阅读说明：本技术 一种花键毂尼龙层的自动涂覆生产线 (Automatic coating production line for nylon layer of spline hub ) 是由 张万玺 于 2021-07-27 设计创作，主要内容包括：本发明属于花键毂尼龙层涂覆技术领域,本发明公开了一种花键毂尼龙层的自动涂覆生产线,蘸胶台固定设置在链条输送机的左侧位置；擦拭台固定设置在蘸胶台的后侧一侧位置；链条输送机固定设置在蘸胶台的右侧位置；加热炉固定设置在链条输送机的左端上部前后两侧位置；均匀冷却装置设置在加热炉的右侧位置；蘸尼龙粉台固定设置在链条输送机的右端位置；PLC控制程序固定设置在蘸尼龙粉台的后侧位置。该发明实现了花键毂尼龙层的自动化、智能化一次性涂覆；提高了花键毂的尼龙层的涂覆效率,实现对花键毂胶涂覆层的智能化温度控制,提高了加热的均匀性；实现了花键毂胶涂覆层的温控式、均匀化冷却,提高了花键毂胶涂覆层的成型质量。(The invention belongs to the technical field of coating of a nylon layer of a spline hub, and discloses an automatic coating production line of the nylon layer of the spline hub.A glue dipping table is fixedly arranged at the left position of a chain conveyor; the wiping table is fixedly arranged at one side of the rear side of the glue dipping table; the chain conveyor is fixedly arranged at the right side position of the glue dipping table; the heating furnace is fixedly arranged at the front side and the rear side of the upper part of the left end of the chain conveyor; the uniform cooling device is arranged at the right side position of the heating furnace; the nylon powder dipping table is fixedly arranged at the right end of the chain conveyor; the PLC control program is fixedly arranged at the rear side position of the nylon powder dipping table. The invention realizes the automatic and intelligent one-time coating of the nylon layer of the spline hub; the coating efficiency of the nylon layer of the spline hub is improved, the intelligent temperature control of the glue coating layer of the spline hub is realized, and the heating uniformity is improved; the temperature control type and uniform cooling of the spline hub glue coating layer are realized, and the forming quality of the spline hub glue coating layer is improved.)

1. An automatic coating production line for a spline hub nylon layer comprises a material conveying table, a left material conveying table and a right material conveying table; the feeding table is divided into a left feeding table and a right feeding table, the left feeding table is fixedly arranged at the left side position of the feeding manipulator, and the right feeding table is fixedly arranged at the right side position of the discharging manipulator; the method is characterized in that: the glue dipping table is fixedly arranged at the left side position of the chain conveyor, the upper part of the glue dipping table is open, and the glue dipping table is used for coating a layer of glue on the spline hub; the wiping table is fixedly arranged at one side of the rear side of the glue dipping table; the chain conveyor is fixedly arranged at the right side position of the glue dipping table, and the spline hub fixing devices are uniformly arranged on the chain conveyor in the longitudinal direction; the spline hub fixing device comprises a connecting plate, the connecting plate is uniformly and fixedly arranged on the chain conveyor, fixing cylinders are longitudinally and equidistantly arranged on the connecting plate, the fixing cylinders are cylindrical with upper and lower openings, and the spline hubs are placed in the fixing cylinders; the heating furnace is fixedly arranged at the front side and the rear side of the upper part of the left end of the chain conveyor, and is used for heating the spline hub dipped with the glue, and a thermocouple is arranged in the heating furnace; the uniform cooling device is arranged at the right side of the heating furnace and is fixedly connected with the front side and the rear side of the chain conveyor; the thermocouples are uniformly arranged at the upper part of the uniform cooling device; the photoelectric proximity switch I is fixedly arranged at the rear side position of the left end of the left material conveying table, the photoelectric proximity switch II is fixedly arranged at the middle position of the left end of the chain conveyor, the photoelectric proximity switch III is fixedly arranged at the middle position of the right end of the chain conveyor, and the photoelectric proximity switch II is fixedly arranged at the middle position of the left end of the right material conveying table; the nylon powder dipping table is fixedly arranged at the right end of the chain conveyor and is a box body with the periphery closed and the upper part opened; the discharging manipulator is fixedly arranged at the right side of the nylon powder dipping table; the PLC control program is fixedly arranged at the rear side position of the nylon powder dipping table and is used for automatically controlling the automatic matching action among the left material conveying table, the right material conveying table, the feeding mechanical arm, the heating furnace, the uniform cooling device and the discharging mechanical arm through the photoelectric proximity switch I, the photoelectric proximity switch II, the photoelectric proximity switch III and the photoelectric proximity switch IV; the technical production process of the automatic coating production line of the spline hub nylon layer comprises the following steps: firstly, when the PLC control program automatically controls the feeding manipulator to move to the position of the photoelectric proximity switch I, the photoelectric proximity switch I senses the signal of the feeding manipulator, and simultaneously transmits the signal to a PLC control program, the PLC control program transmits a control instruction to a driving motor of the left material conveying table to stop the operation of the driving motor, at the moment, the feeding mechanical arm takes down the spline hub cleaned by blowing from a spline hub fixing device of the left material conveying table and transfers the spline hub cleaned by blowing to a glue dipping table, after the glue dipping action is finished, the PLC controls the feeding manipulator to lift the spline hub to stay in the air for a certain time so that the glue coated on the surface of the spline hub is accumulated downwards to form a liquid drop shape through the gravity of the glue, then the feeding manipulator transfers the spline hub to the position of a wiping table, and the liquid drop-shaped glue at the bottom of the spline hub is wiped on the sponge block, so that a glue layer with uniform thickness is formed on the surface of the spline; then the feeding manipulator moves the spline hub to the left end of the chain conveyor, when the photoelectric proximity switch II senses the feeding manipulator, the photoelectric proximity switch II transmits a sensed signal to a PLC control program, the PLC control program controls a stepping motor of the running chain conveyor to stop rotating, at the moment, the feeding manipulator places the spline hubs on the spline hub fixing device on the chain conveyor one by one, meanwhile, the PLC control program sends a control command to a lifting cylinder of a left furnace door of the heating furnace, so that the left furnace door is opened under the retracting action of a telescopic rod of the lifting cylinder, when the feeding manipulator places the spline hub and leaves the photoelectric proximity switch II, the PLC control program controls the left furnace door to be closed, meanwhile, the chain conveyor slowly drives the spline hub fixing device to move to the right side at a constant speed, and when the spline hub moves to the right furnace door of the heating furnace, the heating time preset by a PLC control program is utilized, an opening control instruction is automatically sent to a right furnace door, the right furnace door is opened and rotates rightwards along with the continuation of a chain conveyor, after a spline hub passes through the right furnace door, the running time of the chain conveyor is preset according to the PLC control program, the left furnace door in the uniform cooling device is automatically controlled to be opened, the spline hub continues to move rightwards and enters a closed box body of the uniform cooling device, the centrifugal fan is in an opening state, and the heat dissipated in the cooling process of the spline hub is uniformly mixed under the automatic control cooperation effect of the PLC control program by utilizing the centrifugal fan, the exhaust electric butterfly valve and the exhaust pipe, so that the forming uniformity of a glue coating layer of the spline hub can be improved; when the spline hub moves to the right box door position of the closed box body, the right box door is automatically controlled to be opened by the control time preset by the PLC control program, the spline hub moves to the right end position of the chain conveyor, meanwhile, the PLC control program sends a control signal to the discharging manipulator to enable the discharging manipulator to move to the right end position of the chain conveyor, when the photoelectric proximity switch three senses the signal of the discharging manipulator, the photoelectric proximity switch three-way PLC control program sends a signal, the PLC control program simultaneously sends a control signal for stopping the action to the stepping motor of the chain conveyor to enable the stepping motor to stop the action, at the moment, the discharging manipulator grabs and transfers the spline hub on the spline hub fixing device to a nylon powder dipping table to enable nylon powder to be adhered on the surface of the spline hub and the glue coating layer of the inner hole to form a nylon coating layer, and simultaneously, the discharging manipulator transfers the spline hub to the right conveying table, when the discharging manipulator moves to the position of the photoelectric proximity switch IV, the photoelectric proximity switch IV transmits a sensed signal to a PLC control program, the PLC control program sends a control signal for stopping rotation to a driving motor of the right material conveying table, the right material conveying table is in a stop state at the moment, after the discharging manipulator places a spline hub on a spline hub fixing device of the right material conveying table, the photoelectric proximity switch sends a sensed leaving control signal to the PLC control program when the discharging manipulator leaves the right material conveying table, the PLC control program sends a starting control signal to the driving motor of the right material conveying table, and the right material conveying table starts to operate; when the heating furnace and the uniform cooling device work normally, the thermocouple transmits the monitored real-time temperature signal to the PLC control program, and the PLC control program can control the heating temperature of the heating furnace according to the preset process temperature.

2. The automated spline hub nylon layer coating line of claim 1, wherein: the conveying table comprises a support, the support is fixedly arranged at the bottom of the chain, a driving motor is fixedly arranged at the right end of the rear side of the support, a driving shaft is fixedly arranged at the right side of the support, the driving shaft horizontally corresponds to a power output shaft of the driving motor in a front-back mode, a driven shaft is fixedly arranged at the left side of the support, chain driving gears are fixedly arranged at two ends of the driving shaft respectively, the rear end of the driving shaft is fixedly connected with the power output shaft of the driving motor, and the chain driven gears are fixedly arranged at the front end and the rear end of the driven shaft; two chains are arranged in parallel in front and back, and the chains are sleeved on the chain driving gear and the chain driven gear; the spline hub fixing devices are uniformly and longitudinally arranged on the front chain and the rear chain.

3. The automated spline hub nylon layer coating line of claim 1, wherein: clean the platform including the box, the box with dip in upper portion fixed connection in the middle of the rear side of gluey platform, the box is upper portion opening square structure confined all around, the sponge piece is placed in the box, the volume of sponge piece is less than the volume of box, the sponge piece is used for cleaning the liquid drop form of spline hub lower part and glues.

4. The automated spline hub nylon layer coating line of claim 1, wherein: the chain conveyor comprises a support frame, the support frame is fixedly arranged on the ground plane, the stepping motor is fixedly arranged at the rear side of the right end of the support frame, the main driving shaft is longitudinally and fixedly arranged at the right end of the support frame, the main driving shaft and the power output shaft of the stepping motor are horizontally arranged from front to back, and the rear end of the main driving shaft is fixedly connected with the power output shaft of the stepping motor; the driven shaft is longitudinally and fixedly arranged at the left end of the support frame, the front end and the rear end of the main driving shaft and the driven shaft are symmetrically provided with two gears, and the front end and the rear end of the conveying chain are provided with two conveying chains in parallel and are respectively sleeved on the left gear and the right gear of the main driving shaft and the driven shaft.

5. The automated spline hub nylon layer coating line of claim 1, wherein: the heating furnace comprises a furnace body, the furnace body is a hollow square body, the furnace doors are symmetrically arranged at the left side and the right side of the furnace body, the furnace doors are sleeved in chutes on the side surfaces of the furnace body, the upper end of the lifting cylinder is fixedly arranged at the middle position of the upper part of the side surface of the furnace body, the telescopic rod of the lifting cylinder is fixedly connected with the fixing seat, and the fixing seat is fixedly arranged at the middle position of the upper part of the furnace door.

6. The automated spline hub nylon layer coating line of claim 1, wherein: the uniform cooling device comprises a closed box body, the closed box body is a hollow cuboid, box doors are arranged on the left side and the right side of the closed box body, and the box doors are sleeved in sliding grooves on the left side and the right side of the closed box body; the centrifugal fans are fixedly and uniformly arranged on the upper part of the closed box body, the exhaust pipes are arranged on the closed box body at equal intervals, the exhaust electric butterfly valves are fixedly arranged in the middle of the exhaust pipes and are positioned on the upper part of the outer side of the closed box body, and the exhaust electric butterfly valves are used for controlling the opening and closing of the exhaust pipes; the box door lifting device is fixedly arranged at the middle position of the side surface of the left box door and the right box door respectively, the box door lifting device comprises a telescopic cylinder, the upper end of the telescopic cylinder is fixedly arranged at the middle position of the upper part of the side surface of the closed box body, a fixing body is fixedly arranged at the middle position of the upper part of the side surface of the box door, and a telescopic rod of the telescopic cylinder is fixedly connected with the fixing body.

7. The automatic coating production line of a spline hub nylon layer of claim 5 or 6, characterized in that: the thermocouples are uniformly and fixedly arranged on the upper part of the closed box body, extend into the closed box body and are used for measuring the real-time temperature in the closed box body; the thermocouples are fixedly arranged at the upper parts of the left side and the right side of the furnace body and extend to the inside of the furnace body.

8. The automated spline hub nylon layer coating line of claim 1, wherein: the PLC control program is fixedly connected with a first photoelectric proximity switch of the left material conveying table through a connecting wire, and the first photoelectric proximity switch is fixedly connected with a driving motor of the left material conveying table; and the PLC control program is fixedly connected with a fourth photoelectric proximity switch of the right material conveying platform through a connecting wire, and the fourth photoelectric proximity switch is fixedly connected with a driving motor of the right material conveying platform.

9. The automated spline hub nylon layer coating line of claim 1, wherein: the PLC control program is fixedly connected with the feeding manipulator and the discharging manipulator through connecting wires; the PLC control program is respectively and fixedly connected with the second photoelectric proximity switch and the third photoelectric proximity switch through connecting wires, and the second photoelectric proximity switch and the third photoelectric proximity switch are simultaneously and fixedly connected with the stepping motor.

10. The automated spline hub nylon layer coating line of claim 1, wherein: the PLC control program is fixedly connected with an electromagnetic valve of an air supply source of the lifting cylinder through a connecting wire; the PLC control program is fixedly connected with an electromagnetic valve of a telescopic cylinder air supply source of the box door lifting device through a connecting wire; the PLC control program is fixedly connected with a motor of the centrifugal fan through a connecting wire and is also fixedly connected with an exhaust electric butterfly valve; the PLC control program is fixedly connected with the thermocouple through a connecting wire.

Technical Field

The invention belongs to the technical field of automatic spraying of a nylon layer of a spline hub, and particularly relates to an automatic coating production line of the nylon layer of the spline hub.

Background

The main functions of coating the inner surface and the outer surface of the spline hub with the nylon layers are as follows: direct contact between the steel part when having avoided integral key shaft and spline hub cooperation on the one hand plays the wear-resisting effect of shock attenuation, and on the other hand spline hub outside coating nylon can improve the cooperation precision with the oil blanket, plays rust-resistant function simultaneously.

In the prior art, a manual mode is adopted for coating a nylon layer of a spline hub, firstly, manual glue dipping treatment is carried out on the spline hub, then, the spline hub is heated by a heating box, then, the spline hub is naturally cooled and dried, and finally, nylon powder is dipped to form a nylon coating layer, so that the whole technological process needs longer time, the automation degree is low, and the efficiency of the nylon coating layer of the spline hub is low; most importantly, the heating temperature and the cooling temperature of the glue coating layer on the surface of the spline hub cannot be controlled, and meanwhile, the glue coating layer of the spline hub cannot be cooled uniformly, so that the defective rate is high. The inventor develops an automatic coating production line for a nylon layer of a spline hub based on the defects in the prior art, and can well solve the problems in the prior art.

Disclosure of Invention

The automatic coating production line for the nylon layer of the spline hub is simple in structure, scientific and reasonable, high in automation degree and capable of achieving automatic and intelligent one-time coating of the nylon layer of the spline hub. According to the invention, a spline hub cleaned by blowing is placed on a material conveying table, the spline hub is placed on a glue dipping table to be dipped with glue by grabbing of a feeding manipulator, the glue coated on the surface of the spline hub is gathered to the bottom of the spline hub by short glue control (namely the feeding manipulator is used for clamping the spline hub to be vertical to the air to stay), and redundant glue forms a liquid drop shape), and then the feeding manipulator is placed on a wiping table to wipe the redundant glue; after the wiping is finished, the feeding manipulator places the spline hub on a chain plate conveyor, and the spline hub is sent into a heating furnace for automatic temperature control type heating; after the heating is accomplished along with the continuation operation of chain trigger, utilize centrifuge and exhaust system to realize the homogenization cooling process to the spline hub, form the gluey coating in the surface of spline hub and hole after the cooling of spline hub homogenization, then utilize ejection of compact manipulator to snatch the spline hub and place dipping in the nylon powder platform, evenly coat the surface and the hole of spline hub with the nylon powder, form the nylon coating at last.

The technical scheme adopted by the invention is as follows: an automatic coating production line for a spline hub nylon layer comprises a material conveying table, a left material conveying table and a right material conveying table; the feeding table is divided into a left feeding table and a right feeding table, the left feeding table is fixedly arranged at the left side position of the feeding manipulator, and the right feeding table is fixedly arranged at the right side position of the discharging manipulator; the glue dipping table is fixedly arranged at the left side position of the chain conveyor, the upper part of the glue dipping table is open, and the glue dipping table is used for coating a layer of glue on the spline hub; the wiping table is fixedly arranged at one side of the rear side of the glue dipping table; the chain conveyor is fixedly arranged at the right side position of the glue dipping table, and the spline hub fixing devices are uniformly arranged on the chain conveyor in the longitudinal direction; the spline hub fixing device comprises a connecting plate, the connecting plate is uniformly and fixedly arranged on the chain conveyor, fixing cylinders are longitudinally and equidistantly arranged on the connecting plate, the fixing cylinders are cylindrical with upper and lower openings, and the spline hubs are placed in the fixing cylinders; the heating furnace is fixedly arranged at the front side and the rear side of the upper part of the left end of the chain conveyor, and is used for heating the spline hub dipped with the glue and provided with a thermocouple; the uniform cooling device is arranged at the right side of the heating furnace and is fixedly connected with the front side and the rear side of the chain conveyor; the thermocouples are uniformly arranged at the upper part of the uniform cooling device; the photoelectric proximity switch I is fixedly arranged at the rear side position of the left end of the left material conveying table, the photoelectric proximity switch II is fixedly arranged at the middle position of the left end of the chain conveyor, the photoelectric proximity switch III is fixedly arranged at the middle position of the right end of the chain conveyor, and the photoelectric proximity switch II is fixedly arranged at the middle position of the left end of the right material conveying table; the nylon powder dipping table is fixedly arranged at the right end of the chain conveyor and is a box body with the periphery closed and the upper part opened; the discharging manipulator is fixedly arranged at the right side of the nylon powder dipping table; the PLC control program is fixedly arranged at the rear side position of the nylon powder dipping table, and the PLC control program is used for automatically controlling the left material conveying table, the right material conveying table, the feeding mechanical arm, the heating furnace, the uniform cooling device and the discharging mechanical arm to automatically cooperate through the photoelectric proximity switch I, the photoelectric proximity switch II, the photoelectric proximity switch III and the photoelectric proximity switch IV.

The conveying table comprises a support, the support is fixedly arranged at the bottom of the chain, a driving motor is fixedly arranged at the right end of the rear side of the support, a driving shaft is fixedly arranged at the right side of the support, the driving shaft horizontally corresponds to a power output shaft of the driving motor in a front-back mode, a driven shaft is fixedly arranged at the left side of the support, chain driving gears are fixedly arranged at two ends of the driving shaft respectively, the rear end of the driving shaft is fixedly connected with the power output shaft of the driving motor, and the chain driven gears are fixedly arranged at the front end and the rear end of the driven shaft; two chains are arranged in parallel in front and back, and the chains are sleeved on the chain driving gear and the chain driven gear; the spline hub fixing devices are uniformly and longitudinally arranged on the front chain and the rear chain.

Clean the platform including the box, the box with dip in upper portion fixed connection in the middle of the rear side of gluey platform, the box is upper portion opening square structure confined all around, the sponge piece is placed in the box, the volume of sponge piece is less than the volume of box, the sponge piece is used for cleaning the liquid drop form of spline hub lower part and glues.

The chain conveyor comprises a support frame, the support frame is fixedly arranged on the ground plane, the stepping motor is fixedly arranged at the rear side of the right end of the support frame, the main driving shaft is longitudinally and fixedly arranged at the right end of the support frame, the main driving shaft and the power output shaft of the stepping motor are horizontally arranged from front to back, and the rear end of the main driving shaft is fixedly connected with the power output shaft of the stepping motor; the driven shaft is longitudinally and fixedly arranged at the left end of the support frame, the front end and the rear end of the main driving shaft and the driven shaft are symmetrically provided with two gears, and the front end and the rear end of the conveying chain are provided with two conveying chains in parallel and are respectively sleeved on the left gear and the right gear of the main driving shaft and the driven shaft.

The heating furnace comprises a furnace body, the furnace body is a hollow square body, the furnace doors are symmetrically arranged at the left side and the right side of the furnace body, the furnace doors are sleeved in chutes on the side surfaces of the furnace body, the upper end of the lifting cylinder is fixedly arranged at the middle position of the upper part of the side surface of the furnace body, the telescopic rod of the lifting cylinder is fixedly connected with the fixing seat, and the fixing seat is fixedly arranged at the middle position of the upper part of the furnace door.

The uniform cooling device comprises a closed box body, the closed box body is a hollow cuboid, box doors are arranged on the left side and the right side of the closed box body, and the box doors are sleeved in sliding grooves on the left side and the right side of the closed box body; the centrifugal fans are fixedly and uniformly arranged on the upper part of the closed box body, the exhaust pipes are arranged on the closed box body at equal intervals, the exhaust electric butterfly valves are fixedly arranged in the middle of the exhaust pipes and are positioned on the upper part of the outer side of the closed box body, and the exhaust electric butterfly valves are used for controlling the opening and closing of the exhaust pipes; the box door lifting device is fixedly arranged at the middle position of the side surface of the left box door and the right box door respectively, the box door lifting device comprises a telescopic cylinder, the upper end of the telescopic cylinder is fixedly arranged at the middle position of the upper part of the side surface of the closed box body, a fixing body is fixedly arranged at the middle position of the upper part of the side surface of the box door, and a telescopic rod of the telescopic cylinder is fixedly connected with the fixing body.

The thermocouples are uniformly and fixedly arranged on the upper part of the closed box body, extend into the closed box body and are used for measuring the real-time temperature in the closed box body; the thermocouples are fixedly arranged at the upper parts of the left side and the right side of the furnace body and extend to the inside of the furnace body.

The PLC control program is fixedly connected with a first photoelectric proximity switch of the left material conveying table through a connecting wire, and the first photoelectric proximity switch is fixedly connected with a driving motor of the left material conveying table; and the PLC control program is fixedly connected with a fourth photoelectric proximity switch of the right material conveying platform through a connecting wire, and the fourth photoelectric proximity switch is fixedly connected with a driving motor of the right material conveying platform.

The PLC control program is fixedly connected with the feeding manipulator and the discharging manipulator through connecting wires; the PLC control program is respectively and fixedly connected with the second photoelectric proximity switch and the third photoelectric proximity switch through connecting wires, and the second photoelectric proximity switch and the third photoelectric proximity switch are simultaneously and fixedly connected with the stepping motor.

The PLC control program is fixedly connected with an electromagnetic valve of an air supply source of the lifting cylinder through a connecting wire; the PLC control program is fixedly connected with an electromagnetic valve of a telescopic cylinder air supply source of the box door lifting device through a connecting wire; the PLC control program is fixedly connected with a motor of the centrifugal fan through a connecting wire and is also fixedly connected with an exhaust electric butterfly valve; the PLC control program is fixedly connected with the thermocouple through a connecting wire.

The working process of the automatic coating production line of the spline hub nylon layer comprises the following steps: firstly, when the PLC control program automatically controls the feeding manipulator to move to the position of the photoelectric proximity switch I, the photoelectric proximity switch I senses the signal of the feeding manipulator, and simultaneously transmits the signal to a PLC control program, the PLC control program transmits a control instruction to a driving motor of the left material conveying table to stop the operation of the driving motor, at the moment, the feeding mechanical arm takes down the spline hub cleaned by blowing from a spline hub fixing device of the left material conveying table and transfers the spline hub cleaned by blowing to a glue dipping table, after the glue dipping action is finished, the PLC controls the feeding manipulator to lift the spline hub to stay in the air for a certain time so that the glue coated on the surface of the spline hub is accumulated downwards to form a liquid drop shape through the gravity of the glue, then the feeding manipulator transfers the spline hub to the position of the wiping table, and the liquid drop-shaped glue at the bottom of the spline hub is wiped on the sponge block, so that a glue layer with uniform thickness is formed on the surface of the spline. Then the feeding manipulator moves the spline hub to the left end of the chain conveyor, when the photoelectric proximity switch II senses the feeding manipulator, the photoelectric proximity switch II transmits a sensed signal to a PLC control program, the PLC control program controls a stepping motor of the running chain conveyor to stop rotating, at the moment, the feeding manipulator places the spline hubs on the spline hub fixing device on the chain conveyor one by one, meanwhile, the PLC control program sends a control command to a lifting cylinder of a left furnace door of the heating furnace, so that the left furnace door is opened under the retracting action of a telescopic rod of the lifting cylinder, when the feeding manipulator places the spline hub and leaves the photoelectric proximity switch II, the PLC control program controls the left furnace door to be closed, meanwhile, the chain conveyor slowly drives the spline hub fixing device to move to the right side at a constant speed, and when the spline hub moves to the right furnace door of the heating furnace, utilize PLC control program preset's heat time, automatically, send open control command to the right side furnace gate, the right side furnace gate is opened, rotate right along with chain conveyor's continuation, the spline hub passes through behind the right side furnace gate, according to PLC control program preset chain conveyor's operating duration, left side chamber door among the even cooling device of automatic control is opened, the spline hub continues to move to the right side this moment and enters into even cooling device's closed box, centrifugal fan is in the open mode this moment, utilize centrifugal fan, the automatic control cooperation at PLC control program of exhaust electric butterfly valve and blast pipe down, carry out the homogeneous mixing with the heat that the spline hub cooling process gived off, can improve the shaping homogeneity of spline hub glue coating. When the spline hub moves to the right box door position of the closed box body, the right box door is automatically controlled to be opened by the control time preset by the PLC control program, the spline hub moves to the right end position of the chain conveyor, meanwhile, the PLC control program sends a control signal to the discharging manipulator to enable the discharging manipulator to move to the right end position of the chain conveyor, when the photoelectric proximity switch three senses the signal of the discharging manipulator, the photoelectric proximity switch three-way PLC control program sends a signal, the PLC control program simultaneously sends a control signal for stopping the action to the stepping motor of the chain conveyor to enable the stepping motor to stop the action, at the moment, the discharging manipulator grabs and transfers the spline hub on the spline hub fixing device to a nylon powder dipping table to enable nylon powder to be adhered on the surface of the spline hub and the glue coating layer of the inner hole to form a nylon coating layer, and simultaneously, the discharging manipulator transfers the spline hub to the right conveying table, when the discharging manipulator moves to the position of the photoelectric proximity switch IV, the photoelectric proximity switch IV transmits a sensed signal to a PLC control program, the PLC control program sends a control signal for stopping rotation to a driving motor of the right material conveying platform, the right material conveying platform is in a stop state at the moment, after the discharging manipulator places a spline hub on a spline hub fixing device of the right material conveying platform, the photoelectric proximity switch IV sends a sensed and separated control signal to the PLC control program when the discharging manipulator leaves the right material conveying platform, the PLC control program sends an opening control signal to the driving motor of the right material conveying platform, and the right material conveying platform starts to operate. When the heating furnace and the uniform cooling device work normally, the thermocouple transmits the monitored real-time temperature signal to the PLC control program, and the PLC control program can control the heating temperature of the heating furnace according to the preset process temperature.

The glue dipping table is fixedly arranged at the left side position of the chain conveyor, the upper part of the glue dipping table is open, and the glue dipping table is used for coating a layer of glue on the spline hub; the main purposes of this arrangement are: the surface and bore of the spline hub are coated with a uniform layer of glue for adhering nylon powder.

The wiping table is fixedly arranged at one side of the rear side of the glue dipping table; clean the platform including the box, the box with dip in upper portion fixed connection in the middle of the rear side of gluey platform, the box is upper portion opening square structure confined all around, the sponge piece is placed in the box, the volume of sponge piece is less than the volume of box, the sponge piece is used for cleaning the liquid drop form of spline hub lower part and glues. The main purposes of this arrangement are: on the one hand, the bottom of the spline hub is wiped off due to the liquid drop-shaped glue formed by the gravity of the glue, so that the formation of a uniform glue coating layer is facilitated, and on the other hand, the uniformity of the glue coating layer at the bottom of the spline hub can be improved.

The chain conveyor is fixedly arranged at the right side position of the glue dipping table, and the spline hub fixing devices are uniformly arranged on the chain conveyor in the longitudinal direction; the main purposes of this arrangement are: by means of the arrangement of the spline hub fixing device, the spline hub can be stably placed on the fixing device, meanwhile, the spline hub is moved from left to right by means of the chain conveyor, and uniform moving time is provided for heating of the spline hub glue coating layer in the heating furnace and uniform cooling of the uniform cooling device.

The heating furnace is fixedly arranged at the front side and the rear side of the upper part of the left end of the chain conveyor and used for heating the spline hub dipped with the glue; the heating furnace includes the furnace body, and the furnace body is hollow cuboid, and the furnace gate symmetry sets up the left and right sides position at the furnace body, and the furnace gate suit is in the spout of furnace body side, and the fixed setting in the side upper portion intermediate position of furnace body in the upper end of lift cylinder, the telescopic link and the fixing base fixed connection of lift cylinder, the fixed upper portion intermediate position that sets up at the furnace gate of fixing base. The main purposes of this arrangement are: on the one hand, the cooperation of utilizing heating furnace and thermocouple provides the automatic controllable heating environment of temperature for the spline hub glues the coating, has improved the shaping quality that the spline hub glued the coating, has improved the shaping homogeneity that the spline hub glued the coating simultaneously. On the other hand, the arrangement of the left furnace door and the right furnace door of the heating furnace ensures that the temperature of the heating furnace is not scattered and plays a role in heat preservation; meanwhile, the passing performance of the spline hub and the chain conveyor in the heating furnace is ensured under the matching condition.

The uniform cooling device is arranged at the right side of the heating furnace and is fixedly connected with the front side and the rear side of the chain conveyor; the uniform cooling device comprises a closed box body, the closed box body is a hollow cuboid, box doors are arranged on the left side and the right side of the closed box body, and the box doors are sleeved in sliding grooves on the left side and the right side of the closed box body; the centrifugal fans are fixedly and uniformly arranged on the upper part of the closed box body, the exhaust pipes are arranged on the closed box body at equal intervals, the exhaust electric butterfly valves are fixedly arranged in the middle of the exhaust pipes and are positioned on the upper part of the outer side of the closed box body, and the exhaust electric butterfly valves are used for controlling the opening and closing of the exhaust pipes; the box door lifting device is fixedly arranged at the middle position of the side surface of the left box door and the right box door respectively, the box door lifting device comprises a telescopic cylinder, the upper end of the telescopic cylinder is fixedly arranged at the middle position of the upper part of the side surface of the closed box body, a fixing body is fixedly arranged at the middle position of the upper part of the side surface of the box door, and a telescopic rod of the telescopic cylinder is fixedly connected with the fixing body. The main purposes of this arrangement are: on the one hand, the stability of keeping the cooling temperature in the uniform cooling device is achieved by the arrangement of the left box door and the right box door, and meanwhile, the matching of the spline hub and the chain conveyor and the passing performance in the uniform cooling device can be guaranteed. On the other hand, the circulation of cold zone temperature is formed in the uniform cooling device by utilizing the matching action of the centrifugal fan, the exhaust electric butterfly valve and the exhaust pipe, so that the effect of uniformly mixing and cooling the temperature is achieved, and meanwhile, the stability of the temperature in the uniform cooling device is also ensured. On the other hand, by means of automatic matching of the thermocouple and the PLC control program arranged in the uniform cooling device, the cooling temperature in the uniform cooling device can be monitored in real time, the process cooling temperature of the spline hub glue coating layer is guaranteed, and the cooling forming quality of the spline hub glue coating layer and the forming uniformity of the glue coating layer are improved.

The PLC control program is fixedly connected with a first photoelectric proximity switch of the left material conveying table through a connecting wire, and the first photoelectric proximity switch is fixedly connected with a driving motor of the left material conveying table; and the PLC control program is fixedly connected with a fourth photoelectric proximity switch of the right material conveying platform through a connecting wire, and the fourth photoelectric proximity switch is fixedly connected with a driving motor of the right material conveying platform. The PLC control program is fixedly connected with the feeding manipulator and the discharging manipulator through connecting wires; the PLC control program is respectively and fixedly connected with the second photoelectric proximity switch and the third photoelectric proximity switch through connecting wires, and the second photoelectric proximity switch and the third photoelectric proximity switch are simultaneously and fixedly connected with the stepping motor. The PLC control program is fixedly connected with an electromagnetic valve of an air supply source of the lifting cylinder through a connecting wire; the PLC control program is fixedly connected with an electromagnetic valve of a telescopic cylinder air supply source of the box door lifting device through a connecting wire; the PLC control program is fixedly connected with a motor of the centrifugal fan through a connecting wire and is also fixedly connected with an exhaust electric butterfly valve; the PLC control program is fixedly connected with the thermocouple through a connecting wire. The main purposes of this arrangement are: the PLC control program, the photoelectric proximity switch I, the photoelectric proximity switch II, the photoelectric proximity switch III, the photoelectric proximity switch IV, the electromagnetic valve of the air supply source of the lifting cylinder, the electromagnetic valve of the air supply source of the telescopic cylinder and the thermocouple are connected, so that automatic and intelligent matching among the left material conveying table, the right material conveying table, the feeding mechanical arm, the chain conveyor, the heating furnace, the uniform cooling device and the discharging mechanical arm is realized.

The invention has the beneficial effects that: the invention provides an automatic coating production line of a nylon layer of a spline hub, which has the advantages of simple structure, scientific and reasonable structure and high automation degree, and realizes the automatic and intelligent one-time coating of the nylon layer of the spline hub; the coating efficiency of the nylon layer of the spline hub is improved, the intelligent temperature control of the glue coating layer of the spline hub is realized, and the heating uniformity is improved; the temperature control type and uniform cooling of the spline hub glue coating layer are realized, and the forming quality of the spline hub glue coating layer is improved.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a front view of the heating furnace, the chain scraper conveyor and the uniform cooling device of the present invention;

FIG. 3 is a top view of the material table of the present invention;

FIG. 4 is an enlarged view of a portion of the glue dipping station of the present invention;

FIG. 5 is an enlarged view of a portion of the heating furnace of the present invention;

FIG. 6 is a side view of a furnace door of the heating furnace of the present invention;

FIG. 7 is a side view of the door of the uniform cooling apparatus of the present invention;

FIG. 8 is an elevation view of the splined hub securing device of the present invention;

FIG. 9 is a top view of the splined hub securing device of the present invention;

the labels in the figure are: 1. a material conveying table, 1.1, a bracket, 1.2, a driving motor, 1.3, a chain, 1.4, a chain driving gear, 1.5, a chain driven gear, 1.6, a driving shaft, 1.7, a driven shaft, 2, a left material conveying table, 3, a right material conveying table, 4, a feeding manipulator, 5, a glue dipping table, 6, a wiping table, 61, a box body, 62, a sponge block, 7, a chain conveyor, 71, a support frame, 72, a stepping motor, 73, a main driving shaft, 74, a driven shaft, 75, a conveying chain, 76, a gear, 8, a spline hub fixing device, 81, a connecting plate, 82, a fixing cylinder, 83, a spline hub, 9, a heating furnace, 91, a furnace body, 92, a furnace door, 93, a lifting cylinder, 94, a fixing seat, 10, a uniform cooling device, 101, a closed box body, 102, a box door, 103, a centrifugal fan, 104, an exhaust electric butterfly valve, 105, an exhaust pipe, 106, a lifting device, 1061, a telescopic cylinder, 1062. the device comprises a fixed body, 11, a thermocouple, 12, photoelectric proximity switches I and 13, photoelectric proximity switches II and 14, photoelectric proximity switches III and 15, photoelectric proximity switches IV and 16, a nylon powder dipping table, 17, a discharging manipulator, 18 and a PLC control program.

Detailed Description

The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.

As shown in the figure, the invention provides an automatic coating production line of a spline hub nylon layer, which comprises a material conveying table 1, a left material conveying table 2 and a right material conveying table 3; the feeding table 1 is divided into a left feeding table 2 and a right feeding table 3, the left feeding table 2 is fixedly arranged at the left side position of the feeding manipulator 4, and the right feeding table 3 is fixedly arranged at the right side position of the discharging manipulator 17; the glue dipping table 5 is fixedly arranged at the left side of the chain conveyor 7, the upper part of the glue dipping table 5 is in an open shape, and the glue dipping table 5 is used for coating a layer of glue on the spline hub 83; the wiping table 6 is fixedly arranged at one side of the rear side of the glue dipping table 5; the chain conveyor 7 is fixedly arranged at the right side position of the glue dipping table 5, and the spline hub fixing devices 8 are longitudinally and uniformly arranged on the chain conveyor 7; the spline hub fixing device 8 comprises a connecting plate 81, the connecting plate 81 is uniformly and fixedly arranged on the chain conveyor 7, fixing cylinders 82 are longitudinally and equidistantly arranged on the connecting plate 81, the fixing cylinders 82 are cylindrical with upper and lower openings, and spline hubs 83 are placed in the fixing cylinders 82; the heating furnace 9 is fixedly arranged at the front side and the rear side of the upper part of the left end of the chain conveyor 7, the heating furnace 9 is used for heating the spline hub 83 dipped with glue, and a thermocouple 11 is arranged in the heating furnace 9; the uniform cooling device 10 is arranged at the right side of the heating furnace 9, and the uniform cooling device 10 is fixedly connected with the front side and the rear side of the chain conveyor 7; the thermocouples 11 are uniformly arranged at the upper position of the uniform cooling device 10; the photoelectric proximity switch I12 is fixedly arranged at the rear side position of the left end of the left material conveying table 2, the photoelectric proximity switch II 13 is fixedly arranged at the middle position of the left end of the chain conveyor 7, the photoelectric proximity switch III 14 is fixedly arranged at the middle position of the right end of the chain conveyor 7, and the photoelectric proximity switch II 15 is fixedly arranged at the middle position of the left end of the right material conveying table 3; the nylon powder dipping table 16 is fixedly arranged at the right end of the chain conveyor 7, and the nylon powder dipping table 16 is a box body with the periphery closed and the upper part opened; the discharging manipulator 17 is fixedly arranged at the right side position of the nylon powder dipping table 16; PLC control program 18 is fixed to be set up dip in the rear side position of nylon powder platform 16, PLC control program 18 is used for automatic control left side defeated material platform 2, right side defeated material platform 3, feeding manipulator 4, heating furnace 9, even cooling device 10 and the automatic coordination action between the ejection of compact manipulator 17 through photoelectricity proximity switch one 12, photoelectricity proximity switch two 13, photoelectricity proximity switch three 14 and photoelectricity proximity switch four 15.

The material conveying platform 1 comprises a support 1.1, the support 1.1 is fixedly arranged at the bottom of the chain 1.3, a driving motor 1.2 is fixedly arranged at the right end of the rear side of the support 1.1, a driving shaft 1.6 is fixedly arranged at the right side of the support 1.1, the driving shaft 106 is horizontally corresponding to the power output shaft of the driving motor 1.2 in the front-back direction, a driven shaft 1.7 is fixedly arranged at the left side of the support 1.1, chain driving gears 1.4 are respectively fixedly arranged at the two ends of the driving shaft 1.6, the rear end of the driving shaft 1.6 is fixedly connected with the power output shaft of the driving motor 1.2, and chain driven gears 1.5 are fixedly arranged at the front and rear ends of the driven shaft 1.7; two chains 1.3 are arranged in parallel in the front and at the back, and the chains 1.3 are sleeved on the chain driving gear 1.4 and the chain driven gear 1.5; the spline hub fixing devices 8 are uniformly and longitudinally arranged on the front chain 1.3 and the rear chain 1.3.

Clean platform 6 and include box 61, upper portion fixed connection in the middle of box 61 and the rear side that dips in gluey platform 5, box 61 is upper portion opening square structure all around confined, and sponge piece 62 is placed in box 61, and the volume of sponge piece 62 is less than the volume of box 61, and sponge piece 62 is used for cleaning the liquid drop form of spline hub 83 lower part and glues.

The chain conveyor 7 comprises a support frame 71, the support frame 71 is fixedly arranged on the ground level, a stepping motor 72 is fixedly arranged at the rear side of the right end of the support frame 71, a main driving shaft 73 is longitudinally and fixedly arranged at the right end of the support frame 71, the main driving shaft 73 and a power output shaft of the stepping motor 72 are horizontally arranged from front to back, and the rear end of the main driving shaft 73 is fixedly connected with the power output shaft of the stepping motor 73; the driven shaft 74 is longitudinally and fixedly arranged at the left end of the supporting frame 71, the front end and the rear end of the driving shaft 73 and the driven shaft 74 are symmetrically provided with two gears 76, and the two conveying chains 75 are arranged in parallel in the front and the rear and are respectively sleeved on the left gear 76 and the right gear 76 of the driving shaft 73 and the driven shaft 74.

The heating furnace 9 comprises a furnace body 91, the furnace body 91 is a hollow square body, furnace doors 92 are symmetrically arranged at the left side and the right side of the furnace body 91, the furnace doors 92 are sleeved in chutes on the side surfaces of the furnace body 91, the upper end of a lifting cylinder 93 is fixedly arranged at the middle position of the upper part of the side surface of the furnace body 91, a telescopic rod of the lifting cylinder 93 is fixedly connected with a fixed seat 94, and the fixed seat 94 is fixedly arranged at the middle position of the upper part of the furnace doors.

The uniform cooling device 10 comprises a closed box body 101, the closed box body 101 is a hollow cuboid, the left side and the right side of the closed box body 101 are provided with box doors 102, and the box doors 102 are sleeved in sliding grooves on the left side and the right side of the closed box body 101; the centrifugal fans 103 are fixedly arranged on the upper portion of the closed box body 101, the exhaust pipes 105 are arranged on the closed box body 101 at equal intervals, the exhaust electric butterfly valve 104 is fixedly arranged in the middle of the exhaust pipes 105, the exhaust electric butterfly valve 104 is located on the upper portion of the outer side of the closed box body 101, and the exhaust electric butterfly valve 104 is used for controlling opening and closing of the exhaust pipes 105; the box door lifting device 106 is respectively and fixedly arranged at the middle position of the side surfaces of the left and right box doors 102, the box door lifting device 106 comprises a telescopic cylinder 1061, the upper end of the telescopic cylinder 1061 is fixedly arranged at the middle position of the upper part of the side surface of the closed box body 101, a fixing body 1062 is fixedly arranged at the middle position of the upper part of the side surface of the box door, and a telescopic rod of the telescopic cylinder 1061 is fixedly connected with the fixing body 1062.

The thermocouples 11 are uniformly and fixedly arranged at the upper part of the closed box body 101, the thermocouples 11 extend into the closed box body 101, and the thermocouples 11 are used for measuring the real-time temperature in the closed box body 101; thermocouples 11 are fixedly provided at upper positions of left and right sides of the furnace body 91, and the thermocouples 11 extend to the inside of the furnace body.

The PLC control program 18 is fixedly connected with a first photoelectric proximity switch 12 of the left material conveying table 2 through a connecting wire, and meanwhile, the first photoelectric proximity switch 12 is fixedly connected with a driving motor 1.2 of the left material conveying table 2; the PLC control program 18 is fixedly connected with a photoelectric proximity switch four 15 of the right material conveying platform 3 through a connecting wire, and meanwhile, the photoelectric proximity switch four 15 is fixedly connected with a driving motor 1.2 of the right material conveying platform 3.

The PLC control program 18 is fixedly connected with the feeding manipulator 4 and the discharging manipulator 17 through connecting wires; the PLC control program 18 is respectively and fixedly connected with the second photoelectric proximity switch 13 and the third photoelectric proximity switch 14 through connecting wires, and the second photoelectric proximity switch 13 and the third photoelectric proximity switch 14 are simultaneously and fixedly connected with the stepping motor 72.

The PLC control program 18 is fixedly connected with an electromagnetic valve of an air supply source of the lifting cylinder 93 through a connecting wire; the PLC control program 18 is fixedly connected with an electromagnetic valve of an air supply source of a telescopic cylinder 1061 of the box door lifting device 106 through a connecting wire; the PLC control program 18 is fixedly connected with a motor of the centrifugal fan 103 through a connecting wire and is also fixedly connected with an exhaust electric butterfly valve 104; the PLC control program 18 is fixedly connected with the thermocouple 11 through a connecting wire.

The working process of the automatic coating production line of the spline hub nylon layer comprises the following steps: firstly, when the PLC control program 18 automatically controls the feeding manipulator 4 to move to the position of the photoelectric proximity switch I12, the photoelectric proximity switch I12 senses a signal of the feeding manipulator 4 and simultaneously transmits the signal to the PLC control program 18, the PLC control program 18 transmits a control command to the driving motor 1.2 of the left material conveying table 2 to stop the movement of the driving motor, at the moment, the feeding manipulator 4 takes off the spline hub 83 cleaned by blowing from the spline hub fixing device 8 of the left material conveying table 2, transfers the spline hub 83 to the glue dipping table 5 to dip liquid glue, after the glue dipping movement is finished, the PLC control program 18 controls the feeding manipulator to lift the spline hub 83 to stay in the air for a certain time, so that the glue wrapped on the surface of the spline hub 83 is accumulated downwards to form a liquid drop shape by the gravity of the spline hub, then the feeding manipulator 4 transfers the spline hub 83 to the position of the wiping table 6 to wipe the liquid drop shape glue at the bottom of the spline hub 83 onto the sponge block 62, a layer of glue of uniform thickness is formed on the surface of the spline 83. Then the feeding manipulator 4 moves the spline hub 83 to the left end position of the chain conveyor 7, when the photoelectric proximity switch 13 senses the feeding manipulator 4, the photoelectric proximity switch 13 transmits a sensed signal to the PLC control program 18, the PLC control program 18 controls the stepping motor 72 of the running chain conveyor 7 to stop rotating, at this time, the feeding manipulator 4 places the spline hubs 83 on the spline hub fixing device 8 on the chain conveyor 7 one by one, meanwhile, the PLC control program 18 sends a control command to the lifting cylinder 93 of the left oven door 92 of the heating furnace 9, so that the left oven door 92 opens the left oven door 92 under the retracting action of the telescopic rod of the lifting cylinder 92, when the feeding manipulator 4 places the spline hub 83 and leaves the photoelectric proximity switch 13, the PLC control program 18 controls the left oven door 92 to close, and at the same time, the chain conveyor 7 slowly drives the spline hub fixing device 8 to move to the right at a constant speed, when the spline hub 83 moves to the right oven door position of the heating furnace 9, the heating time preset by the PLC control program 18 is utilized to automatically send an opening control command to the right oven door 92, the right oven door 92 is opened, and after the spline hub 83 passes through the right oven door along with the continuous rightward rotation of the chain conveyor 7, the running time of the chain conveyer 7 is preset according to the PLC control program 18, the left box door in the uniform cooling device 10 is automatically controlled to be opened, at the moment, the spline hub 83 continuously moves towards the right side to enter the closed box body 101 of the uniform cooling device 10, at the moment, the centrifugal fan 103 is in an open state, and the heat dissipated in the cooling process of the spline hub 83 is uniformly mixed under the automatic control cooperation of the PLC control program 18 by utilizing the centrifugal fan 103, the exhaust electric butterfly valve 104 and the exhaust pipe 105, so that the forming uniformity of the glue coating layer of the spline hub 83 can be improved. When the spline hub 83 moves to the right door 102 of the closed box 101, the PLC control program 18 automatically controls the right door 102 to open according to the preset control time, at the same time, the spline hub 83 moves to the right end of the chain conveyor 7, and simultaneously, the PLC control program 18 sends a control signal to the discharging manipulator 17 to enable the discharging manipulator 17 to move to the right end of the chain conveyor 7, when the photoelectric proximity switch three 14 senses the signal of the discharging manipulator 17, the photoelectric proximity switch three 14 sends a signal to the PLC control program 18, the PLC control program 18 simultaneously sends a control signal for stopping the operation to the stepping motor 72 of the chain conveyor 7 to enable the stepping motor 72 to stop the operation, at the same time, the discharging manipulator 17 grabs the spline hub 83 on the spline hub fixing device 8 and transfers the grabbed spline hub 83 to the nylon powder dipping platform 16 to enable the nylon powder to adhere to the surface of the spline hub 83 and the glue coating layer of the inner hole, a nylon coating layer is formed, meanwhile, the discharging manipulator 17 transfers the spline hub 83 to the right material conveying table 3, when the discharging manipulator 17 moves to the position of the photoelectric proximity switch four 15, the photoelectric proximity switch four 15 transmits a sensed signal to the PLC control program 18, the PLC control program 18 sends a control signal for stopping rotation to the driving motor 1.2 of the right material conveying table 3, at the moment, the right material conveying table 3 is in a stop state, after the discharging manipulator 17 places the spline hub 83 on the spline hub fixing device 8 of the right material conveying table 3, the photoelectric proximity switch four 15 is separated from the right material conveying table 3, at the moment, the PLC control program 18 sends a control signal for sensing to leave to the PLC control program 18, the PLC control program 18 sends a control signal for starting to the driving motor 1.2 of the right material conveying table 3, and the right material conveying table 3 starts to operate. When the heating furnace 9 and the uniform cooling device 10 work normally, the thermocouple 11 transmits the monitored real-time temperature signal to the PLC control program 18, and the PLC control program 18 can control the heating temperature of the heating furnace 9 according to the preset process temperature.

Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.