An adhesive tape attaching device

Abstract

The application provides a kind of adhesive tape bonding device, belong to packaging equipment field.The adhesive tape bonding device includes support frame and two suction members arranged on the support frame, two suction members are each provided with suction surface for adsorbing adhesive tape, the drive mechanism for driving two suction members relative opening and closing is further provided on the support frame, two suction members are arranged in sequence, the junction line of two suction surfaces is folding center line, the guide structure is arranged between support frame and two suction members, the guide structure includes the arc-shaped track arranged on one of support frame and suction member and the sliding body on the other, the sliding body is rotationally stopped with arc-shaped track and guided cooperation, the curvature center of arc-shaped track is located at folding center line.The application is by two suction members arranged in sequence, and utilizes the guide structure between suction member and support frame, so that two suction members can rotate around folding center line, to prevent the excess adhesive tape part that adhesive tape bonded on continuous packaging bag does not effectively bond.

Description

Technical Field

[0001] This invention belongs to the field of packaging equipment, and in particular relates to a tape bonding device. Background Technology

[0002] Instant noodles and other convenience foods use individual packaging bags for seasonings or ingredients. During production, the seasonings or ingredients are first quantitatively filled and sealed into continuous packaging bags, forming interconnected packets. Then, the continuous packaging bags are cut and separated. If a packet in a continuous packaging bag is damaged or leaks, the packet needs to be cut off immediately, and the continuous packaging bags need to be re-attached with tape to facilitate continuous operation on the production line.

[0003] Adhesive tape application is generally done manually, which is prone to wrinkles and unevenness, and is also inefficient. A Chinese utility model patent with authorization publication number CN207943269U discloses a thread labeling device for applying tape to continuous packaging bags, thus solving the above technical problems. This thread labeling device includes a support frame and a flipping mechanism mounted on the support frame. The flipping mechanism includes a first and second label-absorbing plate arranged at intervals. Both the first and second label-absorbing plates are hinged to the support frame. The first and second label-absorbing plates can be opened and closed by a rotating mechanism installed within the support frame. Vacuum adsorption holes are formed on the surface of both the first and second label-absorbing plates.

[0004] When using the above-mentioned wire labeling device to apply tape to continuous packaging bags, the tape can be adsorbed onto the surfaces of the first and second label suction plates using vacuum suction holes. Then, a rotating mechanism is used to drive the first and second label suction plates to close together, so that the tape is folded in half and pasted onto the continuous packaging bag.

[0005] In the aforementioned wire labeling device, a gap is left between the first and second label-absorbing plates to allow them to rotate without interference. During use, the continuous packaging bag needs to be placed in this gap, and the adhesive tape needs to be pressed against it to ensure complete adhesion. However, because the continuous packaging bag is relatively soft, wrinkles can easily form during the pressing process, affecting production quality. If the pressing operation is not performed, the adhesive tape at the gap will bulge away from the continuous packaging bag. (See attached diagram.) Figure 5 Ultimately, the tape 27 at the aforementioned gaps cannot be completely adhered together, resulting in excess tape 28 on the continuous packaging bag 26. This can easily lead to incomplete cutting and separation of the continuous packaging bag 26 in subsequent processes, and also affect the aesthetics of the packaging bag. Summary of the Invention

[0006] The purpose of this invention is to provide a tape bonding device to solve the technical problem in the prior art that the spacing between the first and second label suction plates easily leads to excess tape on continuous packaging bags.

[0007] To achieve the above objectives, the technical solution of the tape bonding device provided by the present invention is as follows:

[0008] A tape bonding device includes a support frame and two adsorption components mounted on the support frame. Each adsorption component has an adsorption surface for adsorbing tape. The support frame is also provided with a driving mechanism for driving the two adsorption components to open and close relative to each other to fold the tape. The two adsorption components are connected together, and the intersection line of the two adsorption surfaces is the folding center line. A guide structure is provided between the support frame and the two adsorption components. The guide structure includes an arc-shaped track mounted on one of the support frame and the adsorption components and a sliding body mounted on the other. The sliding body and the arc-shaped track are anti-rotation and guide each other. The curvature center of the arc-shaped track is located at the folding center line.

[0009] As a further improvement, the arc track is an arc-shaped elongated hole or an arc-shaped elongated groove, and the sliding body is at least two guide members that are fixedly or rotatably installed on the adsorption component or support frame. The outer contour of the guide member is cylindrical, and the guide member is located in the corresponding arc-shaped elongated hole or arc-shaped elongated groove and slides or rolls with the inner wall of the arc-shaped elongated hole or arc-shaped elongated groove.

[0010] As a further improvement, the guide is a bearing, and an assembly column is fixedly installed on the adsorption component or support frame, with the inner ring of the bearing fitted onto the assembly column.

[0011] As a further improvement, the support frame includes at least one guide plate perpendicular to the folding center line. An arc-shaped elongated hole is provided on the guide plate, which forms an arc-shaped track. A sliding body disposed on the adsorption member is located inside the arc-shaped elongated hole and is anti-rotating and guidely engaged with the arc-shaped elongated hole.

[0012] As a further improvement, there are two guide plates that are parallel to each other, and a connecting body is fixedly connected between the two guide plates. The two guide plates are located on both sides of the adsorption component, and the sliding bodies on the two adsorption components are respectively engaged with the two arc-shaped elongated holes to prevent rotation and guide.

[0013] As a further improvement, the drive mechanism includes a moving part, two transmission arms hinged to the moving part, and a power device for driving the moving part to move. The ends of the two transmission arms away from the moving part are respectively hinged to two adsorption elements. The support frame is provided with a guide structure for linearly guiding the moving part.

[0014] As a further improvement, each adsorption element is provided with a protrusion and a concave part, and a sliding body is provided on the protrusion. When the adsorption surfaces on the two adsorption elements are coplanar, the protrusion on one adsorption element and the concave part on the other adsorption element are fitted together.

[0015] As a further improvement, the support frame or adsorption component is equipped with a pneumatic connector for connecting an air pump, and adsorption holes are opened on the adsorption surface. Each adsorption hole is connected to a vacuum logic safety valve, which is connected to the pneumatic connector.

[0016] As a further improvement, the adsorption component includes an adsorption plate and a mounting plate that are parallel to each other. A connecting plate connects the adsorption plate and the mounting plate. The side wall of the adsorption plate away from the mounting plate forms the adsorption surface. One end of the vacuum logic safety valve is fixed to the adsorption plate, and the other end is fixed to the mounting plate. A connecting channel for connecting each vacuum logic safety valve is opened in the mounting plate. A pneumatic connector is connected to the connecting channel.

[0017] As a further improvement, a limiting part is provided on the support frame, and the limiting part has a limiting groove for guiding and limiting the continuous packaging bags. The bottom of the limiting groove is aligned with the folding center line.

[0018] The beneficial effects are as follows: The tape bonding device provided by this invention is an improvement on the prior art. This tape bonding device connects two adsorption components for adsorbing and folding the tape, and a guide structure is provided between the adsorption components and the support frame. Since the curvature center of the arc track in the guide structure is located at the folding center line, both adsorption components can rotate around the folding center line at the connection point, and the tape can be effectively bonded at any position after folding. This avoids excess tape on the continuous packaging bag after bonding and prevents incomplete cutting and separation of the continuous packaging bag in subsequent processes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the tape bonding device in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of two adsorption elements in a fully deployed state in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram illustrating the transition of two adsorption elements from a fully extended state to a closed state in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of two adsorption elements in a closed state in one embodiment of the present invention;

[0023] Figure 5 A diagram showing the state of the tape after it has been applied using a wire labeling device in the background art.

[0024] Figure 6 This is a diagram showing the state of the tape after it has been applied using a tape bonding device in one embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Guide plate; 2. Connector; 3. Support column; 4. Adsorption component; 41. Adsorption plate; 42. Mounting plate; 43. Connecting plate; 44. Adsorption surface; 5. Folding center line; 6. Protrusion; 7. Recess; 8. Arc-shaped elongated hole; 9. Bearing; 10. Assembly column; 11. Cover plate; 12. Mounting bolt; 13. Transmission arm; 14. Connecting pin; 15. Cylinder; 16. Guide elongated hole; 17. Vacuum logic safety valve; 18. Adsorption hole; 19. Pneumatic connector; 20. Plug bolt; 21. Mounting seat; 22. Three-way valve; 23. Fixing plate; 24. Limiting part; 25. Limiting groove; 26. Continuous packaging bag; 27. Adhesive tape; 28. Excess adhesive tape. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments.

[0028] To address the technical problems in the prior art, the main concept of this invention is to connect two adsorption components together and utilize the guiding structure between the adsorption components and the support frame to enable both adsorption components to rotate around the folding center line at the connection point, thereby preventing excess tape from being ineffectively adhered when the tape is stuck on the continuous packaging bag.

[0029] Specific embodiments of the tape bonding device provided by the present invention:

[0030] A tape bonding device, see attached. Figure 1 It includes a support frame and two adsorption components 4 mounted on the support frame. The support frame is also equipped with a drive mechanism for driving the two adsorption components 4 to open and close relative to each other.

[0031] The support frame includes two parallel guide plates 1 and a connecting body 2 disposed between the two guide plates 1. The two end faces of the connecting body 2 are respectively attached to the two guide plates 1, and the connecting body 2 is fixedly connected to the guide plates 1 using bolts. In other embodiments, the connecting body 2 and the guide plates 1 can also be welded together. In addition, three support columns 3 are provided between the two guide plates 1 to reinforce them. The three support columns 3 are all located between the two adsorption components 4, and also limit the rotation of the adsorption components 4.

[0032] The adsorption component 4 is located between two guide plates 1. The adsorption component 4 includes parallel adsorption plates 41 and mounting plates 42, with a connecting plate 43 integrally connected between them. The side wall of the adsorption plate 41 away from the mounting plate 42 is the adsorption surface 44. One edge of the two adsorption surfaces 44 always connects, and the intersection line of the two adsorption surfaces 44 is the folding center line 5. Driven by the driving mechanism, both adsorption components 4 rotate about the folding center line 5, completing the closing and unfolding actions. The end walls of the two guide plates 1 in the thickness direction are perpendicular to the folding center line 5.

[0033] The connecting plate 43 is provided with a protrusion 6 that protrudes from the connecting plate 43, and the connecting plate 43 is also provided with a concave part 7. When the two adsorption members 4 are in the unfolded state, the two adsorption surfaces 44 are in the coplanar state. At this time, the protrusion 6 on one adsorption member 4 and the concave part 7 on the other adsorption member 4 are fitted together to prevent over-expansion.

[0034] To ensure the stability of the movement trajectory of the two adsorption components 4 during rotation, a guide structure is provided between the support frame and the two adsorption components 4. The guide structure includes an arc-shaped track on one of the support frame and the adsorption component 4 and a slider on the other. The slider and the arc-shaped track prevent rotation and provide guidance, and the curvature center of the arc-shaped track is located at the folding center line 5.

[0035] Specifically, the arc-shaped track is an arc-shaped elongated hole 8 opened on the guide plate 1. The arc-shaped elongated holes 8 on the two guide plates 1 have the same shape, size, and opening position to facilitate the batch processing of the guide plates 1. The sliding body consists of two guide members with cylindrical outer contours. Specifically, the guide members are bearings 9. Two mounting pillars 10 are fixedly installed on the side of the protrusion 6 facing the corresponding guide plate 1. The inner ring of the bearing 9 is fitted onto the corresponding mounting pillar 10, and the outer ring of the bearing 9 rolls with the inner wall of the arc-shaped elongated hole 8. An arc-shaped cover plate 11 is provided at the end of the mounting pillar 10 away from the protrusion 6. The cover plate 11 has two mounting holes corresponding to the positions of the mounting pillar 10. A threaded hole is provided at the end of the mounting pillar 10 away from the protrusion 6. A mounting bolt 12, which is threaded into the mounting hole, is threaded and connected to the threaded hole. The mounting bolt 12 can be used to fix the cover plate 11 to the two corresponding mounting pillars 10, which can prevent the bearing 9 from falling off and improve the aesthetics.

[0036] The driving mechanism includes a moving component, two transmission arms 13 hinged to the moving component, and a power unit for driving the moving component. The ends of the two transmission arms 13 away from the moving component are respectively hinged to two adsorption components 4. The support frame is provided with a guide structure for linearly guiding the moving component. Specifically, the guide structure is a guide elongated hole 16 opened on the guide plate 1. When the two adsorption components 4 are in the fully extended state, the extension direction of the guide elongated hole 16 is perpendicular to the adsorption surface 44, and the folding center line 5 is located in the extension direction of the guide elongated hole 16. The power unit is a cylinder 15 fixedly mounted on the connecting body 2. The moving component is a connecting pin 14. The middle part of the connecting pin 14 is hinged to the piston rod end of the cylinder 15. The two transmission arms 13 are respectively located on both sides of the piston rod of the cylinder 15. The two ends of the connecting pin 14 are respectively located in the two guide elongated holes 16 and are guided and engaged with the corresponding guide elongated holes 16.

[0037] Multiple vacuum logic safety valves 17 are provided between the adsorption plate 41 and the mounting plate 42, with both ends of each valve connected to the adsorption plate 41 and the mounting plate 42, respectively. Multiple adsorption holes 18 penetrating the adsorption plate 41 are provided on the adsorption surface 44, each corresponding to and connected to a vacuum logic safety valve 17. A connection channel is provided within the mounting plate 42, and each vacuum logic safety valve 17 is connected to this channel. A pneumatic connector 19 is provided on the side of the mounting plate 42 away from the adsorption plate 41, and this connector is connected to the connection channel. The connection channel is machined by drilling, and the opening of the hole is sealed with a plug bolt 20 after machining.

[0038] A mounting base 21 is fixedly installed at the end of cylinder 15 away from connecting body 2. A three-way valve 22 is fixed on the mounting base 21. Two ports of the three-way valve 22 are connected to two pneumatic connectors 19 via air pipes, and the other port of the three-way valve 22 is connected to an air pump. L-shaped fixing plates 23 are provided on both sides of connecting body 2. One side wall of the fixing plate 23 is connected to connecting body 2 by bolts, and the other side wall of the fixing plate 23 has fixing holes for fixing air pipes.

[0039] The guide plate 1 is provided with a limiting part 24, and the limiting part 24 has a limiting groove 25 for guiding and limiting the continuous packaging bags. The limiting groove 25 is aligned with the folding center line 5. In this embodiment, the opening of the limiting groove 25 is V-shaped to facilitate the continuous packaging bags entering the limiting groove 25. In other embodiments, the guide plate 1 may not have a limiting part 24, or a separate structure for guiding and limiting the continuous packaging bags may be provided, which will not be described in detail here.

[0040] Initially, the two adsorption surfaces 44 are coplanar, and the two adsorption elements 4 are in a fully deployed state, as shown in the attached figure. Figure 2As shown. The tape is cut to the required length, and then the non-adhesive side of the tape is attached to the adsorption surface 44. An air pump is used to create negative pressure on each adsorption hole 18, thus stably adsorbing the tape onto the adsorption surface 44. The tape-attaching device then moves, inserting one side of the continuous packaging bag 26 into the limiting groove 25, positioning that side of the continuous packaging bag 26 at the folding center line 5. Then, driven by the cylinder 15, the connecting pin 14 moves towards the folding center line 5. Through the transmission arm 13, the linear movement of the connecting pin 14 is converted into the rotation of the two adsorption elements 4. Both adsorption elements 4 rotate around the folding center line 5 to reach a closed state. The process of the two adsorption elements 4's operation is detailed in the appendix. Figure 3 At this point, the two adsorption surfaces 44 are in a relative position, thus adhering the tape to the continuous packaging bag, such as... Figure 4 As shown. The last two adsorption elements 4 rotate in the opposite direction to return to their initial state.

[0041] During the rotation of the adsorption element 4, the two bearings 9 move along the arc-shaped elongated hole 8. The diameters of the two bearings 9 are equal to the width of the arc-shaped elongated hole 8. Therefore, the sliding body formed by the two bearings 9 engages with the arc-shaped elongated hole 8 to prevent rotation, ensuring that the adsorption element 4 can only rotate about the folding center line 5. Compared to existing technologies, this tape bonding device does not require space between the two adsorption elements 4 for rotation, thus allowing the tape 27 at the folding center line 5 to be effectively bonded without excess tape. Figure 6 As shown, this can prevent incomplete shearing and separation of the continuous packaging bags 26 in subsequent processes.

[0042] If the tape is too small to completely cover all the adsorption holes 18, the vacuum logic safety valve 17 corresponding to the uncovered adsorption hole 18 will close, thereby preventing pressure leakage at that adsorption hole 18 and improving the flexibility of the tape bonding device. In other embodiments, the vacuum logic safety valve may not be provided. In this embodiment, a thin film can be pasted on the adsorption surface, and the film at the adsorption holes that can be covered by the tape is punched with holes, while the adsorption holes that cannot be covered by the tape are sealed by the film, thereby preventing pressure leakage.

[0043] In this embodiment, the mounting plate and the connection channel within it are provided to facilitate the installation of the vacuum logic safety valves, reduce the amount of piping, and improve the overall structural compactness. In other embodiments, the mounting plate may not be provided; in this embodiment, a rigid pipe connected to each vacuum logic safety valve is used as the connection channel.

[0044] In this embodiment, the protrusion and recess are provided to facilitate mutual limiting and engagement when the two adsorption components are fully extended, preventing over-extension. Furthermore, the rotation paths of the two adsorption components do not coincide along the folding center line. Therefore, if the slider is placed on the non-protrusion, its movement path also does not coincide along the folding center line, requiring a larger guide plate to accommodate the arc-shaped elongated hole. By providing the protrusion and placing the slider on it, the movement paths of the sliders on both adsorption components can coincide, reducing the size of the guide plate and improving the compactness of the tape bonding device. In other embodiments, the protrusion and recess may be omitted without affecting the normal use of the tape bonding device.

[0045] In different embodiments, the sliding body has different structures. For example, in one embodiment, the sliding body consists of two cylinders fixed to the corresponding adsorption element, with the cylinders slidingly engaging with the inner wall of the arc-shaped elongated hole. In this embodiment, the sliding body composed of two cylinders can also achieve a guiding and anti-rotation engagement with the arc-shaped elongated hole. In another embodiment, the sliding body can also be two rotating pillars, with mating holes on the adsorption element that rotatably engage with the rotating pillars. The two rotating pillars rollly engage with the inner wall of the corresponding arc-shaped elongated hole. In this embodiment, the sliding body composed of two rotating pillars can also achieve a guiding and anti-rotation engagement with the arc-shaped elongated hole. In yet another embodiment, the sliding body can also be an arc-shaped slider, with the two arc-shaped sidewalls of the slider slidingly engaging with the two arc-shaped inner walls of the arc-shaped elongated hole. In this embodiment, the slider can also achieve a guiding and anti-rotation engagement with the arc-shaped elongated hole.

[0046] In other embodiments, the arc-shaped track can also be an arc-shaped long groove, with the slider located within the arc-shaped long groove and engaging with it to prevent rotation and provide guidance. The specific structure of the slider can be the same as that in the above embodiments. Alternatively, the arc-shaped track can be an arc-shaped protrusion, with the slider being a guide block fixed to the adsorption component. The guide block has an arc-shaped groove that slides with the arc-shaped protrusion.

[0047] In other embodiments, the guide structure may take other forms, such as an arc-shaped track on the adsorption element and a slider on the guide plate, which will not be elaborated here.

[0048] In this embodiment, the guiding structure is a guide elongated hole opened on the guide plate. The structure is simple, easy to process and manufacture, and improves the structural compactness of the tape bonding device. In other embodiments, the guiding structure can also be a guide protrusion fixedly set on the inner side of the guide plate, and grooves that slide with the guide protrusion are respectively provided at both ends of the moving part.

[0049] In this embodiment, the drive mechanism uses a power device to drive the two adsorption elements to rotate simultaneously, which can effectively improve the synchronization of the rotation of the two adsorption elements. In other embodiments, the drive mechanism may only include two cylinders, the cylinder body of which is hinged to the connecting body, and the piston rod end of the cylinder is hinged to the two adsorption elements respectively.

[0050] In this embodiment, providing two guide plates facilitates the separate guidance of the two adsorption components, reducing mutual interference. Furthermore, the two guide plates and the two adsorption components are identical in shape and size, facilitating mass production. In other embodiments, only one guide plate may be provided. In this embodiment, the guide plate has two arc-shaped elongated holes with different radii of curvature, the centers of curvature of which remain at the folding center line. Cantilever arms of different lengths are provided on the two adsorption components, and a sliding body is mounted on the cantilever arms.

[0051] In addition to applying tape to continuous packaging bags, this tape-applying device can also affix labels to plate-shaped or sheet-shaped products.

[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tape bonding device, comprising a support frame and two adsorption members disposed on the support frame, each adsorption member having an adsorption surface for adsorbing tape, and the support frame further comprising a driving mechanism for driving the two adsorption members to open and close relative to each other to fold the tape, characterized in that, Two adsorption components are connected together, and the boundary line between the two adsorption surfaces is the folding center line. A guide structure is provided between the support frame and the two adsorption components. The guide structure includes an arc-shaped track on one of the support frame and the adsorption component and a sliding body on the other. The sliding body and the arc-shaped track are anti-rotation and guide each other. The curvature center of the arc-shaped track is located at the folding center line. Each adsorption component is provided with a protrusion and a concave part. The sliding body is provided on the protrusion. When the adsorption surfaces on the two adsorption components are coplanar, the protrusion on one adsorption component and the concave part on the other adsorption component are fitted together.

2. The tape bonding device according to claim 1, characterized in that, The arc track is an arc-shaped elongated hole or arc-shaped elongated groove. The sliding body is at least two guide members that are fixedly or rotatably installed on the adsorption component or support frame. The outer contour of the guide member is cylindrical. The guide member is located in the corresponding arc-shaped elongated hole or arc-shaped elongated groove and slides or rolls with the inner wall of the arc-shaped elongated hole or arc-shaped elongated groove.

3. The tape bonding device according to claim 2, characterized in that, The guide component is a bearing, and an assembly column is fixedly installed on the adsorption component or support frame, with the inner ring of the bearing fitted onto the assembly column.

4. The tape bonding device according to any one of claims 1-3, characterized in that, The support frame includes at least one guide plate perpendicular to the folding center line. An arc-shaped elongated hole is provided on the guide plate, which forms an arc-shaped track. A sliding body set on the adsorption component is located inside the arc-shaped elongated hole and is anti-rotating and guides the arc-shaped elongated hole.

5. The tape bonding device according to claim 4, characterized in that, There are two guide plates that are parallel to each other and are fixedly connected to each other. The two guide plates are located on both sides of the adsorption component. The sliding bodies on the two adsorption components are respectively engaged with the two arc-shaped elongated holes to prevent rotation and guide the movement.

6. The tape bonding device according to any one of claims 1-3, characterized in that, The drive mechanism includes a moving part, two transmission arms hinged to the moving part, and a power device for driving the moving part to move. The ends of the two transmission arms away from the moving part are respectively hinged to two adsorption elements. The support frame is provided with a guide structure for linearly guiding the moving part.

7. The tape bonding device according to claim 3, characterized in that, Two assembly columns are fixedly installed on the same protrusion. An arc-shaped cover plate is provided at the end of the assembly column away from the protrusion, and the cover plate is fixedly connected to the two assembly columns.

8. The tape bonding device according to any one of claims 1-3, characterized in that, The support frame or adsorption component is equipped with a pneumatic connector for connecting an air pump. Adsorption holes are opened on the adsorption surface, and each adsorption hole is connected to a vacuum logic safety valve. The vacuum logic safety valve is connected to the pneumatic connector.

9. The tape bonding device according to claim 8, characterized in that, The adsorption component includes an adsorption plate and a mounting plate that are parallel to each other. A connecting plate connects the adsorption plate and the mounting plate. The side wall of the adsorption plate away from the mounting plate forms the adsorption surface. One end of the vacuum logic safety valve is fixed to the adsorption plate and the other end is fixed to the mounting plate. A connecting channel for connecting each vacuum logic safety valve is opened in the mounting plate. A pneumatic connector is connected to the connecting channel.

10. The tape bonding device according to any one of claims 1-3, characterized in that, The support frame is provided with a limiting part, which has a limiting groove for guiding and limiting the continuous packaging bags. The bottom of the limiting groove is aligned with the folding center line.

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