CN108582729A - A kind of production method and its process units for PVC foam plate - Google Patents
A kind of production method and its process units for PVC foam plate Download PDFInfo
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- CN108582729A CN108582729A CN201810635788.1A CN201810635788A CN108582729A CN 108582729 A CN108582729 A CN 108582729A CN 201810635788 A CN201810635788 A CN 201810635788A CN 108582729 A CN108582729 A CN 108582729A
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- Prior art keywords
- group
- cooling
- shaping
- plate
- shaping platform
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- 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
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of production methods and its process units for PVC foam plate,The extruding machine being sequentially connected is arranged including straight line,Mold,Cool down shaping equipment,Dragger,Cutter,Cooling shaping equipment includes the first cooling pipe that connection die heater is equipped on the outside of first group of shaping platform,Second group of shaping platform,Third group shaping platform,The second cooling pipe of connection water cooling unit is equipped on the outside of 4th group of shaping platform,It is divided into two parts by the cooling shaping equipment that will be used in the production method of PVC foam plate,It achieves and cools down twice,The plank that high speed foams is set first to be transformed into small foaming,Decorative pattern that filling plate surface is formed and because enter cool down shaping equipment before temperature it is higher due to continue to foam and the surface irregularity that generates,It is cooled for the second time to molding again,Keep the plank produced more smooth than what is be directly once cooled and shaped,Than secondary sizing, low energy consumption,It is at low cost.
Description
Technical field
The present invention relates to PVC foam plate production technical fields, more particularly to are used for production method and the realization of PVC foam plate
The process units of the technique.
Background technology
Present PVC board cools down fixed thickness by total level Four shaping platform in process of production, basic once to complete to foam
Journey is cooled down using water cooling unit, although water cooling flow control temperature can be controlled by adjusting valve size, due to every group it is fixed
Type platform thickness requirement is different, little 5 DEG C of each group shaping platform temperature difference, and basic plate face, which contacts friction with shaping platform, difference gap
Different, the PVC foam plate surface produced is not smooth enough, of low quality.
A kind of production technology of the entitled secondary sizing of PVC foam core plate of Patent No. CN201410131321.5, patent and
The Chinese patent of process units is disclosed eliminates not smooth enough the problem of foaming plate surface using the method for secondary sizing, i.e., one
It is then cooling to realize secondary sizing again by heating after secondary molding, it reheats after the cooling period, energy consumption is big, and largely
Increase the process time.
As it can be seen that the prior art could be improved and improve.
Invention content
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of lifes for PVC foam plate
Production method and its process units, it is intended to solve in the prior art that PVC foam plate surface is not smooth enough, of low quality and energy consumption is big
Problem.
In order to achieve the above object, this invention takes following technical schemes：
A kind of production method for PVC foam plate, including the following steps that sequentially carry out： 1）Extrusion molding discharges：Addition is foamed
The PVC materials of agent squeeze out after being continuously sent into extruding machine foamable； 2）Enter mould into base：By the foaming PVC extruded stock of viscous state
It is continuous to be sent into the fixed thickness of mold setting, form continuous strip slab； 3）Cooling sizing：Exist to the strip slab slowly advanced
Cooling and shaping is carried out in shaping equipment； 4）Traction：By the slab after cooling and shaping, slowly traction is sent out from shaping equipment； 5）
It cuts：The slab that submitting is drawn from shaping equipment is cut into molding；
Step 3）Middle cooling sizing includes cooling and cooling for the second time for the first time, and the first time cools and the
Secondary cooling cooling is realized in same cooling shaping equipment.
In the production method for PVC foam plate, the board briquette when mould discharging is controlled at 140 DEG C
~160 DEG C；The temperature that the first time of slab cools is controlled at 40 DEG C~60 DEG C in cooling sizing；It cools for the second time
When temperature control at 20 DEG C~40 DEG C.
A kind of process units for PVC foam plate, including straight line arrange that the extruding machine being sequentially connected, mold, cooling are fixed
Type device, dragger, cutter, the cooling shaping equipment include first group of shaping platform, second group of shaping platform, the sizing of third group
Platform, the 4th group of shaping platform, wherein the first cooling pipe, the import of the first cooling pipe are equipped on the outside of first group of shaping platform
End is connected with die heater, and second group of shaping platform, third group shaping platform, the 4th group of shaping platform outside are equipped with the second cooling tube
Road, the second cooling pipe input end are connected with water cooling unit.
In the process units for PVC foam plate, first group of shaping platform, second group of shaping platform, third group
Shaping platform, the 4th group of shaping platform lower positioning plate be structure as a whole, first group of shaping platform, second group of shaping platform, third group
Shaping platform, the 4th group of shaping platform upper location-plate be independently arranged, and between lower positioning plate and upper location-plate be equipped with guiding mechanism
And elevating mechanism.
In the process units for PVC foam plate, the guiding mechanism includes the guiding being located in upper location-plate
Column and the guiding groove being socketed with guide post being located on lower positioning plate.
In the process units for PVC foam plate, the guide post is equipped with central through hole, central through hole difference
It is connected to the first cooling pipe, the second cooling pipe in upper location-plate, it is cold with first on lower positioning plate respectively to be oriented to groove
But pipeline, the connection of the second cooling pipe, and sealing ring is equipped on the outside of guide post.
In the process units for PVC foam plate, it is cold that the outlet end of first cooling pipe is connected with first
But liquid retracting device, the second cooling pipe outlet end are connected with the second coolant liquid retracting device.
In the process units for PVC foam plate, the elevating mechanism is pneumatic cylinder, and the pneumatic cylinder is embedded in
On lower positioning plate, and the upper end of piston rod is connect with upper location-plate.
Advantageous effect：
The present invention provides a kind of production methods and its process units for PVC foam plate, by that will be used for PVC foam plate
Cooling shaping equipment in production method is divided into two parts, and is separately connected the coolant liquid of two kinds of different temperatures, that is, passes through first
Connection die heater, second group of shaping platform, third group shaping platform, the 4th group of shaping platform of the first cooling pipe on the outside of group shaping platform
Second cooling pipe in outside is connected to same water cooling unit, and the coolant liquid in the coolant temperature and water cooling unit in die heater
Temperature is different, achieves and cools down twice, so that the plank that high speed foams is first passed through cooling for the first time and is transformed into small hair
Bubble, plate surface is formed when its having time being made automatically to be filled in the foaming of mold high temperature and high speed decorative pattern and to be transmitted to cooling fixed
The friction cut that is easy tod produce due to high temperature when type device or because enter cool down shaping equipment before temperature it is higher due to continue to foam
And the surface irregularity generated, then it is cooled for the second time to molding, keep the plank produced primary more cooling than directly
Molding more smooth, than secondary sizing, low energy consumption, at low cost；Wherein, cooling shaping equipment include be detachably connected it is upper
Positioning plate and lower positioning plate by the upper location-plate of replacement different height, can adapt to the demand of the plank of production different-thickness.
Description of the drawings
Fig. 1 is the production method flow chart provided by the present invention for PVC foam plate.
Fig. 2 is the process units structural schematic diagram of PVC foam plate provided by the invention.
Fig. 3 is the structural schematic diagram of cooling shaping equipment provided by the invention.
Specific implementation mode
The present invention provides a kind of production method and its process units for PVC foam plate, to make the purpose of the present invention, skill
Art scheme and effect are clearer, clear, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should manage
Solution, described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
It please refers to Fig.1, Fig. 2 and Fig. 3, the present invention is provided to the production method of PVC foam plate and its equipment.
Wherein, refering to fig. 1, a kind of production method for PVC foam plate, including the following steps that sequentially carry out： 1）It squeezes
Modeling discharging：It is squeezed out after the PVC materials for adding foaming agent are continuously sent into extruding machine foamable； 2）Enter mould into base：By viscosity flow
The foaming PVC extruded stock of state is continuously sent into the fixed thickness of mold setting, forms continuous strip slab； 3）Cooling sizing：To slow
The strip slab of traveling carries out cooling and shaping in shaping equipment； 4）Traction：By the slab after cooling and shaping from shaping equipment
Slow traction is sent out； 5）It cuts：The slab that submitting is drawn from shaping equipment is cut into molding；
In step 3）Middle cooling sizing includes cooling and cooling for the second time for the first time, the first time cool with
It cools and is realized in same cooling shaping equipment for the second time.
Among the above, the board briquette when mould discharging is controlled at 140 DEG C~160 DEG C；To slab in cooling sizing
The temperature that cools of first time control at 40 DEG C~60 DEG C；Temperature when cooling for the second time is controlled 20 DEG C~40
℃。
Specifically, for PVC foam plate production method pass through it is in extruding machine that the PVC materials for adding foaming agent is continuous
Feeding extruding machine foamable after squeeze out and inject in mold, and the fixed thickness of preliminary setting in a mold, and control mould
Have temperature in 140 DEG C~160 DEG C, preferably 150 DEG C, form it into continuous strip slab, is delivered to cooling sizing dress later
It sets, and first time cooling is carried out from first group of shaping platform is entered, the control of cooling for the first time is excellent in the range of 40 DEG C~60 DEG C
50 DEG C are selected as, time control is 0.5-1 minutes, makes the centre of plank can also continue to carry out small foaming, to be filled in mould
The decorative pattern and be transmitted to what the when of cooling down shaping equipment easy tod produce by high temperature that plate surface is formed when tool high temperature and high speed foaming
Friction cut or because enter cool down shaping equipment before temperature it is higher due to continue to foam and the surface irregularity that generates, and ensure first
The bulk temperature of the fixed thick slab of step setting is uniform, and is directly transmitted to second group of shaping platform, third from first group of shaping platform
Group shaping platform, the 4th group of shaping platform, and carry out second in second group of shaping platform, third group shaping platform, the 4th group of shaping platform
Secondary to cool, temperature control when cooling for the second time is at 20 DEG C~40 DEG C, and time control is 1-1.5 minutes, and plank is not
It foams again, that is, realizes the molding of plank, be no longer deformed, and under the action of transmitting device and dragger, make plate
Material is slowly moved at cutter, carries out the plank for being cut into certain specification, is convenient to carry and be checked.
Therefore, the plank of high speed foaming is first passed through cooling for the first time and is transformed into small foaming by this method, makes it
The decorative pattern and be transmitted to cooling shaping equipment that plate surface is formed when having time is automatically filled in the foaming of mold high temperature and high speed
When the friction cut that is easy tod produce due to high temperature or because enter cool down shaping equipment before temperature it is higher due to continue to foam and generate
Surface irregularity, then it is cooled for the second time to molding, keeps the plank produced smooth.
Refering to Fig. 2 and Fig. 3, a kind of process units for PVC foam plate, including straight line arrange the extruding machine being sequentially connected
1, mold 2, cooling shaping equipment 4, dragger 11, cutter 10, the cooling shaping equipment 4 include first group of shaping platform 5, the
8, the 4th groups of two groups of shaping platforms 7, third group shaping platform shaping platforms 9, first group of shaping platform, 5 outside are equipped with the first cooling pipe
16, the input end of the first cooling pipe 16 is connected with die heater 14, second group of shaping platform 7, third group shaping platform the 8, the 4th
9 outside of group shaping platform is equipped with the second cooling pipe 12, and 12 input end of the second cooling pipe is connected with water cooling unit 13.Wherein, institute
State first group of shaping platform, 5, second groups of shaping platforms 7, the lower positioning plate 21 of 8, the 4th groups of shaping platforms 9 of third group shaping platform is integrated knot
Structure, first group of shaping platform, 5, second groups of shaping platforms 7, the upper location-plate 15 of 8, the 4th groups of shaping platforms 9 of third group shaping platform are only
It erects and sets, and be equipped with guiding mechanism and elevating mechanism between lower positioning plate 21 and upper location-plate 15, specifically, the Guiding machine
Structure includes the guide post 17 being located in upper location-plate and the guiding groove 19 being socketed with guide post that is located on lower positioning plate, described
Guide post is equipped with central through hole, which is connected to the first cooling pipe, the second cooling pipe in upper location-plate respectively,
Groove is oriented to be connected to the first cooling pipe, the second cooling pipe on lower positioning plate respectively, and be equipped on the outside of guide post
Sealing ring 18.
Among the above, extruding machine 1, mold 2, dragger 11, cutter 10 are showing in the production method of PVC foam plate
Have equipment, cooling shaping equipment 4 include be arranged side by side first group of shaping platform, second group of shaping platform, third group shaping platform, the 4th group
Shaping platform, wherein first group of shaping platform, second group of shaping platform, third group shaping platform, the 4th group of shaping platform lower positioning plate be one
Body structure reduces the connection between lower positioning plate so that more smooth；First group of shaping platform, second group of shaping platform,
Three groups of shaping platforms, the 4th group of shaping platform upper location-plate be independently arranged, therefore, can be by replacing the first of different height respectively
The upper location-plate of group shaping platform, second group of shaping platform, third group shaping platform, the 4th group of shaping platform, realize adjust upper location-plate with
The distance of lower positioning plate realizes the demand of different-thickness plank, and by equipped with central through hole guide post and guiding groove
Connection realizes that upper location-plate is connected to the first cooling pipe of lower positioning plate, the second cooling pipe, and does not interfere with elevator
Lifting of the structure to upper location-plate, and be located on the outside of guide post and be equipped with sealing ring, it can make to keep between guide post and guiding groove
Sealing.
Wherein, the input end of the first cooling pipe on the outside of first group of shaping platform connects die heater, and the die heater is for protecting
Card for the first time cool down needed for temperature, realize plank first time cooling, second group of shaping platform, third group shaping platform, the 4th group
The second cooling pipe on the outside of shaping platform is commonly connected on same water cooling unit, and the outlet end of first cooling pipe is connected with
First coolant liquid retracting device, and the coolant liquid of the first coolant liquid retracting device returns to die heater, the second cooling after cooling
Pipe outlet is connected with the second coolant liquid retracting device, and the coolant liquid of the second coolant liquid retracting device returns to after cooling
On the water tank of water cooling unit, realizes recycling for coolant liquid, avoid energy waste.Wherein, die heater and water cooling unit are existing set
It is standby.Preferably, the inlet end and an outlet end of the first cooling pipe, that the inlet end and an outlet end of the second cooling pipe is each provided at is lower fixed
On the plate of position, facilitate the lifting and replacement of upper location-plate.
Preferably, which is water, naturally it is also possible to be replaced with cooling oil.
Preferably, the elevating mechanism is pneumatic cylinder 20, and the pneumatic cylinder 20 is embedded on lower positioning plate, and piston rod
Upper end connect with upper location-plate, by using pneumatic cylinder 20, realize the lifting of upper location-plate, it is convenient in cooling shaping equipment
The cleaning in portion, and the dismounting to upper location-plate.
In the present invention, two parts are divided by the cooling shaping equipment that will be used in the production method of PVC foam plate, and divide
Not Lian Jie two kinds of different temperatures coolant liquid, i.e., by the connection die heater of the first cooling pipe on the outside of first group of shaping platform,
Second group of shaping platform, third group shaping platform, the second cooling pipe on the outside of the 4th group of shaping platform are connected to same water cooling unit, and
Coolant temperature in die heater is different from the coolant temperature in water cooling unit, achieves and cools down twice, and high speed is made to foam
Plank first passes through cooling for the first time and is transformed into small foaming, its having time is made automatically to be filled in mold high temperature and high speed hair
Plate surface is formed when bubble decorative pattern and when being transmitted to cooling shaping equipment the friction cut that is easy tod produce by high temperature or
Because enter cool down shaping equipment before temperature it is higher due to continue to foam and the surface irregularity that generates, then it is cooled for the second time
To molding, keep the plank produced more smooth than what is be directly once cooled and shaped, low energy consumption than secondary sizing, cost
It is low；Wherein, cooling shaping equipment includes the upper location-plate being detachably connected and lower positioning plate, can pass through the upper of replacement different height
Positioning plate adapts to the demand of the plank of production different-thickness.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the scope of protection of the present invention.
Claims (8)
1. a kind of production method for PVC foam plate, including the following steps that sequentially carry out：
1）Extrusion molding discharges：It is squeezed out after the PVC materials for adding foaming agent are continuously sent into extruding machine foamable；
2）Enter mould into base：The foaming PVC extruded stock of viscous state is continuously sent into the fixed thickness of mold setting, forms continuous strip
Slab；
3）Cooling sizing：Cooling and shaping is carried out in shaping equipment to the strip slab slowly advanced；
4）Traction：By the slab after cooling and shaping, slowly traction is sent out from shaping equipment；
5）It cuts：The slab that submitting is drawn from shaping equipment is cut into molding；
It is characterized in that, step 3）Middle cooling sizing includes cooling and cooling for the second time for the first time；The first time
It cools and cools for the second time and realized in same cooling shaping equipment.
2. the production method according to claim 1 for PVC foam plate, which is characterized in that when the described mould discharging
Board briquette control at 140 DEG C~160 DEG C；Exist to the temperature control that the first time of slab cools in cooling shaping equipment
40 DEG C~60 DEG C；Temperature when cooling for the second time is controlled at 20 DEG C~40 DEG C.
3. a kind of being used for the process units described in claim 1 for PVC foam plate, including straight line arrangement is sequentially connected crowded
Molding machine, mold, cooling shaping equipment, dragger, cutter, which is characterized in that the cooling shaping equipment includes first group fixed
Type platform, second group of shaping platform, third group shaping platform, the 4th group of shaping platform, wherein first is equipped on the outside of first group of shaping platform
The input end of cooling pipe, the first cooling pipe is connected with die heater, second group of shaping platform, third group shaping platform, the 4th
It is equipped with the second cooling pipe on the outside of group shaping platform, the second cooling pipe input end is connected with water cooling unit.
4. the process units according to claim 3 for PVC foam plate, which is characterized in that first group of shaping platform,
Second group of shaping platform, third group shaping platform, the 4th group of shaping platform lower positioning plate be structure as a whole, first group of shaping platform,
Second group of shaping platform, third group shaping platform, the 4th group of shaping platform upper location-plate be independently arranged, and lower positioning plate and upper positioning
Guiding mechanism and elevating mechanism are equipped between plate.
5. the process units according to claim 4 for PVC foam plate, which is characterized in that the guiding mechanism includes
The guide post being located in upper location-plate and the guiding groove being socketed with guide post being located on lower positioning plate.
6. the process units according to claim 5 for PVC foam plate, which is characterized in that during the guide post is equipped with
Heart through-hole, the central through hole are connected to the first cooling pipe, the second cooling pipe in upper location-plate respectively, are oriented to groove difference
It is connected to the first cooling pipe, the second cooling pipe on lower positioning plate, and is equipped with sealing ring on the outside of guide post.
7. the process units according to claim 6 for PVC foam plate, which is characterized in that first cooling pipe
Outlet end be connected with the first coolant liquid retracting device, the second cooling pipe outlet end is connected with the second coolant liquid retracting device.
8. the process units according to claim 4 for PVC foam plate, which is characterized in that the elevating mechanism is gas
Cylinder pressure, the pneumatic cylinder are embedded on lower positioning plate, and the upper end of piston rod is connect with upper location-plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810635788.1A CN108582729A (en) | 2018-06-20 | 2018-06-20 | A kind of production method and its process units for PVC foam plate |
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| CN201810635788.1A CN108582729A (en) | 2018-06-20 | 2018-06-20 | A kind of production method and its process units for PVC foam plate |
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| CN109148049A (en) * | 2018-10-17 | 2019-01-04 | 上海科辰光电线缆设备有限公司 | A kind of photovoltaic cable making apparatus and application method |
| CN113442474A (en) * | 2021-06-30 | 2021-09-28 | 杭州凡泰塑业有限公司 | PVC board production system |
| CN114633413A (en) * | 2022-03-14 | 2022-06-17 | 南京赛旺科技发展有限公司 | Process method for producing EPC (electronic product code) floor |
| CN115837731A (en) * | 2022-10-31 | 2023-03-24 | 安徽飞科交通设备制造有限公司 | PVC board extrusion conveying system for rail transit train |
| CN116353031A (en) * | 2023-06-02 | 2023-06-30 | 河北韩杉新型装饰材料有限公司 | PVC floor forming device and forming process |
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| CN203783122U (en) * | 2013-10-12 | 2014-08-20 | 赵炳章 | Novel polyvinyl chloride wood-plastic skinning foaming building template production line |
| CN103895212A (en) * | 2014-04-02 | 2014-07-02 | 方庆华 | Production process and production equipment for secondary shaping of PVC (Polyvinyl Chloride) foaming core plate |
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