CN2685374Y - Floating head for scraper - Google Patents

Abstract

A floating cutter head of scraper is composed of a casing, a drive axle pivoted to said casing, a blade wheel with blades at one end of said drive axle, a driven inclined plane matched with said driven inclined plane at one end of cutter head, several radially extended cutting edges at one end of said driven inclined plane, an end cover with several through holes, and a cutter head with a central pivot. When the cutter head is driven by the driving shaft to rotate and simultaneously is acted by a suction force, a small gap is formed between the cutting edge of the cutter head and the end cover, and when foreign matters are sucked into the through hole of the end cover to be cut, the cutter head is pushed out to enable the cutting edge to be attached to the end cover for cutting. The utility model discloses can reduce the wearing and tearing probability of cutting edge, increase of service life.

Description

Floating head for scraper

technical field

The utility model relates to a floating cutter head of a scraper capable of trimming and finishing fabric threads or animal hair.

Background technique

Existing scrapers for scraping off fabric thread ends are generally provided with a cover with several perforations, and a driven rotating blade is provided inside the cover, and the cutting edge of the blade is flat against the inner surface of the cover. , when the cutting edge rotates, it produces a shearing effect with the perforated end face on the cover, and then scrapes off the thread protruding from the surface of the fabric and protruding into the perforation of the cover.

However, the existing scraper has the disadvantage that the blade is easily worn and blunted, so that the thread ends cannot be scraped off smoothly. The side of the body rotates, so it is easy to wear and passivate and cannot exert the normal trimming effect.

In addition, the scraping effect of the existing scraper is not ideal. The reason is that the thread ends of the finished garments are soft and adhere to the finished product due to static electricity, which is not easy to be repaired. However, the ready-made garments are lifted and trimmed outwards, so that holes are cut and the finished products are damaged without knowing it, resulting in defective products. Also, those who have pets at home will also use the scraper to trim the animal hair. However, it is also easy to cause injury because it is too close to the animal skin and the animal moves wildly. Therefore, the existing scraper has the disadvantages of easy passivation of the blade, poor effect of trimming clothing threads and animal hair, etc., and it has been improved. necessary.

Utility model content

In order to overcome the disadvantages of existing scraper blades such as easy bluntness, poor trimming of garment threads and animal hair, the utility model provides a floating cutter head of a scraper, which is usually separated from the cover and only trims when trimming. It rotates flat against the cover body during operation to reduce the wear probability of the blade and prolong the service life.

The technical scheme that the utility model solves its technical problem adopts is:

A floating cutter head of a scraper is characterized in that it includes: a driving shaft, which is pivotally arranged in a casing, one end of the driving shaft is set as a driving inclined plane, and the opposite end is set as a pivot shaft, and the peripheral edge of one end adjacent to the pivot shaft is An impeller with protruding blades is formed; a cutter head has a cutter head seat, one end of the cutter head seat is set as a passive inclined surface matched with the driving inclined surface, and a plurality of radially protruding blades are provided on the peripheral edge of the end away from the passive inclined surface, The cutting edge of the blade protrudes slightly from the end face of the cutter head seat, and the center of the cutter head is provided with one end of the blade and pivoted on an end cover combined with the end face of the housing. The end cover has several through holes, when the passive slope of the cutter head and the drive shaft There is a small gap between the cutting edge of the blade and the end cap when the drive bevel is fully engaged.

In the aforementioned floating cutter head of the scraper, the driving inclined plane is set in a V-shape with double inclined planes with a lower center and higher ends.

In the aforementioned floating cutter head of the scraper, the blades of the impeller extend helically along the periphery of the impeller.

The aforementioned floating cutter head of the scraper has an L-shaped airflow suction channel and an airflow output channel that are distributed in an L shape and communicate with each other. The drive shaft is pivoted on the airflow suction channel, and the end cover is combined with the airflow suction channel. The free end of the channel, one end of the pivot shaft of the drive shaft is pivotally arranged on the surrounding wall of one end of the airflow suction channel adjacent to the airflow output channel.

The aforementioned floating cutter head of the scraper has an L-shaped airflow suction channel and an airflow output channel that are distributed in an L shape and communicate with each other. The drive shaft is pivoted on the airflow suction channel, and the end cover is combined with the airflow suction channel. The free end of the channel, one end of the pivot shaft of the drive shaft is pivotally arranged on the surrounding wall of one end of the airflow suction channel adjacent to the airflow output channel.

In the floating cutter head of the aforementioned scraper, the pivot end surface of the drive shaft is concavely provided with a non-circular groove communicating with the outside world, and a bracket is combined in the housing, and several air holes are provided on the bracket. The drive shaft is pivoted, and the through hole on the end cover is tapered to the inside of the housing, and the periphery of the end with a smaller diameter is protruding.

In the floating cutter head of the aforementioned scraper, a through groove is provided on the casing wall between the bracket and the impeller, and a push cover for controlling the opening and closing of the through groove is provided on the through groove.

With the above-mentioned technical means, the utility model can drive the cutter head to rotate by means of the drive shaft, and at the same time use the suction effect to separate the blade of the cutter head from the end cover. When foreign objects such as fabric threads or animal hair enter the through hole of the end cover , so that the blade is slightly resisted, and the drive shaft pushes the cutter head out and rotates through its driving slope, so that the blade is attached to the end cover and rotates to form a shearing effect. If the cutting is completed without protruding foreign matter, the cutter head will be reset and separated from the end cover by suction, thereby forming a floating cutter head with clutch function, because it only makes the blade stick to the end cover when it is shearing. Therefore, it can reduce the chance of blade wear and prolong the service life of the product.

Moreover, with the help of the suction effect, the thread ends or animal hairs attached to the garments can be sucked up and cut off, not only avoiding damage to the garments and animal skins, but also the trimmed thread ends, hairs and cotton wadding can be concentrated in the vacuum cleaner, which helps Keep the environment clean and avoid cotton wool floating in the air and affecting the operator's respiratory tract.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is an exploded perspective view of the utility model.

Fig. 2 is a plan combination sectional view of the utility model.

Fig. 3 is a partial combined sectional view of the utility model when in action.

Fig. 4 is a combined plane sectional view of another embodiment of the present invention.

Explanation of symbols in the figure:

10 drive shaft 11 drive slope

12 impellers 121 blades

13 Pivots 20 Cutter Heads

21 Cutter head seat 22 Passive bevel

23 blades 24 grooves

30 shell

31 air intake channel 32 air output channel

33 way slot 35 push cover

40 end cap 41 through hole

410 protrusions 42 protrusions

43 plastic shell 44 bearing

50 brackets

51 vent hole 60 motor shaft

Detailed ways

Please refer to shown in Fig. 1, the floating cutter head device of the scraper provided by the utility model is made up of a drive shaft 10 and a cutter head 20, and the drive shaft 10 is driven to rotate by power, and the drive shaft 10 faces One end of the cutter head 20 is set as a lower V-shaped driving slope 11 in the middle and higher at both ends, and the cutter head 20 has a cutter head seat 21, and the cutter head seat 21 has two end faces, and one end is provided with the drive slope 11 mutually. The protruding V-shaped passive slope 22 in the middle of the match is provided with three radially extending inclined blades 23 at the opposite end. The driving slopes 11 of the driving shaft 10 are bonded together. When the drive shaft 10 rotates and the cutter head 20 is subjected to suction simultaneously, the cutter head 20 is attached to the drive shaft 10 and rotates. The rotating speed will slow down and produce a speed difference with the drive shaft 10, and the abutment surface of the passive slope 22 is driven by the drive slope 11 to push out from the lower to the higher, that is, the blade 23 will be pushed out to perform the cutting operation.

Above-mentioned is the summary of the utility model, and its specific embodiment and operation process are as follows:

See also shown in Fig. 2, drive shaft 10 of the present utility model is provided with an impeller 12 far away from the end of cutter head 20, and impeller 12 forms an axially protruding pivot 13 far away from the center of drive shaft 10 end, and impeller 12 is provided with a shaft along the center. The periphery of the shaft is a helical blade 121 extending helically, and the entire drive shaft 10 is placed inside a housing 30, which is generally L-shaped, and an airflow suction passage 31 that can accommodate the drive shaft 10 is formed inside. And an airflow output channel 32 communicated with the airflow suction channel 31. The pivot 13 of the drive shaft 10 is pivotally arranged on the airflow suction passage 31 and is positioned at the peripheral wall of one end of the airflow output passage 32. In addition, an end cover 40 is combined on the free end of the airflow suction passage 31. There are several The through-holes 41 are in the shape of a tapered taper toward one end of the air intake channel 31 . A stud 42 protrudes from the center of the end face of the end cover 40 , and a bearing 44 is sleeved around the stud 42 . The end of the cutter head 20 provided with the blade 23 is relatively concavely provided with a groove 24 for rotating with the bearing 44 pivotally arranged on the stud 42 . In addition, a bracket 50 is combined on the air intake channel 31 of the casing 30, and the center of the bracket 50 is pivoted for the drive shaft 10 to reduce the vibration force of the drive shaft 10 and enhance the stability of rotation. In addition, bolts are threaded from the outside of the housing 30 and fixed on the peripheral wall of the bracket 50 , and several ventilation holes 51 are formed on the bracket 50 .

When in use, an air suction device such as a vacuum cleaner is connected to one end of the airflow output channel 32 of the housing 30, and the air from the outside is sucked into the airflow suction channel 31 through the through hole 41 of the end cover 40 by suction and flows along the periphery of the impeller 12. And make the impeller 12 with blade 121 rotate to generate wind suction force, can make the drive shaft 10 drive the cutter head 20 to rotate, because the cutter head 20 is subjected to the effect of suction at the same time, so it will stick to the driving slope of the drive shaft 10 as shown in the figure 11. Now, the blade 23 of the cutter head 20 will be slightly separated from the end cap 40, and when the end cap 40 is close to the object to be cut such as the fabric surface or animal hair, the thread end and the like will be sucked into the through hole of the end cap 40 due to the suction force of the wind At 41 o'clock, the blade 23 of the cutter head 20 is hindered by the thread of the fabric or the hair of the animal, the rotating speed of the cutter head 20 will slow down and produce a speed difference with the drive shaft 10, and the bonding surface of the passive inclined surface 22 is subject to the force of the driving inclined surface 11. The drive climbs from a low place to a high place, that is, the blade 23 will push out and stick to the inner surface of the end cover 40, and form a shearing action with the end surface of the end cover 40 as shown in Figure 3, and will protrude from the through hole 41. Objects such as the threads of the fabric, or animal hair are scraped off and sucked into the airflow suction channel 31 and the airflow output channel 32, and then collected in the dust bag of the suction device. Again, when there is no protruding object in the through hole 41 of the end cover 40, the cutter head 20 returns to rotate at the same speed as the drive shaft 10 again, and is reset and clamped in the drive slope 11 of the drive shaft 10 by wind suction, so that The blade 23 is separated from the end cap 40, and since the cutter head 20 can be automatically clutched, it will not be attached to the end face of the end cap 40 during idling, which can reduce the wear probability of the blade 23.

Referring again to Fig. 3, the preferred embodiment of the present invention is that the periphery of the end cap 40 made of metal is covered in a plastic body 43, and then the plastic body 43 is screwed to the free end of the housing 30 to cooperate. thread. The through hole 41 of the end cover 40 forms a protrusion 410 at the end facing the cutter head 20 , and the blade 23 of the cutter head 20 is attached to the end surface of the protrusion 410 to rotate. In addition, a through slot 33 is provided on the surrounding wall of the housing 30 between the bracket 50 and the impeller 12, and a push cover 35 is provided on the through slot 33 to control the strength of the wind suction.

The aforementioned embodiment of the utility model uses the suction generated by the suction device to rotate the drive shaft, and then drives the cutter head to rotate. It can also be inserted into the pivot 13 of the drive shaft 10 with a motor shaft 60 as shown in FIG. 4 Inside. The pivot 13 is pivotally arranged on the housing 30, and its end surface is concavely provided with a non-circular slot. The end surface of the pivot 13 communicates with the outside world, so that a motor shaft 60 of a motor can be inserted into the pivot 13 accordingly. The free end of the airflow output channel 32 of the casing 30 can be socketed with a dust bag, and when the motor is started, the drive shaft 10 and the cutter head 20 can be driven to rotate. Because the drive shaft 10 is provided with blades 121, so when the drive shaft 10 rotates, the blades 121 also rotate simultaneously to generate suction force, so that the cutter head 20 is attached to the drive slope 11 of the drive shaft 10 as described above, and can be Push the top out to trim the object, because its clutch action is the same as the foregoing, so it will not be repeated.

It can be seen from the above that the utility model can make the cutter head in a floating shape, that is, when no trimmings enter, the blade and the end cover will automatically separate, and when trimmings enter, the cutter head will automatically fit on the The end cap is trimmed, and this design can prevent the blade from attaching to the end cap for a long time to rotate, thereby reducing its chance of wear and prolonging its service life.

And through the suction effect, the lint or animal hair attached to the garment can be inhaled and cut, which can not only improve the efficiency and avoid damage to the garment and animal skin, but also the trimmed lint, hair, cotton wool and other substances are collected in the dust bag Inside.

Claims (7)

1. A floating cutter head of a scraper, characterized in that, comprising: A driving shaft is pivotally arranged in a casing, one end of the driving shaft is set as a driving slope, and the opposite end is set as a pivot, and an impeller with protruding blades is formed on the periphery of one end adjacent to the pivot; A cutter head, which has a cutter head seat, one end of the cutter head seat is set as a passive inclined surface matched with the driving inclined surface, and the periphery of the end away from the passive inclined surface is provided with several radially protruding blades, and the edge of the blade slightly protrudes from the cutter head On the end face of the seat, the cutter head is provided with a blade and one end center is pivoted on an end cover combined with the end face of the housing. The end cover has several through holes. There is a small gap between the cutting edge and the end cap. 2 . The floating cutter head of the scraper according to claim 1 , wherein the driving inclined planes are arranged in a V-shape with double inclined planes with a lower center and higher ends. 3 . 3. The floating cutter head of the scraper according to claim 1 or 2, characterized in that the blades of the impeller extend helically along the periphery of the impeller. 4. The floating cutter head of the scraper according to claim 1, characterized in that the housing has an L-shaped airflow suction channel and an airflow output channel that are distributed in an L shape and communicate with each other, and the drive shaft is pivotally arranged on the airflow The end cover is combined with the free end of the airflow suction path, and one end of the pivot shaft of the driving shaft is pivotally arranged on the peripheral wall of the end of the airflow suction path adjacent to the airflow output path. 5. The floating cutter head of the scraper according to claim 3, characterized in that the housing has an L-shaped airflow suction channel and an airflow output channel that are distributed in an L shape and communicate with each other, and the drive shaft is pivotally arranged on the airflow The end cover is combined with the free end of the airflow suction path, and one end of the pivot shaft of the driving shaft is pivotally arranged on the peripheral wall of the end of the airflow suction path adjacent to the airflow output path. 6. The floating cutter head of the scraper according to claim 5, characterized in that the pivot end surface of the drive shaft is concavely provided with a non-circular groove communicating with the outside world, and a bracket is combined in the housing, the bracket There are several ventilation holes on the top, the center of the bracket is used for the pivoting of the drive shaft, and the through hole on the end cover is tapered to the inside of the shell, and the peripheral edge of the smaller hole is set to protrude shape. 7. The floating cutter head of the scraper according to claim 6, characterized in that a through groove is provided on the surrounding wall of the housing between the bracket and the impeller, and a push button for controlling the opening and closing of the through groove is provided on the through groove. build.

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