Bag clamping device

Abstract

The invention relates to the technical field of part packaging, and discloses a bag clamping device. The bag clamping device comprises two opening cantilevers which are oppositely arranged; the two clamping jaws are arranged on the two opening cantilevers correspondingly and used for clamping the two ends of an upper opening of the packaging bag. The first driving assembly is in transmission connection with the two clamping jaws, and the first driving assembly is used for driving the two clamping jaws to be opened at the same time so as to loosen the packaging bag or driving the two clamping jaws to be closed at the same time so as to clamp the packaging bag; and the second driving assembly is in transmission connection with the two opening cantilevers, and the second driving assembly is used for driving the two opening cantilevers to be relatively close to or away from each other. When the two clamping jaws clamp a packaging bag, the two opening cantilevers are driven to be relatively close to each other so that an opening of the packaging bag can be opened, parts can be conveniently contained in the packaging bag, and the two opening cantilevers are driven to be relatively away from each other so that the opening of the packaging bag can be closed, and the packaging bag containing the parts can be conveniently closed; automatic operation of the bag clamping device is used for replacing part of manual operation during part bagging operation, and therefore efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of parts packaging, and in particular to a bag clamping device. Background Art

[0002] In order to prevent some small assembly parts from being bumped or dropped during transportation, they are often packed in packaging bags. For example, bolts and screws used in air conditioner assembly, or tamper-proof boxes used to protect air conditioners, electronic products, food packaging, etc., are packed in flat bags during transportation. Flat bags are film bags with three sides sealed and one side open. The opening can be sealed by heat sealing, gluing, or using sealing clips. Currently, the bagging operation of parts is usually done manually, which has low bagging efficiency and affects the efficiency of parts packaging. Summary of the invention

[0003] In view of this, the present invention provides a bag clamping device to solve the problem that the bagging operation of parts is currently performed entirely manually, the bagging efficiency is low, and the parts packaging efficiency is affected.

[0004] The present invention provides a bag clamping device, comprising:

[0005] Two opening cantilevers arranged opposite to each other;

[0006] Two clamping claws, respectively provided on the two opening cantilevers, the two clamping claws being used to clamp the two ends of the opening on the packaging bag;

[0007] a first driving assembly, which is in driving connection with the two clamping jaws, and is used to drive the two clamping jaws to open simultaneously to release the packaging bag, or to drive the two clamping jaws to close simultaneously to clamp the packaging bag;

[0008] A second driving assembly is drivingly connected to the two opening cantilevers, and the second driving assembly is used to drive the two opening cantilevers to move relatively closer or relatively farther away;

[0009] When the two clamping jaws clamp the packaging bag, the two opening cantilevers can be driven relatively close to each other to open the opening of the packaging bag, or can be driven relatively far away to close the opening of the packaging bag.

[0010] Beneficial effects: The present invention provides a bag clamping device, which drives two clamping jaws to open or close simultaneously to loosen or clamp the packaging bag through a first driving component, so that the bag clamping device can perform operations of clamping an empty packaging bag and loosening a packaging bag containing parts; when the two clamping jaws clamp the packaging bag, the second driving component drives the two opening cantilevers to be relatively close to each other so that the opening of the packaging bag is opened, so that the parts can be loaded into the packaging bag, and the second driving component drives the two opening cantilevers to be relatively apart so that the opening of the packaging bag is closed, so that the packaging bag containing parts can be closed; in this way, the automated operation of the bag clamping device replaces part of the manual operation during the parts bagging operation, thereby improving the bagging efficiency and the parts packaging efficiency.

[0011] In an optional embodiment, the clamping jaw comprises:

[0012] A fixed claw body, fixedly connected to the end of the open cantilever;

[0013] The movable claw body is rotatably connected to the end of the opening cantilever or the fixed claw body. The movable claw body is transmission-connected to the second driving assembly and can be driven away from the fixed claw body to release the packaging bag, or can be driven close to the fixed claw body to clamp the packaging bag.

[0014] Beneficial effects: The clamping claw is provided with a fixed claw body and a movable claw body which can be driven away from or close to the fixed claw body, thereby realizing the operation of clamping an empty packaging bag and releasing a packaging bag containing parts, with a simple structure and stable clamping.

[0015] In an optional embodiment, one of the fixed claw body and the movable claw body is provided with a magnetic attraction component, and the other of the fixed claw body and the movable claw body is provided with a magnetic attraction matching component, and the magnetic attraction component and the magnetic attraction matching component are arranged in corresponding positions.

[0016] Beneficial effect: The clamping force of the clamping claw when clamping the packaging bag is improved through the magnetic attraction and coordination of the magnetic attraction piece and the magnetic attraction coordination piece, thereby improving the stability of the clamping claw when clamping the packaging bag.

[0017] In an optional embodiment, the first driving assembly includes:

[0018] a first driving structure, drivingly connected to the movable claw body, the first driving structure being used to drive the movable claw body away from the fixed claw body;

[0019] The first elastic member is disposed between the first driving structure and the open cantilever, and is used for deforming when the movable claw body is driven away from the fixed claw body, and driving the movable claw body to approach the fixed claw body when the deformation is restored.

[0020] Beneficial effect: The deformation reset of the first elastic member is used to drive the movable claw body close to the fixed claw body, so that the clamping claw is reset to a clamping state, avoiding resetting the driving member to reset the movable claw body, simplifying the structure of the bag clamping device and reducing energy consumption.

[0021] In an optional implementation, the first driving structure includes:

[0022] A first driving member comprises a first fixed portion and a first movable portion which moves parallel to the first fixed portion;

[0023] An opening claw push plate is arranged on the first movable part, and the opening claw push plate has two pushing ends;

[0024] Two groups of connecting rod groups are respectively arranged on the two open cantilevers, and each group of the connecting rod groups includes a transmission connecting rod and a driving connecting rod; the middle part of the transmission connecting rod is rotatably connected with the open cantilever, and the end of the transmission connecting rod close to the open claw push plate can abut against the pushing end; one end of the driving connecting rod is rotatably connected with the other end of the transmission connecting rod away from the open claw push plate, and the other end of the driving connecting rod is rotatably connected with the movable claw body; the first elastic member is arranged between the side of the transmission connecting rod away from the open claw push plate and the open cantilever.

[0025] Beneficial effect: The first driving member drives the jaw push plate to drive the two transmission connecting rods and the two driving connecting rods to transmit power, and cooperates with the two first elastic members to achieve the clamping or closing of the two jaws, while ensuring that the opening and closing actions of the two jaws are carried out synchronously, further improving the stability of the bag clamping device.

[0026] In an optional embodiment, one end of the transmission connecting rod close to the jaw opening push plate is rotatably connected to a first guide wheel.

[0027] Beneficial effect: the first guide wheel is arranged to rotate when the claw push plate abuts against the transmission connecting rod, so as to improve the smoothness of the operation of the bag clamping device.

[0028] In an optional embodiment, the second driving assembly includes:

[0029] A second driving structure is drivingly connected to the two opening cantilevers, and the second driving structure is used to drive the two opening cantilevers to move away from each other;

[0030] The second elastic member is arranged between the two opening cantilevers, and is used for deforming when the two opening cantilevers are driven to move relatively apart, and driving the two opening cantilevers to move relatively close together when the deformation is restored.

[0031] Beneficial effect: The deformation reset of the second elastic member drives the two opening cantilevers to reset to a relatively close state, avoiding resetting the driving member to reset the opening cantilevers, simplifying the structure of the bag clamping device and reducing energy consumption.

[0032] In an optional implementation, the second driving structure includes:

[0033] A second driving member includes a second fixed portion and a second movable portion that moves parallel to the second fixed portion;

[0034] An open-arm arrow plate, provided at the second movable portion, the open-arm arrow plate having two oblique side plates;

[0035] Two open-arm slides are respectively fixedly connected to the two open cantilevers, and the end of each open-arm slide facing the open-arm arrow plate can abut against the inclined side plate.

[0036] Beneficial effect: the second driving member drives the open-arm arrow plate to drive the two open-arm slides to transmit power, and cooperates with the two second elastic members to realize the two open-arm slides to be relatively far away or relatively close, while ensuring that the two open-arm slides move synchronously, further improving the stability of the bag clamping device.

[0037] In an optional embodiment, the open-arm slide is rotatably connected to the end of the open-arm arrow board with a second guide wheel.

[0038] Beneficial effect: the second guide wheel is arranged to rotate when the open-arm arrow plate abuts against the open-arm slide plate, so as to improve the smoothness of the operation of the bag clamping device.

[0039] In an optional embodiment, the second driving assembly further includes:

[0040] A slide rail is arranged along the direction of relative movement of the two opening cantilevers;

[0041] A slider is slidably connected to the slide rail, and the slider is fixedly connected to the open cantilever.

[0042] Beneficial effect: A sliding matching assembly of a slide rail and a slide block is provided to limit the movement of the two open cantilevers, thereby improving the smoothness of the relative movement of the two open cantilevers. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic structural diagram of a bag clamping device provided by the present invention in an initial state;

[0045] Figure 2 A schematic diagram of the structure of a bag clamping device provided by the present invention when two opening cantilevers are relatively far away;

[0046] Figure 3 A schematic diagram of the structure of a bag clamping device provided by the present invention when two opening cantilevers are relatively far apart and two clamping claws are open;

[0047] Figure 4 for Figure 3 A is a partial enlarged schematic diagram;

[0048] Figure 5 A schematic diagram of the structure of a bag clamping device provided by the present invention clamping an empty packaging bag;

[0049] Figure 6 A schematic diagram of the structure of a bag clamping device provided by the present invention clamping a packaging bag and opening it;

[0050] Figure 7 A schematic diagram of the structure of a bag clamping device provided by the present invention clamping a packaging bag and closing its opening;

[0051] Figure 8 A schematic structural diagram of a bag clamping device provided by the present invention for loosening a packaging bag containing parts.

[0052] Description of reference numerals:

[0053] 1. Open cantilever;

[0054] 2. Clamping claw; 201. Fixed claw body; 202. Movable claw body; 203. Magnetic attraction piece; 204. Magnetic attraction matching piece; 205. Protective rubber pad;

[0055] 3. a first elastic member;

[0056] 4. A first driving member;

[0057] 5. Open claw push plate; 501. Push end;

[0058] 6. Transmission connecting rod;

[0059] 7. Driving connecting rod;

[0060] 8. The first guide wheel;

[0061] 9. A second elastic member;

[0062] 10. A second driving member;

[0063] 11. Open arm arrow board; 1101. Oblique side board;

[0064] 12. Open-arm slide;

[0065] 13. Second guide wheel;

[0066] 14. Slide rail;

[0067] 15. Slider;

[0068] 16. Install the main panel;

[0069] 17. First mounting plate;

[0070] 18. Second mounting plate;

[0071] 19. Avoidance slot;

[0072] 100. packaging bag; 1001. opening;

[0073] 200. Parts. DETAILED DESCRIPTION

[0074] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0075] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0078] Combine the following Figure 1-Figure 8 , describing an embodiment of the present invention.

[0079] According to an embodiment of the present invention, a bag clamping device is provided, such as Figure 1 , Figure 2 , Figure 3 As shown, it comprises: two opening cantilevers 1 arranged opposite to each other, two clamping jaws 2, a first driving assembly and a second driving assembly.

[0080] The two clamping jaws 2 are respectively arranged on the two opening cantilevers 1, and the two clamping jaws 2 are used to clamp the two ends of the opening 1001 on the packaging bag 100; the first driving component is connected to the two clamping jaws 2 in a transmission manner, and the first driving component is used to drive the two clamping jaws 2 to open at the same time to loosen the packaging bag 100, or to drive the two clamping jaws 2 to close at the same time to clamp the packaging bag 100; the second driving component is connected to the two opening cantilevers 1 in a transmission manner, and the second driving component is used to drive the two opening cantilevers 1 to be relatively close to or relatively far away from each other; when the two clamping jaws 2 clamp the packaging bag 100, the two opening cantilevers 1 can be driven to be relatively close to open the opening 1001 of the packaging bag 100, or can be driven to be relatively far away to close the opening 1001 of the packaging bag 100.

[0081] In the above embodiment, the two clamping jaws 2 are driven to open or close simultaneously by the first driving component to loosen or clamp the packaging bag 100, thereby performing the operations of clamping the empty packaging bag and loosening the packaging bag containing the parts 200 on the bag clamping device; when the two clamping jaws 2 clamp the packaging bag 100, the two opening cantilevers 1 are driven to be relatively close to each other by the second driving component to open the opening 1001 of the packaging bag 100, so that the parts 200 can be loaded into the packaging bag 100, and the two opening cantilevers 1 are driven to be relatively far apart by the second driving component to close the opening 1001 of the packaging bag 100, so that the packaging bag 100 containing the parts 200 can be closed; in this way, the automated operation of the bag clamping device replaces part of the manual operation during the parts bagging operation, thereby improving the bagging efficiency and the packaging efficiency of the parts.

[0082] Specifically, the bag clamping device is provided with a mounting main plate 16 as a mounting base, a first mounting plate 17 is provided on the mounting main plate 16, and two opening cantilevers 1 arranged opposite to each other are movably mounted on the first mounting plate 17; the opening cantilevers 1 are bent in a "Z" shape, and the two opening cantilevers 1 arranged opposite to each other are symmetrically arranged, and two relatively close parts of the two opening cantilevers 1 are transmission-connected with the first driving assembly, and two relatively far parts of the two opening cantilevers 1 are respectively provided with a clamping jaw 2 at their ends; the clamping jaw 2 has a fixed part and a movable part that can move relative to the fixed part, and the second driving assembly is transmission-connected with the movable parts of the two clamping jaws 2 to realize the opening and closing of the clamping jaws 2;

[0083] Furthermore, when the two clamping jaws 2 clamp the two ends of the opening 1001 on the packaging bag 100, and the opening cantilever 1 is relatively far away from each other, that is, Figure 5 At this time, the two opening cantilevers 1 are relatively close to each other through the driving action of the second driving component, which can drive the two ends of the opening 1001 on the packaging bag 100 to approach each other, and the opening 1001 of the packaging bag 100 is bent and can be opened naturally, that is, Figure 6 On the contrary, the driving action of the second driving assembly causes the two opening cantilevers 1 to move away from each other, which can drive the two ends of the opening 1001 on the packaging bag 100 to move away from each other, and the opening 1001 of the packaging bag 100 is straightened and can be closed naturally, that is, Figure 7 shown.

[0084] It can be understood that in this embodiment, using the second driving assembly to drive the two opening cantilevers 1 to be relatively close or relatively far away includes at least two implementations. As one implementation, one of the two opening cantilevers 1 is fixed, and the second driving assembly drives the other opening cantilever 1 to move, so that the two opening cantilevers 1 are relatively close or relatively far away; as another implementation, both opening cantilevers 1 are movably arranged, and the second driving assembly drives the two opening cantilevers 1 to move at the same time, so that the two opening cantilevers 1 are relatively close or relatively far away.

[0085] Furthermore, the present embodiment does not limit the specific structural form of the first drive assembly and the second drive assembly. The first drive assembly and the second drive assembly can be configured as a numerical control drive structure, a mechanical drive structure, etc.

[0086] In some embodiments, Figure 3 , Figure 4 As shown, the clamping jaw 2 includes a fixed jaw body 201 and a movable jaw body 202 .

[0087] The fixed claw body 201 is fixedly connected to the end of the opening cantilever 1; the movable claw body 202 is rotationally connected to the end of the opening cantilever 1 or rotationally connected to the fixed claw body 201, and the movable claw body 202 is transmission-connected to the second driving assembly, and can be driven away from the fixed claw body 201 to loosen the packaging bag 100, or can be driven close to the fixed claw body 201 to clamp the packaging bag 100.

[0088] In the above embodiment, the clamping jaw 2 is configured as a fixed jaw body 201 and a movable jaw body 202 that can be driven away from or close to the fixed jaw body 201, thereby achieving the operations of clamping an empty packaging bag and releasing a packaging bag containing parts 200, with a simple structure and stable clamping.

[0089] Specifically, the fixed claw body 201 is fixedly connected to the end of the open cantilever 1 through screws and mounting holes, and the movable claw body 202 has a right-angled mounting portion, one side of which is hinged to the end of the open cantilever 1 and the other side is transmission-connected to the second drive assembly.

[0090] In some embodiments, Figure 3 , Figure 4 As shown, one of the fixed claw body 201 and the movable claw body 202 is provided with a magnetic attraction member 203, and the other of the fixed claw body 201 and the movable claw body 202 is provided with a magnetic attraction matching member 204, and the magnetic attraction member 203 and the magnetic attraction matching member 204 are arranged in corresponding positions.

[0091] In the above embodiment, the clamping force of the clamping jaw 2 when clamping the packaging bag 100 is improved by the magnetic attraction cooperation between the magnetic attraction member 203 and the magnetic attraction cooperation member 204 , thereby improving the stability of the clamping jaw 2 clamping the packaging bag 100 .

[0092] Specifically, the fixed claw body 201 is provided with a magnetic component 203, and the magnetic component 203 is arranged on the surface where the fixed claw body 201 contacts with the movable claw body 202. The movable claw body 202 is provided with a magnetic matching component 204. The magnetic matching component 204 fixes the claw body 201 away from the back side of the fixed claw body 201 to avoid the magnetic attraction force between the magnetic component 203 and the magnetic matching component 204 being too strong to damage the packaging bag 100; at the same time, a protective rubber pad 205 is arranged on the surface where the movable claw body 202 contacts with the fixed claw body 201 to ensure that the packaging bag will not be damaged by clamping, and can reduce the vibration of the opening claw, thereby improving the operating stability of the bag clamping device.

[0093] Further, one of the magnetic attraction component 203 and the magnetic attraction matching component 204 is set as a magnet, and the other is set as an iron block; or both the magnetic attraction component 203 and the magnetic attraction matching component 204 are set as magnets.

[0094] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, the first driving assembly includes: a first driving structure and a first elastic member 3 .

[0095] The first driving structure is transmission-connected to the movable claw body 202, and the first driving structure is used to drive the movable claw body 202 away from the fixed claw body 201; the first elastic member 3 is arranged between the first driving structure and the open cantilever 1, and the first elastic member 3 is used to deform when the movable claw body 202 is driven away from the fixed claw body 201, and drive the movable claw body 202 to approach the fixed claw body 201 when the deformation is restored.

[0096] In the above embodiment, the first elastic member 3 is used to reset its deformation to drive the movable claw body 202 close to the fixed claw body 201, so that the clamping jaw 2 is reset to the clamping state, avoiding the need to re-set the driving member to reset the movable claw body 202, simplifying the structure of the bag clamping device and reducing energy consumption.

[0097] Specifically, when the movable claw body 202 is driven by the first driving structure to move away from the fixed claw body 201, the first elastic member 3 is deformed and accumulates force; when the driving of the movable claw body 202 by the first driving structure disappears, the elastic potential energy of the first elastic member 3 is used to deform and reset the movable claw body 202, so as to realize the reset of the clamping jaw 2 to the clamping state.

[0098] Furthermore, the first elastic member 3 is configured as a spring, an elastic belt or the like.

[0099] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, the first driving structure includes: a first driving member 4, a jaw push plate 5, two transmission connecting rods 6 and two driving connecting rods 7.

[0100] The first driving member 4 includes a first fixed portion and a first movable portion that moves parallel to the first fixed portion; the opening claw push plate 5 is arranged on the first movable portion, and the opening claw push plate 5 has two pushing ends 501; two groups of connecting rod groups are respectively arranged on the two opening cantilevers 1, and each group of connecting rod groups includes a transmission connecting rod 6 and a driving connecting rod 7; the middle part of the transmission connecting rod 6 is rotatably connected with the opening cantilever 1, and the end of the transmission connecting rod 6 close to the opening claw push plate 5 can abut against the pushing end 501; one end of the driving connecting rod 7 is rotatably connected with the other end of the transmission connecting rod 6 away from the claw push plate 5, and the other end of the driving connecting rod 7 is rotatably connected with the movable claw body 202; the first elastic member 3 is arranged between the side of the transmission connecting rod 6 away from the claw push plate 5 and the opening cantilever 1.

[0101] In the above embodiment, the jaw push plate 5 is driven by the first driving member 4 to drive the two transmission connecting rods 6 and the two driving connecting rods 7 to transmit power, and cooperate with the two first elastic members 3 to realize the clamping or closing of the two jaws 2 while ensuring that the opening and closing actions of the two jaws 2 are performed synchronously, thereby further improving the stability of the bag clamping device.

[0102] Specifically, the first fixed portion of the first driving member 4 is installed at the bottom of the mounting plate 16. When the first movable portion of the first driving member 4 pushes the jaw push plate 5 outward, the two pushing ends 501 of the jaw push plate 5 respectively abut against the ends of the two transmission connecting rods 6 close to the jaw push plate 5 and transmit force, so that the transmission connecting rod 6 rotates and pulls the driving connecting rod 7, so that the driving connecting rod 7 pulls the movable claw body 202 away from the fixed claw body 201 to move, thereby opening the clamping claw 2. At this time, the first elastic member 3 is driven by the transmission connecting rod 6 is stretched due to the movement away from the side of the opening cantilever 1 away from the claw push plate 5; when the first movable part of the first driving member 4 retracts inwardly to drive the claw push plate 5 to retract, the abutment effect of the pushing end 501 on the end of the transmission connecting rod 6 close to the claw push plate 5 disappears, and the first elastic member 3 returns to its original position and retracts to pull the transmission connecting rod 6 away from the side of the claw push plate 5, and the transmission connecting rod 6 drives the driving connecting rod 7 to move, so that the driving connecting rod 7 pushes the movable claw body 202 to move close to the fixed claw body 201, thereby closing the clamping jaw 2.

[0103] Furthermore, the first driving member 4 is configured as a cylinder, a hydraulic cylinder or the like.

[0104] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, one end of the transmission connecting rod 6 close to the claw push plate 5 is rotatably connected to the first guide wheel 8.

[0105] In the above embodiment, the first guide wheel 8 is arranged to rotate when the jaw push plate 5 abuts against the transmission connecting rod 6, so as to improve the smoothness of the operation of the bag clamping device.

[0106] Specifically, two first guide wheels 8 are provided, which are rotatably connected to the ends of the two transmission connecting rods 6 respectively close to the claw opening push plate 5.

[0107] Furthermore, the first guide wheel 8 is protrudingly disposed on the side of the transmission connecting rod 6 so as to abut against the pushing end 501 of the jaw push plate 5 .

[0108] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, the second driving assembly includes: a second driving structure and a second elastic member 9.

[0109] The second driving structure is transmission-connected to the two opening cantilevers 1, and is used to drive the two opening cantilevers 1 to move relatively apart; the second elastic member 9 is disposed between the two opening cantilevers 1, and is used to deform when the two opening cantilevers 1 are driven to move relatively apart, and to drive the two opening cantilevers 1 to move relatively close together when the deformation is restored.

[0110] In the above embodiment, the deformation and restoration of the second elastic member 9 is used to drive the two opening cantilevers 1 to be restored to a relatively close state, thereby avoiding resetting the driving member to restore the opening cantilever 1, simplifying the structure of the bag clamping device and reducing energy consumption.

[0111] Specifically, when the two opening cantilevers 1 are driven relatively away by the second driving structure, the second elastic member 9 is deformed and accumulates force; when the driving of the second driving structure on the opening cantilever 1 disappears, the elastic potential energy deformation reset of the second elastic member 9 drives the two opening cantilevers 1 to reset, so as to realize the reset of the two opening cantilevers 1 to a relatively close state.

[0112] Furthermore, the second elastic member 9 is configured as a spring, an elastic belt or the like.

[0113] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, the second driving structure includes: a second driving member 10, an open-arm arrow plate 11 and two open-arm slide plates 12.

[0114] The second driving member 10 includes a second fixed portion and a second movable portion that moves parallel to the second fixed portion; the open-arm arrow plate 11 is arranged on the second movable portion, and the open-arm arrow plate 11 has two inclined side plates 1101; the two open-arm slides 12 are respectively fixedly connected to the two open cantilevers 1, and the end of each open-arm slide 12 facing the open-arm arrow plate 11 can abut against the inclined side plate 1101.

[0115] In the above embodiment, the open-arm arrow plate 11 is driven by the second driving member 10 to drive the two open-arm slides 12 to transmit power, and cooperate with the two second elastic members 9 to realize the two open-arm slides 12 to move relatively far away or relatively close, while ensuring that the movement of the two open-arm slides 12 is synchronized, further improving the stability of the bag clamping device.

[0116] Specifically, a second mounting plate 18 is also provided on the mounting main plate 16, and the second fixed portion of the second driving member 10 is installed on the side of the second mounting plate 18. When the second movable portion of the second driving member 10 pushes the open-arm arrow plate 11 downward, the two inclined side plates 1101 of the open-arm arrow plate 11 respectively abut against the ends of the two open-arm slides 12 toward the open-arm arrow plate 11 and transmit force, so that the two open-arm slides 12 are relatively separated and drive the two open cantilevers 1 to be relatively separated. At this time, the second elastic member 9 is stretched by the two open cantilevers 1 being relatively separated; when the second movable portion of the second driving member 10 retracts upward to drive the open-arm arrow plate 11 to move upward, the abutting effect of the inclined side plate 1101 on the end of the open-arm slide 12 toward the open-arm arrow plate 11 disappears, and the second elastic member 9 returns to its original position and retracts to pull the two open cantilevers 1 relatively close.

[0117] Furthermore, the second driving member 10 is configured as a cylinder, a hydraulic cylinder or the like.

[0118] Furthermore, an avoidance groove 19 is provided in the middle of the mounting main plate 16 and the first mounting plate 17 thereon, for avoiding the open-arm arrow plate 11 driven downward by the second driving member 10 .

[0119] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, the end of the open-arm slide 12 toward the open-arm arrow plate 11 is rotatably connected to a second guide wheel 13 .

[0120] In the above embodiment, the second guide wheel 13 is arranged to rotate when the open-arm arrow plate 11 abuts against the open-arm slide plate 12, so as to improve the smoothness of the operation of the bag clamping device.

[0121] Specifically, two second guide wheels 13 are provided, which are rotatably connected to the ends of the two open-arm slides 12 respectively close to the open-arm arrow plates 11 .

[0122] Furthermore, the second guide wheel 13 is configured as a guide bearing.

[0123] In some embodiments, Figure 1 , Figure 2 , Figure 3 As shown, the second driving assembly further includes: a slide rail 14 and a slider 15 .

[0124] The slide rail 14 is arranged along the direction of relative movement of the two opening cantilevers 1 ; the slider 15 is slidably connected to the slide rail 14 , and the slider 15 is fixedly connected to the opening cantilever 1 .

[0125] In the above embodiment, a sliding matching assembly of the slide rail 14 and the slider 15 is provided to limit the movement of the two open cantilevers 1 and improve the smoothness of the relative movement of the two open cantilevers 1 .

[0126] Specifically, the slide rails 14 are fixedly mounted on the first mounting plate 17 ; four slide rails 14 are symmetrically arranged in pairs, and each open cantilever 1 is fixedly connected to two sliders 15 to be slidably connected to the two corresponding slide rails 14 .

[0127] Furthermore, an anti-collision pad is provided between the two slide rails 14 located on one side of the opening cantilever 1 , and the anti-collision pad is provided corresponding to the side position of the opening cantilever 1 .

[0128] The operation steps of the bag clamping device provided in this embodiment are as follows:

[0129] S1: The bag clamping device is in the initial state, at which the first elastic member 3 and the second elastic member 9 are both in an unstretched state, i.e. Figure 1 As shown;

[0130] S2: The second movable part of the second driving member 10 pushes the open arm arrow plate 11 downward, and the two inclined side plates 1101 of the open arm arrow plate 11 respectively abut against the two open arm slide plates 12 to drive the two open cantilevers 1 to move relatively away from each other. At this time, the second elastic member 9 is stretched, that is, Figure 2 As shown;

[0131] S3: The first movable portion of the first driving member 4 pushes the jaw opening push plate 5 outward, and the two pushing ends 501 of the jaw opening push plate 5 respectively abut against the two transmission connecting rods 6 to drive the transmission connecting rods 6 to rotate and pull the driving connecting rods 7. The driving connecting rods 7 pull the movable jaw body 202 away from the fixed jaw body 201 to open the clamping jaws 2. At this time, the first elastic member 3 is stretched, that is, Figure 3 As shown;

[0132] At this point, the bag clamping device enters the working state and is ready to clamp the empty packaging bag 100;

[0133] S4: Place the empty packaging bag 100 between the two clamping jaws by using the bag loading device; the first movable portion of the first driving member 4 retracts inwards to drive the jaw push plate 5 to retract, and the abutment effect of the pushing end 501 on the transmission connecting rod 6 disappears, and the first elastic member 3 returns to its original position and retracts to pull the transmission connecting rod 6 to drive the driving connecting rod 7 to move, so that the driving connecting rod 7 pushes the movable claw body 202 to move close to the fixed claw body 201, so that the clamping jaws 2 close and clamp the two ends of the opening 1001 on the packaging bag 100, that is, Figure 5 As shown;

[0134] S5: The second movable portion of the second driving member 10 retracts upward to drive the open arm arrow plate 11 to move upward, and the abutment effect of the inclined side plate 1101 on the open arm slide plate 12 disappears. The second elastic member 9 returns to its original position and retracts to pull the two open cantilever arms 1 closer to each other, so that the opening 1001 of the packaging bag 100 is bent and opened, and the parts 200 are loaded into the packaging bag 100 by using the loading device, that is, Figure 6 As shown;

[0135] S6: Repeat step S2 to move the two opening cantilevers 1 relatively away from each other, so as to drive the two clamping jaws 2 to move relatively away from each other so that the opening 1001 of the packaging bag 100 is straightened and closed, and the packaging bag 100 containing the parts 200 is sealed by the sealing device. Figure 7 As shown;

[0136] S7: Repeat step S3 to open the clamping jaws 2, release the packaging bag 100 containing the parts 200, and transfer it to the next station by using the material transport device, as shown in FIG. Figure 8 As shown;

[0137] At this point, one operation of the bag clamping device is completed, and the bag clamping device enters the working state again and is ready to clamp the next empty packaging bag 100; repeating steps S4 to S7, multiple parts 200 can be packaged in sequence;

[0138] After completing the packaging operation of the batch parts 200, the bag clamping device needs to be reset to the initial state so that the first elastic member 3 and the second elastic member 9 are in an unstretched state again, avoiding the second elastic member 9 from being fatigued and damaged due to long-term tension. The specific operation is: first repeat step S4 to reset and retract the first elastic member 3 and close the clamping jaws 2; then the second movable part of the second driving member 10 retracts upward to drive the open arm arrow plate 11 to move upward, and the abutment effect of the inclined side plate 1101 on the open arm slide plate 12 disappears, and the second elastic member 9 resets and retracts to pull the two open cantilevers 1 relatively close to complete the reset operation of the bag clamping device.

[0139] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A bag clamping device, characterized in that: include: Two opening cantilevers (1) arranged opposite to each other; Two clamping claws (2), respectively disposed on the two opening cantilevers (1), the two clamping claws (2) being used to clamp two ends of the opening (1001) on the packaging bag (100); a first driving assembly, which is in driving connection with the two clamping jaws (2), and is used for driving the two clamping jaws (2) to open simultaneously to release the packaging bag (100), or for driving the two clamping jaws (2) to close simultaneously to clamp the packaging bag (100); A second driving assembly is drivingly connected to the two opening cantilevers (1), and the second driving assembly is used to drive the two opening cantilevers (1) to move relatively closer or relatively farther away; When the two clamping jaws (2) clamp the packaging bag (100), the two opening cantilevers (1) can be driven relatively close to each other so that the opening (1001) of the packaging bag (100) is opened, or can be driven relatively far apart so that the opening (1001) of the packaging bag (100) is closed.

2. The bag clamping device according to claim 1, characterized in that: The clamping jaw (2) comprises: A fixed claw body (201) fixedly connected to the end of the open cantilever (1); A movable claw body (202) is rotatably connected to the end of the opening cantilever (1) or is rotatably connected to the fixed claw body (201); the movable claw body (202) is drivingly connected to the second driving assembly and can be driven away from the fixed claw body (201) to release the packaging bag (100), or can be driven close to the fixed claw body (201) to clamp the packaging bag (100).

3. The bag clamping device according to claim 2, characterized in that: One of the fixed claw body (201) and the movable claw body (202) is provided with a magnetic attraction component (203), and the other of the fixed claw body (201) and the movable claw body (202) is provided with a magnetic attraction matching component (204), and the magnetic attraction component (203) and the magnetic attraction matching component (204) are arranged in corresponding positions.

4. The bag clamping device according to claim 2 or 3, characterized in that: The first driving assembly comprises: A first driving structure, drivingly connected to the movable claw body (202), the first driving structure being used to drive the movable claw body (202) away from the fixed claw body (201); A first elastic member (3) is disposed between the first driving structure and the open cantilever (1), the first elastic member (3) being used to deform when the movable claw body (202) is driven away from the fixed claw body (201), and to drive the movable claw body (202) to approach the fixed claw body (201) when the deformation is restored.

5. The bag clamping device according to claim 4, characterized in that: The first driving structure comprises: A first driving member (4) comprises a first fixed portion and a first movable portion which moves parallel to the first fixed portion; An opening claw push plate (5) is arranged on the first movable part, and the opening claw push plate (5) has two pushing ends (501); Two groups of connecting rod groups are respectively arranged on the two open cantilevers (1), and each group of the connecting rod groups includes a transmission connecting rod (6) and a driving connecting rod (7); the middle part of the transmission connecting rod (6) is rotatably connected to the open cantilever (1), and the end of the transmission connecting rod (6) close to the open claw push plate (5) can abut against the pushing end (501); one end of the driving connecting rod (7) is rotatably connected to the other end of the transmission connecting rod (6) away from the open claw push plate (5), and the other end of the driving connecting rod (7) is rotatably connected to the movable claw body (202); the first elastic member (3) is arranged between the side of the transmission connecting rod (6) away from the open claw push plate (5) and the open cantilever (1).

6. The bag clamping device according to claim 5, characterized in that: One end of the transmission connecting rod (6) close to the claw opening push plate (5) is rotatably connected to a first guide wheel (8).

7. The bag clamping device according to any one of claims 1 to 3, characterized in that: The second driving assembly comprises: A second driving structure is drivingly connected to the two opening cantilevers (1), the second driving structure being used to drive the two opening cantilevers (1) to move relatively away from each other; The second elastic member (9) is arranged between the two opening cantilevers (1), and is used to deform when the two opening cantilevers (1) are driven to move relatively apart, and to drive the two opening cantilevers (1) to move relatively close together when the deformation is restored.

8. The bag clamping device according to claim 7, characterized in that: The second driving structure comprises: A second driving member (10) comprises a second fixed portion and a second movable portion which moves parallel to the second fixed portion; An open-arm arrow plate (11), arranged on the second movable portion, the open-arm arrow plate (11) having two inclined side plates (1101); The two open-arm slides (12) are respectively fixedly connected to the two open cantilevers (1), and the end of each open-arm slide (12) facing the open-arm arrow plate (11) can abut against the inclined side plate (1101).

9. The bag clamping device according to claim 8, characterized in that: The end of the open-arm slide plate (12) rotatably connected to the open-arm arrow plate (11) is connected to a second guide wheel (13).

10. The bag clamping device according to claim 8, characterized in that: The second drive assembly further comprises: A slide rail (14) is arranged along the direction of relative movement of the two opening cantilevers (1); A slider (15) is slidably connected to the slide rail (14), and the slider (15) is fixedly connected to the opening cantilever (1).

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