阅读说明：本技术 一种便携式打包机 (Portable packing machine ) 是由 严远忠 彭向 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种便携式打包机,包括：捆扎带收紧机构,包括：被旋转驱动的收紧轮、位于收紧轮下方的收紧板,将收紧轮与驱动机构进行连接的传动机构；捆扎带熔接机构,其包括熔接架、定位在熔接架上的熔接上齿、连接于机座上的熔接下齿；熔接架上的熔接上齿在一驱动机构带动下相对熔接下齿进行振动焊接；熔接状态转换机构,被配置成使捆扎带熔接机构在焊接位置和休止位置之间进行切换；收紧轮升降机构,包括：安装有收紧轮的收紧轮摆座、枢接于机座的摆杆,将摆杆与收紧轮摆座的自由端进行连接的连接组件,在摆杆的驱动下实现收紧轮摆座和收紧轮相对与收紧板的距离调整。上述打包机结构简单,操作便利,制造和维修难度低,具有很好的市场前景。(The invention discloses a portable packer, comprising: a strap tensioning mechanism comprising: the tightening wheel is driven to rotate, the tightening plate is positioned below the tightening wheel, and the transmission mechanism is used for connecting the tightening wheel with the driving mechanism; the strapping tape welding mechanism comprises a welding frame, a welding upper tooth positioned on the welding frame and a welding lower tooth connected on the base; the welding upper teeth on the welding frame are driven by a driving mechanism to perform vibration welding relative to the welding lower teeth; a welding state switching mechanism configured to switch the strap welding mechanism between a welding position and a rest position; tightening wheel elevating system includes: the device comprises a tightening wheel swing seat provided with a tightening wheel, a swing rod pivoted to a base, and a connecting assembly for connecting the swing rod with the free end of the tightening wheel swing seat, wherein the distance between the tightening wheel swing seat and the tightening wheel relative to a tightening plate is adjusted under the driving of the swing rod. The packaging machine is simple in structure, convenient to operate, low in manufacturing and maintaining difficulty and good in market prospect.)

1. The utility model provides a portable baling press which characterized in that, is including setting up the following structure on baling press frame (1):

a strap tightening mechanism (2) comprising: a tightening wheel (21) driven to rotate, a tightening plate (22) arranged on the base plate (11) of the machine and positioned below the tightening wheel, and a transmission mechanism for connecting the tightening wheel (21) with the driving mechanism; the annular strapping tape clamped between the tightening wheel and the tightening plate is tightened under the self-rotation driving of the tightening wheel (21);

a binding band welding mechanism (3) configured to form a friction welding connection at an overlapping position of the binding band loops; it comprises a welding frame (32) driven by swing, a welding upper tooth (34) positioned on the welding frame, and a welding lower tooth (35) connected on a machine base; the welding upper teeth (34) on the welding frame (32) are driven by a driving mechanism to carry out vibration welding relative to the welding lower teeth (35);

a welding state switching mechanism (8) configured to switch the strap welding mechanism (3) between a welding position and a rest position;

tightening wheel elevating system (4) includes: one end of the tightening wheel swing seat is pivoted with the machine seat frame body (12) through a pivot (40) and is used for installing a tightening wheel, a swing rod (42) is pivoted with the machine seat, a connecting component (43) is used for connecting the swing rod with the free end of the tightening wheel swing seat, and the distance between the tightening wheel swing seat (41) and the tightening wheel (21) and the tightening plate (22) is adjusted under the driving of the swing rod (42).

2. The portable baler according to claim 1, wherein the base (1) is provided with an elastic component (44), the lower end of the elastic component (44) presses one side (41a) of the tension wheel swing seat (41) away from the pivot (40), the elastic component (44) is limited in a limiting cavity between the side edge of the tension wheel swing seat (41) and the base, and the tension wheel swing seat (41) is kept in a pressing position under the pressing action of the elastic component (44) so as to realize the pressing of the tension wheel (21) and the tension plate (22).

3. The portable baler according to claim 2, characterized in that the output shaft (71a) of the first drive mechanism (71) is in a direction of rotation in transmission connection with the takeup wheel (21) via the planetary gear transmission (5); the movement of an output shaft (71a) of the first driving mechanism (71) in a second opposite direction drives the strapping welding mechanism (3) to work;

the welding state switching mechanism (8) is driven by a first driving mechanism (71) or driven by another second driving mechanism (72) alone.

4. The portable baler according to claim 3, wherein the welding state switching mechanism (8) comprises an eccentric wheel (81) driven to rotate by the second driving mechanism (72), a swing bracket (82) pivoted to the base at one side and driven to rotate by the outer circumferential surface of the eccentric wheel (81), and a compression leg (83) arranged on the swing bracket (82), wherein the swing track of the bottom of the compression leg (83) passes through the top surface of the welding frame (32), the swing bracket (82) swings up and down under the rotation drive of the eccentric wheel (81), and the welding frame (32) is pressed to the welding position through the compression leg (83); the bottom of the welding frame (32) is vertically provided with a second elastic component (37) downwards, and the deformation restoring force of the second elastic component (37) enables the welding frame (32) to automatically restore to the rest position upwards.

5. The portable baler according to claim 4, wherein the swing bracket (82) is fixedly provided with at least one lower roller (842) facing the inner side surface of the output shaft of the second drive mechanism (72) below the eccentric wheel (81), and the swing bracket is driven to swing downwards to extrude the fusion welding frame (32) through interference fit between the outer peripheral surface of the eccentric wheel (81) and the lower roller and interference fit between the outer peripheral surface of the eccentric wheel (81) and the lower roller;

or the inner side surface of the swing bracket (82) facing the output shaft of the second driving mechanism (72) is respectively provided with an upper roller (841) and a lower roller (842) which are respectively matched with the eccentric wheel (81) in an interference manner above and below the eccentric wheel (81); the outer peripheral surface of the eccentric wheel (81) is in interference fit with the lower roller (842), so that the swinging bracket is driven to swing downwards to extrude the welding frame (32); the swinging bracket is driven to swing upwards by interference fit of the eccentric wheel (81) and the upper roller (841) and restoring force of the second elastic component (37).

6. The portable baler according to claim 5, characterized in that the compression leg (83) is movably connected to the swing bracket (82) by means of a compression leg buffer structure (86); on the upper and lower both ends of compression leg (83) run through last positioning seat (871) of swing bracket (82) and the through-hole of lower positioning seat (872) respectively, the compression leg is located the outer upper end spiro union nut of last positioning seat (871), the compression leg lower part extends to outside the lower positioning seat, the cross section of compression leg lower part is less than the through-hole cross section of lower positioning seat (872), suit spring (861) on compression leg (83), the protruding of positioning seat (871) and compression leg (83) bottom lateral wall is contradicted respectively at spring (861) both ends.

7. The portable baler according to claim 6, characterized in that the bottom of the compression leg extends outwards to form a hemispherical-like head (831), the spherical surface being arranged downwards, the lower end of the spring (861) abutting against the top surface of the head.

8. The portable baler according to claim 4, wherein the connecting assembly (43) comprises a horizontally arranged connecting rod (431) and a switching swing part (432) with the middle part pivoted to the tension wheel swing seat (41), one end of the connecting rod is hinged to the swing rod (42), the other end of the connecting rod (431) is connected with the end part of the switching swing part (432), the swing rod (42) swings under the driving action of external force and drives the tension wheel swing seat (41) to swing upwards away from the pressing position to the loosening position through the connecting rod (431) and the switching swing part (432); the tightening wheel swing seat (41) automatically returns to the pressing position under the restoring action of the elastic component (44).

9. The portable baler according to claim 8, characterized in that the other end of the switching rocker (432) remote from the connecting rod is provided with a meshing portion (432a) cooperating with the planetary gear (5); when the tightening wheel swing seat (41) is lifted to be away from the pressing position, the switching swing part swings to the position where the meshing part (432a) is away from the planetary gear transmission mechanism (5), the planetary gear transmission mechanism cannot transmit to the tightening wheel (21), and the tightening wheel is static; when the tightening wheel swing seat (41) is located at the pressing position, the switching swing part swings to the meshing part (432a) to be meshed with the planetary gear transmission mechanism (5), and the planetary gear transmission mechanism (5) transmits the tightening wheel to drive the tightening wheel (21) to work.

10. The portable baler according to claim 9, wherein the take-up wheel swing seat (41) is provided with a receiving groove for receiving the first elastic member (46), one end of the first elastic member (46) abuts against an inner wall of the receiving groove, and the other end thereof abuts against a back portion of the engaging portion (432a) to press the engaging portion (432a) against the outer teeth of the planetary gear mechanism (5).

11. The portable baler according to claim 10, characterized in that the pivot (40) is provided with a drive gear (61) which is in driving connection with the drive mechanism (7) and which is in external engagement with the outermost first toothed rim (62) of the planetary gear (5).

12. The portable baler according to claim 10, wherein the first drive mechanism (71) transmits power to a direction coincident with or parallel to the rotation axis of the drive gear (61) through a corner drive bevel gear (71b) provided at the end of its own output shaft (71a) and a corner driven bevel gear (71c) engaged with the corner drive bevel gear (71); the angle driven bevel gear (71c) is directly or indirectly transmitted to the driving gear (61) through other gear transmission of the coaxial transmission, thereby further transmitting to the planetary gear transmission mechanism (5).

13. The portable strapping machine as claimed in claim 12, characterized in that the strap welding device (3) comprises an eccentric shaft (31) which is located on the machine base (1) and is drivingly connected to the first drive device (71), a welding frame (32) which is pivoted on the eccentric shaft, a welding arm (33) which is located in the interior of the welding frame (32) and has its end pivoted on the eccentric shaft (31), an upper welding tooth (34) which is hinged to the front end of the welding arm (33), a lower welding tooth (35) which is located below the upper welding tooth (34) and is connected to the machine base; the welding upper teeth (34) are embedded into the positioning grooves (321) of the welding frame (32) and exposed out of the tooth-shaped bottom, and the top surface and the left and right side surfaces of the welding upper teeth (34) are in sliding connection with the inner walls of the positioning grooves (321); the eccentric shaft (31) drives the welding frame (32) and the welding upper teeth (34) to perform reciprocating oscillation motion.

14. The portable strapping machine as claimed in claim 13, characterized in that the output shaft of the first drive mechanism (71) is connected to the eccentric shaft (31) of the strap welding unit (3) via a synchronous belt drive.

15. The portable baler according to claim 13 or 14, characterized in that the chute (342) is provided on the left and right side walls and the top wall of the welding upper teeth (34) in the positioning slot (321) and/or on the corresponding inner wall of the positioning slot (321) of the welding frame, a plurality of balls (343) are mounted in the chute (342), and the balls (343) do not fill the chute (342) and have a certain degree of freedom to roll.

16. The portable strapping machine of claim 4, wherein three travel switches are provided, a first travel switch (101) and a second travel switch (102) being located on either side of the swing path of the swing bracket (82) for detecting whether the strap welding mechanism (8) is in the rest position or the welding position, respectively; the third travel switch (103) is arranged above the tightening wheel swing seat (41) and used for detecting whether the tightening wheel swing seat (41) is lifted to a release position under the driving of the swing rod (42).

17. The portable strapping machine as claimed in claim 1, characterized by being arranged to be operated in a first mode or a second mode, wherein the strapping machine housing is provided with a first operating element for activating the drive mechanism, and in the first mode the strap tensioning mechanism (2), the welding state switching mechanism (8), the strap welding mechanism (3) are automatically activated in succession by operating the first operating element; the baling machine housing is further provided with a second operating element for actuating the drive mechanism, and in a second mode, the strap tensioning mechanism (2) is actuated by operating the first operating element, and the welding state switching mechanism (8) and the strap welding mechanism (3) are actuated by operating the second operating element.

18. The portable baler according to claim 1, characterized in that a strapping band limiting structure is provided, comprising a left inner limiting plate (91) and a right inner limiting plate (92) for limiting the inner side of the strapping band, and a left outer limiting plate (93) and a right outer limiting plate (94) for limiting the outer side of the strapping band;

the left inner limiting plate (91) and the right inner limiting plate (92) are respectively arranged on the left side surface and the right side surface of the base plate (11), and limiting parts extending upwards of the two limiting plates are close to a straight line where the inner side edge of the tightening plate (22) is located and used for limiting the inner side edge of the strapping tape;

a rocking plate (90) perpendicular to the base plate (11) is arranged at the outer end of the pivot (40) in a linkage manner, the rocking plate (90) is driven by the pivot (40) to synchronously swing up and down when the tightening wheel swing seat (41) swings up and down, the right side bottom of the rocking plate (90) is fixedly connected with a right outer limiting plate (94), the left side bottom of the rocking plate (90) is vertically and fixedly provided with an inserting column (97), the outer side surface of the machine seat frame body (12) is pivoted with a left outer limiting plate (93) through a rotating shaft, a slot for the inserting column (97) to pass through is formed in the left outer limiting plate (93), and the tightening wheel swing seat drives the rocking plate (90) and the left outer limiting plate (93) to swing up and down through the matching between the inserting column (97) and the; the projection of the left outer limiting plate (93) and the right outer limiting plate (94) on the horizontal plane is close to the straight line where the outer side of the tightening plate (22) is located, and the two limiting plates after downward swinging limit the outer side of the strapping tape.

19. The portable baler according to claim 18, wherein the left inner limiting plate (91) and the right inner limiting plate (92) are connected with the base plate (11) in an adjustable manner, elongated connecting holes (95) are formed in the left inner limiting plate (91) and the right inner limiting plate (92), and screws are screwed with the base plate (11) through matching with different positions of the adjustable elongated connecting holes, so that the positions of the left inner limiting plate (91) and the right inner limiting plate (92) are adjusted.

Technical Field

The invention relates to the technical field of packaging machines, in particular to a portable packaging machine.

Background

With the rapid development of science and technology, various types of strapping equipment applied to various fields and meeting different requirements appear. A common strapping method is to pack the article to be packaged with a plastic strapping band, so that a variety of different strapping band packers are available on the market today, by tightening the strapping band around the band-packed article and by fixedly connecting the overlapping head portions of the strapping band by friction welding, the packing is completed. Because portable hand baling press convenient to use, it is convenient to remove, portable baling press application is more and more extensive.

According to the degree of automation and the degree of complexity, the conventional strapping tape packing machine is basically divided into two types, one type is high in degree of automation, high in manufacturing cost, extremely complex in internal structure, high in integration level, high in maintenance difficulty and maintenance cost after a problem occurs in the using process, and difficult to popularize and apply on a large scale; another kind of baling press is the comparatively traditional baling press that degree of automation is low, and it is high to use needs artifical participation, and operating procedure is loaded down with trivial details, and it is inconvenient to use, but the price is lower.

Therefore, the prior art has yet to be developed.

Disclosure of Invention

In view of the above technical problems, the embodiment of the present invention provides a portable packing machine with simple structure, convenient use and easy maintenance. The technical scheme of the invention is as follows:

a portable baling press, it includes the following structure that sets up on the baling press frame:

a strap tensioning mechanism comprising: the tightening wheel is driven to rotate, the tightening plate is positioned below the tightening wheel, and the transmission mechanism is used for connecting the tightening wheel with the driving mechanism; the annular strapping tape clamped between the tightening wheel and the tightening plate is tightened under the self-rotation driving of the tightening wheel;

a strap welding mechanism configured to form a friction welding connection at an overlapping position of the strap loops; the welding machine comprises a welding frame driven by swinging, a welding upper tooth positioned on the welding frame and a welding lower tooth connected on a machine base; the welding upper teeth on the welding frame are driven by a driving mechanism to perform vibration welding relative to the welding lower teeth;

a welding state switching mechanism configured to switch the strap welding mechanism between a welding position and a rest position;

tightening wheel elevating system includes: one end of the swing rod is pivoted with the base through a pivot and is used for installing a tightening wheel swing seat, the swing rod is pivoted on the base, the swing rod is connected with the free end of the swing seat of the tightening wheel, and the distance between the swing seat of the tightening wheel and the tightening plate is adjusted under the driving of the swing rod.

In the portable packing machine, the base is provided with an elastic component, the lower end of the elastic component extrudes one side of the tightening wheel swing seat away from the pivot, the elastic component is limited in a limiting cavity between the side edge of the tightening wheel swing seat and the base, and the tightening wheel swing seat is kept in a pressing position under the pressing action of the elastic component so as to realize the mutual extrusion of the tightening wheel and the tightening plate.

In the portable packer, the output shaft of the first driving mechanism rotates in one direction and is in transmission connection with the tightening wheel through the planetary gear transmission mechanism; the output shaft of the first driving mechanism moves in a second opposite direction to drive the strapping tape welding mechanism to work;

the welding state switching mechanism is driven by the first driving mechanism or driven by another second driving mechanism alone.

In an optional embodiment, the welding state switching mechanism comprises an eccentric wheel driven to rotate by the second driving mechanism, a swinging support, a pressure column and a swinging track, wherein one side of the swinging support is pivoted with the base and is driven by the peripheral surface of the eccentric wheel to rotate, the swinging track is arranged on the pressure column of the swinging support, the bottom of the pressure column passes through the top surface of the welding frame, the swinging support swings up and down under the driving of the rotation of the eccentric wheel, and the welding frame is pressed to a welding position through the pressure column; the bottom of the welding frame is vertically provided with a second elastic component downwards, and the deformation restoring force of the second elastic component enables the welding frame to automatically restore to the rest position upwards.

Furthermore, at least one lower roller is fixedly arranged on the inner side surface of the swing bracket facing the output shaft of the second driving mechanism relative to the lower part of the eccentric wheel, and the swing bracket is driven to swing downwards to extrude the welding frame through the interference fit of the outer peripheral surface of the eccentric wheel and the lower roller and the interference fit of the outer peripheral surface of the eccentric wheel and the lower roller;

or the inner side surface of the swing bracket facing the output shaft of the second driving mechanism is respectively provided with an upper roller and a lower roller which are respectively matched with the eccentric wheel in an abutting mode below and above the eccentric wheel; the outer peripheral surface of the eccentric wheel is in interference fit with the lower roller wheel to drive the swinging bracket to swing downwards to extrude the welding frame; the swinging support is driven to swing upwards through the interference fit of the eccentric wheel and the upper roller and the restoring force of the second elastic component.

Furthermore, the compression leg is movably connected to the swing bracket through a compression leg buffer structure; the upper and lower both ends of compression leg run through respectively on the last positioning seat of swing bracket and the through-hole of lower positioning seat, and the upper end spiro union nut that the compression leg is located outside the last positioning seat, and outside the compression leg lower part extended to lower positioning seat, the cross section of compression leg lower part was less than the through-hole cross section of lower positioning seat, and a suit spring on the compression leg, the spring both ends were contradicted respectively and are gone up the protruding of positioning seat and compression leg bottom lateral wall.

Further, the pressure head of similar hemisphere face is formed to the outside extension in compression leg bottom, and the sphere sets up downwards, and the lower extreme of spring is contradicted the top surface of pressure head.

In the tightening wheel lifting mechanism, the connecting component comprises a connecting rod which is horizontally arranged and a switching swing part of which the middle part is pivoted with the tightening wheel swing seat, one end of the connecting rod is hinged with a swing rod, the other end of the connecting rod is connected with the end part of the switching swing part, the swing rod swings under the action of external force drive and drives the tightening wheel swing seat to swing upwards to leave a pressing position and reach a loosening position through the connecting rod and the switching swing part; the tightening wheel swing seat automatically returns to the pressing position under the restoring action of the elastic component.

Furthermore, the other end of the switching swing piece, which is far away from the connecting rod, is provided with a meshing part matched with the planetary gear transmission mechanism; when the tightening wheel swing seat is lifted to be far away from the pressing position, the swing part is switched to swing to a position where the meshing part is far away from the planetary gear transmission mechanism, the planetary gear transmission mechanism cannot transmit the tightening wheel, and the tightening wheel is static; when the tightening wheel swing seat is located the pressing position, the swing part is switched to swing to the meshing part to be meshed with the planetary gear transmission mechanism, and the planetary gear transmission mechanism transmits the tightening wheel to drive the tightening wheel to work.

Furthermore, the tightening wheel swing seat is provided with an accommodating groove for embedding the first elastic component, one end of the first elastic component is abutted against the inner wall of the accommodating groove, the other end of the first elastic component is abutted against the back of the meshing part, and the meshing part is pressed towards the outer teeth matched with the planetary gear transmission mechanism.

Furthermore, a driving gear in transmission connection with the driving mechanism is arranged on the pivot, and the driving gear is in external meshing with the first gear ring on the outermost side of the planetary gear transmission mechanism.

In the portable packer, a first driving mechanism transmits power to a direction coincident with or parallel to a rotating shaft of a driving gear through a corner driving bevel gear arranged at the tail end of an output shaft of the first driving mechanism and a corner driven bevel gear meshed with the corner driving bevel gear; the corner driven bevel gear is directly or indirectly transmitted to the driving gear through other gear transmission of coaxial transmission, so that the corner driven bevel gear is further transmitted to the planetary gear transmission mechanism.

In the portable packing machine, the strapping tape welding mechanism comprises an eccentric shaft, a welding frame, a welding arm, welding upper teeth and welding lower teeth, wherein the eccentric shaft is positioned on the base and is in transmission connection with the first driving mechanism; the welding upper teeth are embedded into the positioning grooves of the welding frame and expose out of the tooth-shaped bottom, and the top surfaces and the left and right side surfaces of the welding upper teeth are in sliding connection with the inner walls of the positioning grooves; the eccentric shaft simultaneously drives the welding frame and the welding upper teeth to perform back and forth oscillation motion.

Optionally, the output shaft of the first driving mechanism is connected to the eccentric shaft of the strapping tape welding mechanism through a synchronous belt transmission mechanism.

Furthermore, the welding upper teeth are arranged on the left side wall, the right side wall and the top wall in the positioning groove and/or the corresponding inner wall of the positioning groove of the welding frame, a plurality of balls are arranged in the sliding groove, and the sliding groove is not filled with the balls and has a certain rolling freedom degree.

The portable packer provided by the embodiment of the invention has the following beneficial effects:

1. through the swing arrangement of the swing seat of the tightening wheel, the swing rod indirectly connected with the free end of the swing seat of the tightening wheel is operated, so that the swing seat of the tightening wheel and the tightening wheel arranged on the swing seat of the tightening wheel can be driven to swing up and down, and the tightening wheel swings upwards to be far away from the tightening plate or swings downwards to be close to the tightening plate. The elastic component is arranged above one side of the tightening wheel swing seat far away from the pivot shaft, so that when the swing rod is loosened, the tightening wheel swing seat falls back to the pressing position under the action of elastic restoring force. And the switching swing part rotates for a certain angle under the action of the swing rod, so that the switching swing part is meshed with or far away from a gear ring of the planetary gear transmission mechanism, and the working state of the tightening wheel is switched.

2. Through the cooperation setting of tightening wheel elevating system and strapping tightening mechanism, the elevating movement of tightening wheel is connected with the transmission of tightening wheel and driving motor and is related, greatly simplifies the inner structure of baling press to operating efficiency has been improved. Specifically, the movement of the swing rod in one direction (pressing the swing rod) not only drives the tightening wheel to be lifted away from the tightening plate, but also enables the meshing part of the switching swing part to be away from the planetary gear transmission mechanism, the transmission connection between the driving mechanism and the tightening wheel is cut off, and the tightening wheel is in a non-working state; when the swing rod moves reversely (the swing rod is loosened or reversely lifted), the tightening wheel falls back to the pressing position, the meshing part of the switching swing part is meshed with the gear ring of the planetary gear transmission mechanism, and the tightening wheel rotates under the action of the driving mechanism and tightens the strapping band ring.

3. Carry out independent drive respectively with strapping butt fusion mechanism and butt fusion state shifter, not only improved the work independence of two kinds of mechanisms, reduced the manufacturing and the maintenance degree of difficulty of two kinds of mechanisms, still improved the control accuracy to the lift displacement distance of butt fusion upper tooth on the butt fusion frame.

4. The tooth sets up the spout on being located the corresponding inner wall of the lateral wall and the constant head tank of roof and/or butt fusion frame about the butt fusion frame constant head tank, and the installation has the many balls of certain degree of freedom in the spout. Above-mentioned setting up can greatly reduce the frictional force between tooth outer wall and the butt fusion frame constant head tank inner wall on the butt fusion in-process, not only guarantee the butt fusion in the tooth sliding position the degree of accuracy and motion stationarity, still reduced the wearing and tearing of these two kinds of parts, the life of extension spare part.

Drawings

Fig. 1 is a front view schematically showing the structure of a portable baler according to embodiment 1 of the present invention in a non-operating state (a state in which a takeup wheel is raised); the outer shell and part of the shielding structure are omitted in the figure;

fig. 2 is a schematic front view of the portable baler according to embodiment 1 of the present invention in operation; the outer shell and part of the shielding structure are omitted in the figure;

fig. 3 is an exploded view of the structure of a strap tightening mechanism in the portable baler of embodiment 1 of the present invention;

fig. 4 is an exploded view of an alternative view of the strap tensioning mechanism of the portable strapping machine of embodiment 1 of the present invention;

FIG. 5 is a schematic perspective view of a portable baler according to embodiment 1 of the present invention;

FIG. 6 is a schematic structural view showing a first state of a lifting mechanism for a take-up pulley in the portable baler according to embodiment 1 of the present invention;

FIG. 7 is a structural diagram of a second state of a lifting mechanism of a take-up pulley in the portable baler according to embodiment 1 of the invention;

fig. 8 is a schematic view showing a tape welding mechanism and a driving mechanism in the portable baler according to embodiment 1 of the present invention;

fig. 9 is another schematic view of the strap fusing mechanism and the driving mechanism in the wrapping machine according to embodiment 1 of the present invention; the fusion cage of fig. 8 is omitted;

fig. 10 is a side view of the strap fusing mechanism and drive mechanism of the strapping machine of example 1 of the present invention;

fig. 11 is a rear view of the welding state switching mechanism in embodiment 1 of the present invention;

fig. 12 is a perspective view of the welding state switching mechanism of fig. 11;

fig. 13 is a perspective view of the welding state switching mechanism of fig. 11 from another angle;

FIG. 14 is a front view of a first state of a strapping band limiting structure of the strapping machine of the present invention; state one is a non-operational state defining a strap;

FIG. 15 is a front view of a second state of the packing belt limiting structure of the packing machine of the present invention; the second state is the working state of the binding belt;

FIG. 16 is a side view of a second state of the strapping band limiting structure of the strapping machine of the present invention;

FIG. 17 is a schematic perspective view of the wrapping machine of embodiment 2;

FIG. 18 is another perspective view of the wrapping machine of embodiment 2;

FIG. 19 is a schematic right-view structural view of the wrapping machine in embodiment 2;

FIG. 20 is a schematic configuration view of a welding state switching mechanism of the wrapping machine according to embodiment 2; the eccentric wheel is omitted in the drawing;

fig. 21 is a rear view of the welding state switching mechanism of embodiment 2; the eccentric wheel is omitted in the drawing;

wherein:

the device comprises a machine base 1, a strapping tape tightening mechanism 2, a tightening wheel 21 and a tightening plate 22;

3, a strapping welding mechanism, a 31 eccentric shaft, a 32 welding frame, a 321 positioning groove, a 33 welding arm, 34 welding upper teeth, 341 limit protrusions, a 342 sliding groove, 343 balls, 35 welding lower teeth, 36 cutters and 37 second elastic components;

4a take-up wheel lifting mechanism, a 40 pivot, a 41 take-up wheel swing seat, a 41a take-up wheel swing seat movable side, a 42 swing rod, a 43 connecting assembly, a 431 connecting rod, a 431a limiting groove hole, a 432 switching swing part, a 432a meshing part, a 44 elastic assembly and a 46 first elastic component;

5 planetary gear train, 5a rotation axis, 61 drive gear, 62 first ring gear, 63 first sun gear, 64 first planet gear, 64a carrier, 65 second ring gear, 66 second sun gear, 67 second planet gear;

7 driving mechanisms, 71 first driving mechanisms, 71a output shaft, 71b corner driving bevel gears, 71c corner driven bevel gears, 71d input shafts, 72 second driving mechanisms, 711 first synchronizing gears, 712 second synchronizing gears and 713 tooth-shaped synchronous belts;

8, a welding state conversion mechanism, an 81 eccentric wheel, an 82 swing bracket, an 83 compression column, a 831 pressure head, an 841 upper roller, a 842 lower roller, an 85 swing arm, an 85a swing arm rotation axis, an 86 compression column buffer structure, an 861 spring, an 871 upper positioning seat and an 872 lower positioning seat;

90 rocking plates, 91 left inner limit plates, 92 right inner limit plates, 93 left outer limit plates, 94 right outer limit plates, 95 adjustable bar-shaped connecting holes, 101 first travel switches, 102 second travel switches and 103 third travel switches.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "vertical," "horizontal," "left," "right," "up," "down," "inner," "outer," "bottom," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.