Mechanical arm device for feeding bags

By designing a robotic arm device that includes a fixing frame, a drive assembly, a finger clamp assembly, and a blade insertion assembly, the problem that existing devices cannot adapt to packaging bags of different sizes and shapes is solved, and the device can effectively clamp and open M-shaped bag openings to ensure packaging quality.

CN223658552UActive Publication Date: 2025-12-12WUXI INSTITUTE OF TECHNOLOGY
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Patent Information

Application Number
CN202423086874.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-12
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing robotic arm devices cannot adapt to packaging bags of different sizes and shapes. In particular, the folded edge of the M-shaped bag cannot be fully opened and then restored, affecting the packaging quality.

Method used

A robotic arm device including a fixed frame, a drive assembly, a finger clamp assembly, and a blade assembly is designed. The clamping state is detected by a pressure detector to ensure that the bag mouth is clamped tightly and can adapt to packaging bags of different shapes and sizes. The blade assembly is used to open the bag mouth, and the tension cylinder tightens the bag mouth to form a shape that adapts to the filling port.

Benefits of technology

It enables the clamping of bag openings for various complex bag shapes, ensuring that the folded edges of the bag opening return to their original shape after being opened, thus preventing filling leakage and improving packaging quality and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging equipment, in particular to a mechanical arm device for feeding bags, which comprises a fixing frame, a driving component, a finger clamp component and a slotting tool component, the fixing frame and the driving component are fixed on a frame, the driving component comprises a driving motor and a driving square shaft, the driving motor is arranged on the frame, the driving square shaft is arranged on the fixing frame, and the finger clamp component is arranged on the slotting tool component. The output end of the driving motor is connected with a driving square shaft, finger clamping assemblies used for clamping a bag opening are symmetrically arranged at the two ends of the driving square shaft, a pressure detector used for detecting the clamping state of a packaging bag is arranged between the two finger clamping assemblies, and a slotting tool assembly used for opening the bag is arranged on the portion, located between the finger clamping assemblies, of the driving square shaft. The bag opening device has the beneficial effects that the finger clamping assemblies are arranged, so that bag openings of various complex bag types can be clamped, and the folded edges of the bag openings can be restored after being completely expanded; the device has good flexibility and adaptability and can adapt to packaging bags of different sizes and shapes.
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Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field, especially a mechanical arm device for bagging. BACKGROUND

[0002] With the rapid development of industrial automation, the packaging machine as the core equipment of product packaging, its automation degree directly influences production efficiency and packaging quality. In the automatic packaging process, the role of mechanical arm is increasingly prominent, they can automatically complete the operation such as grabbing, filling, significantly improve the packaging speed and accuracy.

[0003] However, the traditional device function is single, mainly applicable to a character type packing bag, for M bag and other complex bag type, since the bag mouth both sides have the flange, the traditional device cannot guarantee that the bag mouth flange can restore after being completely opened, seriously influence packaging quality. Modern packaging industry puts forward higher requirements to mechanical arm, not only realizes the basic packaging function, but also needs to have flexibility and adaptability to adapt to different sizes and shapes of packaging bag. SUMMARY

[0004] The utility model aims at providing a mechanical arm device for bagging, solve the technical problem that the existing device cannot have flexibility and adaptability to adapt to different sizes and shapes of packaging bag.

[0005] To solve the above technical problem, the utility model provides the following technical scheme: a mechanical arm device for bagging, it includes fixed frame, drive assembly, finger clamp component and knife blade component, fixed frame and drive assembly are fixed on the frame, drive assembly includes drive motor and drive square shaft, drive motor is arranged on the frame, drive square shaft is arranged on the fixed frame, drive motor output end connects drive square shaft, drive square shaft both ends symmetry sets up finger clamp component for clamping the bag mouth between, two finger clamp components are arranged between pressure detector for detecting the clamping state of packaging bag, drive square shaft and be located between finger clamp component set up knife blade component for bagging.

[0006] As a preferred scheme of the utility model, a mechanical arm device for bagging, wherein: the fixed frame includes the first support and the second support perpendicularly arranged at both ends of the first support, the drive square shaft is connected between the two second supports, not less than one Y-axis adjuster is arranged on the first support, and the Z-axis adjuster is arranged at the end of the second support away from the first support.

[0007] As a preferred scheme of the utility model, a mechanical arm device for bagging, wherein: the drive assembly further includes a drive connecting rod, a first crank is connected between the drive connecting rod and the drive motor, and a second crank is connected between the drive connecting rod and the drive square shaft.

[0008] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: finger clamp component includes finger clamp fixed shaft, finger clamp connecting rod, finger clamp fixed plate and finger clamp plate, finger clamp fixed shaft is connected in driving square shaft one end, second crank is arranged between finger clamp fixed shaft and second support, finger clamp connecting rod two ends are respectively connected finger clamp fixed shaft and finger clamp fixed plate, finger clamp fixed plate end is provided for clamping the finger clamp plate of bag mouth.

[0009] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: finger clamp plate includes upper finger clamp plate and lower finger clamp plate, upper finger clamp plate one end engages and connects lower finger clamp plate, the gear end of upper finger clamp plate and lower finger clamp plate is connected finger clamp fixed plate end, finger clamp fixed plate is provided with finger clamp cylinder, and finger clamp cylinder telescopic end connects upper finger clamp plate.

[0010] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: insert knife component includes a group of insert knife connecting rod, a group of insert knife, insert knife shaft and a group of first connecting rod, a group of first connecting rod is symmetrically arranged and is fixedly sleeved on driving square shaft, and insert knife connecting rod is arranged at first connecting rod bottom end, a group of insert knife connecting rod is connected with insert knife shaft, and insert knife shaft two ends are symmetrically provided with insert knife.

[0011] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: insert knife component further includes cylinder connecting seat, insert knife cylinder and the first fixed plate of fixed insert knife cylinder, and first fixed plate is arranged between a group of insert knife connecting rod and is close to insert knife cylinder, and cylinder connecting seat is arranged at the bottom of driving square shaft and is located between a group of first connecting rod, and cylinder connecting seat bottom is connected with insert knife cylinder, and insert knife cylinder telescopic end is connected with connecting head that can drive insert knife shaft rotation, and connecting head is sleeved on insert knife shaft.

[0012] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: first fixed plate is provided with stretch crank on the side away from insert knife cylinder, and stretch crank two ends are respectively provided with stretch connecting rod for pulling finger clamp connecting rod rotation.

[0013] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: the top of insert knife connecting rod of one side is provided with stretch cylinder for rotating stretch crank, and stretch cylinder telescopic end is connected with one end of stretch crank, so that stretch crank rotates around stretch crank center, and driving square shaft is provided with limiting piece between stretch cylinder telescopic end end and insert knife connecting rod.

[0014] As a preferred scheme of the utility model discloses a kind of mechanical arm device for bagging, wherein: pressure detector for detecting bag mouth clamping state is arranged between stretch cylinder telescopic end and stretch crank.

[0015] The utility model discloses a mechanical arm device for bagging has the beneficial effects that: the utility model discloses through setting up the finger clamping plate, can the bag mouth of various complex bag type clamping, guarantee bag mouth hem in completely open after can restore, when working, the cutter of the device can be inserted into the packaging bag, then through the stretching cylinder and tightly draw the packaging bag, guarantee its formation adapts the shape of filling port, through setting up the pressure detector, can effectively avoid the filling leakage problem of the problem such as the packaging bag not clamping or clamping not firm, the device has good flexibility and adaptability, can adapt to the packaging bag of different size and shape. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment description, obviously, the drawing in the following description is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Among them:

[0017] Figure 1 It is the side view of the device in the utility model.

[0018] Figure 2 It is the front view of the device in the utility model.

[0019] Figure 3 It is the overall schematic view of the device in the utility model.

[0020] Figure 4 It is the finger clamping assembly structure schematic view of the device in the utility model.

[0021] Figure 5 It is the cutter assembly structure schematic view of the device in the utility model.

[0022] Figure 6 It is the cutter schematic view of the device in the utility model. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following will be the specific embodiment of the utility model detailed description with the drawing of the specification.

[0024] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, and the person skilled in the art can make similar generalization without violating the connotation of the utility model, therefore, the utility model is not limited by the following disclosed specific embodiments.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that a specific feature, structure, or characteristic described can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0026] Embodiment 1

[0027] Referring to Figures 1-6 The embodiment provides a mechanical arm device for bagging, which senses whether the finger clamp assembly 3 clamps the bag opening of the M bag through the arrangement of the pressure detector 307, so as to ensure the packaging quality.

[0028] A mechanical arm device for bagging comprises a fixing frame 1, a driving assembly 2, a finger clamp assembly 3 and a knife inserting assembly 4, the fixing frame 1 and the driving assembly 2 are fixed on a rack, the driving assembly 2 comprises a driving motor 201 and a driving square shaft 205, the driving motor 201 is fixedly installed on the rack of a packaging machine, the driving square shaft 205 is arranged on the fixing frame 1, the output end of the driving motor 201 is connected with the driving square shaft 205, the driving motor 201 drives the driving square shaft 205 to rotate, the driving square shaft 205 is symmetrically provided with the finger clamp assembly 3 for clamping the bag opening at both ends, the finger clamp assembly 3 can clamp bag openings of different shapes and is suitable for packaging bags of various sizes, the pressure detector 307 for detecting the clamping state of the packaging bag is arranged between the two finger clamp assemblies 3, the knife inserting assembly 4 for supporting the bag is arranged on the driving square shaft 205 and between the finger clamp assemblies 3, after the finger clamp assembly 3 acts, if the pressure detector 307 does not send a signal, it proves that the finger clamp assembly 3 does not clamp the packaging bag tightly, the system alarms; after the alarm is removed, the clamping action is restarted, the pressure detector 307 sends a signal, and the next process is performed.

[0029] Before the packaging bag is conveyed by the last process, the bag opening is opened by the suction cup of the bag opening mechanism sucking the bag wall, the bag opening of the packaging bag faces the device, the finger clamp assembly 3 clamps the M-shaped folded edge, the knife inserting assembly 4 is inserted into the bag, and after the suction cup is removed, the bag opening will not be deformed.

[0030] Specifically, the fixing frame 1 comprises a first support 101 and a second support 102 arranged vertically downward at both ends of the first support 101, as Figure 1 The driving square shaft 205 is rotatably connected between the two second supports 102, not less than one Y-axis adjuster 103 is arranged on the first support 101, a Z-axis adjuster 104 is arranged at the end of the second support 102 away from the first support 101, and the Y-axis adjuster 103 and the Z-axis adjuster 104 can conveniently adjust the spatial position of the device on the packaging machine.

[0031] Further, the driving assembly 2 further comprises a driving link 203, the first crank 202 is connected between the driving link 203 and the driving motor 201, the second crank 204 is connected between the driving link 203 and the driving square shaft 205, the driving motor 201 is started to drive the first crank 202 to drive the driving link 203, and the driving link 203 drives the driving square shaft 205 to rotate through the second crank 204.

[0032] Specifically, the finger clamp assembly 3 comprises a finger clamp fixing shaft 301, a finger clamp link 302, a finger clamp fixing plate 303 and a finger clamp plate 305, the finger clamp fixing shaft 301 is fixedly connected at one end of the driving square shaft 205, the second crank 204 is arranged between the finger clamp fixing shaft 301 and the second support 102, the finger clamp link 302 is fixedly connected at both ends to the finger clamp fixing shaft 301 and the finger clamp fixing plate 303, the finger clamp link 302 can rotate around the finger clamp fixing shaft 301, and the finger clamp fixing plate 303 is provided at the end with the finger clamp plate 305 for clamping the bag opening.

[0033] Further, the finger clamp plate 305 comprises an upper finger clamp plate 305-1 and a lower finger clamp plate 305-2, one end of the upper finger clamp plate 305-1 is engagedly connected to the lower finger clamp plate 305-2, the gear end of the upper finger clamp plate 305-1 and the lower finger clamp plate 305-2 is rotatably connected to the end of the finger clamp fixing plate 303, the finger clamp cylinder 304 is fixedly arranged on the finger clamp fixing plate 303, the telescopic end of the finger clamp cylinder 304 is fixedly connected to the upper finger clamp plate 305-1, the finger clamp cylinder 304 is started to drive the upper finger clamp plate 305-1 to move, and the lower finger clamp plate 305-2 is driven to move through the gear end, so as to realize the clamping and opening of the finger clamp plate 305.

[0034] Among them, one end of the upper finger clamp plate 305-1 and the lower finger clamp plate 305-2 is gear-shaped.

[0035] Specifically, the knife inserting assembly 4 comprises a group of knife inserting links 401, a group of knives 403, a knife shaft 404 and a group of first links 405, the group of first links 405 are symmetrically arranged and fixedly sleeved on the driving square shaft 205 to fix the position of the entire knife inserting assembly 4, the knife inserting links 401 are arranged at the bottom end of the first links 405, the knife shaft 404 is rotatably connected between the group of knife inserting links 401, and the group of knives 403 are symmetrically fixedly arranged at both ends of the knife shaft 404 to be inserted into the packaging bag and to open the bag opening.

[0036] Among them, one group of the group of knife inserting links 401, the group of knives 403 and the group of first links 405 is not less than two.

[0037] Further, the knife assembly 4 further comprises a cylinder connecting seat 406, a knife cylinder 402 and a first fixing plate 407 for fixing the knife cylinder 402, the first fixing plate 407 is arranged between a group of knife connecting rods 401 and close to the knife cylinder 402, the cylinder connecting seat 406 is arranged at the bottom of the driving square shaft 205 and between a group of first connecting rods 405, the bottom of the cylinder connecting seat 406 is connected with the knife cylinder 402, the telescopic end of the knife cylinder 402 is connected with a connecting head capable of driving the rotation of the knife shaft 404, the connecting head is sleeved on the knife shaft 404, the knife cylinder 402 is started, the telescopic end pushes the connecting head to drive the rotation of the knife shaft 404, so that the knife 403 is inserted into the packaging bag.

[0038] Further, the far side of the first fixing plate 407 from the knife cylinder 402 is rotationally connected with a stretching crank 308, the two ends of the stretching crank 308 are respectively provided with stretching connecting rods 309 for pulling the rotation of the finger clamp connecting rod 302 around the finger clamp fixing shaft 301, when the stretching crank 308 rotates, the two ends thereof pull the rotation of the finger clamp connecting rod 302 around the finger clamp fixing shaft 301, so as to tighten the bag opening of the packaging bag.

[0039] Further, the top of the knife connecting rod 401 on one side is provided with a stretching cylinder 306 for rotating the stretching crank 308, the telescopic end of the stretching cylinder 306 is connected with one end of the stretching crank 308, the stretching cylinder 306 drives the rotation of the stretching crank 308 around the center of the stretching crank 308, the driving square shaft 205 is provided with a limiting piece 310 between the telescopic end of the stretching cylinder 306 and the knife connecting rod 401, which is used for abutting against the telescopic end of the stretching cylinder 306 to prevent the interference of components caused by excessive action.

[0040] Further, the stretching cylinder 306 is provided with a pressure detector 307 between the telescopic end and the stretching crank 308, which is used for detecting the clamping state of the bag opening, when the stretching cylinder 306 acts, the packaging bag is tightened to form a shape suitable for the filling port, at this time, the pressure detector 307 sends a signal, and the action of being sleeved into the filling port can be performed. If the stretching cylinder 306 acts and the pressure detector 307 does not send a signal, it proves that the packaging bag is not clamped and tightened, the system alarms, and the alarm is removed to re-perform the above action.

[0041] In summary, the device in the utility model can accurately, reliably and quickly realize the operation of sleeving the packaging bag into the filling port, and due to the addition of the pressure detector 307, the problem of filling leakage caused by the problems of not clamping or not firmly clamping the packaging bag can be effectively avoided. The packaging bag herein includes a pillow type packaging bag, a woven bag with an M edge, an envelope bag, a kraft paper bag and various packaging bags.

[0042] When working, the finger clamping cylinder 304 is actuated, the finger clamping plate 305 clamps the packaging bag, the suction cup of the bag opening mechanism opens the bag opening of the packaging bag, the knife inserting cylinder 402 is actuated, the knife 403 is inserted into the packaging bag, the bag opening of the packaging bag is opened, the size of the filling opening is met, the stretching cylinder 306 is actuated, the packaging bag is stretched, the shape suitable for the filling opening is formed, the pressure detector 307 sends a signal, the action of sleeving into the filling opening can be performed, if the stretching cylinder 306 is actuated, the pressure detector 307 does not send a signal, it is proved that the finger clamping plate 305 does not clamp the packaging bag tightly, the system alarms, the alarm is removed, and the above-mentioned action is re-performed; the driving motor 201 is actuated, the first crank 202 drives the driving connecting rod 203, the driving connecting rod 203 drives the second crank 204, the second crank 204 drives the driving square shaft 205 to rotate by 90 degrees, after the packaging bag is sleeved into the filling opening, the filling opening clamping plate clamps the packaging bag, the knife 403 is withdrawn from the packaging bag, the finger clamping cylinder 304 is reset, the finger clamping plate 305 is loosened, the stretching cylinder 306 is reset, the driving motor 201 is reset, and one mechanical arm bagging action cycle is completed.

[0043] The parts not particularly mentioned in the above description are all prior art or can be realized by prior art. Moreover, the specific implementation cases described in the utility model are only preferred implementation cases of the utility model, and are not used to limit the implementation scope of the utility model. That is, equivalent changes and modifications made according to the content of the utility model patent range should be regarded as the technical scope of the utility model.

Claims

1. A mechanical arm device for bagging, characterized by: The utility model relates to a bag opening clamping device, including fixed frame (1), drive assembly (2), finger clamp assembly (3) and insert knife assembly (4), fixed frame (1) and drive assembly (2) are fixed on the frame, drive assembly (2) includes drive motor (201) and drive square shaft (205), drive motor (201) is set up on the frame, drive square shaft (205) is set up on fixed frame (1), drive motor (201) output end connects drive square shaft (205), drive square shaft (205) both ends symmetry sets up the finger clamp assembly (3) for clamping bag mouth, two finger clamp assembly (3) between set up the pressure detector (307) for detecting the clamping state of package bag, drive square shaft (205) and be located between finger clamp assembly (3) set up the insert knife assembly (4) for bagging.

2. The robotic arm apparatus for bagging according to claim 1, wherein: Fixed frame (1) includes first support (101) and the second support (102) vertically arranged at both ends of first support (101), two second supports (102) are connected drive square shaft (205), set up not less than one Y axis adjuster (103) on first support (101), Z axis adjuster (104) is set up at the end away from first support (101) of second support (102).

3. The robotic arm apparatus for bagging according to claim 1, wherein: Drive assembly (2) still includes drive connecting rod (203), and the first crank (202) is connected between drive connecting rod (203) and drive motor (201), and the second crank (204) is connected between drive connecting rod (203) and drive square shaft (205).

4. The robotic arm apparatus for bagging according to claim 3, wherein: Finger clamp assembly (3) includes finger clamp fixed shaft (301), finger clamp connecting rod (302), finger clamp fixed plate (303) and finger clamp plate (305), finger clamp fixed shaft (301) is connected at one end of drive square shaft (205), the second crank (204) is set up between finger clamp fixed shaft (301) and second support (102), finger clamp connecting rod (302) both ends are connected finger clamp fixed shaft (301) and finger clamp fixed plate (303) respectively, and the end of finger clamp fixed plate (303) sets up the finger clamp plate (305) for clamping bag mouth.

5. The robotic arm apparatus for bagging according to claim 4, wherein: Finger clamp plate (305) includes upper finger clamp plate (305-1) and lower finger clamp plate (305-2), one end of upper finger clamp plate (305-1) engages and connects lower finger clamp plate (305-2), and the gear end of upper finger clamp plate (305-1) and lower finger clamp plate (305-2) is connected the end of finger clamp fixed plate (303), and finger clamp cylinder (304) is set up on finger clamp fixed plate (303), and the telescopic end of finger clamp cylinder (304) is connected upper finger clamp plate (305-1).

6. The robotic arm apparatus for bagging according to claim 1, wherein: Insert knife assembly (4) includes a group of insert knife connecting rod (401), a group of insert knife (403), insert knife shaft (404) and a group of first connecting rod (405), a group of first connecting rod (405) is symmetrically set up and is fixedly sleeved on drive square shaft (205), and the bottom end of first connecting rod (405) sets up insert knife connecting rod (401), a group of insert knife connecting rod (401) is connected insert knife shaft (404), and insert knife shaft (404) both ends symmetrically sets up insert knife (403).

7. The robotic arm apparatus for bagging according to claim 6, wherein: The plug blade assembly (4) further comprises a cylinder connecting seat (406), a plug blade cylinder (402) and a first fixing plate (407) for fixing the plug blade cylinder (402), the first fixing plate (407) being arranged between a group of plug blade connecting rods (401) and close to the plug blade cylinder (402), the cylinder connecting seat (406) being arranged at the bottom of the driving square shaft (205) and between a group of first connecting rods (405), the bottom of the cylinder connecting seat (406) being connected with the plug blade cylinder (402), the telescopic end of the plug blade cylinder (402) being connected with a connecting head capable of driving the plug blade shaft (404) to rotate, the connecting head being sleeved on the plug blade shaft (404).

8. The robotic arm apparatus for bagging according to claim 7, wherein: The far side of the first fixing plate (407) from the plug blade cylinder (402) is provided with a stretching crank (308), and the two ends of the stretching crank (308) are respectively provided with stretching connecting rods (309) for driving the rotation of the pulling finger clamping connecting rod (302).

9. The robotic arm apparatus for bagging according to claim 8, wherein: The top of the plug blade connecting rod (401) on one side is provided with a stretching cylinder (306) for rotating the stretching crank (308), the telescopic end of the stretching cylinder (306) is connected with one end of the stretching crank (308), so that the stretching crank (308) rotates around the center of the stretching crank (308), and the driving square shaft (205) is provided with a limiting piece (310) between the telescopic end of the stretching cylinder (306) and the plug blade connecting rod (401).

10. The robotic arm apparatus for bagging according to claim 9, wherein: A pressure detector (307) for detecting the bag opening clamping state is arranged between the telescopic end of the stretching cylinder (306) and the stretching crank (308).