Bag opening mechanism of moxa cone packaging machine

Abstract

The utility model discloses a bag opening mechanism of a moxa cone packaging machine, and relates to the technical field of moxa cone packaging. The bag opening suction cup comprises an upper bag opening suction cup body and a lower bag opening suction cup body which are oppositely arranged, the lower bag opening suction cup body is fixedly connected with the workbench, and the upper bag opening suction cup body is driven by a bag opening air cylinder to ascend and descend; the bag opening tongue depressor is located on one side of the bag opening lower suction cup and is driven by a second air cylinder to ascend and descend; the two bag opening foot plates are parallel to each other, and the two bag opening foot plates are driven by a driving mechanism to be close to or far away from each other, do reciprocating motion between the bag opening tongue depressor and the bag opening lower suction cup in the length direction of the bag opening foot plates, and are used for opening a packaging bag and sleeving the outer side of the bag opening tongue depressor. The bag opening mechanism of the moxa cone packaging machine is simple in action, materials are conveniently pushed into a packaging bag under the combined action of the two bag opening foot plates and the bag opening tongue depressor, and therefore the packaging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of moxa stick packaging, in particular to a bag opening mechanism for a moxa stick packaging machine. Background Art

[0002] During the packaging process of moxa sticks, the moxa sticks need to be pushed into the packaging bag and sealed by the packaging bag. The traditional packaging process of moxa sticks is manual packaging, and the packaging quality and production efficiency are very low. It is difficult to arrange the moxa sticks neatly, and it is even more difficult to pack the moxa sticks according to size.

[0003] Currently, there is a method on the market that uses a mechanical structure to automatically package moxa sticks. The moxa sticks are wrapped with packaging film and then the packaging film is sealed on three sides. This packaging method is complicated to operate, especially in the loading and sealing stage of the packaging film. Too many equipment movements make it difficult to improve efficiency.

[0004] Therefore, it is necessary to propose a bag opening mechanism for a moxa stick packaging machine to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a bag opening mechanism for a moxa stick packaging machine which has simple operation and can improve efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a bag opening mechanism of a moxa stick packaging machine, comprising: a workbench;

[0009] The bag opening suction cup comprises an upper bag opening suction cup and a lower bag opening suction cup which are arranged relatively to each other, the lower bag opening suction cup is fixedly connected to the workbench, and the upper bag opening suction cup is driven to rise and fall by a bag opening cylinder;

[0010] A bag opening tongue depressor, which is located on one side of the bag opening lower suction cup and is driven to rise and fall by a second air cylinder;

[0011] There are two bag opening foot plates, which are parallel to each other. The two bag opening foot plates are driven by a driving mechanism to move closer to or away from each other, and make reciprocating motion between the bag opening tongue depressor and the bag opening lower suction cup along their length direction, so as to open the packaging bag and sleeve it on the outside of the bag opening tongue depressor.

[0012] Preferably, in the initial state: the two bag opening foot plates are both located above the bag opening tongue depressor; in the expanded state: the two bag opening foot plates are respectively located on both sides of the bag opening tongue depressor.

[0013] Preferably, there are two lower bag opening suction cups, and the two lower bag opening suction cups are symmetrically distributed on both sides of the upper bag opening suction cup.

[0014] Preferably, the driving mechanism includes a slide, which is slidably connected to the workbench through a slide rail and driven to slide by a first cylinder. One side of the slide is connected to a screw rod for horizontal rotation perpendicular to the moving direction of the slide. The spiral directions of the two ends of the screw rod are opposite. The screw rod is driven to rotate by a stepper motor. Both ends of the screw rod are threadedly connected to sliders. The slider is slidably connected to the slide through the slide rail, and the two bag opening foot plates are fixedly connected to the two sliders respectively.

[0015] Preferably, it also includes a bag picking mechanism, which includes a plurality of bag picking suction cups driven by a bag picking cylinder to rise and fall synchronously, the bag picking cylinder is fixedly connected to one side of a movable frame, and the movable frame is driven by a linear drive mechanism to reciprocate between the bag storage and the bag opening lower suction cup; the bag opening cylinder is fixedly connected to the movable frame.

[0016] Preferably, there are four bag taking suction cups, and the layout positions of the four bag taking suction cups correspond to the four corners of the packaging bag respectively.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a bag opening mechanism for a moxa stick packaging machine, which has the following beneficial effects:

[0019] 1. The bag opening mechanism of the moxa stick packaging machine opens the packaging bag through the upper bag opening suction cup and the lower bag opening suction cup, and then the packaging bag is further opened by the bag opening foot plate, and is driven to be sleeved on the outer side of the bag opening tongue depressor, and the bag opening tongue depressor presses the lower edge of the bag opening, and under the joint action of the two bag opening foot plates and the bag opening tongue depressor, the material is pushed into the packaging bag, and the action is simple, thereby improving the packaging efficiency.

[0020] 2. The bag opening mechanism of the moxa stick packaging machine drives the bag taking suction cup to reciprocate between the bag storage warehouse and the bag opening station through a linear drive mechanism, and automatically places the packaging bags in the bag storage warehouse at the bag opening station to replace manual placement, thereby improving its automation level, reducing labor intensity, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the linear drive mechanism of the utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model;

[0023] Figure 3 It is a three-dimensional schematic diagram of the bag-opening tongue depressor of the utility model;

[0024] Figure 4It is a three-dimensional schematic diagram of the driving mechanism of the utility model.

[0025] In the figure: 2. Linear drive mechanism; 3. Workbench; 4. Bag taking suction cup; 5. Bag storage; 6. Upper suction cup for bag opening; 7. Movable frame; 8. First cylinder; 9. Stepper motor; 10. Screw; 11. Bag opening foot plate; 12. Lower suction cup for bag opening; 14. Slide; 15. Sliding block; 16. Tongue depressor for bag opening; 17. Second cylinder; 18. Bag opening cylinder; 19. Bag taking cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] See also Figure 1-4 As shown, a bag opening mechanism of a moxa stick packaging machine includes a workbench 3; a bag opening suction cup, which includes an upper bag opening suction cup 6 and a lower bag opening suction cup 12 that are arranged relatively to each other, the lower bag opening suction cup 12 is fixedly connected to the workbench 3, and the upper bag opening suction cup 6 is driven to rise and fall by a bag opening cylinder 18; a bag opening tongue depressor 16, the bag opening tongue depressor 16 is located on one side of the bag opening lower suction cup 12 and is driven to rise and fall by a second cylinder 17; a bag opening foot plate 11, there are two bag opening foot plates 11, the two bag opening foot plates 11 are parallel to each other, the two bag opening foot plates 11 are driven by a driving mechanism to approach or move away from each other, and reciprocate between the bag opening tongue depressor 16 and the bag opening lower suction cup 12 along the length direction thereof, so as to open the packaging bag and sleeve the packaging bag on the outer side of the bag opening tongue depressor 16. Specifically, in the initial state, the two bag opening foot plates 11 are both located above the bag opening tongue depressor 16; in the expanded state, the two bag opening foot plates 11 are respectively located on both sides of the bag opening tongue depressor 16. The bag opening upper suction cup 6 is a buffer vacuum suction cup.

[0028] When opening the packaging bag, the packaging bag is placed on the workbench 3 so that its opening is located between the upper suction cup 6 and the lower suction cup 12. The upper suction cup 6 is driven down to approach the packaging bag by the bag opening cylinder 18. The upper suction cup 6 and the lower suction cup 12 are started. The upper suction cup 6 and the lower suction cup 12 are respectively attached to the two sides of the bag opening of the packaging bag. The bag opening cylinder 18 is started to drive the upper suction cup 6 to rise to open the bag opening.

[0029] The driving mechanism drives the two bag opening foot plates 11 to move toward the lower bag opening suction cup 12 and extend into the packaging bag from the opened bag mouth. Then, the driving mechanism drives the two bag opening foot plates 11 to move away from each other to open the packaging bag, and controls the upper bag opening suction cup 6 and the lower bag opening suction cup 12 to separate from the suction of the packaging bag.

[0030] The second cylinder 17 drives the bag opening tongue depressor 16 to rise so that its height corresponds to the height of the bag opening. Then the driving mechanism drives the two bag opening foot plates 11 to drive the opened bag to be sleeved on the outside of the bag opening tongue depressor 16. Then the bag opening tongue depressor 16 presses the lower edge of the bag opening to push the material into the bag.

[0031] Preferably, there are two lower bag opening suction cups 12, which are symmetrically distributed on both sides of the upper bag opening suction cup 6. By providing two lower bag opening suction cups 12 and one upper bag opening suction cup 6, the bag opening of the packaging bag is stretched into a triangle under the action of the three suction cups, so that the bag opening foot plate 11 can extend into the packaging bag.

[0032] In some embodiments, the driving mechanism includes a slide 14, which is slidably connected to the workbench 3 through a slide rail and driven to slide by the first cylinder 8. One side of the slide 14 is connected to a screw rod 10 for horizontal rotation perpendicular to the moving direction of the slide 14. The spiral directions of the two ends of the screw rod 10 are opposite. The screw rod 10 is driven to rotate by a stepper motor 9. The outer side of the screw rod 10 is threadedly connected to two sliders 15. The sliders 15 are slidably connected to the slide 14 through the slide rail, and the two bag opening foot plates 11 are fixedly connected to the two sliders 15 respectively.

[0033] When the bag opening foot plate 11 is driven by the driving mechanism to open the packaging bag, the first cylinder 8 is first started to extend, and the first cylinder 8 drives the bag opening foot plate 11 to move toward the lower bag opening suction cup 12 and extend into the packaging bag from the opened bag mouth, and then the stepping motor 9 drives the screw rod 10 to rotate. Under the action of the thread, the screw rod 10 drives the two sliders 15 to move away from each other, thereby driving the two bag opening foot plates 11 to open the packaging bag, and finally the second cylinder 17 drives the bag opening tongue depressor 16 to rise, and the first cylinder 8 contracts to drive the bag opening foot plate 11 to move toward the bag opening tongue depressor 16, and the two bag opening foot plates 11 drive the packaging bag to be sleeved on the outside of the bag opening tongue depressor 16.

[0034] In some embodiments, in order to realize automatic placement of packaging bags, a bag taking mechanism is also included, which includes a plurality of bag taking suction cups 4 driven to rise and fall synchronously by bag taking cylinders 19, and the bag taking cylinders 19 are fixedly connected to one side of the movable frame 7, and the movable frame 7 is driven by the linear drive mechanism 2 to reciprocate between the bag storage 5 and the lower bag opening suction cup 12. Among them, the bag taking suction cup 4 adopts a buffer vacuum suction cup.

[0035] When taking a bag, the linear drive mechanism 2 drives the bag taking suction cup 4 to move to the top of the bag storage 5, and the bag taking cylinder 19 drives the bag taking suction cup 4 to descend into the bag storage 5, and the bag taking suction cup 4 is started to absorb and take the material, and the bag taking suction cup 4 sucks up the packaging bag, and then transfers and places it on the lower bag opening suction cup 12. At the same time, in order to prevent the upper bag opening suction cup 6 from blocking the transfer of the packaging bag, the bag opening cylinder 18 is fixedly connected to the movable frame 7. When the upper bag opening suction cup 6 and the lower bag opening suction cup 12 are needed to perform the bag opening operation, the linear drive mechanism 2 drives the upper bag opening suction cup 6 to move to a position corresponding to the lower bag opening suction cup 12.

[0036] In order to prevent the packaging bag from folding during the process of taking and placing, which would affect the opening of the packaging bag, there are four bag-taking suction cups 4, and the layout positions of the four bag-taking suction cups 4 correspond to the four corners of the packaging bag respectively.

[0037] Working principle: Bag taking: The bag taking suction cup 4 is driven by the linear drive mechanism 2 to move to the top of the bag storage warehouse 5, and the bag taking cylinder 19 drives the bag taking suction cup 4 to descend into the bag storage warehouse 5, and the bag taking suction cup 4 is started to adsorb and take the bag. The bag taking suction cup 4 sucks up the packaging bag, and then transfers it and places it on the suction cup 12 under the bag opening.

[0038] Opening: The upper suction cup 6 for bag opening is driven to move to a position corresponding to the lower suction cup 12 for bag opening by the linear drive mechanism 2, and the upper suction cup 6 for bag opening is driven to descend and approach the packaging bag by the bag opening cylinder 18, and the upper suction cup 6 for bag opening and the lower suction cup 12 for bag opening are started, and the upper suction cup 6 for bag opening and the lower suction cup 12 for bag opening are respectively adsorbed on both sides of the bag opening of the packaging bag, and the bag opening cylinder 18 is started to drive the upper suction cup 6 for bag opening to rise and open the bag opening;

[0039] Opening: Start the first cylinder 8 to extend and drive the two bag opening foot plates 11 to move toward the lower bag opening suction cup 12 and extend into the packaging bag from the opened bag mouth, then the stepping motor 9 drives the screw rod 10 to rotate, under the action of the thread, the screw rod 10 drives the two sliders 15 to move away from each other, thereby driving the two bag opening foot plates 11 to open the packaging bag, and in this process, the upper bag opening suction cup 6 and the lower bag opening suction cup 12 are controlled to separate from the adsorption of the packaging bag;

[0040] Pressing edge: The second cylinder 17 drives the bag opening tongue depressor 16 to rise so that its height corresponds to the height of the bag mouth. Then the first cylinder 8 contracts and drives the two bag opening foot plates 11 to drive the stretched bag to be sleeved on the outside of the bag opening tongue depressor 16. Then the bag opening tongue depressor 16 presses the lower edge of the bag mouth. Under the joint action of the bag opening foot plates 11 and the bag opening tongue depressor 16, wrinkles on the edge of the bag are prevented when pushing the material into the bag, which affects the entry of the material.

[0041] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag opening mechanism for a moxa stick packaging machine, characterized in that: include: Workbench (3); A bag opening suction cup, the bag opening suction cup comprising an upper bag opening suction cup (6) and a lower bag opening suction cup (12) arranged relatively to each other, the lower bag opening suction cup (12) being fixedly connected to the workbench (3), and the upper bag opening suction cup (6) being driven to rise and fall by a bag opening cylinder (18); A bag opening tongue depressor (16), the bag opening tongue depressor (16) being located on one side of the bag opening lower suction cup (12) and driven to rise and fall by a second air cylinder (17); There are two bag opening foot plates (11), the two bag opening foot plates (11) are parallel to each other, the two bag opening foot plates (11) are driven by a driving mechanism to move closer to or farther from each other, and to make reciprocating motion between the bag opening tongue depressor (16) and the bag opening lower suction cup (12) along their length direction, so as to open the packaging bag and sleeve it on the outer side of the bag opening tongue depressor (16).

2. The bag opening mechanism of the moxa stick packaging machine according to claim 1, characterized in that: Initial state: the two bag opening foot plates (11) are both located above the bag opening tongue depressor (16); expanded state: the two bag opening foot plates (11) are respectively located on both sides of the bag opening tongue depressor (16).

3. The bag opening mechanism of the moxa stick packaging machine according to claim 1, characterized in that: There are two lower bag opening suction cups (12), and the two lower bag opening suction cups (12) are symmetrically distributed on both sides of the upper bag opening suction cup (6).

4. The bag opening mechanism of the moxa stick packaging machine according to claim 1, characterized in that: The driving mechanism comprises a slide (14), the slide (14) is slidably connected to the workbench (3) via a slide rail and driven to slide by a first cylinder (8), one side of the slide (14) is connected to a screw rod (10) for horizontal rotation perpendicular to the moving direction of the slide (14), the two ends of the screw rod (10) have opposite spiral directions, the screw rod (10) is driven to rotate by a stepping motor (9), both ends of the screw rod (10) are threadedly connected to a slider (15), the slider (15) is slidably connected to the slide (14) via the slide rail, and the two bag opening foot plates (11) are fixedly connected to the two sliders (15) respectively.

5. The bag opening mechanism of the moxa stick packaging machine according to claim 1, characterized in that: It also includes a bag taking mechanism, the bag taking mechanism including a plurality of bag taking suction cups (4) driven by a bag taking cylinder (19) to rise and fall synchronously, the bag taking cylinder (19) being fixedly connected to one side of a movable frame (7), the movable frame (7) being driven by a linear drive mechanism (2) to perform reciprocating motion between the bag storage (5) and the bag opening lower suction cup (12); the bag opening cylinder (18) being fixedly connected to the movable frame (7).

6. The bag opening mechanism of the moxa stick packaging machine according to claim 5, characterized in that: There are four bag-taking suction cups (4), and the layout positions of the four bag-taking suction cups (4) respectively correspond to the four corners of the packaging bag.

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