CN114030159A - Screw rod composite structure of screw extruder - Google Patents
Screw rod composite structure of screw extruder Download PDFInfo
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- CN114030159A CN114030159A CN202111318874.8A CN202111318874A CN114030159A CN 114030159 A CN114030159 A CN 114030159A CN 202111318874 A CN202111318874 A CN 202111318874A CN 114030159 A CN114030159 A CN 114030159A
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- 239000002131 composite material Substances 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000033001 locomotion Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C48/27—Cleaning; Purging; Avoiding contamination
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- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a screw rod combination structure of a screw rod extruder, which comprises a base, a through pipe arranged on the base through a screw, two feed inlets arranged on the through pipe, a door opening and closing device arranged on the inner wall of the through pipe and positioned right above the feed inlets, and a moving device arranged on the base through a screw, wherein the moving device is arranged on one side of a channel through a screw; the feeding pipe is arranged on one side of the channel through a screw and is positioned right above the feeding hole; the screw rod mechanism is arranged on the moving device through screws, and the material passing pipe is arranged on the other side of the channel through screws and is positioned right below the feeding hole; thereby mobile device can drive screw mechanism and change between two feed inlets. The moving device designed by the invention is matched with the screw mechanism, so that the continuous operation of the device can be ensured and the operation efficiency can be improved when the feeding pipe or the feeding device at one end is cleaned.
Description
Technical Field
The invention belongs to the field of extruder equipment, and particularly relates to a screw rod combined structure of a screw rod extruder.
Background
Chinese patent publication No. CN203046213U discloses a double screw extruder of novel structure, including the double screw extruder body, the double screw extruder body is provided with main feed system, the double screw extruder body is equipped with the feed motor that is used for providing power for main feed system, the double screw extruder body is provided with extrusion system, the double screw extruder body is provided with the brace aircraft nose, the double screw extruder body is equipped with the reducing gear box system, the reducing gear box system includes gear reduction box and distributor box. The double-screw extruder with the novel structure has the advantages of high production speed, high production efficiency and high quality of produced products.
In the prior art, the problems that the operation of a machine needs to be suspended because a feeding pipe or a feeding device needs to be cleaned, the operation can be continued only after the feeding pipe or the feeding device is cleaned, and the operation efficiency is low frequently occur.
Disclosure of Invention
In view of the above problems in the prior art, the present invention aims to provide a screw combination structure of a screw extruder.
The invention provides the following technical scheme:
a screw combination structure of a screw extruder comprises a base, a through pipe arranged on the base, a feeding pipe arranged on one side of a channel, and a material passing pipe arranged on the other side of the channel; the through pipe is provided with two feed inlets, the feed pipe is positioned right above the feed inlets, and the feed passing pipe is positioned right below the feed inlets; a door opening and closing device is arranged on the inner wall of the through pipe and is positioned right above the feed inlet; a moving device mounted on the base, and the moving device is mounted on one side of the channel; the screw rod mechanism is installed on the moving device through screws, a feeding port is formed in the screw rod mechanism and located under a material passing pipe close to one end of the base, and therefore the moving device can drive the screw rod mechanism to switch between the two feeding ports.
Specifically, the moving device comprises a fixed seat arranged on the base, and the fixed seat is made of aluminum profiles; the air cylinders are arranged at two ends of the fixed seat through air cylinder fixed seats, and the air cylinder fixed seats are fixed through screws; magnetic switches are arranged at two ends of the cylinder; the mounting seat is mounted at the piston end of the cylinder; the mounting seat is provided with a screw mechanism.
Specifically, the distance between the two feed ports is equal to the stroke distance of the cylinder.
Specifically, the screw mechanism comprises a first motor arranged on a mounting seat at one end of the fixed seat; a transmission shaft is arranged on the first motor in a threaded manner; one end of the screw is connected with the transmission shaft through a coupler; the shell is arranged on the mounting seat at the other end, a cavity is arranged in the shell, and the other end of the screw rod is arranged in the cavity; a feeding port is arranged on the shell and is positioned right below the material passing pipe close to one end of the base; and a discharge hole is formed in one end, far away from the motor I, of the shell.
Specifically, the screw mechanism is a double-screw mechanism.
Specifically, the door opening and closing device comprises a screw rod, two ends of which are arranged on the inner wall of the through pipe through a bearing seat; one end of the screw rod is installed in the second motor in a threaded manner; a movable seat is arranged on the screw rod in a threaded manner; the movable seat is provided with a lock door; the slide rail seat is arranged on the bearing seat; the slide rail seat is internally provided with a slide way, and the movable seat is arranged in the slide way.
Specifically, the door opening and closing device comprises two lock doors which are symmetrically arranged along two feed inlets respectively, the feed inlets are closed by driving the lock doors to move oppositely through the rotation of a motor control lead screw, and the feed inlets are opened by moving backwards.
Specifically, the screw rod integrated configuration is still including installing the fan on the base, just the fan is located the one end of siphunculus, the siphunculus both ends are the through-hole.
Specifically, the motor II, the motor I, the cylinder and the magnetic switch are all externally connected with a PLC controller in a communication coupling connection mode.
Based on the device, the invention also provides a control method of the screw combination structure of the screw extruder, which comprises the following steps
S1, controlling the PLC to open a motor II and a motor I corresponding to the feeding port at one end, and controlling the screw rod to rotate by the motor II, so that the lock door is driven to move along the length direction of the screw rod, and the feeding port is opened; meanwhile, materials are manually fed into the feed port, enter the screw mechanism through the feed pipe, the material passing pipe and the material inlet, the first motor drives the screw to rotate, the screw drives the materials to move forwards, the materials gradually change into linear motion along with the rotation motion of the screw, and the linear motion is pushed towards the head of the screw to compress, generate heat, soften and stir the materials and mix the materials;
s2, when the device works to the feeding pipe at one end or the feeding device needs to be cleaned, the manual control program transfers the position of the feeding port, the PLC is controlled to open the air cylinders at the two ends, the motor II at one end is reversely rotated, the motor II at the other end is normally rotated, namely, the feeding port at one end is closed, the feeding port at the other end is opened, and the initial position of the air cylinder is a zero stroke position;
s3, when the cylinder moves to the full stroke position, the feeding port moves to the position below the material passing pipe at the other end, the magnetic switch detects the position of the piston and transmits a signal to the PLC, and the PLC controls the cylinder to be closed; meanwhile, the second motor drives the feeding opening at the other end to be opened;
s4, when a feeding pipe or a feeding device at the other end of the device needs to be cleaned, controlling a PLC to start cylinders at two ends, reversely rotating a motor II at the other end, positively rotating the motor II at one end, namely closing a feeding port at the other end, starting the feeding port at one end, retracting the cylinders to a zero stroke position, detecting the position of a piston by a magnetic switch, transmitting a signal to the PLC, controlling the PLC to close the cylinders, and moving the feeding ports to an initial position;
s5, when the feeding pipe or the feeding device which operates to one end again needs to be cleaned, the following two control methods are adopted:
d1, when the device is operated to a feeding pipe at one end or the feeding device needs to be cleaned, repeating the operation;
d2, when the device is operated to a feeding pipe at one end or the feeding device needs to be cleaned, repeating the operation; and after the operation is finished, in order to facilitate cleaning of the residual materials in the through pipe, the fan is started, and the residual materials in the through pipe are blown to the through hole at the other end of the through pipe by the fan at one end of the through pipe.
The invention has the beneficial effects that:
1. the moving device designed by the invention is matched with the screw mechanism, and when the feeding pipe or the feeding device at one end is cleaned, the moving device is controlled to move, and the feeding opening is moved into the feeding pipe or the feeding device at the other end, so that the continuous operation of the device is ensured, and the operation efficiency is improved;
2. the invention is provided with the fan, the fan at one end of the through pipe blows the residual materials in the through pipe to the through hole at the other end of the through pipe, and the residual materials in the through pipe are convenient to clean.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view showing the internal structure of the pipe of the present invention;
FIG. 4 is an isometric view of the anchor block of the present invention;
FIG. 5 is a schematic view of the internal structure of the slide rail seat of the present invention;
fig. 6 is a side view of embodiment 2 of the present invention.
Labeled as: 1. a base; 2. a mobile device; 3. a channel; 4. a feed pipe; 5. a screw mechanism; 6. a material passing pipe; 7. a fan; 8. a door opening and closing device; 9. a feed inlet;
201. a cylinder fixing seat; 202. a cylinder; 203. a mounting seat; 204. a fixed seat;
501. a first motor; 502. a coupling; 503. a screw; 504. a housing; 505. a feeding port; 506. a drive shaft; 507. a cavity; 508. a discharge port;
801. a second motor; 802. a bearing seat; 803. a lead screw; 804. a movable seat; 805. locking the door; 806. a slide rail seat; 807. a slideway.
Detailed Description
Example 1
As shown in fig. 1 to 4, the present invention provides a screw combination structure of a screw extruder, which comprises a base 1, a through pipe 3 mounted on the base 1 through screws, two feed inlets 9 arranged on the through pipe 3, a door opening and closing device 8 arranged on the inner wall of the through pipe 3 and located right above the feed inlets 9, a moving device 2 mounted on the base 1 through screws, and the moving device 2 mounted on one side of the channel 3 through screws; the feeding pipe 4 is installed on one side of the channel 3 through a screw, and the feeding pipe 4 is positioned right above the feeding hole 9; the screw rod mechanism 5 is installed on the moving device 2 through screws, the material passing pipe 6 is installed on the other side of the channel 3 through screws, and the material passing pipe 6 is located right below the feeding hole 9; so that the moving device 2 can bring the screw mechanism 5 to switch between the two feed openings 9.
The mobile device 2 includes a fixing base 204 mounted on the base 1 by screws, please refer to fig. 4, wherein the fixing base 204 is made of aluminum profile; the air cylinder 202 is installed at two ends of the fixing seat 204 through an air cylinder fixing seat 201, the air cylinder fixing seat 201 is fixed through screws, magnetic switches are installed at two ends of the air cylinder 202, and the magnetic switches control a circuit switch of the air cylinder 202 through a magnetic field signal; the mounting seat 203 is mounted at the piston end of the cylinder 201 through screws, the screw rod mechanism 5 is mounted on the mounting seat 203, and the distance between the two feed ports 9 is equal to the stroke distance of the cylinder 202.
The screw rod mechanism 5 comprises a first motor 501 which is arranged on the mounting seat 203 at one end of the fixing seat 204 through a screw, a transmission shaft 506 is arranged on the first motor 501 in a threaded manner, one end of a screw rod 503 is connected with the transmission shaft 506 through a coupler 502, the shell 504 is arranged on the mounting seat 203 at the other end through a screw, and a cavity 507 is formed in the shell 504; the other end of the screw 503 is arranged in the cavity 507; a feeding port 505 is formed in the shell 504, the feeding port 505 is located right below the material passing pipe 6 close to one end of the base 1, and a discharging port 508 is formed in one end, far away from the first motor 501, of the shell 504.
The screw mechanism 5 is not limited to the single screw mechanism mentioned in the present embodiment, but also includes a twin screw mechanism mentioned in the prior art, and can be applied to the present apparatus.
In the prior art, the operation of a machine needs to be suspended due to the fact that a feeding pipe or a feeding device needs to be cleaned, and the operation can be continued until the feeding pipe or the feeding device is cleaned. However, the moving device 2 designed by the invention is matched with the screw mechanism 5, and when the feeding pipe or the feeding device at one end is cleaned, the moving device 2 is controlled to move, so that the feeding port is moved into the feeding pipe or the feeding device at the other end, the continuous operation of the device is ensured, and the operation efficiency is improved.
Opening and closing door gear 8 includes that lead screw 803 both ends pass through the bearing frame 802 and install on the inner wall of siphunculus 3, and bearing frame 802 passes through the mounting screw on the inner wall of siphunculus 3, and lead screw 803 one end screw thread is installed in two 801 motors, and screw thread installation has removal seat 804 on the lead screw 803, removes seat 804 and has lock door 805 through the mounting screw, and slide rail seat 806 passes through the mounting screw on the bearing frame 802, please heavily refer to fig. 5, is equipped with slide 807 in the slide 806, in slide 807 is arranged in to removal seat 804, when two 801 drives removal seat 804 and removes, slide 807 can guarantee to remove more stable that seat 804 removed.
The door opening and closing device is not limited to the structure, and the door opening and closing device further comprises two lock doors which are respectively and symmetrically arranged along the two feed inlets 9, the motor controls the screw rod to rotate, the lock doors are driven to move oppositely to close the feed inlets 9, and the feed inlets 9 are opened through back movement.
The second motor 801, the first motor 501, the cylinder 202 and the magnetic switch are externally connected with a PLC controller, and the PLC is used as a central control system through a communication coupling connection mode, and the program input and operation control of the whole machine are realized through a touch screen, so that the automation of the whole processing process is realized. The control system can be used as a system for connecting each execution element to move according to a logic track, and the execution elements are controlled to operate according to the required operation steps through programming.
Based on the above device, embodiment 1 of the present invention further provides a method for controlling a screw combination structure of a screw extruder, including the following steps:
step one, controlling a PLC to open a motor II 801 and a motor I501 corresponding to a feeding port 505 at one end, wherein the motor II 801 controls a lead screw 803 to rotate, so as to drive a locking door 805 to move along the length direction of the lead screw 803 and open the feeding port 505; meanwhile, materials are manually fed into the feeding hole 9, enter the screw mechanism 5 through the feeding pipe 4, the material passing pipe 6 and the feeding hole 505, the first motor 501 drives the screw 503 to rotate, the screw 503 drives the materials to move forwards, the materials gradually change into linear motion along with the rotation motion of the screw, the linear motion is pushed towards the head direction of the screw, and the materials are compressed, heated, softened and stirred to be mixed;
step two, when the device works to a feeding pipe at one end or the feeding device needs to be cleaned, a manual control program transfers the position of a feeding port 505, a PLC is controlled to open the air cylinders 202 at two ends, the motor II 801 at one end is reversely rotated, the motor II 801 at the other end is forwardly rotated, namely, the feeding port 505 at one end is closed, the feeding port at the other end is opened, and the initial position of the air cylinder 202 is a zero stroke position;
step three, when the cylinder 202 moves to the full stroke position, the feeding port 505 moves to the position below the material passing pipe 6 at the other end, the magnetic switch detects the position of the piston and transmits a signal to the PLC, and the PLC controls the cylinder 202 to be closed; meanwhile, the second motor 801 drives the feeding port 505 at the other end to be opened;
step four, when a feeding pipe or a feeding device at the other end of the device needs to be cleaned, controlling a PLC (programmable logic controller) to start the air cylinders 202 at the two ends, reversely rotating the motor II 801 at the other end, positively rotating the motor II 801 at one end, namely closing the feeding port 505 at the other end, opening the feeding port at one end, retracting the air cylinders 202 to a zero stroke position, detecting the position of a piston by a magnetic switch, transmitting a signal to the PLC, controlling the PLC to close the air cylinders 202, and moving the feeding ports 505 to an initial position;
and fifthly, when the device works to the feeding pipe at one end or the feeding device needs to be cleaned, repeating the operation.
Example 2
As shown in fig. 6, the screw rod assembly structure further includes a fan 7 mounted on the base 1 through screws, the fan 7 is located at one end of the through pipe 3, and the two ends of the through pipe 3 are through holes, so as to facilitate cleaning of residual materials in the through pipe 3.
Based on the above device, embodiment 2 of the present invention further provides a method for controlling a screw combination structure of a screw extruder, including the following steps:
step one, controlling a PLC to open a motor II 801 and a motor I501 corresponding to a feeding port 505 at one end, wherein the motor II 801 controls a lead screw 803 to rotate, so as to drive a locking door 805 to move along the length direction of the lead screw 803 and open the feeding port 505; meanwhile, materials are manually fed into the feeding hole 9, enter the screw mechanism 5 through the feeding pipe 4, the material passing pipe 6 and the feeding hole 505, the first motor 501 drives the screw 503 to rotate, the screw 503 drives the materials to move forwards, the materials gradually change into linear motion along with the rotation motion of the screw, the linear motion is pushed towards the head direction of the screw, and the materials are compressed, heated, softened and stirred to be mixed;
step two, when the device works to a feeding pipe at one end or the feeding device needs to be cleaned, a manual control program transfers the position of a feeding port 505, a PLC is controlled to open the air cylinders 202 at two ends, the motor II 801 at one end is reversely rotated, the motor II 801 at the other end is forwardly rotated, namely, the feeding port 505 at one end is closed, the feeding port at the other end is opened, and the initial position of the air cylinder 202 is a zero stroke position;
step three, when the cylinder 202 moves to the full stroke position, the feeding port 505 moves to the position below the material passing pipe 6 at the other end, the magnetic switch detects the position of the piston and transmits a signal to the PLC, and the PLC controls the cylinder 202 to be closed; meanwhile, the second motor 801 drives the feeding port 505 at the other end to be opened;
step four, when the feeding pipe or the feeding device at the other end of the device needs to be cleaned, the PLC is controlled to open the air cylinders 202 at the two ends, the motor II 801 at the other end is reversely rotated, the motor II 801 at one end is positively rotated, namely, the feeding port 505 at the other end is closed, the feeding port at one end is opened, the air cylinders 202 retract to a zero stroke position, the magnetic switches detect the position of the piston, signals are transmitted to the PLC, the PLC controls the closing of the air cylinders 202, and at the moment, the feeding ports 505 move to an initial position.
Step five, when the device works to a feeding pipe at one end or the feeding device needs to be cleaned, repeating the operation;
and step six, after the operation is finished, the fan 7 is started, and the fan 7 at one end of the through pipe 3 blows the residual materials in the through pipe 3 to the through hole at the other end of the through pipe 3.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A screw combination structure of a screw extruder comprises a base (1), a through pipe (3) arranged on the base (1), a feeding pipe (4) arranged on one side of a channel (3), and a material passing pipe (6) arranged on the other side of the channel (3);
it is characterized by also comprising
The feeding device comprises a feeding hole (9), wherein two feeding holes (9) are formed in a through pipe (3), a feeding pipe (4) is positioned right above the feeding hole (9), and a material passing pipe (6) is positioned right below the feeding hole (9);
the opening and closing door device (8) is arranged on the inner wall of the through pipe (3) and is positioned right above the feed port (9) and provided with the opening and closing door device (8);
a moving device (2), a moving device (2) installed on the base (1), and the moving device (2) is installed at one side of the channel (3);
screw rod mechanism (5), screw rod mechanism (5) on mobile device (2) are installed through the screw, are equipped with pan feeding mouth (505) on screw rod mechanism (5), just pan feeding mouth (505) are located and are close to under material passing pipe (6) of base (1) one end to mobile device (2) can drive screw rod mechanism (5) and change between two feed inlets (9).
2. Screw assembly structure of a screw extruder according to claim 1, characterized in that the moving means (2) comprises
The fixing seat (204) is arranged on the fixing seat (204) on the base (1), and the fixing seat (204) is made of aluminum section;
the air cylinders (202) are mounted at two ends of the fixing seat (204) through air cylinder fixing seats (201), and the air cylinder fixing seats (201) are fixed through screws;
the magnetic switch is arranged at the two ends of the air cylinder (202);
the mounting seat (203) is mounted on the mounting seat (203) at the piston end of the cylinder (201);
the screw mechanism (5) is arranged on the mounting seat (203).
3. Screw combination for a screw extruder according to claim 2, characterised in that the distance between the two feed openings (9) is equal to the stroke distance of the cylinder (202).
4. Screw combination for a screw extruder, according to claim 2, characterized in that the screw mechanism (5) comprises
The motor I (501) is arranged on the mounting seat (203) at one end of the fixing seat (204);
the transmission shaft (506) is mounted on the first motor (501) in a threaded mode;
one end of the screw rod (503) is connected with the transmission shaft (506) through the coupler (502);
the shell (504) is installed on the installation seat (203) at the other end, a cavity (507) is formed in the shell (504), and the other end of the screw rod (503) is arranged in the cavity (507);
the feeding port (505) is formed in the shell (504), and the feeding port (505) is located right below the material passing pipe (6) close to one end of the base (1);
and a discharge hole (508), wherein the end of the shell (504) far away from the first motor (501) is provided with the discharge hole (508).
5. Screw combination for a screw extruder, according to claim 1, characterized in that the screw mechanism (5) is a twin-screw mechanism.
6. Screw assembly structure of a screw extruder according to claim 1, characterized in that the door opening and closing means (8) comprises
The two ends of the screw rod (803) are arranged on the inner wall of the through pipe (3) through a bearing seat (802);
a second motor (801), wherein one end of the screw rod (803) is installed in the second motor (801) in a threaded manner;
the screw rod (803) is provided with a movable seat (804) in a threaded manner;
a door (805) is locked, and the movable seat (804) is provided with the door (805);
a slide rail seat (806) mounted on the bearing seat (802);
the slide rail (807) is arranged in the slide rail seat (806), and the moving seat (804) is arranged in the slide rail (807).
7. The screw combination structure of a screw extruder according to claim 1, wherein the door opening and closing device comprises two locking doors symmetrically arranged along the two feeding ports (9), the motor controls the screw to rotate, the locking doors are driven to move oppositely to close the feeding ports (9), and the back movement opens the feeding ports (9).
8. Screw combination structure of a screw extruder according to claim 1, further comprising a fan (7) mounted on the base (1), wherein the fan (7) is located at one end of the through pipe (3), and the through pipe (3) has through holes at both ends.
9. The screw combination structure of the screw extruder according to any one of claims 1 to 8, wherein the motor II (801), the motor I (501), the cylinder (202) and the magnetic switch are all externally connected with a PLC controller through a communication coupling connection mode.
10. A method for controlling a screw combination structure of a screw extruder according to claim 1, comprising the steps of:
s1, controlling the PLC to open a motor II (801) and a motor I (501) corresponding to the feeding port (505) at one end, and controlling the screw rod (803) to rotate by the motor II (801), so that the door (805) is driven to move along the length direction of the screw rod (803), and the feeding port (505) is opened; meanwhile, materials are manually fed into the feed port (9), the materials enter the screw mechanism (5) through the feed pipe (4), the material passing pipe (6) and the feed inlet (505), the first motor (501) drives the screw (503) to rotate, the screw (503) drives the materials to move forwards, the materials are gradually changed into linear motion along with the rotation motion of the screw, the linear motion is pushed towards the head of the screw, and the materials are compressed, heated, softened and stirred to be mixed;
s2, when the device works to a feeding pipe at one end or the feeding device needs to be cleaned, a manual control program transfers the position of a feeding port (505), the PLC is controlled to start the air cylinders (202) at the two ends, the motor II (801) at one end is reversely rotated, the motor II (801) at the other end is forwardly rotated, namely, the feeding port (505) at one end is closed, the feeding port at the other end is opened, and the initial position of the air cylinder (202) is a zero stroke position;
s3, when the air cylinder (202) moves to the full stroke position, the feeding port (505) moves to the position below the material passing pipe (6) at the other end, the magnetic switch detects the position of the piston and transmits a signal to the PLC, and the PLC controls the air cylinder (202) to be closed; meanwhile, a second motor (801) drives a feeding port (505) at the other end to be opened;
s4, when a feeding pipe or a feeding device at the other end of the device needs to be cleaned, controlling a PLC to start the air cylinders (202) at the two ends, reversely rotating the motor II (801) at the other end, positively rotating the motor II (801) at one end, namely closing the feeding port (505) at the other end, starting the feeding port at one end, retracting the air cylinders (202) to a zero stroke position, detecting the position of a piston by a magnetic switch, transmitting a signal to the PLC, controlling the air cylinders (202) to be closed by the PLC, and moving the feeding ports (505) to an initial position;
s5, when the feeding pipe or the feeding device which operates to one end again needs to be cleaned, the following two control methods are adopted:
d1, when the device is operated to a feeding pipe at one end or the feeding device needs to be cleaned, repeating the operation;
d2, when the device is operated to a feeding pipe at one end or the feeding device needs to be cleaned, repeating the operation; after the operation is finished, in order to facilitate cleaning of the residual materials in the through pipe (3), the fan (7) is started, and the fan (7) at one end of the through pipe (3) blows the residual materials in the through pipe (3) to the through hole at the other end of the through pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318874.8A CN114030159B (en) | 2021-11-08 | 2021-11-08 | Screw rod combined structure of screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318874.8A CN114030159B (en) | 2021-11-08 | 2021-11-08 | Screw rod combined structure of screw extruder |
Publications (2)
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| CN208375937U (en) * | 2018-06-18 | 2019-01-15 | 浙江阮氏塑业有限公司 | PVC pipe extruder with continuous feeding device |
| CN208730311U (en) * | 2018-08-27 | 2019-04-12 | 河北永德橡塑制品有限公司 | A kind of PVC pipe thermoplastic outlet cleaning structure |
| CN209224526U (en) * | 2018-12-14 | 2019-08-09 | 新乡爱康建材有限公司 | A kind of plastic pipe production color conversion apparatus |
| CN213055894U (en) * | 2020-06-29 | 2021-04-27 | 江苏金美达新材料有限公司 | Screw extrusion device for fluffy melt-blown fabric processing |
| CN213733057U (en) * | 2020-08-17 | 2021-07-20 | 雄县鑫方盛塑料制品有限公司 | Injection molding machine feed arrangement of production mutual-inductor shell |
| CN113510927A (en) * | 2021-04-27 | 2021-10-19 | 江苏三帝康复科技有限公司 | Accurate feedway of many materials horizontal gradient 3D printer |
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| CN208375937U (en) * | 2018-06-18 | 2019-01-15 | 浙江阮氏塑业有限公司 | PVC pipe extruder with continuous feeding device |
| CN208730311U (en) * | 2018-08-27 | 2019-04-12 | 河北永德橡塑制品有限公司 | A kind of PVC pipe thermoplastic outlet cleaning structure |
| CN209224526U (en) * | 2018-12-14 | 2019-08-09 | 新乡爱康建材有限公司 | A kind of plastic pipe production color conversion apparatus |
| CN213055894U (en) * | 2020-06-29 | 2021-04-27 | 江苏金美达新材料有限公司 | Screw extrusion device for fluffy melt-blown fabric processing |
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