A device for automatically detecting the bag of powder

Abstract

The utility model discloses an automatic powder receiving equipment bagging detection mechanism, include: lower powder pipeline, be located one pair of the bag clamping hoop that can open and close in lower powder pipeline outer, a plurality of conductive patch, the conductive patch sets up at the bagging position of lower powder pipeline, and a plurality of conductive patch evenly distributes in the circumferential side of lower powder pipeline, a plurality of probes, the probe is installed in the bag clamping hoop, and a plurality of probes and a plurality of conductive patch's position one to one corresponds, and the head of probe elastically protrudes from the inner side wall of bag clamping hoop, power module, power module with probe electric connection, PLC module, the input pin of PLC module with conductive patch electric connection. The technical effect reached is: accurate identification bagging state, abnormal instant interlock control, reduce finished product waste from the source, reduce artificial burden, avoid equipment pollution and wear and tear, guarantee production continuity, reduce the hidden danger of dust explosion.

Description

Technical Field

[0001] This utility model relates to the field of toner production equipment technology, specifically to an automatic toner receiving equipment bagging detection mechanism. Background Technology

[0002] In the packaging process of toner products, automated toner dispensing equipment is widely used to achieve efficient and automated production processes. This equipment integrates multiple functional modules such as automatic bag picking, automatic bag opening, automatic bag fitting, automatic filling, and automatic box packing, aiming to improve packaging efficiency and reduce manual intervention. However, in actual operation, when an abnormality occurs in the automatic bag fitting stage (such as the plastic bag not being correctly fitted) and this abnormality is not detected and handled in a timely manner, the system will still continue to execute subsequent filling operations.

[0003] This defect leads to serious production problems: First, filling a bag of toner (e.g., 10kg) results in the toner being directly filled onto the outside of the plastic bag, wasting a large amount of expensive finished product; second, the spilled toner requires operators to interrupt their work to clean it up, increasing the workload and disrupting the overall production rhythm; third, to avoid further losses, the automatic toner dispensing equipment must be stopped, causing the production line to shut down, resulting in a double loss of working hours and production capacity; in addition, scattered toner will drift around inside the equipment, contaminating the mechanical structure, accelerating the wear of parts, and even causing malfunctions; more seriously, when the suspended toner reaches a certain concentration, it may form a combustible dust environment, posing a significant safety hazard of dust explosion.

[0004] Therefore, existing automatic powder receiving equipment, lacking an effective bagging status monitoring and interlocking protection mechanism, cannot guarantee the safety, economy, and continuity of production. There is an urgent need for a reliable detection and control solution to identify bagging failures and promptly stop the filling process when an anomaly occurs, thereby avoiding the occurrence of the aforementioned series of chain problems. Utility Model Content

[0005] Therefore, this utility model provides an automatic powder receiving equipment bagging detection mechanism to solve one or more of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic powder receiving equipment bagging detection mechanism includes:

[0008] Powder discharge pipe;

[0009] A pair of openable and closable bag clamps located outside the powder discharge pipe;

[0010] Multiple conductive patches are disposed at the bagging position of the powder feeding pipe, and the multiple conductive patches are evenly distributed around the periphery of the powder feeding pipe.

[0011] Multiple probes are installed inside the clamping bag, and the positions of the multiple probes correspond one-to-one with the positions of the multiple conductive patches. The heads of the probes elastically protrude from the inner sidewall of the clamping bag.

[0012] A power module, which is electrically connected to the probe;

[0013] The input pins of the PLC module are electrically connected to the conductive patch.

[0014] Furthermore, the probe includes a needle tube, a needle body, a nut, and a spring. The needle tube has a central hole extending through the length direction. The rear end of the needle body has an external thread, and the front end has a first protruding edge. The middle section of the needle body is movably inserted into the central hole. The spring is pre-compressed and sleeved on the needle body. The two ends of the spring abut against the front end of the needle tube and the rear side of the first protruding edge, respectively. The nut is screwed and fixed on the external thread.

[0015] Furthermore, the inner wall of the clamping bag is semi-circular, and multiple through holes are provided on the semi-circular side wall. A sleeve is provided at the rear end of the through hole, and the probe is placed inside the sleeve. The needle tube is fixed to the sleeve.

[0016] Furthermore, the front end of the needle tube is provided with a second protruding edge, the middle of the outer periphery of the needle tube is provided with a groove, the needle tube passes through the sleeve, the rear side of the second protruding edge abuts against the front end face of the through hole, the groove is exposed at the rear end of the sleeve and a retaining ring is provided in the groove.

[0017] Furthermore, multiple nuts are provided, and the multiple nuts are screwed together on the external thread.

[0018] Furthermore, the conductive patch is a copper patch.

[0019] Furthermore, six copper patches and six probes are respectively provided.

[0020] Furthermore, the power module is a 24V power supply.

[0021] Furthermore, an intermediate relay is connected in series on the electrical connection line between the power module and the probe, and the control signal input pin of the intermediate relay is electrically connected to the output pin of the PLC module.

[0022] The present invention has the following advantages:

[0023] This design utilizes a combination of multiple conductive patches evenly distributed around the toner dispensing pipe and corresponding elastic probes within the bag clamps to create a comprehensive bagging status detection loop. After the automatic toner dispensing equipment applies the bag, the bag clamps tighten around the toner dispensing pipe. If the plastic bag is correctly placed, the probes and conductive patches make indirect contact through the bag body, preventing the formation of a complete electrical circuit. If the bag is misaligned, not applied, or damaged, at least one detection point (corresponding conductive patch and probe) will have its circuit connected (i.e., the probe at that detection point is in direct contact with the conductive patch and is energized). The PLC module receives the current from the conductive patch at that monitoring point, allowing for anomaly identification. This design completely solves the defect of existing technologies where "bagging abnormalities are not detected and filling continues," avoiding the waste of expensive finished products from directly filling single bags of toner outside the bag, significantly reducing material loss costs in the toner packaging process, and improving production economics.

[0024] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0026] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] Figure 1 A schematic diagram of an automatic powder receiving equipment bagging detection mechanism provided for an embodiment of this utility model (only one detection point consisting of a probe and a conductive patch is shown).

[0028] Figure 2 A schematic diagram of the probe structure of a bagging detection mechanism for an automatic powder receiving device provided in an embodiment of this utility model;

[0029] Figure 3A schematic diagram of the structure of an automatic powder receiving equipment bagging detection mechanism with the probe mounted on the bag clamp provided in an embodiment of this utility model;

[0030] Figure 4 This is a schematic diagram of the electrical control principle of an automatic powder receiving equipment bagging detection mechanism provided in an embodiment of the present utility model.

[0031] In the diagram: 1. Conductive patch; 2. Probe; 21. Needle tube; 22. Needle body; 23. Nut; 24. Spring; 25. Sleeve; 211. Second protrusion; 212. Groove; 221. First protrusion; 3. Power module; 31. Intermediate relay; 4. PLC module; 5. Alarm; 6. Industrial computer; 7. Powder discharge pipe; 8. Bag clamp. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The automatic toner dispensing equipment bagging detection mechanism of this application addresses the core issues of existing automatic toner dispensing equipment, such as toner waste, production interruption, equipment damage, and safety hazards caused by the lack of effective bagging monitoring and interlocking protection mechanisms. Through modular and precise structural design, it achieves multi-dimensional technical improvements and practical benefits.

[0034] like Figure 1-4 As shown, this embodiment provides an automatic powder receiving equipment bag detection mechanism, including a powder discharging pipe 7, a bag clamping clamp 8, multiple conductive patches 1, multiple probes 2, a power module 3, a PLC module 4, and several leads (wires).

[0035] The powder dispensing pipe 7 and the bag clamp 8 are existing structures on the automatic powder receiving equipment. The lower end of the powder dispensing pipe 7 has a bag-filling position for bagging. The bag clamp 8 is located outside the powder dispensing pipe 7 and is opened and closed under the control of the industrial control computer 6 of the automatic powder receiving equipment. When it is opened, it fills or removes the bag. When it is closed (it can completely clamp the bag without leaving any gaps, i.e., there is a "sealing surface"), it clamps and fixes the bag opening of the powder bag to the bag-filling position at the lower end of the pipe.

[0036] Conductive patches 1 are disposed at the bagging position of the powder dispensing pipe 7, and multiple conductive patches 1 are evenly distributed around the periphery of the powder dispensing pipe 7. In this embodiment, the conductive patches 1 are made of copper and there are 6 of them. Exemplarily, a groove is provided at the bagging position of the powder dispensing pipe 7, and the copper patches are welded into the groove, with the outer side of the copper patches flush with the outer peripheral surface of the bagging position of the powder dispensing pipe 7; it should be noted that the groove is positioned to avoid the sealing surfaces of the powder dispensing pipe 7 and the bag clamp 8.

[0037] The probes 2 are installed inside the bag clamp 8, and the positions of multiple probes 2 correspond one-to-one with the positions of multiple conductive patches 1. The head of the probe 2 elastically protrudes from the inner side wall of the bag clamp 8. In this embodiment, six probes 2 are also provided. The probe 2 includes a needle tube 21, a needle body 22, a nut 23, and a spring 24. The needle tube 21 is provided with a central hole that runs through the length direction. The rear end of the needle body 22 is provided with an external thread, and the front end is provided with a first protrusion 221. The front side of the first protrusion 221 is an arc-shaped surface with rounded corners. The middle section of the needle body 22 is movably inserted into the central hole. The spring 24 is pre-compressed and sleeved on the needle body 22. The two ends of the spring 24 abut against the front end of the needle tube 21 and the rear side of the first protrusion 221, respectively. The nut 23 is screwed and fixed on the external thread. Multiple nuts 23 are provided, and the multiple nuts 23 are screwed together on the external thread.

[0038] The power module 3 is electrically connected to the probe 2. In this embodiment, the power module 3 and the probe 2 are connected via leads; the power module 3 is a 24V power supply. Exemplarily, the two ends of the leads are soldered to the electrodes of the power module 3 and the rear end of the needle body 22 of the probe 2. Generally, the needle tube 21 is made of insulating material to prevent leakage.

[0039] The input pins of PLC module 4 are electrically connected to conductive patch 1. In this embodiment, the input pins of PLC module 4 and conductive patch 1 are connected by leads. Exemplarily, the two ends of the leads are soldered to the input pins of PLC module 4 and conductive patch 1, respectively.

[0040] In the prior art, the inner wall of the clamping bag 8 is semi-circular. In this embodiment, multiple through holes are provided on the semi-circular sidewall, and a sleeve 25 is provided at the rear end of the through holes. The length direction of the sleeve 25 extends radially along the inner wall of the semi-circular sidewall. The probe 2 is disposed inside the sleeve 25, and the needle tube 21 is fixed to the sleeve 25. Specifically, a second protruding edge 211 is provided at the front end of the outer periphery of the needle tube 21, and a groove 212 is provided in the middle of the outer periphery of the needle tube 21. The needle tube 21 passes through the sleeve 25, and the rear side of the second protruding edge 211 abuts against the front end face of the through hole. The groove 212 protrudes at the rear end of the sleeve 25, and a retaining ring is provided in the groove 212 to fix the needle tube 21 to the sleeve 25, thus completing the fixation of the probe 2. Exemplarily, the sleeve 25 is welded and fixed to the rear end of the through hole in the semi-circular sidewall.

[0041] An intermediate relay 31 is connected in series on the electrical connection line between the power module 3 and the probe 2. The control signal input pin of the intermediate relay 31 is electrically connected to the output pin of the PLC module 4. When the bag clamp 8 clamps the opening of the powder feeding pipe 7 (the bagging position), the PLC module 4 controls the six intermediate relays 31 to turn on (the purpose is to individually control the energization of each probe 2; it should be noted that only one intermediate relay 31 can also be used, which acts as the master switch for the six intermediate relays 31, realizing the simultaneous energization or de-energization of the six probes 2; the use of six intermediate relays 31 or one intermediate relay 31 depends on the situation). Regardless of whether the bagging detection is successful, the six intermediate relays should be disconnected within a set number of seconds to de-energize the probes 2 and prevent the probes 2 from being in a continuously energized state and causing danger. If the bagging is successful, the six probes 2 and the six patches are simultaneously isolated by the plastic bag, and no circuit can be formed, so the next step of powder filling can continue. If bagging fails, meaning at least one of the six probes 2 is not isolated by the plastic bag and the conductive patch 1 and probe 2 cannot form a circuit, the PLC module 4 immediately issues an alarm (i.e., one output pin of the PLC module 4 is connected to the control switch (such as a relay) of the alarm 5, sending an "alarm signal" to the alarm 5, which triggers an audible and visual alarm). This alerts the employee that bagging has failed and is interlocked with the industrial control computer 6 (i.e., one output pin of the PLC module 4 sends an "abnormal signal" to the industrial control computer 6, which then pauses the next "powder filling" operation based on this signal), stopping all actions and ceasing powder filling.

[0042] The automatic powder receiving equipment bagging detection mechanism provided in this embodiment has the following advantages:

[0043] 1. Accurately identify bagging status to reduce waste and significantly improve economic efficiency. Our design utilizes a combination of multiple conductive patches evenly distributed around the toner dispensing pipe and corresponding elastic probes inside the bag clamps to create a comprehensive bagging status detection loop. After the automatic toner dispensing equipment bags the toner, the clamps tighten around the pipe. If the bag is correctly placed, the probes and conductive patches make indirect contact through the bag, preventing the formation of a complete electrical circuit. If the bag is misaligned, not properly placed, or damaged, at least one detection point (corresponding conductive patch and probe) will have its circuit connected (i.e., the probe at that point is in direct contact with the conductive patch and energized). The PLC module receives the current from the conductive patch at that monitoring point, allowing for anomaly identification. This design completely solves the problem of "filling without detecting bagging abnormalities" in existing technologies, avoiding expensive waste of toner by directly filling individual bags outside the bag, significantly reducing material loss costs in the toner packaging process, and improving production economics.

[0044] 2. Immediate interlocking control for abnormalities ensures production continuity and reduces capacity and labor time losses. When the PLC module detects a bagging abnormality, it sends an alarm signal to the alarm via an output pin (this pin is different from the output pin of the "electrically connected intermediate relay"). The alarm uses sound and / or light to alert staff to handle the abnormality promptly. Simultaneously, it outputs an "abnormal signal" to the industrial control computer of the automatic powder receiving equipment, which stops the next "filling" operation. This forms a feedback control mechanism with the filling module of the automatic powder receiving equipment. A "bagging abnormality" directly triggers the filling module to stop, eliminating the need for manual interruption and cleaning after toner overflow. Production can be resumed simply by quickly adjusting the bagging status. Compared to existing technologies where "toner overflow necessitates a complete machine shutdown and extensive manual cleaning," this mechanism significantly shortens the abnormality handling time, reduces production line downtime and labor time losses, ensures the continuous and stable operation of the automatic powder receiving equipment, and improves overall capacity utilization.

[0045] 3. Reduce labor burden, improve working environment, and protect personnel health. In existing technologies, toner spillage requires operators to interrupt their work and spend a significant amount of time cleaning up the scattered toner, increasing labor burden and causing suspended toner to pollute the working environment. Our organization, by preventing toner spillage, directly eliminates the extra work of "cleaning up spilled toner," reducing the labor intensity of operators. Simultaneously, the absence of toner dispersion reduces the concentration of suspended toner in the air, avoiding toner irritation to the operator's respiratory system. This optimizes working conditions from two dimensions: "reducing labor costs" and "protecting personnel health."

[0046] 4. Prevent equipment contamination and wear, extend equipment life, and reduce maintenance costs. Toner is fine and easily adheres; in existing technologies, scattered toner can enter the equipment, causing mechanical contamination, component blockage (such as transmission gears and pipe interfaces), or accelerated wear of bearings, motors, and other parts, increasing the frequency of equipment failures. Our system prevents toner overflow, thus avoiding toner corrosion of the equipment's internal structure at the source, reducing equipment failures caused by toner contamination (such as jamming and decreased accuracy), lowering equipment maintenance frequency and repair costs; simultaneously, it extends the service life of core components (such as toner dispensing pipes and bag clamps), ensuring the long-term stable operation of the automatic toner dispensing equipment and reducing the risk of production interruptions due to equipment failure.

[0047] 5. Completely eliminates or reduces the risk of dust explosion, significantly improving production safety. Toner is a combustible dust. When the toner concentration in the air reaches its explosive limit, it can easily explode upon contact with an ignition source, posing a significant safety risk to existing automatic toner dispensing equipment. Our design directly avoids the formation of a "high-concentration combustible dust environment" by preventing toner spillage, eliminating the prerequisite for dust to reach its explosive limit at the source. This design provides a crucial guarantee for the safe operation of automatic toner dispensing equipment, complies with industrial production safety standards, and significantly improves the safety level of the toner packaging process.

[0048] 6. Strong structural adaptability and detection reliability enhance the practical value of the mechanism. The probe of this mechanism adopts a "needle tube + adjustable needle body + multi-nut fixing" design. The extension length of the needle body can be adjusted by the engagement position of the nuts. The design of 6 detection points (6 each for conductive patches and probes) avoids misjudgment caused by the failure of a single detection point, thus improving detection reliability. In addition, the selection of a 24V low-voltage power supply module also complies with industrial electrical safety standards, further enhancing the practical adaptability of the mechanism.

[0049] In summary, the bagging inspection mechanism proposed in this application not only solves the core defects of existing technologies, but also provides reliable technical support for the industrial application of automatic powder receiving equipment from five core dimensions: "economy, continuity, human-friendlyness, equipment stability, and safety". It has significant practical application value and promotion significance.

[0050] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A bagging detection mechanism for an automatic powder receiving device, characterized in that, include: Powder discharge pipe (7); A pair of openable and closable bag clamps (8) located outside the powder discharge pipe (7); Multiple conductive patches (1) are disposed at the bagging position of the powder feeding pipe (7), and the multiple conductive patches (1) are evenly distributed around the powder feeding pipe (7). Multiple probes (2) are installed inside the clamping bag clamp (8). The positions of the multiple probes (2) correspond one-to-one with the positions of the multiple conductive patches (1). The head of the probe (2) protrudes elastically from the inner wall of the clamping bag clamp (8). A power module (3) is electrically connected to the probe (2); The input pins of the PLC module (4) are electrically connected to the conductive patch (1).

2. The automatic powder receiving equipment bagging detection mechanism as described in claim 1, characterized in that, The probe (2) includes a needle tube (21), a needle body (22), a nut (23), and a spring (24). The needle tube (21) has a central hole that runs through the length direction. The needle body (22) has an external thread at its rear end and a first protrusion (221) at its front end. The middle section of the needle body (22) is movably inserted into the central hole. The spring (24) is pre-compressed and sleeved on the needle body (22). The two ends of the spring (24) abut against the front end of the needle tube (21) and the rear side of the first protrusion (221), respectively. The nut (23) is screwed and fixed on the external thread.

3. The automatic powder receiving equipment bagging detection mechanism as described in claim 2, characterized in that, The inner wall of the clamp (8) is semi-circular, and multiple through holes are provided on the semi-circular side wall. A sleeve (25) is provided at the rear end of the through hole. The probe (2) is inserted into the sleeve (25), and the needle tube (21) is fixed to the sleeve (25).

4. The automatic powder receiving equipment bagging detection mechanism as described in claim 3, characterized in that, The needle tube (21) has a second protruding edge (211) at the front end of its outer periphery and a groove (212) in the middle of its outer periphery. The needle tube (21) passes through the sleeve (25). The rear side of the second protruding edge (211) abuts against the front end of the through hole. The groove (212) is exposed at the rear end of the sleeve (25) and a retaining ring is provided in the groove (212).

5. The automatic powder receiving equipment bagging detection mechanism as described in claim 2, characterized in that, Multiple nuts (23) are provided, and the multiple nuts (23) are screwed together on the external thread.

6. The automatic powder receiving equipment bagging detection mechanism as described in claim 1, characterized in that, The conductive patch (1) is a copper patch.

7. The automatic powder receiving equipment bagging detection mechanism as described in claim 6, characterized in that, There are six copper patches and six probes (2).

8. The automatic powder receiving equipment bagging detection mechanism as described in claim 1, characterized in that, The power module (3) is a 24V power supply.

9. The automatic powder receiving equipment bagging detection mechanism as described in claim 1, characterized in that, An intermediate relay (31) is connected in series on the electrical connection line between the power module (3) and the probe (2). The control signal input pin of the intermediate relay (31) is electrically connected to the output pin of the PLC module (4).

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