Drying device for quartz stone plate production

Abstract

The utility model provides a quartz stone plate production's drying device, including quartz stone plate conveying table and stainless steel module frame body, quartz stone plate conveying table is installed with a plurality of conveying rollers in, this design has solved the original drying device for quartz stone plate production only can carry on the up and down direction's limit, cannot carry out the front and back direction's limit to the quartz plate of conveying, leads to the quartz plate transmission and is easy to have the front and back deviation phenomenon, and the drying fan collection groove opening of this device is bigger, is easy to lead to the air volume overflow, influences the drying effect's problem, the utility model uses modularization drying and orientation limit structure, first can carry out the quartz plate preheating and accurate drying operation, then cooperates the limit wire structure, is convenient for extruding the quartz plate to be shaped at the same time, can also carry out the synchronous orientation to its front and back side, guarantees its will not have the front and back deviation phenomenon.

Description

Technical Field

[0001] This utility model is a drying device for the production of quartz stone slabs, belonging to the field of quartz stone slab drying technology. Background Technology

[0002] Quartz stone slabs (made from quartz sand, resin, pigments, etc. through mixing, pressing, and curing) need to be dried after pressing to remove residual moisture (≤0.1%) and volatile resin components (such as styrene). Otherwise, incomplete evaporation of moisture will cause the slabs to crack later (cracking rate of about 8%), or surface bubbles will be generated due to residual volatile components (defect rate of about 12%).

[0003] Chinese patent CN218489082U discloses a drying device for quartz slab production. By incorporating a threaded rod and a shaping bracket, the shaping bracket, threaded to the threaded rod, can slide up and down along a support frame when the threaded rod is rotated. This allows for adjusting the distance between the extrusion roller and the conveying roller, enabling the extrusion and shaping of quartz slabs of varying thicknesses. This prevents deformation of the quartz slabs due to moisture evaporation. However, this drying device only limits movement in the vertical direction and cannot limit movement in the forward and backward direction, leading to potential shifting during transport. Furthermore, the large opening of the drying fan's air collection trough in this device causes airflow leakage, affecting the drying effect. Therefore, a suitable drying device for quartz slab production is urgently needed to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a drying device for the production of quartz slabs, thereby solving the problems mentioned in the background section. This invention adopts a modular drying and guiding limiting structure, which firstly enables preheating and precise drying of quartz slabs. In addition, with the limiting wire structure, it facilitates the extrusion and shaping of quartz slabs while simultaneously guiding them to their front and rear sides, ensuring that they do not shift forward or backward, making it highly practical.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for quartz stone slab production, comprising a quartz stone slab conveyor table and a stainless steel modular frame. Multiple conveying rollers are installed inside the quartz stone slab conveyor table. Stainless steel metal side plates are fixed to the front and rear ends of the quartz stone slab conveyor table by multiple bolts. A drying fan housing is welded to the left side of the front end of the stainless steel metal side plate. Two drying fans are installed inside the drying fan housing. A bent hollow frame is welded between the upper and lower ends of the drying fan housing. A disc-type heating tube is horizontally installed inside each of the two bent hollow frames. Multiple preheating guide holes are opened through the interior of each of the two bent hollow frames. A hollow preheating conduit is installed at the other end of each of the multiple preheating guide holes. The core frame is welded with conical guide blocks. Multiple slit nozzles are opened through the inner end faces of the two conical guide blocks. The stainless steel module frame is welded to the upper right side of the two stainless steel metal side plates. An electric telescopic rod is installed through the upper end of the stainless steel module frame. The movable end of the electric telescopic rod is fixed with an adjusting inner frame by flanges and bolts. Two shaping rollers are installed in the adjusting inner frame. Deep groove ball bearings are longitudinally embedded at the front and rear ends of the stainless steel module frame. Threaded adjusting rods are welded inside the two deep groove ball bearings. Internal threaded moving plates are threadedly fitted on the outside of the two threaded adjusting rods. Horizontal metal frames are welded to the lower ends of the two internal threaded moving plates. Multiple lateral limiting short rollers are longitudinally installed at the lower ends of the two horizontal metal frames.

[0006] Furthermore, the lower left and right sides of the quartz stone slab conveying platform are both fixed with metal angle steel legs by bolts.

[0007] Furthermore, multiple conveying rollers are synchronously connected by chains, and a servo motor is installed on the left side of the front end of the quartz stone slab conveying table, and the servo motor is coaxially connected to one of the conveying rollers.

[0008] Furthermore, a rigid plastic protective net is installed at the front end of the inside of the drying fan housing, and the rigid plastic protective net is located in front of the two drying fans.

[0009] Furthermore, a PLC control panel is installed on the right end of each of the two bent hollow frames, and the two PLC control panels are respectively connected to the two disc heating tubes via wires.

[0010] Furthermore, two bent guide tubes are welded to the upper ends of both horizontal metal frames, and two cylindrical holes are opened through the front and rear ends of the stainless steel module frame. The other ends of the multiple bent guide tubes slide through the multiple cylindrical holes respectively.

[0011] Furthermore, the plurality of lateral limiting short rollers are divided into two groups, and the two groups of lateral limiting short rollers are respectively located inside the stainless steel module frame at the front and rear.

[0012] The beneficial effects of this utility model are as follows: The drying device for producing quartz slabs of this utility model has a reasonable structure due to the addition of stainless steel metal side plates, drying fan housing, drying fan, bent hollow frame, disc heating tube, preheating guide hole, hollow preheating guide tube, conical guide block and slit nozzle. It adopts a modular drying and guiding limit structure, which can first perform preheating and precise drying of quartz slabs. Then, it adopts a stainless steel modular frame, electric telescopic rod, adjusting inner frame, shaping roller, deep groove ball bearing, threaded adjusting rod, internal thread moving plate, horizontal metal frame, lateral limiting short roller and bent guide tube, which can be used with the limiting guide wire structure to facilitate the extrusion and shaping of quartz slabs, and can also guide them synchronously on the front and back sides to ensure that they do not shift back and forth. It is highly practical. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the drying device for producing quartz stone slabs according to this utility model.

[0015] Figure 2 A schematic diagram of the bent hollow frame structure of the drying device for producing quartz stone slabs according to this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the upper side of the bent hollow frame of the drying device for producing quartz stone slabs according to this utility model.

[0017] Figure 4 A three-dimensional structural diagram of the stainless steel module frame of the drying device for producing quartz stone slabs according to this utility model.

[0018] Figure 5 This is a schematic diagram of the shaping roller structure of the drying device for producing quartz stone slabs according to this utility model.

[0019] Figure 6 This is a schematic diagram of the lateral limiting short roller structure of the drying device for producing quartz stone slabs according to this utility model.

[0020] In the diagram: 1-Metal angle steel support leg, 2-Quartz stone slab conveyor table, 3-Conveying roller, 4-Stainless steel metal side plate, 5-Drying fan housing, 6-Rigid plastic protective net, 7-Drying fan, 8-Bent hollow frame, 9-PLC control panel, 10-Disc heating tube, 11-Preheating guide hole, 12-Hollow preheating guide tube, 13-Conical guide block, 14-Slit nozzle, 15-Stainless steel module frame, 16-Electric telescopic rod, 17-Adjustable inner frame, 18-Shaping roller, 19-Deep groove ball bearing, 20-Threaded adjusting rod, 21-Internal threaded moving plate, 22-Horizontal metal frame, 23-Lateral limiting short roller, 24-Bent guide tube. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-6 This utility model provides a technical solution: a drying device for quartz stone slab production, including a quartz stone slab conveyor table 2 and a stainless steel module frame 15. Multiple conveying rollers 3 are installed inside the quartz stone slab conveyor table 2. Stainless steel metal side plates 4 are fixed to the front and rear ends of the quartz stone slab conveyor table 2 by multiple bolts. A drying fan housing 5 is welded to the left side of the front end of the front stainless steel metal side plate 4. Two drying fans 7 are installed inside the drying fan housing 5. A bent hollow frame 8 is welded to the upper and lower ends of the drying fan housing 5. A disc heating tube 10 is horizontally installed inside each of the two bent hollow frames 8. Multiple preheating guide holes 11 are opened through each of the two bent hollow frames 8. A hollow preheating conduit 12 is installed at the other end of each of the multiple preheating guide holes 11. Conical guide blocks 13 are welded inside each of the two bent hollow frames 8. Multiple slit nozzles 14 are opened through the inner end faces of each of the two conical guide blocks 13. The stainless steel module frame 15 is welded to the upper right side of the two stainless steel metal side plates 4. The upper part of the stainless steel module frame 15 is equipped with an electric telescopic rod 16. The movable end of the electric telescopic rod 16 is fixed with an adjusting inner frame 17 by flanges and bolts. Two shaping rollers 18 are installed in the adjusting inner frame 17. Deep groove ball bearings 19 are longitudinally embedded at both the front and rear ends of the stainless steel module frame 15. Threaded adjusting rods 20 are welded inside the two deep groove ball bearings 19. Internal threaded moving plates 21 are threadedly fitted on the outside of the two threaded adjusting rods 20. Horizontal metal frames 22 are welded to the lower ends of the two internal threaded moving plates 21. Multiple lateral limiting short rollers 23 are longitudinally installed at the lower ends of the two horizontal metal frames 22. This design solves the problem that the original drying device for quartz slab production can only limit the vertical direction and cannot limit the forward and backward direction of the conveyed quartz slab, which leads to forward and backward deviation during the conveying of quartz slab. At the same time, the opening of the air collection trough of the drying fan in this device is large, which easily leads to air leakage and affects the drying effect.

[0023] As the first embodiment of this utility model: the lower left and right sides of the quartz stone slab conveying table 2 are fixed with metal angle steel legs 1 by bolts, and multiple conveying rollers 3 are synchronously connected by chains.

[0024] A servo motor is installed on the left side of the front end of the quartz stone slab conveyor table 2, and the servo motor is coaxially connected to one of the conveyor rollers 3. By adding a servo motor and coaxially connecting it to one of the conveyor rollers 3, when the servo motor drives one of the conveyor rollers 3 to rotate, the other conveyor rollers 3 can be driven to work synchronously through the chain.

[0025] A rigid plastic protective net 6 is installed at the front end of the dryer fan housing 5, positioned in front of the two dryer fans 7. This net prevents the fan blades of the two dryer fans 7 from being directly exposed to the outside environment. A PLC control panel 9 is installed on the right end of each of the two bent hollow frames 8. The two PLC control panels 9 are connected to the two disc heating tubes 10 via wires. This connection allows control of the two disc heating tubes 10 to generate electricity and heat. In this invention, the PLC control panel 9 serves as the user interface for a programmable logic controller (PLC), primarily used for performing logical operations, sequential control, timing, counting, and arithmetic operations. They are typically used in conjunction with a PLC system to control machinery or production processes.

[0026] Two bent guide tubes 24 are welded to the upper ends of each of the two horizontal metal frames 22. Two cylindrical holes are drilled through the front and rear ends of the stainless steel module frame 15. The other ends of the multiple bent guide tubes 24 slide through the cylindrical holes, ensuring that the stainless steel module frame 15 can only move in the forward and backward direction, preventing rotation and tipping. Multiple lateral limiting short rollers 23 are divided into two groups, positioned at the front and rear of the stainless steel module frame 15. These two groups of lateral limiting short rollers guide the conveyed quartz stone slabs, preventing them from shifting forward or backward.

[0027] As a second embodiment of this utility model: First, adjust the two shaping rollers 18 and the two sets of lateral limiting short rollers 23 according to the thickness and width of the quartz stone slab to be dried. First, control the moving end of the electric telescopic rod 16 to move down. The moving end of the electric telescopic rod 16 can drive the adjusting inner frame 17 and the two shaping rollers 18 to move down until the lower end face of the two shaping rollers 18 is at the same horizontal line as the upper end face of the conveyed quartz stone slab. Then, turn the two threaded adjusting rods 20 according to the width of the quartz stone slab. The two threaded adjusting rods 20 rotate in place in the two deep groove ball bearings 19. In this way, the two internal thread moving plates 21 are driven to move towards each other outside the two threaded adjusting rods 20 through the thread principle. During this process, multiple bent guide tubes 24 slide along in multiple cylindrical holes. The two horizontal metal frames 22 are also adjusted to move towards each other until the distance between the two sets of lateral limiting short rollers 23 matches the width of the quartz stone slab.

[0028] As a third embodiment of this utility model: when the quartz stone slab is conveyed to the right on multiple conveying rollers 3, two drying fans 7 are started, and two disc heating tubes 10 are energized and heated through two PLC control panels 9. The two drying fans 7 draw in outside air and send it into the two bent hollow frames 8, where it contacts the two heated disc heating tubes 10 for heat exchange. This forms hot air that is transferred to multiple preheating guide holes 11 and multiple slit nozzles 14. The hot air can preheat the quartz stone slab passing between the two bent hollow frames 8 through the multiple preheating guide holes 11. The hot air sprayed from the multiple slit nozzles 14 covers the upper and lower surfaces of the quartz stone slab as it moves to the right, thus achieving a drying effect.

[0029] Note: All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying device for quartz stone slab production, comprising a quartz stone slab conveyor table (2) and a stainless steel modular frame (15), characterized in that: Multiple conveying rollers (3) are installed inside the quartz stone slab conveying platform (2). Stainless steel metal side plates (4) are fixed to the front and rear ends of the quartz stone slab conveying platform (2) by multiple bolts. A drying fan box (5) is welded to the left side of the front end of the stainless steel metal side plate (4). Two drying fans (7) are installed inside the drying fan box (5). A bent hollow frame (8) is welded to the upper and lower ends of the drying fan box (5). A disc heating tube (10) is horizontally installed inside the two bent hollow frames (8). Multiple preheating guide holes (11) are opened through the two bent hollow frames (8). A hollow preheating guide pipe (12) is installed at the other end of the multiple preheating guide holes (11). A conical guide block (13) is welded inside the two bent hollow frames (8). Multiple narrow openings are opened through the inner end faces of the two conical guide blocks (13). The slit nozzle (14) is welded to the upper right side of the two stainless steel metal side plates (4). The upper part of the stainless steel module frame (15) is equipped with an electric telescopic rod (16). The movable end of the electric telescopic rod (16) is fixed with an adjusting inner frame (17) by a flange and bolts. Two shaping rollers (18) are installed inside the adjusting inner frame (17). Deep groove ball bearings (19) are embedded longitudinally at the front and rear ends of the stainless steel module frame (15). Threaded adjusting rods (20) are welded inside the two deep groove ball bearings (19). Internal threaded moving plates (21) are threadedly sleeved on the outside of the two threaded adjusting rods (20). Horizontal metal frames (22) are welded to the lower ends of the two internal threaded moving plates (21). Multiple lateral limiting short rollers (23) are longitudinally installed at the lower ends of the two horizontal metal frames (22).

2. The drying device for producing quartz stone slabs according to claim 1, characterized in that: The lower left and right sides of the quartz stone slab conveying platform (2) are fixed with metal angle steel legs (1) by bolts.

3. The drying device for producing quartz stone slabs according to claim 1, characterized in that: Multiple conveyor rollers (3) are synchronously connected by chains. A servo motor is installed on the left side of the front end of the quartz stone slab conveyor table (2), and the servo motor is coaxially connected to one of the conveyor rollers (3).

4. The drying device for producing quartz stone slabs according to claim 1, characterized in that: The front end of the drying fan housing (5) is equipped with a rigid plastic protective net (6), and the rigid plastic protective net (6) is located in front of the two drying fans (7).

5. The drying device for producing quartz stone slabs according to claim 1, characterized in that: PLC control panel (9) is installed on the right end of each of the two bent hollow frames (8), and the two PLC control panels (9) are respectively connected to the two disc heating tubes (10) by wires.

6. The drying device for producing quartz stone slabs according to claim 1, characterized in that: Two bent guide tubes (24) are welded to the upper ends of the two horizontal metal frames (22). Two cylindrical holes are opened through the front and rear ends of the stainless steel module frame (15). The other ends of the multiple bent guide tubes (24) slide through the multiple cylindrical holes respectively.

7. The drying device for producing quartz stone slabs according to claim 1, characterized in that: The multiple lateral limiting short rollers (23) are divided into two groups, and the two groups of lateral limiting short rollers (23) are located at the front and rear of the stainless steel module frame (15) respectively.

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