Paperboard cutting device

Abstract

The utility model relates to a paperboard cutting device which comprises an installation frame arranged at one end of a conveying frame, a rotating shaft is arranged on the installation frame, a slitting assembly is arranged on the rotating shaft, a protrusion is arranged on the outer edge of the rotating shaft in the axial direction of the rotating shaft, and a plurality of connecting holes are evenly formed in the protrusion at intervals in the length direction of the protrusion. The slitting assembly comprises a plurality of mounting sleeves arranged at intervals and slitting knives arranged on the mounting sleeves, grooves used for being in sliding fit with the protrusions are formed in the inner circle faces of the mounting sleeves in the axial direction of the mounting sleeves, and through holes are formed in the top walls of the grooves in the radial direction of the mounting sleeves. And a locking piece penetrates through the connecting hole and the through hole to fix the mounting sleeve on the rotating shaft. According to the paperboard cutting device, the position of the slitting knife can be adjusted, so that paperboards with different machining requirements are cut, and the adaptability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard processing, in particular to a cardboard cutting device. Background Art

[0002] With the development of modern manufacturing, cardboard, as an important packaging material, is increasingly used in various industries. Cardboard cutting is one of the key steps in the cardboard production process. In the early days of the cardboard industry, cutting work mainly relied on manual operation. Workers used manual paper cutters to cut, which was not only labor-intensive but also prone to errors. The quality of the cardboard was difficult to ensure. To solve the above problems, a mechanized cutting device has appeared on the market, including a rotating shaft arranged on a frame and a plurality of disc-shaped slitting knives fixedly arranged on the rotating shaft. The slitting knives are located above the conveyor belt. The rotating shaft and the slitting knives are driven to rotate by a drive structure. The slitting knives cut the conveyed cardboard to meet the processing requirements of the cardboard. However, the existing cutting device still has some shortcomings: the multiple slitting knives are fixed on the rotating shaft, and the position of the slitting knives cannot be adjusted according to the specific processing requirements of different cardboards. When cutting cardboards with different processing requirements, the rotating shaft and the slitting knives need to be replaced, which is cumbersome to operate and has poor adaptability. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a cardboard cutting device for the above-mentioned defects, which can adjust the position of the slitting knife, thereby cutting cardboards with different processing requirements and has good adaptability.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a cardboard cutting device, including a mounting frame arranged at one end of a conveying frame, a rotating shaft provided on the mounting frame, a slitting assembly provided on the rotating shaft, a protrusion provided on the outer edge of the rotating shaft along its axial direction, a plurality of connecting holes evenly spaced along its length direction on the protrusion, the slitting assembly including a plurality of mounting sleeves arranged at intervals and a slitting knife provided on the mounting sleeve, a groove for slidingly cooperating with the protrusion is opened on the inner circumferential surface of the mounting sleeve along its axial direction, a through hole is provided on the top wall of the groove along the radial direction of the mounting sleeve, and the mounting sleeve is fixed to the rotating shaft by a locking member passing through the connecting hole and the through hole.

[0005] The working principle of this solution is as follows: the cardboard is transported by the conveyor belt on the conveyor frame. When the cardboard is transported to the bottom of the rotating shaft, the cardboard is rotated and cut at different positions by multiple slitting knives arranged on the rotating shaft. When the cutting position needs to be adjusted according to the specific processing requirements of the cardboard, the mounting sleeve is moved along the axial direction of the rotating shaft to adjust the position of the slitting knife. After adjustment, the mounting sleeve can be fixed to the rotating shaft by a locking member.

[0006] Compared with the prior art, the beneficial effect of this solution is that the mounting sleeve can be moved along the axial direction of the rotating shaft by cooperating with the groove on the mounting sleeve and the protrusion on the rotating shaft, and the slitting knife is arranged on the mounting sleeve, so the position of the slitting knife can be adjusted by moving the mounting sleeve, thereby being able to cut cardboards with different processing requirements, and having better adaptability.

[0007] As a preferred embodiment of the present invention, a limiting assembly is further provided on the mounting frame, and the limiting assembly includes a connecting sleeve arranged on the mounting frame and a connecting portion located on one side of the connecting sleeve, and a limiting block is provided on the lower side of the connecting portion for contacting the upper surface of the cardboard.

[0008] The beneficial effect of this solution is that when the cardboard is cut by the slitting knife, the cardboard is limited in the vertical direction by the limiting block in the limiting assembly, so as to avoid the position of the cardboard being offset during the cutting process, thereby affecting the cutting effect.

[0009] As a preferred embodiment of the present invention, a mounting post is provided on the mounting frame, the mounting post is located above the rotating shaft, and the connecting sleeve is sleeved on the mounting post.

[0010] The beneficial effects of this solution are as follows: the connecting sleeve in the limiting assembly is arranged on the mounting column. After adjusting the position of the mounting sleeve and the slitting knife, the position of the limiting block is adjusted by adjusting the connecting sleeve, so that the limiting block is set close to one side of the slitting knife, and the cutting area on the cardboard is limited, thereby achieving a better limiting effect.

[0011] As a preferred embodiment of the present invention, the connecting portion includes two upper and lower connecting rods and an arcuate rod arranged between the two connecting rods, the arcuate rod matches the mounting sleeve, and the limit block is arranged on the lower connecting rod.

[0012] The beneficial effects of this solution are as follows: the two connecting rods are connected by an arc rod and the arc rod matches the mounting sleeve. The arc rod plays a avoiding role for the mounting sleeve, preventing the mounting sleeve from colliding with the connecting part when rotating, thereby causing the connecting part to rotate around the mounting column, so that the limit block no longer contacts the upper surface of the cardboard, affecting the limiting effect. Moreover, the connecting part is set as two vertical connecting rods and the arc rod, and the structure is reasonable and compact.

[0013] As a preferred embodiment of the present invention, along the axial direction of the mounting sleeve, both sides of the mounting sleeve extend beyond the two sides of the slitting knife respectively, the connecting hole is located on the outer edge of one side of the mounting sleeve, and the outer edge of the other side of the mounting sleeve is provided with an annular groove for connecting with the connecting part, and the arc rod is located in the annular groove.

[0014] The beneficial effects of this solution are: the arc rod is located in the annular groove on the mounting sleeve, which can synchronously adjust the slitting assembly and the limiting assembly with high efficiency, and can avoid the connection part from moving along the axial direction of the rotating shaft during operation, affecting the limiting effect.

[0015] As a preferred embodiment of the present invention, the conveying frame is provided with a collection box for collecting waste paper strips below one end of the mounting frame.

[0016] The beneficial effects of this solution are as follows: the waste paper strips generated during the cutting process are collected by the collection box and recycled, and the waste paper strips can be prevented from falling to the ground and requiring manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an embodiment of the cardboard cutting device of the present invention.

[0018] Figure 2 It is a structural diagram of the cardboard moving to the next conveyor rack.

[0019] Figure 3 This is a schematic diagram of the structure when no cardboard is placed on the conveyor rack.

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the middle connection part.

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the middle mounting sleeve and slitting knife side.

[0022] Figure 6 for Figure 1 Schematic diagram of the structure of the middle mounting sleeve and the other side of the slitting knife. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0024] The terms "first", "second" and the like in the specification, claims and embodiments of this application are used to distinguish similar objects rather than to describe a specific order or sequential sequence.

[0025] The present invention is further described in detail below through preferred specific embodiments:

[0026] The figure marks in the drawings of the specification include: conveying frame 1, mounting frame 2, rotating shaft 3, protrusion 301, connecting hole 302, mounting sleeve 4, groove 401, through hole 402, annular groove 403, slitting knife 5, mounting column 6, connecting sleeve 7, connecting part 8, connecting rod 801, arc rod 802, limit block 9, collection box 10, cardboard 11.

[0027] As attached Figures 1 to 3 As shown: The cardboard cutting device of this embodiment includes a mounting frame 2 arranged at one end of a conveying frame 1. The conveying frame 1 is provided with a collection box 10 for collecting waste paper strips provided below one end of the mounting frame 2. The mounting frame 2 is provided with a rotating shaft 3 and a mounting column 6. The mounting column 6 is located above the rotating shaft 3. A protrusion 301 is provided on the outer edge of the rotating shaft 3 along its axial direction. A plurality of connecting holes 302 are evenly spaced along its length on the protrusion 301.

[0028] As attached Figure 5 and attached Figure 6 As shown: a slitting assembly is provided on the rotating shaft 3, and the slitting assembly includes a plurality of mounting sleeves 4 arranged at intervals and a slitting knife 5 arranged on the mounting sleeve 4. In this embodiment, four are preferably provided. The slitting knife 5 in this embodiment is disc-shaped, which is the prior art and will not be described in detail. A groove 401 for slidingly cooperating with the protrusion 301 is provided on the inner circular surface of the mounting sleeve 4 along its axial direction. Along the radial direction of the mounting sleeve 4, a through hole 402 is provided on the top wall of the groove 401. The mounting sleeve 4 is fixed to the rotating shaft 3 by a locking member passing through the connecting hole 302 and the through hole 402. The locking member in this embodiment is preferably a bolt, not shown in the figure. Along the axial direction of the mounting sleeve 4, both sides of the mounting sleeve 4 extend beyond the two sides of the slitting knife 5 respectively. The connecting hole 302 is located on the outer edge of one side of the mounting sleeve 4, and an annular groove 403 is provided on the outer edge of the other side of the mounting sleeve 4.

[0029] As attached Figures 4-6 As shown: the mounting frame 2 is also provided with a limit assembly, which includes a connecting sleeve 7 arranged on the mounting frame 2 and a connecting portion 8 located on one side of the connecting sleeve 7. The lower side of the connecting portion 8 is provided with a limit block 9 for contacting the upper surface of the cardboard 11. Furthermore, the connecting sleeve 7 is sleeved on the mounting column 6, and the connecting portion 8 includes two upper and lower connecting rods 801 and an arc rod 802 arranged between the two connecting rods 801. The arc rod 802 matches the mounting sleeve 4, and the limit block 9 is arranged on the lower connecting rod 801. The arc rod 802 is located in the annular groove 403 but does not contact the annular groove 403.

[0030] Specific cutting process:

[0031] The cardboard 11 is transported by the conveyor belt on the conveyor frame 1. When the cardboard 11 is transported to the bottom of the rotating shaft 3, the cardboard 11 is rotated and cut at different positions by multiple slitting knives 5 arranged on the rotating shaft 3. During the cutting process, the cardboard 11 is limited in the vertical direction by the limit block 9. When it is necessary to adjust the cutting position according to the size processing requirements of the cardboard 11, first loosen the bolt until it is withdrawn from the connecting hole 302, and then move the mounting sleeve 4 and the slitting knife 5 along the axial direction of the rotating shaft 3. Since the arc rod 802 in the limiting assembly is located in the annular groove 403 on the mounting sleeve 4, the positions of the slitting assembly and the limiting assembly can be adjusted synchronously. After adjustment, the mounting sleeve 4 can be fixed to the rotating shaft 3 by passing the bolt through the connecting hole 302 and the through hole 402.

[0032] The preferred embodiment of the present application is described in detail above in conjunction with the accompanying drawings. The typical well-known structures and common knowledge technologies in the preferred embodiment are not described in detail here. Ordinary technicians in the relevant field can, under the inspiration given by this embodiment, improve and implement the technical solution of the present utility model in combination with their own abilities. Some typical well-known structures, well-known methods or common knowledge technologies should not become obstacles for ordinary technicians in the relevant field to implement this application.

[0033] The scope of protection required by this application shall be based on the contents of its claims, and the contents of the utility model, specific implementation methods and the contents recorded in the drawings of the specification shall be used to interpret the claims.

[0034] Within the technical concept of this application, several modifications may be made to the specific implementation methods of this application, and these modified implementation methods should also be considered to be within the scope of protection of this application.

Claims

1. A cardboard cutting device, comprising a mounting frame disposed at one end of a conveyor frame, the mounting frame being provided with a rotating shaft, the rotating shaft being provided with a cutting assembly, characterized in that: A protrusion is provided on the outer edge of the rotating shaft along its axial direction, and a plurality of connecting holes are evenly spaced on the protrusion along its length direction. The slitting assembly includes a plurality of mounting sleeves arranged at intervals and a slitting knife arranged on the mounting sleeve. A groove for slidingly fitting with the protrusion is opened on the inner circular surface of the mounting sleeve along its axial direction, and a through hole is provided on the top wall of the groove along the radial direction of the mounting sleeve. The mounting sleeve is fixed to the rotating shaft by a locking piece passing through the connecting hole and the through hole.

2. The cardboard cutting device according to claim 1, characterized in that: The mounting frame is also provided with a limiting assembly, which includes a connecting sleeve arranged on the mounting frame and a connecting part located on one side of the connecting sleeve, and a limiting block for contacting the upper surface of the cardboard is provided on the lower side of the connecting part.

3. The cardboard cutting device according to claim 2, characterized in that: The mounting frame is provided with a mounting column, the mounting column is located above the rotating shaft, and the connecting sleeve is sleeved on the mounting column.

4. The cardboard cutting device according to claim 2, characterized in that: The connecting portion includes two upper and lower connecting rods and an arc rod arranged between the two connecting rods. The arc rod matches the mounting sleeve, and the limit block is arranged on the lower connecting rod.

5. The cardboard cutting device according to claim 4, characterized in that: Along the axial direction of the mounting sleeve, both sides of the mounting sleeve extend beyond the two sides of the slitting knife respectively. The connecting hole is located on the outer edge of one side of the mounting sleeve. An annular groove for connecting with the connecting part is provided on the outer edge of the other side of the mounting sleeve. The arc rod is located in the annular groove.

6. The cardboard cutting device according to claim 1, characterized in that: The conveying frame is provided with a collection box for collecting waste paper strips below one end of the mounting frame.

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