Conjugate cam mechanism of warp knitting machine

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a conjugate cam mechanism of a warp knitting machine, which comprises a cam, a roller is arranged at the top of the cam, a transmission rod is connected to the top of the outer side of the roller, roller supports are connected to the left end and the right end of the outer side of the roller, and a shaft mounting hole is formed in the middle of the cam. A convex strand is arranged on the outer surface of one side of the cam, a cam sleeve is further connected to the interior of the cam, and a cavity between the cam and the cam sleeve is arranged to be a lubricating medium storage cavity; according to the utility model, the cam and the roller are synchronously lubricated in the operation process, so that the friction during the operation of the cam mechanism is reduced, the noise is reduced, and the trouble of manual lubrication is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting machines, and particularly relates to a conjugate cam mechanism of a warp knitting machine. Background Technique

[0002] A warp knitting machine is a textile machine mainly used for producing warp knitted fabrics. A warp knitted fabric is a knitted fabric formed by one or several groups of parallel yarns simultaneously looping on all working needles fed in the warp direction of the machine. The machine that completes this kind of warp knitting is called a warp knitting machine.

[0003] The working principle of a warp knitting machine is that a driving mechanism drives a knitting mechanism to move, so that hooks and needles knit weft yarns on the warp yarns. The warp feeding mechanism is responsible for feeding the warp yarns and adjusting the tension and controlling the length according to the knitting requirements. The knitting mechanism moves according to a certain rule and knits the weft yarns on the warp yarns to form a fabric. Auxiliary machines then perform operations such as cutting, hot pressing, and shaping on the fabric to finally obtain the required finished product.

[0004] Among them, the conjugate cam mechanism of a warp knitting machine is a means of using double rollers to eliminate the clearance of the high pair contact elements of the cam mechanism. Two twin cams are fixedly connected into one body and complement each other during the lift and return strokes to ensure that the movement of the driven member is always in a "geometrically closed" state.

[0005] This mechanism generally includes parts such as a frame, a roller support, a cam, a roller assembly, and an inner roller assembly. One end of the roller support is hinged to the frame, and the other end is equipped with a roller assembly. The rollers on the roller assembly are in contact with the outer curved surface of the cam. At the same time, an inner roller assembly is also provided on the roller support, and the inner roller assembly is in contact with the inner curved surface of the cam to ensure that the rollers on the roller assembly can maintain close contact with the outer curved surface of the cam. The working principle of the conjugate cam mechanism is based on the concept of "conjugation", that is, the two cams cooperate with each other during movement to ensure that the movement trajectory of the driven member is accurate and stable. In a warp knitting machine, the conjugate cam mechanism drives the roller assembly to perform reciprocating movement through the rotational movement of the cam, thereby realizing the precise control of loop-forming parts such as knitting needles and combs.

[0006] However, after the conjugate cam mechanism of the current warp knitting machine operates for a period of time, the performance of the cam mechanism will decline, which will further lead to an increase in friction during the operation of the cam mechanism, and then generate noise. At this time, the mechanism needs to stop operating, and then manual lubrication of the cam mechanism is required to reduce the friction between them and continue to operate. However, this method requires the entire warp knitting machine to stop operating, which affects the textile process.

[0007] Therefore, it is necessary to design a conjugate cam mechanism of a warp knitting machine to solve the above-mentioned problems. Content of the Utility Model

[0008] The purpose of the present utility model is to provide a conjugate cam mechanism for a warp knitting machine to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above purpose, the present utility model provides the following technical solutions:

[0010] A conjugate cam mechanism for a warp knitting machine, including a cam. A roller is provided at the top of the cam. A transmission rod is connected to the outer top of the roller. Roller supports are connected to the left and right ends of the outer side of the roller. A shaft mounting hole is opened at the middle position of the cam. A convex rib is provided on the outer surface of one side of the cam. A cam sleeve is further connected inside the cam. The cavity between the cam and the cam sleeve is set as a lubricating medium storage cavity.

[0011] As a preferred scheme of the present utility model, the inside of the lubricating medium storage cavity is filled with a medium for lubricating the outer surface of the cam, and one side of the lubricating medium storage cavity located on the convex rib is clamped into the inner curved groove of the convex rib.

[0012] As a preferred scheme of the present utility model, an oil seepage layer is filled between one end of the lubricating medium storage cavity clamped into the inner curved groove of the convex rib and the inner curved groove of the convex rib, and a number of oil seepage micropores are opened on the oil seepage layer.

[0013] As a preferred scheme of the present utility model, a number of through holes are opened on the outer surface of the convex rib, and the through holes are communicated with the micropores on the oil seepage layer.

[0014] As a preferred scheme of the present utility model, a detachable sealing cover is further provided on the outer shell of the cam, and the inner cavity of the sealing cover is communicated with the lubricating medium storage cavity.

[0015] As a preferred scheme of the present utility model, a transmission shaft is respectively provided at the front end position of the roller support and a mounting hole is provided at the rear end thereof. The transmission shaft passes through the roller and is locked and fixed on the roller support by a nut.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] In the present utility model, by providing a conjugate cam mechanism for a warp knitting machine, when using the cam mechanism, the cam will drive the roller in contact with it to rotate synchronously during the rotation process. Then, when the roller contacts the convex rib on the cam, due to the extrusion effect, the oil seepage layer will be compressed, and then the lubricating medium inside the lubricating medium storage cavity will be extruded from the micropores and finally exposed to the cam through the through holes. Thus, during each rolling process, the lubricating medium will seep out and lubricate through the roller of the cam, thereby reducing the friction during the operation of the cam mechanism and reducing the noise. Description of the Drawings

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present utility model;

[0019] Figure 2 is Figure 1 a three-dimensional structure diagram from another perspective;

[0020] Figure 3 This is a schematic diagram of the internal cross-section of the cam of the present utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the roller support of the present utility model.

[0022] In the figure: 1. Cam; 2. Roller; 3. Transmission rod; 4. Roller support; 5. Convex ridge; 6. Shaft mounting hole; 7. Cam sleeve; 8. Lubricating medium storage cavity; 9. Oil seepage layer; 10. Through hole; 11. Sealing cover; 12. Transmission shaft; 13. Mounting hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used herein in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Example, please refer to Figures 1-4 , the present utility model provides a technical solution:

[0028] A conjugate cam mechanism of a warp knitting machine, including cam 1, a roller 2 is arranged at the top of cam 1, a transmission rod 3 is connected to the outer top of roller 2, roller supports 4 are connected to the left and right ends of the outer side of roller 2, a shaft mounting hole 6 is opened at the middle position of cam 1, a convex ridge 5 is arranged on the outer surface of one side of cam 1, a cam sleeve 7 is further connected inside cam 1, and the cavity between cam 1 and cam sleeve 7 is set as a lubricating medium storage cavity 8.

[0029] In this embodiment, the inside of the lubricating medium storage cavity 8 is filled with a medium for lubricating the outer surface of cam 1, and the side of the lubricating medium storage cavity 8 located on the convex ridge 5 is snapped into the inner curved groove of the convex ridge 5; an oil seepage layer 9 is filled between the end of the lubricating medium storage cavity 8 snapped into the inner curved groove of the convex ridge 5 and the inner curved groove of the convex ridge 5, and a number of oil seepage micropores are opened on the oil seepage layer 9; a number of through holes 10 are opened on the outer surface of the convex ridge 5, and the through holes 10 are communicated with the micropores on the oil seepage layer 9; during the rotation of cam 1, the roller 2 in contact with it will be driven to rotate synchronously. Then, when the roller 2 and the convex ridge 5 on cam 1 come into contact, due to the extrusion effect, the oil seepage layer 9 will be compressed, and then the lubricating medium inside the lubricating medium storage cavity 8 will be extruded from the micropores and finally exposed to cam 1 through the through holes 10. Thus, during each rolling process, the lubricating medium will seep out and lubricate through the roller 2 of cam 1, reducing the friction during the operation of the cam mechanism and reducing the noise.

[0030] In this embodiment, a detachable sealing cover 11 is further arranged on the outer shell of cam 1, and the inner cavity of the sealing cover 11 is communicated with the lubricating medium storage cavity 8; by opening the sealing cover 11, the lubricating medium for lubricating cam 1 can be added to the inside of the lubricating medium storage cavity 8.

[0031] In this embodiment, a transmission shaft 12 is respectively arranged at the front end position of the roller support 4 and a mounting hole 13 is arranged at the rear end thereof, wherein the transmission shaft 12 passes through the roller 2 and is locked and fixed on the roller support 4 by a nut.

[0032] Working process of the utility model: When using the conjugate cam mechanism of the warp knitting machine, the cam 1 will drive the roller 2 in contact with it to rotate synchronously during the rotation process. Then, when the convex ridge 5 on the roller 2 and the cam 1 come into contact, due to the extrusion effect, the oil leakage layer 9 will be compressed, and then the lubricating medium inside the lubricating medium storage cavity 8 will be extruded from the micropores and finally exposed to the cam 1 through the through hole 10. Further, during each rolling process, the lubricating medium will seep out and lubricate through the roller 2 of the cam 1, reducing the friction during the operation of the cam mechanism and reducing the noise. Further, by opening the sealing cover 11, the lubricating medium for lubricating the cam 1 can be added into the lubricating medium storage cavity 8.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A conjugate cam mechanism for a warp knitting machine, comprising a cam (1), characterized in that: A roller (2) is arranged on the top of the cam (1), a transmission rod (3) is connected to the top of the outer side of the roller (2), roller supports (4) are connected to the left and right ends of the outer side of the roller (2), a shaft mounting hole (6) is provided in the middle of the cam (1), a convex leg (5) is arranged on the outer surface of one side of the cam (1), a cam sleeve (7) is also connected to the inside of the cam (1), and the cavity between the cam (1) and the cam sleeve (7) is arranged as a lubricating medium storage cavity (8).

2. A conjugate cam mechanism for a warp knitting machine according to claim 1, characterized in that: The lubricating medium storage chamber (8) is filled with a medium for lubricating the outer surface of the cam (1), and the lubricating medium storage chamber (8) is located on one side of the convex leg (5) and is inserted into the inner curved groove of the convex leg (5).

3. A conjugate cam mechanism for a warp knitting machine according to claim 2, characterized in that: An oil seepage layer (9) is filled between one end of the lubricating medium storage cavity (8) inserted into the inner curved groove of the convex leg (5) and the inner curved groove of the convex leg (5), and a plurality of oil seepage micropores are opened on the oil seepage layer (9).

4. The conjugate cam mechanism of a warp knitting machine according to claim 1, characterized in that: A plurality of through holes (10) are provided on the outer surface of the convex leg (5), and the through holes (10) are connected to the micropores on the oil-permeable layer (9).

5. The conjugate cam mechanism of a warp knitting machine according to claim 1, characterized in that: A detachable sealing cover (11) is also provided on the outer shell of the cam (1), and the internal cavity of the sealing cover (11) is connected to the lubricating medium storage cavity (8).

6. The conjugate cam mechanism of a warp knitting machine according to claim 1, characterized in that: The roller support (4) is also provided with a transmission shaft (12) located at its front end and a mounting hole (13) located at its rear end, wherein the transmission shaft (12) passes through the roller (2) and is fixed to the roller support (4) by means of a nut.

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