Turnover device for packaging bag with easy-to-pull cover

Abstract

The utility model provides an easy-to-pull cover packaging bag turnover device which comprises a base, the base is provided with a rotating rod and a first driving device, the first driving device is used for driving the rotating rod to rotate, and the rotatable angle of the rotating rod is larger than or equal to 180 degrees; the at least two clamping devices are arranged on the rotating rod and can rotate along with the rotating rod, and the clamping devices are distributed along the rotating rod at intervals; the clamping device comprises a second driving device and two clamping plates, and the second driving device is used for driving the two clamping plates to move left and right so as to clamp or loosen the packaging bag. The turnover device is simple and reliable in structure, action connection of other mechanical structures of the easy-open lid packaging equipment is facilitated, and the packaging efficiency and the packaging quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of easy-open lid packaging, in particular to the field of a flipping device for an easy-open lid packaging bag. Background Art

[0002] Easy-open lids are usually packaged in paper bags. In the past, this packaging work was usually done manually by workers. In recent years, some equipment has appeared to package easy-open lids. During the process of packaging the easy-open lids and sealing the packaging bags, the folds of the packaging bags need to be flipped. Currently, this process is usually completed manually by workers. In addition, the packaging bags are prone to loosening and deformation during the flipping process, and the easy-open lids are also prone to falling from the opening of the packaging bags, which is inefficient and will also affect the packaging quality. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a flipping device for easy-open lid packaging bags that helps to improve production efficiency and ensure packaging quality.

[0004] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0005] A flipping device for an easy-open lid packaging bag, comprising:

[0006] a base, wherein a rotating rod and a first driving device are provided on the base, wherein the first driving device is used to drive the rotating rod to rotate around a central axis of the rotating rod, and the rotating angle of the rotating rod is greater than or equal to 180 degrees;

[0007] At least two clamping devices are arranged on the rotating rod and can rotate with the rotating rod, and the clamping devices are distributed at intervals along the rotating rod; the clamping device includes a second driving device and two clamping plates, and the second driving device is used to drive the two clamping plates to move closer or farther to clamp or loosen the packaging bag.

[0008] Preferably, a first detection device for detecting the rotation angle of the rotating rod is provided on the base.

[0009] Preferably, the first detection device comprises two proximity switches respectively provided on opposite sides of the rotating rod, and the rotating rod is provided with a sensing sheet adapted to the proximity switch.

[0010] Preferably, a second detection device for detecting the position of the packaging bag is provided on the base.

[0011] Preferably, a positioning seat is provided on the rotating rod, the clamping device is provided on the positioning seat, and the positioning seat is provided with a positioning pin for abutting against the packaging bag.

[0012] Preferably, at least one of the positioning pins is located at a position corresponding to the seal of the packaging bag.

[0013] Preferably, the first driving device is a servo motor and is connected to the rotating rod through a reducer.

[0014] Preferably, it further includes a lifting seat and a pressing device arranged on the lifting seat, the lifting seat is located below the clamping device and is used to place the packaging bag, the lifting seat is driven by a third driving device and can move up and down; the pressing device includes a pressing block and a fourth driving device, the fourth driving device is used to drive the pressing block to swing to tighten or loosen the seal of the packaging bag.

[0015] Preferably, the lifting seat is provided with a receiving groove matching the packaging bag, and the side wall of the receiving groove is provided with an escape opening corresponding to the clamping device.

[0016] The beneficial effects of the present invention are as follows: when the turning device is in use, the clamping plates of each clamping device can be driven by the second driving device to clamp the packaging bag, and the simultaneous cooperation of multiple clamping devices can ensure that the packaging bag is clamped firmly and stably, so that the packaging bag is not prone to deflection, dislocation and deformation. Thereafter, the first driving device can drive the rotating rod to rotate, thereby driving the various clamping devices to rotate and lift the packaging bag and flip the fold to a downward angle. The structure is simple and reliable, which is beneficial to the action connection of other mechanical structures of the easy-open lid packaging equipment, thereby improving packaging efficiency and packaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a structural diagram of a preferred embodiment of the utility model;

[0019] Figure 2 This is a structural diagram of a preferred embodiment of the utility model after the clamping device is flipped over;

[0020] Figure 3 This is a structural diagram of the pressing block and the fourth driving device in a preferred embodiment of the present utility model.

[0021] Among them, the reference numerals in the figures are:

[0022] 10. Base; 21. Rotating rod; 22. First driving device; 30. Clamping device; 31. Clamping plate; 32. Second driving device; 41. Proximity switch; 42. Clamping seat; 43. Second detecting device; 51. Positioning seat; 52. Positioning pin; 60. Lifting seat; 61. Third driving device; 62. Accommodating groove; 63. Avoidance port; 70. Pressing block; 71. Fourth driving device. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figures 1 to 3 The preferred embodiment of the present utility model is a flipping device for an easy-open lid packaging bag, comprising: a base 10, on which is provided a rotating rod 21 and a first driving device 22, the first driving device 22 being used to drive the rotating rod 21 to rotate, and the rotatable angle of the rotating rod 21 is greater than or equal to 180°; at least two clamping devices 30 are provided on the rotating rod 21 and can rotate with the rotating rod 21, and the clamping devices 30 are distributed at intervals along the rotating rod 21; the clamping device 30 includes a second driving device 32 and two clamping plates 31, the second driving device 32 being used to drive the two clamping plates 31 to move left and right to clamp or release the packaging bag. When the flipping device is in use, the clamping plates 31 of each clamping device 30 can clamp the packaging bag by being driven by the second driving device 32. The simultaneous cooperation of multiple clamping devices 30 can ensure that the packaging bag is clamped firmly and stably, so that the packaging bag is not prone to deflection, dislocation and deformation. Afterwards, the first driving device 22 can drive the rotating rod 21 to rotate, thereby driving each clamping device 30 to rotate and lift the packaging bag and flip the fold to a downward angle. The structure is simple and reliable, which is beneficial to the action connection of other mechanical structures of the easy-open lid packaging equipment, thereby improving packaging efficiency and packaging quality.

[0028] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0029] In this embodiment, a first detection device for limiting the rotation angle of the rotating rod 21 is provided on the base 10, which facilitates accurate monitoring and control of the flipping angle of the packaging bag. In actual application, the controller can be used to receive the detection results of the first detection device and control the start and stop of the first driving device 22 accordingly.

[0030] In this embodiment, the first detection device includes two proximity switches 41, one located on opposite sides of the rotating rod 21. A sensor pad compatible with the proximity switches 41 is provided on the rotating rod 21. This facilitates accurate 180° rotation of the packaging bag, resulting in a simple structure and easy installation and commissioning. In this embodiment, a clamping seat 42 is provided on the rotating rod 21 to hold the sensor pad. In other embodiments, the first detection device may also utilize other commonly used detection structures, and is not limited to this embodiment.

[0031] In this embodiment, a second detection device 43 is provided on the base 10 for detecting the position of the packaging bag. This facilitates the normal execution of subsequent operations and prevents malfunctions caused by the clamping device 30 resetting to clamp the bag again after flipping it before removing it. This helps reduce the failure rate and ensures smooth production. In this embodiment, the second detection device 43 is a photoelectric sensor provided on the base 10, which has a simple structure and is easy to install and use. In other embodiments, the second detection device 43 may also adopt other commonly used detection structures such as a contact switch, and the present invention is not limited to this embodiment.

[0032] In this embodiment, a positioning seat 51 is provided on the rotating rod 21, and the clamping device 30 is disposed on the positioning seat 51. The positioning seat 51 is provided with a positioning pin 52 for abutting the packaging bag. This allows the packaging bag to be accurately positioned, facilitating smooth subsequent processing. In this embodiment, the number of positioning seats 51 and the number of clamping devices 30 are the same, and they correspond one to one. Each positioning seat 51 is provided with four positioning pins 52. In other embodiments, the number and distribution of positioning seats 51 and positioning pins 52 can be flexibly adjusted as needed.

[0033] In this embodiment, at least two positioning pins 52 are located at positions corresponding to the seal of the packaging bag. This can compress the seal of the packaging bag and prevent the seal from loosening and causing the easy-open lid to slide out, further reducing the failure rate and ensuring packaging quality. In this embodiment, the four positioning pins 52 on the frontmost positioning seat 51 correspond to the seal of the packaging bag. In other embodiments, other numbers of positioning pins 52 can also be selected to correspond to the seal of the packaging bag to compress the seal.

[0034] In this embodiment, the first drive device 22 is a servo motor connected to the rotating rod 21 via a speed reducer. This allows for accurate control of the rotation angle of the rotating rod 21 and for resetting the rotating rod 21 in the opposite direction, facilitating operation and adjusting the flip angle of the packaging bag as needed. In other embodiments, the first drive device 22 may alternatively utilize another suitable drive structure, such as a swing cylinder.

[0035] In this embodiment, the second drive device 32 is a clamping cylinder, which has a simple and reliable structure, fast action, and is easy to install and control. In other embodiments, the second drive device 32 can also select other common drive structures such as a motor, but is not limited to this.

[0036] This embodiment also includes a lifting seat 60 and a clamping device mounted on the lifting seat 60. The lifting seat 60 is located below the clamping device 30 and is used to place the packaging bag. The lifting seat 60 is driven by a third drive device 61 to move up and down. The clamping device includes a pressing block 70 and a fourth drive device 71. The fourth drive device 71 is used to drive the pressing block 70 to swing to tighten or loosen the seal of the packaging bag. The third drive device 61 thus drives the lifting seat 60 upward to deliver the packaging bag to the clamping device 30 for clamping. At the same time, the fourth drive device 71 maintains pressure on the packaging bag seal during this process, preventing the bag opening from opening and causing the easy-open lid to slip out. In this embodiment, the third drive device 61 utilizes a pneumatic cylinder. Bearings are provided at both ends of the base 10, and steel shafts are provided at both ends of the lift 60, passing through the bearings. These provide positioning, ensuring smooth vertical movement of the lift 60. The pressure block 70 is swingably mounted on the lift 60. The fourth drive device 71 utilizes a pneumatic cylinder, and drives the pressure block 70 to swing back and forth via a connecting rod mechanism. This results in a simple, reliable structure, rapid operation, and ease of manufacture and control. In other embodiments, the third and fourth drive devices 61 and 71 may also utilize other commonly used drive structures, and are not limited thereto.

[0037] In this embodiment, a receiving groove 62 matching the packaging bag is provided on the lifting seat 60, and an avoidance opening 63 corresponding to the clamping device 30 is provided on the side wall of the receiving groove 62, so that after the lifting seat 60 is raised, the packaging bag can be accurately and smoothly handed over to the clamping device 30 for clamping to complete subsequent actions.

[0038] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0039] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A flipping device for an easy-open lid packaging bag, characterized in that: include: A base (10), wherein a rotating rod (21) and a first driving device (22) are provided on the base (10), wherein the first driving device (22) is used to drive the rotating rod (21) to rotate, and the rotating angle of the rotating rod (21) is greater than or equal to 180°; At least two clamping devices (30) are arranged on the rotating rod (21) and can rotate with the rotating rod (21), and the clamping devices (30) are distributed at intervals along the rotating rod (21); the clamping device (30) includes a second driving device (32) and two clamping plates (31), and the second driving device (32) is used to drive the two clamping plates (31) to move left and right to clamp or loosen the packaging bag.

2. The flipping device for an easy-open lid packaging bag according to claim 1, characterized in that: The base (10) is provided with a first detection device for limiting the rotation angle of the rotating rod (21).

3. The flipping device for an easy-open lid packaging bag according to claim 2, characterized in that: The first detection device comprises two proximity switches (41) respectively provided on opposite sides of the rotating rod (21), and the rotating rod (21) is provided with a sensing sheet adapted to the proximity switches (41).

4. The flipping device for an easy-open lid packaging bag according to claim 1, characterized in that: The base (10) is provided with a second detection device (43) for detecting the position of the packaging bag.

5. The flipping device for an easy-open lid packaging bag according to claim 1, characterized in that: A positioning seat (51) is provided on the rotating rod (21), the clamping device (30) is provided on the positioning seat (51), and a positioning pin (52) for contacting with a packaging bag is provided on the positioning seat (51).

6. The flipping device for an easy-open lid packaging bag according to claim 5, characterized in that: At least one positioning pin (52) is located at a position corresponding to the sealing of the packaging bag.

7. The flipping device for an easy-open lid packaging bag according to claim 1, characterized in that: The first driving device (22) is a servo motor and is connected to the rotating rod (21) via a speed reducer.

8. The flipping device for an easy-open lid packaging bag according to claim 1, characterized in that: The invention also includes a lifting seat (60) and a pressing device arranged on the lifting seat (60). The lifting seat (60) is located below the clamping device (30) and is used to place the packaging bag. The lifting seat (60) is driven by a third driving device (61) and can move up and down. The pressing device includes a pressing block (70) and a fourth driving device (71). The fourth driving device (71) is used to drive the pressing block (70) to swing to press or loosen the seal of the packaging bag.

9. The flipping device for an easy-open lid packaging bag according to claim 8, characterized in that: The lifting seat (60) is provided with a receiving groove (62) matching the packaging bag, and the side wall of the receiving groove (62) is provided with an escape opening (63) corresponding to the clamping device (30).

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