阅读说明：本技术 开罐器及其控制方法 (Can opener and control method thereof ) 是由 陈森元 邹海涛 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种开罐器及其控制方法,该开罐器包括支架、推动轮、开罐刀和刀轴；推动轮以自身中心轴为中心转动设置于支架上；刀轴的外壁设置有第一限位件,开罐刀转动套设于刀轴并位于第一限位件上,开罐刀与支架之间存在间隙；开罐刀的周壁设置有刀刃,且开罐刀靠近推动轮的第一端的周壁还设置有与刀刃间隔的第二限位件,刀刃与推动轮之间形成间隙。该开罐器及其控制方法提供的技术方案能够有效避免刀刃过度插入罐体,从而使刀刃在切割过程中有效避免罐体切口位置产生铁丝,且通过该第二限位件能够增大该刀刃和推动轮之间的间隙范围,降低精度要求。(The invention discloses a can opener and a control method thereof, wherein the can opener comprises a bracket, a push wheel, a can opener and a cutter shaft; the pushing wheel is rotationally arranged on the bracket by taking a self central shaft as a center; the outer wall of the cutter shaft is provided with a first limiting piece, the can opener is rotatably sleeved on the cutter shaft and positioned on the first limiting piece, and a gap is formed between the can opener and the support; the peripheral wall of the can opening knife is provided with a cutting edge, the peripheral wall of the can opening knife, which is close to the first end of the pushing wheel, is also provided with a second limiting piece which is spaced from the cutting edge, and a gap is formed between the cutting edge and the pushing wheel. The technical scheme provided by the can opener and the control method thereof can effectively prevent the cutting edge from being excessively inserted into the can body, so that the cutting edge can effectively prevent the position of the cut of the can body from generating iron wires in the cutting process, the gap range between the cutting edge and the pushing wheel can be enlarged through the second limiting part, and the precision requirement is reduced.)

1. The can opener is characterized by comprising a support, a pushing wheel, a can opener and a cutter shaft;

the pushing wheel is rotatably arranged on the bracket by taking a central shaft of the pushing wheel as a center;

a first limiting piece is arranged on the outer wall of the cutter shaft, the can opener is rotatably sleeved on the cutter shaft and positioned on the first limiting piece, and a gap is formed between the can opener and the support;

the peripheral wall of the can opening knife is provided with a cutting edge, the peripheral wall of the can opening knife, which is close to the first end of the pushing wheel, is also provided with a second limiting piece which is spaced from the cutting edge, and a gap is formed between the cutting edge and the pushing wheel.

2. The can opener of claim 1, wherein a first step is formed between the first end of the can opener and the cutting edge, and the radial length of the first end of the can opener is less than the radial length of the cutting edge, and the first step is the second stopper.

3. The can opener of claim 2 wherein the radial difference between the radial length of said first end of said opening knife and the radial length of said cutting edge is in the range of 0.05mm to 0.5 mm.

4. The can opener of claim 1, wherein said opener is a solid of revolution structure, said pushing wheel is disposed laterally in a bracket, said opener is disposed vertically in a bracket, and said opener is disposed obliquely with respect to a central axis of said bracket.

5. The can opener according to claim 1, wherein a second step is formed on the outer wall of the cutter shaft in the radial direction of the cutter shaft, and the second step is the first stopper.

6. The can opener of claim 1, further comprising a rotating support member, wherein the rotating support member comprises an inner ring and an outer ring sleeved on the inner ring and capable of rotating relatively, the inner ring is sleeved on the knife shaft and located on the first retaining member, and the pushing wheel is sleeved on the outer ring.

7. The can opener of claim 6 wherein said rotational support comprises a ball bearing.

8. The can opener of claim 1, further comprising a connecting shaft connected to the push wheel; the can opener is characterized in that an accommodating cavity which accommodates the connecting shaft and has a stroke space is formed in the support, the can opener further comprises an elastic piece which is accommodated in the accommodating cavity, and the elastic piece is sleeved on the connecting shaft.

9. A can opener according to any one of claims 1 to 8, further comprising a power mechanism provided on the support;

the power mechanism comprises a driving device and a transmission device, the output end of the driving device is connected with the input end of the transmission device, and the output end of the transmission device is connected with the pushing wheel.

10. A method of controlling a can opener, the method comprising the steps of:

controlling the can opener to move to a preset position of the can body, pushing the wheels to abut against the top of the can body, and pushing the can opener against the side wall of the can body;

the pushing wheel is controlled to rotate by taking the central shaft of the pushing wheel as a center, and the tank body is driven to rotate by taking the central shaft of the pushing wheel as a center in the rotating process;

the jar body rotates the in-process, the cutting edge of opening a jar sword is impressed the lateral wall of the jar body and is cut and form the cutting cut, when the cutting edge cuts the thickness of predetermineeing to jar side wall, the second locating part of opening a jar sword supports the jar side wall of cutting cut top.

Technical Field

The invention belongs to the technical field of can openers, and particularly relates to a can opener and a control method thereof.

Background

Can openers are common household appliances that are capable of cutting a can body to remove a top lid. A general can opener in market cuts the lateral wall of the jar body through the can opener in order to remove the top cap, uses this can opener to uncap the jar body and appears the condition of wire drawing easily to lead to the jar mouth after the cutting not smooth more.

Disclosure of Invention

The invention aims to provide a can opener and a control method thereof, which are used for overcoming the defect that the can opener in the prior art is easy to have wire drawing when cutting and uncovering a can body, so that a cut can opening is unsmooth.

The technical scheme is as follows:

a can opener comprises a bracket, a push wheel, a can opener and a cutter shaft;

the pushing wheel is rotatably arranged on the bracket by taking a central shaft of the pushing wheel as a center;

a first limiting piece is arranged on the outer wall of the cutter shaft, the can opener is rotatably sleeved on the cutter shaft and positioned on the first limiting piece, and a gap is formed between the can opener and the support;

the peripheral wall of the can opening knife is provided with a cutting edge, the peripheral wall of the can opening knife, which is close to the first end of the pushing wheel, is also provided with a second limiting piece which is spaced from the cutting edge, and a gap is formed between the cutting edge and the pushing wheel.

In one embodiment, a first step is formed between the first end of the can opener and the cutting edge, the radial length of the first end of the can opener is smaller than that of the cutting edge, and the first step is the second stopper.

In one embodiment, the radial difference between the radial length of the first end of the can opener and the radial length of the cutting edge ranges from 0.05mm to 0.5 mm.

In one embodiment, the can opener is of a revolving body structure, the pushing wheel is transversely arranged in the support, the can opener is vertically arranged in the support, and the can opener is obliquely arranged relative to a central shaft of the support.

In one embodiment, a second step is formed on the outer wall of the cutter shaft in the radial direction of the cutter shaft, and the second step is the first limiting piece.

In one embodiment, the can opener further comprises a rotating support member, the rotating support member comprises an inner ring and an outer ring which is sleeved on the inner ring and can rotate relatively, the inner ring is sleeved on the cutter shaft and is located on the first limiting member, and the pushing wheel is sleeved on the outer ring.

In one embodiment, the rotary support comprises a ball bearing.

In one embodiment, the can opener further comprises a connecting shaft connected with the pushing wheel; the can opener is characterized in that an accommodating cavity which accommodates the connecting shaft and has a stroke space is formed in the support, the can opener further comprises an elastic piece which is accommodated in the accommodating cavity, and the elastic piece is sleeved on the connecting shaft.

In one embodiment, the can opener further comprises a power mechanism arranged on the support;

the power mechanism comprises a driving device and a transmission device, the output end of the driving device is connected with the input end of the transmission device, and the output end of the transmission device is connected with the pushing wheel.

A method of controlling a can opener, the method comprising the steps of:

controlling the can opener to move to a preset position of the can body, pushing the wheels to abut against the top of the can body, and pushing the can opener against the side wall of the can body;

the pushing wheel is controlled to rotate by taking the central shaft of the pushing wheel as a center, and the tank body is driven to rotate by taking the central shaft of the pushing wheel as a center in the rotating process;

the jar body rotates the in-process, the cutting edge of opening a jar sword is impressed the lateral wall of the jar body and is cut and form the cutting cut, when the cutting edge cuts the thickness of predetermineeing to jar side wall, the second locating part of opening a jar sword supports the jar side wall of cutting cut top.

The technical scheme provided by the invention has the following advantages and effects:

this can opener passes through support, push wheel, can opener and arbor and mutually supports, can cut the lateral wall that is close to the top cap to the jar body and form circumscribed incision, and the top cap after the cutting is complete top cap, can cover once more on the jar body. In addition, the can opener can be supported by the first limiting piece so that the can opener is suspended relative to the support, and friction generated by the can opener relative to the support in the rotating process is avoided to form friction force, so that the slipping condition of the push wheel due to overlarge friction force is reduced, the service life of the can opener is prolonged, and noise is reduced; the upper area of the tank body cutting opening is supported by the second limiting part, the thickness of the side wall of the tank body is controlled to insert in the cutting process of the cutting edge, and the excessive insertion of the cutting edge into the tank body is effectively avoided, so that the cutting edge effectively avoids the position of the notch of the tank body to generate an iron wire in the cutting process, the gap range between the cutting edge and the pushing wheel can be enlarged through the second limiting part, and the precision requirement is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles and effects of the invention.

Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.

FIG. 1 is a schematic perspective view of a can opener according to an embodiment of the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of the can opener of FIG. 1;

FIG. 3 is an enlarged schematic view at opener A of FIG. 2;

FIG. 4 is a perspective view of a can opener of the can opener of FIG. 1;

fig. 5 is a schematic perspective view of a knife shaft of the can opener of fig. 1.

Description of reference numerals:

100. a can opener;

1. a support; 2. a push wheel; 3. opening the can; 31. a blade; 32. a first step; 4. a cutter shaft; 41. A second step; 42. an external thread; 5. a rotating support; 51. an inner ring; 52. an outer ring; 6. a connecting shaft; 7. a power mechanism; 71. a drive device; 72. a transmission device; 8. a fixing member; 9. an elastic member;

200. a tank body; 210. and (4) protruding.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of combining the technical solutions of the present invention in a realistic scenario, all technical and scientific terms used herein may also have meanings corresponding to the purpose of achieving the technical solutions of the present invention.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

It should be noted that, as shown in fig. 1, the can opener 100 is capable of cutting the can body 200 to remove the top cover of the can body 200, for example, a metal can or a plastic can may be cut to remove the top cover, and is not particularly limited herein.

The invention provides a can opener 100, as shown in fig. 1 to 5, the can opener 100 comprises a bracket 1, a push wheel 2, a can opener 3 and a cutter shaft 4; the push wheel 2 is rotationally arranged on the support 1, specifically in the embodiment, the push wheel 2 rotates around the center axis, the push wheel 2 is used for abutting against the top of the tank body 200, and the push wheel 2 drives the tank body 200 to rotate along with the tank body in the rotating process.

A first limiting piece is arranged on the outer wall of the cutter shaft 4, the can opener 3 is rotatably sleeved on the cutter shaft 4 and is positioned on the first limiting piece, and a gap is formed between the can opener 3 and the bracket 1; it can be understood that, first locating part can bear the weight of to opening a jar sword 3 so that opening a jar sword 3 relative support 1 suspension, avoids opening a jar sword 3 and producing friction formation frictional force relative support 1 in the rotation process, and opens on the arbor 4 is located to the cover of jar sword 3, can support the rotation of opening a jar sword 3 on the one hand, and on the other hand can restrict opening a jar sword 3 and take place the offset.

The peripheral wall of the can opener 3 is provided with a cutting edge 31, the peripheral wall of the can opener 3 close to the first end of the pushing wheel 2 is also provided with a second limiting piece spaced from the cutting edge 31, and a gap is formed between the cutting edge 31 and the pushing wheel 2; the first end of the can opener 3 is the top end of the can opener 3, and the top end of the can opener 3 is close to the push wheel 2. It can be understood that the gap between the pushing wheel 2 and the blade 31 is used for clamping the position between the top cover and the side wall of the can body 200, wherein the pushing wheel 2 is used for abutting against the top of the can body 200, the can opener 3 abuts against the side wall of the can body 200 close to the top of the can body 200, it should be noted that the can opener 3 abuts against the side wall of the can body 200 adjacent to the top cover, and the side wall protrudes outwards to form a protrusion 210 with a certain thickness. The pushing wheel 2 drives the tank body 200 to rotate along with the rotation in the rotation process, and the tank opening knife 3 cuts the side wall of the tank body 200 in sequence to separate the top cover of the tank body 200 from the tank body 200. In addition, when the pushing wheel 2 abuts against the top of the can body 200, the blade 31 of the can opener 3 is pressed into the side wall of the can body 200, and the second limiting member is used for abutting against the blade 31 to cut the upper area of a cutting opening formed by the can body 200, so as to control the thickness of the blade 31 inserted into the side wall of the can body 200 in the cutting process, and therefore the blade 31 can effectively prevent the can body 200 from generating iron wires in the cutting process.

It will be appreciated that the principle of operation of the can opener 100 is substantially as follows: when the tank body 200 needs to be opened, the pushing wheel 2 of the tank opener 100 abuts against the top cover of the tank body 200, the cutting edge 31 of the tank opening knife 3 abuts against the side wall of the tank body 200, the pushing wheel 2 is rotated, the tank body 200 is pushed by the pushing wheel 2 to rotate around the self central axis, the tank opening knife 3 rotates along with the rotation and presses the side wall of the tank body 200 through the cutting edge 31 on the outer side of the tank body to cut the tank body 200, the second limiting part abuts against the side wall of the tank body 200 at the moment, the cut top cover is a complete top cover, and the tank body 200 can be covered again.

In conclusion, the can opener 100 can cut the side wall of the can body 200 close to the top cover to form an external cut through the mutual matching of the support 1, the push wheel 2, the can opener 3 and the cutter shaft 4, the cut top cover is a complete top cover, and the can body 200 can be covered again. In addition, the can opener 3 can be supported by the first limiting piece so that the can opener 3 is suspended relative to the support 1, and friction generated by friction of the can opener 3 relative to the support 1 in the rotating process is avoided, so that the slipping condition of the push wheel 2 due to overlarge friction is reduced, the service life of the can opener 100 is prolonged, and noise is reduced; support the top region of jar body 200 cutting opening through second locating part, can control the thickness that the cutting edge 31 inserted jar body 200 lateral wall in cutting process, effectively avoid the cutting edge 31 excessively to insert jar body 200 to make cutting edge 31 effectively avoid jar body 200 incision position to produce the iron wire in cutting process, and can increase the clearance range between this cutting edge 31 and the pushing wheel 2 through this second locating part, reduce the required precision.

In some embodiments, as shown in fig. 3 and 4, a first step 32 is formed between the first end of the can opener 3 and the blade 31, and the radial length of the first end of the can opener 3 is smaller than that of the blade 31, and the first step 32 is a second stopper. As can be understood, by forming the inwardly retracted first step 32 above the cutting edge 31 of the can opener 3, when the cutting edge 31 of the can opener 3 is pressed into the side wall of the can 200 to form a cutting opening, the first step 32 can abut against the cutting edge 31 to cut the upper region of the cutting opening formed by the can 200, so as to control the thickness of the cutting edge 31 inserted into the side wall of the can 200 during the cutting process, thereby effectively preventing the can 200 from wire-cutting during the cutting process by the cutting edge 31.

In some embodiments, as shown in fig. 4, in order to make the first step 32 abut against the upper region of the cutting opening on the one hand and avoid the first step 32 from obstructing the cutting edge 31 of the can opener 3 from cutting on the other hand, and to precisely control the thickness of the cutting edge 31 inserted into the sidewall of the can body 200 during the cutting process, the radial difference between the radial length of the first end of the can opener 3 and the radial length of the cutting edge 31 is controlled to be in the range of 0.05mm to 0.5mm, specifically, the radial difference may be 0.05mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, etc., and is not particularly limited herein.

In some embodiments, the can opener 3 is a solid of revolution structure, the pushing wheel 2 is transversely disposed in the bracket 1, the can opener 3 is vertically disposed in the bracket 1, and the can opener 3 is obliquely disposed relative to the central axis of the bracket 1. Specifically, in this embodiment, the distance from the top end of the knife shaft 4 to the central axis of the support 1 is smaller than the distance from the bottom end of the knife shaft 4 to the central axis of the support 1, so that the knife shaft 4 is inclined relative to the central axis of the support 1, and the cutting edge 31 of the can opener 3 sleeved on the rotary support 5 forms a certain angle, it should be noted that, when the can opener 100 cuts the can body 200, one end of the can opener 100 close to the push wheel 2 inclines towards the can body 200, at this time, the knife shaft 4 inclines relative to the support 1 and can be tightly abutted to the side wall of the can body 200, so that the can body 200 can be cut quickly, the cutting effect and efficiency are further improved, and the can opener 3 forms a revolving body structure, and can cut the can body 200 uniformly, thereby improving the cutting effect and effectively avoiding uneven cutting. Further, this pushing wheel 2 also is the revolution solid structure to can evenly promote jar body 200 and rotate, improve the cutting effect.

In some embodiments, as shown in fig. 3, a second step 41 is formed on the outer wall of the knife shaft 4 in the radial direction of the knife shaft 4, and the second step 41 is a first stopper. It can be understood that, by the can opener 3 being rotatably disposed on the knife shaft 4 and located on the second step 41, the second step 41 can bear the can opener 3, so that the can opener 3 is installed at a preset position, and therefore, a gap can exist between the can opener 3 and the bracket 1.

In some embodiments, as shown in fig. 2, the can opener 100 further includes a rotating support 5, the rotating support 5 includes an inner ring 51 and an outer ring 52 sleeved on the inner ring 51 and capable of rotating relatively, the inner ring 51 is sleeved on the knife shaft and located on the first limiting member, it should be noted that the inner ring 51 is fixedly connected with the knife shaft 4, so that the outer ring 52 of the rotating support 5 can rotate relative to the inner ring 51, and the can opener 3 is sleeved on the outer ring 52. As can be understood, the compactness of the overall structure can be improved by sequentially sleeving the cutter shaft 4, the inner ring 51, the outer ring 52 and the can opener 3. In addition, through the outer ring 52 of the rotary support member 5 and the can opener 3, the inner ring 51 of the rotary support member 5 is sleeved on the cutter shaft 4 and is located on the first limiting member, so that the first limiting member can bear the weight of the rotary support member 5, and therefore the rotary support member 5 can serve as a bearing structure to support the can opener 3 and can also serve as a rotary structure to support the rotation of the can opener 3, the sliding friction in the rotation process of the can opener 3 is changed into the rotating friction, the friction force of the rotation of the can opener 3 can be further reduced, the situation that the pushing wheel 2 slips due to the fact that the friction force is too large is further reduced, the service life of the can opener 100 is further prolonged, and the noise is reduced.

In some embodiments, the rotational support 5 comprises a ball bearing. Understandably, the ball bearing has excellent rotation precision, can ensure smooth rotation of the can opener 3 and effectively reduce friction, and can bear larger axial and radial loads to stably support the can opener 3. It should be noted that, in other embodiments, the rotating support 5 may be other bearings or devices capable of carrying the can opener 3 and supporting the can opener 3 to rotate, and is not limited herein.

In some embodiments, as shown in fig. 2, the can opener 100 further comprises a connecting shaft 6 connected with the push wheel 2; an accommodating cavity which accommodates the connecting shaft 6 and has a stroke space is formed in the bracket 1. The can opener 100 further comprises an elastic piece 9 accommodated in the accommodating cavity, and the elastic piece 9 is sleeved on the connecting shaft 6. It can be understood that, this holding chamber holds connecting axle 6, and the pushing wheel 2 that is connected with this connecting axle 6 is arranged in can opener 100 outward to can support and press jar body 200, wherein have the stroke space in the holding chamber, can make connecting axle 6 have the buffering space through the effect of elastic component 9, so as to make pushing wheel 2 closely support and press in the top of jar body 200.

In some embodiments, as shown in fig. 2, the can opener 100 further comprises a power mechanism 7 disposed on the bracket 1, and an output end of the power mechanism 7 is connected with the pushing wheel 2. It can be understood that, through power unit 7 automatic drive push wheel 2 rotation, can ware 100 is opened to this can automatically, does not need the manual operation of rotating push wheel 2 and can opens the lid and handle to improve the automaticity of this can ware 100, further improve and open a jar efficiency and convenience.

In some embodiments, the power mechanism 7 comprises a driving device 71 and a transmission device 72, wherein an output end of the driving device 71 is connected with an input end of the transmission device 72, and an output end of the transmission device 72 is connected with the pushing wheel 2. In this embodiment, the driving device 71 may be a rotating motor. Of course, in other embodiments, the driving device 71 may be other devices capable of driving the pushing wheel 2 to rotate, and is not limited herein. It can be understood that, by driving the transmission device 72 to rotate through the driving device 71, the transmission device 72 drives the pushing wheel 2 to rotate, so as to improve the structural compactness, so that the driving device 71 which is not coaxial with the pushing wheel 2 can smoothly drive the pushing wheel 2 to rotate.

In some embodiments, as shown in FIG. 2, the transmission 72 includes a driving wheel and a driven wheel in meshing transmission with the driving wheel; the input end of the driving wheel is connected with the output end of the driving device 71, and the output end of the driven wheel is connected with the pushing wheel 2. Understandably, the driving wheel and the driven wheel are matched to form a gear transmission device, and the driving force of the driving device 71 can be transmitted to the pushing wheel 2, so that the pushing wheel 2 is driven to rotate stably, and the gear transmission device has the characteristics of compact structure, high working stability and high transmission efficiency.

In some embodiments, a push switch (not shown) is disposed on the bracket 1, the push switch is electrically connected to the driving device 71, the push switch is used for controlling the rotation state of the driving device 71, and when a can opening operation is required, the can opener 100 can be in a working state by pressing the push switch, which is simple and convenient to operate.

In some embodiments, as shown in fig. 5, the outer wall of the arbor 4 is provided with an external thread 42, the bracket 1 is provided with an internal thread, and the arbor 4 is screwed into the bracket 1 by matching the external thread 42 and the internal thread. Understandably, the cutter shaft 4 is in threaded connection with the bracket 1, and the position of the cutter shaft 4 in the bracket 1 can be adjusted through actual needs in the assembling process, so that the gap between the can opener 3 and the pushing wheel 2 can be adjusted, and the can opener can adapt to cans 200 with different specifications and shapes.

In some embodiments, as shown in fig. 2, the can opener 100 further includes a fixing member 8 disposed on the bracket 1, the fixing member 8 is disposed adjacent to the pushing wheel 2, and the fixing member 8 is configured to be pushed against the top cover of the can body 200 when the pushing wheel 2 is pushed against the top cover of the can body 200, so as to effectively prevent the can body 200 from being displaced during the rotation process to cause the cutting position to be displaced. Specifically, in this embodiment, the fixing member 8 and the pushing wheel 2 are located at the same position of the bracket 1, and the fixing member 8 is in a ring structure, and the pushing wheel 2 is located in the ring structure.

In some embodiments, as shown in fig. 2, the support 1 has the above-mentioned accommodating cavity and an opening communicated with the accommodating cavity, it should be noted that, in this embodiment, the opening is opened in a side wall of the support 1, the knife shaft 4 is transversely accommodated in the accommodating cavity, the can opener 3 is vertically accommodated in the accommodating cavity, and a part of the structure of the knife edge 31 of the can opener 3 is externally disposed in the opening 11, the above-mentioned gap exists between the can opener 3 and the cavity wall of the accommodating cavity, so as to avoid the contact between the can opener 3 and the cavity wall of the accommodating cavity, thereby avoiding the relative friction between the can opener 3 and the support 1 during the cutting process, and facilitating the knife edge of the can opener 3 to be pressed into the side wall of the can body 200 to cut the can body 200.

In some embodiments, the peripheral wall of the can opener 3 close to the second end is further provided with a third step extending along the radial direction of the can opener 3, the third step is spaced from the cutting edge 31, and the radial length of the third step is greater than the radial length of the cutting edge 31, when the cutting edge 31 of the can opener 3 cuts the side wall of the can body 200, the can opener 3 is disposed obliquely relative to the can body 200, and when the radial length of the third step is greater than the radial length of the cutting edge 31, the third step can abut against the side wall of the can body 200 when the cutting edge 31 abuts against the side wall of the can body 200, so as to form a fulcrum when the cutting edge 31 cuts.

Based on the can opener 100, the invention also provides a can opener 3, wherein the peripheral wall of the can opener 3 is provided with a cutting edge 31; the peripheral wall of the can opener 3 is further provided with a first limiting piece, and the first limiting piece and the cutting edge 31 are arranged at intervals.

In summary, the can opener 3 can cut the can body 200 through the blade 31, while the blade 31 of the can opener 3 presses into the side wall of the can body 200 to form a cutting opening, the first limiting member abuts against the upper area of the cutting opening formed by the blade 31 to cut the can body 200, the thickness of the blade 31 inserted into the side wall of the can body 200 in the cutting process is controlled, and the blade 31 is effectively prevented from being excessively inserted into the can body 200, so that the blade 31 is enabled to effectively prevent the can body 200 from generating iron wires in the cutting process, the gap range between the blade 31 and the push wheel 2 can be enlarged through the first limiting member, and the precision requirement is lowered.

The present invention also provides a method of controlling the can opener 100, the method of controlling the can opener 100 comprising the steps of:

controlling the can opener 100 to move to a preset position of the can body 200, wherein the push wheel 2 props against the top of the can body 200 at the moment, and the can opener 3 props against the side wall of the can body 200;

the pushing wheel 2 is controlled to rotate by taking the central shaft of the pushing wheel as the center, and the tank body 200 is driven to rotate by taking the central shaft of the pushing wheel 2 as the center in the rotating process;

in the rotation process of the tank body 200, the cutting edge 31 of the tank opener 3 is pressed into the side wall of the tank body 200 to cut to form a cutting opening, and when the cutting edge 31 cuts to the preset thickness of the side wall of the tank body 200, the second limiting part of the tank opener 3 abuts against the side wall of the tank body 200 above the cutting opening.

In summary, the control method of the can opener 100 can cut the side wall of the can body 200 close to the top cover to form an external cutting, and the cut top cover is a complete top cover and can be covered on the can body 200 again. In addition, the first limiting piece can bear the can opener 3 so that the can opener 3 is suspended relative to the support 1, and friction generated by friction of the can opener 3 relative to the support 1 in the rotating process is avoided, so that the slipping condition of the push wheel 2 due to overlarge friction is reduced, the service life of the can opener 100 is prolonged, and noise is reduced; the tank body 200 is cut through the cutting edge 31, when the cutting edge 31 of the tank opening knife 3 is pressed into the side wall of the tank body 200 to form a cutting opening, the second limiting piece abuts against the upper area of the cutting opening of the tank body 200, the thickness of the side wall of the tank body 200 is controlled to be inserted into the cutting edge 31 in the cutting process, the excessive insertion of the cutting edge 31 into the tank body 200 is effectively avoided, the cutting edge 31 is enabled to effectively avoid the generation of iron wires at the position of the cut of the tank body 200 in the cutting process, the gap range between the cutting edge 31 and the pushing wheel 2 can be enlarged through the second limiting piece, and the precision requirement is lowered.

When the drawing description is quoted, the new characteristics are explained; in order to avoid that repeated reference to the drawings results in an insufficiently concise description, the drawings are not referred to one by one in the case of clear description of the already described features.

The above embodiments are provided to illustrate, reproduce and deduce the technical solutions of the present invention, and to fully describe the technical solutions, the objects and the effects of the present invention, so as to make the public more thoroughly and comprehensively understand the disclosure of the present invention, and not to limit the protection scope of the present invention.

The above examples are not intended to be exhaustive of the invention and there may be many other embodiments not listed. Any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.