CN113799355A - Extrusion forming equipment applied to PVC plastic pipe production - Google Patents
Extrusion forming equipment applied to PVC plastic pipe production Download PDFInfo
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- CN113799355A CN113799355A CN202111083834.XA CN202111083834A CN113799355A CN 113799355 A CN113799355 A CN 113799355A CN 202111083834 A CN202111083834 A CN 202111083834A CN 113799355 A CN113799355 A CN 113799355A
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- Prior art keywords
- side wall
- guide
- box
- frame
- extrusion
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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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/30—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to extrusion forming equipment applied to PVC plastic pipe production, and relates to the technical field of PVC plastic pipe production equipment; the right-angle mounting frame is arranged inside the extrusion raw material screening box; the screen frame is arranged on the upper side of the right-angle mounting frame; the two connecting seats are respectively and fixedly arranged on the left side of the bottom surface of the screen frame and the left side of the horizontal end of the right-angle mounting frame; the two racks are respectively arranged on the fixing plates on the front side and the rear side; the two electric push rods are respectively and fixedly connected with the racks on the front side and the rear side; the sealing plate is arranged on the opening end on the left side of the screening frame, and the lower side of the sealing plate is rotationally connected with the inner side wall of the screening frame through a resilience rotating shaft; the two guard plates are respectively and symmetrically fixedly arranged on the front side and the rear side of the sealing plate; the raw materials can sieve in advance before melting, and the granule screening with the undersize is discharged, adopts the large granule to melt, and then improves the transparency of the product of later stage output, improves the quality and the intensity of product.
Description
Technical Field
The invention relates to the technical field of PVC plastic pipe production equipment, in particular to extrusion forming equipment applied to PVC plastic pipe production.
Background
PVC is a yellowish semitransparent plastic particle, is commonly used for manufacturing common articles for daily use such as plates, pipes, soles, toys, doors and windows, and the like, is in a non-uniform small particle shape when being manufactured, has different sizes and shapes, is convenient to transport and carry, so that irregular PVC particles need to be extruded by extrusion forming equipment after being melted and become a long strip shape, and is more suitable for transportation and storage, because the PVC particles are not uniform in size, when being sent into the extrusion forming equipment for melting, because the melting temperature cannot be customized according to each different PVC particle, large particles can be well melted and well processed, and undersized particles can be carbonized due to small size and poorer heat resistance ratio, blacked parts are carbonized due to excessive heat before the large particles are melted, and are mixed into PVC molten liquid after carbonization, the transparency of the produced PVC product is poor, and the strength of the finished product is poor.
Disclosure of Invention
The invention aims to provide extrusion forming equipment which is simple in structure, reasonable in design and convenient to use and is applied to PVC plastic pipe production, raw materials can be sieved in advance before being melted, undersized particles are sieved and discharged, and large particles are adopted for melting, so that the transparency of a product produced in the later period is improved, and the quality and the strength of the product are improved.
In order to achieve the purpose, the invention adopts the technical scheme that: the device comprises a melting extrusion molding machine body, an extrusion raw material screening box, a feed hopper, a box door and a guide chute; an extrusion raw material screening box is arranged on one side of the melting extrusion forming machine body, a box door is rotatably arranged on the opening end of the left side wall of the extrusion raw material screening box through a rebound hinge, a guide chute is fixedly arranged on the left side wall of the extrusion raw material screening box on the lower side of the box door, and the other end of the guide chute is connected with a feed inlet of the melting extrusion forming machine body; a feed hopper is fixedly arranged on the top surface of the extrusion raw material screening box;
it also includes:
the right-angle mounting frame is arranged inside the extrusion raw material screening box;
the two guide wheels are respectively and rotatably arranged on the left side and the right side of the bottom surface of the horizontal end of the right-angle mounting frame through wheel seats;
the two support plates are arranged on the lower side of the right-angle mounting frame, and the front end and the rear end of each support plate are fixedly arranged on the front side wall and the rear side wall inside the extrusion raw material screening box respectively;
the guide rails are two and are respectively fixedly arranged on the upper side surface of the support plate, and the guide wheels are arranged on the guide rails in a rolling manner;
the screen frame is arranged on the upper side of the right-angle mounting frame, and the upper side and the left side of the screen frame are both in an open shape;
the two connecting seats are respectively and fixedly arranged on the left side of the bottom surface of the screen frame and the left side of the horizontal end of the right-angle mounting frame, the connecting seats on the upper side and the lower side are rotatably connected through a rotating shaft, and the connecting seats at the bottom of the screen frame are fixedly sleeved on the rotating shaft;
the two driving gears are fixedly sleeved on the rotating shaft ends at the front side and the rear side of the connecting seat respectively;
the two fixing plates are respectively fixedly arranged on the front side wall and the rear side wall of the right-angle mounting frame;
the two racks are respectively arranged on the fixing plates at the front side and the rear side, and the upper sides of the racks are meshed with the driving gears at the corresponding positions;
the two electric push rods are respectively and fixedly connected with the racks on the front side and the rear side, and the other end of each electric push rod is fixedly arranged on the top surface of the fixing plate through a mounting seat; the electric push rod is connected with an external power supply;
the sealing plate is arranged on the opening end on the left side of the screening frame, and the lower side of the sealing plate is rotatably connected with the inner side wall of the screening frame through a resilience rotating shaft;
the two guard plates are symmetrically and fixedly arranged on the front side and the rear side of the sealing plate respectively;
the spring telescopic rod is vertically and fixedly arranged on the left side wall of the sealing plate, and the left end of the spring telescopic rod is abutted against the inner side wall of the box door;
the driving motor is fixedly arranged on the front side wall of the extrusion raw material screening box through a motor base and is connected with an external power supply;
the guide rod is arranged in the extrusion raw material screening box on the right side of the right-angle mounting frame, the rear end of the guide rod is rotatably arranged on the rear side wall in the extrusion raw material screening box through a bearing, and the front end of the guide rod is fixedly connected with the output end of the driving motor after rotatably penetrating through the front side wall of the extrusion raw material screening box through the bearing;
the worm sleeve is movably sleeved on the guide rod, first guide strips are symmetrically and fixedly arranged on the inner side wall of the worm sleeve, and the worm sleeve is arranged inside a first guide groove formed in the guide rod in a sliding manner through the first guide strips;
the middle part of the worm wheel is rotatably arranged on the right side wall of the right-angle mounting frame through a rotating shaft and a bearing; the upper side of the worm wheel is meshed with the bottom of the worm sleeve;
one end of the first connecting rod is fixedly sleeved on the rotating shaft in the middle of the worm wheel, and the other end of the first connecting rod is rotatably connected with the second connecting rod through the rotating shaft and the bearing; the other end of the second connecting rod is connected with the fixed seat through a rotating shaft and a bearing; the fixing seat is fixedly connected with the front side wall inside the extrusion raw material screening box.
Preferably, a winch is fixedly arranged on the bottom surface of the guide chute, a pull ring is fixedly arranged on the left side wall of the extrusion raw material screening box, a steel wire rope is fixedly bound on the pull ring, and the lower end of the steel wire rope is wound and fixed on a reel of the winch after penetrating through the bottom surface of the guide chute; the winch is connected with an external power supply; the chamber door is fixed in the opening on extrusion raw materials screening case left side wall to the counterforce of the resilience hinge on the chamber door, and when needs were opened the chamber door, opened the hoist engine, hoist engine rolling wire rope fixed the inside at the baffle box with the chamber door, conveniently carried out the unloading.
Preferably, a second guide strip is fixedly arranged on the top surface of the fixing plate, and the rack is slidably arranged on the second guide strip through a second guide groove formed in the bottom surface of the rack; no. two gib blocks and No. two guide ways's cooperation setting is controlled the removal of rack and is carried on spacingly and direction.
Preferably, the end part of the spring telescopic rod is movably provided with a roller through a thrust ball bearing and a roller seat, and the outer side wall of the roller is abutted against the inner side wall of the box door; when the spring telescopic rod is abutted to the inner side wall of the box door, the friction coefficient between the spring telescopic rod and the inner side wall of the box door is reduced by the roller.
Preferably, a collecting box is movably inserted into the front side wall of the bottom of the extrusion raw material screening box, and a groove is formed in the front side wall of the collecting box; the collecting box is taken out by scratching the groove.
Preferably, the right side of the bottom surface of the screening frame is fixedly provided with an electromagnet, the right side of the upper side surface of the right-angle mounting frame is fixedly provided with an iron sheet, and the electromagnet and the iron sheet are movably attracted; the electromagnet is connected with an external power supply.
The working principle of the invention is as follows: the raw materials are conveyed into the box body through the feed hopper, at the moment, the screening frame is positioned on the lower side of the discharge end of the feed hopper, the raw materials fall into the screening frame, the box door and the sealing plate are in a closed state, the driving motor is turned on, the output end of the driving motor drives the guide rod to rotate, the guide rod drives the worm sleeve to rotate, the worm sleeve drives the worm gear to rotate, the worm gear rotates to drive the first connecting rod and the second connecting rod to rotate, the worm sleeve is further driven to reciprocate forwards and backwards on the guide rod, the right-angle mounting frame is further driven to reciprocate forwards and backwards on the guide rail through the guide wheel, the screen frame moves forwards and backwards, the small particles are screened into the box body by the screen frame, large particles are retained on the upper side of the screen frame, after screening is finished, the driving motor is stopped, the electric push rod is shortened, the rack drives the driving gear to rotate clockwise, and the screen frame is turned over, open the chamber door, the closing plate rotates under the effect of the pivot of kick-backing, opens the left open end of screen frame, carries out the unloading, and the inside that large granule raw materials entered into the melting extrusion molding machine body from the baffle box melts.
Compared with the prior art, the invention has the beneficial effects that:
1. the raw materials can be sieved in advance before being melted, undersized particles are sieved and discharged, and large particles are adopted for melting, so that the transparency of a product produced in the later period is improved, and the quality and the strength of the product are improved;
2. the driving motor, the guide rod, the worm sleeve and the worm wheel drive the right-angle mounting frame to move back and forth in a reciprocating manner, so that screening operation through the screening frame is facilitated;
3. drive gear, electric putter and gear drive screening frame and overturn, conveniently carry out the unloading.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 2.
FIG. 5 is a schematic view of the connection structure of the worm sleeve, the first guide groove, the worm wheel, the first connecting rod, the second connecting rod and the fixing seat of the present invention.
Fig. 6 is a schematic view showing a connection structure of a sealing plate and a protector plate according to the present invention.
Fig. 7 is a schematic view of the construction of the right angle mount of the present invention.
Fig. 8 is a schematic view of a connection structure of the rack bar, the second guide bar and the fixing plate of the present invention.
Description of reference numerals:
the device comprises a melting extrusion molding machine body 1, an extrusion raw material screening box 2, a feed hopper 3, a box door 4, a guide chute 5, a right-angle mounting frame 6, a guide wheel 7, a support plate 8, a guide rail 9, a screen frame 10, a connecting seat 11, a driving gear 12, a fixing plate 13, a rack 14, an electric push rod 15, a sealing plate 16, a guard plate 17, a spring telescopic rod 18, a driving motor 19, a guide rod 20, a worm sleeve 21, a first guide strip 22, a first guide groove 23, a worm gear 24, a first connecting rod 25, a second connecting rod 26, a fixing seat 27, a winch 28, a pull ring 29, a steel wire rope 30, a second guide strip 31, a second guide groove 32, a roller 33, a collecting box 34, a digging groove 35, an electromagnet 36 and an iron sheet 37.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 8, the technical solution adopted by the present embodiment is: the device comprises a melting extrusion molding machine body 1, an extrusion raw material screening box 2, a feed hopper 3, a box door 4 and a guide chute 5; an extrusion raw material screening box 2 is arranged on one side of a melting extrusion forming machine body 1, a box door 4 is rotatably arranged on an opening end of the left side wall of the extrusion raw material screening box 2 through a rebound hinge, the box door 4 is reset and fixed through the rebound hinge, a guide chute 5 is fixedly arranged on the left side wall of the extrusion raw material screening box 2 on the lower side of the box door 4 through a bolt, and the other end of the guide chute 5 is connected with a feed inlet of the melting extrusion forming machine body 1; a feed hopper 3 is fixedly arranged on the top surface of the extrusion raw material screening box 2 through bolts;
it also includes:
the right-angle mounting frame 6 is arranged inside the extrusion raw material screening box 2;
the number of the guide wheels 7 is two, and the guide wheels 7 are respectively and rotatably arranged on the left side and the right side of the bottom surface of the horizontal end of the right-angle mounting frame 6 through wheel seats;
two support plates 8 are arranged on the lower side of the right-angle mounting frame 6, and the front end and the rear end of each support plate 8 are fixedly welded on the front side wall and the rear side wall of the extrusion raw material screening box 2 respectively;
the number of the guide rails 9 is two, the guide rails 9 are respectively fixedly arranged on the upper side surface of the support plate 8 through bolts, and the guide wheels 7 are arranged on the guide rails 9 in a rolling manner;
the screen frame 10 is arranged on the upper side of the right-angle mounting frame 6, and the upper side and the left side of the screen frame 10 are both arranged in an open shape;
the two connecting seats 11 are fixedly welded on the left side of the bottom surface of the screen frame 10 and the left side of the horizontal end of the right-angle mounting frame 6 respectively, the connecting seats 11 on the upper side and the lower side are rotatably connected through a rotating shaft, and the connecting seats 11 at the bottom of the screen frame 10 are fixedly sleeved on the rotating shaft;
two driving gears 12 are arranged, and the driving gears 12 are respectively fixedly welded and sleeved on the rotating shaft ends at the front side and the rear side of the connecting seat 11;
two fixing plates 13 are arranged, and the two fixing plates 13 are respectively fixedly welded on the front side wall and the rear side wall of the right-angle mounting frame 6;
two racks 14, wherein the two racks 14 are respectively arranged on the fixing plates 13 at the front side and the rear side, and the upper sides of the racks 14 are meshed with the driving gears 12 at the corresponding positions;
two electric push rods 15, wherein the two electric push rods 15 are respectively and fixedly connected with the racks 14 on the front side and the rear side, and the other end of each electric push rod 15 is fixedly arranged on the top surface of the fixing plate 13 through a mounting seat and a bolt; the electric push rod 15 is connected with an external power supply;
the sealing plate 16 is arranged on the opening end on the left side of the screening frame, and the lower side of the sealing plate 16 is rotatably connected with the inner side wall of the screening frame through a resilience rotating shaft;
the number of the guard plates 17 is two, and the guard plates 17 are symmetrically and fixedly arranged on the front side and the rear side of the sealing plate 16 through bolts;
the spring telescopic rod 18 is vertically and fixedly arranged on the left side wall of the sealing plate 16 through a bolt, and the left end of the spring telescopic rod 18 is arranged in a manner of abutting against the inner side wall of the box door 4;
the driving motor 19 is fixedly arranged on the front side wall of the extrusion raw material screening box 2 through a motor base and a bolt, and the driving motor 19 is connected with an external power supply;
the guide rod 20 is arranged inside the extrusion raw material screening box 2 on the right side of the right-angle mounting frame 6, the rear end of the guide rod 20 is rotatably arranged on the rear side wall inside the extrusion raw material screening box 2 through a bearing, and the front end of the guide rod 20 is fixedly connected with the output end of the driving motor 19 after rotatably penetrating through the front side wall of the extrusion raw material screening box 2 through the bearing;
the worm sleeve 21 is movably sleeved on the guide rod 20, first guide strips 22 are symmetrically and integrally formed on the inner side wall of the worm sleeve 21, and the worm sleeve 21 is slidably arranged in a first guide groove 23 formed in the guide rod 20 through the first guide strips 22;
the middle part of the worm wheel 24 is rotatably arranged on the right side wall of the right-angle mounting frame 6 through a rotating shaft and a bearing; the upper side of the worm wheel 24 is meshed with the bottom of the worm sleeve 21, and the worm wheel 24 rotates synchronously with a rotating shaft in the middle of the worm wheel 24;
one end of the first connecting rod 25 is fixedly sleeved on a rotating shaft in the middle of the worm wheel 24 through a clamping pin, and the other end of the first connecting rod 25 is rotatably connected with a second connecting rod 26 through the rotating shaft and a bearing; the other end of the second connecting rod 26 is connected with a fixed seat 27 through a rotating shaft and a bearing; the fixing seat 27 is fixedly connected with the front side wall inside the extrusion raw material screening box 2.
Preferably, a winch 28 is fixedly arranged on the bottom surface of the material guide chute 5 through a bolt, a pull ring 29 is fixedly welded on the left side wall of the extrusion raw material screening box 2, a steel wire rope 30 is fixedly bound on the pull ring 29, and the lower end of the steel wire rope 30 passes through the bottom surface of the material guide chute 5 and then is wound and fixed on a reel of the winch 28; the winch 28 is connected with an external power supply; the door 4 is fixed in the opening on the left side wall of the extrusion raw material screening box 2 by the reverse force of the rebound hinge on the door 4, when the door 4 needs to be opened, the winch 28 is opened, the winch 28 winds the steel wire rope 30, the door 4 is fixed in the guide chute 5, and discharging is conveniently carried out.
Preferably, a second guide bar 31 is fixedly arranged on the top surface of the fixing plate 13 through bolts, and the rack 14 is slidably arranged on the second guide bar 31 through a second guide groove 32 formed on the bottom surface of the rack; the second guide strip 31 and the second guide groove 32 are matched to limit and guide the left and right movement of the rack 14.
Preferably, the end of the telescopic spring rod 18 is movably provided with a roller 33 through a thrust ball bearing and a roller seat, and the outer side wall of the roller 33 is arranged to be in contact with the inner side wall of the box door 4; when the telescopic spring rod 18 abuts against the inner side wall of the door 4, the roller 33 reduces the friction coefficient between the telescopic spring rod 18 and the inner side wall of the door 4.
As a preferable scheme, furthermore, a collecting box 34 is movably inserted on the front side wall of the bottom of the extrusion raw material screening box 2, and a digging groove 35 is formed on the front side wall of the collecting box 34; the collection box 34 is removed through the cutout 35.
Preferably, the right side of the bottom surface of the screening frame is fixedly provided with an electromagnet 36 through a bolt, the right side of the upper side surface of the right-angle mounting frame 6 is fixedly provided with an iron sheet 37 through a bolt, and the electromagnet 36 and the iron sheet 37 are movably attracted; the electromagnet 36 is connected with an external power supply.
The specific use models of the driving motor 19, the electromagnet 36 and the electric push rod 15 are directly purchased from the market and installed and used according to the use requirements.
The working principle of the specific embodiment is as follows: raw materials are conveyed into the box body through the feed hopper 3, at the moment, the screening frame is positioned on the lower side of the discharge end of the feed hopper 3, the raw materials fall into the screening frame, at the moment, the box door 4 and the sealing plate 16 are in a closed state, the driving motor 19 is turned on, the output end of the driving motor 19 drives the guide rod 20 to rotate, the guide rod 20 drives the worm sleeve 21 to rotate, the worm sleeve 21 drives the worm wheel 24 to rotate, the worm wheel 24 rotates to drive the first connecting rod 25 and the second connecting rod 26 to rotate, the worm sleeve 21 is further driven to reciprocate forwards and backwards on the guide rod 20, the right-angle mounting frame 6 is further driven to reciprocate forwards and backwards on the guide rail 9 through the guide wheel 7, the screen frame 10 moves forwards and backwards, the screen frame 10 screens small particles into the box body, large particles are retained on the upper side of the screen frame 10, and after the screening is completed, the driving motor 19 is stopped, electric putter 15 shortens, and rack 14 drives drive gear 12 clockwise rotation, and screen frame 10 upset opens chamber door 4, and closing plate 16 rotates under the effect of the pivot of kick-backing, opens the left open end of screen frame 10, carries out the unloading, and large granule raw materials enter into the inside of melting extrusion molding machine body 1 from baffle box 5 and melt.
After adopting above-mentioned structure, this embodiment beneficial effect does:
1. the raw materials can be sieved in advance before being melted, undersized particles are sieved and discharged, and large particles are adopted for melting, so that the transparency of a product produced in the later period is improved, and the quality and the strength of the product are improved;
2. the driving motor 19, the guide rod 20, the worm sleeve 21 and the worm wheel 24 drive the right-angle mounting frame 6 to move back and forth in a reciprocating manner, so that the screening operation through the screening frame is facilitated;
3. the driving gear 12, the electric push rod 15 and the gear drive the screening frame to turn over, so that blanking is convenient;
4. the winch 28 is opened, the winch 28 winds the steel wire rope 30, and the box door 4 is fixed inside the material guide groove 5, so that discharging is convenient.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. An extrusion forming device applied to PVC plastic pipe production comprises a melting extrusion forming machine body (1), an extrusion raw material screening box (2), a feed hopper (3), a box door (4) and a guide chute (5); an extrusion raw material screening box (2) is arranged on one side of a melting extrusion forming machine body (1), a box door (4) is rotatably arranged on an opening end of the left side wall of the extrusion raw material screening box (2) through a rebound hinge, a guide chute (5) is fixedly arranged on the left side wall of the extrusion raw material screening box (2) on the lower side of the box door (4), and the other end of the guide chute (5) is connected with a feed inlet of the melting extrusion forming machine body (1); a feed hopper (3) is fixedly arranged on the top surface of the extrusion raw material screening box (2);
it is characterized in that it also comprises:
the right-angle mounting frame (6), the right-angle mounting frame (6) is arranged inside the extrusion raw material screening box (2);
the number of the guide wheels (7) is two, and the guide wheels (7) are respectively and rotatably arranged on the left side and the right side of the bottom surface of the horizontal end of the right-angle mounting frame (6) through wheel seats;
the two support plates (8) are arranged on the lower side of the right-angle mounting frame (6), and the front end and the rear end of each support plate (8) are respectively fixedly arranged on the front side wall and the rear side wall of the interior of the extrusion raw material screening box (2);
the number of the guide rails (9) is two, the guide rails (9) are respectively and fixedly arranged on the upper side surface of the supporting plate (8), and the guide wheels (7) are arranged on the guide rails (9) in a rolling manner;
the screen frame (10) is arranged on the upper side of the right-angle mounting frame (6), and the upper side and the left side of the screen frame (10) are both in an open shape;
the two connecting seats (11) are respectively fixedly arranged on the left side of the bottom surface of the screen frame (10) and the left side of the horizontal end of the right-angle mounting frame (6), the connecting seats (11) on the upper side and the lower side are rotatably connected through a rotating shaft, and the connecting seats (11) at the bottom of the screen frame (10) are fixedly sleeved on the rotating shaft;
two driving gears (12), wherein the two driving gears (12) are fixedly sleeved on the rotating shaft ends at the front side and the rear side of the connecting seat (11) respectively;
the two fixing plates (13) are respectively fixedly arranged on the front side wall and the rear side wall of the right-angle mounting frame (6);
two racks (14), wherein the racks (14) are respectively arranged on the fixing plates (13) at the front side and the rear side, and the upper sides of the racks (14) are meshed with the driving gears (12) at the corresponding positions;
the two electric push rods (15) are respectively fixedly connected with the racks (14) on the front side and the rear side, and the other end of each electric push rod (15) is fixedly arranged on the top surface of the fixing plate (13) through a mounting seat; the electric push rod (15) is connected with an external power supply;
the sealing plate (16) is arranged on the opening end on the left side of the screening frame, and the lower side of the sealing plate (16) is rotatably connected with the inner side wall of the screening frame through a rebounding rotating shaft;
the two guard plates (17) are symmetrically and fixedly arranged on the front side and the rear side of the sealing plate (16) respectively;
the spring telescopic rod (18) is vertically and fixedly arranged on the left side wall of the sealing plate (16), and the left end of the spring telescopic rod (18) is arranged in a manner of abutting against the inner side wall of the box door (4);
the driving motor (19) is fixedly arranged on the front side wall of the extrusion raw material screening box (2) through a motor base, and the driving motor (19) is connected with an external power supply;
the guide rod (20) is arranged inside the extrusion raw material screening box (2) on the right side of the right-angle mounting frame (6), the rear end of the guide rod (20) is rotatably arranged on the rear side wall inside the extrusion raw material screening box (2) through a bearing, and the front end of the guide rod (20) is fixedly connected with the output end of the driving motor (19) after rotatably penetrating through the front side wall of the extrusion raw material screening box (2) through the bearing;
the worm sleeve (21) is movably sleeved on the guide rod (20), first guide strips (22) are symmetrically and fixedly arranged on the inner side wall of the worm sleeve (21), and the worm sleeve (21) is slidably arranged in a first guide groove (23) formed in the guide rod (20) through the first guide strips (22);
the middle part of the worm wheel (24) is rotatably arranged on the right side wall of the right-angle mounting frame (6) through a rotating shaft and a bearing; the upper side of the worm wheel (24) is meshed with the bottom of the worm sleeve (21);
one end of the first connecting rod (25) is fixedly sleeved on a rotating shaft in the middle of the worm wheel (24), and the other end of the first connecting rod (25) is rotatably connected with the second connecting rod (26) through the rotating shaft and a bearing; the other end of the second connecting rod (26) is connected with the fixed seat (27) through a rotating shaft and a bearing; the fixed seat (27) is fixedly connected with the front side wall inside the extrusion raw material screening box (2).
2. The extrusion forming equipment applied to PVC plastic pipe production according to claim 1, characterized in that: a winch (28) is fixedly arranged on the bottom surface of the guide chute (5), a pull ring (29) is fixedly arranged on the left side wall of the extrusion raw material screening box (2), a steel wire rope (30) is fixedly bound on the pull ring (29), and the lower end of the steel wire rope (30) is wound and fixed on a reel of the winch (28) after penetrating through the bottom surface of the guide chute (5); the winch (28) is connected with an external power supply; the door (4) is fixed in the opening on extrusion raw materials screening case (2) left side wall in the counterforce of the resilience hinge on door (4), and when needs are opened door (4), open hoist engine (28), and hoist engine (28) rolling wire rope (30) fixes door (4) in the inside of baffle box (5), conveniently carries out the unloading.
3. The extrusion forming equipment applied to PVC plastic pipe production according to claim 1, characterized in that: a second guide strip (31) is fixedly arranged on the top surface of the fixed plate (13), and the rack (14) is slidably arranged on the second guide strip (31) through a second guide groove (32) formed in the bottom surface of the rack; the second guide strip (31) and the second guide groove (32) are matched to limit and guide the left and right movement of the rack (14).
4. The extrusion forming equipment applied to PVC plastic pipe production according to claim 1, characterized in that: the end part of the spring telescopic rod (18) is movably provided with a roller (33) through a thrust ball bearing and a wheel seat, and the outer side wall of the roller (33) is arranged in a manner of being abutted against the inner side wall of the box door (4); when the spring telescopic rod (18) is abutted to the inner side wall of the box door (4), the roller (33) reduces the friction coefficient between the spring telescopic rod (18) and the inner side wall of the box door (4).
5. The extrusion forming equipment applied to PVC plastic pipe production according to claim 1, characterized in that: a collecting box (34) is movably inserted into the front side wall of the bottom of the extrusion raw material screening box (2), and a groove (35) is formed in the front side wall of the collecting box (34); the collecting box (34) is taken out through the digging groove (35).
6. The extrusion forming equipment applied to PVC plastic pipe production according to claim 1, characterized in that: an electromagnet (36) is fixedly arranged on the right side of the bottom surface of the screening frame, an iron sheet (37) is fixedly arranged on the right side of the upper side surface of the right-angle mounting frame (6), and the electromagnet (36) and the iron sheet (37) are movably attracted; the electromagnet (36) is connected with an external power supply.
7. The working principle of the extrusion forming equipment applied to the production of the PVC plastic pipes as claimed in claim 1 is characterized in that: raw materials are conveyed to the inside of the box body through the feed hopper (3), at the moment, the screening frame is positioned on the lower side of the discharge end of the feed hopper (3), the raw materials fall into the screening frame, at the moment, the box door (4) and the sealing plate (16) are both in a closed state, the driving motor (19) is turned on, the output end of the driving motor (19) drives the guide rod (20) to rotate, the guide rod (20) drives the worm sleeve (21) to rotate, the worm sleeve (21) drives the worm wheel (24) to rotate, the worm wheel (24) rotates to drive the first connecting rod (25) and the second connecting rod (26) to rotate, the worm sleeve (21) further moves forwards and backwards and forwards on the guide rod (20), the right-angle mounting frame (6) is further driven to move forwards and backwards on the guide rail (9) through the guide wheel (7), the screen frame (10) moves forwards and backwards, and the screen frame (10) screens small particles fall into the inside of the box body, the large granule is detained at the upside of screen cloth frame (10), after the screening is accomplished, stop driving motor (19), electric putter (15) shorten, rack (14) drive gear (12) clockwise rotation, screen cloth frame (10) upset, open chamber door (4), closing plate (16) rotate under the effect of resilience pivot, open the left open end of screen cloth frame (10), carry out the unloading, the inside that the large granule raw materials entered into melting extrusion molding machine body (1) from baffle box (5) melts.
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| CN202111083834.XA CN113799355B (en) | 2021-09-16 | 2021-09-16 | Extrusion molding equipment applied to PVC plastic pipe production |
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| CN202111083834.XA CN113799355B (en) | 2021-09-16 | 2021-09-16 | Extrusion molding equipment applied to PVC plastic pipe production |
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| CN113799355B (en) | 2023-08-01 |
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