Mouth-shaped plate electromagnetic heating device

Abstract

The invention belongs to the technical field of tire production equipment, and particularly relates to an electromagnetic heating device for a mouth-shaped plate. The invention provides the square plate electromagnetic heating device which is efficient, energy-saving and convenient to use. The electromagnetic heating device comprises a heating box and is characterized in that a cabin door is arranged on one side of the heating box, an electromagnetic heating bin is arranged in the cabin door, an electromagnetic heating element is arranged outside the electromagnetic heating bin in the box body, and a temperature measuring mechanism is further arranged in the electromagnetic heating bin. Only one to-be-used mouth-shaped plate and one to-be-used pre-mouth-shaped plate are heated each time, electromagnetic induction heating is adopted, only 2-5 minutes are needed for heating to the process temperature each time, the heating speed is high, heating is achieved when the device is used, and energy is saved. The electromagnetic induction heating mode directly acts on the workpiece, indirect heat conduction is avoided, the heating efficiency is high, and the heat loss is small; the equipment is small in size and small in occupied space.

Description

Technical Field

[0001] The invention belongs to the technical field of tire production equipment, and in particular relates to an electromagnetic heating device for a die plate. Background Art

[0002] During the tire manufacturing process, the tread composite extruder needs to frequently replace the die plate and pre-die plate according to different production needs. Before replacement, the die plate and pre-die plate need to be preheated to ensure the stability of the extrusion process and product quality. The traditional heating method usually puts all types of die plates and pre-die plates into the preheating box, uses a resistive infrared heating tube combined with hot air circulation, and turns on the heating 24 hours a day to reach the temperature required by the process and can be used as needed. However, this method has the following problems: 1. Long opening time: The preheating box needs to be heated continuously for 24 hours to meet the production needs of on-demand use, which wastes a lot of energy.

[0003] 2. Limited working mode: Because it takes a long time to heat to reach the process temperature, all types of die plates and pre-die plates need to be loaded into the box and heated repeatedly to achieve the purpose of taking them out when needed. As a result, many seldom used die plates and pre-die plates are also heated for a long time in the heating box, resulting in energy waste.

[0004] 3. Limited heating method: The resistive infrared heating tube is combined with hot air circulation, and air is used as the heating conduction medium. The heat conduction efficiency is low, the heating time is long, and energy waste is caused.

[0005] 4. Large heat loss: The temperature inside the preheating box is usually as high as 120°C. Even if the outer wall of the box is filled with insulation material, a large amount of heat will be conducted, causing energy waste. The heat will also be dissipated into the air, which will also increase the ambient temperature of the workshop and affect the working environment.

[0006] 5. Limited operation mode: Because of the need to frequently take and put the mouth plate and pre-mouth into the heating box, the heating box is large in size. Every time the door of the heating box is opened, a lot of heat will be lost, resulting in energy waste.

[0007] 6. The equipment is large and occupies a large space: The traditional preheating box has to meet the needs of more die plates and heating the die plates at the same time. The equipment is large in size and occupies more production space, affecting the flexibility of the production line and the layout of the workshop. Summary of the invention

[0008] The present invention aims at solving the above problems and provides a high-efficiency, energy-saving and easy-to-use electromagnetic heating device for a die plate.

[0009] In order to achieve the above-mentioned purpose of the present invention, the present invention adopts the following technical scheme, which includes a heating box, characterized in that: a cabin door is arranged on one side of the heating box, the cabin door is an electromagnetic heating chamber, an electromagnetic heating element is arranged inside the box body and located outside the electromagnetic heating chamber, and a temperature measuring mechanism is also arranged inside the electromagnetic heating chamber.

[0010] As a preferred solution of the present invention, a workpiece removal auxiliary mechanism is provided on the top of the heating box, and the workpiece removal auxiliary mechanism includes a shell fixedly arranged on the top of the heating box, a pull rod is arranged in the shell through a support bearing, and a handle connected to the pull rod is arranged on the outside of the shell corresponding to the side of the cabin door; a movable frame that moves with the pull rod is provided in the shell, and a push rod is provided on the movable frame, and the end of the push rod extends into the electromagnetic heating chamber from the inner cabin wall of the electromagnetic heating chamber.

[0011] As another preferred embodiment of the present invention, the temperature measuring mechanism includes a bracket arranged in the box body, a connecting rod is arranged on the bracket, a temperature sensor is arranged at the end of the connecting rod, and one end of the connecting rod with the temperature sensor passes through the wall of the electromagnetic heating chamber and is arranged in the electromagnetic heating chamber.

[0012] Furthermore, a buffer spring is provided between the bracket and the connecting rod.

[0013] As a third preferred embodiment of the present invention, the lower end of the hatch is connected to the heating box via a hinge, and the heating box is provided with a lock that cooperates with the upper end of the hatch.

[0014] As a fourth preferred embodiment of the present invention, an exhaust fan is provided on the heating box, and the exhaust fan is connected to the interior of the heating box and the external space of the electromagnetic heating chamber.

[0015] As a fifth preferred embodiment of the present invention, the electromagnetic heating chamber, the hatch, the workpiece removal auxiliary mechanism, and the temperature measuring mechanism are all provided in two pieces for heating the die plate and the pre-die plate simultaneously.

[0016] As a sixth preferred embodiment of the present invention, an electric control cabinet is arranged below the heating box, and a controller connected to the electromagnetic heating element and the temperature sensor is arranged above the heating box.

[0017] The beneficial effects of the present invention are as follows: 1. Due to the structural characteristics of the present invention, the electromagnetic heating element is used to heat the die plate and the pre-die plate, which is highly efficient. Each heating only takes 2 to 5 minutes to meet the use requirements, and the device can be heated immediately after use without long-term power supply, thereby achieving energy saving. At the same time, due to its fast heating speed, only one die plate and / or pre-die plate can be heated each time, and the electromagnetic heating chamber can be set in accordance with the size of the die plate or the pre-die plate, which greatly reduces the volume of the present invention.

[0018] 2. Energy saving and high efficiency: Electromagnetic induction heating directly acts on the die plate or pre-die plate body, causing eddy current effect inside to generate self-heating, avoiding heat loss during hot air conduction, greatly improving energy utilization and reducing overall energy consumption.

[0019] 3. Accurate temperature control: The temperature sensor is used to directly measure the temperature of the die plate, and closed-loop adjustment can be performed through the controller to ensure that the die plate is heated evenly to meet process requirements.

[0020] 4. Convenient operation, safe and reliable: An auxiliary mechanism for removing the workpiece is set up to facilitate the removal of the heated workpiece. It is easy to use, safe and reliable.

[0021] 5. Durable equipment and low maintenance cost: The electromagnetic induction heating system has no wearing parts and a long service life, which reduces the replacement and maintenance requirements of traditional heating tubes, improves equipment stability, and reduces long-term operating costs.

[0022] The present invention significantly improves the preheating efficiency of the die plate by optimizing the heating method, while reducing energy consumption and heat loss, and provides a more intelligent, efficient and energy-saving heating solution for the tire manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the internal structure of the heating box.

[0025] Figure 3 yes Figure 2 A partial enlarged view of .

[0026] In the accompanying drawings, 1 is a heating box, 2 is a workpiece removal auxiliary mechanism, 3 is a controller, 4 is a handle, 5 is a lock, 6 is a hatch, 7 is an electric control cabinet, 8 is a shell, 9 is a mobile rack, 10 is an exhaust fan, 11 is a temperature measuring mechanism, 12 is an electromagnetic heating chamber, 13 is an electromagnetic heating element, 14 is a push rod, 15 is a connecting rod, 16 is a buffer spring, and 17 is a temperature sensor. DETAILED DESCRIPTION

[0027] The present invention comprises a heating box 1, which heats only one die plate and pre-die plate to be used each time, adopts electromagnetic induction heating, and only takes 2-5 minutes to heat to the process temperature for a single time, has a fast heating speed, can be heated immediately after use, and saves energy. The electromagnetic induction heating method directly acts on the workpiece itself, has no indirect heat conduction, has high heating efficiency, and has low heat loss; the equipment is small in size and occupies little space.

[0028] A door 6 is provided on one side of the heating box 1 , and an electromagnetic heating chamber 12 is provided inside the door 6 . An electromagnetic heating element 13 is provided outside the electromagnetic heating chamber 12 in the box body, and a temperature measuring mechanism 11 is also provided inside the electromagnetic heating chamber 12 .

[0029] A workpiece removal auxiliary mechanism 2 is arranged on the top of the heating box 1, and the workpiece removal auxiliary mechanism 2 includes a shell 8 fixedly arranged on the top of the heating box 1, a pull rod is arranged in the shell 8 through a supporting bearing, and a handle 4 connected to the pull rod is arranged on the outside of the shell 8 corresponding to the side of the cabin door 6; a movable frame 9 that moves with the pull rod is arranged in the shell 8, and a push rod 14 is arranged on the movable frame 9, and the end of the push rod 14 extends into the electromagnetic heating chamber 12 from the inner cabin wall of the electromagnetic heating chamber 12.

[0030] By providing the workpiece taking-out auxiliary mechanism 2, the taking-out operation of the heated die plate and the pre-die plate is simplified, direct manual contact with the high-temperature workpiece is avoided, and the operation safety and convenience are improved.

[0031] The temperature measuring mechanism 11 includes a bracket arranged in the box body, a connecting rod 15 is arranged on the bracket, a temperature sensor 17 is arranged at the end of the connecting rod 15, and one end of the connecting rod 15 with the temperature sensor 17 passes through the wall of the electromagnetic heating chamber 12 and is arranged in the electromagnetic heating chamber 12.

[0032] Two push rods 14 are arranged in parallel and transversely on the moving frame 9 , and the connecting rod 15 of the temperature measuring mechanism 11 is arranged between the two push rods 14 .

[0033] A buffer spring 16 is provided between the bracket and the connecting rod 15 .

[0034] By arranging the buffer spring 16 between the bracket and the connecting rod 15, the impact of the workpiece on the temperature measuring mechanism 11 can be effectively reduced to avoid damage.

[0035] The lower end of the hatch 6 is connected to the heating box 1 via a hinge, and the heating box 1 is provided with a latch 5 that cooperates with the upper end of the hatch 6 .

[0036] The hinge and lock 5 structure is adopted to make the hatch 6 more stable when opened and closed, and to prevent the hatch 6 from loosening or not sealing tightly due to the high temperature environment, so as to ensure the uniform temperature in the heating chamber and improve the heating efficiency.

[0037] The heating box 1 is provided with an exhaust fan 10 , which is connected to the interior of the heating box 1 and the exterior space of the electromagnetic heating chamber 12 .

[0038] By providing the exhaust fan 10, air can circulate between the outer space of the heating chamber and the inner space of the heating box 1, which helps to dissipate heat, prevent the electrical control part from overheating, and improve the stability and service life of the equipment.

[0039] The electromagnetic heating chamber 12, the hatch 6, the workpiece removal auxiliary mechanism 2, and the temperature measuring mechanism 11 are all provided in pairs, and are used to heat the die plate and the pre-die plate simultaneously.

[0040] The double heating chamber design can heat the die plate and pre-die plate at the same time, improving production efficiency, reducing waiting time and optimizing production rhythm.

[0041] An electric control cabinet 7 is arranged below the heating box 1 , and a controller 3 connected to the electromagnetic heating element 13 and the temperature sensor 17 is arranged above the heating box 1 .

[0042] By independently arranging the electric control cabinet 7 below the heating box 1, the control system of the electromagnetic heating element 13 and the temperature sensor 17 is more centralized, which is convenient for maintenance, and at the same time, the electric control part is prevented from being affected by high temperature, thereby improving the stability and safety of the equipment.

[0043] When the present invention is used, the pre-used die plate and the pre-die plate are respectively placed in different electromagnetic heating chambers 12, the hatch 6 is closed, and the hatch 6 is locked by the latch 5, and the electromagnetic heating element 13 is controlled to start by the controller 3 to heat the workpieces in the two electromagnetic heating chambers 12 respectively; the data is detected by the temperature sensor 17, and the power of the electromagnetic heating element 13 is controlled by the controller 3, so that the function of precise heating can be achieved.

[0044] After heating is completed, the hatch 6 is opened, and the handle 4 of the workpiece removal auxiliary mechanism 2 is pulled. The handle 4 drives the pull rod to move, and the pull rod drives the movable frame 9 to move. The push rod 14 on the movable frame 9 extends into the electromagnetic heating chamber 12 to push the workpiece out, completing the heating work of the die plate and the pre-die plate.

[0045] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. A die plate electromagnetic heating device, comprising a heating box (1), characterized in that: A door (6) is provided on one side of the heating box (1), an electromagnetic heating chamber (12) is located inside the door (6), an electromagnetic heating element (13) is provided outside the electromagnetic heating chamber (12) inside the box, and a temperature measuring mechanism (11) is also provided inside the electromagnetic heating chamber (12).

2. The die plate electromagnetic heating device according to claim 1, characterized in that: A workpiece removal auxiliary mechanism (2) is arranged on the top of the heating box (1), and the workpiece removal auxiliary mechanism (2) comprises a shell (8) fixedly arranged on the top of the heating box (1), a pull rod is arranged in the shell (8) through a support bearing, and a handle (4) connected to the pull rod is arranged on the outside of the shell (8) at a side corresponding to the cabin door (6); a movable frame (9) moving with the pull rod is arranged in the shell (8), and a push rod (14) is arranged on the movable frame (9), and the end of the push rod (14) extends from the inner cabin wall of the electromagnetic heating chamber (12) into the electromagnetic heating chamber (12).

3. The die plate electromagnetic heating device according to claim 1, characterized in that: The temperature measuring mechanism (11) comprises a bracket arranged in a box body, a connecting rod (15) is arranged on the bracket, a temperature sensor (17) is arranged at the end of the connecting rod (15), and one end of the connecting rod (15) having the temperature sensor (17) passes through the wall of the electromagnetic heating chamber (12) and is arranged in the electromagnetic heating chamber (12).

4. The electromagnetic heating device for the die plate according to claim 3 is characterized in that: A buffer spring (16) is provided between the bracket and the connecting rod (15).

5. The electromagnetic heating device for die plate according to claim 1, characterized in that: The lower end of the door (6) is connected to the heating box (1) via a hinge, and the heating box (1) is provided with a latch (5) that cooperates with the upper end of the door (6).

6. The electromagnetic heating device for die plate according to claim 1, characterized in that: The heating box (1) is provided with an exhaust fan (10), and the exhaust fan (10) is in communication with the interior of the heating box (1) and the exterior space of the electromagnetic heating chamber (12).

7. The electromagnetic heating device for die plate according to claim 1, characterized in that: The electromagnetic heating chamber (12), the hatch (6), the workpiece removal auxiliary mechanism (2), and the temperature measuring mechanism (11) are all provided in pairs and are used to heat the die plate and the pre-die plate simultaneously.

8. The electromagnetic heating device for die plate according to claim 1, characterized in that: An electric control cabinet (7) is arranged below the heating box (1), and a controller (3) connected to the electromagnetic heating element (13) and the temperature sensor (17) is arranged above the heating box (1).

Images