CN108838845B

CN108838845B - Mechanical device for renovating ceramic burning bearing plate

Info

Publication number: CN108838845B
Application number: CN201810685774.0A
Authority: CN
Inventors: 陈楚池; 徐志强
Original assignee: GUANGDONG PROVINCE CERAMIC RESEARCH INSTITUTE
Current assignee: GUANGDONG PROVINCE CERAMIC RESEARCH INSTITUTE
Priority date: 2017-03-15
Filing date: 2017-03-15
Publication date: 2020-05-22
Anticipated expiration: 2037-03-15
Also published as: CN106695515B; CN106695515A; CN108838845A

Abstract

The renovation equipment for prolonging the service life of the ceramic burning bearing plate belongs to the field of ceramic mechanical equipment and comprises a conveying platform for conveying the ceramic burning bearing plate and a decontamination chamber for removing pollutants on the surface of the burning bearing plate. The decontamination chamber mainly comprises an electric decontamination assembly consisting of a mounting frame, a grinding disc motor and a grinding disc, and a position adjusting mechanism for adjusting the position of the grinding disc. The ceramic burning bearing plate has the advantages that pollutants of the ceramic burning bearing plate can be quickly and effectively ground, the burning bearing plate is renovated, the power consumption of a grinding disc motor can be reduced, more importantly, the main body of the burning bearing plate is prevented or reduced from being worn, and the service life of the burning bearing plate can be prolonged.

Description

Mechanical device for renovating ceramic burning bearing plate

Technical field the present invention is a divisional application of chinese patent application No. 2017101539253, which is a remedy for improper modification of claims in response to examination opinions of the original application. The invention relates to a mechanical device for decontamination and renovation of a ceramic burning bearing plate in the field of ceramic industry.

Background arta ceramic setter plate (or setter plate for short) is a common fitting in the field of ceramic industry, and is used for setting a blank of a ceramic product in a ceramic production process, and then transferring the blank into a kiln for sintering. Because of the special use occasions, the ceramic burning bearing plate needs to have the special requirements of high temperature resistance, high strength, high heat conduction performance and low coefficient of expansion with heat and contraction with cold, and is generally made of corundum or zirconia materials at present, and the cost is higher. The ceramic setter plates are generally less worn in use and have a longer service life unless accidentally damaged by a human being. However, when the ceramic setter plate is used, that is, when the setter plate is placed in a kiln for baking, since some ceramic blanks are not uniformly painted on the surface, or are accidentally stuck with paint or dirt, etc., the paint or dirt particles remained on the surface of the ceramic blanks may drip or fall on the setter plate, melt and sinter on the setter plate under high temperature baking, and form a small piece of stain or stain, and a large amount of stains or stains may be accumulated repeatedly during long-term use. When the ceramic blank is placed and sintered, one is that the pollution may contact and adhere to the bottom (foot) of the ceramic blank, so that the bottom of the blank is polluted and abnormal color spots appear, and the other is that under high-temperature roasting, some pigment substances in the color spots and the stains can be re-melted and volatilized, and pigment vapor volatilized in the air can influence the surface pattern and color of the ceramic blank, so that the quality of a ceramic product is influenced.

Because the pollution is sintered on the setter plate at high temperature, the setter plate is very firm as the ceramic product, is not easy to remove by adopting the conventional method, and is easy to cause abrasion to the setter plate. At present, the polluted setter plates are generally used for holding larger ceramic blanks and ceramic blanks with low requirements on colors, and if the pollution is serious due to long service life, the ceramic blanks are directly abandoned or recycled by manufacturers of the setter plates for reprocessing, so that certain economic loss is caused.

The invention aims to disclose equipment for renovating a ceramic setter plate, which can clean and remove pollutants on the surface of the setter plate and reduce the abrasion on a setter plate body.

The ceramic burning furnace comprises a conveying platform, a dirt removing chamber and a heating device, wherein the conveying platform is used for placing a burning bearing plate and conveying the burning bearing plate to the dirt removing chamber; the decontamination chamber comprises a closed shell, and an electric decontamination assembly is arranged in the shell; the decontamination assembly is arranged above the conveying platform and comprises a motor mounting frame, a position adjusting mechanism, a grinding disc motor and a grinding disc; the position adjusting mechanism mainly comprises an adjusting motor and a transmission mechanism, wherein the transmission mechanism is connected with the motor mounting frame and is used for adjusting the position of the motor mounting frame in the vertical (vertical) direction under the driving of the adjusting motor; a group of (a plurality of) millstone motors are downwards arranged on the motor mounting frame, the millstone motors are arranged in a row, the arrangement direction is vertical to the conveying direction of the conveying platform, and the millstone motors are downwards provided with millstones.

The conveying platform comprises a conveying motor, a variable speed transmission mechanism and a group of rollers which are arranged in parallel; the variable speed transmission mechanism is connected with the roller, and the roller rolls under the driving of the transmission motor to drive the burning bearing plate placed on the roller to move forwards.

As an improvement, a probe assembly is arranged in the decontamination chamber in front of the decontamination assembly and used for detecting the burning plate and adjusting the positions of the motor mounting frame and the grinding disc motor in the vertical direction through a control circuit.

The probe assembly is arranged above the conveying platform, connected with the decontamination assembly and linked up and down with the decontamination assembly, and comprises a probe mounting frame, a probe and a linked switch; a row (a plurality of) probes are vertically arranged on the probe mounting rack downwards, and the horizontal arrangement direction of the probes is vertical to the conveying direction of the conveying platform; each probe is elastically connected with the mounting frame through a spring and is in linkage connection with one linkage switch; when the probe assembly moves downwards and the lower end of the probe is contacted with the burning board or pollutants on the burning board, the probe is jacked up by overcoming the elastic force of the spring, so that the linked switch linked with the probe generates state change; the linkage switch is connected to the control circuit, and the control circuit is connected with and drives the work of the adjusting motor.

The method can effectively clean and remove pollutants attached to the surface of the ceramic burning board and keep the surface of the burning board smooth. The clean and decontaminated burning board can be completely used as a new product, thereby realizing the recycling of wastes, reducing the economic loss of enterprises and being beneficial to reducing the waste of resources and the environmental pollution. Meanwhile, the invention not only ensures that the millstone can quickly and effectively grind off pollutants on the burning board, but also reduces the power consumption of the millstone motor, saves electric energy, more importantly, avoids or greatly reduces the abrasion of the burning board main body, and can prolong the service life of the burning board which is repeatedly used.

The invention also comprises an air draft cover, an exhaust fan connected with the air draft cover and an exhaust pipe connected with the exhaust fan, wherein the exhaust fan is arranged at the top of the decontamination chamber shell, and dust generated by the decontamination component is timely exhausted by the exhaust fan. Meanwhile, the decontamination chamber is also provided with a return air inlet which is connected with a blower for pressurization, an air outlet of the blower is connected with a row of air blowing ports, and the outlet position of each air blowing port is just opposite to the lower part of one grinding disc. This design can make the air that the mouth of blowing blew off blow to the mill below with very fast wind speed and pressure, will be easily blown to the space around by the pollutant that the mill ground into powder, is favorable to making the dust in time to be taken away by the air exhauster of top more easily on the one hand, and on the other hand can make mill below and hold the contact department of burning board keep clean, is favorable to making the conveying of holding the burning board to remove and keep smooth and easy and improve the scrubbing effect.

Description of the drawings fig. 1 is a schematic diagram of the structure of the present invention. Fig. 2 is a schematic structural view of the desmear assembly. Fig. 3 is a schematic view of a grinding disc arrangement. Fig. 4 is a schematic structural view of a probe assembly.

Detailed description of the preferred embodimentsthe following is a description of the principles and implementations of the present invention.

The device comprises a conveying platform 2 and a decontamination chamber 1, wherein the conveying platform 2 is used for placing a burning bearing plate and conveying the burning bearing plate to the decontamination chamber and passing through the decontamination chamber; the decontamination chamber 1 is used for removing contaminants on the surface of the ceramic setter plate.

The conveying platform 2 is a common technology of automation equipment, and comprises a conveying motor 21, a variable speed transmission mechanism 22, a conveying frame 25 and a group of rollers 23 which are arranged in parallel; the two ends of the roller 23 are arranged on the transmission frame 25 through bearings; the variable speed transmission mechanism is connected with and drives the roller, the roller is driven by the transmission motor to roll, and the burning bearing plate 4 placed on the roller is driven to move forwards, enter the decontamination chamber and finally pass through the decontamination chamber. The width of the roller 23 is approximately equal to the width of the largest dimension setter, the arrangement interval is smaller than the length of the smallest dimension setter, if necessary, a driven roller 24 is additionally inserted between the rollers driven by the variable speed transmission mechanism, the driven roller is not driven by the transmission mechanism, so that no power is provided, only the driven roller rolls passively, and the auxiliary support function is achieved. The rollers are mechanically strong enough to support the setter plates, so metal rollers are preferred. However, the surface of the roller should not be too smooth to prevent slipping between the roller and the burning board, so a thin rubber layer is preferably sleeved outside the metal roller to form a rubber roller, which is beneficial to reliably driving the burning board to move.

The decontamination chamber 1 comprises a semi-closed shell 11, the shell is made of sheet iron, small windows for the conveying platform to pass through are arranged on two sides of the shell, soft curtains made of rubber strips can be hung on the windows to prevent dust from escaping, and the shell is generally provided with a transparent observation window for an operator to observe the working condition inside; an electric decontamination component 12 is arranged in the shell; the decontamination assembly is mounted above the transfer platform. The structure of the decontamination assembly is shown in FIG. 2, and comprises a motor mounting frame 13, a position adjusting mechanism, a grinding disc motor 16 and a grinding disc 17; the position adjusting mechanism mainly comprises an adjusting motor 14 and a transmission mechanism 15, the adjusting motor 14 generally adopts a stepping motor, the transmission mechanism 15 is connected with the motor mounting frame 13, and under the driving of the control circuit and the adjusting motor, the transmission mechanism 15 converts the axial rotation of the adjusting motor 14 and drives the motor mounting frame 13 to move in the up-down direction so as to adjust the position of the motor mounting frame 13 in the up-down (vertical) direction. A group (a plurality of) grinding disc motors 16 are downwards installed on the motor mounting frame 13, the grinding disc motors are arranged in a row shape, the arrangement direction is vertical to the conveying direction of the conveying platform, namely when the conveying direction of the conveying platform is vertical, the arrangement of the grinding disc motors is horizontal. The grinding disc motor 16 is fixedly mounted on the motor mounting frame 13 through a fastener 19 (a nut and a bolt) and a spring washer 18, and the height of the grinding disc motor can be finely adjusted through the fastener. The output shaft of the millstone motor faces downwards, a millstone 17 is arranged downwards, and the millstone is generally a carborundum millstone with a downward grinding surface. According to the width of the burning bearing plate and the grinding surface diameter of the grinding disc, each row of grinding disc motors are generally 4-8, in order to ensure the decontamination effect, the grinding disc motors can be provided with two rows or even multiple rows, and the positions of the grinding disc motors between the rows are staggered, as shown in figure 3, so that all the surfaces of the burning bearing plate can be covered. In order to save electricity, each grinding disc motor can be provided with an independent power switch, and when the width of the burning bearing plate is smaller and the burning bearing plate is not arranged under the grinding disc motors on two sides, the power of the grinding disc motors can be turned off, so that the waste of electric energy caused by idling is avoided.

Because the scrubbing component of the scrubbing chamber can produce a lot of dust when the pollutant of the burning board is ground at high speed, and the dust is removed in time, which is favorable for improving the scrubbing effect, the top of the scrubbing chamber shell 11 is provided with the air draft cover 31, the exhaust fan 32 connected with the air draft cover and the exhaust pipe 33 connected with the exhaust fan, and the dust produced by the scrubbing component is pumped away in time through the exhaust fan. Meanwhile, a return air inlet 34 is arranged in the decontamination chamber, the return air inlet 34 is also connected with a blower 35 for pressurization, an air outlet of the blower is connected with a row of air blowing ports 36, the number of the air blowing ports can be equal to the number of the grinding discs, and the outlet position of each air blowing port is right opposite to the lower part of one grinding disc 17. The air that the mouth of blowing blew off blows to the mill below with very fast wind speed and pressure, will be easily blown to the space around by the pollutant that the mill ground into powder, is favorable to making the dust more easily to be taken away by the air exhauster of top on the one hand, and on the other hand can make mill below and hold the contact department of burning board keep clean, is favorable to making the conveying of holding the burning board to remove and keep smooth and easy and improve the scrubbing effect. In order to avoid the pollution of dust to the external environment, the air suction pipe 32 and the return air inlet 34 can be connected to the external air dust removal device 3, the air sucked out from the air suction port 32 is filtered and dedusted, and the filtered and dedusted air returns to the return air inlet 34 of the decontamination chamber through the air pipe, so that the internal circulation of the air between the decontamination chamber and the dust removal device is realized, and the pollution to the external environment is avoided. As for the external air dust removing device 3, the filtered dust solid particles with larger particles and the air after dust removal enters the dirt removing chamber again, so the requirement of dust removing effect is not high, and the external air dust removing device can be realized by adopting various simple air filtering and dust removing technologies in the prior art, which does not belong to the technical scope of the application, and the detailed description is omitted here.

When the ceramic burning device works, an operator places the front surface (a polluted surface) of the ceramic burning plate 4 upwards on the conveying platform 2 and conveys the ceramic burning plate into the decontamination chamber 1 under the driving of the roller. Meanwhile, the control circuit controls the adjusting motor to adjust the dirt removing assembly 12 to move slowly from top to bottom, so that the grinding surface of the grinding disc 17 just contacts the surface of the burning plate. Thus, when the burning board on the conveying platform passes through the lower part of the dirt removing assembly, the pollutants on the burning board are ground into dust by the grinding disc rotating at high speed under the dirt removing assembly and are immediately taken away by the upper air draft hood 31 and the air draft fan 32. When the whole burning plate passes through the bottom of the decontamination assembly, the surface of the burning plate is completely grinded by the grinding disc to remove pollutants, and then the burning plate is taken out of the outlet of the decontamination chamber from the conveying platform, so that the purpose of removing the pollutants on the burning plate is achieved. If the setter plates are in the same thickness specification in batches, the height of the decontamination assembly is only required to be adjusted when the first setter plate enters, and then the height of the first setter plate is not required to be adjusted, and decontamination of other setter plates can be continuously performed.

As a further improvement, inside the decontamination chamber 1, in front of the decontamination module 12, there is further provided a probe module 6 for probing the burning board and adjusting the positions of the motor mounting bracket and the grinding disc motor in the up-down (vertical) direction through a control circuit. The probe assembly 6 is arranged above the conveying platform 2, connected with the decontamination assembly 12 and linked up and down with the decontamination assembly. As shown in fig. 4, the probe assembly 6 includes a probe mount 61, a probe 62, and a gang switch 63; a row of a plurality of (generally 5-8) probes 62 are vertically arranged on the probe mounting rack 61 downwards, the horizontal arrangement direction of the probes is vertical to the conveying direction of the conveying platform, namely the probes are transversely arranged, and the width of the whole row of the probes after arrangement is smaller than that of the sintering plate with the smallest size; each probe is elastically connected with the mounting frame 61 through a spring 64, can move up and down in a telescopic manner relative to the probe mounting frame, and is in linkage connection with a linkage switch 63; when the probe assembly 6 moves downwards and the lower end of the probe 62 contacts with the burning plate, the probe is jacked up against the elastic force of the spring, so that the linkage switch 63 linked with the probe generates state change (changes from on to off or from off to on); all the ganged switches are connected to a control circuit (all the ganged switches can be connected to the control circuit after being connected in series), and the control circuit is connected with and drives the adjusting motor (the stepping motor) to work. The relative installation position of the probe assembly and the decontamination assembly is set and finely adjusted, (a fastener 19 of a grinding disc motor can also be finely adjusted), so that the grinding surface at the lower end of a grinding disc of the grinding disc motor and the lower end point of the probe are positioned on the same plane, when the decontamination assembly 12 and the probe assembly 6 are linked together to move downwards and slowly, due to the uneven pollutants 5 on the burning board 4, the pollutants are protruded on the surface of the burning board body at the position with the pollutants, so that the probe can be contacted and jacked up firstly, and the linked switch can generate switch state change firstly; the position of the burning board without pollution is low, and the probe is contacted and jacked slowly; as the pollutants on the burning board are distributed sporadically and have small relative area, in the process that a plurality of probes simultaneously downwards probe at a row of positions, at least one probe is not contacted with the pollutants and directly contacted with the body of the burning board with lower height, then, when all the ganged switches generate switch state change, namely the lower end points of all the probes (including the last probe) are contacted with the body of the burning board, the control circuit is closed to stop the rotation of the adjusting motor, and at the moment, the grinding surface of the grinding disc is just positioned on the position of the upper surface of the burning board body without the pollutants. Like this, when holding the fever board and being driven by conveying platform and pass through from scrubbing subassembly below, because high protruding, can be immediately by the mill of high-speed rotation to grind into the dust and taken away by air current and air exhauster, and hold the fever board body because highly just equals mill lower grinding face, so can not or very little by the mill wearing and tearing, such design, both guaranteed that the mill can grind the pollutant on holding the fever board fast and effectively, reduced the consumption of mill motor again, save the electric energy, more importantly avoids or greatly reduced and holds fever board main part by wearing and tearing, can prolong the used repeatedly life-span of holding the fever board. The process can be automatically controlled, and is reliable and accurate.

The working flow (i.e. the control process of the control circuit) is as follows: after the power supply is started, the grinding disc motor and the adjusting motor are not electrified to work temporarily, and the conveying motor is electrified to work to drive the roller generating the platform to roll. An operator places a piece of burning board on the conveying platform, and the burning board moves forwards under the driving of the roller. When the burning board moves to the lower part of the probe assembly, the work of the transmission motor is suspended, so that the burning board stops moving below the probe assembly, and meanwhile, the work of the adjusting motor (stepping motor) is started to drive the whole decontamination assembly and the probe assembly to slowly move downwards. When all the linked switches linked with the probes generate switch state change, namely, the lower ends of all the probes contact the burning board, which indicates that the last probe contacts the surface of the burning board body without pollutants, the work of the adjusting motor is immediately closed and motor braking is generated, so that the decontamination assembly and the probe assembly stop at the current position height. At this moment, the operation of the grinding disc motors is started, and each grinding disc motor drives the grinding disc to rotate at a high speed. And restarting the operation of the conveying motor to drive the burning bearing plate to continuously move forwards, and when the burning bearing plate moves to contact the grinding disc, the pollutants protruding on the burning bearing plate are immediately ground into dust by the grinding disc rotating at high speed and are pumped away by the exhaust fan above the decontamination chamber. The whole burning plate passes through the lower part of the grinding disc, continues to move backwards after the pollutants are removed, is conveyed out of the pollution removing chamber and is taken down by an operator.

The process is continuously carried out, if the batch of setter plates with the same thickness specification are adopted, the height of the decontamination assembly can be adjusted once only when the first setter plate enters through the probe assembly in the process, then the probe assembly can be hung through another simple mechanical mechanism, the probe does not contact and detect the setter plates any more, and the subsequent setter plates are continuously decontaminated only according to the result of the first adjustment, so that the efficiency is improved.

Claims

1. The utility model provides a mechanical device for being directed at pottery bears fever board renovates, includes the conveying platform, and the conveying platform is used for placing and holds the fever board and will hold fever board conveying to scrubbing chamber, its characterized in that: the ceramic burning plate is characterized by also comprising a decontamination chamber, wherein the decontamination chamber is used for removing pollutants on the surface of the ceramic burning plate; the decontamination chamber comprises a shell, and an electric decontamination assembly is arranged in the shell; the decontamination assembly is arranged above the conveying platform and comprises a motor mounting frame, a position adjusting mechanism, a grinding disc motor and a grinding disc; the position adjusting mechanism mainly comprises an adjusting motor and a transmission mechanism, wherein the transmission mechanism is connected with the motor mounting frame and is used for adjusting the position of the motor mounting frame in the vertical direction under the driving of the adjusting motor; a group of a plurality of grinding disc motors are downwards arranged on the motor mounting frame, the arrangement direction of the grinding disc motors is vertical to the conveying direction of the conveying platform, and grinding discs are downwards arranged on the grinding disc motors;

a probe assembly is arranged in the decontamination chamber above the conveying platform and in front of the decontamination assembly and is used for detecting the burning board and adjusting the position of the motor mounting frame in the vertical direction through a control circuit;

the probe assembly comprises a probe mounting frame, a probe and a linked switch; a row of a plurality of probes are vertically arranged on the probe mounting rack downwards, and the horizontal arrangement direction of the probes is vertical to the conveying direction of the conveying platform; each probe is elastically connected with the probe mounting frame through a spring and is in linkage connection with one linkage switch; the probe assembly is connected with the decontamination assembly and is linked up and down along with the decontamination assembly; when the probe assembly moves downwards and the lower end of the probe is contacted with the burning board or pollutants on the burning board, the probe is jacked up by overcoming the elastic force of the spring, so that the linked switch linked with the probe generates state change; the linkage switch is connected to the control circuit, and the control circuit is connected with and drives the adjusting motor to work;

the decontamination chamber is also provided with a return air inlet which is connected with a blower for pressurization, an air outlet of the blower is connected with a row of air blowing ports, and the outlet position of each air blowing port is right opposite to the lower part of one grinding disc.

2. A machine for retrofitting a ceramic setter plate as set forth in claim 1, wherein: the conveying platform comprises a conveying motor, a variable speed transmission mechanism and a group of rollers which are arranged in parallel; the variable speed transmission mechanism is connected with the roller, and the roller rolls under the driving of the transmission motor to drive the burning bearing plate placed on the roller to move forwards.