Horizontal sealing device for pillow bag

Abstract

The utility model relates to the technical field of packaging machines, and provides a pillow bag transverse sealing device which comprises a rack. The first hot pressing piece is movably arranged on the rack; the second hot-pressing part is movably arranged on the rack, a hot-pressing gap is formed between the first hot-pressing part and the second hot-pressing part and used for allowing a packaging bag to pass through, and after the first hot-pressing part and the second hot-pressing part move and get close to each other, the packaging bag is hot-pressed and transversely sealed; the first cutting piece is movably arranged on the rack; the second cutting piece is movably arranged on the rack, a cutting gap is formed between the first cutting piece and the second cutting piece, the hot-pressing gap leads to the cutting gap, and the first cutting piece and the second cutting piece are used for cutting the packaging bag after getting close to each other. According to the technical scheme, the technical problem of air leakage of a packaging bag sealed by a transverse sealing system in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of packaging machine technology, and more specifically, to a pillow bag horizontal sealing device. Background Technology

[0002] In the production of capsules, traditional Chinese medicine factories often use pillow-type packaging machines. When the pillow-type packaging machine is working, the film winding mechanism first unfolds the packaging film, which is then formed into a cylindrical shape by the forming device to wrap the product. Next, heating and other methods are used to seal the longitudinal and transverse seams of the film, completing the sealed packaging. During this process, a conveyor system feeds the product from the inlet into the packaging area, and the packaged product is then discharged from the outlet. The entire process is highly automated and can efficiently complete the packaging task. However, after the pillow-type packaging machine finishes packaging, air leakage occurs in the bags. Leaking bags need to be reworked, increasing labor costs. Furthermore, rework involves material loss, requiring the use of new packaging materials, which further increases production costs. If a leaking product is detected on the production line, production is suspended for processing, disrupting the production line's rhythm. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a pillow bag horizontal sealing device, which solves the technical problem of air leakage in the packaging bag sealed by the horizontal sealing system in the prior art.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a pillowcase horizontal sealing device, comprising:

[0005] Rack (1);

[0006] The first hot-pressing component (2) is movably mounted on the frame (1);

[0007] The second hot press component (3) is movably mounted on the frame (1). There is a hot press gap (21) between the first hot press component (2) and the second hot press component (3). The hot press gap (21) is used to allow the packaging bag to pass through. After the first hot press component (2) and the second hot press component (3) move closer to each other, the packaging bag is hot-pressed and horizontally sealed.

[0008] The first cutting piece (4) is movably mounted on the frame (1);

[0009] The second cutting element (5) is movably mounted on the frame (1). There is a cutting gap (51) between the first cutting element (4) and the second cutting element (5). The hot pressing gap (21) and the cutting gap (51) are arranged sequentially along the conveying direction of the packaging bag. After the first cutting element (4) and the second cutting element (5) move, they move closer to each other or further away from each other. After the first cutting element (4) and the second cutting element (5) move closer to each other, they are used to cut the packaging bag.

[0010] For example, in a pillow bag horizontal sealing device provided in at least one embodiment of this disclosure, both the first hot pressing member (2) and the second hot pressing member (3) include:

[0011] The first rotating roller (22) is rotatably mounted on the frame (1), and the hot pressing gap (21) is formed between the two first rotating rollers (22).

[0012] The hot pressing block (23) is set on the outer wall of the first rotating roller (22). After the two first rotating rollers (22) rotate, they drive the two hot pressing blocks (23) to move closer or further away from each other. After the two hot pressing blocks (23) move closer to each other, they are used to heat-seal the packaging bag horizontally.

[0013] For example, in a pillow bag horizontal sealing device provided in at least one embodiment of this disclosure, the first rotating roller rotates and is lifted and lowered on the frame.

[0014] For example, in a pillow bag horizontal sealing device provided in at least one embodiment of this disclosure, one end of the hot pressing block is disposed on the first rotating roller, and the other end has an abutting surface. The abutting surface has two sets of convex strips spaced apart along the conveying direction of the packaging bag. The convex strips are used to abut against and hot press the packaging bag.

[0015] For example, in a pillow bag horizontal sealing device provided in at least one embodiment of this disclosure, each group of the convex strips includes a plurality of convex strips, which are spaced apart along the conveying direction of the packaging bag.

[0016] For example, in a pillowcase horizontal sealing device provided in at least one embodiment of this disclosure, both the first cutting member and the second cutting member include:

[0017] The second rotating roller is rotatably mounted on the frame, and the cutting gap is formed between the two second rotating rollers;

[0018] The mounting block is disposed on the outer wall of the second rotating roller;

[0019] The cutter is mounted on the mounting block. After the second rotating roller rotates, it drives the two cutters to rotate through the mounting block. When the two cutters come close to each other, they are used to cut the packaging bag.

[0020] For example, in a pillow bag horizontal sealing device provided in at least one embodiment of this disclosure, the second rotating roller is rotated and lifted on the frame.

[0021] For example, in at least one embodiment of the present disclosure, a pillow bag horizontal sealing device is provided, wherein the mounting block (42) has a groove (421), the length direction of the groove (421) is parallel to the axis of the second rotating roller (41), the depth direction of the groove (421) is radially arranged along the second rotating roller (41), and the cutter (43) is radially slidably disposed in the groove (421). The pillow bag horizontal sealing device further includes:

[0022] An elastic element (44) is provided at one end on the inner wall of the groove (421) and at the other end on the cutter (43). The elastic element (44) is used to push out the cutter (43).

[0023] For example, in at least one embodiment of this disclosure, a pillowcase horizontal sealing device further includes:

[0024] For example, in a pillow bag horizontal sealing device provided in at least one embodiment of the present disclosure, a conveying member (6) is disposed on the frame (1), and the conveying member (6) is used to convey the cut packaging bag.

[0025] The beneficial effects of the embodiments disclosed herein are as follows:

[0026] In this disclosure, after the packaging bag is horizontally sealed, the horizontally sealed area is cooled during the process of being conveyed to the cutting gap. After cooling, the horizontally sealed area is more tightly connected. When the first and second cutting pieces cut the horizontally sealed area, the horizontally sealed area outside the cut is not damaged, thereby reducing the occurrence of air leakage.

[0027] By separating the hot pressing and cutting functions, the packaging bag can be effectively sealed to prevent air leakage from capsule, tablet, and pillow bags, thus ensuring product quality and shelf life. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a pillow bag horizontal sealing device in one embodiment of the present disclosure;

[0030] Figure 2 for Figure 1 A partial structural schematic diagram of a pillow bag horizontal sealing device in one embodiment;

[0031] Figure 3 for Figure 2Enlarged view of point A;

[0032] Figure 4 for Figure 3 Enlarged view of point C;

[0033] Figure 5 for Figure 2 Enlarged view of point B;

[0034] Figure 6 for Figure 1 The embodiment shows another partial structural diagram of a pillow bag for preventing air leakage of capsule tablets.

[0035] In the diagram: 1. Frame, 2. First hot pressing component, 3. Second hot pressing component, 21. Hot pressing gap, 4. First cutting component, 5. Second cutting component, 51. Cutting gap, 22. First rotating roller, 23. Hot pressing block, 24. Abutting surface, 25. Protruding strip, 41. Second rotating roller, 42. Mounting block, 43. Cutter, 421. Slide groove, 44. Elastic component, 6. Conveying component. Detailed Implementation

[0036] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0037] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0038] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0039] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] like Figures 1-4 The diagram illustrates a pillow bag horizontal sealing device according to an embodiment of the present disclosure, comprising a frame 1; a first hot-pressing component 2 movably disposed on the frame 1; a second hot-pressing component 3 movably disposed on the frame 1, with a hot-pressing gap 21 between the first hot-pressing component 2 and the second hot-pressing component 3 for passing through a packaging bag; a first cutting component 4 movably disposed on the frame 1; a second cutting component 5 movably disposed on the frame 1, with a cutting gap 51 between the first cutting component 4 and the second cutting component 5, the hot-pressing gap 21 and the cutting gap 51 being arranged sequentially along the packaging bag conveying direction; the first cutting component 4 and the second cutting component 5 moving closer to or further away from each other, and the first cutting component 4 and the second cutting component 5 moving closer to each other for cutting the packaging bag.

[0043] For example, such as Figure 2As shown, when the packaging bag is conveyed to the heat-pressing gap 21 between the first heat-pressing component 2 and the second heat-pressing component 3, the first heat-pressing component 2 and the second heat-pressing component 3 are controlled to move closer to each other to perform heat-pressing and horizontal sealing on the packaging bag. After heat-pressing is completed, the packaging bag continues to move to the cutting gap 51 between the first cutting component 4 and the second cutting component 5. At this time, the first cutting component 4 and the second cutting component 5 are controlled to move closer to each other to cut the packaging bag. This disclosure improves the prior art of performing horizontal sealing and cutting simultaneously by performing horizontal sealing first and then cutting. When the packaging bag is horizontally sealed and cut simultaneously, the horizontal sealing area of ​​the newly horizontally sealed bag will melt. When the first cutting component 4 and the second cutting component 5 cooperate to cut the horizontal sealing area, there is a risk of tearing the horizontal sealing area, which will lead to air leakage of the packaging bag. After the packaging bag is horizontally sealed, the horizontal sealing area will cool down during the process of being conveyed to the cutting gap 51. After cooling, the horizontal sealing area is more tightly connected. When the first cutting component 4 and the second cutting component 5 cut the horizontal sealing area, the horizontal sealing area outside the cut will not be damaged, thereby reducing the occurrence of air leakage.

[0044] By separating the hot pressing and cutting functions, the packaging bag can be effectively sealed to prevent air leakage from capsule, tablet, and pillow bags, thus ensuring product quality and shelf life.

[0045] In some examples, the first rotating roller 22 is rotatably mounted on the frame 1, and the hot pressing gap 21 is formed between the two first rotating rollers 22; the hot pressing block 23 is mounted on the outer wall of the first rotating roller 22. After the two first rotating rollers 22 rotate, they drive the two hot pressing blocks 23 to move closer or further away from each other. After the two hot pressing blocks 23 move closer to each other, they are used to hot press and seal the packaging bag horizontally.

[0046] For example, such as Figure 2 As shown, the first rotating roller 22 is driven to rotate. When the packaging bag enters the hot pressing gap 21, the two hot pressing blocks 23 move closer to each other as the first rotating roller 22 rotates, and perform hot pressing and horizontal sealing on the packaging bag.

[0047] The structure of the first rotating roller 22 and the hot pressing block 23 enables continuous hot pressing and horizontal sealing, improving production efficiency. The rotation of the rotating roller ensures that the hot pressing block 23 applies more uniform heat to the packaging bag, guaranteeing the heat pressing effect and further preventing air leakage.

[0048] In some examples, the first rotating roller 22 rotates and is lifted and lowered on the frame 1.

[0049] For example, such as Figure 6As shown, a height-adjustable and rotatable structure is provided on the frame 1 to mount the first rotating roller 22. For example, a bearing housing with a lifting function can be used, which can realize both the rotation and height adjustment of the first rotating roller 22. The height of the first rotating roller 22 is adjusted according to the thickness of the packaging bag and the heat-sealing requirements, and then the first rotating roller 22 is driven to rotate to perform the heat-sealing horizontal sealing operation.

[0050] The first rotating roller 22 is height-adjustable, accommodating packaging bags of different thicknesses and improving the system's versatility and adaptability. By adjusting the height of the first rotating roller 22, the heat-pressing pressure of the hot pressing block 23 on the packaging bag can be optimized, thereby improving the heat-pressing effect and better preventing air leakage.

[0051] In some examples, one end of the hot press block 23 is disposed on the first rotating roller 22, and the other end has an abutment surface 24. The abutment surface 24 has two sets of raised strips 25 spaced apart along the conveying direction of the packaging bag. The raised strips 25 are used to abut and hot press the packaging bag.

[0052] For example, such as Figure 4 As shown, one end of the hot pressing block 23 is mounted on the first rotating roller 22. When the first rotating roller 22 rotates and the two hot pressing blocks 23 approach each other to heat-press the packaging bag, the protruding strips 25 on the contact surface 24 of the hot pressing block 23 contact the packaging bag, and press and heat the packaging bag, so that texture appears on the hot-pressed packaging bag.

[0053] The raised strips 25 increase the contact pressure between the hot pressing block 23 and the packaging bag, making the hot pressing tighter and enhancing the sealing effect of the packaging bag, effectively preventing air leakage. Two sets of raised strips 25 spaced apart along the packaging bag conveying direction can form multiple sealing structures on the packaging bag, further improving the sealing performance.

[0054] In some examples, each set of raised strips 25 includes several raised strips, which are spaced apart along the conveying direction of the packaging bag.

[0055] For example, such as Figure 4 As shown, when the hot press block 23 heat-presses the packaging bag, several raised strips simultaneously contact the packaging bag for heat pressing. The presence of multiple raised strips allows for more precise heat pressing, better adapting to the material and shape of the packaging bag, and further improving the heat-press sealing effect. The raised strips distribute the heat-pressing pressure to multiple points, preventing excessive local pressure from damaging the packaging bag, while also ensuring the overall sealing effect.

[0056] In some examples, the second rotating roller 41 is rotatably mounted on the frame 1, and a cutting gap 51 is formed between the two second rotating rollers 41; the mounting block 42 is mounted on the outer wall of the second rotating roller 41; the cutter 43 is mounted on the mounting block 42. After the second rotating roller 41 rotates, it drives the two cutters 43 to rotate through the mounting block 42. After the two cutters 43 come close to each other, they are used to cut the packaging bag.

[0057] For example, such as Figure 5 As shown, the second rotating roller 41 is driven to rotate, which in turn drives the two cutters 43 to rotate via the mounting block 42. When the packaging bag enters the cutting gap 51, the two cutters 43 move closer to each other and cut the packaging bag.

[0058] The structure of the second rotating roller 41 and the cutter 43 enables continuous cutting, improving production efficiency. The rotation of the second rotating roller 41 makes the cutting motion of the cutter 43 more stable, ensuring cutting quality.

[0059] In some examples, the second rotating roller 41 is rotated and lifted on the frame 1.

[0060] For example, such as Figure 6 As shown, the height of the second rotating roller 41 is adjusted according to the thickness of the packaging bag and the cutting requirements, and then the second rotating roller 41 is driven to rotate for cutting. The second rotating roller 41 is height-adjustable, which can adapt to packaging bags of different thicknesses, improving the versatility and adaptability of the system. By adjusting the height of the second rotating roller 41, the cutting pressure and cutting position of the cutter 43 on the packaging bag can be optimized, thereby improving the cutting effect.

[0061] In some examples, the mounting block 42 has a groove 421, the length direction of which is parallel to the axis of the second rotating roller 41, and the depth direction of which is radially arranged along the second rotating roller 41. The cutter 43 is radially slidably disposed within the groove 421. The pillowcase horizontal sealing device further includes:

[0062] The elastic element 44 has one end disposed on the inner wall of the slide groove 421 and the other end disposed on the cutter 43. The elastic element 44 is used to push out the cutter 43.

[0063] For example, such as Figure 5 As shown, a mounting block 42 with a groove 421 is installed on the outer wall of the second rotating roller 41, and the cutter 43 is slidably disposed in the groove 421. One end of the elastic member 44 is installed on the inner wall of the groove 421, and the other end is installed on the cutter 43.

[0064] When the second rotating roller 41 rotates and the two cutters 43 approach each other to cut the packaging bag, the elastic element 44 pushes the cutters 43 outward, ensuring close contact between the cutters 43 and the packaging bag for cutting. Under normal circumstances, the cutters 43 are always pushed out during the cutting process, and the elastic element 44 does not contract. However, when the conveyed capsules become misaligned, the elastic element 44 is compressed and contracts due to the pressure between the two cutters 43 on other structures of the packaging bag. This prevents damage to other structures and protects the cutters 43. The elastic element 44 buffers the cutting pressure, preventing damage to the cutters 43. The elastic element 44 also buffers the impact during the cutting process, reducing wear and damage to the cutters 43 and extending their service life.

[0065] In some examples, the conveyor 6 is mounted on the frame 1, and the cutting gap 51 leads to the conveyor 6, which is used to convey the cut packaging bags.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A horizontal sealing device for a pillowcase, characterized in that, include: Rack (1); The first hot-pressing component (2) is movably mounted on the frame (1); The second hot press component (3) is movably mounted on the frame (1). There is a hot press gap (21) between the first hot press component (2) and the second hot press component (3). The hot press gap (21) is used to allow the packaging bag to pass through. After the first hot press component (2) and the second hot press component (3) move closer to each other, the packaging bag is hot-pressed and horizontally sealed. The first cutting piece (4) is movably mounted on the frame (1); The second cutting element (5) is movably mounted on the frame (1). There is a cutting gap (51) between the first cutting element (4) and the second cutting element (5). The hot pressing gap (21) and the cutting gap (51) are arranged sequentially along the conveying direction of the packaging bag. After the first cutting element (4) and the second cutting element (5) move, they move closer to each other or further away from each other. After the first cutting element (4) and the second cutting element (5) move closer to each other, they are used to cut the packaging bag.

2. The pillowcase horizontal sealing device according to claim 1, characterized in that, Both the first hot-pressing component (2) and the second hot-pressing component (3) include: The first rotating roller (22) is rotatably mounted on the frame (1), and the hot pressing gap (21) is formed between the two first rotating rollers (22). The hot pressing block (23) is set on the outer wall of the first rotating roller (22). After the two first rotating rollers (22) rotate, they drive the two hot pressing blocks (23) to move closer or further away from each other. After the two hot pressing blocks (23) move closer to each other, they are used to heat-seal the packaging bag horizontally.

3. The pillowcase horizontal sealing device according to claim 2, characterized in that, The first rotating roller (22) is rotated and lifted on the frame (1).

4. The pillowcase horizontal sealing device according to claim 2, characterized in that, One end of the hot pressing block (23) is disposed on the first rotating roller (22), and the other end has an abutting surface (24). The abutting surface (24) has two sets of convex strips (25) arranged at intervals along the conveying direction of the packaging bag. The convex strips (25) are used to abut and hot press the packaging bag.

5. A pillowcase horizontal sealing device according to claim 4, characterized in that, Each of the convex segments (25) includes several convex strips, which are spaced apart along the conveying direction of the packaging bag.

6. The pillowcase horizontal sealing device according to claim 1, characterized in that, Both the first cutting element (4) and the second cutting element (5) include: The second rotating roller (41) is rotatably mounted on the frame (1), and the cutting gap (51) is formed between the two second rotating rollers (41). The mounting block (42) is disposed on the outer wall of the second rotating roller (41); The cutter (43) is mounted on the mounting block (42). After the second rotating roller (41) rotates, it drives the two cutters (43) to rotate through the mounting block (42). After the two cutters (43) come close to each other, they are used to cut the packaging bag.

7. A pillowcase horizontal sealing device according to claim 6, characterized in that, The second rotating roller (41) is rotated and lifted on the frame (1).

8. A pillowcase horizontal sealing device according to claim 6, characterized in that, The mounting block (42) has a groove (421), the length direction of which is parallel to the axis of the second rotating roller (41), and the depth direction of which is radially arranged along the second rotating roller (41). The cutter (43) is radially slidably disposed within the groove (421). The pillow bag horizontal sealing device further includes: The elastic element (44) has one end disposed on the inner wall of the groove (421) and the other end disposed on the cutter (43). The elastic element (44) is used to push out the cutter (43).

9. A pillowcase horizontal sealing device according to claim 1, characterized in that, Also includes: A conveyor (6) is disposed on the frame (1) and is used to convey the cut packaging bag.

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