Intermittent oil scraping device for optical cable

Abstract

The utility model provides an intermittent oil scraping device for an optical cable, and belongs to the technical field of mechanical structures for providing tensile strength and external protection for optical fibers. The intermittent oil scraping device for the optical cable comprises a mounting seat used for being fixed to a material collecting groove, a swing rod is rotatably mounted on the mounting seat, and the intermittent oil scraping device for the optical cable further comprises a force application mechanism which is used for being fixed to the material collecting groove or the mounting seat and used for applying force to one end of the swing rod so as to enable the other end of the swing rod to swing. One end, acted by the force applying mechanism, of the swing rod is a stressed end, the other end of the swing rod is a swing end capable of swinging up and down, a paste scraping mold is mounted at the swing end, and a paste scraping groove which is close to the optical cable part to scrape off the factice on the surface of the optical cable part when the swing end swings upwards or downwards is formed in the paste scraping mold. According to the utility model, the amount of ointment on the surface of the optical cable piece can be controlled through one set of device, the operation is simple, the structural arrangement is simplified, the space is not occupied too much, and the problems of excessive oil supplementing amount and oil scraping work caused by secondary oil supplementing are avoided.

Description

Technical Field

[0001] This utility model relates to an intermittent oil scraping device for optical cables, belonging to the technical field of mechanical structures used to provide tensile strength and external protection for optical fibers. Background Technology

[0002] Water permeability is an important indicator of optical cables. Most optical cables use grease to block water. That is, in the production process of optical cables, the central reinforcement of the optical cable is first passed through the grease box, so that the outside of the central reinforcement is covered with grease. Then it is stranded with the optical fiber sheath to form the cable core. During the stranding process, the grease attached to the central reinforcement is squeezed by the surrounding optical fiber sheath and seeps into the optical fiber sheath, so as to achieve the purpose of filling the cable core with grease.

[0003] Currently, the filling of the center reinforcement with grease is often done by full coating, resulting in large grease consumption, high production costs, and failure to meet the requirements of green development. In response, a utility model patent with authorization announcement number CN221101107U discloses a scraping device for optical cable manufacturing. This scraping device includes a collection trough, with a grease cylinder, a scraping assembly, and a replenishing assembly fixedly mounted on the upper end of the collection trough via multiple support plates. The scraping assembly includes an oil collection tank and a cable guide frame and a scraping blade fixed inside the oil collection tank. The replenishing assembly includes a support plate, two replenishing rollers rotatably mounted on the support plate, and an oil storage tank fixed on the support plate and located above the replenishing rollers. A discharge pipe is provided at the bottom of the oil storage tank, allowing the grease in the oil storage tank to fall onto the surface of the replenishing rollers. During use, the optical cable component first passes through an oiling can to apply oil to its surface. Then, it enters the oil collection tank via a cable guide frame. When it passes through an oil scraper, excess oil is scraped off the surface of the optical cable component, and the scraped-off oil falls into the oil collection tank, eventually flowing into the collection trough. Finally, the optical cable component is clamped and conveyed by two oil replenishment rollers, allowing the oil on the surface of the rollers to be applied to the surface of the optical cable component, performing a secondary oiling process.

[0004] The aforementioned oil scraping device applies grease to the surface of the optical cable component by first coating, then scraping, and then patching to control the amount of grease used. However, the operation is cumbersome because the scraping and then patching process is complicated, and the structure of the oil patching component is relatively complex, requiring a certain amount of space. At the same time, it is difficult to accurately control the amount of grease applied by the oil patching component, which can easily lead to excessive application of grease, rendering the previous oil scraping work futile. Therefore, the device has defects in its use. Utility Model Content

[0005] The purpose of this invention is to provide an intermittent oil scraping device for optical cables, so as to solve the problems of existing oil scraping devices that use the method of first coating, then scraping, and then replenishing, which leads to cumbersome operation, complex structure, large space occupation, and easy excessive oil replenishment.

[0006] To achieve the above objectives, the intermittent oil scraping device for optical cables in this utility model adopts the following technical solution:

[0007] An intermittent oil scraping device for optical cables includes a mounting base for fixing to a collection trough. A swing arm is rotatably mounted on the mounting base. The intermittent oil scraping device for optical cables also includes a force-applying mechanism for fixing to the collection trough or the mounting base and for applying force to one end of the swing arm to make the other end of the swing arm swing. The end of the swing arm that is acted upon by the force-applying mechanism is the force-receiving end, and the other end is a swing end that can swing up and down. A scraping mold is installed on the swing end. The scraping mold is provided with scraping grooves for approaching the optical cable component to scrape off the oil on the surface of the optical cable component when the swing end swings up or down.

[0008] The beneficial effects of the above technical solution are as follows: This utility model is a pioneering invention. The provided oil scraping device includes a mounting base that can be fixed on a material collection trough. A swing arm is rotatably mounted on the mounting base. The oil scraping device also includes a force-applying mechanism for fixing to the material collection trough or the mounting base and for applying force to one end of the swing arm to make the other end of the swing arm swing. The end of the swing arm that is acted upon by the force-applying mechanism is the force-receiving end, and the other end is a swinging end that can swing up and down. A scraping mold is installed on the swinging end, and a scraping groove is provided on the scraping mold. In this way, when the swinging end swings up or down, the scraping groove can approach the optical cable component to scrape off the oil on the surface of the optical cable component, avoiding excessive oil and waste. When the swinging end swings in the opposite direction, the scraping groove will move away from the optical cable component, thereby realizing intermittent oil scraping operation and avoiding continuous oil scraping that would result in insufficient oil and thus affect the manufacturing quality of the optical cable. Therefore, this utility model can control the amount of grease on the surface of optical cable components with a single device. It is simple to operate, simplifies the structural setup, does not take up too much space, and avoids the problem of excessive grease replenishment and wasted grease scraping work caused by secondary grease replenishment.

[0009] Furthermore, the force-applying mechanism is used to press down the force-receiving end to make the swing end swing upward, and the swing rod is a force-reducing lever so that when the force-applying mechanism cancels the force, the swing end swings downward using its own weight.

[0010] Furthermore, the grease scraping groove is used to approach the optical cable component when the swing end swings upward to scrape off the grease on the surface of the optical cable component. A spring is provided between the grease scraping mold and the swing arm to allow the swing arm to continue swinging upward for a certain distance after the grease scraping groove contacts the optical cable component.

[0011] Furthermore, a fixed rod is connected to the scraping mold, the scraping mold is located below the swing rod, the fixed rod extends upward through the swing rod, the part of the fixed rod above the swing rod is fitted with the aforementioned spring, and an upper stop is installed on the fixed rod, with the spring topped between the upper stop and the swing rod.

[0012] Furthermore, a lower stop is also installed on the fixed rod, which is located below the swing arm and is used to stop the swing arm.

[0013] Furthermore, a fixed rod is connected to the swing arm, the scraping mold is located above the swing arm, the fixed rod passes through the scraping mold, and the spring is sleeved outside the fixed rod and topped between the scraping mold and the swing arm.

[0014] Furthermore, the fixing rod is a round rod, and there are two fixing rods arranged at intervals along the length of the swing rod, with the aforementioned spring sleeved on each fixing rod.

[0015] Furthermore, the force-applying mechanism includes a rotary power source and a cam installed at the output end of the rotary power source, the cam being used to intermittently press down on the force-receiving end during rotation.

[0016] Furthermore, the cam includes two arcuate side surfaces arranged symmetrically with respect to the cam rotation center, and a flat side surface connected between the two ends of the arcuate side surfaces. The arcuate side surfaces are used to press down on the force-bearing end.

[0017] Furthermore, the groove for scraping the paste is an arc-shaped groove. Attached Figure Description

[0018] Figure 1 This is a front view of the usage state of Embodiment 1 of the intermittent oil scraping device for optical cables of this utility model;

[0019] Figure 2 This is a top view of the intermittent oil scraping device for optical cables according to Embodiment 1 of this utility model in use.

[0020] Figure 3 This is a side view of Embodiment 1 of the intermittent oil scraping device for optical cables of this utility model;

[0021] Figure 4 This is an assembly side view of the motor, swing arm, and mounting base in Embodiment 1 of the intermittent oil scraping device for optical cables of this utility model;

[0022] Figure 5 This is a front view of the assembly of the motor, swing arm, and mounting base in Embodiment 1 of the intermittent oil scraping device for optical cables of this utility model;

[0023] Figure 6 This is a side view of Embodiment 2 of the intermittent oil scraping device for optical cables of this utility model;

[0024] Figure 7 This is a side view of Embodiment 3 of the intermittent oil scraping device for optical cables of this utility model;

[0025] Figure 8 This is a side view of Embodiment 4 of the intermittent oil scraping device for optical cables of this utility model.

[0026] In the diagram: 1. Collection trough; 2. Oil box; 3. Optical cable component; 4. Mounting base; 41. Vertical plate; 42. Horizontal plate; 43. Hinge seat; 44. Hinge shaft; 5. Rocker arm; 6. Motor; 61. Output shaft; 62. Cam; 7. Scraper mold; 71. Scraper groove; 8. Fixing rod; 9. Spring; 10. Upper stop; 11. Lower stop. Detailed Implementation

[0027] In view of the technical problems existing in the prior art, the basic concept of this utility model is to design a device that can intermittently scrape oil off optical cable components. The device controls the swing arm to swing up and down through a force application mechanism, and only scrapes off the grease on the surface of the optical cable component when swinging up or down. This avoids both excessive grease causing waste and insufficient grease affecting the manufacturing quality of the optical cable.

[0028] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0029] Example 1 of the intermittent oil scraping device for optical cables in this utility model:

[0030] like Figure 1 and Figure 2 As shown, the intermittent oil scraping device for optical cables includes a mounting base 4 for fixing to the top surface of the collection trough 1. An oil grease tank 2 is also fixed to the top surface of the collection trough 1. The oil grease tank 2 stores oil grease, and has an inlet on one side of its bottom and an outlet on the other side. The optical cable component 3 passes through the inlet into the oil grease tank 2 and exits through the outlet, with oil grease adhering to its surface upon exiting. The intermittent oil scraping device for optical cables is used to intermittently scrape off the oil grease from the surface of the optical cable component 3 to avoid excessive or insufficient oil grease. The scraped oil grease falls into the collection trough 1 for easy recycling.

[0031] Specifically, in combination Figure 3 , Figure 4 and Figure 5 As shown, a swing arm 5 is rotatably mounted on the mounting base 4, and the swing arm 5 extends above the collection trough 1. The intermittent oil scraping device for optical cables also includes a force-applying mechanism fixed on the mounting base 4 and used to apply force to one end of the swing arm 5 to make the other end of the swing arm 5 swing. The end of the swing arm 5 that is acted upon by the force-applying mechanism is the force-receiving end, and the other end is the swinging end that can swing up and down. The pivot point of the swing arm 5 is O.

[0032] In this embodiment, the force-applying mechanism is used to press down the force-receiving end to make the swing end swing upward. The swing end is equipped with a scraping mold 7. The scraping mold 7 is provided with a scraping groove 71 for scraping off the grease on the surface of the optical cable component 3 when the swing end swings upward. The groove opening of the scraping groove 71 is arranged facing upward, and the swing rod 5 is a lever that requires more effort. In this way, when the force-applying mechanism cancels the force, the swing end can swing downward by its own weight, thereby moving the scraping mold 7 away from the optical cable component 3. Thus, the force-applying mechanism only needs to apply force to the swing rod 5 in one direction, which is more convenient to control.

[0033] Specifically, the force-applying mechanism includes a rotary power source and a cam 62 mounted on the output end of the rotary power source. The rotary power source is a motor 6, and the cam 62 is mounted on the output shaft 61 of the motor 6 and can be driven to rotate by the motor 6. The motor 6 is fixed on the mounting base 4, which has an L-shaped structure and includes a vertical plate 41 and a horizontal plate 42 perpendicularly connected to the vertical plate 41. The horizontal plate 42 is used to fix the motor 6 on the top surface of the collection trough 1. The motor 6 is fixed on the vertical plate 41, and the vertical plate 41 is provided with a through hole through which the output shaft 61 of the motor 6 passes. At the same time, a hinge seat 43 is also fixed on the vertical plate 41, and the swing arm 5 is mounted on the hinge seat 43 through a hinge shaft 44 to realize the swinging action.

[0034] When the motor 6 drives the cam 62 to rotate, the cam 62 intermittently presses down on the force-bearing end. The cam 62 includes two arcuate sides symmetrically arranged with respect to the rotation center of the cam and a flat side connected between the two ends of the arcuate sides. The arcuate sides are used to press down on the force-bearing end. In this way, the cam 62 can press down on the force-bearing end twice in one rotation, making the spacing between the parts of the optical cable component 3 where the grease is scraped off smaller. This ensures that the amount of grease scraped off is sufficient, avoids grease waste, and also makes the scraped area more uniform, ensuring the quality of subsequent production.

[0035] Furthermore, a spring 9 is provided between the scraper mold 7 and the swing rod 5 to allow the swing rod 5 to continue swinging upward for a certain distance after the scraper groove 71 contacts the optical cable component 3. In this way, the scraper mold 7 can remain stationary against the optical cable component 3, while only the swing rod 5 continues to swing. This avoids the problem that if the swing rod 5 is rigidly connected, it is easy to apply excessive force to the optical cable component 3 and cause deformation of the optical cable component 3 if there is a deviation in the swing stroke of the swing rod 5.

[0036] Specifically, such as Figure 3As shown, a fixed rod 8 is connected to the scraper mold 7. The scraper mold 7 is located below the swing rod 5, which is located above the optical cable component 3. The fixed rod 8 extends upward through the swing rod 5. A spring 9 is fitted onto the portion of the fixed rod 8 above the swing rod 5, and an upper stop 10 is installed on the fixed rod 8. The spring 9 is mounted between the upper stop 10 and the swing rod 5. Thus, after the scraper groove 71 contacts the optical cable component 3, the swing rod 5 can continue to swing upward relative to the fixed rod 8, thereby compressing the spring 9. Of course, to avoid jamming, the through hole on the swing rod 5 for the fixed rod 8 to pass through is an oblong hole.

[0037] Furthermore, a lower stop 11 is also installed on the fixed rod 8. The lower stop 11 is located below the swing rod 5 and is used to stop the swing rod 5. In this way, the spring 9 is in a pre-compressed state during the initial assembly. The swing rod 5, fixed rod 8, spring 9, scraper mold 7, upper stop 10 and lower stop 11 can form an integral assembly. When the cam 62 does not press on the force-bearing end of the swing rod 5, the integral assembly of the swing end can swing downward as a whole. When swinging upward, before the scraper mold 7 contacts the optical cable component 3, the whole swings upward. The movement is flexible and the control is convenient.

[0038] To facilitate manufacturing, both the upper stop 10 and the lower stop 11 can be nuts, and the surface of the fixing rod 8 is machined with external threads to facilitate the installation of the upper stop 10 and the lower stop 11.

[0039] Furthermore, the fixed rod 8 is a round rod, and there are two fixed rods 8 arranged at intervals along the length of the swing rod 5. Each fixed rod 8 is fitted with a spring 9. This not only facilitates processing and manufacturing, but also makes the relative movement between the fixed rod 8 and the swing rod 5 smoother and the force more balanced.

[0040] In addition, the optical cable component 3 in this embodiment is a central reinforcing component inside the optical cable. In other embodiments, it can also be an optical fiber sleeve. The above-mentioned scraping groove 71 is an arc groove to avoid damaging the optical cable component 3, while ensuring the amount of grease scraped off.

[0041] In use, the intermittent oil scraping device for optical cables of this utility model operates with the motor 6 continuously running, driving the cam 62 to rotate continuously. Each rotation of the cam 62 causes its two arc-shaped sides to press down on the force-bearing end of the swing arm 5 once. During this downward pressure, the swing end of the swing arm 5 swings upward, causing the scraping mold 7, fixing rod 8, and other components to move upward synchronously until the scraping groove 71 contacts the optical cable component 3, scraping off the oil from its surface. If the swing end continues to swing upward, the spring 9 is compressed to prevent the optical cable component 3 from bending. When the arc-shaped side of the cam 62 is no longer in contact with the swing arm 5, the scraping mold 7, fixing rod 8, and other components mounted on the swing end swing downward under their own weight, moving the scraping mold 7 away from the optical cable component 3 and stopping the scraping operation. This cycle repeats continuously, achieving intermittent oil scraping of the optical cable component 3, avoiding insufficient oil coverage due to continuous scraping, which would affect the manufacturing quality of the optical cable. Therefore, this utility model can control the amount of grease on the surface of the optical cable component 3 with a single device. It is simple to operate, simplifies the structural setup, does not take up too much space, and avoids the problem of excessive grease replenishment and wasted grease scraping work caused by secondary grease replenishment.

[0042] Example 2 of the intermittent oil scraping device for optical cables in this utility model:

[0043] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that the scraping mold 7 is located above the swing rod 5, the swing rod 5 is located below the optical cable component 3, and the fixing rod 8 is fixed to the swing rod 5 by the upper stop 10 and the lower stop 11. At this time, the fixing rod 8 passes through the scraping mold 7, and the spring 9 is sleeved on the outside of the fixing rod 8 and is mounted between the scraping mold 7 and the swing rod 5. Specifically, it presses against the upper stop 10. Of course, if the diameter of the spring 9 is sufficient, it can also press directly against the swing rod 5.

[0044] When in use, when the force-bearing end of the swing rod 5 is pressed, the swing end and components such as the scraper mold 7, the fixed rod 8, and the spring 9 swing upward synchronously until the scraper groove contacts the optical cable component 3. If the swing end continues to swing upward, the spring 9 is compressed.

[0045] Example 3 of the intermittent oil scraping device for optical cables in this utility model:

[0046] like Figure 7As shown, the difference between this embodiment and embodiment 2 is that although the scraping mold 7 is located above the swing rod 5, the groove of the scraping groove is arranged downwards, and the two fixed rods 8 are fixedly connected to the scraping mold 7. At the same time, the two fixed rods 8 are fixed to the swing rod 5 through the upper stop 10 and the lower stop 11. That is, the scraping mold 7 and the swing rod 5 are rigidly connected. When the force-bearing end of the swing rod 5 is pressed, the swinging end, the scraping mold 7, and the fixed rods 8 swing upwards synchronously, and the scraping groove moves away from the optical cable component 3 to stop scraping oil. When the force-bearing end of the swing rod 5 is not pressed, the swinging end, the scraping mold 7, and the fixed rods 8 swing downwards under their own weight, and the scraping groove contacts the optical cable component 3 to scrape oil. Intermittent scraping operation can also be achieved, except that oil is scraped when swinging downwards.

[0047] Example 4 of the intermittent oil scraping device for optical cables in this utility model:

[0048] like Figure 8 As shown, the difference between this embodiment and embodiment 3 is that the swing arm 5 is located above the optical cable component 3, and the scraping mold 7 is directly fixed on the lower side of the swing arm 5. That is, the scraping mold 7 and the swing arm 5 are still rigidly connected. At this time, when the force-bearing end of the swing arm 5 is pressed, the swing end and the scraping mold 7 swing upward synchronously, and the scraping groove moves away from the optical cable component 3 to stop scraping oil. When the force-bearing end of the swing arm 5 is not pressed, the swing end and the scraping mold 7 swing downward under their own weight, and the scraping groove contacts the optical cable component 3 to scrape oil. Intermittent scraping operation can also be achieved, except that oil is scraped when swinging downward.

[0049] Example 5 of the intermittent oil scraping device for optical cables in this utility model:

[0050] Unlike Embodiment 1, this embodiment omits the lower stop, achieving essentially the same effect as Embodiment 1. However, it does not limit the upward movement of the fixed rod relative to the swing, but this does not affect its use.

[0051] In other embodiments of the intermittent oil scraping device for optical cables: the scraping groove can also be a U-shaped groove or a V-shaped groove.

[0052] In other embodiments of the intermittent oil scraping device for optical cables: the cam may have only one pressing part in the circumferential direction, and only presses down the force-bearing end of the rocker arm once per revolution. For example, the cam is a circular wheel, but it is eccentrically mounted on the output shaft of the motor.

[0053] In other embodiments of the intermittent oil scraping device for optical cables: the rotational power source in the force application mechanism can also be a hydraulic motor or a pneumatic motor.

[0054] In other embodiments of the intermittent oil scraping device for optical cables: when the force-applying mechanism presses down on the force-receiving end to make the swing end swing upward, the force-applying mechanism can be a motor, or a mechanism capable of outputting reciprocating linear motion, such as an electric push rod, a hydraulic cylinder, or a pneumatic cylinder. At this time, the telescopic rod of the electric push rod, hydraulic cylinder, or pneumatic cylinder moves up and down reciprocally. When it moves downward, it presses down on the force-receiving end of the swing arm, and when it moves upward, it cancels the force application. Moreover, the telescopic rod of the electric push rod, hydraulic cylinder, or pneumatic cylinder does not need to be connected to the swing arm; it only needs to make top-pressing contact.

[0055] In other embodiments of the intermittent oil scraping device for optical cables: there may be only one fixed rod, for example a square rod, to prevent the scraping mold from rotating relative to the swing rod.

[0056] In other embodiments of the intermittent oil scraping device for optical cables: the upper stop and the lower stop can also be made of shaft elastic retaining rings, in which case the external thread is no longer machined on the fixing rod, but a groove is machined instead.

[0057] In other embodiments of the intermittent oil scraping device for optical cables: the upper or lower stop can also be a shoulder or collar integrally formed on the fixed rod.

[0058] In other embodiments of the intermittent oil scraping device for optical cables: the swing arm can be a force-saving lever. In this case, the swing end cannot swing downward by its own weight. An electric push rod, hydraulic cylinder or pneumatic cylinder is required as the force-applying mechanism. The telescopic rod of the electric push rod, hydraulic cylinder or pneumatic cylinder needs to be hinged to the force-receiving end of the swing arm. In this case, the up and down swing of the swing end of the swing arm is due to the action of the force-applying mechanism.

[0059] In other embodiments of the intermittent oil scraping device for optical cables: the force application mechanism can also be installed separately on the collection trough, or installed on the collection trough by another bracket, instead of being installed on the same mounting base as the swing arm.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. An intermittent oil scraping device for optical cables, characterized in that, The device includes a mounting base for fixing to a collection trough, on which a swing arm is rotatably mounted. The intermittent oil scraping device for optical cables also includes a force-applying mechanism for fixing to the collection trough or the mounting base and for applying force to one end of the swing arm to make the other end of the swing arm swing. The end of the swing arm that is acted upon by the force-applying mechanism is the force-receiving end, and the other end is a swing end that can swing up and down. A scraping mold is installed on the swing end, and the scraping mold is provided with a scraping groove for approaching the optical cable component to scrape off the oil on the surface of the optical cable component when the swing end swings up or down.

2. The intermittent oil scraping device for optical cables according to claim 1, characterized in that, The force-applying mechanism is used to press down the force-receiving end to make the swing end swing upward. The swing rod is a force-reducing lever so that when the force-applying mechanism cancels the force, the swing end swings downward using its own weight.

3. The intermittent oil scraping device for optical cables according to claim 2, characterized in that, The grease scraping groove is used to scrape off the grease on the surface of the optical cable when the swing end swings upward. A spring is provided between the grease scraping mold and the swing arm to allow the swing arm to continue swinging upward for a certain distance after the grease scraping groove contacts the optical cable.

4. The intermittent oil scraping device for optical cables according to claim 3, characterized in that, A fixed rod is connected to the scraping mold. The scraping mold is located below the swing rod. The fixed rod extends upward through the swing rod. The part of the fixed rod above the swing rod is fitted with the spring and an upper stop is installed on the fixed rod. The spring is mounted between the upper stop and the swing rod.

5. The intermittent oil scraping device for optical cables according to claim 4, characterized in that, A lower stop is also installed on the fixed rod. The lower stop is located below the swing arm and is used to stop the swing arm.

6. The intermittent oil scraping device for optical cables according to claim 3, characterized in that, A fixed rod is connected to the swing arm, the scraping mold is located above the swing arm, the fixed rod passes through the scraping mold, and the spring is sleeved on the outside of the fixed rod and topped between the scraping mold and the swing arm.

7. The intermittent oil scraping device for optical cables according to any one of claims 4 to 6, characterized in that, The fixing rod is a round rod, and there are two fixing rods arranged at intervals along the length of the swing rod. Each fixing rod is fitted with the aforementioned spring.

8. The intermittent oil scraping device for optical cables according to any one of claims 2 to 6, characterized in that, The force-applying mechanism includes a rotary power source and a cam installed at the output end of the rotary power source. The cam is used to intermittently press down on the force-receiving end during rotation.

9. The intermittent oil scraping device for optical cables according to claim 8, characterized in that, The cam includes two arcuate sides arranged symmetrically with respect to the cam's rotation center, and a flat side connected between the two ends of the arcuate sides. The arcuate sides are used to press down on the force-bearing end.

10. The intermittent oil scraping device for optical cables according to any one of claims 1 to 6, characterized in that, The groove for scraping the plaster is an arc-shaped groove.

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