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CN-224211385-U - Transmission gear set, transverse sealing device and packaging machine

CN224211385UCN 224211385 UCN224211385 UCN 224211385UCN-224211385-U

Abstract

The utility model relates to a transmission gear set, a transverse sealing device and a packaging machine, wherein the transmission gear set comprises a first gear and a second gear, a first intermediate gear and a second intermediate gear are arranged between the first gear and the second gear, the first intermediate gear, the second intermediate gear and the second gear are sequentially meshed, the first gear and the second gear are respectively connected with a first driving shaft and a second driving shaft, the first intermediate gear and the second intermediate gear are respectively connected with a first gear shaft and a second gear shaft, an included angle theta is formed between an axis connecting line of the first intermediate gear and the second intermediate gear and an axis connecting line of the first gear and the second gear, and the included angle theta is adjusted to eliminate gear backlash. The utility model has the advantages of simple integral structure, convenient and quick operation, accurate adjustment, gear set transmission precision and transmission performance guarantee, higher package packaging, great reduction of the occupation space of the gear set, and further reduction of the occupation space of the transverse sealing device.

Inventors

  • LI FAGANG
  • LI ZHIHONG
  • WANG LIHAO

Assignees

  • 青岛科信自动机械有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (10)

  1. 1. The transmission gear set is characterized by comprising a first gear and a second gear, wherein a first intermediate gear and a second intermediate gear are arranged between the first gear and the second gear, the first intermediate gear, the second intermediate gear and the second gear are sequentially meshed, the first gear and the second gear are respectively connected with a first driving shaft and a second driving shaft, the first intermediate gear and the second intermediate gear are respectively connected with a first gear shaft and a second gear shaft, an included angle theta is formed between an axis connecting line of the first intermediate gear and the second intermediate gear and an axis connecting line of the first gear and the second gear, and the included angle theta is adjusted to eliminate gear backlash.
  2. 2. The transmission gearset according to claim 1, further comprising a drive gear, wherein the first gear meshes with the drive gear, and wherein the drive gear is connected to an output shaft of the drive motor.
  3. 3. The transmission gear set of claim 1, wherein the diameters and the numbers of teeth of the first gear, the first intermediate gear, the second intermediate gear and the second gear are the same, and the meshing point of the first intermediate gear and the second intermediate gear coincides with the central point of the axle center connecting line of the first gear and the second gear.
  4. 4. The drive gear set of any one of claims 1-3, wherein the first gear shaft and the second gear shaft connected to the first and second intermediate gears are mounted to the frame by a mounting assembly configured to adjust an angle θ between an axis connection of the first and second intermediate gears and an axis connection of the first and second gears.
  5. 5. The transmission gear set of claim 4, wherein the mounting assembly comprises a mounting plate, a central rotating shaft extends out of the center of the mounting plate and is rotatably connected with the frame, two shaft holes are formed in the mounting plate, the first gear shaft and the second gear shaft are correspondingly and fixedly connected with the two shaft holes, a plurality of arc-shaped mounting holes are formed in the mounting plate and distributed on a circumference taking the axis of the central rotating shaft as a circle center, and the arc-shaped mounting holes are fixedly connected with the frame through fasteners.
  6. 6. The transmission gear set of claim 5, wherein the mounting plate comprises a first mounting plate and a second mounting plate, the first mounting plate is rectangular, the second mounting plate is diamond-shaped, two arc-shaped mounting holes and a central rotating shaft are formed in the first mounting plate, the shaft holes are respectively formed in two ends of the length of the second mounting plate, and two ends of the width of the second mounting plate are fixedly connected with the first mounting plate through fasteners.
  7. 7. The transmission gear set according to claim 5, wherein the first gear shaft and the second gear shaft are in clearance fit with the corresponding shaft holes, and an adjusting mechanism for adjusting the eccentric distance between the shaft center of the gear shaft and the shaft center of the shaft holes is arranged on the mounting plate.
  8. 8. The transmission gear set of claim 7, wherein the adjusting mechanism comprises two adjusting screw holes arranged on the side part of the mounting plate, the two adjusting screw holes are respectively arranged corresponding to the two shaft holes, an adjusting bolt is arranged in the adjusting screw holes, the adjusting bolt is inserted into the adjusting screw holes and then is tightly abutted against the first gear shaft or the second gear shaft from the side part, and the adjusting bolt is screwed to push the first gear shaft and the second gear shaft from the side direction until gear backlash is eliminated.
  9. 9. A transverse sealing device comprises an upper sealing device and a lower sealing device and is characterized in that the transmission gear sets as claimed in any one of claims 1-8 are respectively arranged on two sides of the upper sealing device and the lower sealing device, the transmission gear sets are connected with a driving motor, and the lower sealing device and the upper sealing device are respectively connected with a first driving shaft and a second driving shaft through driving mechanisms.
  10. 10. A packaging machine comprising a transverse sealing device as claimed in claim 9.

Description

Transmission gear set, transverse sealing device and packaging machine Technical Field The utility model relates to the technical field of packaging equipment, in particular to a transmission gear set, a transverse sealing device and a packaging machine. Background The pillow type packing machine is an automatic packing device, which wraps the products into pillow shape by film, and is suitable for high-speed packing of daily chemical products, food, medicines and other regular articles. The core functions comprise feeding and film wrapping, and heat sealing and cutting through a sealing device. The sealing device is a machine for sealing the packaging film filled with the packaged material, and after the sealing device is used for sealing, the product can be stored in a sealing way, the quality of the product is kept, the packaging air leakage is avoided, and the sealing device is widely applied to the fields of daily chemical product packaging, food, medicine packaging and the like. At present, the sealing device of the pillow type packaging machine mainly has two forms, namely a longitudinal sealing device and a transverse sealing device, and the transverse sealing device in the prior art generally adopts a pair of upper and lower sealing devices to heat and cut while sealing. The patent number 201910961128.7 discloses a sealing device, which comprises an upper sealing device and a lower sealing device, wherein the upper sealing device is fixed with an upper translation arm, the lower sealing device is fixed with a lower translation arm, the upper translation arm and the lower translation arm both comprise parallelogram double-crank mechanisms consisting of two cranks and parallel connecting rods, a driving device comprises four driving shafts connected with the four cranks and two transmission gears meshed with each other, one driving shaft is connected with a driving motor as a driving shaft, the two driving shafts of the upper translation arm are linked through a synchronous belt, and the two driving shafts of the lower translation arm are also linked through a synchronous belt, and the driving device drives the upper sealing device and the lower sealing device to synchronously act. In the sealing device, the power transmission is realized by the meshing of two gears, but the transmission mechanism has the following defects that 1, an anti-backlash gear is required to be arranged independently. 2. For packages with higher packages, large diameter gears are required to meet the drive requirements, but large gears take up more space. Disclosure of utility model The utility model mainly solves the technical problem of providing the transmission gear set which occupies smaller space, can ensure the transmission effect, can effectively eliminate the gear backlash and meets the transmission requirement, and simultaneously provides the transverse sealing device adopting the transmission gear set and the packaging machine adopting the transverse sealing device. In order to solve the technical problems, the basic concept of the first technical scheme adopted by the utility model is as follows: The utility model provides a drive gear group, includes first gear and second gear be provided with first gear and second gear between first gear and the second gear, first gear, second gear and second gear mesh in proper order, first gear and second gear are connected with first drive shaft and second drive shaft respectively, first gear and second gear are connected with first gear shaft and second gear shaft respectively, the axle center line of first gear and second gear with have contained angle theta between the axle center line of first gear and second gear, adjust contained angle theta angle elimination gear backlash. Further, the motor driving device further comprises a driving gear, the first gear is meshed with the driving gear, and the driving gear is connected with an output shaft of the driving motor. Further, the diameters and the number of teeth of the first gear, the first intermediate gear, the second intermediate gear and the second gear are the same, and the meshing point of the first intermediate gear and the second intermediate gear coincides with the central point of the axis connecting line of the first gear and the second gear. Further, a first gear shaft and a second gear shaft connected with the first intermediate gear and the second intermediate gear are mounted on the frame through a mounting assembly, and the mounting assembly is configured to adjust an included angle theta between an axis connecting line of the first intermediate gear and the second intermediate gear and an axis connecting line of the first gear and the second gear. Further, the installation component includes the mounting panel the center of mounting panel stretches out there is the center pivot, center pivot and frame rotate to be connected the mounting panel is provided with two shaft holes, first gear shaft and second g