A multi-layer oven structure

Abstract

The utility model belongs to marble processing field discloses a kind of multilayer oven structure, comprising: drying oven, at least two layers of supporting assembly for supporting marble are arranged in vertical direction inside it, the drying oven is respectively opened with feed inlet and discharge outlet in the both ends of material advancing direction;Heating unit, it is correspondingly set in the above of each layer supporting assembly, for providing heat energy to marble located below it;Wherein, each layer supporting assembly is configured to be able independently to the marble located on it, via the discharge outlet, send out drying oven, by at least two layers of vertically arranged supporting assembly, on the premise that floor area is substantially unchanged, three-dimensional utilization of oven internal space is realized, can accommodate and dry multiple marble boards simultaneously, significantly improve unit area productivity.

Description

Technical Field

[0001] This disclosure pertains to the field of marble processing, specifically relating to a multi-layer drying oven structure. Background Technology

[0002] During marble processing, fine cracks and holes often appear due to natural textures or mechanical processing. These need to be filled and repaired using a glue-filling process to improve its strength, aesthetics, and yield. After glue filling, the marble must be dried and cured to allow the glue to fully harden and reach the desired strength, preventing later deformation, peeling, or discoloration.

[0003] However, the industry mostly uses traditional single-layer ovens or tunnel drying tunnels to dry marble after applying adhesive. The basic working method is to lay the marble slabs flat on a conveyor belt or support and slowly pass them through a heated environment to allow the adhesive to solidify.

[0004] However, the single-layer structure limits the number of slabs that can be processed per unit time, especially in the production of large-volume, multi-specification orders, which becomes a bottleneck in the production process and is difficult to match the high-efficiency and continuous production requirements of modern stone processing. Increasing the length or number of ovens to increase output will result in a lengthy production line layout, occupying a large amount of workshop area, which restricts capacity improvement in the case of limited factory space. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this disclosure is to provide a multi-layer oven structure that solves the technical problems of large floor space and low utilization rate caused by the single-layer horizontal arrangement of marble in the prior art.

[0006] The objective of this disclosure can be achieved through the following technical solutions:

[0007] A multi-layer drying oven structure includes: a drying oven, wherein at least two layers of support components for supporting marble are arranged vertically inside the drying oven, and the drying oven has an inlet and an outlet at both ends of the material travel direction;

[0008] A heating unit is disposed above each of the supporting components and is used to provide heat energy to the marble located below it.

[0009] Each of the supporting components is configured to independently discharge the marble located thereon from the drying chamber via the discharge port.

[0010] In some disclosures, the supporting assembly includes rollers, support rods, and a drive unit. Multiple support rods are arranged equidistantly inside the drying chamber, and the multiple support rods are arranged in parallel. Multiple rollers are fixed to the outer wall of the support rods, and the ends of the support rods are connected to the output end of the drive unit.

[0011] In some disclosures, the rollers are equidistantly arranged on the support rod, and the diameter of the rollers is larger than the diameter of the support rod, and multiple rollers have the same diameter.

[0012] In some disclosures, the support components are arranged in multiple sets in the vertical direction, and the multiple sets of the support components are arranged horizontally.

[0013] In some disclosures, a heat insulation curtain is provided at the feed inlet, and the upper edge of the heat insulation curtain is connected to the discharge outlet.

[0014] In some disclosures, the heat insulation curtain is made of rubber, and the area of ​​the heat insulation curtain is larger than the area of ​​the feed inlet.

[0015] In some disclosures, the heating unit is a spiral-shaped electric heating tube.

[0016] In some disclosures, a sealing plate is provided at the discharge port, and the upper edge of the sealing plate is rotatably connected to the upper edge of the discharge port.

[0017] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0018] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them;

[0019] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0020] Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields.

[0021] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0022] The beneficial effects of this disclosure are:

[0023] 1. By using at least two layers of vertically arranged support components, the internal space of the oven is utilized in a three-dimensional manner without changing the floor area. It can simultaneously accommodate and dry multiple marble slabs, significantly improving the production capacity per unit area.

[0024] 2. By setting up independent support components, inlet / outlet ports, and corresponding heating units for each marble slab, multiple parallel and isolated drying stations are constructed. When multiple marble slabs enter the drying chamber asynchronously, if heat disturbance occurs in a certain layer due to the entry and exit of slabs, its impact is effectively limited to the space of that layer, greatly reducing thermal interference to adjacent layers or other marble slabs that are being dried.

[0025] 3. The independent heating unit can perform directional and localized heating on the single slab directly below. The heating zone of each marble slab is relatively independent, so that when the marble in the drying oven is taken out, the impact on the remaining marble is minimal. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the internal structure of the drying oven according to an embodiment of the present disclosure;

[0028] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this disclosure;

[0029] Figure 3 This is a front view schematic diagram of an embodiment of this disclosure;

[0030] Figure 4 This is a top view schematic diagram of an embodiment of this disclosure;

[0031] Figure 5 This is an embodiment of the present disclosure. Figure 4 Schematic diagram of AA section in the middle;

[0032] Figure 6 This is a schematic diagram of the overall structure of the support component according to an embodiment of the present disclosure.

[0033] In the diagram: 1. Drying oven; 2. Feed inlet; 3. Discharge outlet; 4. Support assembly; 41. Support rod; 42. Drive unit; 43. Roller; 5. Heating unit; 51. Electric heating tube; 21. Heat insulation curtain; 31. Sealing plate. Detailed Implementation

[0034] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0035] Please refer to Figures 1 to 6 A multi-layer drying oven structure includes: a drying oven 1, which has at least two layers of support components 4 for supporting marble arranged in the vertical direction inside; and the drying oven 1 has an inlet 2 and an outlet 3 at both ends of the material travel direction.

[0036] Heating unit 5 is disposed above each layer of support component 4 to provide heat energy to the marble located below it;

[0037] Each layer of support assembly 4 is configured to independently discharge the marble located on it out of the drying chamber 1 through the discharge port 3.

[0038] The conveying device is located on both sides of the drying box 1. Marble enters the drying box 1 through the feed inlet 2, and at this time the marble is parallel to the supporting surface of the supporting component 4. Then the marble is sent into the drying box 1, where each layer of supporting component 4 supports marble individually.

[0039] Each layer of support component 4 is set independently, and each layer of support component 4 has an independent inlet 2 and outlet 3 on both sides. Each layer of support component 4 has a heating unit 5 corresponding to the support component 4 on its top.

[0040] When the marble enters the drying chamber 1, the heating unit 5 above it heats the upper surface of the marble individually.

[0041] Please refer to Figures 1 to 6 The supporting component 4 includes rollers 43, support rods 41 and drive unit 42. Multiple support rods 41 are arranged at equal intervals inside the drying box 1 and are arranged in parallel. Multiple rollers 43 are fixed on the outer wall of the support rods 41 and the end of the support rods 41 is connected to the output end of the drive unit 42.

[0042] In use, multiple support rods 41 and rollers 43 together form a support surface. When the drive unit 42 drives the support rods 41 to rotate around their own axis, it drives the rollers 43 to rotate. The friction between the rollers 43 and the marble supported by them drives the marble to move laterally along the support surface, from the feed inlet 2 of the drying box 1 to the side closer to the discharge outlet 3.

[0043] Please refer to Figure 1 , Figure 5 and Figure 6 Rollers 43 are equidistantly arranged on the support rod 41, and the diameter of rollers 43 is larger than the diameter of support rod 41, and multiple rollers 43 have the same diameter;

[0044] Equivalently spaced rollers 43 of the same diameter form a series of evenly distributed discrete support points on multiple parallel support rods 41. These support points together constitute an approximately continuous and flat virtual support plane, providing evenly distributed support force for large-area, heavy marble slabs, effectively preventing the risk of deformation or breakage of the marble slabs due to local stress concentration or insufficient support;

[0045] Since the diameter of each roller 43 is larger than the diameter of the support rod 41 to which it is located, only the outer circumferential surface of the roller 43 contacts the lower surface of the marble. Compared to the support rod 41 directly contacting the lower end surface of the marble, this reduces the contact area between the load-bearing component and the lower end surface of the marble.

[0046] The drive unit 42 includes a servo motor and a reducer, and one support rod 41 in each layer of the load-bearing assembly is connected to the output shaft of the reducer. The drive unit 42 can also be a single servo motor, which can be directly connected to the support rod 41 to drive the support rod 41 to rotate.

[0047] In some embodiments, multiple support rods 41 can be connected by a transmission belt. When one of the support rods 41 rotates, the transmission belt drives multiple support rods 41 to rotate synchronously. When the marble enters the drying chamber 1, the drive unit 42 drives multiple support rods 41 and rollers 43 to rotate, so that the support assembly 4 in the drying chamber 1 can move the marble along a longer path.

[0048] Please refer to Figure 5 The support component 4 is provided in multiple sets in the vertical direction, and the multiple sets of support components 4 are arranged horizontally.

[0049] Under the premise that the factory floor area (floor space) remains basically unchanged or increases only slightly, by making full use of the vertical space, it is beneficial to reduce the floor area of ​​drying oven 1 when heating multiple sets of marble at the same time.

[0050] The horizontally positioned support component 4 provides a stable and flat support surface for each marble slab, reducing the risk of deformation and slippage of the heavy marble slabs during the drying process.

[0051] Please refer to Figure 2 , Figure 3 and Figure 5 A heat insulation curtain 21 is provided at the feed inlet 2, and the upper edge of the heat insulation curtain 21 is connected to the discharge outlet 3.

[0052] Please refer to Figure 5 The heat insulation curtain 21 is made of rubber, and the area of ​​the heat insulation curtain 21 is larger than the area of ​​the feed inlet 2.

[0053] The upper edge of the heat insulation curtain 21 is fixedly connected to the upper end of the feed inlet 2. The heat insulation curtain 21 is made of flexible high-temperature resistant material. When marble is fed into the feed inlet 2, the heat insulation curtain 21 deforms due to its good deformation ability. The feed inlet 2 is open. After the marble enters the drying chamber 1, the heat insulation curtain 21 is reset by gravity and its own elastic recovery force and covers the end face of the feed inlet 2 again to reduce the obstruction of the heat insulation curtain 21 when the marble enters. It can also cover the feed inlet 2 again after the marble leaves the feed inlet 2 to reduce the heat exchange between the inside and outside of the drying chamber 1.

[0054] The lower end and side edges of the heat insulation curtain 21 are not connected to the feed inlet 2. When the heat insulation curtain 21 is made of rigid material, the upper edge of the heat insulation curtain 21 is rotatably connected to the upper end of the feed inlet 2. When the marble is about to pass through the feed inlet 2, the heat insulation curtain 21 is flipped upward to prevent the heat insulation curtain 21 from obstructing the marble from entering. After the marble enters, the heat insulation curtain 21 is rotated to cover the feed inlet 2 and form a shield for the feed inlet 2.

[0055] Please refer to Figure 1 The heating unit 5 is a spiral-shaped electric heating tube 51.

[0056] In use, since each layer of support component 4 is set up independently, when multiple marbles enter the drying chamber 1 at different times, because the marbles are arranged horizontally, if the heating unit 5 uses warm air heating, the sudden insertion of marbles will obstruct the air flow in the drying chamber 1. Therefore, it is easy for marbles at different positions to enter the drying chamber 1 and interfere with the heat distribution in the drying chamber 1. However, heating is carried out by electric heating tube 51. Electric heating tube 51 mainly relies on thermal radiation and local heat conduction for heating. Its effective heating area is concentrated in the space directly below the electric heating tube 51 (i.e., the area of ​​the corresponding support component 4), forming a directional and localized heat field. The entry and exit of marbles at other heights, especially the entry of cold marbles, mainly affect the local radiation absorption of the layer where they are located. This can be quickly compensated by the independent temperature control system of that layer, and will not become a source of disturbance to the thermal balance of the entire system. Therefore, when marble slabs corresponding to different support components 4 can enter and exit the drying chamber 1 independently, heating by electric heating tube 51 can reduce the impact of marbles entering and leaving the drying chamber 1 on the other marbles that are being heated.

[0057] Furthermore, the spiral arrangement of the heating tubes 51 can increase the uniformity of the temperature around the heating tubes 51.

[0058] Please refer to Figure 5 A sealing plate 31 is provided at the discharge port 3, and the upper edge of the sealing plate 31 is rotatably connected to the upper edge of the discharge port 3.

[0059] When the marble is about to leave the drying chamber 1, it moves along the upper surface of the support surface towards the side near the discharge port 3. The side wall of the marble in the forward direction contacts the side of the sealing plate 31 near the inside of the drying chamber 1, and pushes the sealing plate 31 outward during the movement of the marble. This causes the rotating shaft connected to the discharge port 31 to rotate outward around the center. After the marble is completely removed from the drying chamber 1, the sealing plate 31 automatically rotates downward under the influence of gravity until it fits against the side wall of the drying chamber 1, thereby automatically opening and closing the sealing plate 31.

[0060] The discharge port 3 is sealed by an "on-demand" mechanism. It is only opened by a marble slab to form a temporary channel when the slab needs to be discharged; once the slab passes through, it immediately and automatically resets under gravity, sealing the discharge port 3. This process minimizes the escape of hot air from the drying chamber 1 to the outside and the intrusion of cold air from the outside, significantly reducing the amount of heat energy required to maintain the set temperature inside the chamber, thus contributing to energy conservation.

[0061] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A multi-layer drying oven structure, characterized in that, include: The drying box (1) has at least two layers of support components (4) for supporting marble arranged in the vertical direction inside. The drying box (1) has an inlet (2) and an outlet (3) at both ends of the material travel direction. Heating unit (5) is disposed above each layer of the supporting component (4) for providing heat energy to the marble located below it; Each of the supporting components (4) is configured to independently deliver the marble located thereon out of the drying chamber (1) via the discharge port (3).

2. The multi-layer oven structure according to claim 1, characterized in that, The supporting assembly (4) includes rollers (43), support rods (41) and a drive unit (42). Multiple support rods (41) are arranged at equal intervals inside the drying box (1) and are arranged in parallel. Multiple rollers (43) are fixed on the outer wall of the support rods (41). The end of the support rods (41) is connected to the output end of the drive unit (42).

3. The multi-layer oven structure according to claim 2, characterized in that, The rollers (43) are equidistantly arranged on the support rod (41), and the diameter of the rollers (43) is larger than the diameter of the support rod (41), and multiple rollers (43) have the same diameter.

4. The multi-layer drying oven structure according to claim 3, characterized in that, The supporting components (4) are arranged in multiple sets in the vertical direction, and the multiple sets of supporting components (4) are arranged horizontally.

5. The multi-layer oven structure according to claim 1, characterized in that, A heat insulation curtain (21) is provided at the feed inlet (2), and the upper edge of the heat insulation curtain (21) is connected to the discharge outlet (3).

6. The multi-layer oven structure according to claim 5, characterized in that, The heat insulation curtain (21) is made of rubber, and the area of ​​the heat insulation curtain (21) is larger than the area of ​​the feed inlet (2).

7. A multi-layer drying oven structure according to claim 6, characterized in that, The heating unit (5) is a spiral electric heating tube (51).

8. The multi-layer oven structure according to claim 1, characterized in that, A sealing plate (31) is provided at the discharge port (3), and the upper edge of the sealing plate (31) is rotatably connected to the upper edge of the discharge port (3).

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