CN115593736A

CN115593736A - Mounting leather device for combined fireworks

Info

Publication number: CN115593736A
Application number: CN202211259385.4A
Authority: CN
Inventors: 余汝道; 甘本红
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-01-13

Abstract

The invention discloses a mount leather device for combined fireworks, which comprises a stepping feeding mechanism, wherein the stepping feeding mechanism drives the combined fireworks to sequentially pass through a first gluing mechanism and a top and bottom mounting and coating mechanism, then enter a posture converter to be converted into a vertical state, and then enter a mounting and coating mechanism. The stepping feeding mechanism comprises a slide way and a pressing wheel group, and the combined fireworks are driven to move forwards along the slide way in a stepping way by a telescopic shifting piece; the first glue applying mechanism and the top and bottom poster coating mechanism apply glue to two ends of the combined firework in the horizontal state at the same time and complete the coating of the top poster and the bottom poster; the enclosing and covering mechanism comprises an enclosing and conveying assembly, a negative pressure adsorption vertical plate, a movable sealing piece, a fixed sealing piece and a swinging sealing piece. The work is reliable, the mechanism is simple, the flow is compact, and the work is smooth; the adhesive tape is not needed to be used for assisting the mount skin; can be adapted to various specifications of combined firework mount skins; the feeding can be completed without mutual pushing among the combined fireworks; the applicability of the equipment is effectively improved.

Description

Mounting leather device for combined fireworks

Technical Field

The invention relates to packaging equipment, in particular to a back leather device for combined fireworks.

Background

After the combined firework product is formed, the product needs to be packaged (inner package, also commonly called back skin in the industry), that is, plastic, paper and the like with good moisture resistance are adhered on the surface of the product for closed packaging. The packaging material is generally called poster paper in the industry, and the poster paper can be divided into three types according to the pasting position on the combined firework product: the top poster is stuck on the top surface of the product, the bottom poster is stuck on the bottom surface of the product, and the surrounding poster is stuck on the periphery of the side surface of the product. In the processing, the packaging of the bottom poster and the top poster is firstly carried out, generally, the peripheral parts of the bottom poster and the top poster, which are larger than the product, on the periphery are pasted on the four side walls of the product, then the surrounding poster is pasted and packaged around the whole side surface of the product, and the surrounding poster covers the pasting periphery of the bottom poster and the top poster on the side walls of the product.

In the prior art, some devices have been developed in the industry in an attempt to achieve automated processing of poster paper packaging:

for example, a firework packaging device disclosed in the utility model patent with the publication number of CN 206944837U,

The invention patent document with application publication number CN109059677A discloses a side wall paper packaging structure of a combined firework full-automatic packaging machine,

The invention patent document with the application publication number of CN109204928A discloses an upper and lower paper pasting structure of a combined firework full-automatic packaging machine,

The invention patent document with the application publication number of CN109264077A discloses a full-automatic combined firework packaging machine,

A Chinese utility model patent document with the publication number of CN 209485161U discloses a barrel packing machine for producing fireworks and firecrackers,

Chinese patent application publication No. CN 113734518A discloses a tunnel type combined firework poster paper wrapping device.

The main drawback of the prior art is that the working reliability is low, and the popularization and the use are difficult.

Disclosure of Invention

In order to solve the problems, the invention provides a back leather device for combined fireworks, which effectively improves the working reliability. In order to solve the technical problem, the invention adopts the technical scheme that the back leather device of the combined firework is characterized by comprising a stepping feeding mechanism, wherein the stepping feeding mechanism drives the combined firework to sequentially pass through a first gluing mechanism and a top and bottom back covering mechanism, then enter a posture converter to be converted into a vertical state, and then enter a surrounding covering mechanism, wherein,

the step-type feeding mechanism comprises a slideway for supporting the combined fireworks in a horizontal state, and a pressing wheel set for the combined fireworks is correspondingly arranged above the slideway; the slide way is provided with a poking piece for driving the combined fireworks to move forwards along the slide way in a stepping way, the poking piece is provided with a telescopic assembly, and the poking piece is connected with a stepping driver; the shifting piece drives the combined fireworks to step when extending out, and resets to the starting point of the step when retracting;

the glue applying head of the first glue applying mechanism rotates around the glue applying part of the combined firework in the horizontal state to complete glue applying work;

the top and bottom sign and coating mechanism comprises two frame bodies respectively positioned on the side surfaces of two ends of the combined firework in a horizontal state, a top sign roll and an uncoiling assembly thereof, a cutter assembly, a bottom sign roll and an uncoiling assembly thereof, and a cutter assembly, wherein the strip-shaped top sign or bottom sign is bound into a roll to form the top/bottom sign roll,

the uncoiling component pulls the top/bottom signboard to pass through the space between the combined firework and the frame body; the two frame bodies move towards the bottom end or the top end of the combined firework respectively and simultaneously complete the coating of the top poster and the bottom poster; when the two frame bodies move towards the combined fireworks, the cutter assembly cuts off the top signboard and the bottom signboard;

the posture converter comprises a box body for loading combined fireworks, the box body is provided with a feeding opening and a discharging opening, the box body can rotate by 90 degrees forwards and backwards so as to switch between a feeding state and a discharging state, the feeding opening of the box body faces to the slideway and is connected with the slideway in the feeding state, and the combined fireworks in a horizontal state enter the box body from the feeding opening; the box body is rotated by 90 degrees to be in a discharging state, so that the combined fireworks are converted into vertical postures, and the connecting material pusher pushes the combined fireworks in the vertical postures to enter a connecting station from the discharging opening;

the enclosing and covering mechanism comprises an enclosing and conveying assembly and a negative pressure adsorption vertical plate, the enclosing and conveying assembly comprises a tray, and the enclosing and conveying assembly is pre-cut and is stacked in the tray for later use; the lifting type movable sucker conveys the enclosure in the tray to a conveying belt, a second glue applying mechanism is arranged above the conveying belt, and two negative pressure vertical plates and a coating station inlet are connected below the tail end of the conveying belt; the coating station inlet is positioned between the two negative pressure vertical plates; a paper pressing piece is arranged on the working surface corresponding to each negative pressure vertical plate, and the paper pressing piece moves towards the negative pressure vertical plate in a reciprocating linear mode; the cladding station comprises a movable sealing piece and a fixed sealing piece which are respectively positioned at two sides of the combined firework, and a swinging sealing piece is arranged beside the fixed sealing piece;

the enclosure is conveyed to the two negative pressure vertical plates and the coating station inlet by the conveying belt to be in a vertical state, and the paper pressing piece moves towards the negative pressure vertical plates and presses the enclosure; the first feeder of the enclosing sign pushes the combined fireworks on the connecting station in the straight direction to enter the covering station through the covering station inlet, and the enclosing sign is pulled to be covered on three sides of the combined fireworks during entering; the movable sealing piece moves to push the first end of the enclosing sign to be coated on the fourth side face of the combined firework; when the second feeder is pushed to the discharge passage, the fixed sealing piece and the swing sealing piece overlap the second end of the enclosing device on the first end to complete sealing.

The movable sealing piece, the fixed sealing piece and the swinging sealing piece can be rubber strips, plate bodies or roller bodies with the length corresponding to the enclosing width, and are particularly elastic and/or rotatable; the preferred working surface has an elastic roller body (such as a rubber roller), and two ends of the roller body are provided with rotating shafts.

Preferably, at least one presses paper and is equipped with translation driving piece, and translation driving piece drives and presses paper along the working face reciprocating linear motion of negative pressure riser. The surrounding exercise attached to the negative pressure vertical plate is smoothed.

Preferably, transition rollers are arranged on two sides of the inlet of the coating station. The working reliability and the coating effect are improved. The transition roller can also be a rubber strip, a plate body and the like with the length corresponding to the surrounding width.

Preferably, the fixed sealing piece and the swinging sealing piece are positioned on one side of an inlet of the discharging channel, and a transition roller is correspondingly arranged on the other side of the inlet of the discharging channel. The working reliability and the coating effect are improved.

Preferably, the pivot at the both ends of swing sealing member is installed in the swing guide slot, the free end of pivot articulated swing arm, the articulated pivot of fixing sealing member of root of swing arm, the one end of spring is connected at the swing arm middle part, and the frame is connected to the other end of spring. The swing sealing piece can swing around the fixed sealing piece, elastic pressure is applied to the side face of the combined firework through the spring, and the combined firework is compacted to be in adhesive connection with the surrounding sign when passing through.

Preferably, the puck set is provided with a height adjustment assembly. Thereby adjust the height between slide and the pinch roller group, adapt to the combination fireworks of different specifications. And pressure adjusting components are arranged on the pinch rollers corresponding to the station of the first glue applying mechanism and the station of the top and bottom covering and coating mechanism. Preferably, a follow-up fixed paper piece is arranged behind the cladding station, the moving direction of the follow-up fixed paper piece is opposite to that of the first enclosing and registering pusher, the follow-up fixed paper piece extends out of the inlet of the cladding station and is propped against the back of the combined firework, and the follow-up fixed paper piece retracts synchronously when the first enclosing and registering pusher pushes forwards.

Preferably, the frame body consists of four rotating rollers, the two ends of each rotating roller are provided with circular truncated cone-shaped end parts with gradually enlarged diameters, and the circular truncated cone-shaped end parts of the two adjacent rotating rollers are spliced to enable four corners of the inner ring of the frame body to be in a circular angle shape. When the frame body presses the poster paper to be close to the combined firework, the whole angular speed is the same when the roller body rotates, but the linear speed of the circular truncated cone-shaped end part is increased along with the increase of the diameter; the inner circle fillet of the frame body formed by the circular truncated cone-shaped end part can pull the poster paper to form fine wrinkles to be combined and adhered to the fillet part of the combined firework in the rotating process, so that the larger wrinkles and the bulges are avoided, the coating effect on the fillet of the combined firework is effectively improved, and the packaging quality is improved. Furthermore, the periphery of the circular truncated cone-shaped end part is provided with a chamfer part; two adjacent rotary rollers are spliced through the chamfer parts, so that four corners of the inner ring of the frame body are in a circular angle shape. Effectively enlarge the thickness of the splicing part to make the splicing part more durable.

Preferably, the glue applying head of the first glue applying mechanism is respectively connected with a storage container for pressure gas and glue through a pipeline, a rotary sleeve is arranged on the pipeline, and the rotary sleeve comprises an outer pipe and an inner pipe fixedly sleeved in the outer pipe; a gap between the inner wall of the outer pipe and the outer wall of the inner pipe forms a pressure gas channel, and an inner cavity of the inner pipe forms a glue channel; the wall of the outer pipe is provided with an inlet and an outlet of a pressure gas channel, the inlet is connected with a storage container of pressure gas through a first rotary sealing joint, and the outlet is communicated with a rotating element; the inlet end of the inner tube is connected with a glue storage container through a second rotary sealing joint, and the outlet end of the inner tube is communicated with the rotating element. The winding caused by the rotation of the conveying pipeline of the pressure gas and the glue can be effectively avoided.

Furthermore, the rotating sleeve is driven to rotate by a driving wheel fixedly sleeved on the outer wall of the outer pipe. Compact structure and reliable operation.

Further, the glue applying head is connected with the rotary sleeve through a crank arm. So that both rotate in synchronism. Further, the crank arm has a turning radius adjusting assembly. So as to adjust the rotating radius of the glue applying head according to the specification of the combined firework.

Further, the rotating sleeve is mounted on the elevator frame through a bearing. The adjustment is convenient.

The invention has the advantages of reliable work, simple mechanism, compact flow and smooth work; meanwhile, the device does not need an adhesive tape for assisting mount leather; the combined firework mount skin can be adjusted according to the specifications of the combined fireworks to adapt to various specifications; the feeding can be completed without mutual pushing among the combined fireworks; the applicability of the equipment is effectively improved.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Unless defined otherwise, 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 belongs. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Drawings

Example 1 attached figure:

FIG. 1 is a first perspective view of the whole machine;

FIG. 2 is a second perspective view of the entire device;

FIG. 3 is a schematic structural diagram of the combined firework conveying mechanism;

FIG. 4 is a schematic structural view of the toggle member at the stepping end point;

FIG. 5 is a schematic structural view of the toggle member at the start of stepping;

FIG. 6 is a schematic structural view of a rotary sleeve of the glue applying mechanism;

FIG. 7 is a schematic view (front view) of the internal principle structure of the glue applying mechanism;

FIG. 8 is a schematic (side view) of the trajectory of the applicator head;

FIG. 9 is a schematic view of the overall structure of a sizing mechanism;

FIG. 10 is a schematic structural view of a top and bottom cladding mechanism;

FIG. 11 is a schematic view of a partial configuration of an attitude converter and enclosure cladding mechanism;

FIG. 12 is a first perspective view of the enclosure mechanism;

FIG. 13 is an enlarged partial schematic view of FIG. 12;

FIG. 14 is a second perspective view of the enclosure mechanism;

FIG. 15 is an enlarged, fragmentary, schematic view of FIG. 3, showing the primary reaction of the construction of the moving closure, the stationary closure and the oscillating closure;

FIG. 16 is a first schematic top view of the operation of the wrapping station;

FIG. 17 is a schematic top view of the working principle of the cladding station;

FIG. 18 is a schematic top view of the working principle of the cladding station;

FIG. 19 is a schematic top view of the working principle of the wrapping station;

example 2 accompanying drawings:

FIG. 20 is a schematic view of the operation of the housing of the top and bottom cladding mechanism;

FIG. 21 is a schematic view showing a first principle of a matching structure of the frame body and the combined firework;

fig. 22 is a schematic diagram of a matching structure principle of the frame body and the combined firework.

Detailed Description

Example 1: referring to fig. 1-2, a specific configuration of the present invention is reflected. The mount leather device of the combined firework comprises a stepping feeding mechanism 1, the stepping feeding mechanism 1 drives the combined firework 2 to sequentially pass through a first gluing mechanism 3 and a top and bottom covering mechanism 4, then the combined firework enters a posture converter 5 to be converted into a vertical state, and then enters a covering mechanism 6,

referring to fig. 3, the step-by-step feeding mechanism 1 includes a slideway 101 for supporting the combined fireworks 2 in a lying state, and a pinch roller set 102 for the combined fireworks 2 is correspondingly arranged above the slideway 101; in the illustrated example, puck set 102 is provided with a height adjustment assembly: the height between the slide way 101 and the pinch roller set 102 is adjusted through the matching of the suspension screw 103 and the screw hole on the hanger 104, so that the combined fireworks with different specifications are adapted. The pressure rollers corresponding to the station of the first gluing mechanism 3 and the station of the top and bottom covering mechanism 6 are provided with pressure adjusting bolts 105, and the pressure adjusting bolts 105 adjust the lower pressure degree of the pressure rollers through V-shaped swing arms so as to position the combined fireworks 2.

Referring to fig. 4 and 5, in an example, the start station of the chute 101 is connected to the feeding station 106, and the feeding cylinder 114 pushes the combined fireworks 2 on the feeding station 106 to the start station of the chute 101. The feed station 106 engages a firework conveyor (not shown).

The slide way 101 is provided with three toggle pieces 107 for driving the combined fireworks 2 to move forwards along the slide way 101 in a stepping manner, the toggle pieces 107 are provided with telescopic cylinders 109, and the toggle pieces 107 are connected with a stepping driver 108 formed by long-range cylinders; the shifting piece 107 drives the combined firework 2 to step when extending upwards, and resets to a stepping starting point when retracting downwards.

Three stirring members 107 are installed on a base plate 110 through a telescopic cylinder 109, the base plate 110 is connected with a stepping driver 108, the three stirring members 107 are driven to step right once and reset left once between all stations, the circulation work is carried out, the combined fireworks 2 of all stations are pushed to gradually and intermittently advance along a guide rail 111, and the combined fireworks sequentially enter a box body 501 from a starting station, a glue applying station and a top-bottom covering station of the slide 101. The telescopic cylinder 109 is connected with the poking piece 107 and drives the poking piece 107 to lift, the poking piece 107 extends upwards to be higher than the slide way 101 when the poking piece 107 ascends, and the combined fireworks 2 can be poked when the poking piece 107 steps; when the combined firework 2 descends, the shifting piece 107 retracts downwards to be lower than the slide way 101, and when the shifting piece 107 resets, the combined firework 2 cannot be shifted.

The glue applying head 304 of the first glue applying mechanism 3 rotates around the glue applying part of the combined firework 2 in the horizontal lying state to complete glue applying work.

Referring to fig. 6-9, in the illustrated example, applicator head 304 is connected to a glue reservoir (not shown) and a pressurized air source (not shown) via conduits, respectively. The pipeline is provided with a rotating sleeve 301, the rotating sleeve 301 comprises an outer pipe 3103 and an inner pipe 3101 fixedly sleeved in the outer pipe, two ports of the outer pipe 3103 are fixedly connected with the side wall of the inner pipe 3101 in a sealing way, and a gap 3102 between the inner wall of the outer pipe 3103 and the outer wall of the inner pipe 3101 forms a first fluid channel; the lumen 3106 of the inner tube 3101 constitutes a second fluid channel.

The outer tube 3103 has an inlet 3104 and an outlet 3107 for the first fluid passage on its side wall, the outlet 3107 being in communication with the applicator head 304 via the first conduit 317. The inlet 3104 is connected to a pressurized gas source through a first rotary sealing joint 302: the first rotary sealing joint 302 is sleeved on the side wall of the outer pipe 3103 through a first bearing 3201, an annular airtight channel formed by sealing rings 3202 with two closed ends is arranged in the first rotary sealing joint 302, and a pressure air source is communicated with the inlet 3104 through a port 3203 and the airtight channel of the first rotary sealing joint 302. So that the rotating first fluid passage is continuously supplied with pressurized gas.

The inlet end 3105 of the inner tube 3101 is connected to a glue reservoir through the second rotary seal joint 303 so that glue is continuously supplied to the rotary second fluid passageway. An outlet end 3108 of inner tube 3101 is in communication with applicator head 304 via second conduit 318. The glue and the pressure gas are mixed in the inner cavity of the glue application head 304 and are sprayed on the combined firework 2.

In the illustrated example, the rotating sleeve 301 is rotated by a drive wheel 309 fixedly secured to the outer wall of the outer tube 3103. The driving wheel 309 is driven by a motor 313 to rotate sequentially through a transmission shaft 312, a belt pulley 311 and a transmission belt 310.

In the illustrated example, the applicator head 304 is coupled to the rotating sleeve 301 by a crank arm 316. So that both rotate in synchronism. The crank arm 316 has a turning radius adjustment assembly, which in the illustrated example is configured to: the two connecting pieces are connected through the waist-shaped groove and the bolt to adjust the connecting position, so that the combined length of the two connecting pieces is shortened/lengthened. So as to adjust the radius of rotation of the applicator head 304 according to the specification of the combined firework 2.

The rotating sleeve 301 is bearing mounted on the elevator frame 308 for easy adjustment. The structure of the elevator frame 308 in the example is: comprises a base plate 319, the base plate 319 is arranged on a lifting guide rod through a slide block 315; the base plate 319 is further connected to a lifting screw (not shown), and the lifting screw is rotated by operating the handwheel 314 to drive the base plate 319 to move up and down along the lifting guide rod. The rotary sleeve 301 is mounted on the base plate 319 through a second bearing 316, and a motor 313, a transmission shaft 312, a belt wheel 311, a transmission belt 310, a crank arm 316, an applicator head 304 and the like connected with the rotary sleeve 301 are also connected on the base plate 319, and the whole body is lifted and lowered along with the base plate 319.

In the example, two sets of the applicator heads and the rotating sleeves thereof are oppositely arranged by taking the position of the combined firework 2 as the center. And simultaneously finishing the gluing work of the top poster and the bottom poster.

As shown in fig. 2 and 10, the top and bottom covering mechanism 4 in this example comprises two frames respectively located at two side surfaces of the horizontal combined firework 2, and the frames are composed of four rubber rollers 401 and four mount wheels 402 located around the combined firework 2. The frame is provided with a cutter assembly 403. The top or bottom elongated roll is wound to form a top roll 404 and a bottom roll 405.

The uncoiling component pulls the top signboard or the bottom signboard to pass through the space between the combined firework 2 and the frame body; the two frame bodies move towards the bottom end or the top end of the combined firework 2 respectively to simultaneously complete the coating of the top poster and the bottom poster; when the two frames move towards the combined firework 2, the cutter assembly 403 cuts off the top and bottom signs; when the combined firework 2 enters the inner ring of the frame body, the rubber roller 401 and the mount angle wheel 402 of the frame body coat the cut poster paper on the combined firework 2.

As shown in fig. 2 and 11, the posture converter 5 includes a box 501 for loading the combined fireworks 2, the box 501 has a feeding opening and a discharging opening, a backboard 502 fixedly connected with a rotating shaft 503 of the box 501 is pulled by a box cylinder 504 to realize positive and negative rotation for 90 degrees, thereby switching between the feeding state and the discharging state: the feeding opening of the box body 501 faces the slideway 101 and is connected with the slideway 101 in the feeding state, and the combined fireworks 2 in the horizontal state enter the box body 501 from the feeding opening; the box body 501 rotates 90 degrees to be in a discharging state, so that the combined fireworks 2 are converted into vertical postures, and the linking pusher 505 formed by the air cylinder pushes the combined fireworks 2 in the vertical postures to enter the linking station 507 from the discharging opening.

As shown in fig. 3, 11-19, the envelope conveying assembly of the envelope covering mechanism 6 comprises a tray 601, and the envelope 7 which is cut in advance is stacked in the tray 601 for standby. The corresponding sucking disc that sets up in tray 601 top (not shown in the figure), the horizontal cylinder 603 of sucking disc drives the translation from beginning to end by the sucking disc, and sucking disc mounting bracket 602 is driven by sucking disc lift cylinder 604 and goes up and down, send 7 to conveyer belt 607 with enclosing in the tray 601 on.

The conveyer belt 607 top is equipped with second sizing mechanism: the glue applying device comprises a glue applying head mounting rack 605, wherein the glue applying head mounting rack 605 is connected with a glue applying head cylinder 606 and linearly reciprocates along a conveying belt to apply glue to a fence 7 on the conveying belt 607; a glue reservoir 608 is included for supplying glue to the applicator head. The conveyor 607 may be provided with a telescopic stopper. The enclosure was paused to facilitate sizing.

The enclosure transport assembly and the second glue applicator mechanism are mounted on a lifting bracket 610. The overall height can be adjusted according to the specification of the combined fireworks.

The tail end of the conveyor belt 607 is connected with the two negative pressure vertical plates 611 and the coating station inlet 616 below through a paper passing gap 609 at the corner; a coating station inlet 609 is positioned between the two negative pressure vertical plates 608; the conveyor belt 607 of the descending part is provided with a plurality of paper protection telescopic rods 613, and the paper protection telescopic rods 613 extend out of the protection feeding enclosure when the enclosure descends, and retract after the enclosure descends in place, so that the enclosure 7 corner descends more smoothly. The conveyor 607 may also have surrounding rollers 612.

A paper pressing piece 614 is arranged on the working surface corresponding to each negative pressure vertical plate 611, a paper pressing roller 619 is arranged on one side of the paper pressing piece 614, and a paper pressing cylinder 615 drives the paper pressing piece 614 to move linearly towards the negative pressure vertical plate 611 in a reciprocating mode; in the example, the right paper pressing member 614 is provided with a paper pressing translation cylinder 620 to drive the paper pressing member 614 to reciprocate linearly along the working surface of the negative pressure vertical plate 611. The surrounding sign 7 attached to the negative pressure vertical plate 611 is subjected to a flattening effect.

The negative pressure vertical plate 611 is provided with a monitoring probe 618 and a corresponding monitoring hole 617, and the monitoring hole 617 is blocked to generate a signal after the enclosure 7 is in place.

In an example, the movable sealing piece, the fixed sealing piece and the swinging sealing piece are rubber covered rollers with elastic working faces, and rotating shafts are arranged at two ends of the roller body. The coating station comprises a movable sealing roller 621 and a fixed sealing roller 622 which are respectively positioned at two sides of the combined firework 2, and a swinging sealing roller 623 is arranged beside the fixed sealing roller 622. A cylinder driven follower paper fixing member 636 is arranged behind the cladding station. The moving direction of the follow-up paper fixing piece 636 is opposite to that of the surrounding first material pushing device 631, the follow-up paper fixing piece 636 extends out of the inlet of the cladding station and is pressed against the rear surface of the combined firework 2, and the follow-up paper fixing piece 636 retracts synchronously when the surrounding first material pushing device 631 pushes forwards, so that the surrounding movement process is not disordered.

First transition rollers 624 are arranged on two sides of the coating station inlet 616; the fixed sealing roller 622 and the swing sealing roller 623 are positioned at one side of the inlet of the discharge channel 625, and a second transition roller 626 is correspondingly arranged at the other side of the inlet of the discharge channel 625. The working reliability and the cladding effect are improved.

The rotating shafts 627 at two ends of the swing sealing roller 623 are arranged in the swing guide groove 628, the rotating shafts 627 are hinged with the free end of a swing arm 629, the root of the swing arm 629 is hinged with the rotating shaft of the fixed sealing roller 622, the middle part of the swing arm 629 is connected with one end of a spring 630, and the other end of the spring 630 is connected with the frame. So that the swing sealing roller 623 can swing around the fixed sealing roller 622, and apply elastic pressure to the side of the combined firework 2 through the spring 630, and compact the adhesive connection between the surrounding sign 7 and the combined firework 2 when the combined firework 2 passes through. Before the swing sealing roller 623 swings, the functions of positioning the combined fireworks 2 and enclosing the poster 7 are achieved.

The conveyer belt 607 conveys the enclosure 7 to the two negative pressure vertical plates 611 and the coating station inlet 616 to be in a vertical state, and the paper pressing piece 614 moves towards the negative pressure vertical plates 611 and presses on the enclosure 7; the first pusher 631 of enclosing sign formed by the cylinder and the push-pull head pushes the combined firework 2 on the joining station 507 through the cladding station inlet 616 in the vertical direction, and the combined firework 2 is positioned by the positioning cylinder 636 after entering the cladding station.

When the combined firework 2 with the surrounding sign 7 enters the cladding station, the paper pressing piece 614 is reset to be separated from the contact with the surrounding sign 7, and the combined firework 2 pulls the surrounding sign 7 to be clad on three sides of the combined firework 2; the moving roller cylinder 632 drives the moving sealing roller 621 to move, so as to push the first end 701 of the enclosing sign 7 to be coated on the fourth side surface of the combined firework 2; then, when the enclosing and covering second pusher 634 formed by the air cylinder transversely pushes the combined fireworks 2 on the covering station to the discharge channel 625, the fixed sealing roller 622 covers and overlaps the second end 702 of the enclosing and covering 7 on the first end 701 to complete the sealing. Two sides of the discharging channel 625 are provided with blocking bars 637. The second feeder 634 can be provided with a pressing element to avoid the disorder of the movement of the surround of the combined firework 2.

Thus completing the top and bottom and back packaging of the combined firework 2.

Example 2: referring to fig. 20 to 22, the difference from embodiment 1 is that the frame structure of the top and bottom cladding mechanism is different.

In the example, the frame body is composed of four rotating rollers 803, two ends of each rotating roller 803 are provided with truncated cone-shaped end portions 804 with gradually enlarged diameters, and the four corners of the inner circle of the frame body are in a shape of a circular horn by splicing the two adjacent truncated cone-shaped end portions 804 of the rotating rollers, so that the four corners of the inner circle of the frame body correspond to the rounded corners 806 of the combined firework 801. In this example, a chamfered portion 805 is provided on the outer periphery of the circular truncated cone-shaped end 804; two adjacent rollers 803 are spliced by a chamfer 805 so that four corners of the inner ring of the frame body are rounded.

As shown in the figure, in the work of coating the poster paper 802, glue is firstly applied to the side walls around the combined fireworks 801; the poster 802 is positioned between the combined fireworks 801 and the frame, and the frame moves towards the poster 802 as indicated by the arrow under the push of a driving mechanism (not shown in the figure); in other embodiments, the movement of the fireworks toward the poster 802 may also be combined; the side walls of the combined fireworks can be placed on the conveyor belt, the two frame bodies are respectively positioned on two sides of the combined fireworks, and the two frame bodies respectively move towards the bottom end or the top end of the combined fireworks to simultaneously complete the coating of the top poster and the bottom poster.

In this example, the frame moves towards the poster paper 802 until it nests around the side wall of the combined firework 801; the poster paper 802 is coated on the top of the combined firework 801, and the peripheral part of the poster paper 802, which is larger than the periphery of the combined firework 801, is adhered to the side wall of the combined firework 801.

In the process that the frame body presses the poster paper 802 to be close to the side wall of the combined firework 801, the four roller bodies 803 rotate based on the friction force between the poster paper and the side wall of the firework, and as the integral angular velocity is the same when the roller bodies 803 rotate, but the linear velocity of the circular truncated cone-shaped end 804 is increased along with the increase of the diameter, and the linear velocity of the splicing seam of the two chamfered parts 805 is the maximum, the friction dragging force applied to the corresponding corner part 806 of the poster paper 802 is the maximum, and the friction dragging force is gradually reduced towards two sides by taking the splicing seam as the center; therefore, the inner circle fillet formed by the circular truncated cone-shaped end 804 can pull the corresponding part of the poster paper 802 to be uniformly distributed during rotation, so that fine wrinkles are formed and combined to be adhered to the fillet part 806 of the combined firework 801, the generation of large wrinkles or bulges is avoided, and the coating effect of the fillet part 806 of the combined firework 801 is effectively improved.

The embodiments of the invention disclosed above are intended merely to aid in the explanation of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in detail in order to best explain the principles of the invention and the practical application, and to thereby enable others skilled in the art to best understand the invention for and utilize the invention. This invention can be practiced otherwise than as specifically described herein and those skilled in the art can make similar modifications without departing from the spirit and scope of the present invention and it is intended that the present invention be limited only by the claims and their full scope and equivalents rather than by the specific embodiments disclosed.

Claims

1. A mount leather device of combined fireworks is characterized by comprising a stepping feeding mechanism, wherein the stepping feeding mechanism drives the combined fireworks to sequentially pass through a first gluing mechanism and a top and bottom mounting and coating mechanism, then enter a posture converter to be converted into a vertical state, and then enter a mounting and coating mechanism, wherein,

the step-by-step feeding mechanism comprises a slideway for supporting the combined fireworks in a horizontal state, and a pressing wheel set for the combined fireworks is correspondingly arranged above the slideway; the slide way is provided with a poking piece for driving the combined fireworks to move forwards along the slide way in a stepping way, the poking piece is provided with a telescopic assembly, and the poking piece is connected with a stepping driver; the shifting piece drives the combined fireworks to step when extending out, and resets to the starting point of the step when retracting;

the uncoiling component pulls the top/bottom signboard to pass through the space between the combined firework and the frame body; the two frame bodies move towards the bottom end or the top end of the combined firework respectively and simultaneously complete the coating of the top signboard and the bottom signboard; when the two frame bodies move towards the combined fireworks, the cutter assembly cuts off the top signboard and the bottom signboard;

the posture converter comprises a box body for loading combined fireworks, the box body is provided with a feeding opening and a discharging opening, the box body can rotate by 90 degrees in a forward and reverse direction so as to switch between a feeding state and a discharging state, the feeding opening of the box body faces the slideway and is connected with the slideway in the feeding state, and the combined fireworks in a lying state enter the box body from the feeding opening; the box body is rotated by 90 degrees to be in a discharging state, so that the combined fireworks are converted into vertical postures, and the connecting material pusher pushes the combined fireworks in the vertical postures to enter a connecting station from the discharging opening;

the enclosure is conveyed to the two negative pressure vertical plates and the coating station inlet by the conveying belt to be in a vertical state, and the paper pressing piece moves towards the negative pressure vertical plates and presses the enclosure; the first feeder of the enclosing sign pushes the combined fireworks on the connecting station in the straight direction to enter the covering station through the covering station inlet, and the enclosing sign is pulled to be covered on three sides of the combined fireworks during entering; the movable sealing piece moves to push the first end of the enclosing poster to be coated on the fourth side face of the combined firework; when the second feeder is pushed to the discharge passage, the fixed sealing piece and the swing sealing piece overlap the second end of the enclosing device on the first end to complete sealing.

2. The mount device of claim 1 wherein at least one of the platen members has a translational drive member that drives the platen member to reciprocate linearly along the working surface of the negative pressure riser.

3. The mount device of claim 1 wherein transition rollers are disposed on opposite sides of the entrance to said coating station.

4. The mount assembly of claim 1 wherein said fixed seal and said oscillating seal are positioned on one side of said throat entrance and a transition roller is positioned on the opposite side of said throat entrance.

5. The mount assembly of claim 1 wherein the pivot shafts at each end of the swing seal are mounted in the swing guide slots, the pivot shafts are hinged to the free ends of the swing arms, the base of the swing arms are hinged to the pivot shafts which secure the seal, the middle of the swing arms are connected to one end of the spring, and the other end of the spring is connected to the frame.

6. The mount device of claim 1 wherein the follower retainer is disposed behind the wrapping station and moves in a direction opposite to that of the first surrounding ejector, the follower retainer extends to the entrance of the wrapping station and abuts against the rear of the assembled firework, and the follower retainer retracts synchronously when the first surrounding ejector is pushed forward.

7. The mount device of claim 1 wherein the press roller set is provided with a height adjustment assembly; and pressure adjusting components are arranged on the pinch rollers corresponding to the station of the first glue applying mechanism and the station of the top and bottom covering and coating mechanism.

8. The mount device of claim 1 wherein the frame is comprised of four rollers, wherein each end of each roller has a rounded end portion with a gradually increasing diameter, and wherein the rounded end portions of adjacent rollers are joined together such that the four corners of the inner ring of the frame are rounded.

9. The mount device of claim 1 wherein said frustoconical end portion has a chamfer portion on an outer periphery thereof; two adjacent rotating rollers are spliced through the chamfer parts, so that four corners of the inner ring of the frame body are in a fillet shape.

10. The mount device of claim 1 wherein the applicator head of the first applicator mechanism is connected to a reservoir for pressurized gas and glue, respectively, via a conduit, the conduit having a rotatable sleeve thereon, the rotatable sleeve comprising an outer tube and an inner tube fixedly disposed within the outer tube; a gap between the inner wall of the outer pipe and the outer wall of the inner pipe forms a pressure gas channel, and an inner cavity of the inner pipe forms a glue channel; the wall of the outer pipe is provided with an inlet and an outlet of a pressure gas channel, the inlet is connected with a storage container of pressure gas through a first rotary sealing joint, and the outlet is communicated with the rotating element; the inlet end of the inner tube is connected with a glue storage container through a second rotary sealing joint, and the outlet end of the inner tube is communicated with the rotating element.