Bag taking and opening device of horizontal packaging machine

Abstract

The utility model discloses a bag taking and opening device of a horizontal packaging machine, and relates to the technical field of bagging of full-automatic packaging machines, the bag taking and opening device comprises a square frame, air cylinders are fixedly installed on the left side wall and the right side wall of the square frame, and clamping assemblies used for clamping the two sides of a packaging bag are fixedly installed at the bottom of the square frame in a bilateral symmetry mode. The bottom of the clamping assembly is fixedly connected with an opening assembly for opening a packaging bag. A fixing frame is fixedly connected to the center of the square frame, a first pneumatic rod is fixedly connected to the bottom of the fixing frame, and a plurality of second pneumatic rods are fixedly arranged at the lower end of the first pneumatic rod in a surrounding mode; a piston is movably connected in a cavity of the inflator, and air holes are formed in the upper end and the lower end, located at the piston, of the cavity of the inflator; an air hole in the upper end of the air cylinder is fixedly connected with a second air pipe, and the other end of the second air pipe penetrates through the fixing frame to communicate with the first pneumatic rod. The other end of the first air pipe is fixedly connected to the opening assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of bagging by full-automatic packaging machines, in particular to a bag taking and opening device for a horizontal packaging machine. Background Art

[0002] The bag removal and opening mechanism of a horizontal packaging machine is an automated bagging system. It primarily consists of a bag removal assembly, a control system, and a bag opening unit. The bag removal assembly is responsible for accurately transporting bags from their initial storage location to the filling station. The control system, using high-precision equipment such as sensors and servo motors, monitors the entire process, ensuring accurate and rapid transfer of bags from storage to the filling station. The bag opening unit uses suction or a mechanical mechanism to open the bag opening, preparing it for the subsequent filling process. This design enables fast, efficient, and precisely automated packaging processes.

[0003] The Chinese utility model with publication number CN219215601U proposes a blowing device for a horizontal fully automatic packaging machine, comprising a square frame, a bag opening mechanism arranged below the square frame for opening the bag mouth of a premade bag, and a blowing mechanism for fully opening the premade bag. The bag opening mechanism comprises two hollow blocks that slide horizontally relative to each other and are located on both sides of the bag mouth of the premade bag, and a bracket arranged on the hollow block, wherein one side of the hollow block is provided with two rubber pads for fitting the edge of the bag mouth of the premade bag, a slider fixed to the rubber pad slides inside the hollow block, and the two rubber pads slide horizontally relative to each other along the length direction of the hollow block, and the provided fixed frame ensures that the hollow column can only be raised and lowered along the height direction of the fixed frame, or the square frame can be raised and lowered or rotated by extending and retracting the hydraulic rod and rotating the hydraulic rod driven by a motor, so that the device is completely staggered with the packaging machine to ensure smooth packaging of the material.

[0004] However, the above practicality still has shortcomings:

[0005] 1. This utility model uses rubber sheets moving in opposite directions to "rub open" the packaging bag during use. However, for packaging bags with poor ductility, this operation may leave wrinkles on the packaging bag.

[0006] 2. This new type of packaging adopts the method of "air support" to open the packaging bag. This operation increases the risk of external air entering the interior of the packaging bag, thereby posing a risk of contamination to the packaging bag. Utility Model Content

[0007] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention proposes a bag taking and opening device for a horizontal packaging machine, which solves the problems mentioned in the background art.

[0008] In order to achieve the above purpose, the utility model proposes a bag taking and opening device for a horizontal packaging machine.

[0009] As a further solution of the utility model:

[0010] The bag-taking and bag-opening device of the horizontal packaging machine comprises a square frame, the left and right side walls of which are fixedly mounted with air cylinders, the bottom of which is symmetrically mounted with clamping assemblies for clamping the two sides of the packaging bag, and the bottom of which is fixedly connected with an opening assembly for opening the packaging bag;

[0011] A fixing frame is fixedly connected to the center of the square frame, a first pneumatic rod is fixedly connected to the bottom of the fixing frame, and a plurality of second pneumatic rods are fixedly arranged around the lower end of the first pneumatic rod;

[0012] The piston is movably connected in the cavity of the air cylinder, and the cavity of the air cylinder is provided with air holes at the upper and lower ends of the piston; the air hole at the upper end of the air cylinder is fixedly connected to the second air pipe, and the other end of the second air pipe passes through the fixing frame and is connected to the first pneumatic rod; the air hole at the lower end of the air cylinder is fixedly connected to the first air pipe, and the other end of the first air pipe is fixedly connected to the opening component.

[0013] Furthermore, the clamping assembly includes a mounting frame, which is symmetrically and vertically fixed on the left and right ends of the bottom of the square frame. A sliding groove is provided at the lower end of the mounting frame, and a first screw rod is rotatably connected in the sliding groove. One end of the first screw rod passes through the side wall of the mounting frame and is fixedly connected to the first motor; the outer side of the first screw rod is symmetrically provided with threads front and back and is symmetrically threaded with threads for fixing the electric telescopic machine.

[0014] Furthermore, the opening component includes a fixed frame, which is fixedly installed at the bottom center of the mounting frame. The top of the fixed frame is rotatably connected to a second screw rod, one end of the second screw rod passes through the side wall of the fixed frame and is fixedly connected to a second motor, the second screw rod is threadedly connected to a sliding block, the bottom of the sliding block is fixedly connected to an air pipe, and the inner end of the air pipe is fixedly connected to a suction cup.

[0015] Furthermore, the first air pipe is connected to the air pipe and the air cylinder.

[0016] Furthermore, the piston in the cylinder is electrically controlled and its motion path is an up and down linear reciprocating motion.

[0017] Furthermore, the cavities of the first pneumatic rod and the second pneumatic rod are communicated.

[0018] Furthermore, a guide shoe is fixedly connected to the bottom of the first pneumatic rod to facilitate the first pneumatic rod to enter the packaging bag.

[0019] Furthermore, the end of the second pneumatic rod is rollingly connected to a rotor.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The second motor drives the second screw rod to rotate, causing the sliding block to translate forward, causing the air tube to move inward, and causing the suction cup to abut against the left and right sides of the packaging bag; the piston in the air cylinder translates upward, causing negative pressure to be formed in the air tube, and the suction cup sucks the left and right sides of the packaging bag tightly, and then the second motor drives the second screw rod to rotate, causing the sliding block to move outward with the air tube, thereby tearing open the opening of the packaging bag, and the gas in the air cylinder enters the first pneumatic rod from the second air tube, the first pneumatic rod extends, and the guide shoe carries the first pneumatic rod into the opening of the packaging bag, and then the gas enters the second pneumatic rod and extends, thereby completely opening the opening of the packaging bag, and the piston in the air cylinder moves downward, causing the first pneumatic rod and the second pneumatic rod to contract and be located on the outside of the packaging bag, and at the same time the negative pressure in the suction cup is released, thereby loosening the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional Figure 1 ;

[0023] Figure 2 The three-dimensional Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the opening component structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the present utility model;

[0026] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0027] In the figure: 1. Square frame; 2. Clamping assembly; 21. Mounting frame; 22. Sliding groove; 23. First screw rod; 24. Electric telescopic machine; 25. First motor; 3. Opening assembly; 31. Fixed frame; 32. Second screw rod; 33. Second motor; 34. Sliding block; 35. Air pipe; 36. Suction cup; 4. First air pipe; 5. Second air pipe; 6. Air cylinder; 7. Fixed frame; 8. First pneumatic rod; 9. Guide shoe; 10. Second pneumatic rod; 11. Rotor. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. 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.

[0029] like Figure 1-5 As shown, the bag taking and opening device of the horizontal packaging machine includes a square frame 1, and air cylinders 6 are fixedly installed on the left and right side walls of the square frame 1. Clamping components 2 for clamping the two sides of the packaging bag are fixedly installed on the bottom of the square frame 1 symmetrically. The bottom of the clamping component 2 is fixedly connected to an opening component 3 for opening the packaging bag.

[0030] A fixing frame 7 is fixedly connected to the center of the square frame 1, and a first pneumatic rod 8 is fixedly connected to the bottom of the fixing frame 7. A plurality of second pneumatic rods 10 are fixedly arranged around the lower end of the first pneumatic rod 8;

[0031] The piston is movably connected in the cavity of the air cylinder 6, and the cavity of the air cylinder 6 is provided with air holes at the upper and lower ends of the piston; the air hole at the upper end of the air cylinder 6 is fixedly connected to the second air pipe 5, and the other end of the second air pipe 5 passes through the fixing frame 7 and is connected to the first pneumatic rod 8; the air hole at the lower end of the air cylinder 6 is fixedly connected to the first air pipe 4, and the other end of the first air pipe 4 is fixedly connected to the opening component 3.

[0032] Preferably, the clamping assembly 2 includes a mounting frame 21, and the mounting frame 21 is symmetrically and vertically fixedly installed on the left and right ends of the bottom of the square frame 1. A sliding groove 22 is provided at the lower end of the mounting frame 21, and a first screw rod 23 is rotatably connected in the sliding groove 22. One end of the first screw rod 23 passes through the side wall of the mounting frame 21 and is fixedly connected to a first motor 25; the outer side of the first screw rod 23 is symmetrically provided with threads front and back and is symmetrically threaded with a screw rod for fixing an electric telescopic machine 24.

[0033] Preferably, the opening component 3 includes a fixed frame 31, which is fixedly installed at the bottom center of the mounting frame 21. The top of the fixed frame 31 is rotatably connected to a second screw rod 32, one end of the second screw rod 32 passes through the side wall of the fixed frame 31 and is fixedly connected to a second motor 33, the second screw rod 32 is threadedly connected to a sliding block 34, the bottom of the sliding block 34 is fixedly connected to an air pipe 35, and the inner end of the air pipe 35 is fixedly connected to a suction cup 36.

[0034] Preferably, the first air pipe 4 is connected to the air pipe 35 and the air cylinder 6 .

[0035] Preferably, the piston in the gas cylinder 6 is electrically controlled and its movement path is an up and down linear reciprocating motion.

[0036] Preferably, the cavities of the first pneumatic rod 8 and the second pneumatic rod 10 are connected.

[0037] Preferably, a guide shoe 9 is fixedly connected to the bottom of the first pneumatic rod 8 to facilitate the first pneumatic rod 8 to enter the packaging bag.

[0038] Preferably, the end of the second pneumatic rod 10 is rollingly connected to a rotor 11 .

[0039] Working principle:

[0040] During use, an unopened packaging bag is horizontally inserted between the clamping components 2, and the first motor 25 drives the first screw 23 to rotate. The front and rear symmetrical threads on the surface of the first screw 23 cause the electric telescopic mechanism 24 to move in a mirrored manner, so that the electric telescopic mechanism 24 is exactly located at the edges of the packaging bag. The electric telescopic mechanism 24 then extends and abuts the left and right sides of the packaging bag, thereby securing the packaging bag.

[0041] At this time, the second motor 33 drives the second screw rod 32 to rotate, causing the sliding block 34 to translate forward, causing the air tube 35 to move inward, and causing the suction cups 36 to abut against the left and right sides of the packaging bag; the piston in the air cylinder 6 translates upward, causing negative pressure to form in the air tube 35, and the suction cups 36 to tightly suck the left and right sides of the packaging bag. Then, the second motor 33 drives the second screw rod 32 to rotate, causing the sliding block 34 to move outward with the air tube 35, thereby tearing the opening of the packaging bag;

[0042] At the same time, the gas in the gas cylinder 6 enters the first pneumatic rod 8 from the second gas pipe 5. The first pneumatic rod 8 extends, and the guide shoe 9 brings the first pneumatic rod 8 into the opening of the packaging bag. Then, the second pneumatic rod 10 enters the gas and extends, thereby completely opening the opening of the packaging bag.

[0043] The piston in the air cylinder 6 moves downward, causing the first pneumatic rod 8 and the second pneumatic rod 10 to contract and be located outside the packaging bag. At the same time, the negative pressure in the suction cup 36 is released, thereby releasing the packaging bag.

[0044] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. The bag taking and opening device of the horizontal packaging machine is characterized by: The invention comprises a square frame (1), wherein air cylinders (6) are fixedly mounted on the left and right side walls of the square frame (1), and clamping assemblies (2) for clamping two sides of a packaging bag are fixedly mounted symmetrically on the bottom of the square frame (1), and an opening assembly (3) for opening the packaging bag is fixedly connected to the bottom of the clamping assembly (2); The center of the square frame (1) is fixedly connected to a fixing frame (7), the bottom of the fixing frame (7) is fixedly connected to a first pneumatic rod (8), and a plurality of second pneumatic rods (10) are fixedly arranged around the lower end of the first pneumatic rod (8); A piston is movably connected in the cavity of the gas cylinder (6), and air holes are provided at both upper and lower ends of the piston in the cavity of the gas cylinder (6); the air hole at the upper end of the gas cylinder (6) is fixedly connected to a second air pipe (5), and the other end of the second air pipe (5) passes through the fixing frame (7) and is connected to the first pneumatic rod (8); the air hole at the lower end of the gas cylinder (6) is fixedly connected to a first air pipe (4), and the other end of the first air pipe (4) is fixedly connected to the opening component (3).

2. The bag taking and opening device of the horizontal packaging machine according to claim 1, characterized in that: The clamping assembly (2) includes a mounting frame (21), and the mounting frame (21) is symmetrically and vertically fixedly mounted on the left and right ends of the bottom of the square frame (1); a sliding groove (22) is provided at the lower end of the mounting frame (21), and a first screw rod (23) is rotatably connected in the sliding groove (22); one end of the first screw rod (23) passes through the side wall of the mounting frame (21) and is fixedly connected to a first motor (25); the outer side of the first screw rod (23) is symmetrically provided with threads in the front and rear directions and is symmetrically threaded in the front and rear directions for fixing an electric telescopic machine (24).

3. The bag taking and opening device of the horizontal packaging machine according to claim 2, characterized in that: The opening assembly (3) includes a fixed frame (31), the fixed frame (31) is fixedly mounted at the bottom center of the mounting frame (21), the top of the fixed frame (31) is rotatably connected to a second screw rod (32), one end of the second screw rod (32) passes through the side wall of the fixed frame (31) and is fixedly connected to a second motor (33), the second screw rod (32) is threadedly connected to a sliding block (34), the bottom of the sliding block (34) is fixedly connected to an air pipe (35), and the inner end of the air pipe (35) is fixedly connected to a suction cup (36).

4. The bag taking and opening device of the horizontal packaging machine according to claim 3, characterized in that: The first air pipe (4) is connected to the air pipe (35) and the air cylinder (6).

5. The bag taking and opening device of the horizontal packaging machine according to claim 4, characterized in that: The piston in the air cylinder (6) is electrically controlled and its movement path is an up-and-down linear reciprocating motion.

6. The bag taking and opening device of the horizontal packaging machine according to claim 5, characterized in that: The cavities of the first pneumatic rod (8) and the second pneumatic rod (10) are in communication.

7. The bag taking and opening device of the horizontal packaging machine according to claim 6, characterized in that: The bottom of the first pneumatic rod (8) is fixedly connected with a guide shoe (9) for facilitating the first pneumatic rod (8) to enter the packaging bag.

8. The bag taking and opening device of the horizontal packaging machine according to claim 7, characterized in that: The end of the second pneumatic rod (10) is rollingly connected to a rotor (11).

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