Window cutting knife roll

Abstract

The utility model discloses a window cutting knife roll, and relates to the technical field of cigarette mechanical equipment. The knife roll comprises a roll body and a knife die, the roll body is provided with a mounting groove used for mounting the knife die, the roll body is hollow, a first air hole communicated to a hollow area in the roll body is formed in the mounting groove, a second air hole is formed in the knife die in a penetrating mode, and when the knife die is mounted in the mounting groove, the first air hole is communicated with the second air hole. And the first air hole and the second air hole are communicated with each other, so that air can flow to the cutting die from the roller body along the first air hole and the second air hole to clean and blow the cutting die. According to the window cutting knife roller, the knife mold and the roller body are designed in a split mode, the knife mold is convenient to disassemble and replace, the air outlet channel from inside to outside is arranged on the knife roller and used for efficiently cleaning and blowing cigarette paper sheets on the knife mold, and it is guaranteed that the knife mold can stably cut and machine cigarette paper to form a window.

Description

TECHNICAL FIELD

[0001] The utility model relates to cigarette mechanical equipment technical field especially relates to a window cutting knife roll. BACKGROUND

[0002] The prior art discloses a cigarette box window cutting device, which comprises a rotating part, a supporting part, a collecting part and a cutting part. In the utility model, the cutting part is arranged on the outer periphery of the driving roller and is connected by a plurality of cutting knives. Under the joint action of the driving roller and the driven roller, the cigarette paper is inserted into the abutting position of the driving roller and the driven roller and slides out from the side of the driving roller. Meanwhile, the cutting part can cut the preset position on the cigarette paper and form a preset window on the cigarette paper. The collecting part collects the paper scraps falling from the cutting part, thereby realizing automatic continuous operation and improving production efficiency.

[0003] However, the cigarette box window cutting device still has the following defects:

[0004] 1. The cutting part is a consumable part and needs to be replaced regularly. For the above cutting device, the maintenance personnel need to disassemble the entire driving roller for replacement. Moreover, the maintenance personnel need to carefully adjust the position of the cutting part on the driving roller to the set position every time they replace the driving roller, which is troublesome and time-consuming.

[0005] 2. The cutting part protrudes from the surface of the roller body by only a few millimeters. When the cutting part cuts the cigarette paper, the cut cigarette paper scraps will accumulate in the inner recessed area of the cutting part. The conventional transverse blowing method from the outer surface of the roller body will be blocked by the cutting part, causing the cigarette paper to accumulate in the inner recessed area of the cutting part. When the accumulation reaches a certain amount, it will protrude above the cutting part, causing the cutting part to fail to cut the cigarette paper and seriously affecting the production quality. SUMMARY

[0006] The utility model provides a kind of window cutting knife roll, and knife mould and roller body are designed in split type, and knife mould is easy to disassemble and replace, and the air outlet passage from inside to outside is provided on knife roll, to efficiently clean and blow cigarette paper piece on knife mould, ensure that knife mould can stably cut cigarette paper to form window to solve the above technical problems.

[0007] The technical scheme for solving the above problems is to provide a kind of window cutting knife roll, the knife roll includes roller body and knife mould, the installation groove for installing the knife mould is provided on the roller body, the roller body is hollowly arranged, the first air hole that is connected to the hollow area inside the roller body is provided in the installation groove, the second air hole is provided through the knife mould, when the knife mould is installed in the installation groove, the first air hole and the second air hole are interconnected, so that gas can flow from the roller body to the knife mould along the first air hole and the second air hole, to clean and blow the knife mould.

[0008] Further, the cutter die comprises a die cutting base and a cutting blade, the cutting blade is a closed ring-shaped blade, and the cutting blade is protrusively arranged on the die cutting base.

[0009] Further, an inner recessed area is arranged inside the closed ring-shaped area of the cutting blade, the second air hole is arranged on the die cutting base, and the hole opening of the second air hole is arranged in the inner recessed area.

[0010] Further, a mounting positioning structure is arranged between the die cutting base and the mounting groove, the mounting positioning structure comprises a positioning recess arranged on the bottom of the die cutting base and a positioning protrusion arranged in the mounting groove, and the positioning protrusion is inserted into the positioning recess to position the mounting position of the cutter die.

[0011] Further, the positioning protrusion is a cross-shaped protrusion, and the positioning recess is a cross-shaped recess matched with the positioning protrusion.

[0012] Further, a guide plate capable of guiding the air flow of the first air hole is arranged in the inner hollow area of the roller body.

[0013] Further, the guide plate is arranged to be inclined towards the first air hole.

[0014] Further, one end of the roller body is axially provided with a clamping groove, a first threaded structure is arranged on the roller body and connected to the upper and lower sides of the clamping groove in the radial direction, the driving shaft of the driving motor is inserted into the inner hollow area of the roller body and the clamping groove, and the driving shaft is clamped and limited by the first threaded structure to be fixedly connected with the cutter roller.

[0015] Further, the cutter die is fixed to the roller body through a second threaded structure, the second threaded structure comprises a first screw hole arranged on the roller body, a second screw hole arranged on the cutter die, and a bolt threadedly connected with the first screw hole and the second screw hole to fixedly connect the cutter die to the roller body.

[0016] Further, the second screw hole is a countersunk hole.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The technician can ventilate the inner hollow area of the roller body regularly, so that the flowing air flows out along the first air hole and the second air hole, and flows from the inside of the closed ring-shaped area of the cutting blade to the outside, so as to efficiently and regularly clean the cigarette paper accumulated at the cutting blade, and ensure that the cutter roller can stably cut the cigarette paper to manufacture the window.

[0019] 2. The cutter roller consists of two parts: the die and the roller body. When the die is worn out and needs to be replaced, the maintenance personnel only need to disassemble and replace the die, instead of disassembling and replacing the entire cutter roller, which greatly reduces the difficulty of maintenance.

[0020] 3. The die is installed and positioned accurately with the roller body through the installation positioning structure. Therefore, each time the maintenance technician replaces the die, he only needs to align the positioning groove of the die with the positioning protrusion to complete the die positioning and installation, instead of having to install and adjust it multiple times to make the die align with the specific position of the cigarette paper for cutting. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0022] Figure 1 This is an overall structural diagram of the window cutting roller in this embodiment;

[0023] Figure 2 This is a cross-sectional view of the window cutting roller in this embodiment;

[0024] Figure 3 This is one of the structural diagrams of the die-cutting mold in this embodiment;

[0025] Figure 4 This is the second structural diagram of the die-cutting mold in this embodiment;

[0026] Figure 5 This is a structural diagram of the cutter roller in this embodiment;

[0027] 1-Roller body, 11-Mounting groove, 12-First air hole, 13-Guide plate, 14-Clamping groove, 15-First threaded structure;

[0028] 2-Die die, 21-Second air hole, 22-Die-cutting base, 23-Cutting blade, 24-Positioning groove, 25-Positioning protrusion;

[0029] 31 - First screw hole, 32 - Second screw hole. Detailed Implementation

[0030] The orientation terms mentioned or possibly mentioned in the present specification, such as up, down, left, right, front, back, front side, back side, top, bottom, etc., are defined with respect to the structure shown in the drawings, and the words "inner" and "outer" refer to the direction towards or away from the geometric center of a particular component, which are relative concepts, so they can change accordingly according to different positions, different use states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0031] Please refer to Figure 1 To Figure 5 The utility model discloses a kind of window cutting knife rollers of specific embodiment, knife roller includes roller body 1 and cutter 2, roller body 1 is cylindrical, the inside of roller body 1 is hollow, and the inside hollow area of roller body 1 extends to the two ends of roller body 1 and is formed with opening, installation groove 11 is set on the outside of roller body 1, first air hole 12 that is also set on roller body 1 is communicated with the inside hollow area of installation groove 11, cutter 2 is fixed in installation groove 11, second air hole 21 is also set on cutter 2;And when cutter 2 is fixed into installation groove 11, first air hole 12 and second air hole 21 are mutually aligned and communicated, so that air can flow from the inside of roller body 1 to the surface of cutter 2 along first air hole 12, second air hole 21, to clear cutter 2, avoid that tobacco paper is accumulated on cutter 2.

[0032] In some embodiments, for the convenience of fixing cutter 2 into installation groove 11, cutter 2 includes die cutting base 22 and cutting blade 23, cutting blade 23 is "racetrack type" closed ring blade, cutting blade 23 is fixedly arranged on the arc outer surface of die cutting base 22 by welding, the shape and size of die cutting base 22 are equivalent to installation groove 11, and cutting blade 23 is fixedly installed on the outside of roller body 1 by die cutting base 22;When die cutting base 22 is fixed into installation groove 11, the arc outer surface of die cutting base 22 can be seamlessly connected with the circumferential surface of roller body 1, and cutting blade 23 can correspondingly protrude from the surface of roller body 1, so as to facilitate its cutting of tobacco paper.

[0033] In some embodiments, since cutting blade 23 is a closed ring blade, and cutting blade 23 is protrudingly arranged on die cutting base 22, the surface of die cutting base 22 in the closed ring area of cutting blade 23 will cooperate with cutting blade 23 to form a concave area, and when cutting blade 23 cuts tobacco paper, the cut tobacco pieces will accumulate in the concave area until the accumulated tobacco thickness is higher than the height of cutting blade 23, thereby causing cutting blade 23 to be unable to cut off the tobacco paper to form a window on the tobacco paper; In this regard, the outer end hole of second air hole 21 can be set in the concave area, so that air can be directly blown into the concave area, thereby efficiently blowing off the tobacco pieces accumulated in the concave area.

[0034] In some embodiments, in order to ensure that each window formed by the cutting roller can stably and completely reveal the contents of the cigarette box or the appearance of the flavor capsule inside the cigarette, the cutting blade 23 is required to be accurately positioned on the cutting roller each time it is replaced during the cigarette paper cutting process. In order to ensure that the cutting blade 23 is accurately positioned after each replacement of the die dies 2, an installation positioning structure is provided between the die-cutting base 22 and the mounting groove 11. The positioning installation structure consists of a positioning groove 24 formed at the bottom of the die-cutting base 22 and a positioning protrusion 25 provided in the mounting groove 11. The positioning protrusion 25 is also a cross-shaped protrusion protruding from the bottom wall of the mounting groove 11. The positioning groove 24 is a cross-shaped groove that is recessed upwards into the bottom of the die-cutting base 22. The two are adapted to each other to precisely limit the specific position of the die dies 2 in the mounting groove 11, so as to ensure that the cutting blade 23 can be accurately positioned.

[0035] In some embodiments, the positioning groove 24 may also be formed at the bottom of the mounting groove 11, and the positioning protrusion 25 is correspondingly set at the bottom of the die-cutting base 22; moreover, as long as the die-cutting base 22 can be accurately positioned in the four directions of front, back, left and right, the positioning groove 24 and the positioning protrusion 25 may also be other fitting shapes different from the cross shape, such as X shape, L shape, etc.

[0036] In some embodiments, the die 2 is fixed to the mounting groove 11 by a second threaded structure, and the die 2 is also accurately positioned with the mounting groove 11 by multiple sets of second threaded structures to ensure that the cutting blade 23 is accurately in the set position after each die 2 replacement. Specifically, the second threaded structure includes a first threaded hole 31 opened in the positioning protrusion 25 or positioning groove 24 in the mounting groove 11 of the roller body 1, a second threaded hole 32 opened on the die-cutting base 22, and a bolt. The first threaded hole 31, the second threaded hole 32, and the bolt are provided in two or more sets. A bolt is threaded to a first threaded hole 31 and a second threaded hole 32 at the same time to fix the die 2 in the mounting groove 11. The cooperation of multiple sets of second threaded structures further accurately defines the specific position of the die 2 in the mounting groove 11.

[0037] Furthermore, in order to prevent the bolt from protruding from the arc-shaped outer surface of the die-cutting base 22 and affecting the cutting effect of the cutting blade 23, the second screw hole 32 is a countersunk hole, and the nut end of the bolt can be recessed into the second screw hole 32.

[0038] In some embodiments, to enhance the cleaning effect, Figure 2 Taking the orientation shown as an example, a guide plate 13 is also provided in the hollow area inside the roller body 1. The guide plate 13 is inclined, with the upper end of the guide plate 13 located to the left of the first air hole 12 and the lower end inclined to the right, so as to guide the air to flow into the first air hole 12, thereby enhancing the effect of gas blowing on the outside of the die 2.

[0039] In some embodiments, with Figure 1 Taking the orientation shown as an example, two clamping grooves 14 are opened opposite each other on the left end of the roller body 1. Both clamping grooves 14 are T-shaped. The drive shaft of the drive motor is provided with a limiting strip for extending into the bottom of the clamping groove 14. In addition, two sets of first threaded structures 15 are radially provided on the roller body 1, which are respectively connected to the upper and lower sides of each clamping groove 14. The first threaded structure 15 includes locking screw holes opened on the upper and lower sides of the clamping groove 14, and locking bolts that are threadedly connected to the upper and lower locking screw holes. Therefore, when the roller body 1 is fitted onto the drive shaft, in addition to the drive shaft being inserted into the hollow area inside the roller body 1, the limiting strip on the drive shaft will also extend axially into the bottom end of the clamping groove 14. The two locking bolts are also threadedly connected to each set of upper and lower locking screw holes, and the gap of the clamping groove 14 is reduced by tightening and rotating, thereby locking the limiting strip and fixing the cutter roller onto the drive shaft, so as to achieve the purpose of stably installing the cutter roller on the drive shaft.

[0040] Anything not mentioned above applies to existing technologies.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A windowing cutter roll characterized by, The cutter roll comprises a roll body (1) and a cutter die (2), the roll body (1) is provided with a mounting groove (11) for mounting the cutter die (2), the roll body (1) is hollow, the first air hole (12) is arranged in the mounting groove (11) and is communicated with the hollow area inside the roll body (1), the second air hole (21) is arranged through the cutter die (2), when the cutter die (2) is mounted into the mounting groove (11), the first air hole (12) and the second air hole (21) are communicated with each other, so that the gas can flow from the roll body (1) to the cutter die (2) along the first air hole (12) and the second air hole (21), and the cutter die (2) is cleaned and blown.

2. The window cutting knife roll of claim 1 wherein, The cutter die (2) comprises a die cutting base (22) and a cutting blade (23), the cutting blade (23) is a closed ring-shaped blade, and the cutting blade (23) is protrusively arranged on the die cutting base (22).

3. The window cutting knife roll of claim 2, wherein, The closed ring-shaped area inside the cutting blade (23) is an inner recessed area, the second air hole (21) is arranged on the die cutting base (22), and the hole opening of the second air hole (21) is arranged in the inner recessed area.

4. The window cutting knife roll of claim 2 wherein, The mounting and positioning structure is further arranged between the die cutting base (22) and the mounting groove (11), the mounting and positioning structure comprises a positioning recess (24) arranged on the bottom of the die cutting base (22) and a positioning protrusion (25) arranged in the mounting groove (11), the positioning protrusion (25) is inserted into the positioning recess (24) to position the mounting position of the cutter die (2).

5. The windowing cutter roll of claim 4, wherein, The positioning protrusion (25) is a cross-shaped protrusion, and the positioning recess (24) is a cross-shaped recess matched with the positioning protrusion (25).

6. The windowing cutter roll of claim 1 wherein, The inner hollow area of the roll body (1) is further provided with a flow guide plate (13) capable of guiding the air flow of the first air hole (12).

7. The windowing cutter roll of claim 6, wherein, The flow guide plate (13) is obliquely arranged towards the first air hole (12).

8. The windowing cutter roll of claim 1 wherein, One end of the roll body (1) is axially provided with a clamping groove (14), a first threaded structure (15) is radially arranged on the roll body (1) and connected to the upper and lower sides of the clamping groove (14), the driving shaft of the driving motor is inserted into the clamping groove (14) and the inner hollow area of the roll body (1), and is clamped and limited by the first threaded structure (15), so as to be fixedly connected with the cutter roll.

9. The windowing cutter roll of claim 2 wherein, The cutter die (2) is fixed to the roll body (1) through a second threaded structure, the second threaded structure comprises a first screw hole (31) arranged on the roll body (1), a second screw hole (32) arranged on the cutter die (2), and a bolt which is threadedly connected with the first screw hole (31) and the second screw hole (32) and thereby fixedly connects the cutter die (2) to the roll body (1).

10. The windowing cutter roll of claim 9, wherein, The second screw hole (32) is a countersunk hole.

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