Bag grabbing mechanism for packaging bags

Abstract

The bag grabbing mechanism comprises a connecting frame and two bag grabbing assemblies, the connecting frame is provided with a first connecting end and a second connecting end which are opposite, the two bag grabbing assemblies are connected to the first connecting end and the second connecting end in a swinging mode respectively, and a clamping space used for clamping the packaging bag is formed between the two bag grabbing assemblies; the bag grabbing assembly comprises a mounting plate, a rotating shaft, a first swing arm, a second swing arm and a fixing strip, the mounting plate is connected with the lower surface of the connecting frame, the rotating shaft is rotatably arranged on the lower surface of the mounting plate, the two ends of the rotating shaft are sleeved with the first swing arm and the second swing arm respectively, and the fixing strip is arranged in the extending direction of the rotating shaft; the fixing strip is fixedly connected with the ends, away from the rotating shaft, of the first swing arm and the second swing arm, and a plurality of L-shaped bag grabbing rods are sequentially distributed on the fixing strip in the length direction of the fixing strip at intervals. The structure is simple, operation is convenient, manual operation is not needed, the labor intensity of workers can be relieved, and meanwhile the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag grabbing, in particular to a packaging bag grabbing mechanism. Background Art

[0002] After the packaging bags are processed and manufactured, they need to be transported to a designated location. In the existing technology, most of them are transported manually, which has low work efficiency and high cost. During transportation, the operators have high workload and cannot realize automated production. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a bag gripping mechanism for a packaging bag.

[0004] The embodiment of the present application provides a bag-grabbing mechanism for a packaging bag, comprising a connecting frame and two axially symmetrically arranged bag-grabbing assemblies, wherein the connecting frame has a first connecting end and a second connecting end opposite to each other, the two bag-grabbing assemblies being swingably connected to the first connecting end and the second connecting end, respectively, and forming a clamping space for clamping the packaging bag between the two bag-grabbing assemblies;

[0005] The bag grabbing assembly includes a mounting plate, a rotating shaft, a first swing arm, a second swing arm, and a fixing bar. The mounting plate is connected to the lower surface of the connecting frame. The rotating shaft is rotatably arranged on the lower surface of the mounting plate. The first swing arm and the second swing arm are respectively sleeved on both ends of the rotating shaft. The fixing bar is arranged along the extension direction of the rotating shaft and is fixedly connected to one end of the first swing arm and the second swing arm away from the rotating shaft. A plurality of L-shaped bag grabbing rods are sequentially spaced along the length direction of the fixing bar.

[0006] Wherein, when the rotating shaft is driven to rotate, the first swing arm and the second swing arm are driven to swing, so that the bag grabbing rods in the two bag grabbing assemblies are moved closer to or farther away from each other.

[0007] In a possible embodiment, a connecting seat is further included, and the connecting seat is fixed to one end of the first swing arm and the second swing arm away from the rotating shaft. A clamping position is provided on the connecting seat, and the fixing bar is fixed in the clamping position.

[0008] In a possible embodiment, the bag grabbing rod includes a first rod body and a second rod body vertically connected, and the fixing bar is provided with through holes at intervals along its length direction. The first rod body is inserted into the through holes to connect the first rod body to the fixing bar, and the second rod body extends toward the clamping space.

[0009] In a possible implementation, a bag-grabbing plate is fixedly connected to the inner side surface of the fixing bar, and the second rod is disposed below the bag-grabbing plate.

[0010] In a possible embodiment, a power member is further included, the power member is fixed on the mounting plate, and the output end of the power member is connected to a transmission member, and the lower end of the transmission member passes downward through the connecting frame and is connected to the rotating shaft.

[0011] In a possible embodiment, the transmission member includes a connecting block and a swing bar, the lower end of the swing bar is sleeved on the rotating shaft, the upper end of the swing bar passes through the mounting plate and is hinged to the connecting block, and a connecting hole is provided at one end of the connecting block close to the power member, and the output end of the power member is plugged into the connecting hole.

[0012] In a possible embodiment, it also includes two pressing parts axially symmetrically arranged in the clamping space, the pressing parts include a pressing plate and a pressing cylinder, the pressing cylinder is fixed on the mounting plate, and the piston rod of the pressing cylinder is connected to the pressing plate for driving the pressing plate to move back and forth.

[0013] In a possible embodiment, the connecting frame is rotatably provided with an adjusting screw along its length direction, and the mounting plate is threadedly connected to the adjusting screw, so that when the adjusting screw rotates, the mounting plate moves along the adjusting screw.

[0014] In a possible implementation manner, a top plate for connecting to the moving mechanism is provided on the top of the connecting frame.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] After the bag-grabbing mechanism of the packaging bag moves above the packaging bag, the driving shaft is rotated to make the first swing arm and the second swing arm driven to swing outward, thereby making the bag-grabbing rod connected to the fixed bar move outward, making the bag-grabbing rods in the two bag-grabbing assemblies move away from each other, and the packaging bag falls into the clamping space. Thereafter, the driving shaft is reversed to make the first swing arm and the second swing arm driven to swing inward, thereby making the bag-grabbing rods in the two bag-grabbing assemblies move closer to each other, and the left and right sides of the packaging bag are restrained and limited, and the bottom of the packaging bag is also abutted by the bag-grabbing rod, and finally the bag-grabbing mechanism of the packaging bag is moved to the specified position. That is to say, the bag-grabbing mechanism of the packaging bag utilizes a rotating shaft to drive the first swing arm and the second swing arm to swing, thereby driving the bag-grabbing rod connected to the fixed bar to move, so that the bag-grabbing rods in the two bag-grabbing assemblies abut and limit the left and right sides of the packaging bag, and support the bottom of the packaging bag, thereby clamping the packaging bag in the clamping space, realizing automatic bag grabbing of the packaging bag, with a simple structure and easy operation, without manual operation, which is conducive to reducing the labor intensity of workers and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a bag grabbing mechanism for a packaging bag according to an embodiment of the present utility model;

[0018] Figure 2 This is a structural schematic diagram of a bag-grabbing mechanism for a packaging bag according to an embodiment of the present utility model from another perspective;

[0019] Figure 3 This is a structural schematic diagram of a bag grabbing assembly in a bag grabbing mechanism for a packaging bag according to an embodiment of the present utility model;

[0020] Figure 4 It is a structural schematic diagram of another perspective of a bag grabbing assembly in a bag grabbing mechanism of a packaging bag according to an embodiment of the present utility model.

[0021] Figure Number:

[0022] 10. Connecting frame; 20. Bag grabbing assembly; 21. Mounting plate; 22. Fixing bar; 23. Bag grabbing rod; 231. First rod body; 232. Second rod body; 24. First swing arm; 25. Second swing arm; 26. Rotating shaft; 30. Clamping space; 40. Power part; 50. Bag grabbing plate; 60. Pressing part; 61. Pressing cylinder; 62. Pressing plate; 70. Top plate; 80. Transmission part; 81. Connecting block; 82. Swinging bar. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0024] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0026] like Figures 1 to 4As shown, a bag-grabbing mechanism for a packaging bag according to an embodiment of the present invention includes a connecting frame 10 and two axially symmetrically arranged bag-grabbing assemblies 20. The connecting frame 10 has a first connecting end and a second connecting end facing each other. The two bag-grabbing assemblies 20 are swingably connected to the first connecting end and the second connecting end, respectively. A clamping space 30 for clamping the packaging bag is formed between the two bag-grabbing assemblies 20. In other words, by driving the two bag-grabbing assemblies 20 to swing, the clamping space 30 between the two bag-grabbing assemblies 20 can be adjusted, thereby achieving clamping or releasing of the packaging bag.

[0027] Specifically, the bag grabbing assembly 20 includes a mounting plate 21, a rotating shaft 26, a first swing arm 24, a second swing arm 25, and a fixing bar 22. The mounting plate 21 is connected to the lower surface of the connecting frame 10. The rotating shaft 26 is rotatably mounted on the lower surface of the mounting plate 21. The first swing arm 24 and the second swing arm 25 are respectively sleeved on both ends of the rotating shaft 26. The fixing bar 22 is arranged along the extension direction of the rotating shaft 26 and is fixedly connected to the ends of the first and second swing arms 24, 25 away from the rotating shaft 26. The fixing bar 22 has a plurality of L-shaped bag grabbing rods 23 spaced along its length. When the rotating shaft 26 is driven to rotate, the first and second swing arms 24, 25 are driven to swing, thereby moving the bag grabbing rods 23 in the two bag grabbing assemblies 20 closer to or farther away from each other.

[0028] The bag-grabbing mechanism of the packaging bag based on the above-mentioned technical features, after the bag-grabbing mechanism of the packaging bag moves to the top of the packaging bag, drives the rotating shaft 26 to rotate, so that the first swing arm 24 and the second swing arm 25 are driven to swing outward, thereby causing the bag-grabbing rod 23 connected to the fixed bar 22 to move outward, so that the bag-grabbing rods 23 in the two bag-grabbing assemblies 20 are moved away from each other, and the packaging bag falls into the clamping space 30, and then drives the rotating shaft 26 to reverse, so that the first swing arm 24 and the second swing arm 25 are driven to swing inward, thereby causing the bag-grabbing rods 23 in the two bag-grabbing assemblies 20 to approach each other, and the left and right sides of the packaging bag are restrained and limited, and the bottom of the packaging bag is also abutted by the bag-grabbing rod 23, and finally the bag-grabbing mechanism of the packaging bag is moved to the specified position. That is to say, the bag-grabbing mechanism of the packaging bag utilizes the rotating shaft 26 to drive the first swing arm 24 and the second swing arm 25 to swing, thereby driving the bag-grabbing rod 23 connected to the fixed bar 22 to move, so that the bag-grabbing rod 23 in the two bag-grabbing assemblies 20 abuts and limits the left and right sides of the packaging bag, and supports the bottom of the packaging bag, thereby clamping the packaging bag in the clamping space 30, realizing automatic bag grabbing of the packaging bag, with a simple structure and easy operation, without manual operation, which is conducive to reducing the labor intensity of workers and improving production efficiency.

[0029] In one possible embodiment, a connecting base is further included. The connecting base is fixed to the ends of the first and second swing arms 24 and 25 away from the rotation axis 26. The connecting base has a clamping position, and the fixing bar 22 is fixed within the clamping position. Thus, the fixing bar 22 is snapped into the clamping position, and then fasteners are sequentially passed through the fixing bar 22 and the connecting member, thereby detachably connecting the fixing bar 22 to the first and second swing arms 24 and 25, thereby facilitating subsequent replacement.

[0030] In one possible embodiment, the bag grabbing rod 23 includes a first rod body 231 and a second rod body 232 vertically connected. The fixing bar 22 is provided with perforations at intervals along its length. The first rod body 231 is inserted into the perforations so that the first rod body 231 is connected to the fixing bar 22, and the second rod body 232 extends toward the clamping space 30.

[0031] In one possible embodiment, a bag-grabbing plate 50 is fixedly connected to the inner side of the fixing bar 22, and the second rod 232 is disposed below the bag-grabbing plate 50. In this way, the bag-grabbing plate 50 disposed on the inner side of the fixing bar 22 abuts against the left and right sides of the packaging bag to be clamped, thereby making the packaging bag more secure and reliable, and preventing the risk of the bag falling during the clamping process.

[0032] In a possible embodiment, a power member 40 is further included, which is fixed on the mounting plate 21 , and an output end of the power member 40 is connected to a transmission member 80 , and a lower end of the transmission member 80 passes downward through the connecting frame 10 and is connected to the rotating shaft 26 .

[0033] For example, the power member 40 can be a cylinder, and the piston rod of the cylinder is used to drive the transmission member 80 to swing back and forth. Since the lower end of the transmission member 80 passes through the connecting frame 10 and is connected to the rotating shaft 26, the rotating shaft 26 is pushed to rotate, thereby driving the first swing arm 24 and the second swing arm to rotate, so that the bag grabbing rods 23 in the two bag grabbing assemblies 20 are moved closer to or away from each other, thereby clamping or releasing the packaging bag. The structure is simple and the operation is convenient.

[0034] In one possible embodiment, the transmission member 80 includes a connecting block 81 and a swing bar 82. The lower end of the swing bar 82 is sleeved onto the rotating shaft 26, and the upper end of the swing bar 82 is hingedly connected to the connecting block 81 through the mounting plate 21. The end of the connecting block 81 near the power member 40 has a connection hole, and the output end of the power member 40 is inserted into the connection hole. As a result, when the power member 40 drives the connecting block 81 to move, the swing bar 82 is pushed to swing. Because the swing bar 82 is sleeved onto the rotating shaft 26, the rotating shaft 26 is driven to rotate, which in turn drives the bag-grabbing rod 23 to swing, thereby grasping the packaging bag within the clamping space 30.

[0035] In one possible embodiment, the device further includes two pressing members 60 axially symmetrically arranged in the clamping space 30. The pressing members 60 include a pressing plate 62 and a pressing cylinder 61. The pressing cylinder 61 is fixed to the mounting plate 21. The piston rod of the pressing cylinder 61 is connected to the pressing plate 62 and is used to drive the pressing plate 62 to move back and forth. In this way, when clamping the bag, the pressing plate 62 is first driven downward by the pressing cylinder 61 so that the pressing plate 62 limits the top of the bag. Then, the rotating shaft 26 is driven to rotate so that the first swing arm 24 and the second swing arm 25 drive the fixing bar 22 to move, thereby causing the bag-grabbing rod 23 to contact and limit the bottom and left and right sides of the bag. This makes the bag clamping more secure and reliable, and avoids the risk of the bag falling during the clamping process.

[0036] In one possible embodiment, the connecting frame 10 is rotatably provided with an adjustment screw along its length. The mounting plate 21 is threadedly connected to the adjustment screw, so that when the adjustment screw rotates, the mounting plate 21 moves along the adjustment screw. In other words, when gripping bags of different sizes, the adjustment screw can be rotated to move the mounting plate 21, which is threadedly connected to the adjustment screw. This in turn drives the two bag-gripping assemblies 20 connected to the mounting plate 21 to move, thereby adjusting the distance between the two bag-gripping assemblies 20 to accommodate bags of different sizes.

[0037] In one possible embodiment, a top plate 70 for connecting to a moving mechanism is provided on the top of the connecting frame 10. Thus, the top plate 70 is connected to an external moving mechanism, so that the bag-grabbing mechanism can be moved as a whole under the action of the moving mechanism, thereby transferring the grabbed bag to a designated area.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A bag grabbing mechanism for a packaging bag, characterized in that: The invention comprises a connecting frame and two grab bag assemblies arranged symmetrically with respect to each other, wherein the connecting frame has a first connecting end and a second connecting end opposite to each other, and the two grab bag assemblies are respectively swingably connected to the first connecting end and the second connecting end, and a clamping space for clamping a packaging bag is formed between the two grab bag assemblies; The bag grabbing assembly includes a mounting plate, a rotating shaft, a first swing arm, a second swing arm, and a fixing bar. The mounting plate is connected to the lower surface of the connecting frame. The rotating shaft is rotatably arranged on the lower surface of the mounting plate. The first swing arm and the second swing arm are respectively sleeved on both ends of the rotating shaft. The fixing bar is arranged along the extension direction of the rotating shaft and is fixedly connected to one end of the first swing arm and the second swing arm away from the rotating shaft. A plurality of L-shaped bag grabbing rods are sequentially spaced along the length direction of the fixing bar. Wherein, when the rotating shaft is driven to rotate, the first swing arm and the second swing arm are driven to swing, so that the bag grabbing rods in the two bag grabbing assemblies are moved closer to or farther away from each other.

2. The bag grabbing mechanism for a packaging bag according to claim 1, characterized in that: It also includes a connecting seat, and the connecting seat is fixed to one end of the first swing arm and the second swing arm away from the rotating shaft. A clamping position is opened on the connecting seat, and the fixing bar is fixed in the clamping position.

3. The bag grabbing mechanism for packaging bags according to claim 1, characterized in that: The bag grabbing rod includes a first rod body and a second rod body connected vertically. The fixing bar is provided with through holes at intervals along its length direction. The first rod body is inserted into the through holes to connect the first rod body to the fixing bar. The second rod body extends toward the clamping space.

4. The bag grabbing mechanism for a packaging bag according to claim 3, characterized in that: The inner side surface of the fixing bar is fixedly connected with a bag grabbing plate, and the second rod body is arranged below the bag grabbing plate.

5. The bag grabbing mechanism for packaging bags according to claim 1, characterized in that: It also includes a power piece, which is fixed on the mounting plate, and the output end of the power piece is connected to a transmission piece, and the lower end of the transmission piece passes downward through the connecting frame and is connected to the rotating shaft.

6. The bag grabbing mechanism for a packaging bag according to claim 5, characterized in that: The transmission member includes a connecting block and a swing bar, the lower end of the swing bar is sleeved on the rotating shaft, the upper end of the swing bar passes through the mounting plate and is hinged to the connecting block, a connecting hole is opened at one end of the connecting block close to the power member, and the output end of the power member is plugged into the connecting hole.

7. The bag grabbing mechanism for a packaging bag according to claim 1, characterized in that: It also includes two pressing parts axially symmetrically arranged in the clamping space, the pressing parts include a pressing plate and a pressing cylinder, the pressing cylinder is fixed on the mounting plate, the piston rod of the pressing cylinder is connected to the pressing plate, and is used to drive the pressing plate to move back and forth.

8. The bag-grabbing mechanism for packaging bags according to claim 1, characterized in that: An adjusting screw is rotatably provided on the connecting frame along its length direction, and the mounting plate is threadedly connected to the adjusting screw so that when the adjusting screw rotates, the mounting plate moves along the adjusting screw.

9. The bag-grabbing mechanism for packaging bags according to claim 1, characterized in that: A top plate for connecting the moving mechanism is provided on the top of the connecting frame.

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