Automatic bag opening device of packaging equipment

Abstract

The utility model discloses an automatic bag opening device of packaging equipment, which relates to the technical field of packaging and comprises a mounting frame, two first cylinders are mounted at the top of the mounting frame, a lifting frame is connected to the bottoms of the first cylinders, a plurality of connecting frames are fixedly connected to the bottom of the mounting frame, and a bag opening mechanism is mounted between the two connecting frames. According to the bag opening device, the bag opening rod is linked with the special-shaped gear through the rack, accurate bag opening is achieved, in the process, rotation of the special-shaped gear pushes the rack to move, the bag opening rod is driven to be far away, it is ensured that the bag opening is smoothly opened, and compared with traditional suction cup type bag opening, the method is more accurate, pulling force on a bag is reduced, and the bag opening efficiency is improved. By means of the mechanism, possible damage or deformation is avoided, meanwhile, the operation process is more stable, efficiency is improved, the service life of the bag is prolonged, and generally, by means of the mechanism, production efficiency can be improved, maintenance cost can be reduced, operation precision can be improved, and reliability of the packaging process can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to packaging technical field especially, relate to a kind of automatic bag opening device of packaging equipment. BACKGROUND

[0002] The device for opening the bag opening of packaging bag in packaging equipment is bag opening device, the current packaging equipment adopts assembly line operation mode when operating, and the packaging process is generally divided into four processes, in turn: bag taking and bag opening, bagging, bag opening folding, label bag sealing, and each process is correspondingly provided with a mechanism.

[0003] As the announcement No.CN210592708U discloses a kind of automatic bag opening device of packaging equipment, including workbench, workbench top surface left and right sides are fixedly provided with side plate, two groups of side plate are placed with carrier plate in middle part between two, side plate left and right sides are provided with slide bar, slide bar is placed in sliding slot and sliding slot is fixedly arranged in the bottom of side plate inner side, carrier plate lower surface left and right sides are fixedly provided with spring, workbench top wall left and right sides are provided with hollow cylinder and spring bottom is placed in hollow cylinder.

[0004] But in prior art, if the suction force of suction cup is set too large when bag opening, it is easy to tear packaging bag in the process of pulling open bag opening due to local excessive force, in addition, if the surface of suction cup is not flat, the suction force of the partial area contacted with bag surface is stronger when adsorbing packaging bag, the suction force of the partial area is weaker, when pulling open bag opening, the uneven force condition will be more obvious, so that packaging bag is excessively pulled in the part of strong suction force, thereby damage occurs. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem of tearing caused by large or uneven pulling force of suction cup in prior art, and provides an automatic bag opening device of packaging equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic bag opening device of packaging equipment, comprising a mounting frame, two first air cylinders are installed on the top of the mounting frame, a lifting frame is connected to the bottom of the first air cylinder, a plurality of connecting frames are fixedly connected to the bottom of the mounting frame, and a bag opening mechanism is installed between the two connecting frames.

[0007] The bag opening mechanism comprises a housing, a lifting rod is slidably connected to the center of the housing, connecting rods are fixedly connected to the bottom of the lifting rod on both sides, two linkage rods are rotatably connected to the ends of the connecting rods, a convex rod is rotatably connected to one end of the two linkage rods, a special-shaped gear is fixedly connected to the bottom of the convex rod, a center rod is rotatably connected to the inner side of the special-shaped gear, the center rod is fixedly connected to the inner wall of the housing at one end, a rack is meshingly connected below the special-shaped gear, and a bag opening rod is fixedly connected to the bottom of one end of the rack.

[0008] Preferably, the rack is provided with a sliding groove on both sides, and the sliding rail is fixedly connected to the bottom end of the inner cavity of the shell.

[0009] Preferably, the sliding rail is in sliding connection with the sliding groove, and the bag opening rod penetrates through the shell.

[0010] Preferably, the lifting rod penetrates through the shell and the lifting frame on one side of the top end of the lifting rod.

[0011] Preferably, the second air cylinder is installed at the bottom of the lifting frame, and the lifting plate is fixedly connected to the top of the second air cylinder.

[0012] Preferably, the lifting plate is fixedly connected to the top of the lifting rod.

[0013] Preferably, the shell is fixedly connected with the connecting frame on both sides.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that:

[0015] 1、In the utility model, the bag opening rod is linked with the special-shaped gear through the rack to realize accurate opening of the bag mouth, in the process, the rotation of the special-shaped gear drives the rack to move, thereby driving the bag opening rod to move away, ensuring that the bag mouth is smoothly opened, compared with the traditional suction cup type bag opening, the method is more accurate and reduces the pulling force on the bag, avoids possible damage or deformation, at the same time, the operation process is more stable, the efficiency is improved, and the service life of the bag is prolonged, in general, the mechanism can improve production efficiency, reduce maintenance cost, improve operation precision and ensure the reliability of the packaging process.

[0016] 2、In the utility model, the rack is matched between the sliding groove and the sliding rail, so that it can move stably, keep horizontal and straight, avoid inclination or deviation, ensure that the bag opening rod can smoothly perform the predetermined action, the second air cylinder controls the synchronous movement of the lifting plate and the lifting rod accurately, controls multiple bag opening mechanisms uniformly, ensures that each bag opening rod completes the action at the same time, thereby improving production efficiency and reducing the error of manual operation, in addition, the synchronous movement of the lifting plate and the bag opening rod effectively avoids improper operation or incomplete bag opening caused by uncoordinated movement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole three-dimensional structure schematic view of the automatic bag opening device of the packaging equipment;

[0018] Figure 2 It is a partial three-dimensional structure schematic view of the automatic bag opening device of the packaging equipment;

[0019] Figure 3This is a three-dimensional structural diagram of the bag opening mechanism of an automatic bag opening device for packaging equipment proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the housing of an automatic bag-opening device for packaging equipment proposed in this utility model.

[0021] Legend: 1. Mounting frame; 2. Lifting frame; 21. Connecting frame; 3. First cylinder; 4. Bag opening mechanism; 41. Housing; 411. Slide rail; 42. Bag opening rod; 43. Rack; 431. Slide groove; 44. Special gear; 441. Center rod; 45. Lifting rod; 46. Linkage rod; 47. Connecting rod; 48. Protruding rod; 5. Second cylinder; 51. Lifting plate. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides an automatic bag opening device for packaging equipment, including a mounting frame 1. Two first cylinders 3 are mounted on the top of the mounting frame 1. A lifting frame 2 is connected to the bottom of the first cylinders 3. Multiple connecting frames 21 are fixedly connected to the bottom of the mounting frame 1. A bag opening mechanism 4 is installed between two connecting frames 21.

[0025] The bag opening mechanism 4 includes a housing 41. A lifting rod 45 is slidably connected to the center of the housing 41. Connecting rods 47 are fixedly connected to both sides of the bottom end of the lifting rod 45. Two linkage rods 46 are rotatably connected to both ends of the connecting rods 47. A protruding rod 48 is rotatably connected to one end of the two linkage rods 46. A special gear 44 is fixedly connected to the bottom of the protruding rod 48. A central rod 441 is rotatably connected to the inside of the special gear 44. One end of the central rod 441 is fixedly connected to the inner wall of the housing 41. A rack 43 is meshed with the bottom of the special gear 44. A bag opening rod 42 is fixedly connected to the bottom of one end of the rack 43.

[0026] The specific settings and effects of the present embodiment will be discussed below. When opening the bag, first, the first air cylinder 3 is started to drive the plurality of bag opening mechanisms 4 to move downward to open the bag. Before opening the bag, the bag opening device with suction cups is used to preliminarily process the bag opening. The suction cups open a small opening in the bag and stop to avoid excessive pulling or damage to the bag. Subsequently, the two bag opening rods 42 in the bag opening mechanism 4 are inserted into the bag along the direction of the small opening. After insertion, the connecting rod 47 is moved by the lifting rod 45 to push the linkage rod 46 to move. The linkage rod 46 exerts force on the protruding rod 48 during this process, which in turn exerts force on the special-shaped gear 44.

[0027] The special-shaped gear 44 rotates around the center rod 441 under the action of the force. During rotation, the special-shaped gear 44 exerts force on the rack 43, causing the rack 43 to start moving. The movement of the rack 43 will drive the bag opening rod 42 to move together. The two bag opening rods 42 move away from each other due to the movement of the rack 43, and finally achieve complete opening of the bag. This process can accurately control the opening angle of the bag and ensure smooth opening of the bag opening, while avoiding the use of the bag opening device with suction cups for a long time, reducing the damage or deformation of the bag caused by pulling.

[0028] In this way, the entire bag opening operation becomes more efficient and stable. The use of bag opening rods 42 avoids the instability and possible damage caused by suction cups, effectively reduces the pulling force on the bag, thereby prolonging the service life of the bag and improving the accuracy and efficiency of the operation process.

[0029] Embodiment Two: As shown in Figure 2 Figure 4 The rack 43 is provided with a sliding groove 431 on both sides, and the inner cavity of the shell 41 is fixedly connected with a sliding rail 411 at the bottom. The sliding rail 411 is in sliding connection with the sliding groove 431, and the bottom end of the bag opening rod 42 penetrates the shell 41. The top end of the lifting rod 45 penetrates the shell 41 and the lifting frame 2. The second air cylinder 5 is installed at the bottom of the lifting frame 2, and the lifting plate 51 is fixedly connected to the top of the second air cylinder 5. The bottom of the lifting plate 51 is fixedly connected to the top of the lifting rod 45. The shell 41 is fixedly connected with the connecting frame 21 on both sides.

[0030] The effect of the entire embodiment is that when the rack 43 starts to move under the action of external force, it realizes smooth sliding through the cooperation between the sliding groove 431 and the sliding rail surface. This design ensures that the rack 43 always maintains a horizontal straight line during movement, avoiding tilting or deviation, thereby ensuring that the bag opening rod 42 can smoothly and accurately perform the predetermined action. The precise cooperation between the sliding groove 431 and the sliding rail makes the movement of the rack 43 more stable, reduces the deviation caused by friction or asymmetric force, and ensures the accuracy and efficiency of the entire bag opening operation.

[0031] ​Meanwhile, the second cylinder 5 plays a vital role in the process. By precisely controlling the movement of the lifting plate 51, the second cylinder 5 not only pushes the lifting plate 51 up and down, but also drives multiple lifting rods 45 to move synchronously. The movement of the lifting plate 51 and the cooperation of the lifting rods 45 realize the unified control of the bag opening rods 42 in multiple bag opening mechanisms 4. Through the connection with the bag opening rods 42, the lifting rods 45 ensure that each bag opening mechanism 4 can complete the bag opening action at the same time, thereby improving production efficiency and reducing the error of manual operation.

[0032] In addition, the design of the entire system synchronizes the movement of the lifting plate 51 and the bag opening rod 42, which can effectively avoid the problem of improper operation or incomplete bag opening caused by the uncoordinated movement of each bag opening mechanism 4.

[0033] The use method and working principle of the device are as follows: when opening the bag, the operation of the first cylinder 3 can drive multiple bag opening mechanisms 4 to move downward. Before opening the bag, the suction cup type bag opening device can stop after opening a small opening of the bag. Then, the two bag opening rods 42 of the bag opening mechanism 4 are inserted from the small opening. After insertion, the lifting rod 45 drives the connecting rod 47 to move, so that the connecting rod 47 can drive the linkage rod 46 to move together, so that the linkage rod 46 exerts force on the protruding rod 48. The protruding rod 48 can exert force on the special-shaped gear 44 in the process, the special-shaped gear 44 will rotate around the center rod 441, and will exert force on the rack 43, so that the rack 43 will start to move and drive the bag opening rod 42 to move. The two bag opening rods 42 will move away from each other, thereby opening the bag. This can avoid continuous use of the suction cup type bag opening device, which can prevent damage caused by pulling the bag.

[0034] When the rack 43 starts to move under the action of force, it will slide on the surface of the sliding rail 411 through the sliding groove 431, so as to ensure that the rack 43 can move horizontally and linearly, and ensure the normal movement of the bag opening rod 42. The second cylinder 5 can control the movement of the lifting plate 51, so that the lifting plate 51 drives multiple lifting rods 45 to move together, thereby controlling the movement of the bag opening rod 42 in multiple bag opening mechanisms 4 to complete the bag opening operation.

[0035] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments shall fall within the protection scope of the present application.

Claims

1. A packaging equipment automatic bag opening device, comprising a mounting frame (1), the top of the mounting frame (1) is provided with two first air cylinders (3), the bottom of the first air cylinder (3) is connected with a lifting frame (2), characterized in that: The mounting frame (1) bottom fixedly connected with a plurality of connecting frame (21), two connecting frame (21) between the installation of bag opening mechanism (4); The bag opening mechanism (4) includes a housing (41), the housing (41) is slidably connected with a lifting rod (45), the lifting rod (45) bottom side is fixedly connected with a connecting rod (47), the connecting rod (47) both ends are rotatably connected with two linkage rods (46), two linkage rods (46) one end is rotatably connected with a convex rod (48), the convex rod (48) bottom fixedly connected with a special gear (44), the special gear (44) inside rotatably connected with a center rod (441), the center rod (441) one end and the inner wall of the housing (41) is fixedly connected, the special gear (44) below meshing connection has a rack (43), the rack (43) one end bottom fixedly connected with a bag opening rod (42).

2. A bag opening device for a packaging apparatus according to claim 1, characterized in that: The rack (43) both sides are provided with a sliding slot (431), the housing (41) inner cavity bottom fixedly connected with a slide rail (411).

3. A bag opening apparatus for a packaging apparatus according to claim 2, characterized in that: The slide rail (411) and the sliding slot (431) are slidably connected, the bag opening rod (42) bottom penetrates the housing (41).

4. The automatic bag opening apparatus of claim 1, wherein: The lifting rod (45) top side penetrates the housing (41) and the lifting frame (2).

5. The automatic bag opening apparatus of claim 1, wherein: The lifting frame (2) bottom is provided with a second air cylinder (5), the second air cylinder (5) top fixedly connected with a lifting plate (51).

6. A bag opening apparatus for a packaging apparatus according to claim 5, characterized in that: The lifting plate (51) bottom and the lifting rod (45) top fixedly connected.

7. An automatic bag opening apparatus for a packaging apparatus according to claim 1, characterized in that: The housing (41) both sides are fixedly connected with the connecting frame (21).

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