Gluing device for disc-shaped suspension type porcelain insulator blank

Abstract

A disc-shaped suspension type porcelain insulator blank gluing device belongs to the technical field of disc-shaped suspension type porcelain insulator gluing, an X servo shaft is provided with a Y servo shaft, and the movable end of the Y servo shaft is provided with the fixed ends of Z1 and Z2 shaft cylinders. And residual liquid collecting boxes are respectively arranged on two sides of the fixed end of the Y servo shaft. A residual liquid collecting box is provided with a residual liquid scraper moving shaft and a residual liquid scraper. A peristaltic pump is installed at the movable end of the Z1 air cylinder shaft. A scraper rotating motor and a scraper are arranged at the movable end of the Z2-axis air cylinder. A distance measuring sensor is arranged on the top of the Y servo shaft. The peristaltic pump dispenses glue at the head of the blank, the scraper plate is used for gluing, residual liquid is collected on the residual liquid collecting box, and gluing can be conveniently achieved.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive coating technology for disc suspension porcelain insulators, and specifically relates to an adhesive coating device and method for disc suspension porcelain insulator blanks. Background Technology

[0002] During the production of disc-type suspension porcelain insulators, a layer of alumina powder is first laid inside the firing pad before the blanks are fired. This is to separate the bottom surface of the blank head from the pad and prevent them from sticking together under the high temperature of the firing kiln. Currently, a more advanced practice in the industry is to coat the bottom surface of the blank head with a special adhesive, which also serves to isolate the blank from the pad, thus eliminating the need for alumina powder. This approach avoids the economic losses caused by granular alumina powder being blown onto the blank surface during the firing stage by the airflow within the kiln, resulting in defective products.

[0003] Currently, the application of adhesive to the heads of blanks is done manually. During the sandblasting process, operators hold a glue cup in one hand and apply the adhesive to the heads of each blank on the sandblasting machine conveyor belt using a brush. Obviously, this manual method makes quality control difficult. In particular, the thickness, uniformity, and application location of the adhesive cannot be consistent across all products, resulting in unsatisfactory application. This directly affects the adhesive's ability to prevent sticking during firing and can easily lead to blank heads adhering to the firing pad, resulting in defective products. To improve coating quality, reduce economic losses, and save manpower, there is an urgent need to design an automatic adhesive application device to replace manual application. Utility Model Content

[0004] One objective of this invention is to provide a gluing device for disc-shaped suspension porcelain insulator blanks, and another objective is to provide a gluing method using the device, which allows for convenient gluing.

[0005] A device for applying adhesive to disc-shaped suspension porcelain insulator blanks includes an X servo axis, a Y servo axis, a Z1 axis cylinder, a Z2 axis cylinder, and an adhesive mixing tank.

[0006] The movable end of the X servo axis has the fixed end of the Y servo axis.

[0007] The movable end of the Y servo axis has the fixed end of the Z1 axis cylinder and the fixed end of the Z2 axis cylinder.

[0008] A first residual liquid collection box is installed on one side of the fixed end of the Y servo axis.

[0009] The first residual liquid collection box has a residual liquid scraper moving shaft set in the X direction, and the movable end of the residual liquid scraper moving shaft has a residual liquid scraper.

[0010] A second residual liquid collection box is installed on the other side of the fixed end of the Y servo axis.

[0011] A peristaltic pump is installed on the movable end of the Z1 cylinder shaft, and the outlet of the peristaltic pump is a dispensing tube.

[0012] The movable end of the Z2 axis cylinder has a vertically arranged scraper rotary motor, and a scraper is fixed on the output shaft of the scraper rotary motor.

[0013] The outlet pipe of the adhesive mixing tank is connected to the inlet of the peristaltic pump.

[0014] The adhesive mixing tank is equipped with a stirrer and a liquid level sensor.

[0015] The top fixed end of the Y-axis is equipped with a distance measuring sensor.

[0016] A method for applying adhesive using a disc-shaped suspension porcelain insulator blank adhesive applicator is also provided.

[0017] Its advantages are:

[0018] This device is designed with a peristaltic pump to control the amount of adhesive dispensed. As the dispensing tube moves along the head of the workpiece, the amount of adhesive extruded varies depending on the diameter of the workpiece head. The dispensing tube's movement speed is adjustable to accommodate different adhesive thicknesses. The scraper's rotation speed is also adjustable to accommodate different adhesive concentrations during the leveling process. The distance between the scraper and the workpiece head is adjustable to accommodate varying adhesive thicknesses.

[0019] To accommodate potential height variations within the same blank, a distance sensor measures the height of the blank's head to control the actuator, ensuring it accurately lands at a predetermined position above the blank. This design allows for controllable distances at which the scraper lands on the blank's head during adhesive application, ensuring consistent adhesive thickness and guaranteeing uniform adhesive application thickness even when height variations exist within the same product.

[0020] The dispensing speed of the dispensing tube is adjustable to accommodate different coating thicknesses and the required amount of adhesive for different diameters.

[0021] The rotation speed of the scraper is adjustable to accommodate different concentrations of adhesive liquid, allowing it to be quickly spread out under the action of the scraper.

[0022] There will be adhesive residue at the outlet of the dispensing tube and the lower edge of the scraper. Therefore, after the outlet of the dispensing tube and the scraper leave the dispensing position, they will automatically return to the safe zone. This is to prevent the residual liquid on the outlet of the dispensing tube and the scraper from dripping onto the workpiece tray, and to scrape off the residual adhesive on the scraper.

[0023] The adhesive mixing tank for storing the coating solution has a stirring function to prevent the concentration of the adhesive solution from decreasing due to sedimentation, and to ensure...

[0024] It ensures the isolation of the special adhesive from the outside air, stabilizes the production process, and maintains the consistency of the adhesive application effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a partial structural diagram of the cylinders on axes Z1 and Z2.

[0027] Figure 3 This is a partial structural diagram of the scraper rotary motor.

[0028] Figure 4 This is a schematic diagram of a partial structure of a peristaltic pump.

[0029] Figure 5 This is a schematic diagram showing the arrangement of two cylinders.

[0030] 1. Blank, 2. Sandblasting machine conveyor belt, 3. X servo axis, 4. Y servo axis, 5. Scraper rotary motor, 6. Z1 axis cylinder, 7. Z2 axis cylinder, 8. Residual liquid scraper moving shaft, 9. Peristaltic pump, 10. Distance sensor.

[0031] 11. Adhesive mixing tank, 12. Liquid level sensor, 13. Scraper, 14. First residual liquid collection box, 15. Dispensing tube, 16. Fixing bracket, 17. Second residual liquid collection box, 18. Residual liquid scraper, 19. Stirrer, 20. Cavity. Detailed Implementation

[0032] A disc-shaped suspension porcelain insulator blank gluing device can be applied to the head of the blank on a sandblasting machine, or as an independent gluing machine, to complete the automatic application of a special adhesive to the head of the blank. The sandblasting machine conveyor belt 2 on the sandblasting machine transports the blank 1 to the gluing station where this device is located, and performs the gluing operation on the head of the blank. The fixed bracket 16 is the frame beam of the sandblasting machine.

[0033] A device for applying adhesive to a disc-shaped suspension porcelain insulator blank includes an X servo axis 3, a Y servo axis 4, a Z1 axis cylinder 6, a Z2 axis cylinder 7, and an adhesive mixing tank 11. The Z1 axis cylinder 6 and the Z2 axis cylinder 7 are arranged along the Z1 axis and Z2 axis, respectively.

[0034] The fixed ends of the X servo axis 3 are mounted on the fixed bracket 16 on both sides, and the fixed ends of the Y servo axis 4 are mounted on the movable end of the X servo axis 3 that moves along the X-axis direction.

[0035] The movable end of the Y-servo axis 4 is equipped with the fixed end (Z1 axis cylinder rod) of the Z1 axis cylinder 6 and the fixed end (Z2 axis cylinder rod) of the Z2 axis cylinder 7, which move along the Y-axis direction.

[0036] A first residual liquid collection box (residual liquid collection box A) 14 is installed on one side of the fixed end of the Y servo axis 4.

[0037] The first residual liquid collection box 14 is equipped with two fixed ends of the residual liquid scraper moving shaft 8. The movable end of the residual liquid scraper moving shaft 8 is equipped with a residual liquid scraper 18 that can move along the X servo axis. The residual liquid scraper 18 is U-shaped.

[0038] A second residual liquid collection box (residual liquid collection box B) 17 is installed on the other side of the fixed end of the Y servo axis 4.

[0039] The movable end (Z1 axis cylinder body) of the Z1 axis cylinder 6 moves along the Z-axis direction. A peristaltic pump 9 (the housing of the peristaltic pump 9 is fixed on the Z1 axis cylinder body) is installed on the movable end of the Z1 axis cylinder 6. The outlet of the peristaltic pump 9 is the dispensing tube 15. Under the push of the Z1 axis cylinder 6, the peristaltic pump 9 and the dispensing tube 15 installed on the movable end of the Z1 axis cylinder have two moving positions in the Z-axis direction. One position is above the second residual liquid collection box 17, that is, the outlet of the dispensing tube 15 on the Z1 axis cylinder 6 is above the second residual liquid collection box 17; the other position is that the outlet of the dispensing tube 15 moves to above the head of the blank 1.

[0040] The movable end (Z2 axis cylinder body) of the Z2 axis cylinder 7 moves along the Z-axis direction. A vertically arranged scraper rotary motor 5 (the housing of the scraper rotary motor 5 is fixed on the Z2 axis cylinder body) is installed on the movable end of the Z2 axis cylinder 7. A scraper 13 is fixed on the output shaft of the scraper rotary motor 5. Driven by the scraper rotary motor 5, the scraper 13 rotates to complete the scraping operation of the adhesive on the head of the blank 1. The movable end of the Z2 axis cylinder 7 has two moving positions in the Z-axis direction. One position is above the first residual liquid collection box 14, and the length direction of the scraper 13 is parallel to the X-axis. The first residual liquid collection box 14 is used to catch the residual liquid dripping from the scraper 13. The other position is when the scraper 13 moves to above the head of the blank 1, and the residual liquid scraper 18 moves from below the scraper 13 in a U-shape, which can clean the front, back and bottom of the lower edge of the scraper 13.

[0041] Cylinder 6 on axis Z1 and cylinder 7 on axis Z2 are arranged in parallel and opposite directions, such as Figure 5 As shown.

[0042] This device is designed with a cleaning scraper mechanism (residual liquid scraper moving shaft 8 and residual liquid scraper 18). To prevent the glue from dripping onto the blank umbrella tray, residual liquid collection boxes are designed below the glue dispensing tube 15 and the scraper 13 respectively. After the glue dispensing tube 15 and the scraper 13 leave the working area, they can be moved to the top of the corresponding residual liquid collection box.

[0043] The outlet pipe of the adhesive mixing tank 11 is connected to the inlet of the peristaltic pump 9.

[0044] The adhesive mixing tank 11 is equipped with a stirrer 19, such as a stirring motor and stirring blades fixed on the output shaft.

[0045] The adhesive mixing tank 11 is equipped with a liquid level sensor 12. When the liquid level is lower or higher than the warning value, an alarm is triggered to prompt the addition of adhesive or to stop adding adhesive to the adhesive mixing tank 11.

[0046] A liquid level sensor 12 is used to detect the liquid level in the adhesive mixing tank 11, and a stirring motor agitates the liquid in the mixing tank 11. On the one hand, the rotation speed of the peristaltic pump 9 can be adjusted to achieve quantitative operation based on the amount of adhesive used for different products; on the other hand, the travel speed of the dispensing tube 15, controlled by the X servo axis 3, can also control the amount of adhesive on the head of the blank 1.

[0047] The top fixed end of the Y servo axis 4 is equipped with a distance sensor 10. The distance sensor 10 is used to position the top surface of the blank 1 and control the distance between the dispensing tube 15 and the scraper 1 and the top of the blank 1 to a suitable position.

[0048] The bottom surface of the scraper 13 has the same shape as the head of the blank 1 and is a certain distance away. The cavity 20 formed is the shape and amount of adhesive scraped out when the scraper 13 rotates.

[0049] This device includes an X-axis, Y-axis, Z1-axis, Z2-axis and a residual liquid scraper moving axis 8, forming a three-dimensional five-axis mechanism.

[0050] 5-axis linkage:

[0051] 1) Control the length and density of the dispensing along the X-axis.

[0052] 2) The Y-axis direction of the gap between scraper 13 and the head of blank 1.

[0053] 3) Clean the residual liquid on scraper 13 in the Z2 axis direction.

[0054] 4) Move the dispensing tube 15 to the Z1 axis direction of the dispensing position.

[0055] 5) Rotation of scraper 13.

[0056] 8 main actions:

[0057] 1) X servo axis 3 controls the dispensing length and dispensing density.

[0058] 2) Y-axis 4 controls the gap between scraper 13 and the head of blank 1, so as to suit different products and the same product due to manufacturing differences, which need to control the positioning of scraper 13 from the head of blank 1 according to the height signal fed back by distance sensor 10.

[0059] 3) The scraper rotary motor 5 servo axis controls the rotation angle and number of rotations of the scraper 13.

[0060] 4) Z1 cylinder shaft, used to push peristaltic pump 9 and dispensing tube 15 to the dispensing position or to a safe position away from the head of blank 1.

[0061] 5) Z2 axis cylinder, used to push the scraper rotation motor 5 servo axis to the scraping position or to the cleaning residual liquid position.

[0062] 6) The residual liquid scraper 18 on the movable end of the residual liquid scraper moving shaft 8 is used to scrape off the residual liquid on the scraper 13 during the movement process.

[0063] 7) Peristaltic pump 9 delivers adhesive solution in a quantitative manner.

[0064] 8) Stirring and liquid level alarm of adhesive mixing tank 11.

[0065] This device can be installed on the upper end of the conveyor line of an existing sandblasting machine, or it can be used independently to form a system.

[0066] Specialized glue applicator. This device utilizes the inner eye glue spraying station of the sandblasting machine to perform glue application on the head. When the blank 1 is moved to the inner eye glue spraying station after being positioned on the outer circle of the head of the sandblasting machine by the rear end of the head positioning mechanism, the automatic glue application function of the device on the top surface of the head of the blank 1 is completed.

[0067] After sandblasting and glazing, the blank 1 of the disc-shaped suspension porcelain insulator is nearly finished when it reaches the head-end adhesive coating stage. Therefore, this adhesive coating device must have reliable positioning accuracy when performing the adhesive coating process on the blank head. The adhesive dispensing tube 15 used for quantitative extrusion and the scraper 13 used for leveling the adhesive need to be precisely controlled when in contact with the blank 1. Under the mechanical and electrical control of this adhesive coating device, the distance sensor 10 first measures the height of the blank head. Based on the data stored in the PLC in advance and combined with different products, the controller sends control commands to the actuator. This solves the height deviation that exists in the manufacturing of the same product and can also ensure the thickness of the adhesive coating on the head, achieving a better effect than manual adhesive coating.

[0068] The X servo axis 3, Y servo axis 4, and residual liquid scraper moving axis 8 are all existing mechanical structures, such as guide rail slider pairs or lead screw nut pairs.

[0069] A method for applying adhesive using a disc-shaped suspension porcelain insulator blank includes the following steps:

[0070] Z1 axis cylinder 6 and Z2 axis cylinder 7 move up and down following the movable end of Y servo axis 4, while the fixed end of Y servo axis 4 moves left and right following the movable end of X servo axis 3.

[0071] When the blank 1 moves to the position below the dispensing tube 15, the distance sensor 10 first measures the height of the blank 1 head, adapts to the height deviation of the blank 1, and ensures that the gap between the scraper 13 and the top surface of the blank 1 head matches the thickness of the adhesive. The dispensing tube 15 is then controlled to descend from above, and the outlet of the dispensing tube 15 is moved to a suitable position relative to the top surface of the blank 1 head. Under the control of the peristaltic pump 9, adhesive is dispensed in a quantitative manner. The amount of adhesive used is set on the PLC touchscreen according to the different head areas of the blank 1. The adhesive is squeezed out and applied to the head of the blank 1, with the outlet of the dispensing tube 15 at the top surface of the blank 1 head. The cylinder rod of the Z1 axis cylinder 6 extends outward, dispensing adhesive along the diameter direction. The adhesive droplets are smaller at the center and larger near the circumference. The length and density of the dispensing can be quantitatively adjusted under the control of the PLC.

[0072] After the scraper 13 extrudes the adhesive through the dispensing tube 15, the cylinder rod of the Z2 axis cylinder 7 retracts and moves to a suitable position at the top of the blank 1. The distance between the bottom surface of the scraper 13 and the head of the blank 1 is the required adhesive thickness. The scraper rotation motor 5 drives the scraper 13 to rotate 360° to scrape the adhesive on the head of the blank 1. The rotation speed and number of rotations of the scraper 13 can be set.

[0073] After the dispensing tube 15 completes one dispensing operation, the cylinder rod of the Z1 axis cylinder 6 extends and moves to the second residual liquid collection box 17.

[0074] After the scraper 13 completes one scraping, the cylinder rod of the Z2 axis cylinder 7 extends and moves to the first residual liquid collection box 14. At the same time, the residual liquid scraper 18 moves along the residual liquid scraper moving axis 8 to clean the residual adhesive on the surface of the scraper 13, preventing the adhesive from accumulating for a long time and affecting the coating effect, and waiting for the next blank 1 to be coated.

[0075] The adhesive mixing tank 11 is equipped with a liquid level sensor 12 to detect the level of the adhesive. An alarm is triggered when the level falls below the lower limit, prompting the user to replenish the adhesive. An agitator 19 is installed inside the adhesive mixing tank 11. During the adhesive application process, the agitator motor rotates to prevent the adhesive from settling and affecting its thinning.

[0076] The adhesive is stored in the adhesive mixing tank 11. During the adhesive application process, the adhesive is stirred to prevent sedimentation.

Claims

1. A device for applying adhesive to disc-shaped suspension porcelain insulator blanks, comprising an X servo axis (3), a Y servo axis (4), a Z1 axis cylinder (6), a Z2 axis cylinder (7), and an adhesive mixing tank (11); characterized in that: The movable end of the X servo axis (3) has the fixed end of the Y servo axis (4); The movable end of the Y servo axis (4) has the fixed end of the Z1 axis cylinder (6) and the fixed end of the Z2 axis cylinder (7); A first residual liquid collection box (14) is installed on one side of the fixed end of the Y servo axis (4). The first residual liquid collection box (14) has a residual liquid scraper moving shaft (8) set in the X direction, and the movable end of the residual liquid scraper moving shaft (8) has a residual liquid scraper (18). A second residual liquid collection box (17) is installed on the other side of the fixed end of the Y servo axis (4). A peristaltic pump (9) is installed on the movable end of the Z1 axis cylinder (6), and the outlet of the peristaltic pump (9) is a dispensing tube (15). The movable end of the Z2 axis cylinder (7) has a vertically arranged scraper rotary motor (5), and a scraper (13) is fixed on the output shaft of the scraper rotary motor (5). The outlet pipe of the adhesive mixing tank (11) is connected to the inlet of the peristaltic pump (9).

2. The adhesive coating device for a disc-shaped suspension porcelain insulator blank according to claim 1, characterized in that: The adhesive mixing tank (11) is equipped with a stirrer (19).

3. The adhesive coating device for a disc-shaped suspension porcelain insulator blank according to claim 2, characterized in that: The stirrer (19) includes a stirring motor and stirring blades fixed on the output shaft.

4. The adhesive coating device for a disc-shaped suspension porcelain insulator blank according to claim 1, characterized in that: The adhesive mixing tank (11) is equipped with a liquid level sensor (12).

5. The adhesive coating device for a disc-shaped suspension porcelain insulator blank according to claim 1, characterized in that: The top fixed end of the Y servo axis (4) is provided with a distance sensor (10).

6. The adhesive coating device for a disc-shaped suspension porcelain insulator blank according to claim 1, characterized in that: The fixed end of the Z1 axis cylinder (6) is the Z1 axis cylinder rod, and the fixed end of the Z2 axis cylinder (7) is the Z2 axis cylinder rod; The movable end of the Z1 axis cylinder (6) is the Z1 axis cylinder body, and the movable end of the Z2 axis cylinder (7) is the Z2 axis cylinder body.

7. The adhesive coating device for a disc-shaped suspension porcelain insulator blank according to claim 1, characterized in that: The residual liquid scraper (18) is U-shaped.

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