Intelligent electricity meter automated production line

Abstract

The present invention discloses an intelligent electricity meter automated production line, which includes a production line workbench. Columns are welded at the four corners of the upper end surface of the production line workbench. A top table is horizontally arranged at the upper ends of the four groups of columns. The front end of the production line workbench is connected to a first conveyor. The first belt on the first conveyor extends towards the upper table surface of the production line workbench. A number of tooling positions are equidistantly arranged on the first belt. The tooling positions are used for vertically placing intelligent electricity meter workpieces. An outer support seat is arranged at the center position of the lower end surface of the production line workbench. For the intelligent electricity meter automated production line of the present invention, the flexible coating die makes a lifting movement driven by a sprocket structure. When it descends, it covers the outside of the workpiece for applying protective paint. When it ascends, it is located inside the outer support seat. At this time, the centrifugal feeder is located inside the flexible coating die, and it can supply materials to the flexible coating die. It is applicable to different working conditions and brings a better application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of smart meter production, and particularly to an automated production line for smart meters. Background Art

[0002] A smart meter is one of the basic devices for data collection in a smart grid (especially a smart distribution network), undertaking the tasks of collecting, measuring, and transmitting original electric energy data, and serving as the basis for information integration, analysis optimization, and information display. In addition to the basic power consumption measurement function of a traditional electric energy meter, in order to adapt to the smart grid and the use of new energy, a smart meter also has intelligent functions such as two-way multi-rate metering function, user-side control function, two-way data communication function with multiple data transmission modes, and anti-stealing electricity function.

[0003] The conventional production process of existing smart meters includes shell injection molding, PCBA assembly, manual insertion, ICT detection, PSU detection, display installation, film pasting and packaging. Generally, the outer shell of a smart meter is made of a plastic shell with insulating properties, but the insulation of the plastic shell is only limited to the shell body. Our factory found that similar products on the market have varying degrees of electric leakage during the detection of the electric leakage performance of smart meters. The leakage locations occur at positions such as the shell body, grooves, screws, screw groove gaps, button keys, and heat dissipation holes. Therefore, in order to enhance the insulation and fire resistance of existing smart meters, our factory coats a layer of protective paint on the entire outer side of the smart meter to strengthen the safety performance of the smart meter, and is equipped with an automated production line to solve the technical problems of uneven manual coating of the protective paint and low efficiency caused by the uneven surface of the outer shell. For this reason, we propose an automated production line for smart meters. Summary of the Invention

[0004] The main purpose of the present invention is to provide an automated production line for smart meters, which can effectively solve the problems of uneven manual coating and low efficiency in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] Intelligent electricity meter automated production line, including a production line workbench. Columns are welded at the four corners of the upper end surface of the production line workbench. A top table is horizontally arranged at the upper ends of the four groups of columns. The front end of the production line workbench is connected to a first conveyor. The first belt on the first conveyor extends towards the upper surface of the production line workbench. A number of tooling positions are equidistantly arranged on the first belt. The tooling positions are used for vertically placing intelligent electricity meter workpieces. An outer support seat is arranged at the central position of the lower end surface of the production line workbench. A flexible coating mold is arranged inside the outer support seat. The flexible coating mold is used to apply protective paint to the peripheral surfaces of the intelligent electricity meter workpieces to form a protective film. The protective paint is a fireproof and insulating paint, having fireproof and insulating properties. The rear end of the production line workbench is connected to a second conveyor. A heating box is fixedly arranged at the front end position of the second conveyor. The heating box is used to heat the intelligent electricity meter workpieces and air-dry the protective paint applied on their surfaces.

[0007] Preferably, the upper end surface of the outer support seat is riveted to the lower end surface of the top table through two ear pieces. A partition seat is vertically and fixedly arranged inside the outer support seat. Rotating rods are installed at the upper and lower ends of the partition seat through bearing seats. A driving motor is installed at one end of one of the rotating rods. Two groups of sprockets are sleeved at corresponding positions on the two rotating rods. The sprockets at the upper and lower relative positions are connected by a chain. Limiting grooves for the chain to extend into are longitudinally opened on the front and rear surfaces of the partition seat.

[0008] Preferably, the flexible coating mold includes a connecting block, a mold shell, a mold prefabricated groove, and a wall-attached airbag combination. The back of the mold shell is welded to the two chains through two connecting blocks respectively near the upper end part. The connecting blocks extend into the limiting grooves for limiting lifting. Inside the mold shell, a mold prefabricated groove is opened according to the size and specifications of the intelligent electricity meter workpiece. The size and specifications of the mold prefabricated groove are slightly larger than the intelligent electricity meter workpiece itself, so as to reserve a coating space for the wall-attached airbag combination.

[0009] Preferably, the wall-attached airbag combination includes four wall-attached thin airbags, which are respectively attached to the four surfaces of the mold prefabricated groove. The four wall-attached thin airbags are communicated with each other, and a curved chamfer is formed at the connection. The back of the wall-attached airbag combination is completely flatly glued to the groove wall of the mold prefabricated groove. A printing cloth layer is added to the front of the wall-attached airbag combination for directly printing the protective paint on the outer surface of the intelligent electricity meter workpiece. An empty groove is opened in the middle of one of the four wall-attached thin airbags, corresponding to the position of the display screen of the intelligent electricity meter workpiece, so as to avoid the display screen from being smeared.

[0010] Preferably, a first air pipe and a second air pipe are connected to the upper end surface of the wall-attached airbag combination. The first air pipe extends upward and is connected to the air outlet joint of the first air storage tank. A first air valve is installed at the air outlet joint. The first air storage tank is located on the upper end surface of the top platform. The second air pipe extends upward and communicates with the air inlet of the first compressor. The first compressor is located at the bottom of the first air storage tank to compress the air in the first air storage tank.

[0011] Preferably, a rotary motor is installed inside the middle position of the top platform. The output shaft of the rotary motor extends downward out of the top platform. The output shaft is connected to a centrifugal rotating shaft through a coupling. A centrifugal feeder is embedded on the outer shaft surface of the centrifugal rotating shaft. The centrifugal feeder performs a centrifugal motion to feed the printing and dyeing fabric layer on the wall-attached airbag combination.

[0012] Preferably, the centrifugal feeder includes an outer connection seat, an installation groove, a paint box, a sponge dipping rod, a curved baffle, a rolling brush, a root part, a plain bearing, and bristles. An installation groove is formed on the outer side surface of the outer connection seat. A paint box is fixed at the deep part inside the installation groove. A sponge dipping rod is installed on one side of the paint box. The sponge dipping rod is in full contact with the protective paint in the paint box. The sponge dipping rod includes a curved baffle for blocking to prevent the protective paint from overflowing.

[0013] Preferably, a rolling brush is arranged at a position closer to the outside in the installation groove. The upper and lower root parts of the rolling brush are respectively located inside the plain bearings. The plain bearings are fixed on the installation groove. One-third of the rolling brush is located outside the installation groove. The outer surface of the rolling brush is evenly and densely distributed with bristles. One side surface of the sponge dipping rod is in contact with the rolling brush, and they have the same length for uniform feeding.

[0014] Preferably, a drying groove is formed in the middle part of the heating box and at the horizontal position of the first belt. The two sides of the drying groove include an inlet and an outlet. Electric sealing doors are installed at the inlet and the outlet. The drying groove is used to place the smart meter workpiece. Air holes are evenly formed in the upper and lower groove walls of the drying groove, and the air holes are distributed in a rectangular shape around the outer side surface of the smart meter workpiece.

[0015] Preferably, a transition chamber is arranged at the upper end of the heating box and located above the drying groove. A second air storage tank is fixedly installed on the top of the heating box. The air supply pipe at the lower end of the second air storage tank extends into the transition chamber. A third air valve is installed on the air supply pipe. A heating device is included in the second air storage tank. A second compressor is also included at the top of the second air storage tank. Air extraction pumps are symmetrically installed on the outer sides of the two sides of the transition chamber. The air inlet on the air extraction pump is connected to a return pipe. A funnel-shaped air collection tank is arranged at the lower end of the drying groove. An activated carbon deodorizer is installed in the middle of the funnel-shaped air collection tank. The return pipe extends downward and communicates with the bottom of the funnel-shaped air collection tank to form a continuous circulation of hot air.

[0016] Preferably, a second conveyor belt is provided on the second conveyor, and the outlet of the drying tank is connected to the second conveyor belt, and the second conveyor belt transports the smart meter workpiece to the film pasting work area.

[0017] The present invention provides an automated production line for smart meters by improvement. Compared with the prior art, it has the following significant improvements and advantages:

[0018] (1) Design a flexible coating mold, the external shape of which is prefabricated to be similar to the workpiece. By opening the first air valve, the air released from the first air storage tank enters downward from the first air pipe into the wall-attached airbag combination. The four groups of thin wall-attached airbags bulge instantly, and then fit around the outside of the smart meter workpiece from four sides respectively. Because the airbags are flexible, they can cover the irregular surfaces, so that the positions such as the grooves, screws, screw groove gaps, heat dissipation holes, etc. on the surface of the smart meter workpiece can be fitted. The printing cloth layer on the surface of the thin wall-attached airbag carries the protective paint. Therefore, through the fitting contact, each position around the smart meter workpiece can be coated with the protective paint, and finally a protective film is formed, improving the work efficiency.

[0019] (2) The flexible coating mold makes a lifting movement driven by the sprocket structure. When it descends, it covers the outside of the workpiece for protective paint coating. When it rises, it is located inside the outer support seat. At this time, the centrifugal feeder is located inside the flexible coating mold, and it can supply materials to the flexible coating mold.

[0020] (3) Design a centrifugal feeder. When the content of the protective paint on the surface of the wall-attached airbag combination is insufficient, the centrifugal rotating shaft drives the centrifugal feeder to make a circular motion. The rolling brush on the centrifugal feeder contacts the wall-attached airbag combination, and evenly transfers its own protective paint to the printing cloth layer of the wall-attached airbag combination by using a number of bristles. The rolling brush is always in a rolling state, so as to reduce the resistance during the circular motion. Since the centrifugal feeder makes a centrifugal motion, the protective paint on the sponge dipping rod has a movement trend of accelerating outward transfer, so a more effective feeding effect is achieved.

[0021] (4) Design a heating box, which always blows air from above the drying tank, so as to achieve the purpose of evenly drying each surface of the workpiece. And a circulation pipeline is formed in the heating box to reuse the heat. When passing through the activated carbon deodorizer, the activated carbon uses a porous solid adsorbent to treat the gaseous pollutants in the protective paint, so that one or several components stay on the surface of the solid adsorbent, achieving the deodorizing effect. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the automated production line for smart meters of the present invention;

[0023] Figure 2 It is a diagram showing the installation position of the outer support seat of the present invention;

[0024] Figure 3 is the specific structure diagram of the partition seat of the present invention;

[0025] Figure 4 is the connection view of the partition seat and the flexible coating mold of the present invention;

[0026] Figure 5 is the specific structure diagram of the top table of the present invention;

[0027] Figure 6 is the transmission structure diagram of the centrifugal feeder of the present invention;

[0028] Figure 7 is the disassembly diagram of the centrifugal feeder of the present invention;

[0029] Figure 8 is the external structure diagram of the heating box of the present invention;

[0030] Figure 9 is the internal view of the heating box of the present invention.

[0031] In the figure: 1. Production line workbench; 2. Column; 3. Top table; 4. First conveyor; 5. First belt; 6. Tooling position; 7. Intelligent electricity meter workpiece; 8. Outer support seat; 9. Flexible coating mold; 10. Heating box; 11. Ear piece; 12. Partition seat; 13. Rotating rod; 14. Sprocket; 15. Chain; 16. Limiting groove; 17. Connecting block; 18. Mold shell; 19. Mold prefabricated groove; 20. Wall-attached airbag combination; 21. Empty groove; 22. No. 1 air pipe; 23. No. 2 air pipe; 24. First air storage tank; 25. First compressor; 26. Rotating motor; 27. Output shaft; 28. Centrifugal rotating shaft; 29. Centrifugal feeder; 30. Outer connection seat; 31. Installation groove; 32. Paint box; 33. Sponge dipping rod; 34. Curved baffle; 35. Rolling brush; 36. Root; 37. Plain bearing; 38. Brush hair; 39. Drying groove; 40. Inlet; 41. Electric sealing door; 42. Air hole; 43. Transition chamber; 44. Second air storage tank; 45. Air supply pipe; 46. Second compressor; 47. Exhaust pump; 48. Return pipe; 49. Hopper-shaped gas collecting tank; 50. Activated carbon deodorizer; 51. Second conveyor; 52. Second belt. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] As shown Figures 1-6 in the figure, this embodiment provides an intelligent electricity meter automated production line, including a production line workbench 1. Columns 2 are welded at the four corners of the upper end surface of the production line workbench 1. A top table 3 is horizontally arranged at the upper ends of the four groups of columns 2. The front end of the production line workbench 1 is connected to a first conveyor 4. The first belt 5 on the first conveyor 4 extends towards the upper table surface of the production line workbench 1. A number of tooling positions 6 are equidistantly arranged on the first belt 5. The tooling positions 6 are used for vertically placing intelligent electricity meter workpieces 7. An outer support seat 8 is arranged at the center position of the lower end surface of the production line workbench 1. A flexible coating mold 9 is arranged inside the outer support seat 8. The flexible coating mold 9 is used for applying a protective paint to the peripheral surfaces of the intelligent electricity meter workpieces 7 to form a protective film. The protective paint is a fireproof insulating paint, which has fireproof and insulating properties. The rear end of the production line workbench 1 is connected to a second conveyor 51. A heating box 10 is fixedly arranged at the front end position of the second conveyor 51. The heating box 10 is used for heating the intelligent electricity meter workpieces 7 and air-drying the protective paint applied on their surfaces.

[0035] Specifically, the upper end surface of the outer support seat 8 is riveted to the lower end surface of the top table 3 through two ear pieces 11. A partition seat 12 is vertically and fixedly arranged inside the outer support seat 8. The two side surfaces of the partition seat 12 are fixed to the inner wall of the outer support seat 8.

[0036] In this embodiment, rotating rods 13 are installed at both the upper and lower ends of the partition seat 12 through bearing seats. A driving motor is installed at one end of a group of rotating rods 13. Two groups of sprockets 14 are sleeved at corresponding positions on the two groups of rotating rods 13. The sprockets 14 at the upper and lower relative positions are connected by a chain 15, as Figure 3 shown

[0037] In this embodiment, limiting grooves 16 for the chain 15 to extend into are longitudinally opened on both the front and rear surfaces of the partition seat 12 to play a limiting role.

[0038] Specifically, the flexible coating mold 9 includes a connection block 17, a mold shell 18, a mold prefabricated groove 19, and an adherent airbag combination 20, as Figure 4 shown

[0039] In this embodiment, the back surface of the mold shell 18 near the upper end portion is welded to the two groups of chains 15 through two groups of connection blocks 17 respectively. The connection blocks 17 play a connecting role. The connection blocks 17 extend into the limiting grooves 16 for limiting lifting.

[0040] In this embodiment, according to the size and specifications of the intelligent electricity meter workpiece 7, a mold prefabricated groove 19 is opened inside the mold shell 18. The size and specifications of the mold prefabricated groove 19 are slightly larger than those of the intelligent electricity meter workpiece 7 itself, so as to reserve a coating space for the adherent airbag combination 20 and also facilitate the free entry and exit of the intelligent electricity meter workpiece 7 from the mold prefabricated groove 19.

[0041] Further, the wall-attached airbag assembly 20 includes four groups of thin wall-attached airbags, which are respectively attached to the four faces of the prefabricated groove 19 of the mold. The four groups of thin wall-attached airbags are connected and communicated, and a curved chamfer is formed at the connection, which is convenient for coating the protective paint at the corners of the smart meter workpiece 7.

[0042] Further, the back surface of the wall-attached airbag assembly 20 is completely flatly bonded to the groove wall of the prefabricated groove 19 of the mold, and a printing cloth layer is added to the front surface of the wall-attached airbag assembly 20 for directly printing the protective paint on the outer surface of the smart meter workpiece 7.

[0043] Further, an empty groove 21 is opened in the middle of one of the four groups of thin wall-attached airbags, and the empty groove 21 corresponds to the position of the display screen of the smart meter workpiece 7, so as to avoid the display screen from being smeared (the material performance of the display screen itself is excellent, and it does not need to be smeared with protective paint, and the display clarity will also be affected after coating).

[0044] In this embodiment, a first air pipe 22 and a second air pipe 23 are connected to the upper end surface of the wall-attached airbag assembly 20.

[0045] In this embodiment, the first air pipe 22 extends upward and is connected to the air outlet joint of the first air storage tank 24. A first air valve is installed at the air outlet joint. The first air storage tank 24 is located on the upper end surface of the top platform 3, as Figure 5 shown.

[0046] In this embodiment, the second air pipe 23 extends upward and communicates with the air inlet of the first compressor 25. The first compressor 25 is located at the bottom of the first air storage tank 24 to compress the air in the first air storage tank 24 to form a gas cycle, as Figure 5 shown.

[0047] In this embodiment, through holes for the first air pipe 22 and the second air pipe 23 to pass through are respectively opened on the top platform 3. The first air pipe 22 and the second air pipe 23 are flexible hoses and move along with the flexible coating mold 9.

[0048] Further, a rotating motor 26 is installed inside the middle position of the top platform 3. The output shaft 27 of the rotating motor 26 extends downward out of the top platform 3. The output shaft 27 is connected to a centrifugal rotating shaft 28 through a coupling, as Figure 6 shown.

[0049] Further, a centrifugal feeder 29 is embedded on the outer shaft surface of the centrifugal rotating shaft 28. The centrifugal feeder 29 makes a centrifugal motion to feed the printing cloth layer on the wall-attached airbag assembly 20.

[0050] In this embodiment, a second belt 52 is arranged on the second conveyor 51. The outlet of the drying tank 39 is connected to the second belt 52. The second belt 52 transports the smart meter workpiece 7 to the film sticking working area.

[0051] In the use of this embodiment, first, the smart meter workpieces 7 are placed one by one on the tooling position 6 of the first belt 5. As the first belt 5 moves step by step, when the smart meter workpiece 7 moves directly below the outer support seat 8, the movement stops. By starting the drive motor, a set of rotating rods 13 are driven to rotate. Through the sprocket structure transmission, the chain 15 rotates clockwise, driving the flexible coating die 9 to descend vertically. It moves downward from its original position inside the outer support seat 8 until it moves to cover the outside of the entire smart meter workpiece 7. At this time, the wall-attached airbag combination 20 is in a shrunken state. By opening the first air valve, the first air storage tank 24 releases air and enters the wall-attached airbag combination 20 downward through the first air pipe 22. The four wall-attached thin airbags instantly bulge, and thus fit around the outside of the smart meter workpiece 7 from four sides respectively. Because the airbags are flexible, they can cover irregular surfaces, so that positions such as grooves, screws, screw slot gaps, and heat dissipation holes on the surface of the smart meter workpiece 7 can all be fitted. The printing cloth layer on the surface of the wall-attached thin airbag carries the protective paint. Therefore, through the fitting contact, each position around the smart meter workpiece 7 can be coated with the protective paint, and finally a protective film is formed. After that, the first compressor 25 works, and uses the second air pipe 23 to suck the gas in the wall-attached airbag combination 20 back into the first air storage tank 24 for compression, so that the wall-attached thin airbags do not contact the smart meter workpiece 7. Then, through the counterclockwise rotation of the chain 15, the flexible coating die 9 is lifted to the original position. The coated smart meter workpiece 7 is moved by the belt and enters the heating box 10 for drying to accelerate the drying of the protective paint, facilitating subsequent film pasting.

[0052] Embodiment Two:

[0053] Based on Embodiment One, the centrifugal feeder 29 is designed to solve the technical problem that the wall-attached airbag combination 20 cannot feed materials evenly, as Figure 7 shown.

[0054] Specifically, the centrifugal feeder 29 includes an outer connection seat 30, an installation groove 31, a paint box 32, a sponge dipping rod 33, a curved baffle 34, a roller brush 35, a root 36, a plain bearing 37, and bristles 38, as Figure 7 shown.

[0055] In this embodiment, an installation groove 31 is formed on the outer side surface of the outer connection seat 30, and a paint box 32 is fixed deep inside the installation groove 31. The protective paint is stored in the paint box 32.

[0056] In this embodiment, a sponge dipping rod 33 is installed on one side of the paint box 32, and the sponge dipping rod 33 is in full contact with the protective paint in the paint box 32.

[0057] In this embodiment, the sponge dipping rod 33 includes a curved baffle 34 that serves as a shielding function to prevent the protective paint from overflowing.

[0058] Further, a rotary brush 35 is arranged at a position closer to the outside in the installation groove 31. The upper and lower roots 36 of the rotary brush 35 are respectively located in a plain bearing 37, and the plain bearing 37 is fixed on the installation groove 31.

[0059] Further, one-third of the rotary brush 35 is located outside the installation groove 31. The outer surface of the rotary brush 35 is evenly and densely distributed with bristles 38. The sponge dipping rod 33 contacts one side surface of the rotary brush 35, and they have the same length. When the sponge dipping rod 33 is slightly squeezed, the protective paint will overflow for uniform feeding.

[0060] In the use of this embodiment, when the protective paint content on the surface of the wall-attached airbag combination 20 is insufficient, by starting the rotary motor 26, the centrifugal rotating shaft 28 drives the centrifugal feeder 29 to perform a circular motion. The rotary brush 35 on the centrifugal feeder 29 contacts the wall-attached airbag combination 20 (in the inflated state), and the protective paint on itself is evenly transferred to the printing and dyeing fabric layer of the wall-attached airbag combination 20 by using a number of bristles 38. The rotary brush 35 is always in a rolling state, so as to reduce the resistance during the circular motion. The feeding of the rotary brush 35 depends on the sponge dipping rod 33 to guide the protective paint in the paint box 32 for continuous supply. Since the centrifugal feeder 29 performs a centrifugal motion, the protective paint on the sponge dipping rod 33 has a tendency to accelerate and transfer outward, so a more effective feeding effect is achieved.

[0061] Embodiment Three:

[0062] On the basis of Embodiment One, the heating box 10 is designed to solve the technical defects of the heating box 10 in the prior art (the existing heating box 10 mainly has two structures. The first is a drying box structure, and the heat source is hot water or an electric heating wire. The defect is that the heat cannot be recycled, and the inside is closed and lacks gas fluidity, so the drying speed is slow. The second is a hot air blower structure, and the heat source is hot air. The defect is that in the case of horizontal air blowing, the back surface of the workpiece receives less heat and the heating is uneven. In addition, the protective paint has a paint smell and there is a lack of odor removal measures), as Figures 8-9 shown.

[0063] Specifically, a drying groove 39 is provided in the middle of the heating box 10 at the horizontal position of the first belt 5. Both sides of the drying groove 39 include an inlet 40 and an outlet. Electric sealing doors 41 are installed at the inlet 40 and the outlet. The drying groove 39 is used to place the smart meter workpiece 7. Air holes 42 are evenly provided in the upper and lower tank walls of the drying groove 39, and the air holes 42 are distributed in a rectangular shape around the outer side surface of the smart meter workpiece 7.

[0064] In this embodiment, a transition chamber 43 is provided in the heating box 10 at the upper end of the drying groove 39.

[0065] In this embodiment, a second gas storage tank 44 is fixedly installed at the top of the heating box 10, and the air supply pipe 45 at the lower end of the second gas storage tank 44 extends into the transition chamber 43.

[0066] In this embodiment, a third air valve is installed on the air supply pipe 45. The second storage tank 44 includes a heating device that heats the air inside to form hot air. The top of the second storage tank 44 further includes a second compressor 46, which presses the outside air into the second storage tank 44.

[0067] Furthermore, air extraction pumps 47 are symmetrically installed on both outer sides of the transition chamber 43, and the air inlets on the air extraction pumps 47 are connected to the loop pipe 48.

[0068] Furthermore, a hopper-shaped air collection tank 49 is provided at the lower end of the drying tank 39. An activated carbon deodorizer 50 is installed in the middle of the hopper-shaped air collection tank 49. The loop pipe 48 extends downward and communicates with the bottom of the hopper-shaped air collection tank 49 to form a continuous circulation of hot air.

[0069] When this embodiment is in use, the intelligent electricity meter workpiece 7 enters the drying tank 39 of the heating box 10, and then the electric sealing doors 41 at the inlet 40 and the outlet are closed to form a sealed environment. By opening the third air valve, the hot air in the second storage tank 44 is blown into the transition chamber 43 along the air supply pipe 45 (closed after injecting a certain amount of hot air), and then enters the drying tank 39 through a number of air holes 42 at the bottom of the transition chamber 43 to air-dry the side of the intelligent electricity meter workpiece 7. The hot air continuously enters the drying tank 39, generating positive pressure. The hot gas continuously enters the hopper-shaped air collection tank 49 from the air holes 42 at the bottom of the drying tank 39. When passing through the activated carbon deodorizer 50, the activated carbon uses a porous solid adsorbent to treat the gaseous pollutants in the protective paint, causing one or several of its components to stay on the surface of the solid adsorbent to achieve the effect of deodorization. Subsequently, the two air extraction pumps 47 are started, and the gas containing heat in the hopper-shaped air collection tank 49 is re-injected into the transition chamber 43 through the loop pipe 48 to form a continuous circulation of hot air, reusing the heat and accelerating the drying of the intelligent electricity meter workpiece 7.

[0070] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Intelligent electricity meter automated production line, including a production line workbench (1), characterized in that: At the four corners of the upper end surface of the production line workbench (1), columns (2) are welded. At the upper ends of the four groups of columns (2), a top platform (3) is horizontally arranged. The front end of the production line workbench (1) is connected to a first conveyor (4). The first belt (5) on the first conveyor (4) extends towards the upper surface of the production line workbench (1). A number of tooling positions (6) are equidistantly arranged on the first belt (5). The tooling positions (6) are used for vertically placing smart meter workpieces (7). At the center position of the lower end surface of the top platform (3), an outer support seat (8) is arranged. Inside the outer support seat (8), a flexible coating die (9) is arranged. The flexible coating die (9) is used for applying protective paint to the peripheral surfaces of the smart meter workpieces (7). The rear end of the production line workbench (1) is connected to a second conveyor (51). At the front end position of the second conveyor (51), a heating box (10) is fixedly arranged. The heating box (10) is used for heating the smart meter workpieces (7) and air-drying the protective paint applied to their surfaces; The upper end surface of the outer support seat (8) is riveted to the lower end surface of the top platform (3) through two ear pieces (11). Inside the outer support seat (8), a partition seat (12) is vertically and fixedly arranged. Rotating rods (13) are installed at the upper and lower ends of the partition seat (12) through bearing seats. Two groups of sprockets (14) are sleeved at corresponding positions on the two groups of rotating rods (13). The sprockets (14) at the upper and lower opposite positions are connected by a chain (15). Longitudinal limiting grooves (16) for the chain (15) to extend into are respectively opened on the front and rear surfaces of the partition seat (12); The flexible coating die (9) includes a connecting block (17), a die shell (18), a die prefabricated groove (19), and a wall-attached airbag combination (20). At the position near the upper end of the back surface of the die shell (18), the die shell (18) is welded to the two groups of chains (15) through two groups of connecting blocks (17) respectively. The connecting block (17) extends into the limiting groove (16) for limiting lifting. Inside the die shell (18), according to the size and specifications of the smart meter workpiece (7), a die prefabricated groove (19) is opened. The size and specifications of the die prefabricated groove (19) are slightly larger than those of the smart meter workpiece (7) itself; The wall-attached airbag combination (20) includes four wall-attached thin airbags, which are respectively attached to the four surfaces of the die prefabricated groove (19). The four wall-attached thin airbags are communicated with each other, and a curved chamfer is formed at the connection. The back surface of the wall-attached airbag combination (20) is completely flat and glued to the groove wall of the die prefabricated groove (19). A printing cloth layer is added to the front surface of the wall-attached airbag combination (20) for directly printing the protective paint on the outer surface of the smart meter workpiece (7). An empty groove (21) is opened in the middle of one of the four wall-attached thin airbags. The empty groove (21) corresponds to the position of the display screen of the smart meter workpiece (7).

2. The automated production line of the smart meter according to claim 1, characterized in that: The upper end surface of the wall-attached airbag assembly (20) is connected with a first air pipe (22) and a second air pipe (23). The first air pipe (22) extends upward and is connected to the air outlet joint of the first air storage tank (24). A first air valve is installed at the air outlet joint. The first air storage tank (24) is located on the upper end surface of the top platform (3). The second air pipe (23) extends upward and is communicated with the air inlet of the first compressor (25). The first compressor (25) is located at the bottom of the first air storage tank (24).

3. The automated production line of smart electricity meters according to claim 2, characterized in that: A rotary motor (26) is installed inside the middle position of the top platform (3). The output shaft (27) of the rotary motor (26) extends downward out of the top platform (3). The output shaft (27) is connected with a centrifugal rotating shaft (28) through a coupling. An eccentric feeder (29) is embedded on the outer shaft surface of the centrifugal rotating shaft (28). The eccentric feeder (29) makes a centrifugal motion to feed the printing fabric layer on the wall-attached airbag assembly (20).

4. The automated production line of the smart meter according to claim 3, characterized in that: The eccentric feeder (29) includes an outer connection seat (30), a mounting groove (31), a paint box (32), a sponge dipping rod (33), a curved baffle (34), a roller brush (35), a root part (36), a plain bearing (37) and bristles (38). A mounting groove (31) is opened on the outer side surface of the outer connection seat (30). A paint box (32) is fixed at the deep part inside the mounting groove (31). A sponge dipping rod (33) is installed on one side of the paint box (32). The sponge dipping rod (33) is in full contact with the protective paint in the paint box (32). The sponge dipping rod (33) includes a curved baffle (34) that plays a shielding role; A roller brush (35) is arranged at a position closer to the outside in the mounting groove (31). The upper and lower root parts (36) of the roller brush (35) are respectively located inside the plain bearings (37). The plain bearings (37) are fixed on the mounting groove (31). One-third of the roller brush (35) is located outside the mounting groove (31). The outer surface of the roller brush (35) is evenly and densely distributed with bristles (38). One side surface of the sponge dipping rod (33) is in contact with the roller brush (35), and they have the same length for uniform feeding.

5. The automated production line of the smart meter according to claim 4, wherein: A drying groove (39) is opened in the middle of the heating box (10) and at the horizontal position of the first belt (5). Both sides of the drying groove (39) include an inlet (40) and an outlet. The drying groove (39) is used for placing the smart meter workpiece (7). Air holes (42) are evenly opened in the upper and lower groove walls of the drying groove (39). The air holes (42) are distributed in a rectangular shape around the outer side surface of the smart meter workpiece (7).

6. The automated production line of intelligent electricity meters according to claim 5, characterized in that: A transition chamber (43) is provided inside the heating box (10) and at the upper end of the drying tank (39). A second gas storage tank (44) is fixedly installed at the top of the heating box (10). The air supply pipe (45) at the lower end of the second gas storage tank (44) extends into the transition chamber (43). A third gas valve is installed on the air supply pipe (45). The second gas storage tank (44) includes a heating device. A second compressor (46) is further included at the top of the second gas storage tank (44). Air extraction pumps (47) are symmetrically installed on both outer sides of the transition chamber (43). The air inlet on the air extraction pump (47) is connected to a loop pipe (48). A funnel-shaped gas collection tank (49) is provided at the lower end of the drying tank (39). An activated carbon odor eliminator (50) is installed in the middle of the funnel-shaped gas collection tank (49). The loop pipe (48) extends downward and communicates with the bottom of the funnel-shaped gas collection tank (49) to form a continuous circulation of hot air.

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