Cutting device

Abstract

To provide a device capable of further reliably incising a bag wrapping a row of can lids.SOLUTION: An incision device 1 that incises a bag of a column-shaped object T wrapped in a bag T1, comprises a transfer section 2 for transferring the object in a longitudinal direction, a bag suction section 3 that is positioned on a transferring route through which the object is transferred to suck the bag of the object, and a blade section 5 which is positioned continuously behind the bag suction section to incise a sucked bag. The bag suction section has a suction surface facing the object, and a cross-section of the suction surface perpendicular to a transfer direction of the object is an arcuate cross section that is convex in the direction away from the object. The suction surface includes a plurality of suction holes for sucking the bag. The blade section is provided at a rear end of the suction surface and at a position corresponding to apex of an arcuate cross section of the suction surface.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a dissection device. [Background technology]

[0002] Background art in this technical field is found in Japanese Patent Publication No. 11-43122 (Patent Document 1), which describes "a can lid bag-opening machine that removes bags from a package in which stacked can lids are packed into a cylindrical bag." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Unexamined Patent Publication No. Hei 11-43122 Summary of the Invention [Problem to be solved by the invention]

[0004] There was a risk that the bag enclosing the row of can lids, each of which is substantially disk-shaped and parallel to one another and closely adheres to one another, extending in a cylindrical shape, could not be reliably cut open. [Means for solving the problem]

[0005] In order to solve the above problems, for example, the configurations described in the claims are adopted. The present application includes a plurality of means for solving the above problems, and examples thereof include: An incision device for incising a bag of a columnar object wrapped in the bag, a transfer unit that transfers the object along a longitudinal direction; a bag suction unit that is located on a transfer path along which the object is transferred and that sucks the bag of the object; and a blade section positioned consecutively to the rear of the bag suction section and configured to incise the suctioned bag.

[0006] the bag suction unit has a suction surface facing the object, a cross section of the suction surface in a direction perpendicular to the transfer direction of the object has an arc-shaped cross section that is convex in a direction away from the object, the suction surface includes a plurality of suction holes for sucking the bag; An incision device, wherein the blade portion is provided at a rear end of the suction surface and at a position corresponding to the apex of the arc-shaped cross section of the suction surface.

[0007] A cutting device, wherein among the plurality of suction holes, a blade-proximate suction hole that is provided at the vertex of the arc-shaped cross section of the suction surface and is closest to the blade has a larger opening area than the other suction holes.

[0008] the bag suction unit has a guide unit that introduces the object directly below the suction surface, The guide portion is Located on both sides of the suction surface, a pair of guide surfaces facing the object and positioned closer to the object than the suction surface; The guide surface is provided at a position where it can come into contact with the object.

[0009] An incision device, wherein the front end of the guide surface into which the object is introduced has a rounded chamfered shape.

[0010] The incision device further comprises a debris suction section positioned on the transfer path behind the blade section, which sucks up debris generated by incising the bag. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a device that can more reliably cut open bags that enclose rows of can lids. Problems, configurations, and effects other than those described above will become apparent from the following description of the embodiments. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 2 is a front view of the incision device, and is the first diagram for explaining the operation of the incision device. [Figure 2]FIG. 2 is a side view of the incision device, and is the first diagram for explaining the operation of the incision device. [Figure 3] FIG. 2 is a front view of the incision device, and is a second view illustrating the operation of the incision device. [Figure 4] FIG. 2 is a side view of the incision device, and is a second diagram illustrating the operation of the incision device. [Figure 5] FIG. 3 is a front view of the incision device, and is a third diagram illustrating the operation of the incision device. [Figure 6] FIG. 10 is a bottom view of the bag suction unit of the incision device. DETAILED DESCRIPTION OF THE INVENTION

[0013] An example (embodiment) of an incision device will be described with reference to FIGS. 1 to 6. FIG. 1, 3 and 5 are front views of the incision device. 2 and 4 are side views of the incision device.

[0014] The incision device 1 is a device that incises a bag T1 of a columnar object T wrapped in the bag T1. In this embodiment, the object T is a row of can lids (the dashed line shown inside the bag T1) in which approximately disk-shaped can lids are wrapped in a paper bag T1 and extend in a cylindrical shape (in the x-axis direction in Figures 1 to 6) in close contact with each other and parallel to each other. The incision device 1 includes a transport unit 2, a bag suction unit 3, a guide unit 4, a blade unit 5, and a debris suction unit 6.

[0015] The transfer unit 2 includes a transfer table 21 and a push-out member 22 . The transfer table 21 is a table for transferring the object T. The transfer table 21 is a member extending in the transfer direction of the object T (the x-axis direction in FIGS. 1 to 6). The pushing member 22 is a member that pushes the object T placed on the transfer table 21 along the longitudinal direction of the object T, thereby transferring the object T.

[0016] The bag suction unit 3 is located above a path along which the target object T is transferred (hereinafter, may be referred to as a transfer path), and serves to suck the bag T1 of the target object T. It should be noted that "upper" means upper in the y-axis direction in FIGS. 1 to 5, and "lower" means lower in the y-axis direction in FIGS.

[0017] The bag suction unit 3 has a suction surface 31 that faces the object T to be transferred (facing downward). The suction surface 31 includes a plurality of suction holes 31A which are openings. The suction surface 31 is a surface extending along the direction in which the target object T is transferred. The bag suction unit 3 is connected to a vacuum pump (not shown), and by operating the vacuum pump, a suction force is generated in the vicinity of the suction holes 31A of the suction surface 31.

[0018] The guide portion 4 is for introducing the target object T directly below the suction surface 31 of the bag suction portion 3. The guide portion 4 is located on both sides of the suction surface 31. In other words, the guide portion 4 has two members, and the bag suction portion 3 is located between the two members. The guide portion 4 has an elongated shape extending along the direction in which the object T is transported.

[0019] The blade portion 5 is used to cut open the bag T1 of the object T. The blade portion 5 is located contiguous to the rear of the bag suction portion 3. The blade portion 5 is fixed to the rear of the bag suction portion 3 so that the tip of the blade portion 5 is positioned to protrude downward from the suction surface 31 of the bag suction portion 3. Note that "rear" refers to the downstream side in the transport direction of the object T, and means the left side in the x-axis direction in Figures 1, 3, and 5, and "front" refers to the upstream side in the transport direction of the object T, and means the right side in the x-axis direction in Figures 1, 3, and 5.

[0020] The debris suction section 6 is located above the transport path behind the blade section 5, and serves to suck up debris generated when the bag T1 is cut open. The debris suction section 6 has a debris suction port 61 facing the object T to be transferred (facing downward). The debris suction unit 6 is connected to a vacuum pump (not shown), and by operating the vacuum pump, a suction force is generated in the vicinity of the debris suction port 61 .

[0021] Each component may be made of any material as long as it can produce the function of the incision device 1 described below, but in this embodiment, the transfer section 2, bag suction section 3, blade section 5 and debris suction section 6 are made of metal, particularly stainless steel, and the guide section 4 is made of synthetic resin.

[0022] The incision device 1 may have a bag removal unit (not shown) that removes the incised bag T1 in the object T. The bag removal unit is located behind the debris suction unit 6 in the transport path of the target object T, and removes the incised bag T1. The bag removal unit has a pair of peeling rollers that peel off the bag T1 from the object T. When the object T is placed on the pair of peeling rollers, the pair of peeling rollers are operated, and the incised bag T1 is peeled off and removed from the object T.

[0023] The incision device 1 has a control unit that controls the transport unit 2, the bag suction unit 3, the debris suction unit 6, and the bag removal unit.

[0024] The operation of the incision device 1 will be described with reference to FIGS. 1 and 2 are first diagrams illustrating the operation of the incision device 1. FIG. 1 and 2, the object T is placed on the transfer table 21 and then transferred by the push-out member 22, with a portion of the object T positioned directly below the guide unit 4. Note that the object T is not positioned directly below the suction surface 31 of the bag suction unit 3.

[0025] 3 and 4 are second views for explaining the operation of the incision device 1. FIG. The object T shown in FIGS. 3 and 4 has been transferred by the pushing member 22, and a part of the object T is positioned directly below the suction surface 31 of the bag suction unit 3. As shown in FIGS. 3 and 4, when the object T being transferred is located directly below the suction surface 31, the bag T1 of the object T is sucked into the suction holes 31A and adsorbed to the suction surface 31.

[0026] FIG. 5 is a third diagram illustrating the operation of the incision device 1. As shown in FIG. FIG. 5 shows the state of the object T after a part of it has passed through the blade portion 5. As shown in FIG. 5, when the object T being transferred reaches the blade portion 5, the bag T1 sucked by the bag suction portion 3 is cut open by the blade portion 5. When the object T being transferred is located directly below the debris suction unit 6, the debris generated when the bag T1 is cut open by the blade unit 5 is sucked by the debris suction unit 6.

[0027] According to the incision device 1 of this embodiment, the blade section 5 that incises the bag T1 sucked by the bag suction section 3 is located contiguous to the rear of the bag suction section 3, as described above.

[0028] According to the incision device 1 of this embodiment, as shown in Figures 2 and 4, the cross section of the suction surface 31 in a direction perpendicular to the transport direction of the object T (the z-axis direction in the figure) is an arc-shaped cross section that is convex in the direction away from the object T (upward). The blade portion 5 is provided at the rear end of the suction surface 31, at a position corresponding to the apex of the arc-shaped cross section of the suction surface 31.

[0029] FIG. 6 is a bottom view of the bag suction unit 3 in the incision device 1. As shown in FIG. According to the incision device 1 of this embodiment, as shown in FIG. 6, among the multiple suction holes 31A, the blade-adjacent suction hole 31AP, which is provided at the vertex of the arc-shaped cross section of the suction surface 31 and is closest to the blade 5, has a larger opening area than the other suction holes 31A.

[0030] With each of these configurations, the bag T1 of the object T can be more reliably sucked by the bag suction section 3 (the bag T1 is more reliably separated from the row of can lids, which is the contents of the object), and the bag T1 can be cut open by the blade section 5, so that the bag T1 wrapping the row of can lids can be more reliably cut open.

[0031] According to the incision device 1 of this embodiment, as shown in FIGS. 2 and 4, the guide part 4 includes a pair of guide surfaces 41 that are located on the object T side (belower) than the suction surface 31 and face the object T. The guide surface 41 is a surface extending along the direction in which the object T is transported. The guide surface 41 is provided at a position where it can come into contact with the object T. With this configuration, it is possible to improve the sliding property between the object T and the guide portion 4 while maintaining a predetermined distance between the row of can lids, which are the contents of the object T, and the bag suction portion 3. Furthermore, by abutting the object T with the guide surface 41, that is, by maintaining a predetermined distance between the row of can lids, which are the contents of the object T, and the bag suction section 3 and the blade section 5, damage to the row of can lids, which are the contents of the object T, by the blade section 5 can be prevented.

[0032] According to the incision device 1 of this embodiment, as shown in Figures 1, 3, and 5, the front end, which is the front end of the guide surface 41 into which the object T is introduced, has a rounded chamfered shape (R-chamfered portion 41R). In other words, the guide surface 41 is configured to gradually approach the object T (to move downward) from the front end toward the rear. With this configuration, the target object T can be introduced directly below the bag suction part 3 (suction surface 31) and the guide part 4 without any hindrance.

[0033] According to the incision device 1 of this embodiment, as shown in FIGS. 1, 3 and 5, the front end, which is the front end of the bag suction part 3, has a C-chamfered shape (C-chamfered part 3C). In other words, the bag suction unit 3 is configured to gradually approach the target object T (to move downward) from the front end toward the rear. The C-chamfered portion 3C does not have the suction hole 31A. With this configuration, the target object T can be introduced directly below the bag suction part 3 (suction surface 31) and the guide part 4 without any hindrance.

[0034] Although the present invention has been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and improvements are possible within the scope of the gist of the present invention. [Explanation of symbols]

[0035] 1 :Incision device 2: Transfer section 21: Transfer table 22: Extrusion member 3: Bag suction part 31: Suction surface 31A: Suction hole 31AP: Blade proximity suction hole 4: Guide section 41: Guide surface 41R :R chamfered part 5:Blade part 6: Debris suction section T: Object

Claims

1. An incision device for incising a bag of a columnar object wrapped in the bag, a transfer unit that transfers the object along a longitudinal direction; a bag suction unit that is located on a transfer path along which the object is transferred and that sucks the bag of the object; a blade portion positioned consecutively to the rear of the bag suction portion and configured to cut open the suctioned bag, the bag suction unit has a suction surface facing the object, a cross section of the suction surface in a direction perpendicular to the transfer direction of the object has an arc-shaped cross section that is convex in a direction away from the object, the suction surface includes a plurality of suction holes for sucking the bag; the blade portion is provided at a rear end of the suction surface and at a position corresponding to an apex of the arc-shaped cross section of the suction surface, Among the plurality of suction holes, a blade-proximate suction hole that is provided at a vertex of the arc-shaped cross section of the suction surface and that is closest to the blade has a larger opening area than the other suction holes. incision device.

2. the bag suction unit has a guide unit that introduces the object directly below the suction surface, The guide portion is Located on both sides of the suction surface, a pair of guide surfaces facing the object and positioned closer to the object than the suction surface; The guide surface is provided at a position where it can come into contact with the object. The lancing device of claim 1 .

3. The front end of the guide surface into which the object is introduced has an R-chamfered shape. The lancing device of claim 2 .

4. a scrap suction unit positioned on the transfer path behind the blade unit and configured to suck up scraps generated by cutting the bag; The incision device according to any one of claims 1 to 3.

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