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CN-224225393-U - Tightening packer

CN224225393UCN 224225393 UCN224225393 UCN 224225393UCN-224225393-U

Abstract

The utility model discloses a tightening packer, which comprises a driving mechanism, a speed reducing mechanism and a tightening mechanism which are sequentially connected, wherein the speed reducing mechanism comprises a worm and a worm wheel, the tightening mechanism comprises a tightening frame and a tightening wheel which are movably arranged relative to a tightening base, the worm wheel is provided with a worm wheel shaft which is rotatably arranged on the tightening frame, the tightening wheel is arranged on the worm wheel shaft in a linkage manner, a one-way bearing is fixedly arranged between the worm wheel shaft and the tightening frame, the one-way bearing is arranged on the worm wheel shaft and is closer to the tightening wheel, the rotation of the tightening wheel and the worm wheel can be directly locked, the influence of the tooth gap of an intermediate transmission chain is skipped, the rebound can be effectively prevented, the tightening effect and the reliability are improved, the mechanical locking is triggered when the tightening packer is stopped by adopting the technical scheme, the rebound possibility is eliminated, the rebound is reduced, the locking reliability is improved, the structure is simplified, the maintenance is more convenient, the cost is reduced, and the service performance of a product is improved.

Inventors

  • ZHANG XIUXIANG

Assignees

  • 温州汉德派克包装机械有限公司

Dates

Publication Date
20260512
Application Date
20250514

Claims (10)

  1. 1. The tightening packer comprises a driving mechanism (1), a speed reducing mechanism (2) and a tightening mechanism which are sequentially connected, wherein the speed reducing mechanism (2) comprises a worm (21) and a worm wheel (22) which are used for transmitting torque between the driving mechanism (1) and the tightening mechanism, and the tightening mechanism comprises a tightening frame (3) and a tightening wheel (4) which are movably arranged relative to a tightening base (5), and the tightening packer is characterized in that the worm wheel (22) is provided with a worm wheel shaft (23) which is arranged on the tightening frame (3) in an extending and rotating mode, the tightening wheel (4) is arranged on the worm wheel shaft (23) in a linkage mode, the worm wheel (22) and the tightening wheel (4) are coaxially arranged on the tightening frame (3) in a linkage mode through the worm wheel shaft (23), and a one-way bearing (6) used for limiting the worm wheel shaft (23) to do one-way movement is fixedly arranged between the worm wheel shaft (23) and the tightening frame (3).
  2. 2. The tightening packer according to claim 1, characterized in that a bearing box (7) is fixedly arranged in the tightening frame (3), a bearing groove suitable for installing the one-way bearing (6) is formed in the bearing box (7), and a limit boss (24) for limiting the one-way bearing (6) in the bearing groove is arranged on the worm wheel shaft (23).
  3. 3. The tightening packer according to claim 2, characterized in that a through hole for communicating with the bearing groove is formed in the bearing housing (7), one end of the worm wheel shaft (23) penetrates through the one-way bearing (6) and the through hole and then is connected with the tightening wheel (4), and the other end of the worm wheel shaft (23) is rotatably connected with the tightening frame (3) through a positioning bearing (28).
  4. 4. A tightening baler according to claim 3, characterized in that the worm wheel (22) and the tightening wheel (4) are separately arranged at both sides of the bearing housing (7), the bearing housing (7) and the tightening frame (3) are connected to form a first space adapted to accommodate the worm wheel (22), and the worm (21) extends into the first space to engage with the worm wheel (22).
  5. 5. A tightening baler according to claim 4, characterized in that a side cover (31) opposite the bearing housing (7) is mounted on one side of the tightening frame (3), the side cover (31) and the bearing housing (7) forming a second space therebetween adapted to accommodate the tightening wheel (4).
  6. 6. Tightening baler according to any one of claims 2-5, characterized in that the tightening base (5) comprises a base body (51) and a belt releasing base plate (52) connected to one side of the bottom of the base body (51), the belt releasing base plate (52) is provided with a tightening roller (53) located below the tightening wheel (4), and the base body (51) is provided with a supporting claw (9) matched with the belt releasing base plate (52).
  7. 7. The tightening packer according to claim 6, wherein the tightening frame (3) is rotatably connected with the tightening base (5) through a connecting structure, the connecting structure comprises connecting holes (32) respectively and correspondingly arranged on the base body (51) and the tightening frame (3), and a rotating shaft penetrating through the connecting holes (32), one side of the base body (51) is provided with a round shaft portion (55) extending along the axial direction of the connecting holes (32), the connecting holes (32) penetrate through the round shaft portion (55), a torsion spring structure (8) respectively connected with the base body (51) and the tightening frame (3) is sleeved on the round shaft portion (55), and the tightening frame (3) has a movement trend of driving the tightening wheel (4) to deflect towards one side close to the tightening roller (53) under the action of the torsion spring structure (8).
  8. 8. The tightening and baling machine according to claim 6, wherein the tightening base (5) further includes a guide hole (56) provided in the base body (51) through which the worm wheel shaft (23) passes, and a reinforcing bead structure (54) provided at the other side of the base body (51), and a belt loosening handle (57) is installed at the top of the base body (51), and a circular boss provided with a bearing groove of the bearing housing (7) is connected in the guide hole (56).
  9. 9. The tightening baler according to claim 1, characterized in that the speed reducing mechanism (2) comprises a speed reducing housing (25) with one end fixedly connected with the tightening frame (3), a central gear shaft (26) rotatably arranged in the speed reducing housing (25) and at least one group of planetary gear assemblies connecting the central gear shaft (26) and the worm (21), wherein the central gear shaft (26) is connected with the driving mechanism (1), and the speed reducing housing (25) extends for a set length along the axial direction of the central gear shaft (26).
  10. 10. The tightening baler of claim 9, characterized in that the driving mechanism (1) is a driving motor arranged at the other end of the reduction shell (25), and the driving motor is arranged in linkage with the central gear shaft (26) through a coupling (11).

Description

Tightening packer Technical Field The utility model relates to the technical field of packing machines, in particular to a tightening packing machine. Background The strap tightener is special equipment for tightening the strap bound on the packaged body (such as a box body) so as to ensure that the strap is stably bound on the packaged body. The existing packing belt tightening machine mainly comprises a driving device, an output speed reducing mechanism and a tightening mechanism, wherein the output speed reducing mechanism is in linkage with the driving device, the tightening mechanism is in linkage with the output speed reducing mechanism, the output speed reducing mechanism comprises a multistage speed reducing gear, a worm and a worm wheel which are connected, the worm and the worm wheel are matched to transmit motion and power between staggered shafts, the staggered angle of two shafts is 90 degrees, the tightening mechanism comprises a tightening wheel in linkage with the worm wheel, the driving device is connected with the multistage speed reducing gear through a driving rotating shaft, a one-way bearing is arranged on the driving rotating shaft, the worm is provided with the one-way bearing, the one-way bearing is used for realizing one-way driving of the tightening wheel, but the structural design of the existing packing belt tightening machine still has the following problems that the two one-way bearings are at a distance from the tightening wheel, the multistage speed reducing gear is arranged between the one-way bearing and the tightening wheel, gaps exist in gear meshing, the backlash of the multistage gears can be accumulated and overlapped, when the packing belt is recovered, the one-way bearing is in a locking state depending on the tension transmitted by the gears, but the backlash can cause the phenomenon after the tightening wheel to be tightened, the tightening wheel to rebound, and the effect is affected. Disclosure of utility model Therefore, the technical problem to be solved by the utility model is to overcome the problems that the accumulation and increase of the tooth gaps of the multistage gears of the packing belt tightener in the prior art can cause rebound phenomenon after tightening of the tightening wheel, so that the packing belt is loosened and the bundling effect is affected, thereby providing the tightening packer with reduced rebound, improved locking reliability, simplified structure, more convenient maintenance and reduced cost. In order to solve the technical problems, the utility model provides a tightening packer which comprises a driving mechanism, a speed reducing mechanism and a tightening mechanism which are sequentially connected, wherein the speed reducing mechanism comprises a worm and a worm wheel which are used for transmitting torque between the driving mechanism and the tightening mechanism, the tightening mechanism comprises a tightening frame which is movably arranged relative to a tightening base and a tightening wheel, the worm wheel is provided with a worm wheel shaft which is arranged on the tightening frame in an extending and rotating way, the tightening wheel is arranged on the worm wheel shaft in a linkage way, the worm wheel and the tightening wheel are arranged on the tightening frame in a coaxial linkage way through the worm wheel shaft, and a one-way bearing which is used for limiting the worm wheel shaft to do one-way movement is fixedly arranged between the worm wheel shaft and the tightening frame. As a preferable scheme, the inside of tightening frame is fixedly provided with the bearing box, be equipped with on the bearing box and be fit for installing the bearing recess of one-way bearing, be provided with on the worm-wheel axle with one-way bearing spacing boss in the bearing recess. As a preferable scheme, a through hole communicated with the bearing groove is formed in the bearing box in a penetrating mode, one end of the worm wheel shaft penetrates through the one-way bearing and the through hole and then is connected with the tightening wheel, and the other end of the worm wheel shaft is rotatably connected with the tightening frame through the positioning bearing. As a preferable scheme, the worm wheel and the tightening wheel are respectively arranged at two sides of the bearing box, a first space suitable for accommodating the worm wheel is formed between the bearing box and the tightening frame, and the worm extends into the first space to be meshed with the worm wheel. As a preferable mode, a side cover opposite to the bearing box is arranged on one side of the tightening frame, and a second space suitable for accommodating the tightening wheel is formed between the side cover and the bearing box. As a preferable scheme, the tightening base comprises a base body and a belt releasing bottom plate connected to one side of the bottom of the base body, a tightening roller positioned below the tightening wheel is arranged on th