Firework paper tube roadway stacking device

Abstract

The invention discloses a firework paper tube roadway stacking device, and relates to the technical field of stacking equipment, the firework paper tube roadway stacking device comprises a door-shaped frame assembly, the door-shaped frame assembly comprises a frame-shaped frame located above a conveying belt assembly line, and two supporting frames located on the two sides of the conveying belt assembly line are fixed to the bottom of the frame-shaped frame; each circulating roller belt assembly comprises a first driving roller and a second driving roller which are rotationally mounted on the corresponding supporting frame; the lifting assembly comprises a plurality of supporting strip plates hinged to the outer face of the conveying belt, the supporting strip plates in the supporting state can convey the connected paper tubes downwards intermittently in the roadway space, the paper tubes are kept in the lifting state all the time in the whole moving process, the firework paper tubes do not need to be clamped, and the working efficiency is improved. Therefore, collapse and deformation of the firework paper tubes are effectively reduced, and the stacking completeness of the paper tubes on the turnover frame can be kept.

Description

Technical Field

[0001] The invention relates to the technical field of stacking equipment, and in particular to a firework paper tube lane stacking device. Background Art

[0002] Fireworks are a kind of gunpowder product with pyrotechnic agents in the shell that can form colors, patterns, and sounds when ignited. The shell is mainly made of paper tubes with consistent specifications. After rolling, the paper tubes are sorted by the conveyor belt assembly line and transported to the next process. When temporary inventory is required, the paper tubes on the conveyor belt are generally transferred to the turnover rack for stacking, so as to facilitate the subsequent paper tube drying and other processes to proceed smoothly;

[0003] The existing method of stacking paper tubes on the turnover rack is mainly to place them manually or with the assistance of corresponding stacking equipment. For example, the Chinese patent publication number is: CN221092819U, and the name of the patent is "A stacking machine for the production of firecracker tubes". The patent includes "a support frame, a placing frame is fixedly connected to the rear end of the bottom inner wall of the support frame, a lifting mechanism is fixedly connected to the right side of the placing frame, a paper tube mechanism is fixedly connected to the right side of the top of the placing frame, a blocking plate is fixedly connected to the center position of the left side of the rear end of the inner wall of the support frame, and a forward and backward moving drive motor is fixedly connected to the center left position of the top rear end of the support frame, and a screw is passed through and fixedly connected to the output end of the forward and backward moving drive motor";

[0004] The existing stacking device mainly uses a structure similar to a mechanical gripper to apply a certain clamping force to the fireworks paper tubes, thereby clamping and transporting the fireworks paper tubes to the turnover rack for stacking. The disadvantage of the above method is that since the fireworks paper tubes are hollow in a tubular shape and the glue on the newly rolled paper tubes has not yet dried and solidified, it is difficult to control the clamping force during clamping, and the fireworks paper tubes are prone to collapse and deformation when clamped. In order to solve the above problem, we propose a fireworks paper tube aisle stacking device. Summary of the invention

[0005] The purpose of the present invention is to provide a firework paper tube lane stacking device to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A firework paper tube stacking device comprises a gantry assembly, which comprises a frame frame located above a conveyor belt assembly line, and two support frames located on both sides of the conveyor belt assembly line are fixed to the bottom of the frame frame;

[0008] Two circulating roller belt assemblies, comprising a first driving roller and a second driving roller rotatably mounted on each support frame, wherein the first driving roller and the second driving roller are vertically connected by a transmission belt, and the spacing between the transmission belts on the two support frames constitutes a lane space for accommodating the revolving frame;

[0009] The lifting assembly includes a plurality of support strips hingedly mounted on the outer surface of the transmission belt. The support strips on two adjacent transmission belts can form a supporting state in the tunnel space for connecting the paper tubes on the conveyor belt assembly line. The support strips in the supporting state can intermittently transport the connected paper tubes downward in the tunnel space. The support strips also have a retreat state in the tunnel space for canceling the supporting force on the paper tubes. When the bottom of the support strips is subjected to the force of the stacked paper tubes, it switches from the supporting state to the retreat state, and the connected paper tubes are stacked and stacked on the stacked paper tubes.

[0010] Preferably, the first driving roller and the second driving roller are both gear rollers rotatably connected to the support frame, and the first driving roller and the second driving roller are distributed in parallel along the vertical direction.

[0011] Preferably, the transmission belt comprises a belt body, and a plurality of evenly distributed hard rods are fixed on the inner side wall of the belt body, and each of the hard rods forms a tooth surface portion on the inner side wall of the belt body that meshes with the first driving roller and the second driving roller.

[0012] Preferably, both ends of each of the hard rods extend out from the width side ends of the belt body, and the first drive roller and the second drive roller have the same structure. The first drive roller and the second drive roller both include a roller body, and a roller shaft rod coaxially fixed on the roller body and rotatably connected to the support frame is passed through the roller body, and the length of the roller body is the same as the width of the belt body.

[0013] Preferably, the two ends of the support strip plate are hinged to the ends of the corresponding hard rods through a connecting rod assembly, and the connecting rod assembly includes a mounting blind opening opened at the end of the hard rod, and a through opening connected to the mounting blind opening is vertically opened on the side of the hard rod, an extension pipe rod is movably inserted through the through opening, and an axial core rod is movably inserted through the rod body of the extension pipe rod located in the mounting blind opening, one end of the axial core rod is connected to the end wall of the mounting blind opening, and the two ends of the support strip plate are connected to the corresponding extension pipe rods.

[0014] Preferably, the contour surface of the through opening includes a first contour surface and a second contour surface, and the first contour surface can provide support force for the support strip in a supporting state.

[0015] Preferably, an axial rod is fixed to one side of the support plate, both ends of the axial rod protrude from the end of the support plate, the protruding ends of the axial rod are rotatably inserted into the side of the extension tube rod, and a switching unit is provided in the extension tube rod. The switching unit limits the torsion of the axial rod when the support plate is in a supporting state, and the switching unit loosens and releases the axial rod when the support plate switches to a retreat state.

[0016] Preferably, the switching unit includes a rack plate slidably arranged inside the extension tube rod, the rack plate is provided with an insertion opening, and the side surface of one end of the rack plate is engaged with a gear ring fixedly sleeved with the shaft rod. The switching unit also includes an insertion interface opened on the extension tube rod, and the insertion interface is adapted to be plugged with an insertion rod fixed to the inner side wall of the through-opening, and when the support plate is in a supporting state, the insertion rod extends into the insertion interface and is plugged into the insertion opening.

[0017] Preferably, a wedge-shaped portion is provided at the insertion end of the insertion rod, and when the insertion rod is inserted into the insertion opening, the wedge-shaped portion is in compression contact with the insertion opening, and the rack plate moves along the length direction of the extension pipe rod.

[0018] Preferably, a driving assembly is installed on the frame frame, and the driving assembly can provide synchronous intermittent driving for the circulating roller-belt assemblies on the two supporting frames at the same time, and the rotation directions of the circulating roller-belt assemblies on the two supporting frames are opposite.

[0019] In the above technical scheme, the present invention provides a fireworks paper tube aisle stacking device, which arranges a circulating roller belt assembly at the discharge end of the conveyor belt assembly line, and conveys the connected paper tube downward through the lifting assembly on the circulating roller belt assembly. When the lifting assembly is subjected to the upward force of the stacked paper tubes during the descending process, the lifting assembly is separated from the paper tube, so that the connected paper tube is stacked on the stacked paper tube. During the entire moving process, the paper tube is always kept in a lifted state, and there is no need to clamp the fireworks paper tube, thereby effectively reducing the occurrence of flattening and deformation of the fireworks paper tube, which is beneficial to maintaining the integrity of the paper tube stacking on the turnover rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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.

[0021] Figure 1 It is an overall schematic diagram of a firework paper tube lane stacking device of the present invention;

[0022] Figure 2It is a schematic diagram of the relative position of the conveyor belt assembly line of the fireworks paper tube lane stacking device of the present invention in the lane space between two transmission belts;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the cross section at BB;

[0025] Figure 5 It is a schematic diagram of a turnover frame of a fireworks paper tube lane stacking device of the present invention.

[0026] Description of reference numerals:

[0027] 1. Gantry assembly; 1.1. Frame; 1.2. Support frame; 1.3. Drive assembly; 2. Circulating roller belt assembly; 2.1. First drive roller; 2.2. Second drive roller; 2.3. Drive belt; 2.31. Belt body; 2.32. Hard rod; 3. Lifting assembly; 3.1. Support strip plate; 3.2. Axle rod; 4. Roller body; 5. Roller shaft rod; 6. Connecting rod assembly; 6.1. Blind opening for installation; 6.2. Through opening; 6.21, first contour surface; 6.22, second contour surface; 6.3, extension tube rod; 6.4, axial core rod; 7, switching unit; 7.1, rack plate; 7.2, insertion port; 7.3, gear ring; 7.4, plug interface; 7.5, plug rod; 7.6, wedge-shaped portion; 8, branch port; 9, counterweight column; 10, accommodating chamber; 11, sliding column; 12, connecting line; 13, bottom plate; 14, moving wheel; 15, side baffle. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-5 The embodiment of the present invention provides a firework paper tube stacking device, comprising a gantry assembly 1, which comprises a frame frame 1.1 located above the conveyor belt assembly line, and two support frames 1.2 located on both sides of the conveyor belt assembly line are fixed to the bottom of the frame frame 1.1;

[0030] Two circulating roller belt assemblies 2, which include a first driving roller 2.1 and a second driving roller 2.2 rotatably mounted on each support frame 1.2, the first driving roller 2.1 and the second driving roller 2.2 are vertically connected by a transmission belt 2.3, and the spacing between the transmission belts 2.3 on the two support frames 1.2 constitutes a lane space for accommodating the turnover frame;

[0031] The lifting assembly 3 comprises a plurality of support strips 3.1 hingedly mounted on the outer surface of the transmission belt 2.3. The length direction line of the support strips 3.1 is parallel to the axis center line of the first driving roller 2.1. The support strips 3.1 on two adjacent transmission belts 2.3 can form a supporting state for connecting the paper tubes on the conveyor belt assembly line in the lane space. The support strips 3.1 in the supporting state can intermittently transport the connected paper tubes downward in the lane space. The support strips 3.1 also have a retreat state in the lane space in which the supporting force for the paper tubes is cancelled. When the bottom of the support strips 3.1 is subjected to the force of the stacked paper tubes, it switches from the supporting state to the retreat state, and the connected paper tubes are stacked and stacked on the stacked paper tubes.

[0032] Specifically, the frame opening surface of the frame frame 1.1 is parallel to the horizontal plane, the support frames 1.2 located on both sides of the conveyor belt assembly line are vertically fixed to the bottom of the frame frame 1.1, the two support frames 1.2 are vertically parallel to each other, the bottom ends of the support frames 1.2 are fixed to the ground, the conveyor belt assembly line transports the firework paper tubes horizontally, the firework paper tubes are arranged in parallel on the conveyor belt assembly line, the axis of the firework paper tubes is perpendicular to the transportation direction line of the conveyor belt assembly line, and the spacing value between the two support frames 1.2 is greater than the width value of the conveyor belt assembly line;

[0033] In actual use, the turnover frame is pushed into the tunnel space. When the supporting strips 3.1 on the two adjacent transmission belts 2.3 are flush with the discharge end of the conveyor belt assembly line in the tunnel space, the transmission belt 2.3 stops moving downward. At this time, the supporting strips 3.1 form a supporting state for connecting the paper tubes on the conveyor belt assembly line. Then the paper tubes on the conveyor belt assembly line are transferred to the supporting strips 3.1. At this time, the bottoms of the two ends of the paper tubes contact with their corresponding supporting strips 3.1, and then the transmission belt 2.3 stops moving downward. At this time, the supporting strips 3.1 form a supporting state for connecting the paper tubes on the conveyor belt assembly line. Then, the paper tubes on the conveyor belt assembly line are transferred to the supporting strips 3.1. At this time, the bottoms of the two ends of the paper tubes contact with their corresponding supporting strips 3.1. The moving belt 2.3 resumes to move downward, and the supporting strip 3.1 descends along with the driving belt 2.3, thereby realizing the downward conveying of the connected paper tube in the tunnel space. In this process, when the bottom of the supporting strip 3.1 contacts the paper tubes already stacked in the tunnel space, under the force of the stacked paper tubes, the supporting strip 3.1 switches from the supporting state to the withdrawing state, and the supporting strip 3.1 no longer supports the paper tubes, so that the connected paper tubes are stacked and stacked on the stacked paper tubes.

[0034] It should be further explained that the turnover rack includes a long strip-shaped bottom plate 13 for placing stacked paper tubes, a plurality of movable wheels 14 are installed under the bottom plate 13, and side baffles 15 are vertically fixed at both ends of the length direction of the bottom plate 13. When in use, the turnover rack is directly inserted into the tunnel space, and the top of the side baffle 15 is lower than the position below the conveyor belt assembly line, and the vertical movement trajectory of the support plate 3.1 in the supporting state is within the accommodating space of the turnover rack, thereby ensuring that the bottom of the support plate 3.1 in the supporting state can come into contact with the stacked paper tubes on the turnover rack, and when the support plate 3.1 is in the withdrawn state, the vertical movement trajectory of the support plate 3.1 is outside the accommodating space of the turnover rack.

[0035] In another embodiment provided by the present invention, the first driving roller 2.1 and the second driving roller 2.2 are both gear rollers rotatably connected to the support frame 1.2, the first driving roller 2.1 and the second driving roller 2.2 are arranged in parallel along the vertical direction, and the axis lines of the first driving roller 2.1 and the second driving roller 2.2 are parallel to the horizontal plane;

[0036] The transmission belt 2.3 includes a belt body 2.31, on the inner side wall of which are fixed a plurality of uniformly distributed hard rods 2.32, the length direction lines of the hard rods 2.32 are parallel to the axis of the first driving roller 2.1, and each hard rod 2.32 forms a tooth surface area meshing with the first driving roller 2.1 and the second driving roller 2.2 on the inner side wall of the belt body 2.31, so that the belt body 2.31 is meshed with the first driving roller 2.1 and the second driving roller 2.2 through the tooth surface area, thereby playing an anti-slip and meshing driving role;

[0037] The first driving roller 2.1 and the second driving roller 2.2 have the same structure. Both the first driving roller 2.1 and the second driving roller 2.2 include a roller body 4. A roller shaft rod 5 rotatably connected to the support frame 1.2 is coaxially fixed on the roller body 4. The length of the roller body 4 is the same as the width of the belt body 2.31, and both ends of each hard rod 2.32 extend out of the width side ends of the belt body 2.31.

[0038] Furthermore, a driving assembly 1.3 is installed on the frame 1.1, and the driving assembly 1.3 can realize synchronous intermittent driving of the circulating roller-belt assemblies 2 on the two supporting frames 1.2. The driving assembly 1.3 can be a servo motor, or the driving assembly 1.3 can be a driving motor. The output shaft of the driving motor is connected to the first driving roller 2.1 or the second driving roller 2.2 through an intermittent transmission mechanism. The intermittent transmission mechanism can be a groove wheel mechanism, a cam intermittent motion mechanism or an incomplete gear mechanism. The above intermittent mechanism is an existing structure and will not be described in detail. The driving assembly 1.3 can provide synchronous intermittent driving for the circulating roller-belt assemblies 2 on the two supporting frames 1.2 at the same time, and the rotating directions of the circulating roller-belt assemblies 2 on the two supporting frames 1.2 are opposite.

[0039] In actual use, the first driving roller 2.1 and the second driving roller 2.2 on the support frame 1.2 on the same side rotate synchronously in the same direction, and the moving direction of the belt body 2.31 close to the side of the tunnel space is downward, thereby driving the support plate 3.1 to move downward intermittently. It should be noted that the two circulating roller belt assemblies 2 and the lifting assembly 3 are mirror-symmetrically distributed in the vertical direction with the vertical midline of the tunnel space as the symmetry axis. The circulating roller belt assembly 2 is intermittently driven by the driving assembly 1.3. Each time the circulating roller belt assembly 2 stops rotating intermittently, there are flush support plates 3.1 on both sides of the discharge end of the conveyor belt assembly line. The support plates 3.1 on both sides can connect the paper tubes on the conveyor belt assembly line. When the circulating roller belt assembly 2 rotates intermittently again, the paper tubes on the support plates 3.1 move downward in the tunnel space along with the support plates 3.1.

[0040] In another embodiment provided by the present invention, the two ends of the support strip 3.1 are hinged to the ends of the corresponding hard rods 2.32 through a connecting rod assembly 6, and the connecting rod assembly 6 includes a mounting blind opening 6.1 opened at the end of the hard rod 2.32, and the axis of the mounting blind opening 6.1 coincides with the axis of the hard rod 2.32. A through opening 6.2 connected to the mounting blind opening 6.1 is vertically opened on the side of the hard rod 2.32, and an extension pipe rod 6.3 is movably penetrated in the through opening 6.2, and the axis of the extension pipe rod 6.3 coincides with the axis of the hard rod 2.32. The extension tube rod 6.3 is vertical, and is a hard tube structure. The extension tube rod 6.3 is located on the rod body in the installation blind hole 6.1, and is movably penetrated by an axial core rod 6.4. The axis of the axial core rod 6.4 coincides with the axis of the installation blind hole 6.1. One end of the axial core rod 6.4 is connected to the end wall of the installation blind hole 6.1. The extension tube rod 6.3 can deflect around the axial core rod 6.4 on the hard rod 2.32. The through hole 6.2 limits the deflection range of the extension tube rod 6.3. Both ends of the support strip plate 3.1 are connected to the corresponding extension tube rod 6.3.

[0041] The body contour surface of the through opening 6.2 is a rectangular structure, and the contour surface of the through opening 6.2 includes a first contour surface 6.21 and a second contour surface 6.22. The first contour surface 6.21 can provide support for the support strip plate 3.1 in a supporting state.

[0042] In actual use, when the support strip 3.1 is in the supporting state, the position where the extension tube rod 6.3 contacts the through opening 6.2 is the first contour surface 6.21 of the through opening 6.2. At this time, the first contour surface 6.21 provides support for the support strip 3.1 in the supporting state, and also limits the deflection of the support strip 3.1 toward the first contour surface 6.21. When the support strip 3.1 switches from the supporting state to the retreat state, the extension tube rod 6.3 deflects from the first contour surface 6.21 toward the second contour surface 6.22 in the through opening 6.2.

[0043] In another embodiment provided by the present invention, an axial rod 3.2 is fixed to one side of the support strip plate 3.1, the axis of the axial rod 3.2 is parallel to the length direction line of the support strip plate 3.1, both ends of the axial rod 3.2 protrude from the end of the support strip plate 3.1, the extended ends of the axial rod 3.2 are rotatably plugged into the side of the extension tube rod 6.3, the axis of the extension tube rod 6.3 is perpendicular to the axis of the axial rod 3.2, and a switching unit 7 is provided in the extension tube rod 6.3, the switching unit 7 limits the torsion of the axial rod 3.2 when the support strip plate 3.1 is in the supporting state, and the switching unit 7 loosens and releases the axial rod 3.2 when the support strip plate 3.1 switches to the retreat state;

[0044] The switching unit 7 includes a rack plate 7.1 slidably arranged inside the extension tube rod 6.3, and a through hole 7.2 is provided on the rack plate 7.1. A toothed ring 7.3 fixedly sleeved with the shaft rod 3.2 is meshed on one end side of the rack plate 7.1, and the toothed ring 7.3 is located inside the extension tube rod 6.3. The switching unit 7 also includes an insertion interface 7.4 provided on the extension tube rod 6.3, and the insertion interface 7.4 is aligned with the through hole 7.2. A plug rod 7.5 fixed to the inner side wall of the through hole 6.2 is adapted to be inserted in the insertion interface 7.4. When the support strip plate 3.1 is in a supporting state, the plug rod 7.5 extends into the insertion interface 7.4 and is inserted into the through hole 7.2.

[0045] Furthermore, a wedge-shaped portion 7.6 is provided at the insertion end of the insertion rod 7.5. When the insertion rod 7.5 is inserted into the insertion opening 7.2, the wedge-shaped portion 7.6 is pressed and contacted with the insertion opening 7.2, and the rack plate 7.1 moves along the length direction of the extension tube rod 6.3.

[0046] That is to say, when the support strip plate 3.1 enters the supporting state, that is, the extension tube rod 6.3 moves toward the first contour surface 6.21, the insertion rod 7.5 extends into the insertion interface 7.4 and plugs into the insertion hole 7.2. During this plugging process, the wedge-shaped portion 7.6 on the insertion rod 7.5 is squeezed against the edge surface of the insertion hole 7.2, thereby generating a component force on the rack plate 7.1 along the axial direction of the extension tube rod 6.3, so that the rack plate 7.1 moves along the length direction of the extension tube rod 6.3. At this time, under the action of the meshing transmission of the rack plate 7.1 and the gear ring 7.3, the shaft rod 3.2 is deflected. When the support strip plate 3.1 is in the supporting state, the plate surface of the support strip plate 3.1 is parallel to the horizontal plane, and the support strip plate 3.1 and the paper tube have the largest contact area, which has a good supporting effect and is conducive to preventing the paper tube from falling off.

[0047] Similarly, when the strip support plate 3.1 switches from the supporting state to the withdrawing state, the insertion rod 7.5 is disengaged from the insertion port 7.2 and the insertion port 7.4, so that the torsion is no longer limited, the shaft rod 3.2 is in a loose and released state, and the strip support plate 3.1 is also switched from a state parallel to the plane to a state perpendicular to the plane under the action of gravity, and the strip support plate 3.1 reduces the contact area with the paper tube, which facilitates the separation of the paper tube from the strip support plate 3.1. At the same time, the shaft rod 3.2 also drives the insertion rod 7.5 to rotate axially under the action of the gravity of the deflection of the strip support plate 3.1;

[0048] It should be noted that the insert rod 7.5 is an arc rod, the center of which is located on the axis of the core rod 6.4, and the insert rod 7.5 is actually on the first contour surface 6.21 on the inner side wall of the through hole 6.2.

[0049] In another embodiment provided by the present invention, a branch opening 8 connected to the outside is provided on the inner wall of the blind opening 6.1, the opening degree of the branch opening 8 is larger than the opening degree of the through opening 6.2, and a counterweight column 9 which can be coaxially fixed with the extension pipe rod 6.3 is inserted into the branch opening 8, and the counterweight column 9 can reduce the resistance when the support plate 3.1 switches from the supporting state to the withdrawing state.

[0050] In another embodiment provided by the present invention, a accommodating cavity 10 is provided on a contour wall of the branch opening 8 close to the first contour surface 6.21, and a sliding column 11 is provided in the accommodating cavity 10. The sliding column 11 is connected to the inner wall of the accommodating cavity 10 by a connecting line 12. When the hard rod 2.32 is located at the highest position of the belt body 2.31, the sliding column 11 extends out of the accommodating cavity 10 under the action of gravity. The extended sliding column 11 applies a driving force to the side of the counterweight column 9, thereby providing assistance for the extension tube rod 6.3 to move in the direction of the supporting state, which is beneficial for the support plate 3.1 to switch from the withdrawal state to the supporting state.

[0051] In summary, the firework paper tube stacking device provided by the present invention transports the connected paper tube downwards through the lifting assembly on the circulating roller belt assembly. When the lifting assembly is subjected to the upward force of the stacked paper tubes during the descending process, the lifting assembly deflects upwards, that is, the supporting strip plate 3.1 deflects upwards around the hard rod 2.32 toward the transmission belt 2.3 through the connecting rod assembly 6, so that the lifting assembly is separated from the paper tube, so that the connected paper tube is stacked on the stacked paper tubes. The paper tube is always kept in a lifting state during the whole moving process, and there is no need to clamp the firework paper tubes.

[0052] In addition, the support plate 3.1 on the lifting component 3 also has two forms. When the lifting component 3 is in the lifting state, one is that the board surface of the support plate 3.1 is parallel to the horizontal plane, and the contact area between the support plate 3.1 and the paper tube is the largest, which helps to prevent the paper tube from falling when it moves downward; the second is that the board surface of the support plate 3.1 is perpendicular to the horizontal plane. At this time, the contact area with the paper tube is the smallest, and the contact position is close to the end position of the paper tube, which facilitates the separation of the paper tube and the support plate 3.1.

[0053] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions 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 paper tube stacking device, characterized in that: It comprises a portal frame assembly (1), which comprises a frame frame (1.1) located above a conveyor belt assembly line, and two support frames (1.2) located on both sides of the conveyor belt assembly line are fixed to the bottom of the frame frame (1.1); Two circulating roller belt assemblies (2), comprising a first driving roller (2.1) and a second driving roller (2.2) rotatably mounted on each support frame (1.2), the first driving roller (2.1) and the second driving roller (2.2) being vertically connected via a transmission belt (2.3), and the spacing between the transmission belts (2.3) on the two support frames (1.2) forming a laneway space for accommodating the revolving frame; The lifting assembly (3) comprises a plurality of support strips (3.1) hingedly mounted on the outer surface of the transmission belt (2.3). The support strips (3.1) on two adjacent transmission belts (2.3) can form a supporting state in the tunnel space for connecting paper tubes on the conveyor belt assembly line. The support strips (3.1) in the supporting state can intermittently convey the connected paper tubes downward in the tunnel space. The support strips (3.1) also have a retreat state in the tunnel space for canceling the supporting force on the paper tubes. When the bottom of the support strips (3.1) is subjected to the force of the stacked paper tubes, it switches from the supporting state to the retreat state, and the connected paper tubes are stacked and stacked on the stacked paper tubes.

2. A firework paper tube stacking device according to claim 1, characterized in that: The first driving roller (2.1) and the second driving roller (2.2) are both gear rollers rotatably connected to the support frame (1.2); the first driving roller (2.1) and the second driving roller (2.2) are distributed in parallel along the vertical direction.

3. A firework paper tube stacking device according to claim 2, characterized in that: The transmission belt (2.3) comprises a belt body (2.31), on the inner side wall of which a plurality of evenly distributed hard rods (2.32) are fixed, and each of the hard rods (2.32) forms a tooth surface portion on the inner side wall of the belt body (2.31) that meshes with a first drive roller (2.1) and a second drive roller (2.2).

4. A firework paper tube stacking device according to claim 3, characterized in that: Both ends of each of the hard rods (2.32) extend out from the width side ends of the belt body (2.31); the first drive roller (2.1) and the second drive roller (2.2) have the same structure; both the first drive roller (2.1) and the second drive roller (2.2) include a roller body (4); a roller shaft rod (5) is coaxially fixed through the roller body (4) and is rotatably connected to the support frame (1.2); the length of the roller body (4) is the same as the width of the belt body (2.31).

5. A firework paper tube stacking device according to claim 4, characterized in that: The two ends of the support strip plate (3.1) are hinged to the ends of the corresponding hard rods (2.32) through a connecting rod assembly (6); the connecting rod assembly (6) comprises a mounting blind opening (6.1) provided at the end of the hard rod (2.32); a through opening (6.2) connected to the mounting blind opening (6.1) is vertically provided on the side of the hard rod (2.32); an extension tube rod (6.3) is movably penetrated in the through opening (6.2); an axial core rod (6.4) is movably penetrated on the rod body of the extension tube rod (6.3) located in the mounting blind opening (6.1); one end of the axial core rod (6.4) is connected to the end wall of the mounting blind opening (6.1); and the two ends of the support strip plate (3.1) are connected to the corresponding extension tube rod (6.3).

6. A firework paper tube stacking device according to claim 5, characterized in that: The contour surface of the through opening (6.2) comprises a first contour surface (6.21) and a second contour surface (6.22), and the first contour surface (6.21) can provide supporting force for the support strip plate (3.1) in a supporting state.

7. A firework paper tube stacking device according to claim 6, characterized in that: An axial rod (3.2) is fixed to one side of the support strip (3.1), both ends of the axial rod (3.2) protrude from the end of the support strip (3.1), and the protruding ends of the axial rod (3.2) are rotatably plugged into the side of the extension tube (6.3), and a switching unit (7) is provided in the extension tube (6.3), and the switching unit (7) limits the torsion of the axial rod (3.2) when the support strip (3.1) is in a supporting state, and the switching unit (7) loosens and releases the axial rod (3.2) when the support strip (3.1) switches to a retreating state.

8. A firework paper tube stacking device according to claim 7, characterized in that: The switching unit (7) comprises a rack plate (7.1) slidably arranged inside the extension tube rod (6.3), the rack plate (7.1) being provided with an insertion opening (7.2), one end side surface of the rack plate (7.1) being meshed with a gear ring (7.3) fixedly sleeved with the shaft rod (3.2), the switching unit (7) further comprises an insertion interface (7.4) provided on the extension tube rod (6.3), an insertion rod (7.5) fixed with the inner side wall of the through opening (6.2) being adapted to be inserted in the insertion interface (7.4), and when the support strip plate (3.1) is in a supporting state, the insertion rod (7.5) extends into the insertion interface (7.4) and is inserted into the insertion opening (7.2).

9. A firework paper tube stacking device according to claim 8, characterized in that: The insertion end of the insertion rod (7.5) is provided with a wedge-shaped portion (7.6), and when the insertion rod (7.5) is inserted into the insertion opening (7.2), the wedge-shaped portion (7.6) is pressed and contacted with the insertion opening (7.2), and the rack plate (7.1) moves along the length direction of the extension tube rod (6.3).

10. A firework paper tube stacking device according to claim 9, characterized in that: A driving assembly (1.3) is installed on the frame frame (1.1), and the driving assembly (1.3) can simultaneously provide synchronous intermittent driving for the circulating roller belt assemblies (2) on the two support frames (1.2), and the rotation directions of the circulating roller belt assemblies (2) on the two support frames (1.2) are opposite.

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