CN220131858U

CN220131858U - Hysteresis constant-torque rotary cap twisting head for cap screwing machine convenient to adjust

Info

Publication number: CN220131858U
Application number: CN202222248246.3U
Authority: CN
Inventors: 蓝景海
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-12-05
Anticipated expiration: 2032-08-25

Abstract

The utility model provides a hysteresis lag constant torque rotation turn round lid head for spiral cover machine of convenient regulation, includes back lid ejector pin, even axle thread bush, overcoat body, spring assembly, center axle sleeve, permanent magnet ring and magnetic ring, grabs the lid claw, the magnetic ring is fixed outside the center axle sleeve still include with overcoat body axial fixity and rotate the adjustment sleeve who is connected, the permanent magnet ring be fixed with overcoat body sliding connection circumference fixed cooperation cover, this adjustment sleeve and this cooperation cover threaded connection, center axle sleeve with overcoat body rotates to be connected, back lid ejector pin lower extreme cover is equipped with the support sleeve that holds in the center axle sleeve, this support sleeve with grab the lid claw and connect fixedly, this support sleeve with center axle sleeve axial fixity, this center axle sleeve lower extreme is equipped with the spacing portion that is used for restricting this support sleeve to move down.

Description

Hysteresis constant-torque rotary cap twisting head for cap screwing machine convenient to adjust

Technical Field

The utility model relates to a hysteresis constant-torque rotary cap twisting head for a cap screwing machine, which is convenient to adjust, and belongs to the technical field of cap screwing machine accessories.

Background

The cap screwing machine is also called capping machine, capping machine or cap locking machine, is used for screwing and unscrewing bottle caps after plastic bottles and glass bottles are split-packed, and is one of the main devices of an automatic filling production line, and the rotary cap twisting head is the most important part on the cap screwing machine, so that proper screwing torque must be ensured during working. The torque is too small, and the bottle cap is not tightly screwed; the bottle mouth and the bottle cap are easy to damage due to overlarge torque, and pulse impact exists or not; the pulse impact easily causes the breakage of the anti-theft ring of the bottle cap, and the bottleneck easily generates burrs.

Referring to fig. 1, chinese patent application number CN201921455877.4 discloses a hysteresis constant torque rotary twisting head for a cap screwing machine, wherein a permanent magnet ring 8 and a magnetic ring 9 form an inner ring and an outer ring, the permanent magnet ring 8 can be arranged at the inner side of the magnetic ring 9, the magnetic ring 9 can be arranged at the inner side of the permanent magnet ring 8, the positions of the permanent magnet ring 8 and the magnetic ring can be interchanged, the magnetic ring 9 is a steel magnetic sleeve, the permanent magnet ring 8 can be an integral ring body, 50-60 magnetic strips can be combined into a magnetic ring, the magnetic of the permanent magnet ring 8 can magnetize the magnetic ring 9, the magnetic ring 9 does not contain magnetism, special magnetic materials in the magnetic ring 9 can attract and repel magnetism N/S, the material of the magnetic ring 9 is ALNiCo2, in other words, the magnetic wire reflection principle is that the N of the magnetic ring 9 is refracted back to the S of the permanent magnet ring 8, so that the torque generated by the curve principle is adjusted by the contact area between the permanent magnet ring 8 and the magnetic ring 9, the larger the contact area is, the larger the torque force is, the smaller the torque force is, because the permanent magnet ring 8 is fixedly connected with the annular outer end of the central fixed connecting shaft body 3 which is positioned at the inner side of the magnetic conduction ring 9, and is fixedly connected with the inner wall of the torsion adjusting sleeve 10 which is positioned at the outer side, because the rotating thread adjusting shaft 11 is fixedly connected with the torsion adjusting sleeve 10 through threads, the contact size of the adjusting area is adjusted up and down by the torsion adjusting sleeve 10 and the rotating thread adjusting shaft 11, the personnel unscrews the fixing screw 102, then rotates the torsion adjusting sleeve 10, because of the threaded connection relation between the torsion adjusting sleeve 10 and the rotating thread adjusting shaft 11, the torsion adjusting sleeve 10 rotates and simultaneously rotates downwards, and further the permanent magnet ring 8 fixedly connected with the annular inner wall of the torsion adjusting sleeve 10 or the magnetic conduction ring 9 moves downwards relative to the central fixed connecting shaft body 6, the staggered distance of the permanent magnet ring 8 and the magnetic conducting ring 9 is adjusted, namely the contact area of the permanent magnet ring 8 and the magnetic conducting ring 9 is adjusted, the larger the staggered distance is, the smaller the contact area is, the smaller the torque force is, and the larger the torque force is, so that the torque force is adjusted.

In the prior art, when the torque force is adjusted, the cover grabbing claw moves axially along with the threaded adjusting shaft 11, so that the torque force is adjusted, and the position of the cover grabbing claw is also required to be adjusted by adjusting the torque force adjusting sleeve 10 and rotating the threaded adjusting shaft 11, so that the torque force is adjusted relatively unchanged.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the hysteresis constant-torque rotary twisting head for the cap screwing machine, which is convenient to adjust.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a hysteresis lag constant torque rotation turn round lid head for spiral cover machine of convenient regulation, includes back lid ejector pin, even axle thread bush, overcoat body, spring assembly, center axle sleeve, permanent magnet ring and magnetic ring, grabs the lid claw, the magnetic ring is fixed outside the center axle sleeve still include with overcoat body axial fixity and rotate the adjustment sleeve who is connected, the permanent magnet ring be fixed with overcoat body sliding connection circumference fixed cooperation cover, this adjustment sleeve and this cooperation cover threaded connection, center axle sleeve with overcoat body rotates to be connected, back lid ejector pin lower extreme cover is equipped with the support sleeve that holds in the center axle sleeve, this support sleeve with grab the lid claw and connect fixedly, this support sleeve with center axle sleeve axial fixity, this center axle sleeve lower extreme is equipped with the spacing portion that is used for restricting this support sleeve to move down.

In one embodiment of the utility model, the annular outer end of the cap-withdrawing ejector rod is provided with a positioning sleeve, the connecting shaft threaded sleeve is fixedly provided with a positioning sleeve, the middle part of the central shaft sleeve is provided with a spring supporting step, and the spring assembly comprises a first compression spring positioned between the limiting plate and the supporting sleeve and a second compression spring positioned between the spring supporting step and the supporting sleeve.

In one embodiment of the utility model, the decapping top rod passes through the support sleeve and the gripping claw.

In one embodiment of the present utility model, a first bearing is disposed between the upper end of the central shaft sleeve and the outer casing, and a second bearing is disposed between the lower end of the central shaft sleeve and the adjusting sleeve. Through setting up two bearings, support the center axle sleeve, shake when can reducing the center axle sleeve rotation.

In one embodiment of the utility model, the upper end of the adjusting sleeve is provided with an inward-extending anti-drop limiting ring, the middle part of the outer peripheral surface of the central shaft sleeve is provided with a limiting step matched with the anti-drop limiting ring, the outer peripheral surface of the supporting sleeve is provided with a plurality of axial limiting grooves extending downwards from the middle part of the supporting sleeve shaft, the limiting part is provided with limiting protrusions accommodated in the axial limiting grooves, the lower end of the axial limiting grooves is sealed by the cover grabbing claw, the limiting part is fixedly connected with the central shaft sleeve, the limiting part is provided with a blocking part extending towards the lower surface of the second bearing, and the lower end of the adjusting sleeve is provided with a mounting groove for accommodating the second bearing.

In one embodiment of the utility model, the adjusting sleeve is provided with a torsion part positioned below the lower end surface of the outer sleeve body, and the cover grabbing claw is in threaded connection with the supporting sleeve. The torsion part is arranged to rotate the torsion part conveniently.

In one embodiment of the utility model, the outer circumferential surface of the supporting sleeve is provided with a first sealing groove for accommodating a first sealing ring, the inner circumferential surface of the supporting sleeve is provided with a second sealing groove for accommodating a second sealing ring, the first sealing ring is used for sealing the supporting sleeve and the central shaft sleeve, and the second sealing ring is used for sealing the supporting sleeve and the cover-withdrawing ejector rod. The first sealing ring and the second sealing ring are arranged to prevent lubricating grease from leaking.

In one embodiment of the utility model, the magnetic conducting ring is a magnetic steel sleeve, the permanent magnetic ring comprises an even number of rectangular magnetic strips, and a plurality of magnetic strips are vertically arranged and are annularly arranged, and the magnetic poles of adjacent magnetic strips are different.

In one embodiment of the utility model, the permanent magnet ring is fixed with a connecting sleeve which is in threaded connection with the central shaft sleeve.

In one embodiment of the utility model, the outer sleeve body is provided with a bearing supporting ring for supporting the lower surface of the first bearing, the connecting shaft threaded sleeve is propped against the upper surface of the first bearing, the upper end of the central shaft sleeve is provided with a clamp spring groove for accommodating a clamp spring, the clamp spring groove accommodates the clamp spring matched with the upper surface of the first bearing, the central shaft sleeve is also provided with a limit step matched with the lower surface of the first bearing, the outer circumferential surface of the adjusting sleeve is provided with a locking annular groove, the outer sleeve body is in threaded connection with a first screw inserted into the locking annular groove, the outer surface of the matching sleeve is provided with a guiding axial groove, the outer sleeve body is in threaded connection with a second screw inserted into the guiding axial groove, the number of the first screws is multiple, the number of the guiding axial grooves is multiple, and the bottom of the locking annular groove is provided with a plurality of locking recesses for accommodating the end parts of the first screw. The first screw can be screwed down to match with the locking recess to prevent the adjusting sleeve from rotating.

The utility model has the beneficial effects that: the permanent magnet ring is fixed with a matched sleeve which is fixedly connected with the outer sleeve body in a sliding way in the circumferential direction, the adjusting sleeve is in threaded connection with the matched sleeve, and a user can conveniently adjust the superposition area of the permanent magnet ring and the magnetic conducting ring through rotating the adjusting sleeve so as to adjust the torsion extremum.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic diagram of a conventional hysteresis constant torque rotary capping head for capping machine.

Fig. 2 is a sectional view of a hysteresis constant torque rotary twist cap head for a cap screwing machine which is convenient to adjust according to a first embodiment of the present utility model.

Fig. 3 is an exploded view of the hysteresis constant torque rotary twist cap for the easy-to-adjust cap screwing machine of fig. 2.

Fig. 4 is a schematic structural view of the adjusting sleeve of fig. 3.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 2-4, the present utility model provides a technical solution: the utility model provides a hysteresis lag constant torque rotation turn round lid head for spiral cover machine of convenient regulation, including moving back lid ejector pin 1, even axle thread bush 21, outer sleeve body 2, spring assembly, center axle sleeve 3, permanent magnet ring 31 and magnetic conduction circle 41, grab lid claw 51, magnetic conduction circle 41 is fixed outside center axle sleeve 3, still include with outer sleeve body 2 axial fixity and rotate the adjustment sleeve 6 of being connected, permanent magnet ring 31 is fixed with the cooperation cover 4 of outer sleeve body 2 sliding connection circumference fixed, adjustment sleeve 6 and cooperation cover 4 threaded connection, center axle sleeve 3 and outer sleeve body 2 rotation are connected, move back lid ejector pin 1 lower extreme cover is equipped with the supporting sleeve 5 of holding in center axle sleeve 3, supporting sleeve 5 and grab lid claw 51 are connected fixedly, supporting sleeve 5 and center axle sleeve 3 axial fixity, center axle sleeve 3 lower extreme is equipped with the spacing portion 32 that is used for restricting supporting sleeve 5 to move down.

The connecting shaft thread sleeve 21 is fixedly provided with a positioning sleeve 211, the annular outer end of the cap withdrawing ejector rod 1 is fixedly provided with a limiting plate 11, the limiting plate 11 is arranged at the lower end of the positioning sleeve 211, the middle part of the central shaft sleeve 3 is provided with a spring supporting step 3a, and the spring assembly comprises a part positioned between the limiting plate 11 and the supporting sleeve 5

And a second compression spring 72 located between the spring support step 3a and the support sleeve 5.

The cap-withdrawing ejector rod 1 passes through the supporting sleeve 5 and the cap-grasping claw 51.

A first bearing 81 is arranged between the upper end of the central shaft sleeve 3 and the outer sleeve body 2, and a second bearing 82 is arranged between the lower end of the central shaft sleeve 3 and the adjusting sleeve 6. By providing two bearings, the center bushing 3 is supported, and shake when the center bushing 3 rotates can be reduced.

The adjusting sleeve 6 upper end is equipped with inwards extending anti-drop spacing ring 6a, center axle sleeve 3 outer peripheral face middle part be equipped with anti-drop spacing ring 6a complex spacing step 3b, a plurality of axial spacing recess 501 downwardly extending from support sleeve 5 axle middle part have been seted up to support sleeve 5 outer peripheral face, spacing portion 32 is equipped with the spacing arch 32a that holds in axial spacing recess 501, grab the lid claw 51 and seal axial spacing recess 501 lower extreme, spacing portion 32 is connected fixedly with center axle sleeve 3, spacing portion 32 is equipped with towards the blocking part 32b of second bearing 82 lower surface extension, adjusting sleeve 6 lower extreme is equipped with the mounting groove that holds second bearing 82.

The adjusting sleeve 6 is provided with a torsion part 6a positioned below the lower end surface of the outer sleeve body 2, and the cover grabbing claw 51 is in threaded connection with the supporting sleeve 5. The torsion part 6a is provided to facilitate rotation of the torsion part 6a.

The outer peripheral surface of the supporting sleeve 5 is provided with a first sealing groove for accommodating a first sealing ring 91, the inner peripheral surface of the supporting sleeve 5 is provided with a second sealing groove for accommodating a second sealing ring 92, the first sealing ring 91 is used for sealing the supporting sleeve 5 and the central shaft sleeve 3, and the second sealing ring 92 is used for sealing the supporting sleeve 5 and the cover-withdrawing ejector rod 1. The first seal ring 91 and the second seal ring 92 are provided to prevent leakage of lubricating grease.

The magnetic ring 41 is a magnetic steel sleeve, the permanent magnet ring 31 comprises an even number of rectangular magnetic strips, and the magnetic strips are vertically arranged and annularly arranged, and the magnetic poles of the adjacent magnetic strips are different.

The permanent magnet ring 31 is fixed with a connecting sleeve 33, and the connecting sleeve 33 is in threaded connection with the central shaft sleeve 3.

The outer sleeve body 2 is provided with a bearing supporting ring 2a for supporting the lower surface of the first bearing 81, the connecting shaft threaded sleeve 21 abuts against the upper surface of the first bearing 81, the upper end of the central shaft sleeve 3 is provided with a clamp spring groove for containing clamp springs, the clamp spring groove contains clamp springs 30 for being matched with the upper surface of the first bearing 81, the central shaft sleeve 3 is further provided with a limit step 3b matched with the lower surface of the first bearing 81, the outer peripheral surface of the adjusting sleeve 6 is provided with a locking annular groove, the outer sleeve body 2 is in threaded connection with a first screw 301 inserted into the locking annular groove, the outer surface of the matching sleeve 4 is provided with a guide axial groove 40, the outer sleeve body 2 is in threaded connection with a second screw 302 inserted into the guide axial groove 40, the number of the first screws 301 is multiple, the number of the axial grooves 40 is multiple, and the bottom of the locking annular groove is provided with a plurality of locking recesses 601 for containing the end parts of the first screw 301. The first screw 301 can be tightened to engage the locking recess 601 preventing rotation of the adjustment sleeve 6.

The utility model has the beneficial effects that: the permanent magnet ring 31 is fixed with a matching sleeve 4 which is fixedly connected with the outer sleeve body 2 in a sliding way in the circumferential direction, the adjusting sleeve 6 is connected with the matching sleeve 4 in a threaded way, and a user can conveniently adjust the superposition area of the permanent magnet ring 31 and the magnetic conducting ring 41 through rotating the adjusting sleeve 6 so as to adjust the torsion extremum.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a hysteresis lag constant torque rotation turn round lid head for spiral cover machine of convenient regulation, includes back lid ejector pin, even axle thread bush, overcoat body, spring assembly, center axle sleeve, permanent magnet ring and magnetic ring, grabs the lid claw, its characterized in that, magnetic ring is fixed outside the center axle sleeve, still include with overcoat body axial fixity and rotate the adjustment sleeve who is connected, the permanent magnet ring be fixed with the cooperation cover of overcoat body sliding connection circumference fixed, this adjustment sleeve and this cooperation cover thread connection, center axle sleeve with overcoat body rotates to be connected, back lid ejector pin lower extreme cover is equipped with the support sleeve that holds in the center axle sleeve, this support sleeve with grab the lid claw and connect fixedly, this support sleeve with center axle sleeve axial fixity, this center axle sleeve lower extreme is equipped with the spacing portion that is used for restricting this support sleeve and moves down.

2. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 1, characterized in that: the connecting shaft threaded sleeve is fixedly provided with a positioning sleeve, a limiting plate is fixed at the annular outer end of the cap-withdrawing ejector rod, the limiting plate is arranged at the lower end of the positioning sleeve, a spring supporting step is arranged in the middle of the central shaft sleeve, and the spring assembly comprises a first compression spring positioned between the limiting plate and the supporting sleeve and a second compression spring positioned between the spring supporting step and the supporting sleeve.

3. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 2, characterized in that: the cover withdrawing top rod passes through the support sleeve and the cover grabbing claw.

4. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 3, wherein: a first bearing is arranged between the upper end of the central shaft sleeve and the outer sleeve body, and a second bearing is arranged between the lower end of the central shaft sleeve and the adjusting sleeve.

5. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 4, wherein: the upper end of the adjusting sleeve is provided with an inward-extending anti-drop limiting ring, the middle part of the outer circumferential surface of the central shaft sleeve is provided with a limiting step matched with the anti-drop limiting ring, the outer circumferential surface of the supporting sleeve is provided with a plurality of axial limiting grooves which extend downwards from the middle part of the supporting sleeve shaft, the limiting part is provided with a limiting protrusion which is accommodated in the axial limiting groove, the cover grabbing claw seals the lower end of the axial limiting groove, the limiting part is fixedly connected with the central shaft sleeve, the limiting part is provided with a blocking part which extends towards the lower surface of the second bearing, and the lower end of the adjusting sleeve is provided with an installation groove which accommodates the second bearing.

6. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 5, wherein: the adjusting sleeve is provided with a torsion part positioned below the lower end face of the outer sleeve body, and the cover grabbing claw is in threaded connection with the supporting sleeve.

7. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 6, wherein: the outer peripheral surface of the supporting sleeve is provided with a first sealing groove for accommodating a first sealing ring, the inner peripheral surface of the supporting sleeve is provided with a second sealing groove for accommodating a second sealing ring, the first sealing ring is used for sealing the supporting sleeve and the central shaft sleeve, and the second sealing ring is used for sealing the supporting sleeve and the cover-withdrawing ejector rod.

8. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 7, wherein: the magnetic conduction ring is a magnetic steel sleeve, the permanent magnetic ring comprises an even number of rectangular magnetic strips, a plurality of magnetic strips are vertically arranged and are annularly arranged, and the magnetic poles of adjacent magnetic strips are different.

9. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 8, wherein: and the permanent magnet ring is fixed with a connecting sleeve which is in threaded connection with the central shaft sleeve.

10. The hysteresis constant torque rotary twist cap for a cap screwing machine convenient to adjust according to claim 9, characterized in that: the outer sleeve is provided with a bearing supporting ring used for supporting the lower surface of the first bearing, the connecting shaft threaded sleeve is propped against the upper surface of the first bearing, the upper end of the central shaft sleeve is provided with a clamp spring groove containing clamp springs, the clamp spring groove contains clamp springs used for being matched with the upper surface of the first bearing, the central shaft sleeve is further provided with a limiting step matched with the lower surface of the first bearing, the outer circumferential surface of the adjusting sleeve is provided with a locking annular groove, the outer sleeve is in threaded connection with a first screw inserted into the locking annular groove, the outer surface of the matching sleeve is provided with a guiding axial groove, the outer sleeve is in threaded connection with a second screw inserted into the guiding axial groove, the number of the first screws is multiple, the number of the guiding axial grooves is multiple, and the bottom of the locking annular groove is provided with a plurality of locking recesses used for containing the end parts of the first screw.