A powder packaging machine

Abstract

The application discloses a powder packaging machine, which comprises a metering mechanism, a bag making mechanism and a control system; the metering mechanism is used for quantitative metering and discharging of powder; the bag making mechanism is used for making a packaging bag from a roll of film and packaging the packaging bag filled with the powder; and the control system is used for controlling the metering mechanism and the bag making mechanism to perform a powder packaging task. The powder packaging machine effectively solves the problem that the powder is automatically packaged instead of manually packaged in a powder packaging environment, and achieves the purposes of improving productivity, improving precision, saving manpower and ensuring production safety.

Description

Technical Field

[0001] This invention relates to a powder packaging machine, belonging to the field of packaging equipment technology. Background Technology

[0002] As a crucial link between product production and consumption, the development level of the packaging industry affects the efficiency of product circulation and quality safety. In recent years, automated packaging equipment has gradually become the main development trend of the packaging industry due to its advantages such as high efficiency, precision, and stability. However, with the increasing sophistication of industrial production, ordinary packaging machines can no longer meet the requirements for packaging powdered materials, thus leading to the emergence of powder packaging machines specifically designed for powdered materials.

[0003] Currently, in the field of high-end technology, there is a significant gap between China and foreign countries in high-precision dynamic measurement and intelligent adaptive control. Some core components still rely on imports, which restricts the technological upgrading and product development of domestic enterprises. Domestic enterprises also have relatively insufficient R&D investment, lack basic theoretical research and breakthroughs in key technologies, and the phenomenon of product homogenization is quite serious.

[0004] Therefore, there is an urgent need to design a powder packaging machine with a high level of automation and metering accuracy to realize the automated production of powder packaging, which can ensure the efficiency and accuracy of powder packaging while also saving manpower and ensuring production safety. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a powder packaging machine that effectively solves the problem of automatic powder packaging instead of manual packaging in a powder packaging environment, thereby achieving the goals of improving productivity, improving accuracy, saving manpower, and ensuring production safety.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A powder packaging machine includes a metering mechanism, a bag-making mechanism, and a control system; The metering mechanism is used for quantitative metering and discharging of powder; The bag-making mechanism is used to make packaging bags from roll film and to seal the packaging bags filled with powder; The control system is used to control the metering mechanism and the bag-making mechanism to perform the task of packaging powder.

[0007] Furthermore, the metering mechanism includes a screw motor, a hopper, a hopper wall vibrator, a screw, and a stirring rod. The output shaft of the screw motor is connected to the screw via a coupling. The screw is located inside the hopper. The stirring rod is disposed on the outer wall of the screw. The upper end of the screw is rotatably connected to the top of the hopper via a bearing. The hopper wall vibrator is installed on the outer wall of the hopper.

[0008] Furthermore, the bag-making mechanism includes a film guiding mechanism, a forming device, a sealing mechanism, a film feeding mechanism, and a cutting mechanism; The film guiding mechanism is used to install and convey the roll film used for bag making; The forming device is used to fold a flattened roll of film into a cylindrical structure; The packaging mechanism is used to heat-seal a cylindrical roll of film into a packaging bag with an open top before filling it with powder, and then seal the top opening of the packaging bag after filling it with powder. The cutting mechanism is used to cut and separate the packaging bag; The film feeding mechanism is used to drive the film roll to move within the bag making mechanism at a set speed and along a set path.

[0009] Furthermore, the film guiding mechanism includes a film mounting frame, a drive roller, a pressing roller, a redirecting roller, and a buffer shaft; The film mounting frame mainly consists of a rotating shaft and a chuck. The rotating shaft is used to mount the film, and both ends of the rotating shaft are placed in the grooves of the frame. The drive roller is used to feed the roll film, and the pressing roller is used to adhere the roll film to the drive roller. Both ends of the pressing roller are connected to screw pressing adjustment devices. The redirecting roller is used to change the conveying direction of the film roll; The buffer shaft is movably installed in the long groove of the film guiding mechanism support, located between the pressing roller and the redirecting roller.

[0010] Furthermore, the sealing mechanism includes a sealing cylinder, a mounting plate, a guide rod, a guide plate, a longitudinal sealing device, and a transverse sealing device; The sealing cylinder is fixed on the mounting plate, the guide rod is fixed on the mounting plate, the guide plate is connected to the piston rod of the sealing cylinder, and the sealing cylinder drives the guide plate to move laterally along the guide rod. The longitudinal sealing device is used to heat seal the tubular film longitudinally before filling it with powder, so that the film becomes a packaging bag with openings at the top and bottom. The horizontal sealing device is used to horizontally seal the bottom of the packaging bag before filling with powder and to horizontally seal the top of the packaging bag after filling with powder.

[0011] Furthermore, both the longitudinal sealing device and the transverse sealing device adopt pulse-type sealing devices.

[0012] Furthermore, the film-moving mechanism includes a friction wheel, a synchronous belt pair, a bearing housing, a first gear, a second gear, and a film-moving motor. The film-moving motor drives the synchronous belt transmission, and the synchronous belt drives the first gear to rotate. The first gear meshes with the second gear, and both the first gear and the second gear are provided with friction wheels.

[0013] Furthermore, the cutting mechanism includes a cutting cylinder, a cutting blade support, a heating blade, and a connecting plate. The cutting blade support is fixed on the frame, the cutting cylinder is fixed on the cutting blade support, the connecting plate is connected to the piston rod of the cutting cylinder, and the heating blade is fixed on the connecting plate.

[0014] By adopting the above technical solution, this invention, through a reasonable structural design, realizes the automatic metering of powder materials, bag forming, filling and sealing, and separation of finished products. Under the control of the control system, the processes of metering and discharging, filling the powder into the packaging bag, and sealing the bag are completed sequentially. The film feeding mechanism is activated to pull the film down one packaging bag position, and the cutting mechanism activates the hot cutting device to cut the packaging bag. This achieves mechanized and automated production of powder packaging, ensuring productivity while also saving manpower and ensuring production safety. Attached Figure Description

[0015] Figure 1 This is a front view of the powder packaging machine of the present invention; Figure 2 This is a top view of the powder packaging machine of the present invention; Figure 3 This is a schematic diagram of the metering mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the measuring mechanism of the present invention; Figure 5 This is a schematic diagram of the membrane guiding mechanism of the present invention; Figure 6 This is a schematic diagram of the film guiding mechanism, forming device, packaging mechanism and film feeding mechanism of the present invention; Figure 7 This is a schematic diagram of the film-carrying mechanism of the present invention; Figure 8 This is a schematic diagram of the cutting mechanism of the present invention. Detailed Implementation

[0016] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] like Figure 1 , 2 As shown, this embodiment provides a powder packaging machine, which includes a metering mechanism, a bag-making mechanism, and a control system. The metering mechanism is used for quantitative metering and precise dispensing of powder; the bag-making mechanism is used for forming packaging bags from roll film and sealing the packaging bags filled with powder; the control system is used for controlling the metering mechanism and the bag-making mechanism to perform the powder packaging task.

[0018] like Figures 1-4As shown, the metering mechanism in this embodiment includes a screw motor 9, a hopper 10, a hopper wall vibrator 11, a screw 26, and a stirring rod 27. The output shaft of the screw motor 9 is connected to the screw 26 via a coupling 28. The screw 26 is located inside the hopper 10. The stirring rod 27 is mounted on the outer wall of the screw 26. The upper end of the screw 26 is rotatably connected to the top of the hopper 10 via a bearing 30. A nut 31 is installed below the bearing 30 to lock the axial position. A sealing ring 32 is provided at the upper end of the screw 26 to achieve sealing. The hopper wall vibrator 11 is installed on the outer wall of the hopper 10. When powder accumulates in the hopper or the feeding is not smooth, the vibration of the hopper wall vibrator 11 solves the problem.

[0019] The metering mechanism uses a screw motor 9 as its power source and a screw 26 for metering. A stirring rod 27 is installed on the outer wall of the screw 26. When the screw 26 rotates, it drives the stirring rod 27 to rotate coaxially, achieving continuous mixing of the powder in the hopper, preventing bridging and arching, and ensuring uniform and stable material flow. The rotational power of the screw motor 9 is directly transmitted to the screw 26, driving it to rotate at a uniform speed. Quantitative metering and precise discharge of the powder are achieved through spiral volumetric conveying.

[0020] like Figure 1 , 2 As shown in Figures 5, 6, and 8, the bag-making mechanism of this embodiment includes a film guiding mechanism, a forming device 7, a sealing mechanism, a film feeding mechanism, and a cutting mechanism.

[0021] The film guiding mechanism is used to install and transport the roll film used for bag making. It provides support on the roll film path through rollers, so that the roll film can be transported smoothly and continuously to the subsequent bag making stage.

[0022] The forming device 7 is used to fold the flattened roll film into a cylindrical structure, laying the foundation for the initial shaping of the bag.

[0023] The packaging mechanism is used to heat-seal a cylindrical roll of film into a top-opening packaging bag before filling it with powder, and then seal the top opening of the packaging bag after filling it with powder.

[0024] The cutting mechanism is used to cut and separate the packaging bags.

[0025] The film feeding mechanism is used to drive the roll film to move within the bag making mechanism at a set speed and path by pulling rollers, ensuring that the roll film passes smoothly through each process and that the film feeding speed and tension are stable, so as to ensure the accuracy and quality of bag making.

[0026] like Figure 1 , 2 As shown in Figures 5 and 6, the film guiding mechanism of this embodiment includes a film mounting frame 16, a drive roller 17, a pressing roller 18, a redirecting roller 19, and a buffer shaft 20.

[0027] The film mounting frame 16 is mainly composed of a rotating shaft 161 and a chuck 162. The rotating shaft 161 is used to mount the film, and the chuck 162 is used to limit the axial movement of the film. The two ends of the rotating shaft 161 can be flexibly placed in the grooves of the frame 4, so that the film can be quickly installed and removed when changing the film.

[0028] The drive roller 17 is used to feed the film roll. A motor 8 is mounted on the drive roller 17 to rotate the roller and feed the film roll. During feeding, the film roll comes off the film roll mounting frame 16, passes through the driven roller 171, and then onto the drive roller 17. The drive roller 17 is in close contact with the pressure roller 18, which is used to adhere the film roll to the drive roller 17. The pressure roller 18 is covered with a rubber sleeve to increase the friction between it and the film roll. To adjust the clamping force, screw clamping adjustment devices 181 are connected to both ends of the pressure roller 18. By rotating the screw, the position of the roller is adjusted, thereby changing the degree of film clamping.

[0029] The redirecting roller 19 is used to change the conveying direction of the film roll. Its installation position and angle need to be adjusted according to the conveying path of the film roll. The surface of the redirecting roller 19 is textured to increase the friction with the film roll and prevent the film material from slipping during the redirection process. The main body of the roller is cylindrical, and rolling bearings can be installed at both ends of the roller to allow the roller to rotate flexibly. The bearing seats are fixed to the bracket of the film guiding mechanism with bolts.

[0030] The buffer shaft 20 is movably mounted within the elongated groove of the film guiding mechanism support, located between the pressure roller 18 and the redirecting roller 19. The buffer shaft 20 is a solid steel shaft used to buffer a section of film roll to coordinate the film feed rhythm. When the film feeding mechanism pulls down the film roll, the drive roller 17 is stopped. If there is no buffered film roll at this time, direct pulling would cause plastic deformation of the film roll. Therefore, the buffer shaft 20 stores a section of film in advance. When the film feeding mechanism pulls, the buffer shaft 20 is pulled upwards along the elongated groove due to the pulling action, releasing the film roll. When the drive roller 17 moves, the buffer shaft 20 returns to its original position as the film roll is replenished.

[0031] like Figure 1 , 2 As shown in Figures 6 and 6, the sealing mechanism of this embodiment includes a sealing cylinder 6, a mounting plate 61, a guide rod 14, a guide plate 21, a longitudinal sealing device 12, and a transverse sealing device 22.

[0032] Mounting plate 61 is fixed on frame 4, sealing cylinder 6 is fixed on mounting plate 61, guide rod 14 is fixed on mounting plate 61, guide plate 21 is connected to piston rod of sealing cylinder 6, and sealing cylinder 6 drives mounting plate 21 to move laterally along guide plate 21.

[0033] The longitudinal sealing device 12 is used to heat seal the pre-formed cylindrical film longitudinally before filling it with powder, so that the film becomes a packaging bag with openings at the top and bottom.

[0034] The horizontal sealing device 22 is used to horizontally seal the bottom of the packaging bag before filling the powder. After the powder is filled, the packaging bag is pulled down and then horizontally sealed at the top of the packaging bag to complete the sealing operation of the packaging bag.

[0035] like Figure 1 , 2 As shown in Figure 6, both the longitudinal sealing device 12 and the transverse sealing device 22 in this embodiment adopt pulse sealing devices. After the piston rod of the sealing cylinder 6 extends, it causes the two guide plates 21 to move towards each other. Then, the longitudinal sealing devices 12 on both sides and the transverse sealing devices 22 on both sides press the roll film together. The high temperature on the pressing roller melts the plastic roll film, and then the pressing force melts it together to complete the seal.

[0036] like Figure 1 , 2 As shown in Figure 7, the film feeding mechanism of this embodiment includes friction wheels 5, a synchronous belt pair 33, a bearing seat 34, a first gear 351, a second gear 352, and a film feeding motor 36. The film feeding motor 36 drives the synchronous belt 33 to drive the first gear 351 to rotate. The first gear 351 meshes with the second gear 352. Both the first gear 351 and the second gear 352 are provided with friction wheels 5. The meshing and rotation of the first gear 351 and the second gear 352 can drive the two friction wheels 5 to rotate in opposite directions at the same speed. The two friction wheels 5 then drive the film roll to move downward, realizing the feeding of the film roll. The feeding amount is the length of the packaging bag.

[0037] In summary, the film guiding mechanism is located at the top of the packaging machine, and the forming device 7 is immediately following the film guiding mechanism, folding the traveling roll of film into a cylindrical shape. The longitudinal sealing device 12 is located after the forming device 7, and longitudinally seals the formed cylindrical film.

[0038] The horizontal sealing device 22 is located after the vertical sealing device 12, and it performs a horizontal sealing on the bag. The film feeding mechanism is located at the bottom and pulls the roll of film.

[0039] According to the direction of movement of the film roll in the bag making mechanism, the sequence of film roll movement is as follows: film guiding mechanism - forming device 7 - longitudinal sealing device 12 - transverse sealing device 22 - film feeding mechanism.

[0040] like Figure 1 , 2As shown in Figure 8, the cutting mechanism in this embodiment uses a hot-cutting method. The cutting mechanism includes a cutting cylinder 23, a cutting blade support 24, a heating blade 13, and a connecting plate 131. The cutting blade support 24 is fixed on the frame 4, the cutting cylinder 23 is fixed on the cutting blade support 24, the connecting plate 131 is connected to the piston rod of the cutting cylinder 23, and the heating blade 13 is fixed on the connecting plate 131. The cutting cylinder 23 drives the connecting plate 131 to move, and the connecting plate 131 is guided by a guide rod to ensure that the cutting mechanism maintains a linear running state. When the piston rod of the cutting cylinder 23 extends outward, it will cause the two heating blades 13 to move towards each other. The heating blades 13 can cut the plastic roll film and complete the separation operation of the packaging bag.

[0041] The working principle of the powder packaging machine in this embodiment is as follows: The powder material stored in the hopper flows into the silo 10 under its own gravity. The screw motor 9 drives the stirring rod 27 to rotate through the transmission shaft, continuously stirring and loosening the powder in the silo to ensure that the powder remains loose and uniform. The silo wall vibrator 11 installed on the outer wall of the hopper works continuously to prevent powder accumulation and uneven feeding. After the material is stirred, the screw 26 rotates at a uniform speed under the drive of the screw motor 9, quantitatively pushing the powder material along the spiral groove. Since the speed of the screw 26 is strictly proportional to the material conveying volume, the conveying volume can be accurately controlled by precisely adjusting the speed of the screw 26 through the control system. At the same time, the bag making mechanism operates synchronously. The roll film is smoothly conveyed by the film guiding mechanism, folded into a cylindrical shape by the forming device 7, and then sealed on three sides by the longitudinal sealing device 12 and the transverse sealing device 22 to form a packaging bag to be filled. When the quantitatively pushed material enters the packaging bag, the film feeding mechanism drives the friction wheel 5 to pull the roll film feed at a set speed, so that the packaging bag is accurately positioned to the next process. After the material is filled, the horizontal sealing device 22 and the vertical sealing device 12 operate again to seal the bag opening. At this time, the cutting mechanism melts the film and reseals the cut, finally completing the separation of the finished packaging bag. Finally, the packaging bag falls from the drop plate 25, realizing the fully automated operation from material metering, bag making, filling, sealing to cutting.

[0042] The control system uses a PLC controller. Throughout the process, the PLC control system monitors the operating status of each mechanism in real time and ensures that the packaging process is efficient, stable and accurate by adjusting parameters such as motor speed, cylinder action sequence and sealing temperature.

[0043] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A powder packaging machine, characterized in that: It includes a metering mechanism, a bag-making mechanism, and a control system; The metering mechanism is used for quantitative metering and discharging of powder; The bag-making mechanism is used to make packaging bags from roll film and to seal the packaging bags filled with powder; The control system is used to control the metering mechanism and the bag-making mechanism to perform the task of packaging powder.

2. The powder packaging machine according to claim 1, characterized in that: The metering mechanism includes a screw motor, a hopper, a hopper wall vibrator, a screw, and a stirring rod. The output shaft of the screw motor is connected to the screw via a coupling. The screw is located inside the hopper. The stirring rod is mounted on the outer wall of the screw. The upper end of the screw is rotatably connected to the top of the hopper via a bearing. The hopper wall vibrator is mounted on the outer wall of the hopper.

3. The powder packaging machine according to claim 1, characterized in that: The bag-making mechanism includes a film guiding mechanism, a forming device, a sealing mechanism, a film feeding mechanism, and a cutting mechanism; The film guiding mechanism is used to install and convey the roll film used for bag making; The forming device is used to fold a flattened roll of film into a cylindrical structure; The packaging mechanism is used to heat-seal a cylindrical roll of film into a packaging bag with an open top before filling it with powder, and then seal the top opening of the packaging bag after filling it with powder. The cutting mechanism is used to cut and separate the packaging bag; The film feeding mechanism is used to drive the film roll to move within the bag making mechanism at a set speed and along a set path.

4. The powder packaging machine according to claim 3, characterized in that: The film guiding mechanism includes a film mounting frame, a drive roller, a pressing roller, a redirecting roller, and a buffer shaft; The film mounting frame mainly consists of a rotating shaft and a chuck. The rotating shaft is used to mount the film, and both ends of the rotating shaft are placed in the grooves of the frame. The drive roller is used to feed the roll film, and the pressing roller is used to adhere the roll film to the drive roller. Both ends of the pressing roller are connected to screw pressing adjustment devices. The redirecting roller is used to change the conveying direction of the film roll; The buffer shaft is movably installed in the long groove of the film guiding mechanism support, located between the pressing roller and the redirecting roller.

5. The powder packaging machine according to claim 3, characterized in that: The sealing mechanism includes a sealing cylinder, a mounting plate, a guide rod, a guide plate, a longitudinal sealing device, and a transverse sealing device; The sealing cylinder is fixed on the mounting plate, the guide rod is fixed on the mounting plate, the guide plate is connected to the piston rod of the sealing cylinder, and the sealing cylinder drives the guide plate to move laterally along the guide rod. The longitudinal sealing device is used to heat seal the tubular film longitudinally before filling it with powder, so that the film becomes a packaging bag with openings at the top and bottom. The horizontal sealing device is used to horizontally seal the bottom of the packaging bag before filling with powder and to horizontally seal the top of the packaging bag after filling with powder.

6. The powder packaging machine according to claim 5, characterized in that: Both the longitudinal sealing device and the transverse sealing device adopt pulse-type sealing devices.

7. The powder packaging machine according to claim 3, characterized in that: The film-moving mechanism includes a friction wheel, a synchronous belt pair, a bearing housing, a first gear, a second gear, and a film-moving motor. The film-moving motor drives the synchronous belt transmission, and the synchronous belt drives the first gear to rotate. The first gear meshes with the second gear, and both the first gear and the second gear are equipped with friction wheels.

8. The powder packaging machine according to claim 3, characterized in that: The cutting mechanism includes a cutting cylinder, a cutting blade support, a heating blade, and a connecting plate. The cutting blade support is fixed on the frame, the cutting cylinder is fixed on the cutting blade support, the connecting plate is connected to the piston rod of the cutting cylinder, and the heating blade is fixed on the connecting plate.

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