阅读说明：本技术 一种生产pvc低发泡板的双螺旋喂料机构 (Double-screw feeding mechanism for producing PVC low-foaming plate ) 是由 麦树芬 黄崇烈 于 2020-06-18 设计创作，主要内容包括：本发明提供一种生产PVC低发泡板的双螺旋喂料机构,属于PVC低发泡板制备技术领域,其包括一双螺杆送料通道、一震动电机、一吹尘枪以及一控制系统,其中,所述双螺旋送料通道内并列设置两个送料螺杆,可以确保PVC低发泡板原料均匀的从双螺旋送料通道内输送至下一道工序,有效的提高PVC低发泡板原料的输送效率,提高生产的稳定性；设置震动电机与吹尘枪,当PVC低发泡板原料传输完毕后,通过震动电机和/或吹尘枪将双螺旋送料通道内侧壁以及送料螺杆上附着的PVC低发泡板原料震落,更好的对双螺旋送料通道进行清洁,进而提高了该双螺旋喂料机构的传输性能；同时,设置控制系统使得达到准确控制每次的下料量以及有效避免了上料电机烧坏。(The invention provides a double-screw feeding mechanism for producing a PVC low-foaming plate, which belongs to the technical field of PVC low-foaming plate preparation, and comprises a double-screw feeding channel, a vibration motor, a dust blowing gun and a control system, wherein two feeding screws are arranged in the double-screw feeding channel in parallel, so that the raw material of the PVC low-foaming plate can be uniformly conveyed from the double-screw feeding channel to the next process, the conveying efficiency of the raw material of the PVC low-foaming plate is effectively improved, and the production stability is improved; the vibration motor and the dust blowing gun are arranged, after the PVC low-foaming plate raw material is conveyed, the vibration motor and/or the dust blowing gun shake off the inner side wall of the double-spiral feeding channel and the PVC low-foaming plate raw material attached to the feeding screw, so that the double-spiral feeding channel is better cleaned, and the conveying performance of the double-spiral feeding mechanism is further improved; meanwhile, the control system is arranged, so that the blanking amount at each time can be accurately controlled, and the burning of a feeding motor is effectively avoided.)

1. The utility model provides a two spiral feed mechanism of low foaming board of production PVC, its is used for carrying the low foaming board raw materials of PVC to a PVC low foaming board extruder, includes a feed cylinder, the upper end of feed cylinder is provided with a feed inlet, the lower extreme of feed cylinder is provided with a discharge gate, its characterized in that: the double-screw feeding mechanism for producing the PVC low-foaming board further comprises a double-screw feeding channel, a feeding motor and a vibrating motor;

the double-screw feeding channel is arranged below the charging barrel, one end of the double-screw feeding channel is communicated with the discharging port, the other end of the double-screw feeding channel is connected with the PVC low-foaming plate extruder, and two feeding screws are arranged in the double-screw feeding channel in parallel;

the feeding motor is arranged on one side of the double-spiral feeding channel, and the output end of the feeding motor is connected with the two feeding screw rods and used for driving the feeding screw rods to rotate;

the vibration motor is arranged on the outer side of the double-spiral feeding channel.

2. The double-helix feeding mechanism for producing PVC low-foaming boards as claimed in claim 1, wherein the feeding motor is connected with the feeding screw through a speed reducing mechanism.

3. The double-screw feeding mechanism for producing the PVC low-foaming board as claimed in claim 1, further comprising a dust blowing gun, wherein the dust blowing gun is arranged on one side of the double-screw feeding channel far away from the discharge hole.

4. The double-helix feeding mechanism for producing PVC low-foaming plates as claimed in claim 3, wherein the dust blowing gun comprises a nozzle, a connecting sleeve is arranged outside the nozzle, the upper part of the connecting sleeve is of a cylindrical hollow structure, the upper part of the connecting sleeve is in interference fit with the outer wall of the nozzle, the lower part of the connecting sleeve is of a truncated cone-shaped hollow structure, the lower part of the connecting sleeve is connected with an amplifier through threads, and the amplifier is provided with a plurality of air outlets.

5. The double spiral feeding mechanism for manufacturing PVC low foaming boards as claimed in claim 1, wherein the bottom of the double spiral feeding channel is provided with a predetermined number of shock absorbing pads.

6. The double spiral feeding mechanism for producing PVC low foaming board as claimed in claim 1, wherein the outer surface of the feeding screw does not contact with the inner wall of the double spiral feeding channel.

7. The double-helix feeding mechanism for producing PVC low-foaming boards as claimed in claim 1, further comprising a control system, wherein the control system comprises a sensor module, a microprocessor module, a wireless transmission module and a human-machine interaction module; wherein

The sensor module comprises a first sensor, the first sensor is arranged on one side, away from the discharge port, of the double-spiral feeding channel and is used for collecting discharge information of the PVC low-foaming board raw material in the double-spiral feeding channel;

the wireless transmission module is used for sending the discharging information acquired by the sensor module to the micro-processing module and the man-machine interaction module;

the micro-processing module receives the discharging information transmitted by the wireless transmission module, and when the discharging information is displayed to be equal to a preset discharging information or 0, the micro-processing module controls the feeding motor to stop working;

the human-computer interaction module is used for displaying the discharging information acquired by the sensor module.

8. The double-screw feeding mechanism for producing PVC low-foaming boards as claimed in claim 7, wherein the sensor module comprises a second sensor, the second sensor is connected with the micro-processing module, and the second sensor is arranged on one side of the double-screw feeding channel close to the discharging port and is used for collecting feeding information of the raw materials of the PVC low-foaming boards in the double-screw feeding channel.

9. The double-helix feeding mechanism for producing the PVC low-foaming board as claimed in claim 8, wherein the first sensor and/or the second sensor is/are a rotation-resistant level switch or a tuning fork level switch.

Technical Field

The invention relates to the technical field of PVC low-foaming board preparation, in particular to a double-helix feeding mechanism for producing a PVC low-foaming board.

Background

Polyvinyl chloride (pvc), which is abbreviated as pvc, is a polymer obtained by polymerizing Vinyl Chloride Monomer (VCM) with an initiator such as peroxide and azo compound, or under the action of light and heat according to a radical polymerization mechanism. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.

The PVC low foaming plate is widely applied to industries such as building materials, packaging, medicines and the like, the production comprises three methods of a free foaming method, a skinning foaming plate and a road blocking method, the three methods all comprise that the mixed PVC foaming plate raw materials sequentially pass through a feeding mechanism and then reach an extruder, the feeding mechanism in the prior art mostly adopts single-screw feeding, and PVC powder is difficult to be uniformly conveyed to the next procedure when the feeding mechanism adopting the structure feeds, so that the PVC low foaming plate made of the PVC foaming plate raw materials has the phenomena of unstable surface quality, density and the like, the conveying efficiency is low, and the requirement of rapid production is difficult to meet; in addition, after PVC foaming board raw materials are carried to feeding device's feed cylinder in, most of piles up in the discharge gate department of feed cylinder, are difficult to make the quick even input pay-off passageway of PVC foaming board raw materials, have seriously influenced production efficiency, have brought great difficulty for the production of the low foaming board of PVC.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the double-screw feeding mechanism which has a simple structure, can uniformly convey the raw materials of the foaming plate to the next process, has stable production and high conveying efficiency, avoids powder accumulation, and improves the production efficiency for producing the PVC low-foaming plate.

A double-screw feeding mechanism for producing a PVC low-foaming plate is used for conveying a PVC low-foaming plate raw material to a PVC low-foaming plate extruder and comprises a charging barrel, wherein a feeding hole is formed in the upper end of the charging barrel, a discharging hole is formed in the lower end of the charging barrel, and the double-screw feeding mechanism for producing the PVC low-foaming plate further comprises a double-screw feeding channel, a feeding motor and a vibration motor; the double-screw feeding channel is arranged below the charging barrel, one end of the double-screw feeding channel is communicated with the discharging port, the other end of the double-screw feeding channel is connected with the PVC low-foaming plate extruder, and two feeding screws are arranged in the double-screw feeding channel in parallel; the feeding motor is arranged on one side of the double-spiral feeding channel, and the output end of the feeding motor is connected with the two feeding screw rods and used for driving the feeding screw rods to rotate; the vibration motor is arranged on the outer side of the double-spiral feeding channel.

Preferably, the feeding motor is connected with the feeding screw through a speed reducing mechanism.

Preferably, the double-screw feeding mechanism for producing the PVC low-foaming board further comprises a dust blowing gun, wherein the dust blowing gun is arranged on one side, far away from the discharge hole, of the double-screw feeding channel.

Furthermore, blow the dirt rifle and contain a nozzle, be equipped with a adapter sleeve outside the nozzle, the upper portion of adapter sleeve is cylindrical hollow structure, and the upper portion of this adapter sleeve is interference fit with the outer wall of nozzle, the adapter sleeve lower part is round platform shape hollow structure, and a amplifier is passed through in the lower part of this adapter sleeve threaded connection, be equipped with a plurality of venthole on the amplifier.

Preferably, a predetermined number of shock absorption pads are arranged at the bottom of the double-spiral feeding channel.

Preferably, the outer surface of the feeding screw is not in contact with the inner wall of the double-spiral feeding channel.

Preferably, the double-helix feeding mechanism for producing the PVC low-foaming board further comprises a control system, wherein the control system comprises a sensor module, a micro-processing module, a wireless transmission module and a man-machine interaction module; the sensor module comprises a first sensor, the first sensor is arranged on one side, away from the discharge port, of the double-spiral feeding channel and is used for collecting discharge information of the PVC low-foaming board raw material in the double-spiral feeding channel; the wireless transmission module is used for sending the discharging information acquired by the sensor module to the micro-processing module and the man-machine interaction module; the micro-processing module receives the discharging information transmitted by the wireless transmission module, and when the discharging information is displayed to be equal to a preset discharging information or 0, the micro-processing module controls the feeding motor to stop working; the human-computer interaction module is used for displaying the discharging information acquired by the sensor module.

Furthermore, the sensor module comprises a second sensor, the second sensor is connected with the micro-processing module, and the second sensor is arranged on one side, close to the discharge port, of the double-spiral feeding channel and is used for collecting feeding information of the PVC low-foaming board raw material in the double-spiral feeding channel.

Furthermore, the first sensor and/or the second sensor adopt a rotation resistance material level switch or a tuning fork material level switch.

Compared with the prior art, the invention has the following beneficial effects:

(1) according to the double-screw feeding mechanism for producing the PVC low-foaming board, the two feeding screws are arranged in the double-screw feeding channel in parallel, so that the raw material of the PVC low-foaming board can be uniformly conveyed to the next process from the double-screw feeding channel, the conveying efficiency of the raw material of the PVC low-foaming board is effectively improved, and the production stability is improved.

(2) According to the double-screw feeding mechanism for producing the PVC low-foaming board, the vibration motor is arranged on the outer side of the double-screw feeding channel, and after the PVC low-foaming board raw materials are conveyed, the vibration motor shakes off the inner side wall of the double-screw feeding channel and the PVC low-foaming board raw materials attached to the feeding screw, so that the conveying performance of the double-screw feeding mechanism is improved.

(3) According to the double-spiral feeding mechanism for producing the PVC low-foaming board, the first sensor is used for collecting the discharging information of the raw material of the PVC low-foaming board in the double-spiral feeding channel, and when the discharging information is displayed to be equal to a preset discharging information or 0, the microprocessor module controls the feeding motor to stop working; specifically, the discharging information is displayed to be equal to preset discharging information, which indicates that the raw material of the PVC low-foaming board is enough, and the microprocessor module controls the feeding motor to stop working at the moment, so that the discharging amount of each time is accurately controlled; when the discharging information shows that the discharging information is 0, the situation that the double-helix feeding channel is blocked or stuck is possibly caused, and the microprocessor module controls the feeding motor to stop working, so that the feeding motor is effectively prevented from being burnt out.

Drawings

FIG. 1 is a schematic structural diagram of a double-screw feeding mechanism for producing a PVC low-foaming board according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a twin-screw feeding channel structure of a double-screw feeding mechanism for producing a PVC low-foaming plate according to an embodiment of the invention;

FIG. 3 is a schematic diagram of a control system module of a double-helix feeding mechanism for producing a PVC low-foaming board according to an embodiment of the invention;

in the figure, 1-a charging barrel, 2-a double-screw feeding channel, 3-a feeding motor, 4-a vibrating motor, 5-a feeding screw, 6-a dust blowing gun, 61-a nozzle, 62-a connecting sleeve, 63-an amplifier, 7-a shock pad, 8-a control system, 81-a sensor module, 82-a micro-processing module, 83-a wireless transmission module, 84-a man-machine interaction module, 811-a first sensor, 812-a second sensor and 9-a speed reducing mechanism.

Detailed Description

The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present embodiment provides a double-screw feeding mechanism for producing a PVC low-foaming sheet, which is used for conveying a raw material of the PVC low-foaming sheet to a PVC low-foaming sheet extruder, and includes a charging barrel 1, a double-screw feeding channel 2, a feeding motor 3, and a vibration motor 4.

The upper end of the charging barrel 1 is provided with a feeding hole, the lower end of the charging barrel 1 is provided with a discharging hole, the feeding hole is connected with a full-automatic spiral feeding machine of a PVC low-foaming plate, and the mixed PVC low-foaming plate raw material reaches the feeding hole of the charging barrel 1 through the full-automatic spiral feeding machine of the PVC low-foaming plate; the double-screw feeding channel is arranged below the charging barrel 1, one end of the double-screw feeding channel 2 is communicated with the discharging port, and the other end of the double-screw feeding channel 2 is connected with the PVC low-foaming plate extruder.

With reference to fig. 2, in this embodiment, two feeding screws 5 are arranged in parallel in the twin-screw feeding channel 2, and preferably, the outer surfaces of the feeding screws 5 are not in contact with the inner wall of the twin-screw feeding channel; the feeding motor 3 is arranged on one side of the double-spiral feeding channel, and the output end of the feeding motor 3 is connected with the two feeding screws 5 and used for driving the feeding screws 5 to rotate; set up two pay-off screw rods 5, can ensure that the even one process of carrying to next in the double helix pay-off passageway of follow of the low foaming board raw materials of PVC, the transport efficiency of the low foaming board raw materials of effectual improvement PVC improves the stability of production. Preferably, the feeding motor 3 is connected with the feeding screw 5 through a speed reducing mechanism 9, so that the feeding motor 3 drives the feeding screw 5 to rotate better.

Referring to fig. 1, the vibration motor 4 is arranged outside the double-helix feeding channel, and after the PVC low-foaming sheet raw material is completely transmitted, the vibration motor 4 shakes off the inner side wall of the double-helix feeding channel and the PVC low-foaming sheet raw material attached to the feeding screw 5, so that the transmission performance of the double-helix feeding mechanism is improved. In order to reduce the damage of the machine caused by the excessive vibration of the double-helix feeding machine constructed by the vibration motor 4, a preset number of shock absorption pads 7 are arranged at the bottom of the double-helix feeding channel.

In order to better clean the inner side wall of the double-screw feeding channel and PVC low-foaming plate raw materials attached to the feeding screw 5, the double-screw feeding mechanism for producing the PVC low-foaming plate further comprises a dust blowing gun 6, wherein the dust blowing gun 6 is arranged on one side, away from the discharge hole, of the double-screw feeding channel 2, and is specifically connected with the outer wall of the double-screw feeding channel 2 through a chain. Preferably, the dust blowing gun 6 comprises a nozzle 61, a connecting sleeve 62 is arranged outside the nozzle 61, the upper part of the connecting sleeve 62 is of a cylindrical hollow structure, the upper part of the connecting sleeve 62 is in interference fit with the outer wall of the nozzle 61, the lower part of the connecting sleeve 62 is of a round table-shaped hollow structure, the lower part of the connecting sleeve 62 is connected with an amplifier 63 through threads, and the amplifier 63 is provided with a plurality of air outlets. When needs clean twin-screw pay-off passageway 2's inside, the optional shock dynamo 4 of operating personnel or blow dirt rifle 6 or both combine jointly and carry out cleaning operation, when choosing to blow dirt rifle 6 and carry out cleaning operation, blow the dirt operation to twin-screw pay-off passageway 2 through blowing dirt rifle 6 for shake off the low foaming board raw materials of PVC in twin-screw pay-off passageway 2, clear the powder that falls off again after that, make fine completion cleaning operation.

Referring to fig. 3, the double helix feeding mechanism for producing PVC low foaming board further comprises a control system 8, wherein the control system 8 comprises a sensor module 81, a microprocessor module 82, a wireless transmission module 83 and a human-machine interaction module 84; wherein the content of the first and second substances,

the sensor module 81 comprises a first sensor 811 and a second sensor 812, wherein the first sensor 811 is arranged on one side of the double-spiral feeding channel far away from the discharge hole and is used for collecting discharge information of the PVC low-foaming board raw material in the double-spiral feeding channel; specifically, when the PVC low-foaming board raw material passes through one side of the double-spiral feeding channel, which is far away from the discharge port, the discharging information is displayed as positive and the quantity is changed continuously, when no PVC low-foaming board raw material passes through the discharging information, the quantity of the feeding information is maintained, and the discharging information returns to 0 after a period of time; the second sensor 812 is arranged on one side of the double-spiral feeding channel close to the discharge port and is used for acquiring feeding information of the raw material of the PVC low-foaming board in the double-spiral feeding channel; specifically, when the PVC low-foaming board raw material passes through one side, close to the discharge port, of the double-spiral feeding channel, the feeding information is displayed to be positive and the quantity of the feeding information is changed continuously, when no PVC low-foaming board raw material passes through the position, the quantity of the feeding information is maintained, and the feeding information returns to 0 after a period of time;

the wireless transmission module 83 is configured to send the discharging information acquired by the sensor module 81 to the micro-processing module 82 and the human-computer interaction module 84; the microprocessor 82 receives the information transmitted by the wireless transmission module 83 for judgment and makes a corresponding instruction, and the human-computer interaction module 84 receives the information transmitted by the wireless transmission module 83 for an operator to know the real-time state of the double-helix feeding mechanism for producing the PVC low-foaming board.

The micro-processing module 82 receives the feeding information and the discharging information transmitted by the wireless transmission module 83, and when the discharging information is displayed to be equal to a preset discharging information, which indicates that the raw material of the PVC low-foaming board is enough, the micro-processing module controls the feeding motor 3 to stop working, so that the discharging amount of each time is accurately controlled; when the discharge information shows that the discharge information is 0, the situation that the material is possibly blocked or stuck at the feed inlet or in the feed delivery cylinder 1 is indicated, and the microprocessor module controls the feeding motor 3 to stop working at the moment, so that the burning of the feeding motor 3 is effectively avoided. When the feeding information shows that the feeding information is 0, the situation that the PVC low-foaming plate raw material is blocked or stuck possibly occurs at the joint of the charging barrel 1 and the double-spiral feeding channel is indicated, at the moment, the microprocessor module controls the feeding motor 3 to stop working, and the feeding motor 341 is effectively prevented from being burnt out.

Preferably, the first sensor 811 and/or the second sensor 812 employ a rotation resistance level switch or a tuning fork level switch.

Preferably, the human-computer interaction module 84 comprises a display screen, so that an operator can know the actual production condition of the full-automatic spiral feeding machine for producing the PVC low-foaming board in real time, and the management of work is facilitated. The microprocessor module is a plc processor.

Preferably, the micro-processing module 82 is further connected with a buzzer or an alarm, when the feeding information shows that the feeding information is 0 and/or the discharging information shows that the feeding information shows that the discharging information.

According to the double-screw feeding mechanism for producing the PVC low-foaming board, the two feeding screws 5 are arranged in the double-screw feeding channel in parallel, so that the raw material of the PVC low-foaming board can be uniformly conveyed from the double-screw feeding channel to the next procedure, the conveying efficiency of the raw material of the PVC low-foaming board is effectively improved, and the production stability is improved; the vibration motor 4 and the dust blowing gun 6 are arranged, after the PVC low-foaming plate raw material is conveyed, the inner side wall of the double-spiral feeding channel and the PVC low-foaming plate raw material attached to the feeding screw 5 are shaken off through the vibration motor 4 and/or the dust blowing gun 6, the double-spiral feeding channel is better cleaned, and the conveying performance of the double-spiral feeding mechanism is further improved; meanwhile, the control system 8 is arranged, so that the accurate control of the blanking amount at each time is achieved, and the burning of the feeding motor 3 is effectively avoided.

The above disclosure is only one preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.