An enamel dispensing device, an enamel spraying module and an enamel spraying equipment

Abstract

The application discloses an enamel dispensing device, an enamel spraying module and an enamel spraying equipment. The enamel dispensing device comprises a main body, at least one conveying channel for conveying enamel is defined in the main body, and the conveying channel extends transversely. A plurality of mounting portions and a plurality of cavities are arranged on the upper side of the conveying channel, the cavities are communicated with the conveying channel and store gas in the cavities, and the cavities are configured to store and release pressure energy of the enamel. A plurality of spray holes communicated with the conveying channel are arranged on the lower side of the conveying channel, the plurality of mounting portions are respectively corresponded to the plurality of spray holes, the mounting portions are used for mounting valves, and the valves control opening or closing of the spray holes. The cavities weaken pressure fluctuation in the enamel printing process, thereby improving the enamel spraying effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glaze spraying equipment, in particular to a glaze distribution device, a glaze spraying module and a glaze spraying equipment. BACKGROUND

[0002] Glaze spraying method refers to a method of spraying glaze evenly on the surface of ceramic products by using glaze spraying equipment. One of the glaze spraying equipment in the prior art comprises a glaze spraying module, the glaze spraying module comprises a glaze distribution device and a valve arranged on the glaze distribution device, the glaze distribution device has a glaze inlet, a glaze conveying channel and a glaze outlet, a plurality of spray holes for spraying glaze are arranged on the glaze conveying channel, and a plurality of valves correspond to a plurality of spray holes. When working, the glaze flows into the glaze conveying channel from the glaze inlet and then flows out from the glaze outlet, at this time, the opening and closing of the spray holes are controlled by the valves to control the glaze spraying effect. Specifically, when the valve blocks the spray hole, the spray hole does not spray glaze. When the valve opens the spray hole to spray glaze.

[0003] As can be seen from the above, when the glaze spraying module prints, the pressurized glaze passes through the glaze conveying channel, due to the mutual interference of parts and other reasons, for example, the sealing element (tubular) expands or shrinks with the movement of the valve core, the volume changes, which causes the pressure of the glaze to fluctuate, if the pressure cannot be kept within a stable range, the glaze spraying effect will be affected. SUMMARY

[0004] In order to solve the technical problem that the glaze conveying channel in the glaze spraying module in the prior art is pressurized, the pressure of the glaze fluctuates, and if the pressure cannot be kept within a stable range, the glaze spraying effect will be affected, the present application provides a glaze distribution device, a glaze spraying module and a glaze spraying equipment.

[0005] In order to solve the above technical problem, on the one hand, the present application provides a glaze distribution device, comprising a main body, at least one conveying channel for conveying glaze is defined in the main body, and the conveying channel extends transversely;

[0006] A plurality of mounting parts and a plurality of cavities are arranged on the upper side of the conveying channel, the cavities are communicated to the conveying channel and store gas inside, and the cavities are configured to store and release the pressure energy of the glaze;

[0007] A plurality of spray holes communicated to the conveying channel are arranged on the lower side of the conveying channel, a plurality of mounting parts correspond to a plurality of spray holes respectively, the mounting parts are used for mounting valves, and the valves control the opening or closing of the spray holes.

[0008] In some embodiments, the input channel and the output channel are connected to two ends of the conveying channel respectively, and extend along the lateral direction of the conveying channel; the first guide part is arranged at the connection between the input channel and the conveying channel, and the second guide part is arranged at the connection between the output channel and the conveying channel.

[0009] In some embodiments, the first guide part and the second guide part comprise inner circular arc guide surfaces and outer circular arc guide surfaces.

[0010] In some embodiments, the installation part and the cavity are arranged alternately along the extension direction of the conveying channel.

[0011] In some embodiments, the depth direction of the cavity is perpendicular to the extension direction of the conveying channel.

[0012] The cavity comprises a lower cavity body and an upper cavity body connected to each other, the upper cavity body is located on the side of the cavity away from the conveying channel, and the cross-sectional area of the lower cavity body is greater than that of the upper cavity body.

[0013] In some embodiments, the main body comprises an upper plate body and a lower plate body arranged in a stack.

[0014] A sealing structure is arranged between the upper plate body and the lower plate body.

[0015] The cross section of the main body is a parallelogram, the main body with the parallelogram shape has a first side and a second side adjacent to the first side, a plurality of the spray holes are arranged in multiple rows and multiple columns, the arrangement direction of any row of the spray holes is parallel to the first side, and the arrangement direction of any column of the spray holes is parallel to the second side.

[0016] In another aspect, the embodiments of the present application also provide a glaze spraying module, which comprises a valve and the glaze dispensing device.

[0017] In some embodiments, the valve comprises a valve body, a driving part and a valve core, the driving part is arranged in the valve body, the valve core is connected to the driving part, the valve core has a plugging part, and the driving part drives the valve core to move back and forth to make the plugging part block or open the spray hole.

[0018] In some embodiments, the glaze spraying module further comprises a shell, the shell is arranged on the main body and defines a heat dissipation cavity between the main body and the shell, the bottom of the valve body is embedded in the installation part, and the upper part of the valve body protrudes out of the installation part and is accommodated in the heat dissipation cavity.

[0019] The heat dissipation cavity is further provided with a partition structure, the partition structure comprises a first partition plate and a plurality of second partition plates, the upper side of the longitudinally arranged second partition plate is connected to the first partition plate arranged transversely, and the lower side of the second partition plate is connected to the main body;

[0020] The plurality of valves are arranged in one or more rows, and the first partition plate is located between two adjacent rows of valves; and the first partition plate and the second partition plate divide the heat dissipation cavity into one or more heat dissipation air ducts.

[0021] The shell is provided with an air inlet structure and an air outlet structure, and the air inlet structure and the air outlet structure are connected to two ends of the heat dissipation air duct.

[0022] In another aspect, the embodiment of the present application further provides a glaze spraying device, which comprises a conveying device and the glaze spraying module; the conveying device is used for conveying a workpiece to be sprayed with glaze, and the glaze spraying module is located above the conveying device to spray the workpiece to be sprayed with glaze.

[0023] The glaze dispensing device is provided with a plurality of installation portions and a plurality of cavities on the upper side of the conveying channel, the cavities are communicated with the conveying channel and store gas therein, when the pressure of the glaze is higher than the gas pressure in the cavities, the glaze is pressed into the cavities to compress the gas, when the pressure of the glaze is lower than the gas pressure in the cavities, the gas expands to press the glaze out of the cavities, therefore, the cavities are configured to store and release the pressure energy of the glaze, the cavities weaken the pressure fluctuation in the printing process of the glaze, and thus the glaze spraying effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a first embodiment of a glaze dispensing device of the present application, and is a bottom view;

[0025] Figure 2 is a sectional view along A-A shown in FIG. 1; Figure 1

[0026] Figure 3 is a second embodiment of a glaze spraying module of the present application, and is a structure schematic view;

[0027] Figure 4 is a second embodiment of a glaze spraying module of the present application, and is a perspective view;

[0028] Figure 5 is a structure schematic view after a hidden shell; Figure 4

[0029] Legend of reference signs:

[0030] ​​100, main body; 110, conveying channel; 120, upper plate body; 121, mounting portion; 122, cavity; 1221, lower cavity; 1222, upper cavity; 123, input channel; 124, output channel; 125, first guide portion; 1251, 1261, inner circular arc guide surface; 1252, 1262, outer circular arc guide surface; 126, second guide portion; 130, lower plate body; 131, injection hole; 140, sealing ring; 150, first side; 160, second side; 200, valve; 210, valve body; 220, driving portion; 230, valve core; 240, plugging portion; 250, spring; 300, shell; 310, heat dissipation cavity; 311, heat dissipation air duct; 320, air inlet structure; 330, air outlet structure; 340, first partition plate; 350, second partition plate. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer directions appearing or about to appear in the present application are based on the drawings of the present application, and are not specific limitations of the present application.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, the description involving "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0034] An embodiment of the present application, such as Figures 1 to 3As shown, a glaze dispensing device is provided, which includes a main body 100, and at least one delivery channel 110 defined in the main body 100 for delivering glaze, the delivery channel 110 extending laterally. Specifically, the glaze is a water-based material, which is a liquid fluid with flowability. In addition, the delivery channel 110 can be one or more, and when there are more than one delivery channel 110, they are preferably arranged in the same direction.

[0035] The upper side of the delivery channel 110 is provided with a plurality of mounting portions 121 and a plurality of cavities 122, the cavities 122 being in communication with the delivery channel 110 and storing gas therein. The cavities 122 are configured to store and release the pressure energy of the glaze. When the glaze is delivered along the laterally extending delivery channel 110, the gas with lower density than the glaze floats on the upper side of the delivery channel 110 and is stored in the cavities 122 without being discharged from the delivery channel 110. In contrast, if the cavities 122 are arranged on the lower side of the delivery channel 110, the gas will not be stored in the cavities 122. In more detail, the above-mentioned gas generally refers to air. When the pressure of the glaze is higher than the air pressure in the cavities 122, the glaze is pressed into the cavities 122 to compress the gas, so as to keep the pressure of the glaze and the air pressure in the cavities 122 balanced. When the pressure of the glaze is lower than the air pressure in the cavities 122, the gas expands to press the glaze out of the cavities 122, so as to keep the pressure of the glaze and the air pressure in the cavities 122 balanced. The cavities 122 are used to weaken the pressure fluctuation of the glaze during printing, thereby improving the glazing effect.

[0036] The lower side of the delivery channel 110 is provided with a plurality of spray holes 131 in communication with the delivery channel 110, and the plurality of mounting portions 121 correspond to the plurality of spray holes 131, respectively. The mounting portions 121 are used to mount valves 200, and the valves 200 control the opening or closing of the spray holes 131. Specifically, the mounting portions 121 refer to structures that can mount the valves 200, such as mounting holes, mounting cavities or mounting grooves. Generally, the number of spray holes 131 is multiple, and correspondingly, the number of valves 200 and the mounting portions 121 for mounting the valves 200 is also multiple, so as to realize multi-point glazing, and further realize digital glazing by controlling the working of the plurality of spray holes 131.

[0037] In some embodiments, as Figure 2As shown, two ends of the conveying passage 110 are connected with an input passage 123 and an output passage 124 respectively, and the input passage 123 and the output passage 124 are connected with input and output pipes respectively to supply and recover the glaze to the conveying passage 110. The input passage 123 and the output passage 124 extend laterally along the conveying passage 110, preferably vertically relative to the conveying passage 110. The input passage 123 is provided with a first guide portion 125 at the connection with the conveying passage 110, and the output passage 124 is provided with a second guide portion 126 at the connection with the conveying passage 110. Since the glaze is made by adding solid and / or liquid materials into water, the added materials have the phenomenon of sedimentation during the printing process. The first guide portion 125 and the second guide portion 126 can reduce the flow resistance and prevent sedimentation.

[0038] Preferably, in order to further reduce the flow resistance, as shown in Figure 2 The first guide portion 125 and the second guide portion 126 include inner circular arc guide surfaces 1251, 1261 and outer circular arc guide surfaces 1252, 1262. Specifically, the inner circular arc guide surfaces 1251, 1261 and the outer circular arc guide surfaces 1252, 1262 arcuately transition from the extension directions of the input passage 123 and the output passage 124 to the conveying passage 110 respectively.

[0039] In some embodiments, as shown in Figure 2 The mounting portions 121 and the cavities 122 are alternately arranged along the extension direction of the conveying passage 110, so that each valve 200 mounted on the mounting portion 121 has a cavity 122 on one side thereof for stabilizing the pressure of the glaze, which can ensure that the pressure remains stable when each jet hole 131 sprays the glaze.

[0040] In some embodiments, since the glaze is conveyed along the extension direction of the conveying passage 110, the depth direction of the cavity 122 is perpendicular to the extension direction of the conveying passage 110, which can avoid the glaze from squeezing, flushing or discharging the gas out of the cavity 122 during the flow process. The gas can be stored in the cavity 122. In order to further keep the gas in the cavity 122, as shown in Figure 2 The cavity 122 includes a lower cavity body 1221 and an upper cavity body 1222 connected with each other, and the upper cavity body 1222 is located on the side of the cavity 122 away from the conveying passage 110, and the cross-sectional area of the lower cavity body 1221 is greater than that of the upper cavity body 1222.

[0041] In some embodiments, as shown in Figure 2As shown, the main body 100 comprises an upper plate body 120 and a lower plate body 130 arranged in a stack, and the upper plate body 120 and the lower plate body 130 are preferably fastened and connected by screwing. A sealing structure is arranged between the upper plate body 120 and the lower plate body 130. Specifically, a sealing ring is arranged between the edge of the upper plate body 120 and the edge of the lower plate body 130, so that the conveying channel 110 is sealed in the sealing ring to avoid leakage.

[0042] Based on the above embodiment, it can be known that the mounting portion 121 and the cavity 122 are arranged on the upper plate body 120, and the spray hole 131 is arranged on the lower plate body 130. More specifically, the first groove and the second groove are arranged on the upper plate body 120 and the lower plate body 130 respectively, and the first groove and the second groove enclose the conveying channel 110.

[0043] Further, as shown in the drawings, Figure 1 The cross sections of the upper plate body 120 and the lower plate body 130 are parallelogram, and the cross section of the main body 100 is parallelogram. The parallelogram in the present application refers to a parallelogram whose four angles are not right angles. Generally, when more than one glaze spraying module is integrated, more than one main body 100 is arranged in a straight line to be integrated, and the edges of adjacent two main bodies 100 are attached. The parallelogram main body 100 has a first side 150 and a second side 160 adjacent to the first side 150, that is, the included angle between the first side 150 and the second side 160 is not a right angle, and a plurality of spray holes 131 are arranged in multiple rows and multiple columns. The arrangement direction of any row of spray holes 131 is parallel to the first side 150, and the arrangement direction of any column of spray holes 131 is parallel to the second side 160.

[0044] More specifically, the arrangement direction of the spray hole 131 deviates from the direction of the height H of the parallelogram, the conveying direction of the workpiece to be sprayed with glaze is parallel to the direction of the height H of the parallelogram, and the same column of spray holes 131 is staggered in the conveying direction to enable the same column of spray holes 131 to spray glaze on different positions of the workpiece to be sprayed with glaze.

[0045] Another embodiment of the present application also provides a glaze spraying module, as shown in the drawings, Figure 3 The glaze spraying module comprises a valve 200 and a glaze distribution device. The specific structure of the glaze distribution device is referred to the above embodiment. Since the glaze spraying module adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0046] In some embodiments, as shown in the drawings, Figure 3As shown, valve 200 includes valve body 210, drive unit 220, and valve core 230. Drive unit 220 is located inside valve body 210, and valve core 230 is connected to drive unit 220. Valve core 230 has a sealing part 240. Drive unit 220 drives valve core 230 to reciprocate so that sealing part 240 seals or opens nozzle 131. Preferably, drive unit 220 is an electric drive element, such as a coil. Valve body 210 is also provided with positive and negative terminals for supplying power to coil. When coil is energized, it generates a magnetic field that drives valve core 230, which is made of ferromagnetic material, to move. Valve core 230 driven by coil also requires spring 250 to retract and then extend. Generally, when coil is not energized, spring 250 keeps valve core 230 extended, keeping nozzle 131 closed. Spring 250 is generally located inside valve body 210, with both ends abutting against valve core 230 and the inner wall of valve body 210.

[0047] In some embodiments, such as Figures 3 to 5 As shown, the glazing module also includes a housing 300, which is disposed on the main body 100 and defines a heat dissipation cavity 310 between the two. The bottom of the valve body 210 is embedded in the mounting part 121 and its upper part extends out of the mounting part 121 and is housed in the heat dissipation cavity 310.

[0048] The heat dissipation cavity 310 is also provided with a partition structure, which includes a first partition 340 and several second partitions 350. The upper side of the longitudinally arranged second partitions 350 is connected to the transversely arranged first partitions 340, and the lower side of the second partitions 350 is connected to the main body 100, so as to form a partitioned space in the partition structure. Specifically, the first partition 340 and the second partitions 350 are integrally formed, and a strip groove is provided on the top surface of the main body 100. The lower side of the second partitions 350 is embedded in the strip groove and connected to the main body 100.

[0049] like Figure 5 As shown, multiple valves 200 are configured in one or more rows. Preferably, the multiple valves 200 can be configured in two, three, or four rows, with each row containing at least one valve 200. A first partition 340 is located between two adjacent rows of valves 200. The first partition 340 and the second partition 350 divide the heat dissipation cavity 310 into one or more heat dissipation ducts 311. By concentrating the airflow through the heat dissipation ducts 311 to dissipate heat from a row of valves 200, heat dissipation efficiency can be improved. By efficiently dissipating heat from the valves 200, high temperatures during operation are avoided, which could affect their performance and service life.

[0050] Combination Figure 4 and Figure 5The shell 300 is provided with an air inlet structure 320 and an air outlet structure 330, and the air inlet structure 320 and the air outlet structure 330 are connected to two ends of the heat dissipation air duct 311. The air inlet structure 320 is connected to an air inlet pipeline to input dry cold air into the heat dissipation air duct 311. Optionally, the air inlet structure 320 comprises an air inlet interface. The air outlet structure 330 comprises an air outlet hole. Preferably, one heat dissipation air duct 311 is connected to one air inlet interface and at least one air outlet hole.

[0051] Another embodiment of the present application also provides a glaze spraying device, which comprises a conveying device and a glaze spraying module. The specific structure of the glaze spraying module is referred to the above-mentioned embodiments. Since the glaze spraying device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0052] The conveying device is used for conveying the workpiece to be sprayed with glaze, and the glaze spraying module is located above the conveying device to spray glaze on the workpiece to be sprayed with glaze. The conveying device is preferably a conveying belt. The workpiece to be sprayed with glaze is placed on the surface of the conveying belt and conveyed forward, and when passing through the glaze spraying module, the glaze sprayed from the glaze spraying module is applied to the surface of the workpiece to be sprayed with glaze to complete the glaze spraying process.

[0053] The above-mentioned is the preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. A glaze dispensing device, characterized in that, Includes a body, wherein at least one conveying channel for conveying glaze is defined within the body, the conveying channel extending laterally; The upper side of the conveying channel is provided with several mounting parts and several cavities. The cavities are connected to the conveying channel and store gas inside. The cavities are configured to store and release the pressure energy of the glaze. The lower side of the conveying channel is provided with a plurality of spray holes connected to the conveying channel, and a plurality of mounting parts are respectively corresponding to a plurality of spray holes. The mounting parts are used to install valves, and the valves control the opening or closing of the spray holes. The mounting portion and the cavity are arranged alternately along the extension direction of the conveying channel; The depth direction of the cavity is perpendicular to the extension direction of the conveying channel; The cavity includes a lower cavity and an upper cavity connected together. The upper cavity is located on the side of the cavity away from the conveying channel, and the cross-sectional area of ​​the lower cavity is larger than that of the upper cavity. The main body includes an upper plate and a lower plate that are stacked together; A sealing structure is provided between the upper plate and the lower plate; The cross-section of the main body is a parallelogram. The parallelogram main body has a first side and a second side adjacent to the first side. The multiple nozzles are arranged in multiple rows and columns. The arrangement direction of the nozzles in any row is parallel to the first side, and the arrangement direction of the nozzles in any column is parallel to the second side.

2. The glaze dispensing device as described in claim 1, characterized in that, The two ends of the conveying channel are respectively connected to an input channel and an output channel, and the input channel and the output channel extend laterally along the conveying channel; a first guide is provided at the connection between the input channel and the conveying channel, and a second guide is provided at the connection between the output channel and the conveying channel.

3. The glaze dispensing device as described in claim 2, characterized in that, The first guide portion and the second guide portion include an inner arc guide surface and an outer arc guide surface.

4. A glazing module, characterized in that, It includes valves and glaze dispensing devices as described in any one of claims 1 to 3.

5. The glazing module as described in claim 4, characterized in that, The valve includes a valve body, a drive unit, and a valve core. The drive unit is located in the valve body, and the valve core is connected to the drive unit. The valve core has a blocking part. The drive unit drives the valve core to reciprocate so that the blocking part blocks or opens the spray hole.

6. The glazing module as described in claim 5, characterized in that, It also includes a housing, which is disposed on the main body and defines a heat dissipation cavity between the two, and the bottom of the valve body is embedded in the mounting part and its upper part extends out of the mounting part and is accommodated in the heat dissipation cavity; The heat dissipation cavity is also provided with a partition structure, which includes a first partition and a plurality of second partitions. The upper side of the longitudinally arranged second partition is connected to the transversely arranged first partition, and the lower side of the second partition is connected to the main body. The valves are arranged in one or more rows, with the first partition located between two adjacent rows of valves; the first partition and the second partition divide the heat dissipation cavity into one or more heat dissipation ducts; The outer casing is provided with an air inlet structure and an air outlet structure, which are connected to both ends of the heat dissipation duct.

7. A glazing spraying device, characterized in that, It includes a conveying device and a glazing module as described in any one of claims 4 to 6; the conveying device is used to convey a workpiece to be glazed, and the glazing module is located above the conveying device to glaze the workpiece.

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