CN212131230U

CN212131230U - Linear reciprocating motion mechanism and needling machine

Info

Publication number: CN212131230U
Application number: CN202020271728.9U
Authority: CN
Inventors: 王浦国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-12-11
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a straight reciprocating motion mechanism and needle loom, the utility model discloses a straight reciprocating motion mechanism includes the swinging arms of at least a pair of two liang of relative settings, one end at the swinging arms is provided with the shaft hole, the other end is provided with the pinhole, the eccentric drive shaft that is provided with in the shaft hole, the direction of turning to of drive shaft in the swinging arms of relative setting is opposite, straight reciprocating motion mechanism is still including removing seat and guide part, with the corresponding round pin axle that is provided with of swinging arms in removing the seat, the round pin axle passes the pinhole of swinging arms, the pin rotation can be sold relatively to the swinging arms, it can be straight reciprocating motion under the drive of swinging arms to remove the seat, the guide part is used for leading to the moving direction who removes the seat, the guide part still includes that quantity is no more than one guide connecting. The utility model discloses a straight reciprocating motion mechanism need not to set up the uide bushing, can not appear the problem of oil leak, and it only needs to set up single guide connecting rod at most, and the structure is simpler, can realize more steady straight reciprocating motion's effect.

Description

Linear reciprocating motion mechanism and needling machine

Technical Field

The utility model relates to a needle loom technical field, concretely relates to straight reciprocating motion mechanism and needle loom.

Background

The needle-punched nonwoven fabric is a nonwoven fabric having a certain strength formed by repeatedly and high-frequency needle-punching web-formed fibers by a needle-punching technique. Currently, in actual production, most needling processes are completed by a needling machine. In the existing needle machine, a plurality of felting needles are arranged on a needle beam seat, and the needle operation is realized under the vertical vibration of the needle beam seat.

Generally, the up-down vibration frequency of the needle beam seat can reach up to 1000-2000 times/minute, so in order to ensure the stable moving process of the needle beam seat, a guide rod needs to be arranged on the needle beam seat, a guide sleeve is arranged outside the guide rod, in order to reduce the heat generated by friction between the guide rod and the guide sleeve, cooling lubricating oil needs to be filled between the guide rod and the guide sleeve, and oil seals are arranged at two ends of the guide sleeve.

At present, the up-and-down reciprocating motion of the needle beam base is also realized by a guide mechanism using an eccentric connecting rod and a double rocker, as shown in the attached drawing 1, the mechanism is characterized in that a guide connecting rod is respectively arranged at the left side and the right side of the needle beam base, racks are respectively arranged at one ends of the guide connecting rods far away from the needle beam base, and guide racks are respectively arranged corresponding to the racks at the tail ends of the guide connecting rods. Therefore, the needle beam seat can reciprocate up and down under the matching of the guide rack and the rack at the tail end of the rocker. Although this kind of structure no longer need set up the uide bushing, but this kind of structure must set up two rockers and need with it corresponding two sets of racks that set up, the structure is comparatively complicated, moreover, just because the structure of this kind of two rockers for in needle beam seat up-and-down motion process, the stationarity is not enough, and the atress of direction connecting rod is great, therefore makes the whole easy emergence of mechanism rock, is unfavorable for the acupuncture process.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a linear reciprocating motion mechanism and needle loom including it, the utility model discloses a linear reciprocating motion mechanism no longer sets up the uide bushing, and it only sets up single direction connecting rod, and the structure is simpler, and the process is more steady when carrying out linear reciprocating motion, the utility model discloses a degree of cooperation between its inside each spare part of during operation of linear reciprocating motion mechanism is high, and resistance between each other is little.

The utility model discloses a straight reciprocating motion mechanism includes the swinging arms of two liang at least relative settings the one end of swinging arms is provided with the shaft hole, and the other end is provided with the pinhole the eccentric drive shaft that is provided with in the shaft hole sets up relatively in the swinging arms the turning to of drive shaft is opposite, straight reciprocating motion mechanism still including removing seat and guide part remove in the seat with the corresponding round pin axle that is provided with of swinging arms, the round pin axle passes the pinhole of swinging arms, the swinging arms can be relative the round pin axle is rotatory, it can to remove the seat be straight reciprocating motion under the drive of swinging arms, the guide part be used for right the moving direction who removes the seat leads, the guide part still includes that quantity is no longer than a guide connecting rod. The utility model discloses a straight reciprocating motion mechanism need not to use the guide pin bushing when carrying out straight reciprocating motion to only set up single direction connecting rod, therefore made its simple structure, and increased this straight reciprocating motion mechanism's the stationarity when carrying out straight reciprocating motion.

Furthermore, the guide part comprises arc-shaped racks arranged at one end, provided with the pin holes, of the swinging rod, and the arc-shaped racks connected to the swinging rod, which are oppositely arranged, are meshed with each other. Therefore, realize the linear reciprocating motion who removes the seat under the intermeshing of the arc rack of being connected with two swinging arms, just the utility model discloses a linear reciprocating motion mechanism no longer sets up the direction connecting rod, therefore makes its overall structure simpler, and the arc rack that is located in the middle of two swinging arms makes the utility model discloses a mechanism is steady carrying out the reciprocating motion process, and the interaction force between two arc racks is less, makes the utility model discloses a linear reciprocating motion mechanism has better stability and longer life.

Furthermore, the end of each of the two swing levers, at which the pin hole is provided, has a connecting arm extending toward each other, and the arc-shaped rack is provided on the side of the connecting arms of the two swing levers that are close to each other.

Furthermore, the gear rack further comprises a rubber sleeve arranged outside the arc-shaped gear rack, and lubricating oil is filled in the rubber sleeve. Can ensure the lubrication of the arc rack on two swinging arms from this, the rubber sleeve can also prevent dust, fibre, pollution grease etc. to cause wearing and tearing to the arc rack, and makes the utility model discloses a straight reciprocating motion mechanism is carrying out straight reciprocating motion process steadily.

Furthermore, the guide part comprises a guide connecting rod, the guide connecting rod is located on any one side of the movable seat and close to the guide connecting rod, the pin shaft is connected with the guide connecting rod, an adjusting shaft hole is formed in one end, far away from the pin shaft, of the guide connecting rod, an adjusting shaft is eccentrically arranged in the adjusting shaft hole, and the central axis of the adjusting shaft hole is parallel to the pin shaft. The utility model discloses a straight reciprocating motion mechanism has only set up a direction connecting rod, makes its structure complexity greatly reduced, the utility model discloses a straight reciprocating motion mechanism sets up the regulation shaft hole through the end at the direction connecting rod to eccentric setting regulating spindle in it, from this, when the drive shaft eccentrically rolls in the shaft hole, the regulating spindle eccentrically rolls in the regulating shaft hole, realizes the straight reciprocating motion who removes the seat under the mutually supporting of swinging arms and direction connecting rod.

Further, the direction connecting rod be with when the direction of motion of removing the seat is perpendicular, the axis of regulating spindle the axis in regulating spindle hole with the axis of round pin axle is on the coplanar, just the regulating spindle with the internal tangent line in regulating spindle hole with the distance that removes the seat is at the perpendicular to the projection distance of the direction of motion of removing the seat is the biggest.

Furthermore, the central axis of the adjusting shaft hole and the central axis of the pin shaft connected with the guide connecting rod are on the same plane and are perpendicular to the moving direction of the moving seat.

The utility model also provides a needle loom, it contains aforementioned straight reciprocating motion mechanism. The utility model discloses a needle loom need not to set up the direction connecting rod respectively in the both sides of needle roof beam case for needle loom's structure is more simple, and the acupuncture process is steady, has reduced accumulative error, has also reduced the processing cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural view of a reciprocating mechanism of a needle beam seat of a needle machine in the background art of the present invention;

fig. 2 is a schematic structural diagram of a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention in a first state;

fig. 4 is a schematic structural diagram of a second embodiment of the present invention in a second state;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention in a third state;

fig. 6 is a schematic structural diagram of a second embodiment of the present invention in a fourth state.

In the figure, the position of the upper end of the main shaft,

1-swinging rod, 11-shaft hole, 12-pin hole, 2-driving shaft, 3-moving seat, 31-pin shaft, 41-arc rack, 42-rubber sleeve, 5-guide connecting rod, 51-adjusting shaft hole and 6-adjusting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 2, the utility model discloses a straight reciprocating motion mechanism is including two swinging arms 1 that set up relatively, is provided with columniform shaft hole 11 in the upper end of swinging arm 1, and the lower extreme is provided with pinhole 12, and shaft hole 11 is parallel to each other with the axis of pinhole 12, and the eccentric drive shaft 2 that is provided with in shaft hole 11, drive shaft 2 and swinging arm 1 mutually perpendicular set up, and drive shaft 2 can roll along the inside wall in shaft hole 11, and the rotation direction of drive shaft 2 in the swinging arm 1 of relative setting is opposite.

The utility model discloses a straight reciprocating motion mechanism is still including removing seat 3 and guide part, and the round pin axle 31 that is provided with that corresponds respectively with every swinging arms 1 in removing seat 3, round pin axle 31 and the mutual parallel arrangement of drive shaft 2, the utility model discloses a two round pin axles 31 mutual parallel arrangement just set up highly uniform. The pin 31 passes through the pin hole 12 of the swing lever 1, and the swing lever 1 can rotate relative to the pin 31. The guide portion of the present embodiment includes arc-shaped racks 41 provided at one end of the swing lever 1 where the pin hole 12 is provided, and the arc-shaped racks 41 connected to the swing lever 1 disposed opposite to each other are engaged with each other. At the lower ends of the two oscillating levers 1, connecting arms 13 are provided which extend towards each other, and arc-shaped racks 41 are provided on the sides of the connecting arms 13 of the two oscillating levers 1 which are close to each other. Therefore, when the driving shaft 2 rotates, the swing levers 1 swing, and the forces of the two swing levers 1 in the horizontal direction are offset by the arc-shaped rack 41 located in the middle of the two swing levers 1, thereby achieving the up-and-down reciprocating motion of the movable base 3. The angular variation that two arc racks 41 take place is little in the up-and-down motion process of removing seat 3, therefore can ensure that the process of reciprocating of removing seat 3 is steady, in addition, because the lower extreme of swinging arms 1 articulates on round pin axle 31, therefore for the centre-to-centre spacing of two arc racks 41 is fixed unchangeable, and arc rack 41 is when removing seat 3 and remove the process and take place the angular variation, and the atress each other of two arc racks 41 is also less, ensures from this the utility model discloses a straight reciprocating motion mechanism has longer life. In addition, the linear reciprocating mechanism of the embodiment does not need to arrange guide connecting rods on two sides of the moving seat 3, and does not need to arrange racks at the end parts of the guide connecting rods, so that the structure is simpler.

The linear reciprocating mechanism in this embodiment further includes a rubber sleeve 42 disposed outside the arc-shaped rack 41, and lubricating oil is filled in the rubber sleeve 42. Therefore, the arc-shaped racks 41 connected to the two oscillating rods 1 can be sufficiently lubricated, the rubber sleeve 42 can prevent the arc-shaped racks 41 from being polluted by dust, fibers, grease and the like to influence the normal operation of the linear reciprocating mechanism of the embodiment, and the linear reciprocating mechanism has longer service life.

Example two:

referring to fig. 3 to 6, the present embodiment is different from the first embodiment in that the guide portion is not provided with the arc-shaped racks engaged with each other at the lower end portions of the two swing levers 1, but a guide link 5 is provided at any one side surface of the moving base 3, and the guide link 5 is connected to the pin 31 nearest thereto. The guide link 5 illustrated in this embodiment is provided on the right side of the movable base 3, the left end of the guide link 5 is connected to the right pin 31 in the movable base 3, and the guide link 5 is rotatable with respect to the pin 31. An adjusting shaft hole 51 is formed in the right end of the guide connecting rod 5, an adjusting shaft 6 is eccentrically arranged in the adjusting shaft hole 51, the adjusting shaft 6 is perpendicular to the guide connecting rod 5, and the central axis of the adjusting shaft hole 51 is parallel to the pin shaft 31.

Referring to fig. 3, when the driving shafts 2 in the shaft holes 11 of the two swing levers 1 rotate in opposite directions indicated by arrows in the drawing, and when the distance between the two driving shafts 2 is minimum in the left-right direction (i.e., when the upper ends of the two driving shafts 2 approach each other), and the guide link 5 is perpendicular to the movement direction of the moving base 3 (i.e., parallel to the horizontal plane), the central axis of the adjusting shaft 6, the central axis of the adjusting shaft hole 51, and the central axis of the pin 31 are all on the same plane and parallel to the horizontal plane, and the adjusting shaft 6 is inscribed in the rightmost end of the inner surface of the adjusting shaft hole 51.

Referring to fig. 4, as the driving shaft 2 rotates relatively, the swing lever 1 swings gradually to be perpendicular to the horizontal plane, the driving shaft 2 rolls gradually to the lowermost end of the shaft hole 11 along the inner sidewall of the shaft hole 11, the left end of the guide link 5 rotates upward, and at the same time, the adjusting shaft 6 rolls gradually leftward and downward along the inner sidewall thereof from the lowermost end thereof in the adjusting shaft hole 51.

Referring to fig. 5, when the distance between the two driving shafts 2 is the largest in the left-right direction according to the relative rotation of the driving shafts 2, the guide link 5 is parallel to the horizontal plane again, and the adjusting shaft 6 and the adjusting shaft hole 51 are inscribed in the rightmost end of the inner surface of the adjusting shaft hole 51 again.

Referring to fig. 6, as the driving shaft 2 continues to rotate relatively, the swing lever 1 is again gradually swung to be perpendicular to the horizontal plane, at which time the driving shaft 2 gradually rolls along the inner sidewall of the shaft hole 11 to the uppermost end of the shaft hole 11, the left end of the guide link 5 rotates downward, and at the same time, the adjusting shaft 6 gradually rolls upward leftward from the rightmost end thereof along the inner sidewall thereof in the adjusting shaft hole 51.

As such, the linear reciprocating mechanism in the present embodiment is reciprocated in the four states of fig. 3 to 6, thereby achieving the reciprocating movement of the movable base 3 in the direction perpendicular to the horizontal plane.

Example three:

in this embodiment, the needle loom in this embodiment uses the moving seat 3 in the first embodiment and the second embodiment as the needle beam seat, and the needle beam seat is driven by the linear reciprocating mechanism in the first embodiment or the second embodiment to reciprocate in the direction perpendicular to the horizontal plane to complete the needle punching operation. The needle loom of this embodiment need not to set up the uide bushing, the problem of oil blanket oil leak can not appear, and the needle loom of this embodiment only need set up single direction connecting rod at most, and the structure is simpler, and when carrying out the acupuncture, the needle loom work is more steady, and the wearing and tearing between each spare part are little.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. The utility model provides a straight reciprocating motion mechanism, its characterized in that includes at least a pair of two liang of swinging arms that set up relatively the one end of swinging arm is provided with the shaft hole, and the other end is provided with the pinhole the eccentric drive shaft that is provided with in the shaft hole sets up relatively in the swinging arm the direction of turning to of drive shaft is opposite, straight reciprocating motion mechanism still including removing seat and guide part remove in the seat with the corresponding round pin axle that is provided with of swinging arm, the round pin axle passes the pinhole of swinging arm, the swinging arm can be relative the round pin axle is rotatory, it can be in to remove the seat be straight reciprocating motion under the drive of swinging arm, the guide part is used for right the moving direction who removes the seat leads, the guide part still includes the guide link that quantity is no more than one.

2. The linear reciprocating mechanism according to claim 1, wherein the guide portion includes an arc-shaped rack provided at an end of the oscillating lever where the pin hole is provided, and the arc-shaped racks connected to the oppositely provided oscillating levers are engaged with each other.

3. The linear reciprocating mechanism according to claim 2, wherein the two swing levers have connecting arms extending toward each other at the ends thereof where the pin holes are provided, and the arc-shaped rack is provided on the sides of the connecting arms of the two swing levers that are close to each other.

4. The mechanism according to claim 3, further comprising a rubber sleeve disposed outside the arc-shaped rack, wherein the rubber sleeve is filled with a lubricating oil.

5. The mechanism as claimed in claim 1, wherein the guide part comprises a guide link rod, the guide link rod is located at any side of the movable base and connected to the pin near the guide link rod, an adjustment shaft hole is formed at an end of the guide link rod away from the pin, an adjustment shaft is eccentrically disposed in the adjustment shaft hole, and a central axis of the adjustment shaft hole is parallel to the pin.

6. The mechanism of claim 5, wherein when the guiding rod is perpendicular to the moving direction of the moving base, the central axis of the adjusting shaft hole and the central axis of the pin shaft are on the same plane, and a projection distance between an inner tangent line of the adjusting shaft and the adjusting shaft hole and the moving base is the largest in the direction perpendicular to the moving direction of the moving base.

7. The mechanism of claim 5, wherein the two pins are parallel to each other, and the central axis of the adjustment shaft hole and the central axis of the pin connected to the guide link are on the same plane and perpendicular to the moving direction of the moving base.

8. A needle loom comprising a linear reciprocating mechanism according to any one of claims 1 to 7.