Packaging bag pulling device

Abstract

The utility model provides a packaging bag pulling device which comprises a containing frame, notches are formed in one ends of the two sides of the containing frame, first connecting rods are hinged to the other ends of the two sides of the containing frame, a second connecting rod is arranged between the first connecting rods, a first suction cup is arranged on the second connecting rod, and when the first connecting rods rotate towards the notches to be parallel to the containing frame, the first suction cup is arranged on the second connecting rod; the second connecting rod is located in the notch, and the adsorption hole of the first suction cup is perpendicular to the containing frame. The turnover mechanism is connected with the first connecting rod and used for driving the first connecting rod to rotate; the supporting frame is arranged on the two sides of the containing frame in a striding mode, the pair of first connecting rods are located in the supporting frame, a preset distance is formed between the hinged positions of the supporting frame and the first connecting rods in the horizontal direction, the top of the supporting frame is connected with a first air cylinder, and the telescopic end of the first air cylinder is connected with a second suction cup. According to the device, the packaging bag can be automatically pulled open after being sucked up, and the efficiency of pulling open the packaging bag during packaging is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of food packaging, in particular to a packaging bag opening device. Background Art

[0002] In the seasoning production process, some soups and oils are usually packaged in bags. During the packaging process, the bag needs to be opened, and then the seasoning is poured into the bag, and finally the bag is sealed to complete the initial packaging. At present, when packaging, one staff member usually opens the bag and keeps the bag open, and then another person pours the seasoning in, which is labor-intensive and inefficient. Some factories use symmetrically set suction cups to absorb the bag from both sides of the bag to open the bag, without manually fixing the bag, but the staff still needs to repeatedly put the bag between the two suction cups, and the degree of automation is low, so it is necessary to improve it. Utility Model Content

[0003] In order to solve the above-mentioned defects of the prior art, the present application provides a packaging bag opening device, which can automatically open the packaging bag after sucking up the packaging bag, thereby improving the efficiency of opening the packaging bag during packaging.

[0004] In order to achieve the above purpose, the utility model adopts the following technologies:

[0005] A packaging bag opening device, comprising:

[0006] A containing frame is used to contain the packaging bag, one end of each of the two sides of the containing frame is provided with a notch, and the other end of each of the two sides of the containing frame is hinged with a first connecting rod, a second connecting rod is provided between the first connecting rods, and a first suction cup is provided on the second connecting rod. When the first connecting rod is rotated toward the notch to be parallel to the containing frame, the second connecting rod is in the notch, and the suction hole of the first suction cup is perpendicular to the containing frame;

[0007] A flipping mechanism, connected to the first connecting rod, and used to drive the first connecting rod to rotate;

[0008] The support frame is arranged across both sides of the containing frame, a pair of first connecting rods are in the support frame, and the hinge between the support frame and the first connecting rod has a preset distance in the horizontal direction. The top of the support frame is connected to a first cylinder, and the telescopic end of the first cylinder is connected to a second suction cup. The telescopic direction of the telescopic end of the first cylinder is parallel to the length direction of the containing frame. When the first connecting rod is rotated upward to be perpendicular to the containing frame, the first suction cup and the second suction cup have the same height, and the suction hole of the first suction cup faces the suction hole of the second suction cup.

[0009] Furthermore, the bottom of the support frame is connected to two sides of the accommodating frame through a pair of connecting blocks. When the first connecting rod is rotated downward to be parallel to the accommodating frame, the first connecting rod abuts against the connecting blocks.

[0010] Furthermore, the flipping mechanism includes a second cylinder and a third connecting rod, the third connecting rod is arranged between a pair of vertical plates, the pair of vertical plates are respectively connected to a pair of first connecting rods, the telescopic end of the second cylinder is rotatably connected to the third connecting rod, the fixed end of the second cylinder is hinged to a fixed rod, the rotation axis of the fixed end of the second cylinder is parallel to the axis of the third connecting rod, the fixed rod is fixed on the containing frame, when the telescopic end of the second cylinder is pushed out, the first connecting rod rotates downward to be parallel to the containing frame, and when the telescopic end of the second cylinder is retracted, the first connecting rod rotates upward to be perpendicular to the containing frame.

[0011] Furthermore, the fixing rod is V-shaped with an inner angle greater than 90 degrees, one end of which is connected to the containing frame, and the other end of which is hinged to the fixed end of the second cylinder. When the telescopic end of the second cylinder is retracted, the height of the top of the other end is higher than the height of the third connecting rod.

[0012] Furthermore, a rectangular block is provided on the second connecting rod, a plurality of guide columns are passed through the rectangular block, one end of the guide column is connected to the first suction cup, a spring is sleeved outside the guide column, one end of the spring is connected to the rectangular block, and the other end of the spring is connected to the first suction cup.

[0013] The beneficial effects of the utility model are:

[0014] 1. The device can suck up the packaging bag and automatically open the packaging bag, thereby improving the efficiency of opening the packaging bag during packaging.

[0015] 2. When there are many stacked packaging bags in the containing frame, after the first suction cup contacts the topmost packaging bag, the first suction cup can squeeze the spring and continue to move downward to be parallel to the containing frame, so as to facilitate sucking up the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the device according to the embodiment of the present application.

[0017] Figure 2 It is a top view of the device according to an embodiment of the present application.

[0018] Figure 3 It is a partial structural stereogram of the device according to the embodiment of the present application.

[0019] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0020] Figure numerals: accommodating frame-1, first connecting rod-2, first suction cup-3, supporting frame-4, first cylinder-5, second suction cup-6, second cylinder-7, third connecting rod-8, fixing rod-9, notch-101, second connecting rod-201, rectangular block-202, guide column-203, spring-204, connecting block-401, vertical plate-801. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] The present application embodiment provides a packaging bag opening device, such as Figure 1-Figure 4 As shown, it includes a containing frame 1, a supporting frame 4, a turning mechanism, a first suction cup 3, a second suction cup 6, etc.

[0023] Specifically, the containing frame 1 is used to contain the packaging bag. A notch 101 is provided at one end of both sides of the containing frame 1. A first connecting rod 2 is hinged at the other end of both sides. A second connecting rod 201 is provided between the first connecting rods 2. The first suction cup 3 is provided on the second connecting rod 201. When the first connecting rod 2 is rotated toward the notch 101 to be parallel to the containing frame 1, the second connecting rod 201 is in the notch 101, and the suction hole of the first suction cup 3 is perpendicular to the containing frame 1. The flip mechanism is connected to the first connecting rod 2 and is used to drive the first connecting rod 2 to rotate. The support frame 4 is arranged across both sides of the containing frame 1, a pair of first connecting rods 2 are in the support frame 4, and the hinges between the support frame 4 and the first connecting rod 2 have a preset distance in the horizontal direction. The top of the support frame 4 is connected to a first cylinder 5, and the telescopic end of the first cylinder 5 is connected to the second suction cup 6. The telescopic direction of the telescopic end of the first cylinder 5 is parallel to the length direction of the containing frame 1. When the first connecting rod 2 is rotated upward to be perpendicular to the containing frame 1, the first suction cup 3 and the second suction cup 6 are at the same height, and the suction hole of the first suction cup 3 faces the suction hole of the second suction cup 6.

[0024] During actual use, the packaging bags are stacked in the accommodating frame 1 so that the open end of the packaging bags is at one end of the first connecting rod 2 hinged on the accommodating frame 1. When the packaging bags need to be used, the flipping mechanism is controlled to drive the first connecting rod 2 to rotate downward until it abuts against the top packaging bag in the accommodating frame 1, and the first suction cup 3 is controlled to adsorb one side of the packaging bag. Then, the flipping mechanism is controlled to drive the first connecting rod to rotate upward until it is perpendicular to the accommodating frame 1. Then, the telescopic end of the first cylinder 5 is controlled to be pushed out so that the second suction cup 6 adsorbs the other side of the packaging bag. Finally, the telescopic end of the first cylinder 5 is controlled to retract to open the packaging bag and pack the condiments.

[0025] For details, see Figure 1 , Figure 2 The bottom of the support frame 4 is connected to the two sides of the accommodating frame 1 through a pair of connecting blocks 401. When the first connecting rod 2 rotates downward to be parallel to the accommodating frame 1, the first connecting rod 2 abuts against the connecting blocks 401 to limit the maximum downward rotation of the first connecting rod 2.

[0026] For details, see Figure 1 , Figure 3 The flipping mechanism includes a second cylinder 7 and a third connecting rod 8. The third connecting rod 8 is arranged between a pair of vertical plates 801. The pair of vertical plates 801 are respectively connected to a pair of first connecting rods 2. The telescopic end of the second cylinder 7 is rotatably connected to the third connecting rod 8. The fixed end of the second cylinder 7 is hinged to a fixed rod 9. The rotation axis of the fixed end of the second cylinder 7 is parallel to the axis of the third connecting rod 8. The fixed rod 9 is fixed on the containing frame 1. When the telescopic end of the second cylinder 7 is pushed out, the first connecting rod 2 rotates downward to be parallel to the containing frame 1. At this time, the first suction cup 3 abuts against the packaging bag and can suck up the packaging bag. When the telescopic end of the second cylinder 7 is retracted, the first connecting rod 2 rotates upward to be perpendicular to the containing frame 1. At this time, the first suction cup 3 and the second suction cup 6 are symmetrical to each other, and the packaging bag is between the first suction cup 3 and the second suction cup 6. For more details, refer to Figure 1 The fixed rod 9 is V-shaped, with an inner angle greater than 90 degrees. One end of the fixed rod 9 is connected to the accommodating frame 1, and the other end is set upward and hinged to the fixed end of the second cylinder 7. When the telescopic end of the second cylinder 7 is retracted, the height of the top of the other end is higher than the height of the third connecting rod 8. The second cylinder 7 rotates to the inside of the V-shaped fixed rod 9 to avoid blocking the third connecting rod 8 and interfering with the third connecting rod 8.

[0027] Preferably, see Figure 2 , Figure 4 , a rectangular block 202 is provided on the second connecting rod 201, and a plurality of guide posts 203 are provided on the rectangular block 202, one end of the guide post 203 is connected to the first suction cup 3, and a spring 204 is sleeved outside the guide post 203, one end of the spring 204 is connected to the rectangular block 202, and the other end of the spring 204 is connected to the first suction cup 3. When there are many packaging bags placed in the containing frame 1, when the first suction cup 3 abuts against the topmost packaging bag, the first connecting rod 2 may not be rotated to be parallel to the containing frame 1. At this time, the first suction cup 3 is in a tilted state, which will have a certain effect on the absorption of the packaging bag. After the spring 204 and the guide post 203 are provided, when the first suction cup 3 abuts against the topmost packaging bag, the first suction cup 3 can squeeze the spring 204 and continue to move downward to be parallel to the containing frame 1, so as to facilitate the absorption of the packaging bag.

[0028] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A packaging bag opening device, characterized in that: include: A containing frame (1) for containing packaging bags, one end of each of its two sides is provided with a notch (101), the other end of each of its two sides is hinged with a first connecting rod (2), a second connecting rod (201) is provided between the first connecting rods (2), a first suction cup (3) is provided on the second connecting rod (201), when the first connecting rod (2) is rotated toward the notch (101) to be parallel to the containing frame (1), the second connecting rod (201) is located in the notch (101), and the suction hole of the first suction cup (3) is perpendicular to the containing frame (1); A turning mechanism connected to the first connecting rod (2) and used to drive the first connecting rod (2) to rotate; A support frame (4) is arranged across two sides of the containing frame (1); a pair of first connecting rods (2) are located inside the support frame (4); a hinge between the support frame (4) and the first connecting rod (2) has a preset distance in the horizontal direction; the top of the support frame (4) is connected to a first cylinder (5); the telescopic end of the first cylinder (5) is connected to a second suction cup (6); the telescopic direction of the telescopic end of the first cylinder (5) is parallel to the length direction of the containing frame (1); when the first connecting rod (2) is rotated upward to be perpendicular to the containing frame (1), the first suction cup (3) and the second suction cup (6) are at the same height, and the suction hole of the first suction cup (3) faces the suction hole of the second suction cup (6).

2. A packaging bag opening device according to claim 1, characterized in that: The bottom of the support frame (4) is connected to two sides of the accommodating frame (1) via a pair of connecting blocks (401); when the first connecting rod (2) is rotated downward to be parallel to the accommodating frame (1), the first connecting rod (2) abuts against the connecting blocks (401).

3. The packaging bag opening device according to claim 1, characterized in that: The flip mechanism comprises a second cylinder (7) and a third connecting rod (8), wherein the third connecting rod (8) is arranged between a pair of vertical plates (801), the pair of vertical plates (801) are respectively connected to a pair of first connecting rods (2), the telescopic end of the second cylinder (7) is rotatably connected to the third connecting rod (8), the fixed end of the second cylinder (7) is hinged to a fixed rod (9), the rotation axis of the fixed end of the second cylinder (7) is parallel to the axis of the third connecting rod (8), the fixed rod (9) is fixed to the containing frame (1), when the telescopic end of the second cylinder (7) is pushed out, the first connecting rod (2) rotates downward to be parallel to the containing frame (1), and when the telescopic end of the second cylinder (7) is retracted, the first connecting rod (2) rotates upward to be perpendicular to the containing frame (1).

4. A packaging bag opening device according to claim 3, characterized in that: The fixing rod (9) is V-shaped, with an inner angle greater than 90 degrees, one end of which is connected to the containing frame (1), and the other end of which is hinged to the fixing end of the second cylinder (7); when the telescopic end of the second cylinder (7) is retracted, the height of the top of the other end is higher than the height of the third connecting rod (8).

5. The packaging bag opening device according to claim 1, characterized in that: A rectangular block (202) is provided on the second connecting rod (201), a plurality of guide columns (203) are provided on the rectangular block (202), one end of the guide column (203) is connected to the first suction cup (3), a spring (204) is sleeved outside the guide column (203), one end of the spring (204) is connected to the rectangular block (202), and the other end of the spring (204) is connected to the first suction cup (3).

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