CN218443548U - Surrounding and poster coating mechanism of combined fireworks - Google Patents

Abstract

The utility model discloses a surrounding and covering mechanism of combined fireworks, wherein a covering station inlet is positioned between two negative pressure vertical plates; a paper pressing piece is arranged on the working surface corresponding to each negative pressure vertical plate, a paper pressing roller is arranged on one side of the paper pressing piece, 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 first pusher pushes the combined fireworks on the preparation station in the vertical direction to enter the cladding station through the cladding station inlet, and the second pusher pushes the combined fireworks on the cladding station to the discharge channel in the horizontal direction. The work is reliable, the mechanism is simple, the flow is compact, and the work is smooth; meanwhile, the device does not need to use adhesive tapes to assist in enclosing and wrapping; the firework display device can be adjusted according to the specification of the combined fireworks to adapt to the combined firework enclosing packages with various specifications; the applicability of the equipment is effectively improved.

Description

Surrounding and poster coating mechanism of combined fireworks

Technical Field

The utility model relates to a mount skin equipment for packing of combined fireworks, in particular to a mount skin mechanism.

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 cover is adhered to the top surface of the product, the bottom cover is adhered to the bottom surface of the product, and the surrounding cover is adhered to 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, the utility model patent document with the publication number of CN 206944837U discloses a firework packaging device,

"a side wall paper packaging structure of a combined firework full-automatic packaging machine" disclosed in the utility model patent publication No. CN109059677A,

The utility model patent publication No. CN109264077A discloses a combined firework full-automatic packaging machine,

Chinese utility model patent with publication number CN 209485161U discloses a firework barrel packaging machine for producing fireworks and firecrackers,

Chinese utility model patent document No. CN 113734518A discloses a tunnel type combined firework poster paper wrapping device.

In the prior art, the main defect of the enclosing and covering mechanism is that the working reliability is low, and the enclosing and covering mechanism is difficult to popularize and use.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model aims to solve the technical problem of providing a enclose and cover mechanism for combining fireworks mount leather package, which effectively improves the working reliability. In order to solve the technical problem, the utility model adopts the technical scheme that the enclosing and covering mechanism of the combined firework is characterized by comprising two negative pressure vertical plates and a covering station inlet; 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 first pusher pushes the combined fireworks on the preparation station in the vertical direction to enter the cladding station through the cladding station inlet, and the second pusher pushes the combined fireworks on the cladding station to the discharge channel in the horizontal direction.

By adopting the technical scheme, the enclosing cover is conveyed to the two negative pressure vertical plates and the inlet of the cladding station 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 enclosing cover; the first material pusher pushes the combined fireworks on the preparation station in the straight direction to enter the cladding station through the cladding station inlet and pulls the cladding to clad 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 pusher transversely pushes the combined fireworks on the wrapping station to the discharge channel, the fixed sealing piece and the swinging sealing piece wrap and overlap the second end of the enclosure on the first end to complete the enclosure sealing.

The enclosing and covering mechanism further comprises an enclosing and conveying assembly, the enclosing and conveying assembly comprises a tray, and the enclosing and covering mechanism is pre-cut and is stacked in the tray for later use; on the conveyer belt was sent to enclosing of over-and-under type's removal sucking disc in with the tray, the conveyer belt top was equipped with to enclose and is beckoned glueing subassembly, and the terminal below of conveyer belt links up two negative pressure risers and cladding station entry. The automatic feeding of the enclosure is reliably realized.

Preferably, the tail end of the conveying belt is connected with the two negative pressure vertical plates and the coating station inlet through a paper passing gap of the corner part; the conveying belt is provided with a plurality of paper protection telescopic rods. The protective paper telescopic rod extends out of the protective paper feeding enclosure when the enclosure descends, and retracts after the enclosure descends in place. The descending process of the enclosing cover at the corner part is smoother.

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 preferable working surface is provided with 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 piece to be equipped with translation driving piece, and translation driving piece drives and presses paper piece along the reciprocating linear motion of negative pressure riser's working face. 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 cladding 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 cladding 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 enclosure delivery assembly and the enclosure sizing assembly are mounted on a lifting bracket. The overall height can be adjusted according to the specification of the combined fireworks.

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.

The utility model has the advantages of reliable work, simple mechanism, compact flow and smooth work; meanwhile, the device does not need to use adhesive tapes to assist in enclosing and wrapping; the firework can be adjusted according to the specifications of the combined fireworks to adapt to the combined firework enclosing packages of various specifications; the applicability of the equipment is effectively improved.

Of course, it is not necessary for any particular product 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

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

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

FIG. 3 is a schematic structural view 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 step start point;

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

FIG. 7 is a schematic view (front view) of the internal principle construction 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 view of the top and bottom cladding mechanism;

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

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

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

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

FIG. 15 is an enlarged partial schematic view of the enclosure wrapping mechanism, showing the primary reaction to the configuration 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 cladding station.

Detailed Description

The enclosing and covering mechanism of the utility model is applied to a firework mount leather machine. Referring to the attached figure 1-2, a specific structure of the combined firework mount skin machine is reflected. For the convenience of description, the following embodiments are described with reference to the overall enclosure mechanism in the application scenario of the enclosure mechanism of the present invention. But should not be construed as the claimed enclosure cladding mechanism can only be applied to this complete machine.

The firework mount leather machine comprises a stepping feeding mechanism 1, the stepping feeding mechanism 1 drives a combined firework 2 to sequentially pass through a top and bottom glue applying mechanism 3 and a top and bottom coating mechanism 4, then the combined firework enters an attitude converter 5 to be converted into an upright state, and then enters a surrounding coating mechanism 6, wherein,

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. And pressure adjusting bolts 105 are arranged on the pressing wheels corresponding to the station of the top-bottom glue applying mechanism 3 and the station of the top-bottom cladding mechanism 6, and the pressure adjusting bolts 105 adjust the lower pressure degree of the pressing wheels 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 101 is provided with three toggle pieces 107 for driving the combined firework 2 to move forwards along the slide 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 toggle piece 107 drives the combined fireworks 2 to step when extending upwards, and the toggle piece 107 resets to a stepping starting point when retracting downwards.

The three stirring members 107 are mounted on the base plate 110 through the telescopic cylinder 109, the base plate 110 is connected with the stepping driver 108, the three stirring members 107 are driven to step right once and reset left once among the stations, the circulation work is carried out, the combined fireworks 2 of the stations are pushed to move forward gradually and intermittently along the guide rail 111, and the combined fireworks enter the box body 501 from the initial station, the glue applying station and the top and bottom covering station of the slide 101 in sequence. The telescopic cylinder 109 is connected with and drives the toggle piece 107 to lift, when the telescopic cylinder rises, the toggle piece 107 extends upwards to be higher than the slideway 101, and when the toggle piece 107 steps, the combined firework 2 can be toggled; 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 top and bottom glue applying mechanism 3 rotates around the glue applying part of the combined firework 2 in the horizontal state to complete glue applying work.

Referring to fig. 6-9, in the illustrated example, applicator head 304 is coupled 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. Thereby continuously supplying the pressurized gas to the rotating first fluid passage.

The inlet end 3105 of the inner tube 3101 is connected to a glue reservoir by the second rotary seal joint 303, so that glue is continuously supplied to the rotary second fluid channel. 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 sliding 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 to the rotary sleeve 301 are also connected to the base plate 319, and the whole body moves up and down along with the base plate 319.

In the example, two groups of glue applying heads, rotating sleeves thereof and other components 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, in the example, the top and bottom covering mechanism 4 includes two frames respectively located at two side surfaces of the two ends of the horizontal combined firework 2, and the frames are composed of four rubber rollers 401 and four base 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 and 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 back plate 502 of the box 501 is fixedly connected with a rotating shaft 503, and is pulled by a box cylinder 504 to realize positive and negative rotation by 90 degrees, so as to switch between a feeding state and a 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 connecting pusher 505 formed by the air cylinder pushes the combined fireworks 2 in the vertical postures to enter the preparation station 507 from the discharging opening.

In other embodiments, only need to arrange combination fireworks 2 in through manual work or mechanical equipment and prepare station 507, can adopt enclose and ask cladding mechanism enclose and ask cladding work.

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 sucking disc (not shown in the figure) is correspondingly arranged above the tray 601, the sucking disc mounting rack 602 is driven by the sucking disc horizontal cylinder 603 to move back and forth, the sucking disc mounting rack 602 is driven by the sucking disc lifting cylinder 604 to lift, and 7 is moved to the conveyer belt 607 by enclosing in the tray 601.

A glue enclosing and applying assembly is arranged above the conveying belt 607: the glue applying device comprises a glue applying head mounting frame 605, wherein the glue applying head mounting frame 605 is connected with a glue applying head cylinder 606 to do linear reciprocating motion along a conveying belt so as to apply glue to a surrounding cloth 7 on the conveying belt 607; a glue reservoir 608 is included for supplying glue to the applicator head. The conveyor belt 607 may be provided with a telescopic flight. The enclosure was paused to facilitate sizing.

The apron feed assembly and the apron glue assembly 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; the 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 a plurality of enclosing and attracting rollers 612, the paper protection telescopic rods 613 extend out of the enclosing and attracting device when the enclosing and attracting device descends, and the enclosing and attracting device retracts after the enclosing and attracting device descends in place, so that the descending of the 7-corner enclosing and attracting device can be more smooth.

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 signboard 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 adopt rubber rollers with elastic working surfaces, and two ends of the roller body are provided with rotating shafts. 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 follow-up paper fixing piece 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 discharging channel 625, and a second transition roller 626 is correspondingly arranged at the other side of the inlet of the discharging 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 conveyor 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 to press on the enclosure 7; the first pusher 631 formed by the cylinder and the push-pull head pushes the combined fireworks 2 on the preparation station 507 straight through the cladding station inlet 616, and the combined fireworks 2 are 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 second pusher 634 formed by the air cylinder transversely pushes the combined fireworks 2 on the wrapping station to the discharge channel 625, the fixed sealing roller 622 wraps and overlaps the second end 702 of the enclosure 7 on the first end 701 to complete the sealing, thereby completing the enclosure wrapping work. Two sides of the discharge 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, the mount leather machine completes the top and bottom mounting and the mount leather packaging of the combined firework 2.

The above disclosed embodiments of the present invention are merely provided to help illustrate the present invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The present invention may be embodied in many different forms without departing from the spirit or essential characteristics thereof, and it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A surrounding and covering mechanism for combined fireworks is characterized by comprising two negative pressure vertical plates and a covering station inlet; 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 first pusher pushes the combined fireworks on the preparation station in the vertical direction to enter the cladding station through the cladding station inlet, and the second pusher pushes the combined fireworks on the cladding station to the discharge channel in the horizontal direction.

2. The enclosure cladding mechanism of claim 1, further comprising an enclosure transport assembly, said enclosure transport assembly comprising a tray, the pre-cut enclosure being stacked in the tray for use; on the conveyer belt was sent to enclosing of over-and-under type's removal sucking disc in with the tray, the conveyer belt top was equipped with to enclose and to be encumbered glueing subassembly, and the terminal below of conveyer belt links up two negative pressure risers and cladding station entry.

3. The enclosing and covering mechanism of claim 2, wherein the tail end of the conveyor belt is connected with the two negative pressure vertical plates below and the inlet of the covering station through a paper passing gap of the corner part; the conveying belt is provided with a plurality of paper protection telescopic rods.

4. A surround mechanism according to any one of claims 1 to 3 wherein the movable, fixed and oscillating closure members comprise flexible roller members having flexible working surfaces, the roller members having shafts at opposite ends thereof.

5. A mechanism according to any one of claims 1 to 3 wherein at least one of the platen members is provided with a translational drive member which drives the platen member in a linear reciprocating motion along the working surface of the negative pressure riser.

6. A cladding mechanism according to any one of claims 1 to 3, wherein transition rollers are provided on either side of the entry to the cladding station.

7. A poster wrapping mechanism according to any of claims 1 to 3, wherein said fixed and oscillating closures are located on one side of the inlet of said channel, and a transition roller is provided on the other side of the inlet of the channel.

8. A mechanism as claimed in any one of claims 1 to 3, wherein the two ends of the swing closure are pivotally mounted in the swing guide slots, the pivot is pivotally connected to the free end of the swing arm, the base of the swing arm is pivotally connected to the pivot of the fixed closure, the middle of the swing arm is connected to one end of a spring, and the other end of the spring is connected to the frame.

9. A poster coating mechanism as in any of claims 1 to 3, wherein said poster delivery assembly and poster applicator assembly are mounted on a lifting bracket.

10. A surround cladding mechanism according to any one of claims 1 to 3 wherein a follower retainer is provided behind the cladding station, the follower retainer moving in a direction opposite to that of the surround first pusher, the follower retainer extending to the entrance of the cladding station to bear against the rear of the assembled firework, the follower retainer retracting synchronously as the surround first pusher advances.

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