Bag sealing hot knife gluing mechanism

Abstract

The utility model relates to the technical field of bag making, in particular to a bag sealing hot knife gluing mechanism. According to the technical scheme, a heat sealing cutter is connected to the bottom end of a connecting plate, the heat sealing cutter is installed at the output end of an air cylinder through the connecting plate, fixing clamps are clamped and fixed to the two ends of the heat sealing cutter, fixing frames are installed on the fixing clamps, and an adhesive tape roller and a winding roller are installed on the two sides of the heat sealing cutter through the fixing frames; the fixing frame is clamped and fixed to the fixing clamp through the clamping plates, the two clamping plates are arranged on the fixing frame, threaded rods are rotationally installed on the two clamping plates, and the threaded rods of the two clamping plates are meshed through a nut sleeve. Through the design of the fixing frame and the clamping plates, the whole mechanism can flexibly adapt to heat sealing cutters of different sizes and shapes, and the universality and practicability of equipment are improved. The bag sealing and gluing device has the characteristics of simple structure, convenience in operation, high stability and high practicability, and can meet the bag sealing and gluing requirements in various bag making processes.

Description

Technical Field

[0001] This utility model relates to the field of bag making technology, specifically to a sealing bag hot-stick gluing mechanism. Background Technology

[0002] A bag-making machine is a machine that produces various plastic or other material packaging bags. Its processing range includes packaging bags of various sizes, thicknesses, and specifications made of plastic or other materials. Generally, plastic packaging bags are the main product. A hot-sealer is a tool used to sew the bag opening with high temperature and is an important component of the bag-making machine.

[0003] The bag-making process involves unrolling the film roll, then using a hot iron to melt the sealing adhesive at certain intervals on the film roll to create the bottom of the bag. After that, it is cut to make individual plastic film bags. The sealing adhesive on the hot iron will be used up after a period of time, so it needs to be replaced frequently, but manually replacing each strip of sealing tape is quite troublesome. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sealing bag hot-stick adhesive applicator, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A hot-sealer applicator mechanism for sealing bags includes a connecting plate, the bottom end of which is connected to a heat-sealing knife, which is mounted on the output end of a cylinder via the connecting plate.

[0007] The heat sealing knife is clamped and fixed at both ends with fixing clips, and fixing brackets are installed on the fixing clips. Tape rollers and take-up rollers are installed on both sides of the heat sealing knife through the fixing brackets.

[0008] The fixing frame is slidably mounted with clamps, and the fixing frame is fixed to the fixing card by clamps. The fixing frame has two clamps, and threaded rods are rotatably mounted on both clamps. The threaded rods of the two clamps are engaged by nuts.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the cylinders are evenly distributed on the connecting plate.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] The even distribution of cylinders ensures that the heat-sealing knife is subjected to more balanced force, avoiding problems such as knife skewing or uneven force caused by uneven cylinder distribution. This design improves the stability and accuracy of heat sealing, thereby guaranteeing the quality of the sealed bag.

[0013] Furthermore, the fixing clip is fixed to the heat sealing knife by bolts.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The bolt clamping method ensures a more secure and reliable connection between the fixing clip and the heat sealing knife, preventing loosening. This design not only improves the stability of the equipment but also facilitates the disassembly and replacement of the fixing clip, providing convenience for equipment maintenance.

[0016] Furthermore, the two ends of the nut sleeve are provided with threads in opposite directions, and the two clamping plates are driven by the nut sleeve engaging the threaded rod.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The nut sleeve has threads in opposite directions at both ends, allowing the two clamping plates to deflect synchronously or in opposite directions by rotating the nut sleeve. This design simplifies the adjustment process, improves the accuracy and efficiency of adjustment, and ensures that the clamping force of the clamping plates on the fixing clip is uniform and stable.

[0019] Furthermore, a barrel groove is provided through the fixed frame, and a sliding groove is provided in the barrel groove. A rotating shaft is provided on the clamp plate. The clamp plate is rotatably installed in the sliding groove through the rotating shaft, and the deflection angle of the clamp plate is controlled by a nut sleeve and a threaded rod, thereby clamping and fixing the fixed frame on the fixed card.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] Through the design of the sliding groove and rotating shaft, the clamping plate can be flexibly adjusted in position and angle to accommodate heat sealing knives of different sizes and shapes. At the same time, the cooperation of the nut sleeve and threaded rod allows for precise control of the clamping force of the clamping plate, ensuring a tight connection between the fixing frame and the fixing clip.

[0022] Furthermore, the clamping plate is provided with a fixing plate, and one end of the threaded rod is provided with a rotating shaft. The threaded rod is rotatably installed in the fixing plate through the rotating shaft.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The fixed plate provides a stable support point for the threaded rod, making its rotation more stable and reliable. Meanwhile, the design of the rotating shaft allows for more flexible and convenient rotation of the threaded rod, facilitating the adjustment of the clamping force of the clamping plates.

[0025] Furthermore, through holes are provided at both ends of the fixing frame, and the tape roller and the take-up roller are respectively rotatably installed in the through holes at both ends of the fixing frame.

[0026] The beneficial effects of adopting the above-mentioned further solutions are:

[0027] The through-hole design provides a stable mounting position for the belt roller and take-up roller, allowing them to rotate smoothly during operation. This design not only improves the stability and reliability of the equipment but also makes the belt and take-up operations smoother and more efficient. Furthermore, the belt roller and take-up roller are mounted at opposite ends of the mounting bracket, making the entire mechanism more compact and efficient, saving space.

[0028] This utility model provides a glue-applying mechanism for a hot-pressing knife used for sealing bags. It has the following beneficial effects:

[0029] The tape roller and take-up roller are mounted on both sides of the heat-sealing knife via a fixing bracket, facilitating tape application and winding during knife operation. The tape roller and take-up roller are rotatably mounted in through holes at both ends of the fixing bracket, allowing the tape to roll smoothly and improving work efficiency.

[0030] The clamp is slidably mounted on the mounting bracket, and its deflection angle is controlled by a nut sleeve and a threaded rod, allowing the mounting bracket to be securely clamped to the fixing clip. This design allows the position and angle of the clamp to be adjusted according to actual needs, thus accommodating heat sealing knives of different sizes and shapes.

[0031] The threaded rod is rotatably mounted inside the fixed plate via a rotating shaft, making the adjustment process more flexible and convenient. The nut sleeve has opposite threads at both ends, allowing both clamps to be driven to deflect in opposite or the same direction simultaneously, thus simplifying the adjustment process. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0033] In the attached diagram:

[0034] Figure 1 This is a schematic diagram of the main appearance of this utility model;

[0035] Figure 2 This is a schematic diagram of the main appearance of the fixing frame of this utility model;

[0036] Figure 3 This is a cross-sectional view of the fixing frame of this utility model;

[0037] Figure 4 This is a schematic diagram of the appearance of the clamping plate of this utility model.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Connecting plate; 2. Belt roller; 3. Heat sealing knife; 4. Fixing clip; 5. Fixing frame; 501. Barrel trough; 502. Through hole; 503. Slide groove; 504. Rotating shaft; 505. Fixing plate; 506. Nut sleeve; 507. Threaded rod; 6. Cylinder; 7. Clamping plate; 701. Rotating shaft; 8. Take-up roller. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0042] Example 1

[0043] A heat-sealing knife adhesive application mechanism for sealing bags includes a connecting plate 1. A heat-sealing knife 3 is connected to the bottom end of the connecting plate 1. The heat-sealing knife 3 is mounted on the output end of a cylinder 6 via the connecting plate 1. The cylinders 6 are evenly distributed on the connecting plate 1. This even distribution ensures that the heat-sealing knife 3 is subjected to more balanced force, avoiding problems such as skewing or uneven force on the heat-sealing knife 3 caused by uneven distribution of the cylinders 6. This design improves the stability and accuracy of heat sealing, thereby ensuring the quality of the sealed bag. Fixing clips 4 are clamped and fixed at both ends of the heat-sealing knife 3. The fixing clips 4 are fixed to the heat-sealing knife 3 by bolts. This bolt clamping method makes the connection between the fixing clips 4 and the heat-sealing knife 3 more secure and reliable, preventing loosening. This design not only improves the stability of the equipment but also facilitates the disassembly and replacement of the fixing clip 4, providing convenience for equipment maintenance. A fixing frame 5 is mounted on the fixing clip 4. The tape roller 2 and take-up roller 8 are mounted on both sides of the heat-sealing knife 3 via the fixing frame 5. Through holes 502 are provided at both ends of the fixing frame 5. The tape roller 2 and take-up roller 8 are rotatably installed within the through holes 502 at both ends of the fixing frame 5. The design of the through holes 502 provides a stable mounting position for the tape roller 2 and take-up roller 8, allowing them to maintain smooth rotation during operation. This design not only improves the stability and reliability of the equipment but also makes the tape and take-up operations smoother and more efficient. Furthermore, the mounting of the tape roller 2 and take-up roller 8 at both ends of the fixing frame 5 makes the entire mechanism more compact and rational, saving space.

[0044] Example 2

[0045] To facilitate fixing the mounting bracket 5 to the mounting clip 4, for example, as shown... Figures 1 to 4As shown, this utility model also includes: a clamping plate 7 slidably installed on the fixing frame 5, the clamping plate 7 being Z-shaped, the fixing frame 5 being clamped and fixed on the fixing card 4 by the clamping plate 7, the fixing frame 5 having a total of two clamping plates 7, a barrel groove 501 being formed through the fixing frame 5, a sliding groove 503 being formed at the barrel groove 501, a rotating shaft 701 being provided on the clamping plate 7, the clamping plate 7 being rotatably installed in the sliding groove 503 by the rotating shaft 701, and the deflection angle of the clamping plate 7 being controlled by the nut sleeve 506 and the threaded rod 507, thereby clamping and fixing the fixing frame 5 on the fixing card 4. Through the design of the sliding groove 503 and the rotating shaft 701, the clamping plate 7 can flexibly adjust its position and angle to adapt to heat sealing knives 3 of different sizes and shapes. Meanwhile, the combined use of the nut sleeve 506 and the threaded rod 507 allows for precise control of the clamping force of the clamping plate 7, ensuring a tight connection between the fixing frame 5 and the fixing clip 4. Threaded rods 507 are rotatably mounted on both clamping plates 7, and a fixing plate 505 is provided on the clamping plate 7. One end of the threaded rod 507 is provided with a rotating shaft 504. The threaded rod 507 is rotatably mounted in the fixing plate 505 via the rotating shaft 504. The fixing plate 505 provides a stable support point for the threaded rod 507, making the threaded rod 507 more stable and reliable during rotation. Meanwhile, the design of the rotating shaft 504 makes the rotation of the threaded rod 507 more flexible and convenient, providing convenience for adjusting the clamping force of the clamping plate 7. The threaded rods 507 of the two clamping plates 7 are engaged by the nut sleeve 506. The two ends of the nut sleeve 506 have threads in opposite directions. The two clamping plates 7 are driven by the engagement of the threaded rods 507 by the nut sleeve 506. The two ends of the nut sleeve 506 have threads in opposite directions, which allows the two clamping plates 7 to be deflected synchronously or in opposite directions by rotating the nut sleeve 506. This design simplifies the adjustment process, improves the accuracy and efficiency of adjustment, and ensures that the clamping force of the clamping plate 7 on the fixed card 4 is uniform and stable.

[0046] Working principle:

[0047] When the mechanism is activated, cylinder 6 begins to work, pushing the heat-sealing knife 3 downwards via connecting plate 1, so that it comes into contact with the film of the bag to be sealed. At the same time, a heat source (such as a heating rod or electric heating plate) inside or outside the heat-sealing knife 3 begins to heat up, so that the heat-sealing knife 3 reaches the required heat-sealing temperature.

[0048] Under sufficient pressure and temperature, the heat-sealing blade 3 melts the heat-sealing layers of the film and bonds them together to form an effective heat seal. The heat-sealing time and pressure can be adjusted according to the specific film material and thickness to ensure the heat-sealing effect.

[0049] The tape roller 2 is pre-loaded with an appropriate amount of tape. When the mechanism is working, the tape roller 2 starts to rotate, conveying the tape to the designated position. During heat sealing, the tape is pressed onto the heat-sealed area by the heat-sealing knife 3 to achieve the adhesive application effect.

[0050] After the tape is applied to the heat-sealed area, the remaining tape is fed onto the take-up roller 8 and wound up. Simultaneously, as the mechanism continues to operate, the diameter of the take-up roller 8 gradually increases until all the tape is used.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bag sealing and ironing knife gluing mechanism, comprising a connecting plate (1), the bottom end of the connecting plate (1) is connected with a hot sealing knife (3), the hot sealing knife (3) is installed on the output end of a pneumatic cylinder (6) through the connecting plate (1), characterized in that: both ends of the hot sealing knife (3) are clamped and fixed with a fixed clamp (4), a fixed frame (5) is installed on the fixed clamp (4), and adhesive tape rollers (2) and winding rollers (8) are installed on both sides of the hot sealing knife (3) through the fixed frame (5); a clamping plate (7) is slidingly installed on the fixed frame (5), the fixed frame (5) is clamped and fixed on the fixed clamp (4) through the clamping plate (7), two clamping plates (7) are arranged on the fixed frame (5), and a threaded rod (507) is rotatably installed on each clamping plate (7), and the threaded rods (507) of the two clamping plates (7) are engaged through a nut sleeve (506).

2. The bag sealer and hot knife gluing mechanism of claim 1, wherein: The pneumatic cylinders (6) are uniformly distributed on the connecting plate (1).

3. The bag sealer and hot knife gluing mechanism of claim 1, wherein: The fixed clamp (4) is clamped and fixed on the hot sealing knife (3) through bolts.

4. The bag sealer and hot knife gluing mechanism of claim 1, wherein: The nut sleeve (506) is provided with opposite threads at both ends, and the two clamping plates (7) are driven by engaging the threaded rods (507) through the nut sleeve (506).

5. The bag sealer and hot knife gluing mechanism of claim 1 wherein: A barrel groove (501) is formed through the fixed frame (5), a sliding groove (503) is formed at the barrel groove (501), a rotating shaft (701) is arranged on the clamping plate (7), the clamping plate (7) is rotatably installed in the sliding groove (503) through the rotating shaft (701), and the clamping plate (7) controls the deflection angle through the nut sleeve (506) and the threaded rod (507), so that the fixed frame (5) is clamped and fixed on the fixed clamp (4).

6. The bag sealer and hot knife gluing mechanism of claim 1, wherein: A fixed plate (505) is arranged on the clamping plate (7), one end of the threaded rod (507) is provided with a rotating shaft (504), and the threaded rod (507) is rotatably installed in the fixed plate (505) through the rotating shaft (504).

7. The bag sealer and hot knife gluing mechanism of claim 1 wherein: Both ends of the fixed frame (5) are provided with through holes (502), and the adhesive tape rollers (2) and the winding rollers (8) are rotatably installed in the through holes (502) at both ends of the fixed frame (5).

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