CN211943863U

CN211943863U - Novel belt conveying tensioning device

Info

Publication number: CN211943863U
Application number: CN202020476963.XU
Authority: CN
Inventors: 刘超
Original assignee: Dongguan Rongsheng Packaging Technology Co ltd
Current assignee: Dongguan Rongsheng Packaging Technology Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-11-17
Anticipated expiration: 2030-04-03

Abstract

The utility model relates to an automatic change equipment for packing technical field, indicate a novel area of sending and tensioning device especially, contain: the frame, its characterized in that, be equipped with band feeding mechanism and band pressing mechanism in the frame, band feeding mechanism includes drive assembly and the gear seat of taking driven gear, and outside according to the preface cover is equipped with band feeding wheel and driving gear on drive assembly's the output, and driving gear and driven gear meshing transmission, driven gear's side are equipped with the pinch roller that corresponds with band feeding wheel, and band pressing mechanism includes lever arm, first connecting piece, compresses tightly the subassembly and fixes the back shaft in the frame, the center department and the back shaft swing joint of lever arm, be equipped with the axial region on the gear seat, the axial region is articulated with the one end of lever arm, and the other end and the first connecting piece of lever arm are. The utility model discloses can be applicable to the strapping of different thickness, can bring in the area, provide different frictional force when moving back the area, simple structure, low in production cost.

Description

Novel belt conveying tensioning device

Technical Field

The utility model relates to an automatic change equipment for packing technical field, indicate a novel band-pass tensioning device especially.

Background

In the early stage of the 20 th century and the 60 th year, with the appearance of polypropylene materials, a polypropylene plastic belt packer was developed in foreign countries, and the packer gradually replaces steel belt bundling in many fields, particularly in the field of light industry, so that the packer is rapidly popularized.

The Chinese automatic packer is developed from the middle of the 20 th century and the 80 th century, is popularized in the department issuing books and newspapers at first, develops abnormally and rapidly in the years, and is widely applied to the industries of light industry, food, foreign trade, general merchandise, printing, medicine, chemical industry, post and telecommunications, textile and the like.

At present, some manufacturers for producing the packing machine adopt international standards and absorb the characteristics of foreign advanced technologies, have great improvement on standard level, design and manufacture technology and product quality, achieve the advanced level of foreign similar equipment in quality, can automatically position, bundle and rotate to bundle cross-shaped, # -shaped and other patterns, adopt microcomputer control, and realize unmanned automatic bundling production lines. The future development trend of the packer is extended to the aspects of full automation, high-grade and diversification and the like.

The whole packing process of the bundling and packing machine comprises the steps of belt feeding, belt feeding in place, belt pressing of the head end, belt winding, belt pressing of the tail end, belt cutting, buckle making of a welding mechanism, belt discharging after opening of a bottom plate and resetting of a machine head. In the steps, the belt feeding and withdrawing are realized by the forward and reverse rotation of the belt feeding device, the roller group consists of a driving roller and a driven roller, the packing belt penetrates through the space between the driving roller and the driven roller, and the driving roller and the driven roller drive the packing belt to feed or withdraw the belt by virtue of the friction force through the forward rotation or the reverse rotation. Because the friction force required to be provided by the belt feeding wheel is smaller during belt feeding and the larger friction force is required to tighten the strapping belt during belt retracting, two working states exist between the driving roller and the driven roller; namely, the pressing force between the driving roller and the driven wheel is smaller when the belt is fed, and the pressing force between the driving roller and the driven wheel is larger when the belt is collected.

Due to the wide variety of strap sizes, thickness variations can occur during manufacture of the strap thickness. In order to adapt to the thickness change of the strapping tape, the conventional strapping machine needs to complete the strapping tape by a complex mechanism or replace different devices, the complex structure not only can increase the input cost, but also brings great trouble for after-sale maintenance.

Disclosure of Invention

In order to solve the problem, the utility model provides a novel area overspeed device tensioner that send, its main objective can be applicable to the strapping of different thickness, can provide simultaneously and send the area, move back the required frictional force in area, simple structure, low in production cost.

In order to achieve the above object, the utility model adopts the following technical scheme: a novel tape feed tensioning apparatus comprising: the belt feeding mechanism comprises a driving assembly and a gear seat with a driven gear, a belt feeding wheel and a driving gear are sleeved outwards and sequentially on the output end of the driving assembly, the driving gear is in meshed transmission with the driven gear, a pressing wheel corresponding to the belt feeding wheel is arranged on the side face of the driven gear, the belt feeding mechanism comprises a lever arm, a first connecting piece, a pressing assembly and a supporting shaft fixed on the frame, the center of the lever arm is movably connected with the supporting shaft, a shaft part is arranged on the gear seat and hinged with one end of the lever arm, and the other end of the lever arm is hinged with the first connecting piece;

the pressing assembly comprises a pushing piece, a short swing arm, an adjusting screw rod and a rotating shaft arranged on the rack, the output end of the pushing piece is connected with the short swing arm through the rotating shaft, one end of the adjusting screw rod penetrates through the short swing arm, and the other end of the adjusting screw rod is connected with the first connecting piece;

the adjusting screw rod is sleeved with a spring, the spring is sleeved with a spring sleeve, one end of the spring extends out of the spring sleeve and abuts against the short swing arm, the adjusting screw rod is in threaded connection with a nut, and the nut abuts against the end portion of the spring sleeve.

Further, the pushing piece comprises a jacking cylinder, a long swing arm and a second connecting piece, the jacking cylinder is arranged on the rack, a piston rod of the jacking cylinder is hinged to one end of the long swing arm through the second connecting piece, and the other end of the long swing arm is connected with the rotating shaft.

Furthermore, the driving assembly comprises a forward and reverse rotating motor and a speed reducer fixed on the rack, the output end of the forward and reverse rotating motor is connected with the input shaft of the speed reducer, and the belt conveying wheel and the driving gear are sequentially sleeved on the output shaft of the speed reducer.

Furthermore, the frame is also provided with a conduction band channel with an open upper end and an open lower end, the conduction band channel is positioned above the belt feeding wheel and the pinch roller, and the open lower end of the conduction band channel corresponds to the space between the belt feeding wheel and the pinch roller.

The beneficial effects of the utility model reside in that:

the utility model discloses outside in proper order on the output of drive assembly overlaps and is equipped with band-feeding wheel and driving gear, driving gear and driven gear meshing transmission, and driven gear's side is equipped with the pinch roller that corresponds with band-feeding wheel, and belt pressing mechanism includes lever arm, first connecting piece, compresses tightly the subassembly and fixes the back shaft in the frame, and the center department and the back shaft swing joint of lever arm, be equipped with the axial region on the pinion stand, the axial region is articulated with the one end of lever arm; the gap between a belt feeding wheel and a pressing wheel of the device can be adjusted through a lever arm, and the device can adapt to strapping tapes with different thicknesses;

meanwhile, the pressing force applied to the spring can be transmitted to the pressing wheel through the adjusting screw rod, the first connecting piece, the lever arm and the gear seat, so that friction force is provided for the strapping tape between the pressing wheel and the tape-feeding wheel, the rotating shaft can be driven by the pushing piece to drive the short swing arm to compress the spring, the pressing force of the spring is increased, and friction force required by tape withdrawing is provided.

Therefore, the utility model discloses can be applicable to the strapping of different thickness, can send the area, provide different frictional force when moving back the area, simple structure, low in production cost.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a rear view of the present invention.

Fig. 3 is a structural view of the present invention.

Fig. 4 is another structural view of the present invention.

Fig. 5 is a structural diagram of the driven gear and the pressing wheel of the present invention.

The reference numbers illustrate: 1. a driving gear; 2. a driven gear; 3. a gear seat; 4. a shaft portion; 5. a support shaft; a lever arm; 7. a conduction band channel; 8. a first connecting member; 9. adjusting the screw rod; 10. a nut; 11. a spring housing; 12, short swing arm; 13. jacking a cylinder; 14. a second connecting member; 15. a long swing arm; 16. a rotating shaft; 17. a speed reducer; 18. a positive and negative rotation motor; 19. a spring; 20. a pinch roller; 21. a feed roller; 22. and a frame.

Detailed Description

Referring to fig. 1 to 5, the present invention relates to a novel tape feeding and tensioning apparatus,

the tape tensioning device comprises: the belt feeding mechanism comprises a driving assembly and a gear seat 3 with a driven gear 2, a belt feeding wheel 21 and a driving gear 1 are sleeved outwards and sequentially on the output end of the driving assembly, the driving gear 1 is in meshed transmission with the driven gear 2, a pressing wheel 20 corresponding to the belt feeding wheel 21 is arranged on the side face of the driven gear 2, the belt feeding mechanism comprises a lever arm 6, a first connecting piece 8, a pressing assembly and a supporting shaft 5 fixed on the frame 22, the center of the lever arm 6 is movably connected with the supporting shaft 5, a shaft part 4 is arranged on the gear seat 3, the shaft part 4 is hinged to one end of the lever arm 6, and the other end of the lever arm 6 is hinged to the first connecting piece 8;

the pressing assembly comprises a pushing piece, a short swing arm 12, an adjusting screw rod 9 and a rotating shaft 16 arranged on a rack 22, the output end of the pushing piece is connected with the short swing arm 12 through the rotating shaft 16, one end of the adjusting screw rod 9 penetrates through the short swing arm 12, and the other end of the adjusting screw rod 9 is connected with a first connecting piece 8;

the adjusting screw rod 9 is sleeved with a spring 19, the spring 19 is sleeved with a spring 19 sleeve 11, one end of the spring 19 extends out of the spring 19 sleeve 11 to abut against a short swing arm 12, the adjusting screw rod 9 is in threaded connection with a nut 10, and the nut 10 abuts against the end part of the spring 19 sleeve 11;

it should be noted that, the driving gear 1 and the driven gear 2 are in meshed transmission, and when the driving gear 1 rotates, the driven gear 2 is driven to rotate, so that the pressing wheel 20 on the driven gear 2 rotates therewith.

The working principle is as follows:

in the using process, a packing belt passes through the space between the belt feeding wheel 21 and the pressing wheel 20, and the friction force between the belt feeding wheel 21 and the pressing wheel 20 and the forward rotation or the reverse rotation of the belt feeding wheel 21 and the pressing wheel 20 drive the packing belt to feed or withdraw the belt;

when the belt is fed, the spring 19 is kept at a certain adjustable pre-pressure by the sleeve 11 and the short swing arm 12 of the spring 19, and the pre-pressure is transmitted to the pressing wheel 20 through the adjusting screw rod 9, the first connecting piece 8, the lever arm 6 and the gear seat 3 so as to be applied to the strapping belt between the belt feeding wheel 21 and the pressing wheel 20 to provide friction force; the pre-tightening force of the spring 19 can be adjusted by adjusting the nut 10;

when the strapping tape is withdrawn, the pushing piece drives the rotating shaft 16 to drive the short swing arm 12 to rotate, the short swing arm 12 rotates to compress the spring 19, the prepressing force of the spring 19 is increased, the prepressing force sequentially passes through the adjusting screw rod 9, the first connecting piece 8, the lever arm 6 and the gear seat 3 to increase the pressure between the strap feeding wheel 21 and the pressing wheel 20, and therefore the friction force borne by the strapping tape is increased to help the strapping tape of the strapping tape.

The pushing piece comprises a jacking cylinder 13, a long swing arm 15 and a second connecting piece 14, the jacking cylinder 13 is arranged on the rack 22, a piston rod of the jacking cylinder 13 is hinged with one end of the long swing arm 15 through the second connecting piece 14, and the other end of the long swing arm 15 is connected with the rotating shaft 16; the purpose limited here is that the principle and structure of the jacking cylinder 13 are simple, easy to install and maintain, and the requirement for constructors is not high.

The driving assembly comprises a forward and reverse rotation motor 18 and a speed reducer 17 fixed on a rack 22, the output end of the forward and reverse rotation motor 18 is connected with the input shaft of the speed reducer 17, and the belt conveying wheel 21 and the driving gear 1 are sequentially sleeved on the output shaft of the speed reducer 17; the forward and reverse rotation motor 18 and the speed reducer 17 can accurately control the rotation of the belt conveyor 21 and can control the forward rotation and the reverse rotation of the belt conveyor 21 and the driving gear 1.

The frame 22 is further provided with a guide belt channel 7, the upper end and the lower end of which are open faces, the guide belt channel 7 is located above the belt feeding wheel 21 and the pressing wheel 20, and the open face of the lower end of the guide belt channel 7 corresponds to the space between the belt feeding wheel 21 and the pressing wheel 20.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims

1. A novel tape feed tensioning apparatus comprising: the belt feeding mechanism comprises a driving assembly and a gear seat with a driven gear, a belt feeding wheel and a driving gear are sleeved outwards and sequentially on the output end of the driving assembly, the driving gear is in meshed transmission with the driven gear, a pressing wheel corresponding to the belt feeding wheel is arranged on the side face of the driven gear, the belt feeding mechanism comprises a lever arm, a first connecting piece, a pressing assembly and a supporting shaft fixed on the frame, the center of the lever arm is movably connected with the supporting shaft, a shaft part is arranged on the gear seat and hinged with one end of the lever arm, and the other end of the lever arm is hinged with the first connecting piece;

2. A novel tape feeder tensioning device as defined in claim 1 wherein: the pushing piece comprises a jacking cylinder, a long swing arm and a second connecting piece, the jacking cylinder is arranged on the rack, a piston rod of the jacking cylinder is hinged to one end of the long swing arm through the second connecting piece, and the other end of the long swing arm is connected with the rotating shaft.

3. A novel tape feeder tensioning device as defined in claim 1 wherein: the driving assembly comprises a forward and reverse rotating motor and a speed reducer fixed on the rack, the output end of the forward and reverse rotating motor is connected with the input shaft of the speed reducer, and the belt conveying wheel and the driving gear are sequentially sleeved on the output shaft of the speed reducer.

4. A novel tape feeder tensioning device as defined in claim 1 wherein: the machine frame is also provided with a conduction band channel with an open upper end and an open lower end, the conduction band channel is positioned above the belt conveying wheel and the pinch roller, and the open lower end of the conduction band channel corresponds to the space between the belt conveying wheel and the pinch roller.