A production line for metal colored stone tiles with uniform sand coating

Abstract

The present invention discloses a production line for metal colored stone tiles with uniform sand coating, specifically relating to the field of metal colored stone tile production, comprising a pre-treatment unit, the pre-treatment unit comprising a coil processing mechanism, the output end of the coil processing mechanism being provided with a passivation treatment mechanism, the aluminum-zinc-coated steel strip being processed by the coil processing mechanism to obtain a plurality of substrates, the two sides of the substrate being respectively a sand-planting surface and a back surface, the passivation treatment mechanism being used to perform a secondary passivation treatment on the sand-planting surface of the substrate; the passivation treatment mechanism comprising a mounting frame, a passivation tank being mounted on the mounting frame, a movable seat being mounted on the mounting frame, and a drive assembly being mounted on the movable seat. The present invention provides a filling assembly that is filled and adhered to the back surface of the substrate and pressed tightly, thereby preventing the back surface of the substrate from directly contacting the passivation liquid, preventing the negative pressure suction cup or magnetic suction assembly that is in long-term contact with the passivation liquid from deteriorating, ensuring its adsorption force, and preventing the substrate from easily falling into the passivation tank due to reduced adsorption force of the adsorption mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of metal colored stone tile production, and more particularly to a production line of metal colored stone tiles with uniform sand coating. Background Art

[0002] Metal colored stone tiles (colored stone metal tiles) are a new type of high-end roofing material. They use aluminum-zinc-coated steel sheets with excellent corrosion resistance as the substrate. The first layer of adhesive is coated on the outer surface of the substrate, and the second layer of colored stone sand particles is covered on the outer surface of the substrate. The outermost layer of the substrate is then sprayed with a protective layer. The production process combines metal processing, polymer bonding and surface treatment technology. The core is to achieve a lasting bond between the metal substrate and the colored sand layer. In order to reduce weight and facilitate roof installation, metal colored stone tiles are usually sanded on one side.

[0003] In the existing technology, the production process of colored stone metal tiles mainly includes: substrate pretreatment, adhesive coating, colored sand layer planting and surface protective film covering. Among them, the substrate pretreatment is to cut the aluminum-zinc-coated steel strip into aluminum-zinc-coated steel plates, and press the aluminum-zinc-coated steel plates into a wavy substrate through a stamping die.

[0004] Since the substrate is formed by stamping, the original passivation film on its surface is damaged due to stamping deformation. The damage to the original passivation film reduces the interfacial bonding strength of the substrate, especially the sand-planting surface of the substrate. When applying adhesive on the sand-planting surface of the substrate, it is easy for the adhesive to detach at a certain place due to the reduced interfacial bonding strength. During the subsequent sand covering, it is difficult to bond the colored sand material at that place, forming a "bald spot" on the sand-planting surface of the substrate, resulting in the problem of uneven sand covering on the sand-planting surface of the substrate.

[0005] Therefore, the existing technology ensures the interfacial bonding strength of the substrate by performing a secondary passivation treatment on the substrate. In order to save the cost of using passivation liquid and cleaning agent, only the sand-planting surface of the substrate needs to be passivated, and the other side, that is, the back side, does not need passivation treatment. Since the substrate has a wavy structure, if a mechanical clamp or other similar clamping mechanism is used to clamp the substrate from the back, it is difficult to adapt to the arc shape of the back side of the substrate, and it is easy to change the shape of the back side of the substrate. When such a clamping mechanism is used to clamp the edge of the substrate, the clamping point will block the passivation surface, resulting in local non-passivation of the sand-planting surface of the substrate. Therefore, it is more suitable to use an adsorption mechanism to fix the back side of the substrate. The adsorption mechanism can use components such as negative pressure suction cups or magnetic suction.

[0006] When an adsorption mechanism is used to fix the substrate, and the back of the substrate faces upward and the sand-planted surface of the substrate faces downward to contact the liquid surface of the passivation tank, the passivation liquid enters the inside of the wave trough on the back side due to the wavy structure of the substrate. When the adsorption mechanism subsequently drives the substrate to move, the passivation liquid inside the wave trough on the back side of the substrate contacts the suction point of the adsorption mechanism. The negative pressure suction cup or magnetic suction component that has been in contact with the passivation liquid for a long time will deteriorate and reduce its adsorption force. Since the secondary passivation time of the substrate is within the range of 1 to 2 minutes, the reduced adsorption force of the adsorption mechanism can easily cause the substrate to fall into the passivation tank, which will not only cause the substrate to be over-passivated and scrapped, but also affect the mechanism in the passivation tank. Summary of the Invention

[0007] The present invention provides a production line for metal colored stone tiles with uniform sand coating, and aims to solve the problem that in the prior art, a substrate is fixed by an adsorption mechanism for secondary passivation treatment, and the passivation liquid enters the interior of the wave valley on the back side and contacts the adsorption points of the adsorption mechanism, causing the adsorption mechanism to deteriorate and reduce the adsorption force, resulting in the substrate falling during passivation.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production line for metal colored stone tiles with uniform sand coating, comprising a pretreatment unit, the pretreatment unit comprising a coil processing mechanism, a passivation treatment mechanism being provided at the output end of the coil processing mechanism, and the aluminum-zinc-coated steel strip is processed by the coil processing mechanism to obtain several groups of substrates, the two sides of the substrate being a sand-planting surface and a back side respectively, and the passivation treatment mechanism being used to perform secondary passivation treatment on the sand-planting surface of the substrate; the passivation treatment mechanism comprising a mounting frame, a passivation tank being mounted on the mounting frame, a movable seat being mounted on the mounting frame, a drive assembly being mounted on the movable seat, a mounting shaft being mounted at the output end of the drive assembly, and an adsorption mechanism being mounted on the mounting shaft; the adsorption mechanism comprising a suction cup assembly, and the suction cup assembly is fixed to the back wave peak of the substrate by adsorption, filling assemblies are provided on both sides of the suction cup assembly, and several groups of filling assemblies are arranged corresponding to the back wave valley and the joint of the substrate.

[0009] In a preferred embodiment, the filling assembly includes a first filling block, and the first filling block is in contact with the trough on the back side of the substrate. A second filling block is provided on the side of the suction cup assembly away from the first filling block, and the second filling block is in contact with the joint of the substrate. A clamping assembly is installed on both the first filling block and the second filling block, and one end of the clamping assembly is connected to the mounting shaft.

[0010] In a preferred embodiment, the coil processing mechanism includes a unwinding assembly, the output end of the unwinding assembly is provided with a cutting and pressing assembly, the output end of the cutting and pressing assembly is provided with a discharge port, the unwinding assembly is used to unwind the aluminum-zinc coated steel strip and convey it to the cutting and pressing assembly, and the aluminum-zinc coated steel strip is profiled and cut by the cutting and pressing assembly.

[0011] In a preferred embodiment, the drive assembly includes a Z-axis drive, the output end of the Z-axis drive is connected to the movable seat, the movable seat is equipped with an X-axis drive, the output end of the X-axis drive is equipped with a Y-axis drive, the output end of the Y-axis drive is equipped with a mounting plate, and the mounting shaft is detachably mounted on the mounting plate.

[0012] In a preferred embodiment, a material box is installed on the movable seat, and the material box is used to place several groups of substrates. A negative pressure component is installed on the movable seat, and an air pipe is connected between the negative pressure component and the mounting shaft. Several groups of suction cup components are arranged axially along the mounting shaft, and the mounting shaft and the suction cup components are connected to suck the substrates inside the material box through the suction cup components.

[0013] In a preferred embodiment, a clean water tank and a drying tank are respectively provided on both sides of the passivation tank, a detergent tank is provided on the side of the clean water tank away from the passivation tank, and the Z-axis drive drives the movable seat to move on the top of the detergent tank, the clean water tank, the passivation tank and the drying tank.

[0014] In a preferred embodiment, a fixed shaft is installed on the first filling block and the second filling block, a driving shaft passes through the interior of the fixed shaft, connecting rods are installed at both ends of the driving shaft, a clamping plate is installed on the connecting rod, a telescopic sleeve is installed on the clamping plate, and an isolation plate is provided between the two sets of fixed shafts. The isolation plate is provided with multiple layers, and the edges of the multiple layers of isolation plates are stepped.

[0015] In a preferred embodiment, a secondary sleeve is provided for sliding inside the telescopic sleeve, a tightening column is provided for sliding inside the secondary sleeve, a primary spring component is fixed between one end of the secondary sleeve and one end inside the telescopic sleeve, and a secondary spring component is fixed between one end of the tightening column and one end inside the secondary sleeve.

[0016] In a preferred embodiment, a brushing mechanism is installed inside the passivation tank, and the output end of the brushing mechanism is in rolling contact with the front wave trough of the substrate. The brushing mechanism includes a driving rod, and a calibration block is provided at the top end of the driving rod, and the calibration block abuts against the front wave peak of the substrate.

[0017] In a preferred embodiment, a linear driver is installed on the driving rod, the output end of the linear driver is connected to an extension plate, a coupling block is installed on the extension plate, a linkage shaft is rotatably connected to the coupling block through a torsion spring, and the end of the linkage shaft away from the coupling block is rotatably connected to a brush cylinder, the axial direction of the brush cylinder coincides with the front wave peak direction of the substrate, a support spring is provided between the extension plate and the coupling block, and a limit block is fixed on the coupling block.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a filling component, fills and fits the back of the substrate and presses it tightly, thereby preventing the back of the substrate from directly contacting the passivation liquid, preventing the negative pressure suction cup or magnetic suction component from being in long-term contact with the passivation liquid from deteriorating, ensuring its adsorption force, and avoiding the substrate from falling into the passivation tank due to the reduction of the adsorption force of the adsorption mechanism.

[0020] The present invention provides an automatically ejected isolation sheet to replace the bottoms of the first and second filling blocks that directly contact the passivation liquid, thereby extending the service life of the first and second filling blocks and ensuring that the bottoms of the first and second filling blocks are tightly attached to the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic three-dimensional diagram of the overall structure of the present invention.

[0022] Figure 2 It is a three-dimensional schematic diagram of the coil processing mechanism of the present invention.

[0023] Figure 3 It is a three-dimensional schematic diagram of the passivation treatment mechanism of the present invention.

[0024] Figure 4 It is a top view schematic diagram of the passivation treatment mechanism of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the movable seat of the present invention.

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the passivation tank of the present invention.

[0027] Figure 7 Schematic diagram of substrate passivation treatment according to the present invention.

[0028] Figure 8 This is a schematic diagram of substrate positioning according to the present invention.

[0029] Figure 9 Schematic diagram of the isolation sheet of the present invention.

[0030] Figure 10 It is a schematic top view of the cross-sectional structure of the telescopic sleeve of the present invention.

[0031] Figure 11 It is a schematic diagram of the coupling block structure of the present invention.

[0032] The accompanying drawings are marked as follows: 1. coil handling mechanism; 11. unwinding assembly; 12. cutting and pressing assembly; 13. material outlet; 2. passivation treatment mechanism; 21. mounting frame; 22. detergent tank; 23. clean water tank; 24. passivation tank; 25. drying tank; 26. movable seat; 261. X-axis drive; 262. Y-axis drive; 263. mounting plate; 264. mounting shaft; 265. material box; 266. air pipe; 27. Z-axis drive; 3. adhesive spraying mechanism; 4. sanding mechanism; 5. upper protective layer mechanism; 6. drying mechanism; 7. transport vehicle; 8. galvanized steel strip; 9. substrate; 100. suction Attached mechanism; 101, suction cup assembly; 102, first filling block; 103, second filling block; 1031, clamping assembly; 104, fixed shaft; 105, driving shaft; 106, connecting rod; 107, clamping plate; 108, telescopic sleeve; 1081, secondary sleeve; 1082, tightening column; 1083, primary spring member; 1084, secondary spring member; 109, isolation plate; 200, brushing mechanism; 201, driving rod; 202, extension plate; 203, calibration block; 204, coupling block; 205, linkage shaft; 206, brush cylinder; 207, support spring; 208, limit block. DETAILED DESCRIPTION

[0033] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Example 1

[0035] Refer to the instruction manual Figures 1 to 8 , a metal colored stone tile production line with uniform sand coating, including a pretreatment unit, the pretreatment unit includes a coil processing mechanism 1, the output end of the coil processing mechanism 1 is provided with a passivation processing mechanism 2, the aluminum-zinc-coated steel strip 8 is processed by the coil processing mechanism 1 to obtain several groups of substrates 9, the two sides of the substrate 9 are respectively a sand-planting surface and a back surface, the passivation processing mechanism 2 is used to perform secondary passivation processing on the sand-planting surface of the substrate 9; the passivation processing mechanism 2 includes a mounting frame 21, a passivation tank 24 is installed on the mounting frame 21, a movable seat 26 is installed on the mounting frame 21, a driving component is installed on the movable seat 26, a mounting shaft 264 is installed on the output end of the driving component, and an adsorption mechanism 100 is installed on the mounting shaft 264; the adsorption mechanism 100 includes a suction cup assembly 101, and the suction cup assembly 101 is adsorbed and fixed to the back peak of the substrate 9, filling components are provided on both sides of the suction cup assembly 101, and several groups of filling components are arranged corresponding to the back trough and joint of the substrate 9.

[0036] It should be noted that the output end of the passivation treatment mechanism 2 is provided with a spray adhesive mechanism 3, the output end of the spray adhesive mechanism 3 is provided with a sanding mechanism 4, a transport vehicle 7 is movably provided at the spray adhesive mechanism 3, the output end of the sanding mechanism 4 is provided with an upper protective layer mechanism 5, the output end of the upper protective layer mechanism 5 is provided with a drying mechanism 6, the sand-planting surface of the substrate 9 is hereinafter referred to as the front side, and the other side is the back side, the front side of the substrate 9 is provided with a front peak, a front trough and a lower joint, the back side of the substrate 9 is provided with a back peak, a back trough and an upper joint, the upper joint and the lower joint are respectively located at the two ends of the substrate 9, the height of the top of the front trough is higher than the height of the upper joint, and when the two groups of substrates 9 are assembled, the upper joint covers the top of the lower joint, the front trough and the back trough are both arc-shaped, and a liquid level monitoring system is installed at both ends of the mounting shaft 264, specifically a laser liquid level sensor and an AI vision system, to adjust the immersion depth of the substrate 9 in real time.

[0037] Furthermore, the filling assembly includes a first filling block 102, and the first filling block 102 is fitted with the trough on the back side of the substrate 9. A second filling block 103 is provided on the side of the suction cup assembly 101 away from the first filling block 102, and the second filling block 103 is fitted with the joint of the substrate 9. A clamping assembly 1031 is installed on both the first filling block 102 and the second filling block 103, and one end of the clamping assembly 1031 is connected to the mounting shaft 264.

[0038] It should be noted that the pressing assembly 1031 is an elastic sheet or spring column component, and its rebound force is much smaller than the adsorption force of the suction cup assembly 101. The suction cup assembly 101, the first filling block 102, and the second filling block 103 are all detachably mounted on the mounting shaft 264 by screws. The air supply pipe 266 is connected to the negative pressure pump. The suction cup assembly 101 contacts the back wave crest. The suction cup assembly 101 is tightly positioned with the back wave crest through the negative pressure pump and the air supply pipe 266. The bottom surface of the first filling block 102 is curved to adapt to the back wave trough of the substrate 9.

[0039] There are two embodiments of the first filling block 102 and the second filling block 103. In the first embodiment, the length of the first filling block 102 is greater than or equal to the length of the trough on the back side of the substrate 9, and the length of the second filling block 103 is greater than or equal to the length of the joint of the substrate 9. The bottom surface shape of the second filling block 103 is adapted to the shape of the joint of the substrate 9. By completely filling and covering, the passivation liquid is prevented from entering and contacting the back side of the substrate 9.

[0040] Second embodiment: The length of the first filling block 102 is less than the length of the trough on the back side of the substrate 9, and the length of the second filling block 103 is less than the length of the joint of the substrate 9. Both ends of the first filling block 102 and the second filling block 103 are provided with air jets, and the air jets at both ends continuously form an isolation air curtain to prevent the passivation liquid from entering the back side of the substrate 9;

[0041] Since the second embodiment requires an additional air pump, although it can reduce the reverse thrust on the substrate 9 and make the suction cup assembly 101 more stable, considering the cost and implementation difficulty, the first embodiment is adopted below.

[0042] Furthermore, the coil processing mechanism 1 includes a unwinding component 11, and the output end of the unwinding component 11 is provided with a cutting and pressing component 12, and the output end of the cutting and pressing component 12 is provided with a discharge port 13. The unwinding component 11 is used to unwind the aluminum-zinc coated steel strip 8 and convey it to the cutting and pressing component 12, and the aluminum-zinc coated steel strip 8 is pressed and cut by the cutting and pressing component 12.

[0043] It should be noted that the initial state of the galvanized steel strip 8 is a coil with a smooth surface. The unwinding component 11 is mainly composed of an unwinding shaft, a rotary drive and a tension controller, which unwinds the galvanized steel strip 8 into a flat strip. The cutting component 12 includes a stamping die and a cutting tool. The stamping die is used to press the galvanized steel strip 8 into a wavy shape, and the cutting tool cuts the continuous galvanized steel strip 8 into multiple separate substrates 9. The installation position of the stamping die and the cutting tool can be set according to actual production needs. It can be stamped first and then cut, or cut first and then stamped.

[0044] Furthermore, the driving assembly includes a Z-axis driver 27, the output end of the Z-axis driver 27 is connected to the movable seat 26, the movable seat 26 is equipped with an X-axis driver 261, the output end of the X-axis driver 261 is equipped with a Y-axis driver 262, the output end of the Y-axis driver 262 is equipped with a mounting plate 263, and the mounting shaft 264 is detachably mounted on the mounting plate 263.

[0045] It should be noted that the Z-axis drive 27 is used to drive the movable seat 26 to move along the length direction from the cleaning agent pool 22 to the drying pool 25, the X-axis drive 261 is used to drive the Y-axis drive 262 and the mounting plate 263 to move along the width direction, and the Y-axis drive 262 is used to drive the mounting plate 263 to move up and down, so as to facilitate the subsequent passivation process. The Z-axis drive 27, the X-axis drive 261 and the Y-axis drive 262 use linear guides, screw rods or cylinders and are connected to the same intelligent control system, such as a PLC controller. This control technology is familiar to those skilled in the art. The specific steps for controlling the movement of the mounting plate 263 are described below.

[0046] Furthermore, a material box 265 is installed on the movable seat 26, and the material box 265 is used to place several groups of substrates 9. A negative pressure component is installed on the movable seat 26, and an air pipe 266 is connected between the negative pressure component and the mounting shaft 264. Several groups of suction cup components 101 are arranged axially along the mounting shaft 264, and the mounting shaft 264 is connected to the suction cup component 101, and the substrates 9 inside the material box 265 are sucked through the suction cup component 101.

[0047] It should be noted that the material box 265 is a grid box component, and multiple grids are arranged inside the material box 265. A row of substrates 9 can be stacked in each grid, which facilitates the accurate adsorption and fixation of the suction cup assembly 101 and the back peaks of the substrate 9. The negative pressure pump, the air pipe 266, the installation shaft 264 and the suction cup assembly 101 constitute a complete negative pressure adsorption and fixing mechanism. A material tray is installed at the end of the mounting frame 21 away from the detergent pool 22. The material tray is used to hold the substrates 9 after passivation treatment, and facilitates the first filling block 10 and the second filling block 103 to accurately fit the back troughs and joints of the substrate 9 respectively.

[0048] Furthermore, a clean water tank 23 and a drying tank 25 are respectively provided on both sides of the passivation tank 24, and a detergent tank 22 is provided on the side of the clean water tank 23 away from the passivation tank 24. The Z-axis drive 27 drives the movable seat 26 to move on the top of the detergent tank 22, the clean water tank 23, the passivation tank 24 and the drying tank 25.

[0049] It should be noted that the interior of the detergent pool 22 is provided with a cleaning nozzle, which adopts spray-type continuous cleaning, the spray pressure is 0.2-0.4MPa, the spray time is 60-90 seconds, and the detergent adopts an alkaline degreasing liquid (containing NaOH, Na2CO3, surfactant) with a pH of 10-12. The temperature is controlled between 60-70°C. The goal is to remove rolling oil, fingerprints, and dust, and the residual oil stain is ≤50mg / m² (tested by the water film continuous method); the clean water pool 23 is a countercurrent water washing tank, which uses pure water with a conductivity of <50μS / cm, the temperature is room temperature, and the washing time is 20 seconds. The goal is to completely remove alkaline residues and ensure the stability of subsequent passivation; the passivation liquid inside the passivation pool 24 is a silane passivation liquid or a titanium zirconium passivation liquid. The composition of the silane passivation liquid is: 3-amino Propyltriethoxysilane (KH-550) 1-3% and ethanol / water mixed solvent, pH: 4.5-5.5 (adjusted with acetic acid), the components of the titanium zirconium passivation solution are: fluorotitanic acid (H2TiF6) 0.5-1.5g / L and fluorozirconic acid (H2ZrF6) 0.3-0.8g / L, pH: 3.5-4.5 (adjusted with ammonia water), the temperature is maintained in the range of 25-40°C (the silane system needs to be temperature-controlled to prevent volatilization), the passivation time is in the range of 1-2 minutes, and the interior of the drying tank 25 is provided with a blower and a heater for hot air drying the substrate 9, the temperature is in the range of 80-100°C, the wind speed reaches the range of 8-12m / s, and the time is 40-60 seconds, the goal is to completely dehydrate and solidify the passivation film on the front of the substrate 9, and no droplets remain on the surface.

[0050] In this embodiment, the implementation scenario is specifically as follows: the aluminum-zinc-coated steel strip 8 is unwound and transported to the cutting and pressing component 12 by the unwinding component 11, and the aluminum-zinc-coated steel strip 8 is pressed into a wavy shape and cut into a plurality of separate substrates 9 by the stamping die and cutting tool of the cutting and pressing component 12. The substrates 9 are stacked at the discharge port 13, and the substrates 9 at the discharge port 13 are transferred to the material box 265 manually or by a robot. The mounting shaft 264 is moved to the material box 265 by the Y-axis driver 262 driven by the X-axis driver 261, and the mounting shaft 264 is driven downward by the Y-axis driver 262. The solid is adsorbed by the negative pressure pump, the air pipe 266, the mounting shaft 264 and the suction cup component 101. A row of several substrates 9 is fixed. At this time, the first filling block 102 and the second filling block 103 are respectively filled and fitted into the back trough and the joint of the substrate 9, and are pressed by the pressing component 1031. Then, the mounting shaft 264 is driven to move upward to take out a row of substrates 9 from the inside of the material box 265. The movable seat 26 is driven by the Z-axis driver 27 to move a row of substrates 9 to the top of the detergent pool 22 and stop. The mounting shaft 264 is moved downward to spray clean the row of substrates 9 on it in the detergent pool 22. Then, the mounting shaft 264 is moved upward to remove a row of substrates 9 from the detergent pool 22. The Z-axis driver 27 drives the mounting shaft 264 to move to the top of the clean water pool 23 and stop. , the installation shaft 264 moves downward to perform countercurrent water washing on a row of substrates 9, the installation shaft 264 moves upward to remove a row of substrates 9 from the clean water tank 23, the Z-axis driver 27 drives the installation shaft 264 to move to the top of the passivation tank 24 and stops, the installation shaft 264 moves downward to immerse the front of a row of substrates 9 in the passivation solution, and the first filling block 102 and the second filling block 103 are filled to prevent the passivation solution from entering the back trough and the top of the joint of the substrate 9. After passivation is completed, the installation shaft 264 moves upward to remove a row of substrates 9 from the passivation tank 24, the Z-axis driver 27 drives the installation shaft 264 back to the clean water tank 23 for water washing, and then moves the installation shaft 264 The machine moves to the top of the drying tank 25 and stops, the installation shaft 264 moves downward, and a row of substrates 9 are dried with hot air in the drying tank 25, and a row of substrates 9 are removed from the drying tank 25, and the installation shaft 264 is moved to the material tray, and a row of substrates 9 after passivation treatment are placed on the material tray, and the transport vehicle 7 is used to transfer the substrates 9 on the material tray to the adhesive spraying mechanism 3, and the adhesive is sprayed on the front of the substrate 9, and then the substrate 9 is transferred to the sanding mechanism 4, and sand is planted on the front of the substrate 9, and the sand-covered substrate 9 is transferred to the upper protective layer mechanism 5, and a protective layer is applied to the front of the substrate 9, and finally the substrate 9 is transferred to the drying mechanism 6 for drying, completing the entire production line process of the metal colored stone tile.

[0051] Example 2

[0052] Refer to the instruction manual Figure 9 and Figure 10A fixed shaft 104 is installed on the first filling block 102 and the second filling block 103. A driving shaft 105 passes through the interior of the fixed shaft 104. Connecting rods 106 are installed at both ends of the driving shaft 105. A clamping plate 107 is installed on the connecting rod 106. A telescopic sleeve 108 is installed on the clamping plate 107. An isolation sheet 109 is provided between the two sets of fixed shafts 104. The isolation sheet 109 is provided with multiple layers, and the edges of the multi-layer isolation sheets 109 are stepped.

[0053] It should be noted that the isolation sheet 109 is a soft membrane component that can adapt to the bottom shape of the first filling block 102 and the second filling block 103. The isolation sheet 109 is arranged in multiple layers, and the edges of the multi-layer isolation sheet 109 are uneven. The edge length of the inner layer isolation sheet 109 close to the fixed shaft 104 is greater than the edge length of the outer layer isolation sheet 109, that is, the edge of the multi-layer isolation sheet 109 is stepped, and both ends of the isolation sheet 109 are located above the liquid level of the passivation liquid. One end of the drive shaft 105 is connected to the drive motor for driving the drive shaft 105 to rotate, and the drive shaft 105 drives the clamping plate 107 to rotate along the outer periphery of the fixed shaft 104 through the connecting rod 106.

[0054] Furthermore, a secondary sleeve 1081 is provided for sliding inside the telescopic sleeve 108, a tightening column 1082 is provided for sliding inside the secondary sleeve 1081, a primary spring component 1083 is fixed between one end of the secondary sleeve 1081 and one end inside the telescopic sleeve 108, and a secondary spring component 1084 is fixed between one end of the tightening column 1082 and one end inside the secondary sleeve 1081.

[0055] It should be noted that the elastic coefficient of the first-level spring component 1083 is greater than the elastic coefficient of the second-level spring component 1084. During the process of the tightening column 1082 shrinking into the second-level sleeve 1081, the second-level spring component 1084 is squeezed and shrunk first, and the first-level spring component 1083 is squeezed and shrunk later. The tightening column 1082 is used to abut the edge of the positioning substrate 9, and the second-level spring component 1084 pushes the tightening column 1082 to gradually extend, adapting to abut the edges of the isolation sheets 109 of different layers, and positioning the isolation sheets 109 on the fixed shaft 104.

[0056] In this embodiment, the implementation scenario is specifically as follows: since the upper joint portion of the substrate 9 is immersed in the passivation liquid, a portion of the bottom of the first filling block 102 and the second filling block 103 is also in contact with the passivation liquid. After long-term use, the contact surface of the first filling block 102 and the second filling block 103 is eroded by the passivation liquid and the surface changes, resulting in the first filling block 102 and the second filling block 103 not fitting tightly together. Taking the second filling block 103 as an example, by arranging a multi-layer isolation sheet 109 at the bottom of the second filling block 103, the isolation sheet 109 located on the outermost layer is in contact with the passivation liquid. After a certain number of uses, by rotating the drive shaft 10 The connecting rod 106 drives the pressing plate 107 to rotate, and the pressing column 1082 is transferred to the edge of the second-layer spacer 109 and positioned, and the outermost spacer 109 is thrown off. The following is one of the methods for handling the thrown-off spacer 109. The thrown-off spacer 109 is placed on the substrate 9 after passivation and can be manually removed later. By providing the automatically thrown-off spacer 109 as a whole, the bottom of the first filling block 102 and the second filling block 103 is replaced by direct contact with the passivation solution, thereby extending the service life of the first filling block 102 and the second filling block 103 and ensuring that the bottom of the first filling block 102 and the second filling block 103 is tightly attached to the substrate 9.

[0057] Example 3

[0058] Refer to the instruction manual Figure 6 and Figure 11 A brushing mechanism 200 is installed inside the passivation tank 24. The output end of the brushing mechanism 200 is in rolling contact with the front wave trough of the substrate 9. The brushing mechanism 200 includes a driving rod 201. The top of the driving rod 201 is provided with a calibration block 203, and the calibration block 203 is in contact with the front wave peak of the substrate 9.

[0059] It should be noted that when the alignment block 203 abuts against the front wave peak of the substrate 9, it plays a correction role, so that the front of the substrate 9 is in a passivation position. The alignment block 203 also plays a supporting role, cooperating with the suction cup assembly 101 to position the substrate 9.

[0060] Furthermore, a linear driver is installed on the driving rod 201, and the output end of the linear driver is connected to an extension plate 202, and a coupling block 204 is installed on the extension plate 202. The coupling block 204 is rotatably connected to a linkage shaft 205 through a torsion spring, and the end of the linkage shaft 205 away from the coupling block 204 is rotatably connected to a brush cylinder 206, and the axial direction of the brush cylinder 206 coincides with the front wave peak direction of the substrate 9. A support spring 207 is provided between the extension plate 202 and the coupling block 204, and a limit block 208 is fixed on the coupling block 204.

[0061] It should be noted that two groups of extension plates 202 are set on both sides of the driving rod 201. The linear driver drives the extension plates 202 to move vertically along the driving rod 201. When the linkage shaft 205 deflects to the maximum angle, it is limited by the limit block 208.

[0062] In this embodiment, the implementation scenario is as follows: when the passivation position of the substrate 9 is as shown in the attached Figure 7 As shown, the back trough of the substrate 9 is above the passivation liquid level, and the first filling block 102 does not need to be set. However, the front trough of the substrate 9 is also above the passivation liquid level, which makes it impossible for this part to fully contact the passivation liquid for passivation treatment. The linear driver on the driving rod 201 drives the extension plate 202 to move upward, so that the two sets of linkage shafts 205 are deflected away from the driving rod 201, and the support spring 207 rebounds and pushes the brush cylinder 206 to roll along the front trough surface of the substrate 9. When the extension plate 202 moves downward, the brush cylinder 206 is reset to approach each other and reset by the torsion spring, that is, the extension plate 202 moves up and down, so that the brush cylinder 206 rolls back and forth along the surface of the front trough of the substrate 9. When the extension plate 202 drops to the lowest position, the brush cylinder 206 will be immersed in the passivation liquid, and the passivation liquid is brushed on the front trough of the substrate 9 through the brushing mechanism 200 to ensure that the front of the substrate 9 is completely passivated.

[0063] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A production line for metal colored stone tiles with uniform sand coating, comprising a pretreatment unit, characterized in that: The pretreatment unit comprises a coil processing mechanism (1), wherein the output end of the coil processing mechanism (1) is provided with a passivation processing mechanism (2), and the aluminum-zinc-coated steel strip (8) is processed by the coil processing mechanism (1) to obtain a plurality of groups of substrates (9), wherein the two sides of the substrates (9) are a sand-planting surface and a back surface, respectively, and the passivation processing mechanism (2) is used to perform a secondary passivation treatment on the sand-planting surface of the substrates (9); The passivation treatment mechanism (2) comprises a mounting frame (21), a passivation tank (24) is mounted on the mounting frame (21), a movable seat (26) is mounted on the mounting frame (21), a driving assembly is mounted on the movable seat (26), a mounting shaft (264) is mounted on the output end of the driving assembly, and an adsorption mechanism (100) is mounted on the mounting shaft (264); The adsorption mechanism (100) includes a suction cup assembly (101), and the suction cup assembly (101) is fixed to the back wave crest of the substrate (9) by adsorption, and filling assemblies are provided on both sides of the suction cup assembly (101), and a plurality of groups of filling assemblies are provided corresponding to the back wave trough and the joint portion of the substrate (9); By providing a filling component, the filling component is attached to the back of the substrate (9) and pressed tightly, thereby preventing the back of the substrate (9) from directly contacting the passivation liquid and preventing the substrate (9) from falling into the passivation tank (24) due to a reduction in the adsorption force of the adsorption mechanism (100).

2. The production line of a uniformly sand-coated metal colored stone tile according to claim 1, characterized in that: The filling assembly includes a first filling block (102), and the first filling block (102) is fitted with the trough on the back side of the substrate (9); a second filling block (103) is provided on the side of the suction cup assembly (101) away from the first filling block (102), and the second filling block (103) is fitted with the joint of the substrate (9); a clamping assembly (1031) is installed on both the first filling block (102) and the second filling block (103), and one end of the clamping assembly (1031) is connected to the mounting shaft (264).

3. The production line of a uniformly sand-coated metal colored stone tile according to claim 2, characterized in that: The coil processing mechanism (1) comprises an unwinding assembly (11), the output end of the unwinding assembly (11) is provided with a cutting and pressing assembly (12), the output end of the cutting and pressing assembly (12) is provided with a discharge port (13), the unwinding assembly (11) is used to unwind the galvanized steel strip (8) and convey it to the cutting and pressing assembly (12), and the galvanized steel strip (8) is pressed and cut by the cutting and pressing assembly (12).

4. The production line of a uniformly sand-coated metal colored stone tile according to claim 3, characterized in that: The driving assembly includes a Z-axis driver (27), the output end of the Z-axis driver (27) is connected to the movable seat (26), the movable seat (26) is equipped with an X-axis driver (261), the output end of the X-axis driver (261) is equipped with a Y-axis driver (262), the output end of the Y-axis driver (262) is equipped with a mounting plate (263), and the mounting shaft (264) is detachably mounted on the mounting plate (263).

5. The production line of a uniformly sand-coated metal colored stone tile according to claim 4, characterized in that: A material box (265) is installed on the movable seat (26), and the material box (265) is used to place a plurality of groups of substrates (9). A negative pressure component is installed on the movable seat (26), and an air supply pipe (266) is connected between the negative pressure component and the installation shaft (264). The suction cup component (101) is arranged in a plurality of groups along the axial direction of the installation shaft (264), and the installation shaft (264) is connected to the suction cup component (101), and the substrates (9) inside the material box (265) are sucked through the suction cup component (101).

6. The production line of a uniformly sand-coated metal colored stone tile according to claim 5, characterized in that: A clean water tank (23) and a drying tank (25) are respectively provided on both sides of the passivation tank (24); a detergent tank (22) is provided on the side of the clean water tank (23) away from the passivation tank (24); and the Z-axis driver (27) drives the movable seat (26) to move on top of the detergent tank (22), the clean water tank (23), the passivation tank (24) and the drying tank (25).

7. The production line of a uniformly sand-coated metal colored stone tile according to claim 6, characterized in that: A fixed shaft (104) is installed on each of the first filling block (102) and the second filling block (103), a driving shaft (105) passes through the interior of the fixed shaft (104), connecting rods (106) are installed at both ends of the driving shaft (105), a pressing plate (107) is installed on the connecting rod (106), and a telescopic sleeve (108) is installed on the pressing plate (107), and an isolation sheet (109) is provided between the two groups of the fixed shafts (104), and the isolation sheet (109) is provided with multiple layers, and the edges of the multiple layers of isolation sheets (109) are stepped.

8. The production line of a uniformly sand-coated metal colored stone tile according to claim 7, characterized in that: A secondary sleeve (1081) is provided for sliding inside the telescopic sleeve (108), a tightening column (1082) is provided for sliding inside the secondary sleeve (1081), a primary spring component (1083) is fixed between one end of the secondary sleeve (1081) and one end inside the telescopic sleeve (108), and a secondary spring component (1084) is fixed between one end of the tightening column (1082) and one end inside the secondary sleeve (1081).

9. The production line of a uniformly sand-coated metal colored stone tile according to claim 8, characterized in that: A brushing mechanism (200) is installed inside the passivation tank (24), and an output end of the brushing mechanism (200) is in rolling contact with the front wave trough of the substrate (9). The brushing mechanism (200) includes a driving rod (201), and a calibration block (203) is provided at the top end of the driving rod (201), and the calibration block (203) is in contact with the front wave crest of the substrate (9).

10. The production line of metal colored stone tiles with uniform sand coating according to claim 9, characterized in that: A linear driver is mounted on the driving rod (201), an output end of the linear driver is connected to an extension plate (202), a coupling block (204) is mounted on the extension plate (202), a linkage shaft (205) is rotatably connected to the coupling block (204) via a torsion spring, an end of the linkage shaft (205) away from the coupling block (204) is rotatably connected to a brush cylinder (206), an axial direction of the brush cylinder (206) coincides with a front wave crest direction of the substrate (9), a support spring (207) is provided between the extension plate (202) and the coupling block (204), and a limit block (208) is fixedly provided on the coupling block (204).

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