CN203686024U

CN203686024U - Cam driving device of disposable sanitary product

Info

Publication number: CN203686024U
Application number: CN201320534715.6U
Authority: CN
Inventors: 雷霄
Original assignee: Anqing Hengchang Machinery Co Ltd
Current assignee: Anqing Hengchang Machinery Co Ltd
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-07-02
Anticipated expiration: 2023-08-29

Abstract

The utility model discloses a cam driving device of a disposable sanitary product. The cam driving device comprises a ring-shaped cam disc, a guiding wheel and a rocker arm, wherein the inner ring of the cam disc is sleeved on a fixing shaft through a key or a screw; a circularly encircled guiding groove is formed in the outer circumferential surface of the cam disc; the cam disc is provided with a bulge in the axis direction; one end of the guiding wheel is distributed in the guiding groove, and the other end of the guiding wheel is connected with a driven workpiece through the rocker arm. The cam driving device disclosed by the utility model adopts the design characteristics of a double-groove reducing cam, compared with a traditional single-groove cam, the cam driving device has the advantage that the service life of a bearing of the cam can be obviously prolonged, and compared with a traditional double-groove cam, the cam driving device has the advantages that the amount of machining is reduced, the machining difficulty is lowered, and the requirements on machining equipment, cutting tools and machining methods are obviously lowered.

Description

A kind of cam driving gear of disposable sanitary articles

Technical field

The utility model relates to disposable sanitary articles manufacturing mechanism and manufactures field, especially relates to a kind of cam driving gear of disposable sanitary articles.

Background technique

Cam can be defined as parts with curved surface or crank slot, utilizes its swing or revolution, can make another assembly-follower that predefined motion is provided.The large portion in path of follower is limited in a chute, to obtain toward covering motion.In the stroke of its reply, sometimes rely on the weight of itself, but some mechanism obtains definite action, the often power using spring as reply, some utilizes guide groove, and it is moved on specific path.

In disposable sanitary articles manufacture process because the layout of product processes, more or less need the semi-finished product conveying that commutates, commutation is carried and is generally all applied to cam driving gear, the cam that traditional cam driving gear has single guide wheel rocking arm and coordinates with it, cam has left and right two groove faces that coordinate with camshaft bearing.Single camshaft bearing of groove cam and the left and right groove face Spielpassung of cam path, camshaft bearing rocking in gap all can cause the empty pendulum of rocking arm, camshaft bearing contacts with two groove faces cam path that replace in the time that camshaft line is made circular-rotation, camshaft bearing exists and impacts at the Contact of conversion groove face, and bearing rotary direction also because of from the contact checker of different groove faces, these all cause camshaft bearing easy to wear and lost efficacy.Publication number is that CN1351234A cam gear illustrates a kind of double-slot cam structure in addition, it on the periphery of cam from outside to inside, two guide grooves are set, an one shallow dark guide groove forms 4 groove faces altogether, the axial direction that one of them groove face also prolongs cam stretches out to inside, this not competent processing of step universal cutter extending internally, the groove inwardly stretching out in addition has also weakened the intensity of the cam disk ancient piece of jade, round, flat and with a hole in its centre for carrying upper strata cam, and this kind of structure also defines guide wheel and can only use the bearing of two same diameter in addition.

Model utility content

The purpose of this utility model is the problem that solves above-mentioned existence, and the cam driving gear of a kind of disposable sanitary articles that delays camshaft bearing wearing and tearing simple in structure, easy to use is provided.

The purpose of this utility model realizes as follows: a kind of cam driving gear of disposable sanitary articles, there is the cam disk of ring, and its inner ring is socketed on stationary axle by key or screw; Also there is guide wheel and rocking arm, the outer peripheral surface of described cam disk have circulation around guide groove, and there is projection on the axial direction of described cam disk; One end of described guide wheel is distributed in guide groove, and its other end is connected with being driven workpiece by rocking arm.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described guide wheel has large bearing, little bearing, guide wheel shaft and axle sleeve, and described large bearing, axle sleeve and little bearing are arranged on the guide wheel shaft with step successively, and the end of described guide wheel shaft has screw thread.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described guide wheel at least has two groups, and decile is arranged on the excircle of cam disk.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described guide wheel has the configuration of six groups, eight groups or ten groups any amount.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described rocking arm is " Z " font, on two horizontal edge, respectively there is a mounting hole, in a mounting hole of described guide wheel shaft end insertion rocking arm and by nut locking, the another one mounting hole of described rocking arm is fixedly connected with driving workpiece.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described rocking arm, is improved to hypotenuse structure for connecting two vertical edges that horizontal edges are installed.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described cam disk has secondary guide groove from periphery to inner ring direction, two guide grooves have shared the first groove face, the second groove face of an other side and the 3rd groove face form step, and the width of outside the second groove face and the first groove face is greater than the width of inner the 3rd groove face.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, the periphery of described large bearing all the time with the first groove face Surface Contact, the outer peripheral surface of described little bearing contacts with the second groove face all the time, the rotation direction separately of large bearing and little bearing is fixed, rotation direction is contrary.

The cam driving gear of above-mentioned a kind of disposable sanitary articles, described guide groove has four sections of projections, is respectively guide groove horizontal segment, and guide groove promotes tilting section, guide groove projection horizontal segment and guide groove decline tilting section.

Advantage of the present utility model: 1, cam driving gear of the present utility model adopts the design feature of double-slot cam can significantly improve the working life of camshaft bearing compared with tradition list groove cam;

2, two of double-slot cam camshaft bearings contact all the time with the one side of a guide groove in double flute separately, and the fixing rotation direction of the each self-sustaining of camshaft bearing is constant, the life-span of having improved cam and guide wheel;

3,, compared with existing double-slot cam, by original double step, four sides guide groove is improved to 3, separate unit rank guide groove face, has reduced by a complicated processing face, has reduced amount of finish, has reduced difficulty of processing.

4, the vertical edge of the rocking arm of conventional " Z " font is improved to hypotenuse, in the case of the centre distance of the mounting hole of two horizontal edges is constant, has strengthened wall thickness and the intensity of rocking arm, make the competent more high pulling torque that carries.

5, another important result of double-slot cam is that the quality of fit of guide wheel bearing and cam path is improved, double-cam bearing separately monolateral contact all the time substitutes the Spielpassung that single camshaft holds, reduce the sky pendulum stroke that is driven workpiece in the time doing commutation rotation, hysteresis and shaking phenomenon when elimination rocking arm is made divertical motion, effectively improve rocking arm and make 90 ° of precision that turn to.

Brief description of the drawings

For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is structural representation of the present utility model;

Fig. 2 is sectional view of the present utility model;

Fig. 3 is cam path partial sectional view of the present utility model;

Fig. 4 is the plane outspread drawing of cam path;

Reference character: 1, cam disk, 2, guide wheel, 3, rocking arm, 4, guide groove, 5, driven workpiece, 6, the first groove face, 7, the second groove face, 8, the 3rd groove face, 9, the first mounting hole, 10, the second mounting hole, 21, large bearing, 22, little bearing, 23, guide wheel shaft, 24, axle sleeve, L, guide groove horizontal segment, T, guide groove promote tilting section, Q guide groove projection horizontal segment, X, guide groove decline tilting section.

Embodiment:

As shown in Figure 1, a kind of cam driving gear of disposable sanitary articles, has the cam disk 1 of ring, and its inner ring is socketed on stationary axle by key or screw; Also there is guide wheel 2 and rocking arm 3, the outer peripheral surface of described cam disk 1 have circulation around guide groove 4, and there is projection on the axial direction of described cam disk 1; One end of described guide wheel 2 is distributed in guide groove 4, and its other end is connected with being driven workpiece 5 by rocking arm 3.

As shown in Figure 2, described guide wheel 2 has large bearing 21, little bearing 22, guide wheel shaft 23 and axle sleeve 24, and described large bearing 21, axle sleeve 24 and little bearing 22 are arranged on the guide wheel shaft 23 with step successively, and the end of described guide wheel shaft 23 has screw thread; Described guide wheel 2 at least has two groups, and decile is arranged on the excircle of cam disk 1.As shown in Figure 1, described guide wheel 2 has four groups.But be not limited to four groups, such as described guide wheel 2 has the more more options such as six groups, eight groups or ten groups.

As shown in Figure 1, described rocking arm 3 is " Z " font, on two horizontal edge, respectively there is a mounting hole, in the first mounting hole 9 of described guide wheel shaft 23 ends insertion rocking arms 3 and by nut locking, the second mounting hole 10 of described rocking arm 3 is fixedly connected with driving workpiece 5, the rocking arm of its " Z " font, is improved to hypotenuse structure by connecting two vertical edges that horizontal edge is installed.

See shown in Fig. 2 and Fig. 3, described cam disk 1 has secondary guide groove from periphery to inner ring direction, two guide grooves have shared the first groove face 6, and the second groove face 7 and the 3rd groove face 8 of an other side form step, and the width of outside the second groove face 7 and the first groove face 6 is greater than the width of inner the 3rd groove face 8.The periphery of described large bearing 21 all the time with the first groove face 6 Surface Contacts, the outer peripheral surface of described little bearing 22 contacts with the second groove face 8 all the time, the rotation direction separately of large bearing and little bearing is fixed, rotation direction is contrary.Described guide groove 4 has four sections of projections, is respectively guide groove horizontal segment L, and guide groove promotes tilting section T, guide groove projection horizontal segment Q and guide groove decline tilting section X.

Its working principle is: see shown in Fig. 1 and Fig. 3, four groups of guide wheels 2 are in first-class point of layout of circumference of cam disk 1, four groups of relative cam disks of guide wheel rotate counterclockwise, each guide wheel 2 rotates one week on cam disk, be equivalent to each guide wheel prolong center line AB from A to B direction pass by successively L, T, Q, tetra-sections of guide grooves of X, and rocking arm 3 is driven the second mounting hole 10 of workpiece 21 to be positioned at all the time cam centre line AB for installing, and the center line that the first mounting hole 9 on rocking arm 3 prolongs guide groove moves up and down.Guide wheel 2 is through guide groove horizontal segment L section, and rocking arm 3 is 45° angle degree with cam centre line AB, and guide wheel 2 is positioned at the top of center line AB; Guide wheel promotes inclination T section through guide groove, and the second mounting hole 10 of guide wheel 2 relative rocking arms turns clockwise 90 °, runs to below from the top of center line AB; Guide wheel 2 is through guide groove projection horizontal segment Q section, and rocking arm 3 is 45 ° with cam centre line AB, and guide wheel 2 is positioned at the below of center line AB; Guide wheel is through guide groove decline tilting section X end, and the second mounting hole 10 of guide wheel 2 relative rocking arms is rotated counterclockwise 90 ° of angles, runs to top from the below of center line AB.After this each cam above action that circulated successively.

Above-described specific embodiment; the purpose of this utility model, technological scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a cam driving gear for disposable sanitary articles, has the cam disk (1) of ring, and its inner ring is socketed on stationary axle by key or screw; It is characterized in that: also there is guide wheel (2) and rocking arm (3), the outer peripheral surface of described cam disk (1) have circulation around guide groove (4), and there is projection on the axial direction of described cam disk (1); One end of described guide wheel (2) is distributed in guide groove (4), and its other end is connected with being driven workpiece (5) by rocking arm (3).

2. the cam driving gear of a kind of disposable sanitary articles according to claim 1, it is characterized in that: described guide wheel (2) has large bearing (21), little bearing (22), guide wheel shaft (23) and axle sleeve (24), described large bearing (21), axle sleeve (24) and little bearing (22) are arranged on the guide wheel shaft (23) with step successively, and the end of described guide wheel shaft (23) has screw thread.

3. the cam driving gear of a kind of disposable sanitary articles according to claim 2, is characterized in that: described guide wheel (2) at least has two groups, and decile is arranged on the excircle of cam disk (1).

4. the cam driving gear of a kind of disposable sanitary articles according to claim 3, is characterized in that: described guide wheel (2) has four groups.

5. the cam driving gear of a kind of disposable sanitary articles according to claim 3, is characterized in that: described guide wheel (2) has six groups, eight groups or ten groups of quantity configurations.

6. according to the cam driving gear of a kind of disposable sanitary articles described in claim 3,4 or 5, it is characterized in that: described rocking arm (3) is " Z " font, on two horizontal edge, respectively there is a mounting hole, in first mounting hole (9) of described guide wheel shaft (23) end insertion rocking arm (3) and by nut locking, second mounting hole (10) of described rocking arm (3) is fixedly connected with driving workpiece (5).

7. the cam driving gear of a kind of disposable sanitary articles according to claim 6, is characterized in that: the rocking arm of its " Z " font, is improved to hypotenuse structure by connecting two vertical edges that horizontal edge is installed.

8. the cam driving gear of a kind of disposable sanitary articles according to claim 7, it is characterized in that: described cam disk (1) has secondary guide groove from periphery to inner ring direction, two guide grooves have shared the first groove face (6), second groove face (7) of an other side forms step with the 3rd groove face (8), and the width of outside the second groove face (7) and the first groove face (6) is greater than the width of inner the 3rd groove face (8).

9. the cam driving gear of a kind of disposable sanitary articles according to claim 8, it is characterized in that: the periphery of described large bearing (21) all the time with the first groove face (6) Surface Contact, the outer peripheral surface of described little bearing (22) contacts with the second groove face (8) all the time, the rotation direction separately of large bearing and little bearing is fixed, and rotation direction is contrary.

10. according to the cam driving gear of a kind of disposable sanitary articles described in claim 1 or 9, it is characterized in that: described guide groove (4) has four sections of projections, be respectively guide groove horizontal segment (L), guide groove promotes tilting section (T), guide groove projection horizontal segment (Q) and guide groove decline tilting section (X).