
Example 1
The shell material of this example is a hard gelatin, and the core material is expanded graphite. Preparing the hard rubber and the expanded graphite into a molten state, introducing the molten hard rubber and the expanded graphite into a feeding hole of a forming die 1, and heating and insulating the forming die 1; the hard glue is split through the split hard glue forming flow channel 111 of the splitting cone 141, and flows into the integral hard glue forming flow channel 111 at the rear end of the splitting cone 141 after being split, so that the split hard glue is closed into a whole. The core material molding runner 12 for injecting the core material is arranged in the material separating cone 141, so that the hard glue in the hard glue molding runner 111 envelops the core material and is extruded out to the sizing plate 143 together. The sizing plate 143 is provided with a sizing channel 1431 so that the hard glue and the core material are extruded and sized through the sizing channel 1431 and introduced into the sizing die 2. And (3) passing through a cooling and shaping channel 21 of the shaping die 2, exhausting air and slowly cooling until the hard composite fireproof strip is cooled and shaped, so as to obtain the hard composite fireproof strip.
Example 2
The shell material of this example is hard glue and soft glue, and the core material is expanded graphite. Preparing the hard glue, the soft glue and the expanded graphite into a molten state, introducing the molten hard glue, the soft glue and the expanded graphite into a feed inlet of a forming die 1, and heating and insulating the forming die 1; the hard glue is split through the split hard glue forming flow channel 111 of the splitting cone 141, and flows into the integral hard glue forming flow channel 111 at the rear end of the splitting cone 141 after being split, so that the split hard glue is closed into a whole. The core material molding runner 12 for injecting the core material is arranged in the material separating cone 141, so that the hard glue in the hard glue molding runner 111 envelops the core material and is extruded out to the sizing plate 143 together. The setting plate 143 is provided with a setting passage 1431 so that the hard glue and the core material are extruded and set through the setting passage 1431. Meanwhile, the soft glue is injected into the soft glue forming flow channel 112 on one side of the shaping channel 1431 and adheres to the surface of the hard glue, so that two soft glue strips are adhered to the surface of one side of the hard glue. And (3) introducing the hard composite fireproof strip with the soft adhesive tape into the cooling and shaping channel 21 of the shaping die 2, and performing air exhaust and slow cooling until the hard composite fireproof strip with the soft adhesive tape is cooled and shaped to obtain the hard composite fireproof strip with the soft adhesive tape.
The shape, number and position of the soft rubber strips are not limited in this embodiment, and in other embodiments, the shape, number and position of the soft rubber strips can be changed.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (13)
1. The utility model provides a manufacturing installation of compound fire prevention strip of stereoplasm, includes moulded die (1) and stock mould (2), stock mould (2) are connected its characterized in that with the discharge end of moulded die (1): the forming die is characterized in that a shell material forming flow channel (11) for introducing shell materials and a core material forming flow channel (12) for introducing core materials are arranged in the forming die (1), the shell material forming flow channel (11) surrounds the outer side of the core material forming flow channel (12), so that the core materials and the shell materials are continuously extruded from the discharge end of the forming die (1) together, and are introduced into the sizing die (2) for cooling and shaping.
2. The apparatus for manufacturing a rigid composite fire strip as defined in claim 1, wherein: the forming die (1) comprises a connecting seat (13) and a forming part (14), the forming part (14) comprises a distributing cone (141), a cone sleeve (142) and a shaping plate (143), the distributing cone (141) is sleeved in the connecting seat (13), the cone sleeve (142) is sleeved on the distributing cone (141) and tightly props the distributing cone (141), and the shaping plate (143) is fixedly arranged on the connecting seat (13) and tightly props the cone sleeve (142).
3. The apparatus for manufacturing a rigid composite fire strip as defined in claim 2, wherein: divide material awl (141) one end to be equipped with split type ebonite shaping runner (111), the other end encloses with taper sleeve (142) and synthesizes integral ebonite shaping runner (111), integral ebonite shaping runner (111) and split type ebonite shaping runner (111) intercommunication, be equipped with core material shaping runner (12) in the branch material awl (141).
4. The apparatus for manufacturing a rigid composite fire strip as defined in claim 3, wherein: the shaping plate (143) is provided with a shaping channel (1431) communicated with the discharge end of the material distributing cone (141).
5. The apparatus for manufacturing a rigid composite fire strip as defined in claim 4, wherein: a soft rubber molding flow channel (112) is arranged on one side of the shaping channel (1431), and the soft rubber molding flow channel (112) is communicated with the shaping channel (1431).
6. The apparatus for manufacturing a hard composite fire strip according to any one of claims 1 to 5, wherein: the shaping mold (2) is provided with a cooling shaping channel (21) corresponding to a molding flow channel of the molding mold (1).
7. The apparatus for manufacturing a rigid composite fire strip as defined in any one of claims 2 to 5, wherein: the forming part (14) is sleeved with a heater (3).
8. A method for manufacturing a hard composite fire strip based on the manufacturing apparatus of any one of claims 1 to 6, comprising the steps of:
s1: preparing materials, namely preparing a shell material and a core material into a molten state and connecting the shell material and the core material to a feeding hole of a forming die (1);
s2: extruding, namely injecting the shell material and the core material into the forming die (1) from a feeding hole on the forming die (1) respectively, so that the shell material is divided and surrounds the periphery of the core material, the shell material is gradually combined into a whole along with the propelling of the shell material and envelops the core material, and finally the shell material and the core material are extended out from a discharging hole together;
s3: and (5) shaping, namely introducing the product at the discharge port into a shaping mold (2) for cooling until shaping.
9. The method of manufacturing a rigid composite fire strip of claim 8, wherein: in step S2, the mold (1) is heated and held at a constant temperature.
10. The method of manufacturing a rigid composite fire strip of claim 8, wherein: in step S3, cooling is performed by a slow cooling method.
11. The method of manufacturing a rigid composite fire strip of claim 8, wherein: the shell material comprises hard gum and soft gum, and the core material is expanded graphite.
12. The utility model provides a compound fire prevention strip of stereoplasm which characterized in that: the fire-retardant strip is produced by the production apparatus according to any one of claims 1 to 7.
13. The utility model provides a compound fire prevention strip of stereoplasm which characterized in that: the fire-retardant strip is produced by the production method according to any one of claims 8 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936077.5A CN112092323A (en) | 2020-09-08 | 2020-09-08 | Hard composite fire-proof strip, manufacturing method and manufacturing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936077.5A CN112092323A (en) | 2020-09-08 | 2020-09-08 | Hard composite fire-proof strip, manufacturing method and manufacturing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112092323A true CN112092323A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010936077.5A Pending CN112092323A (en) | 2020-09-08 | 2020-09-08 | Hard composite fire-proof strip, manufacturing method and manufacturing device thereof |
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| CN (1) | CN112092323A (en) |
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| GB9608682D0 (en) * | 1995-06-02 | 1996-07-03 | Reddiplex Group Plc | Intumescent strip |
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| JP2014030938A (en) * | 2012-08-02 | 2014-02-20 | Toppan Printing Co Ltd | Multilayer extrusion molding apparatus |
| CN103753789A (en) * | 2014-01-23 | 2014-04-30 | 揭阳市广福电子实业有限公司 | Multi-layer co-extrusion production method and application thereof |
| CN104723531A (en) * | 2013-12-20 | 2015-06-24 | 杨俊奎 | Co-extrusion type sandwich extrusion mouth mold die |
| CN108274715A (en) * | 2017-01-05 | 2018-07-13 | 黄石市鸿达塑料模具有限责任公司 | Co-extrusion PE wood moulding molds are cooled down twice |
| CN109267916A (en) * | 2018-10-19 | 2019-01-25 | 佛山市南海崇泰防火材料有限公司 | A kind of integrated molding hard fireproof strip |
| CN208881141U (en) * | 2018-10-16 | 2019-05-21 | 深圳日高胶带新材料有限公司 | A kind of co-extrusion die head |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8706733D0 (en) * | 1987-03-20 | 1987-04-23 | Patterson K R | Tubular extrusions |
| GB2202484A (en) * | 1987-03-20 | 1988-09-28 | Keith Richard Patterson | Extruding sheaths around intumescent cores |
| GB2202484B (en) * | 1987-03-20 | 1990-08-15 | Keith Richard Patterson | Improvements relating to tubular extrusions |
| JPS6476622A (en) * | 1987-09-16 | 1989-03-22 | Hitachi Cable | Manufacture of cable |
| GB9608682D0 (en) * | 1995-06-02 | 1996-07-03 | Reddiplex Group Plc | Intumescent strip |
| AU6465396A (en) * | 1996-04-26 | 1997-11-19 | Reddiplex Group Plc | Intumescent strip |
| WO1997040971A1 (en) * | 1996-04-26 | 1997-11-06 | Reddiplex Group Plc | Intumescent strip |
| JP2014030938A (en) * | 2012-08-02 | 2014-02-20 | Toppan Printing Co Ltd | Multilayer extrusion molding apparatus |
| CN104723531A (en) * | 2013-12-20 | 2015-06-24 | 杨俊奎 | Co-extrusion type sandwich extrusion mouth mold die |
| CN103753789A (en) * | 2014-01-23 | 2014-04-30 | 揭阳市广福电子实业有限公司 | Multi-layer co-extrusion production method and application thereof |
| CN108274715A (en) * | 2017-01-05 | 2018-07-13 | 黄石市鸿达塑料模具有限责任公司 | Co-extrusion PE wood moulding molds are cooled down twice |
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Application publication date: 20201218 |
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| RJ01 | Rejection of invention patent application after publication |