Bag opening flattening and clamping mechanism for discharging clamping bag of packaging machine

Abstract

The utility model belongs to the field of packaging machines, particularly relates to a bag opening flattening and clamping mechanism for a blanking clamping bag of a packaging machine, and provides the following scheme aiming at the problems that the clamping force of the existing clamping mechanism is insufficient, and when the clamping angle deviates, a packaging bag is easily broken by clamping, and the bag opening flattening and clamping mechanism comprises two fixing plates which are symmetrically arranged, the clamping device comprises two fixing plates, two symmetrically-arranged round rods are fixedly connected between the two fixing plates, the outer walls of the two round rods are each slidably sleeved with two symmetrically-arranged sliding sleeves, and the outer walls of the sliding sleeves are fixedly sleeved with mounting plates. The packaging bag can be flattened again, follow-up sealing is facilitated, the clamping assembly is arranged, the packaging bag can be clamped from the two sides, the two ends of an opening of the packaging bag are clamped in the horizontal direction, then the clamping stability is improved, and the clamping force can be conveniently controlled through the extending length of the first clamping rod and the extending length of the second clamping rod.

Description

Technical Field

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

[0002] Packaging bags are bags used to package various items, making it easy to transport and store goods during production and circulation. They are widely used in daily life and industrial production. Actual figures show that 80% of used plastic bags are eventually transported to garbage dumps like general garbage, and only 7% of plastics are recycled.

[0003] After searching, the invention with the announcement number CN116729719B discloses a rationally structured horizontal packaging machine, including a frame, on which are mounted a bag storage device, a bag taking device, a bag state conversion and bag opening device, a bag clamping and unfolding device, a filling device, a sealing device, and a bag transfer device. A packaging method, including the following steps: taking out the packaging bag and placing it in a flat state; rotating the packaging bag to a vertical upright state, opening the bag mouth of the packaging bag; transferring the packaging bag to a filling station, flattening the bag mouth of the packaging bag after filling the material; transferring the packaging bag to a sealing station, sealing the material to form a finished product for delivery. Compared with the prior art, the beneficial effect of the present invention is that due to the improvement of the structure of the horizontal packaging machine, its structure is more reasonable, and the actions required to be completed in each processing step are more balanced, so the time consumed in each processing step is similar, and the time interval required to wait for each processing equipment to complete each work is short, which is convenient for improving work efficiency.

[0004] The clamping mechanism of this device clamps the packaging bag through a rotating plate, but the clamping force of the rotating plate is insufficient during the clamping process. When the clamping angle deviates, the packaging bag is easily broken, which is inconvenient to use. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the clamping mechanism in the prior art that, when clamping the packaging bag, the packaging bag is clamped by a rotating plate, but the clamping force of the rotating plate is insufficient during the clamping process, and when the clamping angle deviates, the packaging bag is easily broken, which is inconvenient to use. A bag-opening flattening clamping mechanism for a packaging machine is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bag-opening flattening clamping mechanism for a packaging machine, comprising two symmetrically arranged fixing plates, two symmetrically arranged round rods are fixedly connected between the two fixing plates, the outer walls of the two round rods are both slidably sleeved with two symmetrically arranged sliding sleeves, the outer wall fixing sleeves of the sliding sleeves are provided with mounting plates, and the outer walls of the two mounting plates on the same side are fixedly connected with the same sliding plate;

[0008] A driving assembly, which is disposed between the two fixed plates and is used to control the spacing of the sliding plates;

[0009] The first rack and the second rack are slidably connected to each other on one side of the two sliding plates, and a rotating shaft is rotatably connected to one side of the sliding plate. A gear is fixedly sleeved on the outer wall of the rotating shaft, and the gear is located between the first rack and the second rack, and the first rack and the second rack are both meshed with the gear;

[0010] A clamping assembly is arranged at one end of the first rack and the second rack and is used to clamp the packaging bag.

[0011] In a possible design, the drive assembly includes a same bidirectional screw that is rotatably connected between two fixed plates, a threaded sleeve is embedded in the interior of the sliding plate, and the bidirectional screw thread passes through the threaded sleeve, and a servo motor is fixedly connected to one side of one of the fixed plates, and the output shaft of the servo motor is fixedly connected to one end of the bidirectional screw.

[0012] In a possible design, the clamping assembly includes a first connecting plate fixedly connected to one end of the first rack and a second connecting plate fixedly connected to one end of the second rack, a first clamping rod fixedly connected to one side of the bottom of the first connecting plate, a first clamping pad fixedly connected to one end of the first clamping rod, a second clamping rod fixedly connected to one side of the top of the second connecting plate, and a second clamping pad fixedly connected to one end of the second clamping rod.

[0013] In a possible design, a rubber pad is fixedly connected to one side of the first clamping pad and the second clamping pad that are close to each other.

[0014] In a possible design, a rectangular plate is fixedly connected to one side of the bottom of the second rack, two symmetrically arranged fixing sleeves are fixedly connected to one side of the sliding plate, the same electric push rod is fixedly connected between the two fixing sleeves, and the piston rod of the electric push rod is fixedly connected to one side of the rectangular plate.

[0015] In a possible design, the second clamping rod and the second connecting plate as well as the first connecting plate and the first clamping rod are all fixedly connected by screws.

[0016] In the present application, when the packaging bag moves between the second clamping pad and the first clamping pad, the electric push rod can be started, the piston rod of the electric push rod drives the rectangular plate to retract, the rectangular plate drives the second rack to move laterally, the second rack drives the gear to rotate, and the gear drives the first rack to move laterally;

[0017] At this time, the first rack and the second rack move in opposite directions, and the first rack drives the first connecting plate to move laterally, the first connecting plate drives the first clamping rod to move laterally, the first clamping rod drives the first clamping pad to move laterally, the second rack drives the second connecting plate to move laterally, the second connecting plate drives the second clamping rod to move laterally, and the second clamping rod drives the second clamping pad to move laterally. At this time, the second clamping pad and the first clamping pad approach each other and clamp the packaging bag, clamping the two ends of the opening of the packaging bag horizontally, thereby improving the clamping stability and making the clamping force greater. The extension lengths of the first clamping rod and the second clamping rod can be adjusted by different fixed positions, thereby conveniently controlling the clamping force.

[0018] Start the servo motor, and the output shaft of the servo motor drives the bidirectional screw to rotate, and the bidirectional screw drives the threaded sleeves to move away from each other. The two threaded sleeves can drive the two sliding plates to move away from each other. At this time, the two sliding plates drive the two fixed sleeves and the gears to move away from each other. At this time, the two sets of first clamping rods and second clamping rods move away from each other, which can make the packaging bag flat again to facilitate subsequent sealing.

[0019] Beneficial effects:

[0020] In the utility model, the bag-opening flattening clamping mechanism for a packaging machine can achieve the effect of driving two sliding plates to move closer to or away from each other through a driving component, thereby helping to flatten or unfold the packaging bag, facilitating the normal operation of material unloading and subsequent sealing;

[0021] In the utility model, the bag-opening flattening clamping mechanism for a packaging machine can achieve the effect of clamping the packaging bag from both sides by setting a clamping component, clamping the two ends of the opening of the packaging bag from the horizontal direction, thereby improving the clamping stability and making the clamping force stronger;

[0022] In the utility model, by setting a driving component, the two groups of first clamping rods and second clamping rods can be moved away from each other, so that the packaging bag can be flattened again to facilitate subsequent sealing. By setting a clamping component, the packaging bag can be clamped from both sides, and the two ends of the opening of the packaging bag can be clamped horizontally, thereby improving the clamping stability and increasing the clamping force. The extended lengths of the first clamping rod and the second clamping rod can be adjusted by different fixed positions, thereby making it convenient to control the clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a bag opening flattening clamping mechanism for a packaging machine proposed by the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of a fixed plate and a sliding plate in a bag opening flattening clamping mechanism for a packaging machine proposed by the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of a first rack and a second rack in a bag opening flattening clamping mechanism for a packaging machine proposed by the utility model.

[0026] In the figure: 1. sliding plate; 2. fixed plate; 3. servo motor; 4. bidirectional screw; 5. round rod; 6. mounting plate; 7. sliding sleeve; 8. rectangular plate; 9. first rack; 10. threaded sleeve; 11. rotating shaft; 12. first connecting plate; 13. first clamping rod; 14. first clamping pad; 15. second clamping pad; 16. second clamping rod; 17. second connecting plate; 18. fixed sleeve; 19. electric push rod; 20. second rack; 21. gear. DETAILED DESCRIPTION

[0027] 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.

[0028] Example 1

[0029] Reference Figure 1-3 A bag-opening flattening clamping mechanism comprises: two symmetrically arranged fixing plates 2, two symmetrically arranged round rods 5 are fixedly connected between the two fixing plates 2, the outer walls of the two round rods 5 are both slidably sleeved with two symmetrically arranged sliding sleeves 7, the outer walls of the sliding sleeves 7 are fixedly sleeved with mounting plates 6, and the outer walls of the two mounting plates 6 on the same side are fixedly connected with the same sliding plate 1.

[0030] By providing two round rods 5 , the moving path of the sliding plate 1 can be ensured to be stable.

[0031] The present technical scheme also includes a driving component, which is arranged between the two fixed plates 2 and is used to control the spacing of the sliding plates 1. The driving component includes the same bidirectional screw rod 4 which is rotatably connected between the two fixed plates 2. A threaded sleeve 10 is embedded in the interior of the sliding plate 1. The bidirectional screw rod 4 threads through the threaded sleeve 10. A servo motor 3 is fixedly connected to one side of one of the fixed plates 2. The output shaft of the servo motor 3 is fixedly connected to one end of the bidirectional screw rod 4. The servo motor 3 is started, and the output shaft of the servo motor 3 drives the bidirectional screw rod 4 to rotate. The bidirectional screw rod 4 drives the threaded sleeve 10 away from each other. The two threaded sleeves 10 can drive the two sliding plates 1 away from each other. At this time, the two sliding plates 1 drive the two fixed sleeves 18 and the gear 21 away from each other. At this time, the two groups of first clamping rods 13 and second clamping rods 16 move away from each other, so that the packaging bag can be flattened again to facilitate subsequent sealing.

[0032] The present technical solution also includes that the first rack 9 and the second rack 20 are slidably connected to one side of the two sliding plates 1 that are close to each other, and the rotating shaft 11 is rotatably connected to one side of the sliding plate 1. The outer wall fixed sleeve of the rotating shaft 11 is provided with a gear 21, and the gear 21 is located between the first rack 9 and the second rack 20. The first rack 9 and the second rack 20 are both meshed with the gear 21. A rectangular plate 8 is fixedly connected to one side of the bottom of the second rack 20, and two symmetrically arranged fixed sleeves 18 are fixedly connected to one side of the sliding plate 1. The same electric push rod 19 is fixedly connected between the two fixed sleeves 18, and the piston rod of the electric push rod 19 is fixedly connected to one side of the rectangular plate 8. When the packaging bag moves between the second clamping pad 15 and the first clamping pad 14, the electric push rod 19 can be started, and the piston rod of the electric push rod 19 drives the rectangular plate 8 to retract, and the rectangular plate 8 drives the second rack 20 to move laterally, the second rack 20 drives the gear 21 to rotate, and the gear 21 drives the first rack 9 to move laterally.

[0033] The technical solution also includes a clamping assembly, which is arranged at one end of the first rack 9 and the second rack 20 and is used to clamp the packaging bag. The clamping assembly includes a first connecting plate 12 fixedly connected to one end of the first rack 9 and a second connecting plate 17 fixedly connected to one end of the second rack 20. A first clamping rod 13 is fixedly connected to one side of the bottom of the first connecting plate 12, and a first clamping pad 14 is fixedly connected to one end of the first clamping rod 13. A second clamping rod 16 is fixedly connected to one side of the top of the second connecting plate 17, and a second clamping pad 15 is fixedly connected to one end of the second clamping rod 16. The first clamping pad 14 and the second clamping pad 15 are fixedly connected to each other on one side. A rubber pad is connected. At this time, the first rack 9 and the second rack 20 move in opposite directions. At this time, the first rack 9 drives the first connecting plate 12 to move laterally, the first connecting plate 12 drives the first clamping rod 13 to move laterally, the first clamping rod 13 drives the first clamping pad 14 to move laterally, the second rack 20 drives the second connecting plate 17 to move laterally, the second connecting plate 17 drives the second clamping rod 16 to move laterally, and the second clamping rod 16 drives the second clamping pad 15 to move laterally. At this time, the second clamping pad 15 and the first clamping pad 14 approach each other and clamp the packaging bag, clamping the two ends of the opening of the packaging bag from the horizontal direction, thereby improving the stability of the clamping and making the clamping force greater.

[0034] The present application can be used in the field of packaging machines, and can also be applied to other fields of the present application.

[0035] Example 2

[0036] refer to Figure 1-3 , improved on the basis of Example 1: a bag-opening flattening clamping mechanism for a packaging machine, which is used in the field of packaging machines, the second clamping rod 16 and the second connecting plate 17 as well as the first connecting plate 12 and the first clamping rod 13 are fixedly connected by screws, and the extension length of the first clamping rod 13 and the second clamping rod 16 can be adjusted by different fixed positions, thereby conveniently controlling the clamping force.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric push rod 19 and the servo motor 3 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bag-opening flattening clamping mechanism for a packaging machine, characterized in that: include: Two symmetrically arranged fixing plates (2), two symmetrically arranged round rods (5) are fixedly connected between the two fixing plates (2), the outer walls of the two round rods (5) are both slidably sleeved with two symmetrically arranged sliding sleeves (7), the outer walls of the sliding sleeves (7) are fixedly sleeved with mounting plates (6), and the outer walls of the two mounting plates (6) located on the same side are fixedly connected with the same sliding plate (1); A driving assembly, the driving assembly being arranged between the two fixed plates (2) and being used to control the spacing of the sliding plates (1); The first rack (9) and the second rack (20) are slidably connected to one side of the two sliding plates (1) close to each other, and a rotating shaft (11) is rotatably connected to one side of the sliding plate (1). A gear (21) is fixedly sleeved on the outer wall of the rotating shaft (11). The gear (21) is located between the first rack (9) and the second rack (20), and the first rack (9) and the second rack (20) are both meshed with the gear (21); A clamping assembly is arranged at one end of the first rack (9) and the second rack (20) and is used to clamp the packaging bag.

2. The bag opening flattening clamping mechanism for a packaging machine according to claim 1, characterized in that: The driving assembly comprises a same bidirectional screw (4) rotatably connected between two fixed plates (2); a threaded sleeve (10) is embedded in the interior of the sliding plate (1); the bidirectional screw (4) threadably penetrates the threaded sleeve (10); a servo motor (3) is fixedly connected to one side of one of the fixed plates (2); and an output shaft of the servo motor (3) is fixedly connected to one end of the bidirectional screw (4).

3. The bag opening flattening clamping mechanism for a packaging machine according to claim 1, characterized in that: The clamping assembly comprises a first connecting plate (12) fixedly connected to one end of a first rack (9) and a second connecting plate (17) fixedly connected to one end of a second rack (20); a first clamping rod (13) is fixedly connected to one side of the bottom of the first connecting plate (12); one end of the first clamping rod (13) is fixedly connected to a first clamping pad (14); a second clamping rod (16) is fixedly connected to one side of the top of the second connecting plate (17); one end of the second clamping rod (16) is fixedly connected to a second clamping pad (15).

4. The bag opening flattening clamping mechanism for a packaging machine according to claim 3, characterized in that: The first clamping pad (14) and the second clamping pad (15) are both fixedly connected to a rubber pad on one side close to each other.

5. The bag opening flattening clamping mechanism for a packaging machine according to claim 1, characterized in that: A rectangular plate (8) is fixedly connected to one side of the bottom of the second rack (20), two symmetrically arranged fixing sleeves (18) are fixedly connected to one side of the sliding plate (1), a same electric push rod (19) is fixedly connected between the two fixing sleeves (18), and a piston rod of the electric push rod (19) is fixedly connected to one side of the rectangular plate (8).

6. The bag opening flattening clamping mechanism for a packaging machine according to claim 3, characterized in that: The second clamping rod (16) and the second connecting plate (17) as well as the first connecting plate (12) and the first clamping rod (13) are all fixedly connected by screws.

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