Bag preparation device for packaging machine

Abstract

The present invention discloses a bag preparation device for a packaging machine in the technical field of packaging equipment, comprising: a frame, on which a bag preparation component, a bag placing component, a bag taking component and a bag receiving component are provided; the bag taking component comprises a mounting frame, a plurality of sprockets arranged on the mounting frame, a chain driven by the plurality of sprockets, a supporting component arranged on the chain, a driving motor for driving the sprocket to rotate, and a bag suction component arranged on the mounting frame; the present invention stores spare packaging bags through the bag preparation component, and conveys the spare packaging bags to the bag placing component after the packaging bags on the bag placing component are conveyed, so that the packaging bags are continuously conveyed without interruption, thereby improving the overall packaging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, in particular to a bag preparation device for a packaging machine. Background Art

[0002] In the modern production and logistics system, packaging machines are key equipment for realizing automated product packaging. Their efficiency and flexibility are directly related to the production capacity and market competitiveness of enterprises. During the packaging process, packaging bags need to be transported one by one to the loading area for bagging. The continuity of packaging bag transportation ensures the efficiency of loading. The traditional packaging bag transportation method is generally to use packaging bag conveying equipment to pick up and transport packaging bags stacked in the bag placement area. Generally, there is only a single bag placement area for placing packaging bags, and there is a lack of a bag preparation area. After the packaging bags in the bag placement area are transported, they need to be replenished. During this process, the packaging bag conveying equipment cannot work, making it impossible to continuously transport the packaging bags, affecting the overall packaging efficiency. In addition, since the packaging bags in the bag placement area are stacked together and have not been processed (the bag openings of the packaging bags are closed), when the packaging bag conveying equipment picks up the packaging bags, the bag openings of the packaging bags cannot be directly opened, and need to be opened later, which prolongs the packaging time. Summary of the Invention

[0003] The object of the present invention is to provide a bag preparation device for a packaging machine to solve the problem in the background art that there is only a single bag placement area for placing packaging bags and there is a lack of a bag preparation area.

[0004] To achieve the above object, the present invention provides the following technical solution: a bag preparation device for a packaging machine, comprising: a frame, on which are provided a bag preparation assembly, a bag placing member, a bag taking assembly and a bag receiving assembly;

[0005] The bag taking assembly includes a mounting frame, a plurality of sprockets arranged on the mounting frame, a chain driven by the plurality of sprockets, a support member arranged on the chain, a drive motor for driving the sprockets to rotate, and a bag suction member arranged on the mounting frame;

[0006] The bag preparation component is used to place spare packaging bags and convey the packaging bags to the bag placement component when the bag placement component is short of bags. The bag suction component is used to absorb the packaging bags on the bag placement component and lift one end of the packaging bags. The driving motor drives the sprocket to rotate, so that the chain transmission moves the support component, supports the packaging bag with the lifted end and conveys it to the bag receiving component.

[0007] Preferably, there are two mounting frames, each of which is provided with a sprocket and a chain, a rotating shaft is provided between the sprockets of the two mounting frames, and the supporting member includes a plurality of connecting rods provided between the two chains.

[0008] Preferably, the bag suction member includes a support arm hinged on the mounting frame, a second driving member for driving the support arm to rotate, and a first adsorption device provided on the support arm.

[0009] Preferably, the bag placing member includes a fifth driving member and a supporting plate provided on the moving end of the fifth driving member.

[0010] Preferably, the bag preparation assembly includes a placement table, a pushing member provided on the placement table, and a first driving member for driving the pushing member to move.

[0011] Preferably, the bag receiving assembly includes a receiving platform, a bracket provided on the receiving platform, a fourth driving member provided on the bracket, a second adsorption device provided on the moving end of the fourth driving member, and a third adsorption device provided on the receiving platform and below the second adsorption device.

[0012] Preferably, a guide roller is provided on the receiving platform, a mounting frame and a third driving member for driving the mounting frame to rotate are hinged on the bracket, a pressure roller is provided on the mounting frame above the guide roller, the pressure roller is located between the mounting frame and the second adsorption device, and a guide plate is provided on the side of the mounting frame facing the mounting frame.

[0013] Preferably, two groups of limiting members and a driving device for driving the two groups of limiting members to move closer or farther away are symmetrically provided on the receiving platform, and the limiting members are located between the mounting frame and the pressure roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The spare packaging bags are stored in the bag preparation component, and after the packaging bags on the bag placement unit are conveyed, the spare packaging bags are conveyed to the bag placement unit, so that the packaging bags are continuously conveyed without interruption, thereby improving the overall packaging efficiency;

[0016] 2. The top of one end of the packaging bag placed on the receiving table is sucked by the second adsorption device, and the bottom of the packaging bag is sucked by the third adsorption device. The second adsorption device is driven upward by the fourth driving member to open the bag mouth. No subsequent equipment is required to open the bag, thereby improving the overall packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the bag preparation device of the packaging machine of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection structure between the frame and the bag receiving assembly of the present invention;

[0019] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A;

[0020] Figure 4 This is a front view of the bag preparation device of the packaging machine of the present invention;

[0021] Figure 5 This is a side view of the bag preparation device of the packaging machine of the present invention;

[0022] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0023] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0024] In the figure: 1. Frame; 2. Bag taking assembly; 21. Mounting frame; 22. Sprocket; 23. Chain; 24. Connecting rod; 25. Bag suction member; 251. Support arm; 252. Second driving member; 253. First adsorption device; 26. Driving motor; 27. Rotating shaft; 3. Bag receiving assembly; 31. Receiving platform; 32. Guide roller; 33. Bracket; 34. Mounting frame; 35. Pressing roller; 36. Guide plate; 37. Third driving member; 38. Fourth driving member; 39. Second adsorption device; 310. Limiting member; 311. Third adsorption device; 4. Bag placing member; 41. Fifth driving member; 42. Support plate; 5. Bag preparation assembly; 51. Placing platform; 52. Pushing member; 53. First driving member. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figure 1 A bag preparation device for a packaging machine comprises: a frame 1, on which are provided a bag taking component 2, a bag receiving component 3, a bag placing component 4 and a bag preparation component 5;

[0028] Among them, see Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The bag taking assembly 2 includes two mounting frames 21, a plurality of sprockets 22, two chains 23, a support member, a rotating shaft 27, and a driving motor 26; the two mounting frames 21 are symmetrically arranged on the frame 1 (the two mounting frames 21 are symmetrical in the horizontal direction), and the mounting frames 21 are polygonal (such as Figure 1 、 Figure 2(shown as a quadrilateral), a plurality of sprockets 22 are evenly and rotatably mounted on a side wall of the two mounting frames 21 close to each other, and the two chains 23 are respectively driven to rotate by the sprockets 22 on the two mounting frames 21 (the chains 23 are connected end to end), and the support member includes a plurality of connecting rods 24, which are installed between the two chains 23. The support member only occupies a part of the chain 23 so as not to prevent the packaging bag from being moved out from between the two mounting frames 21. A rotating shaft 27 is provided between the two sprockets 22 opposite to each other on the two mounting frames 21, and a driving motor 26 is mounted on one mounting frame 21, and the output shaft of the driving motor 26 is connected to the shaft of the sprocket 22. A bag suction member 25 is provided on the mounting frame 21;

[0029] See also Figure 1 、 Figure 2 and Figure 5 , the bag receiving assembly 3 is located at the end of the top transmission direction of the bag taking assembly 2;

[0030] See also Figure 1 and Figure 4 The bag placing member 4 includes a fifth driving member 41 (such as an electric telescopic rod) and a supporting plate 42 provided on the moving end of the fifth driving member 41. The fifth driving member 41 is installed on the frame 1, and the supporting plate 42 is located between the two mounting racks 21. When the supporting member is transferred to the top of the mounting rack 21, its height is higher than the height of the supporting plate 42.

[0031] See also Figure 1 、 Figure 2 and Figure 4 The bag preparation assembly 5 includes a placement table 51, a pushing member 52 (the pushing member 52 is equivalent to a push plate) and a first driving member 53 (such as an electric cylinder). The placement table 51 is installed on the frame 1, and the placement table 51 is located on one side of the support plate 42. The pushing member 52 is slidably arranged on the top wall of the placement table 51. The first driving member 53 is arranged on the placement table 51, and the moving end of the first driving member 53 is connected to the pushing member 52.

[0032] The working process is as follows:

[0033] Loading: The packaging bag is placed on the top of the placement table 51 of the bag preparation component 5. The first driving member 53 works to drive the pushing member 52 to move. After the packaging bag is pushed to the top of the support plate 42 of the bag placement component 4, the first driving member 53 drives the pushing member 52 to return to its original position. Then, the packaging bag is stacked on the top of the placement table 51 for standby use.

[0034] Transmission: The fifth driving member 41 drives the support plate 42 to move upward, and is used to push the packaging bag on the support plate 42 to a suitable height. Then the bag suction member 25 absorbs a packaging bag on the support plate 42 and lifts one end of the packaging bag (the lifted end of the packaging bag faces the starting end of the transmission direction at the top of the bag-taking component 2, and the height of the packaging bag after lifting is higher than the height when the support is at the top of the mounting frame 21). At the same time, the driving motor 26 drives the sprocket 22 to rotate, so that the chain 23 drives the support member to move until the support member shovels the packaging bag with the lifted end above itself and holds it, and the bag suction member 25 is released. Open the packaging bag, the support continues to move, and the packaging bag is transported to the bag receiving component 3, waiting to be taken away by the equipment in the next processing flow; repeat the above operation to transport the packaging bags on the pallet 42 to the bag receiving component 3 one by one; after the packaging bags on the pallet 42 are transported, the fifth driving member 41 drives the pallet 42 to move downward, so that the pallet 42 is aligned with the placement table 51, and the first driving member 53 works, so that the pushing member 52 pushes the packaging bag to the top of the pallet 42 to complete the feeding (after feeding, the pushing member 52 and the pallet 42 are reset, and then the spare packaging bag is placed on the placement table 51).

[0035] It should be noted that the operations of the above devices are all uniformly controlled by a PLC controller. This method belongs to the existing technology and will not be described in detail here.

[0036] In this embodiment, as a further optimization solution, please refer to Figure 5 and Figure 6 The bag suction member 25 includes a support arm 251, a second driving member 252 (such as an electric telescopic rod) and a first adsorption device 253 (vacuum adsorption device, such as a vacuum suction cup and its supporting equipment). The support arm 251 is hinged on the side wall of the mounting frame 21, the fixed end of the second driving member 252 is hinged on the mounting frame 21, and the movable end of the second driving member 252 is hinged to the support arm 251. The first adsorption device 253 is arranged on the support arm 251, and the first adsorption device 253 is located above the two mounting frames 21; the second driving member 252 is retracted when working, causing the support arm 251 to rotate and move the first adsorption device 253 downward, contacting the packaging bag placed on the top of the support plate 42, and adsorbing it, and then the second driving member 252 extends, causing the support arm 251 to reverse, and move the first adsorption device 253 upward, so that one end of the packaging bag is lifted.

[0037] In this embodiment, as a further optimization solution, please refer to Figure 5 and Figure 7The bag receiving assembly 3 includes a receiving platform 31, a bracket 33, a fourth driving member 38 (such as an electric telescopic rod), a second adsorption device 39 and a third adsorption device 311 (the second adsorption device 39 and the third adsorption device 311 have the same structure and function as the first adsorption device 253). The receiving platform 31 is installed on the frame 1 and is located at the end of the top transmission direction of the bag taking assembly 2. The bracket 33 is installed on the top wall of the receiving platform 31. The fourth driving member 38 is provided on a side wall of the bracket 33 away from the mounting frame 21. The second adsorption device 39 is installed on the movable end of the fourth driving member 38; after the packaging bag is transferred to the receiving platform 31, the fourth driving member 38 drives the second adsorption device 39 to move downward, so that it contacts the top of the packaging bag and adsorbs it, and at the same time the third adsorption device 311 adsorbs the bottom of the packaging bag, and then the fourth driving member 38 drives the second adsorption device 39 to move upward, lifting the top of one end of the packaging bag away from the mounting frame 21, which is used to open the bag mouth of the packaging bag. There is no need for subsequent equipment to open the bag, thereby improving packaging efficiency.

[0038] In this embodiment, as a further optimization solution, please refer to Figure 7 A guide roller 32 is rotatably provided on the top wall of the receiving platform 31, and a mounting frame 34 is hingedly connected to the side wall of the bracket 33 facing the mounting frame 21. A pillar is provided on the top wall of the receiving platform 31, and a third driving member 37 (such as an electric telescopic rod) is hinged between the pillar and the mounting frame 34. A pressure roller 35 is rotatably provided on the mounting frame 34, and the pressure roller 35 is located just above the guide roller 32. The pressure roller 35 is located between the mounting frame 21 and the second adsorption device 39, and a guide plate 36 is provided on the side of the mounting frame 34 facing the mounting frame 21; after the bag taking assembly 2 transfers a partial area of ​​the packaging bag to the top of the receiving platform 31, the packaging bag contacts the pressure roller 35 and the guide roller 32, and the pressure roller 35 and the guide roller 32 are in contact. The roller 32 rotates to guide the packaging bag and completely pulls the packaging bag on the bag-taking assembly to the top of the receiving platform 31. The guide plate 36 is used to limit the packaging bag to ensure that the packaging bag is in contact with the pressure roller 35 and the guide roller 32. Two groups of limit members 310 (the limit members 310 are equivalent to blocks) are slidingly provided on the top wall of the receiving platform 31. A driving device (such as an electric cylinder) is installed on the receiving platform 31. The moving end of the driving device is connected to the two groups of limit members 310. The driving device is operated to move the two groups of limit members 310 to change the distance between the two limit members 310. The packaging bag transmitted from the bag-taking assembly 2 to the top of the receiving platform 31 is between the two limit members 310 to prevent the packaging bag from being misplaced.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bag preparation device for a packaging machine, comprising: The frame (1) is characterized in that: the frame (1) is provided with a bag preparation component (5), a bag placing component (4), a bag taking component (2) and a bag receiving component (3); The bag taking assembly (2) comprises a mounting frame (21), a plurality of sprockets (22) arranged on the mounting frame (21), a chain (23) driven by the plurality of sprockets (22), a support member arranged on the chain (23), a driving motor (26) for driving the sprockets (22) to rotate, and a bag suction member (25) arranged on the mounting frame (21); The bag preparation component (5) is used to place spare packaging bags and transport the packaging bags to the bag placement component (4) when the bag placement component (4) is out of bags. The bag suction component (25) is used to absorb the packaging bags on the bag placement component (4) and lift one end of the packaging bags. The driving motor (26) drives the sprocket (22) to rotate, so that the chain (23) drives the support component to move, and the packaging bags with the lifted ends are supported and transported to the bag receiving component (3). The bag receiving assembly (3) comprises a receiving platform (31), a bracket (33) provided on the receiving platform (31), a fourth driving member (38) provided on the bracket (33), a second adsorption device (39) provided on the moving end of the fourth driving member (38), and a third adsorption device (311) provided on the receiving platform (31) and below the second adsorption device (39); A guide roller (32) is provided on the receiving platform (31), a mounting frame (34) and a third driving member (37) for driving the mounting frame (34) to rotate are hingedly connected to the bracket (33), a pressure roller (35) is provided on the mounting frame (34) and is located above the guide roller (32), and the pressure roller (35) is located between the mounting frame (21) and the second adsorption device (39), and a guide plate (36) is provided on the side of the mounting frame (34) facing the mounting frame (21).

2. A bag preparation device for a packaging machine according to claim 1, characterized in that: There are two mounting frames (21), each of which is provided with a sprocket (22) and a chain (23). A rotating shaft (27) is provided between the sprockets (22) of the two mounting frames (21), and the supporting member includes a plurality of connecting rods (24) provided between the two chains (23).

3. The bag preparation device for a packaging machine according to claim 1, characterized in that: The bag suction member (25) comprises a support arm (251) hinged on the mounting frame (21), a second driving member (252) for driving the support arm (251) to rotate, and a first adsorption device (253) provided on the support arm (251).

4. The bag preparation device for a packaging machine according to claim 1, characterized in that: The bag placing member (4) comprises a fifth driving member (41) and a supporting plate (42) provided on the moving end of the fifth driving member (41).

5. The bag preparation device for a packaging machine according to claim 1, characterized in that: The bag preparation assembly (5) comprises a placement table (51), a pushing member (52) provided on the placement table (51), and a first driving member (53) for driving the pushing member (52) to move.

6. The bag preparation device for a packaging machine according to claim 1, characterized in that: Two groups of limiting members (310) and a driving device for driving the two groups of limiting members (310) to move closer or farther away are symmetrically provided on the receiving platform (31), and the limiting members (310) are located between the mounting frame (21) and the pressure roller (35).

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