Hydraulic support surface treatment equipment and working method thereof

Abstract

The invention discloses hydraulic support surface treatment equipment and a working method thereof, and belongs to the field of hydraulic support surface treatment. Comprising a feeding device, a suspension type dry ice cleaning device, an air drying device, a suspension type electrostatic spraying device, a curing device, a discharging device and a conveying device, wherein the feeding device, the suspension type dry ice cleaning device, the air drying device, the suspension type electrostatic spraying device and the curing device are annularly arranged; and a lifting type clamping and overturning device for conveying workpieces to be treated is arranged between the discharging devices, and the lifting type clamping and overturning device is arranged on the annular hanger rail in a walking mode. According to the hydraulic support surface treatment equipment and the working method thereof, the lifting type clamping and overturning device is matched with the suspension type dry ice cleaning device and the suspension type electrostatic spraying device, comprehensive spraying and cleaning are achieved, later-stage repair is not needed, the surface treatment efficiency is improved, meanwhile, through an assembly line type circulating operation mode, the production efficiency is improved, and the production cost is reduced. And the surface treatment efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the field of surface treatment of hydraulic supports, and in particular to a surface treatment device for hydraulic supports and a working method thereof. Background Art

[0002] Hydraulic support is a kind of support equipment widely used in coal mining and other underground projects. Its main function is to provide stable support force during the advancement of the working face, maintain the stability and safety of the tunnel, and prevent accidents such as roof collapse and rock spalling. The hydraulic support controls the lifting and pushing of the support through the hydraulic system. It has the characteristics of strong support ability, flexible operation, high degree of automation, etc., thus expanding the scope of application.

[0003] In the production process of hydraulic supports, surface treatment is performed to improve their corrosion resistance, wear resistance and service life. The existing surface treatment methods for hydraulic supports are as follows:

[0004] CN200610022512.3 discloses a surface treatment method for a hydraulic support, which includes the following steps: rust removal by shot blasting or manual rust removal on the surface of the workpiece constituting the hydraulic support → oil removal and dust removal → room temperature electrostatic spraying → heating and curing → air cooling after exiting the furnace. The curing process parameters of the top beam, shielding beam and base of the hydraulic support are: heating temperature of 220-230°C; heating and heat preservation time of 100-150 minutes, and the curing process parameters of the front and rear connecting rods and side guard plates of the hydraulic support are heating temperature: 220-230°C; heating and heat preservation time of 50-90 minutes.

[0005] CN201810165764.4 discloses a surface treatment method for a hydraulic support column for mining, which includes the following steps: Step 1: degreasing, rust removal, and sandblasting roughening; Step 2: preparing metal ceramic coating powder; Step 3: using supersonic flame spraying equipment and metal ceramic coating powder to spray metal ceramic coating on the surface of the hydraulic support column for mining; Step 4: using organic resin to seal the surface coating of the hydraulic column after spraying; Step 5: grinding and polishing the surface of the hydraulic column after the sealing treatment.

[0006] CN201310583658.5 discloses a surface treatment method for hydraulic support columns and jacks, comprising the following process steps performed in sequence: processing the outer surfaces of the columns and jacks; preparing a catalytic alloy plating solution and heating it to 65-80°C for standby use; placing the processed and polished surfaces of the columns and jacks in the catalytic alloy plating solution for plating using heat-conducting oil or steam plating; post-plating treatment process; and obtaining a finished product.

[0007] It can be seen that the existing surface treatment methods of hydraulic supports, whether using painting, powder spraying or electroplating, will leave untreated areas at the clamping position of the fixture, requiring subsequent supplementary operations, reducing processing efficiency and increasing labor costs. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a hydraulic support surface treatment equipment and a working method thereof. Through the lifting clamping and flipping device in conjunction with a suspended dry ice cleaning device and a suspended electrostatic spraying device, comprehensive spraying and cleaning are achieved without the need for subsequent repairs, thereby improving the surface treatment efficiency. At the same time, through the form of assembly line cycle operation, the surface treatment efficiency is further improved.

[0009] To achieve the above-mentioned purpose, the present invention provides a hydraulic support surface treatment equipment, comprising a feeding device, a suspended dry ice cleaning device, an air drying device, a suspended electrostatic spraying device, a curing device, a feeding device arranged in a ring shape, and a lifting clamping and turning device for transmitting a workpiece to be processed between the feeding device, the suspended dry ice cleaning device, the air drying device, the suspended electrostatic spraying device, the curing device, and the feeding device, wherein the lifting clamping and turning device is arranged on a ring-shaped hanging rail;

[0010] The loading device, suspended dry ice cleaning device, air drying device, suspended electrostatic spraying device, curing device and unloading device all correspond to a lifting clamping and turning device.

[0011] Preferably, both the loading device and the unloading device are intermittent belt conveyors;

[0012] The lifting clamping and flipping device comprises a traveling trolley rollingly arranged at the bottom end of the annular hanging rail, a first-stage lifting cylinder fixed at the bottom end of the traveling trolley, a mounting plate fixed at the bottom end of the first-stage lifting cylinder, and a lifting workpiece flipping assembly fixed at both sides of the mounting plate;

[0013] A first infrared sensor is fixed at the center position of the bottom end of the mounting plate, and the first infrared sensor is electrically connected to the first-stage lifting cylinder and the feeding device through the controller.

[0014] Preferably, the lifting and flipping assembly comprises a secondary lifting cylinder fixed to both sides of the mounting plate, a clamping cylinder connected to the bottom output end of the secondary lifting cylinder, and a flipping drive motor connected to the horizontal output end of the clamping cylinder, and the output shaft of the flipping drive motor is connected to the clamping head;

[0015] The two clamping heads on both sides of the mounting plate are arranged opposite to each other, and second infrared sensors are embedded in the opposite ends of the two clamping heads. The second infrared sensors are electrically connected to the secondary lifting cylinder, the clamping cylinder and the flip driving motor respectively through the controller.

[0016] Preferably, the suspended dry ice cleaning device and the suspended electrostatic spraying device both include a suspension mechanism, the suspension mechanism includes a support seat, a working platform fixed above the support seat, and an air cushion arranged between the working platform and the support seat, a plurality of blowing holes arranged in an array are opened on the working platform, the blowing holes are connected to the top of the air cushion through the blowing pipe, and the bottom of the air cushion is connected to the air outlet of the air compressor;

[0017] The air drying device comprises two air drying racks symmetrically arranged about the workpiece to be processed, a side of the air drying rack facing the workpiece to be processed is provided with an air blowing port, and a side of the air drying rack facing away from the workpiece to be processed is connected to a blower;

[0018] The curing device comprises ultraviolet lamps arranged on two symmetrical sides of the workpiece to be processed.

[0019] Preferably, a third infrared sensor is embedded on the working platform between two adjacent blowing holes, and the third infrared sensor is electrically connected to the solenoid valve disposed in the blowing pipe via the controller.

[0020] Preferably, the suspended dry ice cleaning device also includes a dry ice cleaning machine arranged on one side of the suspension mechanism of the suspended electrostatic spraying device, the dry ice cleaning machine is connected to the transverse injection pipe through a first flexible connecting pipe and a spray gun, and a first injection port is opened at the bottom end of the transverse injection pipe.

[0021] Preferably, the suspended electrostatic spraying device includes an electrostatic sprayer arranged on the suspended side of the suspended electrostatic spraying device, the electrostatic sprayer is connected to the vertical spray head through a second flexible connecting pipe, and the vertical spray head is provided with a second spray port downward.

[0022] Preferably, the transverse spray pipe and the vertical spray head are both fixed to the output end of the three-axis movable platform, and the output end of the three-axis movable platform is also embedded with a fourth infrared sensor, which is electrically connected to the three-axis movable platform.

[0023] Preferably, the loading device, the suspended dry ice cleaning device, the air drying device, the suspended electrostatic spraying device, the curing device, and the unloading device are all arranged inside the protective cover, and the protective cover is provided with inlets and outlets aligned with the positions of the loading device and the unloading device;

[0024] The dry ice cleaning machine and the electrostatic spraying machine are both arranged outside the protective cover, and the first flexible connecting pipe and the second flexible connecting pipe pass through the protective cover and extend into the interior of the protective cover;

[0025] A three-axis moving platform is fixed on the inner wall of the protective cover.

[0026] The working method of the hydraulic support surface treatment equipment comprises the following steps:

[0027] S1. Loading:

[0028] The loading device transfers the workpiece to be processed to the inside of the protective cover until it is directly below the lifting clamping and flipping device corresponding to the loading device. At this time, the first infrared sensor detects an in-position signal, the loading device stops running, the first-level lifting cylinder moves until it reaches the limit position, and the second-level lifting cylinder moves until the second infrared sensor is blocked by the workpiece to be processed. At this time, the clamping head is aligned with the horizontal position of the workpiece to be processed, the clamping cylinder is opened, and the clamping cylinder drives the clamping head to move toward the direction of the workpiece to be processed until it is clamped, the clamping drive cylinder is closed, and the walking trolley drives the workpiece to be processed to move toward the direction of the suspended dry ice cleaning device;

[0029] S2. Dry ice cleaning:

[0030] S21. Cleaning the upper surface of the workpiece to be processed:

[0031] The trolley stops after traveling a set distance. At this time, the trolley is located directly above the suspension mechanism of the suspended dry ice cleaning device. At this time, the solenoid valve in the blocked range of the second infrared sensor is opened, and the workpiece to be processed is blown upward by the air compressor until the gravity of the airflow is equal to the gravity of the workpiece to be processed, the clamping cylinder, the first-level lifting cylinder and the second-level lifting cylinder are all reset, and the three-axis moving platform is turned on. The three-axis moving platform drives the horizontal injection pipe to move until the fourth infrared sensor detects the workpiece to be processed, and the dry ice cleaning machine is turned on to spray granular dry ice onto the upper surface of the workpiece to be processed. During the cleaning process, the three-axis moving platform drives the horizontal injection pipe to move in an arch shape until the cleaning of the upper surface of the workpiece to be processed is completed;

[0032] S21. Clean the lower surface of the workpiece to be processed:

[0033] The first-stage lifting cylinder of the lifting clamping and flipping device extends to the upper limit, and the second-stage lifting cylinder moves until the second infrared sensor detects the workpiece to be processed. The clamping cylinder moves to drive the clamping head to clamp the two sides of the workpiece to be processed, and the flipping drive motor moves to drive the workpiece to be processed to rotate vertically 180°. At this time, the lower surface of the workpiece to be processed faces upward. After the lifting clamping and flipping device is reset, the three-axis mobile platform is used to drive the horizontal spray pipe to clean the lower surface of the workpiece to be processed;

[0034] S3, air drying:

[0035] After cleaning, the first-stage lifting cylinder and the second-stage lifting cylinder of the lifting clamping and turning device work in sequence to clamp the two ends of the workpiece to be processed, and the walking trolley drives the cleaned workpiece to move toward the air-drying device until it enters the air-drying device, and the residue on the surface of the workpiece is dried by the air blown from the air-drying rack;

[0036] S4. Electrostatic spraying:

[0037] After air drying, the workpiece is transferred to the suspended electrostatic spraying device by means of a walking trolley. After the workpiece is placed on the suspension mechanism of the suspended electrostatic spraying device, the lifting clamping and flipping device is reset. The three-dimensional mobile platform drives the vertical spray head to move along the upper surface of the workpiece in an arch shape. During the movement, the electrostatically charged paint output from the electrostatic sprayer adheres to the upper surface of the workpiece. After the upper surface is sprayed, the lifting clamping and flipping device drives the workpiece to flip 180°, and the lower surface of the workpiece is sprayed repeatedly.

[0038] S5. Curing:

[0039] The workpiece is transported to the curing device by means of a traveling trolley, and the workpiece is cured by means of an ultraviolet lamp during the traveling process;

[0040] S6, unloading:

[0041] The workpiece is transferred to the intermittent belt conveyor of the unloading device by means of a traveling trolley, and the workpiece is transported to the next process by means of the intermittent belt conveyor.

[0042] The present invention has the following beneficial effects:

[0043] 1. The lifting clamping and flipping device is combined with the suspended dry ice cleaning device and the suspended electrostatic spraying device to achieve comprehensive spraying and cleaning, without the need for later repairs, which improves the surface treatment efficiency. At the same time, the surface treatment efficiency is further improved through the form of assembly line cycle operation, while reducing labor costs;

[0044] 2. Using dry ice cleaning instead of traditional sandblasting to treat the surface is more environmentally friendly;

[0045] 3. A lifting clamping and turning device is set corresponding to each workstation to realize synchronous processing and further improve the surface treatment efficiency.

[0046] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A flow chart of a hydraulic support surface treatment equipment according to the present invention;

[0048] Figure 2 It is a schematic diagram of a lifting type clamping and flipping device and a suspension mechanism of a hydraulic support surface treatment equipment of the present invention;

[0049] Figure 3 It is an outline diagram of a lifting type clamping and flipping device and a suspension mechanism of a hydraulic support surface treatment equipment of the present invention;

[0050] Figure 4 It is a blowing hole arrangement diagram of a hydraulic support surface treatment device of the present invention;

[0051] Figure 5 This is an installation diagram of a three-dimensional mobile platform of a hydraulic support surface treatment equipment of the present invention.

[0052] Among them: 1. feeding device; 2. suspension mechanism; 21. air cushion; 22. air compressor; 23. working platform; 24. blowing hole; 25. third infrared sensor; 3. dry ice cleaning machine; 31. spray gun; 32. horizontal spray pipe; 33. first flexible connecting pipe; 4. air drying rack; 41. blowing port; 5. electrostatic sprayer; 51. vertical nozzle; 52. second flexible connecting pipe; 6. curing device; 7. unloading device; 8. workpiece; 9. lifting clamping and turning device; 91. clamping head; 92. turning drive motor; 93. walking trolley; 94. first-level lifting cylinder; 95. clamping cylinder; 96. second-level lifting cylinder; 10. circular hanging rail; 11. protective cover; 12. three-dimensional moving platform. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical scheme and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0054] It should be noted that the terms "include", "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or devices.

[0055] Like reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0056] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] like Figure 1-Figure 5 As shown, a hydraulic support surface treatment equipment includes a feeding device 1, a suspended dry ice cleaning device, an air drying device, a suspended electrostatic spraying device, a curing device 6, a feeding device 7 arranged in a ring shape, and a lifting clamping and turning device 9 for transferring a workpiece 8 to be processed between the feeding device 1, the suspended dry ice cleaning device, the air drying device, the suspended electrostatic spraying device, the curing device 6, and the feeding device 7. The lifting clamping and turning device 9 is arranged on a ring-shaped hanging rail 10; the feeding device 1, the suspended dry ice cleaning device, the air drying device, the suspended electrostatic spraying device, the curing device 6, and the feeding device 7 each correspond to a lifting clamping and turning device 9.

[0059] Among them, the loading device 1 and the unloading device 7 are both intermittent belt conveyors; the lifting clamping and flipping device 9 includes a walking trolley 93 rollingly arranged at the bottom end of the circular hanging rail 10, a first-level lifting cylinder 94 fixed at the bottom end of the walking trolley 93, a mounting plate fixed at the bottom end of the first-level lifting cylinder 94, and a lifting workpiece 8 flipping assembly fixed on both sides of the mounting plate; a first infrared sensor is fixed at the center position of the bottom end of the mounting plate, and the first infrared sensor is electrically connected to the first-level lifting cylinder 94 and the loading device 1 through the controller.

[0060] The lifting and flipping assembly includes a secondary lifting cylinder 96 fixed on both sides of the mounting plate, a clamping cylinder 95 connected to the bottom output end of the secondary lifting cylinder 96, and a flipping drive motor 92 connected to the horizontal output end of the clamping cylinder 95, and the output shaft of the flipping drive motor 92 is connected to the clamping head 91; the two clamping heads 91 located on both sides of the mounting plate are arranged opposite to each other, and the opposite ends of the two clamping heads 91 are embedded with second infrared sensors, and the second infrared sensors are electrically connected to the secondary lifting cylinder 96, the clamping cylinder 95 and the flipping drive motor 92 through the controller.

[0061] The suspended dry ice cleaning device and the suspended electrostatic spraying device both include a suspension mechanism 2, which includes a support seat, a working platform 23 fixed above the support seat, and an air cushion 21 arranged between the working platform 23 and the support seat. The working platform 23 is provided with a plurality of blowing holes 24 arranged in an array, the blowing holes 24 are connected to the top of the air cushion 21 through a blowing pipe, and the bottom of the air cushion 21 is connected to the air outlet of the air compressor 22;

[0062] The air drying device comprises two air drying racks 4 arranged symmetrically about the workpiece 8 to be processed, a blowing port 41 is provided on one side of the air drying rack 4 facing the workpiece 8 to be processed, and a side of the air drying rack 4 facing away from the workpiece 8 to be processed is connected to a blower;

[0063] The curing device 6 includes ultraviolet lamps arranged on two symmetrical sides of the workpiece 8 to be processed.

[0064] A third infrared sensor 25 is embedded on the working platform 23 between two adjacent blowing holes 24. The third infrared sensor 25 is electrically connected to the solenoid valve arranged in the blowing pipe through the controller, that is, air is only ventilated into the blowing pipe within the coverage range of the workpiece, which is conducive to the concentration of gas and forms an airflow to float the workpiece.

[0065] The suspended dry ice cleaning device also includes a dry ice cleaning machine 3 arranged on one side of the suspension mechanism 2 of the suspended electrostatic spraying device. The dry ice cleaning machine 3 is connected to the transverse injection pipe 32 via a first flexible connecting pipe 33 and a spray gun 31. A first injection port is provided at the bottom end of the transverse injection pipe 32. The suspended electrostatic spraying device includes an electrostatic sprayer 5 arranged on one side of the suspension of the suspended electrostatic spraying device. The electrostatic sprayer 5 is connected to a vertical nozzle 51 via a second flexible connecting pipe 52. The vertical nozzle 51 is provided with a second injection port downward. Both the transverse injection pipe 32 and the vertical nozzle 51 are fixed to the output end of the three-axis mobile platform. The output end of the three-axis mobile platform is also embedded with a fourth infrared sensor. The fourth infrared sensor is electrically connected to the three-axis mobile platform. It should be noted that the three-axis mobile platform is a mature product on the market, and this embodiment has not improved it, so its structural principle will not be repeated here.

[0066] The feeding device 1, the suspended dry ice cleaning device, the air drying device, the suspended electrostatic spraying device, the curing device 6, and the unloading device 7 are all arranged inside the protective cover 11, and the protective cover 11 is provided with inlets and outlets aligned with the positions of the feeding device 1 and the unloading device 7; the dry ice cleaning machine 3 and the electrostatic spraying machine 5 are both arranged outside the protective cover 11, and the first flexible connecting pipe 33 and the second flexible connecting pipe 52 pass through the protective cover 11 and extend into the interior of the protective cover 11; a three-axis moving platform is fixed on the inner wall of the protective cover 11, and the three-axis moving platform can not only drive the horizontal injection pipe 32 and the vertical nozzle 51 to move along the surface of the workpiece 8, but also reset when the lifting clamping and flipping device 9 is in action, so as to avoid affecting the action of the lifting clamping and flipping device 9.

[0067] It should be noted that the above-mentioned electronic components are mature products on the market, and this application does not improve them, so their circuit connection structures and principles will not be described in detail here.

[0068] The working method of the hydraulic support surface treatment equipment comprises the following steps:

[0069] S1. Loading:

[0070] The feeding device 1 transfers the workpiece 8 to be processed to the inside of the protective cover 11 until it is directly below the lifting clamping and flipping device 9 corresponding to the feeding device 1. At this time, the first infrared sensor detects an in-position signal, the feeding device 1 stops running, the first-stage lifting cylinder 94 moves until the limit position, and the second-stage lifting cylinder 96 moves until the second infrared sensor is blocked by the workpiece 8 to be processed. At this time, the clamping head 91 is aligned with the horizontal position of the workpiece 8 to be processed, and the clamping cylinder 95 is opened. The clamping cylinder 95 drives the clamping head 91 to move toward the direction of the workpiece 8 to be processed until it is clamped, and the clamping drive cylinder is closed, and the walking trolley 93 drives the workpiece 8 to be processed to move toward the direction of the suspended dry ice cleaning device;

[0071] S2. Dry ice cleaning:

[0072] S21, cleaning the upper surface of the workpiece 8 to be processed:

[0073] The trolley 93 stops after traveling a set distance. At this time, the trolley 93 is located directly above the suspension mechanism 2 of the suspension dry ice cleaning device. At this time, the solenoid valve in the blocked range of the second infrared sensor is opened, and the air compressor 22 is used to blow the workpiece 8 to be processed upward until the gravity of the airflow is equal to the gravity of the workpiece 8 to be processed, and the clamping cylinder 95, the first-level lifting cylinder 94 and the second-level lifting cylinder 96 are all reset, and the three-axis moving platform is opened. The three-axis moving platform drives the horizontal injection pipe 32 to move until the fourth infrared sensor detects the workpiece 8 to be processed, and the dry ice cleaning machine 3 is turned on to spray granular dry ice onto the upper surface of the workpiece 8 to be processed. During the cleaning process, the three-axis moving platform drives the horizontal injection pipe 32 to move in an arc shape until the cleaning of the upper surface of the workpiece 8 to be processed is completed;

[0074] S21, cleaning the lower surface of the workpiece 8 to be processed:

[0075] The first-stage lifting cylinder 94 of the lifting clamping and flipping device 9 extends to the upper limit, and the second-stage lifting cylinder 96 moves until the second infrared sensor detects the workpiece 8 to be processed, and the clamping cylinder 95 moves to drive the clamping head 91 to clamp the two sides of the workpiece 8 to be processed, and the flipping drive motor 92 moves to drive the workpiece 8 to be processed to rotate vertically 180°. At this time, the lower surface of the workpiece 8 to be processed faces upward. After the lifting clamping and flipping device 9 is reset, the three-axis mobile platform is used to drive the horizontal spray pipe 32 to clean the lower surface of the workpiece 8 to be processed;

[0076] S3, air drying:

[0077] After cleaning, the first-stage lifting cylinder 94 and the second-stage lifting cylinder 96 of the lifting clamping and flipping device 9 work in sequence to clamp the two ends of the workpiece 8 to be processed, and the walking trolley 93 is used to drive the cleaned workpiece 8 to move toward the air-drying device until it enters the air-drying device, and the residue on the surface of the workpiece 8 is dried by the wind blown from the air-drying rack 4;

[0078] S4. Electrostatic spraying:

[0079] After air drying, the workpiece 8 is transferred to the suspended electrostatic spraying device by means of the walking trolley 93, the workpiece 8 is placed on the suspension mechanism 2 of the suspended electrostatic spraying device, and the lifting clamping and flipping device 9 is reset. The three-dimensional mobile platform 12 drives the vertical spray head 51 to move along the upper surface of the workpiece 8 in an arch shape. During the movement, the electrostatically charged paint output by the electrostatic sprayer 5 adheres to the upper surface of the workpiece 8. After the upper surface is sprayed, the lifting clamping and flipping device 9 drives the workpiece 8 to flip 180°, and the lower surface of the workpiece 8 is sprayed repeatedly.

[0080] S5. Curing:

[0081] The workpiece 8 is transported to the curing device 6 by means of the traveling trolley 93, and the workpiece 8 is cured by means of an ultraviolet lamp during the traveling process;

[0082] S6, unloading:

[0083] The workpiece 8 is transferred to the intermittent belt conveyor of the unloading device 7 by means of the traveling trolley 93, and the workpiece 8 is transported to the next process by means of the intermittent belt conveyor.

[0084] After unloading, the traveling trolley 93 returns to the loading device 1 along the annular hanging rail 10 to wait for the next loading, thereby completing the cycle.

[0085] Therefore, the present invention adopts the above-mentioned hydraulic support surface treatment equipment and its working method, and realizes comprehensive spraying and cleaning through the lifting clamping and flipping device in conjunction with the suspended dry ice cleaning device and the suspended electrostatic spraying device, without the need for subsequent repairs, thereby improving the surface treatment efficiency. At the same time, through the form of assembly line cycle operation, the surface treatment efficiency is further improved.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A hydraulic support surface treatment device, characterized in that: It includes a feeding device, a suspended dry ice cleaning device, an air drying device, a suspended electrostatic spraying device, a curing device, a feeding device, and a lifting and holding flipping device for transferring the workpiece to be processed between the feeding device, the suspended dry ice cleaning device, the air drying device, the suspended electrostatic spraying device, the curing device, and the feeding device, which are arranged in a ring shape. The lifting and holding flipping device is arranged on a ring-shaped hanging rail. The loading device, suspended dry ice cleaning device, air drying device, suspended electrostatic spraying device, curing device and unloading device all correspond to a lifting clamping and turning device.

2. The surface treatment equipment of a hydraulic support according to claim 1 is characterized in that: Both the loading device and the unloading device are intermittent belt conveyors; The lifting clamping and flipping device comprises a traveling trolley rollingly arranged at the bottom end of the annular hanging rail, a first-stage lifting cylinder fixed at the bottom end of the traveling trolley, a mounting plate fixed at the bottom end of the first-stage lifting cylinder, and a lifting workpiece flipping assembly fixed at both sides of the mounting plate; A first infrared sensor is fixed at the center position of the bottom end of the mounting plate, and the first infrared sensor is electrically connected to the first-stage lifting cylinder and the feeding device through the controller.

3. The surface treatment equipment of a hydraulic support according to claim 2 is characterized in that: The lifting and flipping assembly includes a secondary lifting cylinder fixed on both sides of the mounting plate, a clamping cylinder connected to the bottom output end of the secondary lifting cylinder, and a flipping drive motor connected to the horizontal output end of the clamping cylinder, and the output shaft of the flipping drive motor is connected to the clamping head; The two clamping heads on both sides of the mounting plate are arranged opposite to each other, and second infrared sensors are embedded in the opposite ends of the two clamping heads. The second infrared sensors are electrically connected to the secondary lifting cylinder, the clamping cylinder and the flip driving motor respectively through the controller.

4. The surface treatment equipment of a hydraulic support according to claim 3 is characterized in that: Both the suspended dry ice cleaning device and the suspended electrostatic spraying device include a suspension mechanism, which includes a support seat, a working platform fixed above the support seat, and an air cushion arranged between the working platform and the support seat. The working platform is provided with a plurality of blowing holes arranged in an array, the blowing holes are connected to the top of the air cushion through an air blowing pipe, and the bottom of the air cushion is connected to the air outlet of the air compressor; The air drying device comprises two air drying racks symmetrically arranged about the workpiece to be processed, a side of the air drying rack facing the workpiece to be processed is provided with an air blowing port, and a side of the air drying rack facing away from the workpiece to be processed is connected to a blower; The curing device comprises ultraviolet lamps arranged on two symmetrical sides of the workpiece to be processed.

5. The surface treatment equipment of a hydraulic support according to claim 4 is characterized in that: A third infrared sensor is embedded on the working platform between two adjacent air blowing holes, and the third infrared sensor is electrically connected to a solenoid valve arranged in the air blowing pipe via a controller.

6. The surface treatment equipment of a hydraulic support according to claim 5 is characterized in that: The suspended dry ice cleaning device also includes a dry ice cleaning machine arranged on one side of the suspended mechanism of the suspended electrostatic spraying device. The dry ice cleaning machine is connected to the transverse injection pipe through a first flexible connecting pipe and a spray gun. A first injection port is opened at the bottom end of the transverse injection pipe.

7. The surface treatment equipment of a hydraulic support according to claim 6 is characterized in that: The suspended electrostatic spraying device comprises an electrostatic sprayer arranged on one side of the suspended electrostatic spraying device, the electrostatic sprayer is connected with the vertical spray head through a second flexible connecting pipe, and the vertical spray head is downwardly provided with a second spray port.

8. The surface treatment equipment of a hydraulic support according to claim 7 is characterized in that: The horizontal spray pipe and the vertical spray head are both fixed to the output end of the three-axis mobile platform. The output end of the three-axis mobile platform is also embedded with a fourth infrared sensor, which is electrically connected to the three-axis mobile platform.

9. The surface treatment equipment of a hydraulic support according to claim 8, characterized in that: The loading device, suspended dry ice cleaning device, air drying device, suspended electrostatic spraying device, curing device, and unloading device are all arranged inside the protective cover, and inlet and outlet ports are provided on the protective cover and aligned with the positions of the loading device and the unloading device; The dry ice cleaning machine and the electrostatic spraying machine are both arranged outside the protective cover, and the first flexible connecting pipe and the second flexible connecting pipe pass through the protective cover and extend into the interior of the protective cover; A three-axis moving platform is fixed on the inner wall of the protective cover.

10. A working method of a hydraulic support surface treatment device as claimed in claim 9, characterized in that: The following steps are involved: S1. Loading: The loading device transfers the workpiece to be processed to the inside of the protective cover until it is directly below the lifting clamping and flipping device corresponding to the loading device. At this time, the first infrared sensor detects an in-position signal, the loading device stops running, the first-level lifting cylinder moves until it reaches the limit position, and the second-level lifting cylinder moves until the second infrared sensor is blocked by the workpiece to be processed. At this time, the clamping head is aligned with the horizontal position of the workpiece to be processed, the clamping cylinder is opened, and the clamping cylinder drives the clamping head to move toward the direction of the workpiece to be processed until it is clamped, the clamping drive cylinder is closed, and the walking trolley drives the workpiece to be processed to move toward the direction of the suspended dry ice cleaning device; S2. Dry ice cleaning: S21. Cleaning the upper surface of the workpiece to be processed: The trolley stops after traveling a set distance. At this time, the trolley is located directly above the suspension mechanism of the suspended dry ice cleaning device. At this time, the solenoid valve in the blocked range of the second infrared sensor is opened, and the workpiece to be processed is blown upward by the air compressor until the gravity of the airflow is equal to the gravity of the workpiece to be processed, the clamping cylinder, the first-level lifting cylinder and the second-level lifting cylinder are all reset, and the three-axis moving platform is turned on. The three-axis moving platform drives the horizontal injection pipe to move until the fourth infrared sensor detects the workpiece to be processed, and the dry ice cleaning machine is turned on to spray granular dry ice onto the upper surface of the workpiece to be processed. During the cleaning process, the three-axis moving platform drives the horizontal injection pipe to move in an arch shape until the cleaning of the upper surface of the workpiece to be processed is completed; S21. Clean the lower surface of the workpiece to be processed: The first-stage lifting cylinder of the lifting clamping and flipping device extends to the upper limit, and the second-stage lifting cylinder moves until the second infrared sensor detects the workpiece to be processed. The clamping cylinder moves to drive the clamping head to clamp the two sides of the workpiece to be processed, and the flipping drive motor moves to drive the workpiece to be processed to rotate vertically 180°. At this time, the lower surface of the workpiece to be processed faces upward. After the lifting clamping and flipping device is reset, the three-axis mobile platform is used to drive the horizontal spray pipe to clean the lower surface of the workpiece to be processed; S3, air drying: After cleaning, the first-stage lifting cylinder and the second-stage lifting cylinder of the lifting clamping and turning device work in sequence to clamp the two ends of the workpiece to be processed, and the walking trolley drives the cleaned workpiece to move toward the air-drying device until it enters the air-drying device, and the residue on the surface of the workpiece is dried by the air blown from the air-drying rack; S4. Electrostatic spraying: After air drying, the workpiece is transferred to the suspended electrostatic spraying device by means of a walking trolley. After the workpiece is placed on the suspension mechanism of the suspended electrostatic spraying device, the lifting clamping and flipping device is reset. The three-dimensional mobile platform drives the vertical spray head to move along the upper surface of the workpiece in an arch shape. During the movement, the electrostatically charged paint output from the electrostatic sprayer adheres to the upper surface of the workpiece. After the upper surface is sprayed, the lifting clamping and flipping device drives the workpiece to flip 180°, and the lower surface of the workpiece is sprayed repeatedly. S5. Curing: The workpiece is transported to the curing device by means of a traveling trolley, and the workpiece is cured by means of an ultraviolet lamp during the traveling process; S6, unloading: The workpiece is transferred to the intermittent belt conveyor of the unloading device by means of a traveling trolley, and the workpiece is transported to the next process by means of the intermittent belt conveyor.

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