Automatic material taking and placing method for thermal spraying of cookware

Abstract

The invention discloses an automatic taking and placing method for thermal spraying of cookware, and relates to an automatic taking and placing device for thermal spraying of cookware, which is arranged in a machine body of a thermal spraying assembly line of cookware, is positioned above a workbench of the assembly line, and is matched with a circulating transmission assembly in the assembly line to complete taking and placing. A hot coating room is arranged on one side of the machine body, and the automatic material taking and placing device comprises a material placing assembly and a material taking assembly which are arranged back to back to the hot coating room; in the working process, when the circulating conveying assembly passes through the position below the discharging assembly, the discharging assembly places a semi-finished pot in the circulating conveying assembly and conveys the semi-finished pot to a hot coating room for spraying, after spraying is completed, the circulating conveying assembly conveys the semi-finished pot to the taking assembly for taking, and continuous circulating operation is conducted in this way. The pot taking and placing device is installed in a pot thermal spraying assembly line and is designed in a targeted mode according to the characteristics of the placing form of pots in the assembly line, the materials of the pots, the existing temperature and the like, the taking and placing device is not affected by the materials, and the situation that the stacked pots are squeezed together and are difficult to take is avoided.

Description

[0001] This application is a divisional application of a Chinese patent application with the filing date of September 9, 2022, application number 2022111039245, and invention title "Automatic Loading and Unloading Device for Thermal Spraying of Cookware and Automatic Loading and Unloading Method for Cookware". Technical Field

[0002] The present invention belongs to the technical field of automatic loading and unloading on the production line, and particularly relates to an automatic loading and unloading device for a cookware thermal spraying production line and a method for automatically loading and unloading cookware in the thermal spraying production line. Background Art

[0003] Due to the characteristic that the outer shape of the cookware is a curved surface, it is difficult to design a suitable loading and unloading device in the processing production line. For example, the commonly used grasping method cannot be carried out on the cookware. And after the cookware is formed, multiple cookware are stacked together, and there is a certain vacuum between adjacent cookware. Therefore, extra force is required to take them down. And using negative pressure adsorption is not economical in terms of energy consumption due to this factor and the weight of the cookware itself. In addition, the bottom surface of the cookware after thermal spraying is still in a high-temperature state, and it is also impossible to directly adsorb with a suction cup.

[0004] Application Publication No. CN 112192438 A discloses a synchronous automatic loading and unloading device for a pot grinding machine, which uses a magnetic adsorption method. However, most of the current cookware materials are non-ferrous, and the applicable occasions of magnetic adsorption become limited. Therefore, the processing of cookware basically still adopts manual feeding and taking, resulting in high labor intensity of workers, low efficiency, and prone to safety accidents when operating high-speed rotating machine tools. Summary of the Invention

[0005] In view of the above problems, the present invention provides a low-energy automatic loading and unloading device applied to a cookware thermal spraying production line. This automatic loading and unloading device is designed based on the outer shape of the cookware and the structural characteristics after stacking together, and can replace manual loading and unloading to achieve low-energy and stable loading and unloading of cookware.

[0006] The invention object of the present invention is achieved through the following technical solutions: An automatic loading and unloading device for cookware thermal spraying is installed in the body of the cookware thermal spraying production line and above the workbench of the production line, and cooperates with the circulating transmission component in the production line to complete material taking and placing; one side of the body is a thermal spraying room. The automatic loading and unloading device includes a feeding component and a material taking component arranged opposite to the thermal spraying room; during operation, when the circulating transmission component passes below the feeding component, the feeding component places a semi-finished cookware into the circulating transmission component and transports it to the thermal spraying room for spraying. After completion, the circulating transmission component transports the semi-finished cookware to the material taking component for taking, and operates continuously in this cycle.

[0007] Preferably, the cyclic transmission assembly includes a cyclic revolving chain in the pipeline workbench, a guide rail forming a closed loop on the outer circle of the pipeline workbench, and a conveying tray with one end hinged to the cyclic revolving chain and the other end movably connected to the guide rail through a universal pulley; multiple conveying trays are arranged at intervals. The closed-loop guide rail provides a stable support for the conveying tray to increase the stability of its transmission.

[0008] Preferably, in the pipeline workbench, a guide groove for cooperating with material loading and material taking is provided between the cyclic revolving chain and the guide rail.

[0009] Preferably, the cyclic transmission assembly further includes a lifting table tightly and rotatably sleeved at the central position of the conveying tray; a ball component is arranged at the lower part of the lifting table, a circular top plate is fixedly arranged at the upper part, and a compression spring is sleeved above the ball component in the ball component; the upper end of the compression spring abuts against the lower surface of the conveying tray, and the lower end of the compression spring abuts against the upper edge of the seat body for installing the balls in the ball component. After the lifting table is connected to the conveying tray, the balls fall into the guide groove and always remain in the guide groove along with the circumferential movement of the conveying tray; the guide groove is provided with an upward feeding boss at the section located in the feeding component and an upward material taking boss at the section located in the material taking component. The setting of the boss in the guide groove is extremely simple, and it is very easy to adjust and replace both in height and length, so the required driving stroke can be ideally completed.

[0010] Preferably, the cyclic transmission assembly further includes a positioning die tightly and slidably sleeved on the outer periphery of the lifting table through a keyway. The positioning die is designed according to the characteristics of the rotating body of the pot, and when the pot is placed in the positioning die, it has the function of automatically centering.

[0011] Preferably, the lower surface of the positioning die is a plate surface, the middle part is hollow, and the upper part is a round hole larger than the diameter of the top plate; after the conveying tray, the lifting table, the positioning die, and the compression spring are assembled together, the outer surface size of the positioning die matches the semi-finished pot to be sprayed.

[0012] Preferably, the feeding component includes a table board horizontally fixed on the machine body, a cover hinged to the lower surface of the table board, and a power transmission part arranged at the hinge for opening and closing the cover; a passage hole for the semi-finished pot to pass through is provided at the center position of the table board and in the cover, and the feeding component further includes two groups of material dividing components diagonally arranged at the passage hole. The cover switches between the two functions of being used as a slideway or a parking platform by opening and closing, and the required functions are simply and reliably realized.

[0013] Preferably, the material dividing component includes two groups of lead screw transmission parts arranged at right angles, a driving motor providing power for the two groups of lead screw transmission parts at the same time, a lead screw nut respectively meshing with the lead screws in the lead screw transmission parts, and a separating block fixedly connected to the lead screw nut.

[0014] Preferably, long waist holes are provided in the platen below each separation block.

[0015] Preferably, bevel gears are installed at one ends of the lead screws of the two sets of lead screw transmission members that are close to each other, and a driving motor is installed with a matching bevel gear that meshes with the bevel gears on the two lead screws simultaneously.

[0016] Preferably, the separation block is an overall triangular block. A convex block that slidably cooperates with the long waist hole is fixedly connected below the triangular block. On one side of the triangular block facing the channel hole, a number of rotatable rollers are fixedly provided, the circumferences of which are parallel to the upper side and flush with the lower side of the triangular block. An opening member is also provided on the side with the smallest included angle of the triangular block.

[0017] Preferably, the cover is made of iron material, and an electromagnetic suction block is provided in the platen on the side away from the power transmission member. The electromagnetic suction block is a relatively convenient way to ensure closing, and other components in the prior art can also be used as substitutes.

[0018] Preferably, the material taking assembly is located upstream of the material placing assembly in the assembly line. The main structure includes a main body mounting frame that abuts against the machine body, a slide rail that abuts against and is vertically fixed in the main body mounting frame, a slide seat that slidably cooperates with the slide rail, a rotating shaft mounting seat fixed on the slide seat, two rotating shafts that are rotatably connected to the rotating shaft mounting seat at both ends respectively, two lifting rod members arranged at the ends of the two assembled rotating shafts, a lowering control member arranged below the rotating shaft mounting seat, and a lifting driving cylinder connected to the slide seat.

[0019] Preferably, a protective cover is also fixedly provided on the slide seat of the material taking assembly, and a conveyor belt is arranged at a preset height in front of the material taking assembly. Protrusions are arranged at intervals in the center of the conveyor belt.

[0020] Preferably, the rotating shaft includes an inner shaft core, an outer shaft sleeve, and a joint part therebetween. The joint part is cylindrical. Planes that are symmetrically cut off vertically with respect to the axis of the inner shaft core are provided above and below in this plane. A pin shaft mounting hole is provided in this plane, and an installation groove for installing a torsion spring is provided at the end of the cylinder; at least one positioning groove is provided in the outer shaft sleeve. After the rotating shaft is installed in the rotating shaft mounting seat, the outer shaft sleeve has a limiting flange facing outward. The design of the positioning groove is a preset adjustment method for cookware with different diameters.

[0021] Preferably, the lifting rod member includes a rod body, an installation plug-in for installing the rod body into the rotating shaft, and a reset torsion spring installed in the installation plug-in; one end of the rod body is a free end and the other end is a hinged installation part. The whole rod body is a round rod, and the upper part is a cut-off plane. The diameter of the rod body is larger than the size of the flanging of the semi-finished cookware. As little power source as possible is utilized for the moving parts, which saves energy and the number of operation failure points can be relatively small.

[0022] Preferably, after the lifting rod member and the rotating shaft are assembled by a pin shaft, one end of the reset torsion spring abuts against the installation groove, and the other end abuts against the installation plug-in member.

[0023] Preferably, the lowering control member includes hinge seats fixedly connected to the lower sides of both ends of the rotating shaft mounting seat, a Z-shaped support bent plate hinged to the hinge seats, a support spring on the inner side of the Z-shaped support bent plate, an adjusting member on the outer side of the Z-shaped support bent plate, a trigger inclined plate provided on one side of the Z-shaped support bent plate close to the support spring, and a flip start block installed at a preset height on the plate surface of the main body mounting frame and cooperating with the trigger inclined plate.

[0024] The present invention also provides an automatic pot placing and taking method for solving the above problems. The steps are as follows: S1. The conveying tray moves to the discharging boss. The lifting platform rises upward when the ball bearings abut against the boss. The top plate is in the state of receiving materials. The two driving motors of the discharging assembly are started synchronously. Each lead screw transmission member drives the separating block to move to one side synchronously. Each opening member lifts the second-to-last semi-finished pot upward synchronously and abuts against the upper edge of the flange of the bottommost semi-finished pot to keep it in place. The electromagnetic suction block is opened. The power transmission member slowly opens the cover. The single semi-finished pot at the bottom slides down along the slope of the cover to the top plate. The conveying tray advances. The top plate descends to complete the material receiving. The power transmission member then slowly closes the cover. The electromagnetic suction block is attracted. The driving motor drives each separating block back to the initial position; S2. The conveying tray moves to the thermal spraying room to complete thermal spraying; S3. The conveying tray moves to the area of the taking component, that is, the taking boss. The lifting platform rises upward when the ball bearings abut against the boss. After the bottom surface of the semi-finished pot is lifted upward by the top plate in the lifting platform, there is a separated distance between the edge of the semi-finished pot and the conveying tray. The lifting driving cylinder pushes the sliding seat to move downward along the slide rail. The rod body contacts the arc surface of the semi-finished pot. After overcoming the torsion force of the reset torsion spring under the external force, the rod body expands outward and finally moves beyond the semi-finished pot to the lower part of the pot. The sliding seat rises. The rod body lifts the pot and rises synchronously. When the rod body contacts the positioning die synchronously, it slowly returns to the initial position. After the sliding seat rises to the preset height, the trigger inclined plate abuts against the flip start block. The inclined surface of the trigger inclined plate is forced to fit with the flip start block. The Z-shaped support bent plate rotates accordingly. The support spring is compressed. The position of the adjusting member descends. Thus, the limiting flange follows and descends. The rotating shaft rotates. The rod body is inclined with the end downward. The semi-finished pot slides down to the conveyor belt under the protection of the protective cover and is conveyed to the next process.

[0025] In summary, the present invention has the following advantages compared with the prior art: The present invention is installed in a hot-spraying production line for cookware, and is specifically designed according to the shape characteristics of the cookware itself, the form in which the cookware is placed in the production line, the material of the cookware, the temperature present, and other characteristics. The pick-up and placement device utilizes the fact that the edges of the cookware still have a certain width of flanges and are stacked after the forming station is completed, and designs a material dividing member with diagonal edges as one group, so that triangular blocks equipped with rollers enter the position of the cookware flanges in two diagonal groups at the same time, thereby separating the bottom cookware. After completion, the triangular blocks retreat, and all the stacked cookware are put back on the original covers. Therefore, even if there are many stacked cookware, it will not affect the separation of only one cookware each time. If the cookware below is squeezed together by suction cups or magnets, there will be an erroneous operation of adsorbing multiple cookware at one time. The material picking component utilizes the state that the pot is buckled in the positioning mold after spraying, and performs a jacking action on the pot from below to obtain a space separating the pot and the conveying tray, and then uses the curved shape of the pot to design a lifting rod, which first descends from top to bottom and slides under the pot from this separated space. During the process of pressing down the lifting rod, the pot is in the positioning mold, so the pot can remain stable, and the lifting rod drives the pot to lift. During the lifting process, the lifting rod is gradually reset with the help of the resistance with the same curved positioning mold, thus ensuring the stability of the pot. After the pot is lifted to the preset position, the control component is lowered to make the front end of the lifting rod tilt downward, so that the pot can slide into the continuously running conveyor belt and be brought to the next workstation.

[0026] In summary, the two devices for taking and placing of the present invention are not affected by the material, and there is no need to worry about the stacked pots being squeezed together and difficult to take out. The high temperature of the assembly line spraying is also not affected. The structure is simple to manufacture, the power source is small, and the energy consumption is economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention installed in a production line; Figure 2 for Figure 1 A partial enlarged view of point B in the middle; Figure 3 for Figure 1 A partial enlarged view of the middle A; Figure 4 This is a structural schematic diagram of the present invention installed in a production line from another angle; Figure 5 for Figure 4 A partial enlarged view of point C in the middle; Figure 6 It is a structural schematic diagram of the material taking component; Figure 7 It is a schematic diagram of the structure in which the material discharging boss and the material taking boss are installed in the guide groove; Figure 8It is the overall structure diagram of the material taking component and the exploded view of some parts; Figure 9 It is the exploded view of some parts of the material taking component; Figure 10 It is the structural schematic diagram of the material placing component; Figure 11 It is the structural schematic diagram of the material distributing component; Figure 12 It is Figure 8 The partial enlarged view at position D in; Figure 13 It is Figure 2 The partial enlarged view at position E in.

[0028] Markings in the figure: semi-finished cookware 01, machine body 10, top plate 341, material placing boss 51, material taking boss 61, assembly line workbench 20, circulating transmission component 30, circulating rotating chain 31, guide rail 32, guide groove 21, conveying tray 33, lifting platform 34, positioning die 35, hot coating room 40, material placing component 50, material taking component 60, table board 52, cover 53, power transmission part 54, material distributing component 55, screw rod transmission part 551, driving motor 552, screw rod nut 553, separating block 554, channel hole 03, long waist hole 02, opening part 05, electromagnetic suction block 06, main body mounting frame 62, slide rail 63, slide seat 64, rotating shaft mounting seat 65, rotating shaft 66, inner shaft core 661, outer shaft sleeve 662, joint part 663, pin shaft mounting hole 664, mounting groove 665, limiting flange 666, lifting rod component 67, rod body 671, mounting plug-in 672, reset torsion spring 673, lowering control component 68, lifting driving cylinder 69, protective cover 60a, conveyor belt 60b, hinge seat 681, Z-shaped support bent plate 682, support spring 683, adjusting part 684, trigger inclined plate 685, flipping starting block 686. Specific embodiments

[0029] The present invention will be further described below in conjunction with the embodiments shown in the drawings: Embodiment 1 As Figure 1-2 shown, a kind of automatic material taking and placing device for hot spraying of cookware is installed in the machine body 10 of the cookware hot spraying assembly line and is located above the assembly line workbench 20, and cooperates with the circulating transmission component 30 in the assembly line to complete material taking and placing; one side of the machine body 10 is the hot coating room 40, and the automatic material taking and placing device includes a material placing component 50 and a material taking component 60 arranged opposite to the hot coating room 40; during work, when the circulating transmission component 30 passes below the material placing component 50, the material placing component 50 places a semi-finished cookware 01 into the circulating transmission component 30 and transports it to the hot coating room 40 for spraying. After completion, the circulating transmission component 30 transports the semi-finished cookware 01 to the material taking component 60 for taking, and operates continuously in this cycle.

[0030] As Figure 2-7 shown, the cyclic transmission assembly 30 includes a cyclic revolving chain 31 in the pipeline workbench 20, a guide rail 32 forming a closed loop on the outer circle of the pipeline workbench 20, and a conveying tray 33 with one end hinged to the cyclic revolving chain 31 and the other end movably connected to the guide rail 32 through a universal pulley; a plurality of conveying trays 33 are arranged at intervals. After the conveying trays 33 are installed, they are driven by the cyclic revolving chain 31.

[0031] In the pipeline workbench 20, a guide groove 21 for cooperating with material feeding and material taking is provided between the cyclic revolving chain 31 and the guide rail 32; The cyclic transmission assembly 30 further includes a lifting table 34 tightly and rotatably sleeved at the central position of the conveying tray 33; a ball component is provided at the lower part of the lifting table 34, and a circular top plate 341 is fixedly arranged at the upper part. A compression spring is sleeved above the ball component; the upper end of the compression spring abuts against the lower surface of the conveying tray 33, and the lower end of the compression spring abuts against the upper edge of the seat body for installing the balls in the ball component. After the lifting table 34 is connected to the conveying tray 33, the balls fall into the guide groove 21 and always remain in the guide groove 21 along with the circumferential movement of the conveying tray 33; an upward feeding boss 51 is provided on a section of the guide groove 21 located at the feeding component 50, and an upward material taking boss 61 is provided on a section of the guide groove 21 located at the material taking component 60. The feeding boss 51 and the material taking boss 61 are respectively used for cooperating with material taking and feeding. The cyclic transmission assembly 30 further includes a positioning die 35 tightly and vertically slidably sleeved on the outer periphery of the lifting table 34 through a key groove; The lower surface of the positioning die 35 is a plate surface, the middle part is hollow, and the upper part is a circular hole larger than the diameter of the top plate 341; After the conveying tray 33, the lifting table 34, the positioning die 35, and the compression spring are assembled together, the outer surface size of the positioning die 35 matches the semi-finished pot 01 to be sprayed, that is, the semi-finished pot 01 abuts against and covers the upper surface of the positioning die 35. When the conveying tray 33 moves to the corresponding boss, the compression spring is compressed. When the conveying tray 33 moves to the feeding boss 51 and the material taking boss 61, the heights set by the bosses at these two positions will cause the top plate 341 to rise higher than the bottom surface of the semi-finished pot 01. That is, when reaching the position of the feeding boss 51, the top plate 341 rises to be able to receive materials at a short distance. When reaching the position of the material taking boss 61, the semi-finished pot 01 can be lifted to a certain height to facilitate discharging. As Figure 10 shown, the feeding component 50 includes a table board 52 horizontally fixed on the machine body 10, a cover 53 hinged to the lower surface of the table board 52, and a power transmission part 54 provided at the hinge for opening and closing the cover 53; In the platform 52, there is a passage hole 03 located at the center of the cover 53 for the semi-finished cookware 01 to pass through, and the material discharging assembly 50 also includes two groups of material discharging components 55 arranged diagonally at the passage hole; The material separation member 55 includes two groups of screw transmission members 551 set at right angles, a driving motor 552 that provides power to the two groups of screw transmission members 551, screw nuts 553 that respectively mesh with the screws in the screw transmission members 551, and a separation block 554 that is fixedly connected to the screw nuts 553; In the table 52, corresponding to the bottom of each separation block 554, a long waist hole 02 is provided to limit the movement of the separation block 554; The ends of the screws of the two sets of screw transmission members 551 that are close to each other are equipped with bevel gears, and the driving motor 552 is equipped with matching bevel gears that mesh with the bevel gears on the two screws at the same time to achieve synchronous power transmission; The separation block 554 is a triangular block as a whole, and a convex block that slides with the long waist hole 02 is fixedly connected to the bottom of the triangular block. A plurality of self-rotating rollers 04 whose circumferences are parallel to the upper side of the triangular block and flush with the lower side are fixedly provided on the side of the triangular block facing the channel hole 03, and an opening piece 05 is also provided on the side with the smallest angle of the triangular block. The cover 53 is made of iron material. An electromagnetic suction block 06 is provided on the side of the table 52 away from the power transmission member 54. Under normal conditions, the cover 53 is sucked by the electromagnetic suction block 06 to bear the weight of all the pots stacked together. The electromagnetic suction block suction method can be replaced by any supporting mechanism in the prior art. refer to Figure 1 , Figure 4 , Figure 10 , Figure 11, when the feeding assembly 50 is working, the conveying tray 33 enters above the feeding boss 51, the lifting table 34 rises, the top plate 341 rises upward, two drive motors 552 are started synchronously, and each screw transmission member 551 drives the separation block 554 to move to one side synchronously. Here, two points need to be preset in advance: 1. The circumferences of the respective rollers 04 can contact the flanging of the semi-finished cookware 01; 2. The starting positions of the respective separation blocks 554 are the same; that is, the respective separation blocks 554 are initially relatively far from the semi-finished cookware 01. As the drive motor 552 starts, the respective separation blocks 554 approach the semi-finished cookware 01 synchronously. As the movement continues, the respective opening members 05 synchronously lift the penultimate semi-finished cookware 01 upward and abut against the upper edge of the flanging of the lowermost semi-finished cookware 01 to keep it in place. In this way, all the cookware from the penultimate semi-finished cookware 01 upward is lifted. At this time, the electromagnetic suction block 06 is opened, and the power transmission member 54 slowly opens the cover 53. The single semi-finished cookware 01 that has fallen below slides down along the slope of the cover 53 into the top plate 341. The conveying tray 33 advances, the top plate 341 descends, and this semi-finished cookware 01 can smoothly enter the positioning die 35, thus completing the material receiving. Then the power transmission member 54 slowly closes the cover 53, the electromagnetic suction block 06 is attracted, and the drive motor 552 drives the respective separation blocks 554 back to the initial position. In this way, all the semi-finished cookware 01 returns to the original position and waits for the next feeding.

[0032] The material taking assembly 60 is located upstream of the feeding assembly 50 in the production line so that after the conveying tray 33 completes material taking, it then travels to the feeding assembly 50 to start a new round of operations. Its main structure includes a main body mounting frame 62 that abuts against the machine body 10, a slide rail 63 that abuts against and is vertically fixed in the main body mounting frame 62, a slide seat 64 that is slidably engaged with the slide rail, a rotating shaft mounting seat 65 fixed on the slide seat 64, two rotating shafts 66 that are respectively rotatably connected to the rotating shaft mounting seat at both ends of the rotating shaft mounting seat 65, two lifting rod members 67 provided at the assembled ends of the two rotating shafts 66, a lowering control member 68 provided below the rotating shaft mounting seat 65, and a lifting drive cylinder 69 connected to the slide seat 64; when static, the slide seat 64 is at a high position. When working, the lifting drive cylinder 69 pushes the slide seat 64 to move downward along the slide rail 63. After the rod part of the lifting rod member 67 contacts the arc surface of the semi-finished cookware 01, its rod part can respectively expand outward and finally cross over the semi-finished cookware 01 to reach below the cookware, and then the rod part returns to the initial position. At this time, the slide seat 64 rises, that is, the semi-finished cookware 01 is lifted. After the semi-finished cookware 01 is lifted to a preset height, the lowering control member 68 causes the two rotating shafts 66 to rotate downward synchronously, and the free ends of the rod parts of the lifting rod members 67 also descend accordingly, forming an inclination as a whole, and the semi-finished cookware 01 slides out along the rod part under the action of the inclination.

[0033] To prevent the semi-finished cookware 01 from deviating in position during the process of slipping out, a protective cover 60a is fixedly arranged on the sliding seat 64 of the material taking assembly 60. At the same time, a conveyor belt 60b is arranged at a preset height to cooperate with material receiving. The conveyor belt 60b is provided with bumps at intervals in the center. In this way, the bumps can come into contact with the inner wall of the semi-finished cookware 01 during the operation of the conveyor belt 60b, achieving the purpose of dragging.

[0034] Figure 9 As shown, the rotating shaft 66 includes an inner shaft core 661, an outer shaft sleeve 662 and a joint part 663 between the two. The joint part 663 is cylindrical. The cylindrical shape is symmetrically cut in the vertical direction and up and down with respect to the axis of the axis core 661. A pin shaft installation hole 664 is arranged in this plane, and an installation groove 665 for installing a torsion spring is arranged at the end of the cylindrical shape; at least one positioning groove is arranged in the outer shaft sleeve 662. When the rotating shaft 66 is installed in the rotating shaft installation seat 65, the positioning groove is used to limit the distance between the two rotating shafts 66; after the rotating shaft 66 is installed in the rotating shaft installation seat 65, the outer shaft sleeve 662 has a limiting flanging 666 facing the outside; The lifting rod member 67 includes a rod body 671, an installation plug-in 672 for installing the rod body 671 on the rotating shaft 66, and a return torsion spring 673 installed in the installation plug-in 672 to provide an elastic force; one end of the rod body 671 is a free end and the other end is a hinged installation part. The whole rod body 671 is a round rod, and the upper part is a cut plane. The purpose is to have better contact stability of the plane when lifting the cookware. The diameter of the rod body 671 is larger than the size of the flange of the semi-finished cookware 01. So that when the rod body 671 falls and slides over the arc-shaped outer wall of the semi-finished cookware 01 to the flange position, the peripheral surface of the rod body 671 can directly cross the plane of the flange, that is, the peripheral surface of the rod body 671 directly touches the edge of the flange, so that the rod body 671 can fall smoothly; After the lifting rod member 67 and the rotating shaft 66 are assembled and installed through a pin shaft, refer to Figure 13 As shown, one end of the return torsion spring 673 abuts against the installation groove 665, and the other end abuts against the installation plug-in 672. Under normal conditions, the return torsion spring 673 pushes the installation plug-in 672 together with the rod body 671 perpendicular to the plate surface of the main body mounting frame 62, that is, the rod body 671 can expand outwards after overcoming the torsion force of the return torsion spring 673 under an external force, and returns to the original position after the external force is eliminated; Refer to Figure 3 、 Figure 8 and Figure 12As shown in the figure, the lowering control member 68 includes hinge seats 681 fixedly connected to the lower sides of both ends of the rotating shaft mounting base 65, a Z-shaped support bent plate 682 hinged to the hinge seats 681, a support spring 683 on the inner side of the Z-shaped support bent plate 682, and an adjusting member 684 on the outer side of the Z-shaped support bent plate 682; under normal conditions, the adjusting member 684 abuts against the limiting flange 666, and the support spring 683 provides support for the rotating shaft 66, that is, the rod body 671 connected to the rotating shaft 66 is supported and the supporting force is sufficient to lift the cookware; Figure 12 As shown in the figure, a trigger inclined plate 685 is provided on one side of the Z-shaped support bent plate 682 close to the support spring 683, and a flip start block 686 is installed at a preset height on the plate surface of the main body mounting frame 62 and cooperates with the trigger inclined plate 685; during operation, the rod body 671 carrying the semi-finished cookware 01 moves upward. When the trigger inclined plate 685 abuts against the flip start block 686, the inclined surface of the trigger inclined plate 685 is forced to fit with the flip start block 686, and the Z-shaped support bent plate 682 rotates accordingly, the support spring 683 is compressed, and the position of the adjusting member 684 drops. Thus, the limiting flange 666 drops accordingly, the rotating shaft 66 rotates, the rod body 671 is inclined with the end downward, and the semi-finished cookware 01 slides down; Overall operation process: S1. The conveying tray 33 moves to the feeding boss 51, the lifting platform 34 rises when the balls abut against the boss, the top plate 341 is in the state of receiving materials, the two driving motors 552 of the feeding assembly 50 are started synchronously, each screw driving member 551 drives the separating block 554 to move to one side synchronously, and each opening member 05 lifts the penultimate semi-finished cookware 01 upward synchronously and abuts against the upper edge of the flange of the lowermost semi-finished cookware 01 to keep it in place. In this way, all the cookware from the penultimate semi-finished cookware 01 upward is lifted. At this time, the electromagnetic suction block 06 is opened, and the power transmission member 54 slowly opens the cover 53. The single semi-finished cookware 01 at the bottom slides down along the slope of the cover 53 into the top plate 341. The conveying tray 33 advances, the top plate 341 descends, and this semi-finished cookware 01 can smoothly enter the positioning die 35, thus completing the material receiving. Then the power transmission member 54 slowly closes the cover 53, the electromagnetic suction block 06 is attracted, and the driving motor 552 drives each separating block 554 back to the initial position. In this way, all the semi-finished cookware 01 returns to the original position waiting for the next feeding. Due to the setting of the positioning die 35, even if the semi-finished cookware 01 is inclined, it will first contact the positioning die 35 and will not slide out of the range outside the positioning die 35; S2. The conveying tray 33 moves into the thermal spraying room 40 to complete thermal spraying; S3, the conveying tray 33 moves to the area of ​​the material taking component 60, that is, the material taking boss 61, the ball bearing and the boss collide and the lifting platform 34 rises upward, and the front of the bottom of the semi-finished pot 01 is lifted upward by the top plate 341 in the lifting platform 34. The edge of the semi-finished pot 01 is separated from the conveying tray 33 by a distance, and the lifting drive cylinder 69 pushes the slide 64 to move downward along the slide rail 63, and the rod 671 contacts the arc surface of the semi-finished pot 01. Under the external force, the rod 671 overcomes the torsion of the reset torsion spring 673 and expands outward, and finally passes over the semi-finished pot 01 and comes under the pot, the slide 64 rises, and the rod 671 lifts the pot synchronously, and the synchronous rod 671 slowly returns to the initial position under the contact with the positioning mold 35. The positioning mold 35 eliminates the unstable factor of the rapid rebound of the rod body 671. After the slide 64 rises to the preset height, the trigger inclined plate 685 conflicts with the flip start block 686. The inclined surface of the trigger inclined plate 685 is forced to fit the flip start block 686, and the Z-shaped support bent plate 682 rotates accordingly. The support spring 683 is compressed, and the position of the adjustment member 684 decreases. As a result, the limit flange 666 follows the decrease, the rotating shaft 66 rotates, and the rod body 671 is tilted downward at the end. The semi-finished pot 01 slides down to the conveyor belt 60b under the protection of the protective cover 60a and is transmitted to the next process.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic pick - and - place method for thermal spraying of cookware, characterized in that, Use a pot heat spraying automatic loading and unloading device, which is installed in the body (10) of the pot heat spraying production line and above the production line workbench (20), and cooperates with the circulating transmission component (30) in the production line to complete material taking and placing; one side of the body (10) is a heat coating room (40), and it is characterized in that the automatic loading and unloading device includes a discharging component (50) and a material taking component (60) arranged back to back with the heat coating room (40); during operation, when the circulating transmission component (30) passes below the discharging component (50), the discharging component (50) places a semi-finished pot (01) in the circulating transmission component (30) and transports it to the heat coating room (40) for spraying. After completion, the circulating transmission component (30) transports the semi-finished pot (01) to the material taking component (60) for picking up, and operates continuously in this cycle; The circulating transmission component (30) includes a circulating rotating chain (31) in the production line workbench (20), a guide rail (32) forming a closed loop on the outer circle of the production line workbench (20), and a conveying tray (33) with one end hinged to the circulating rotating chain (31) and the other end movably connected to the guide rail (32) by setting universal pulleys; a plurality of conveying trays (33) are arranged at intervals; In the production line workbench (20), a guide groove (21) for cooperating with material discharging and taking is provided between the circulating rotating chain (31) and the guide rail (32); The circulating transmission component (30) further includes a lifting platform (34) tightly and rotatably sleeved at the central position of the conveying tray (33); a ball component is provided at the lower part of the lifting platform (34), and a circular top plate (341) is fixedly arranged at the upper part. A compression spring is sleeved above the ball component; the upper end of the compression spring abuts against the lower surface of the conveying tray (33), and the lower end of the compression spring abuts against the upper edge of the seat body for installing the balls in the ball component. After the lifting platform (34) is connected to the conveying tray (33), the balls fall into the guide groove (21) and always remain in the guide groove (21) with the circumferential movement of the conveying tray (33); the guide groove (21) is provided with an upward discharging boss (51) at a section located at the discharging component (50) and an upward material taking boss (61) at a section located at the material taking component (60); The steps of the automatic loading and unloading method are as follows: S1. The conveying tray (33) moves to the blanking boss (51). When the ball bearings contact the boss, the lifting table (34) rises upward. The top plate (341) is in the state of receiving materials. The two driving motors (552) of the blanking assembly (50) are started synchronously. Each screw drive member (551) drives the separation block (554) to move to one side synchronously. Each opening member (05) lifts the penultimate semi-finished cookware (01) upward synchronously and abuts against the upper edge of the flange of the lowermost semi-finished cookware (01) to keep it in place. The electromagnetic suction block (06) is opened. The power transmission member (54) slowly opens the cover (53). The single semi-finished cookware (01) that has fallen down slides down along the slope of the cover (53) into the top plate (341) by chance. The conveying tray (33) advances. The top plate (341) descends to complete the material receiving. The power transmission member (54) then slowly closes the cover (53). The electromagnetic suction block (06) is attracted. The driving motor (552) drives each separation block (554) back to the initial position; S2. The conveying tray (33) moves into the hot spraying room (40) to complete hot spraying; S3. The conveying tray (33) moves to the area of the material taking assembly (60), that is, to the material taking boss (61). When the ball bearings contact the boss, the lifting table (34) rises upward. After the front side of the bottom of the semi-finished cookware (01) is lifted upward by the top plate (341) in the lifting table (34), there is a separated distance between the edge of the semi-finished cookware (01) and the conveying tray (33). The lifting driving cylinder (69) pushes the sliding seat (64) to move downward along the slide rail (63). The rod body (671) contacts the arc surface of the semi-finished cookware (01). After the rod body (671) overcomes the torsion of the return torsion spring (673) under an external force, it expands outward and finally passes over the semi-finished cookware (01) to reach below the cookware. The sliding seat (64) rises. The rod body (671) lifts the cookware and rises synchronously. When the synchronous rod body (671) contacts the positioning die (35), it slowly returns to the initial position. After the sliding seat (64) rises to the preset height, it triggers the inclined plate (685) to contact the flipping starting block (686). The inclined surface of the triggered inclined plate (685) is forced to fit with the flipping starting block (686). The Z-shaped support bent plate (682) rotates accordingly. The support spring (683) is compressed. The adjusting member (684) descends in position. Thus, the limiting flange (666) follows and descends. The rotating shaft (66) rotates. The rod body (671) is inclined with the end downward. The semi-finished cookware (01) slides down into the conveyor belt (60b) under the protection of the protective cover (60a) and is conveyed to the next process.

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