Cutting device and automatic unpacking equipment

Abstract

The utility model provides a cutting device and automatic unpacking equipment. The cutting device comprises a base part and a cutting part. The base part is provided with a first end part and a second end part in the circumferential direction of the cutting device, and the first end part and the second end part are arranged in a spaced mode. The cutting part is arranged on the base part and provided with a first tangent plane and a second tangent plane connected with the first tangent plane, and the first tangent plane and the second tangent plane are arranged at an acute angle. The cutting part is provided with a tip at a position corresponding to at least one of the first end part and the second end part, the tip comprises a pinnacle and a valley bottom, and the protruding height of the cutting part relative to the base part at the pinnacle is greater than the protruding height of the cutting part relative to the base part at the valley bottom. The pinnacle is located at the first end and / or the second end, and the valley bottom is located between the first end and the second end. Therefore, the sharp degree of the tip can be improved, the cutting part forms an included angle with the ton bag when making contact with the ton bag, the cutting part can smoothly cut the ton bag, chippings can be prevented from being generated in the cutting process, and then the situation that powder is polluted by the chippings is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of unpacking equipment, and in particular to a cutting device and automatic unpacking equipment. Background Art

[0002] In industrial production, powders are often stored in ton bags for easy transportation and use. To remove the powder, the bag is typically cut open, allowing the powder to flow out through the opening. Traditional cutting devices can cause rips between the cutting device and the bag, generating a large amount of debris that can contaminate the powder. Utility Model Content

[0003] The present application provides a cutting device and automatic unpacking equipment to solve the problem that the cutting device easily generates debris when cutting ton bags.

[0004] In a first aspect, the present application provides a cutting device, comprising a base and a cutting portion. The base has a first end and a second end along the circumferential direction of the cutting device, and the first end and the second end are spaced apart. The cutting portion is arranged on the base, and the cutting portion has a first tangent plane and a second tangent plane connected to the first tangent plane, and the first tangent plane and the second tangent plane are arranged at an acute angle. The cutting portion is provided with a tip at a position corresponding to at least one of the first end and the second end. The tip includes a peak and a valley, and the height of the cutting portion protruding relative to the base at the peak is greater than the height of the cutting portion protruding relative to the base at the valley. The peak is located at the first end and / or the second end, and the valley is located between the first end and the second end.

[0005] In combination with the first aspect, in some implementations of the first aspect, the cutting portion is provided with at least one tip at a position other than the first end and the second end.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the height of the cutting portion protruding relative to the base decreases continuously from the peak to the valley bottom.

[0007] In combination with the first aspect, in some implementations of the first aspect, at least one hollow hole is provided on the base.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the cutting device further includes a mounting structure, the mounting structure being connected to the base, a ventilation duct being provided in the mounting structure, and an air outlet connected to the ventilation duct being provided in the mounting structure at a position close to the base.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the base is annular, the mounting structure is provided in plurality, and the plurality of mounting structures are arranged at intervals along the circumferential direction of the cutting device, and the air outlet direction of the air outlet on each of the mounting structures is parallel to the tangential direction of the base at the connection between the mounting structure and the base.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the cutting device further includes a mounting seat, the mounting seat is connected to the mounting structure, and the base is detachably connected to the mounting seat.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the mounting base includes a base body, a locking piece, and an elastic piece, the locking piece is used to fixedly connect the base and the base body together, and the elastic piece elastically abuts between the base body and the locking piece.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the cutting device further includes a connecting seat, the end of the mounting structure away from the base is connected to the connecting seat, an air storage chamber is provided in the connecting seat, and the air storage chamber is connected to the ventilation duct.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the mounting structure includes a first mounting member, a second mounting member, and an adjusting member, the first mounting member is connected to the base, the second mounting member is connected to the connecting seat, and the adjusting member is connected between the first mounting member and the second mounting member, and is used to adjust the distance between the end of the first mounting member away from the second mounting member and the connecting seat.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the cutting device further includes a flow guide, the flow guide including a first flow guide portion and a second flow guide portion, the first flow guide portion is conical, the second flow guide portion is connected to a side of the first flow guide portion close to the connecting seat, and is clamped with the connecting seat.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the cutting device further includes a lifting structure and a sealing member, the connecting seat is connected to the lifting structure, the lifting structure is used to drive the connecting seat to move, and the sealing member is connected to the connecting seat and the lifting structure.

[0016] In a second aspect, the present application provides an automatic unpacking device, which includes a cutting device as described in any one of the above.

[0017] In the cutting device and automatic unpacking equipment provided by the present application, the first end and the second end of the base are arranged at intervals along the circumferential direction of the cutting device, the first cut surface and the second cut surface of the cutting portion are arranged at an acute angle, at least one of the first end and the second end is provided with a tip, the tip includes a peak and a valley bottom, the height of the cutting portion protruding relative to the base at the peak is greater than the height of the cutting portion protruding relative to the base at the valley bottom, the peak is located at the first end and / or the second end, and the valley bottom is located between the first end and the second end, so that the angle of the tip at the peak can be reduced, and the cutting portion at the peak can be improved. The sharpness of the tip is conducive to the puncture of the ton bag when the cutting part cuts the ton bag. After the tip punctures the ton bag, due to the different protruding heights of the tip and the valley bottom of the cutting part relative to the base, the cutting part located between the tip and the valley bottom forms an angle with the ton bag when in contact, and the cutting part can smoothly cut the ton bag, which is conducive to avoiding the generation of debris during the cutting process, thereby avoiding the debris from contaminating the powder. In addition, the spacing between the first end and the second end can enable the uncut part of the ton bag at the gap between the first end and the second end to remain connected to the ton bag, avoiding falling into the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a structural diagram of the automatic unpacking equipment provided in an embodiment of the present application.

[0020] Figure 2 It is a schematic structural diagram of the cutting device provided in an embodiment of the present application.

[0021] Figure 3 It is a cross-sectional view of the cutting piece and the mounting seat provided in an embodiment of the present application.

[0022] Figure 4 This is a cross-sectional view of the cutting device provided in an embodiment of the present application.

[0023] Figure 5 is a partial cross-sectional view of a cutting device provided in some embodiments of the present application.

[0024] Explanation of the main reference numerals: Automatic unpacking device 100; Cutting device 5; Cutting member 51; Base 511; First end 5111; Second end 5112; Hollow hole 5101; Through hole 5102; Cutting portion 512; First cut surface 5121; Second cut surface 5122; Third cut surface 5123; Tip 5124; Peak 5125; Valley 5126; Mounting structure 52; Air outlet 5202; First mounting member 521; Second mounting member 522; First segment 5221; Second segment 5222; Adjusting member 523; Connecting member 524; Connecting pipe 525; Connecting seat 53; Air storage chamber 530; Mounting seat 54; Seat body 541; Mounting groove 5411; Mounting hole 5412 ;Abutment part-5413;Locking piece-542;First locking part-5421;Second locking part-5422;Elastic piece-543;Flow guide piece-55;First flow guide part-551;Second flow guide part-552;First sub-flow guide part-5521;Second sub-flow guide part-5522;Lifting structure-56;Fixer-561;Moving piece-562;Sealing piece-563;Sealing cavity-5630;Fastener-564;Accommodating box-565;Fixed bracket-566;Accommodating space-5651;Unloading device-6;First hopper-61;Accommodating cavity-611;Dust suction port-6111;Second hopper-62;Feed port-6221;Dust suction structure-63;Aggregating structure-64;Bag pushing device-7;Circumferential direction-C;Radial direction-R;Height direction-Z.

[0025] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments in this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] It should be noted that the terms in the specification and claims of this application and the above-mentioned drawings are intended only to describe specific embodiments and are not intended to limit this application. The terms "first," "second," and so on in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in this application refers to any and all possible combinations of one or more of the associated listed items, including and including these combinations.

[0029] Please also refer to Figure 1 and Figure 2 , Figure 1 1 is a structural diagram of the automatic unpacking device 100 provided in an embodiment of the present application. Figure 2 Schematic diagram of the structure of the cutting device 5 provided in the embodiment of the present application. In the embodiment of the present application, in order to describe more clearly, Figure 2 For reference, in this application, the C-axis direction is defined as the circumferential direction of the cutting device 5, the R-axis is defined as the radial direction of the cutting device 5, and the Z-axis is defined as the height direction of the cutting device 5. The circumferential direction C, the radial direction R, and the height direction Z are perpendicular to each other.

[0030] The automatic unpacking device 100 is used to unpack ton bags to remove the powder from them. The automatic unpacking device 100 includes a cutting device 5 and a discharge device 6. The cutting device 5 is mounted within the discharge device 6. The cutting device 5 is used to cut the ton bag, allowing the powder to flow out of the bag through the cut. The discharge device 6 is used to collect the powder that flows out of the ton bag.

[0031] The cutting device 5 includes a cutting member 51. The cutting member 51 includes a base 511 and a cutting portion 512. The base 511 extends along the circumferential direction C of the cutting device 5. The base 511 has a first end 5111 and a second end 5112 along the circumferential direction C of the cutting device 5. The first end 5111 and the second end 5112 are spaced apart.

[0032] The base 511 is arranged in a ring shape. Herein, the ring shape means that the part of the base 511 between the first end 5111 and the second end 5112 is continuous, and the orthographic projection of the base 511 on the projection plane perpendicular to the height direction Z of the cutting device 5 is substantially in a semi - enclosed shape, such as in a C - shape, a U - shape, a three - quarter - circle shape, a five - sixth - circle shape, etc. Exemplarily, in this embodiment, the base 511 is configured as a circular ring. The circumferential direction C is the extending direction of the base 511, that is, the circumferential direction C is the circular direction. In some embodiments, the base 511 can be configured as an elliptical ring, a triangular ring, a rectangular ring, a regular polygon ring, an irregular polygon ring, etc. Herein, when the base 511 is configured as a polygon ring, the circumferential direction C is generally in a polygonal shape as a whole, and at each corresponding side, the circumferential direction C is parallel to the extending direction of the side. For example, when the base 511 is configured as a U - shape, for the three sides of the base 511, the circumferential direction C is parallel to the extending direction of the corresponding side, and the circumferential direction C is generally in a U - shape as a whole. In this embodiment, along the height direction Z of the cutting device 5, the heights of the respective parts of the base 511 between the first end 5111 and the second end 5112 are the same or similar.

[0033] Please refer to Figure 2 and Figure 3 , Figure 3 which is a cross - sectional view of the cutting member 51 and the mounting base 54 provided in the embodiment of the present application. The cutting part 512 is arranged on the base 511. The cutting part 512 has a first cutting surface 5121 and a second cutting surface 5122 connected to the first cutting surface 5121. The first cutting surface 5121 is located inside the cutting part 512, that is, on the side close to the annular center of the base 511. The second cutting surface 5122 is located outside the cutting part 512, that is, on the side far from the annular center of the base 511. The first cutting surface 5121 and the second cutting surface 5122 are connected on the side far from the base 511. The intersection line formed by the intersection of the first cutting surface 5121 and the plane parallel to the height direction Z of the cutting device 5 can be a straight line or a curve. The intersection line formed by the intersection of the second cutting surface 5122 and the plane parallel to the height direction Z of the cutting device 5 can be a straight line or a curve. Exemplarily, in this embodiment, the intersection lines formed by the intersection of the first cutting surface 5121 and the second cutting surface 5122 with the plane parallel to the height direction Z of the cutting device 5 are respectively straight lines.

[0034] The first cut surface 5121 and the second cut surface 5122 are arranged at an acute angle to facilitate the cutting of the ton bag by the cutting portion 512. The angle between the first cut surface 5121 and the second cut surface 5122 can be set according to actual needs and is not specifically limited in this application. For example, the angle between the first cut surface 5121 and the second cut surface 5122 can be 20°-60°, and the angle between the first cut surface 5121 and the second cut surface 5122 can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc.

[0035] In this embodiment, the second cut surface 5122 is cylindrical, and the intersection line formed by the second cut surface 5122 and a plane parallel to the height direction Z of the cutting device 5 is parallel to the height direction Z of the cutting device 5. The first cut surface 5121 is frustum-shaped, and the intersection line formed by the first cut surface 5121 and a plane parallel to the height direction Z of the cutting device 5 forms an angle with the height direction Z of the cutting device 5. As a result, when the powder falls, the first cut surface 5121 guides the powder toward the center of the cutting member 51, preventing the powder from spreading outward and reducing dust generated by the falling powder.

[0036] In some embodiments, the cutting portion 512 further includes a third cut surface 5123. The third cut surface 5123 is connected to the side of the first cut surface 5121 near the base 511. The third cut surface 5123 is arranged at an obtuse angle to the first cut surface 5121. Along the radial direction of the cutting device 5, the thickness of the cutting portion 512 at the third cut surface 5123 is greater than the thickness of the cutting portion 512 at the first cut surface 5121. Thus, the third cut surface 5123 can improve the overall strength of the cutting portion 512, reduce the risk of the cutting portion 512 collapsing at the first cut surface 5121, and thus increase the service life of the cutting device 5.

[0037] In this embodiment, the cutting portion 512 is provided with a tip 5124 at a position corresponding to one of the first end 5111 and the second end 5112. The tip 5124 includes a peak 5125 and a valley 5126. Along the height direction of the cutting device 5, the height of the cutting portion 512 protruding from the base 511 at the peak 5125 is greater than the height of the cutting portion 512 protruding from the base 511 at the valley 5126. The valley 5126 is located between the first end 5111 and the second end 5112. The peak 5125 is located at the first end 5111 and / or the second end 5112. In this way, along the circumferential direction C of the cutting device 5, the side wall of the peak 5125 located at the first end 5111 and / or the second end 5112 away from the valley bottom 5126 is parallel to the height direction Z of the cutting device 5, which can reduce the angle of the tip 5124 at the peak 5125, thereby increasing the sharpness of the cutting portion 512 at the peak 5125, which is conducive to the peak 5125 piercing the ton bag when the cutting portion 512 cuts the ton bag. In the embodiment of the present application, the first end 5111 and the second end 5112 of the base 511 are spaced apart along the circumferential direction C of the cutting device 5, the first cut surface 5121 and the second cut surface 5122 of the cutting portion 512 are arranged at an acute angle, at least one of the first end 5111 and the second end 5112 is provided with a tip 5124, the top 5125 of the tip 5124 is located at the first end 5111 and / or the second end 5112, and the valley bottom 5126 is located between the first end 5111 and the second end 5112. After the top 5125 punctures the ton bag, due to the cutting portion 51 The peak 5125 and the valley bottom 5126 of the 2 are projected at different heights relative to the base 511. The portion of the cutting portion 512 located between the peak 5125 and the valley bottom 5126 forms an angle when in contact with the ton bag, so that the cutting portion 512 can smoothly cut the ton bag, which helps to avoid the generation of debris during the cutting process and further prevent the debris from contaminating the powder. In addition, the first end 5111 and the second end 5112 are spaced apart so that the uncut portion of the ton bag at the gap between the first end 5111 and the second end 5112 can remain connected to the other parts of the ton bag, preventing it from falling into the powder.

[0038] For example, in this embodiment, the cutting portion 512 is provided with a tip 5124 at positions corresponding to the first end 5111 and the second end 5112. In some embodiments, the cutting portion 512 is provided with a tip 5124 at a position corresponding to the first end 5111 or the second end 5112, and the height of the cutting portion 512 protruding from the base 511 gradually decreases or increases from the first end 5111 to the second end 5112, and the cutting portion 512 is spirally arranged between the first end 5111 and the second end 5112.

[0039] In some embodiments, the cutting portion 512 is provided with at least one tip 5124 at a position outside the corresponding first end 5111 and the second end 5112. For example, the cutting portion 512 is provided with a tip 5124 at a position midway between the corresponding first end 5111 and the second end 5112. The cutting portion 512 is formed with three peaks 5125 and two valleys 5126. In this way, when the cutting portion 512 cuts the ton bag, the three peaks 5125 quickly pierce the bottom of the ton bag. At this time, the bottom of the ton bag remains connected at three locations, which helps the bottom of the ton bag remain taut under the pressure of the powder inside. The powder will not pour out at the locations of the peaks 5125, or will only pour out to a small extent. The bottom of the ton bag will remain taut until the valley 5126 of the cutting portion 512 enters the ton bag. In other words, the powder will pour out from the incision only after the portion of the ton bag bottom corresponding to the cutting portion 512 is completely cut, thereby making the cut of the ton bag smoother and effectively reducing or avoiding the generation of debris by the cutting portion 512 when cutting the ton bag. The number of peaks 5124 can be specifically set according to actual needs and is not specifically limited in this application. For example, the number of peaks 5124 is 2-5.

[0040] Along the height direction Z of the cutting device 5, the protrusion height of the cutting portion 512 relative to the base 511 decreases continuously from the peak 5125 to the valley 5126. Thus, the cutting portion 512 is smooth and continuous between the peak 5125 and the valley 5126, allowing the cutting portion 512 to smoothly cut the ton bag and reducing or eliminating the shaking of the cutting portion 512 when cutting the ton bag, thereby reducing or preventing the generation of debris during the cutting process.

[0041] In this embodiment, the protruding height of each peak 5125 of the cutting portion 512 relative to the base 511 is the same, so that when cutting the ton bag, each peak 5125 can contact the bottom of the ton bag at the same time, thereby improving the uniformity of the force applied to the cutting piece 51 during cutting and improving the smoothness of the incision on the ton bag.

[0042] The base 511 is provided with at least one hollow hole 5101. This reduces the mass of the base 511, making the cutting device 5 lightweight. Furthermore, the powder can flow out through the hollow hole 5101 during its fall, reducing obstruction of the powder by the cutting element 51 and increasing the falling speed. In some embodiments, the hollow hole 5101 can extend into the cutting portion 512 to reduce the mass of the cutting element 51. The shape of the hollow hole 5101 can be customized according to actual needs and is not specifically limited in this application.

[0043] The cutting device 5 also includes a mounting structure 52. The mounting structure 52 is connected to the base 511 to fix the base 511. A ventilation duct is provided in the mounting structure 52. The mounting structure 52 is provided with an air outlet 5202 connected to the ventilation duct at a position close to the base 511. The ventilation duct is used to be connected to the air supply structure, and the air supply structure is used to pump gas into the ventilation duct. In this way, after the cutting piece 51 cuts the ton bag, the air outlet 5202 on the mounting structure 52 can blow air into the ton bag. The gas can increase the fluidity of the powder and maintain a positive pressure in the ton bag, thereby increasing the falling speed of the powder, and can blow off the powder attached to the inner wall of the ton bag to prevent the powder from remaining in the ton bag.

[0044] The number of the air outlet holes 5202 on each mounting structure 52 can be set according to actual needs and is not specifically limited in this application. For example, the number of the air outlet holes 5202 on each mounting structure 52 can be set to 1, 2, 3, 4, 5, etc.

[0045] There are multiple mounting structures 52. The multiple mounting structures 52 are arranged at intervals along the circumferential direction C of the cutting device 5. The base 511 is annular, and the outlet direction of the air outlet hole 5202 on each mounting structure 52 is parallel to the tangential direction of the base 511 at the connection between the mounting structure 52 and the base 511. Specifically, when the base 511 is in the shape of a circular ring, the tangential direction of the base 511 at the connection between the mounting structure 52 and the base 511 is perpendicular to the radial direction of the base 511. Exemplarily, when the base 511 is in the shape of a polygonal ring, the tangential direction of the base 511 at the connection between the mounting structure 52 and the base 511 is parallel to the extension direction of the base 511 at the corresponding side. In this way, the air outlet direction of the air outlet hole 5202 is parallel to the tangential direction of the base 511. Air is blown into the ton bag through the air outlet holes 5202 on the multiple mounting structures 52, which can form a rotating airflow inside the ton bag, thereby better improving the fluidity of the powder and more thoroughly blowing off the powder attached to the inner wall of the ton bag.

[0046] The plurality of mounting structures 52 are arranged at equal intervals along the circumferential direction C of the cutting device 5 to enhance the stability of the mounting structures 52 in supporting the cutting element 51. The number of mounting structures 52 can be set based on actual needs and is not specifically limited in this application. For example, the number of mounting structures 52 can be 3, 4, 5, 6, etc.

[0047] The cutting device 5 also includes a connecting base 53. The end of the mounting structure 52 distal from the connecting base 53 is connected to the connecting base 53. An air storage chamber 530 is disposed within the connecting base 53. The air storage chamber 530 communicates with the ventilation duct of the mounting structure 52. The pressure equalization provided by the air storage chamber 530 ensures that the outlet pressure and air flow rate of each outlet hole 5202 on the mounting structure 52 are consistent or similar, thereby improving the uniformity of air blowing at various locations within the ton bag and preventing uneven force on the ton bag and resulting in deflection.

[0048] The mounting structure 52 includes a first mounting member 521, a second mounting member 522, and an adjustment member 523. The end of the first mounting member 521 facing away from the second mounting member 522 is connected to the base 511. The end of the second mounting member 522 facing away from the first mounting member 521 is connected to the connecting seat 53. The adjustment member 523 is connected between the first mounting member 521 and the second mounting member 522. The adjustment member 523 is used to adjust the distance between the end of the first mounting member 521 facing away from the second mounting member 522 and the connecting seat 53. The distance between the end of the first mounting member 521 facing away from the second mounting member 522 and the connecting seat 53 can refer to the distance along the height direction Z of the cutting device 5 between the end surface of the first mounting member 521 facing away from the second mounting member 522 and the surface of the connecting seat 53 facing the base 511. By adjusting the adjustment member 523, the horizontal height of the first mounting member 521 can be adjusted. This allows for leveling of the base 511 during installation of the cutting member 51, facilitating installation of the cutting member 51. For example, the ends of all the first mounting members 521 away from the second mounting member 522 may be adjusted to the same level, thereby improving the horizontal installation accuracy of the base 511 .

[0049] The second mounting member 522 includes a first segment 5221 and a second segment 5222. The first segment 5221 is connected to the second segment 5222. The first segment 5221 extends at an angle to the second segment 5222. The end of the first segment 5221 facing away from the second segment 5222 is connected to the adjustment member 523. The end of the second segment 5222 facing away from the first segment 5221 is connected to the connecting seat 53. The extending direction of the first segment 5221 can be parallel to the extending direction of the first mounting member 521. The extending direction of the first mounting member 521 is parallel to the height direction Z of the cutting device 5. This increases the load-bearing capacity of the first mounting member 521 along the height direction Z of the cutting device 5 and improves the stability of the cutting member 51 when subjected to external forces. In this embodiment, the provision of the second segment 5222 can reduce the radial dimension R of the connecting seat 53, thereby reducing the blocking effect of the connecting seat 53 on the powder and increasing the falling speed of the powder.

[0050] For example, the extending direction of the first segment 5221 and the extending direction of the second segment 5222 may be arranged at a right angle. In some embodiments, the extending direction of the first segment 5221 and the extending direction of the second segment 5222 may also be arranged at an obtuse angle.

[0051] In some embodiments, the mounting structure 52 further includes a connector 524. The connector 524 is fixedly connected to the first segment 5221 and the second segment 5222, respectively. The connector 524 can act as a reinforcing rib to improve the overall structural strength of the second mounting member 522 and prevent the connection between the first segment 5221 and the second segment 5222 from bending or breaking under the action of external force. The connector 524 can be constructed as a sheet-like structure, and the connector 524 is arranged parallel to the height direction Z of the cutting device 5 to improve the bearing capacity of the connector 524 along the height direction Z of the cutting device 5. The connector 524 can be provided in multiple numbers. Exemplarily, the first segment 5221 is provided with connectors 524 on the side close to the connecting seat 53 and the side away from the connecting seat 53, respectively.

[0052] The cutting device 5 also includes a mounting base 54. The mounting base 54 is connected to the end of the mounting structure 52 away from the connecting base 53. The base 511 and the mounting base 54 are detachably connected to each other to reduce the difficulty of disassembling and assembling the cutting member 51 during inspection or replacement, thereby facilitating maintenance of the cutting device 5.

[0053] The mounting base 54 includes a base body 541 and a locking member 542. The locking member 542 is used to securely connect the base 511 to the base body 541. A mounting groove 5411 is provided on the base body 541. The base 511 is accommodated in the mounting groove 5411. The locking member 542 is used to secure the base 511 within the mounting groove 5411. A mounting hole 5412 communicating with the mounting groove 5411 is provided on the side wall of the base body 541. The base 511 is provided with a through hole 5102 at a position corresponding to the mounting hole 5412. The locking member 542 is passed through the mounting hole 5412 and the through hole 5102 to secure the base 511 to the base body 541.

[0054] In some embodiments, the mounting base 54 further includes an elastic member 543. The elastic member 543 is disposed in the mounting hole 5412. An abutment portion 5413 is protruded from the wall of the mounting hole 5412. The abutment portion 5413 can be configured as an annular protrusion. The elastic member 543 elastically abuts between the abutment portion 5413 and the locking member 542. The elastic member 543 is used to provide an abutment force for the locking member 542, maintaining a tight connection between the locking member 542 and the base 541 and preventing the locking member 542 from loosening and falling off the base 541.

[0055] In some embodiments, the locking member 542 includes a first locking portion 5421 and a second locking portion 5422. The first locking portion 5421 and the second locking portion 5422 are located on opposite sides of the abutting portion 5413. The first locking portion 5421 and the second locking portion 5422 are fixedly connected by threaded connection, clamping, bonding, etc. The second locking portion 5422 abuts against the side of the abutting portion 5413 away from the first locking portion 5421. The elastic member 543 elastically abuts between the first locking portion 5421 and the abutting portion 5413. The first locking portion 5421 is inserted into the through hole 5102. In some embodiments, the locking member 542 can be configured as a screw or a bolt, and the locking member 542 is threadedly connected to the base 541.

[0056] Please also refer to Figure 2 and Figure 4 , Figure 4 : is a cross-sectional view of the cutting device 5 provided in an embodiment of the present application. The cutting device 5 also includes a flow guide 55. The flow guide 55 is snap-fitted to the connecting seat 53 to simplify the fixing method of the flow guide 55, avoid the flow guide 55 being connected to the connecting seat 53 by screws, thereby preventing the screws from loosening and falling into the powder after long-term use, and reducing the difficulty of installing the flow guide 55. The side of the flow guide 55 away from the connecting seat 53 is conical and protrudes in a direction away from the connecting seat 53. The flow guide 55 can be pyramidal or conical. The flow guide 55 is used to guide the powder as it falls, causing the powder to slide along the conical surface of the flow guide 55, reducing the impact of the powder on the connecting seat 53. In addition, the flow guide 55 can also break up agglomerated powder. The shielding effect of the flow guide 55 can also prevent powder from accumulating at the connection between the mounting structure 52 and the connecting seat 53.

[0057] The flow guide 55 includes a first flow guide portion 551 and a second flow guide portion 552. The first flow guide portion 551 is conical and is located on the side of the connecting seat 53 facing the cutting member 51. The second flow guide portion 552 is connected to the side of the first flow guide portion 551 close to the connecting seat 53 and is clamped with the side wall of the connecting seat 53. There are multiple second flow guide portions 552, and the multiple second flow guide portions 552 are arranged at intervals. The mounting structure 52 is located between two adjacent second flow guide portions 552. The second flow guide portion 552 can be elastically deformed relative to the first flow guide portion 551, and generates elastic internal stress during elastic deformation. Two second flow guide portions 552 on opposite sides of the multiple second flow guide portions 552 elastically clamp the connecting seat 53.

[0058] The second flow-guiding portion 552 includes a first sub-flow-guiding portion 5521 and a second sub-flow-guiding portion 5522. The first sub-flow-guiding portion 5521 is connected between the second sub-flow-guiding portion 5522 and the first flow-guiding portion 551. The second sub-flow-guiding portion 5522 is bent relative to the first sub-flow-guiding portion 5521, away from the connecting seat 53. The first sub-flow-guiding portion 5521 is used to clamp the connecting seat 53. When the powder slides along the second sub-flow-guiding portion 5522, the second sub-flow-guiding portion 5522 can guide the powder away from the connecting seat 53.

[0059] Please also refer to Figure 4 and Figure 5 , Figure 5 This is a partial cross-sectional view of a cutting device 5 provided in some embodiments of the present application. The cutting device 5 also includes a lifting structure 56. The connecting base 53 is connected to the lifting structure 56. The lifting structure 56 is used to drive the connecting base 53 to move along the height direction Z of the cutting device 5. The connecting base 53 drives the mounting structure 52 and the cutting element 51 to move, thereby moving the cutting element 51 toward or away from the ton bag. The diversion function of the second sub-flow guide 5522 can reduce or prevent contact between the powder and the lifting structure 56, preventing the powder from accumulating on the lifting structure 56.

[0060] The lifting structure 56 includes a fixed member 561 and a movable member 562. The connecting base 53 is connected to the end of the movable member 562 away from the fixed member 561. The movable member 562 is used to drive the connecting base 53 to move relative to the fixed member 561. For example, the lifting structure 56 can be configured as a cylinder, with the fixed member 561 configured as a cylinder body and the movable member 562 configured as a piston rod. In some embodiments, the lifting structure 56 can also be configured as other types of drive structures, such as an electric push rod, a scissor lift, etc.

[0061] The lifting structure 56 also includes a sealing member 563. The sealing member 563 is connected to the connecting seat 53 and the fixing member 561 to form a sealed cavity 5630. The movable member 562 is arranged in the sealed cavity 5630. The sealing member 563 is used to protect the lifting structure 56 to prevent dust from entering between the movable member 562 and the fixing member 561, which would cause the movement of the movable member 562 relative to the fixing member 561 to be obstructed or damaged. The sealing member 563 is configured as a telescopic structure or an elastic structure. When the movable member 562 moves relative to the fixing member 561, the sealing member 563 can be deformed as the movable member 562 moves. For example, the sealing member 563 can be configured as an accordion cover. In some embodiments, the sealing member 563 can also be configured as other telescopic or elastic sealing members, which is not specifically limited in this application.

[0062] The lifting structure 56 also includes a fastener 564. The fastener 564 is located within the sealed cavity 5630. The fastener 564 is used to securely connect the seal 563 to the connecting base 53. The fastener 564 can be configured as a screw or a bolt. In this embodiment, the fastener 564 is located within the sealed cavity 5630, thereby preventing the fastener 564 from being exposed. Even if the fastener 564 falls off during long-term use, the fastener 564 will fall into the sealed cavity 5630, effectively preventing the fastener 564 from falling into the powder, thereby greatly improving the safety of the automatic unpacking device 100.

[0063] The lifting structure 56 also includes a storage box 565. A storage space 5651 is provided in the storage box 565, and the fixing member 561 is accommodated in the storage space 5651. An opening is provided on the side of the storage box 565 near the connecting seat 53, which is connected to the storage space 5651. The movable member 562 extends from the opening into the storage space 5651. A sealing member 563 is connected to the storage box 565. The sealed cavity 5630 is connected to the storage space 5651. A fastener 564 is provided in the storage space 5651 and is used to securely connect the storage box 565 to the sealing member 563. The location of the fastener 564 in the storage space 5651 prevents the fastener 564 from falling into the powder, thereby improving safety.

[0064] The cutting device 5 further includes a connecting pipe 525. The connecting pipe 525 is provided on the side wall of the receiving box 565 of the lifting structure 56. The connecting pipe 525 is used to connect the gas storage chamber 530 with an external gas source so that the external gas source supplies gas to the gas storage chamber 530.

[0065] See also Figure 1 The automatic unpacking equipment 100 also includes a feeding device 6. The cutting device 5 is installed in the feeding device 6. The feeding device 6 is used to collect the powder flowing out of the ton bag. The feeding device 6 includes a first hopper 61 and a second hopper 62. The second hopper 62 is arranged above the first hopper 61. A accommodating chamber 611 is provided in the first hopper 61. The lower end of the second hopper 62 extends into the accommodating chamber 611 and is spaced from the side wall of the first hopper 61. A feed port 6221 is provided at the lower end of the second hopper 62. The cutting device 5 is installed in the first hopper 61 and extends from the feed port 6221 to the second hopper 62. Among them, the automatic unpacking equipment 100 also includes a fixed bracket 566. The fixed bracket 566 is used to fix the cutting device 5 to the first hopper 61. When the automatic unpacking equipment 100 is unpacking, the hook assembly of the automatic unpacking equipment 100 moves the ton bag to the second hopper 62, and the lifting structure 56 drives the cutting member 51 to cut the ton bag. The powder flows out from the cut of the ton bag and falls into the accommodating chamber 611 through the feed port 6221.

[0066] The unloading device 6 also includes a collecting device 64 connected to the bottom of the first hopper 61. The collecting device 64 is used to collect the powder that falls into the accommodating chamber 611 and transfer it to other equipment. The unloading device 6 also includes a dust suction structure 63. A dust suction port 623 is provided on the side wall of the first hopper 61. The dust suction structure 63 is arranged at the dust suction port 623. The dust suction structure 63 is used to filter the dust in the accommodating chamber 611. It can be understood that dust will be generated during the falling process of the powder. In this embodiment, the dust is blocked by the second hopper 62, and the suction action of the dust suction structure 63 forms a negative pressure in the accommodating chamber 611, thereby effectively preventing the dust from floating out of the accommodating chamber 611. Among them, the dust suction structure 63 is also used to transport the filtered powder back to the accommodating chamber 611, or to the collecting device 64.

[0067] The automatic unpacking device 100 also includes a bag pushing device 7. The bag pushing device 7 is disposed in the second hopper 62. During unpacking, the bag pushing device 7 pushes or taps the four corners of the ton bag toward the center of the ton bag, allowing all powder in the ton bag to be discharged through the slits, preventing any powder from remaining inside the ton bag.

[0068] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A cutting device (5), characterized in that: include: a base (511), the base (511) having a first end (5111) and a second end (5112) along a circumferential direction of the cutting device (5), the first end (5111) and the second end (5112) being spaced apart; A cutting portion (512), the cutting portion (512) being arranged on the base portion (511), the cutting portion (512) having a first cut surface (5121) and a second cut surface (5122) connected to the first cut surface (5121), the first cut surface (5121) and the second cut surface (5122) being arranged at an acute angle, the cutting portion (512) being provided with a tip (5124) at a position corresponding to at least one of the first end portion (5111) and the second end portion (5112), The tip (5124) includes a pointed top (5125) and a valley bottom (5126), the height of the cutting portion (512) protruding relative to the base (511) at the pointed top (5125) is greater than the height of the cutting portion (512) protruding relative to the base (511) at the valley bottom (5126), the pointed top (5125) is located at the first end (5111) and / or the second end (5112), and the valley bottom (5126) is located between the first end (5111) and the second end (5112).

2. The cutting device (5) according to claim 1, characterized in that The cutting portion (512) is provided with at least one tip (5124) at a position other than the first end portion (5111) and the second end portion (5112).

3. The cutting device (5) according to claim 1, characterized in that The height of the cutting portion (512) protruding relative to the base (511) continuously decreases from the peak (5125) to the valley bottom (5126).

4. The cutting device (5) according to claim 1, characterized in that At least one hollow hole (5101) is provided on the base (511).

5. The cutting device (5) according to claim 1, characterized in that The cutting device (5) further comprises a mounting structure (52), wherein the mounting structure (52) is connected to the base (511), a ventilation duct is provided in the mounting structure (52), and an air outlet (5202) connected to the ventilation duct is provided in the mounting structure (52) at a position close to the base (511).

6. The cutting device (5) according to claim 5, characterized in that The base (511) is annular, and the mounting structures (52) are provided in plurality, and the plurality of mounting structures (52) are arranged at intervals along the circumferential direction of the cutting device (5), and the air outlet direction of the air outlet hole (5202) on each of the mounting structures (52) is parallel to the tangential direction of the base (511) at the connection between the mounting structure (52) and the base (511).

7. The cutting device (5) according to claim 5, characterized in that The cutting device (5) further comprises a mounting seat (54), wherein the mounting seat (54) is connected to the mounting structure (52), and the base (511) is detachably connected to the mounting seat (54).

8. The cutting device (5) according to claim 7, characterized in that The mounting seat (54) includes a seat body (541), a locking piece (542) and an elastic piece (543), wherein the locking piece (542) is used to fixedly connect the base (511) and the seat body (541), and the elastic piece (543) elastically abuts between the seat body (541) and the locking piece (542).

9. The cutting device (5) according to claim 5, characterized in that The cutting device (5) further comprises a connecting seat (53), the end of the mounting structure (52) away from the base (511) being connected to the connecting seat (53), an air storage chamber (530) being provided in the connecting seat (53), and the air storage chamber (530) being in communication with the ventilation duct.

10. The cutting device (5) according to claim 9, characterized in that The mounting structure (52) includes a first mounting member (521), a second mounting member (522) and an adjusting member (523), wherein the first mounting member (521) is connected to the base (511), the second mounting member (522) is connected to the connecting seat (53), and the adjusting member (523) is connected between the first mounting member (521) and the second mounting member (522) and is used to adjust the distance between the end of the first mounting member (521) away from the second mounting member (522) and the connecting seat (53).

11. The cutting device (5) according to claim 9, characterized in that The cutting device (5) further comprises a flow guide (55), wherein the flow guide (55) comprises a first flow guide portion (551) and a second flow guide portion (552), wherein the first flow guide portion (551) is conical, and the second flow guide portion (552) is connected to a side of the first flow guide portion (551) close to the connecting seat (53) and is engaged with the connecting seat (53).

12. The cutting device (5) according to claim 9, characterized in that The cutting device (5) further comprises a lifting structure (56) and a sealing member (563), wherein the connecting seat (53) is connected to the lifting structure (56), the lifting structure (56) is used to drive the connecting seat (53) to move, and the sealing member (563) is connected to the connecting seat (53) and the lifting structure (56).

13. An automatic unpacking device (100), characterized in that: The automatic unpacking device (100) comprises a cutting device (5) according to any one of claims 1 to 12.

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