Forming device for special-shaped firework tube row

Abstract

The utility model discloses a forming device for a special-shaped firework tube row. The forming device comprises a forming clamp for positioning the lower end of a vertical tube row, a liftable forming mechanism is arranged corresponding to the upper end of the vertical cylinder row; the forming mechanism comprises a driving part and a plurality of forming assemblies arranged in parallel, each forming assembly comprises a sliding block movably arranged on the guide column in a sleeving mode, and a barrel positioning part is arranged on each sliding block; every two adjacent sliding blocks are movably connected through a pin rod, and the length of each pin rod corresponds to the distance between the corresponding cylinders of the special-shaped cylinder row. When the forming mechanism ascends, all the ascending barrel positioning pieces position the upper ends of all the firework barrels in the vertical barrel row correspondingly. The driving piece drives the sliding blocks to move back and forth along the guide columns between the initial position and the working position, when the sliding blocks reach the working position, all the sliding blocks drive the upper ends of the firework cylinders to swing through the cylinder positioning pieces to be distributed in a special shape, and a special-shaped cylinder row is obtained. The vertical cylinder row subjected to punching and lead inserting can be automatically machined into a special-shaped cylinder row; and the working reliability is high.

Description

Technical Field

[0001] This utility model relates to a forming device for irregularly shaped tube arrays of irregularly shaped combined fireworks. Background Technology

[0002] Combination fireworks typically consist of several paper firework tubes arranged in a single row, called a tube array. Then, the tubes in the array are perforated and fitted with fuses. This involves punching holes in each tube and inserting fuses into these holes, connecting the tubes to form a ignition link. Currently, tube arrays are manufactured in this manner. Figure 1 The vertical tube array shown has its individual firework tubes arranged in a parallel axis. Several vertical tube arrays are then stacked and assembled into a block (called a "combination firework"), resulting in a product called a vertical combination firework. The firework tube's internal cavity contains propellant and effect components, which are ignited by a fuse. The equipment used to complete this assembly is commonly referred to in the industry as a "combination firework machine" or "fireworks assembly machine," and it is a relatively mature and widely used type of fireworks machinery.

[0003] However, besides upright combination fireworks, existing products also include irregularly shaped combination fireworks, which are fireworks products assembled from stacked irregularly shaped tubes. In this utility model, the end of the upright or irregularly shaped tube near the perforated insertion part is referred to as the lower end of the tube or firework tube, and the end away from the perforated insertion part is referred to as the upper end of the tube or firework tube. The arrangement structure of the firework tubes in the irregularly shaped tube is as follows: Figure 2 The sector shown Figure 3 The W-shaped pattern shown Figure 4 The V-shape shown Figure 5 The left-leaning type shown Figure 6 The right-leaning type shown Figure 7 The five-finger-shaped tube array shown is an example. Unlike the upright tube array, the tubes in the irregularly shaped tube array are inclined at a certain angle (launch deflection angle) to each other, with the lower ends of each tube close together and a gap between the upper ends of adjacent tubes. Therefore, current assembly equipment can only produce upright combination fireworks and cannot process irregularly shaped fireworks products.

[0004] In the prior art, Chinese invention patent document with application publication number CN 110986690 A discloses "a production device and production method for irregularly arranged fireworks tubes". The upright tubes that have been punched and inserted are processed into an irregular arrangement by a fireworks tube irregular arrangement mechanism. The fireworks tube irregular arrangement mechanism includes a fixed support and fireworks tube slots. One end of the fireworks tube slots is connected to the fixed support and is arranged along the width direction of the fixed support. The connection position is a fulcrum where the fireworks tube slots can rotate left and right. A wedge block that can move up and down is set at the gap between adjacent fireworks tube slots. The wedge block pushes the fireworks tube slots to rotate and swing at a certain angle and then positions them, so that the fireworks tubes are arranged in an irregular shape.

[0005] The main drawback of the existing technology is that when multiple wedges rise and insert into the gaps between multiple adjacent firework tube slots, the position of the gaps is in a constantly changing and uncertain state because each firework tube slot will swing. The rising of multiple wedges and the swinging of multiple firework tube slots are prone to motion interference, resulting in low reliability of its operation. Utility Model Content

[0006] To address the aforementioned drawbacks, the technical problem to be solved by this utility model is to provide a forming device for irregularly shaped tube arrays of irregularly shaped combined fireworks, which processes the upright tube arrays that have been punched and inserted into irregularly shaped tube arrays, and has high operational reliability. To solve the above-mentioned technical problems, the present invention adopts a forming device for irregularly shaped firework tube arrays, comprising an upright tube array, characterized in that it further comprises a forming clamp for positioning the lower end of the upright tube array; a lifting forming mechanism is provided at the upper end of the upright tube array; the forming mechanism comprises a driving component and several forming components arranged in parallel, each forming component comprising a slider movably mounted on a guide post, the slider being provided with a tube positioning component; adjacent sliders are also movably connected by pins, the length of each pin being set corresponding to the inter-tube spacing of the irregularly shaped tube array; when the forming mechanism rises, the tube positioning components that rise accordingly position the upper end of each firework tube in the upright tube array respectively; the driving component drives the slider to move back and forth along the guide post between the initial position and the working position, when the slider reaches the working position, each slider drives the upper end of the firework tube to swing in an irregular distribution through the tube positioning component, thus obtaining the irregularly shaped tube array.

[0007] The beneficial effects of this utility model are that it can automatically process upright cylindrical tubes into fan-shaped, V-shaped, W-shaped, left-leaning, right-leaning, and five-finger-shaped cylindrical tubes, etc., and has high operational reliability.

[0008] Preferably, the cylindrical positioning component is an arc-shaped groove hinged to the slider. When the forming mechanism rises, the sidewalls of each arc-shaped groove that rises with it are inserted between adjacent firework tubes in the upright cylindrical array. Each arc-shaped groove respectively supports and positions the upper end of each firework tube. When each slider slides along the guide post, the arc-shaped groove drives the upper end of the firework tube to swing. When the upper end of the firework tube swings, the arc-shaped groove rotates along the hinge point.

[0009] Preferably, the cylinder positioning component is a needle fixed on the slider. When the forming mechanism rises, each needle that rises with it is inserted between adjacent firework tubes in the vertical cylinder array. The two adjacent needles respectively position the upper end of each firework tube. When each slider slides along the guide post, the needle causes the upper end of the firework tube to swing.

[0010] Preferably, the forming fixture clamps both sides of the upright cylindrical bar. Further, the forming fixture includes a base plate supporting the upright cylindrical bar, a stop bar on the base plate for positioning the bottom end of the upright cylindrical bar, and two clamping bodies connected to springs elastically clamping both sides of the upright cylindrical bar.

[0011] Preferably, the forming fixture includes a retractable positioning strip, on which a plurality of positioning bolts are fixed. When the positioning strip extends, the positioning bolts are inserted into the lower end holes of each firework tube in the upright tube array or between two firework tubes.

[0012] In the above technical solution, the length of each pin is set to correspond to the inter-tube spacing of the irregularly shaped tube array. Preferably, the irregularly shaped tube array is one of the following: fan-shaped tube array, V-shaped tube array, W-shaped tube array, left-leaning tube array, right-leaning tube array, and five-finger tube array. For example, when processing a fan-shaped tube array, the length of each pin is set to correspond to the inter-tube spacing in the fan-shaped tube array. When the driving component drives the slider to slide and separate, the pin length determines the maximum spacing between the sliders. When the slider cannot continue to slide due to the pin length limitation, it reaches the working position, so that the tube positioning component and its firework tube are distributed in the same fan shape; the principle is the same when processing other irregularly shaped tube arrays.

[0013] Of course, any product implementing this utility model does not necessarily need to possess all the preferred structures described above at the same time.

[0014] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., 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 the present invention. In this specification, 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. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. When an element is referred to as being "attached to" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intervening element. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a vertical cylindrical bar structure;

[0016] Figure 2 This is a schematic diagram of the structure of a fan-shaped cylindrical bar.

[0017] Figure 3 This is a schematic diagram of the W-shaped cylindrical bar structure;

[0018] Figure 4 This is a schematic diagram of the V-shaped cylindrical structure;

[0019] Figure 5 This is a schematic diagram of a left-leaning cylindrical bar structure;

[0020] Figure 6 This is a schematic diagram of a right-leaning cylindrical bar structure;

[0021] Figure 7 This is a schematic diagram of the structure of a five-finger shaped tubular array;

[0022] Figure 8 This is a schematic diagram of the structure of the fireworks shaped tube forming device in Example 1 (slider in the initial position);

[0023] Figure 9 This is a schematic diagram of the fireworks irregular tube forming device and its vertical tube assembly structure in Example 1 (slider in initial position);

[0024] Figure 10 This is a schematic diagram of the structure of the fireworks shaped tube forming device in Example 1 (slider in working position);

[0025] Figure 11 This is a schematic diagram of the fireworks irregular tube forming device and its vertical tube assembly structure in Example 1 (slider in working position);

[0026] Figure 12 This is a schematic diagram of the structure of the cylinder positioning component of the fireworks irregular cylinder forming device in Example 2;

[0027] Figure 13 This is a schematic diagram of the forming fixture of the fireworks irregular tube forming device in Example 3. Detailed Implementation

[0028] Example 1: See Appendix Figure 1-11 This describes a specific structure of the present invention. The forming device for the irregularly shaped firework tube array is used to process upright tube arrays that have been punched and inserted in an existing firework assembly machine. In other embodiments, the processing object can also be an upright tube array that has not been punched and inserted.

[0029] In the example, the upright tube array 1 consists of nine firework tubes, which are then processed into a fan-shaped tube array 4. The lower end of the upright tube array 1 is close to the perforated insertion part 101; it also includes a forming fixture 2 for positioning the lower end of the upright tube array 1. In the example, the forming fixture 2 includes a base plate 201 that supports the upright tube array 1, and a stop bar 202 for positioning the bottom end of the upright tube array 1 is provided on the base plate 201. Two clamping bodies 204 connected to springs 203 elastically clamp the two sides of the upright tube array 1.

[0030] The upper end of the upright cylindrical bar 1 is provided with a lifting forming mechanism 3; when in standby mode, the forming mechanism 3 is located below the side of the base plate 201 so that the upright cylindrical bar 1 can enter the forming fixture 2; during operation, it rises under the drive of the lifting mechanism (not shown in the figure) and falls back to its original position after the operation is completed.

[0031] The forming mechanism 3 includes a drive cylinder 301 and nine forming components arranged in parallel. Each forming component includes a slider 303 movably mounted on a guide post 302. Adjacent sliders 303 are also movably connected by pins 306. The length of each pin 306 corresponds to the inter-cylinder spacing of the fan-shaped cylinder array 4. In the example, among the nine sliders 303 arranged in parallel, the central slider is fixed. The piston rod of the drive cylinder 301 passes through all the sliders. The cylinder body of the drive cylinder 301 is connected to the first slider, and the end of the piston rod is connected to the last slider. The drive cylinder 301 drives the sliders 303 to move back and forth along the guide post 302 between the initial position and the working position. In the initial position, the nine sliders 303 are relatively close together. When the drive cylinder 301 drives the sliders 303 to slide and separate, the length of the pins 306 determines the maximum spacing between the sliders 303. When the sliders 303 can no longer slide due to the limitation of the pin length 306, they reach the working position.

[0032] In this example, a single driving element pulls the slider group connected by a pin; in other embodiments, two driving elements can simultaneously pull the connected slider group from both sides, or other driving methods can be used to make it reciprocate along the guide post 302 between the initial position and the working position, corresponding to the irregularly shaped cylinder array arranged in an irregular pattern. The irregularly shaped cylinder array is one of the following: fan-shaped cylinder array, V-shaped cylinder array, W-shaped cylinder array, left-leaning cylinder array, right-leaning cylinder array, and five-finger cylinder array.

[0033] The slider 303 is provided with a cylinder positioning component; in the example, the cylinder positioning component is an arc-shaped groove 305 that is hinged to the slider 303 via a hinge shaft 304. When the forming mechanism 3 rises, the side walls of the nine arc-shaped grooves 305 that rise with it are inserted between adjacent firework tubes in the upright cylinder array 1. The nine arc-shaped grooves 305 respectively support and position the upper ends of the nine firework tubes.

[0034] When slider 303 reaches the working position, each slider 303 drives the upper end of the firework tube to swing through the arc-shaped groove 305. As the upper end of the firework tube swings, the arc-shaped groove 305 rotates along the hinge shaft 304, causing the arc-shaped groove 305 and its firework tubes to be distributed in a fan shape, thus obtaining the fan-shaped tube array 4. The fan-shaped tube array 4 can be fixed by manually or mechanically pasting paper layers on its sides, and then the tubes are assembled to obtain irregularly shaped combination fireworks.

[0035] In other embodiments, the forming device of this utility model can also be used to process the upright cylindrical array into V-shaped cylindrical arrays, W-shaped cylindrical arrays, left-leaning cylindrical arrays, right-leaning cylindrical arrays, five-finger cylindrical arrays and other irregular cylindrical arrays in the manner described above. It is only necessary to set the length of each pin according to the corresponding inter-cylinder spacing of each irregular cylindrical array.

[0036] Example 2: See Appendix Figure 12 The difference from Embodiment 1 is that the cylinder positioning component is a needle 502 fixed on the slider 501 (only three sliders are shown in the figure as an example). When the forming mechanism rises, each needle 502 that rises accordingly is inserted between adjacent firework tubes in the upright cylinder array, and two adjacent needles 502 respectively position the upper end of each firework tube; when each slider 501 slides along the guide post, the needle 502 causes the upper end of the firework tube to swing. In this example, the needle 302 does not need to rotate. Everything else is the same as in Embodiment 1, and will not be described again.

[0037] Example 3: See Appendix Figure 13 The difference from Embodiment 1 is that the forming fixture includes a positioning bar 602 driven by a telescopic cylinder 601. Several positioning bolts 603 are fixedly mounted on the positioning bar 602. When the telescopic cylinder 601 extends the positioning bar 602, the positioning bolts 603 are inserted into the lower end holes of each firework tube in the upright tube array. This effectively positions the lower end of the upright tube array. Everything else is the same as in Embodiment 1 and will not be repeated.

[0038] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in detail with reference to the accompanying drawings to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. However, the present invention 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 spirit of the present invention. Therefore, the present invention is limited only to the claims and their full scope and equivalents, and not to the specific embodiments disclosed.

Claims

1. A forming device for irregularly shaped fireworks tubes, comprising upright tubes, characterized in that, It also includes a forming fixture for positioning the lower end of the upright tube array; a lifting forming mechanism is provided at the upper end of the upright tube array; the forming mechanism includes a driving component and several forming components arranged in parallel, each forming component including a slider movably mounted on a guide post, and a tube positioning component is provided on the slider; adjacent sliders are also movably connected by pins, and the length of each pin is set to correspond to the inter-tube spacing of the irregular tube array; when the forming mechanism rises, each tube positioning component that rises with it positions the upper end of each firework tube in the upright tube array respectively; the driving component drives the slider to move back and forth along the guide post between the initial position and the working position, and when the slider reaches the working position, each slider drives the upper end of the firework tube to swing in an irregular distribution through the tube positioning component, thus obtaining the irregular tube array.

2. The forming device for irregularly shaped fireworks tubes as described in claim 1, characterized in that, The cylinder positioning component is an arc-shaped groove hinged to the slider. When the forming mechanism rises, the sidewalls of each arc-shaped groove that rises with it are inserted between adjacent firework tubes in the vertical cylinder array. Each arc-shaped groove corresponds to and positions the upper end of each firework tube. When each slider slides along the guide post, the arc-shaped groove drives the upper end of the firework tube to swing. When the upper end of the firework tube swings, the arc-shaped groove rotates along the hinge point.

3. The forming device for irregularly shaped fireworks tubes as described in claim 1, characterized in that, The cylinder positioning component is a needle fixed on the slider. When the forming mechanism rises, each needle that rises with it is inserted between adjacent firework tubes in the vertical cylinder array. The two adjacent needles are respectively positioned at the upper end of each firework tube. When each slider slides along the guide post, the needle causes the upper end of the firework tube to swing.

4. The forming device for a firework irregular tube as described in any one of claims 1-3, characterized in that, The forming fixture clamps the two sides of the upright cylindrical bar.

5. The forming device for a firework irregular tube as described in claim 4, characterized in that, The forming fixture includes a base plate that supports the upright cylindrical bar, a stop bar on the base plate that positions the bottom of the upright cylindrical bar, and two clamping bodies connected to springs that elastically clamp the two sides of the upright cylindrical bar.

6. A forming device for irregularly shaped fireworks tubes as described in any one of claims 1-3, characterized in that, The forming fixture includes a retractable positioning strip, on which several positioning bolts are fixed. When the positioning strip extends, the positioning bolts are inserted into the lower end holes of each firework tube in the upright tube array or between two firework tubes.

7. A forming device for irregularly shaped fireworks tubes as described in any one of claims 1, 2, 3, and 5, characterized in that, The irregular-shaped tubular array is one of the following: fan-shaped tubular array, V-shaped tubular array, W-shaped tubular array, left-leaning tubular array, right-leaning tubular array, and five-finger-shaped tubular array.

8. The forming device for a firework irregular tube as described in claim 4, characterized in that, The irregular-shaped tubular array is one of the following: fan-shaped tubular array, V-shaped tubular array, W-shaped tubular array, left-leaning tubular array, right-leaning tubular array, and five-finger-shaped tubular array.

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