CN118009711B - Kiln and method suitable for firing molded product green body - Google Patents
Kiln and method suitable for firing molded product green body Download PDFInfo
- Publication number
- CN118009711B CN118009711B CN202410419675.3A CN202410419675A CN118009711B CN 118009711 B CN118009711 B CN 118009711B CN 202410419675 A CN202410419675 A CN 202410419675A CN 118009711 B CN118009711 B CN 118009711B
- Authority
- CN
- China
- Prior art keywords
- die
- molded product
- shaping
- section
- kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010304 firing Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007493 shaping process Methods 0.000 claims abstract description 185
- 238000004512 die casting Methods 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 238000000465 moulding Methods 0.000 claims abstract description 21
- 238000010583 slow cooling Methods 0.000 claims abstract description 17
- 238000000137 annealing Methods 0.000 claims abstract description 12
- 238000002425 crystallisation Methods 0.000 claims abstract description 12
- 230000008025 crystallization Effects 0.000 claims abstract description 12
- 238000007639 printing Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 34
- 238000004321 preservation Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 description 104
- 238000004519 manufacturing process Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 241000219146 Gossypium Species 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a kiln and a method suitable for firing molded product blanks, which belong to the technical field of kiln structures, and comprise a kiln body, wherein the kiln body comprises a cooling section to be shaped for carrying out standing slow cooling on molded product blanks after high-temperature crystallization and a post section for annealing cooling, a die-casting shaping section for stamping the molded product blanks is further arranged between the cooling section to be shaped and the post section, at least one stamping device which is arranged in the kiln body of the die-casting shaping section and is used for stamping the molded product blanks is arranged in the die-casting shaping section, and at least one primary shaping female die is further arranged in the die-casting shaping section, wherein each primary shaping female die is provided with a push-pull device; the push-pull device is used for driving an initial shaping female die positioned outside to enter the kiln body of the die-casting shaping section so as to receive a molded product blank sent out by the cooling section to be shaped and then reset; the molded product blank is conveyed to a post section after being printed by a printing device; thereby greatly reducing the time consumption of slow cooling molding of the molded product blank.
Description
Technical Field
The invention relates to the technical field of kiln structures, in particular to a kiln and a method suitable for firing molded product blanks.
Background
At present, the firing of molded products such as glass, ceramic, microcrystalline glass, rock plate or large plate needs to heat the preparation raw materials to about 1100 ℃ so that the solid preparation raw material liquid is crystallized to become a molded product blank with certain plasticity; then, an operator takes out the molded product blank from the firing kiln through a supporting tool (such as a fixed long bar) and puts the molded product blank into a heat preservation furnace, so that the molded product blank gradually sinks to a preset die under the action of gravity for slow cooling molding; and finally, carrying out demoulding operation to obtain a finished product of the molded product. However, the following drawbacks exist in the firing process: 1) The production efficiency is low. In the firing process, the molded product blank gradually sinks and flows into a preset mold to be slowly cooled and molded under the action of gravity, and the slow cooling molding process is long in time consumption and production time due to the slow flow speed; secondly, the molding of the molded product blank is manually assisted, and the industrial mass production requirement cannot be met due to the limitation of human resources; 2) The wall thickness of the molded article produced was uneven. The molded product blank is extremely easy to be influenced by the outside during slow cooling molding, so that the molded product blank is unevenly distributed in a mold, and the wall thickness of the manufactured finished product is uneven everywhere.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a kiln and a method suitable for firing a molded product blank, which are characterized in that the time consumption of slow cooling molding of the molded product blank is reduced and the production time is greatly reduced by arranging a push-pull device and a stamping device; on the other hand, the manual intervention production is reduced, and the production efficiency is greatly improved. Secondly, the mould product blank is subjected to stamping forming through a stamping device, the pressing surface is flat and the pressure is uniform, and the wall thickness of the finished product of the produced mould product is effectively ensured to be reasonable and uniform.
In order to achieve the above-mentioned purpose, the kiln suitable for firing the molded product blank provided by the invention comprises a kiln body, wherein the kiln body comprises a cooling section to be shaped for standing and slow cooling the molded product blank after high-temperature crystallization and a post section for annealing and cooling, a die-casting shaping section for stamping the molded product blank is further arranged between the cooling section to be shaped and the post section, at least one stamping device which is arranged in the kiln body of the die-casting shaping section and is used for stamping the molded product blank is arranged in the die-casting shaping section, and at least one primary shaping die is further arranged in the die-casting shaping section, wherein each primary shaping die is provided with a push-pull device; the push-pull device is used for driving an external primary shaping female die to enter the kiln body of the die-casting shaping section so as to receive a molded product blank sent out by the cooling section to be shaped and reset; the molded article blank is fed to a post-stage after being pressed by a pressing device.
Further, at least one accommodating slideway which is communicated with the interior and the outside of the kiln body and is used for sliding and embedding the push-pull device is arranged on at least one side of the kiln body of the die-casting shaping section.
Further, at least one accommodating slideway which is communicated with the interior and the outside of the kiln body and is used for sliding and embedding the push-pull device is arranged on two sides of the kiln body of the die-casting shaping section.
Further, the heat preservation cotton is filled in the containing slide way in a sealing mode.
Further, the stamping device comprises an upper shaping male die, wherein the upper shaping male die is provided with a driving assembly for driving the upper shaping male die to directionally move along the kiln body.
Further, each of the stamping device and the primary shaping female die is provided with a heat preservation device for heat preservation.
Further, the heat preservation device is a heating rod, and a heating device electrically connected with the heating rod is arranged in the kiln body of the die-casting shaping section.
The invention also provides a method suitable for firing the molded product blank, which is applied to the kiln suitable for firing the molded product blank, and comprises the following steps:
Step S1: mixing at least one solid preparation raw material according to a rated proportion, then carrying out high-temperature crystallization treatment, and conveying the crystallized molded product blank after standing and slow cooling into a die casting shaping section, wherein the crystallized molded product blank has fluidity;
Step S2: pushing one or a plurality of push-pull devices to drive one or a plurality of initial shaping female dies positioned outside to enter the kiln body of the die-casting shaping section so as to receive corresponding molded product blanks sent out by the cooling section to be shaped, wherein the molded product blanks contact the top surface of the initial shaping female dies at the moment and flow and spread under the action of self gravity to be gradually attached to the top surface of the initial shaping female dies; then, pulling back the push-pull device/devices to drive the push-pull devices to reset, wherein the initial-shaping female dies are intermittently fed into the kiln body in batches along with repeated push-pull operation of the step S2;
Step S3: when an initial shaping female die bearing a molded product blank is conveyed to a position below an upper shaping male die, controlling the upper shaping male die to descend to contact and press the molded product blank, wherein the molded product blank is continuously outwards diffused under the clamping action of the upper shaping male die and the initial shaping female die and is tightly pressed in a model empty cavity formed by the upper shaping male die and the initial shaping female die, wherein after the thickness reaches a preset value, the molded product blank is printed and shaped, and controlling the upper shaping male die to ascend and reset;
step S4: sending the molded product blank after the stamping forming and the primary shaping female die to a post section for annealing treatment, so that the molded product blank forms a molded product finished product; and separating the primary shaping female die from the finished product of the molded product after annealing treatment, and sending the primary shaping female die into the kiln body of the die casting shaping section again through the push-pull device in the step S2 to start a new stamping cycle.
Further, in step S3, after reaching the preset thickness, the molding blank is printed and molded, which includes: step S3.1: acquiring and determining an actual thickness value of the molded product blank according to the distance between the molded product blank and the upper shaping male die, the descending speed of the upper shaping male die, the stamping time, the stamping force, the specification and the specification of the primary shaping female die; step S3.2: and dividing a thickness interval in advance, and stopping stamping the upper shaping male die when the actual thickness value belongs to the thickness interval range.
By adopting the scheme, the invention has the beneficial effects that the time consumption of slow cooling molding of the molded product blank can be greatly reduced by arranging the push-pull device and the stamping device, and the kiln continuous water type firing is realized, so that compared with the traditional fixed slow cooling shaping firing mode, the production efficiency of the molded product is greatly improved, the production cost consumed during the slow cooling shaping is reduced, and meanwhile, the wall thickness of the finished molded product is ensured to be reasonable and uniform; the heat loss can be effectively slowed down through setting up closing door, heat preservation cotton, heating rod and heating device, avoids bursting of molded product body because of the local cooling is fast, and instantaneous difference in temperature is big.
Drawings
Fig. 1 is a schematic view of a partial structure of a kiln body according to the present invention.
FIG. 2 is a schematic diagram showing the cooperation of a primary molding die and a molded article blank according to the present invention.
Fig. 3 is a schematic diagram showing the cooperation of the upper shaping male die and the primary shaping female die in the invention.
FIG. 4 is a schematic illustration of the mating of the upper shaping punch, the primary shaping die and the molded article blank in the present invention.
Fig. 5 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a second embodiment of the present invention.
FIG. 7 is a schematic diagram of the cooperation of a molded article blank, a primary-molding die, a heat preservation device and a heating device according to the present invention.
FIG. 8 is a flow chart of a method of the present invention for firing a molded article green body.
Fig. 9 is a detailed flowchart of the molding process after the preset thickness is reached in step S3.
The device comprises a 1-kiln body, a 11-front section, a 12-high temperature crystallization section, a 13-cooling section to be shaped, a 14-die casting shaping section, a 15-rear section, a 2-transmission device, a 3-stamping device, a 31-primary shaping female die, a 32-upper shaping male die, a 4-molded product blank, a 5-closed door, 6-heating equipment, 7-heat preservation devices, 8-heating devices and 9-driving components.
Detailed Description
In order that the invention may be understood more fully, the invention will be described with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 4 and fig. 7, the present embodiment provides a kiln suitable for firing molded articles, wherein the direction indicated by the arrow in fig. 1 is the conveying direction of molded articles 4, the kiln comprises a kiln body 1, specifically, the kiln is a tunnel kiln or a roller kiln, the kiln body 1 is divided into a front section 11 for preheating and heating up according to the difference of heat required by each step of the firing process, a high temperature crystallization section 12 for heating up solid preparation raw materials (such as silicate, microcrystalline glass and the like) to make the solid preparation raw materials liquid crystallized into molded articles 4 with certain plasticity, a cooling to-be-shaped section 13 for standing and slowly cooling the molded articles 4 after the high temperature crystallization, a die casting shaping section 14 for stamping the molded articles 4 and a rear section 15 for annealing and cooling; wherein, each section of the kiln body 1 is distributed with a plurality of transmission devices 2 (such as transmission rollers) for conveying and transporting molded product blanks 4, preparation raw materials and the like; a plurality of heating devices 6 (such as heating guns) for heating the interior of the kiln body 1 are distributed on the front section 11, the high-temperature crystallization section 12, the cooling section 13 to be shaped and the rear section 15; whereby the kiln is able to fire the molded article blank 4.
More specifically, at least one stamping device 3 for stamping and forming the molded product blank 4 is arranged in the kiln body 1 of the die-casting shaping section 14, and at least one primary shaping female die 31 is also arranged in the die-casting shaping section 14; wherein each primary mould 31 is further provided with a push-pull device (not shown in the figures) reciprocally moving between the interior of the kiln body 1 of the die-casting forming section 14 and the outside. In this embodiment, each push-pull device is initially located outside the kiln body 1 of the die-casting shaping section 14 and carries a preliminary shaping female die 31, at least one accommodating slideway (not shown in the figure) which is communicated with the interior and the exterior of the kiln body 1 and can be used for sliding and embedding of the push-pull device is provided on at least one side of the kiln body 1 of the die-casting shaping section 14, and in this embodiment, in order to facilitate the operation of the push-pull device by an operator and improve the production efficiency of the kiln, one/a plurality of accommodating slideways which are communicated with the interior and the exterior of the kiln body 1 and are used for sliding and embedding of the corresponding push-pull device/a plurality of push-pull devices are provided on both sides of the kiln body 1 of the die-casting shaping section 14. The push-pull device/devices are pushed manually or mechanically, the corresponding primary shaping female die/dies 31 are/is sent to a preset receiving station (namely, the outlet of the cooling section to be shaped 13, and the arrangement height of the primary shaping female die 31 is consistent with the height of the outlet of the cooling section to be shaped 13 so as to receive the corresponding molded product blank 4 sent out from the cooling section to be shaped 13) inside the kiln body 1, and then the push-pull device is pulled back, so that the push-pull device is reversely reset to the outer side of the kiln body 1 to start the conveying of the next primary shaping female die 31. At this time, the molded product blank 4 collides with the top surface of the primary shaping female die 31 under the action of self gravity so as to generate partial deformation, namely the primary shaping female die 31 plays a role of pressing the molded product blank 4 relatively; then, driving the corresponding one/a plurality of stamping devices 3 to stamp the molded product blank 4, and after the stamping devices 3 stamp the molded product blank 4, finishing shaping the molded product blank, and sending the molded product blank to a post section 15 for annealing treatment; wherein, the post section 15 separates the primary shaping die 31 from the molded product after annealing treatment, and takes out the molded product, so that the primary shaping die 31 enters the kiln body 1 of the die-casting shaping section 14 again through pushing action of the push-pull device to start a new stamping cycle.
It should be noted that, the push-pull device in this embodiment adopts a kiln car in sealing fit with the side wall of the kiln body 1, but is not limited to this form and can be replaced by a receiving and conveying mechanism derived from the same, and is not limited herein; from this, carry preliminary shaping die 31, the supplementary molded product body 4 design of seal press device 3 through push-pull device can reduce molded product body 4 slow cooling shaping's time and manual intervention by a wide margin, promotes traditional kiln fixed slow cooling design firing mode to the running water mode of firing, has greatly improved production efficiency, has reduced manufacturing cost simultaneously, does benefit to industrial mass production.
In this embodiment, the embossing device 3 comprises an upper shaping punch 32 which cooperates with the primary shaping punch 31 to re-emboss the molded article blank 4; wherein, the primary shaping female die 31 and the upper shaping male die 32 are both in a cuboid shape; the top surface of the primary shaping female die 31 is concavely formed with a groove for receiving the molded product blank 4, the bottom surface of the upper shaping male die 32 is convexly formed with a boss portion for stamping the molded product blank 4, and the specifications of the groove and the boss portion are set according to the requirements of molded product finished products.
Specifically, the upper shaping punch 32 is disposed at a higher level than the initial shaping die 31, and the upper shaping punch 32 is provided with a driving assembly 9 for driving the upper shaping punch 32 to move in a direction along the kiln body 1, that is, the upper shaping punch 32 can be lifted and lowered along the radial direction of the kiln body 1 by the driving action of the driving assembly 9 (it should be noted that the driving assembly 9 in this embodiment is a telescopic cylinder driven in the up-down direction, but is not limited to this form and can be replaced by a phase-derived driving mechanism, and is not limited thereto). More specifically, when the primary shaping female die 31 is located at the lower position of the upper shaping male die 32, the driving component 9 drives the upper shaping male die 32 to descend and contact with the molded product blank 4, at this time, the upper shaping male die 32 and the primary shaping female die 31 are closed to form a model empty cavity for accommodating the molded product blank 4, and the boss part of the upper shaping male die 32 is matched with the groove of the primary shaping female die 31 to press two end faces of the molded product blank 4, so that the molded product blank 4 is printed and molded, and because the pressing surfaces of the upper shaping male die 32 and the primary shaping female die 31 are flat and the pressing force of the upper shaping male die 32 is uniform, the produced molded product is further effectively ensured to have reasonable and uniform wall thickness.
Further, in this embodiment, in order to avoid bursting of the molded product blank 4 caused by rapid local temperature reduction and large instantaneous temperature difference, a plurality of heat insulation cottons are sealed and filled in the accommodating slideway to slow down heat loss in the kiln body 1 when the push-pull device is pulled. In addition, the kiln body 1 can be provided with a sliding sealing embedded closing door 5 at the port of the containing slideway to slow down the heat loss in the kiln body 1. Specifically, referring to the first embodiment shown in fig. 5, a closing door 5 is provided at one side of the kiln body 1, and the direction indicated by the arrow in fig. 5 is the conveying direction of the primary-molding die 31; referring to the second embodiment shown in fig. 6, closing doors 5 are provided on both sides of the kiln body 1, and the direction indicated by the arrow in fig. 6 is the conveying direction of the preliminary molding die 31; therefore, the external initial shaping female dies 31 are sent into the kiln body 1 through the push-pull device by intermittently lifting the closing doors 5 at one side or two sides, so that the probability of external cold air entering the kiln body 1 is reduced, and the influence of the external cold air on the temperature in the kiln body 1 is effectively reduced.
Secondly, each stamping device 3 (namely the upper shaping male die 32) and the primary shaping female die 31 are provided with a heat preservation device 7 for preserving heat so as to maintain the temperature within a certain temperature range, and the explosion of the molded product blank 4 caused by overlarge temperature difference between the upper shaping male die 32 and the primary shaping female die 31 when the upper shaping male die 32 and the molded product blank 4 are contacted is effectively avoided. In this embodiment, heating rods are used as the heat preservation device 7, and each of the upper shaping male die 32 and the preliminary shaping female die 31 is configured with one or a plurality of heating rods (here, the heating rods can be arranged at one side or two sides of the upper shaping male die 32/preliminary shaping female die 31, and can also be arranged in through holes preset at the bottom of the upper shaping male die 32/preliminary shaping female die 31 and extending through along the width direction thereof, and the number, power and positions of the heating rods configured by each of the upper shaping male die 32 and the preliminary shaping female die 31 are set according to actual production needs, and are not limited herein); and one or a plurality of heating devices 8 electrically connected with the corresponding heating rods are arranged in the kiln body 1 at the same height as the heating rods. Specifically, when the primary-shaping die 31 with the molded product blank 4 passes through the heating device 8, the heating rod is in contact with the heating device 8 to be electrified, and the heating rod works at the moment so as to supplement the dissipated heat to maintain the temperature of the primary-shaping die 31 within a certain temperature range. And when the upper shaping punch 32 is in a static state, the upper shaping punch can be contacted with a heating device 8 preset above the inside of the kiln body 1 to be electrified and heated. More specifically, the setting position, setting interval, shape and number of the heating devices 8 in the kiln body 1 should be set according to actual production requirements, so that the heating rods and the heating devices 8 are matched to obtain the optimal temperature control effect, the molded product blank 4 is always in an environment with stable temperature change, and the molded product blank 4 burst caused by too fast local cooling and too large temperature difference is effectively avoided.
In addition, the invention also provides a method suitable for firing a molded product blank, the method is applied to the kiln, and the method is further explained based on the kiln:
Referring to fig. 8, the method comprises the steps of:
Step S1: at least one solid preparation raw material is mixed according to a rated proportion and then subjected to high-temperature crystallization treatment, and the crystallized molded product blank 4 after standing and slow cooling is sent to a die casting shaping section 14, wherein the crystallized molded product blank 4 has fluidity.
In this embodiment, at least one solid preparation raw material (such as silicate, glass ceramics, etc.) is mixed according to a rated proportion in the pre-stage 11 and starts to be heated to a temperature of 1000-1220 ℃ in the high-temperature crystallization stage 12, wherein the heating temperature is determined according to the material quality of each preparation raw material, and is not unique, and becomes a high-temperature crystallized molded product blank 4 with fluidity; then, the molded product blank 4 crystallized at high temperature is flowed into a cooling section 13 to be shaped and is placed still, and is fed into a die-casting shaping section 14 after gradually cooling to 800 ℃.
Step S2: pushing the push-pull device/devices to drive the initial shaping female die/dies 31 outside to enter the kiln body 1 of the die-casting shaping section 14 to receive the corresponding molded product blank 4 sent out by the cooling section 13 to be shaped, wherein the molded product blank 4 contacts the top surface of the initial shaping female die 31 and flows under the action of self gravity to be spread and gradually attached to the top surface of the initial shaping female die 31; then, the push-pull device/devices are pulled back to drive the push-pull devices to reset, wherein the primary-shaped female dies 31 are fed into the kiln body 1 in batches as the push-pull operation of the step S2 is repeated.
In this embodiment, the push-pull device/devices are pushed to drive the initial shaping die/dies 31 located outside into the front end of the interior of the kiln body 1 of the die-casting shaping section 14, so that the top of the initial shaping die 31 receives the corresponding molded product blank 4 sent out from the cooling section 13 to be shaped (at this time, the molded product blank 4 will flow and spread under the action of self gravity and gradually fit with the groove on the top surface of the initial shaping die 31, so that the molded product blank 4 has a slight radian for shaping); then, the molded product blank 4 and the primary shaping female die 31 are conveyed towards the stamping device 3 through the transmission device 2, and simultaneously the push-pull device/devices are pulled back to the outer side of the kiln body 1 to start conveying the primary shaping female die 31 of the next round, so that the primary shaping female die 31 is fed into the kiln body 1 step by step in batches, and the continuous firing of the kiln is realized.
Step S3: when the primary shaping female die 31 bearing the molded product blank 4 is conveyed to a position below the upper shaping male die 32, the upper shaping male die 32 is controlled to be in descending contact with and press the molded product blank 4, at the moment, the molded product blank 4 is continuously outwards diffused under the clamping action of the upper shaping male die 32 and the primary shaping female die 31 and is pressed in a model empty cavity formed by the upper shaping male die 32 and the primary shaping female die 31, wherein after the preset thickness is reached, the molding of the molded product blank 4 is finished (at the moment, the molded product blank 4 has complete radian molding), and the upper shaping male die 32 is controlled to be lifted and reset.
Specifically, referring to fig. 9, after the preset thickness is reached, the molding of the molded article blank 4 may be completed by the steps shown in fig. 9, including steps S3.1 to S3.2:
step S3.1: acquiring and determining an actual thickness value of the molded product blank 4 according to the distance between the molded product blank 4 and the upper shaping male die 32, the descending speed of the upper shaping male die 32, the stamping time, the stamping force, the specification and the specification of the primary shaping female die 31;
step S3.2: the thickness interval is divided in advance, and when the actual thickness value falls within the thickness interval range, the upper shaping punch 32 is stopped from pressing.
In this embodiment, the actual thickness value of the molded product blank 4 can be calculated by obtaining the distance between the molded product blank 4 and the upper shaping punch 32, the falling speed of the upper shaping punch 32, the stamping time, the stamping force, the specification and the specification of the primary shaping die 31, and substituting the deformation characteristic curve formula. It should be noted that, the molded product blank 4 prepared from different preparation raw materials has different deformation characteristics for pressure, so the corresponding deformation characteristic curve formulas are different, and the application of the deformation characteristic curve formulas belongs to conventional technical means, and is not described in detail herein.
Step S4: the molded product blank 4 after the printing and molding is sent to a post section 15 together with a primary shaping female die 31 for annealing treatment, so that the molded product blank 4 forms a molded product; and separating the primary shaping female die 31 from the finished molded product after annealing treatment, taking out the finished molded product, and sending the primary shaping female die 31 into the kiln body 1 of the die-casting shaping section 14 again through the push-pull device in the step S2 to start a new stamping cycle.
In order to facilitate the understanding of the above-mentioned properties of the kiln suitable for firing molded articles blanks, the following is a further explanation in connection with the production of molded articles having a length of 1000mm and a width of 600 mm: the kiln production in the traditional fixed slow cooling shaping firing mode mainly depends on self gravity molding of a molded product blank, and is divided into a heating section and a cooling section, wherein the heating section takes about 360-420 min, the cooling section takes about 60min, the total production time is about 420-480 min, and the maximum daily output of a single kiln is 2; the embodiment adopts a continuous die casting process for production, wherein the time spent by the front section 11 is about 5-10 min, the time spent by the high-temperature crystallization section 12 is about 80-120 min, the temperature of the section is usually controlled within the range of 1000-1220 ℃, the time spent by the cooling section 13 to be shaped is about 5-10 min, the time spent by the die casting shaping section 14 is about 5-10 min, the time spent by the rear section 15 is about 30-90 min, the total production time is about 125-240 min, and the maximum daily output of a single kiln is 240; therefore, the production time of the kiln in the traditional fixed slow cooling shaping firing mode can be compressed from 420-480 min to 125-240 min, the production time is greatly shortened, the production cost is saved, the production efficiency of molded products is greatly improved, and the batch automatic production of the molded products is realized.
The above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention in any way. Any person skilled in the art, using the disclosure above, may make many more possible variations and modifications of the technical solution of the present invention, or make many more modifications of the equivalent embodiments of the present invention without departing from the scope of the technical solution of the present invention. Therefore, all equivalent changes made according to the inventive concept are covered by the protection scope of the invention without departing from the technical scheme of the invention.
Claims (8)
1. Kiln suitable for molded product body firing, including kiln body (1), kiln body (1) are including being used for keeping still cooling to treat shaping section (13) and be used for annealing refrigerated poststage (15) of molded product body (4) after the high temperature crystallization, its characterized in that: a die-casting shaping section (14) for stamping the molded product blank (4) is further arranged between the cooling section (13) to be shaped and the rear section (15), at least one stamping device (3) and at least one primary shaping female die (31) which are arranged in the kiln body (1) of the die-casting shaping section (14) and are used for stamping the molded product blank (4) are arranged in the die-casting shaping section (14), and each primary shaping female die (31) is provided with a push-pull device; the push-pull device is used for driving an initial shaping female die (31) positioned outside to enter the kiln body (1) of the die-casting shaping section (14) so as to receive a molded product blank (4) sent out by the cooling section (13) to be shaped and reset; the molded body (4) is transferred to a rear section (15) after being pressed by a pressing device (3); the stamping device (3) comprises an upper shaping male die (32), wherein the upper shaping male die (32) is provided with a driving assembly (9) for driving the upper shaping male die to directionally move along the kiln body (1).
2. A kiln for firing molded articles according to claim 1, wherein: at least one accommodating slideway which is communicated with the interior and the outside of the kiln body (1) and is used for sliding and embedding of the push-pull device is arranged on at least one side of the kiln body (1) of the die-casting shaping section (14).
3. A kiln for firing molded articles according to claim 2, wherein: at least one accommodating slideway which is communicated with the interior and the outside of the kiln body (1) and is used for sliding and embedding of the push-pull device is arranged on two sides of the kiln body (1) of the die-casting shaping section (14).
4. A kiln for firing molded articles according to claim 2, wherein: the heat preservation cotton is filled in the accommodating slideway in a sealing way.
5. A kiln for firing molded articles according to claim 1, wherein: each stamping device (3) and each primary shaping female die (31) are provided with a heat preservation device (7) for heat preservation.
6. A kiln for firing molded articles as defined in claim 5, wherein: the heat preservation device (7) is a heating rod, and a heating device (8) electrically connected with the heating rod is arranged inside the kiln body (1) of the die-casting shaping section (14).
7. A method for firing a molded article green body, applied to the kiln for firing a molded article green body according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
Step S1: mixing at least one solid preparation raw material according to a rated proportion, performing high-temperature crystallization treatment, and conveying the crystallized molded product blank (4) subjected to standing and slow cooling into a die casting shaping section (14), wherein the crystallized molded product blank (4) has certain fluidity;
step S2: pushing one or a plurality of push-pull devices to drive one or a plurality of initial shaping female dies (31) positioned outside to enter the kiln body (1) of the die-casting shaping section (14) so as to receive corresponding molded product blanks (4) sent out by the cooling section (13) to be shaped, wherein the molded product blanks (4) are contacted with the top surface of the initial shaping female dies (31) and slowly flow and spread under the action of self gravity to be gradually attached to the top surface of the initial shaping female dies (31); then, pulling back the push-pull device/devices to drive the push-pull devices to reset, wherein the primary shaping female dies (31) are fed into the kiln body (1) in batches along with repeated push-pull operation of the step S2;
Step S3: when an initial shaping female die (31) carrying a molded product blank (4) is conveyed to a position below an upper shaping male die (32), controlling the upper shaping male die (32) to descend to contact and press the molded product blank (4), wherein the molded product blank (4) is continuously outwards diffused under the clamping action of the upper shaping male die (32) and the initial shaping female die (31) and is pressed into a model empty cavity formed by the upper shaping male die (32) and the initial shaping female die (31), and after the thickness reaches a preset value, the molding of the molded product blank (4) is finished, and controlling the upper shaping male die (32) to ascend and reset;
Step S4: sending the molded product blank (4) after the printing and molding to a post section (15) together with a primary shaping female die (31) for annealing treatment, so that the molded product blank (4) forms a molded product; and separating the primary shaping female die (31) from the finished product of the molded product after annealing treatment, and then sending the primary shaping female die (31) into the kiln body (1) of the die-casting shaping section (14) again through the push-pull device in the step S2 to start a new stamping cycle.
8. A method for firing a molded article green body as defined in claim 7, wherein: in step S3, after reaching the preset thickness, the molding blank (4) is printed and molded, which includes:
Step S3.1: acquiring and determining an actual thickness value of the molded product blank (4) according to the distance between the molded product blank (4) and the upper shaping male die (32), the descending speed of the upper shaping male die (32), the stamping time, the stamping force, the specification and the specification of the primary shaping female die (31);
Step S3.2: and dividing a thickness interval in advance, and stopping stamping by the upper shaping male die (32) when the actual thickness value belongs to the thickness interval range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410419675.3A CN118009711B (en) | 2024-04-09 | 2024-04-09 | Kiln and method suitable for firing molded product green body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410419675.3A CN118009711B (en) | 2024-04-09 | 2024-04-09 | Kiln and method suitable for firing molded product green body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118009711A CN118009711A (en) | 2024-05-10 |
| CN118009711B true CN118009711B (en) | 2024-06-14 |
Family
ID=90945683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410419675.3A Active CN118009711B (en) | 2024-04-09 | 2024-04-09 | Kiln and method suitable for firing molded product green body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118009711B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773031A (en) * | 2022-04-29 | 2022-07-22 | 广东东唯新材料有限公司 | Ceramic material forming method and ceramic product |
| CN117510045A (en) * | 2023-11-23 | 2024-02-06 | 青岛融合智能科技有限公司 | 3D glass forming and processing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2532080Y (en) * | 2002-01-27 | 2003-01-22 | 屈培元 | Double-section tunnel type foam glass foaming kilm |
| KR101455744B1 (en) * | 2014-07-08 | 2014-11-04 | 주식회사 한빛나노의료기 | Method for manufacturing bio ceramics and Tunnel-type sintering furnace |
-
2024
- 2024-04-09 CN CN202410419675.3A patent/CN118009711B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773031A (en) * | 2022-04-29 | 2022-07-22 | 广东东唯新材料有限公司 | Ceramic material forming method and ceramic product |
| CN117510045A (en) * | 2023-11-23 | 2024-02-06 | 青岛融合智能科技有限公司 | 3D glass forming and processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118009711A (en) | 2024-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107010820B (en) | Curved glass thermal forming equipment and method thereof | |
| CN209849853U (en) | Sheet metal part die-casting forming die | |
| CN106116117B (en) | A kind of two-sided molding press device of glass bull and method | |
| CN113501657B (en) | Hollow glass brick forming process | |
| CN110978463A (en) | Female die forming machine and process flow thereof | |
| CN118009711B (en) | Kiln and method suitable for firing molded product green body | |
| CN107365061B (en) | Cooling molding device with loading/unloading part | |
| CN108943341B (en) | Efficient brick press and method | |
| CN116117967A (en) | Ceramic relief rolling device | |
| CN109896730B (en) | Glass hot bending forming method and device | |
| CN104148643B (en) | Hot-press device for machining magnet | |
| CN206751646U (en) | A kind of feeding mechanism for glass heat bender | |
| CN213260665U (en) | Continuous forming equipment for polytetrafluoroethylene plate | |
| CN205999270U (en) | A kind of two-sided molding press device of glass bull | |
| CN210851283U (en) | Hot pressing cooling design all-in-one | |
| CN115007856A (en) | Powder metallurgy forming jig | |
| CN211226893U (en) | Glass hot bending equipment | |
| CN210011143U (en) | Full-automatic assembly line for processing ceramic blank | |
| CN215969293U (en) | Extrusion device for high-temperature mullite light brick production line | |
| CN217351173U (en) | Hot press for glass cup production | |
| CN214881103U (en) | External pressing device for automobile glass furnace | |
| CN213918792U (en) | Replaceable die assembly for forging refractory bricks | |
| CN219634334U (en) | Contact type heating conveyer belt | |
| CN221272110U (en) | Powder hydraulic forming machine with internal heating mechanism | |
| CN219838095U (en) | Stable hot pressing die of drawing of patterns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |