A glaze pouring device

Abstract

The present invention discloses a glazing device, comprising a glazing plate and a glazing mechanism for conveying glaze slurry to the glazing plate; wherein the glazing mechanism comprises a glaze spreading roller and a metering roller and a glaze stop plate for adjusting the glazing amount arranged corresponding to the glazing plate, the glaze stop plate being arranged on both sides of the glaze spreading roller and the metering roller, and a glaze storage pool for buffering the glaze slurry is formed between the metering roller, the glaze spreading roller and the glaze stop plate; the glaze slurry in the glaze storage pool is moved to the glazing plate by adhering to the rotating glaze spreading roller. The present invention has a simple structure, the glaze slurry is not easy to precipitate, and the control accuracy of the glazing amount is high.

Description

Technical Field

[0001] The invention relates to the field of material frames, in particular to a glaze pouring device. Background Art

[0002] The existing glazing technologies are generally bell-shaped glazing technology and linear glazing technology. For the bell-shaped glazing method, the glaze slurry is homogenized and slowly flowed on the bell-shaped surface before being glazed on the brick embryo. However, the glazing edge of the bell-shaped glaze is an arc line (not a straight line), so during the glazing process, the amount of glaze slurry in the middle of the brick embryo is less than that on both sides, resulting in uneven glaze thickness on the brick embryo. In particular, tiles used for inkjet printer processing have high requirements for the flatness of the brick surface (glaze surface). At the same time, the amount of bell-shaped glazing cannot be too small, otherwise the glaze slurry has too low a specific gravity or too low fluidity, which will easily form ripples on the bell-shaped surface, and it is not easy to form a glaze curtain (no viscosity).

[0003] As for the linear glazing technology, since the glazing method it uses is to pressurize the glaze slurry and then spray it through a gap, although this glazing method can glaze the brick embryo more evenly, it is not only easy to clog the glaze nozzle, but also the glaze slurry sprayed by pressure is in a turbulent state, and the impact is large when the glaze is sprayed on the brick embryo surface, which will cause problems such as uneven glaze surface and stripes. At the same time, the gap of the glaze spraying nozzle not only has a direct impact on the amount of glaze spraying, but is also difficult to adjust evenly.

[0004] Moreover, glaze slurry is easy to coagulate, especially glaze slurry in a static state or flowing too slowly is particularly easy to coagulate. Therefore, the existing technology often requires additional stirring devices to alleviate the coagulation problem of the glaze slurry, thereby increasing the structural complexity of the equipment and the subsequent maintenance cost.

[0005] On the other hand, the control precision of the glaze pouring amount of the above two glazing technologies is low. For example, if the control is from the aspect of the glaze slurry output source, the bell-shaped type is to change the glaze pumping amount between the pouring and bell-shaped surface, and the linear type is to change the glaze spraying pressure. Therefore, the existing glaze pouring amount is generally controlled by changing the transport speed (glaze pouring time) of the conveyor belt used to transport the brick embryo according to the actual glaze pouring amount measurement under the stable working state of the glazing equipment. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a glaze pouring device with a simple structure, in which the glaze slurry is not prone to sedimentation and the control accuracy of the glaze pouring amount is high.

[0007] In order to solve the above technical problems, the present invention provides a glazing device, comprising a glazing plate and a glazing mechanism for conveying glaze slurry to the glazing plate;

[0008] The glazing mechanism comprises a glaze spreading roller corresponding to the glaze pouring plate, a metering roller and a glaze stop plate for adjusting the glazing amount, the glaze stop plate is provided on both sides of the glaze spreading roller and the metering roller, and a glaze storage pool for buffering the glaze slurry is formed between the metering roller, the glaze spreading roller and the glaze stop plate;

[0009] The glaze slurry in the glaze storage pool is moved to the glaze pouring plate by adhering to the rotating glaze spreading roller.

[0010] As an improvement of the above scheme, the glaze shower device also includes a glaze slurry container for replenishing glaze slurry into the glaze storage pool, and the glaze slurry container is provided with a lower glaze tube for releasing the glaze slurry, and the lower glaze tube is correspondingly arranged above the glaze storage pool.

[0011] As an improvement of the above solution, the highest point of the glaze spreading roller is higher than the highest point of the metering roller, so that the maximum height of the liquid level in the glaze storage tank is the highest point of the metering roller.

[0012] As an improvement of the above solution, the diameter of the glaze spreading roller is larger than the diameter of the metering roller.

[0013] As an improvement of the above solution, the glaze shower device also includes a glaze storage tank, which is arranged below the glazing mechanism to recover the glaze slurry flowing out of the glaze storage tank.

[0014] As an improvement of the above scheme, the glaze pouring device also includes a glaze return pump, the glaze storage tank is provided with a glaze return port connected to the glaze return pump, and the glaze slurry in the glaze storage tank is transported to the glaze slurry container through the glaze return pump.

[0015] As an improvement of the above solution, the adhesion coefficient of the roller surface of the glaze spreading roller is greater than the adhesion coefficient of the roller surface of the metering roller.

[0016] As an improvement of the above scheme, the lower glaze tube is provided with a glaze outlet gap, the glaze outlet gap is provided with a baffle for changing the glaze outlet amount, the lower glaze tube is installed with a screw for moving the baffle, and one end of the screw is in conflict with the baffle.

[0017] As an improvement of the above solution, an oil storage gap with a preset spacing is reserved between the glaze spreading roller and the metering roller.

[0018] As an improvement of the above solution, the roller surface of the glaze spreading roller is made of rubber, and the roller surface of the metering roller is made of metal.

[0019] The implementation of the present invention has the following beneficial effects:

[0020] The present invention discloses a glazing device, comprising a glazing plate and a glazing mechanism for conveying glaze slurry to the glazing plate; wherein the glazing mechanism comprises a glaze spreading roller arranged corresponding to the glazing plate, a metering roller for adjusting the glazing amount, and a glaze blocking plate.

[0021] Therefore, the setting of the glaze pouring plate can avoid uneven glazing on the bell-shaped arc edge, and the glaze delivery method of adhering to the glaze spreading roller can make the glaze slurry more smoothly transported to the glaze pouring plate, so as to shorten the time for the glaze slurry to be homogenized and stably flow on the glaze pouring plate, so as to avoid the condensation of the glaze slurry. At the same time, since the fluctuation range of the glaze slurry amount adhering to the roller surface of the glaze spreading roller is extremely small, high-precision glaze pouring amount control can be achieved simply by controlling the rotation speed of the glaze spreading roller.

[0022] The glaze retaining plates are provided on both sides of the glaze spreading roller and the metering roller, and a glaze storage pool for caching the glaze slurry is formed between the metering roller, the glaze spreading roller and the glaze retaining plates; since the glaze spreading roller and the metering roller are in a rotating state, the glaze slurry in the glaze storage pool is always in a flowing state, which can ensure that no precipitation occurs in the glaze storage pool, so as to avoid the phenomenon of wire drawing when pouring glaze.

[0023] Moreover, since the liquid surface tension of the glaze slurry is large, the setting of the metering roller can compete with the glaze spreading roller for the glaze slurry to subtly and accurately affect the glaze pouring amount of the glaze spreading roller, thereby realizing the ultra-high precision control of the glaze pouring amount of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the glaze pouring device of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the glaze slurry container of the glaze pouring device of the present invention. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1 The present invention provides a glazing device, comprising a glazing plate 1 and a glazing mechanism for conveying glaze slurry to the glazing plate 1;

[0028] Among them, the glazing mechanism includes a glaze roller 2 arranged corresponding to the glaze plate 1 and a metering roller 3 and a glaze stop plate 4 for adjusting the glazing amount. The glaze stop plate 4 is provided on both sides of the glaze roller 2 and the metering roller 3. A glaze storage pool 5 for buffering glaze slurry is formed between the metering roller 3, the glaze roller 2 and the glaze stop plate 4; the glaze slurry in the glaze storage pool 5 is moved to the glaze plate 4 by adhering to the rotating glaze roller.

[0029] Specifically, the glaze spreading roller 2 and the metering roller 3 are both equipped with motors to control the rotation speeds of the glaze spreading roller 2 and the metering roller 3 respectively. Preferably, the motors are servo motors.

[0030] The glaze shower device also includes a glaze slurry container 6 for replenishing glaze slurry into the glaze storage pool. The glaze slurry container 6 is provided with a lower glaze tube 61 for releasing the glaze slurry. The lower glaze tube 61 is correspondingly arranged above the glaze storage pool 5 to replenish the glaze slurry into the glaze storage pool 5.

[0031] Moreover, the glaze pouring device also includes a glaze storage tank 7 and a glaze return pump. The glaze storage tank 7 is arranged below the glazing mechanism. The glaze storage tank 7 is provided with a glaze return port 71 connected to the glaze return pump. The glaze slurry in the glaze storage tank 7 is transported to the glaze slurry container 6 through the glaze return pump to recover the glaze slurry flowing out of the glaze storage tank 5.

[0032] In order to ensure that the liquid level of the glaze reservoir 5 is lower than the highest point of the glaze roller 2, so as to prevent the glaze slurry overflowing from the glaze reservoir 5 from directly passing over the glaze roller 2 and flowing into the glaze pouring plate 1, thereby seriously affecting the glaze pouring amount, the highest point of the glaze roller 2 is higher than the highest point of the metering roller 3. Since the glaze reservoir 5 is formed by the glaze roller 2, the metering roller 3 and the oil baffle 4, when the glaze reservoir 5 overflows, the glaze slurry will flow out from a lower place, that is, from the metering roller 3, so that the maximum height of the liquid level of the glaze reservoir 5 is the highest point of the metering roller 3.

[0033] Since the glaze slurry is transferred to the glaze pouring plate 1 through the glaze spreading roller 2, in order to avoid the problem of excessive fluctuation of the glaze pouring amount when the glaze pouring amount is regulated by the metering roller 3, the diameter of the glaze spreading roller is larger than the diameter of the metering roller. That is, when the glaze pouring amount needs to be roughly adjusted, it can be adjusted by the glaze spreading roller 2, and when the glaze pouring amount needs to be further finely adjusted, it can be adjusted by the metering roller 3.

[0034] It should be noted that, due to the high viscosity of the glaze slurry itself, the surface tension of the glaze reservoir 5 is large, and therefore, the glazing principle of the glaze roller 2 is equivalent to pulling a layer of glaze slurry from the surface of the glaze reservoir to its own roller surface through the adhesion of its own roller surface to the glaze slurry. Therefore, when the metering roller 3 and the glaze roller 2 turn in opposite directions, the metering roller 3 will compete with the glaze roller 2 for the glaze slurry, and more finely and stably change the amount of glaze on the roller surface of the glaze roller 2, thereby changing the amount of glaze applied.

[0035] Furthermore, in order to further improve the precision control of the glazing amount, the roller surface adhesion coefficient of the glaze roller 2 is greater than the roller surface adhesion coefficient of the metering roller 3. When the roller surface adhesion coefficient of the metering roller 3 is lower than that of the glaze roller 2, at the same line speed, the glaze roller 2's ability to compete for the glaze slurry will be greater than that of the metering roller 3. Therefore, the smaller the roller surface adhesion coefficient of the metering roller 3, the smaller the influence of the metering roller 3 on the glazing amount of the glaze roller 2. That is, at the same line speed, the smaller the adhesion coefficient of the metering roller 3 is compared with the adhesion coefficient of the glaze roller 2, the metering roller 3 can more finely change the glazing amount of the glaze roller 2.

[0036] Preferably, the roller surface of the glaze roller 2 is made of rubber, and the roller surface of the metering roller 3 is made of metal. More preferably, the roller surface of the metering roller 3 is a smooth steel surface. The glaze roller 2 and the metering roller 3 are respectively made of materials of different hardness. When the glaze roller 2 and the metering roller 3 are in contact operation, the wear between the two can be reduced, so as to extend the effective working life of the glaze roller 2.

[0037] The amount of glaze stored in the glaze reservoir 5 will affect the amount of glaze applied by the glaze roller 2 to a certain extent under the requirement of ultra-high precision, such as when the glaze reservoir 5 is in an overflow state or not in an overflow state.

[0038] See also Figure 2 In order to conveniently change the glaze discharge amount of the lower glaze tube 61, the lower glaze tube 61 is provided with a glaze discharge gap, that is, the glaze discharge gap is in the shape of a strip hole, a baffle 62 for changing the glaze discharge amount is provided in the glaze discharge gap, and a screw 63 for moving the baffle is installed on the lower glaze tube, one end of the baffle 62 is connected to the inner wall of the glaze discharge gap, and the other end is in conflict with one end of the screw 63, and the other end of the screw 63 passes through the lower glaze tube 61 and is equipped with a knob. Therefore, the inclination angle of the baffle 62 can be changed by rotating the screw 63, thereby changing the actual glaze discharge width of the glaze discharge gap.

[0039] At the same time, in order to further improve the effective working life of the glaze spreading roller 2, an oil storage gap with a preset spacing is reserved between the glaze spreading roller 2 and the metering roller 3, and the width of the glaze storage gap is less than 1 mm.

[0040] Preferably, the glaze plate 1 is an arc-shaped plate with a smooth roller surface.

[0041] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A glaze pouring device, characterized in that: It comprises a glaze pouring plate and a glazing mechanism for conveying glaze slurry to the glaze pouring plate; The glazing mechanism comprises a glaze spreading roller corresponding to the glaze pouring plate, a metering roller and a glaze stop plate for adjusting the glazing amount, the glaze stop plate is provided on both sides of the glaze spreading roller and the metering roller, and a glaze storage pool for buffering the glaze slurry is formed between the metering roller, the glaze spreading roller and the glaze stop plate; The glaze slurry in the glaze storage pool is moved to the glaze pouring plate by adhering to the rotating glaze spreading roller; The diameter of the glaze spreading roller is greater than the diameter of the metering roller; The adhesion coefficient of the roller surface of the glaze spreading roller is greater than the adhesion coefficient of the roller surface of the metering roller.

2. The glaze shower device according to claim 1, characterized in that: The glaze shower device also includes a glaze slurry container for replenishing glaze slurry into the glaze storage pool. The glaze slurry container is provided with a lower glaze tube for releasing the glaze slurry. The lower glaze tube is correspondingly arranged above the glaze storage pool.

3. The glaze shower device according to claim 1, characterized in that: The highest point of the glaze spreading roller is higher than the highest point of the metering roller, so that the maximum height of the liquid level in the glaze storage tank is the highest point of the metering roller.

4. The glaze shower device according to claim 2, characterized in that: The glaze shower device also includes a glaze storage tank, which is correspondingly arranged below the glazing mechanism to recover the glaze slurry flowing out of the glaze storage tank.

5. The glaze shower device according to claim 4, characterized in that: The glaze pouring device also includes a glaze return pump, the glaze storage tank is provided with a glaze return port communicated with the glaze return pump, and the glaze slurry in the glaze storage tank is transported to the glaze slurry container through the glaze return pump.

6. The glaze shower device according to claim 2, characterized in that: The lower glaze tube is provided with a glaze outlet gap, and a baffle for changing the glaze outlet amount is provided in the glaze outlet gap. The lower glaze tube is installed with a screw for moving the baffle, and one end of the screw is in conflict with the baffle.

7. The glaze shower device according to claim 1, characterized in that: An oil storage gap with a preset spacing is reserved between the glaze spreading roller and the metering roller.

8. The glaze shower device according to claim 1, characterized in that: The roller surface of the glaze spreading roller is made of rubber, and the roller surface of the metering roller is made of metal.

Images