CN216884180U

CN216884180U - Rotary cutter reaches package straw area cutting device including it

Info

Publication number: CN216884180U
Application number: CN202220443886.7U
Authority: CN
Inventors: 刘志忠
Original assignee: Hanchuan Jiean Plastic Technology Co ltd
Current assignee: Hanchuan Jiean Plastic Technology Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-05
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a rotary cutter and a packaging straw belt cutting device comprising the same, belonging to the field of straw production equipment, the rotary cutter comprises a roller, a central shaft and a plurality of cutter components, the roller is hollow, a plurality of strip-shaped seams are uniformly arranged on the roller surface of the roller at intervals in the circumferential direction, the two ends of each strip-shaped seam are close to the two ends of the roller, the plurality of cutter components are in one-to-one correspondence with the strip-shaped seams, the plurality of cutter components are circumferentially and uniformly arranged in the roller at intervals, the two ends of each cutter component are in sliding connection with the inner side walls of the two ends of the roller along the radial direction of the corresponding strip-shaped seam, each cutter component is provided with strip-shaped blades, the blade side of each blade extends into the corresponding strip-shaped seam, an elastic piece is arranged between each cutter component and the inner wall of the roller, an extrusion plate is arranged on the upper projection of the central shaft, the roller rotates relative to the central shaft until the plurality of cutter components move in sequence and contact with the extrusion plate, so as to extrude the corresponding blade out of the corresponding strip-shaped seam, and the cutting efficiency is high.

Description

Rotary cutter reaches package straw area cutting device including it

Technical Field

The utility model belongs to the field of straw production equipment, and particularly relates to a rotary cutter and a packaging straw belt cutting device comprising the same.

Background

At present, the suction pipe is usually produced in a mode of packaging a suction pipe belt, so that a plurality of compartments provided with the suction pipe are connected into a belt shape (with easy-to-tear lines between two adjacent compartments), when the suction pipe leaves a factory, each compartment needs to be cut off sometimes, but at present, the cutting is mainly carried out manually, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving the above technical problems and to providing a periodic rotary cutter.

The technical scheme of the utility model is as follows: a rotary cutter comprises a roller, a central shaft and a plurality of cutter assemblies, wherein the roller is hollow, a plurality of strip-shaped seams penetrating through the roller are uniformly arranged on the roller surface of the roller at intervals in the circumferential direction, the two ends of each strip-shaped seam are close to the two ends of the roller, the cutter assemblies are in one-to-one correspondence with the strip-shaped seams, the cutter assemblies are uniformly arranged in the roller at intervals in the circumferential direction, the two ends of each cutter assembly are in sliding connection with the inner side walls at the two ends of the roller in the radial direction corresponding to the strip-shaped seams, each cutter assembly is provided with a strip-shaped blade, the blade side of each blade extends into the corresponding strip-shaped seam, an elastic piece is arranged between each cutter assembly and the inner wall of the roller and used for driving the corresponding cutter assembly to slide towards the axis of the roller, the cutting edges of the cutters extend into the corresponding strip-shaped seams, the central shaft is convexly provided with a squeezing plate, the roller rotates relative to the central shaft, the cutter assemblies move in sequence to be in contact with the squeezing plate, and the cutting edges of the corresponding blades are squeezed out of the corresponding strip-shaped seams.

Preferably, the cutter assembly further comprises a slide bar, the slide bar is located in the roller, two ends of the slide bar are connected with inner side walls at two ends of the roller in a sliding mode, one elastic piece is installed at each of two ends of each slide bar, and the blade is installed on the slide bar and located between the two elastic pieces.

Preferably, the elastic member is a spring.

Another object of the present invention is to provide a cutting device for a packaging straw band, which can cut the packaging straw band into adjacent compartments, and the technical scheme is as follows: the utility model provides a package straw area cutting device including rotary cutter, it is used for receiving the compartment that has the straw to two adjacent dress in the package straw area and cuts off, still includes conduction band roller and driving piece, conduction band roller and the equal level setting of cylinder, and the two roll surface laminating each other, the even concave recess that runs through of circumference interval is equipped with a plurality ofly on the roll surface of conduction band roller, and the middle part that lies in arbitrary adjacent two on the roll surface of conduction band roller between the recess is concave to be equipped with one and runs through the embedding seam at conduction band roller both ends, a plurality of embedding seam and a plurality of bar seam one-to-one, the protruding end of stripper orientation conduction band roller, package straw area walk around the top of conduction band roller, and pass through between conduction band roller and the cylinder, and every that the conduction band roller is located the top has a compartment in the recess, conduction band roller and cylinder all with driving piece transmission is connected, the transmission part drives the belt guide roller and the roller to synchronously and reversely rotate, and each cutter assembly rotates until the corresponding strip-shaped seam aligns with the corresponding embedding seam, so that the blade of the cutter assembly is extruded by the extrusion plate and extends into the corresponding embedding seam, and two adjacent compartments at two sides of the embedding seam are cut off.

In the technical scheme, the driving part is a speed reducing motor.

The utility model has the advantages that the central shaft of the rotary cutter is fixed, the roller rotates around the central shaft, when the roller rotates, the corresponding slide bar of each cutter component can be extruded to move away from the axis of the roller when rotating to contact the extrusion plate, namely, the corresponding blade moves to extend out of the corresponding strip-shaped slot, the roller continues to rotate, the slide rod rotates when the extrusion plates are separated, at the moment, the corresponding cutter component moves under the action of the corresponding elastic piece until the blade retracts into the strip-shaped seam, and when the blade extends out of the corresponding strip-shaped seam, one-time cutting can be finished, the positions of the plurality of cutter components extending out to the corresponding strip-shaped seams are consistent all the time, so that the periodical cutting can be realized, in addition, the guide roller pulls the packaging habit belt to move, and the cutter assembly can stretch into the embedding seam and cut off the compartment when stretching out, so that the cutting efficiency is high.

Drawings

FIG. 1 is a schematic view of a rotary cutter according to the present invention;

FIG. 2 is a cross-sectional view of a rotary cutter according to the present invention;

FIG. 3 is a schematic view of the cutting device for the packaging straw band according to the present invention;

FIG. 4 is a schematic view of the driving connection between the driving member and the guide roller and the drum according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.

Referring to fig. 1, the present invention provides a rotary cutter, which comprises a drum 1, a central shaft 102 and a plurality of cutter assemblies 103, wherein the drum 1 is hollow, a plurality of strip-shaped slits 101 penetrating through the drum 1 are uniformly arranged on a roll surface of the drum 1 at intervals in a circumferential direction, two ends of each strip-shaped slit 101 are close to two ends of the drum 1, the plurality of cutter assemblies 103 are in one-to-one correspondence with the plurality of strip-shaped slits 101, the plurality of cutter assemblies 103 are circumferentially and uniformly arranged in the drum 1 at intervals, two ends of each cutter assembly 103 are in sliding connection with inner side walls of two ends of the drum 1 along a radial direction corresponding to the strip-shaped slits 101, each cutter assembly 103 is provided with a strip-shaped blade 1031, a blade side of each blade 1031 extends into the corresponding strip-shaped slit 101, an elastic member 1032 is arranged between each cutter assembly 103 and the inner wall of the drum 1, the elastic member 1032 is configured to drive the corresponding cutter assembly 103 to slide toward the axis of the drum 1, so that the cutting edge of the cutter extends into the corresponding strip-shaped slot 101, a pressing plate 1021 is protruded from the central shaft 102, and the drum 1 rotates relative to the central shaft 102 until the plurality of cutter assemblies 103 move in sequence to make contact with the pressing plate 1021, so as to extrude the cutting edge side of the corresponding blade 1031 out of the corresponding strip-shaped slot 101. The length direction of the blade is consistent with that of the central shaft, and the blade is arranged in the roller along the radial direction.

Referring to fig. 2, preferably, the cutter assembly 103 further includes a slide bar 1033, the slide bar 1033 is located inside the drum 1, two ends of the slide bar 1033 are slidably connected to inner sidewalls of two ends of the drum 1, two ends of each slide bar 1033 are respectively provided with one elastic member 1032, and the blade 1031 is mounted on the slide bar 1033 and located between the two elastic members 1032.

Preferably, the pressing plate 1021 is arranged along the length direction of the central shaft, and one side of the pressing plate, which is far away from the central shaft, is rounded.

Preferably, the elastic member 1032 is a spring.

Referring to fig. 3 and 4, the present invention further provides a packaging straw band cutting apparatus including the rotary cutter, which is configured to cut two adjacent compartments 301 containing straws in a packaging straw band 3, and further includes a tape guide roller 2 and a driving member 4, wherein the tape guide roller 2 and the roller 1 are horizontally disposed, and the roller surfaces of the two are attached to each other, a plurality of grooves 201 penetrating both ends of the tape guide roller 2 are uniformly and circumferentially spaced on the roller surface of the tape guide roller 2, and an insertion slit 202 penetrating both ends of the tape guide roller 2 is concavely disposed in the middle between any two adjacent grooves 201 on the roller surface of the tape guide roller 2, the plurality of insertion slits 202 correspond to the plurality of strip slits 101 one by one, the protruding end of the pressing plate 1021 faces the tape guide roller 2, the packaging straw band 3 passes over the tape guide roller 2 and passes between the tape guide roller 2 and the roller 1, each groove 201 above the tape guide roller 2 is provided with a compartment 301, the tape guide roller 2 and the roller 1 are in transmission connection with the driving part 4, the driving part drives the tape guide roller 2 and the roller 1 to synchronously and reversely rotate, each cutter assembly 103 rotates until the corresponding strip-shaped slit 101 is aligned with the corresponding embedded slit 202, so that the pressing plate 1021 extrudes the blade 1031 of the cutter assembly and extends into the corresponding embedded slit 202, and two adjacent compartments 301 at two sides of the embedded slit 202 are cut off.

In the above technical scheme the driving part 4 is a speed reducing motor, wherein, the diameters of the roller and the guide roller are consistent, the same ends of the roller and the guide roller are coaxially and fixedly provided with gears which are consistent in diameter and meshed with each other, the other end of the guide roller is in transmission connection with the driving part, and the driving part drives the roller and the guide roller to synchronously rotate reversely.

While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the utility model may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the utility model is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.

Claims

1. A rotary cutter is characterized by comprising a roller, a central shaft and a plurality of cutter assemblies, wherein the roller is hollow, a plurality of strip-shaped seams penetrating through the roller are uniformly arranged on the roller surface of the roller at intervals in the circumferential direction, two ends of each strip-shaped seam are close to two ends of the roller, the cutter assemblies are in one-to-one correspondence with the strip-shaped seams, the cutter assemblies are uniformly arranged in the roller at intervals in the circumferential direction, two ends of each cutter assembly are connected with the inner side walls at two ends of the roller in a sliding manner along the radial direction corresponding to the strip-shaped seams, each cutter assembly is provided with a strip-shaped blade, the blade edge side of each blade extends into the corresponding strip-shaped seam, an elastic piece is arranged between each cutter assembly and the inner wall of the roller and used for driving the corresponding cutter assembly to slide towards the axis of the roller, the cutting edges of the cutters extend into the corresponding strip-shaped seams, the central shaft is convexly provided with a squeezing plate, the roller rotates relative to the central shaft, the cutter assemblies move in sequence to be in contact with the squeezing plate, and the cutting edges of the corresponding blades are squeezed out of the corresponding strip-shaped seams.

2. The rotary cutter according to claim 1 wherein said cutter assembly further comprises a slide bar, said slide bar being positioned within said drum and having opposite ends slidably connected to inner sidewalls of opposite ends of said drum, each of said opposite ends of said slide bar having a respective one of said resilient members mounted thereon, said blade being mounted on said slide bar and between said resilient members.

3. The rotary cutter according to claim 2 wherein said resilient member is a spring.

4. A packaging straw band cutting device comprising a rotary cutter according to any one of claims 1 to 3, for cutting two adjacent compartments containing straws in a packaging straw band, wherein a tape guide roller and a driving member are horizontally arranged, the roller surfaces of the tape guide roller and the roller are mutually attached, a plurality of grooves penetrating through both ends of the tape guide roller are uniformly and circumferentially spaced on the roller surface of the tape guide roller, an embedding slit penetrating through both ends of the tape guide roller is concavely arranged in the middle between any two adjacent grooves on the roller surface of the tape guide roller, a plurality of the embedding slits correspond to a plurality of the strip-shaped slits one by one, the protruding end of the pressing plate faces the tape guide roller, the packaging straw band passes over the tape guide roller and between the tape guide roller and the roller, and each of the grooves above the tape guide roller has a compartment, the strip guide roller and the roller are in transmission connection with the driving piece, the driving piece drives the strip guide roller and the roller to synchronously and reversely rotate, each cutter assembly rotates to enable the corresponding strip-shaped seam to be aligned with the corresponding embedding seam, so that the blade of the extrusion plate is extruded out by the extrusion plate and extends into the corresponding embedding seam, and two adjacent compartments on two sides of the embedding seam are cut off.

5. The package pipette tape severing device of claim 4 wherein said drive member is a gear motor.