Vertical packaging machine cup wheel metering device

Abstract

The utility model discloses a vertical packaging machine measuring cup carousel metering device belongs to packaging machine technical field, including measuring seat, material bucket, measuring carousel, discharge cylinder, measuring carousel is set up on the measuring seat through the rotation of measuring pivot, and the periphery of measuring carousel is provided with a plurality of measuring cups, and the measuring seat is equipped with the servo drive mechanism for driving the rotation of measuring carousel, and the servo drive mechanism drives the circumferential rotation of measuring carousel around the center axis of measuring pivot, and the material in material bucket falls into the measuring cup, when the measuring cup falls into the material of enough and rotates to the top of discharge cylinder, and the material falls into the discharge cylinder and realizes the metering discharge. The servo drive mechanism can accurately adjust the rotation rate of measuring carousel according to the actual running speed of packaging machine and the material characteristics, effectively solve the problem that the rotation speed of traditional device is fixed and causes the decline of measuring accuracy or the problem that cannot match the high -speed production rhythm when high -speed packaging, and the adaptability of device to high -speed packaging is improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically to a measuring cup turntable metering device for a vertical packaging machine. Background Technology

[0002] Currently, with the trend of automation, many industries have adopted automatic packaging machines for production and packaging. The measuring cup rotary feeding mechanism is a metering device for packaging most granular and powdery materials. It is designed to ensure that products with uniform specifications are obtained before the packaging mechanism of the packaging machine, and to perform quantitative feeding.

[0003] Chinese utility model patent publication number "CN222496703U" discloses a quantitative feeding mechanism for a single-row three-side seal granule packaging machine, including a mounting plate, a support frame fixedly installed at the top edge of the mounting plate, an electric metering hopper fixedly installed on one side of the support frame, a receiving pipe connected to the top of the mounting plate, and a turntable assembly mounted on the mounting plate for rotating and receiving quantitative raw materials discharged from the bottom outlet of the electric metering hopper. The mounting plate is also equipped with a drive motor for driving the turntable assembly to rotate.

[0004] However, the speed of the drive motor of the quantitative feeding mechanism in the aforementioned packaging machine is not adjustable, and the rotation speed of the turntable cannot be adjusted according to production needs, thus failing to meet the metering feeding requirements of high-speed packaging machines. Furthermore, the turntable assembly cannot adjust the metering capacity, meaning the metering capacity or mass is only suitable for packaging of a single mass, and cannot meet the needs of various metering packaging methods.

[0005] Therefore, it is necessary to improve upon the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a measuring cup turntable measuring device for vertical packaging machines with adjustable measuring speed to adapt to different packaging needs, so as to solve the above-mentioned problems existing in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a vertical packaging machine measuring cup turntable metering device, including a metering base, a material bucket, a metering turntable, and a discharge cylinder. The metering turntable is rotatably mounted on the metering base via a metering shaft. The feature is that: a plurality of measuring cups are arranged circumferentially on the metering turntable, and the metering base is provided with a servo drive mechanism for driving the metering turntable to rotate. The servo drive mechanism drives the metering turntable to rotate circumferentially around the central axis of the metering shaft, causing the material in the material bucket to fall into the measuring cups. When a sufficient amount of material falls into the measuring cups and the cups rotate to the top of the discharge cylinder, the material falls into the discharge cylinder to achieve metering and discharge.

[0008] By adopting the above technical solution, the servo drive mechanism can accurately and steplessly adjust the rotation speed of the metering turntable according to the actual operating speed of the packaging machine and the characteristics of the material. This ensures that under high-speed packaging conditions, the metering cup has enough time to complete stable and sufficient material filling under the material barrel and pour the material into the discharge cylinder at a precise position. This effectively solves the problem that the fixed rotation speed of traditional devices leads to a decrease in metering accuracy or inability to match the high-speed production cycle during high-speed packaging, and significantly improves the adaptability of the device to high-speed packaging.

[0009] The above-mentioned measuring cup turntable of the vertical packaging machine can be further configured as follows: the servo drive mechanism includes a servo motor mounted on the measuring base, the output end of the servo motor is provided with a first gear shaft, the end of the measuring shaft is provided with a second gear shaft, the outer rings of the first gear shaft and the second gear shaft are linked by a transmission toothed belt, the operation of the servo motor causes the first gear shaft to rotate, and the first gear shaft drives the second gear shaft to rotate through the transmission toothed belt, causing the measuring shaft to rotate around the central axis.

[0010] By adopting the above technical solution, the transmission toothed belt connects the first toothed shaft and the second toothed shaft to form a rigid synchronous transmission chain. This not only ensures high transmission efficiency and smooth operation, but also effectively eliminates the backlash error that may exist in traditional gear transmission. This ensures that the speed and angle commands output by the servo motor can be transmitted to the metering shaft accurately and without lag. The operation of the servo motor causes the first toothed shaft to rotate, and the first toothed shaft drives the second toothed shaft to rotate through the transmission toothed belt, causing the metering shaft to rotate around the central axis. This makes the rotation speed and phase position of the metering turntable completely controlled by the precise commands of the servo motor, thus providing a reliable mechanical basis for the aforementioned stepless speed regulation and precise positioning.

[0011] The measuring cup turntable of the above-mentioned vertical packaging machine can be further configured such that: a third toothed shaft is rotatably arranged inside the measuring seat, the third toothed shaft is located between the first toothed shaft and the second toothed shaft, the third toothed shaft meshes with the transmission toothed belt, and the third toothed shaft can tension the transmission toothed belt.

[0012] By adopting the above technical solution, a third toothed shaft is added inside the metering seat, located between the first and second toothed shafts, and meshes with the transmission toothed belt. This effectively realizes the tension adjustment function of the transmission toothed belt, ensuring that the transmission toothed belt maintains appropriate tension during operation. This effectively prevents the occurrence of toothed belt slack, slippage, or tooth skipping, and also ensures the stability and synchronization accuracy of the servo motor power transmission. It eliminates the deviation in the rotation angle of the metering turntable caused by toothed belt slack, and significantly reduces transmission noise and vibration. This further improves the operational reliability and long-term metering accuracy stability of the entire metering device under high-speed, high-frequency start-stop conditions. The above-mentioned measuring cup turntable of the vertical packaging machine can be further configured as follows: the measuring turntable includes an upper turntable and a lower turntable. The upper turntable is linked with the measuring shaft, and the lower turntable is slidably connected with the measuring shaft. An adjusting sleeve is fitted on the measuring shaft and is threadedly connected to the measuring shaft. The lower turntable is linked with the adjusting sleeve. The upper turntable is equipped with a measuring cylinder. The measuring cup is linked with the lower turntable and its other end is slidably connected with the measuring cylinder. The rotation of the adjusting sleeve drives the lower turntable to move axially along the measuring shaft, causing the measuring cup to move relative to the measuring cylinder.

[0013] By adopting the above technical solution, the metering turntable features a separate upper and lower turntable design, with the axial displacement of the lower turntable controlled by a threaded adjusting sleeve. This innovative structure achieves continuous, stepless adjustment of the metering cup volume. The rotation of the adjusting sleeve drives the lower turntable to move axially along the metering shaft, causing the metering cup to shift relative to the metering cylinder. No machine downtime or component replacement is required; simply rotating the adjusting sleeve allows for precise and convenient adjustment of the effective volume of the metering cup according to material characteristics or packaging specifications, significantly improving the versatility and flexibility of the device. Simultaneously, the simple structure and reliable locking ensure a stable relative position between the metering cup and the metering cylinder after adjustment, guaranteeing the repeatability of metering accuracy.

[0014] The above-mentioned vertical packaging machine measuring cup turntable metering device can be further configured as follows: an elastic reset element is provided between the measuring cylinder and the measuring cup, and the elastic reset element is sleeved on the outer periphery of the measuring cylinder and the measuring cup.

[0015] By adopting the above technical solution, an elastic reset component is set between the measuring cylinder and the measuring cup, which is sleeved on their outer periphery to continuously provide axial preload. This ensures that the sliding mating surfaces of the measuring cup and the measuring cylinder are tightly fitted. On the one hand, this effectively eliminates the axial gap between the measuring cup and the measuring cylinder caused by manufacturing tolerances or long-term wear, preventing material leakage from the gap during the measuring process and ensuring measuring accuracy. On the other hand, it ensures that when the turntable moves axially under the drive of the adjusting sleeve to change the measuring volume, the measuring cup can move smoothly and without jamming, and maintain a stable relative position with the measuring cylinder after adjustment, further improving the reliability of volume adjustment and the stability of measuring accuracy.

[0016] The above-mentioned vertical packaging machine measuring cup turntable metering device can be further configured as follows: the material barrel discharge end is also equipped with a scraper, which can scrape the material falling on the measuring turntable into the measuring cup, and a vibrating discharge channel is provided behind the scraper.

[0017] By adopting the above technical solution: when the measuring cup rotates with the turntable and passes under the material bucket to fill the material, the scraper can promptly and effectively scrape the excess material that has spilled or accumulated on the edge of the measuring cup inlet and the nearby turntable surface into the measuring cup, ensuring the integrity and consistency of the filling material in each measuring cup. The scraper can also scrape the material falling on the measuring turntable into the measuring cup. At the same time, a vibrating discharge channel is set behind the scraper. When the material falls, the vibrating discharge channel can vibrate and screen the material, shaking out larger material particles from the side discharge channel, preventing excessively large materials from falling into the measuring cup and causing uneven particle size distribution in the packaging.

[0018] The beneficial effects of this invention are as follows: the rotation speed of the metering turntable can be adjusted by regulating the rotation speed of the servo motor, thereby adjusting the metering rate of the metering device. This achieves stepless and precise adjustment of the metering turntable rotation speed, ensuring that the metering cup has sufficient filling time below the material container under high-speed conditions, completely solving the problem of high-speed accuracy degradation caused by the fixed rotation speed of traditional devices. Furthermore, the metering turntable consists of an upper turntable and a lower turntable, and the metering cup works in conjunction with the metering cylinder to achieve stepless adjustment of the metering cup volume. This allows for quick adaptation to different material densities and packaging specifications. The elastic pre-tightening force simultaneously eliminates manufacturing tolerances and wear gaps, preventing material leakage and ensuring positional stability after adjustment. This significantly improves the equipment's versatility and long-term accuracy and reliability. Additionally, the scraper plate can recover loose material from the turntable surface, ensuring the integrity of the metering cup filling. The vibrating discharge channel applies controllable vibration to materials with poor flowability or easy stickiness, promoting filling density and assisting in the complete removal of residues from the cup wall. Combined with the pre-screening function, it blocks excessive particles, ensuring metering consistency.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the measuring cup turntable metering device of the vertical packaging machine of this utility model; Figure 2 This is a structural schematic diagram of the measuring cup turntable metering device of the vertical packaging machine according to another perspective. Figure 3 For the present utility model Figure 1 Schematic diagram of part A in the middle; Label annotations: 1. Metering seat, 11. Metering shaft, 12. Adjusting sleeve, 2. Material bucket, 3. Metering turntable, 31. Metering cup, 32. Upper turntable, 33. Lower turntable, 34. Metering cylinder, 35. Elastic reset cylinder, 4. Discharge cylinder, 5. Servo drive mechanism, 51. Servo motor, 52. First gear shaft, 53. Transmission belt, 54. Third gear shaft, 6. Scraper, 7. Vibrating discharge channel. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. 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.

[0022] Vertical packaging machine measuring cup turntable metering device, such as Figures 1 to 3 As shown, the device includes a metering base 1, a material bin 2, a metering turntable 3, and a discharge cylinder 4. The metering turntable 3 is rotatably mounted on the metering base 1 via a metering shaft 11. The device is characterized by having several metering cups 31 arranged circumferentially on the metering turntable 3. The metering base 1 is equipped with a servo drive mechanism 5 for driving the metering turntable 3 to rotate. The servo drive mechanism 5 drives the metering turntable 3 to rotate circumferentially around the central axis of the metering shaft 11, causing the material in the material bin 2 to fall into the metering cups 31. When a sufficient amount of material falls into the metering cups 31 and they rotate to the top of the discharge cylinder 4, the material falls into the discharge cylinder 4 to achieve metering and discharge. The servo drive mechanism 5 can precisely and steplessly adjust the rotation speed of the metering turntable 3 according to the actual operating speed of the packaging machine and the characteristics of the material. This ensures that under high-speed packaging conditions, the metering cup 31 has enough time to complete stable and sufficient material filling under the material bucket 2 and pour the material into the discharge cylinder 4 at a precise position. This effectively solves the problem that the fixed rotation speed of traditional devices leads to a decrease in metering accuracy or inability to match the high-speed production cycle during high-speed packaging, and significantly improves the adaptability of the device to high-speed packaging.

[0023] The servo drive mechanism 5 includes a servo motor 51 mounted on the measuring base 1. The output end of the servo motor 51 is provided with a first gear shaft 52, and the end of the measuring shaft 11 is provided with a second gear shaft. The outer rings of the first gear shaft 52 and the second gear shaft are linked by a transmission belt 53. When the servo motor 51 operates, it causes the first gear shaft 52 to rotate. The first gear shaft 52 drives the second gear shaft to rotate through the transmission belt 53, causing the measuring shaft 11 to rotate around the central axis. The transmission belt 53 connects the first gear shaft 52 and the second gear shaft, forming a rigid synchronous transmission chain. This not only ensures high transmission efficiency and smooth operation, but also effectively eliminates the backlash error that may exist in traditional gear transmission. This ensures that the speed and angle commands output by the servo motor 51 can be transmitted to the metering shaft 11 accurately and without lag. The operation of the servo motor 51 causes the first gear shaft 52 to rotate, and the first gear shaft 52 drives the second gear shaft to rotate through the transmission belt 53, causing the metering shaft 11 to rotate around the central axis. This makes the rotation speed and phase position of the metering turntable 3 completely controlled by the precise commands of the servo motor 51, thus providing a reliable mechanical basis for the aforementioned stepless speed regulation and precise positioning.

[0024] A third gear shaft 54 ​​is rotatably mounted inside the metering base 1. The third gear shaft 54 ​​is located between the first gear shaft 52 and the second gear shaft, and meshes with the transmission toothed belt 53. The third gear shaft 54 ​​can tension the transmission toothed belt 53. The addition of the third gear shaft 54, located between the first gear shaft 52 and the second gear shaft, and meshing with the transmission toothed belt 53, effectively realizes the tension adjustment function of the transmission toothed belt 53, ensuring that the transmission toothed belt 53 maintains a suitable tension during operation, effectively preventing the occurrence of toothed belt slack, slippage, or tooth skipping, and ensuring the stability and synchronization accuracy of the power transmission of the servo motor 51. It also eliminates the rotation angle deviation of the metering turntable 3 caused by toothed belt slack, and significantly reduces transmission noise and vibration, further improving the operational reliability and long-term metering accuracy stability of the entire metering device under high-speed, high-frequency start-stop conditions.

[0025] The metering turntable 3 includes an upper turntable 32 and a lower turntable 33. The upper turntable 32 is linked to the metering shaft 11, and the lower turntable 33 is slidably connected to the metering shaft 11. An adjusting sleeve 12 is fitted onto the metering shaft 11 and is threadedly connected to the metering shaft 11. The lower turntable 33 is linked to the adjusting sleeve 12. The upper turntable 32 is equipped with a metering cylinder 34. A metering cup 31 is linked to the lower turntable 33, and its other end is slidably connected to the metering cylinder 34. The rotation of the adjusting sleeve 12 drives the lower turntable 33 to move axially along the metering shaft 11, causing the metering cup 31 to move relative to the metering cylinder 34. The metering turntable 3 adopts a separate design for the upper turntable 32 and the lower turntable 33, and the axial displacement of the lower turntable 33 is controlled by the threaded adjusting sleeve 12. This innovative structure enables continuous, stepless adjustment of the volume of the measuring cup 31. The rotation of the adjusting sleeve 12 drives the lower turntable 33 to move axially along the measuring shaft 11, causing the measuring cup 31 to shift relative to the measuring cylinder 34. Without stopping the machine or replacing parts, simply rotating the adjusting sleeve 12 allows for precise and convenient adjustment of the effective volume of the measuring cup 31 according to material characteristics or packaging specifications, significantly improving the versatility and flexibility of the device. Simultaneously, the simple structure and reliable locking ensure a stable relative position between the measuring cup 31 and the measuring cylinder 34 after adjustment, guaranteeing the repeatability of measuring accuracy.

[0026] An elastic reset member 35 is provided between the measuring cylinder 34 and the measuring cup 31, and the elastic reset member 35 is sleeved on the outer periphery of the measuring cylinder 34 and the measuring cup 31. The elastic reset member 35 sleeved on the outer periphery of the measuring cylinder 34 and the measuring cup 31 provides a continuous axial preload, which makes the sliding mating surfaces of the measuring cup 31 and the measuring cylinder 34 fit tightly. On the one hand, it effectively eliminates the axial gap between the measuring cup 31 and the measuring cylinder 34 caused by manufacturing tolerances or long-term wear, preventing material leakage from the gap during the measuring process and ensuring measuring accuracy. On the other hand, it ensures that when the turntable 33 moves axially under the drive of the adjusting sleeve 12 to change the measuring volume, the measuring cup 31 can move smoothly and without jamming, and maintain a stable relative position with the measuring cylinder 34 after adjustment, further improving the reliability of volume adjustment and the stability of measuring accuracy.

[0027] The material bin 2 is also equipped with a scraper 6 at its discharge end. The scraper 6 can scrape the material falling on the metering turntable 3 into the metering cup 31. A vibrating discharge channel 7 is provided behind the scraper 6. When the metering cup 31 passes under the material bin 2 and is filled with material as the turntable rotates, the scraper 6 can promptly and effectively scrape the excess material that has spilled or accumulated on the inlet edge of the metering cup 31 and the nearby turntable surface into the metering cup 31, ensuring the integrity and consistency of the filling material in each metering cup 31. At the same time, the scraper 6 can scrape the material falling on the metering turntable 3 into the metering cup 31. Simultaneously, a vibrating discharge channel 7 is provided behind the scraper 6. When the material falls, the vibrating discharge channel 7 can vibrate and screen the material, shaking out larger material particles from the side discharge channel, preventing excessively large materials from falling into the metering cup 31 and causing uneven particle size distribution in the packaging.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A measuring cup turntable metering device for a vertical packaging machine, comprising a metering base, a material bucket, a metering turntable, and a discharge cylinder, wherein the metering turntable is rotatably mounted on the metering base via a metering shaft, characterized in that: The metering turntable is circumferentially arranged with several metering cups. The metering base is equipped with a servo drive mechanism for driving the metering turntable to rotate. The servo drive mechanism drives the metering turntable to rotate circumferentially around the central axis of the metering shaft, causing the material in the material bucket to fall into the metering cup. When enough material falls into the metering cup and it rotates to the top of the discharge cylinder, the material falls into the discharge cylinder to achieve metering and discharge.

2. The measuring cup turntable metering device for a vertical packaging machine according to claim 1, characterized in that: The servo drive mechanism includes a servo motor mounted on the measuring base. The output end of the servo motor is provided with a first gear shaft, and the end of the measuring shaft is provided with a second gear shaft. The outer rings of the first gear shaft and the second gear shaft are linked by a transmission toothed belt. The operation of the servo motor causes the first gear shaft to rotate, and the first gear shaft drives the second gear shaft to rotate through the transmission toothed belt, causing the measuring shaft to rotate around the central axis.

3. The measuring cup turntable metering device for a vertical packaging machine according to claim 2, characterized in that: A third toothed shaft is rotatably disposed inside the metering seat. The third toothed shaft is located between the first toothed shaft and the second toothed shaft. The third toothed shaft meshes with the transmission toothed belt and can tension the transmission toothed belt.

4. The measuring cup turntable metering device for a vertical packaging machine according to any one of claims 1 to 3, characterized in that: The metering turntable includes an upper turntable and a lower turntable. The upper turntable is linked to the metering shaft, and the lower turntable is slidably engaged with the metering shaft. An adjusting sleeve is fitted on the metering shaft and is threadedly connected to the metering shaft. The lower turntable is linked to the adjusting sleeve. The upper turntable is equipped with a metering cylinder. The metering cup is linked to the lower turntable and its other end is slidably engaged with the metering cylinder. The rotation of the adjusting sleeve drives the lower turntable to move axially along the metering shaft, causing the metering cup to shift relative to the metering cylinder.

5. The measuring cup turntable metering device for a vertical packaging machine according to claim 4, characterized in that: An elastic reset element is provided between the measuring cylinder and the measuring cup, and the elastic reset element is sleeved on the outer periphery of the measuring cylinder and the measuring cup.

6. The measuring cup turntable metering device for a vertical packaging machine according to claim 5, characterized in that: The material barrel is also equipped with a scraper at the discharge end. The scraper can scrape the material falling on the metering turntable into the metering cup. A vibrating discharge channel is provided behind the scraper.

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