CN210678875U

CN210678875U - Stroke limiting structure

Info

Publication number: CN210678875U
Application number: CN201921805676.2U
Authority: CN
Inventors: 李景照; 梁厚超; 李卫
Original assignee: Shunde Polytechnic
Current assignee: Shunde Polytechnic
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-05
Anticipated expiration: 2029-10-24

Abstract

The utility model provides a stroke limit structure, including stroke induction mechanism, stroke stop gear, stroke sensor, stroke stop gear set up in the hair cover automatic cutout equipment between feeding mechanism and the dabber mechanism, stroke sensor is used for detecting target in place or returning of feeding mechanism, and stroke stop gear is mechanical spacing. The utility model discloses a dual mechanism protects feeding mechanism and dabber mechanism, makes equipment be difficult for receiving the damage to improve equipment's reliability.

Description

Stroke limiting structure

Technical Field

The invention relates to the technical field of machining, in particular to a stroke limiting structure.

Background

In daily building decoration engineering, a roller brush is frequently used when large-area paint is rolled and coated, a special roller brush is needed, and the rolling surface range is wide, so that the roller brush is the most labor-saving and time-saving brush tool, and particularly after an extension rod is connected, a wall surface or a ceiling can be easily painted. The roller hair sleeve at the front end of the roller brush is the key of the roller brush.

The fur sleeves are long after being produced, and can be processed or used again after being cut off, and the existing fur sleeve automatic cutting equipment is adopted to cut off the fur sleeves. The feeding mechanism in the automatic sleeve cutting equipment is mainly used for clamping sleeves and conveying the sleeves to a mandrel sleeved on a mandrel mechanism. In the working process, the feeding mechanism can be continuously contacted with the mandrel mechanism, and if the stroke is not controlled, the equipment can be damaged, so that the reliability of the equipment is improved by the stroke limiting structure.

Disclosure of Invention

The invention aims to provide a stroke limiting structure which can improve the reliability of equipment so as to overcome the defects of the prior art.

The technical scheme for solving the technical problem is as follows: the stroke limiting structure comprises a stroke sensing mechanism, wherein the stroke sensing mechanism comprises a stroke sensor, the stroke sensor is arranged between a feeding mechanism and a mandrel mechanism in the automatic felt sleeve cutting equipment, and the stroke sensor is used for detecting the in-place or return of the feeding mechanism.

The stroke sensor is arranged on a mandrel guide rod of a mandrel mechanism in the automatic loop cutting equipment, and penetrates through the secondary mandrel support.

The automatic wool sleeve cutting device is characterized by further comprising a stroke limiting mechanism, wherein the stroke limiting mechanism comprises a first limiting part and a second limiting part, and the first limiting part and the second limiting part are arranged between the feeding mechanism and the mandrel mechanism in the automatic wool sleeve cutting device.

The first limit and the second limit are mechanical limits; the first limit is a stud and is arranged on the end surface, close to the mandrel mechanism, of the feeding middle seat of the feeding mechanism; the second limit is formed by the end of a mandrel guide rod of the mandrel mechanism, which penetrates through the mandrel secondary support and extends out.

The invention has the beneficial effects that:

the invention provides a stroke limiting structure which comprises a stroke sensing mechanism and a stroke limiting mechanism, wherein the stroke sensing mechanism is soft limiting, the stroke limiting mechanism is mechanical limiting, and a feeding mechanism and a mandrel mechanism are protected by a double mechanism, so that equipment is not easily damaged, and the reliability of the equipment is improved.

Drawings

Fig. 1 is a schematic structural view of an automatic cutting apparatus for a glove according to the present invention.

Fig. 2 is a side view of the automatic cutting apparatus for a sleeve of the present invention.

Fig. 3 is a cross-sectional view taken along the plane a-a in fig. 2.

Fig. 4 is a cross-sectional view taken along the plane B-B in fig. 2.

Fig. 5 is a schematic structural installation diagram of the feeding mechanism, the feeding mechanism and the material sensing mechanism in the invention.

Fig. 6 is a schematic structural installation diagram of the feeding mechanism of the present invention.

Fig. 7 is a side view of the frame of the present invention.

Fig. 8 is a cross-sectional view taken along plane C-C of fig. 2.

Fig. 9 is a cross-sectional view taken along plane D-D of fig. 2.

Fig. 10 is a schematic view of the installation of one of the cutting mechanism, the mandrel mechanism and the adjusting mechanism of the present invention.

FIG. 11 is a schematic view of another arrangement of the cutting mechanism, spindle mechanism and adjustment mechanism of the present invention.

FIG. 12 is a schematic view of the installation of a further structure of the cutting mechanism, mandrel mechanism and adjustment mechanism of the present invention.

FIG. 13 is an exploded view of the mandrel and the tightening mechanism of the present invention.

Fig. 14 is an exploded view of the feeding mechanism, the feeding sensing mechanism and the stroke sensing mechanism of the present invention.

Fig. 15 is an enlarged view of region E in fig. 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. "plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, a fixed connection unless expressly specified or limited otherwise. Can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 3, 5, 14 and 15, a stroke limiting structure applied to automatic cutting equipment for a woolen sleeve comprises a stroke sensing mechanism and a stroke limiting mechanism.

The stroke sensing mechanism includes a stroke sensor 95, which is connected to the controller 13. The stroke sensor 95 is mounted on the mandrel sub-mount 42 and is used for detecting the in-place or return of the feeding mechanism, and when the feeding mechanism is in place, the connecting seat 351 of the feeding mechanism touches the feeding sensor 92.

The travel limiting mechanism comprises a first limiting 96 and a second limiting 97 which are both mechanical limiting. The first limit 96 is a stud and is arranged on the end surface of the feeding middle seat 31 close to the mandrel mechanism; a second stop 97 is formed by the end of mandrel guide 49 that extends through mandrel sub-mount 42.

The present invention is further described with reference to the above-mentioned automatic cutting device for a sleeve, and with reference to fig. 1 to 15, the present invention further includes a machine table 1, a frame 11, a machine cover 12, a controller 13, a feeding mechanism, a mandrel mechanism, an adjusting mechanism, a tightening mechanism, a cutting mechanism, a discharging mechanism, a material sensing mechanism, and a feeding sensing mechanism.

The frame 11 is disposed on one side of the machine 1, and the cover 12 is disposed on the machine 1. The machine frame 11 is formed by combining a plurality of rods, the machine table 1 is formed by combining a table board 101 and a plurality of rods, a feed opening 102 is arranged on the table board 101, and the machine table 1 is provided with a feed chute communicated with the feed opening 102. As shown in fig. 1, the cover 12 is provided with a flip cover 121, which facilitates maintenance and repair of the device.

The controller 13 is arranged on the shell, the feeding mechanism and the feeding mechanism are arranged on the frame 11, and the mandrel mechanism and the cutting mechanism are arranged on the machine table 1; the feeding mechanism and the mandrel mechanism are arranged oppositely and located on two sides of the feed opening 102, and the cutting mechanism is arranged oppositely and located on the other two sides of the feed opening 102.

The frame 11 is provided with two material troughs 111 for placing the sleeves 10 to be cut. Each trough 111 is matched with a feeding mechanism, and the feeding mechanism is arranged on one side of the trough 111.

The feed mechanism includes four material loading cylinders 2, all is connected with controller 13. The piston rods of the feeding cylinders 2 are all directed to the trough 111, and can extend to the space between the two sleeves 10 so as to separate the two sleeves 10 at the bottommost part of the trough 111. The central axes of the piston rods of the two feeding cylinders 2 are located on a horizontal plane P1, the central axes of the piston rods of the other two feeding cylinders 2 are located on a horizontal plane P2, the vertical distance between the horizontal plane P1 and the horizontal plane P2 is slightly larger than the outer diameter of the sleeve 10, and the vertical distance between the horizontal plane P2 and the bottom of the trough 111 is slightly larger than the outer diameter of the sleeve 10.

The sleeves 10 to be cut are placed in the chute 111, and the piston rod of the feeding cylinder 2 is extended to separate the two sleeves 10 located at the lowermost part of the chute 111. During operation, after the bottommost sleeve 10 is conveyed to the end of cutting, the piston rod of the feeding cylinder 2 located on the horizontal plane P2 retracts, after the sleeve 10 located between the horizontal plane P1 and the horizontal plane P2 falls to the bottom of the trough 111, the piston rod of the feeding cylinder 2 located on the horizontal plane P2 extends, the piston rod of the feeding cylinder 2 located on the horizontal plane P1 retracts, and the piston rod of the feeding cylinder 2 located on the horizontal plane P1 extends after the sleeve 10 located above the horizontal plane P1 falls. The operation is repeated in a circulating way.

The feeding mechanism comprises a feeding base 3, a feeding middle seat 31, a feeding slide rail 32, a feeding slide rail seat 321, a feeding cylinder 33, a feeding cylinder seat 331, a clamp 34, a clamp seat 341 and a clamp cylinder 35, wherein the feeding cylinder 33 and the clamp cylinder 35 are connected with the controller 13.

The feeding base 3 is symmetrically fixed on the frame 11, the feeding slide rail seats 321 are respectively fixed on the feeding base 3, two sides of the bottom of the feeding middle seat 31 are respectively fixedly connected with one end of the feeding slide rail 32, and the feeding slide rail 32 is slidably connected with the feeding slide rail seats 321. The feeding cylinder 33 is mounted on the frame 11 through a feeding cylinder seat 331, a piston rod of the feeding cylinder is fixedly connected with the feeding middle seat 31, and the feeding cylinder 33 drives the feeding middle seat 31 to move towards the direction of the mandrel mechanism.

Each trough 111 is matched with a pair of clamps 34, and the clamps 34 are in bracket shapes and are oppositely arranged. The clamp cylinder 35 is installed on the feeding middle seat 31, and the piston rods of the clamp cylinder are arranged oppositely. The clamp seats 341 are arranged side by side and are fixedly connected to the piston rods of the clamp cylinders 35 through the connecting seats 351, respectively. The clamps 34 with the inner sides facing the same side are mounted on the same clamp seat 341, and when the device works, the clamp cylinder 35 drives the clamps 34 to move relatively to clamp the glove 10. The inside of the clamp 34 is provided with anti-slip ribs to enable it to better grip the glove 10.

The mandrel mechanism comprises a mandrel base 4, a mandrel main support 41, a mandrel secondary support 42, a mandrel slide rail 43, a mandrel slide rail seat 431, a mandrel cylinder 44, a mandrel cylinder seat 441, a mandrel 45 and a mandrel motor 46, wherein the mandrel cylinder 44 and the mandrel motor 46 are connected with the controller 13.

The mandrel base 4 is fixed on the machine table 1, the mandrel slide rail 43 is fixed on the mandrel base 4, the mandrel main support 41 and the mandrel secondary support 42 are respectively and fixedly connected with the mandrel slide rail seat 431, and the mandrel slide rail 43 is in sliding connection with the mandrel slide rail seat 431.

The mandrel sub-support 42 is disposed near the feed opening 102 and connected to an adjusting mechanism, and the mandrel sub-support 42 can be driven to move by the adjusting mechanism. The adjusting mechanism comprises an adjusting support 5, an adjusting screw rod 51, an adjusting piece 52 and a transmission piece 53, wherein the adjusting screw rod 51 is installed on the mandrel base 4 through the adjusting support 5, and the transmission piece 53 is in threaded connection with the adjusting screw rod 51. The adjusting part 52 is connected with the adjusting screw rod 51, and the adjusting part 52 can be rotated to drive the adjusting screw rod 51 to rotate, wherein the adjusting part 52 is an adjusting hand wheel or an adjusting handle. The transmission piece 53 is fixedly connected with the mandrel sub-support 42 through the connecting piece 531, when the adjusting piece 52 is rotated to drive the adjusting screw rod 51 to rotate, the transmission piece 53 moves linearly, and the mandrel sub-support 42 moves along with the linear movement, so that the cutting length of the rough sleeve 10 is adjusted. In addition, the adjusting screw 51 is provided with an adjusting scale 521 for adjustment.

The mandrel cylinder 44 is mounted on the mandrel base 4 through a mandrel cylinder seat 441, a piston rod of the mandrel cylinder is fixedly connected with the mandrel main support 41, and the mandrel cylinder 44 drives the mandrel main support 41 to move towards the feeding mechanism. The mandrel main support 41 is provided with a mandrel bearing seat 411, the mandrel secondary support 42 is provided with a mandrel guide tube 421, the mandrel 45 is installed on the mandrel main support 41 and the mandrel secondary support 42 through the mandrel guide tube 421 and the mandrel bearing seat 411, and the mandrel 45 can pass through the mandrel guide tube 421.

The mandrel motor 46 is installed on the mandrel main support 41, the output shaft of the mandrel motor 46 is provided with a mandrel driving synchronous pulley 471, one end of the mandrel 45 close to the mandrel main support 41 is provided with a mandrel driven synchronous pulley 472 respectively, and the mandrel driving synchronous pulley 471 and the mandrel driven synchronous pulley 472 are provided with a synchronous belt on the mandrel 45. When the mandrel motor 46 works, the mandrel driving synchronous belt wheel 471 is driven to rotate through the rotation of the output shaft of the mandrel motor 46, the mandrel driven synchronous belt wheel 472 is driven to rotate through the mandrel synchronous belt 47, and then the mandrel 45 is driven to rotate.

At least one jacking mechanism is arranged, and the invention is provided with two jacking mechanisms. The tight mechanism in top sets up the front end at dabber 45 to guarantee the power of being connected between dabber 45 and the hair cover 10, avoid the condition of skidding to appear between the two.

The jacking mechanism comprises a jacking block 6, an elastic piece (not shown) and a fixing pin (not shown), wherein the front end of the mandrel 45 is provided with a slotted hole 451 and a fixing hole 452, the fixing hole 452 is communicated with the slotted hole 451 and is perpendicular to the slotted hole 451, the jacking block 6 is arranged in the slotted hole 451, the elastic piece is arranged between the jacking blocks 6, and the fixing pin is arranged in the fixing hole 452 to limit the jacking block 6 to prevent the jacking block 6 from falling out of the slotted hole 451.

One side of the top block 6 is provided with an arc-shaped position 61, two ends of the top block 6, which are positioned at the arc-shaped position 61, are respectively provided with a buckling part 62, one buckling part 62 is arranged at the outer side, and the other buckling part 62 is arranged at the inner side. The top blocks 6 are buckled by the buckling parts 62, so that the top blocks cannot be separated. An elastic element is arranged between the top blocks 6 and is arranged in the arc-shaped position 61, the top blocks 6 are kept ejected out of the slotted hole 451 by applying pushing force to the top blocks 6 through the elastic element, a fixing pin is inserted into the fixing hole 452 and penetrates through the arc-shaped position 61, and the top blocks 6 cannot be separated from the slotted hole 451, wherein the elastic element can be a spring.

In addition, a mandrel guide rail seat 48, a mandrel guide block 481 and a mandrel guide rod 49 are also arranged. The mandrel guide seat 48 is fixed on the mandrel base 4, and the mandrel guide block 481 is fixed at the bottom of the mandrel base 4 and is slidably connected with the mandrel guide seat 48. The mandrel guide rod 49 penetrates through the mandrel secondary support 42 and the mandrel main support 41, one end of the mandrel guide rod, which is close to the mandrel secondary support 42, is fixed on the mandrel secondary support 42, and one end of the mandrel guide rod, which is close to the mandrel main support 41, is provided with a limiting block 491, and the limiting block 491 cannot penetrate through the mandrel main support 41.

The cutting mechanisms are respectively provided on both sides on the table 101, and are used for cutting the gloves 10. The cutting mechanism comprises a cutting base 7, a cutting middle base 71, a cutting slide rail 72, a cutting slide rail base 721, a cutting air cylinder 73, a cutting motor 74, a cutting motor base 741, a cutting knife 75, a cutting rotating shaft 76 and a cutting bearing base 761, wherein the cutting air cylinder 73 and the cutting motor 74 are connected with the controller 13.

The cutting base 7 is installed on the machine platform 1, the cutting slide rail 72 is fixed on the cutting base 7, the cutting middle seat 71 is fixedly connected with the cutting slide rail seat 721, and the cutting slide rail 72 is slidably connected with the cutting slide rail seat 721. The cutting cylinder 73 is arranged on the side part of the cutting base 7, the piston rod of the cutting cylinder 73 is fixedly connected with the cutting middle seat 71, and the cutting middle seat 71 is driven by the cutting cylinder 73 to move towards the direction of the woolen sleeve 10.

The cutting motor 74 is mounted on the cutting middle base 71 through a cutting motor base 741, and the cutting rotation shaft 76 is mounted on the cutting middle base 71 through a cutting bearing base 761. Be equipped with cutting driving synchronous pulley 771 on the output shaft of cutting motor 74, one of cutting pivot 76 is served and is equipped with cutting driven synchronous pulley 772, is equipped with cutting hold-in range 77 between cutting driving synchronous pulley 771 and cutting driven synchronous pulley 772, and cutting knife 75 sets up on the other end of cutting pivot 76.

When the cutting motor 74 is operated, the output shaft of the cutting motor 74 rotates to drive the cutting driving synchronous pulley 771 to rotate, the cutting driven synchronous pulley 772 is driven to rotate through the cutting synchronous belt 77, then the cutting rotating shaft 76 is driven to rotate, and the cutting knife 75 is driven to rotate. The side of the cutting middle seat 71 is also provided with a cutting groove 78, and the bottom of the cutting knife 75 is arranged in the cutting groove 78 and used for collecting the lint dropped from the fur cover 10 during cutting.

The blanking mechanism comprises a blanking support 8, a blanking cylinder 81 and a blanking push rod 82, and the blanking cylinder 81 is connected with the controller 13. The blanking support 8 is fixed on the mandrel secondary support 42, the blanking cylinder 81 is installed on the blanking support 8, a piston rod of the blanking cylinder is fixedly connected with the blanking push rod 82, and the blanking push rod 82 is driven by the blanking cylinder 81 to move. After cutting, the mandrel 45 retracts, and the cutting sleeve 10 is pushed to the feed opening 102 by the feed push rod 82.

The material sensing mechanism is used for detecting whether the feeding mechanism has clamping materials and comprises a material sensing support 9 and a material sensor 91, and the material sensor 91 is connected with the controller 13. The material induction support 9 is arranged on the side part of the frame 11 close to the clamp 34, and the material sensor 91 is arranged on the material induction support 9 and points downwards to detect whether the glove 10 exists in the clamp 34.

The feeding sensing mechanism is used for detecting whether materials are conveyed in place or not, and comprises a feeding sensor 92, a feeding sensing support 93 and a cover plate 94, wherein the feeding sensor 92 is connected with the controller 13. The feeding sensor 92 is arranged on the mandrel secondary support 42, the mandrel secondary support 42 is provided with a concave cavity 422, the feeding induction support 93 is arranged in the concave cavity 422, one side of the cover plate 94 is hinged on the feeding induction support 93, and the other side of the cover plate can touch the feeding sensor 92; the hinged side of the cover plate 94 can abut against the feed sensing bracket 93, thereby limiting the range of rotation of the cover plate 94. A spring 941 is disposed between the cover plate 94 and the mandrel sub-mount 42 to keep them separated. When the feeding mechanism feeds the glove 10 to the right position, the front end of the glove 10 abuts against the cover plate 94, so that the cover plate 94 compresses the spring 941 and touches the feeding sensor 92.

The working principle of the invention is as follows:

the sleeve 10 to be cut is placed in the chute 111, the machine is started and the parameters of the controller are set, and the machine starts to operate. The controller 13 drives the piston rod of the feeding cylinder 2 to retract so that the sleeves 10 fall, and then drives the piston rod of the feeding cylinder 2 to extend so as to separate two sleeves 10 located at the bottommost part of the trough 111.

The material sensor 91, the feeding sensor 92 and the stroke sensor 95 continuously detect and communicate with the controller 13, and the controller 13 drives the cutting motor 74 to drive the cutting knife 75 to keep rotating. The controller 13 drives the mandrel cylinder 44 to drive the mandrel main support 41 to move, so that the mandrel extends towards the feeding mechanism.

The controller 13 drives the clamp cylinder 35 to drive the clamp 34 to move relatively to clamp the rough sleeve 10, and drives the feeding cylinder 33 to drive the feeding middle seat 31 to move, so that the rough sleeve 10 is sleeved on the mandrel 45, at the moment, the feeding mechanism touches the feeding sensor 92, the stroke sensor 95 detects that the feeding mechanism is in place, and sends a signal to the controller 13.

If the feeding mechanism conveys the gloves 10 to the right position, the front ends of the gloves 10 abut against the cover plate 94, so that the cover plate 94 compresses the spring 941 and touches the feeding sensor 92, and the feeding sensor 92 sends a signal to the controller 13; if the woolen sleeve 10 is not conveyed in place, the controller 13 does not receive the signal sent by the feeding sensor 92, and the controller 13 drives the feeding mechanism to release the woolen sleeve 10 and withdraw, clamp again and convey the woolen sleeve 10.

The material sensor 91 detects the gloves 10, and the feeding sensor 92 detects that the gloves 10 are conveyed in place, and sends a signal to the controller 13. The controller 13 drives the clamp cylinder 35 to drive the clamp 34 to move so as to release the wool cover 10, and then drives the feeding cylinder 33 to drive the feeding middle seat 31 to move and retract.

The feeding mechanism is retracted, the controller 13 does not receive a signal sent by the stroke sensor 95, the controller 13 drives the mandrel motor 46 to drive the mandrel 45 to rotate, the mandrel 45 drives the hair cover 10 to rotate, and then the cutting cylinder 73 is driven to drive the cutting middle seat 71 to move so that the cutting knife 75 can cut the hair cover 10.

The controller 13 drives the cutting cylinder 73 to retract the cutting middle seat 71, drives the mandrel motor 46 to stop rotating the mandrel 45, then drives the mandrel cylinder 73 to retract the mandrel 45, and drives the blanking cylinder 81 to drive the blanking push rod 82 to move to push the cut rough sleeve 10 to the blanking opening 102

The above steps are repeated in a circulating way until the bottommost hair sleeve 10 is conveyed to the end of cutting.

After the bottommost sleeve 10 is conveyed to the end of cutting, the piston rod of the feeding cylinder 2 located on the horizontal plane P2 retracts, the sleeve 10 located between the horizontal plane P1 and the horizontal plane P2 falls to the bottom of the trough 111, the piston rod of the feeding cylinder 2 located on the horizontal plane P2 extends, the piston rod of the feeding cylinder 2 located on the horizontal plane P1 retracts, and the piston rod of the feeding cylinder 2 located on the horizontal plane P1 extends after the sleeve 10 located above the horizontal plane P1 falls.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents, and all changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides a stroke limit structure which characterized in that: the automatic felt cutting device comprises a stroke sensing mechanism, wherein the stroke sensing mechanism comprises a stroke sensor, the stroke sensor is arranged between a feeding mechanism and a mandrel mechanism in the automatic felt cutting device, and the stroke sensor is used for detecting the in-place or return of the feeding mechanism.

2. The travel limit structure of claim 1, wherein: the stroke sensor is arranged on a mandrel guide rod of a mandrel mechanism in the automatic loop cutting equipment, and penetrates through the secondary mandrel support.

3. The travel limit structure of claim 1, wherein: the automatic wool sleeve cutting device is characterized by further comprising a stroke limiting mechanism, wherein the stroke limiting mechanism comprises a first limiting part and a second limiting part, and the first limiting part and the second limiting part are arranged between the feeding mechanism and the mandrel mechanism in the automatic wool sleeve cutting device.

4. The travel limit structure of claim 3, wherein: the first limit and the second limit are mechanical limits; the first limit is a stud and is arranged on the end surface, close to the mandrel mechanism, of the feeding middle seat of the feeding mechanism; the second limit is formed by the end of a mandrel guide rod of the mandrel mechanism, which penetrates through the mandrel secondary support and extends out.