CN210770137U

CN210770137U - Cam box cover

Info

Publication number: CN210770137U
Application number: CN201921439940.5U
Authority: CN
Inventors: 陈宥融; 陈志锋
Original assignee: Zhejiang Taitan Co ltd
Current assignee: Zhejiang Taitan Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-16
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a cam case lid, including the case lid main part, the inboard arch of case lid main part terminal surface forms annular bellying, be equipped with interval arrangement's first concave ring groove and second concave ring groove on the bellying, first concave ring groove sets up on the terminal surface of bellying. The utility model discloses eliminated the production of irregular gas pocket on the product, guaranteed the performance of product, stopped scrapping of equipment.

Description

Cam box cover

Technical Field

The utility model relates to a cam technical field is used in the weaving, especially relates to cam case lid.

Background

In the prior art, the traditional production mode of cam case lid adopts the mode of moulding plastics earlier to obtain the initial structure of cam case lid, as shown in fig. 3, first concave ring groove and second concave ring groove are turned out to rethread machine turning mode on the bellying of this initial structure, the wall thickness of the bellying of this initial structure is 7.5mm, the wall thickness is great, because plastics receive gaseous interference filling the mould in-process, can form a large amount of anomalous gas pockets on the bellying, the existence of these gas pockets will lead to the vibration of rapier weaving machine fuselage in the course of the work, in addition, under lasting high temperature environment, machine oil will ooze through the gas pocket, greatly reduced the performance of equipment, will lead to equipment to scrap even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a cam case lid, eliminated the production of irregular gas pocket on the product, guaranteed the performance of product, stopped scrapping of equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the cam case cover comprises a case cover main body, wherein an annular bulge is formed by the inner side of the end face of the case cover main body in a protruding mode, first concave ring grooves and second concave ring grooves are arranged on the bulge at intervals, and the first concave ring grooves are formed in the end face of the bulge.

The wall thickness of first concave ring groove is 2.5mm, second concave ring groove wall thickness is 3 mm.

The oil seal structure is characterized in that an oil seal port is formed in one side portion of the box cover main body, a plurality of oil seal holes are formed in the bottom surface of the box cover main body, one oil seal hole is formed in the center of the box cover main body, and the oil seal ports are communicated with the oil seal holes.

The bottom surface of the box cover main body is also provided with a reinforcing ring concentric with the boss, the outer wall of the oil sealing hole at the center radiates to the outer circumference to form a reinforcing block connected to the annular inner wall of the boss and the inner wall of the box cover main body, and the reinforcing block is intersected with the reinforcing ring.

The utility model has the advantages that: the product is manufactured by injection molding in a mode of adding the insert into the lower mold cavity, so that the thickness of the bulge part is thinned, the generation of irregular air holes on the product is eliminated, the use performance of the product is ensured, the scrapping of equipment is avoided, in addition, the subsequent operation of turning the first concave ring groove and the second concave ring groove is also omitted, and the labor intensity is reduced.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention connected to an insert;

fig. 3 is a structural diagram of an initial structure of a cam box cover manufactured by injection molding in a conventional production mode.

In the figure: the box cover comprises a box cover main body 1, a convex part 2, a first concave ring groove 3, a second concave ring groove 4, an oil sealing opening 5, an oil sealing hole 6, a reinforcing ring 7, a reinforcing block 8, an insert 9 and an insert concave ring groove 91.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1-2, the cam box cover comprises a box cover main body 1, wherein the inner side of the end surface of the box cover main body 1 is protruded to form an annular protrusion 2, in the utility model, the box cover main body 1 is square, the edges of the periphery of the box cover main body 1 are provided with round holes with various sizes, which can reduce the consumption of raw materials and reduce the quality of the cam box cover, the protrusion 2 is provided with a first concave ring groove 3 and a second concave ring groove 4 which are arranged at intervals, the first concave ring groove 3 is arranged on the end surface of the protrusion 2, the wall thickness of the first concave ring groove 3 is 2.5mm, the wall thickness of the second concave ring groove 4 is 3mm, the second concave ring groove 4 is used for placing a sealing ring, the first concave ring groove 3 is matched with the structure of the other part of the cam box, since the wall thickness of an injection molding product exceeds 3mm, air holes are easy to appear, thus the wall thicknesses of the first concave ring groove 3 and the second concave ring groove 4 are, the generation of bubbles can be effectively eliminated.

Be equipped with on one side portion of case lid main part 1 and seal hydraulic fluid port 5, be equipped with a plurality of oilholes 6 and one of them central point that seals oilhole 6 and locate case lid main part 1 on the bottom surface of case lid main part 1 and put the department, it all is linked together with a plurality of oilholes 6 to seal hydraulic fluid port 5, the utility model discloses in, the quantity that seals oilhole 6 is 3, for the convenience will seal hydraulic fluid port 5 and a plurality of oilhole 6 intercommunication, seals hydraulic fluid port 5 and a plurality of oilhole 6 settings on a straight line.

The bottom surface of the case cover main body 1 is also provided with a reinforcing ring 7 concentric with the boss 2, the outer wall of the oil sealing hole 6 positioned at the center is radiated to the outer circumference to form a reinforcing block 8 connected to the annular inner wall of the boss 2 and the inner wall of the case cover main body 1, the reinforcing block 8 is intersected with the reinforcing ring 7, and the reinforcing block 8 and the reinforcing ring 7 can increase the structural strength of the whole cam case cover and also can increase the structural strength of the oil sealing hole 6.

The utility model discloses a production method is different from traditional production method, it adopts the mode injection moulding who adds mold insert 9 in the lower mould chamber to make, mold insert 9 is the ring form structure of compriseing two semicircle ring docks, be equipped with mold insert concave ring groove 91 on the mold insert 9, the mold insert 9 part of mold insert concave ring groove 91 both sides is corresponding to the first concave ring groove 3 and the second concave ring groove 4 of moulding plastics, mold insert concave ring groove 91 is corresponding to the interval part between the first concave ring groove 3 and the second concave ring groove 4 of moulding plastics, accomplish the manufacturing of first concave ring groove 3 and concave ring groove 4 simultaneously through above-mentioned injection moulding mode, make the 2 wall thickness attenuation of bellying that need mould plastics, thereby solved the gas pocket problem that traditional production mode produced and exists, the performance of product has been guaranteed, the scrapping of equipment has been stopped.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. Cam case lid, including case lid main part (1), its characterized in that: the box cover comprises a box cover main body (1), wherein an annular bulge (2) is formed by bulging the inner side of the end face of the box cover main body (1), first concave ring grooves (3) and second concave ring grooves (4) are arranged on the bulge (2) at intervals, and the first concave ring grooves (3) are arranged on the end face of the bulge (2).

2. The cam box cover of claim 1, wherein: the wall thickness of first concave ring groove (3) is 2.5mm, second concave ring groove (4) wall thickness is 3 mm.

3. The cam box cover of claim 1, wherein: the oil seal structure is characterized in that an oil seal opening (5) is formed in one side portion of the box cover main body (1), a plurality of oil seal holes (6) are formed in the bottom surface of the box cover main body (1), one oil seal hole (6) is formed in the center of the box cover main body (1), and the oil seal opening (5) is communicated with the oil seal holes (6).

4. The cam box cover of claim 3, wherein: the bottom surface of the box cover main body (1) is further provided with a reinforcing ring (7) concentric with the boss (2), the outer wall of the oil sealing hole (6) at the center radiates to the outer circumference to form a reinforcing block (8) connected to the annular inner wall of the boss (2) and the inner wall of the box cover main body (1), and the reinforcing block (8) is intersected with the reinforcing ring (7).