Tea leaf packaging machine bag mouth shaping mechanism

Abstract

The utility model provides a tea leaf packaging machine bag mouth shaping mechanism. It relates to tea leaf packaging auxiliary equipment technical field. The tea leaf packaging machine bag mouth shaping mechanism includes two transmission support, two transmission rollers are rotatably installed between two transmission support, the same transmission belt is equipped with on two transmission rollers, the top of transmission belt is equipped with two spacing stop, the side of two spacing stop is close to each other and is inlayed with a plurality of ball, the top of spacing stop is equipped with mounting bracket, the same side fixed connection of two transmission support is connected to the bottom of mounting bracket, the top of mounting bracket is equipped with lifting screw rod, the bottom of lifting screw rod rotatably installs mounting plate, the top fixed mounting of mounting plate has double shaft air cylinder. The utility model has the advantages of good shaping effect, strong shaping capacity and wide application range.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for tea packaging, specifically a bag mouth shaping mechanism for a tea packaging machine. Background Technology

[0002] Packaging is a crucial step in the tea production and processing process, directly affecting the storage quality and appearance of the tea. As the core equipment for realizing automated tea packaging, the tea packaging machine's workflow typically includes steps such as bag feeding, filling, bag opening shaping, and sealing. Among these steps, the quality of bag opening shaping directly determines the sealing effect of the subsequent sealing and the aesthetics of the finished package.

[0003] Currently, the bag opening shaping mechanisms of tea packaging machines on the market generally have the following problems: First, the shaping effect of the bag opening is poor. Most of them use a simple smoothing structure, which can only do a simple combing of the bag opening surface. After shaping, the bag opening is prone to springback and deformation, making the bag opening fluffy and not close, which makes it easy for wrinkles to appear when sealing later, resulting in poor sealing performance and affecting the moisture-proof performance of the tea. Second, the mechanism has poor versatility. For tea packaging bags of different sizes and materials, it is necessary to change the corresponding shaping parts, which is cumbersome and increases production costs and equipment debugging time.

[0004] Therefore, it is necessary to provide a new bag opening shaping mechanism for tea packaging machines to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tea packaging machine bag opening shaping mechanism with better shaping effect, stronger shaping ability and wider application range.

[0006] To solve the above-mentioned technical problems, the tea packaging machine bag opening shaping mechanism provided by this utility model includes: two conveyor supports, two conveyor rollers rotatably mounted between the two conveyor supports, a common conveyor belt sleeved on the two conveyor rollers, two limiting blocks above the conveyor belt, multiple ball bearings embedded on the side of each of the two limiting blocks that are close to each other, and anti-lifting plates fixedly mounted on the top of each of the two limiting blocks, with the side of each of the two anti-lifting plates that is close to each other protruding from the inner side of the corresponding limiting block; a mounting frame is provided above the limiting blocks, and the bottom of the mounting frame is fixedly connected to the same-direction side of the two conveyor supports. The top of the mounting bracket is threaded with a lifting screw, and the bottom end of the lifting screw is rotatably mounted with a mounting plate. A dual-axis cylinder is fixedly mounted on the top of the mounting plate. The output shaft of the dual-axis cylinder passes through the mounting plate and is slidably connected to the mounting plate. A connecting piece is fixedly mounted on the output shaft of the dual-axis cylinder. Two first single-axis cylinders are fixedly mounted on the bottom of the connecting piece. A fixing plate is fixedly mounted on the output shaft of each of the two first single-axis cylinders. A connecting back plate is fixedly mounted on the bottom of each of the two fixing plates. Heating clips are fixedly mounted on the side of each of the two connecting back plates that are close to each other. The side of each of the two heating clips that is close to each other is spherical.

[0007] Preferably, a conveying motor is fixedly mounted on one of the conveying supports, and the output shaft of the conveying motor is fixedly connected to one end of one of the conveying rollers.

[0008] Preferably, the same bidirectional screw is rotatably mounted on the two conveying brackets, and two movable plates are threaded onto the bidirectional screw. The two conveying brackets are located between the two movable plates. A connecting strip is fixedly mounted on the top of each of the two movable plates, and three linkage flaps are fixedly mounted on the top of each of the two connecting strips. One side of each of the three linkage flaps is fixedly connected to the corresponding limiting barrier.

[0009] Preferably, a first guide post is fixedly installed on each of the two conveying brackets on the side away from each other. The two first guide posts pass through the corresponding moving piece and are slidably connected to the corresponding moving piece. A convex plate is fixedly installed on one of the conveying brackets. A first set screw is threaded on the convex plate, and the end of the first set screw abuts against the bidirectional screw.

[0010] Preferably, a through opening is provided on one side of the mounting bracket, a second guide post is slidably mounted on the top of the mounting bracket, the bottom end of the second guide post is fixedly connected to the mounting plate, and a second set screw is threaded on one side of the mounting bracket, the end of the second set screw abutting against the second guide post.

[0011] Preferably, a second single-axis cylinder is fixedly installed on the side of the mounting plate away from the mounting frame. A support frame is fixedly installed on the output shaft of the second single-axis cylinder. A third single-axis cylinder is fixedly installed on the support frame. The output shaft of the third single-axis cylinder passes through the support frame and is slidably connected to the support frame. A connecting support plate is fixedly installed on the output shaft of the third single-axis cylinder. A transverse baffle is fixedly installed on one side of the connecting support plate. The transverse baffle is located between two limiting blocks and below the heating clip.

[0012] Compared with related technologies, the bag opening shaping mechanism of the tea packaging machine provided by this utility model has the following beneficial effects: I. This utility model uses electric heating clips to clamp the bag opening and combine them with an upward sliding heating method to achieve full heating and shaping of the bag opening, solving the problem of bag opening rebound and fluffiness caused by traditional single smoothing structure. In addition, the spherical design of the electric heating clips can avoid damage to the bag opening, ensure the bag opening is flat, and improve the sealing performance and packaging aesthetics of the subsequent sealing. II. This utility model utilizes a bidirectional screw to drive the moving plate, connecting strip, and linkage folding plate to move synchronously, enabling flexible adjustment of the limit spacing to accommodate packaging bags of different widths; and by adjusting the height of the mounting plate with a lifting screw, it drives the heating clip and the horizontal baffle to rise and fall synchronously to accommodate packaging bags of different heights; there is no need to replace the shaping parts, reducing operational complexity and lowering maintenance costs and equipment debugging time. Attached Figure Description

[0013] Figure 1 A schematic diagram of the bag opening shaping mechanism of the tea packaging machine provided by this utility model; Figure 2 This is a schematic diagram of the installation structure of the limiting partition in this utility model; Figure 3 This is a side view of the structural plan of this utility model; Figure 4 This is a side sectional view of the conveyor support structure in this utility model; Figure 5 This is a schematic diagram of the connection structure between the connecting back plate and the heating clip in this utility model.

[0014] The following are the labeling elements in the diagram: 1. Conveyor support; 2. Conveyor roller; 3. Conveyor belt; 4. Limiting baffle; 5. Bidirectional screw; 6. Moving plate; 7. Connecting strip; 8. Linkage folding plate; 9. Mounting frame; 10. Lifting screw; 11. Mounting plate; 12. Dual-axis cylinder; 13. Connecting plate; 14. First single-axis cylinder; 15. Fixing plate; 16. Connecting back plate; 17. Heating clamp; 18. Second single-axis cylinder; 19. Bearing frame; 20. Third single-axis cylinder; 21. Connecting support plate; 22. Transverse baffle. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figures 1-5 .

[0017] The bag-mouth shaping mechanism of the tea packaging machine includes: two conveyor supports 1, with two conveyor rollers 2 rotatably mounted between the two conveyor supports 1. A single conveyor belt 3 is fitted onto the two conveyor rollers 2. A conveyor motor is fixedly mounted on one of the conveyor supports 1, and its output shaft is fixedly connected to one end of one of the conveyor rollers 2, thus forming a belt conveyor unit. Two limiting barriers 4 are provided above the conveyor belt 3. Multiple ball bearings are embedded on the side of each limiting barrier 4 that is close to each other, which reduces frictional resistance during bag transport, prevents bag wear, and achieves precise limiting guidance to prevent... To prevent the packaging bag from shifting and ensure the orderly progress of the shaping process, anti-lifting plates are fixedly installed on the top of both limiting partitions 4. The side of each anti-lifting plate protrudes from the inner side of the corresponding limiting partition 4, thus preventing the heating clips 17 from lifting the packaging bag along with it when rising. A mounting frame 9 is provided above the limiting partitions 4, with its bottom fixedly connected to the same side of the two conveying supports 1. A through-hole is provided on one side of the mounting frame 9 for easy manual operation. A lifting screw 10 is threaded onto the top of the mounting frame 9, and a mounting bracket is rotatably installed at its bottom. Mounting plate 11 is mounted, and to ensure the stability of the linear lifting of mounting plate 11, a second guide post is slidably mounted on the top of mounting frame 9. The bottom end of the second guide post is fixedly connected to mounting plate 11. In addition, a second set screw is threaded on one side of mounting frame 9, and the end of the second set screw abuts against the second guide post to prevent the lifting screw 10 from rotating. A dual-shaft cylinder 12 is fixedly mounted on the top of mounting plate 11, and its output shaft passes through mounting plate 11 and is slidably connected to mounting plate 11. A connecting piece 13 is fixedly mounted on the output shaft of dual-shaft cylinder 12, and two second guide posts are fixedly mounted on the bottom of connecting piece 13. A single-shaft cylinder 14 is provided. Fixing plates 15 are fixedly installed on the output shafts of the two first single-shaft cylinders 14. Connecting back plates 16 are fixedly installed on the bottom of the two fixing plates 15. Heating clips 17 are fixedly installed on the side of the two connecting back plates 16 that are close to each other. The side of the two heating clips 17 that are close to each other is spherical. The heating clips 17 are common heating elements on the market and will not be described in detail here. A U-shaped slide rod is fixed at the bottom of the connecting piece 13. The U-shaped slide rod passes through the two fixing plates 15 and slides between them to ensure the stability of the extension and retraction of the output shaft of the first single-shaft cylinder 14.

[0018] In this embodiment, in order to move and adjust the two limiting blocks 4 to accommodate packaging bags of different widths, a bidirectional screw 5 is rotatably mounted on the two conveying brackets 1. Two movable pieces 6 are threaded onto the screw 5. The two conveying brackets 1 are located between the two movable pieces 6. A first guide post is fixedly mounted on the side of the two conveying brackets 1 that is far apart from each other. The two first guide posts pass through the corresponding movable pieces 6 and are slidably connected to the corresponding movable pieces 6 to ensure the stability of the linear movement of the movable pieces 6. A connecting strip 7 is fixedly mounted on the top of the two movable pieces 6. Three linkage flaps 8 are fixedly mounted on the top of the two connecting strips 7. One side of the three linkage flaps 8 is fixedly connected to the corresponding limiting block 4. The distance between the two limiting blocks 4 can be adjusted by rotating the bidirectional screw 5. In addition, a convex plate is fixedly mounted on one of the conveying brackets 1. A first set screw is threaded onto the convex plate. The end of the first set screw abuts against the bidirectional screw 5 to prevent the bidirectional screw 5 from rotating.

[0019] In this embodiment, in order to achieve precise positioning of the packaging bag, a second single-axis cylinder 18 is fixedly installed on the side of the mounting plate 11 away from the mounting frame 9. A support frame 19 is fixedly installed on its output shaft. A third single-axis cylinder 20 is fixedly installed on the support frame 19. Its output shaft passes through the support frame 19 and is slidably connected to the support frame 19. A connecting support plate 21 is fixedly installed on the output shaft of the third single-axis cylinder 20. A transverse baffle 22 is fixedly installed on one side of the connecting support plate 21. The transverse baffle 22 is located between the two limiting baffles 4 and below the electric heating clip 17, ensuring that the electric heating clip 17 can accurately clamp the bag opening. In addition, two crossbars are fixedly installed on one side of the mounting plate 11. Both crossbars pass through the support frame 19 and are slidably connected to it, ensuring the stability of the extension and retraction of the output shaft of the second single-axis cylinder 18. A folding rod is slidably installed on the support frame 19. The bottom end of the folding rod is fixedly connected to the connecting support plate 21, ensuring the stability of the extension and retraction of the output shaft of the third single-axis cylinder 20.

[0020] The working principle of the bag opening shaping mechanism of the tea packaging machine provided by this utility model is as follows: In the initial state, the output shafts of both the dual-axis cylinder 12 and the third single-axis cylinder 20 are extended. When in use, first start the conveyor motor, and its output shaft drives a conveyor roller 2 that is fixedly connected to it to rotate. Since the same conveyor belt 3 is sleeved between the two conveyor rollers 2, the actively rotating conveyor roller 2 will drive the conveyor belt 3 and the other conveyor roller 2 to run synchronously, forming a stable conveying channel. Then, according to the width of the packaging bag to be shaped, rotate the bidirectional screw 5, and the two moving pieces 6 will move closer to each other in the horizontal direction. The connecting strip 7 fixed at the top of the moving piece 6 and the three linkage flaps 8 at the top of the connecting strip 7 will move synchronously with the moving piece 6, thereby driving the two limiting blocks 4 fixed with the linkage flaps 8 to adjust the spacing until they are adapted to the width of the packaging bag. After the adjustment is completed, tighten the first set screw so that its end abuts against the bidirectional screw 5, lock the position of the bidirectional screw 5, and prevent the limiting blocks 4 from shifting. Then, adjust the height of the heating clip 17 according to the height of the packaging bag. During operation, first rotate the lifting screw 10, and the mounting plate 11 descends vertically along the second guide post. Finally, adjust the height of the heating clip 17 and the transverse baffle 22 to a suitable height. After the adjustment is completed, tighten the second set screw so that its end abuts against the second guide post, lock the height of the mounting plate 11, and avoid height deviation during the shaping process. The filled tea bags are then placed at one end of the conveyor belt 3 for transport. Simultaneously, multiple ball bearings embedded in the limiting baffle 4 reduce friction between the bags and the baffle during transport, preventing wear and tear and providing initial guidance to ensure the bags follow the set path. At this point, the lower half of the bags filled with tea is below the anti-lifting plate. When the bags reach contact with the transverse baffle 22, they cannot move forward. Then, the output shafts of the two first single-axis cylinders 14 extend, and the two connecting back plates 16 move closer together, ultimately fixing the... The electric heating clips 17 clamp the lower part of the bag opening. When the electric heating clips 17 are energized, they generate heat to heat and shape the lower part of the bag opening. At the same time, the output shaft of the dual-axis cylinder 12 retracts, which allows the two electric heating clips 17 to slide upward on the bag and eventually move out from above the bag opening. During the removal process, the bag will not rise due to the restriction of the anti-lifting plate. Thus, the entire bag opening is heated and shaped. The spherical design of the electric heating clips 17, which are close to each other on one side, can avoid excessive compression damage to the bag opening and ensure that the heating of all parts of the bag opening is uniform. After the shaping is completed, the output shaft of the second single-axis cylinder 18 is first activated to extend and move the transverse baffle 22 from the lower part of the heating plate 17. Then, the output shaft of the third single-axis cylinder 20 is activated to retract and bring the transverse baffle 22 to the top of the packaging bag so that it will not block the packaging bag. At this time, the shaped packaging bag continues to be conveyed until it enters the next packaging process.

[0021] Compared with related technologies, the bag opening shaping mechanism of the tea packaging machine provided by this utility model has the following beneficial effects: I. This utility model uses an electric heating clip 17 to clamp the bag opening and a heating method that slides upwards to achieve full heating and shaping of the bag opening, solving the problem of bag opening rebound and fluffiness caused by traditional single smoothing structure. In addition, the spherical design of the electric heating clip 17 can avoid damage to the bag opening, ensure the bag opening is flat, and improve the sealing performance and packaging aesthetics of the subsequent sealing. II. This utility model utilizes a bidirectional screw 5 to drive the moving plate 6, connecting strip 7, and linkage folding plate 8 to move synchronously, thereby enabling flexible adjustment of the spacing of the limit divider 4 to accommodate packaging bags of different widths. Furthermore, by adjusting the height of the mounting plate 11 through the lifting screw 10, the electric heating clip 17 and the transverse baffle 22 are driven to rise and fall synchronously to accommodate packaging bags of different heights. There is no need to replace the shaping components, reducing operational complexity and lowering maintenance costs and equipment debugging time.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tea leaf packaging machine bag mouth shaping mechanism comprising two conveying supports, characterized in that, Two conveyor rollers are rotatably mounted between the two conveyor supports. The same conveyor belt is fitted on the two conveyor rollers. Two limiting blocks are provided above the conveyor belt. Multiple balls are embedded on the side of the two limiting blocks that are close to each other. Anti-lifting plates are fixedly installed on the top of the two limiting blocks. The side of the two anti-lifting plates that are close to each other protrudes from the inner side of the corresponding limiting block. A mounting frame is provided above the limiting partition. The bottom of the mounting frame is fixedly connected to the same-direction side of the two conveying brackets. A lifting screw is threaded onto the top of the mounting frame. A mounting plate is rotatably mounted on the bottom end of the lifting screw. A dual-axis cylinder is fixedly mounted on the top of the mounting plate. The output shaft of the dual-axis cylinder passes through the mounting plate and is slidably connected to the mounting plate. A connecting piece is fixedly mounted on the output shaft of the dual-axis cylinder. Two first single-axis cylinders are fixedly mounted on the bottom of the connecting piece. A fixing plate is fixedly mounted on the output shaft of each of the two first single-axis cylinders. A connecting back plate is fixedly mounted on the bottom of each of the two fixing plates. Heating clips are fixedly mounted on the side of each of the two connecting back plates that are close to each other. The side of each of the two heating clips that are close to each other is spherical.

2. The tea packaging machine bag mouth shaping mechanism according to claim 1, characterized in that, A conveyor motor is fixedly mounted on one of the conveyor supports, and the output shaft of the conveyor motor is fixedly connected to one end of one of the conveyor rollers.

3. The tea packaging machine bag mouth shaping mechanism according to claim 1, characterized in that, The same bidirectional screw is rotatably mounted on both of the conveying brackets. Two movable plates are threaded onto the bidirectional screw. Both of the conveying brackets are located between the two movable plates. A connecting strip is fixedly mounted on the top of each of the two movable plates. Three linkage flaps are fixedly mounted on the top of each of the two connecting strips. One side of each of the three linkage flaps is fixedly connected to the corresponding limiting barrier.

4. The tea packaging machine bag mouth shaping mechanism according to claim 3, characterized in that, Each of the two conveying brackets has a first guide post fixedly installed on its opposite side. Each of the two first guide posts passes through the corresponding movable piece and is slidably connected to the corresponding movable piece. A convex plate is fixedly installed on one of the conveying brackets. A first set screw is threaded onto the convex plate. The end of the first set screw abuts against the bidirectional screw.

5. The tea packaging machine bag mouth shaping mechanism according to claim 1, characterized in that, The mounting bracket has a through opening on one side, and a second guide post is slidably mounted on the top of the mounting bracket. The bottom end of the second guide post is fixedly connected to the mounting plate. A second set screw is threaded onto one side of the mounting bracket, and the end of the second set screw abuts against the second guide post.

6. The tea packaging machine bag mouth shaping mechanism according to claim 1, characterized in that, A second single-axis cylinder is fixedly mounted on the side of the mounting plate away from the mounting frame. A support frame is fixedly mounted on the output shaft of the second single-axis cylinder. A third single-axis cylinder is fixedly mounted on the support frame. The output shaft of the third single-axis cylinder passes through the support frame and is slidably connected to the support frame. A connecting support plate is fixedly mounted on the output shaft of the third single-axis cylinder. A transverse baffle is fixedly mounted on one side of the connecting support plate. The transverse baffle is located between two limiting blocks and below the heating clip.

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