Automatic airflow bulking machine

Abstract

The utility model relates to the field of material bulking equipment, and provides an automatic airflow bulking machine which comprises a rack, a tank cover, a tank body, a locking bow, a lock hook, an uncovering fork rod and an uncovering cylinder, the tank cover is connected to the locking bow in a bolted mode, the locking bow is provided with a lock hook, the locking bow and the lock hook are in pin joint with the tank body, a cover opening fork rod is arranged at the opposite position of the end of the lock hook, the cover opening fork rod is connected with a cover opening air cylinder, the cover opening fork rod is provided with a V-shaped structure and used for conducting positioning deviation rectification on the end of the lock hook, and the tank cover and the tank body are turned over together when turned over up and down. And after the pressure is reached, the plc informs the uncovering air cylinder to execute the action, the uncovering fork rod is pushed to push the lock hook, the lock hook loses the locking force on the bow, and the tank cover on the bow is locked to be opened. The uncovering and puffing machine is accurate in positioning during uncovering and puffing, high in automation degree, stable in quality of puffed products, safer, good in reliability and low in failure rate.

Description

Technical Field

[0001] The utility model relates to the field of material puffing equipment, in particular to an automatic airflow puffing machine. Background Art

[0002] Large airflow puffing machine is a kind of grain puffing equipment, which consists of puffing tank, heating device, rotating device, safety protection device, vibration reduction device, frame, base and other parts. Its working principle is to put a certain material into a sealed cast steel tank with a lid, heat it with liquefied gas, coal gas or coal, and rotate the tank at a certain speed to make the material evenly heated. With continuous heating, the temperature in the tank gradually rises, and the water on the surface of the material will escape and vaporize, forming a certain pressure in the tank. When the water content of the material is controlled to be about 5% to 8%, the pressure in the tank will reach 0.2 to 1.25Mpa (different materials have different pressures). At this time, the material has been basically matured in the tank. If the lid of the tank is suddenly opened, the high temperature and high pressure state is suddenly released to normal temperature and pressure. The material will be filled with air at the water loss position and become larger, its structure will change, and the volume will expand several times to dozens of times.

[0003] The existing airflow puffing machine is not easy to control automatically. Many links of the machine need to be operated manually when it is working. The labor cost is high during use. The speed of manual operation varies, resulting in unstable quality of the puffed product. Summary of the invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide an automated airflow puffing machine with a high degree of automation and stable puffed product quality.

[0005] The purpose of the utility model is achieved through the following technical measures: an automated airflow puffing machine, comprising a frame, a tank cover, a tank body, a locking bow, a locking hook, a cover-opening fork rod, and a cover-opening cylinder; the tank cover is provided with an up and down turning shaft, the tail of the tank body is provided with a tank body main shaft for driving the tank body to rotate, the locking bow is bolted with a tank cover, the locking bow is equipped with a locking hook, the locking bow and the locking hook are pinned to the tank body respectively, an cover-opening fork rod is provided at the opposite end of the locking hook, the cover-opening fork rod is connected to the cover-opening cylinder, the cover-opening fork rod has a V-shaped structure for positioning and correcting the end of the locking hook, and the tank body The main shaft is connected to the tank cover through bearings and bearing seats. The bearing seats are fixed on the tank cover. The main shaft of the tank body is driven to rotate by a motor fixed on the tank cover. The up and down turning shaft of the tank cover is connected to the frame through the tank cover bearing seat. The tank cover and the tank body turn over together when turning up and down to facilitate loading, puffing and discharging. The up and down turning is driven by the motor and is equipped with multiple position signalers. The position signalers are connected to the PLC to determine the position where the tank body turns over and stops. After the pressure is reached, the PLC notifies the cover opening cylinder to execute the action, pushes the cover opening fork rod to push the lock hook, and the lock hook loses the locking force on the bow, and the tank cover on the locked bow opens.

[0006] In the above technical solution, a bow shock absorber is installed on the frame below the locking bow. The bow shock absorber is driven by a cylinder and can be extended and retracted back and forth. When the bow needs to be popped open during puffing, the shock absorber stops at the place where the bow is popped open. When it is not needed, it automatically retracts to the front of the frame to facilitate the tank cover and tank body to be flipped for loading and unloading.

[0007] In the above technical solution, a steel sheet for giving a signal is installed on the up and down turning shaft of the tank cover, and three proximity switches, i.e., signal receivers, are installed on the bearing seat of the tank cover. When the PLC receives the signal, the tank body stops at the required position.

[0008] In the above technical solution, the tank cover is turned upside down by a motor and is provided with a positioning pin. When positioning is required and the turning is stopped, the positioning pin is driven by the cylinder to extend into the positioning hole fixedly connected to the tank cover to realize automatic positioning of the tank body.

[0009] In the above technical solution, a pressure sensor is provided at the tail of the tank body for measuring the pressure inside the tank body. The pressure sensor is connected to the PLC and heating is stopped when the set pressure is reached.

[0010] The utility model automatic airflow puffing machine has accurate positioning when opening the cover for puffing. The existing airflow puffing machine has inaccurate positioning of the lock hook when opening the cover for puffing, which easily leads to overload of the cover push rod and lack of force. The utility model automatic airflow puffing machine has a high degree of automation, stable puffed product quality, greater safety, good reliability and low failure rate. The utility model is suitable for the processing of puffed materials such as food, medicine, feed, chemical industry, and materials, that is, after sealing, heating and pressurizing, reaching a predetermined pressure, and suddenly releasing the pressure when opening the cover to achieve the purpose of puffing the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a schematic diagram of the whole machine of the automatic airflow puffing machine of the utility model.

[0012] Figure 2 It is the left view of the whole machine of the utility model.

[0013] Figure 3 This is the rear view of the whole machine of the utility model.

[0014] Figure 4 for Figure 1 A partial enlarged view of point II in the middle.

[0015] Figure 5 for Figure 2 A partial enlarged view of point Ⅰ in the middle.

[0016] Figure 6 for Figure 3 A partial enlarged view of point III in the middle.

[0017] Figure 7 This is a schematic diagram of the closed state of the can cover of the automatic airflow puffing machine of the utility model.

[0018] Figure 8 This is a schematic diagram of the automatic airflow puffing machine of the utility model in the open state of the can cover.

[0019] Fig. 9 This is another embodiment structure of the cover opening fork rod in the utility model.

[0020] Among them: 1. tank cover, 2. tank body, 3. lid opening fork rod, 4. lid opening cylinder, 5. locking bow, 6. locking hook, 7. tank cover bolt, 8. tank body main shaft, 9. bearing, 10. bearing seat, 11. rotating sprocket, 12. rotating chain, 13. bow shock absorber, 14. shock-absorbing cylinder, 15. rotating motor, 16. heater, 17. gas switch, 18. pressure sensor, 19. pressure gauge in the tank, 20. silo, 21. metering bucket, 22. positioning cylinder, 23. proximity switch one, 24. proximity switch two, 25. proximity switch three. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the embodiments should not be construed as limiting the present invention.

[0022] like Figures 1 to 5 As shown, the embodiment of the utility model provides an automated airflow puffing machine, including a frame, a tank cover 1, a tank body 2, a locking bow 5, a locking hook 6, a cover-opening fork rod 3, and a cover-opening cylinder 4; the tank cover 1 is provided with an up and down turning shaft, the tail of the tank body 2 is provided with a tank body main shaft 8 for driving the tank body to rotate, the locking bow 5 is bolted with a tank cover, and the tank cover can be automatically adjusted when pressurized and then sealed with the tank mouth, the locking bow 5 is provided with a locking hook 6, the locking bow 5 and the locking hook 6 are pinned to the tank body 2 respectively, an cover-opening fork rod 3 is provided at the opposite end of the locking hook 6, the cover-opening fork rod 3 is connected to the cover-opening cylinder 4, and the cover-opening fork rod 3 has a V-shaped structure for positioning and correcting the end of the locking hook 6, so that the locking hook 6 is aligned when the cover is opened for puffing. Figure 7 As shown, it is ensured that the lock hook 6 will not deviate. The tank body main shaft 8 is connected to the tank cover through the bearing 9 and the bearing seat. The bearing seat is fixed on the tank cover. The tank body main shaft 8 is driven to rotate by the motor fixed on the tank cover. The up and down turning axis of the tank cover is connected to the frame through the tank cover bearing seat. The tank cover and the tank body turn upside down together to facilitate loading and unloading. The up and down turning is driven by the motor. When the pressure is reached, the PLC notifies the cover opening cylinder 4 to execute the action, pushes the cover opening fork rod 3 to push the lock hook 6, and the lock hook 6 loses the locking force on the bow, and the bow and the tank cover connected with the same bow open instantly, as shown in FIG. Figure 8 As shown, the material in the tank loses pressure instantly and expands.

[0023] like Figure 7, 8 As shown, a bow shock absorber 13 is installed on the frame below the locking bow 5. The bow shock absorber 13 is driven by a cylinder and can be retracted back and forth. When the bow needs to be ejected during puffing, the shock absorber stops at the bow ejection point and automatically retracts to the front of the frame when not needed, so that the tank cover and tank body can be turned over for loading and unloading.

[0024] The bottom or periphery of the tank body is provided with a heater 16. After the tank mouth faces upward for loading, the cover is closed, and after the tank body and tank cover are substantially horizontal, the tank body motor rotates, heats, and opens the cover after reaching the pressure, and when the cover is opened, the tank cover and tank body are substantially horizontal, and then, the tank mouth faces downward for discharging.

[0025] like Figure 6 As shown, the up and down turning shafts of the tank cover are equipped with steel sheets for giving signals, and the bearing seat of the tank cover is equipped with three proximity switches, i.e. signal receivers. When the PLC receives the signal, the tank body will stop at the required position, such as the tank mouth facing upwards during feeding, the tank mouth facing downwards during discharging, and the tank mouth facing forwards during puffing.

[0026] The tank cover is driven by a motor to flip up and down, and is provided with a positioning pin. When positioning is required and flipping stops, the positioning pin is driven by the positioning cylinder 22 to extend into the positioning hole fixedly connected to the tank cover to realize automatic positioning of the tank body, so that raw materials can be added when the puffing tank body is facing upwards, and materials can be discharged when it is facing downwards. When it is basically horizontal, the can is opened and puffed automatically, and safety is ensured.

[0027] A pressure sensor 18 is provided at the rear of the tank body for measuring the pressure inside the tank body. The pressure sensor 18 is connected to the PLC and stops heating when the set pressure is reached. When the set pressure is reached, the cover opening cylinder automatically opens the cover to achieve instant expansion. Before opening the cover, the bow shock absorber cylinder works to fix the bow shock absorber 13 below the bow when it pops out, so as to buffer and block the impact force of the bow opening instantly and prevent the bow from rebounding without limit and damaging the machine.

[0028] like Fig. 9 As shown, in this embodiment, a roller and a bushing can be arranged in the middle of the V-shaped structure on the cover opening fork rod, so that it is more labor-saving when the cylinder pushes the cover to open.

[0029] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. Automated airflow puffing machine, characterized by: It includes a frame, a tank cover, a tank body, a locking bow, a locking hook, a lid opening fork rod, and a lid opening cylinder; the tank cover is provided with an up and down turning shaft, the tail of the tank body is provided with a tank body main shaft that drives the tank body to rotate, the locking bow is bolted with a tank cover, the locking bow is equipped with a locking hook, the locking bow and the locking hook are respectively pinned to the tank body, an lid opening fork rod is provided at the opposite end of the locking hook, the lid opening fork rod is connected to the lid opening cylinder, the lid opening fork rod has a V-shaped structure for positioning and correcting the end of the locking hook, and the tank body main shaft is connected to the tank cover through a bearing and a bearing seat The bearing seat is fixed on the tank cover, and the main shaft of the tank body is driven to rotate by the motor fixed on the tank cover. The up and down turning axis of the tank cover is connected to the frame through the tank cover bearing seat. The tank cover and the tank body turn over together when turning up and down, so as to load, expand and discharge the materials. The up and down turning is driven by the motor, and a plurality of position signal devices are provided. The position signal device is connected to the plc to determine the position where the tank body turns over and stops. After the pressure is reached, the plc notifies the opening cylinder to execute the action, pushes the opening fork rod to push the locking hook, and the locking hook loses the locking force on the bow, and the tank cover on the locked bow is opened.

2. The automated airflow puffing machine according to claim 1, characterized in that: A bow shock absorber is installed on the frame below the locking bow. The bow shock absorber is driven by a cylinder and can be retracted back and forth. When the bow needs to be ejected during puffing, the shock absorber stops at the bow ejection point and automatically retracts to the front of the frame when not needed, so that the tank cover and tank body can be turned over for loading and unloading.

3. The automated airflow puffing machine according to claim 1, characterized in that: A heater is arranged at the bottom or around the tank body.

4. The automated airflow puffing machine according to claim 1, characterized in that: The up and down turning shafts of the tank cover are equipped with steel sheets for giving signals, and the bearing seat of the tank cover is equipped with three proximity switches, i.e. signal receivers, which stop the tank body at the required position when the PLC receives the signal.

5. The automated airflow puffing machine according to claim 1, characterized in that: The tank cover is turned up and down by a motor and is provided with a positioning pin. When positioning is required and the turning is stopped, the positioning pin is driven by the cylinder to extend into the positioning hole fixedly connected to the tank cover to realize automatic positioning of the tank body.

6. The automated airflow puffing machine according to claim 1, characterized in that: A pressure sensor is provided at the tail of the tank body to measure the pressure inside the tank body. The pressure sensor is connected to the PLC and heating will be stopped when the set pressure is reached.

7. The automated airflow puffing machine according to claim 1, characterized in that: The V-shaped structure on the cover opening fork rod is provided with a roller and a shaft sleeve in the middle position.

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