Bale cutter with central arrow
By employing a combination structure of a support shell and a central arrow in the bag cutting machine, the central arrow is used for pre-cutting and to protect the cutting blade, thus solving the problem of easy damage to the cutting blade and achieving efficient and fast ton bag cutting.
Patent Information
- Application Number
- CN202520461655.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The cutting blades of existing bag-cutting machines are prone to damage when cutting the bottom of ton bags, resulting in low cutting efficiency and high maintenance costs.
The bag cutter housing structure consists of an even number of equally spaced support housings connected around the center. Combined with a central arrow and a cutting blade, the tip of the central arrow is used for pre-cutting, and the cutting blade is driven by a drive structure to slide along the cutting seam, protecting the cutting blade from the impact of the ton bag.
It improves the cutting efficiency of ton bags, reduces damage to cutting tools, lowers maintenance costs, and enables rapid automated cutting.
Smart Images

Figure CN223822236U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a bag cutting machine technology field, specifically relates to a bag cutting machine with central arrow. BACKGROUND
[0002] When granular material is loaded, generally, ton bag for packing granular material is first suspended above the cabin, then manually moved to the ton bag below along the bridge, and then the bottom of the ton bag is manually cut to make the material in the ton bag flow out and fall into the cabin. At present, some automatic bag cutting devices are used to replace manual bag cutting operation to realize automatic, intelligent and safe bag cutting operation.
[0003] At present, when the common bag cutting device cuts the bottom of the ton bag, in order to ensure the discharging efficiency of the ton bag, diagonal cutting is usually adopted to open a larger discharging port. However, the cutting tool of the diagonal cutting mode is concentrated in the center position in the initial state and directly receives the impact of the ton bag. Due to the weight of the ton bag and the sharpness requirement of the cutting tool, the cutting tool is easily damaged after receiving multiple impacts, thereby reducing the cutting efficiency and increasing the maintenance cost.
[0004] Therefore, there is an urgent need for a bag cutting machine with a central arrow to solve the problem of easy damage of the cutting tool of the common bag cutting machine. UTILITY MODEL CONTENTS
[0005] The utility model provides a bag cutting machine with central arrow to solve the problem of easy damage of the cutting tool of the common bag cutting machine in view of the deficiency in the prior art.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A bag cutting machine with a central arrow, characterized in that it comprises a bag cutting machine shell, a central arrow, a cutting tool and a driving structure, the bag cutting machine shell is composed of a plurality of equidistantly arranged support shells connected around a center, the upper end of each support shell is provided with a cutting slot extending from the center of the bag cutting machine shell to an end away from the center, a cutting tool is slidably arranged in each cutting slot, and the inside of the support shell is provided with a driving structure for driving the cutting tool to reciprocate along the cutting slot, the central arrow is installed at the center of the bag cutting machine shell, the upper end of the central arrow is a pointed end upward, and the side wall of the central arrow is provided with a tool receiving groove corresponding to the cutting slot, which can accommodate the cutting tool moving along the cutting slot.
[0008] To optimize the above technical scheme, the specific measures taken also include:
[0009] Further, the center arrow is composed of a plurality of branch arrows, each of which comprises a connecting seat and two support plates, one side of the two support plates being connected and perpendicularly arranged at the upper end of the connecting seat in a clamped angle, the upper end of the support plate being provided with an inner-high outer-low inclined blade surface, the side wall of the support plate being provided with the knife slot, each of the branch arrows being connected through the outer corner side of the two support plates at equal intervals, and each of the branch arrows being arranged between the two cutting slots.
[0010] Further, the angle between the two support plates on the same branch arrow is consistent with the angle between the two branch housings.
[0011] Further, the inclined blade surfaces at the upper end of the two support plates on the same branch arrow are inclined downward toward the inner corner side of the two support plates.
[0012] Further, the knife slot is arranged on the outer corner side of the two support plates on the same branch arrow, and the side of the knife slot close to the outer corner is open, the upper end of the knife slot extending to the inclined blade surface, and the outer side end of the inclined blade surface constituting a pre-cut sharp end.
[0013] Further, each of the branch arrows is arranged between the two cutting slots without repetition.
[0014] Further, between each of the two branch housings, a mounting seat is arranged close to the center of the cutting bag machine housing, and the mounting seat is used for connecting the connecting seat.
[0015] Further, the mounting seat and the connecting seat are detachably connected through bolts.
[0016] Further, the cutting bag machine housing is composed of four equidistantly arranged branch housings surrounding a center connection, forming a "cross" type cross structure.
[0017] Further, the cutting bag machine housing further comprises a detection sensor, the detection sensor being installed on the cutting bag machine housing and being electrically connected with the driving structure, and being used for sensing whether the ton bag falls or not and controlling the driving structure.
[0018] The utility model has the advantages of:
[0019] The utility model discloses a cutting bag machine shell structure is formed by the surrounding one center connection of double number of equidistance arrangement's support shell, cooperation cutting tool and drive structure can guarantee ton bag is cut to the maximum degree, and simultaneously, the interval of several support shell can efficiently supply material to fall, through the center arrow of installing at the center place of cutting bag machine shell, can use its upward tip to ton bag and carry out pre -cutting, can use the knife receiving groove of lateral wall to cutting tool in ton bag and press down stage and protect, cutting tool can slide out knife receiving groove and cut ton bag lower end after ton bag press down by drive structure, improve the cutting efficiency of ton bag, and solve the problem that the cutter is easy to damage.
[0020] The utility model discloses can use the oblique blade face of high inside low outside of upper end as upward tip to carry out ton bag's pre -cutting, wherein, the design of two support plates can use the space between support plate, increase the stress of support plate upper end oblique blade face, convenient for pre -cutting, can use cutting tip cooperation ton bag's dead weight, makes ton bag appear cut -out fast, thereby convenient cutting tool from knife receiving groove slide out, to ton bag high -efficient cutting.
[0021] The utility model discloses device occupies little space, and the structure is compact, and the middle arrow not only has the function of pre -cutting, but also can protect cutting tool, when using, cutting tool and centerline arrow form the mode of no -gap butt joint, can make ton bag crack along the set geometry trace, form complete cross -type route and cut, can cut ton bag fast and automatically and maximum degree, and the split type structure of cutting tool and centerline arrow is convenient for the dismounting, replacement and maintenance of spare part. ACCURACY OF DRAWINGS
[0022] Figure 1 It is the whole structure schematic diagram of a kind of cutting bag machine with center arrow proposed in the utility model;
[0023] Figure 2 It is the whole structure plan view of a kind of cutting bag machine with center arrow proposed in the utility model;
[0024] Figure 3 It is the protection schematic diagram of cutting tool of a kind of cutting bag machine with center arrow proposed in the utility model;
[0025] Figure 4 It is the installation schematic diagram of center arrow of a kind of cutting bag machine with center arrow proposed in the utility model;
[0026] Figure 5 It is the structure schematic diagram of center arrow of a kind of cutting bag machine with center arrow proposed in the utility model;
[0027] Figure 6This is a top view of the structure of the central arrow of a bag-cutting machine with a central arrow proposed in this utility model;
[0028] Figure 7 This is a schematic diagram of the support arrow of a bag cutter with a central arrowhead proposed in this utility model.
[0029] Reference numerals: 1. Bag cutter housing, 11. Mounting base, 12. Cutting slit, 2. Center arrow, 21. Connecting base, 22. Support plate, 23. Pre-cutting tip, 24. Beveled blade, 25. Cutting groove, 3. Cutting blade, 4. Detection sensor. Detailed Implementation
[0030] The present invention will now be described in detail with reference to the accompanying drawings.
[0031] As attached Figure 1 As shown, a bag-cutting machine with a central arrow according to an embodiment of the present invention includes a bag-cutting machine housing 1, a central arrow 2, a cutting blade 3, and a drive structure. The bag-cutting machine housing 1 is composed of an even number of equally spaced support housings connected around a center. Each support housing has a cutting slit 12 extending from the center of the bag-cutting machine housing 1 to a point away from the center at its upper end. A cutting blade 3 is slidably disposed in each cutting slit 12. The interior of each support housing is provided with a drive structure for driving the cutting blade 3 to reciprocate along the cutting slit 12. The central arrow 2 is installed at the center of the bag-cutting machine housing 1, with the upper end of the central arrow 2 being an upward-pointing tip. The side wall of the central arrow 2 has a blade-receiving groove 25 corresponding to the cutting slit 12, which allows the cutting blade 3 to move and retract along the cutting slit 12.
[0032] In this scheme, the drive structure can be an electric telescopic cylinder, which is used to connect and control the cutting tool 3 to reciprocate along the cutting seam 12.
[0033] This invention features a bag-cutting machine housing 1 constructed from a plurality of equally spaced support housings connected around a central point. Combined with the cutting blade 3 and a drive structure, this design ensures maximum cutting efficiency for the ton bag. Simultaneously, the intervals between the support housings allow for efficient material distribution. A central arrow 2, positioned at the center of the bag-cutting machine housing 1, allows for pre-cutting of the ton bag using its upward-pointing tip. Furthermore, the blade-holding groove 25 on the side wall protects the cutting blade 3 during the bag's downward pressure phase. After the ton bag is pressed down, the cutting blade 3 is driven by the drive structure to slide out of the blade-holding groove 25 and cut the lower end of the ton bag. This design improves the cutting efficiency of the ton bag and solves the problem of easy blade damage.
[0034] As attached Figure 3 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 7As shown, in another specific embodiment based on the above, the central arrow 2 is composed of a plurality of branch arrows, each of which includes a connecting seat 21 and two support plates 22 connected on one side and perpendicularly arranged at the upper end of the connecting seat 21 in an angle shape, and the upper end of each support plate 22 is provided with an inner-high outer-low inclined blade surface 24, and the side wall of the support plate 22 is provided with a blade receiving groove 25, and each branch arrow is connected to each other through the outer corner side of the two support plates 22 at equal intervals, and each branch arrow is arranged between two cutting slots 12.
[0035] In this scheme, the two support plates 22 on each branch arrow are a group, and the support plates 22 perpendicularly arranged in an angle shape are connected to each other, and the inner-high outer-low inclined blade surface 24 at the upper end can be used as an upward sharp end to perform pre-cutting on the ton bag; wherein the design of the two support plates 22 can utilize the space between the support plates 22 to increase the stress on the inclined blade surface 24 at the upper end of the support plate 22, facilitating pre-cutting.
[0036] Among them, in further embodiments based on the above, the angle between the two support plates 22 on the same branch arrow is consistent with the angle between the two shell bodies. In this way, it is convenient for positioning and installing and opening the blade receiving groove 25.
[0037] Among them, in further embodiments based on the above, the inclined blade surface 24 at the upper end of the two support plates 22 on the same branch arrow is inclined downward toward the inner corner side of the two support plates 22. In this way, the inclined blade surface 24 can serve as a blade edge to make line contact with the ton bag in advance, so that the inclined blade surface 24 itself has a certain pre-cutting ability, increasing the pre-cutting effect of the ton bag.
[0038] Among them, in further embodiments based on the above, the blade receiving groove 25 is opened on the outer corner side of the two support plates 22 on the same branch arrow, and the side close to the outer corner of the blade receiving groove 25 is open, and the upper end of the blade receiving groove 25 extends to the cut inclined blade surface 24, and the outer end of the inclined blade surface 24 constitutes a pre-cutting sharp end 23. In this way, the cutting sharp end 23 can cooperate with the weight of the ton bag to quickly form a cut on the ton bag, so that the cutting tool 3 can slide out of the blade receiving groove 25 to efficiently cut the ton bag.
[0039] Among them, in further embodiments based on the above, each branch arrow is arranged between two cutting slots 12 without repetition. That is, in use, each cutting slot 12 only needs to correspond to the blade receiving groove 25 of one support plate 22.
[0040] Among them, in further embodiments based on the above, between every two shell bodies, an installation seat 11 is arranged close to the center of the cutting bag shell body 1, and the installation seat 11 is used to connect the connecting seat 21. Among them, the installation seat 11 and the connecting seat 21 are detachably connected through bolts.
[0041] As attached Figure 2 As shown, in another specific embodiment based on the above, the bag cutter housing 1 is composed of four equally spaced support housings connected around a center to form a cross-shaped structure.
[0042] In another specific embodiment based on the above, a detection sensor 4 is also included. The detection sensor 4 is installed on the bag-cutting machine housing 1 and is electrically connected to the drive structure. It is used to sense whether the ton bag is falling and to control the drive structure. In this solution, two detection sensors 4 may be symmetrically arranged.
[0043] When this utility model device is in use, the ton bag falls and first contacts the central arrow 2, which tears it open continuously. The ton bag continues to fall until it is detected by the detection sensor 4. The detection sensor 4 controls the drive structure to synchronously drive the cutting blade 3 to slide out of the central arrow 2 at a uniform speed and smoothly, and cut and tear the bottom of the ton bag to the maximum extent along the diagonal cutting line 12 to complete the cutting of the ton bag. After the ton bag is cut, it is removed. After the detection sensor 4 senses it, it controls the drive structure to drive the cutting blade 3 to slide back into the central arrow 2, waiting for the next cut.
[0044] This utility model device occupies little space and has a compact structure. The middle arrow 2 not only has the function of pre-cutting the bag, but also protects the cutting blade 3. In use, the cutting blade 3 and the middle arrow 2 form a gapless docking mode, which can make the ton bag crack along the set geometric pattern, forming a complete cross-shaped route for through-cutting. It can quickly and automatically cut the ton bag to the maximum extent. Furthermore, the split structure of the cutting blade 3 and the middle arrow 2 makes it easy to disassemble, replace and maintain the parts.
[0045] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0046] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.
Claims
1. A bag-cutting machine with a central arrow, characterized in that: The package cutter housing (1), the central arrow (2), the cutting blade (3), and the drive structure are included. The package cutter housing (1) is composed of a number of equally spaced support housings connected around a center. Each support housing has a cutting slit (12) extending from the center of the package cutter housing (1) to a point away from the center. Each cutting slit (12) has a cutting blade (3) slidably disposed in it. The interior of each support housing is provided with a drive structure for driving the cutting blade (3) to reciprocate along the cutting slit (12). The central arrow (2) is installed at the center of the package cutter housing (1). The upper end of the central arrow (2) is an upward-pointing tip. The side wall of the central arrow (2) has a blade receiving groove (25) corresponding to the cutting slit (12) for the cutting blade (3) to move and retract along the cutting slit (12).
2. A bag-cutting machine with a central arrow as described in claim 1, characterized in that: The central arrow (2) is composed of several branch arrows. Each branch arrow includes a connecting seat (21) and two support plates (22). The two support plates (22) are connected on one side and are set at an angle to the upper end of the connecting seat (21). The upper end of each support plate (22) is provided with a slanted blade surface (24) that is higher on the inside and lower on the outside. The side wall of the support plate (22) is provided with the blade groove (25). Each branch arrow is connected to each other at equal intervals through the outer corners of the two support plates (22). Each branch arrow is set between the two cutting seams (12).
3. A bag-cutting machine with a central arrow as described in claim 2, characterized in that: The included angle between the two support plates (22) on the same support arrow is the same as the included angle between the two support housings.
4. A bag-cutting machine with a central arrow as described in claim 2, characterized in that: The oblique blades (24) at the upper ends of the two support plates (22) on the same branch arrow are all inclined downward toward the inner corner of the two support plates (22).
5. A bag-cutting machine with a central arrow as described in claim 4, characterized in that: The cutting groove (25) is opened on one side of the outer corner of the two support plates (22) on the same branch arrow, and the side of the cutting groove (25) near the outer corner is open. The upper end of the cutting groove (25) extends to cut the oblique blade (24), and the outer end of the oblique blade (24) forms a pre-cutting tip (23).
6. A bag-cutting machine with a central arrow as described in claim 2, characterized in that: Each of the branch arrows is set non-repeatingly between the two cutting seams (12).
7. A bag-cutting machine with a central arrow as described in claim 2, characterized in that: Between each two of the support housings, a mounting seat (11) is provided near the center of the bag cutter housing (1), the mounting seat (11) being used to connect the connecting seat (21).
8. A bag-cutting machine with a central arrow as described in claim 7, characterized in that: The mounting base (11) and the connecting base (21) are detachably connected by bolts.
9. A bag-cutting machine with a central arrow as described in claim 1, characterized in that: The casing (1) of the bag cutter is composed of four equally spaced support casings connected around a center to form a cross-shaped structure.
10. A bag-cutting machine with a central arrow as described in claim 1, characterized in that: It also includes a detection sensor (4), which is installed on the bag cutter housing (1). The detection sensor (4) is electrically connected to the drive structure and is used to sense whether the ton bag is falling and control the drive structure.