CN113276457B - PVC material manufacturing device and manufacturing method thereof - Google Patents
PVC material manufacturing device and manufacturing method thereof Download PDFInfo
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- CN113276457B CN113276457B CN202110527727.5A CN202110527727A CN113276457B CN 113276457 B CN113276457 B CN 113276457B CN 202110527727 A CN202110527727 A CN 202110527727A CN 113276457 B CN113276457 B CN 113276457B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/50—Removing moulded articles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a PVC material manufacturing device and a PVC material manufacturing method, which relate to the field of PVC material preparation and are prepared by injecting the following raw materials in parts by weight into a circulating single-time forming machine for circulating processing after mixing and hot melting: 51-63 parts of calcium powder, 38-46 parts of PVC raw materials, 6-10 parts of carbon black, 5-7 parts of mixed fatty acid epoxy methyl ester with carbon atoms, 3-6 parts of methoxymethyl ester, 1-3 parts of polyol ester with carbon atoms, 2-5 parts of resin, 2-8 parts of methyl ester and 16-21 parts of flame retardant; 56-64 kg of accelerator is additionally added into each ton of raw materials; the invention can obviously reduce the generation of leftover materials. Meanwhile, the pushing modules and the scraping modules are distributed on two sides of the calendaring module, so that operations of filling, calendaring and scraping molding can be sequentially completed when the materials pass through the molding through groove, continuous operation of multi-step multi-equipment is not needed, and the invention has high cycle operation efficiency and less equipment investment.
Description
Technical Field
The invention relates to the field of PVC material preparation, in particular to a PVC material manufacturing device and a PVC material manufacturing method.
Background
The existing PVC rubber production process comprises the steps of feeding, stirring, hot-melting extrusion, calendaring, traction cutting and the like, and the existing production process is to uniformly hot-melt calendaring and cool PVC raw materials to form a whole blank, and then cut the blank according to the specification to obtain batched PVC rubber materials with uniform specification.
The existing processing technology is divided into a plurality of independent steps for continuous production, independent processing equipment is needed for each step, the plurality of processing equipment form a production line for producing PVC rubber, the production efficiency is high, the production input cost and the energy consumption are high, and the efficiency and the cost cannot be considered.
Disclosure of Invention
The invention aims to solve the technical problems that: the production of leftover materials is greatly reduced in the continuous circulation production process of PVC materials, and the operations of filling, calendaring and scraping forming are continuously completed in a single circulation.
In order to solve the technical problems, the invention provides the following technical scheme:
the PVC material is prepared from the following materials in parts by weight: 51-63 parts of calcium powder, 38-46 parts of PVC raw materials, 6-10 parts of carbon black, 5-7 parts of mixed fatty acid epoxy methyl ester with carbon atoms, 3-6 parts of methoxymethyl ester, 1-3 parts of polyol ester with carbon atoms, 2-5 parts of resin, 2-8 parts of methyl ester and 16-21 parts of flame retardant; 56-64 kg of accelerator is additionally added into each ton of raw materials;
the square PVC rubber is prepared from the following raw materials:
(1) Weighing the raw materials according to a batching table, and then putting the raw materials into a feeding machine, wherein the feeding machine feeds various raw materials into a stirrer to mix the raw materials at a uniform speed until the raw materials are fully mixed;
(2) Heating the mixed raw materials to a melt state, injecting the melt state into a circulating single-time forming machine, continuously finishing filling, calendaring and scraping operations through the circulating single-time forming machine, and obtaining PVC rubber with rated specification;
(3) And taking down the prepared rubber, and circularly and repeatedly preparing a single PVC rubber after resetting.
Preferably, the circulating single forming machine comprises a frame, an annular material containing disc is arranged on the frame, a forming through groove is formed in the bottom of a groove of the annular material containing disc, a power module is arranged in the center of the annular material containing disc, a support component is arranged at the top of the power module, the support component is arranged above the annular material containing disc, a circulating forming module is arranged on the support component, the circulating forming module rotates around the power module in the groove of the annular material containing disc, the circulating forming module comprises a pushing module, a calendaring module and a scraping module which are distributed in a fan shape, the calendaring module is arranged between the pushing module and the scraping module, before the circulating forming module rotates above the forming through groove, the pushing module is lifted to be separated from the bottom of the annular material containing disc, the bottom of the scraping module is lowered to be attached to the bottom of the annular material containing disc, after the circulating forming module rotates above the forming through groove, the bottom of the pushing module is reset to be attached to the bottom of the annular material containing disc, and the bottom of the scraping module is reset to be separated from the bottom of the annular material containing disc continuously attached to the bottom of the annular material containing disc; the forming through groove is connected with a discharging disc in a sliding mode, an air cylinder is arranged below the discharging disc, and the air cylinder is arranged on the frame.
Preferably, a first track and a second track are sleeved on the outer edge of the annular material containing disc, an outer arc-shaped cushion block II is arranged on the first track, the outer arc-shaped cushion block II is arranged on the outer side of the forming through groove, an outer arc-shaped cushion block I is arranged on the second track, the outer arc-shaped cushion block I is arranged on the opposite side of the outer arc-shaped cushion block II, a third track and a fourth track are sleeved on the inner edge of the annular material containing disc, an inner arc-shaped cushion block I is arranged on the third track, the inner arc-shaped cushion block I is arranged on the inner side of the forming through groove, an inner arc-shaped cushion block II is arranged on the fourth track, and the inner arc-shaped cushion block II is arranged on the opposite side of the inner arc-shaped cushion block I; in the rotation process of the circulation forming module, the bottom of the pushing module is attached to the bottom of the annular material containing disc, the bottom of the pushing module is lifted upwards and separated from the bottom of the annular material containing disc only through the second outer arc-shaped cushion block and the second inner arc-shaped cushion block, and the bottom of the scraping module is attached to the bottom of the annular material containing disc, and the scraping module is lifted upwards and separated from the bottom of the annular material containing disc only through the first outer arc-shaped cushion block and the second inner arc-shaped cushion block.
Preferably, the power module comprises a main rotating shaft and a motor, the motor is arranged on the frame, the lower end of the main rotating shaft is connected with an output shaft of the motor, the upper end of the main rotating shaft penetrates out from the center of the annular containing disc, the support assembly comprises a rotating rod, an outer arc-shaped frame and an inner arc-shaped frame which are arranged above the annular containing disc, the rotating rod is radially arranged at the top of the main rotating shaft, the outer arc-shaped frame is arranged at the outer side of the rotating rod, the inner arc-shaped frame is arranged at the inner side of the rotating rod, a calendaring module is arranged below the rotating rod, two ends of the pushing module and the scraping module are respectively arranged at two sides of the outer arc-shaped frame and two ends of the inner arc-shaped frame, the two ends of the top of the pushing module are respectively connected with the outer arc-shaped frame and the inner arc-shaped frame in a longitudinal sliding mode, a top piece II is arranged between the top piece II and the outer arc-shaped frame, a reset spring II is also arranged between the top piece II and the inner arc-shaped frame, a top piece I is arranged between the top piece I and the reset spring II is also arranged between the top piece I and the outer arc-shaped frame.
Preferably, the pushing module comprises a second mounting sheet and a pushing sheet, wherein two ends of the top of the second mounting sheet are respectively connected with the outer arc-shaped frame and the inner arc-shaped frame in a longitudinal sliding mode, the second top sheet is arranged at the top end of a sliding part of the second mounting sheet, the pushing sheet is obliquely arranged below the second mounting sheet, supporting wheels are respectively arranged on the outer sides of two ends of the second mounting sheet, the two supporting wheels roll on a first track and a third track respectively, and the bottom of the pushing sheet is periodically attached to the bottom of the annular material containing disc along with the rolling of the supporting wheels.
Preferably, the scraping module comprises a first mounting sheet and a scraper, wherein two ends of the top of the first mounting sheet are respectively connected with the outer arc-shaped frame and the inner arc-shaped frame in a longitudinal sliding mode, the top of the first top sheet is arranged at the top end of the sliding part of the first mounting sheet, the scraper is obliquely arranged on the first mounting sheet, supporting wheels I are respectively arranged on the outer sides of two ends of the first mounting sheet, the two supporting wheels I roll on a second track and a fourth track respectively, and the bottom of the scraper is periodically attached to the bottom of the annular material containing disc along with the rolling of the supporting wheels I.
Preferably, the calendaring module comprises a press roller, wherein two ends of the press roller are hung below the rotating rod, and the press roller is arranged in a groove of the annular material containing disc and is attached to the bottom of the annular material containing disc.
Preferably, the outer edge of the annular material containing disc is also sleeved with a circular sliding groove, an arc-shaped sliding block is connected in a sliding manner in the circular sliding groove, a connecting rod is arranged on the arc-shaped sliding block, and the upper end of the connecting rod is arranged on the outer end of the rotating rod.
The beneficial effects obtained by the invention are as follows:
according to the invention, the pushing module pushes the PVC melt to continuously roll in the groove of the annular material containing disc, so that the PVC melt continuously completes the filling operation in the rolling process, and the redundant melt scraped by the previous scraping module can be continuously fused, thereby achieving the purpose of reducing the generation of leftover materials. Meanwhile, the pushing modules and the scraping modules are distributed on two sides of the calendaring module, so that operations of filling, calendaring and scraping molding can be sequentially completed when the materials pass through the molding through groove, continuous operation of multi-step multi-equipment is not needed, and the invention has high cycle operation efficiency and less equipment investment.
Drawings
FIGS. 1 and 2 are schematic views of the overall structure of the present invention from different angles of view;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
fig. 5 is a side view of the present invention.
Wherein. The device comprises a 1-frame, an 11-annular containing disc, a 12-discharging disc, a 14-cylinder, a 2-circular chute, a 3-outer arc cushion block I, a 4-outer arc cushion block II, a 5-inner arc cushion block I, a 51-inner arc cushion block II, a 6-main rotating shaft, a 61-motor, a 7-rotating rod, a 71-outer arc frame, a 72-inner arc frame, a 73-connecting rod, a 74-arc slide block, a 75-press roller, an 8-mounting sheet I, a 81-scraper, a 82-supporting wheel I, a 83-top sheet I, a 84-return spring I, a 9-mounting sheet II, a 91-pushing sheet, a 92-supporting wheel II, a 93-top sheet II, a 94-return spring II and a 10-molding through groove.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate a more complete, accurate and thorough understanding of the present invention's inventive concepts and technical solutions by those skilled in the art.
Example 1:
the circulating single forming machine comprises a frame 1, wherein an annular material containing disc 11 is arranged on the frame 1, a forming through groove 10 is formed in the bottom of a groove of the annular material containing disc 11, a power module is arranged in the center of the annular material containing disc 11, a support component is arranged at the top of the power module, the support component is arranged above the annular material containing disc 11, a circulating forming module is arranged on the support component and rotates around the power module in the groove of the annular material containing disc 11, the circulating forming module comprises a pushing module, a calendaring module and a scraping module which are distributed in a fan shape, the calendaring module is arranged between the pushing module and the scraping module, before the circulating forming module rotates above the forming through groove 10, the pushing module is lifted from the bottom of the annular material containing disc 11, the bottom of the scraping module is lowered and attached to the bottom of the annular material containing disc 11, after the circulating forming module rotates above the forming through groove 10, the bottom of the pushing module resets the bottom of the annular material containing disc 11, and the scraping module resets and is attached to the bottom of the annular material containing disc 11 continuously; the forming through groove 10 is connected with a discharging disc 12 in a sliding mode, an air cylinder 14 is arranged below the discharging disc 12, and the air cylinder 14 is arranged on the frame 1. The discharging disc 12 can be externally connected with a cooling device, so that rapid cooling and forming are facilitated. A heating device is arranged below the bottom of the annular material containing disc 11 and is used for keeping the constant temperature condition in the annular material containing disc 11 so as to keep the flowability of the PVC melt.
In this embodiment, a first track and a second track are sleeved on the outer edge of the annular material containing disc 11, an outer arc-shaped cushion block two 4 is arranged on the first track, the outer arc-shaped cushion block two 4 is arranged on the outer side of the forming through groove 10, an outer arc-shaped cushion block one 3 is arranged on the second track, the outer arc-shaped cushion block one 3 is arranged on the opposite side of the outer arc-shaped cushion block two 4, a third track and a fourth track are sleeved on the inner edge of the annular material containing disc 11, an inner arc-shaped cushion block one 5 is arranged on the third track, the inner arc-shaped cushion block one 5 is arranged on the inner side of the forming through groove 10, an inner arc-shaped cushion block two 51 is arranged on the fourth track, and the inner arc-shaped cushion block two 51 is arranged on the opposite side of the inner arc-shaped cushion block one 5; in the rotation process of the circulation forming module, the bottom of the pushing module is attached to the bottom of the annular material containing disc 11, the bottom of the pushing module is lifted upwards and separated from the bottom of the annular material containing disc 11 only when the second outer arc-shaped cushion block 4 and the first inner arc-shaped cushion block 5 are passed through, the bottom of the scraping module is attached to the bottom of the annular material containing disc 11, and the scraping module is lifted upwards and separated from the bottom of the annular material containing disc 11 only when the first outer arc-shaped cushion block 3 and the second inner arc-shaped cushion block 51 are passed through.
In this embodiment, the power module includes main pivot 6 and motor 61, motor 61 locates on frame 1, the output shaft of motor 61 is connected to main pivot 6 lower extreme, main pivot 6 upper end is worn out by the center of annular flourishing charging tray 11, the support subassembly is including locating bull stick 7, outer arc frame 71 and the interior arc frame 72 of the top of annular flourishing charging tray 11, bull stick 7 radially locates main pivot 6 top, the outside of bull stick 7 is located to outer arc frame 71, the inboard of bull stick 7 is located to interior arc frame 72, the rolling module has been equipped with below the bull stick 7, the both ends of pushing away material module and scraping module are located the both sides of outer arc frame 71 and interior arc frame 72 respectively, pushing away material module and scraping module top both ends and respectively with outer arc frame 71 and interior arc frame 72 longitudinal sliding connection, pushing away the sliding part top of material module all is equipped with top second 93, be equipped with reset spring second 94 between top 93 and the outer arc frame 71, be equipped with reset spring second 83 and first arc frame 83 between top 83 and the same arc frame 83.
In this embodiment, the pushing module includes a second mounting plate 9 and a pushing plate 91, two ends of the top of the second mounting plate 9 are respectively connected with the outer arc frame 71 and the inner arc frame 72 in a sliding manner, the second top plate 93 is disposed at the top end of the sliding portion of the second mounting plate 9, the pushing plate 91 is obliquely disposed below the second mounting plate 9, two supporting wheels two 92 are respectively disposed at the outer sides of two ends of the second mounting plate 9, the two supporting wheels two 92 roll on the first track and the third track, and the bottom of the pushing plate 91 is periodically attached to the bottom of the annular material containing disc 11 along with the rolling of the supporting wheels two 92.
In this embodiment, the scraping module includes a first mounting plate 8 and a scraper 81, two ends of the top of the first mounting plate 8 are respectively connected with the outer arc frame 71 and the inner arc frame 72 in a longitudinal sliding manner, a first top plate 83 is arranged at the top end of the sliding portion of the first mounting plate 8, the scraper 81 is obliquely arranged below the first mounting plate 8, supporting wheels 82 are respectively arranged at the outer sides of two ends of the first mounting plate 8, the two supporting wheels 82 roll on a second track and a fourth track respectively, and the bottom of the scraper 81 is periodically attached to the bottom of the annular material containing disc 11 along with the rolling of the supporting wheels 82.
In this embodiment, the calendaring module includes a pressing roller 75, two ends of the pressing roller 75 are hung below the rotating rod 7, and the pressing roller 75 is disposed in a groove of the annular material containing disc 11 and is attached to the bottom of the annular material containing disc 11.
In this embodiment, the outer edge of the annular tray 11 is further sleeved with a circular chute 2, an arc-shaped slide block 74 is slidably connected in the circular chute 2, a connecting rod 73 is arranged on the arc-shaped slide block 74, and the upper end of the connecting rod 73 is arranged on the outer end of the rotating rod 7.
The square PVC rubber is prepared according to the following method:
(1) Weighing the following raw materials in parts by weight: 51-63 parts of calcium powder, 38-46 parts of PVC raw materials, 6-10 parts of carbon black, 5-7 parts of mixed fatty acid epoxy methyl ester with carbon atoms, 3-6 parts of methoxymethyl ester, 1-3 parts of polyol ester with carbon atoms, 2-5 parts of resin, 2-8 parts of methyl ester and 16-21 parts of flame retardant; 56-64 kg of accelerator is additionally added into each ton of raw materials;
(2) Weighing the raw materials according to a batching table, and then putting the raw materials into a feeding machine, wherein the feeding machine feeds various raw materials into a stirrer to mix the raw materials at a uniform speed until the raw materials are fully mixed;
(3) Heating the mixed raw materials to a melt state, injecting the melt state into a circulating single-time forming machine, continuously finishing filling, calendaring and scraping operations through the circulating single-time forming machine, and obtaining PVC rubber with rated specification; the specific process is as follows:
(4) Firstly preheating an annular material containing disc 11 to 150-200 ℃, then adding PVC melt to the front of a material pushing plate 91, at the moment, attaching the bottom of the material pushing plate 91 to the bottom of a groove of the annular material containing disc 11, opening a motor 61, starting a main rotating shaft 6 to drive a rotating rod 7 to rotate, driving a first mounting plate 8 and a second mounting plate 9 to rotate by the rotating rod 7 through an outer arc-shaped frame 71 and an inner arc-shaped frame 72, simultaneously driving a pressing roller 75 to rotate, when the second mounting plate 9 and the material pushing plate 91 rotate to the front of a forming through groove 10, simultaneously rolling support wheels 92 at two ends of the second mounting plate 9 onto an outer arc-shaped cushion block 4 and an inner arc-shaped cushion block 5, integrally lifting the second mounting plate 9 and the material pushing plate 91 through the support wheels 92, enabling a gap with a certain height to be reserved between the bottom of the material pushing plate 91 and the bottom of the groove of the annular material containing disc 11, and continuing rotation of the rotating rod 7, the PVC melt is pushed into the forming through groove 10 for filling, a gap with a certain height is reserved between the bottom of the pushing sheet 91 and the bottom of the groove of the annular material containing disc 11, a certain surplus is generated in the filling process, the PVC melt is prevented from being unable to completely fill the volume of the forming through groove 10, the compression roller 75 is rolled along with the filling, so that the PVC melt completely fills the forming through groove 10, part of the PVC melt overflows the forming through groove 10 after the rolling because of excessive filling, the first return spring 84 enables the first supporting wheels 82 at the two ends of the first mounting sheet 8 to roll down from the first outer arc-shaped cushion block 3 and the second inner arc-shaped cushion block 51 simultaneously when the pushing sheet 91 is lifted, the first mounting sheet 8 and the scraper 81 are driven to integrally descend, at the moment, the bottom blade edge of the scraper 81 is attached to the bottom surface of the groove of the annular material containing disc 11, scraping operation is performed, the PVC melt overflowed from the forming through groove 10 after the scraping and the rolling, so that the PVC melt in the forming channel 10 is formed. Along with the rotation of the rotating rod 7, the mounting plate II 9 and the pushing plate 91 rotate out of the forming through groove 10, after filling is finished, the second supporting wheel 92 rolls down from the second outer arc-shaped cushion block 4 and the first inner arc-shaped cushion block 5 by the second restoring spring 94, the second supporting wheel 92 drives the mounting plate II 9 to move down, the pushing plate 91 is attached to the annular material containing disc 11 immediately, the PVC melt at the front part is pushed to move forward continuously, and the circulating rolling is used for refilling. After the scraper 81 rotates out of the forming through groove 10 area, the scraper 81 is required to be lifted up because the scraped surplus PVC melt remains between the scraper 81 and the press roller 75, the surplus PVC melt is kept at the position, the accumulation of the PVC melt between the scraper 81 and the press roller 75 after multiple forming is prevented, the continuous operation cannot be continued, the first supporting wheel 82 rolls on the first outer arc-shaped cushion block 3 and the second inner arc-shaped cushion block 51, the first mounting sheet 8 and the scraper 81 are lifted, the scraper 81 is separated from the bottom of the groove of the annular material containing disc 11, the PVC melt in front of the scraper 81 is stopped, and a small amount of the stopped PVC melt is collected into a large amount of circulating PVC melt when waiting for the pushing sheet 91 to pass through the position again, so that the aim of recycling is fulfilled. After one round of filling, calendaring and scraping operations, the air cylinder 14 drives the discharge tray 12 to move downwards, the formed PVC rubber is taken out, the air cylinder 14 moves upwards after the discharge tray 12 is cleaned, the discharge tray 12 moves upwards to the bottom of the forming channel, and a forming cavity is formed together with the forming through groove 10 for the next filling operation.
(5) The PVC melt can be continuously replenished in the cyclic molding process, so that the situation that the molding through groove 10 cannot be excessively filled in the filling process due to the fact that the quantity of the circulated PVC melt is too small is prevented. The take-off plate 12 may be cooled during the scraping operation so that the PVC melt in the mold cavity is partially solidified, preventing the PVC melt from being carried up by the scraper 81 during the scraping operation.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by the above embodiments, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (5)
1. The utility model provides a PVC material circulation single forming machine which is characterized in that, including frame (1), be equipped with annular flourishing tray (11) on frame (1), shaping logical groove (10) have been seted up to the recess bottom of annular flourishing tray (11), the central authorities of annular flourishing tray (11) are equipped with power module, power module's top is equipped with the support subassembly, support subassembly is located the top of annular flourishing tray (11), be equipped with the circulation shaping module on the support subassembly, the circulation shaping module rotates around power module in the recess of annular flourishing tray (11), the circulation shaping module is including being fan-shaped distributed pushing away material module, calendering module and scraping module, calendering module is located between pushing material module and the scraping module, before circulation shaping module rotates to shaping logical groove (10) top, the annular flourishing tray (11) bottom of scraping module bottom is lifted in the shaping and is broken away from, after circulation shaping module rotates out shaping logical groove (10), the annular flourishing tray (11) bottom is laminated with annular flourishing tray (11) bottom after the circulation shaping module rotates out shaping logical groove (11), the annular shaping module bottom is laminated with the annular flourishing tray (11) bottom is laminated; a discharge plate (12) is connected in the forming through groove (10) in a sliding way, an air cylinder (14) is arranged below the discharge plate (12), and the air cylinder (14) is arranged on the frame (1);
the outer edge of the annular material containing disc (11) is sleeved with a first track and a second track, the first track is provided with an outer arc-shaped cushion block II (4), the outer arc-shaped cushion block II (4) is arranged at the outer side of the forming through groove (10), the second track is provided with an outer arc-shaped cushion block I (3), the outer arc-shaped cushion block I (3) is arranged at the opposite side of the outer arc-shaped cushion block II (4), the inner edge of the annular material containing disc (11) is sleeved with a third track and a fourth track, the third track is provided with an inner arc-shaped cushion block I (5), the inner arc-shaped cushion block I (5) is arranged at the inner side of the forming through groove (10), and the fourth track is provided with an inner arc-shaped cushion block II (51), and the inner arc-shaped cushion block II (51) is arranged at the opposite side of the inner arc-shaped cushion block I (5); in the rotation process of the circulation forming module, the bottom of the pushing module is attached to the bottom of the annular material containing disc (11), the bottom of the pushing module is lifted upwards and separated from the bottom of the annular material containing disc (11) only when passing through the outer arc-shaped cushion block II (4) and the inner arc-shaped cushion block I (5), and the bottom of the scraping module is attached to the bottom of the annular material containing disc (11), and the scraping module is lifted upwards and separated from the bottom of the annular material containing disc (11) only when passing through the outer arc-shaped cushion block I (3) and the inner arc-shaped cushion block II (51);
the power module comprises a main rotating shaft (6) and a motor (61), the motor (61) is arranged on a frame (1), the lower end of the main rotating shaft (6) is connected with an output shaft of the motor (61), the upper end of the main rotating shaft (6) penetrates out from the center of an annular material containing disc (11), the bracket component comprises a rotating rod (7), an outer arc frame (71) and an inner arc frame (72) which are arranged above the annular material containing disc (11), the rotating rod (7) is radially arranged at the top of the main rotating shaft (6), the outer arc frame (71) is arranged at the outer side of the rotating rod (7), the inner arc frame (72) is arranged at the inner side of the rotating rod (7), a calendaring module is arranged below the rotating rod (7), two ends of the pushing module and the scraping module are respectively arranged at two sides of the outer arc frame (71) and the inner arc frame (72), two ends of the top of the pushing module are respectively connected with the outer arc frame (71) and the inner arc frame (72) in a longitudinal sliding mode, a sliding mode is arranged at the top of the pushing module, a sliding part (93) is arranged between the two top arc frames (93) and the two top arc frames (93) respectively, a sliding part (93) is arranged between the two top arc frames (93), a first return spring (84) is arranged between the first top sheet (83) and the outer arc-shaped frame (71), and a first return spring (84) is also arranged between the first top sheet (83) and the inner arc-shaped frame (72);
the pushing module comprises a second mounting plate (9) and a pushing plate (91), wherein two ends of the top of the second mounting plate (9) are respectively connected with the outer arc-shaped frame (71) and the inner arc-shaped frame (72) in a longitudinal sliding mode, the second top plate (93) is arranged at the top end of a sliding part of the second mounting plate (9), the pushing plate (91) is obliquely arranged below the second mounting plate (9), two supporting wheels (92) are respectively arranged at the outer sides of two ends of the second mounting plate (9), the two supporting wheels (92) roll on a first track and a third track respectively, and the bottom of the pushing plate (91) is periodically attached to the bottom of the annular material containing disc (11) along with the rolling of the second supporting wheels (92);
the scraping module comprises a first mounting plate (8) and a scraper (81), wherein two ends of the top of the first mounting plate (8) are respectively connected with the outer arc-shaped frame (71) and the inner arc-shaped frame (72) in a longitudinal sliding mode, the first top plate (83) is arranged at the top end of a sliding part of the first mounting plate (8), the scraper (81) is obliquely arranged below the first mounting plate (8), supporting wheels (82) are respectively arranged on the outer sides of two ends of the first mounting plate (8), the two supporting wheels (82) roll on a second track and a fourth track respectively, and the bottom of the scraper (81) is periodically attached to the bottom of the annular material containing disc (11) along with the rolling of the first supporting wheels (82).
2. A circulating single-shot forming machine for PVC material according to claim 1, wherein: the calendaring module comprises a pressing roller (75), wherein two ends of the pressing roller (75) are hung below the rotating rod (7), and the pressing roller (75) is arranged in a groove of the annular material containing disc (11) and is attached to the bottom of the annular material containing disc (11).
3. A circulating single-shot forming machine for PVC material according to claim 1, wherein: the circular material containing disc is characterized in that a circular chute (2) is further sleeved on the outer edge of the circular material containing disc (11), an arc-shaped sliding block (74) is connected in a sliding mode in the circular chute (2), a connecting rod (73) is arranged on the arc-shaped sliding block (74), and the upper end of the connecting rod (73) is arranged at the outer end of the rotating rod (7).
4. The preparation method of the PVC material is characterized by adopting the circulating single-time forming machine as claimed in claim 1 to prepare PVC rubber, and comprises the following specific steps:
(1) Weighing PVC raw materials according to a batching table, then putting the PVC raw materials into a feeding machine, feeding various raw materials into a stirrer by the feeding machine, and uniformly stirring until the materials are fully mixed;
(2) Heating the mixed raw materials to a melt state, injecting the melt state into a circulating single-time forming machine, continuously finishing filling, calendaring and scraping operations through the circulating single-time forming machine, and obtaining PVC rubber with rated specification;
(3) And taking down the prepared rubber, and circularly and repeatedly preparing a single PVC rubber after resetting.
5. The method for preparing the PVC material according to claim 4, wherein the PVC raw material is prepared from the following materials in parts by weight: 51-63 parts of calcium powder, 38-46 parts of PVC raw materials, 6-10 parts of carbon black, 5-7 parts of mixed fatty acid epoxy methyl ester with carbon atoms, 3-6 parts of methoxymethyl ester, 1-3 parts of polyol ester with carbon atoms, 2-5 parts of resin, 2-8 parts of methyl ester and 16-21 parts of flame retardant; 56-64 kg of accelerator is additionally added into each ton of raw materials.
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