A toner processing apparatus having an emergency stop function

Abstract

This disclosure relates to the field of toner processing technology. One embodiment of this disclosure provides a toner processing device with an emergency stop function, comprising: a conveying pipe, a feed hood connected to the conveying pipe, a conveying locking assembly disposed on the conveying pipe, and a feed conveying assembly disposed inside the conveying pipe; the conveying locking assembly includes an elbow pipe, one end of a retraction spring being fixedly connected to a mounting platform, a mounting frame disposed on the side wall of the elbow pipe, an output motor disposed on the inner side wall of the mounting frame, and a drive cam disposed at the output end of the output motor, the drive cam contacting the mounting platform. Through the above technical solution, the defects of traditional braking structures in the prior art are solved. For example, with electromagnetic clutch braking, toner dust easily adheres to the friction plates, causing the braking force to gradually decrease, and frequent start-stop cycles easily generate heat, accelerating component aging; mechanical brakes generally only act on the motor output shaft and cannot directly lock the conveying components, and also have complex structures.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of toner processing technology, and more specifically, to a toner processing device with an emergency stop function. Background Technology

[0002] In the toner processing industry, with the continuous expansion of production scale and the increasing requirements for automation, the performance and safety of toner processing equipment are receiving more and more attention.

[0003] The toner production process involves multiple stages, requiring precise control of material conveying and processing. Traditional toner processing equipment conveying systems have some shortcomings in material conveying. Firstly, their emergency stop function is not ideal. In emergencies such as equipment failure, material blockage, abnormally high dust concentration potentially causing an explosion, or the need for precise control of material flow to ensure mixing accuracy, the emergency stop response of traditional conveying equipment is often delayed. For example, conventional motor power-off braking typically takes 0.5-2 seconds. During this time, material continues to be conveyed due to inertia, which may lead to uncontrolled process parameters, affecting toner product quality, such as deviations in mixing ratios; it may also cause equipment overload, such as material accumulation causing motor stall; and it may even pose safety hazards, such as the continuous spread of dust increasing the risk of explosion.

[0004] On the other hand, traditional braking structures have defects. For example, with electromagnetic clutch braking, toner dust is easily adsorbed on the friction plates, causing the braking force to gradually decrease. Moreover, frequent start-stop cycles can generate heat, accelerating component aging. Mechanical brakes generally only act on the motor output shaft and cannot directly lock the conveying components. Furthermore, they have a complex structure and high maintenance costs.

[0005] In addition, the braking components of traditional toner processing equipment are mostly located at the motor end. Once a fault occurs and maintenance is required, it is often necessary to disassemble components such as the conveying pipes, which makes maintenance difficult and seriously affects production efficiency.

[0006] Meanwhile, in the entire toner production process, each link is interconnected. A problem in one part may affect multiple subsequent processes. For example, in the tablet pressing stage (as shown in the relevant content of the tablet pressing roller fault interlock alarm device mentioned above), the equipment failure rate is relatively high. If not handled in time, it will lead to a series of failures and losses. This also highlights the importance of the emergency stop function in the entire toner processing equipment system as well as the reliable operation and collaborative work of each component.

[0007] As the market demands for toner product quality and production efficiency continue to rise, and the importance of safe production deepens, there is an urgent need for toner processing equipment, especially its conveying system, which can have a fast and reliable emergency stop function to ensure the safety, stability and accuracy of the production process and reduce losses and risks caused by slow emergency stop response or defects in the braking structure. This patented toner processing equipment with an emergency stop function is proposed against this background, aiming to solve the shortcomings of traditional equipment in terms of emergency stop function. Utility Model Content

[0008] To overcome the above-mentioned defects, the embodiments of this disclosure provide a toner processing device with an emergency stop function, which solves the defects of traditional braking structures in the prior art. For example, in electromagnetic clutch braking, toner dust is easily adsorbed on the friction plate, resulting in a gradual decrease in braking force. Moreover, frequent start-stop operations can easily generate heat, accelerating component aging. Mechanical brakes generally only act on the motor output shaft and cannot directly lock the conveying components, and they also have complex structures.

[0009] According to one aspect, at least one embodiment of this disclosure provides a toner processing apparatus with an emergency stop function, comprising: A conveying pipe, wherein a feed hood is connected to the conveying pipe; A conveying locking assembly is disposed on the conveying pipe; A feeding conveying assembly is disposed inside the conveying pipe; The conveying locking assembly includes an elbow tube connected to the side wall of the conveying pipe. A locking shaft is inserted inside the elbow tube, with one end of the locking shaft extending out of the elbow tube. A push platform is provided at one end of the locking shaft, and a retraction spring is provided at the end of the push platform. A mounting cover is provided on the elbow tube, and a mounting platform is provided at the end of the mounting cover. One end of the retraction spring is fixedly connected to the mounting platform. A mounting frame is provided on the side wall of the elbow tube, and an output motor is provided on the inner side wall of the mounting frame. A drive cam is provided at the output end of the output motor, and the drive cam contacts the mounting platform.

[0010] As a further technical solution, the outer side wall of the mounting platform is provided with a drive cover, the inner side wall of the drive cover is provided with a drive groove, the drive groove is provided with a pulley, the side wall of the drive cam is in contact with the pulley, and one end of the locking shaft passes through the push platform and is fixedly connected to the drive cover.

[0011] As a further technical solution, the feeding and conveying assembly includes a feeding port, which is opened on the conveying pipe and is connected to the feeding hood. An extension frame is provided on the side wall of the conveying pipe, and a conveying motor is provided at the end of the extension frame. The output end of the conveying motor is inserted into the interior of the conveying pipe. A conveying shaft is provided on the conveying pipe, and a conveying auger is provided on the conveying shaft.

[0012] As a further technical solution, the cross-section of the conveying shaft is hexagonal, and a locking sleeve is provided at one end of the locking shaft that is inserted into the conveying pipe. The locking sleeve has a locking cavity inside, and the locking cavity matches the structure of the conveying shaft.

[0013] As a further technical solution, an auxiliary insertion arc surface is provided at the end face of the locking cavity and the locking sleeve.

[0014] As a further technical solution, the number of mounting frames is two, and the two mounting frames are located on opposite sides of the output motor. The output end of the output motor is connected to the inner sidewall of the mounting frame by a bearing for limiting.

[0015] As a further technical solution, the end of the conveying pipe is a curved structure, and the feed port is opened at the upper end of the curved structure.

[0016] As a further technical solution, the feed hood is an inverted conical structure.

[0017] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, when the equipment triggers an emergency stop signal, the drive cam in the conveying locking assembly is driven by the output motor to quickly push the locking shaft into the conveying pipe. The locking sleeve at the end of the locking shaft matches the hexagonal conveying shaft structure, which can directly lock the rotation of the conveying auger and prevent the material from continuing to be conveyed due to inertia. Compared with the traditional motor power-off braking, this mechanical hard locking method can shorten the response time to less than 0.1 seconds, effectively preventing safety hazards caused by dust diffusion, and avoiding mixing ratio deviations caused by excessive material conveying, thus ensuring precise control of toner production process parameters.

[0018] 2. In this disclosure, the conveying locking assembly is independently installed on the side wall of the conveying pipe. The locking shaft and other components such as the drive cam are integrated through structures such as elbows and mounting covers, allowing for maintenance without disassembling the conveying pipe. For example, when it is necessary to replace the retraction spring or repair the output motor, the core components can be accessed simply by opening the mounting cover. The maintenance efficiency is about 3 times higher than that of traditional mechanical brakes. In addition, the hexagonal fit structure between the locking cavity and the conveying shaft reduces the gap for dust accumulation. Combined with the auxiliary insertion arc surface design, it can reduce the risk of component jamming caused by dust adsorption and extend the service life of the equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is a cross-sectional view of the conveying pipe disclosed herein; Figure 3 This is an isometric view of the contraction spring disclosed herein; Figure 4 Appendix to this disclosure Figure 2 Enlarged view of part A; In the diagram: 1. Conveying pipe; 2. Feed hood; 3. Conveying locking assembly; 3-1. Elbow pipe; 3-2. Locking shaft; 3-3. Pushing platform; 3-4. Retraction spring; 3-5. Mounting cover; 3-6. Mounting platform; 3-7. Mounting frame; 3-8. Output motor; 3-9. Drive cam; 3-10. Drive cover; 3-11. Drive groove; 3-12. Pulley; 4. Feeding and conveying assembly; 4-1. Feed inlet; 4-2. Extension frame; 4-3. Conveying motor; 4-4. Conveying shaft; 4-5. Conveying auger; 5. Locking sleeve; 6. Locking cavity; 7. Auxiliary insertion arc surface. Detailed Implementation

[0021] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0024] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-4 As shown, it illustrates a toner processing apparatus with an emergency stop function according to this disclosure, comprising: Conveying pipe 1, with feed hood 2 connected to conveying pipe 1; Conveyor locking assembly 3 is installed on conveyor pipe 1; Feeding and conveying assembly 4 is installed inside the conveying pipe 1; The conveying locking assembly 3 includes a bend pipe 3-1, which is connected to the side wall of the conveying pipe 1. A locking shaft 3-2 is inserted inside the bend pipe 3-1, with one end of the locking shaft 3-2 extending out of the bend pipe 3-1. A pusher platform 3-3 is provided at one end of the locking shaft 3-2, and a retraction spring 3-4 is provided at the end of the pusher platform 3-3. A mounting cover 3-5 is provided on the bend pipe 3-1, and a mounting platform 3-6 is provided at the end of the mounting cover 3-5. One end of the retraction spring 3-4 is fixedly connected to the mounting platform 3-6. A mounting frame 3-7 is provided on the side wall of the bend pipe 3-1, and an output motor 3-8 is provided on the inner side wall of the mounting frame 3-7. A drive cam 3-9 is provided at the output end of the output motor 3-8, and the drive cam 3-9 is in contact with the mounting platform 3-6.

[0028] The feeding conveying assembly 4 includes a feeding port 4-1, which is located on the conveying pipe 1 and is connected to the feeding hood 2. An extension frame 4-2 is provided on the side wall of the conveying pipe 1, and a conveying motor 4-3 is provided at the end of the extension frame 4-2. The output end of the conveying motor 4-3 is inserted into the interior of the conveying pipe 1. A conveying shaft 4-4 is provided on the conveying pipe 1, and a conveying auger 4-5 is provided on the conveying shaft 4-4.

[0029] In some examples, the end of the conveying pipe 1 is a curved structure, and the upper end of the curved structure has a feed inlet 4-1. This design may facilitate the conveying and distribution of materials within the conveying pipe 1. An elbow 3-1 is connected to the side wall of the conveying pipe 1. A locking shaft 3-2 is inserted into the elbow 3-1, with one end of the locking shaft 3-2 extending out of the elbow 3-1. A pusher 3-3 is installed at this end, and a retraction spring 3-4 is installed at the end of the pusher 3-3. Simultaneously, a mounting cover 3-5 is installed on the elbow 3-1, and the mounting platform 3-6 at the end of the mounting cover 3-5 is fixedly connected to one end of the retraction spring 3-4. A drive cover 3-10 is installed on the outer wall of the mounting platform 3-6, and a drive groove 3-11 is provided on the inner wall of the drive cover 3-10. A pulley 3-12 is installed within the drive groove 3-11. The drive cam 3-9 is brought into contact with the pulley 3-12. At the same time, one end of the locking shaft 3-2 is passed through the push table 3-3 and fixedly connected to the drive cover 3-10. A feed port 4-1 is opened on the conveying pipe 1 and connected to the feed cover 2. An extension frame 4-2 is installed on the side wall of the conveying pipe 1. A conveying motor 4-3 is installed at the end of the extension frame 4-2. The output end of the conveying motor 4-3 is inserted into the conveying pipe 1. A conveying shaft 4-4 is installed inside the conveying pipe 1. The conveying shaft 4-4 has a hexagonal cross-section. A conveying auger 4-5 is installed on the conveying shaft 4-4. A locking sleeve 5 is installed at the end of the locking shaft 3-2 that is inserted into the conveying pipe 1. A locking cavity 6 matching the structure of the conveying shaft 4-4 is set inside the locking sleeve 5. An auxiliary insertion arc surface 7 is set at the end face of the locking cavity 6 and the locking sleeve 5.

[0030] When an emergency stop is required, the output motor 3-8 is started (the output motor 3-8 is not working normally, but is started when an emergency stop is needed). The output motor 3-8 drives the drive cam 3-9 to rotate. Since the cross-section of the conveyor shaft 4-4 is hexagonal, the locking cavity 6 inside the locking sleeve 5 on the locking shaft 3-2 matches the structure of the conveyor shaft 4-4. The locking sleeve 5 will be inserted into the conveyor shaft 4-4, thereby preventing the conveyor shaft 4-4 from rotating, realizing the emergency stop function and stopping the toner delivery.

[0031] like Figures 1-4 As shown, in this embodiment, the outer side wall of the mounting platform 3-6 is provided with a drive cover 3-10, the inner side wall of the drive cover 3-10 is provided with a drive groove 3-11, the inside of the drive groove 3-11 is provided with a pulley 3-12, the side wall of the drive cam 3-9 is in contact with the pulley 3-12, and one end of the locking shaft 3-2 passes through the push platform 3-3 and is fixedly connected to the drive cover 3-10.

[0032] In some examples, during the rotation of the drive cam 3-9, the drive cover 3-10 is moved by contact with the pulley 3-12. The drive cover 3-10 drives the locking shaft 3-2 to move, and the locking shaft 3-2 moves into the delivery pipe 1 against the elastic force of the contraction spring 3-4.

[0033] For example, such as Figure 3 As shown, the cross-section of the conveying shaft 4-4 is hexagonal. The locking shaft 3-2 is inserted into the end of the conveying pipe 1 and is provided with a locking sleeve 5. The locking sleeve 5 is provided with a locking cavity 6 inside, and the locking cavity 6 matches the structure of the conveying shaft 4-4.

[0034] In some examples, since the cross-section of the conveyor shaft 4-4 is hexagonal, the locking cavity 6 inside the locking sleeve 5 on the locking shaft 3-2 matches the structure of the conveyor shaft 4-4. The locking sleeve 5 will be inserted into the conveyor shaft 4-4, thereby preventing the conveyor shaft 4-4 from rotating, realizing the emergency stop function and stopping the toner delivery.

[0035] For example, such as Figure 3 As shown, an auxiliary insertion arc surface 7 is provided at the end face of the locking cavity 6 and the locking sleeve 5.

[0036] In some examples, the auxiliary insertion ramp facilitates the quick insertion of the locking sleeve 5 onto the locking shaft 3-2 to achieve an emergency stop.

[0037] For example, such as Figure 1 As shown, there are two mounting frames 3-7, which are located on opposite sides of the output motor 3-8. The output end of the output motor 3-8 is connected to the inner wall of the mounting frame 3-7 by bearing limiting.

[0038] In some examples, two mounting brackets 3-7 are installed on the side wall of the elbow pipe 3-1, located on opposite sides of the output motor 3-8. The output motor 3-8 is installed on the inner side wall of the mounting bracket 3-7, and the output end is connected by a bearing limit connection. A drive cam 3-9 is installed on the output end of the output motor 3-8 so that the drive cam 3-9 contacts the mounting platform 3-6.

[0039] For example, such as Figure 2 As shown, the end of the conveying pipe 1 is a curved structure, and the upper end of the curved structure has a feed port 4-1.

[0040] In some examples, the conveyor motor 4-3 is started, which drives the conveyor shaft 4-4 to rotate. Since the conveyor shaft 4-4 is equipped with a conveyor auger 4-5, the conveyor auger 4-5 starts to rotate and conveys the toner material that enters the conveyor pipe 1 from the feed hood 2 through the feed port 4-1.

[0041] For example, such as Figure 1 As shown, the feed hood 2 is an inverted conical structure.

[0042] In some examples, the feed hood 2 is connected to the conveying pipe 1. Since the feed hood 2 is an inverted conical structure, it is beneficial for the material to fall smoothly from the feed hood 2 into the feed inlet 4-1 of the conveying pipe 1.

[0043] During use, toner material falls from the inverted conical feed hood 2 into the feed inlet 4-1 of the conveying pipe 1. The conical structure design allows the material to flow more smoothly and centrally into the feed inlet 4-1, reducing the risk of material residue or blockage. The conveying motor 4-3 drives the hexagonal conveying shaft 4-4 to rotate, which in turn drives the conveying auger 4-5 to rotate synchronously. The spiral blades of the conveying auger 4-5 push the material to move axially along the conveying pipe 1, completing the conveying process. Since the end of the conveying pipe 1 has a curved structure, it may further change the material flow direction or improve the conveying efficiency.

[0044] When it is necessary to stop the material conveying urgently, start the output motors 3-8 (normally in standby mode).

[0045] The output motor 3-8 drives the drive cam 3-9 to rotate. The cam profile pushes the pulley 3-12 on the mounting platform 3-6, causing the drive cover 3-10 to move the locking shaft 3-2 into the conveying pipe 1. The locking shaft 3-2 overcomes the tension of the contraction spring 3-4 until the locking cavity 6 of the locking sleeve 5 is fully aligned with the conveying shaft 4-4. The hexagonal locking cavity 6 and the cross section of the conveying shaft 4-4 are precisely matched. The alignment is quickly guided by the auxiliary insertion arc surface 7. The rigid connection between the locking sleeve 5 and the conveying shaft 4-4 immediately prevents the conveying shaft 4-4 from rotating. The conveying auger 4-5 stops working, and the material conveying is terminated instantly. After the emergency stop is released (output motor 3-8 reverses or is de-energized), the contraction spring 3-4 pulls the locking shaft 3-2 back to its initial position through elastic restoring force, and the equipment resumes normal operation.

[0046] The rolling contact between the drive cam 3-9 and the pulley 3-12 reduces friction and ensures rapid response. The double mounting bracket 3-7 and bearing limit design ensure stable operation of the output motor 3-8 and prevent positioning deviation caused by vibration. The non-circular fit between the hexagonal conveying shaft 4-4 and the locking cavity 6 provides reliable torque transmission and avoids slippage. The curved structure of the conveying pipe 1 may increase the inertial resistance of the material during emergency stops, thus helping to improve the braking effect.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A toner processing device with an emergency stop function, characterized in that, include: A conveying pipe (1) is connected to a feed hood (2); A conveying locking assembly (3) is disposed on the conveying pipe (1); Feeding and conveying assembly (4), which is disposed inside the conveying pipe (1); The conveying locking assembly (3) includes an elbow (3-1) connected to the side wall of the conveying pipe (1). A locking shaft (3-2) is inserted inside the elbow (3-1), with one end of the locking shaft (3-2) extending out of the elbow (3-1). A pusher (3-3) is provided at one end of the locking shaft (3-2), and a retraction spring (3-4) is provided at the end of the pusher (3-3). A mounting cover is provided on the elbow (3-1). (3-5) The end of the mounting cover (3-5) is provided with a mounting platform (3-6). One end of the retraction spring (3-4) is fixedly connected to the mounting platform (3-6). The side wall of the elbow pipe (3-1) is provided with a mounting frame (3-7). The inner side wall of the mounting frame (3-7) is provided with an output motor (3-8). The output end of the output motor (3-8) is provided with a drive cam (3-9). The drive cam (3-9) is in contact with the mounting platform (3-6).

2. The toner processing equipment with an emergency stop function according to claim 1, characterized in that, The outer side wall of the mounting platform (3-6) is provided with a drive cover (3-10), the inner side wall of the drive cover (3-10) is provided with a drive groove (3-11), the inside of the drive groove (3-11) is provided with a pulley (3-12), the side wall of the drive cam (3-9) is in contact with the pulley (3-12), and one end of the locking shaft (3-2) passes through the push platform (3-3) and is fixedly connected to the drive cover (3-10).

3. The toner processing equipment with an emergency stop function according to claim 1, characterized in that, The feeding and conveying assembly (4) includes a feeding port (4-1), which is located on the conveying pipe (1). The feeding port (4-1) is connected to the feeding hood (2). An extension frame (4-2) is provided on the side wall of the conveying pipe (1). A conveying motor (4-3) is provided at the end of the extension frame (4-2). The output end of the conveying motor (4-3) is inserted into the interior of the conveying pipe (1). A conveying shaft (4-4) is provided on the conveying pipe (1). A conveying auger (4-5) is provided on the conveying shaft (4-4).

4. The toner processing equipment with an emergency stop function according to claim 3, characterized in that, The conveying shaft (4-4) has a hexagonal cross-section. The locking shaft (3-2) is inserted into the conveying pipe (1) and a locking sleeve (5) is provided at one end. The locking sleeve (5) has a locking cavity (6) inside, and the locking cavity (6) matches the structure of the conveying shaft (4-4).

5. A toner processing device with an emergency stop function according to claim 4, characterized in that, An auxiliary insertion arc surface (7) is provided at the end face of the locking cavity (6) and the locking sleeve (5).

6. The toner processing equipment with an emergency stop function according to claim 1, characterized in that, There are two mounting frames (3-7), which are located on opposite sides of the output motor (3-8). The output end of the output motor (3-8) is connected to the inner wall of the mounting frame (3-7) by bearing limiting.

7. A toner processing device with an emergency stop function according to claim 3, characterized in that, The end of the conveying pipe (1) is a curved structure, and the upper end of the curved structure has the feed port (4-1).

8. The toner processing equipment with an emergency stop function according to claim 1, characterized in that, The feed hood (2) is an inverted conical structure.

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