Edge sealing and embossing mechanism for packaging bag

Abstract

The utility model relates to the technical field of packaging, in particular to an edge sealing and embossing mechanism for a packaging bag. Comprising a heat sealing structure, a power structure, a dividing structure and a transmission structure, the heat sealing structure comprises a heat sealing block; the power structure is connected with the heat sealing blocks so as to drive the heat sealing blocks to be close to or away from each other. The cutting structure comprises a cutting knife; the transmission structure comprises a transmission wheel and a ratchet wheel structure; the transmission wheel is in transmission connection with a power structure through a ratchet wheel structure, so that when the heat sealing blocks approach, the transmission wheel can rotate relative to the dividing knife; a trigger bulge is arranged on the transmission wheel; when the trigger protrusion abuts against the cutting knife, the cutting knife can move relative to the heat sealing block. In the prior art, the package of snack food needs to be manually cut so as to meet the selling and transporting requirements. Compared with the prior art, the package cutting device can cut packages according to actual requirements, so that labor is saved, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a bag edge-sealing and embossing mechanism. Background Art

[0002] With the continuous development of technology, food production has gradually become industrialized and the styles are increasingly diverse. In order to effectively maintain the flavor of food and facilitate food transportation. After the food is processed, it needs to be packaged in time. At present, a bag sealer is mostly used for automatic packaging of food.

[0003] The packaging material matched with the bag sealer is a flat plastic material. When the packaging material is introduced into the bag sealer, the bag sealer guides the packaging material, so that the packaging material gradually encloses into a cylindrical shape from a flat state. Subsequently, the transverse and longitudinal edge-sealing mechanisms respectively seal the transverse and longitudinal sides of the packaging material. At the same time, the transverse edge-sealing mechanism divides the packaging material, so as to divide it into independent packaging bags one by one. Although the existing bag sealers can effectively carry out packaging, with the continuous change of market demand, at present, people's demand for snacks with small weight and small capacity is gradually increasing. In order to facilitate the transportation and sale of such snacks, the packaging of such snacks mostly adopts the form of multiple small packages connected in series, usually four or five small packages connected in series. This requires the transverse edge-sealing mechanism of the bag sealer to only seal the edge without dividing, and then, it is manually divided according to actual needs. Although it can also meet the actual needs, this method requires additional manpower and increases the labor cost. Summary of the Utility Model

[0004] Aiming at the technical problems of the prior art, the utility model provides a bag edge-sealing and embossing mechanism.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A bag edge-sealing and embossing mechanism includes: a heat-sealing structure, a power structure, a dividing structure, and a transmission structure; the heat-sealing structure includes heat-sealing blocks; the power structure is connected to the heat-sealing blocks to drive the heat-sealing blocks to approach or separate from each other; the dividing structure includes a dividing knife; the transmission structure includes a transmission wheel and a ratchet structure; the transmission wheel is in transmission connection with the power structure through the ratchet structure, so that when the heat-sealing blocks approach each other, the transmission wheel can rotate relative to the dividing knife; a trigger protrusion is arranged on the transmission wheel; when the trigger protrusion abuts against the dividing knife, the dividing knife can move relative to the heat-sealing blocks.

[0007] In practical applications, the power structure drives the heat-sealing blocks to approach or move away from each other. When the heat-sealing blocks approach each other, the heat-sealing blocks heat-seal the packaging material. At the same time, since a ratchet structure is provided between the transmission wheel and the power structure, the power structure can only drive the transmission wheel to rotate when the heat-sealing blocks approach each other. Thus, the transmission wheel rotates with the number of times the heat-sealing blocks heat-seal the packaging material. As the number of heat-sealing times increases, finally, the trigger protrusion will rotate to a position corresponding to the cutting knife and abut against the cutting knife. At this time, the trigger protrusion will push the cutting knife to move relative to the heat-sealing block, thereby cutting the packaging material. In summary, through the present utility model, the packaging material can be cut only after the heat-sealing blocks have completed a certain number of heat-sealing operations, so that multiple packaging bags can be connected in series according to actual needs to facilitate subsequent sales and transportation. At the same time, the foregoing process does not require manual assistance, thus effectively reducing the occupation of manpower and lowering the labor cost.

[0008] Further, a receiving groove is formed in the heat-sealing block; the receiving groove corresponds to the cutting knife to receive the cutting knife.

[0009] Further, the power structure includes a power rod; the power rods are respectively arranged at both ends of the heat-sealing block; the power rod is connected to one of the heat-sealing blocks; when the power rod contracts or extends, it can drive the heat-sealing blocks to approach or move away from each other.

[0010] Further, the power structure further includes an assembly plate; the assembly plate is arranged on one side of the heat-sealing block; the assembly plate is connected to the heat-sealing block; one of the assembly plates is connected to the transmission wheel; the power rod penetrates through the assembly plate; the power rod is connected to one of the assembly plates; cavities are formed in the power rod and the assembly plate to accommodate the circuit that matches the heat-sealing block.

[0011] Further, the transmission structure further includes a rack and a power wheel; the rack is arranged along the movement path of the heat-sealing block; the rack is engaged with the power wheel; the power wheel is rotatably connected to the power structure; the power wheel is connected to the transmission wheel through a ratchet structure.

[0012] Further, the ratchet structure includes a wheel shaft and a wheel sleeve; the wheel shaft is connected to the power wheel; the wheel sleeve is sleeved on the wheel shaft; the wheel sleeve is connected to the transmission wheel.

[0013] Further, the transmission structure further includes a return spring; one end of the return spring is connected to the cutting knife, and the other end is connected to the power structure. Description of the Drawings

[0014] Figure 1 : Overall structure diagram.

[0015] Figure 2 : Overall structure diagram of the heat-sealing structure.

[0016] Figure 3 : Overall structure diagram of the power structure.

[0017] Figure 4 : Overall structure diagram of the transmission structure.

[0018] In the figure: 1. Heat-sealing structure; 11. Heat-sealing block; 111. Accommodating groove; 2. Power structure; 21. Power rod; 22. Assembly plate; 3. Cutting structure; 31. Cutting knife; 4. Transmission structure; 41. Transmission wheel; 42. Ratchet structure; 43. Rack; 421. Wheel shaft; 422. Wheel sleeve; 44. Driving wheel; 411. Trigger protrusion; 45. Return spring. Specific implementation manners

[0019] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0020] A bag edge-sealing and embossing mechanism includes: a heat-sealing structure 1, a power structure 2, a cutting structure 3, and a transmission structure 4. The heat-sealing structure 1 includes heat-sealing blocks 11. The number of the heat-sealing blocks 11 is two. The heat-sealing blocks 11 can adopt the heat-sealing device of an existing bag-sealing machine, so that when the two heat-sealing blocks 11 are attached together, the packaging material between the two heat-sealing blocks 11 can be sealed by heating. At the same time, the heat-sealing blocks 11 are provided with accommodating grooves 111. When the two heat-sealing blocks 11 are attached together, the accommodating grooves 111 on the two heat-sealing blocks 11 are communicated with each other.

[0021] The power structure 2 includes a power rod 21 and an assembly plate 22. The assembly plate 22 is arranged on the side of the heat-sealing block 11 away from the accommodating groove 111. The assembly plate 22 is connected to the heat-sealing block 11. The power rods 21 are respectively arranged at both ends of the heat-sealing block 11. The power rods 21 penetrate through the assembly plate 22. The power rod 21 is connected to one of the assembly plates 22, and thus is connected to the corresponding heat-sealing block 11 (hereinafter, for the convenience of description, this heat-sealing block 11 is called the active heat-sealing block, and the other heat-sealing block is called the fixed heat-sealing block). The assembly plate 22 of the fixed heat-sealing block is fixedly connected to the main body of the bag-sealing machine. Therefore, when the power rod 21 contracts or extends, the active heat-sealing block and the fixed heat-sealing block can be driven to approach or separate from each other. At the same time, cavities are provided in the power rod 21 and the assembly plate 22 to accommodate the circuit matching the heat-sealing block 11. Thus, the heat-sealing block 11 can operate normally.

[0022] The cutting structure 3 includes a cutting knife 31. The cutting knife 31 is slidably arranged in the accommodating groove 111 of the active heat-sealing block.

[0023] The transmission structure 4 includes a transmission wheel 41, a ratchet structure 42, a rack 43, a power wheel 44, and a return spring 45. The transmission wheel 41 is rotatably connected to the assembly plate 22 of the active heat sealing block. A rubber ring is positioned between the transmission wheel 41 and the assembly plate 22 to increase resistance between them. A trigger protrusion 411 is also provided on the transmission wheel 41. The power wheel 44 is rotatably connected to the assembly plate 22 of the active heat sealing block. The ratchet structure 42 is positioned between the transmission wheel 41 and the power wheel 44. The ratchet structure 42 includes an axle 421 and a wheel sleeve 422. The axle 421 is connected to the power wheel 44. The wheel sleeve 422 is mounted on the axle 421. The wheel sleeve 422 is connected to the transmission wheel 41. The rack 43 is fixedly connected to the outer frame of the bag sealing machine. The rack 43 is positioned along the motion path of the heat sealing block 11 and meshes with the power wheel 44. One end of the return spring 45 is connected to the dividing knife 31 , and the other end is connected to the assembly plate 22 of the active heat sealing block.

[0024] In actual use, the two heat-sealing blocks 11 are separated from each other, and the packaging material is pre-inserted between the two heat-sealing blocks 11. When packaging is required, the bag sealing machine is driven. Driven by the bag sealing machine, the power rod 21 begins to contract, thereby driving the active heat-sealing block closer to the fixed heat-sealing block. When the two are in contact, the packaging material is heated and the edges of the packaging material are sealed, so that the packaging material forms an independent small package. Subsequently, the power rod 21 begins to extend, thereby driving the active heat-sealing block away from the fixed heat-sealing block. At this time, the bag sealing machine pulls the packaging material to move so that the next edge sealing process can be carried out.

[0025] At the same time, during the movement of the active heat sealing block toward the fixed heat sealing block, the assembly plate 22 of the active heat sealing block moves synchronously, thereby driving the power wheel 44 to move relative to the rack 43. During the movement of the power wheel 44, because the two are engaged with each other, the power wheel 44 will rotate synchronously. When the power wheel 44 rotates, it will drive the transmission wheel 41 to rotate through the ratchet structure 42. During the movement of the active heat sealing block away from the fixed heat sealing block, although the power wheel 44 also rotates under the action of the rack 43, at this time, the movement direction of the active heat sealing block is opposite, and the rotation direction of the power wheel 44 is opposite. Therefore, under the action of the ratchet structure 42, the power wheel 44 cannot drive the transmission wheel 41 to rotate. In summary, through the above process, the transmission wheel 41 rotates in batches as the edge sealing process of the heat sealing block 11 progresses.

[0026] After the edge sealing process is performed a certain number of times, multiple small packages connected in series are produced. When the aforementioned edge sealing process is performed again, the trigger projection 411 will rotate to a position corresponding to the cutting knife 31 as the edge sealing process progresses. At this time, as the edge sealing process continues, finally, when the active heat-sealing block and the fixed heat-sealing block are fitted together, the trigger projection 411 pushes the cutting knife 31 to slide relative to the heat-sealing block 11, so that the cutting knife 31 extends from the receiving groove 111 of the active heat-sealing block into the receiving groove 111 of the fixed heat-sealing block, thereby completing the cutting of the packaging bag.

[0027] At the same time, when the cutting knife 31 extends out, the return spring 45 is gradually stretched, thus generating elastic force. Then, when the next edge sealing process is carried out, the trigger projection 411 is disengaged from the cutting knife 31, so that the elastic force generated by the return spring 45 is released, and then the cutting knife 31 retracts into the receiving groove 111 of the active heat-sealing block again.

[0028] Thus, by continuously repeating the aforementioned process, multiple packages with small packages connected in series can be continuously produced. During this process, this mechanism can execute independently without manual assistance, thereby effectively reducing the occupation of manpower and lowering the labor cost.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A bag packaging edge embossing mechanism, characterized in that: Comprising: A heat-sealing structure (1), a power structure (2), a dividing structure (3), and a transmission structure (4); The heat-sealing structure (1) includes a heat-sealing block (11); The power structure (2) is connected to the heat-sealing block (11) to drive the heat-sealing blocks (11) to approach or move away from each other; The dividing structure (3) includes a dividing knife (31); The transmission structure (4) includes a transmission wheel (41) and a ratchet structure (42); The transmission wheel (41) is in transmission connection with the power structure (2) through the ratchet structure (42), so that when the heat-sealing blocks approach, the transmission wheel (41) can rotate relative to the dividing knife (31); A trigger protrusion (411) is provided on the transmission wheel (41); When the trigger protrusion (411) abuts against the dividing knife (31), the dividing knife (31) can move relative to the heat-sealing block (11).

2. The edge-sealing and embossing mechanism for a packaging bag according to claim 1, characterized in that: A receiving groove (111) is formed in the heat-sealing block (11); The receiving groove (111) corresponds to the dividing knife (31) to receive the dividing knife (31).

3. A bag edge-sealing and embossing mechanism according to claim 1, characterized in that: The power structure (2) includes a power rod (21); The power rods (21) are respectively arranged at both ends of the heat-sealing block (11); The power rod (21) is connected to one of the heat-sealing blocks (11); When the power rod (21) contracts or extends, it can drive the heat-sealing blocks (11) to approach or move away from each other.

4. The edge-sealing and embossing mechanism for a packaging bag according to claim 3, wherein: The power structure (2) further includes an assembly plate (22); The assembly plate (22) is arranged on one side of the heat-sealing block (11); The assembly plate (22) is connected to the heat-sealing block (11); One of the assembly plates (22) is connected to the transmission wheel (41); The power rod (21) penetrates through the assembly plate (22); The power rod (21) is connected to one of the assembly plates (22); A cavity is formed in the power rod (21) and the assembly plate (22) to accommodate a circuit matching the heat-sealing block (11).

5. A bag edge-sealing and embossing mechanism according to claim 1, characterized in that: The transmission structure (4) further includes a rack (43) and a power wheel (44); The rack (43) is arranged along the movement path of the heat-sealing block (11); The rack (43) is meshed with the power wheel (44); The power wheel (44) is rotatably connected to the power structure (2); The power wheel (44) is connected to the transmission wheel (41) through the ratchet structure (42).

6. A bag edge-sealing and embossing mechanism according to claim 5, characterized in that: The ratchet structure (42) includes a wheel shaft (421) and a wheel sleeve (422); The wheel shaft (421) is connected to the power wheel (44); The wheel sleeve (422) is sleeved on the wheel shaft (421); The wheel sleeve (422) is connected to the transmission wheel (41).

7. A bag edge-sealing and embossing mechanism according to claim 5, characterized in that: The transmission structure (4) further includes a return spring (45); One end of the return spring (45) is connected to the dividing knife (31), and the other end is connected to the power structure (2).

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