A device for forming irregularly shaped tubes of irregularly shaped combined fireworks.

Abstract

This invention discloses a device for forming irregularly shaped tube arrays of fireworks, including a forming clamp for positioning the lower end of an upright tube array; a lifting forming mechanism corresponding to the upper end of the upright tube array; the forming mechanism includes a transmission plate and several parallel forming components: the transmission plate has several guide grooves, each guide groove corresponding to the arrangement of the fireworks tubes in the irregularly shaped tube array; each forming component includes a slider movably mounted on a guide post, a connecting piece at the bottom of the slider movably mounted in a guide groove, and a tube positioning component on the slider; when the forming mechanism rises, the correspondingly rising tube positioning components position the upper end of each fireworks tube in the upright tube array; the transmission plate is connected to a drive mechanism that performs linear reciprocating motion between the initial position and the working position; each slider drives the upper end of the fireworks tube to swing in an irregularly shaped distribution through the tube positioning components. This device can automatically process upright tube arrays into irregularly shaped tube arrays; it has high operational reliability.

Description

Technical Field

[0001] This invention 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. Irregularly shaped combination fireworks are fireworks products assembled from stacked irregularly shaped tube arrays. In this invention, the end of the upright or irregularly shaped tube array near the perforated insertion part is referred to as the lower end of the tube array or firework tube, and the end away from the perforated insertion part is referred to as the upper end of the tube array or firework tube. The arrangement structure of the firework tubes in the irregularly shaped tube array 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. Summary of the Invention

[0006] To address the aforementioned drawbacks, the technical problem this invention aims to solve is to provide a tube-forming device for irregularly shaped combination fireworks, which processes a vertically shaped tube after punching and inserting into an irregularly shaped tube, achieving high operational reliability. To solve the above technical problem, the technical solution adopted by this invention is an irregularly shaped tube-forming device for irregularly shaped combination fireworks, comprising a vertically shaped tube, characterized in that it further includes a forming clamp for positioning the lower end of the vertically shaped tube; a lifting forming mechanism is provided corresponding to the upper end of the vertically shaped tube; the forming mechanism includes a transmission plate and several parallel forming components:

[0007] The transmission plate is provided with several guide grooves, each guide groove corresponding to the arrangement structure of each firework tube in the irregular tube row;

[0008] Each molding component includes a slider that is movably mounted on a guide post, a connector at the bottom of the slider that is movably mounted in a guide groove, and a cylindrical positioning component on the slider.

[0009] When the forming mechanism rises, the positioning components of each cylinder that rises with it position the upper end of each firework tube in the vertical cylinder array.

[0010] The transmission plate is connected to the drive mechanism, which makes linear reciprocating motion between the initial position and the working position. When the transmission plate is in the initial position, the connecting member is located at the first end of each guide groove. When the drive mechanism drives the transmission plate to the working position, the connecting member is located at the tail end of each guide groove. Each guide groove drives each slider to slide along the guide post through the connecting member. Each slider drives the upper end of the firework tube to swing in an irregular distribution through the tube positioning member, thus obtaining an irregular tube array.

[0011] The beneficial effects of this invention are that it can automatically process upright cylindrical tubes into irregularly shaped cylindrical tubes such as fan-shaped, V-shaped, W-shaped, left-leaning, right-leaning, and five-finger-shaped tubes; and it has high operational reliability.

[0012] The resulting irregularly shaped tubes can be fixed by manually or mechanically pasting paper layers onto their sides, and then assembled into irregularly shaped combination fireworks.

[0013] 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.

[0014] 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.

[0015] Preferably, the forming fixture clamps both sides of the upright cylindrical bar.

[0016] 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.

[0017] In the above technical solution, the arrangement of each guide groove corresponding to the arrangement of each firework tube in the irregularly shaped tube array refers to the distribution of each guide groove on the transmission plate, which corresponds to the arrangement of each firework tube in 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, one guide groove corresponds to one firework tube, and the guide grooves are also distributed in a fan shape on the transmission plate; when processing a V-shaped tube array, the guide grooves are also distributed in a V shape on the transmission plate; when processing a W-shaped tube array, the guide grooves are also distributed in a W shape on the transmission plate. The principle is the same when processing other irregularly shaped tube arrays.

[0018] Of course, any product implementing the present invention does not necessarily need to possess all of the preferred structures described above at the same time.

[0019] 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 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

[0020] Figure 1 This is a schematic diagram of a vertical cylindrical bar structure;

[0021] Figure 2 This is a schematic diagram of the structure of a fan-shaped cylindrical bar.

[0022] Figure 3 This is a schematic diagram of the W-shaped cylindrical bar structure;

[0023] Figure 4 This is a schematic diagram of the V-shaped cylindrical structure;

[0024] Figure 5 This is a schematic diagram of a left-leaning cylindrical bar structure;

[0025] Figure 6 This is a schematic diagram of a right-leaning cylindrical bar structure;

[0026] Figure 7 This is a schematic diagram of the structure of a five-finger shaped tubular array;

[0027] Figure 8 This is a first-view schematic diagram of the overall structure of Example 1;

[0028] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0029] Figure 10 This is a second-view schematic diagram of the overall structure of Embodiment 1;

[0030] Figure 11 This is a third-view schematic diagram of the overall structure of Example 1;

[0031] Figure 12This is a schematic diagram of the cylindrical support bar and lifting pressure bar structure in Example 1;

[0032] Figure 13 This is a schematic diagram of the molding mechanism structure in Example 1. Figure 1 ;

[0033] Figure 14 This is a schematic diagram of the molding mechanism structure in Example 1. Figure 2 ;

[0034] Figure 15 This is a schematic diagram of the bottom structure of the transmission plate in Example 1;

[0035] Figure 16 This is a schematic diagram of the lower clamp of Example 1;

[0036] Figure 17 This is a schematic diagram of the molding mechanism structure in Example 2.

[0037] Example 1, Figure Labeling:

[0038] 101. Cylindrical bearing bar; 102. Lifting pressing bar; 103. Pressing bar cylinder; 104. Feeding station; 105. Forming station; 106. Third station; 107. Fourth station; 108. Fifth station; 109. Sixth station; 110. Feeding moving platform; 111. First clamping cylinder; 112. Lower feeding clamp; 113. Upper feeding clamp; 114. Worktable; 115. Forming moving platform; 1161. Positioning bar; 1162. Positioning bolt; 1163. Lower clamping cylinder; 1171. Upper clamping cylinder; 118. Transmission plate; 119. Guide groove; 120. 121. Guide post; 122. Slider; 1221. Rotating shaft; 1222. Bearing; 123. Hinge shaft; 124. Arc-shaped groove; 125. Forming cylinder; 126. Paper roll; 127. Guide roller; 128. Paper tape; 129. Glue box; 130. Glue roller; 131. Third moving platform; 132. Third clamp; 133. Heating plate; 134. Directional moving frame; 135. Long-stroke drive cylinder; 136. Platform lifting cylinder; 137. Stop bar; 138. Drum collection mechanism; 139. Paper cutting mechanism; 190. Vertical drum; 191. Fan-shaped drum; 192. Sticker fan-shaped drum. Detailed Implementation

[0039] Example 1: See Appendix Figure 1-16This example illustrates a specific structure of the present invention, using the irregularly shaped tube array forming device for irregularly shaped combined fireworks as its core. This equipment can automatically process perforated and inserted tube arrays into irregularly shaped arrangements such as fan-shaped, V-shaped, W-shaped, left-leaning, and right-leaning tube arrays, exhibiting high operational reliability. Simultaneously, the entire equipment achieves continuous production through multi-station operation, allowing feeding and forming to proceed synchronously, significantly shortening the forming cycle and effectively improving work efficiency in continuous production. The processing target is upright tube arrays that have undergone perforation and insertion in existing fireworks assembly machines; in this example, upright tube arrays are processed into fan-shaped tube arrays. In other embodiments, the processing target can also be upright tube arrays that have not undergone perforation and insertion.

[0040] The equipment frame is fixedly equipped with cylindrical support bars 101, which are arranged along the length of the equipment. Above the cylindrical support bars 101, lifting pressure bars 102 are installed, which are driven to rise and fall by pressure bar cylinders 103 at both ends of the frame.

[0041] Along the cylindrical support bar 101, the feeding station 104, forming station 105, and third station 106 are arranged in parallel in sequence. The example also includes the fourth station 107, fifth station 108, and sixth station 109, which are also arranged in parallel in sequence.

[0042] The feeding station 104 includes a liftable feeding moving platform 110, on which is equipped an upper feeding clamp 113 driven by a first clamping cylinder 111 and a lower feeding clamp 112 fixed on the feeding moving platform 110. After the upright cylindrical column A190 is punched and inserted, it is pushed into the feeding station 104 along the worktable surface 114 until it is stopped by the stop bar 137. The lower feeding clamp 112 moves upward and cooperates with the upper feeding clamp 113 to clamp the upright cylindrical column A190. When the feeding moving platform 110 rises, it causes the upright cylindrical column A190 to disengage from the column support bar 101, avoiding friction that could cause the fireworks to roll erratically.

[0043] The forming station 105 includes a liftable forming moving platform 115, on which the forming moving platform 115 is provided with the irregular tube forming device of the irregular combination fireworks of the present invention, which includes a forming fixture and a forming mechanism.

[0044] In the example, the forming fixture includes a lower fixture and an upper fixture: several positioning bolts 1162 are fixedly provided on the positioning strip 1161 of the lower fixture, and the lower fixture cylinder 1163 drives the positioning bolts 1162 to be inserted into the lower end holes of each firework tube of the upright tube array A190 through the positioning strip 1161. The upper fixture cylinder 1171 drives the upper fixture to move downward, and the upper and lower fixtures cooperate to clamp the upright tube array A190.

[0045] The molding mechanism includes a transmission plate 118 and several molding components arranged in parallel:

[0046] The transmission plate 118 is provided with a plurality of guide grooves 119, each guide groove 119 corresponding to the arrangement structure of each firework tube in the fan-shaped tube array. This means that the distribution structure of each guide groove 119 on the transmission plate 118 corresponds to the arrangement structure of each firework tube in the irregular tube array. In this example, the irregular tube array is a fan-shaped tube array. Therefore, firstly, the number of guide grooves 119 is the same as the number of firework tubes; secondly, the distribution angle of each guide groove 119 and the corresponding firework tube is the same, so each guide groove 118 is also fan-shaped distributed on the transmission plate 118. However, it is not required that the length, width, and size of the guide grooves be consistent with those of the firework tubes. In other embodiments, when the irregular tube array is a V-shaped tube array, a W-shaped tube array, a left-leaning tube array, a right-leaning tube array, etc., each guide groove is also correspondingly distributed on the transmission plate. Further details will not be provided.

[0047] Each molding component includes a slider 121 movably mounted on a guide post 120, and a connector at the bottom of the slider 121 movably mounted in a guide groove 119. In the example, the connector includes a rotating shaft 1221 fixed to the bottom of the slider 121, and a bearing 1222 mounted on the rotating shaft 1221 movably mounted in the guide groove 119.

[0048] The slider 121 is provided with a cylinder positioning component. In the example, the cylinder positioning component is an arc-shaped groove 124, which is hinged to the slider 121 via a hinge shaft 123. The arc-shaped groove 124 is provided at the upper end of the upright cylinder array A190.

[0049] The working principle of the forming mechanism is:

[0050] When the forming moving platform 115 rises, it drives the forming mechanism to rise as well. The sidewalls of the rising arc-shaped grooves 124 insert between adjacent firework tubes in the upright tube array A190, with each arc-shaped groove 124 correspondingly supporting and positioning the upper end of each firework tube. The transmission plate 118 connects to the forming cylinder 125, which reciprocates linearly between the initial and working positions. When the transmission plate 118 is in the initial position, the bearing 1222 is located at the beginning of each guide groove 119. When the transmission plate 118 reaches the working position, the bearing 1222 is located at the end of each guide groove 119, further driving each slider 121 to slide axially along the guide post 120. Each slider 121, through the arc-shaped grooves 124, causes the upper end of the firework tube to swing, forming a fan-shaped tube array 191. As the upper end of the firework tube swings, the arc-shaped grooves 124 rotate along the hinge axis 123.

[0051] In the above process, the forming mechanism only needs to rise by 0.3 to 1 firework tube diameter for the transmission plate 118 to move. The forming cycle is greatly shortened compared to the existing technology, and the work efficiency is effectively improved in continuous production.

[0052] In this example, the third station 106 includes a paper feeding mechanism and a gluing mechanism. The tube support bar 101 between the forming station 105 and the third station 106 has a recessed area. The paper feeding mechanism includes a paper roll 126 located below the tube support bar 101, and a guide roller 127 located in the recessed area. The paper strip 128 unwound from the paper roll 126 passes around the guide roller 127 and is laid flat on the tube support bar 101. The gluing mechanism includes a glue box 129 located in the recessed area, and a gluing roller 130 is provided inside the glue box 129. In the recessed area, the guide roller 127 is close to the third station 106, and the glue box 129 is close to the forming station 105. During the process of the fan-shaped tube 191 entering the third station 106 from the forming station 105, the gluing roller 130 abuts against the bottom surface of the fan-shaped tube 191 to apply glue. After the fan-shaped tube array 191 enters the third station 106, it is glued to the paper tape 128 to form the sticker fan-shaped tube array 192, completing the pasting process of the release paper layer. When the lifting pressure strip 102 moves downward, it cooperates with the tube array support strip 101 to clamp and apply pressure, making the glue more secure.

[0053] In the example, the third station 106 includes a liftable third moving platform 131, on which a third clamp 132 clamps the sticker fan-shaped tube array 192 from above and below. The third moving platform 131 moves synchronously with the feeding moving platform 110 and the forming moving platform 115. When the third moving platform 131 rises, it causes the sticker fan-shaped tube array 192 to disengage from the tube array support strip 101. After the third moving platform 131 moves from the third station 106 to the fourth station 107, it resets and delivers the sticker fan-shaped tube array 192 to the fourth station 107 for adhesive curing.

[0054] The fourth station 107, the fifth station 108, and the sixth station 109 are all equipped with liftable mobile platforms. These platforms have clamps that hold the cylinder packs in place, facilitating their sequential transport to the next station. The transport principle is the same as the previous stations and will not be described further. The mobile platforms are equipped with heating plates 133 for drying the cylinder packs. Multiple heating plates 133 heat and cure the adhesive in stages, shortening the cycle between each station movement and ensuring the adhesive cures while further accelerating work efficiency. Simultaneously, the fourth station 107, the fifth station 108, and the sixth station 109 can also serve as backup stations, where tasks such as applying adhesive to lead wire holes, sealing lead wires with tape, and attaching reinforcing cardboard to the cylinder packs can be performed as needed.

[0055] In this example, each mobile platform device is synchronously driven by a long-stroke drive cylinder 135 on the directional moving frame 134, and moves synchronously back and forth along the cylindrical support bar between each workstation. The directional moving frame 134 is synchronously raised and lowered by platform lifting cylinders 136 at both ends of the frame. This avoids the need to set up a moving drive mechanism and a lifting drive mechanism for each workstation, effectively simplifying the equipment structure and ensuring the synchronicity of the moving and lifting movements of each workstation.

[0056] The upright cylindrical tubes 190, after being punched and inserted, continuously enter the feeding station 104. Each upright cylindrical tube 190 sequentially passes through six stations, ultimately being processed into adhesive-cured sticker fan-shaped cylindrical tubes 192. In this example, a tube collection mechanism 138 is also provided after the sixth station 109, which collects the dried sticker fan-shaped cylindrical tubes 192 sent from the sixth station sequentially via a step-by-step lifting platform. A paper cutting mechanism 139 is provided between the sixth station 109 and the tube collection mechanism 138 to cut the paper tape 128.

[0057] Example 2: Another structure reflecting the cylindrical positioning component of the present invention, see attached diagram. Figure 17 The cylinder positioning component is a needle 302 fixedly mounted on the slider 301. When the forming mechanism rises, each needle 302 rises and inserts between adjacent firework tubes in the upright cylinder array. Two adjacent needles 302 respectively position the upper end of each firework tube. When each slider 301 slides along the guide post 303, the needle 302 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.

[0058] The embodiments of the present invention disclosed above are merely illustrative of the invention. The embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in conjunction with the accompanying drawings to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. However, the invention can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the invention. Therefore, the invention is limited only by the claims and their full scope and equivalents, and not by the specific embodiments disclosed.

Claims

1. A device for forming a row of shaped tubes of a shaped combination firework, comprising a row of upright tubes, characterized in that, It also includes a forming fixture for positioning the lower end of the upright cylindrical section; a lifting forming mechanism is provided at the upper end of the upright cylindrical section; the forming mechanism includes a transmission plate and several forming components arranged in parallel: The transmission plate is provided with several guide grooves, each guide groove corresponding to the arrangement structure of each firework tube in the irregular tube row; Each molding component includes a slider that is movably mounted on a guide post, a connector at the bottom of the slider that is movably mounted in a guide groove, and a cylindrical positioning component on the slider. When the forming mechanism rises, the positioning components of each cylinder that rises with it position the upper end of each firework tube in the vertical cylinder array. The transmission plate is connected to the drive mechanism, which makes linear reciprocating motion between the initial position and the working position. When the transmission plate is in the initial position, the connecting member is located at the first end of each guide groove. When the drive mechanism drives the transmission plate to the working position, the connecting member is located at the tail end of each guide groove. Each guide groove drives each slider to slide along the guide post through the connecting member. Each slider drives the upper end of the firework tube to swing in an irregular distribution through the tube positioning member, thus obtaining an irregular tube array.

2. The irregularly shaped tube forming device for irregularly shaped combined fireworks 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 irregularly shaped tube forming device for irregularly shaped combined fireworks 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 irregularly shaped tube forming device for irregularly shaped combined fireworks 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 irregularly shaped tube forming device for irregularly shaped combined fireworks 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.

6. The irregularly shaped tube forming device for irregularly shaped combined fireworks as described in any one of claims 1-3, 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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