Intelligent induction type push rod bar heating furnace
By using the design of an intelligent induction push rod material heating furnace in the aluminum rod heating furnace, the electrical control unit and the photoelectric switch unit are used for intelligent control, and combined with the use of mechanical grippers and infrared thermometers, the bar material movement is solved The inconsistent speed and accumulation problems improve production accuracy and efficiency and reduce costs.
Patent Information
- Application Number
- CN202323552710.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The existing aluminum rod heating furnace has low intelligent control during the push of rod material, resulting in inconsistent movement speed of rod material, which can easily cause accumulation accidents in the furnace, and poor production accuracy and energy-saving effects.
An intelligent induction push rod material heating furnace was designed, and an electrical control unit and a photoelectric switch unit were used for intelligent control. The detection and sorting of discharged workpieces were realized through mechanical grippers and infrared thermometers to avoid accumulation. And improves production efficiency.
It effectively avoids rod material accumulation accidents, improves the accuracy and efficiency of heating production, reduces work costs, and enhances the intelligence of the heating furnace.
Smart Images
Figure CN222257611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating furnaces, in particular to an intelligent induction push rod bar heating furnace. Background Art
[0002] In the production and heating process of aluminum profiles and aluminum bars, the industry currently uses chain conveyor belt furnaces, mesh belt furnaces, and walking beam aluminum bar heating furnaces. However, the furnace structures of the three are relatively complex, prone to failures in the actual production process, and the maintenance time is long and the maintenance cost is high; at the same time, the three are less adaptable to the production rhythm, and the degree of automated production is low. When the feeding and discharging furnace doors are opened and closed, a large amount of heat loss will be caused, causing the temperature of the workpieces at the feeding and discharging ends to fluctuate greatly, reducing the heating quality, low production accuracy, and failing to achieve the effect of energy saving and consumption reduction. In the prior art, for example, the patent application number is 201810384091.1, and the patent name is a push rod type aluminum rod heating furnace. Although it has a simple structure, there is no problem of chain plate and mesh belt being stuck, and there is no need to replace the chain plate and mesh belt regularly, it can discharge more materials from the large furnace door, and can also realize single discharge from the small furnace door, avoiding the large loss of heat of other workpieces at the furnace door, so that it has stronger adaptability to the production rhythm, ensures the heating production accuracy and the heating quality of the workpiece, and reduces the total amount of heating gas demand. However, in the use of the step-type aluminum rod heating furnace, it is found that due to the low degree of intelligence and the lack of timely observation and control, when the rod is pushed, the friction between the rod and the conveying roller provides a driving force to move the rod, but the friction provided by the conveying roller is not exactly the same due to external factors, resulting in inconsistent rod movement speeds, which can easily cause accidents of rod accumulation in the furnace.
[0003] To this end, we designed an intelligent induction push rod bar heating furnace to solve the above problems. Utility Model Content
[0004] The utility model aims to solve the defects in the prior art that the intelligent control level of pushing of bar materials is low, it is difficult to effectively monitor, and there is a risk of bar material accumulation in the heating furnace, and proposes an intelligent induction push rod bar material heating furnace.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An intelligent induction push rod bar heating furnace comprises a furnace body, a hot air circulation guide system, a combustion system, a push rod feeding device, a workpiece discharging device and a tray transfer device. The hot air circulation guide system is arranged above the inside of the furnace body, the combustion system is installed on the side wall of the furnace body, the push rod feeding device is arranged on the outside of a furnace door at the front end of the furnace body, the workpiece discharging device is installed at the rear end of the furnace body, and the tray transfer device is arranged on one side of the outside of the furnace body and between the push rod feeding device and the furnace door at the front end of the furnace body.
[0007] It also includes an electrical control unit and a photoelectric switch unit, the electrical control unit establishes control connections with the push rod feeding device and the photoelectric switch unit respectively, the photoelectric switch unit is installed on the outside of the furnace discharge door, the photoelectric switch unit includes a transmitting end and a receiving end, the transmitting end and the receiving end are respectively installed on both sides of the furnace discharge door, and the transmitting end, the receiving end and the material tray inside the furnace are at the same horizontal height.
[0008] Further optimization, the push rod feeding device is composed of a pushing rack and a pushing cylinder for executing power, and six groups of push rod feeding devices are arranged in front of the feeding furnace door at the front end of each furnace body, and the six groups of push rod feeding devices correspond to the six rows of heating stations in the furnace body respectively.
[0009] Further optimization, the workpiece discharging device consists of a discharging reducer and a discharging chain, the discharging reducer establishes a transmission connection with the discharging chain, the discharging chain is arranged along the discharging port of the furnace body, and a mechanical gripper for grasping the workpiece is provided above one end of the discharging chain, and the controllers of the discharging reducer and the mechanical gripper both establish control connections with the electrical control unit.
[0010] Further optimization is performed, an infrared thermometer for measuring the temperature of the workpiece is installed above one side of the mechanical gripper, and the infrared thermometer establishes a data signal connection with the electrical control unit.
[0011] Further optimization, the tray transfer device includes a running track, a conveyor chain, a lifting cylinder and a tray reducer. The running track is installed on the ground through a steel frame support. A number of tray reducers are arranged at intervals on the running track. The conveyor chain is arranged in the running track. The conveyor chain is connected to the driving wheel of the tray reducer. The lifting cylinder is arranged at the corner connection of the running track.
[0012] Further optimization, the electrical control unit includes a temperature control cabinet, a transmission cabinet and a PLC control cabinet, the temperature control cabinet is respectively connected to the hot air circulation diversion system, the combustion system and the infrared thermometer, the transmission cabinet is respectively connected to the push rod feeding device, the workpiece discharging device and the tray transfer device, and the PLC control cabinet is respectively connected to the temperature control cabinet and the transmission cabinet.
[0013] Compared with the prior art, the beneficial effects of the utility model are: the utility model has a high degree of intelligence, and can timely detect whether there are any discharge workpieces on the discharge table through photoelectric switches, effectively control the heating process of the heated workpieces in the furnace, and avoid accidents of bar accumulation in the furnace; by setting mechanical grippers and temperature detection devices, the discharge workpieces can be sorted, which improves work efficiency and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the main structure of an intelligent induction push rod bar heating furnace proposed by the utility model;
[0015] Figure 2 This is a side view structural diagram of an intelligent induction push rod bar heating furnace proposed by the utility model;
[0016] Figure 3 The utility model provides a schematic diagram of the top view of the structure of an intelligent induction push rod bar heating furnace.
[0017] The numbers in the figure are: 1. furnace body; 2. hot air circulation and diversion system; 3. combustion system; 4. push rod feeding device; 5. workpiece discharging device; 51. discharging reducer; 52. discharging chain; 6. tray transfer device; 61. running track; 62. conveyor chain; 63. lifting cylinder; 64. tray reducer; 7. photoelectric switch unit; 71. transmitting end; 72. receiving end; 8. tray; 9. mechanical gripper; 91. infrared thermometer. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] Reference Figures 1 to 3 The intelligent induction push rod bar heating furnace proposed in this embodiment has two chambers that operate independently. The cycle time is 90s / piece when a single chamber is operating, and 45s / piece when two chambers are operating simultaneously. The heating furnace mainly includes a furnace body 1, a hot air circulation guide system 2, a combustion system 3, a push rod feeding device 4, a workpiece discharging device 5 and a tray transfer device 6 in terms of equipment structure.
[0020] Among them, the furnace body 1 is welded into a frame with various steel sections (specifications include 10# channel steel, 12# channel steel, t4 steel plate, t12 steel plate, t1.5 stainless steel plate, t2 stainless steel plate, 40×40 angle steel, etc.). The furnace frame is welded with high-quality carbon steel profiles. The furnace lining is made of high-quality stainless steel plate and high-quality Q235 steel plate on the furnace outer plate to form an insulation cavity, and the cavity is filled with multiple layers of high-quality fiber cotton. This material has the characteristics of small heat storage, light weight, and excellent insulation effect. Safety guardrails are set around the top of the furnace body 1, and the side of the furnace body 1 is equipped with a maintenance platform for the combustion system 3 and a ladder for overhauling the furnace top equipment.
[0021] The hot air circulation guide system 2 is arranged above the interior of the furnace body 1, the combustion system 3 is installed on the side wall of the furnace body 1, the push rod feeding device 4 is arranged on the outside of the front end furnace door of the furnace body 1, the workpiece discharging device 5 is installed at the rear end of the furnace body 1, and the tray transfer device 6 is arranged on one side outside the furnace body 1 and between the push rod feeding device 4 and the front end furnace door of the furnace body 1.
[0022] It is worth mentioning that as part of the intelligentization of the heating furnace, it also includes an electrical control unit and a photoelectric switch unit 7, and the electrical control unit establishes control connections with the push rod feeding device 4 and the photoelectric switch unit 7 respectively. The electrical control unit includes a temperature control cabinet, a transmission cabinet and a PLC control cabinet, the temperature control cabinet is respectively connected to the hot air circulation guide system 2, the combustion system 3 and the infrared thermometer 91, the transmission cabinet is respectively connected to the push rod feeding device 4, the workpiece discharging device 5 and the tray transfer device 6, and the PLC control cabinet is respectively connected to the temperature control cabinet and the transmission cabinet.
[0023] The photoelectric switch unit 7 is installed outside the discharge door of the furnace body 1. The photoelectric switch unit 7 includes a transmitting end 71 and a receiving end 72. The transmitting end 71 and the receiving end 72 are respectively installed on both sides of the discharge door of the furnace body 1, and the transmitting end 71 and the receiving end 72 and the material tray 8 inside the furnace body 1 are at the same level. It is used to detect whether there is material on the discharge roller in the furnace. Only when it is confirmed that there is no material on the discharge roller, the push rod feeding device 4 can perform the feeding and pushing operation to prevent the accumulation of blanks in the furnace caused by program misjudgment.
[0024] The working principle of the combustion system 3 is: when the furnace in the furnace body 1 needs to be heated, the wind pressure and the gas pressure both meet the burner combustion premise, the pressure switch connects the control power supply, and the system automatically ignites to heat the furnace. When it is close to the temperature, under the command of the electrical control unit, the gas proportional valve and the butterfly valve of the combustion air make corresponding synchronous servo adjustments to meet the requirements of furnace temperature control and full combustion. The whole system is sensitive, safe and reliable.
[0025] The push rod feeding device 4 is composed of a push rack and a push cylinder for executing power. Six groups of push rod feeding devices 4 are arranged in front of the feeding furnace door at the front end of each furnace body 1. The six groups of push rod feeding devices 4 correspond to the six rows of heating stations in the furnace body 1. The push cylinder pushes the tray 8 and the workpieces on the tray 8 into the furnace for heating and heat preservation. The six rows of heating stations are respectively pushed by six groups of push rod feeding devices 4. The tray 8 with the bar material (workpiece) is transported to the corresponding feeding station through a chain. The cylinder at the feeding position rises to lift the bottom track of the tray 8 and the track in the furnace body 1 to the same height. The push cylinder receives the signal from the electrical control unit and pushes the tray 8 into the furnace for heating.
[0026] The workpiece discharging device 5 is composed of a discharging reducer 51 and a discharging chain 52. The discharging reducer 51 establishes a transmission connection with the discharging chain 52, and the discharging chain 52 is arranged along the discharging port of the furnace body 1. After the workpiece is heated to the corresponding process time, the workpiece discharging device 5 separately transports the tray 8 carrying the workpiece in the furnace. The transmitting end 71 and the receiving end 72 of the photoelectric switch unit 7 set at the discharging port of the furnace body 1 have the function of transmitting and receiving photoelectric signals. When the receiving end 72 does not receive the photoelectric signal emitted by the transmitting end 71, it means that the photoelectric signal is blocked by the tray 8, and there is a tray 8 on the discharging platform; otherwise, there is no tray 8 on the discharging platform. The photoelectric switch unit 7 is used to detect whether there is material on the discharging platform. Only when it is detected that there is workpiece discharging on the discharging platform, the workpiece discharging device 5 will proceed to the next step.
[0027] It should be noted that in order to further improve the degree of intelligence and abandon the task of manually transporting the discharged workpieces, a mechanical gripper 9 for grabbing the discharged workpieces is arranged above one end of the discharge chain 52, and the mechanical gripper 9 can grab the discharged workpieces and place them in the discharge cart. The controllers of the discharge reducer 51 and the mechanical gripper 9 are both connected to the electrical control unit. An infrared thermometer 91 for measuring the temperature of the workpiece is installed above one side of the mechanical gripper 9, and the infrared thermometer 91 establishes a data signal connection with the electrical control unit. The infrared thermometer 91 completes the temperature measurement of the discharged workpiece. The infrared thermometer 91 can set the temperature range, and an abnormal alarm is issued if the temperature exceeds the temperature control range, and a signal is provided to the mechanical gripper 9, which is sent to the workpiece scrap conveyor belt by the mechanical gripper 9. The system is provided with a low-temperature sorting program. If the discharged workpiece is below the temperature control range, it is sent to the tray transfer device 6 by the mechanical gripper 9, and the workpiece is sent to the feed port again for reheating.
[0028] The tray transfer device 6 includes a running track 61, a conveying chain 62, a lifting cylinder 63 and a tray reducer 64. The running track 61 is supported and installed on the ground by a steel frame. A plurality of tray reducers 64 are arranged at intervals on the running track 61. A conveying chain 62 is arranged in the running track 61. The conveying chain 62 is connected to the driving wheel of the tray reducer 64. A lifting cylinder 63 is arranged at the corner connection of the running track 61. The height of the entire tray transfer device 6 can be adjusted by bolts to meet the needs of production. The lifting cylinder 63 pushes the tray 8 of the returned workpiece to the conveying chain 62 of the running track 61. The tray reducer 64 controls the speed through a frequency converter to prevent the occurrence of brake overshoot.
[0029] When the utility model is used, the tray transfer device 6 first transports the tray 8 containing the workpiece to be heated to one side of the push rod feeding device 4. Under the push of the push rod feeding device 4, the tray 8 is pushed into the furnace body 1 for heating. After the heating of the workpiece is completed, the workpiece discharging device 5 transports the heated workpiece to the grasping area of the mechanical gripper 9. When the mechanical gripper 9 grasps the workpiece, it detects the temperature of the workpiece with the infrared thermometer 91 and grasps and classifies the workpieces with different temperatures. The workpieces within the specified temperature range are grasped into the material transport trolley, the workpieces exceeding the temperature range are grasped onto the scrap conveyor belt, and the workpieces below the temperature range are grasped to the tray transfer device 6 and re-conveyed to the push rod feeding device 4 for re-heating treatment. It should be noted that, in the above-mentioned operation process, when the heated workpiece is discharged, a photoelectric signal is emitted by the transmitting end 71 of the photoelectric switch unit 7 arranged on the side of the discharge port, and whether the receiving end 72 of the photoelectric switch unit 7 receives the emitted photoelectric signal is used as the standard. When the receiving end 72 does not receive the photoelectric signal emitted by the transmitting end 71, it means that the photoelectric signal is blocked by the material tray 8, and there is a material tray 8 on the discharge table. During this period, the push rod feeding device 4 is prohibited from conveying the material tray 8 into the furnace; when the receiving end 72 receives the photoelectric signal emitted by the transmitting end 71, it means that the photoelectric signal is not blocked by the material tray 8, and there is no material tray 8 on the discharge table. During this period, the push rod feeding device 4 is allowed to convey the material tray 8 into the furnace.
[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An intelligent induction push rod bar heating furnace, comprising a furnace body (1), a hot air circulation guide system (2), a combustion system (3), a push rod feeding device (4), a workpiece discharging device (5) and a tray transfer device (6), wherein the hot air circulation guide system (2) is arranged above the interior of the furnace body (1), the combustion system (3) is installed on the side wall of the furnace body (1), the push rod feeding device (4) is arranged on the outside of the front end furnace door of the furnace body (1), the workpiece discharging device (5) is installed at the rear end of the furnace body (1), and the tray transfer device (6) is arranged on one side of the outside of the furnace body (1) and between the push rod feeding device (4) and the front end furnace door of the furnace body (1); characterized in that The invention also comprises an electrical control unit and a photoelectric switch unit (7), wherein the electrical control unit is respectively connected to the push rod feeding device (4) and the photoelectric switch unit (7), wherein the photoelectric switch unit (7) is installed outside the discharge door of the furnace body (1), and the photoelectric switch unit (7) comprises a transmitting end (71) and a receiving end (72), wherein the transmitting end (71) and the receiving end (72) are respectively installed on both sides of the discharge door of the furnace body (1), and the transmitting end (71) and the receiving end (72) as well as the material tray (8) inside the furnace body (1) are all at the same level.
2. The intelligent induction push rod bar heating furnace according to claim 1 is characterized in that: The push rod feeding device (4) is composed of a push rod rack and a push rod oil cylinder for executing power. Six groups of push rod feeding devices (4) are arranged in front of the feeding furnace door at the front end of each furnace body (1). The six groups of push rod feeding devices (4) correspond to the six rows of heating stations in the furnace body (1).
3. The intelligent induction push rod bar heating furnace according to claim 1 is characterized in that: The workpiece discharging device (5) is composed of a discharging reducer (51) and a discharging chain (52), wherein the discharging reducer (51) is in transmission connection with the discharging chain (52), the discharging chain (52) is arranged along the discharging port of the furnace body (1), and a mechanical gripper (9) for grasping the workpiece is arranged above one end of the discharging chain (52), and the controllers of the discharging reducer (51) and the mechanical gripper (9) are both in control connection with the electrical control unit.
4. The intelligent induction push rod bar heating furnace according to claim 3 is characterized in that: An infrared thermometer (91) for measuring the temperature of a workpiece is installed above one side of the mechanical gripper (9), and the infrared thermometer (91) establishes a data signal connection with the electrical control unit.
5. The intelligent induction push rod bar heating furnace according to claim 1 is characterized in that: The tray transfer device (6) comprises a running track (61), a conveying chain (62), a lifting cylinder (63) and a tray reducer (64); the running track (61) is supported and installed on the ground by a steel frame; a plurality of tray reducers (64) are arranged at intervals on the running track (61); the conveying chain (62) is arranged in the running track (61); the conveying chain (62) is connected to the driving wheel of the tray reducer (64); and the lifting cylinder (63) is arranged at the corner connection of the running track (61).
6. The intelligent induction push rod bar heating furnace according to claim 1 is characterized in that: The electrical control unit comprises a temperature control cabinet, a transmission cabinet and a PLC control cabinet. The temperature control cabinet is respectively connected to the hot air circulation guide system (2), the combustion system (3) and the infrared thermometer (91). The transmission cabinet is respectively connected to the push rod feeding device (4), the workpiece discharging device (5) and the tray transfer device (6). The PLC control cabinet is respectively connected to the temperature control cabinet and the transmission cabinet.