WO2019154406A1

WO2019154406A1 - Belt limiting mechanism of portable binding machine

Info

Publication number: WO2019154406A1
Application number: PCT/CN2019/074753
Authority: WO
Inventors: 何瑜华; 姜水波
Original assignee: 台州市永派包装设备有限公司
Priority date: 2018-02-11
Filing date: 2019-02-10
Publication date: 2019-08-15

Abstract

Disclosed is a belt limiting mechanism of a portable binding machine. At a rear lateral belt-loading and belt-unloading position, the belt limiting mechanism is provided with a belt limiting member (4) which can open and close the rear lateral belt-loading and belt-unloading position. Compared with a tightening pulley assembly, the belt limiting member has a larger ascending and descending stroke, a higher ascending and descending speed, and the belt-loading and belt-unloading operation is more convenient, thereby improving the belt binding quality.

Description

Belt strapping mechanism for portable strapping machine

Technical field

The invention relates to the field of packaging machinery, and in particular to a hand strapping machine.

Background technique

When the portable strapping machine bundles the parts, the strap is tightened by a tensioning mechanism, and then the straps are cut and connected end to end. The portable strapping machine is vented to the outside of the strap tensioning mechanism to be able to be placed in the strapping strap and to remove the strapped strap. In this strapping machine, in order to facilitate the loading and unloading of the strap, no limit mechanism is provided, but the strapping quality of the strap is affected.

Summary of the invention

The technical problem to be solved by the present invention is to provide a belt limiting mechanism for a portable strapping machine, which can improve the strapping quality of the strap. To this end, the present invention adopts the following technical solutions:

a belt limiting mechanism of a portable strapping machine, the portable strapping machine having a rear side loading belt and a take-up portion, the rear side loading belt and the take-up portion being located at a tensioning belt portion of the belt tensioning mechanism and adjacent to each other In the position, the strap tensioning mechanism has a tensioning wheel assembly that can be raised and lowered, wherein the strap limiting mechanism is configured to open and close at the rear side loading and unloading portions. The belt side limiting part of the rear side loading and take-up portion is described.

Further, the mounting structure of the belt limiting member is connected with the tensioning wheel assembly in the belt tensioning mechanism or to a member that moves synchronously with the tensioning wheel assembly in the belt tensioning mechanism to pull When the tension wheel assembly is raised and lowered, it is also raised and lowered to open and close the rear side loading and taking portions.

Further, the mounting structure of the strap limiting member is provided with a movable mounting member that is movably connected to the tensioning wheel assembly or the component that is movably connected to the synchronous movement of the tensioning wheel assembly for pulling When the tension wheel assembly is raised and lowered, it also follows the movement.

Further, a guiding structure for moving the movable member is disposed between the movable mounting member and the tensioning wheel assembly or between the movable mounting member and the member that moves synchronously with the tensioning wheel assembly.

Further, the guiding structure comprises a guiding groove and a guiding pin, and the lifting distance of the belt limiting member connected by the movable mounting member is greater than the lifting distance of the tensioning wheel.

Further, the belt limiting mechanism is further provided with a return spring of the movable mounting member, one end of the movable mounting member is restrained to be blocked from continuing to rise, and is tightened or tightened by the spring. While remaining in the limit, the movable mounting member is disposed away from the end portion and is configured to belong to the guiding structure.

Further, the end of the movable mounting member that is held at the limit is opposite to the center of rotation of the rising and falling of the tensioning pulley on the opposite side of the tensioning wheel.

Further, it is provided with a width adjusting block with a sub-track on the inner side of the fixing assembly of the belt tensioning mechanism.

Further, the position of the width adjusting block in the length direction of the belt corresponds to the position where the belt limiting member is located.

Further, the strap limiting member is located on the outer side or the rear side of the portion where the tensioning wheel tensions the strap when the rear side loading strap and the strap taking portion are closed.

Because of adopting the technical solution of the invention, the invention has better belt limit effect and improves the strapping quality of the strap; and the strap limit member rises and falls together with the tensioning wheel assembly, the operation is more convenient, and further, the strap limit The component can have a larger ascending and descending stroke than the tensioning wheel assembly, and the belt limiting member has a fast ascending and descending speed, and the tape take-up operation is more convenient.

DRAWINGS

1 is a perspective view of an embodiment of the present invention.

Figure 2 is a front elevational view of an embodiment of the present invention.

Figure 3 is a side elevational view of an embodiment of the present invention.

Figure 4 is a front elevational view of the body block of the embodiment of the present invention.

Figure 5 is a perspective view of another angle of an embodiment of the present invention.

Detailed ways

Refer to the attached drawings. The portable strapping machine has a rear side loading belt and a take-up portion, wherein the rear side loading belt and the take-up portion are in a belt tensioning mechanism tensioning belt portion and a front and rear adjacent position thereof, the belt tensioning The mechanism includes a tensioning wheel assembly and a fixing assembly that can be lifted and lowered. The tensioning wheel assembly mainly includes a rotatable tensioning wheel 1, and a tensioning wheel frame 11, and the tensioning wheel frame 11 can be provided with a tensioning wheel side plate 12 The tensioning wheel frame 11 is rotatably connected with the body base 100 of the portable strapping machine. When the belt and the belt are to be loaded, the handle 200 is lifted, and the handle 200 drives the shaft 13 to rotate by the connecting mechanism, and then drives the tensioning wheel to lift, thereby driving While the shaft 13 rotates, the speed reduction mechanism of the tension wheel is also lifted up. Before the strapping work, the handle 200 is lowered, the shaft 13 is reversely rotated, and the tension wheel is lowered, and the speed reduction mechanism is driven while the shaft 13 is reversely rotated. Also put down. The shaft 14 of the tensioning wheel is inserted into the support hole 101 of the body base 100 to be coupled to the speed reduction mechanism. The fixing assembly mainly includes a fixed tooth plate 2.

The fixed tooth plate 2 has a tensioning engagement section 20, and the tensioning engagement section has a plurality of rows of teeth 21, and the plurality of rows of teeth of the tensioning engagement section are arranged in an arc shape. After the tensioning pulley 1 is lowered into the tensioning belt position, the tensioning pulley 1 is pulled. The teeth 10 on the tension wheel 1 can cooperate with the teeth 21 on the toothed plate tensioning engagement section 20 to sequentially tighten the strap 3; the teeth of the tensioning engagement section have at least three rows. The plurality of rows of teeth are arranged in an arc shape preferably of a circular arc shape or an approximately circular arc shape, and the diameter of the circular arc and the diameter of the tip of the tensioning wheel are the same or substantially the same or slightly larger.

The curved portion of the tensioning engagement section is to be in front of the portion that engages with the teeth on the tensioning wheel, and is front low and rear high to avoid slipping and improve the smoothness of the tensioning belt.

The teeth 10 on the tensioning wheel are helical teeth that are inclined toward the direction of tension. To improve the tension when tightening the belt.

The teeth of the tensioning engagement section starting row 211 are also helical teeth, the oblique direction is opposite to the tensioning rotation direction of the tensioning wheel, and along the tensioning rotation direction of the tensioning wheel, the teeth of the tensioning engagement section are The inclination is gradually reduced to avoid slipping and improve the smoothness of the tension band. The inclination is preferably reduced to a straight tooth or slightly inclined. In the present embodiment, the teeth 212 in the rear row of the tensioning engagement section are straight teeth.

The gap between the tensioning wheel 1 and the fixed tooth plate 2 and its front and rear extension portions can be used as the side loading and take-up portions.

The belt limiting mechanism is provided with a belt limiting member 4 for opening and closing the side loading and detaching portions at the rear side loading and detaching portions to open the rear side when the tape is taken and the tape is taken. At the loading and unloading position, the belt is restrained from the side at the tensioning mechanism during operation. Preferably, the mounting structure of the belt limiting member 4 is coupled to a tensioning wheel assembly in the belt tensioning mechanism or to a component that moves in synchronism with the tensioning wheel assembly, the belt limiting member 4 and the tensioning wheel assembly are raised together and Down, the operation is more convenient.

The strap stop member 4 may be a barrier, a stopper or a groove, or the like.

More preferably, the mounting structure of the strap limiting member 4 is connected with the tensioning wheel assembly in the strap tensioning mechanism, and when the tensioning pulley assembly is raised and lowered, the lifting and lowering are also followed to open the rear side mounting. The belt and the take-up portion and the belt 3 are limited.

The mounting structure of the belt limiting member is provided with a movable mounting member 5, which is movably connected to the tensioning wheel assembly to be raised and lowered when lifting and lowering on the tensioning wheel assembly; The belt limiting mechanism is further provided with a spring 6 for pulling up or lifting the movable mounting member 5, and a guiding structure for moving the movable mounting member 5 between the movable mounting member 5 and the tensioning wheel assembly.

The movable mounting member 5 may be a rotating member or a linear moving member, or a combination of the two movements, and the lifting and lowering of the movable mounting member 5 relative to the tensioning wheel assembly refers to the movable mounting member 5 and pulling The movable connection portion of the tension wheel assembly can be raised and lowered relative to the tension wheel assembly.

Preferably, for ease of installation, the movable mounting member 5 has a handle 51 at one end, and the handle portion 51 is restrained by the upper strap mechanism 300 of the carrying strap to be blocked from rising, and is tightened by the spring 6 or The top end is held such that the end is held under the limit, and the spring 6 is connected at one end to the fixed structure of the other end of the handle 51 and the body seat.

The guiding structure can allow the movable joint movable joint portion to have a sufficient range of motion and the correct movement route, and the belt limit member connected to the movable mounting member has a lifting distance greater than the lifting distance of the tensioning wheel.

A guide pin 15 is disposed on the tension wheel side plate 12 of the tension wheel assembly, and the movable mounting member 5 is provided with a guiding hole 52. The guiding pin 15 and the guiding hole 52 cooperate to form the guiding structure. Other structures, such as cams, can also be used for the guiding structure.

The end of the movable mounting member 5 that is held at the limit, and the end where the handle 51 is located and the center of rotation 13 of the rising and falling of the tensioning pulley are on the opposite side of the tensioning wheel, so that The structure is easier to arrange, and the lifting and lowering of the belt limiting member 4 can be made larger, and the sensitivity of the movement is improved.

The portable strapping machine is provided with a sinking ramp 22 that cooperates with the strap limiting member 4 on the outer side of the fixing assembly of the strap tensioning mechanism to facilitate the protection of the strap limiting member 4.

The strap limiting member 4 is located on the outer side or the rear side of the portion of the tensioning wheel to tighten the strap when the rear side loading strap and the strap taking portion are closed to better limit the strap. And cooperate with the adhesive tape mechanism in front of the tensioning wheel assembly.

The portable strapping device is provided with a width adjusting block 7 with a sub-track on the inner side of the fixing assembly of the strap tensioning mechanism, so that the belts of different widths can obtain the optimal track limit, and the adjusting block 7 is detachably connected. On the inner side, the adjustment blocks 7 of different thicknesses are replaced. The position of the width adjusting block 7 in the length direction of the belt corresponds to the position where the belt limiting member 4 is located to better restrict the belt and guide the belt.

The above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the scope of the present invention. Among them.

Claims

a belt limiting mechanism of a portable strapping machine, the portable strapping machine having a rear side loading belt and a take-up portion, the rear side loading belt and the take-up portion being located at a tensioning belt portion of the belt tensioning mechanism and adjacent to each other In the position, the strap tensioning mechanism has a tensioning wheel assembly that can be raised and lowered, wherein the strap limiting mechanism is configured to open and close at the rear side loading and unloading portions. The belt side limiting part of the rear side loading and take-up portion is described.
The belt limiting mechanism of the portable strapping machine according to claim 1, wherein the mounting structure of the belt limiting member and the tensioning wheel assembly in the belt tensioning mechanism are connected or the belt tensioning mechanism The tensioning wheel assembly in the synchronized movement of the components is coupled to lift and lower the tensioning wheel assembly as well as to raise and lower to open and close the rear side loading and unloading portions.
The belt limiting mechanism of the portable strapping machine according to claim 2, wherein the mounting structure of the belt limiting member is provided with a movable mounting member, and the movable mounting member is movably connected to the tensioning wheel assembly or the movable connection. The member that moves in synchronism with the tensioning wheel assembly also moves in the event of lifting and lowering on the tensioning wheel assembly.
A belt limiting mechanism for a hand strapping machine according to claim 3, wherein: between the movable mounting member and the tensioning wheel assembly or the movable mounting member and the member that moves in synchronization with the tensioning wheel assembly A guiding structure for moving the movable mounting member.
The belt limiting mechanism of the portable strapping machine according to claim 4, wherein the guiding structure comprises a guiding groove and a guiding pin, and the lifting distance of the belt limiting member connected by the movable mounting member is greater than the lifting distance of the tensioning wheel .
The belt limiting mechanism of the portable strapping machine according to claim 4, wherein the belt limiting mechanism is further provided with a return spring of the movable mounting member, and one end of the movable mounting member is limited The blockage cannot continue to rise, and is tensioned or tightened by the spring to remain in the limit position, and the movable mounting member is disposed away from the end portion to have a structure belonging to the guiding structure.
A belt limiting mechanism for a hand strapping machine according to claim 6, wherein the end of the movable mounting member that is held at the limit is tightened at the center of rotation of the rising and falling of the tensioning wheel. The opposite side of the wheel.
A belt limiting mechanism for a hand strapping machine according to claim 1, wherein a belt width adjusting block is provided inside the fixing member of the belt tensioning mechanism.
A belt limiting mechanism for a hand strapping machine according to claim 8, wherein the position of the width adjusting block in the longitudinal direction of the belt corresponds to the position at which the belt limiting member is located.
The belt limiting mechanism of the portable strapping machine according to claim 1, wherein the belt limiting member is at the tensioning wheel when the rear side loading belt and the tape taking portion are closed to limit the belt. Tighten the outer side of the belt or the outer side of the rear.