Strip packaging machine

Abstract

The utility model discloses a strip packaging machine which aims at automatically gluing packaging paper and improving packaging efficiency and comprises an upper packaging mechanism, a lower packaging mechanism and a lifting mechanism, and the upper packaging mechanism can be driven by the lifting mechanism to ascend and descend. The upper packaging mechanism is used for packaging the upper portion of a to-be-packaged tissue, and the lower packaging mechanism is used for packaging the lower portion of the to-be-packaged tissue. The lower packaging mechanism comprises a lower front conveying belt, a packaging paper output device and a lower rear conveying belt, and the packaging paper output device is connected with the lower front conveying belt and the lower rear conveying belt. To-be-packaged tissues conveyed by the lower front conveying belt are conveyed to the lower rear conveying belt after being attached with packaging paper through the packaging paper output device, gluing modules are arranged on the two sides of the lower rear conveying belt in the conveying direction of the lower rear conveying belt correspondingly, and the gluing modules smear glue on the upward face of the packaging paper on the lower portions of the to-be-packaged tissues. Belongs to the technical field of packaging equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging equipment, and more specifically, relates to a strip packing machine. Background Art

[0002] Patent 202111356509.6 discloses a new type of strip packing machine, which includes a machine base, a lower part packaging mechanism, an adjusting mechanism and an upper part packaging mechanism. The lower part packaging mechanism is arranged on the top surface of the machine base; the lower part packaging mechanism is used for packaging the lower part of the paper towels to be packaged; the adjusting mechanism is installed parallel to the lower part packaging mechanism on the top surface of the machine base; the upper part packaging mechanism is erected directly above the lower part packaging mechanism through the adjusting mechanism; the upper part packaging mechanism is used for packaging the upper part of the paper towels to be packaged; the adjusting mechanism is used to adjust the matching height between the upper part packaging mechanism and the lower part packaging mechanism.

[0003] The above strip packing machine requires two mechanisms for outputting packaging paper, one for outputting packaging paper from top to bottom, and the other for outputting packaging paper from bottom to top. The packaging paper in the upper and lower parts cooperates to complete the packaging of the paper towels; the packaging paper in the upper and lower parts is generally fixed together by gluing. The above strip packing machine does not have a glue coating mechanism and is all coated with glue manually. Workers need to apply glue on the lower packaging paper before the upper and lower parts of the packaging paper are closed. After the upper and lower parts of the packaging paper are closed later, the fixation is completed. Manual glue coating has low efficiency and uneven quality. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a strip packing machine, aiming to automatically coat glue on the packaging paper and improve the packaging efficiency.

[0005] According to the first aspect of the utility model, a strip packing machine is provided, which includes an upper part packaging mechanism, a lower part packaging mechanism and a lifting mechanism. The upper part packaging mechanism can be lifted and lowered under the drive of the lifting mechanism; the upper part packaging mechanism is used for packaging the upper part of the paper towels to be packaged, and the lower part packaging mechanism is used for packaging the lower part of the paper towels to be packaged; the lower part packaging mechanism includes a lower front conveyor belt, a packaging paper output device and a lower rear conveyor belt. The packaging paper output device is connected to the lower front conveyor belt and the lower rear conveyor belt. The paper towels to be packaged conveyed by the lower front conveyor belt are attached with packaging paper through the packaging paper output device and then transferred to the lower rear conveyor belt. Glue coating modules are arranged on both sides of the lower rear conveyor belt along its conveying direction. The glue coating modules apply glue on the upward-facing surface of the packaging paper on the lower part of the paper towels to be packaged.

[0006] In the above-mentioned strip packing machine, two lower guiding plates are provided on the lower rear conveyor belt. The two lower guiding plates are located on both sides of the tissue paper to be packed along its moving direction. The top of the lower guiding plate is inclined upward along the conveying direction of the lower rear conveyor belt. The gluing module applies glue to the wrapping paper during the process of the wrapping paper moving along the top of the lower guiding plate.

[0007] In the above-mentioned strip packing machine, the gluing module includes a hot melt glue gun.

[0008] In the above-mentioned strip packing machine, the upper packaging mechanism includes an upper front conveyor belt, a wrapping paper output device, and an upper rear conveyor belt. The upper front conveyor belt and the upper rear conveyor belt are connected by the wrapping paper output device. The tissue paper to be packed conveyed by the upper front conveyor belt is attached with a wrapping paper through the wrapping paper output device and then transferred to the upper rear conveyor belt;

[0009] Two upper guiding plates are provided on the upper rear conveyor belt. The two upper guiding plates are located on both sides of the tissue paper to be packed along its moving direction. A guiding portion inclined downward along the conveying direction of the upper rear conveyor belt is provided at the bottom of the upper guiding plate;

[0010] The guiding portion and the lower guiding plate are arranged at intervals along the moving direction of the tissue paper to be packed.

[0011] In the above-mentioned strip packing machine, the wrapping paper output device includes a bracket, a material placing module, a tensioning module, and a discharging module. The material placing module is used for placing a material roll. After the wrapping paper is output from the material roll, it passes through the tensioning module and the discharging module in sequence. The discharging module includes a discharging assembly, a cutting assembly, and a limiting assembly arranged on the bracket. The limiting assembly includes two limiting plates arranged horizontally at intervals. A gap adapted to the thickness of the wrapping paper is provided between the two limiting plates. The wrapping paper passes through the discharging assembly, the cutting assembly, and the gap in sequence in the vertical direction.

[0012] In the above-mentioned strip packing machine, the limiting plates extend along the width direction of the wrapping paper. The two limiting plates are arranged at intervals along the thickness direction of the wrapping paper. The distance between the two limiting plates is adjustable so that the width of the gap can be changed.

[0013] In the above-mentioned strip packing machine, the cutting assembly includes a cutter fixed on the bracket and a driving roller rotatably arranged on the bracket. At least one pressing piece is fixed on the outer wall of the driving roller. The rotation axes of the pressing piece, the cutter, and the driving roller are all parallel to the width direction of the wrapping paper. The driving roller rotates under the drive of a first motor so that the pressing piece presses the wrapping paper against the cutter for cutting.

[0014] In the above-mentioned strip packing machine, the tensioning module includes a plurality of positioning rollers and a plurality of follower rollers. The positioning rollers are fixedly arranged on the bracket at intervals in the horizontal direction. A lifting plate that can slide up and down is arranged on the bracket, and the follower rollers are fixed on the lifting plate. The wrapping paper alternately bypasses the positioning rollers and the follower rollers and then enters the discharging module.

[0015] In the above-mentioned strip packing machine, two material supporting rollers are fixedly arranged on the bracket at intervals. The tensioning module is located between the two material supporting rollers. The wrapping paper bypasses one of the material supporting rollers and then is input into the tensioning module, and the wrapping paper output from the tensioning module bypasses the other material supporting roller.

[0016] In the above-mentioned strip packing machine, the lifting mechanism includes a machine frame, a sliding frame and a ball screw module. The sliding frame is slidably matched with the machine frame up and down. The ball screw module is arranged on the machine frame. The ball screw module is connected to the sliding frame to drive the sliding frame to lift, and the upper packaging mechanism is arranged on the sliding frame.

[0017] One of the technical solutions in the above technical solutions of the present utility model has at least the following advantages or beneficial effects:

[0018] In the present utility model, glue application modules are arranged on both sides of the lower rear conveyor belt. After the paper towels to be packaged pass through the wrapping paper output device below, the wrapping paper will be pressed under the paper towels to be packaged. The upward-facing side of the wrapping paper at the lower part of the paper towels to be packaged will pass through the glue application module, and the glue application module applies glue to the wrapping paper. After the lower wrapping paper enters the guiding structure, it will be closed to the upper wrapping paper, so that the upper wrapping paper and the lower wrapping paper adhere together, realizing automatic gluing and improving the packaging efficiency. Description of the Drawings

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0020] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the lower packaging mechanism of the first embodiment of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the upper packaging mechanism of the first embodiment of the present utility model;

[0023] Figure 4 is of the first embodiment of the present utility model Figure 3 partial enlarged view of A;

[0024] Figure 5 is a schematic structural diagram of the wrapping paper output device of the first embodiment of the present utility model;

[0025] Figure 6 is a structural cross-sectional view of the wrapping paper output device according to the first embodiment of the present utility model;

[0026] Figure 7 is the Figure 6 partial enlarged view of B of

[0027] Among them, the reference numerals in each figure:

[0028] 1. Upper packaging mechanism; 11. Upper front conveyor belt; 12. Upper rear conveyor belt; 13. Upper guide plate; 131. Guide part; 2. Lower packaging mechanism; 21. Lower front conveyor belt; 22. Lower rear conveyor belt; 23. Lower guide plate; 3. Lifting mechanism; 31. Frame; 32. Slide carriage; 33. Ball screw module; 4. Wrapping paper output device; 41. Bracket; 42. Material placing module; 421. Material placing roller; 422. Third motor; 43. Tensioning module; 431. Positioning roller; 432. Follow-up roller; 433. Lifting plate; 434. Material supporting roller; 44. Discharging module; 441. Discharging assembly; 4411. Driving roller; 4412. Driven roller; 4413. Second motor; 4414. Supporting roller; 4415. Swing arm; 4416. Driving member; 442. Cutting assembly; 4421. Cutter; 4422. Driving roller; 4423. Pressing piece; 4424. First motor; 443. Limiting plate; 5. Glue coating module. Specific embodiments

[0029] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals always represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0030] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.

[0031] Referring to Figures 1 to 7 as shown, a strip packing machine includes an upper packaging mechanism 1, a lower packaging mechanism 2, and a lifting mechanism 3. The upper packaging mechanism 1 can be lifted under the drive of the lifting mechanism 3, so as to adjust the distance between the upper packaging mechanism 1 and the lower packaging mechanism 2, so that the two can cooperate to complete the packaging of the paper towels to be packaged;

[0032] The upper packaging mechanism 1 is used to package the upper portion of the tissue paper to be packaged. The upper packaging mechanism 1 includes an upper front conveyor belt 11, a wrapping paper output device 4, and an upper rear conveyor belt 12. The upper front conveyor belt 11 and the upper rear conveyor belt 12 are connected by the wrapping paper output device 4. The tissue paper to be packaged conveyed by the upper front conveyor belt 11 is attached with wrapping paper through the wrapping paper output device 4 and then transferred to the upper rear conveyor belt 12. The upper rear conveyor belt 12 is provided with two upper guide plates 13. The two upper guide plates 13 are located on both sides of the tissue paper to be packaged along the direction of its movement. The bottom of the upper guide plates 13 is provided with a guide portion 131 that is downwardly inclined along the conveying direction of the upper rear conveyor belt 12.

[0033] The lower packaging mechanism 2 is used to package the lower part of the tissue paper to be packaged; the lower packaging mechanism 2 includes a lower front conveyor belt 21, a packaging paper output device 4 and a lower rear conveyor belt 22. The packaging paper output device 4 connects the lower front conveyor belt 21 and the lower rear conveyor belt 22. The tissue paper to be packaged conveyed by the lower front conveyor belt 21 passes through the packaging paper output device 4 and is then transferred to the lower rear conveyor belt 22 after being attached with packaging paper. The lower rear conveyor belt 22 is provided with two lower guide plates 23. The two lower guide plates 23 are located on both sides of the tissue paper to be packaged along the direction of its movement. The top of the lower guide plates 23 is inclined upward along the conveying direction of the lower rear conveyor belt 22.

[0034] The guide portion 131 and the lower guide plate 23 are arranged at intervals along the moving direction of the tissues to be packaged;

[0035] Gluing modules 5 are provided on both sides of the lower rear conveyor belt 22 along its conveying direction. The gluing modules 5 apply glue to the wrapping paper as the wrapping paper moves along the top of the lower guide plate 23.

[0036] During actual operation, the tissue paper to be packaged is fed in cooperation with the upper front conveyor belt 11 and the lower front conveyor belt 21. The tissue paper to be packaged first passes through the upper packaging paper output device 4. The upper packaging paper output device 4 outputs the packaging paper from top to bottom, so that the packaging paper covers the upper part of the tissue paper to be packaged; then, the tissue paper to be packaged passes through the lower packaging paper output device 4. The lower packaging paper output device 4 outputs the packaging paper from bottom to top, so that the packaging paper is located at the bottom of the tissue paper to be packaged; then the upper packaging paper hits the guide part 131, so that the upper packaging paper The two sides of the paper tissue to be packaged are gradually bent to form a 冂 shape and wrapped on the paper tissue to be packaged; then, the lower wrapping paper hits the lower guide plate 23, so that the two sides of the lower wrapping paper to be packaged are gradually bent to form a 凵 shape. In the process of forming the 凵 shape, the gluing module 5 applies glue to the upward side of the lower wrapping paper. After the 凵 shape is formed, the upper wrapping paper will be pressed on the outside of the upper wrapping paper, so that the upper wrapping paper and the lower wrapping paper are adhered together, realizing automatic gluing and improving packaging efficiency.

[0037] In this embodiment, the glue - applying module 5 includes a hot - melt glue gun. The hot - melt glue gun injects glue by means of pneumatic power, enabling the glue to be applied to the wrapping paper.

[0038] In this embodiment, there are a total of two wrapping - paper output devices 4. One is located in the upper encapsulation mechanism 1, and the other is located in the lower encapsulation mechanism 2. Their structural principles are the same, but only the position arrangement is different. One outputs the wrapping paper from top to bottom, and the other outputs the wrapping paper from bottom to top.

[0039] The wrapping - paper output device 4 includes a bracket 41, a material - placing module 42, a tensioning module 43, and a discharging module 44. The material - placing module 42 is used to place the material roll. After the wrapping paper is output from the material roll, it sequentially passes through the tensioning module 43 and the discharging module 44. The discharging module 44 includes a discharging assembly 441, a cutting assembly 442, and a limiting assembly arranged on the bracket 41. The limiting assembly includes two limiting plates 443 arranged horizontally at intervals. A gap adapted to the thickness of the wrapping paper is provided between the two limiting plates 443. The wrapping paper sequentially passes through the discharging assembly 441, the cutting assembly 442, and the gap in the vertical direction.

[0040] A limiting assembly is provided above the cutting assembly 442. The limiting assembly constructs the gap. After the wrapping paper passes through the gap, the part between the discharging module 44 and the gap is in a vertical state or tends to be in a vertical state. At this time, the cutting assembly 442 can cut the wrapping paper smoothly and can easily cut off the wrapping paper.

[0041] In this embodiment, the limiting plates 443 extend along the width direction of the wrapping paper. The two limiting plates 443 are arranged at intervals along the thickness direction of the wrapping paper. The distance between the two limiting plates 443 is adjustable so that the width of the gap can be changed to adapt to the thickness of the wrapping paper.

[0042] Specifically, the position of the limiting plate 443 can be adjusted through the waist - shaped holes, thereby changing the distance between the two limiting plates 443.

[0043] In this embodiment, the cutting assembly 442 includes a cutter 4421 fixed on the bracket 41 and a driving roller 4422 rotatably arranged on the bracket 41. At least one pressing piece 4423 is fixed on the outer wall of the driving roller 4422. The rotation axes of the pressing piece 4423, the cutter 4421, and the driving roller 4422 are all parallel to the width direction of the wrapping paper. The driving roller 4422 rotates under the drive of the first motor 4424 to press the wrapping paper onto the cutter 4421 for cutting. The driving roller 4422 rotates periodically to control the output length of the wrapping paper.

[0044] In this embodiment, the discharging assembly 441 includes a driving roller 4411 and a driven roller 4412 which are arranged at intervals in the thickness direction of the wrapping paper. The driving roller 4411 and the driven roller 4412 are in transmission cooperation. The driving roller 4411 rotates under the drive of the second motor 4413. The wrapping paper passes between the driving roller 4411 and the driven roller 4412, and is pushed by the driving roller 4411 and the driven roller 4412, so that the wrapping paper can move upward;

[0045] Specifically, a driving gear is provided on the driving roller 4411, and a driven gear is provided on the driven roller 4412. The driving gear and the driven gear are meshed. Therefore, when the driving roller 4411 rotates, it will drive the driven roller 4412 to rotate.

[0046] In this embodiment, at least one supporting roller 4414 is provided on the side of the driving roller 4411 away from the cutting assembly 442. The wrapping paper output by the tensioning module 43 bypasses the supporting roller 4414 and then enters between the driving roller 4411 and the driven roller 4412, thereby restricting the output position of the wrapping paper and ensuring that the wrapping paper passes between the driving roller 4411 and the driven roller 4412.

[0047] In this embodiment, a swing arm 4415 is rotatably provided on the bracket 41, the driven roller 4412 is provided on the swing arm 4415, and the swing arm 4415 is rotatable under the drive of the driving member 4416; when material discharging jams occur, the driving member 4416 can be started to swing the driven roller 4412 to make the driven roller 4412 away from the driving roller 4411, so as to create a larger gap between the driving roller 4411 and the driven roller 4412 and loosen the wrapping paper; the driving member 4416 can be a cylinder.

[0048] In this embodiment, the tensioning module 43 includes a plurality of positioning rollers 431 and a plurality of follower rollers 432. The positioning rollers 431 are fixedly arranged on the bracket 41 at intervals in the horizontal direction. A lifting plate 433 which can slide up and down is provided on the bracket 41, and the follower rollers 432 are fixed on the lifting plate 433. The wrapping paper alternately bypasses the positioning rollers 431 and the follower rollers 432 and then enters the discharging module 44; when the discharging module 44 pulls the wrapping paper, the follower rollers 432 will rise. When the discharging module 44 does not pull the wrapping paper, the follower rollers 432 drop by gravity to pull out the wrapping paper on the material roll, so as to prevent the feeding speed from falling behind the pulling speed.

[0049] In this embodiment, two material supporting rollers 434 are fixedly arranged on the bracket 41 at intervals. The tensioning module 43 is located between the two material supporting rollers 434. The wrapping paper bypasses one material supporting roller 434 and then is input into the tensioning module 43, and the wrapping paper output from the tensioning module 43 bypasses the other material supporting roller 434. The two material supporting rollers 434 mainly restrict the input position and the output position of the wrapping paper, and facilitate the docking of the material placing module 42 and the discharging module 44.

[0050] Specifically, guide posts are provided on the bracket 41, and guide sleeves are provided on the lifting plate 433. The guide sleeves are slidably engaged with the guide posts, so that the lifting plate 433 can freely slide up and down.

[0051] In this embodiment, the material placing module 42 includes a material placing roller 421 and a third motor 422 for driving the rotation of the material placing roller 421. The material roll is mounted on the material placing roller 421, and the third motor 422 drives the material placing roller 421 to rotate, so as to let the material roll unwind.

[0052] In this embodiment, the lifting mechanism 3 includes a frame 31, a carriage 32 and a ball screw module 33. The carriage 32 is slidably engaged with the frame 31 up and down. The ball screw module 33 is disposed on the frame 31. The ball screw module 33 is connected to the carriage 32 to drive the carriage 32 to lift. The upper packaging mechanism 1 is disposed on the carriage 32. By the drive of the ball screw module 33 and combined with the sliding structure on the frame 31, the carriage 32 can be stably driven to lift, so as to adjust the distance between the upper packaging mechanism 1 and the lower packaging mechanism 2 according to the height of the paper towel to be packaged.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A strip packing machine, comprising an upper packaging mechanism, a lower packaging mechanism and a lifting mechanism, wherein the upper packaging mechanism is liftable under the drive of the lifting mechanism; the upper packaging mechanism is used for packaging the upper part of the paper towels to be packaged, and the lower packaging mechanism is used for packaging the lower part of the paper towels to be packaged; the lower packaging mechanism includes a lower front conveyor belt, a wrapping paper output device and a lower rear conveyor belt, the wrapping paper output device is connected to the lower front conveyor belt and the lower rear conveyor belt, and the paper towels to be packaged conveyed by the lower front conveyor belt are attached with wrapping paper through the wrapping paper output device and then transferred to the lower rear conveyor belt, characterized in that, The lower rear conveyor belt is provided with glue - applying modules on both sides along its conveying direction. The glue - applying modules apply glue to the upward - facing side of the wrapping paper at the lower part of the paper towels to be packaged.

2. The strip packing machine according to claim 1, wherein Two lower guiding plates are provided on the lower rear conveyor belt. The two lower guiding plates are located on both sides of the paper towels to be packaged along their moving direction. The tops of the lower guiding plates are inclined upward along the conveying direction of the lower rear conveyor belt. The glue - applying modules apply glue to the wrapping paper during the process of the wrapping paper moving along the tops of the lower guiding plates.

3. The strip packing machine according to claim 1, wherein The glue - applying module includes a hot - melting glue gun.

4. The strip packing machine according to claim 2, wherein The upper packaging mechanism includes an upper front conveyor belt, a wrapping - paper output device, and an upper rear conveyor belt. The upper front conveyor belt and the upper rear conveyor belt are connected by the wrapping - paper output device. The paper towels to be packaged conveyed by the upper front conveyor belt are attached with wrapping paper through the wrapping - paper output device and then transferred to the upper rear conveyor belt. Two upper guiding plates are provided on the upper rear conveyor belt. The two upper guiding plates are located on both sides of the paper towels to be packaged along their moving direction. A guiding portion inclined downward along the conveying direction of the upper rear conveyor belt is provided at the bottom of the upper guiding plates. The guiding portion and the lower guiding plates are arranged at intervals along the moving direction of the paper towels to be packaged.

5. The strip packing machine according to claim 1, characterized in that, The wrapping - paper output device includes a bracket, a material - placing module, a tensioning module, and a discharging module. The material - placing module is used for placing the paper - roll. After the wrapping paper is output from the paper - roll, it passes through the tensioning module and the discharging module in sequence. The discharging module includes a discharging component, a cutting component, and a limiting component arranged on the bracket. The limiting component includes two limiting plates arranged horizontally at intervals. A gap adapted to the thickness of the wrapping paper is provided between the two limiting plates. The wrapping paper passes through the discharging component, the cutting component, and the gap in the vertical direction in sequence. The discharging component includes a driving roller and a driven roller arranged at intervals in the thickness direction of the wrapping paper. The driving roller and the driven roller are in transmission cooperation. The driving roller rotates under the drive of a second motor, and the wrapping paper passes through between the driving roller and the driven roller.

6. The strip packing machine according to claim 5, characterized in that, The limiting plates extend along the width direction of the wrapping paper. The two limiting plates are arranged at intervals in the thickness direction of the wrapping paper. The distance between the two limiting plates is adjustable so that the width of the gap can be changed.

7. The strip packing machine according to claim 5, characterized in that, The cutting component includes a cutter fixed on the bracket and a driving roller rotatably arranged on the bracket. At least one pressing piece is fixed on the outer wall of the driving roller. The rotation axes of the pressing piece, the cutter, and the driving roller are all parallel to the width direction of the wrapping paper. The driving roller rotates under the drive of a first motor to press the wrapping paper onto the cutter for cutting.

8. The strip packing machine according to claim 5, characterized in that, The tensioning module includes a plurality of positioning rollers and a plurality of follower rollers. The positioning rollers are fixedly arranged on the bracket at horizontal intervals. A lifting plate that can slide up and down is provided on the bracket. The follower rollers are fixed on the lifting plate. The wrapping paper alternately bypasses the positioning rollers and the follower rollers and then enters the discharging module.

9. The strip packing machine according to claim 7, characterized in that, Two material supporting rollers are fixedly arranged on the bracket at intervals, the tensioning module is located between the two material supporting rollers, the wrapping paper bypasses one of the material supporting rollers and then is input into the tensioning module, and the wrapping paper output from the tensioning module bypasses the other material supporting roller.

10. The strip packing machine according to claim 1, characterized in that, The lifting mechanism comprises a frame, a carriage and a ball screw module. The carriage is slidably matched with the frame vertically. The ball screw module is arranged on the frame and connected with the carriage to drive the carriage to lift. The upper packaging mechanism is arranged on the carriage.

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