Heat sealing assembly

Abstract

The utility model discloses a heat-sealing assembly, and relates to the technical field of medical packaging bag production, the heat-sealing assembly is used for heat-sealing a target product conveyed by a conveying frame, the conveying frame is provided with at least two supporting plates which are arranged at intervals, the arrangement direction of the supporting plates is the same as the conveying direction of the target product, and the target product is provided with a first long edge and a second long edge which are arranged at intervals. The heat sealing assembly comprises a rack arranged on the conveying frame; the heat sealing block is arranged on the rack and corresponds to one side of the first long edge; the supporting table is arranged on the rack and used for abutting against the side, away from the heat sealing block, of the first long edge; the supporting frame is arranged between the target product and the supporting plates, the two ends of the supporting frame are in lap joint with at least one supporting plate, and the side, away from the supporting plates, of the supporting frame abuts against the side, facing the supporting plates, of the second long edge. According to the technical scheme, the target product is supported by the supporting frame, and the problem that the opposite side of the target product droops when the target product is subjected to heat sealing is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical packaging bag production, in particular to a heat sealing component. Background Art

[0002] Medical packaging bags are essential materials used in the healthcare industry to package medical devices, consumables, tools, and other medical supplies. During the production process, heat-sealing molds are often used to heat-seal the edges of semi-finished products to facilitate further production. Currently, heat sealing is typically accomplished by passing one edge of the semi-finished product through a heat-sealing assembly during transport.

[0003] However, when the existing heat sealing assembly is used to heat seal a target product, there is a problem that one side of the target product sags. Utility Model Content

[0004] The main purpose of the utility model is to provide a heat sealing component, which aims to solve the problem that one side of the target product sags when the target product is heat sealed.

[0005] To achieve the above-mentioned object, the present invention proposes a heat sealing assembly, which is used to heat seal a target product conveyed by a conveyor frame, wherein the conveyor frame has at least two support plates spaced apart and arranged in the same direction as the conveying direction of the target product, and the target product has a first long side and a second long side spaced apart. The heat sealing assembly includes:

[0006] a frame, arranged on the conveying frame;

[0007] a heat sealing block, provided on the frame and corresponding to one side of the first long side;

[0008] a support platform, provided on the frame, for abutting against a side of the first long side away from the heat sealing block; and

[0009] A support frame is provided between the target product and the support plate, and both ends of the support frame are respectively overlapped with at least one of the support plates, and a side of the support frame facing away from the support plate abuts against a side of the second long side facing the support plate.

[0010] In one embodiment, the support frame comprises:

[0011] horizontal board;

[0012] vertical plates, two of which are provided at intervals along the length direction of the horizontal plate; and

[0013] Positioning block, at least one positioning block is provided on a side of each vertical plate close to the support plate;

[0014] The positioning block is overlapped on the top of the support plate so that the side of the horizontal plate facing away from the vertical plate abuts against the side of the second long side facing the support plate.

[0015] In one embodiment, each vertical plate is provided with at least one positioning groove on one side close to the support plate, and each positioning groove is provided with a corresponding positioning block. The positioning groove is used to cooperate with the positioning block to position the positioning block at different height positions of the vertical plate.

[0016] In one embodiment, two positioning grooves are provided at intervals along the width direction of the vertical plate.

[0017] In one embodiment, the support frame further includes a fastener, the positioning block is provided with a through hole, and one end of the fastener can pass through the through hole and extend into the positioning groove to fix the positioning block on the vertical plate.

[0018] In one embodiment, the fastener comprises a bolt, one end of which passes through the through hole and is threadedly connected to the positioning groove.

[0019] In one embodiment, the positioning groove is in the shape of a rectangle, and the length of the long side of the rectangle matches the height of the vertical plate, so as to achieve precise positioning and fixing functions.

[0020] In one embodiment, the support frame further includes a fixing block provided on a side of the vertical plate away from the positioning block, and a side of the fixing block close to the horizontal plate is fixedly connected to the horizontal plate.

[0021] In one embodiment, the support frame also includes a connecting piece, a first fixing groove is provided on the side of the horizontal plate close to the vertical plate, a second fixing groove is provided on the side of the vertical plate away from the positioning groove, and both adjacent sides of the fixing block are provided with penetrating connecting holes, one of the connecting holes is arranged corresponding to the first fixing groove, and the other connecting hole is arranged corresponding to the second fixing groove, so that both sides of the fixing block are fixedly connected to the horizontal plate and the vertical plate respectively through the connecting piece.

[0022] In one embodiment, the length of the heat-sealing block is greater than 120 cm; or,

[0023] The length of the heat-sealing block is equal to 120 cm.

[0024] In the technical solution provided by the present invention, the heat sealing block can be conveniently installed through the provided frame, and can provide support for the heat sealing block. The length direction of the heat sealing block is arranged parallel to the conveying direction of the target product, and is arranged corresponding to the first long side of the target product, and can bond the edges of two or more layers of semi-finished products together by heating and pressurizing. Moreover, the use of the provided support table can effectively reduce the possibility of deformation or collapse of the target product during the heat sealing process. In addition, through the provided support frame, when one side of the target product needs to be heat-sealed, the support frame is brought into contact with the opposite side of the target product. At this time, the target product achieves the flatness and consistency of the first long side and the second long side through the support frame, reducing the possibility of the target product sagging on the opposite side and causing wrinkles in the subsequent work section. The technical solution proposed in the embodiment of the present utility model can support the opposite side of the target product during the heat sealing process, thereby improving the quality and consistency of the target product and reducing the possibility of wrinkles in the subsequent work section due to sagging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of an embodiment of a heat sealing assembly provided by the present invention;

[0027] Figure 2 A partial structural schematic diagram of an embodiment of a heat sealing assembly provided by the present utility model;

[0028] Figure 3 A schematic structural diagram of an embodiment of a support frame provided by the present invention;

[0029] Figure 4 A schematic structural diagram of an embodiment of a positioning block provided by the utility model;

[0030] Figure 5 This is a partial structural schematic diagram of an embodiment of the support frame provided by the utility model from another perspective.

[0031] Description of Figure Numbers:

[0032] 10. Conveyor rack; 11. Support plate; 20. Frame; 30. Heat sealing block; 40. Support platform; 50. Support rack; 51. Horizontal plate; 511. First fixing groove; 52. Vertical plate; 521. Positioning groove; 522. Second fixing groove; 53. Positioning block; 531. Through hole; 54. Fastener; 55. Fixing block; 56. Connector.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] During the production of medical packaging bags, process requirements necessitate heat-sealing the edges of semi-finished products using heat-sealing dies to facilitate further production. Currently, this method typically involves passing one edge of the semi-finished product through a heat-sealing assembly during transport. However, due to the width of the target product, the heat-sealing assembly has a limited contact area with the product during heat sealing. This heat-sealing method can result in sagging on the opposite side of the target product, leading to wrinkles in subsequent processing steps.

[0038] In view of this, an embodiment of the present invention provides a heat sealing assembly, which can support the opposite side during the process of heat sealing one side of the medical packaging bag. A height-adjustable support frame is set on the side of the medical packaging bag away from the heat sealing assembly, and the support frame is overlapped on the support plate of the conveyor frame, so that the height of the support frame can be adjusted according to the needs of the production process, so that the support frame has different supporting effects, so as to support the opposite side of the medical packaging bag and reduce the possibility of wrinkles in subsequent work sections due to sagging.

[0039] In order to better understand the above technical solution, the above technical solution is described in detail below with reference to the accompanying drawings.

[0040] See also Figure 1 、 Figure 2 as well as Figure 3 The present invention provides a heat sealing assembly for heat-sealing a target product conveyed by a conveyor frame 10. The conveyor frame 10 includes at least two support plates 11 spaced apart and arranged in the same direction as the conveying direction of the target product. The target product has a first long side and a second long side spaced apart. The heat sealing assembly includes:

[0041] The frame 20 is provided on the conveying frame 10;

[0042] The heat sealing block 30 is provided on the frame 20 and is provided corresponding to one side of the first long side;

[0043] a support platform 40 , provided on the frame 20 , for contacting a side of the first long side away from the heat sealing block 30 ; and

[0044] The support frame 50 is arranged between the target product and the support plate 11, and both ends of the support frame 50 are respectively overlapped with at least one support plate 11, and the side of the support frame 50 facing away from the support plate 11 is abutted against the side of the second long side facing the support plate 11.

[0045] In the technical solution adopted in this embodiment, the heat sealing block 30 can be easily installed by the provided frame 20, and can provide support for the heat sealing block 30. The length direction of the heat sealing block 30 is arranged parallel to the conveying direction of the target product, and is arranged corresponding to the first long side of the target product, and can bond the edges of two or more layers of semi-finished products together by heating and pressurizing. Moreover, the support table 40 provided can effectively reduce the possibility of deformation or collapse of the target product during the heat sealing process. In addition, by providing the support frame 50, when it is necessary to heat seal one side of the target product, the support frame 50 is brought into contact with the opposite side of the target product. At this time, the target product achieves flatness and consistency of the first long side and the second long side through the support frame 50, reducing the possibility of sagging on the opposite side of the target product and causing wrinkles in the subsequent process. The technical solution proposed in the embodiment of the utility model can support the opposite side of the target product during the heat sealing process, thereby improving the quality and consistency of the target product and reducing the possibility of wrinkles in the subsequent process due to sagging.

[0046] Specifically, the heat sealing assembly includes a frame 20 , a heat sealing block 30 , a support platform 40 and a support frame 50 .

[0047] The frame 20 can be made of metal materials such as stainless steel and alloy, has a certain load-bearing capacity, and can provide support. The frame 20 can be fixed to the conveyor frame 10 by welding or bolts, or can be movably arranged above the conveyor frame 10.

[0048] The heat sealing block 30 is movably mounted on the frame 20. It can be moved relative to the frame 20 under the influence of an external force, thereby heat-sealing the target product on the conveyor rack 10. It will be appreciated that the heat sealing block 30 can apply pressure to the semi-finished product while or after heating, thereby bonding the edges of two or more layers of the semi-finished product together. To facilitate heat sealing the edges of the target product, the heat sealing block 30 can be movably connected to the frame 20 using a sliding track or cylinder, allowing the position of the heat sealing block 30 relative to the target product to be adjusted according to different product sizes and shapes to meet diverse heat sealing requirements.

[0049] The support platform 40 is used to provide support for the first long side of the target product, thereby reducing the possibility of deformation or collapse of the target product when the heat sealing block 30 heat-seals the target product, and helping to maintain the shape and position of the target product. It is understood that the support platform 40 can be fixedly connected to the frame 20 and configured as an integral molding to provide better overall structural strength and stability; it can also be provided separately from the frame 20 to provide greater flexibility.

[0050] The support frame 50 is used to support the second long side of the target product. It is understood that the support frame 50 can abut against the second long side of the target product facing away from the heat sealing block 30 during the heat sealing process, thereby reducing the possibility of sagging on the second long side of the target product. Moreover, the support frame 50 overlaps the support plate 11, making the position where the support frame 50 abuts the target product adjustable. In this way, according to the different requirements of the target product during the production process, the support frame 50 can be made to abut the second long side of the target product, or abut a position close to the second long side, so that the support frame 50 can support different areas to reduce deformation and sagging caused by internal pressure.

[0051] Further, refer to Figure 3 In one embodiment of the present invention, the support frame 50 includes:

[0052] horizontal board 51;

[0053] Two vertical plates 52 are provided at intervals along the length of the horizontal plate 51; and

[0054] Positioning block 53: at least one positioning block 53 is provided on one side of each riser 52 close to the support plate 11;

[0055] The positioning block 53 is overlapped on the top of the support plate 11 so that the side of the horizontal plate 51 facing away from the vertical plate 52 abuts against the side of the second long side facing the support plate 11 .

[0056] In the technical solution adopted in this embodiment, the support frame 50 may also include a horizontal plate 51, a vertical plate 52 and a positioning block 53. In this embodiment, the horizontal plate 51 is used to carry or support the target product, and can abut against the second long side of the target product to provide horizontal support so that the target product remains flat. The vertical plate 52 is vertically connected to the horizontal plate 51 and can provide vertical support to ensure structural strength. The positioning block 53 is provided on the vertical plate 52 and is used to overlap the top of the support plate 11 to provide support so that the support plate 11 can provide support for the support frame 50. It can be understood that both ends of the horizontal plate 51 need to be supported by a positioning block 53 to ensure that the horizontal plate 51 is flat in the horizontal direction and reduce the possibility of sagging of the target product. In this embodiment, the shape of the positioning block 53 can be triangular or rectangular, which is not limited here.

[0057] Further, refer to Figure 1 、 Figure 3 In one embodiment of the present invention, each vertical plate 52 is provided with at least one positioning groove 521 on one side close to the support plate 11, and each positioning groove 521 is provided with a corresponding positioning block 53. The positioning groove 521 is used to cooperate with the positioning block 53 so that the positioning block 53 is positioned at different height positions of the vertical plate 52.

[0058] In the technical solution adopted in this embodiment, at least one positioning groove 521 is provided on the side of each vertical plate 52 close to the support plate 11. The positioning groove 521 can be a longitudinally extending notch. Correspondingly, the positioning block 53 can have an extension or an insert that can be embedded in the positioning groove 521. The matching relationship between the positioning groove 521 and the positioning block 53 allows the positioning block 53 to be positioned along the height direction on the vertical plate 52. By changing the height position of the positioning block 53 on the vertical plate 52, the structure of the support frame 50 can be adjusted to meet the support requirements of different heights. It is understandable that the length of the vertical plate 52 should be less than or equal to the height of the support plate 11. In this way, when the position where the positioning block 53 is fixed to the vertical plate 52 rises or falls, the distance between the horizontal plate 51 and the support plate 11 decreases or increases accordingly, so that the support frame 50 has different support effects.

[0059] Further, refer to Figure 3 In one embodiment of the present invention, two positioning grooves 521 are provided at intervals along the width direction of the vertical plate 52 .

[0060] In the technical solution adopted in this embodiment, two positioning slots 521 are provided at intervals along the width of the vertical plate 52. This arrangement allows the side of the vertical plate 52 facing the support plate 11 to be connected to two positioning blocks 53. When in use, the two positioning blocks 53 are located at the same height on the vertical plate 52, providing the vertical plate 52 with two support points. These two support points can work together to provide more stable support. Of course, an adjustment mechanism can also be provided that is transmission-connected to the two positioning blocks 53. Through fine adjustment of the adjustment mechanism, it is possible to ensure more uniform contact between the surface of the horizontal plate 51 and the target product plane, thereby improving overall flatness.

[0061] Further, refer to Figure 3 、 Figure 4 In one embodiment of the present invention, the support frame 50 further includes a fastener 54 , and the positioning block 53 is provided with a through hole 531 . One end of the fastener 54 can pass through the through hole 531 and extend into the positioning groove 521 to fix the positioning block 53 on the vertical plate 52 .

[0062] In the technical solution adopted in this embodiment, the fastener 54 can conveniently realize the movable connection between the positioning block 53 and the riser 52. One end of the fastener 54 is connected to the positioning block 53, and the other end is connected to the riser 52, thereby fixing the positioning block 53 to the side of the riser 52 facing the support plate 11. Preferably, a ring extension can be provided at the end of the fastener 54 near the positioning block 53, extending toward the periphery of the fastener 54. When the end of the fastener 54 facing away from the extension passes through the through hole 531 and extends into the positioning groove 521, the fastener 54 is locked by external force. The extension can abut against one side of the positioning block 53 to ensure a firm connection between the fastener 54 and the positioning block 53, thereby ensuring that the positioning block 53 is fixed on the riser 52. Of course, a groove or other structure corresponding to the extension can also be provided around the through hole 531 to cooperate with the extension to make the connection between the fastener 54 and the positioning block 53 more stable.

[0063] Further, refer to Figure 4 In one embodiment of the present invention, the fastener 54 includes a bolt, one end of which passes through the through hole 531 and is threadedly connected to the positioning groove 521.

[0064] In the technical solution adopted in this embodiment, fastener 54 can also be a bolt. It will be appreciated that protrusions facing the central axis are provided on both sides of the notch of positioning slot 521. When one end of the bolt passes through through-hole 531 and contacts the notch of positioning slot 521, external force can be applied to rotate the bolt, causing it to engage with the protrusions, thereby achieving a threaded connection between the bolt and riser 52. The positioning block 53 is detachably connected to the riser 52 via bolts, facilitating assembly and disassembly and improving reliability.

[0065] Further, refer to Figure 3 In one embodiment of the present invention, the positioning groove 521 is in the shape of a rectangle, and the length of the long side of the rectangle matches the height of the vertical plate 52 to achieve precise positioning and fixing functions.

[0066] In the technical solution adopted in this embodiment, the positioning groove 521 is rectangular in shape, allowing the positioning block 53 to be precisely positioned along the height of the riser 52, ensuring the stability and accuracy of the support frame 50 structure. The matching of the long side of the rectangular positioning groove 521 with the height of the riser 52 provides a clear reference edge, along which the positioning block 53 can be smoothly fixed at the desired height. In this embodiment, the width of the positioning groove 521 should be selected according to the requirements of the fastener 54 to ensure a secure connection between the positioning block 53 and the riser 52 and reduce the possibility of loosening.

[0067] Further, refer to Figure 3 、 Figure 5In one embodiment of the present invention, the support frame 50 further includes a fixing block 55 , which is disposed on a side of the vertical plate 52 away from the positioning block 53 , and the fixing block 55 is fixedly connected to the horizontal plate 51 on a side close to the horizontal plate 51 .

[0068] In the technical solution adopted in this embodiment, the horizontal plate 51 and the vertical plate 52 can be easily assembled and disassembled by setting a fixed block 55. The vertical plates 52 in this embodiment can be set to two or more, which is not limited here. In the following description, two vertical plates 52 are set for introduction. In this embodiment, the two ends of the horizontal plate 51 are respectively connected to a vertical plate 52 through a fixed block 55, and the two vertical plates 52 can be set on the side where the two support plates 11 are close to each other. In this way, when the support frame 50 is placed between the two support plates 11, the two sides of the two vertical plates 52 that are away from each other are respectively in contact with the two support plates 11, thereby reducing the possibility of displacement of the support frame 50 during the process of the support frame 50 supporting the target product.

[0069] Further, refer to Figure 5 In one embodiment of the present invention, the support frame 50 also includes a connecting member 56, a first fixing groove 511 is provided on the side of the horizontal plate 51 close to the vertical plate 52, a second fixing groove 522 is provided on the side of the vertical plate 52 away from the positioning groove 521, and both adjacent sides of the fixing block 55 are provided with penetrating connecting holes, one of the connecting holes is arranged corresponding to the first fixing groove 511, and the other connecting hole is arranged corresponding to the second fixing groove 522, so that both sides of the fixing block 55 are fixedly connected to the horizontal plate 51 and the vertical plate 52 respectively through the connecting member 56.

[0070] In the technical solution adopted in this embodiment, two connecting members 56 are provided, and the two connecting members 56 are connected to two adjacent connecting holes of the fixing block 55, so that they cooperate with the first fixing groove 511 and the second fixing groove 522, which can limit the fixed position of the horizontal plate 51 and the vertical plate 52, so that the horizontal plate 51 and the vertical plate 52 are installed and fixed in the predetermined position, thereby ensuring the stability of the support frame 50.

[0071] Further, refer to Figure 1 、 Figure 2 In one embodiment of the present invention, the length of the heat sealing block 30 is greater than 120 cm; or

[0072] The length of the heat sealing block 30 is equal to 120 cm.

[0073] In the technical solution adopted in this embodiment, by setting the length of the heat sealing block 30 to be greater than or equal to 120 cm, a sufficient heat sealing area can be provided. That is, the length of the contact area between the heat sealing block 30 and the edge of the target product can be increased, so that a longer length of the edge of the target product can be heat-sealed at the same time, thereby improving the heat sealing efficiency.

[0074] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat sealing component, characterized in that: The heat sealing assembly is used to heat seal a target product conveyed by a conveyor frame, wherein the conveyor frame has at least two support plates spaced apart and arranged in the same direction as the conveying direction of the target product, and the target product has a first long side and a second long side spaced apart. The heat sealing assembly includes: a frame, arranged on the conveying frame; a heat sealing block, provided on the frame and corresponding to one side of the first long side; a support platform, provided on the frame, for abutting against a side of the first long side away from the heat sealing block; and A support frame is provided between the target product and the support plate, and both ends of the support frame are respectively overlapped with at least one of the support plates, and a side of the support frame facing away from the support plate abuts against a side of the second long side facing the support plate.

2. The heat sealing assembly according to claim 1, wherein The support frame comprises: horizontal board; vertical plates, two of which are provided at intervals along the length direction of the horizontal plate; and Positioning block, at least one positioning block is provided on a side of each vertical plate close to the support plate; The positioning block is overlapped on the top of the support plate so that the side of the horizontal plate facing away from the vertical plate abuts against the side of the second long side facing the support plate.

3. The heat sealing assembly according to claim 2, wherein: Each vertical plate is provided with at least one positioning groove on one side close to the support plate. Each positioning groove is provided with a corresponding positioning block. The positioning groove is used to cooperate with the positioning block to position the positioning block at different heights of the vertical plate.

4. The heat sealing assembly according to claim 3, wherein: Two positioning grooves are provided at intervals along the width direction of the vertical plate.

5. The heat sealing assembly according to claim 3 or 4, characterized in that: The support frame further includes a fastener, and the positioning block is provided with a through hole. One end of the fastener can pass through the through hole and extend into the positioning groove to fix the positioning block on the vertical plate.

6. The heat sealing assembly according to claim 5, wherein: The fastener comprises a bolt, one end of which passes through the through hole and is threadedly connected to the positioning groove.

7. The heat sealing assembly according to claim 6, wherein: The positioning groove is in the shape of a rectangle, and the length of the long side of the rectangle matches the height of the vertical plate, so as to achieve precise positioning and fixing functions.

8. The heat sealing assembly according to claim 2, wherein: The support frame further comprises a fixing block, which is arranged on a side of the vertical plate away from the positioning block, and a side of the fixing block close to the horizontal plate is fixedly connected to the horizontal plate.

9. The heat sealing assembly according to claim 8, wherein: The support frame also includes a connecting piece, a first fixing groove is provided on the side of the horizontal plate close to the vertical plate, a second fixing groove is provided on the side of the vertical plate away from the positioning groove, and penetrating connecting holes are provided on both adjacent sides of the fixing block, one of the connecting holes is arranged corresponding to the first fixing groove, and the other connecting hole is arranged corresponding to the second fixing groove, so that both sides of the fixing block are fixedly connected to the horizontal plate and the vertical plate respectively through the connecting piece.

10. The heat sealing assembly according to claim 1, wherein: The length of the heat-sealing block is greater than 120 cm; or The length of the heat-sealing block is equal to 120 cm.

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