Automatic can opener

Abstract

The invention discloses an automatic can opener, belonging to the technical field of can openers. The automatic can opener comprises: a housing, a driving mechanism and a transmission mechanism arranged in the housing at a first level; a main shaft, a driving wheel is arranged at one end of the main shaft, and a first cutting wheel is arranged at the other end of the main shaft; an eccentric wheel, the eccentric wheel is sleeved on the main shaft, the periphery of the eccentric wheel has a gear segment, and the gear segment is provided with a first elastic member; an idler wheel, the driving wheel is connected to the eccentric wheel through the idler wheel, the eccentric wheel is slipped through the idler wheel, the running speed of the idler wheel is much greater than the running speed of the driving wheel, and a rigid gap is maintained between the first cutting wheel and the second cutting wheel; a slide plate, the slide plate is connected to the eccentric wheel through the transmission, a second cutting wheel is arranged on one side of the slide plate outside the housing, and the eccentric wheel is used to drive the second cutting wheel to approach and move away from the first cutting wheel to realize can opening and retracting. The invention can make the first cutting wheel and the second cutting wheel keep clamping the edge of the can, and improve the long-term stability and reliability of the can opening quality.

Description

Technical Field

[0001] The present invention relates to the technical field of can openers, in particular to an automatic can opener. Background Art

[0002] With the continuous maturity and advancement of the application technology of dry batteries and low-voltage, low-power rechargeable batteries, electric can openers have transformed from their original structure that relied on high power to a new structure that uses low-voltage power supply, and have significant advantages such as smaller space, lower cost, and higher energy efficiency.

[0003] In the prior art, low-voltage electric can openers can open cans and retract the knife normally. However, it is difficult to ensure a rigid gap between the can opening cutting wheel and the cutting knife during the cutting process, which increases the gap between the cutting knife and the cutting wheel, thereby causing problems such as cutting failure, can jamming, iron filings generated by incomplete cutting entering the can and contaminating food, or idling and slipping, making the can opener function ineffective and unable to successfully complete the cutting task, thereby affecting the user experience. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an automatic can opener that can maintain a rigid gap between the can opening cutting wheel and the cutting knife to ensure the long-term stability and reliability of the can opening quality.

[0005] The automatic can opener according to some embodiments of the present invention comprises: a housing; a driving mechanism, which is arranged in the housing; a transmission mechanism, which is arranged in the housing; a main shaft, which is rotatably arranged on the housing, a driving wheel is arranged at one end of the main shaft located in the housing, a first cutting wheel is arranged at one end of the main shaft located outside the housing, and the driving wheel is connected to the driving mechanism through the transmission mechanism; an eccentric wheel, which is sleeved on the main shaft, a second cutting wheel is slidably arranged on the housing, and the eccentric wheel is used to drive the second cutting wheel to approach and move away from the first cutting wheel, the periphery of the eccentric wheel has a gear segment, one end of the gear segment is provided with a first elastic member, and the end of the first elastic member opposite to the gear segment can be against the housing; an idler wheel, which is rotatably arranged in the housing, and the idler wheel includes a driving gear and a driven gear coaxially arranged on the driving gear, the driving gear is connected to the driving wheel through the idler wheel, and the driven gear is connected to the eccentric wheel through the idler wheel. The diameter of the driving gear is smaller than the diameter of the driven gear, so that the running speed of the driving wheel is smaller than the slipping speed of the eccentric wheel.

[0006] The automatic can opener according to the embodiment of the present invention has at least the following beneficial effects: the driving mechanism drives the driving wheel to rotate through the transmission mechanism, and the driving wheel drives the idle wheel to operate, so as to drive the idle wheel to drive the eccentric wheel to rotate synchronously, and the eccentric wheel drives the second cutting wheel to move in the direction close to the first cutting wheel under the drive of the idle wheel. In the can opening and cutting state, the end of the gear segment away from the first elastic member abuts against the idle wheel. Since the teeth of the gear segment away from the end of the first elastic member cannot mesh with the idle wheel to rotate, the idle wheel and the eccentric wheel slip, and the eccentric wheel remains stationary under the action of the first elastic member and the shell, and the first cutting wheel and the second cutting wheel remain clamped on the edge of the can. In the retracted state, the first elastic member releases the elastic force and drives the eccentric wheel to reverse, so that the second cutting wheel is away from the first cutting wheel. Thus, through the coordinated operation of the driving wheel, the eccentric wheel and the idler wheel, the first cutting wheel and the second cutting wheel can complete automatic advance and retract, and the driving wheel transmits the operating speed to the eccentric wheel by driving the driving gear and the driven gear of different diameters, so that the slip speed of the eccentric wheel is greater than the rotation speed of the driving wheel, so as to ensure that the first cutting wheel and the second cutting wheel can maintain a stable rigid gap during the cutting process, so that the first cutting wheel and the second cutting wheel can maintain a clamp on the edge of the can, thereby completing the cutting action and improving the stability and reliability of can opening and cutting.

[0007] According to some embodiments of the present invention, the operating speed of the first cutting wheel ranges from 10 rpm to 25 rpm, and the operating speed of the idler wheel is greater than 25 rpm.

[0008] According to some embodiments of the present invention, a slide plate is further included, which is slidably arranged on the housing, the slide plate is transmission-connected to the eccentric wheel, and the second cutting wheel is arranged on a side of the slide plate outside the housing. According to some embodiments of the present invention, the eccentric wheel is connected to the slide plate through a double ring plate, and the double ring plate converts the rotational motion of the eccentric wheel into the linear motion of the slide plate.

[0009] According to some embodiments of the present invention, the transmission mechanism is a reduction gear set.

[0010] According to some embodiments of the present invention, the reduction gear set includes a primary gear, a secondary gear and a tertiary gear that are meshed in sequence, the primary gear is transmission connected to the driving mechanism, and the tertiary gear is transmission connected to the driving wheel.

[0011] According to some embodiments of the present invention, a second elastic member is provided on the main shaft, the second elastic member is located between the driving wheel and the main shaft, and the second elastic member is used to fix the position of the driving wheel on the main shaft.

[0012] According to some embodiments of the present invention, the first elastic member is a compression spring.

[0013] According to some embodiments of the present invention, the axial direction of the compression spring is tangent to the edge of the eccentric wheel.

[0014] According to some embodiments of the present invention, the second cutting wheel is arranged on the slide plate at an angle.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 is a schematic structural diagram of an automatic can opener according to an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure inside the housing in the middle retracted state;

[0019] Figure 3 yes Figure 2 Schematic diagram of the structure of the slide plate in the middle retracting state;

[0020] Figure 4 yes Figure 1 Schematic diagram of the structure inside the shell in the middle cutting state;

[0021] Figure 5 yes Figure 4 Schematic diagram of the structure of the slide plate in the middle cutting state;

[0022] Figure 6 yes Figure 1 Schematic cross-sectional view of ;

[0023] Figure 7 yes Figure 1 Schematic diagram of the structure of the middle slide plate and the double ring plate;

[0024] Figure 8 yes Figure 1 Schematic diagram of the structure of the central spindle, eccentric wheel, double ring plate and first cutting wheel.

[0025] Reference numerals:

[0026] Housing 100;

[0027] Driving mechanism 200;

[0028] Transmission mechanism 300, primary gear 310, secondary gear 320, tertiary gear 330;

[0029] Spindle 400, driving wheel 410, first cutting wheel 420, second elastic member 430;

[0030] Eccentric wheel 500, gear segment 510, first elastic member 511, second cutting wheel 520;

[0031] Idler gear 600, driving gear 610, driven gear 620;

[0032] Slide plate 700 , double ring plate 710 . DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] refer to Figures 1 to 8 An automatic can opener according to an embodiment of the present invention is described.

[0038] like Figure 1 and Figure 8As shown, the automatic can opener according to the embodiment of the present invention includes a housing 100; a driving mechanism 200, which is arranged in the housing 100; a transmission mechanism 300, which is arranged in the housing 100; a main shaft 400, which is rotatably arranged on the housing 100, and a driving wheel 410 is arranged at one end of the main shaft 400 located in the housing 100, and a first cutting wheel 420 is arranged at one end of the main shaft 400 located outside the housing 100, and the driving wheel 410 is connected to the driving mechanism 200 through the transmission mechanism 300; an eccentric wheel 500, which is sleeved on the main shaft 400, and a second cutting wheel 520 is slidably arranged on the housing 100, and the eccentric wheel 500 is used to drive the second cutting wheel 520 to approach and move away from the first cutting wheel 520. A cutting wheel 420, the periphery of the eccentric wheel 500 has a gear segment 510, one end of the gear segment 510 is provided with a first elastic member 511, and the end of the first elastic member 511 opposite to the gear segment 510 can be against the housing 100; an idler wheel 600, the idler wheel 600 is rotatably arranged in the housing 100, the idler wheel 600 includes a driving gear 610 and a driven gear 620 coaxially arranged on the driving gear 610, the driving gear 610 is transmission-connected with the driving wheel 410, the driving wheel 410 drives the eccentric wheel 500 to rotate through the idler wheel 600, the driven gear 620 is connected with the eccentric wheel 500, the diameter of the driving gear 610 is smaller than the diameter of the driven gear 620, so that the operating speed of the driving wheel 410 is lower than the slipping speed of the eccentric wheel 500.

[0039] like Figure 1 As shown, a driving mechanism 200 and a transmission mechanism 300 are arranged in the housing 100, and a main shaft 400 is arranged in the housing 100 in the up-down direction, wherein a driving wheel 410 and a first cutting wheel 420 are sleeved on the main shaft 400, the driving wheel 410 is located in the housing 100, and the first cutting wheel 420 is located outside the housing 100, and the driving mechanism 200 drives the driving wheel 410 to rotate through the transmission mechanism 300. The eccentric wheel 500 is sleeved on the main shaft 400, and the periphery of the eccentric wheel 500 has a gear segment 510, as shown in FIG. Figure 2 and Figure 4 As shown, a first elastic member 511 is provided at the clockwise downstream end of the gear tooth segment 510. The idler wheel 600 is rotatably disposed in the housing 100, and the idler wheel 600 is transmission-connected to the driving wheel 410. The slide plate 700 is slidably disposed at the lower end of the housing 100, and the slide plate 700 is transmission-connected to the eccentric wheel 500. The slide plate 700 is provided with a second cutting wheel 520, and the cutting wheel is located outside the housing 100. The second cutting wheel 520 corresponds to the first cutting wheel 420. When the eccentric wheel 500 rotates, the second cutting wheel 520 can be driven to approach and move away from the first cutting wheel 420.

[0040] In the cutting state, the driving mechanism 200 drives the driving wheel 410 to rotate through the transmission mechanism 300, and the driving wheel 410 drives the idler wheel 600 to operate, so as to drive the idler wheel 600 to drive the eccentric wheel 500 to rotate synchronously. The eccentric wheel 500 drives the second cutting wheel 520 to move toward the direction close to the first cutting wheel 420 under the drive of the idler wheel 600. In the can opening and cutting state, the end of the gear segment 510 away from the first elastic member 511 abuts against the idler wheel 600. Since the teeth of the end of the gear segment 510 away from the first elastic member 511 cannot mesh with the idler wheel 600 for rotation, the idler wheel 600 and the eccentric wheel 500 slip, and the eccentric wheel 500 remains stationary under the abutment of the first elastic member 511 and the housing 100, and the first cutting wheel 420 and the second cutting wheel 520 remain clamped on the edge of the can. In the retracting state, the first elastic member 511 on the eccentric wheel 500 releases the elastic force, the eccentric wheel 500 rotates counterclockwise and meshes with the idler wheel 600 to rotate, and the second cutting wheel 520 moves leftward under the drive of the eccentric wheel 500 to open the gap with the first cutting wheel 420, thereby completing the retracting action.

[0041] Thus, through the coordinated operation of the driving wheel 410, the eccentric wheel 500 and the idler wheel 600, the first cutting wheel 420 and the second cutting wheel 520 can complete automatic feeding and retracting. The driving wheel 410 transmits the operating speed to the eccentric wheel 500 by driving the driving gear 610 and the driven gear 620 of different diameters, so that the slipping speed of the eccentric wheel 500 is greater than the rotation speed of the driving wheel 410, so as to ensure that the first cutting wheel 420 and the second cutting wheel 520 can maintain a stable rigid gap during the cutting process, so that the first cutting wheel 420 and the second cutting wheel 520 can maintain a clamp on the edge of the can, thereby completing the cutting action and improving the stability and reliability of can opening and cutting.

[0042] It should be noted that in a gear transmission system, if the teeth of two gears are not completely and accurately engaged, or are affected by external torque, relative sliding may occur between the gears. This phenomenon is called gear slippage, and the gear slippage speed refers to the speed at which the gears slide relative to each other due to friction. In this specific embodiment, the gear tooth segment 510 of the eccentric wheel 500 slips with the idler wheel 600. Since the diameter of the driving gear 610 is smaller than the diameter of the driven gear 620, when the driving wheel 410 drives the eccentric wheel 500 to rotate through the idler wheel 600, the operating speed of the driving wheel 410 is lower than the slippage speed of the eccentric wheel 500.

[0043] In this specific embodiment, Figure 1As shown, the eccentric wheel 500 is located at the lower side of the driving wheel 410, and the driving gear 610 is coaxially arranged at the upper end of the driven gear 620, wherein the diameter of the driving wheel 410 is larger than the diameter of the eccentric wheel 500, and the diameter of the driving gear 610 is smaller than the diameter of the driven gear 620, the driving gear 610 is meshed with the driving wheel 410, and the driven gear 620 can be meshed with the gear segment 510 of the eccentric wheel 500, then in the can opening and cutting state, the transmission mechanism 300 drives the driving wheel 410 to rotate clockwise, and the driving wheel 410 is meshed with the driving gear 610 and drives the driving gear 610 to rotate counterclockwise, At the same time, the driven gear 620 rotates synchronously with the driving gear 610 to drive the eccentric wheel 500 to rotate clockwise. The eccentric wheel 500 drives the second cutting wheel 520 to approach the first cutting wheel 420 under the drive of the idler wheel 600. When the eccentric wheel 500 rotates until the end of the gear segment 510 abuts against the driven gear 620, the driven gear 620 and the eccentric wheel 500 slip. At this time, the eccentric wheel 500 remains stationary under the abutment of the first elastic member 511 and the shell 100. The second cutting wheel 520 and the first cutting wheel 420 form a stable rigid gap and are clamped on the edge of the can in a clamping shape.

[0044] In this specific embodiment, the driving mechanism 200 is an electric motor.

[0045] In some specific embodiments of the present invention, the operating speed of the first cutting wheel 420 ranges from 10 rpm to 25 rpm, and the operating speed of the idler wheel 600 is greater than 25 rpm.

[0046] It should be noted that, in the case of can opening and cutting, the slippage of the idler wheel 600 will cause the transmission ratio between the idler wheel 600 and the eccentric wheel 500 to be higher than that of the first cutting wheel 420, so that the slippage speed of the eccentric wheel 500 is higher than the running speed of the cutting wheel. In this specific embodiment, the running speed of the idler wheel 600 is 48 rpm, and the running speed of the first cutting wheel 420 is 17 rpm, so that the running speed of the idler wheel 600 is higher than the running speed of the first cutting wheel 420. Under such a speed difference, there is almost no chance for the first cutting wheel 420 and the second cutting wheel 520 to open the cutting gap, thereby ensuring that the first cutting wheel 420 and the second cutting wheel 520 can maintain a rigid gap during cutting.

[0047] In some specific embodiments of the present invention, the eccentric wheel 500 and the slide plate 700 are connected via a double-ring plate 710 , and the double-ring plate 710 converts the rotational motion of the eccentric wheel 500 into the linear motion of the slide plate 700 .

[0048] like Figures 6 to 8As shown, the double ring plate 710 has two through holes arranged in the up-down direction, and the eccentric wheel 500 is connected to the slide plate 700 through the double ring plate 710. Specifically, one end of the double ring plate 710 is sleeved on the slide plate 700, that is, one of the through holes of the double ring plate 710 is sleeved on the cylindrical protrusion corresponding to the slide plate 700, so that the double ring plate 710 can rotate relative to the slide plate 700, and the other end of the double ring plate 710 is sleeved on the eccentric wheel 500, that is, the other through hole of the double ring plate 710 is sleeved on the lower end of the eccentric wheel 500. The slide plate 700 can only move linearly in the left and right directions under the limit of the housing 100. Therefore, the double ring plate 710 converts the rotation of the eccentric wheel 500 into the left and right movement of the slide plate 700, so that the second cutting wheel 520 can move linearly in the left and right directions to achieve approaching and moving away from the first cutting wheel 420.

[0049] Furthermore, the second cutting wheel 520 is tilted on the slide 700, whereby the forward and reverse rotation of the driving mechanism 200 can drive the second cutting wheel 520 to approach and move away from the first cutting wheel 420 via the eccentric wheel 500, the double ring plate 710 and the slide 700, and the tilted first cutting wheel 420 can reduce the resistance during cutting, making it easier for the blade to penetrate the can cover, thereby reducing the risk of the can cover being stuck or jammed, and avoiding jamming during the cutting process. At the same time, it can better guide the can cover, making it easier to be accurately cut during the cutting process, thereby improving the cutting efficiency.

[0050] In some specific embodiments of the present invention, a blocking structure is provided on the housing 100 , and the blocking structure is located on one side of the eccentric wheel 500 . The blocking structure abuts against the first elastic member 511 , so that the eccentric wheel 500 remains stationary during the slipping process with the idler wheel 600 .

[0051] like Figure 4 As shown, a blocking structure is provided on the shell 100, and the blocking structure is located at the rear side of the eccentric wheel 500. In the can opening and cutting state, the idler wheel 600 drives the eccentric wheel 500 to rotate clockwise. Under the drive of the idler wheel 600, the first elastic member 511 at the end of the gear segment 510 of the eccentric wheel 500 rotates to abut against the blocking structure. At the same time, the eccentric wheel 500 and the idler wheel 600 slip. Since the slip speed of the idler wheel 600 is much greater than the operating speed of the driving wheel 410, a stable rigid gap is ensured between the first cutting wheel 420 and the second cutting wheel 520.

[0052] In some specific embodiments of the present invention, the first elastic member 511 is a compression spring.

[0053] In some specific embodiments of the present invention, the axial direction of the compression spring is tangent to the edge of the eccentric wheel 500 .

[0054] like Figure 2 and Figure 4As shown, the first elastic member 511 is a compression spring tangential to the edge of the eccentric wheel 500 in the axial direction. In the advance state, the idler wheel 600 drives the eccentric wheel 500 to rotate clockwise, so that the compression spring can directly press against the blocking structure along the rotation path of the outer edge of the eccentric wheel 500 until the idler wheel 600 and the eccentric wheel 500 slip. In the retract state, the compression spring releases its elastic force, the eccentric wheel 500 rotates counterclockwise and meshes with the idler wheel 600. The second cutting wheel 520, driven by the eccentric wheel 500, opens a gap with the first cutting wheel 420, thereby completing the retract action. It should be noted that the eccentric wheel 500 will automatically stop when it rotates counterclockwise to a specified position. Specifically, the position of the eccentric wheel 500 can be detected by a limit switch installed in the housing 100, and a stop signal is triggered when the specified position is reached, causing the eccentric wheel 500 to stop rotating. Alternatively, a position sensor is used to monitor the rotational position of the eccentric wheel 500. When the preset position is reached, the sensor sends a signal to the control system to instruct the eccentric wheel 500 to stop rotating.

[0055] In some specific embodiments of the present invention, the transmission mechanism 300 is a reduction gear set.

[0056] In some specific embodiments of the present invention, the reduction gear set includes a primary gear 310, a secondary gear 320 and a tertiary gear 330 meshed in sequence, the primary gear 310 is transmission connected to the driving mechanism 200, and the tertiary gear 330 is transmission connected to the driving wheel 410.

[0057] like Figure 1 As shown, a driving mechanism 200 is provided at the rear end of the shell 100. The driving mechanism 200 is an electric motor. The output shaft of the driving mechanism 200 is transmission-connected with the reduction gear set. In this specific embodiment, the pinion, the first-stage gear 310, the second-stage gear 320 and the third-stage gear 330 on the output shaft of the electric motor are meshed in sequence, and the third-stage gear 330 is meshed with the driving wheel 410 sleeved on the main shaft 400. As a result, the electric motor finally drives the main shaft 400 to rotate, so as to drive the main shaft 400 to drive the first cutting wheel 420 to rotate, thereby realizing a low-speed and high-torque rotation action that meets the cutting conditions of the can opener.

[0058] In some specific embodiments of the present invention, a second elastic member 430 is disposed on the main shaft 400 . The second elastic member 430 is located between the driving wheel 410 and the main shaft 400 . The second elastic member 430 is used to fix the position of the driving wheel 410 on the main shaft 400 .

[0059] like Figure 1As shown, in this specific embodiment, the second elastic member 430 is a retaining spring, and a limiting groove corresponding to the retaining spring is opened on the main shaft 400. The retaining spring is embedded in the limiting groove, and its lower end abuts against the driving wheel 410, thereby fixing the driving wheel 410 at a specific position on the main shaft 400 to prevent the driving wheel 410 from shifting or loosening during operation, and plays a role of buffering and shock absorption, reducing instability and loss caused by vibration.

[0060] The following is a specific example of the use of the automatic can opener to illustrate the can opening and knife retracting process:

[0061] like Figures 4 to 5 As shown, the edge of the can is placed between the first cutting wheel 420 and the second cutting wheel 520, and the can opening function is started. The electric motor rotates forward, and after the first gear 310, the second gear 320 and the third gear 330 are decelerated and the torque is increased, the driving wheel 410 is driven to rotate clockwise. The driving wheel 410 drives the first cutting wheel 420 to rotate through the main shaft 400, and the driving wheel 410 is meshed with the driving gear 610 of the idler wheel 600. The driving gear 610 and the driven gear 620 rotate synchronously, so that the eccentric wheel 500 and the driving wheel 410 rotate in the clockwise direction together. The eccentric wheel 500 drives the slide plate 700 to move backward through the double ring plate 710, so that the second cutting wheel 520 on the slide plate 700 approaches the first cutting wheel 420 to the right, until the second cutting wheel 520 and the first cutting wheel 420 are clamped on the edge of the can. At this time, the eccentric wheel 5 00, the compression spring at the clockwise downstream end of the gear segment 510 is against the blocking structure on the shell 100, and the automatic can opener enters the cutting state. In this state, the eccentric wheel 500 remains stationary, and the clockwise upstream end of the gear segment 510 slips with the driven gear 620. Since the operating speed of the idler wheel 600 is 48rpm and the operating speed of the first cutting wheel 420 is 17rpm, the operating speed of the idler wheel 600 is much greater than the operating speed of the first cutting wheel 420, the clockwise upstream end of the gear segment 510 slips with the driven gear 620, and a stable rigid gap is formed between the second cutting wheel 520 and the first cutting wheel 420 to maintain the clamped state on the edge of the can. At the same time, the first cutting wheel 420 is driven to rotate by the main shaft 400, and the first cutting wheel 420 and the second cutting wheel 520 cooperate with each other to complete the can cutting action.

[0062] like Figures 2 to 3As shown, when the cutting is completed, the motor reverses, and the compression spring releases its elastic force, pushing the eccentric wheel 500 to rotate counterclockwise, and the gear segment 510 on the eccentric wheel 500 meshes and rotates with the driven gear 620. Under the rotation of the driving mechanism, the eccentric wheel 500 rotates counterclockwise, and the eccentric wheel 500 reverses and drives the slide plate 700 to move to the left through the double ring plate 710, so that the second cutting wheel 520 is away from the first cutting wheel 420, and then the automatic can opener is removed from the edge of the can to complete the retracting action.

[0063] Therefore, under the drive of the motor, the driving wheel 410 is driven to rotate through the step-by-step transmission of the first-stage gear 310, the second-stage gear 320 and the third-stage gear 330, and the driving wheel 410 meshes with the driving gear 610 and drives the driven gear 620 to operate, so as to drive the driven gear 620 to drive the eccentric wheel 500 to rotate synchronously, and the eccentric wheel 500 pulls the slide plate 700 to move the second cutting wheel 520 toward the direction close to the first cutting wheel 420. When the eccentric wheel 500 rotates until the end of the gear tooth segment 510 abuts against the driven gear 620, the driven gear 620 and the eccentric wheel 500 slip, and the eccentric wheel 500 rotates in the first An elastic member 511 remains stationary under the action of the shell 100, and the first cutting wheel 420 and the second cutting wheel 520 remain clamped on the edge of the can. Therefore, during the cutting process, through the coordinated operation of the eccentric wheel 500, the idler wheel 600 and the slide plate 700, the driving wheel 410 can drive the first cutting wheel 420 and the second cutting wheel 520 to complete the action of advancing and retracting the knife, and at the same time, a stable rigid gap can be formed between the first cutting wheel 420 and the second cutting wheel 520, ensuring that the edge of the can can be effectively clamped, thereby completing the cutting action and improving the stability and reliability of can opening and cutting.

[0064] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An automatic can opener, characterized in that: include: Housing (100); A driving mechanism (200), wherein the driving mechanism (200) is arranged in the housing (100); A transmission mechanism (300), wherein the transmission mechanism (300) is arranged in the housing (100); a main shaft (400), the main shaft (400) being rotatably disposed on the housing (100), a driving wheel (410) being disposed at one end of the main shaft (400) located inside the housing (100), a first cutting wheel (420) being disposed at one end of the main shaft (400) located outside the housing (100), the driving wheel (410) being transmission-connected to the driving mechanism (200) via the transmission mechanism (300); an eccentric wheel (500), the eccentric wheel (500) being sleeved on the main shaft (400), a second cutting wheel (520) being slidably arranged on the housing (100), the eccentric wheel (500) being used to drive the second cutting wheel (520) to approach and move away from the first cutting wheel (420), a gear tooth segment (510) being provided on the periphery of the eccentric wheel (500), a first elastic member (511) being provided at one end of the gear tooth segment (510), and an end of the first elastic member (511) opposite to the gear tooth segment (510) being capable of abutting against the housing (100); an idler wheel (600), the idler wheel (600) being rotatably disposed in the housing (100), the idler wheel (600) comprising a driving gear (610) and a driven gear (620) coaxially disposed on the driving gear (610), the driving gear (610) being transmission-connected to the driving wheel (410), the driven gear (620) being transmission-connected to the eccentric wheel (500), the diameter of the driving gear (610) being smaller than the diameter of the driven gear (620), the driving wheel (410) driving the eccentric wheel (500) to rotate via the idler wheel (600), the operating speed of the driving wheel (410) being smaller than the slipping speed of the eccentric wheel (500), so that the first cutting wheel (420) and the second cutting wheel (520) form a stable rigid gap to clamp on the edge of the can; The operating speed of the driving wheel (410) ranges from 10 rpm to 25 rpm, and the operating speed of the idler wheel (600) is greater than 25 rpm; It also comprises a slide plate (700), the slide plate (700) being slidably arranged on the housing (100), the slide plate (700) being transmission-connected to the eccentric wheel (500), and the second cutting wheel (520) being arranged on a side of the slide plate (700) located outside the housing (100); The eccentric wheel (500) and the slide plate (700) are connected via a double ring plate (710), and the double ring plate (710) converts the rotational motion of the eccentric wheel (500) into the linear motion of the slide plate (700); A second elastic member (430) is provided on the main shaft (400), the second elastic member (430) is located between the driving wheel (410) and the main shaft (400), and the second elastic member (430) is used to fix the position of the driving wheel (410) on the main shaft (400); The first elastic member (511) is a compression spring; The axial direction of the compression spring is tangent to the edge of the eccentric wheel (500); The second cutting wheel (520) is arranged obliquely on the slide plate (700).

2. The automatic can opener according to claim 1, characterized in that: The transmission mechanism (300) is a reduction gear set.

3. The automatic can opener according to claim 2, characterized in that: The reduction gear set comprises a primary gear (310), a secondary gear (320) and a tertiary gear (330) which are meshed in sequence, the primary gear (310) being transmission-connected to the driving mechanism (200), and the tertiary gear (330) being transmission-connected to the driving wheel (410).

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