Meal box film tearing device and food vending machine

Abstract

The invention relates to the field of food vending machines, in particular to a lunch box film tearing device and a food vending machine, and the lunch box film tearing device comprises a movement assembly which is provided with an output end capable of moving in the X direction, the Y direction and the Z direction; the clamping assembly is used for clamping a sealing film of the meal box; the clamping assembly is connected to the output end of the moving assembly in a swinging manner through the swinging connecting assembly; when the clamping assembly clamps the sealing film, the moving assembly drives the clamping assembly to move, and tearing force is applied to the sealing film. After the tearing force is applied, the clamping assembly swings from a first position to a second position around a first straight line relative to the output end of the movement assembly; and after the tearing force disappears, the clamping assembly swings from the second position to the first position. According to the film tearing device, film tearing of the sealed meal box can be achieved, the situation that the sealing film cannot be effectively torn off due to breakage of the sealing film can be effectively avoided, smooth film tearing is ensured, and the use feeling of a user is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of food vending machines, and in particular to a lunch box film tearing device and a food vending machine. Background Art

[0002] The application of food vending machines is becoming more and more widespread, providing people with a convenient way to buy food. In the food vending machines, a lunch box containing food is usually provided with a detachable cover, which can protect the food and improve food safety.

[0003] Normally, food vending machines heat the food in the lunch box before delivering it to the user. However, because the lunch box has a lid, the heating time will be slightly longer, and for some foods, the taste will be better after the lid is removed and then heated. Therefore, some food vending machines are equipped with a suction cup mechanism for lifting the lid, which sucks the lid with a suction cup before heating and then opens it directly.

[0004] With the development of food preparation technology, the emergence of sealed lunch boxes has greatly extended the shelf life of food, and under the same conditions, sealed lunch boxes can better maintain the taste and quality of food. Similarly, for the sake of user experience, there is a demand for heating after tearing the film, but the suction cup mechanism mentioned above is obviously not suitable for sealed lunch boxes. Summary of the invention

[0005] The present application provides a lunch box film tearing device and a food vending machine, which can realize the film tearing of a sealed lunch box and ensure smooth film tearing, thereby improving user experience.

[0006] In a first aspect, the lunch box film tearing device provided by the present application comprises:

[0007] A motion assembly having an output end capable of moving in the X, Y and Z directions;

[0008] A clamping assembly, used to clamp the sealing film of the lunch box; and

[0009] A swing connection assembly, through which the clamping assembly is swingably connected to the output end of the motion assembly;

[0010] When the clamping assembly clamps the sealing film, the moving assembly drives the clamping assembly to move and applies a tearing force to the sealing film; wherein, after the tearing force is applied, the clamping assembly swings from a first position to a second position around a first straight line relative to the output end of the moving assembly; after the tearing force disappears, the clamping assembly swings from the second position to the first position.

[0011] In some embodiments, the swing connection assembly includes:

[0012] A bearing seat, fixed to the output end of the motion assembly;

[0013] A rotating shaft member, connected to the bearing seat member so as to be rotatable about the first straight line and fixed to the clamping assembly; and

[0014] An elastic connecting member, one end of which is connected to the output end of the motion component and the other end of which is connected to the clamping component.

[0015] In some embodiments, a first limiting hole is provided on the clamping assembly;

[0016] The swing connection assembly further comprises a swing limiter, one end of which is fixed to the output end of the motion assembly and the other end of which is slidably connected to the first limiter hole;

[0017] And / or, there are two elastic connecting members, which are symmetrically arranged about the center of the first straight line.

[0018] In some embodiments, the swing connection assembly includes two swing limiters, the two swing limiters are symmetrically arranged about the center of the first straight line, and the first limit holes are arranged in a one-to-one correspondence with the swing limiters.

[0019] In some embodiments, the lunch box film tearing device further includes a fixing component, the fixing component is used to connect the output end of the motion component and the swing connection component, and the fixing component includes:

[0020] A first fixed plate, fixed to the output end of the motion assembly and parallel to the XY plane; and

[0021] a second fixed plate, used to connect the first fixed plate and the swing connection assembly, the second fixed plate being perpendicular to the XY plane and having an angle with the XZ plane, the second fixed plate being able to rotate relative to the first fixed plate around a second straight line parallel to the Z direction to adjust the angle;

[0022] The first straight line is perpendicular to the second fixing plate.

[0023] In some embodiments, the clamping assembly comprises:

[0024] a base member connected to the swing connection assembly;

[0025] A first clamping member, slidably connected to the base member, having a first clamping portion;

[0026] A second clamping member, disposed on the base member, having a second clamping portion located above the first clamping portion; and

[0027] The first driving member is arranged on the base member, and is used for driving the first clamping member to move so that the first clamping part is close to the second clamping part, so as to clamp the sealing film between the first clamping part and the second clamping part.

[0028] In some embodiments, the second clamping member is slidably connected to the base member, and the sliding direction of the second clamping member is parallel to the sliding direction of the first clamping member;

[0029] The clamping assembly also includes a first limiting member and a second limiting member spaced below the first limiting member, the second clamping member is restricted between the first limiting member and the second limiting member, wherein the first limiting member includes a fixing portion and an elastic limiting portion, the fixing portion is fixed to the base member, the elastic limiting portion is compressed between the second clamping member and the fixing portion, and the second limiting member is fixed to the base member.

[0030] In some embodiments, a locking hole is provided on the sealing film;

[0031] The first clamping member further comprises a locking portion, which is protrudingly arranged on a side of the first clamping portion facing the second clamping portion and is plug-fitted with the locking hole.

[0032] In some embodiments, the first driving member includes:

[0033] A first driving part connected to the base member;

[0034] A first transmission screw part connected to the output end of the first driving part; and

[0035] A first output portion, transmission-connected to the first transmission screw portion and fixed to the first clamping member;

[0036] The first driving portion is used to drive the first transmission screw portion to rotate around a third straight line perpendicular to the first straight line, so that the first clamping portion is close to the second clamping portion.

[0037] In a second aspect, an automatic food vending machine provided in an embodiment of the present application includes a lunch box film tearing device provided in any embodiment of the first aspect.

[0038] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows: the lunch box film tearing device and the food vending machine, the lunch box film tearing device includes a motion component, which has an output end that can move along the X direction, the Y direction and the Z direction; a clamping component, which is used to clamp the sealing film of the lunch box; and a swing connection component, the clamping component is swingably connected to the output end of the motion component through the swing connection component; when the clamping component clamps the sealing film, the motion component drives the clamping component to move, and applies a tearing force to the sealing film; wherein, after the tearing force is applied, the clamping component swings from a first position to a second position around a first straight line relative to the output end of the motion component; after the tearing force disappears, the clamping component swings from the second position to the first position. Through the above technical solution, the film tearing of the sealed lunch box can be achieved, and the sealing film can be effectively prevented from breaking so that the sealing film cannot be effectively torn off, ensuring the smoothness of the film tearing and effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the structure of the lunch box film tearing device according to an embodiment of the present application, wherein the clamping assembly is in the first position;

[0040] Figure 2 This is a schematic diagram of the structure of the lunch box film tearing device according to an embodiment of the present application, wherein the clamping assembly is in the first position and the moving assembly is not shown;

[0041] Figure 3 for Figure 2 Another perspective structural schematic diagram of the lunch box film tearing device shown;

[0042] Figure 4 for Figure 2 A schematic diagram of a portion of the structure of a clamping assembly in a lunch box film tearing device is shown;

[0043] Figure 5 for Figure 2 An exploded view of a lunch box film tearing device is shown;

[0044] Figure 6 This is a schematic diagram of the first state of the lunch box film tearing device according to an embodiment of the present application, wherein the clamping assembly is in the first position;

[0045] Figure 7 This is a schematic diagram of the second state of the lunch box film tearing device according to an embodiment of the present application, in which only part of the lunch box clamping device is shown;

[0046] Figure 8 for Figure 7 Schematic diagram of the local structure;

[0047] Fig. 9 This is a schematic diagram of the third state of the lunch box film tearing device according to an embodiment of the present application, wherein the clamping assembly is in the second position;

[0048] Fig.10 for Fig. 9The schematic diagram of the structure of the lunch box film tearing device shown, wherein the moving components are not shown;

[0049] Fig.11 for Fig. 9 The schematic diagram of the film sealing structure in the film tearing device for a lunch box is shown;

[0050] Fig.12 This is a schematic diagram of the structure of the lunch box clamping device in the embodiment of the present application;

[0051] Fig.13 for Fig.12 A schematic diagram of the lunch box clamping device from another perspective shown;

[0052] Fig.14 This is an exploded view of the lunch box clamping device in the embodiment of the present application;

[0053] Fig.15 This is a schematic diagram of the partial structure of the lunch box clamping device in the embodiment of the present application;

[0054] Fig.16 This is a schematic diagram of the use status of the lunch box clamping device in the embodiment of the present application;

[0055] Fig.17 for Fig.16 The lunch box clamping device is shown in another perspective schematic diagram, in which only part of the fixing clamping mechanism is shown;

[0056] Fig.18 for Fig.17 A schematic diagram of the lunch box clamping device from another perspective shown;

[0057] Fig.19 for Fig.17 A front view of the lunch box clamping device shown;

[0058] Fig. 20 for Fig.19 A top view of

[0059] Fig.21 for Fig. 20 A partial structural schematic diagram of a lunch box clamping device is shown;

[0060] Fig. 22 for Fig.21 A schematic diagram of the lunch box clamping device from another perspective shown;

[0061] Fig.23 for Fig.21 AA section view;

[0062] Wherein: 100a-meal box film tearing device (10-movement component (1001-first movement module, 1002-second movement module, 1003-third movement module), 11-clamping component (1101-base component (11011-first limiting hole (110111-first end, 110112-second end)), 1102-first clamping component (11021-first clamping part (110211-first clamping surface), 11022-first pressing plate part, 11023-first vertical arm, 11024-locking part), 1103-second clamping component (11031-second clamping part, 11032-second pressing plate part, 11033-second vertical arm, 11034-second bending arm), 11 04-first driving member (11041-first driving part, 11042-first transmission screw rod part, 11043-first output part), 1105-first slide rail member, 1106-first slider member, 1107-first limiting member (11071-fixing part, 11072-elastic limiting part, 11073-guide part, 11074-fixed limiting part), 1108-second limiting member, 1109-second slide rail member, 1110-second slider member), 12-swing connection assembly (1201-bearing seat member, 1202-bearing member, 1203-rotating shaft member, 1204-elastic connection member (1204a-first elastic connection member, 1204b-second elastic connection member), 1205-first fixed Connecting piece, 1206-second fixed connecting piece, 1207-swinging limit piece), 13a-first straight line, 13b-second straight line, 13c-third straight line, 14-fixed assembly (1401-first fixed plate (14011-first assembly hole, 14012-second assembly hole), 1402-second fixed plate)), 4-lunch box (401-edge (4011-first side, 4012-second side)), 9-sealing film (901-main body, 902-tearing part, 903-positioning hole), 100b-lunch box clamping device (1-fixed clamping mechanism (101-positioning hole (101a-first positioning hole, 101b-second positioning hole), 102-fixed clamping piece (1021-first digging hole hollow portion, 1022-second hollow portion)), 2-active clamping mechanism (201-elastic clamping assembly (201a-first elastic clamping assembly, 201b-second elastic clamping assembly, 2011-third clamping member (20111-body, 20112-third clamping portion), 2012-fixing member (20121-rod, 20122-flange), 2013-elastic member, 2014-sleeve member), 202-first active clamping assembly (2021-guide hole), 203-second active clamping assembly, 204-positioning assembly (204a-first positioning assembly, 204b-second positioning assembly), 205-limiting assembly (2051-third limiting member (20511-second limiting hole),2052-fourth limit member)), 3-first driving mechanism (301-second driving member, 302-first transmission wire rod member, 303-first output member), 5-frame, 6-first sliding connection mechanism (601-third slide rail member, 602-third slider member), 7-second sliding connection mechanism (701-fourth slide rail member, 702-fourth slider member, 703-connecting plate member, 704-fifth slide rail member, 705-fifth slider member), 8-second driving mechanism (801-third driving member, 802-second transmission wire rod member, 803-second output member)). , DETAILED DESCRIPTION

[0063] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0064] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be intermediate elements. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be intermediate elements at the same time.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0066] Please refer to Figures 1 to 11 The lunch box film tearing device 100a in the embodiment of the present application is used to tear off the sealing film 9 on the sealed lunch box 4. The lunch box film tearing device 100a includes a motion component 10, a clamping component 11 and a swing connection component 12. The motion component 10 has an output end that can move along the X direction, the Y direction and the Z direction. The clamping component 11 is used to clamp the sealing film 9 of the lunch box 4, specifically, it can be one of the corners of the sealing film 9, and the clamping component 11 is swingably connected to the output end of the motion component 10 through the swing connection component 12.

[0067] Based on this, when the clamping assembly 11 clamps the sealing film 9, the motion assembly 10 can drive the clamping assembly 11 to move, thereby applying a tearing force to the sealing film 9. After the tearing force is applied, the clamping assembly 11 swings from the first position to the second position around the first straight line relative to the output end of the motion assembly 10. After the tearing force disappears, the clamping assembly 11 swings from the second position to the first position.

[0068] In the embodiment of the present application, through the cooperation of the motion component 10 and the clamping component 11, a tearing force can be applied to the sealing film 9 of the lunch box 4, and then the film can be torn. The specific film tearing process is as follows: After the clamping component 11 clamps one of the corners of the sealing film 9, the motion component 10 starts to move, for example, the direction of movement can be a diagonal direction. In the early stage of movement (it can also be said that the early stage of film tearing), due to the action of the swing connection component 12, the clamping component 11 will swing from the first position to the second position, which makes the tearing force increase slowly, thereby ensuring the smooth tearing of the film. This is because, at the beginning, the proportion of the sealing film 9 that is separated from the lunch box 4 is very small. At this time, if it is torn vigorously, it is very likely to cause the sealing film 9 to break. As a result, a very small part of the sealing film 9 is on the clamping component 11, and most of the sealing film 9 is still bonded to the lunch box 4. The embodiment of the present application swings to increase the tearing force slowly, which can slowly increase the proportion of the sealing film 9 that is separated from the lunch box. After the clamping assembly 11 swings to the second position, the tearing force applied to the sealing film 9 tends to be stable, and at this time, the proportion of the sealing film 9 that is separated from the lunch box has increased, so the film can be torn off smoothly. Finally, after the sealing film 9 is completely separated from the lunch box 4, the tearing force disappears, and the clamping assembly 11 swings from the second position to the first position to complete the film tearing. Therefore, it can be seen that the lunch box film tearing device 100a in the embodiment of the present application can realize the film tearing of the sealed lunch box and ensure the smooth film tearing.

[0069] As an example, in the initial state, the clamping assembly is in Figure 1 , Figure 2 and Figure 6 The first position shown. At this time, the motion component 10 can drive the clamping component 11 to move to a position suitable for clamping operation. After the clamping component 11 clamps the sealing film 9, the motion component 10 can drive the clamping component 11 to move and start tearing the film. In the early stage of film tearing, under the action of the swing connection component 12, the clamping component 11 can swing along the S direction around the first straight line 13a relative to the output end of the motion component 10 to the second position, so that the tearing force increases smoothly, effectively protecting the integrity of the sealing film 9 and ensuring smooth film tearing.

[0070] In some embodiments, please refer to Figure 5 The swing connection assembly 12 includes a bearing seat component 1201, a bearing component 1202, a rotating shaft component 1203 and an elastic connection component 1204.

[0071] The bearing seat 1201 is fixed to the output end of the motion component 10, and the bearing member 1202 is accommodated in the bearing seat 1201. The rotating shaft member 1203 is connected to the bearing seat 1201 through the bearing member 1202, and the rotating shaft member 1203 can rotate around the first straight line 13a relative to the bearing seat 1201, wherein the first straight line 13a is the axis of the rotating shaft member 1203. In addition, the rotating shaft member 1203 is fixed to the clamping assembly 11, so that the clamping assembly 11 can rotate around the first straight line 13a relative to the output end of the motion component 10, and it can be understood that the motion component 10 can drive the clamping assembly 11 to move.

[0072] One end of the elastic connector 1204 is connected to the output end of the motion component 10, and the other end of the elastic connector 1204 is connected to the clamping component 11. Due to the action of the elastic connector 1204, in the early stage of film tearing, the clamping component 11 can be swung smoothly along the S direction around the first straight line 13a relative to the output end of the motion component 10 to the second position, so that the tearing force changes smoothly. And after the film tearing is completed, under the action of the elastic connector 1204, the clamping component 11 can also rotate along the N direction around the first straight line 13a relative to the output end of the motion component 10 to return to the first position, so as to clamp the sealing film 9 next time.

[0073] As an implementation method, the elastic connecting member 1204 may be a tension spring. Figures 2 to 5 The swing connection assembly 12 includes a first fixed connection member 1205 and a second fixed connection member 1206, wherein one end of the first fixed connection member 1205 is fixed to the output end of the motion assembly 10, and the other end of the first fixed connection member 1205 is fixed to one end of the elastic connection member 1204. One end of the second fixed connection member 1206 is fixed to the clamping assembly 11, and the other end of the second fixed connection member 1206 is fixed to the other end of the elastic connection member 1204. When the clamping assembly 11 is in Figure 1 and Figure 6 In the first position shown, the elastic connecting member 1204 is stretched to the minimum extent, and when the clamping assembly 11 is in Fig. 9 and Fig.10 In the first position shown, the elastic connector 1204 is stretched to the maximum extent. Therefore, during the swinging process, the elastic connector 1204 acts as an obstacle, so the swinging is relatively stable, so that the tearing force also changes relatively smoothly. It can be understood that after the film is torn off, under the reset action of the elastic connector 1204, the clamping assembly 11 can rotate along the N direction to return to the first position, which is more convenient to use.

[0074] For some examples, see Figure 4As shown, there are two elastic connectors 1204, and the two elastic connectors 1204 are arranged symmetrically about the center of the first straight line 13a. The two elastic connectors 1204 are respectively a first elastic connector 1204a and a second elastic connector 1204b. Since the two elastic connectors 1204 are arranged symmetrically about the center of the first straight line 13a, the upper end of the first elastic connector 1204a is connected to the first fixed connector 1205, and the lower end of the first elastic connector 1204a is connected to the second fixed connector 1206. The lower end of the second elastic connector 1204b is connected to the first fixed connector 1205, and the upper end of the second elastic connector 1204b is fixed to the second fixed connector 1206.

[0075] It should be noted that, in other embodiments, the elastic connector 1204 may also be other structures, which may be configured according to actual conditions and will not be described in detail herein.

[0076] As an implementation, please refer to Figures 2 to 5 ,as well as Fig.10 As shown, the clamping assembly 11 is provided with a first limiting hole 11011, which can be an arc-shaped hole, and if the arc-shaped hole is regarded as an arc-shaped cylinder, the axis of the first limiting hole 11011 is located on the first straight line 13a. The swing connection assembly 12 also includes a swing limiting member 1207, one end of which is fixed to the output end of the motion assembly 10, and the other end of which is slidably connected to the first limiting hole 11011. When the clamping assembly 11 can rotate around the first straight line 13a relative to the output end of the moving assembly 10, since the swing limiter 1207 is slidably connected in the first limit hole 11011, the first limit hole 11011 can limit the extreme movement position of the swing limiter 1207. In other words, the first limit hole 11011 can limit the extreme swing angle of the clamping assembly 11, which can not only accurately and effectively limit the swinging of the clamping assembly 11 between the first position and the second position, but also effectively protect the elastic connector 1204, avoiding the elastic connector 1204 from being failed due to excessive pulling, which not only improves the stability of the overall structure but also extends the service life of the elastic connector 1204.

[0077] As an example, please refer to Fig.10As shown, the first limiting hole 11011 has a first end 110111 and a second end 110112 that are oppositely disposed. When the swing limiting member 1207 is located at the first end 110111 of the first limiting hole 11011, the clamping assembly 11 is just in the first position, and the elastic connecting member 1204 is in a natural state. When the clamping assembly 11 rotates along the S direction around the first straight line 13a toward the second position relative to the output end of the moving assembly 10, the first limit hole 11011 also rotates relative to the swing limit member 1207, until the clamping assembly 11 rotates to the second position, the swing limit member 1207 is located at the second end 110112 of the first limit hole 11011. At this time, the elastic connecting member 1204 is in a stretched state, but the elastic connecting member 1204 has not reached the ultimate stretched state. Therefore, the swing limit member 1207 can effectively limit the swing angle of the clamping assembly 11, thereby effectively protecting the elastic connecting member 1204 and preventing the elastic connecting member 1204 from being excessively pulled and failing.

[0078] As an example, please refer to Figure 4 , Figure 5 and Fig.10 As shown, the swing connection assembly 12 may include two swing limiters 1207, the two swing limiters 1207 are symmetrically arranged about the center of the first straight line 13a, and the first limit holes 11011 are arranged in a one-to-one correspondence with the swing limiters 1207. When one of the swing limiters 1207 is located at the first end 110111 of the corresponding first limit hole 11011, the other swing limiter 1207 is also located at the first end 110111 of the corresponding first limit hole 11011. When the clamping assembly 11 rotates relative to the output end of the motion assembly 10, the two first limit holes 11011 also rotate relative to the corresponding swing limiters 1207, until the clamping assembly 11 rotates to the second position, the two swing limiters 1207 are just located at the second end 110112 of the corresponding first limit hole 11011, thereby further improving the motion stability of the clamping assembly 11.

[0079] For some examples, see Figure 4 and Figure 5 The swing limiter 1207 is a rod-shaped structure parallel to the first straight line 13a. It is understandable that in other embodiments, the swing limiter 1207 can also be other structures, which can be set according to actual conditions, and will not be described here.

[0080] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 5, the lunch box film tearing device 100a also includes a fixed component 14, which is used to connect the output end of the motion component 10 and the swing connection component 12. The fixed component 14 includes a first fixed plate 1401 and a second fixed plate 1402. The first fixed plate 1401 is fixed to the output end of the motion component 10, and the first fixed plate 1401 is parallel to the XY plane. The second fixed plate 1402 is used to connect the first fixed plate 1401 and the swing connection component 12, and the first straight line 13a is perpendicular to the second fixed plate 1402. Among them, the second fixed plate 1402 is perpendicular to the XY plane, and there is an angle between the second fixed plate 1402 and the XZ plane. Moreover, the angle between the second fixed plate 1402 and the XZ plane can be adjusted, and the angle of the above angle can be adjusted according to actual conditions, which is more convenient to use.

[0081] As an implementation, please refer to Figure 2 , Figure 3 and Figure 5 The second fixing plate 1402 and the first fixing plate 1401 are detachably fixed by a first fastener (not shown) and a second fastener (not shown), and the first fastener and the second fastener may be threaded members such as screws. The first fixing plate 1401 may be provided with a first assembly hole 14011 that matches the first fastener and a second assembly hole 14012 that matches the second fastener, the first assembly hole 14011 may be an arc hole, the second assembly hole 14012 may be a round hole, and the first assembly hole 14011 and the second assembly hole 14012 are coaxially arranged, the threaded rod of the first fastener and the threaded rod of the second fastener may respectively pass through the corresponding first assembly hole 14011 and second assembly hole 14012 and then be screwed into the second fixing plate 1402, thereby fixing the second fixing plate 1402 to the first fixing plate 1401. When the angle of the above-mentioned included angle needs to be adjusted, the first fastener can be disassembled, and then the second fixing plate 1402 can be rotated relative to the first fixing plate 1401 around the second straight line 13b, the second straight line 13b is parallel to the Z direction, and the axis of the second assembly hole 14012 is the second straight line 13b. After the second fixing plate 1402 is rotated to the desired position, the threaded rod of the first fastener can be passed through the first assembly hole 14011 and screwed into the second fixing plate 1402 to fix the second fixing plate 1402 and the first fixing plate 1401, so as to facilitate the adjustment of the angle of the above-mentioned included angle and make it more convenient to use.

[0082] In this embodiment, the bearing seat member 1201, the swing limit member 1207 and the first fixed connection member 1205 can be fixed to the second fixed plate member 1402, that is, the clamping assembly 11 is connected to the second fixed plate member 1402 through the swing connection assembly 12, so that the swing connection assembly 12 can be rotated around the second straight line 13b according to actual needs.

[0083] As an example, please refer to Figure 2 , Figure 3 and Figure 5 The first fixing plate 1401 may have two first assembly holes 14011, which are coaxially arranged. Accordingly, the first fixing plate 1401 and the second fixing plate 1402 may be fastened by two first fasteners, wherein each first assembly hole 14011 cooperates with one first fastener, further improving the connection reliability between the first fixing plate 1401 and the second fixing plate 1402.

[0084] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 and Fig.10 The clamping assembly 11 includes a base member 1101, a first clamping member 1102, a second clamping member 1103 and a first driving member 1104. The base member 1101 is connected to the swing connection assembly 12, that is, the rotating shaft member 1203 and the second fixed connection member 1206 can be fixed to the base member 1101, and the first limiting hole 11011 can be opened in the base member 1101. The first clamping member 1102 is slidably connected to the base member 1101, and the first clamping member 1102 has a first clamping portion 11021. The second clamping member 1103 is arranged on the base member 1101, and the second clamping member 1103 has a second clamping portion 11031, the second clamping portion 11031 is located above the first clamping portion 11021, and the second clamping portion 11031 can cooperate with the first clamping portion 11021 to clamp the sealing film 9. The first driving member 1104 is disposed on the base member 1101 and can be used to drive the first clamping member 1102 to move the first clamping portion 11021 close to the second clamping portion 11031, thereby clamping the sealing film 9 between the first clamping portion 11021 and the second clamping portion 11031. The structure is simple and easy to use.

[0085] As an implementation, please refer to Figure 2 , Figure 3 and Figure 5 The first clamping portion 11021 may have a first clamping surface 110211, and the first clamping surface 110211 is disposed facing the second clamping portion 11031. The second clamping portion 11031 may have a second clamping surface (not shown), and the second clamping surface is disposed facing the first clamping portion 11021. The first clamping surface 110211 and the second clamping surface can cooperate with each other to clamp the sealing film 9.

[0086] As an example, please refer to Figure 2 , Figure 3 and Figure 5The first clamping surface 110211 may be formed with anti-slip patterns, which may be arranged according to actual conditions and will not be elaborated herein.

[0087] As an implementation, please refer to Figure 2 and Figure 5 , the clamping assembly 11 may further include a first slide rail member 1105 and a first slider member 1106. The first slide rail member 1105 is fixed to the base member 1101, and when the clamping assembly 11 is in the first position, the first slide rail member 1105 extends along the Z direction. The first slider member 1106 is fixed to the first clamping member 1102, and the first slider member 1106 is slidably connected to the first slide rail member 1105. In the initial state, the clamping assembly 11 is in the first position, that is, under the drive of the first driving member 1104, the first clamping member 1102 can move upward along the Z direction relative to the base member 1101, so that the first clamping portion 11021 is close to the second clamping portion 11031 along the Z direction.

[0088] It should be noted that, in other embodiments, the clamping assembly 11 may also be other structures. For example, the first clamping member 1102 may also move in other directions so that the first clamping portion 11021 is close to the second clamping portion 11031. Alternatively, the first clamping member 1102 may be stationary and the second clamping member 1103 may move so that the second clamping portion 11031 is close to the first clamping portion 11021. Alternatively, the first clamping member 1102 and the second clamping member 1103 may move separately so that the first clamping portion 11021 and the second clamping portion 11031 may move toward each other.

[0089] In some embodiments, please refer to Figure 2 , Figure 5 and Fig.10The second clamping member 1103 is slidably connected to the base member 1101, and the sliding direction of the second clamping member 1103 is parallel to the sliding direction of the first clamping member 1102. The clamping assembly 11 also includes a first limiting member 1107 and a second limiting member 1108. The second limiting member 1108 is spaced below the first limiting member 1107, and the second clamping member 1103 is limited between the first limiting member 1107 and the second limiting member 1108. The first limiting member 1107 includes a fixing portion 11071 and an elastic limiting portion 11072. The fixing portion 11071 is fixed to the base member 1101, and the elastic limiting portion 11072 is compressed between the second clamping member 1103 and the fixing portion 11071. The second limiting member 1108 is fixed to the base member 1101. When the first clamping member 1102 does not directly or indirectly apply any external force to the second clamping member 1103, due to the reset effect of the elastic limiting portion 11072, the compressed elastic limiting portion 11072 will apply a downward thrust to the second clamping member 1103. When the first clamping portion 11021 moves to cooperate with the second clamping portion 11031 to clamp the sealing film 9, the first clamping portion 11021 will apply an upward thrust to the second clamping portion 11031, thereby pushing the first clamping portion 11021 to move upward, and under the elastic effect of the compressed elastic limiting portion 11072, the second clamping portion 11031 is abutted against the first clamping portion 11021, thereby achieving elastic clamping of the sealing film 9, which can avoid the first clamping portion 11021 and the second clamping portion 11031 from being unable to effectively cooperate to clamp the sealing film 9 due to various process errors.

[0090] As an implementation, the elastic limiting portion 11072 may be a compression spring. It should be noted that, in other implementations, the elastic limiting portion 11072 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0091] As an implementation, please refer to Figure 2 , Figure 3 and Figure 5 The clamping assembly 11 may further include a second rail member 1109 and a second slider member 1110. The second rail member 1109 is fixed to the base member 1101, and the second rail member 1109 is parallel to the first rail member 1105. That is, when the clamping assembly 11 is in the first position, the second rail member 1109 extends along the Z direction. The second slider member 1110 is fixed to the second clamping member 1103, and the second slider member 1110 is slidably connected to the second rail member 1109.

[0092] As an implementation, please refer to Figure 2 , Figure 5 and Fig.10The first clamping member 1102 may also include a first pressure plate portion 11022 and a first vertical arm 11023, wherein the first pressure plate portion 11022 is fixed to the first sliding member 1106, the first vertical arm 11023 is fixed to the lower end of the first pressure plate portion 11022, and the first clamping portion 11021 is fixed to the lower end of the first vertical arm 11023. The second clamping member 1103 may also include a second pressure plate portion 11032, a second vertical arm 11033 and a second bending arm 11034, wherein the second pressure plate portion 11032 is fixed to the second slider 1110, the second vertical arm 11033 is fixed to the lower end of the second pressure plate portion 11032, the second bending arm 11034 is fixed to the lower end of the second vertical arm 11033, and the second bending arm 11034 extends obliquely toward the first vertical arm 11023, and the second clamping portion 11031 is fixed to the lower end of the second bending arm 11034, so that the second clamping portion 11031 can be located above the first clamping portion 11021. This embodiment can effectively reduce the width of the clamping assembly 11, which is more conducive to the miniaturization of the lunch box film tearing device 100a.

[0093] In some embodiments, please refer to Figure 3 The first stopper 1107 further includes a guide portion 11073, one end of which is fixed to the fixing portion 11071, and the other end of which is movably inserted into the second clamping member 1103, and the elastic stopper 11072 is sleeved outside the guide portion 11073. In addition, the extension direction of the guide portion 11073 is parallel to the moving direction of the second clamping member 1103, that is, the guide portion 11073 can make the compression direction and the reset direction of the elastic stopper 11072 parallel to the moving direction of the second clamping member 1103, thereby improving the stability of the elastic stopper 11072. When the second clamping member 1103 moves upward under the action of the first clamping member 1102, the guide portion 11073 and the fixing portion 11071 remain fixed, and the second clamping member 1103 can move relative to the guide portion 11073, so that the elastic limiting portion 11072 is compressed along the path limited by the guide portion 11073.

[0094] As an implementation, please refer to Figure 3 The first limiting member 1107 may include two guiding portions 11073 and two elastic limiting portions 11072. The guiding portions 11073 and the elastic limiting portions 11072 are arranged in a one-to-one correspondence, and the two guiding portions 11073 are symmetrically arranged about the second clamping member 1103, which can make the force on the second clamping member 1103 more balanced, so that the first clamping member 1102 and the second clamping member 1103 can keep clamping the sealing film 9.

[0095] In some embodiments, please refer to Fig.10The first limiting member 1107 may further include a fixed limiting portion 11074, which is fixed to the fixing portion 11071, and the lower end of the fixed limiting portion 11074 protrudes from the lower surface of the fixing portion 11071. When the second clamping member 1103 moves upward to abut against the fixed limiting portion 11074, the second clamping member 1103 will not be able to move upward any further. Therefore, the fixed limiting portion 11074 can effectively limit the upper limit position of the second clamping member 1103, thereby preventing the elastic limiting portion 11072 from being over-compressed, and preventing the second clamping member 1103 from moving upward excessively, thereby preventing the second clamping member 1103 from being unable to effectively cooperate with the first clamping member 1102 to clamp the sealing film 9.

[0096] In some embodiments, please refer to Fig.11 , a locking hole 903 is provided on the sealing film 9. The first clamping member 1102 further includes a locking portion 11024, which is convexly arranged on the side of the first clamping portion 11021 facing the second clamping portion 11031, and the locking portion 11024 is plugged and matched with the locking hole 903, which can improve the matching reliability between the clamping assembly 11 and the sealing film 9, and prevent the sealing film 9 from falling out from between the first clamping member 1102 and the second clamping member 1103 when the film is torn.

[0097] As an embodiment, a clearance hole (not shown) can be opened on the second clamping portion 11031, and the clearance hole can be set corresponding to the locking portion 11024, so as to avoid the locking portion 11024 and prevent the locking portion 11024 from interfering with the second clamping portion 11031, resulting in the first clamping portion 11021 and the second clamping portion 11031 being unable to cooperate to clamp the sealing film 9.

[0098] As an example, in order to effectively tear off the sealing film 9, the lunch box film tearing device 100a can be used in conjunction with the lunch box clamping device 100b, please refer to Figures 6 to 9 . After the lunch box clamping device 100b clamps the edge of the lunch box 4, the lunch box film tearing device 100a can be used to tear off the sealing film 9. The sealing film 9 includes a main body 901 and a tearing portion 902 that are connected as one. The middle part of the main body 901 may have a transparent window. The tearing portion 902 is protruding from the edge of the main body 901, and the positioning hole 903 is opened on the tearing portion 902. The lunch box clamping device 100b has a first hollowed-out portion 1021 and a second hollowed-out portion 1022, and the first hollowed-out portion 1021 and the second hollowed-out portion 1022 are connected to the first hollowed-out portion 1021. Among them, the main body 901 is exposed in the first hollowed-out portion 1021, and the tearing portion 902 is exposed in the second hollowed-out portion 1022, so that the lunch box film tearing device 100a can perform film tearing processing.

[0099] In this example, the working principle of the lunch box film tearing device 100a can be: in the initial state, the first clamping portion 11021 is located above the second hollowing portion 1022, please refer to Figure 6 As shown. After the lunch box clamping device 100b clamps the edge of the lunch box 4, the motion component 10 drives the clamping component 11 to move until the second clamping part 11031 is located above the sealing film 9. At this time, the second clamping part 11031 can contact the upper surface of the sealing film 9, and the first clamping part 11021 extends into the second hollowed-out part 1022 and is located below the sealing film 9, and there is a gap between the first clamping part 11021 and the sealing film 9. Then the first driving member 1104 drives the first clamping part 11021 to move upward. During this process, the locking part 11024 is gradually inserted into the locking hole 903 until the tearing part 902 of the sealing film 9 is clamped between the first clamping part 11021 and the second clamping part 11031. Please refer to Figure 7 and Figure 8 Then the motion component 10 drives the clamping component 11 to move along the X, Y and Z directions, exerting a tearing force on the sealing film 9 to tear off the sealing film 9. Please refer to Fig. 9 For example, the clamping assembly 11 can move along a fourth straight line, and the fourth straight line has an angle with the X direction, the Y direction, and the Z direction respectively. After the tearing force is applied, the clamping assembly 11 swings from the first position to the second position around the first straight line 13a relative to the output end of the motion assembly 10. After the tearing force disappears, the clamping assembly 11 swings back to the first position from the second position.

[0100] In some embodiments, please refer to Figure 5 The first driving member 1104 includes a first driving portion 11041, a first transmission screw portion 11042 and a first output portion 11043. The first driving portion 11041 is connected to the base member 1101, and the first transmission screw portion 11042 is connected to the output end of the first driving portion 11041. The first output portion 11043 is transmission-connected to the first transmission screw portion 11042, and the first output portion 11043 is fixed to the first clamping member 1102. The first driving portion 11041 is used to drive the first transmission screw portion 11042 to rotate around the third straight line 13c, so that the first clamping portion 11021 is close to the second clamping portion 11031. The third straight line 13c is the axis of the first transmission screw portion 11042, and the third straight line 13c is perpendicular to the first straight line 13a.

[0101] As an example, the first driving part 11041 may be a motor, and the first output part 11043 may be a screw nut. It should be noted that in other embodiments, the first driving member 1104 may also be other structures, which can be set according to actual conditions, and will not be described in detail here.

[0102] In some embodiments, please refer to Figure 1The motion assembly 10 includes three motion modules, which are respectively a first motion module 1001, a second motion module 1002 and a third motion module 1003, wherein the second motion module 1002 is connected to the output end of the first motion module 1001, the third motion module 1003 is connected to the output end of the second motion module 1002, and the fixed assembly 14 is connected to the output end of the third motion module 1003. The first motion module 1001 can drive the second motion module 1002 to move along the X direction, the second motion module 1002 can drive the third motion module 1003 to move along the Y direction, and the third motion module 1003 can drive the fixed assembly 14 to move along the Z direction, thereby realizing the movement of the clamping assembly 11 in the X direction, the Y direction and the Z direction.

[0103] As an example, the motion module can be a linear slide. It should be noted that in other embodiments, the motion module can also be other structures, which can be set as needed and will not be described in detail here.

[0104] The food vending machine in the embodiment of the present application includes the lunch box film tearing device 100a provided in any of the above embodiments.

[0105] In some embodiments, the food vending machine may further include a lunch box clamping device 100b. Figures 12 to 23 , the lunch box clamping device 100b includes a fixed clamping mechanism 1, a movable clamping mechanism 2 and a first driving mechanism 3. The movable clamping mechanism 2 is arranged below the fixed clamping mechanism 1, and the movable clamping mechanism 2 includes a plurality of elastic clamping components 201, all of which are arranged at intervals along the edge 401 of the lunch box 4, and all of the elastic clamping components 201 are used together to support the edge 401 of the lunch box 4. The first driving mechanism 3 can be used to drive the movable clamping mechanism 2 supporting the lunch box 4 to move upward to the third position. When the movable clamping mechanism 2 is in the third position, the fixed clamping mechanism 1 abuts against at least a portion of the edge 401 of the lunch box 4, and each elastic clamping component 201 is independently compressed downward under the action of the fixed clamping mechanism 1, thereby clamping the lunch box 4.

[0106] In the embodiment of the present application, the movable clamping mechanism 2 includes a plurality of mutually independent elastic clamping components 201. Under the action of the fixed clamping mechanism 1, each elastic clamping component 201 can be compressed downwards independently, thereby clamping the corresponding points of the edge 401 of the lunch box 4. Regardless of whether the edge 401 of the lunch box 4 is flat or unevenly curved, the movable clamping mechanism 2 in the third position cooperates with the fixed clamping mechanism 1 to clamp the edge 401 of the lunch box 4. This is not only suitable for the edges 401 of lunch boxes 4 of various shapes, but can also prevent the lunch box 4 from being deformed by being clamped, and can also improve the clamping reliability, prevent the lunch box 4 from falling off, and effectively improve the user experience.

[0107] In some embodiments, please refer to Fig.14 The elastic clamping assembly 201 includes a third clamping member 2011, a fixing member 2012 and an elastic member 2013. The third clamping member 2011 and the fixing member 2012 are vertically arranged in sequence in a direction away from the edge 401 of the lunch box 4. The fixing member 2012 is fixedly connected to the movable clamping mechanism 2, the third clamping member 2011 is used to abut against the lower surface of the edge 401 of the lunch box 4, the elastic member 2013 is sleeved outside the fixing member 2012, and the elastic member 2013 abuts between the third clamping member 2011 and the fixing member 2012.

[0108] In this embodiment, under the action of the elastic member 2013, the third clamping member 2011 can abut against the lower surface of the edge 401 of the lunch box 4, and the elastic member 2013 of each elastic clamping component 201 can be compressed and reset independently without affecting each other, effectively ensuring that each elastic clamping component 201 can be independently compressed downward to clamp the corresponding point of the edge 401 of the lunch box 4 under the action of the fixed clamping mechanism 1, thereby firmly clamping the lunch box 4.

[0109] In some embodiments, please refer to Fig.23 The third clamping member 2011 includes a body 20111 and a plurality of third clamping parts 20112, each of which is convexly arranged on the upper end of the body 20111, and each of which is respectively in contact with the lower surface of the edge 401 of the lunch box 4. Each elastic clamping assembly 201 may include a plurality of elastic members 2013 and a plurality of fixing members 2012, the fixing members 2012 and the third clamping parts 20112 are arranged one by one in the Z direction, and the elastic members 2013 are sleeved outside the corresponding fixing members 2012 and are in contact between the body 20111 and the corresponding fixing members 2012. It can be understood that such an embodiment can enhance the overall structural strength of the elastic clamping assembly 201, so that the elastic clamping assembly 201 can be compressed vertically downward as stably as possible under force, thereby improving the reliability of use; at the same time, the contact area between the elastic clamping assembly 201 and the edge 401 of the lunch box 4 is increased, thereby improving the clamping reliability.

[0110] For example, please refer to Fig.23The third clamping member 2011 includes a body 20111 and two third clamping parts 20112. The two third clamping parts 20112 are respectively convexly arranged on the upper end of the body 20111, and the two third clamping parts 20112 are symmetrically arranged about the body 20111, and each third clamping part 20112 is respectively abutted against the lower end of the edge 401 of the lunch box 4. The elastic clamping member includes two fixing members 2012 and two elastic members 2013, the two fixing members 2012 are symmetrically arranged about the third clamping member 2011 and are arranged one by one with the third clamping parts 20112, the elastic members 2013 are sleeved outside the corresponding fixing members 2012, and abut between the body 20111 and the corresponding fixing members 2012, and the two third clamping parts 20112 can respectively clamp the corresponding points of the edge 401 of the lunch box 4, further improving the clamping reliability.

[0111] In some embodiments, please refer to Fig.15 The lunch box 4 is square, and the edge 401 of the lunch box 4 includes four sides. It should be noted that the square described here should be understood in a broad sense, that is, the lunch box 4 is square in general. Simply put, the lunch box 4 gives people a square setting at first glance. Among them, the elastic clamping component 201 is set corresponding to at least two of the oppositely arranged sides, so as to ensure the clamping reliability. It should be noted that in other embodiments, the lunch box 4 can also be of other shapes, which can be set according to actual conditions, and will not be repeated here.

[0112] As an implementation, please refer to Fig.15 The four sides include two first sides 4011 and two second sides 4012. The two first sides 4011 are arranged opposite to each other in the Y direction, and the two second sides 4012 are arranged opposite to each other in the X direction.

[0113] like Fig.14 As shown, in the movable clamping mechanism 2, the elastic clamping component 201 is divided into a first elastic clamping component 201a and a second elastic clamping component 201b. The first elastic clamping component 201a is supported at the lower end of the first side 4011, and the second elastic clamping component 201b is supported at the lower end of the second side 4012. Based on this, the movable clamping mechanism 2 also includes a first movable clamping component 202 and a second movable clamping component 203.

[0114] There is one first movable clamping assembly 202, and the first movable clamping assembly 202 is arranged corresponding to one of the first side edges 4011, so a plurality of first elastic clamping assemblies 201a are arranged at the upper end of the first movable clamping assembly 202. There are two second movable clamping assemblies 203, and the two second movable clamping assemblies 203 are arranged one-to-one corresponding to the two second side edges 4012, so a plurality of second elastic clamping assemblies 201b are arranged at the upper end of each second movable clamping assembly 203. The first movable clamping assembly 202 is used to position the lunch box 4 in the Y direction, and the two second movable clamping assemblies 203 can move toward each other along the X direction to position the lunch box 4 in the X direction.

[0115] As an example, when in use, the first side edge 4011 of the lunch box 4 can be placed on the first elastic clamping component 201a to achieve the positioning of the lunch box 4 in the Y direction. Then, the two second movable clamping components 203 are moved toward each other along the X direction until the two second side edges 4012 of the lunch box 4 are placed on the corresponding second elastic clamping components 201b, thereby achieving the positioning of the lunch box 4 in the X direction. Please refer to Fig.15 Then, the movable clamping mechanism 2 supporting the lunch box 4 is driven to move upward to the third position, so that the fixed clamping mechanism 1 and the movable clamping mechanism 2 cooperate to clamp the edge 401 of the lunch box 4. Please refer to Figures 16 to 20 .

[0116] In this embodiment, the structure of the first elastic clamping component 201a and the structure of the second elastic clamping component 201b may be the same, and the following description will be made taking the first elastic clamping component 201a as an example.

[0117] For some examples, see Fig.23 The first movable clamping component 202 is provided with a guide hole 2021 corresponding to the fixing component 2012. The fixing component 2012 includes a rod portion 20121 and a flange portion 20122 connected in one piece, and the flange portion 20122 is protruded from the lower end of the rod portion 20121. The upper end of the rod portion 20121 passes through the guide hole 2021 and is fixed to the third clamping component 2011, and the flange portion 20122 is restricted outside the guide hole 2021. The elastic component 2013 is sleeved on the rod portion 20121 and is compressed between the third clamping component 2011 and the first movable clamping component 202. In this example, the fixing member 2012 can also guide the third clamping member 2011 so that the third clamping member 2011 can move more stably along the Z direction, thereby making the structure of the first elastic clamping component 201a more stable and can more stably and effectively clamp the corresponding point of the edge 401 of the lunch box 4.

[0118] For an example, see Fig.14 and Fig.23The first elastic clamping assembly 201a may further include a sleeve member 2014, which is confined in the guide hole 2021 and sleeved outside the rod portion 20121, thereby effectively reducing the friction between the rod portion 20121 and the first movable clamping assembly 202 and extending the service life of the first movable clamping assembly 202.

[0119] It should be noted that, in other embodiments, the first elastic clamping component 201a and the second elastic clamping component 201b may also be other structures, and the structure of the first elastic clamping component 201a and the structure of the second elastic clamping component 201b may also be different, and can be set according to actual conditions, which will not be elaborated here.

[0120] In some embodiments, please refer to Fig.14 , Fig.15 and Fig. 20 The movable clamping mechanism 2 further includes a positioning component 204. The first movable clamping component 202 may be provided with a positioning component 204, and the second movable clamping component 203 may also be provided with a positioning component 204. The fixed clamping mechanism 1 is provided with a positioning hole 101, and the positioning hole 101 is plugged and matched with the corresponding positioning component 204.

[0121] When the movable clamping mechanism 2 moves to the third position, the positioning component 204 is just inserted into the corresponding positioning hole 101, and the positioning component 204 on the first movable clamping component 202 can abut against the edge of the lunch box 4 in the Y direction, and the positioning component 204 of the second movable clamping component 203 can abut against the edge of the lunch box 4 in the X direction, which not only improves the matching accuracy of the movable clamping mechanism 2 and the fixed clamping mechanism 1, so that the movable clamping mechanism 2 and the fixed clamping mechanism 1 can more effectively cooperate to clamp the edge 401 of the lunch box 4, but also improves the positioning accuracy of the lunch box 4 on the lunch box clamping device 100b.

[0122] As an implementation, please refer to Fig.15 as well as Figure 20 to Figure 22, the positioning component 204 is divided into a first positioning component 204a and a second positioning component 204b, and the positioning hole 101 is divided into a first positioning hole 101a and a second positioning hole 101b. Among them, the first positioning component 204a is fixed to the upper end of the first movable clamping component 202, and two first positioning components 204a are arranged on the first movable clamping component 202, and the two first positioning components 204a are symmetrically arranged in the X direction, and the fixed clamping mechanism 1 is provided with a first positioning hole 101a that is plugged and matched with the first positioning component 204a in a one-to-one correspondence. The second positioning component 204b is fixed to the upper end of the second movable clamping component 203, and two second positioning components 204b are arranged on each second movable clamping component 203, and the two second positioning components 204b are symmetrically arranged in the Y direction, and the fixed clamping mechanism 1 is provided with a second positioning hole 101b that is plugged and matched with the second positioning component 204b in a one-to-one correspondence. This embodiment can not only further improve the matching accuracy of the movable clamping mechanism 2 and the fixed clamping mechanism 1, but also the first positioning component 204a can reliably position the lunch box 4 in the Y direction, and the second positioning component 204b can reliably position the lunch box 4 in the X direction, further improving the positioning accuracy of the lunch box 4 on the lunch box clamping device 100b, and making it more convenient for subsequent precise operations such as film tearing.

[0123] As an example, please refer to Fig. 20 The second positioning hole 101b can be an elongated hole penetrating the fixed clamping mechanism 1 along the Z direction, and the second positioning hole 101b extends along the X direction, so that the lunch box clamping device 100b can be suitable for clamping lunch boxes 4 of different sizes, and is more flexible to use.

[0124] In some embodiments, please refer to Figures 12 to 22 The lunch box clamping device 100b also includes a frame 5, a first sliding connection mechanism 6, a second sliding connection mechanism 7, and a second driving mechanism 8. The fixed clamping mechanism 1 is fixed to the frame 5, and the first sliding connection mechanism 6 is used to slide and connect the first movable clamping assembly 202 and the frame 5. Under the action of the first sliding connection mechanism 6, the first movable clamping assembly 202 can move relative to the frame 5 along the Z direction. There are two second sliding connection mechanisms 7, and the two second sliding connection mechanisms 7 are arranged in a one-to-one correspondence with the two second movable clamping assemblies 203. Each second sliding connection mechanism 7 is used to slide and connect the corresponding second movable clamping assembly 203 and the frame 5. Under the action of the second sliding connection mechanism 7, the second movable clamping assembly 203 can move relative to the frame 5 along the Z direction and the X direction. The second driving mechanism 8 is arranged on the frame 5. The second driving mechanism 8 can be used to drive the two second movable clamping components 203 to move toward each other in the X direction, so as to position the lunch box 4 in the X direction. The second driving mechanism 8 can also be used to drive the two second movable clamping components 203 to move away from each other in the X direction, so as to release the lunch box 4.

[0125] In this embodiment, a second driving mechanism 8 can be used to simultaneously drive the two second movable clamping components 203 to move toward or away from each other in the X direction. The structure is simpler, the driving mechanism is reduced, and the structural complexity of the lunch box clamping device 100b is reduced. At the same time, the space occupied by the lunch box clamping device 100b can be reduced, which is more conducive to the miniaturization of the lunch box clamping device 100b.

[0126] As an implementation, please refer to Figures 12 to 22 , the second driving mechanism 8 includes a third driving member 801, a second transmission wire rod 802 and a second output member 803. The third driving member 801 is fixed to the frame 5, and the second transmission wire rod 802 is fixed to the output end of the third driving member 801. There are two second output members 803, and the two second output members 803 are arranged in a one-to-one correspondence with the two second sliding connection mechanisms 7. One end of the second output member 803 in the Y direction is transmission-connected to the second transmission wire rod 802, and the other end of the second output member 803 in the Y direction is fixed to the corresponding second sliding connection mechanism 7. The third driving member 801 can drive the second transmission wire rod 802 to rotate around the second axis, so that the two second output members 803 move toward or away from each other in the X direction, thereby driving the two second movable clamping assemblies 203 to move toward or away from each other through the two second sliding connection mechanisms 7. Among them, the second axis is the axis of the second transmission wire rod 802 itself, and the second axis is parallel to the X direction.

[0127] As an example, the third driving member 801 may be a motor, and the second output member 803 may be a screw nut. It should be noted that in other embodiments, the second driving mechanism 8 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0128] As an implementation, please refer to Fig.12 , Fig.14 , Fig.15 , Fig.17 and Fig. 22 The first sliding connection mechanism 6 includes a third slide rail member 601 and a third slider member 602. The third slide rail member 601 is fixed to the frame 5, and the third slide rail member 601 extends along the Z direction. The third slider member 602 is fixed to the first movable clamping assembly 202, and the third slider member 602 is slidably connected to the third slide rail member 601. Under the action of the first driving mechanism 3, the third slider member 602 can slide along the Z direction on the third slide rail member 601, thereby realizing the sliding connection between the first movable clamping assembly 202 and the frame 5 in the Z direction.

[0129] As an implementation, please refer to Fig.12 , Fig.14 , Fig.15 , Fig.17and Fig. 22 , the second sliding connection mechanism 7 includes a fourth slide rail member 701, a fourth slider member 702, a connecting plate member 703, a fifth slide rail member 704 and a fifth slide rail member 705. Among them, the fourth slide rail member 701 is fixed to the frame 5, and the fourth slide rail member 701 extends along the X direction. The fourth slider member 702 is slidably connected to the fourth slide rail member 701, and the fourth slider member 702 is fixedly connected to the fifth slide rail member 704 through the connecting plate member 703, and the fifth slide rail member 704 extends along the Z direction. The fifth slide rail member 705 is fixed to the second movable clamping assembly 203, and the fifth slide rail member 705 is slidably connected to the fifth slide rail member 704. In this embodiment, the second output member 803 of the second driving mechanism 8 is fixed to the connecting plate member 703. Under the action of the second driving mechanism 8, the fourth slide rail member 702 can move along the X direction on the fourth slide rail member 701, thereby realizing the sliding connection between the second movable clamping assembly 203 and the frame 5 in the X direction. Under the action of the first driving mechanism 3 , the fifth sliding block 705 can slide on the fifth sliding rail 704 along the Z direction, thereby realizing the sliding connection between the second movable clamping assembly 203 and the frame 5 in the Z direction.

[0130] In some embodiments, please refer to Fig.12 and Fig.14 , the first driving mechanism 3 is arranged on the frame 5, and the first driving mechanism 3 can be used to drive the first movable clamping assembly 202 and the second movable clamping assembly 203 to move synchronously in the Z direction. Among them, the output end of the first driving mechanism 3 is connected to the first movable clamping assembly 202. The movable clamping mechanism 2 also includes a limit assembly 205, and the limit assembly 205 includes a third limit member 2051 and two fourth limit members 2052. The third limit member 2051 is fixed to the first movable clamping assembly 202. The fourth limit member 2052 is arranged in a one-to-one correspondence with the second movable clamping assembly 203, and each fourth limit member 2052 is respectively fixed to the corresponding second movable clamping assembly 203, and each fourth limit member 2052 is respectively connected to the third limit member 2051 in the X-direction by sliding, and each of the fourth limit members 2052 can slide in the X-direction relative to the third limit member 2051.

[0131] In this embodiment, the movable clamping mechanism 2 further includes a limiting assembly 205, under the action of the limiting assembly 205, the second movable clamping assembly 203 can slide relative to the first movable clamping assembly 202 along the X direction. Moreover, under the action of the limiting assembly 205, when the first driving mechanism 3 drives the first movable clamping assembly 202 to move along the Z direction, the second movable clamping assembly 203 can also move along the Z direction with the first movable clamping assembly 202. Using a first driving mechanism 3 can drive the first movable clamping assembly 202 and the second movable clamping assembly 203 to move synchronously in the Z direction, the structure is simpler, the driving mechanism is reduced, the structural complexity of the lunch box clamping device 100b is reduced, and the space occupied by the lunch box clamping device 100b can be reduced, which is more conducive to the miniaturization of the lunch box clamping device 100b.

[0132] As an implementation, please refer to Fig.18 The third limiting member 2051 may be a plate-shaped structure extending in the X direction. The third limiting member 2051 is provided with two second limiting holes 20511 symmetrically arranged in the X direction. The second limiting holes 20511 are configured as elongated holes extending in the X direction. The fourth limiting member 2052 is a pulley rotatably connected to the second movable clamping assembly 203, and the fourth limiting member 2052 is slidably connected in the corresponding second limiting hole 20511. Since the second limiting hole 20511 is an elongated hole extending in the X direction, the second movable clamping assembly 203 can move in the X direction relative to the first movable clamping assembly 202, but the second movable clamping assembly 203 cannot move in other directions relative to the first movable clamping assembly 202. Therefore, when the first driving mechanism 3 drives the first movable clamping assembly 202 to move in the Z direction, the second movable clamping assembly 203 will move synchronously with the first movable clamping assembly 202 in the Z direction, the structure is simpler, the driving mechanism is reduced, and the structural complexity of the lunch box clamping device 100b is reduced. When the second movable clamping assembly 203 moves along the X direction relative to the first movable clamping assembly 202, the first movable clamping assembly 202 remains stationary in the X direction, and the fourth limiting member 2052 can slide in the second limiting hole 20511 relative to the third limiting member 2051, which not only allows the second movable clamping assembly 203 to move more smoothly along the X direction relative to the first movable clamping assembly 202, but also can effectively reduce the friction between the third limiting member 2051 and the fourth limiting member 2052, thereby extending the service life of the limiting assembly 205.

[0133] As an implementation, please refer to Fig.14The first driving mechanism 3 includes a second driving member 301, a first transmission screw member 302 and a first output member 303. The second driving member 301 is fixed to the frame 5, and the first transmission screw member 302 is fixed to the output end of the second driving member 301. The first output member 303 is transmission-connected to the first transmission screw member 302, and the first output member 303 is fixed to the first movable clamping assembly 202. The second driving member 301 can drive the first transmission screw member 302 to rotate around the first axis, so that the first movable clamping assembly 202 and the second movable clamping assembly 203 move synchronously in the Z direction. Among them, the first axis is the own axis of the first transmission screw member 302, and the first axis is parallel to the Z direction.

[0134] As an example, the second driving member 301 may be a motor, and the first output member 303 may be a screw nut. It should be noted that in other embodiments, the first driving mechanism 3 may also be other structures, which may be configured according to actual conditions, and will not be described in detail here.

[0135] As an example, the working principle of the lunch box clamping device 100b is as follows: after the first side edge 4011 of the lunch box 4 is placed on the first elastic clamping component 201a and the edge of the lunch box 4 is abutted against the first positioning component 204a in the Y direction, the second driving mechanism 8 drives the two second movable clamping components 203 to move toward each other along the X direction relative to the first movable clamping component 202 until the two second side edges 4012 of the lunch box 4 are placed on the corresponding second elastic clamping components 201b and the edge of the lunch box 4 is abutted against the second positioning component 204b in the X direction, please refer to Fig.15 Then the first driving mechanism 3 drives the first movable clamping assembly 202 and the second movable clamping assembly 203 supporting the lunch box 4 to move upward to the third position synchronously, so that the fixed clamping mechanism 1 and the movable clamping mechanism 2 cooperate to clamp the edge 401 of the lunch box 4, please refer to Figures 16 to 20 After waiting for other devices to complete the processing of the lunch box 4, for example, the moving processing of the lunch box clamping device 100b and the film tearing processing of the lunch box film tearing device 100a, the first driving mechanism 3 drives the first movable clamping component 202 and the second movable clamping component 203 that jointly support the lunch box 4 to move downward synchronously, so that the lunch box 4 is separated from the fixed clamping mechanism 1, and then the second driving mechanism 8 drives the two second movable clamping components 203 to move in opposite directions along the X direction to release the lunch box 4, so that the lunch box 4 can be removed from the lunch box clamping device 100b.

[0136] In some embodiments, please refer to Fig.15 and Fig. 20The fixed clamping mechanism 1 includes a fixed clamping member 102, which is fixed to the frame 5, and a positioning hole 101 is provided on the fixed clamping member 102. The fixed clamping member 102 is a hollow structure, and the fixed clamping member 102 also has a first hollowing portion 1021 and a second hollowing portion 1022, the first hollowing portion 1021 and the second hollowing portion 1022 respectively penetrate the fixed clamping member 102 along the Z direction, and the second hollowing portion 1022 is connected to the first hollowing portion 1021. Among them, the main body 901 is exposed in the first hollowing portion 1021, and the tearing portion 902 is exposed in the second hollowing portion 1022, so that the lunch box film tearing device 100a can easily perform film tearing processing.

[0137] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0138] The above embodiments only express the preferred implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A lunch box film tearing device, characterized in that: include: A motion assembly having an output end capable of moving in the X, Y and Z directions; A clamping assembly, used for clamping the sealing film of the lunch box; and A swing connection assembly, through which the clamping assembly is swingably connected to the output end of the motion assembly; When the clamping assembly clamps the sealing film, the moving assembly drives the clamping assembly to move and applies a tearing force to the sealing film; wherein, after the tearing force is applied, the clamping assembly swings from a first position to a second position around a first straight line relative to the output end of the moving assembly; after the tearing force disappears, the clamping assembly swings from the second position to the first position.

2. The lunch box film tearing device according to claim 1, characterized in that: The swing connection assembly comprises: A bearing seat, fixed to the output end of the motion assembly; A rotating shaft member, connected to the bearing seat member so as to be rotatable about the first straight line and fixed to the clamping assembly; and An elastic connecting member, one end of which is connected to the output end of the motion component and the other end of which is connected to the clamping component.

3. The lunch box film tearing device according to claim 2, characterized in that: The clamping assembly is provided with a first limiting hole; The swing connection assembly further comprises a swing limiter, one end of which is fixed to the output end of the motion assembly and the other end of which is slidably connected to the first limiter hole; And / or, there are two elastic connecting members, which are symmetrically arranged about the center of the first straight line.

4. The lunch box film tearing device according to claim 3, characterized in that: The swing connection assembly includes two swing limiters, which are symmetrically arranged about the center of the first straight line, and the first limit holes are arranged in a one-to-one correspondence with the swing limiters.

5. The lunch box film tearing device according to claim 1, characterized in that: The lunch box film tearing device also includes a fixing component, which is used to connect the output end of the motion component and the swing connection component, and the fixing component includes: A first fixed plate, fixed to the output end of the motion assembly and parallel to the XY plane; and a second fixed plate, used to connect the first fixed plate and the swing connection assembly, the second fixed plate being perpendicular to the XY plane and having an angle with the XZ plane, the second fixed plate being able to rotate relative to the first fixed plate around a second straight line parallel to the Z direction to adjust the angle; The first straight line is perpendicular to the second fixing plate.

6. The lunch box film tearing device according to any one of claims 1 to 5, characterized in that: The clamping assembly comprises: a base member connected to the swing connection assembly; A first clamping member, slidably connected to the base member, having a first clamping portion; A second clamping member, disposed on the base member, having a second clamping portion located above the first clamping portion; and The first driving member is arranged on the base member, and is used for driving the first clamping member to move so that the first clamping part is close to the second clamping part, so as to clamp the sealing film between the first clamping part and the second clamping part.

7. The lunch box film tearing device according to claim 6, characterized in that: The second clamping member is slidably connected to the base member, and a sliding direction of the second clamping member is parallel to a sliding direction of the first clamping member; The clamping assembly also includes a first limiting member and a second limiting member spaced below the first limiting member, the second clamping member is restricted between the first limiting member and the second limiting member, wherein the first limiting member includes a fixing portion and an elastic limiting portion, the fixing portion is fixed to the base member, the elastic limiting portion is compressed between the second clamping member and the fixing portion, and the second limiting member is fixed to the base member.

8. The lunch box film tearing device according to claim 6, characterized in that: The sealing film is provided with a locking hole; The first clamping member further comprises a locking portion, which is protrudingly arranged on a side of the first clamping portion facing the second clamping portion and is plug-fitted with the locking hole.

9. The lunch box film tearing device according to claim 6, characterized in that: The first driving member comprises: A first driving part connected to the base member; A first transmission screw part connected to the output end of the first driving part; and A first output portion, transmission-connected to the first transmission screw portion and fixed to the first clamping member; The first driving portion is used to drive the first transmission screw portion to rotate around a third straight line perpendicular to the first straight line, so that the first clamping portion is close to the second clamping portion.

10. A food vending machine, characterized in that: It comprises the lunch box film tearing device as described in any one of claims 1 to 9.

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