Self-cleaning packaging mechanical device
By designing self-cleaning push bag assembly and scraper assembly in the powder material packaging machine, the problem of dust pollution during powder material packaging is solved, automatic dust cleaning is achieved, and filling quality and safety of the working environment are improved.
Patent Information
- Application Number
- CN202411459159.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-02-28
AI Technical Summary
There is a lot of dust when packaging existing powder material packaging machines, especially when the bag pushes the bag to leave the discharge port, the powder is prone to falling off, contaminating the packaging bag and bag holder, reducing the filling quality and increasing the difficulty of cleaning.
A self-cleaning packaging mechanical device is designed, including a push bag assembly and a scraper assembly. The push bag assembly concentrates dust into the scraper assembly through the push board and the dust outlet groove. The scraper assembly realizes automatic dust cleaning through the cooperation of the scraper and the dust collection barrel.
It effectively reduces blanking at the discharge port, prevents dust from contaminating the packaging bags and bag holders, improves the filling quality, reduces the time and labor of cleaning work, and improves the safety of the working environment.
Smart Images
Figure CN119527609A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a packaging mechanical device, in particular to a mechanical device used for bagging powder materials. Background Art
[0002] In the prior art, there is a powder material packaging machine, whose structure mainly includes a frame, a powder discharging mechanism is arranged on the frame, the discharging mechanism is connected to the discharging port arranged on the side of the frame, a bag holding frame is arranged below the discharging port, a bag pushing plate is arranged between the bag holding frame and the discharging port, the bag pushing plate is arranged on the frame through a guide rail roller mechanism, and a bag pushing cylinder is also arranged between the bag pushing plate and the frame. When working, a device with a lateral opening on the upper part puts the packaging bag on the material nozzle, and the bag is tightly clamped on the material nozzle through a material nozzle tightening device. The bottom of the packaging bag is supported on the bag holding frame, and the material is discharged through the material nozzle discharging port, and powder or granular material can be filled into the packaging bag. In order to ensure accurate loading and reduce impact, the bag holding frame is arranged on the frame through a lifting mechanism and a weighing mechanism. As the material is filled, the bag holding frame is lifted and lowered by the lifting mechanism, and cooperates with a vibration motor to leave filling space in the bag body; after the powder material is filled, the packaging bag can be horizontally moved by the pushing plate and the bag holding device, separated from the material nozzle discharging port, and then the next step of packaging is carried out.
[0003] The disadvantage is that the existing powder material packaging machine produces a lot of dust during packaging. The dust mainly comes from the discharge port, especially at the moment when the bag pushing plate pushes the packaging bag away from the discharge port, powder falls at the discharge port, part of the powder falls on the packaging bag, polluting the surface of the bag, and part of the powder falls on the bag supporting rack. Since the supporting surface of the bag supporting rack is a plane, the powder will adhere to the bottom of the bag when the powder is filled next time. The presence of the above powder reduces the quality of powder filling, and the subsequent cleaning workload is large. Cleaning during the filling process is also time-consuming and laborious. At the same time, it is easy to cause dust overflow, reducing the safety of the working environment. Summary of the invention
[0004] The purpose of the present invention is to provide a self-cleaning packaging mechanical device, so that during the filling process of powder materials, the influence of falling materials at the discharge port on the filling quality can be reduced. Not only is it difficult for materials to fall onto the packaging bag, but also the bottom of the bag will not stick to the materials, thereby achieving the technical effect of self-cleaning.
[0005] The object of the present invention is achieved in this way: a self-cleaning packaging mechanical device comprises a frame, a powder discharging mechanism is arranged on the frame, the discharging mechanism is connected to the discharging port for set packaging bags arranged on the side of the frame, a bag holding device is arranged below the discharging port, the bag holding device is arranged on the lifting mechanism, a bag pushing assembly is arranged between the bag holding device and the discharging port, a guide wheel seat is connected to the frame, a bag pushing cylinder is connected to the guide wheel seat, guide wheel groups are respectively arranged on the upper and lower sides of the guide wheel seat, the cylinder body of the bag pushing cylinder is fixed to the guide wheel seat, and the other end of the bag pushing cylinder is connected to the bottom plate, guide rails are respectively arranged on both sides of the bottom plate, and the guide rails are movably arranged between the guide wheel groups; the bag pushing assembly comprises a push plate and a dust outlet groove which are perpendicular to each other, and a linear cylinder is installed on the upper side of the bottom plate. The extended end of the piston rod of the cylinder is connected to the back of the push plate; the dust outlet trough is located below the powder discharging mechanism, a dust collecting bucket is provided below one end outlet of the dust outlet trough, a scraper assembly is provided between the dust outlet trough and the powder discharging mechanism, the scraper assembly includes a scraper cylinder bracket straddling the dust outlet trough, both sides of the scraper cylinder bracket are fixed on the guide wheel seat, a scraper lifting cylinder is provided on the scraper cylinder bracket, the downward extended end of the piston rod of the scraper lifting cylinder is connected to the front and rear scrapers through a connecting piece, the scraper matches the shape of the dust outlet trough, and the scraper can be pushed close to or away from the bottom of the dust outlet trough by the scraper lifting cylinder; the packaging bag is pushed away from the discharge port by the bag pushing cylinder and the bag holding device, and further by the linear cylinder movement, the dust falling on the bottom of the dust outlet trough is scraped into the dust collecting bucket by the relay of the two scrapers.
[0006] When the device is working, the initial state is that the bag-pushing cylinder and the linear cylinder are in a contracted state, the push plate allows the discharge port to be bagged, the manipulator puts the packaging bag on the discharge port, and then the discharge device discharges the material, and the powder material is put into the packaging bag. After the bag reaches the set weight, the bag-pushing cylinder and the bag-holding device push the packaging bag away from the discharge port, and then the bag-holding manipulator takes the packaging bag away for the next step of sealing the bag port. The linear cylinder further pushes the push plate to extend, so that the push plate passes under the discharge port, and the dust falling from the discharge port falls into the dust outlet trough. In the dust outlet trough, the scraper lifting cylinder can push the scraper to approach or move away from the bottom of the dust outlet trough. When the scraper is lowered and the bag pushing cylinder and the linear cylinder are working, a relative movement is generated between the scraper and the dust outlet trough, so that the dust on the rear side of the front scraper and the rear scraper is scraped backwards. During the next scraping, the rear scraper scrapes the dust scraped by the front scraper into the dust collecting bucket. Through the coordinated movement of the bag pushing cylinder and the linear cylinder, the dust falling on the bottom of the dust outlet trough is scraped into the dust collecting bucket through the relay of the two scrapers. It can be seen from the above working process that the beneficial effect of the present invention is that during the filling process of the powder material, the falling of the material at the discharge port can be reduced, not only the packaging bag is not easily contaminated with dust, but also the dust falling on the bag holding device is greatly reduced, so that the bottom of the bag body is not easy to adhere to the material, and the technical effect of self-cleaning is achieved. The device is particularly suitable for the packaging of powder materials and granular materials with a certain fluidity.
[0007] Furthermore, the stroke of the bag-pushing cylinder is just enough to enable the push plate to push the packaging bag away from the discharge port; the stroke of the linear cylinder enables the rear scraper to pass over the front of the powder scraped by the front scraper, and at the same time, the material falling from the discharge port just falls into the dust discharge trough. On the one hand, this solution can ensure that the material falling from the discharge port can fall into the dust discharge trough, reducing the possibility of powder overflow. At the same time, when the front scraper is scraping, the powder is scraped to the middle position of the dust discharge trough, and the rear scraper can pass over the front of the powder scraped by the front scraper. In the next scraping, the rear scraper can scrape the powder in the middle position into the dust collection bucket.
[0008] Furthermore, in order to facilitate pushing the bag, a bag opening push block is connected to the upper front end of the push plate, and the shape of the bag opening push block is consistent with the arc shape of the lower side of the discharge port.
[0009] Furthermore, a dust suction duct is provided on the frame near the discharge port. The dust suction duct can be used to suck away the overflowed dust together with the surrounding air, and further dedusted by the dust collector before being discharged. This structure ensures a clean environment around the packaging machine.
[0010] Furthermore, the bag holding device includes a bag holding frame seat body, side panels are respectively provided on both sides of the bag holding frame seat body, two guide wheel groups are provided on the side baffle plates, and two guide rails two are provided in cooperation with the guide wheel groups two. The end of the guide rail two extending from the side panel on one side is connected through a pin mounting plate, and a plurality of parallel pins with consistent horizontal heights are provided on the pin mounting plate. The side panels on both sides of the bag holding frame seat body are respectively provided with holes for accommodating the pins to pass through. A bag holding cylinder is provided on the bag holding frame seat body, and the protruding end of the piston rod of the bag holding cylinder is connected to the pin mounting plate. During operation, the pin mounting plate can be driven by the bag supporting cylinder to drive the pins to move, so that the pins are inserted into the holes on the side plate. The upper surfaces of the plurality of pins form a virtual plane for supporting the bag as a whole. Since the surface of the pins is circular, the contact surface between the pins and the bag body of the packaging bag is very small as a whole, which is much smaller than the contact area between the solid plane and the bag body. The dust falling from the drop port can pass through the pins and fall on the bag supporting frame seat body, and can be further collected. The surface of the pins itself is not easy to accumulate material, so the possibility of powder sticking to the bottom of the bag body can be greatly reduced.
[0011] Furthermore, guide plates opened in an eight-shaped shape are respectively provided on the side plates on both sides of the bag holding frame body. The guide plates can guide the packaging bags onto the bag holding device and ensure that the packaging bags are stable during the entire filling process.
[0012] Furthermore, a dust removal ring is provided in the hole, and a dust hopper is provided at the front end of the bag support frame body. The relative movement between the pin and the hole is itself a cleaning process for the pin surface, and the dust on the pin surface can be scraped off by the side. After the dust removal ring is used, it has a better dust removal effect. The dust removal ring can be a wool strip, a brush, a leather ring, etc. The dust hopper can guide the collected dust out.
[0013] In order to prevent dust from falling on the piston rod of the bag holding cylinder and causing increased wear, a retractable dust cover is provided on the outer periphery of the piston rod of the bag holding cylinder. The dust cover can be a bellows, an elastic rubber tube or a soft cloth bag.
[0014] Furthermore, a vibration motor is provided at the bottom of the bag holding frame body, the bag holding frame body is connected to the mounting frame via a plurality of springs, the mounting frame is connected to the slider mounting seat via a slider guide rod mechanism, the slider mounting seat is fixed on the frame, and a bracket lifting cylinder is provided between the mounting frame and the slider mounting seat. When the vibration motor vibrates, the powder material in the packaging bag can be vibrated and compacted, and the dust falling on the bag body and the insertion pin can also be shaken off to reduce dust contamination. As the material is continuously filled into the packaging bag, the bracket lifting cylinder can be lowered with the weight of the bagged material, so that the entire bag holding device is lowered as a whole, ensuring that there is filling space in the bag body, and when the powder falls, the falling distance is short, which can reduce the possibility of impact and dust overflow.
[0015] In order to further reduce the impact of dust on the movement of the guide rails 1 and 2, the tops of the guide rails 1 and 2 are in a pointed shape with a convex center. The pointed shape has two inclined surfaces, and the guide wheel group 1 and the guide wheel group 2 can push the dust that falls on the guide rails 1 and 2 down, so that the dust will not gather on the guide rails 1 and 2, ensuring smooth movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure after part of the powder discharging mechanism of the present invention is removed.
[0018] Figure 3 for Figure 2 The main view of the corresponding structure.
[0019] Figure 4 For Figure 3 Corresponding right view.
[0020] Figure 5 For Figure 3 The corresponding top view.
[0021] Figure 6 for Figure 5 AA cross-section diagram.
[0022] Figure 7 It is a three-dimensional partial schematic diagram of the peripheral structure of the bag pushing assembly.
[0023] Figure 8 It is a bottom view of the peripheral structure of the bag pushing assembly.
[0024] Fig. 9 It is a partial schematic diagram of the peripheral structure of the bag pushing assembly after the dust bucket is removed.
[0025] Fig.10 is a three-dimensional partial schematic diagram of the peripheral structure of the bag pushing component, and Figure 7 The difference is that the bag pushing cylinder and the linear cylinder have completely pushed the push plate out.
[0026] Fig.11 For Fig.10 The corresponding local structure of the three-dimensional Figure 1 .
[0027] Fig.12 for Fig.11 The left view of the structure shows the structure of the bag pushing cylinder and guide rail one.
[0028] Fig.13 for Fig.11 A bottom view of the structure shows the bag pushing cylinder structure.
[0029] Fig.14 For Fig.10 The corresponding local structure of the three-dimensional Figure 2 .
[0030] Fig.15 It is a three-dimensional diagram of the bag holding device.
[0031] Fig.16 It is a front view of the bag holding device.
[0032] Fig.17 It is a cross-sectional view of the bag holding device.
[0033] Fig.18 The three-dimensional structure of the bag holding device is partially removed Figure 1 .
[0034] Fig.19 The three-dimensional structure of the bag holding device is partially removed Figure 2 .
[0035] Fig. 20 It is a three-dimensional diagram of the upper structure of the bag holding device.
[0036] Fig.21 For Fig. 20 The corresponding main view.
[0037] Fig. 22 For Fig.21 Corresponding right view.
[0038] Fig.23 for Fig. 22 The partial enlarged view of C in the middle shows the structure of guide rail two.
[0039] Fig.24 for Fig.12 The partial enlarged view of B shows the structure of guide rail one.
[0040] In the figure, 1 is a frame, 2 is a dust outlet trough, 3 is a dust collecting bucket, 4 is a scraper cylinder bracket, 5 is a discharging mechanism, 6 is a discharging port, 7 is a push plate, 8 is a bag support frame seat, 9 is a guide plate, 10 is a guide wheel group 2, 11 is a guide rail 2, 12 is a dust hopper, 13 is a pin mounting plate, 14 is a linear cylinder, 15 is a bag push cylinder, 16 is a scraper cylinder, 17 is a dust suction air duct, 18 is a pin, 19 is a dust cover, 20 is a slider guide rod mechanism, 21 is a mounting frame, 22 is a slider mounting seat, 23 is a bag opening push block, 24 is a vibration motor, 25 is a bottom plate, 26 is a guide wheel seat, 27 is a scraper, 28 is a simulated powder, 29 is a spring, 30 is a bracket lifting cylinder, 31 is a connecting piece, 32 is a guide rail 1, 33 is a guide wheel group 1, 34 is a side plate, and 35 is a bag support cylinder. DETAILED DESCRIPTION
[0041] like Figure 1-24 As shown, a self-cleaning packaging mechanical device comprises a frame 1, on which a powder discharging mechanism 5 is provided, the discharging mechanism 5 is connected to a discharging port 6 for set packaging bags arranged on the side of the frame 1, a bag holding device is provided below the discharging port 6, the bag holding device is arranged on the lifting mechanism, a bag pushing assembly is provided between the bag holding device and the discharging port 6, a guide wheel seat 26 is connected to the frame 1, a bag pushing cylinder 15 is connected to the guide wheel seat 26, guide wheel groups 33 are respectively provided on the upper and lower sides of the guide wheel seat 26, the cylinder body of the bag pushing cylinder 15 is fixed to the guide wheel seat 26, the other end of the bag pushing cylinder 15 is connected to the bottom plate 25, guide rails 32 are respectively provided on both sides of the bottom plate 25, and the guide rails 32 are movably arranged between the guide wheel groups 33; the bag pushing assembly comprises a push plate 7 and a dust outlet trough 2 which are arranged perpendicular to each other, a linear cylinder 14 is installed on the upper side of the bottom plate 25, and the piston of the linear cylinder 14 The extended end of the rod is connected to the back of the push plate 7; the dust outlet trough 2 is located below the powder discharge mechanism 5, and a dust collecting bucket 3 is provided below one end outlet of the dust outlet trough 2. A scraper 27 assembly is provided between the dust outlet trough 2 and the powder discharge mechanism 5. The scraper 27 assembly includes a scraper cylinder bracket 4 straddling the dust outlet trough 2, and both sides of the scraper cylinder bracket 4 are fixed on the guide wheel seat 26. A scraper 27 lifting cylinder is provided on the scraper cylinder bracket 4. The downward extended end of the piston rod of the scraper 27 lifting cylinder is connected to the front and rear scrapers 27 through a connecting piece 31. The scraper 27 matches the shape of the dust outlet trough 2, and the scraper 27 lifting cylinder can be used to push the scraper 27 close to or away from the bottom of the dust outlet trough 2; the packaging bag can be pushed away from the discharge port 6 by the bag pushing cylinder 15, and further moved by the linear cylinder 14, so that the dust falling on the bottom of the dust outlet trough 2 is scraped into the dust collecting bucket 3 through the relay of the two scrapers 27.
[0042] The stroke of the bag pushing cylinder 15 is just enough to enable the push plate 7 to push the packaging bag away from the discharge port 6; the stroke of the linear cylinder 14 enables the rear scraper 27 to pass over the front of the powder scraped by the front scraper 27, and at the same time, the material falling from the discharge port 6 just falls into the dust discharge trough 2. On the one hand, this solution can ensure that the material falling from the discharge port 6 can fall into the dust discharge trough 2, reducing the possibility of powder overflow. At the same time, when the front scraper 27 scrapes, the powder is scraped to the middle position of the dust discharge trough 2, as shown in the figure to simulate the powder 28, and the rear scraper 27 can pass over the front of the simulated powder 28 scraped by the front scraper 27. In the next scraping, the rear scraper 27 can scrape the simulated powder 28 in the middle position into the dust collecting bucket 3.
[0043] In order to facilitate pushing the bag, a bag opening pushing block 23 is connected to the upper front end of the pushing plate 7 , and the shape of the bag opening pushing block 23 is consistent with the arc shape of the lower side of the discharge port 6 .
[0044] A dust suction duct 17 is provided on the frame 1 near the discharge port 6. The dust suction duct 17 can be used to suck away the overflowing dust together with the surrounding air, and further dedusted by the dust collector before being discharged. This structure ensures that the surrounding environment of the packaging machine is clean.
[0045] The bag holding device includes a bag holding frame seat body 8, side panels 34 are respectively provided on both sides of the bag holding frame seat body 8, a guide wheel group 2 10 is provided on the side baffle plate, and two guide rails 2 11 are provided in cooperation with the guide wheel group 2 10. The end of the guide rail 2 11 extending from the side panel 34 on one side is connected through a pin mounting plate 13, and the pin mounting plate 13 is provided with a plurality of parallel pins 18 with the same horizontal height. The side panels 34 on both sides of the bag holding frame seat body 8 are respectively provided with holes for accommodating the pins 18 to pass through. A bag holding cylinder 35 is provided in the bag holding frame seat body 8, and the protruding end of the piston rod of the bag holding cylinder 35 is connected to the pin mounting plate 13.
[0046] Guide plates 9 opened in an eight-shaped pattern are respectively provided on the side plates 34 on both sides of the bag support frame body 8. The guide plates 9 can guide the packaging bag to the bag support device and ensure that the packaging bag is stable during the entire filling process.
[0047] A dust removal ring is provided in the hole, and a dust hopper 12 is provided at the front end of the bag support frame body 8. The relative movement between the pin 18 and the hole is a cleaning process for the surface of the pin 18. The dust on the surface of the pin 18 can be scraped off by the side. After the dust removal ring is used, it has a better dust removal effect. The dust removal ring can be a wool strip, a brush, a leather ring, etc. The dust hopper 12 can guide the collected dust out.
[0048] In order to prevent dust from falling on the piston rod of the bag holding cylinder 35 and causing increased wear, a retractable dust cover 19 is provided on the outer periphery of the piston rod of the bag holding cylinder 35. The dust cover 19 can be a bellows, an elastic rubber tube or a soft cloth bag.
[0049] A vibration motor 24 is arranged at the bottom of the bag holding rack body 8, and the bag holding rack body 8 is connected to the mounting frame 21 via a plurality of springs 29, and the mounting frame 21 is connected to the slider mounting seat 22 via a slider guide rod mechanism 20, and the slider mounting seat 22 is fixed on the frame 1, and a bracket lifting cylinder 30 is arranged between the mounting frame 21 and the slider mounting seat 22.
[0050] In order to further reduce the dust from affecting the movement of the guide rail 1 32 and the guide rail 2 11, the top of the guide rail 1 32 and the guide rail 2 11 is in a sharp angle shape with a convex middle. The sharp angle shape has two inclined surfaces, and the guide wheel group 1 33 and the guide wheel group 2 10 can push the dust falling on the guide rail 1 32 and the guide rail 2 11 down, so that the guide rail 1 32 and the guide rail 2 11 will not gather, ensuring smooth movement.
[0051] When the device is working, the initial state is that the bag-pushing cylinder 15 and the linear cylinder 14 are in a contracted state, the push plate 7 allows the discharge port 6 to be bagged, and then the packaging bag is put on the discharge port 6, and then the discharging device discharges the material, and the powder material is put into the packaging bag. After the bagging reaches the set weight, the bag-pushing cylinder 15 pushes the packaging bag away from the discharge port 6, and then the packaging bag is taken away by the manipulator to perform the next step of sealing the bag. The linear cylinder 14 further pushes the push plate 7 to extend, so that the push plate 7 passes under the discharge port 6, and the dust dropped from the discharge port 6 falls into the dust outlet 2. In the dust outlet trough 2, the scraper 27 lifting cylinder can push the scraper 27 close to or away from the bottom of the dust outlet trough 2. When the scraper 27 is lowered and the bag pushing cylinder 15 and the linear cylinder 14 are working, a relative movement is generated between the scraper 27 and the dust outlet trough 2, so that the dust on the rear side of the front scraper 27 and the rear scraper 27 is scraped backwards. During the next scraping, the rear scraper 27 scrapes the dust scraped by the front scraper 27 into the dust collecting bucket 3. Through the coordinated movement of the bag pushing cylinder 15 and the linear cylinder 14, the dust falling on the bottom of the dust outlet trough 2 is scraped into the dust collecting bucket 3 through the relay of the two scrapers 27. On the bag holding device, the pin mounting plate 13 can be driven by the bag holding cylinder 35 to drive the pin 18 to move, so that the pin 18 is inserted into the hole on the side plate 34. The upper surfaces of several pins 18 form a virtual plane for bag holding. Since the surface of the pin 18 is round, the contact surface between it and the bag body of the packaging bag is very small as a whole, which is much smaller than the contact area between the solid plane and the bag body; the dust falling from the drop port can pass through the pin 18 and fall on the bag holding frame seat 8, which can be further collected. The surface of the pin 18 itself is not easy to accumulate material, so the possibility of powder sticking to the bottom of the bag body can be greatly reduced. When the vibration motor 24 vibrates, the powder material in the packaging bag can be vibrated and compacted, and the dust falling on the bag body and the pin 18 can also be shaken off to reduce dust contamination. As the material is continuously filled into the packaging bag, the bracket lifting cylinder 30 can be lowered with the weight of the bagged material, so that the entire bag holding device is lowered as a whole, ensuring that there is filling space in the bag body, and when the powder falls, the falling distance is short, which can reduce the possibility of impact and dust overflow.
[0052] From the above working process, it can be seen that the beneficial effect of the present invention is that during the filling process of powder materials, the falling of the material at the discharge port 6 can be reduced, not only the packaging bag is not easy to be contaminated with dust, but also the bottom of the bag is not easy to adhere to the material, thus achieving the technical effect of self-cleaning. The device is particularly suitable for the packaging of powder materials and granular materials with certain fluidity.
[0053] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.
Claims
1. A self-cleaning packaging mechanical device, comprising a frame, a powder discharging mechanism is arranged on the frame, the discharging mechanism is connected to a discharging port for set packaging bags arranged on the side of the frame, a bag holding device is arranged below the discharging port, the bag holding device is arranged on a lifting mechanism, and a bag pushing assembly is arranged between the bag holding device and the discharging port, characterized in that: The frame is connected to a guide wheel seat, and the guide wheel seat is connected to a bag pushing cylinder. A guide wheel group is respectively arranged on the upper and lower sides of the guide wheel seat. The cylinder body of the bag pushing cylinder is fixed to the guide wheel seat, and the other end of the bag pushing cylinder is connected to the bottom plate. A guide rail is respectively arranged on both sides of the bottom plate, and the guide rail is movably arranged between the guide wheel groups. The bag pushing assembly includes a push plate and a dust outlet groove which are arranged perpendicular to each other. A linear cylinder is installed on the upper side of the bottom plate, and the extended end of the piston rod of the linear cylinder is connected to the back of the push plate. The dust outlet groove is located below the powder discharging mechanism, and a dust collecting bucket is arranged below one end outlet of the dust outlet groove. The dust outlet groove and the powder discharging mechanism are connected to each other. A scraper assembly is provided between the mechanisms, and the scraper assembly includes a scraper cylinder bracket straddling above the dust outlet trough, and the scraper cylinder bracket is fixed on the guide wheel seat on both sides. A scraper lifting cylinder is provided on the scraper cylinder bracket, and the downwardly extending end of the piston rod of the scraper lifting cylinder is connected to two front and rear scrapers through a connecting piece. The scraper matches the shape of the dust outlet trough, and the scraper can be pushed close to or away from the bottom of the dust outlet trough by the scraper lifting cylinder; the packaging bag can be pushed away from the discharge port by the bag pushing cylinder, and further by the linear cylinder movement, the dust falling on the bottom of the dust outlet trough is scraped into the dust collecting bucket through the relay of the two scrapers.
2. A self-cleaning packaging mechanical device according to claim 1, characterized in that: The stroke of the bag pushing cylinder is just enough to enable the push plate to push the packaging bag away from the discharge port; the stroke of the linear cylinder enables the rear scraper to pass in front of the powder scraped by the front scraper, and at the same time enables the powder dropped from the discharge port to fall into the dust discharge trough.
3. A self-cleaning packaging mechanical device according to claim 2, characterized in that: The upper end of the front side of the push plate is connected with a bag opening push block, and the shape of the bag opening push block is consistent with the arc shape of the lower side of the discharge port.
4. A self-cleaning packaging mechanical device according to any one of claims 1 to 3, characterized in that: A dust suction duct is arranged on the frame near the discharge port.
5. A self-cleaning packaging mechanical device according to any one of claims 1 to 3, characterized in that: The bag holding device includes a bag holding frame seat body, side panels are respectively provided on both sides of the bag holding frame seat body, two guide wheel groups are provided on the side baffle plates, and two guide rails are provided in cooperation with the guide wheel groups. The end of the guide rail two extending from the side panel on one side is connected via a pin mounting plate, and a plurality of parallel pins with the same horizontal height are provided on the pin mounting plate. The side panels on both sides of the bag holding frame seat body are respectively provided with holes for the pins to pass through. A bag holding cylinder is provided in the bag holding frame seat body, and the protruding end of the piston rod of the bag holding cylinder is connected to the pin mounting plate.
6. A self-cleaning packaging mechanical device according to claim 5, characterized in that: Guide plates opened in an eight-shaped shape are respectively arranged on the side plates on both sides of the bag holding frame seat body.
7. The self-cleaning packaging mechanical device according to claim 5, characterized in that: A dust removal ring is arranged in the hole, and a dust hopper is arranged at the front end of the bag supporting frame seat body.
8. A self-cleaning packaging mechanical device according to claim 5, characterized in that: The outer periphery of the piston rod of the bag holding cylinder is provided with a retractable dust cover.
9. A self-cleaning packaging mechanical device according to claim 5, characterized in that: A vibration motor is arranged at the bottom of the bag supporting frame body, the bag supporting frame body is connected to the mounting frame via a plurality of springs, the mounting frame is connected to the slider mounting seat via a slider guide rod mechanism, the slider mounting seat is fixed on the frame, and a bracket lifting cylinder is arranged between the mounting frame and the slider mounting seat.
10. A self-cleaning packaging mechanical device according to claim 9, characterized in that: The tops of the guide rails 1 and 2 are in a pointed shape with the middle bulging upward.