Forming mechanism of special-shaped barrel row

Abstract

The utility model discloses a forming mechanism of a special-shaped barrel row, which comprises a plurality of sliding seats arranged on a sliding guide rail, each sliding seat is connected with a variable-pitch mechanism, the variable-pitch mechanism drives each sliding seat to move along the sliding guide rail, and each sliding seat is provided with a barrel positioning piece; a telescopic cylinder row supporting plate is arranged below the cylinder positioning piece, and the bearing platform is located below the cylinder row supporting plate; the vertical cylinder row is fed between the cylinder body positioning pieces and the cylinder row supporting plate, the vertical cylinder row is arranged on the cylinder row supporting plate, and all the cylinder body positioning pieces abut against all the firework cylinders respectively; and the variable-pitch mechanism drives the firework cylinders to swing through the sliding seat and the cylinder body positioning piece to obtain the special-shaped cylinder row. After the special-shaped cylinder rows are obtained, the cylinder row supporting plate retracts, the special-shaped cylinder rows fall on the bearing platform, and the multiple special-shaped cylinder rows are stacked, glued and combined into a block-shaped whole on the bearing platform which ascends and descends step by step. Therefore, the stacking of the special-shaped tube rows can be completed at the original forming station. Equipment is effectively simplified, and the occupied area of the equipment is reduced.

Description

Technical Field

[0001] The utility model relates to a forming device for a special-shaped cylinder row of a special-shaped combined firework. Background Art

[0002] In the prior art, the Chinese patent document with the publication number CN 116907283A discloses a forming device for a special-shaped cylinder row of a special-shaped combined firework. The forming mechanism of the device includes a transmission plate and a plurality of forming components arranged in parallel: a plurality of guide chutes are provided on the transmission plate, and each guide chute corresponds to the arrangement structure of each firework cylinder in the special-shaped cylinder row; each forming component includes a slider movably sleeved on a guide post, and a connecting piece at the bottom end of the slider is movably sleeved in one of the guide chutes. A cylinder positioning piece (such as an arc-shaped groove body or a needle body hinged on the slider) is provided on the slider; the cylinder positioning piece is arranged corresponding to the upper end of the upright cylinder row; when the forming moving platform rises, it drives the forming mechanism to rise, and each of the cylinder positioning pieces rising therewith respectively positions the upper ends of the respective firework cylinders in the upright cylinder row; each guide chute on the transmission plate drives each slider to slide along the guide post through the connecting piece, and each slider drives the upper end of the firework cylinder to swing through the cylinder positioning piece to obtain a special-shaped cylinder row.

[0003] After obtaining the special-shaped cylinder row, it is necessary to stack and glue multiple cylinder rows into a block-shaped whole (i.e., group basins). The disadvantages of the prior art are as follows: after obtaining the special-shaped cylinder row, the stacking and grouping of the special-shaped cylinder row cannot be carried out at the original forming station. Instead, multiple stations are arranged horizontally in parallel, and the formed special-shaped cylinder rows move horizontally between each station in turn, and then enter a receiving platform with step-by-step lifting to be stacked and glued into a block-shaped whole; at the same time, since the glue has not yet cured, the special-shaped cylinder row needs to be clamped and positioned during horizontal movement; resulting in a complex device and a large floor area. The firework grouping device must be installed in a firework drug-related workshop, and the cost of such drug-related workshops is expensive and the maintenance cost is high. It can be said that every inch of land is precious, and the large floor area of the device is not conducive to popularization and use. Summary of the Utility Model

[0004] In order to solve the above drawbacks, the technical problem to be solved by the present utility model is to provide a forming mechanism for a special-shaped cylinder row, which is convenient for stacking special-shaped cylinder rows at the forming station. To solve the above technical problem, the technical solution adopted by the present utility model is a forming mechanism for a special-shaped cylinder row, including a cylinder positioning member and a gradually ascending and descending receiving platform. It is characterized in that it further includes a plurality of sliding seats installed on a sliding guide rail, each sliding seat is connected to a variable pitch mechanism, the variable pitch mechanism drives each sliding seat to move along the sliding guide rail, and each sliding seat is provided with the cylinder positioning member; a telescopic cylinder row support plate is arranged below the cylinder positioning member, and the receiving platform is located below the cylinder row support plate; a vertical cylinder row is fed between the cylinder positioning member and the cylinder row support plate, the vertical cylinder row is placed on the cylinder row support plate, and each cylinder positioning member respectively abuts against each fireworks cylinder; the variable pitch mechanism drives the fireworks cylinders to swing through the sliding seat and the cylinder positioning member to obtain a special-shaped cylinder row.

[0005] The beneficial effect of the present utility model is that after obtaining the special-shaped cylinder row, the cylinder row support plate retracts, and the special-shaped cylinder row falls on the receiving platform, and multiple special-shaped cylinder rows are stacked, glued and combined into a block on the gradually ascending and descending receiving platform. Therefore, the stacking of the special-shaped cylinder row can be completed at the original forming station. The equipment is effectively simplified and the floor area of the equipment is reduced.

[0006] In one embodiment, the variable pitch mechanism includes a transmission plate provided with a plurality of guide chutes, and each guide chute is distributed corresponding to the arrangement structure of each fireworks cylinder of the special-shaped cylinder row; a cam follower is arranged in each guide chute; each sliding seat is respectively hinged to the cam follower; a transmission plate driving member drives the transmission plate to perform a linear reciprocating motion, and the transmission plate drives the sliding seat to move along the sliding guide rail through the guide chute and the cam follower.

[0007] In one embodiment, the variable pitch mechanism includes a rotating shaft, and a plurality of spiral guide grooves are distributed on the outer peripheral surface of the rotating shaft, and a cam follower is arranged in each guide groove; each sliding seat is respectively hinged to the cam follower; a rotating shaft driving member drives the rotating shaft to rotate reciprocally, and the rotating shaft drives the sliding seat to move along the sliding guide rail through the guide groove and the cam follower.

[0008] In one embodiment, the structure of the variable pitch mechanism is that adjacent two sliding seats are movably connected through a limit guide rail, and a sliding driving member drives each sliding seat to move reciprocally along the sliding guide rail so that each sliding seat approaches or separates, and the limit guide rail limits the separation distance between adjacent two sliding seats, and the length of the separation distance is correspondingly set with the corresponding cylinder spacing of the special-shaped cylinder row.

[0009] In one embodiment, the sliding guide rail is mounted on the lifting base. When the upright cylinder row is fed into the cylinder positioning member between the cylinder row support plate, the lifting base is in the rising state, and the variable pitch mechanism, the sliding guide rail, the sliding seat, and the cylinder positioning member rise accordingly; after the upright cylinder row is fed in place, the lifting base descends, and each cylinder positioning member descends to respectively abut against the front ends of each fireworks cylinder. The working reliability is improved.

[0010] In one embodiment, a limiting member for abutting against the front end of the special-shaped cylinder row is provided above the cylinder row support plate.

[0011] After the special-shaped cylinder row is formed, it needs to descend to be stacked and assembled into a block. In order to ensure that each fireworks cylinder does not become disordered during its descent. In one embodiment, a first lifting guide member corresponding to the front end of the special-shaped cylinder row is provided below the cylinder row support plate. When the special-shaped cylinder row descends after being formed, the front ends of each fireworks cylinder enter the first lifting guide member.

[0012] In one embodiment, a second lifting guide member is provided corresponding to the rear end of the upright cylinder row or the special-shaped cylinder row, and the second lifting guide member clamps and positions both sides of the rear end of the cylinder row. It plays a role in positioning the rear end of the cylinder row when the special-shaped cylinder row is being formed and when it descends after being formed.

[0013] Preferably, the cylinder positioning member uses an arc-shaped groove or a clamping needle group hinged on the sliding seat. Further, the clamping needle group is composed of a pointed needle and a round needle. The pointed needle is inserted between two adjacent fireworks cylinders, and the round needle abuts against the other side of the fireworks cylinder.

[0014] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages.

[0015] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0016] It should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0017] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0018] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0020] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. Description of the Drawings

[0021] Figure 1 Schematic diagram of the overall structure of Example 1;

[0022] Figure 2 Schematic diagram of the front side of the partial structure of Example 1;

[0023] Figure 3 Schematic diagram of the rear side of the partial structure of Example 1;

[0024] Figure 4 Schematic diagram of the partial structure of Example 1 (removing the drive plate);

[0025] Figure 5 Schematic diagram of the combined structure of the cam follower, sliding seat and cylinder positioning member of Example 1;

[0026] Figure 6 Schematic diagram of the structure of the cylinder positioning member of Example 1;

[0027] Figure 7 Schematic diagram of the structure of the upright cylinder row fed between the cylinder positioning member and the cylinder row support plate of Example 1;

[0028] Figure 8 Schematic diagram of the stacked structure of the special-shaped cylinder rows of Example 1 (state where the cylinder row support plate is not fully retracted);

[0029] Figure 9 Schematic diagram of the stacked structure of the special-shaped cylinder rows of Example 1 (state where the cylinder row support plate is fully retracted);

[0030] Figure 10 Schematic diagram of the stacked structure of the special-shaped cylinder rows of Example 1 (removing the second lifting guide);

[0031] Figure 11 Schematic diagram of the stacked structure of the special-shaped cylinder rows of Example 1 (continuing to remove components such as the variable pitch mechanism on the basis of Figure 10 to show the limiting member abutting against the front end of the special-shaped cylinder row);

[0032] Figure 12 Schematic diagram of the block-type integral discharging mechanism of Example 1.

[0033] Figure 13 Schematic structural diagram of the pitch-changing mechanism of Embodiment 2;

[0034] Figure 14 Schematic structural diagram of the rotating shaft of Embodiment 2.

[0035] Figure 15 Schematic structural diagram of the pitch-changing mechanism of Embodiment 3.

[0036] Figure 16 Schematic structural diagram of the cylinder positioning member of Embodiment 4.

[0037] Figure 17 Schematic structural diagram of the cylinder positioning member of Embodiment 5. Detailed implementation manners

[0038] Embodiment 1: Refer to the appendix Figure 1-12 , showing a specific structure of the present utility model. The forming mechanism of the special-shaped cylinder row includes a receiving platform 2. In the example, a platform motor 201 drives the receiving platform 2 to be lifted step by step along a platform guide rail 203 through a screw-nut assembly 202. Thus, the upright cylinder rows 10 fed from the front side are received one by one for stacking, and are processed into fan-shaped special-shaped cylinder rows 20 one by one, and then a plurality of fan-shaped cylinder rows 20 are stacked, glued and combined into a block-shaped whole.

[0039] The forming mechanism of the special-shaped cylinder row further includes a plurality of sliding seats 4 installed on a sliding guide rail 3. Each sliding seat 4 is connected to a pitch-changing mechanism, and the pitch-changing mechanism drives each sliding seat 4 to move along the sliding guide rail 3. A cylinder positioning member 1 is hinged on each sliding seat 4. In the example, the sliding guide rail 3 is installed on a lifting base 6 and is lifted by a base cylinder 601.

[0040] In the example, the sliding guide rail 3 includes an upper guide rail group 3-1 and a lower guide rail group (not shown in the figure). The upper guide rail group 3-1 is fixed on the upper surface of the lifting base 6, and the lower guide rail group is fixed on the lower surface of the lifting base 6. The sliding seats 4 are correspondingly divided into an upper sliding seat 4-1 and a lower sliding seat 4-2. The upper sliding seat 4-1 is installed on the upper guide rail group 3-1, and the lower sliding seat 4-2 is installed on the lower guide rail group. The upper sliding seat 4-1 and the lower sliding seat 4-2 are spaced apart on the two groups of guide rails to provide sufficient sliding space.

[0041] In the example, the pitch-changing mechanism includes a transmission plate 502 provided with a plurality of guide chutes 501. Each guide chute 501 is distributed corresponding to the arrangement structure of each fireworks cylinder 30 of the special-shaped cylinder row 20; a cam follower 503 is arranged in each guide chute 501; each sliding seat 4 is respectively hinged to the cam follower 503; two transmission plate driving cylinders 504 drive the transmission plate 502 to linearly reciprocate along two guide optical axes 505, and the transmission plate 502 drives the sliding seat 4 to move along the sliding guide rail 3 through the guide chute 501 and the cam follower 503 in sequence.

[0042] A telescopic cylinder row support plate 7 is arranged below the cylinder positioning member 1, and the cylinder row support plate 7 is driven by a support plate cylinder 701 to perform horizontal telescopic movement. The receiving platform 2 is located below the cylinder row support plate 7; the upright cylinder row 10 is fed between the cylinder positioning member 1 and the cylinder row support plate 7, the upright cylinder row 10 is placed on the cylinder row support plate 7, and each cylinder positioning member 1 respectively abuts against the front end of each fireworks cylinder 30; the variable pitch mechanism drives the front end of the fireworks cylinder 30 to swing through the sliding seat 4 and the cylinder positioning member 1 to obtain a special-shaped cylinder row.

[0043] In the example, when the upright cylinder row 10 is fed between the cylinder positioning member 1 and the cylinder row support plate 7 under the protection of the side guardrails 13 on both sides, the lifting base 6 is in the rising state, and the variable pitch mechanism, the sliding guide rail 3, the sliding seat 4, and the cylinder positioning member 1 rise accordingly; after the upright cylinder row 10 is fed in place, the lifting base 6 descends, and each cylinder positioning member 1 descends to respectively abut against the front end of each fireworks cylinder 30. When the upright cylinder row 10 is fed, it is avoided that when each fireworks cylinder 30 is inserted into the arc-shaped groove body 101 of each cylinder positioning member 1, a collision occurs, thereby improving the working reliability.

[0044] When the variable pitch mechanism drives the front end of the fireworks cylinder 30 to swing through the sliding seat 4 and the cylinder positioning member 1, the cylinder positioning member 1 performing the variable pitch movement may drag the fireworks cylinder 30 to move forward, causing the cylinder row to be disordered. To avoid this situation, in the example, an arc-shaped limiting member 8 that abuts against the front end of each fireworks cylinder of the special-shaped cylinder row 20 is arranged above the cylinder row support plate 7. Thereby, the forward movement of the fireworks cylinder 30 is restricted. The arc-shaped limiting member 8 can be fixedly installed or can be installed on the cylinder row support plate 7 to perform telescopic movement therewith. In other embodiments, the limiting member can also be other structures or shapes that can limit the forward movement of the fireworks cylinder 30.

[0045] After the special-shaped cylinder row 20 is formed, it needs to descend to be stacked and assembled into a block-shaped whole. In order to ensure that each fireworks cylinder does not become disordered during its descent. In the example, a first lifting guide member 9 corresponding to the front end of the special-shaped cylinder row 20 is arranged below the cylinder row support plate 7. In the example, the first lifting guide member 9 is integrally arc-shaped to correspond to the shape of the front end of the special-shaped cylinder row, and a number of limiting grooves 901 corresponding to the number distribution of the fireworks cylinders 30 in the cylinder row are arranged on the first lifting guide member 9. When the special-shaped cylinder row 20 descends after being formed, the front ends of each fireworks cylinder 30 enter the limiting grooves 901 of the first lifting guide member 9. Hot air can be fed into the limiting grooves 901 to accelerate the curing of the adhesive between the cylinder rows.

[0046] In the example, a second lifting guide member 11 is arranged corresponding to the rear end of the upright cylinder row 10 or the special-shaped cylinder row 20, and the limiting strips 111 on both sides of the second lifting guide member 11 clamp and position both sides of the rear end of the cylinder row. During the formation of the special-shaped cylinder row and when it descends after being formed, it can clamp both sides of the cylinder row to play a role in positioning the rear end of the cylinder row.

[0047] By adopting the above scheme, after obtaining the special-shaped cylinder row 20, the cylinder row support plate 7 retracts, and the special-shaped cylinder row 20 falls on the receiving platform 2, and multiple special-shaped cylinder rows 20 are stacked and glued on the receiving platform 2 that is lifted step by step to form a block-shaped whole. The block-shaped whole is pushed out of the receiving platform 2 by the discharge plate 12 driven by the discharge cylinder 121, and the receiving platform 2 rises and resets under the drive of the screw nut assembly 202, and the equipment performs the next round of work. The stacking and grouping of the special-shaped cylinder row 20 can be completed at the original molding station, and it is no longer necessary to translate the cylinder row between each station. Therefore, the equipment can be effectively simplified and the equipment footprint can be reduced.

[0048] Example 2: See attached Figure 13 , 14 , reflecting another specific structure of the utility model. The difference from Example 1 is that the structure of the pitch-changing mechanism is different. In the example, the pitch-changing mechanism includes a rotating shaft 2001, and a plurality of spiral guide grooves 2002 are distributed on the outer peripheral surface of the rotating shaft 2001, and a cam follower 2003 is arranged in each guide groove 2002; each sliding seat 2004 is respectively hinged to the cam follower 2003; the rotating shaft motor 2005 drives the rotating shaft 2001 to rotate back and forth, and when the rotating shaft 2001 rotates, the sliding seat 2004 is driven to move along the sliding guide rail 2006 through the guide groove 2002 and the cam follower 2003. Each sliding seat 2004 is also provided with a cylinder positioning member 2007.

[0049] Example 3: See attached Figure 15 , reflecting another specific structure of the utility model. The difference from Example 1 is that the structure of the pitch-changing mechanism is different. In the example, the structure of the pitch-changing mechanism is: two adjacent sliding seats 3001 are movably connected by a limiting guide rail 3002, the cylinder body of the sliding drive cylinder 3003 is connected to the sliding seat 3001 at the head end, and the end of the piston rod is connected to the sliding seat 3001 at the tail end. When the cylinder is working, it drives each sliding seat 3001 to reciprocate along the sliding guide rail 3004 so that each sliding seat 3001 is brought together or separated. When it is brought together (reset), it is sent into the upright tube row, and when it is separated, the pitch-changing effect is realized, and each firework tube is driven by the tube positioning member 3006 to obtain the special-shaped tube row 3005. The limiting guide rail 3002 defines the separation distance between the two adjacent sliding seats 3001, and the length of the separation distance is set corresponding to the corresponding tube spacing at the front end of the special-shaped tube row 3005.

[0050] Example 4: See attached Figure 16 , reflecting another specific structure of the utility model. The difference from Example 1 is that the structure of the cylinder positioning member is different. In the example, the cylinder positioning member is a clamping needle group 4002 hinged on the sliding seat 4001. The clamping needle group 4002 clamps the two sides of the firework tube 4003.

[0051] Example 5: See attached Figure 17, reflecting another specific structure of the present utility model. The difference from Embodiment 4 lies in the different structure of the clamping needle group. In the example, the clamping needle group is composed of a pointed needle 5001 and a round-headed needle 5002. The pointed needle 5001 is inserted between two adjacent fireworks cylinders 5003, and the round-headed needle 5002 abuts against the other side of the fireworks cylinder 5003.

[0052] The embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and combines the drawings to specifically describe these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is only limited by the claims and their full scope and equivalents, and is not limited by the disclosed specific embodiments.

Claims

1. A forming mechanism for a special-shaped cylinder row, comprising a cylinder positioning member and a step-by-step lifting receiving platform, characterized in that: It also includes a plurality of sliding seats installed on the sliding guide rail, each sliding seat is connected to a pitch-changing mechanism, the pitch-changing mechanism drives each sliding seat to move along the sliding guide rail, each sliding seat is provided with the cylinder positioning piece; a telescopic cylinder row support plate is arranged below the cylinder positioning piece, and the receiving platform is located below the cylinder row support plate; the upright cylinder row is fed between the cylinder positioning piece and the cylinder row support plate, the upright cylinder row is placed on the cylinder row support plate, and each cylinder positioning piece abuts against each firework tube respectively; the pitch-changing mechanism drives the firework tube to swing through the sliding seat and the cylinder positioning piece to obtain a special-shaped cylinder row.

2. A forming mechanism for a special-shaped tube row as claimed in claim 1, characterized in that: The pitch-changing mechanism comprises a transmission plate provided with a plurality of guide slots, each guide slot corresponding to the arrangement structure distribution of each fireworks tube of the special-shaped tube row; a cam follower is provided in each guide slot; each sliding seat is respectively hinged to the cam follower; the transmission plate driving member drives the transmission plate to reciprocate linearly, and the transmission plate drives the sliding seat to move along the sliding guide rail through the guide slots and the cam followers.

3. A forming mechanism for a special-shaped tube row as claimed in claim 1, characterized in that: The pitch changing mechanism comprises a rotating shaft, a plurality of spiral guide grooves are distributed on the outer peripheral surface of the rotating shaft, and a cam follower is arranged in each guide groove; each sliding seat is respectively hinged to the cam follower; the rotating shaft driving member drives the rotating shaft to rotate reciprocatingly, and the rotating shaft drives the sliding seat to move along the sliding guide rail through the guide grooves and the cam follower.

4. A forming mechanism for a special-shaped tube row as claimed in claim 1, characterized in that: The structure of the variable distance mechanism is: two adjacent sliding seats are movably connected by a limiting guide rail, and the sliding drive member drives each sliding seat to reciprocate along the sliding guide rail so that each sliding seat is brought closer or separated, and the limiting guide rail limits the separation distance between two adjacent sliding seats, and the length of the separation distance is set corresponding to the corresponding inter-tube spacing of the special-shaped tube row.

5. A forming mechanism for a special-shaped tube row as claimed in any one of claims 1 to 4, characterized in that: The sliding guide rail is installed on the lifting base. When the upright tube row is sent into between the tube body positioning piece and the tube row support plate, the lifting base is in an ascending state, and the pitch changing mechanism, the sliding guide rail, the sliding seat, and the tube body positioning piece rise accordingly; after the upright tube row is sent into place, the lifting base descends, and each tube body positioning piece descends to abut against the front end of each firework tube.

6. A forming mechanism for a special-shaped tube row as claimed in any one of claims 1 to 4, characterized in that: A limiting piece abutting against the front end of the special-shaped cylinder row is arranged above the cylinder row supporting plate.

7. A forming mechanism for a special-shaped tube row according to any one of claims 1 to 4, characterized in that: A first lifting guide is provided below the tube row support plate at the front end of the corresponding special-shaped tube row. When the special-shaped tube row is formed and descends, the front end of each firework tube enters the first lifting guide.

8. A forming mechanism for a special-shaped tube row as claimed in any one of claims 1 to 4, characterized in that: A second lifting guide is provided at the rear end corresponding to the upright tube row or the special-shaped tube row, and the second lifting guide clamps and positions the two sides of the rear end of the tube row.

9. A forming mechanism for a special-shaped tube row according to any one of claims 1 to 4, characterized in that: The barrel positioning piece is hinged to the sliding seat with an arc groove or a clamping needle group.

10. A forming mechanism for a special-shaped tube row as claimed in claim 9, characterized in that: The clamping needle group consists of a pointed needle and a round needle. The pointed needle is inserted between two adjacent firework tubes, and the round needle abuts against the other side of the firework tube.

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