A surrounding and inviting covering mechanism and a device for combining fireworks with a cover

Abstract

The utility model relates to the field of combined fireworks product's packing, especially a kind of surrounding invitation package covering mechanism and combined fireworks's skin device.The surrounding invitation package covering mechanism disclosed by the utility model includes package covering station;Package covering station includes fourth slide, package covering gripper, first cylinder, mounting bracket, and package covering gripper is set symmetrically with fourth slide as middle axis, and combined fireworks on fourth slide is in recumbent posture;The end of package covering gripper close to fourth slide is first end, and the end of package covering gripper away from fourth slide is second end, first end is hinged with mounting bracket, and second end is hinged with first cylinder, so that second end moves in circular arc track around first end.The surrounding invitation package covering mechanism and combined fireworks's skin device of the utility model can directly surround and cover the combined fireworks in recumbent posture, suitable for different size and shape combined fireworks, reduce production procedure, and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of packaging for combination fireworks products, and in particular to a wrapping mechanism and a backing device for combination fireworks. Background Technology

[0002] Combination fireworks are composed of multiple single-tube fireworks connected together by a fuse. When ignited, they can launch a variety of colors, patterns, and effects sequentially or simultaneously. After the combination fireworks are formed, they need to be packaged, a process commonly known in the industry as "coating." This involves sealing the surface of the combination fireworks with moisture-proof materials such as plastic or paper. This packaging material is generally referred to as "labeling paper" in the industry. Depending on its placement on the combination fireworks, labeling paper can be divided into three types: top labeling, bottom labeling, and perimeter labeling.

[0003] When packaging combination fireworks, the top and bottom banners are usually covered first, followed by the surrounding banners. In existing technology, after the top and bottom banners are covered, combination fireworks in a horizontal position need to be adjusted to an upright position before the surrounding banners are covered. This process is complex, inefficient, and restricts the shape of the combination fireworks. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a surrounding and covering mechanism and a backing device for combination fireworks. It can directly surround and cover combination fireworks in a lying position, and is applicable to combination fireworks of different sizes and shapes, reducing production steps and improving production efficiency.

[0005] Therefore, the primary objective of this utility model is to provide a mechanism for enclosing and covering a billboard.

[0006] The second objective of this invention is to provide a backing device for combined fireworks.

[0007] To achieve the first objective of this utility model, the technical solution of this utility model provides a surrounding and covering mechanism, including a covering station; the covering station includes a fourth slide, a covering gripper, a first cylinder, and a mounting bracket. The covering gripper is symmetrically arranged with the fourth slide as the central axis, and the combined fireworks located on the fourth slide are in a lying position; the end of the covering gripper near the fourth slide is the first end, and the end of the covering gripper away from the fourth slide is the second end. The first end is hinged to the mounting bracket, and the second end is hinged to the first cylinder so that the second end can move around the first end in an arc trajectory.

[0008] In one technical solution of this utility model, the coating station also includes a pressure plate and a second cylinder, the second cylinder being connected to and driving the pressure plate to reciprocate up and down.

[0009] In one technical solution of this utility model, the number of first cylinders is two.

[0010] In one technical solution of this utility model, the enclosing and covering mechanism includes a feeding station; the feeding station includes a first slide and a first feeding mechanism, the first feeding mechanism being used to push the combined fireworks along the first slide.

[0011] In one technical solution of this utility model, the enclosure covering mechanism includes a first adhesive application station; the first adhesive application station includes a second slide and an adhesive application device, the adhesive application device is located below the second slide, and the bottom of the second slide is hollowed out.

[0012] In one technical solution of this utility model, the enclosure mechanism includes an upper enclosure station; the upper enclosure station includes a third slide, an upper enclosure mechanism, and a third cylinder. The bottom of the third slide is hollowed out, the upper enclosure mechanism is located below the third slide, and the third cylinder is connected to and drives the upper enclosure mechanism to move up and down reciprocally.

[0013] In one technical solution of this utility model, the upper enclosure station further includes: a cylinder suction cup, which is located above the third slide and symmetrically arranged with the third slide as the central axis, for adsorbing the two ends of the enclosure and driving the two ends of the enclosure to move up and down.

[0014] In one technical solution of this utility model, the upper enclosure feeding station further includes a guide part, which is located below the third slide. The guide part is connected to the upper enclosure feeding mechanism according to the material feeding direction. The guide part is in the shape of a slope, with the bottom of the slope at one end of the guide part near the upper enclosure feeding mechanism and the other end of the guide part being flush with the fourth slide.

[0015] In one technical solution of this utility model, the coating station also includes a tape guide roller and a fourth cylinder. The tape guide roller is located above the fourth slide rail, and the fourth cylinder is connected to and drives the tape guide roller to reciprocate in a direction parallel to the fourth slide rail.

[0016] In one technical solution of this utility model, the enclosing and covering mechanism includes a material discharge station; the material discharge station includes: a fifth slide, a tape cutter, a fifth cylinder, a second feeding mechanism, and a sixth slide. The tape cutter is located above the fifth slide, and the fifth cylinder is connected to and drives the tape cutter to move up and down reciprocally to cut the tape. The fifth slide and the sixth slide are connected and vertically arranged. The second feeding mechanism is located at one end of the sixth slide near the fifth slide and is used to push the combined fireworks along the seventh slide.

[0017] To achieve the second objective of this utility model, the technical solution of this utility model provides a backing device for combined fireworks, including a first glue application mechanism, a top and bottom covering mechanism, and a surrounding covering mechanism as described in any of the above technical solutions, connected in sequence.

[0018] The technical solution provided by this utility model can achieve at least one of the following effects: (1) Reduce costs and increase efficiency. After eliminating the posture adjustment step, there is no need to configure an additional flipping device or arrange a special person to be responsible for the adjustment, thereby reducing costs and improving efficiency. (2) Improve the yield rate. The lying position can avoid problems such as misalignment and wrinkles of the paper due to unstable upright position, and the bonding accuracy is higher. (3) Applicable to combination fireworks of different shapes; (4) Simplify the production line layout and optimize the mechanical motion path and timing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0020] Figure 1 This is one of the schematic diagrams of the enclosing and covering mechanism of this utility model; Figure 2 This is the second schematic diagram of the enclosing and covering mechanism of this utility model; Figure 3 This is the third schematic diagram of the enclosing and covering mechanism of this utility model; Figure 4 This is the fourth schematic diagram of the enclosing and covering mechanism of this utility model; Figure 5 This is the fifth schematic diagram of the enclosing and covering mechanism of this utility model; Figure 6 This is a schematic diagram of the structure of the leather-coating device of this utility model.

[0021] Explanation of reference numerals in the attached figures: 10. Skin-coating device; 100. Enclosure and covering mechanism; 110. Feeding station; 111. First chute; 112. First feeding mechanism; 113. First guard plate; 120. First adhesive application station; 121. Second chute; 122. Adhesive application device; 130. Upper enclosure station; 131. Third chute; 132. Upper enclosure mechanism; 133. Third cylinder; 134. Cylinder suction cup; 135. Guide section; 140. Covering station; 141. Fourth chute; 142. Covering gripper; 142a. First end; 42b. Second end; 1421. First arm; 1422. Second arm; 1423. Gripper plate; 143. First cylinder; 144. Plate; 145. Second cylinder; 146. Mounting bracket; 147. Hinge shaft; 148. Belt guide roller; 149. Fourth cylinder; 150. Discharge station; 151. Fifth slide rail; 152. Belt cutter; 153. Fifth cylinder; 154. Second feeding mechanism; 155. Sixth slide rail; 200. First adhesive application mechanism; 300. Top and bottom covering mechanism. Detailed Implementation

[0022] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The following reference Figures 1 to 6 The technical solutions of some embodiments of this utility model are described below.

[0027] An embodiment of this utility model provides a surrounding and covering mechanism 100, referring to... Figure 1 As shown, the device includes a coating station 140; the coating station 140 includes a fourth slide 141, a coating gripper 142, a first cylinder 143, and a mounting bracket 146. The coating gripper 142 is symmetrically arranged with the fourth slide 141 as the central axis, and the combined fireworks located on the fourth slide 141 are in a lying position; the end of the coating gripper 142 near the fourth slide 141 is the first end 142a, and the end of the coating gripper 142 away from the fourth slide 141 is the second end 142b. The first end 142a is hinged to the mounting bracket 146, and the second end 142b is hinged to the first cylinder 143 so that the second end 142b can move around the first end 142a in an arc trajectory.

[0028] For example, the cross-section of the combination fireworks can be rectangular or hexagonal. Understandably, the covering handle 142 can be adjusted according to the shape and size of the combination fireworks.

[0029] For example, refer to Figure 1 As shown, the covering gripper 142 includes a first arm 1421 and a second arm 1422. One end of the first arm 1421 is connected to the mounting bracket 146, and the other end of the first arm 1421 is hinged to the hinge shaft 147. One end of the second arm 1422 is fixedly connected to the first arm 1421, and the other end of the first arm 1421 is provided with a gripper pressure plate 1423. Understandably, the length and shape of the first arm 1421 and the second arm 1422 can be adjusted according to the shape and size of the combined fireworks. The components of the covering gripper 142 can more flexibly meet the packaging needs of combined fireworks of different specifications, balance and optimize the lever arm, dynamically adjust the arm length according to the size of the fireworks, and maintain the optimal ratio of cylinder driving force and covering pressure.

[0030] The covering gripper 142 is symmetrically arranged with the fourth slide rail 141 as the central axis, forming a mirror synchronous motion structure. This design ensures that the covering force is applied evenly on both sides, avoiding product displacement or deformation caused by unilateral force application. The first end 142a is fixed to the mounting bracket 146 to provide a stable fulcrum, and the second end 142b is driven by the first cylinder 143 to achieve circumferential motion. This structure can flexibly adapt to the outline of combined fireworks of different diameters and shapes, and the covering pressure can be adjusted by precisely controlling the cylinder stroke, taking into account both flexible and standardized production needs. The fourth slide rail 141 serves as a reference guide rail, which not only undertakes the conveying function, but also provides a spatial reference system for the movement of the covering gripper 142, ensuring the consistency of the position of the combined fireworks during the covering process. In conjunction with the production line rhythm, it can achieve seamless connection with other processes.

[0031] In some embodiments of this application, reference is made to Figure 1 As shown, the coating station 140 also includes a pressure plate 144 and a second cylinder 145. The second cylinder 145 is connected to and drives the pressure plate 144 to move up and down reciprocally.

[0032] Understandably, when covering the billboard, one side of the billboard paper should be attached to the other side to form a complete coverage of the combined fireworks billboard. Therefore, if the fourth slide 141 is taken as the central axis, the billboard paper on it should have a length difference on both sides.

[0033] Reference Figure 1 As shown, there are two first cylinders 143.

[0034] Two first cylinders 143 are symmetrically arranged with the fourth slide 141 as the central axis; the two first cylinders 143 are respectively hinged to the second end 142b through the hinge shaft 147.

[0035] For example, refer to Figure 1 As shown, the mounting bracket 146 has a through hole for the first cylinder 143 to connect to the second end 142b via the through hole. When the first cylinder 143 drives the second end 142b to make a circular motion around the first end 142a, the first cylinder 143 has a certain swing stroke in the radial direction. By setting the through hole on the mounting bracket 146, interference between the components is avoided, and the stability of the structure is ensured.

[0036] In some embodiments of this application, reference is made to Figure 2-4 As shown, the encircling and covering mechanism 100 includes a feeding station 110; the feeding station 110 includes a first slide 111 and a first feeding mechanism 112, the first feeding mechanism 112 being used to push the combined fireworks along the first slide 111.

[0037] For example, refer to Figure 4As shown, the shape of the first slide 111 can be adapted to the shape of the combined fireworks, and adjusted to a semi-open shape. This does not affect the feeding of the combined fireworks, and can stably support the combined fireworks.

[0038] For example, refer to Figure 3 As shown, the loading station 110 also includes a first guard plate 113, which is located on the side away from the first slide rail 111. The first guard plate 113 and the first slide rail 111 form an open frame. The opening formed by the first guard plate 113 and the first slide rail 111 can be adjusted according to the shape of the combined fireworks. This reduces the weight of the first slide rail 111 and lowers the load-bearing requirements on the frame.

[0039] The first slide 111 acts as a physical guide rail, allowing the combined fireworks to enter the next process in a fixed direction and posture, avoiding tilting or misalignment caused by manual material feeding deviations.

[0040] In some embodiments of this application, reference is made to Figure 2-3 As shown, the enclosure covering mechanism 100 includes a first adhesive application station 120; the first adhesive application station 120 includes a second slide 121 and an adhesive application device 122, the adhesive application device 122 is located below the second slide 121, and the bottom of the second slide 121 is hollowed out.

[0041] For example, refer to Figure 4 As shown, the second slide 121 has a tapered opening design, which can automatically correct deviation.

[0042] As the combined fireworks continue to move along the second slide 121, the gluing device 122 can continuously apply glue to its bottom through the hollowed-out parts in real time, without stopping the machine and waiting, significantly shortening the processing cycle of a single piece. The second slide 121, as a carrier, only contacts the bottom of the combined fireworks, and the gluing device 122 is placed independently below, avoiding glue splashing and contaminating the contact surface between the second slide 121 and the combined fireworks, ensuring smooth conveying. The second slide 121 accurately positions the gluing area, ensuring that the combined fireworks pass through the first gluing station 120 in a uniform posture, further ensuring that the bonding strength between the fence and the combined fireworks meets the standards. The combination of the gluing device 122 placed below and the hollowed-out second slide 121 makes full use of three-dimensional space and reduces the equipment footprint.

[0043] In some embodiments of this application, reference is made to Figure 2-4 As shown, the enclosure covering mechanism 100 includes an upper enclosure station 130; the upper enclosure station 130 includes a third slide 131, an upper enclosure mechanism 132, and a third cylinder 133. The bottom of the third slide 131 is hollowed out, the upper enclosure mechanism 132 is located below the third slide 131, and the third cylinder 133 is connected to and drives the upper enclosure mechanism 132 to move up and down reciprocally.

[0044] The third cylinder 133 drives the upper billboard mechanism 132 to lift the billboard paper from bottom to top. The billboard paper contacts the combined fireworks at the bottom of the third slide 131. The bottom of the combined fireworks has adhesive to achieve the adhesion between the bottom of the combined fireworks and the billboard paper.

[0045] In some embodiments of this application, reference is made to Figure 1 As shown, the upper enclosure work station 130 also includes a cylinder suction cup 134, which is located above the third slide rail 131 and symmetrically arranged with the third slide rail 131 as the central axis. It is used to adsorb the two ends of the enclosure and drive the two ends of the enclosure to move up and down.

[0046] When the bottom of the combined fireworks is attached to the billboard paper, the cylinder suction cup 134 drives the two ends of the billboard paper to move up and down to prevent excess billboard paper from sticking due to external factors such as electrostatic adsorption. The suction cups are symmetrically arranged with the third slide 131 as the central axis, applying equal and opposite pulling forces to both ends of the billboard paper to form a stable planar tension field, so that the billboard paper is always in a taut state and completely eliminates the wavy wrinkles caused by slack.

[0047] In some embodiments of this application, reference is made to Figure 2-3 As shown, the upper loading station 130 also includes a guide section 135, which is located below the third slide rail 131. The guide section 135 is connected to the upper loading mechanism 132 according to the material feeding direction. The guide section 135 is sloping, with the bottom of the slope at one end of the guide section 135 near the upper loading mechanism 132, and the other end of the guide section 135 is flush with the fourth slide rail 141.

[0048] For example, the end of the guide section 135 near the upper sill 132 is lower than the upper sill 132.

[0049] For example, the end of the guide section 135 near the upper sill 132 is flush with the upper sill 132.

[0050] For example, the radial length of the guide section 135 is the same as that of the upper circumferential mechanism 132.

[0051] The guide section 135 effectively prevents the bottom of the combined fireworks from falling off the siding paper. The sloping design decomposes the overall weight of the combined fireworks and the siding paper into two components along the sloping surface, promoting continuous feeding of the siding paper and achieving a smooth transition, avoiding misalignment caused by instantaneous impact. The other end of the guide section 135 is flush with the fourth slide 141, eliminating the height difference gap and further achieving a smooth transition of the siding paper covering.

[0052] In some embodiments of this application, reference is made to Figure 2-3As shown, the coating station 140 also includes a tape guide roller 148 and a fourth cylinder 149. The tape guide roller 148 is located above the fourth slide rail 141, and the fourth cylinder 149 is connected to and drives the tape guide roller 148 to reciprocate in a direction parallel to the fourth slide rail 141.

[0053] The fourth cylinder 149 drives the belt guide roller 148 to reciprocate along the axis of the fourth slide rail 141, realizing a continuous operation mode for shaping, feeding and gluing the perimeter of the enclosure.

[0054] In some embodiments of this application, reference is made to Figure 2-3 As shown, the enclosing and covering mechanism 100 includes a discharge station 150; the discharge station 150 includes: a fifth slide 151, a tape cutter 152, a fifth cylinder 153, a second feeding mechanism 154, and a sixth slide 155. The tape cutter 152 is located above the fifth slide 151. The fifth cylinder 153 is connected to and drives the tape cutter 152 to move up and down reciprocally to cut the tape. The fifth slide 151 is connected to and vertically arranged with the sixth slide 155. The second feeding mechanism 154 is located at one end of the sixth slide 155 near the fifth slide 151 and is used to push the combined fireworks to slide along the sixth slide 155.

[0055] An embodiment of this utility model provides a protective covering device 10 for combined fireworks, see reference. Figure 5-6 As shown, it includes a first adhesive application mechanism 200, a top and bottom covering mechanism 300, and a surrounding covering mechanism 100 as described in any of the above embodiments, connected in sequence.

[0056] The combined fireworks sequentially pass through the first glue application mechanism 200, the top and bottom banner covering mechanism 300, and the surrounding banner covering mechanism 100 to obtain the finished combined fireworks. The glue application head of the first glue application mechanism 200 rotates around the glue application area of ​​the lying combined fireworks to complete the glue application work. The covering frame of the top and bottom banner covering mechanism 300 moves towards the bottom or top of the lying combined fireworks to simultaneously cover the top and bottom banners. The surrounding banner covering mechanism 100 surrounds and covers the lying combined fireworks to obtain the finished combined fireworks.

[0057] This embodiment includes the encirclement and covering mechanism 100 of any of the above embodiments, and therefore has all the beneficial effects of the encirclement and covering mechanism 100 of any embodiment of the present utility model, which will not be repeated here.

[0058] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mechanism for enclosing and covering a sign, characterized in that, The encirclement and covering mechanism (100) includes a covering station (140). The coating station (140) includes a fourth slide (141), a coating gripper (142), a first cylinder (143), and a mounting bracket (146). The coating gripper (142) is symmetrically arranged with the fourth slide (141) as the central axis, and the combined fireworks located on the fourth slide (141) are in a lying position. The end of the covering gripper (142) near the fourth slide rail (141) is the first end (142a), and the end of the covering gripper (142) away from the fourth slide rail (141) is the second end (142b). The first end (142a) is hinged to the mounting bracket (146), and the second end (142b) is hinged to the first cylinder (143) so that the second end (142b) can move in an arc trajectory around the first end (142a).

2. The enclosure and covering mechanism according to claim 1, characterized in that, The coating station (140) also includes a pressure plate (144) and a second cylinder (145), the second cylinder (145) being connected to and driving the pressure plate (144) to reciprocate up and down.

3. The enclosure and covering mechanism according to claim 1, characterized in that, The number of the first cylinder (143) is two.

4. The enclosure and covering mechanism according to claim 1, characterized in that, The enclosure and covering mechanism (100) includes a material loading station (110). The loading station (110) includes a first slide (111) and a first feeding mechanism (112). The first feeding mechanism (112) is used to push the combined fireworks along the first slide (111).

5. The enclosure and covering mechanism according to claim 1, characterized in that, The enclosure and covering mechanism (100) includes a first adhesive application station (120); The first adhesive application station (120) includes a second slide (121) and an adhesive application device (122). The adhesive application device (122) is located below the second slide (121), and the bottom of the second slide (121) is hollowed out.

6. The enclosure and covering mechanism according to claim 1, characterized in that, The encirclement and covering mechanism (100) includes an upper encirclement and covering workstation (130). The upper circumference retrieval station (130) includes a third slide (131), an upper circumference retrieval mechanism (132), and a third cylinder (133). The bottom of the third slide (131) is hollowed out. The upper circumference retrieval mechanism (132) is located below the third slide (131). The third cylinder (133) is connected to and drives the upper circumference retrieval mechanism (132) to move up and down reciprocally.

7. The enclosure and covering mechanism according to claim 6, characterized in that, The upper recruitment station (130) also includes: The cylinder suction cup (134) is located above the third slide (131) and is symmetrically arranged with the third slide (131) as the central axis. It is used to adsorb the two ends of the banner and drive the two ends of the banner to move up and down.

8. The enclosure and covering mechanism according to claim 6, characterized in that, The upper loading station (130) further includes a guide part (135), which is located below the third slide (131). The guide part (135) is connected to the upper loading mechanism (132) according to the material feeding direction. The guide part (135) is sloping. The end of the guide part (135) near the upper loading mechanism (132) is the bottom of the slope, and the other end of the guide part (135) is flush with the fourth slide (141).

9. The enclosure and covering mechanism according to claim 1, characterized in that, The coating station (140) also includes a tape guide roller (148) and a fourth cylinder (149). The tape guide roller (148) is located above the fourth slide rail (141), and the fourth cylinder (149) is connected to and drives the tape guide roller (148) to reciprocate in a direction parallel to the fourth slide rail (141).

10. A protective covering device for combined fireworks, characterized in that, The backing device (10) includes a first glue application mechanism (200), a top and bottom covering mechanism (300), and a surrounding covering mechanism (100) connected in sequence as described in any one of claims 1-9.

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