Connecting gasket and cam assembly

Abstract

The utility model relates to the technical field of cams, in particular to a connecting gasket and a cam assembly, and provides the connecting gasket which comprises a supporting ring, a gasket body and an elastic piece. The overhanging ring is integrally arranged on the outer side wall of the supporting ring; wherein a plurality of cleaning parts are arranged at the bottom of the cantilever ring; a protective bag is arranged at the top of the supporting ring; an inclined hole is formed in the support ring in the inner cavity of the protective bag; the overhanging ring is arranged to block the connecting gap of the cam and the swing rod, knitting batting is prevented from directly entering the gap, the cleaning part is arranged, batting is further prevented from being retained around the gap, lubricating oil is prevented from adhering to batting, and the problem that the connecting gap of the cam and the swing rod is blocked is effectively solved; by arranging the protection bag, the buffering protection effect on the cam and the side face of the swing rod is achieved, in addition, the protection bag is matched with the inclined hole, batting can be further removed, and the plug releasing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cams, in particular to a connecting washer and a cam assembly. Background Art

[0002] The existing cam structure is relatively common, such as the embroidery machine head cam assembly with patent number 201420502371.5. For details, please refer to Figure 1 ,like Figure 1 As shown, the cam assembly includes an eccentric cam 10 and a swing rod 30. The outer wall of the cam seat 11 connected to the eccentric cam 10 and the swing rod 30 is provided with a first arc-shaped annular groove 12 with an annular inward concave shape. The inner wall of the large swing rod head ring 31 matched with the swing rod 30 and the cam seat 11 is provided with a second arc-shaped annular groove 32 matched with the first arc-shaped annular groove 12. When the swing rod 30 and the eccentric cam 10 are installed and connected together, the second arc-shaped annular groove 32 and the first arc-shaped annular groove 12 face each other to form a common annular groove, and a ball assembly 20 is installed in the annular groove, and the ball assembly 20 includes an annular ball The mounting bracket and multiple balls 22 are evenly distributed on the ball mounting bracket; the annular ball mounting bracket is composed of multiple ball positioning circles 21 connected in an annular shape, and a connecting bridge section 23 is provided between each ball positioning circle 21. The multiple connecting bridge sections 23 and the multiple ball positioning circles 21 are connected together to form an annular ball mounting bracket 20 as a whole. When the above-mentioned eccentric cam 10 and rocker rod 30 rotate relative to each other, lubricating oil will exist in the connecting gap to reduce friction. The lubricating oil itself is easy to adhere to fluff, which makes it easy for fluff to get stuck in the connecting gap, thereby affecting the normal relative rotation of the eccentric cam 10 and the rocker rod 30.

[0003] Therefore, how to prevent fluff from entering the connection gap between the rocker rod and the cam is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0004] The utility model provides a connecting washer to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a connecting gasket, including: a support ring; and a cantilever ring integrally arranged on the outer wall of the support ring; wherein a plurality of cleaning parts are arranged at the bottom of the cantilever ring; and a protective bag is arranged at the top of the support ring; wherein an inclined hole is opened on the support ring in the inner cavity of the protective bag.

[0006] Furthermore, the thickness of the support ring is greater than the thickness of the cantilever ring.

[0007] Furthermore, the cleaning part includes a rubber base; and an arc-shaped brush arranged on the bottom edge of the rubber base; wherein the arc-shaped brushes are fixed on the rubber base at equal intervals.

[0008] Furthermore, the inclined hole has a large-diameter end; and a small-diameter end corresponding to the large-diameter end; wherein the large-diameter end is arranged on the bottom surface of the inner cavity of the protective bag; and the small-diameter end faces the direction of the arc-shaped brush.

[0009] Furthermore, an assembly ring is installed at the inner edge of the bottom surface of the support ring; wherein the assembly ring is made of elastic material; and the outer contour of the vertical section of the assembly ring is "L"-shaped.

[0010] The utility model also provides a cam assembly, characterized in that it includes: the cam, the rocker arm and the connecting washer as described above; wherein the connecting washer is relatively connected to the cam; and a portion of the connecting washer covers the connecting gap between the cam and the rocker arm.

[0011] Furthermore, a mounting groove is provided on the top of the cam; wherein the inner contour of the mounting groove matches the mounting ring.

[0012] Furthermore, a guide groove is provided on the outer side wall of the cam; wherein the vertical section of the guide groove is 1 / 2 of an arc.

[0013] Furthermore, a plurality of limiting holes are formed on the inner wall of the swing rod; and a steel ball is arranged in the limiting hole; wherein the portion of the steel ball extending out of the limiting hole abuts against the inner wall of the guide groove.

[0014] Furthermore, the small-diameter end faces the connection direction between the cam and the rocker rod; and the brush abuts against the surface of the rocker rod.

[0015] Compared with the prior art, the utility model is beneficial in that:

[0016] By setting a cantilever ring to block the connection gap between the cam and the swing rod, it can prevent the knitted wool from directly entering the gap;

[0017] By setting up a cleaning part, it is further prevented that the fluff is trapped around the gap and lubricating oil is prevented from adhering to the fluff, which effectively solves the problem of the gap between the cam and the rocker arm being blocked;

[0018] By providing a protective bag, a buffering and protective effect is achieved on the sides of the cam and the rocker arm. In addition, in conjunction with the inclined hole, lint can be further removed to improve the plugging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of a cam assembly in the prior art;

[0021] Figure 2An exploded view of the optimal embodiment of the connection washer and cam assembly of the utility model;

[0022] Figure 3 A three-dimensional diagram of the optimal embodiment of the connection washer and cam assembly of the utility model;

[0023] Figure 4 It is a three-dimensional cross-sectional view of the optimal embodiment of the connecting gasket of the utility model;

[0024] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0025] Among them, 100, cam; 101, guide groove; 102, assembly groove; 200, rocker arm; 201, limit hole; 202, steel ball; 300, connecting washer; 301, support ring; 302, assembly ring; 303, protective bag; 304, cantilever ring; 305, cleaning part; 36, inclined hole. DETAILED DESCRIPTION

[0026] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0027] See also Figure 2 Combined with Figure 3 to Figure 4 , Figure 2 An exploded view of the optimal embodiment of the connection washer and cam assembly of the utility model; Figure 3 A three-dimensional diagram of the optimal embodiment of the connection washer and cam assembly of the utility model; Figure 4 This is a three-dimensional cross-sectional view of the optimal embodiment of the connection gasket of the utility model. Figures 2 to 4As shown. At least one embodiment provides a connection gasket, including: a support ring 301, an assembly ring 302, a protective capsule 303 and a cantilever ring 304; the cantilever ring 304 is integrally arranged on the outer side wall of the support ring 301, and the thickness of the support ring 301 is greater than the thickness of the cantilever ring 304. One side of the cantilever ring 304 does not contact the side of the swing rod 200, and there is a certain distance; in order to prevent the side of the swing rod 200 from retaining fluff, a plurality of cleaning parts 305 are arranged at the bottom of the cantilever ring 304, and the cleaning parts 305 can clean the fluff by friction with the surface of the swing rod 200 when the cam 100 rotates; and a protective capsule 303 is arranged on the top of the support ring 301; a certain protective buffer effect is achieved, wherein an oblique hole 36 is opened on the support ring 301 in the inner cavity of the protective capsule 303. When it is necessary to clean the side of the rocker arm 200 corresponding to the cantilever ring 304, the downward pressure of the protective bag 303 can allow the inclined hole 36 to blow air to this position. The inclined hole 36 has a large-diameter end; and a small-diameter end corresponding to the large-diameter end; wherein the large-diameter end is arranged on the bottom surface of the inner cavity of the protective bag 303; and the small-diameter end faces the direction of the arc-shaped brush, and the diameter decreases along the blowing direction, thereby enhancing the pressure of the blown gas and improving the effect of cleaning the fluff. In addition, the deformation speed of the protective bag 303 is slowed down to achieve a better protective effect, and the small-diameter end faces the connection direction of the cam 100 and the rocker arm 200.

[0028] Please continue reading Figure 4 Combined with Figure 5 , Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the figure. Figures 4 to 5 As shown, the cleaning part 305 includes a rubber base; and an arc-shaped brush arranged on the bottom edge of the rubber base; wherein the arc-shaped brushes are fixed on the rubber base at equal intervals, and the arc-shaped brushes connected to the rubber base clean the area around the connection gap between the rocker arm 200 and the cam 100 as the cam 100 rotates.

[0029] Please continue reading Figure 3 Combined with Figure 5 .like Figure 3 and Figure 5 As shown, an assembly ring 302 is installed at the inner edge of the bottom surface of the support ring 301; the assembly ring 302 is made of elastic material; and the vertical cross-section outer contour of the assembly ring 302 is "L" shaped, and the support ring 301 is detachably connected to the cam 100 through the assembly ring 302.

[0030] Please continue reading Figure 2 Combined with Figure 3 .like Figures 2 to 3As shown, the utility model also provides a cam assembly, including a cam 100, a swing rod 200 and a connection washer 300 as described above; wherein the connection washer 300 is relatively connected to the cam 100; and a portion of the connection washer 300 covers the connection gap between the cam 100 and the swing rod 200. A mounting groove 102 is provided at the top of the cam 100; wherein the inner contour of the mounting groove 102 coincides with the mounting ring 302. A guide groove 101 is provided on the outer side wall of the cam 100; wherein the vertical section of the guide groove 101 is 1 / 2 of an arc.

[0031] Please continue reading Figure 2 .like Figure 2 As shown, a plurality of limiting holes 201 are formed on the inner wall of the swing rod 200; and a steel ball 202 is arranged in the limiting hole 201; wherein the portion of the steel ball 202 extending out of the limiting hole 201 abuts against the inner wall of the guide groove 101, and during use, lubricating oil is present in the steel ball 202 and the gap where the steel ball 202 and the swing rod 200 are connected to the cam 100.

[0032] To summarize, by providing a cantilever ring 304 to block the connecting gap between the cam 100 and the rocker arm 200, it is possible to prevent knitted fluff from directly entering the gap. By providing a cleaning portion 305, it is further possible to prevent fluff from being retained around the gap, and to prevent lubricating oil from adhering to the fluff, thereby effectively solving the problem of blockage in the connecting gap between the cam 100 and the rocker arm 200. By providing a protective bag 303, a buffering and protective effect is achieved on the sides of the cam 100 and the rocker arm 200. In addition, in cooperation with the inclined hole 36, the fluff can be further removed to improve the blocking effect.

[0033] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A connection washer, characterized in that: include: A support ring (301); and a cantilever ring (304) integrally arranged on the outer side wall of the support ring (301); in A plurality of cleaning portions (305) are provided at the bottom of the cantilever ring (304); and A protective bag (303) is provided on the top of the support ring (301); An oblique hole (36) is provided on the support ring (301) in the inner cavity of the protective bag (303).

2. The connection gasket (300) according to claim 1, characterized in that: The thickness of the support ring (301) is greater than the thickness of the cantilever ring (304).

3. The connection gasket (300) according to claim 2, characterized in that: The cleaning part (305) includes a rubber base; and An arc-shaped brush is arranged at the bottom edge of the rubber pedestal; wherein The arc-shaped brushes are fixed on the rubber base at equal intervals.

4. The connection gasket (300) according to claim 3, characterized in that: The inclined hole (36) has a large diameter end; and A small-diameter end corresponding to the large-diameter end; wherein The large-diameter end is arranged on the bottom surface of the inner cavity of the protective bag (303); and The small-diameter end faces the direction of the arc-shaped brush.

5. The connection gasket (300) according to claim 4, characterized in that: An assembly ring (302) is installed at the inner edge of the bottom surface of the support ring (301); The assembly ring (302) is made of elastic material; and The outer contour of the vertical cross section of the assembly ring (302) is in an "L" shape.

6. A cam assembly, characterized in that: include: The cam (100), the rocker rod (200) and the connecting washer (300) according to any one of claims 1 to 5; in The connecting washer (300) is relatively connected to the cam (100); and Part of the connection gasket (300) covers the connection gap between the cam (100) and the rocker rod (200).

7. The cam assembly according to claim 6, characterized in that: The top of the cam (100) is provided with a mounting groove (102); wherein The inner contour of the assembly groove (102) matches the assembly ring (302).

8. The cam assembly according to claim 7, wherein: The outer side wall of the cam (100) is provided with a guide groove (101); wherein The vertical cross section of the guide groove (101) is 1 / 2 of an arc.

9. The cam assembly according to claim 8, characterized in that: The inner wall of the swing rod (200) is provided with a plurality of limiting holes (201); and A steel ball (202) is arranged in the limiting hole (201); wherein The portion of the steel ball (202) extending out of the limiting hole (201) abuts against the inner wall of the guide groove (101).

10. The cam assembly according to claim 9, wherein: The small-diameter end faces the connection direction between the cam (100) and the rocker (200); and The brush abuts against the surface of the swing rod (200).

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