Automatic butt joint device for feeding and discharging of mixing machine

Abstract

The application discloses a mixing machine feeding and discharging automatic butt joint device and belongs to the technical field of mixing equipment. Mainly includes: a mixing cylinder, a butt joint assembly which is installed on the mixing cylinder and comprises sealing seats installed at feeding and discharging ports of the mixing cylinder, sealing sleeves which are slidably arranged in the sealing seats, an intermediate ring plate which is installed at one end of the sealing sleeve, an adapter sleeve which is installed at one end of the intermediate ring plate, a cylinder which is installed on the sealing seat and has an output end connected with the intermediate ring plate, and a negative pressure assembly which is installed on the mixing cylinder and is suitable for forming a negative pressure environment in a butt joint area. The mixing machine feeding and discharging automatic butt joint device provided by the application realizes automatic butt joint and separation of the mixing cylinder and feeding and discharging pipelines through axial movement of components such as the cylinder, the sealing sleeve and the adapter sleeve in the butt joint assembly, manual alignment and locking are not needed, and the labor intensity of operators is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of mixing equipment technology, specifically an automatic docking device for feeding and discharging materials in a mixing machine. Background Technology

[0002] The feeding and discharging devices of the mixing machine are components of the mixing machine. The feeding device is responsible for feeding the material into the mixing machine evenly and stably, ensuring that the feeding amount is controllable and does not affect the mixing effect. The discharging device discharges the mixed material smoothly after the material is mixed synchronously or after the mixing is completed, ensuring discharge efficiency and material uniformity. Both devices work together to ensure the normal operation and working efficiency of the mixing machine.

[0003] Currently, some mixing machines rely on manual operation for inlet and outlet docking. Operators first move the inlet or outlet pipe to the mixing machine's inlet, visually inspect the alignment of the pipe interface with the inlet, manually move the pipe to adjust its position, and repeatedly fine-tune it until it is roughly aligned. Then, they hold the pipe to keep it stable and use wrenches or other tools to tighten the bolts or clips at the interface one by one. By manually tightening, the pipe and the sealing gasket of the inlet are tightly fitted to complete the seal. During the process, it is necessary to constantly check whether the alignment is in place to avoid seal failure due to misalignment. However, this method not only increases labor intensity, but also results in low docking efficiency due to fluctuations in the accuracy of manual operation. Therefore, it is necessary to provide an automatic inlet and outlet docking device for mixing machines to solve the above problems.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is: to provide an automatic docking device for the feeding and discharging of a mixing machine, which solves the problem that the feeding and discharging docking of some existing mixing machines relies on manual operation, thereby increasing the labor intensity of manual labor, and the problem of material leakage and dust overflow caused by insufficient docking accuracy during the manual docking process.

[0006] The technical solution adopted by this application to solve its technical problem is: an automatic docking device for the feeding and discharging of a mixing machine, comprising:

[0007] Mixing cylinder;

[0008] A docking assembly is installed on the mixing drum. The docking assembly includes a sealing seat installed at the feed inlet and discharge outlet of the mixing drum. A sealing sleeve slides inside the sealing seat. An intermediate ring plate is installed at one end of the sealing sleeve. An adapter sleeve is installed at one end of the intermediate ring plate. A cylinder is installed on the sealing seat. The output end of the cylinder is connected to the intermediate ring plate.

[0009] A negative pressure assembly, which is installed on the mixing cylinder, is adapted to create a negative pressure environment in the docking area.

[0010] Furthermore, the negative pressure assembly includes a negative pressure fan installed on the mixing cylinder, and the air intake of the negative pressure fan is equipped with an adapter box;

[0011] The other end of the adapter sleeve is equipped with a negative pressure tube, and multiple negative pressure nozzles are connected to the negative pressure tube. Two connecting tubes are connected through the adapter box, and one end of each connecting tube passes through the adapter sleeve and is connected to the negative pressure tube.

[0012] Furthermore, a filter screen is installed inside the adapter box.

[0013] Furthermore, a control valve is installed at the end of each connecting pipe near the adapter box.

[0014] Furthermore, the adapter sleeve is made of 304 stainless steel.

[0015] Furthermore, sealing valves are installed on the adapter sleeves respectively.

[0016] Furthermore, multiple guide rods are installed at the bottom of the sealing seat, and multiple guide frames are installed at the lower part of the intermediate ring plate. The guide frames can move axially along the body of the guide rods.

[0017] The beneficial effects of this application are: the automatic docking device for feeding and discharging of the mixer provided by this application achieves automatic docking and separation of the mixing cylinder and the feeding and discharging pipes by driving the sealing sleeve, the adapter sleeve and other components in the docking assembly to move axially through the cylinder, without the need for manual alignment and locking, which greatly reduces the labor intensity of operators.

[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a first three-dimensional structural schematic diagram of the automatic docking device for feeding and discharging materials of a mixer according to an embodiment of this application;

[0021] Figure 2 This is a second three-dimensional structural schematic diagram of the automatic docking device for feeding and discharging materials of a mixer according to an embodiment of this application;

[0022] Figure 3This is a cross-sectional view of a mixing assembly according to an embodiment of this application;

[0023] Figure 4 This is a three-dimensional structural diagram of the docking component according to an embodiment of this application;

[0024] Figure 5 This is an exploded view of the docking components according to an embodiment of this application;

[0025] Figure 6 This is a three-dimensional structural diagram of the docking component and the negative pressure component according to an embodiment of this application;

[0026] Figure 7 This is a partial cross-sectional view of the adapter box according to an embodiment of this application;

[0027] Figure 8 This is an assembly diagram of the negative pressure pipe according to an embodiment of this application.

[0028] The following are the labeling elements in the figure:

[0029] 1. Frame; 2. Mixing assembly; 21. Mixing cylinder; 22. Top cover; 23. Stirring motor; 24. Stirrer; 3. Connecting assembly; 31. Sealing seat; 32. Sealing sleeve; 33. Intermediate ring plate; 34. Adapter sleeve; 35. Sealing valve; 36. Guide rod; 37. Guide frame; 38. Cylinder; 4. Negative pressure assembly; 41. Negative pressure fan; 42. Adapter box; 43. Filter screen; 44. Connecting pipe; 45. Control valve; 46. Negative pressure pipe; 47. Negative pressure nozzle. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0032] like Figures 1-3As shown, this application provides an automatic docking device for feeding and discharging materials into a mixing machine, including a frame 1, which is the basic support structure of the entire device and is placed on the ground. A mixing component 2 is installed on the frame 1. The mixing component 2 is used for mixing materials. The mixing component 2 includes a mixing cylinder 21 fixed on the frame 1. The mixing cylinder 21 is made of stainless steel and is a container for mixing materials. A top cover 22 is bolted to the upper part of the mixing cylinder 21. The top cover 22 is used to seal the upper part of the mixing cylinder 21 and form a closed space with the mixing cylinder 21, thereby reducing the possibility of material leakage to the outside of the mixing cylinder 21 during the mixing process.

[0033] A stirring motor 23 is bolted to the top cover 22. The stirring motor 23 is a servo motor and needs to be connected to an external power source before use. It can be started or stopped by a corresponding controller. The output end of the stirring motor 23 extends into the mixing drum 21 and is coaxially mounted with an agitator 24. The agitator 24 is connected to the output end of the stirring motor 23 through a coupling. When the stirring motor 23 is started, it can drive the agitator 24 to rotate and stir the material in the mixing drum 21.

[0034] like Figures 2-5 As shown, a docking assembly 3 is installed on the mixing drum 21. This docking assembly 3 is used to automatically dock the mixing drum 21 with an external feeding tank at the feeding position, allowing the material in the external feeding tank to enter the mixing drum 21. At the same time, it is used to automatically dock the mixing drum 21 with an external storage tank at the discharging position, allowing the mixed material in the mixing drum 21 to enter the storage tank. This avoids manual docking and effectively reduces the labor intensity of the workers. The docking assembly 3 includes a sealing seat 31 installed at the feeding port (not shown in the figure) and the discharging port (not shown in the figure) of the mixing drum 21, respectively. The sealing seat 31 is made of aluminum alloy and is bolted to the feeding port and the discharging port of the mixing drum 21, which facilitates the disassembly, maintenance and replacement of the sealing seat 31.

[0035] A sealing sleeve 32 slides within the sealing seat 31. The sealing sleeve 32 slides along the inner wall of the sealing seat 31 under pneumatic drive. An intermediate ring plate 33 is fixed at the end of the sealing sleeve 32 away from the sealing seat 31, and a transition sleeve 34 is fixed at the end of the intermediate ring plate 33 away from the sealing sleeve 32. The intermediate ring plate 33 connects the sealing sleeve 32 and the transition sleeve 34 and transmits the pneumatic driving force to ensure that the two move synchronously. Meanwhile, the transition sleeve 34 serves as the docking interface for the inlet and outlet pipes. It is made of 304 stainless steel. One end is welded and fixed to the intermediate ring plate 33, and the other end is connected to the external pipe. Its inner diameter matches the inlet and outlet of the mixing cylinder 21 to form a channel for material inlet and outlet. A sealing valve 35 is installed on the transition sleeve 34. The sealing valve 35 adopts an electric butterfly valve structure. The valve opening is remotely adjusted by the PLC control system. It is opened after docking to allow material conveying. It is closed before docking separation to form a sealing protection, so that the material inside the mixing cylinder 21 is not easy to flow out to the outside during the mixing process.

[0036] A cylinder 38 is bolted to the sealing seat 31. The output end of the cylinder 38 is bolted to the intermediate ring plate 33. Specifically, the cylinder 38 drives the piston rod to extend and retract by air pressure, which drives the intermediate ring plate 33, sealing sleeve 32 and adapter sleeve 34 to move axially, so as to realize docking and separation with the inlet and outlet pipes. When it is working, compressed air enters the cylinder to push the piston and the piston rod extends to perform docking. When exhausting, the piston retracts under the action of air pressure or reset device to complete the separation.

[0037] Multiple guide rods 36 are fixedly installed at the bottom of the sealing seat 31, and multiple guide frames 37 are fixed at the lower part of the intermediate ring plate 33. The guide frame 37 can move along the axial direction of the guide rod 36. The guide rod 36 and the guide frame 37 form a linear guide structure to restrict the movement trajectory of the sealing sleeve 32 within the sealing seat 31.

[0038] like Figure 1 and Figures 6-8 As shown, a negative pressure component 4 is installed on the mixing cylinder 21. This negative pressure component 4 is used in the device to reduce dust overflow. By constructing negative pressure adsorption, a stable negative pressure environment is formed in the docking area. The negative pressure component 4 includes a negative pressure fan 41 that is bolted to the mixing cylinder 21. The negative pressure fan 41 is driven by a motor to rotate the impeller at high speed, generating a negative pressure airflow to form a negative pressure environment in the docking area, adsorbing the dust generated when materials enter and exit, and reducing dust overflow. A transfer box 42 is bolted to the air inlet of the negative pressure fan 41. The transfer box 42 filters the extracted dust-laden airflow. A filter screen 43 is installed inside the transfer box 42. The filter screen 43 intercepts dust particles in the airflow, reducing dust from entering the negative pressure fan 41 and causing equipment wear, while also reducing dust emissions and meeting environmental protection requirements.

[0039] A negative pressure pipe 46 is fixedly installed inside the end of the adapter sleeve 34 near the middle ring plate 33. The negative pressure pipe 46 serves as a transmission channel for negative pressure airflow. Multiple negative pressure nozzles 47 are connected to the negative pressure pipe 46, with their openings facing the docking area. The negative pressure adsorbs the dust generated when materials enter and exit, reducing the spread of dust into the workshop environment. Two connecting pipes 44 are connected through the adapter box 42. One end of each connecting pipe 44 passes through the adapter sleeve 34 and connects to the negative pressure pipe 46. The connecting pipe 44 connects the adapter box 42 and the negative pressure pipe 46, forming a complete negative pressure airflow path. This ensures that the airflow enters the adapter box 42 from the docking area via the negative pressure pipe 46 and the connecting pipe 44. A control valve 45 is installed at the end of each connecting pipe 44 near the adapter box 42. The opening of the control valve 45 is adjusted to control the magnitude of the negative pressure airflow and adjust the negative pressure value of the docking area, balancing the adsorption effect and energy consumption.

[0040] Working principle: When the mixer needs to be fed, the PLC control system issues a command, the cylinder 38 starts to work, compressed air enters the cylinder body to push the piston, the piston rod extends, and drives the intermediate ring plate 33, sealing sleeve 32 and adapter sleeve 34 to move along the guide rod 36 towards the external feed tank, and the upper end of the adapter sleeve 34 is inserted into the discharge port of the external feed tank. At this time, the sealing ring (not shown in the figure) on the outer wall of the adapter sleeve 34 is tightly fitted with the interface of the discharge port of the external feed tank to form a high airtight seal and complete the automatic docking.

[0041] After docking is completed, the control system opens the control valve 45 on the connecting pipe 44 and starts the negative pressure fan 41. The negative pressure fan 41 rotates to generate negative pressure airflow, which is conducted through the connecting pipe 44 and the negative pressure pipe 46 to the negative pressure suction nozzle 47, forming a negative pressure environment in the docking area. Subsequently, the sealing valve 35 opens, and the material in the external feed tank enters the mixing cylinder 21 through the adapter sleeve 34 under the action of gravity or conveying equipment. The dust generated during the feeding process is adsorbed by the negative pressure suction nozzle 47 in real time. The dust-laden airflow is filtered through the filter screen 43 in the adapter box 42 and then discharged to reduce dust overflow.

[0042] After the material is conveyed, the PLC system first closes the sealing valve 35 to cut off the material channel, and then controls the cylinder 38 to exhaust the air, the piston retracts, and drives the adapter sleeve 34 to separate from the external feed tank, completing the feeding docking cycle.

[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic feeding and discharging docking device for a mixing machine, characterized in that: include: Mixing cylinder (21); A docking assembly (3) is installed on the mixing cylinder (21). The docking assembly (3) includes a sealing seat (31) installed at the feed inlet and discharge outlet of the mixing cylinder (21). A sealing sleeve (32) slides inside the sealing seat (31). An intermediate ring plate (33) is installed at one end of the sealing sleeve (32). An adapter sleeve (34) is installed at one end of the intermediate ring plate (33). A cylinder (38) is installed on the sealing seat (31). The output end of the cylinder (38) is connected to the intermediate ring plate (33). The negative pressure component (4), which is installed on the mixing cylinder (21), is adapted to create a negative pressure environment in the docking area.

2. The automatic material feeding and discharging docking device for a mixing machine according to claim 1, characterized in that: The negative pressure assembly (4) includes a negative pressure fan (41) installed on the mixing cylinder (21), and the air intake of the negative pressure fan (41) is equipped with an adapter box (42). The other end of the adapter sleeve (34) is equipped with a negative pressure tube (46), and multiple negative pressure suction nozzles (47) are connected to the negative pressure tube (46). Two connecting tubes (44) are connected through the adapter box (42). One end of each connecting tube (44) passes through the adapter sleeve (34) and is connected to the negative pressure tube (46).

3. The automatic material feeding and discharging docking device for a mixing machine according to claim 2, characterized in that: The adapter box (42) is equipped with a filter screen (43).

4. The automatic material feeding and discharging docking device for the mixing machine according to claim 2, characterized in that: Each of the connecting pipes (44) is equipped with a control valve (45) at the end near the adapter box (42).

5. The automatic feeding and discharging docking device for the mixing machine according to claim 1, characterized in that: The adapter sleeve (34) is made of 304 stainless steel.

6. The automatic material feeding and discharging docking device for a mixing machine according to claim 1, characterized in that: Sealing valves (35) are installed on the adapter sleeve (34).

7. The automatic material feeding and discharging docking device for a mixing machine according to claim 1, characterized in that: The bottom of the sealing seat (31) is equipped with multiple guide rods (36), and the lower part of the intermediate ring plate (33) is equipped with multiple guide frames (37). The guide frames (37) can move along the axial direction of the guide rods (36).

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