Firework tube slitting equipment

Abstract

The utility model discloses firework tube slitting equipment, and particularly relates to the technical field of firework production, and the firework tube slitting equipment comprises a rack; the fixed column is rotationally arranged on the rack, a plurality of movable supporting seats are arranged on the fixed column in a circumferential array and sliding mode, and the outer surfaces of the movable supporting seats form a supporting part used for supporting firework bobbins in an abutting mode; the fixing column is of a hollow structure, a piston in piston fit with the fixing column is arranged in the fixing column, and the piston drives the movable supporting seat to extend in the radial direction so that the outer diameter of the supporting part can be adjusted. According to the firework bobbin slitting equipment, the sliding distance of the piston can be adjusted according to the inner diameters of different firework bobbins, so that the extension lengths of the movable supporting seats are adjusted to adapt to different firework bobbins, a fixing shaft does not need to be independently customized, the multiple movable supporting seats abut against and push the firework bobbins from the inner walls, and the fixing and supporting effects are achieved; the friction force to the firework tube is increased, and the firework tube is prevented from slipping in the slitting process.

Description

Technical Field

[0001] The utility model relates to the technical field of fireworks production, in particular to a fireworks tube cutting device. Background Art

[0002] Firework tube slitting is a key step in the fireworks manufacturing process, mainly used to cut long firework tubes into required lengths for subsequent filling and assembly.

[0003] In conjunction with publication number CN217915587U, publication date 2022-11-29, a fireworks tube slitting device for fireworks production is disclosed, which includes a slitting device body; a control console, which is fixedly connected to the upper end of the slitting device body; a rotating disk, which is rotatably connected to one side end of the control console; a sleeve, which is fixedly connected to one side end of the rotating disk; a first slider, which is arranged on the upper side of the slitting device body through a first sliding mechanism; and a rotating sleeve, which is rotatably connected to the first slider.

[0004] However, in the prior art including the above patents, since the firework tube is sleeved on a sleeve and is driven by the sleeve to rotate for cutting, and the specifications and dimensions of the sleeve are fixed, different sleeves need to be replaced when cutting firework tubes of different specifications. Utility Model Content

[0005] The purpose of the utility model is to provide a firework tube cutting device to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a firework tube cutting device, comprising a frame;

[0007] A fixed column is rotatably mounted on the frame, and a plurality of movable support seats are slidably arranged in a circular array on the fixed column, wherein the outer surfaces of the plurality of movable support seats constitute a support portion for supporting the firework tube;

[0008] The fixed column is a hollow structure, and a piston is provided in the fixed column to form a piston match with the fixed column. The piston drives the movable support seat to extend radially, so that the outer diameter of the support part is adjustable.

[0009] Preferably, a sleeve is provided on the fixed column, and a plurality of hydraulic rods for supporting the movable support seat are arranged in a circumferential array on the sleeve and are connected to the sleeve.

[0010] Preferably, a screw that cooperates with the piston thread is rotatably provided in the fixing column.

[0011] Preferably, it further comprises a conveying roller disposed below the fixed column, the distance between the conveying roller and the supporting portion being smaller than the thickness of the firework tube.

[0012] Preferably, the output end of the movable support seat is rotatably provided with a rotating part for limiting the firework tube, and the input end opposite to the output end is slidably provided with a push plate.

[0013] Preferably, a transmission rod is slidably provided on the movable support seat, and a cross bar that cooperates with the rotating member is fixedly provided on the first end of the transmission rod, and a baffle is provided on the second end.

[0014] In the above technical solution, the utility model provides a firework tube slitting device with the following beneficial effects: the sliding distance of the piston can be adjusted according to the inner diameter of different firework tubes, thereby adjusting the extension length of the movable support seat to adapt to different firework tubes, without the need for separately customized fixed shafts, and multiple movable support seats push the firework tubes from the inner wall to play a fixed support role, thereby increasing the friction on the firework tubes and preventing them from slipping during the slitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the present utility model;

[0017] Figure 2 A schematic cross-sectional view of a fixing column provided in an embodiment of the present utility model;

[0018] Figure 3 The embodiment of the present invention provides Figure 2 A magnified schematic diagram of the structure B in the middle;

[0019] Figure 4 The embodiment of the present invention provides Figure 1 A magnified schematic diagram of the structure in the middle;

[0020] Figure 5 This is a schematic diagram of the transmission rod structure provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Frame; 2. Fixed column; 21. Sleeve; 22. Movable support seat; 23. Transmission rod; 24. Cross bar; 25. Baffle; 26. Fixed base; 27. Hydraulic rod; 28. Rotating part; 3. Turntable; 31. Screw; 32. Piston; 4. Conveyor roller; 5. Push plate. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown, a firework tube cutting device includes a frame 1;

[0025] A fixed column 2 is rotatably mounted on the frame 1, and a plurality of movable support seats 22 are slidably arranged in a circular array on the fixed column 2. The outer surfaces of the plurality of movable support seats 22 constitute a support portion for supporting the firework tube;

[0026] The fixed column 2 is a hollow structure, and a piston 32 is provided inside the fixed column 2 to form a piston fit with the fixed column 2. The piston 32 drives the movable support seat 22 to extend radially, so that the outer diameter of the support portion is adjustable.

[0027] Specifically, it also includes a cutting machine for cutting firework tubes. The fixed column 2 is filled with hydraulic oil. The outer surface of the movable support seat 22 in the initial state is flush with the outer surface of the fixed column 2. After the firework tube is sleeved on the support part, the piston 32 is driven to slide along the axial direction and penetrate into the fixed column 2. The hydraulic oil is squeezed by the piston 32, and the hydraulic oil drives multiple movable support seats 22 to slide out of the fixed column 2 in the radial direction. At this time, the multiple movable support seats 22 push the firework tube from the inner wall, playing a fixed support role, increasing the friction on the firework tube, and avoiding slipping during the cutting process. At the same time, the sliding distance of the piston 32 can be adjusted according to the inner diameter of different firework tubes, thereby adjusting the extension length of the movable support seat 22, which can adapt to different firework tubes without the need for customized fixed shafts.

[0028] In the above technology, the sliding distance of the piston 32 can be adjusted according to the inner diameter of different firework tubes, thereby adjusting the extension length of the movable support seat 22 to adapt to different firework tubes. There is no need to customize the fixed shaft separately. In addition, multiple movable support seats 22 push the firework tube from the inner wall, playing a fixed support role, increasing the friction on the firework tube, and preventing it from slipping during the slitting process.

[0029] As an embodiment further provided by the present invention, a sleeve 21 is sleeved on the fixed column 2 , and a plurality of hydraulic rods 27 for supporting the movable support seat 22 are arranged in a circumferential array and connected to the sleeve 21 .

[0030] Specifically, the sleeve 21 is connected to the fixed column 2, and a plurality of fixed bases 26 are fixedly arranged in a circumferential array on the sleeve 21. The hydraulic rod 27 is slidably set in the fixed base 26. The piston 32 cooperates with the piston of the fixed column 2 to squeeze the hydraulic oil into the sleeve 21, and the hydraulic oil enters the hydraulic rod 27 through the sleeve 21, so that the multiple hydraulic rods 27 move radially under pressure and drive the movable support seat 22 to move radially, thereby adjusting the outer diameter of the support part. The sleeve 21 can evenly distribute the hydraulic oil flowing into the multiple hydraulic rods 27 to avoid excessive or insufficient local pressure in the support part.

[0031] As another embodiment further provided by the present invention, a screw 31 is rotatably provided in the fixed column 2 and is threadably engaged with the piston 32 .

[0032] Specifically, the end of the screw 31 extends out of the fixed column 2 and is fixedly provided with a turntable 3. The staff can drive the screw 31 to rotate by rotating the turntable 3, so that the piston 32 can move along the axial direction through the threaded engagement, thereby adjusting according to different specifications of the firework tube.

[0033] As another embodiment further provided by the present invention, it further includes a conveying roller 4 arranged below the fixed column 2, and the distance between the conveying roller 4 and the supporting portion is smaller than the thickness of the firework tube.

[0034] Specifically, the conveying roller 4 is driven by a driving motor. After the fireworks tube is cut, the conveying roller 4 is started to rotate, thereby driving the fireworks tube to move along the axial direction of the fixed column 2, and after it is separated from the fixed column 2, it is automatically unloaded under the action of gravity, reducing the danger to the workers during the unloading process.

[0035] As another embodiment further provided by the present invention, a rotating member 28 for limiting the position of the firework tube is rotatably provided at the output end of the movable support seat 22, and a push plate 5 is slidably provided at the input end opposite to the output end.

[0036] Specifically, the rotating member 28 is L-shaped, and the first end extends out of the upper surface of the movable support seat 22. A spring is provided on the second end to keep the first end pressed against the movable support seat 22. The firework tube is pushed to the support part by the push plate 5 slidingly provided on the input end. At this time, the first end of the rotating member 28 can limit the movement of the firework tube in the axial direction. Through the elastic force of the spring, both ends of the firework tube are pressed against the fixed column 2, avoiding the friction generated during the cutting process causing the firework tube to slide.

[0037] Furthermore, the push plate 5 may be driven by an electric telescopic rod, a linear motor, or a driving mechanism well known to those skilled in the art, which will not be described in detail here.

[0038] As another embodiment further provided by the present invention, a transmission rod 23 is slidably provided on the movable support seat 22, and a cross bar 24 that cooperates with the rotating member 28 is fixedly provided on the first end of the transmission rod 23, and a baffle 25 is provided on the second end.

[0039] Specifically, the top side of the transmission rod 23 extends out of the upper surface of the movable support seat 22, and the top side is provided with an anti-slip pad, and the rotating member 28 is provided with an inclined groove for the cross bar 24 to move. When the first end of the rotating member 28 presses against the movable support seat 22, the cross bar 24 is located in the inclined groove close to the end of the fixed column 2 and is blocked by the inclined groove, so that there is a gap between the baffle 25 and the movable support seat 22. After the slitting is completed, the push plate 5 moves again along the axial diameter direction and pushes the fireworks tube to approach the output end. At this time, the push plate 5 pushes the baffle 25 to close to the movable support seat 22, and the cross bar 24 is synchronously extended toward the output end through the transmission rod 23. The cross bar 24 pushes the inclined groove, thereby driving the rotating member 28 to rotate, and the second end The spring accumulates force, and the inclined slot changes from an inclined state to a horizontal state. The first end of the rotating member 28 avoids the fireworks tube. At this time, the conveying roller 4 starts synchronously, so that the fireworks tube contacts the rotating conveying roller 4 after being pushed by the push plate 5. Then the conveying roller 4 drives the fireworks tube to move along the axial direction and finally separates from the movable support seat 22. After the fireworks tube is unloaded, the push plate 5 retracts, and the spring at the second end of the rotating member 28 releases potential energy, driving the first end of the rotating member 28 to continue to press against the movable support seat 22. The cross bar 24 is pushed by the force of the inclined slot to return to its original position, that is, the inclined slot is close to the end of the fixed column 2, and the baffle 25 is driven by the transmission rod 23 to have a distance from the movable support seat 22 again.

[0040] Working principle: The firework tube is pushed to the support part by the push plate 5 slidingly arranged on the input end. At this time, the first end of the rotating member 28 can limit the movement of the firework tube in the axial diameter direction. Through the elastic force of the spring, both ends of the firework tube are pressed against the fixed column 2. Then the staff can drive the screw 31 to rotate by rotating the turntable 3, so that the piston 32 can move along the axial diameter direction through the threaded fit. The hydraulic oil is squeezed into the sleeve 21 through the piston fit of the fixed column 2, and the hydraulic oil enters the hydraulic rod 27 through the sleeve 21, so that the multiple hydraulic rods 27 move radially under pressure, and drive the movable support seat 22 to move radially, thereby adjusting the outer diameter of the support part and adjusting it according to different specifications of the firework tube. Cutting begins. After the cutting is completed, the push plate 5 moves again in the axial diameter direction and pushes the firework tube to the output end. At this time, the push plate 5 pushes the baffle 25 to close to the movable support seat 22. The transmission rod 23 drives the cross bar 24 to extend synchronously toward the output end. The cross bar 24 pushes the inclined slot, thereby driving the rotating member 28 to rotate. The spring at the second end accumulates force, and the inclined slot changes from an inclined state to a horizontal state. The first end of the rotating member 28 avoids the fireworks tube. At this time, the conveying roller 4 is started synchronously, so that the fireworks tube contacts the rotating conveying roller 4 after being pushed by the push plate 5. Then the conveying roller 4 drives the fireworks tube to move along the axial direction and finally separates from the movable support seat 22. The fireworks tube moves along the axial direction of the fixed column 2 and is automatically unloaded under the action of gravity after separating from the fixed column 2. After the fireworks tube is unloaded, the push plate 5 retracts, and the spring at the second end of the rotating member 28 releases the potential energy, driving the first end of the rotating member 28 to continue to press against the movable support seat 22. The cross bar 24 is pushed back to its original position by the force of the inclined slot to return to its original position, that is, the inclined slot is close to one end of the fixed column 2, and the baffle 25 is driven by the transmission rod 23 to have a gap with the movable support seat 22 again.

[0041] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A firework tube cutting device, characterized in that: including a frame (1); A fixed column (2) is rotatably arranged on the frame (1), and a plurality of movable support seats (22) are slidably arranged in a circular array on the fixed column (2), wherein the outer surfaces of the plurality of movable support seats (22) form a support portion for supporting the firework tube; The fixed column (2) is a hollow structure, and a piston (32) is provided inside the fixed column (2) to form a piston fit with the fixed column (2). The piston (32) drives the movable support seat (22) to extend radially, so that the outer diameter of the support portion is adjustable.

2. The firework tube cutting device according to claim 1, characterized in that: The fixed column (2) is sleeved with a sleeve (21), and a plurality of hydraulic rods (27) for supporting the movable support seat (22) are arranged in a circumferential array on the sleeve (21) and are connected to each other.

3. The firework tube cutting device according to claim 1, characterized in that: A screw rod (31) is rotatably provided in the fixed column (2) and is threadably engaged with the piston (32).

4. The firework tube cutting device according to claim 1, characterized in that: It also includes a conveying roller (4) arranged below the fixed column (2), and the distance between the conveying roller (4) and the supporting portion is smaller than the thickness of the firework tube.

5. The firework tube cutting device according to claim 1, characterized in that: The output end of the movable support seat (22) is rotatably provided with a rotating member (28) for limiting the position of the firework tube, and the input end opposite to the output end is slidably provided with a push plate (5).

6. The firework tube cutting device according to claim 5, characterized in that: A transmission rod (23) is slidably provided on the movable support seat (22), and a cross bar (24) that engages with the rotating member (28) is fixedly provided at the first end of the transmission rod (23), and a baffle (25) is provided at the second end.

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