CN111776295B

CN111776295B - Letter packaging device and letter packaging system

Info

Publication number: CN111776295B
Application number: CN202010250448.4A
Authority: CN
Inventors: 王佳
Original assignee: Beijing Jingdong Qianshi Technology Co Ltd
Current assignee: Beijing Jingdong Qianshi Technology Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2022-02-01
Anticipated expiration: 2040-04-01
Also published as: CN111776295A

Abstract

The invention discloses a letter packaging device and a letter packaging system, and relates to the field of packaging machinery. The letter packaging device comprises a mounting seat, an envelope opening mechanism and a paper conveying mechanism. The mounting block is configured to provide support, the mounting block including a letter-loading station; the envelope opening mechanism comprises a first adsorption component and a second adsorption component which are both arranged on the mounting seat. The first adsorption component is positioned above the second adsorption component and a gap is formed between the first adsorption component and the second adsorption component; the first adsorption component is configured to adsorb a first surface of the envelope, and the second adsorption component is configured to adsorb a second surface of the envelope; the first and second sorbent assemblies cooperate together to open the envelope. The paper conveying mechanism comprises paper pushing mechanisms which are all arranged on the mounting seat; the paper pushing mechanism is configured to push a letter into the opened envelope. By the technical scheme, automatic letter loading operation is realized.

Description

Letter packaging device and letter packaging system

Technical Field

The invention relates to the field of packaging machinery, in particular to a letter packaging device and a letter packaging system.

Background

The packaging machine is a high-technology, high-intelligence and high-competition product integrating mechanical, electrical, optical, acoustic, magnetic, chemical, biological and aesthetic functions. The development speed and the updating speed are the main characteristics of the method. All high-tech products in the world can be applied to the technology. The packaging industry belongs to the matching industry, relates to a plurality of fields of national economy, in particular to the food industry and the beverage industry, and is more dependent on the technical progress and the matching service of the packaging industry.

In recent years, the packaging machine industry develops rapidly, and various packaging devices are in endless. The card packaging industry is different after the paper outlet machine, and commodities such as business cards, specifications, game cards and the like are fed and packaged through the paper outlet machine, so that the commodities are placed on a goods shelf in a perfect appearance. When the paper outlet machine works, sheet materials to be packaged need to be placed in a storage bin firstly, and after the storage bin is arranged, the sheet materials are fed to a packaging production line for packaging and processing.

The inventor finds that at least the following problems exist in the prior art: the structure of the envelope filling equipment is rare, and the structure of the existing envelope filling equipment is unreasonable and the mechanism is complex.

Disclosure of Invention

The invention provides a letter packaging device and a letter packaging system, which are used for realizing the optimization of the structure of the letter packaging device.

The embodiment of the invention provides a letter packaging device, which comprises:

a mount configured to provide support, the mount including a letter-loading station;

the envelope opening mechanism comprises a first adsorption component and a second adsorption component which are both arranged on the mounting seat; the first adsorption assembly is positioned above the second adsorption assembly and provided with a gap; the first adsorption component is configured to adsorb a first surface of an envelope, and the second adsorption component is configured to adsorb a second surface of the envelope; the first and second sorbent assemblies cooperate together to open the envelope;

the paper conveying mechanism comprises paper pushing mechanisms, and the paper pushing mechanisms are all arranged on the mounting seat; the paper pushing mechanism is configured to push a letter into the opened envelope.

In some embodiments, the first adsorption assembly comprises:

a first suction cup configured to suck a first surface of the envelope; and

the first sucking disc driving mechanism is connected with the first sucking disc; the first suction disk drive mechanism is configured to drive the first suction disk up and down to switch the first suction disk between a suction position and a non-suction position.

In some embodiments, the first suction disc drive mechanism comprises:

a power source configured to provide rotational power, the power source mounted to the mount; and

the cam transmission mechanism is in driving connection with the power source and is in driving connection with the first sucking disc; and the cam gear is configured to convert the rotation of the power source into the up-and-down movement of the first suction cup.

In some embodiments, the letter enclosure apparatus further comprises:

the vertical mounting base is fixed on the mounting base; the power source is arranged on the mounting seat through the vertical mounting base;

the cam transmission mechanism includes:

the cam is rotatably arranged on the vertical mounting base and is in driving connection with an output shaft of the power source;

the first mounting shaft is rotatably connected with the vertical mounting base and is in driving connection with the cam, so that the first mounting shaft rotates along with the rotation of the cam; and

the parallelogram connecting rod assembly is in driving connection with the first mounting shaft and comprises a first connecting rod, a second connecting rod parallel to the first connecting rod, a third connecting rod and a fourth connecting rod; the first connecting rod is parallel to the second connecting rod; the first connecting rod is vertical and is fixedly connected with the vertical mounting base; the third connecting rod and the fourth connecting rod are parallel; one end of the third connecting rod is fixedly connected with the first mounting shaft, and the other end of the third connecting rod is rotatably connected with the second connecting rod; two ends of the fourth connecting rod are respectively rotatably connected with the first connecting rod and the second connecting rod;

wherein the first suction cup is mounted to the second link.

In some embodiments, the cam drive mechanism further comprises:

the transmission assembly comprises a rotating wheel and a connecting rod, the rotating wheel is rotatably arranged at the first end of the connecting rod, and the second end of the connecting rod is fixedly connected with the first mounting shaft; the runner presses against the edge of the cam.

In some embodiments, the first chuck drive mechanism further comprises:

the first sucker is connected with the second connecting rod through the sucker mounting beam; the sucking disc installation roof beam includes the mounting groove, install the first sucking disc that a plurality of axis are parallel to each other in the mounting groove.

In some embodiments, the first chuck drive mechanism further comprises:

and each first sucker is connected with the sucker mounting beam through the respective sucker supporting beam.

In some embodiments, the suction cup support beam is provided with an adjustment slot, the first suction cup being mounted to the adjustment slot; the length direction of the adjusting groove is perpendicular to the length direction of the mounting groove.

In some embodiments, the envelope opening mechanism further comprises:

the envelope edge supporting mechanism comprises a supporting plate and a supporting plate transmission mechanism; the supporting plate transmission mechanism is connected with the first mounting shaft, and the supporting plate is in driving connection with the supporting plate transmission mechanism; the spreader plate drive mechanism is configured to convert rotation of the first mounting shaft into linear motion of the spreader plate in a horizontal plane.

In some embodiments, the envelope edging mechanism comprises:

the first rod piece is fixed with the first mounting shaft at the first end;

the first end of the second rod piece is hinged with the second end of the first rod piece;

the supporting edge sliding block is hinged with the second end of the second rod piece, and the supporting plate is fixed on the supporting edge sliding block; and

the edge supporting slide block is arranged on the edge supporting guide rail;

the edge supporting slide block moves linearly along the edge supporting guide rail along with the rotation of the first mounting shaft.

In some embodiments, the envelope edging mechanism further comprises:

the supporting plate mounting beam is fixedly connected with the supporting edge sliding block through the supporting plate mounting beam; the bracing plate mounting beam is parallel to the first mounting shaft.

In some embodiments, the gusset mounting beam mounts two gussets that cooperate together to brace the open edge of the envelope.

In some embodiments, the second adsorbent assembly comprises:

and the second sucker is fixedly arranged on the mounting seat, and the second sucker is positioned under the first sucker or obliquely below the first sucker.

In some embodiments, the cam drive mechanism further comprises:

the belt wheel driving mechanism comprises a first belt wheel, a second belt wheel and a conveying belt, the first belt wheel is coaxially fixed with a conveying shaft of the power source, the second belt wheel is coaxially installed with the cam, and the conveying belt is wound on the first belt wheel and the second belt wheel;

wherein the cam is driven by the pulley drive mechanism and the power source.

In some embodiments, the paper pushing mechanism comprises:

a paper pushing lever configured to push paper; and

a paper pushing rod transmission mechanism in driving connection with the power source, the paper pushing rod transmission mechanism being configured to convert rotation of the power source into paper pushing motion; the paper pushing rod is in driving connection with the paper pushing rod transmission mechanism.

In some embodiments, the paper pushing bar transmission mechanism comprises:

a crank coaxial with and fixed to the cam;

one end of the fifth connecting rod is rotatably connected with the crank;

the paper pushing rod sliding block is hinged with the other end of the fifth connecting rod, and the paper pushing rod sliding block are installed together; and

the paper pushing rod guide rail is provided with a paper pushing rod sliding block; the paper push rod guide rail is configured to make the paper push rod slider move linearly along the paper push rod guide rail.

In some embodiments, the paper pushing bar transmission mechanism further comprises:

one end of the swinging rod is rotatably connected with the paper pushing rod sliding block, and the other end of the swinging rod is connected with the paper pushing rod; and

the arc-shaped guide rail is close to the swinging rod and is fixed on the vertical mounting base, the arc-shaped guide rail is provided with an arc-shaped supporting surface, and the moving track of the paper pushing rod is consistent with the shape of the arc-shaped supporting surface;

wherein the paper pushing lever is configured to move along the arc-shaped support surface of the arc-shaped guide rail in accordance with the linear movement of the swing lever.

the paper pushing rod mounting beam is parallel to the first mounting shaft, the paper pushing rod mounting beam and the swinging rod are fixed together, and the part of the paper pushing rod mounting beam extending out of the swinging rod is in contact with the arc-shaped supporting surface of the arc-shaped guide rail; the paper pushing rod is installed and connected with the swinging rod through the paper pushing rod installation beam.

In some embodiments, the paper pushing rod mounting beam is provided with a plurality of paper pushing rods arranged at intervals.

In some embodiments, the letter enclosure apparatus further comprises:

the envelope pressing mechanism comprises a pressing plate, and the pressing plate is rotatably arranged on the mounting seat; the platen is configured to switch between a compressed state and a released state;

when the pressing plate is in a pressing state, the pressing plate presses the sealing part of the second surface of the envelope; when the pressure plate is in the released state, the pressure plate is away from the seal portion of the second surface of the envelope.

In some embodiments, the letter enclosure apparatus further comprises:

a letter output mechanism mounted to the mounting base, the letter output mechanism configured to push an envelope containing a letter away from the envelope opening mechanism.

In some embodiments, the letter output mechanism comprises:

the length direction of the push rod is perpendicular to the paper pushing direction of the paper pushing mechanism, and the push rod is telescopically arranged on the mounting seat; and

the letter output conveying belt is arranged at the downstream of the push rod and is arranged on the mounting seat;

a pinch roller mounted above the letter output conveyor belt and configured to increase friction between the envelope and the letter output conveyor belt such that the envelope pushed onto the letter output conveyor belt by the push rod moves with the letter output conveyor belt.

In some embodiments, the letter output mechanism further comprises:

the pinch roller mounting mechanism comprises a second mounting shaft, a mounting rod, a third mounting shaft and a tension spring; the second mounting shaft is fixed on the mounting seat; the first end of the mounting rod is rotatably connected with the second mounting shaft, and the second end of the mounting rod is rotatably connected with the pinch roller; the third installation axle is located between the second installation axle and the mail output conveyer belt, the first end of extension spring with the third installation axle is fixed, the second end of extension spring with the pinch roller is fixed.

In some embodiments, the letter enclosure apparatus further comprises:

a static charge removing device mounted to the mount, the static charge removing device configured to remove static charge from the envelope and/or letter.

The embodiment of the invention also provides a letter packaging system which comprises the letter packaging device provided by any technical scheme of the invention.

The letter packaging device provided by the technical scheme comprises an envelope opening mechanism and a paper conveying mechanism. The envelope opening mechanism adopts the adsorption component to open the envelope. The paper transport mechanism inputs paper into the opened envelope. The envelope opening operation is reliable, the number of the motion mechanisms is small, and the matching between the mechanisms is more reliable. The letter packaging device realizes automatic letter loading into envelopes, has high production efficiency and automation degree, can realize continuous automatic production, has no manual operation, greatly reduces the labor cost, ensures the safety of stainless steel production, has no pollution to the working environment, has compact structure and occupies small area.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic structural diagram of a letter packaging system according to an embodiment of the present invention;

fig. 2 is a schematic front view of a sheet material discharging device provided in an embodiment of the present invention;

FIG. 3 is a perspective view of a discharging device for sheet materials according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a sheet material discharging device provided in an embodiment of the present invention;

FIG. 5 is a partial perspective view of a sheet material discharging device provided in an embodiment of the present invention;

fig. 6 is another partial perspective view of the sheet material discharging device provided in the embodiment of the present invention;

fig. 7 is a schematic partial perspective view of a sheet material discharging device according to an embodiment of the present invention;

FIG. 8 is a partial perspective view of a sheet material discharge device according to an embodiment of the present invention;

fig. 9 is a schematic front view of a sheet material discharging device provided in an embodiment of the present invention;

FIG. 10 is a schematic partial front view of a sheet material discharging device according to an embodiment of the present invention;

fig. 11 is a perspective view of a letter packaging system at a letter packaging device provided by an embodiment of the present invention;

fig. 12 is another perspective view of a letter packaging system at a letter packaging device in accordance with an embodiment of the present invention;

fig. 13 is a further perspective view of a letter packaging system at a letter packaging device provided by an embodiment of the present invention;

fig. 14 is a further perspective view of a letter packaging system at a letter packaging device in accordance with an embodiment of the present invention;

fig. 15 is another perspective view of a letter packaging system at a letter packaging device in accordance with an embodiment of the present invention;

fig. 16 is a further perspective view of a letter packaging system at a letter packaging device provided by an embodiment of the present invention;

fig. 17 is a further perspective view of a letter packaging system at a letter packaging device in accordance with an embodiment of the present invention;

fig. 18 is a perspective view of a letter packaging appliance according to an embodiment of the present invention;

fig. 19 is another perspective view of a letter packaging appliance according to an embodiment of the present invention;

fig. 20 is a further perspective view of a letter packaging appliance in accordance with an embodiment of the present invention;

fig. 21 is a schematic front view of a portion of a letter packaging apparatus according to an embodiment of the present invention;

fig. 22 is a schematic front view of a part of the structure of a letter packaging apparatus according to an embodiment of the present invention;

fig. 23 is a rear view of a portion of a letter packaging apparatus according to an embodiment of the present invention;

FIG. 24 is a schematic view of the structure of an envelope.

Detailed Description

The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 24.

Referring to fig. 1-24, some embodiments of the present invention provide a letter packaging system for sheet materials such as paper or small pieces. The letter packaging system comprises a sheet material discharge device 20. The sheet material discharge device 20 is used for separating a stack of sheet materials 30 into individual sheets and conveying the individual sheets. The sheet material 30 is, for example, letter 31, envelope 32.

In some embodiments, the letter packaging system may be provided with a plurality of sheet material outfeeds 20, with some of the sheet material outfeeds 20 being used to separate and output the letter 31 and the remaining sheet material outfeeds 20 being used to separate and output the envelope 32.

In some embodiments, the letter packaging system further includes a letter packaging device 10, the letter packaging device 10 configured to enclose a letter 31 within an envelope 32.

In some embodiments illustrated in fig. 1, the letter encapsulation device 10 comprises two sheet outfeed devices 20 for separating and outputting envelopes 32 and four sheet outfeed devices 20 for separating and outputting letters 31. The letter packaging device 10 is located between the sheet material discharge device 20 of the output envelope 32 and the sheet material discharge device 20 of the output envelope 31. The letter packaging device 10 is located downstream of the sheet material outlet 20 of the output envelope 32, and the letter packaging device 10 is also located downstream of the sheet material outlet 20 of the output envelope 31. The opening direction of the envelope 32 is directed toward the letter 31, and the letter 31 is loaded into the envelope 32 by the letter packing device 10 and then output. The letter is an integral body formed by putting the letter 31 in an envelope 32.

Various embodiments of the sheet material discharge device 20 and the letter packaging device 10 are described in detail below.

Referring to fig. 1 to 10, an embodiment of the present invention provides a sheet material discharging device 20 for separating and conveying a stack of sheet materials 30 into individual sheets. The sheet material discharging device 20 includes a base 21, a stock assembly 22, and a discharging assembly 23.

The base 21 is configured to provide support. The support surface of the base 21 may be provided flat or contoured, depending on the configuration of the component to be supported and the tendency of the component to move. Referring to FIG. 1, in some embodiments, base 21 includes elongated boxes 212 arranged in rows and a tilt frame 213 positioned at the top of boxes 212. Two long guard plates 214 are arranged at the top of the elongated box body 212, and all the movement of the sheet materials 30 output by the sheet material discharging device 20 is within the range limited by the guard plates 214. The inclined shelf 213 is higher on the upstream side in the discharging direction of the discharging assembly 23, and the inclined shelf 213 is lower on the downstream side in the discharging direction of the discharging assembly 23. The entire tilting frame 213 is high on one side and low on one side to achieve the transport of the sheet material 30 from high to low.

In some embodiments, tilt frame 213 includes a tilt riser 213a and a tilt support plate 213 b. The inclined support plate 213b is located between the two inclined vertical plates 213 a. The inclined support plate 213b is located higher at the end downstream of the discharging assembly 23 in the discharging direction, and the inclined support plate 213b is located lower at the end downstream of the discharging assembly 23 in the discharging direction.

Referring to fig. 1, the inclined vertical plate 213a is provided with a signal indicator lamp 26, and the signal indicator lamp 26 is used for sending an indication signal when the sheet material discharging device 20 fails, so as to remind an operator to perform maintenance. The base 21 is provided with sensors at various positions to detect desired parameters such as speed, pitch, etc. The base 21 is further provided at a plurality of positions with static removing means 25, such as negative ion blowing means, and the static removing means 25 is used for removing static electricity from the sheet material 30.

Referring to fig. 1-10, the magazine assembly 22 is used to hold a plurality of sheet materials 30. The magazine assembly 22 includes a support assembly 221 and a dam assembly 222. The support assembly 221 is mounted on the elongated box 212 of the base 21, and the striker assembly 222 is mounted on the inclined bracket 213 of the base 21. In the height direction, the magazine assembly 22 is not obscured, so the height at which the sheet material 30 is stacked is almost unlimited.

Referring to fig. 1 to 10, the support assembly 221 is configured to support a first end of the lowermost sheet 30 of the stack of sheets 30. The dam assembly 222 is configured to retain the second end of the entire sheet material 30. After the pieces 30 are placed, the first end of each piece 30 is higher than its second end.

After a stack of sheet-like materials 30 is stacked, the end supported by the supporting assembly 221 is higher, the end blocked by the blocking assembly 222 is lower, the whole stack of sheets is inclined, and the inclined direction is consistent with the discharging direction of the discharging assembly 23.

Static removing devices 25 are mounted on two sides of the stack of sheet materials 30, the static removing devices 25 are used for blowing out negative ion wind to remove static electricity between two adjacent sheet materials 30, so that the sheet materials 30 at the bottom are pre-separated from the sheet materials 30, and further the subsequent discharging assembly 23 can convey the sheet materials 30 one by one.

The support assembly 221 includes an adjustment plate 223 and a posture adjustment mechanism 224. After the sheet 30 is loaded on the curved plate, the bottom shape of the stack will follow the curved plate shape, i.e. the lowermost sheet 30 is closest to the gap between the first baffle 227 and the first conveyor belt 234 of the outfeed assembly 23. In operation of the discharging unit 23, the lowermost sheet material 30 is brought into contact with a pressing roller 231b described later, is drawn out, and is separated from the lowermost second sheet.

As shown in fig. 1 to 5, the adjustment plate 223 is configured to be curved, and an end of the adjustment plate 223 facing the striker assembly 222 is lower than an end thereof far from the striker assembly 222. The adjusting plate 223 is made of a steel plate or other metal plates, so that the rigidity and the strength of the adjusting plate 223 are high, and the phenomenon that the supporting effect is affected due to too large deformation is not prone to occurring in the process of supporting the flaky materials 30. The adjusting plates 223 are provided in two, and the two adjusting plates 223 are independently installed and cooperatively matched so that one end of the sheet material 30 is effectively supported. The width of the two adjusting plates 223 is adapted to the width of the sheet material 30 to be supported, and the types of the sheet material 30 are various, such as A3, a4, B5, etc.

The adjustment plate 223 is mounted to a posture adjustment mechanism 224, and the posture adjustment mechanism 224 is configured to adjust the posture of the adjustment plate 223.

The posture adjusting mechanism 224 is used for adjusting parameters such as the inclination angle and the supporting height of the adjusting plate 223, and can also adjust the position of the adjusting plate 223, so as to change the distance between the two adjusting plates 223 and the sheet-shaped material 30, so as to adapt to the width to be supported by the sheet-shaped material 30.

It will be appreciated that in other embodiments, three or more adjustment plates 223 may be provided.

The attitude adjustment mechanism 224 includes a first support column 225 and a second support column 226. In some embodiments illustrated in fig. 1, the first support column 225 is disposed substantially perpendicular to the second support column 226. The first support column 225 is fixed to the elongated box 212 of the base 21. The second support column 226 is rotatably mounted to the first support column 225. The adjusting plate 223 is mounted on the second supporting pillar 226, and can be rotatably connected or welded. The second support columns 226 may include a plurality of second support columns 226, and two adjacent second support columns 226 are connected by bolts and lock nuts. The included angle between the two second supporting columns 226 can be manually adjusted, and further the posture adjustment of the adjusting plate 223 is realized.

Referring to fig. 1 to 5, the discharging assembly 23 is used to take out and transport the lowermost sheet of the stack of sheets. The outfeed assembly 23 is located downstream of the support assembly 221, the outfeed assembly 23 being configured to convey the lowermost sheet material 30.

Referring to fig. 1 to 5, the dam assembly 222 includes a first baffle 227, the first baffle 227 is mounted on the base 21, and the first baffle 227 is configured to be bent toward the conveying direction of the discharging assembly 23. The first baffle 227 is, for example, an elongated plate, the bottom end of the first baffle 227 is curved to guide the paper conveying and control the size of the gap, and the gap between the first baffle 227 and the upper surface of the discharging assembly 23 is controlled to allow only one sheet-shaped material 30 to pass through, so that only one sheet-shaped material 30 is conveyed at a time, and a stack of sheet-shaped materials 30 is sequentially peeled off one by one.

The first blocking plate 227 may be provided in one piece or in plural pieces. The shape and size of each baffle can be the same or different. The first baffle plates 227 play a role in guiding flow, and the first baffle plates 227 play a role in guiding flow and adjusting gaps together. Each of the first blocking plates 227 is independently installed and independently adjusted in position, or all of the first blocking plates 227 are fixed together and adjusted together. Alternatively, when there are a plurality of first shutters 227, only one of them, for example, the first shutter 227 located in the middle, is adjustable in gap size. The above arrangement makes the first baffle 227 as a whole play a role in guiding the flow and adjusting the gap between the first baffle 227 and the upper surface of the discharging assembly 23.

In some embodiments, the striker assembly 222 further comprises a gap adjustment mechanism 228, and the first blocking plate 227 is mounted to the base 21 through the gap adjustment mechanism 228. The first flap 227 is adjustably mounted to the gap adjustment mechanism 228. Wherein the gap adjustment mechanism 228 is configured to adjust the gap between the first baffle 227 and the outfeed assembly 23.

It should be noted that in the embodiment having a plurality of first blocking plates 227, the gap adjustment function can be performed as long as one or more first blocking plates 227 are installed on the gap adjustment mechanism 228, and it is not required that all first blocking plates 227 are installed to perform the gap adjustment through the gap adjustment mechanism 228.

In some embodiments, gap adjustment mechanism 228 includes a baffle mount 228a and a baffle adjuster 228 b. The baffle mount 228a is secured to the base 21, such as by welding, bolting. Specifically, the baffle mount 228a is fixedly mounted to the inclined riser 213a of the inclined frame 213. The baffle mount 228a includes a plurality of parallel rods and a connector block 228d, which is fixedly connected to each of the plurality of rods. The baffle adjuster 228b is threadedly coupled to the attachment block 228d of the baffle mounting bracket 228a by a screw 228c, and the height of the screw 228c is adjusted by adjusting the depth to which the screw 228c is screwed into the threaded hole of the attachment block 228 d. The baffle adjuster 228b is fixed to the head of the threaded rod 228c, and the height change of the threaded rod 228c will cause the height of the baffle adjuster 228b to change. And the first baffle 227 is fixed to the baffle adjuster 228b, such as by welding or screwing, so that the height of the first baffle 227 is changed, which changes the gap between the lower edge of the first baffle 227 and the sheet material 30 of the discharging assembly.

In order to prevent the first flap 227 from shaking during the lifting, a sliding block (not shown) is mounted on the back surface of the first flap 227, i.e., the side surface away from the stack of sheets, and a guide rail 228e is mounted on the connecting block 228d, and the guide direction of the guide rail 228e is along the lifting direction of the first flap 227. The slide block is mounted inside the guide rail 228 e. The lifting operation of the first blocking plate 227 is more stable by the cooperation of the sliding block and the guide rail 228 e.

Referring to fig. 1, the dam assembly 222 further includes two second baffle plates 229, and the first baffle plate 227 is disposed between the two second baffle plates 229. Each second baffle 229 is mounted to the baffle mount 228 a.

The second baffle 229 includes a substantially L-shaped bent structure, and one side of the second baffle 229 is parallel to the first baffle 227 and is used to block one end of the sheet material 30. In some embodiments, the bottom edge of second baffle 229 is configured in the same arc as the bottom edge of first baffle 227, or the bottom edge of second baffle 229 is fitted with an arc plate 229 a. The curved plate also guides the transport of the sheet material 30. The other side surface of the second blocking plate 229 is parallel to the inclined vertical plate 213a, and is used for blocking the width-directional edge of the sheet material 30.

Referring to fig. 1-10, the two second baffles 229 cooperate together to grip the sheet material 30. The width of the sheet material 30 is different for different types of sheet materials 30, so in some embodiments, the striker assembly 222 further comprises a linear displacement drive mechanism 220, and the linear displacement drive mechanism 220 is mounted to the baffle mounting bracket 228 a; at least one of the second shutters 229 is mounted to the shutter mounting frame 228a by the linear displacement drive mechanism 220 so that the interval between the two second shutters 229 is adjustable.

Referring to fig. 1 to 10, the linear displacement driving mechanism 220 is, for example, a linear bearing, through which the second barrier plates 229 slide along the rods of the barrier mounting frame 228a to change the interval between the two second barrier plates 229, so that the two second barrier plates 229 clamp the sheet materials 30 in the width direction.

Referring to fig. 1-10, in some embodiments, outfeed assembly 23 comprises a pressure roller assembly 231 and a first conveyor 232. The platen roller assembly 231 includes a platen roller shaft 231a and a platen roller 231b, and the platen roller 231b is freely rotatably mounted to the platen roller shaft 231 a. The platen roller shaft 231a is mounted to the base 21, and specifically, the platen roller 231b is mounted to the inclined upright plate 213a of the base 21. The pressing roller assembly 231 is located on one side of the material blocking assembly 222 away from the supporting assembly 221, the first conveying device 232 is located below the pressing roller assembly 231 and below the material blocking assembly 222, the first conveying device 232 is also located below the end portion, used for supporting the sheet material 30, of the supporting assembly 221, namely below the adjusting plate 223, and the first conveying device 232 and the pressing roller 231b are matched to convey the sheet material 30 located at the lowest layer.

Referring to fig. 1-10, in some embodiments, the first conveyor 232 includes a first conveyor belt 234 and a first drive mechanism 235. The first conveying belt 234 is located below the pressing roller assembly 231. The first driving mechanism 235 is drivingly connected to the first conveyor belt 234 to rotate the first conveyor belt 234.

The first driving mechanism 235 includes a motor 235a and a pulley 235 b. The pulleys 235b include two, and the two pulleys 235b tension the belt together. One of the pulleys 235b is driven by the motor 235a to rotate, and the pulley 235b drives the belt to rotate, and the belt drives the other pulley 235b to rotate.

Referring to fig. 6-10, in some embodiments, the first conveyor belt 234 includes a plurality of belts, and each belt 234 is disposed in parallel. Each of the first conveyor belts 234 is provided with two pulleys 235b, and is tensioned by the two pulleys 235 b. All the pulleys 235b are driven by the same motor 235 a. To make the movement of the pulleys 235b more uniform, the pulleys 235b on the same side of the first conveyor belts 234 are connected together by a shaft 235 c. According to the technical scheme, the first conveying belts 234 support the flaky materials 30 in the width direction, so that the flaky materials 30 are stressed more evenly, and the conveying operation is more stable.

Referring to fig. 6 to 10, in some embodiments, the first conveyor belts 234 include three belts, the width of the first conveyor belts 234 on two sides is smaller than that of the first conveyor belt 234 in the middle, and the contact area between the first conveyor belt 234 in the middle and the sheet material 30 is the largest, and the friction force is also the largest. The middle part of the sheet material 30 along the length direction is stressed the most, so the transportation is stable.

Referring to fig. 6-10, in some embodiments, the nip roller assembly 231 further comprises a pressing mechanism 233. The inclined riser 213a of the base 21 is provided with two recesses 211, each end of the platen roller shaft 231a is located in one of the recesses 211, and the pressing mechanism 233 is also installed in the recess 211 and presses the end of the platen roller shaft 231 a.

The pressing mechanism 233 employs a pressing spring, which makes the pressing roller shaft 231a firmly fixed at the lowest position of the recess 211, so that the position of the pressing roller 231b mounted on the pressing roller shaft 231a is always at the lowest position. The pressing roller 231b increases the friction of the sheet material 30 by the belt of the first conveying device 232 of the sheet material 30, so that the sheet material 30 is smoothly conveyed out.

Referring to fig. 1-5, in some embodiments, the sheet material discharge device 20 further includes a conveying assembly 24, and the conveying assembly 24 is used for rapidly conveying away the sheet material 30 drawn out by the discharge assembly 23. A conveyor assembly 24 is mounted to the base 21, with the conveyor assembly 24 disposed downstream of the outfeed assembly 23, the conveyor assembly 24 being configured to receive and convey the sheet material 30 conveyed by the outfeed assembly 23. Wherein the conveying speed of the conveying assembly 24 is greater than or equal to the discharging speed of the discharging assembly 23.

Referring to fig. 1-5, the conveyor assembly 24 is mounted directly to the elongated housing 212 of the base 21 or a separate support member is provided. In some embodiments of the present invention, the conveyor assembly 24 is mounted to the inclined riser 213 a.

The inclined vertical plate 213a is also provided with a static removing device 25 at the part of the conveying assembly 24 and the sheet material 30 of the discharging assembly, and the static removing device 25 is used for removing static electricity of the sheet material 30 and the belt of the discharging assembly 23 and other parts of the sheet material 30, so that the sheet material 30 is smoothly transited from the discharging assembly 23 to the conveying assembly 24 and is conveyed away by the conveying assembly 24.

Referring to fig. 1-5, in some embodiments, the conveyor assembly 24 includes a second conveyor belt 241 and a second drive mechanism 242. The second conveyor belt 241 is located downstream of the outfeed assembly 23. The second driving mechanism 242 is drivingly connected to the second conveying belt 241 to drive the second conveying belt 241 to rotate. The second conveyor belt 241 rotates to convey the sheet material 30.

Referring to fig. 1 to 5, the second driving mechanism 242 includes a second motor 242d and a second pulley 242 e. The second pulley 242e includes two, and the two second pulleys 242e tension the belt together. One of the second pulleys 242e is driven by the second motor 242d to rotate, and the second pulley 242e drives the belt to rotate, and the belt drives the other second pulley 242e to rotate.

Referring to fig. 1 to 5, in some embodiments, the second conveying belt 241 includes a plurality of belts, and each of the second conveying belts 241 is disposed in parallel. Each of the second conveyor belts 241 is provided with two second pulleys 242 e. All of the second pulleys 242e are driven by the same second motor 242 d. In order to make the movement of the respective second pulleys 242e more uniform, the respective second pulleys 242e on the same side as the respective second conveyor belts 241 are coupled together by a shaft. Above-mentioned technical scheme, each second conveyer belt 241 supports slice material 30 in width direction jointly, and this makes slice material 30's atress more balanced, and it is more steady to carry the operation with higher speed.

Referring to fig. 1-5, in some embodiments, the second conveyor belt 241 includes two sets: a first accelerated drive belt 244 and a second accelerated drive belt 245. The sheet material 30 passes through the pressing roller 231b and then enters the gap between the first acceleration-driven belt 244 and the second acceleration-driven belt 245. The first and second

accelerated drive belts

244 and 245 are located in a first temporary storage area 246, and a second temporary storage area 247 is further provided downstream of the first and second

accelerated drive belts

244 and 245. A paper transfer mechanism 27, described later, is located downstream of the buffer zone 247. The bottom plate 248 of the second buffer area 247 is provided with two notches 248a, and the paper moving rod 272 of the paper moving mechanism 27 can extend into the two notches 248a, so that the sheet material 30 in the second buffer area 247 is carried away by the friction force between the paper moving rod 272 and the sheet material 30.

Referring to fig. 1 to 5, the first acceleration driving belt 244 and the second acceleration driving belt 245 are stacked one on another and rotate in opposite directions. Between the first acceleration-driven belt 244 and the second acceleration-driven belt 245, there is a gap for conveying the sheet-like material 30, which is right opposite to the discharging plane of the discharging assembly 23, i.e. after the sheet-like material 30 is discharged from the discharging assembly 23, the sheet-like material does not need to be bent downward or upward, but rather enters into the gap between the first acceleration-driven belt 244 and the second acceleration-driven belt 245. Both the first and second acceleration-

drive belts

244, 245 are driven by the second drive mechanism 242.

Referring to fig. 1 to 5, for shock absorption, in some embodiments, a shock absorber 29 may be installed below the second conveyor belt 241.

Referring to fig. 1-5, in some embodiments, the first and second acceleration-driven

belts

244, 245 are driven by the same drive mechanism. The second driving mechanism 242 includes a driving motor 242a, a first gear 242b, and a second gear 242 c. The drive motor 242a is drivingly connected to a first end pulley 244a of a first accelerated drive belt 244. The first end pulley 244a, which is drivingly connected to the first acceleration drive belt 244, is drivingly connected directly or through synchronous pulley transmission. The first gear 242b is fixedly connected to the second end pulley 245a of the first acceleration driving belt 244. The second gear 242c is engaged with the first gear 242b, and the second gear 242c is fixedly connected with the second end pulley 245a of the second acceleration driving belt 245.

The movement of the transport assembly 24 is as follows: the driving motor 242a rotates the first end pulley 244a of the first acceleration driving belt 244 through the timing belt 242f, the first end pulley 244a rotates the belt of the first acceleration driving belt 244, and the belt of the first acceleration driving belt 244 rotates the second end pulley 245a of the first acceleration driving belt 244. The second end pulley 245a of the first acceleration-drive belt 244 drives the second gear 242c to rotate via the first gear 242 b. Since the second gear 242c is fixedly connected to the second end pulley 245a of the second acceleration driving belt 245, the second end pulley 245a of the second acceleration driving belt 245 also rotates in synchronization. The second end pulley 245a of the second acceleration driving belt 245 rotates the belt of the second acceleration driving belt 245, and the belt of the second acceleration driving belt 245 rotates the second end pulley 245a of the second acceleration driving belt 245.

Referring to fig. 1-5, in some embodiments, the conveyor assembly 24 further includes a nip roll 243, the nip roll 243 being mounted to the base 21, the nip roll 243 being located outside of a belt of a second accelerated drive belt 245 for pressing the sheet material 30. The nip roll 243 is configured to keep the gap between the first acceleration-driven belt 244 and the second acceleration-driven belt 245 at a set value by pressing the belt of the second acceleration-driven belt 245. The nip roller 243 prevents the middle portion of the belt of the second acceleration-driven belt 245 from being bent and deformed, and thus the sheet-like material 30 is brought into close contact with both the belt of the first acceleration-driven belt 244 and the belt of the second acceleration-driven belt 245.

Referring to fig. 1-5, in some embodiments, the sheet material discharging device 20 further includes a paper moving mechanism 27, and the paper moving mechanism 27 is mounted on the base 21. A sheet transfer mechanism 27 is located downstream of the conveyor assembly 24 to transfer the sheet material 30 to a location adjacent the letter packing device 10.

The paper moving mechanism 27 comprises a paper moving chain wheel driving mechanism 271 and a paper moving rod 272, wherein the paper moving chain wheel driving mechanism 271 is arranged below the base; the base is provided with a through groove; the paper moving lever 272 is mounted to the paper moving sprocket driving mechanism 271. Wherein, when the paper moving rod 272 rotates to the upper surface of the paper moving sprocket driving mechanism 271, the paper moving rod 272 is configured to extend out of the through slot and is located above the base. In the process that the paper moving rod 272 moves horizontally along with the rotation of the paper moving chain wheel driving mechanism 271, the paper moving rod 272 moves the sheet materials conveyed by the conveying device of the sheet material discharging device at any time and drives the sheet materials to be close to the position of the letter packaging device 10.

Referring to fig. 1 to 24, a paper moving lever 272 is installed at a plurality of positions of a circle of a paper moving sprocket driving mechanism 271, and the paper moving lever 272 rotates with the rotation of the paper moving sprocket driving mechanism 271. In the case of the transport letter 31, the distance of the paper shift lever 272 moving farthest in the transport direction a is from point D to point E. The point C corresponds to the position where the letter 31 conveyed out by the conveying assembly is located, and the point E corresponds to the position where the letter packaging device 10 is ready to move the letter 31 to the letter loading station P. In the case of conveying an envelope 32, when the paper shift lever 272 is in the conveying direction B, the farthest distance of movement of the paper shift lever 272 is from point F to point G. Point F corresponds to the position of the envelope 32 conveyed out by the conveyor assembly and point G corresponds to the position of the letter wrapping device 10 ready to move the envelope 32 to the letter loading station P.

Referring to fig. 1 to 5, in some embodiments, the sheet material discharging device 20 further includes a static removing brush 28, and the static removing brush 28 is installed on the top of the base 21. A static removing brush 28 is located downstream of the outfeed assembly 23 to remove static from the sheet material 30 to be conveyed further downstream from the outfeed assembly 23.

Referring to fig. 1 to 5, in some embodiments, there are a plurality of static removing brushes 28, and the plurality of static removing brushes 28 are dispersedly installed to remove static electricity from the sheet material 30 at a desired position. For example, the downstream end of the second buffer zone 247 is provided with a static removing brush 28, which makes it easier for the sheet material 30 to be carried away from the second buffer zone 247 by the sheet moving mechanism 27.

The flaky material discharging device 20 provided by the technical scheme is convenient to use, the flaky material to be packaged is placed on the storage component 22 before use, and the flaky material is charged to the packaging production line to be packaged and processed after being arranged. The equipment is applied to the packaging and printing industry, can be easily matched with various packaging mechanical equipment for use, has high production efficiency and automation degree of the paper outlet machine, can realize continuous automatic production, has greatly reduced labor cost due to unmanned operation, is safe and safe in manufacturing stainless steel, has no pollution to the working environment, and has compact structure and small occupied area.

Referring to fig. 11-24, a specific implementation of the mailer assembly 10 is described.

Referring to fig. 11-24, in some embodiments, some embodiments of the present invention provide a letter enclosure 10, the letter enclosure 10 including a mount 11 and an envelope opening mechanism 12. In order to facilitate the transport of the paper, the letter packaging appliance 10 also comprises a paper transport mechanism 13.

Mount 11 is configured to provide support for other components. The mounting base 11 has a loading station P. The letter packing device 10 is used to push paper into the envelope 32 and then to be transported to a next process or to be removed manually. The whole letter loading operation is completed at the letter loading station P. The so-called letter-filling operation includes at least two operations of opening the envelope 32 and putting paper into the envelope 32.

Referring to fig. 11-24, in some embodiments, to make the letter loading operation more reliable, the letter loading operation further includes the operation of opening the envelope 32 and then holding both sides of the opening of the envelope 32 so that the edges of the paper can be securely placed into the envelope 32.

The mounting 11 is the basis of the entire letter enclosure 10, and the other components are mounted directly or indirectly to the mounting 11. The configuration of the mounting base 11 varies with the mounting requirements to be met. The mounting base 11 may be of unitary construction or of a patchwork construction. The mounting 11 may be fixed on top of the base 21.

Referring to fig. 1, 11-24, in some embodiments of the present invention, the mount 11 includes a storage box 18 and a mounting frame 19 located on top of the storage box 18. The storage compartment 18 is alongside the box 212 described above and the overall letter enclosure system generally takes the shape shown in figure 1 with the left side carrying the letter 31 in direction a towards the letter enclosure 10 and the right side carrying the envelope 32 in direction B towards the letter enclosure 10. Direction a and direction B are collinear and opposite. The letter wrapping apparatus 10 is used to push a letter 31 into an envelope 32 to complete the wrapping operation and then to deliver the wrapped letter to a downstream process in the direction C of fig. 1.

Referring to FIG. 1, the storage box 18 has a receiving cavity 18a for storing envelopes 32, letters 31, and other components that may not be mounted in an exposed area.

Referring to fig. 11-23, in some embodiments, in order to facilitate mounting of the envelope opening mechanism 12 and the transmission portion of the paper feeding mechanism 13, the letter sealing device 10 further includes a vertical mounting base 14, and the vertical mounting base 14 is fixed with the mounting base 11. The vertical mounting base 14 can be provided with one or parallel risers 142. In some embodiments illustrated in fig. 11-13, two parallel risers 142 are provided, one of the risers 142 being larger in size and the other of the risers 142 being parallel and smaller in size. The two vertical plates 142 are fixed together through the section bar 141, and the section bar 141 is clamped between the two vertical plates 142. The end of the section bar 141 is welded, riveted or bolted to the vertical plate 142. The material of profile 141 may be metallic or non-metallic. The sectional material 141 can extend infinitely in the length direction, so that in actual production, the sectional material 11 with the required length can be selected conveniently according to the requirement of a product. The riser 142 with the larger size serves as a main bearing part, the riser 14 with the smaller size serves as an auxiliary mounting part, and the two risers 142 are matched together to support other parts. The two vertical plates 142 are arranged, so that both ends of the first mounting shaft 1262 can be supported, and the movement reliability of the mechanism is improved.

After the vertical mounting base 14 is provided, most of the transmission mechanism of the letter packing device described later is mounted on the vertical mounting base 14.

In order to protect the transmission mechanisms mounted on the vertical plate 142, which will be described later, the vertical mounting base 14 further includes a protective cover 143, and the protective cover 143 covers a portion of the transmission mechanisms mounted on the vertical plate 142 with a larger size, specifically, the protective cover 143 covers the transmission mechanisms mounted on the back surface of the vertical plate 142 with a larger size, that is, the side surface far away from the other vertical plate 142, thereby increasing the reliability of the apparatus.

Referring to fig. 11 to 23, in order to open and close the protection cover 143, the vertical mounting base 14 is further provided with a power assisting mechanism 144, one end of the power assisting mechanism 144 is connected with the vertical plate 142, and the other end of the power assisting mechanism 144 is connected with the protection cover 143, so that power assistance is provided when the protection cover 143 is opened, and the operation difficulty of manually opening the protection cover 143 is reduced.

Specific implementations of the respective mechanisms are explained in detail below.

Referring to fig. 11-23, envelope opening mechanism 12 includes a first sorbent assembly 121 and a second sorbent assembly 122. The first adsorption unit 121 and the second adsorption unit 122 are mounted on the mounting base 11. The first adsorption element 121 is located above the second adsorption element 122 with a gap therebetween. First absorbent assembly 121 is configured to absorb a first surface, specifically an upper surface, of envelope 32. Second suction assembly 122 is configured to suction a second surface, specifically a lower surface, of envelope 32. First sorbent assembly 121 and second sorbent assembly 122 cooperate to open envelope 32.

During the operation, negative pressure is introduced into both the first adsorption module 121 and the second adsorption module 122. The first adsorption module 121 and the second adsorption module 122 may be provided with a negative pressure generator separately or may share a negative pressure generator.

In some embodiments, the first suction assembly 121 further includes a first negative pressure generator in communication with the first suction pad 123, the first negative pressure generator configured to provide negative pressure to the first suction pad 123. In operation, the first suction cup 123 is provided with negative pressure by the first negative pressure generator to suck the upper surface of the envelope 32 to separate the upper and lower surfaces of the envelope 32, which facilitates loading of the letter 31 into the envelope 32.

Referring to fig. 11 to 15, in some embodiments, the second suction assembly 122 includes a second suction cup 120, the second suction cup 120 is fixedly mounted on the mounting base 11, and the second suction cup 120 is located directly below or obliquely below the first suction cup 123. The second suction cup 120 is made of plastic or other deformable and softer material, so that the envelope 32 can be protected, and the probability that the envelope 32 is damaged by suction is reduced. The second suction cup 120 and the first suction cup 123 cooperate together to open the envelope 32.

Referring to fig. 11-15, in some embodiments, the second suction assembly 122 further includes a second negative pressure generator in communication with the second suction cup 120, the second negative pressure generator configured to provide negative pressure to the second suction cup 120. In operation, negative pressure is provided to the second suction cups 120 by the second negative pressure generator to suck the lower surface of the envelope 32 and prevent the lower surface of the envelope 32 from moving up with the upper surface of the envelope 32.

Referring to fig. 11 to 23, the following describes in detail the implementation of the actions of each adsorption assembly.

The first suction unit 121 is configured to be movable up and down, and when the first suction unit 121 is moved such that the first suction pad 123 is at the lowermost position and the first suction pad 123 of the first suction unit 121 is at the suction position, the first suction pad 123 is at a relatively small distance from the upper surface of the envelope 32. When the first suction cup 123 is filled with negative pressure, the upper surface of the envelope 32 can be sucked. In this process, the lower surface of envelope 32 is attracted by second attraction 122, so the lower surface of envelope 32 does not move upward with the upper surface of envelope 32, but is always in the home position, i.e., the position flush with the support surface of letter-loading station P.

Referring to fig. 11-23, in some embodiments, the first suction assembly 121 includes a first suction cup 123 and a first suction cup drive mechanism 124. First suction cup 123 is configured to suck a first surface of envelope 32. The first suction cup driving mechanism 124 is connected to the first suction cup 123, and the first suction cup driving mechanism 124 is configured to drive the first suction cup 123 to move up and down so that the first suction cup 123 is switched between a suction position and a non-suction position.

The suction position is a position where the first suction cup 123 can suck the upper surface of the envelope 32 as the first suction cup driving mechanism 124 moves. The suction position may be the lowest position, i.e., the suction position corresponds to the lowest point of the movement of the first suction pad 123. The adsorption position may also be a range, for example, within 0.5mm from the lowest position, in which case the adsorption position corresponds to a range, rather than a point.

The first suction pad 123 is made of a material having a slight deformation, such as rubber.

Referring to fig. 11 to 23, in some embodiments, the first chuck drive mechanism 124 includes a power source 125 and a cam gear mechanism 126. The power source 125 is fixed to the mounting base 11, specifically, to a vertical plate 142 of the vertical mounting base 14. The power source 125 is used to provide rotational power, such as an electric motor or other power components.

The cam gear 126 is drivingly connected to the power source 125, and the cam gear 126 is configured to convert the rotation of the power source 125 into the up-and-down movement of the first suction cup 123.

Referring to fig. 11 to 23, the cam gear mechanism 126 of the first suction cup driving mechanism 124 includes a cam 1261, a first mounting shaft 1262, and a parallelogram link assembly 1263.

The cam 1261 is rotatably mounted on the upright plate 142 of the vertical mounting base 14 and is drivingly connected to the output shaft of the power source 125. The cam 1261 is a non-circular disk-shaped structure, and the specific structural shape of the cam 1261 may be designed according to the amount of movement required hereinafter.

Referring to fig. 11-23, the first mounting shaft 1262 is rotatably coupled to the vertical mounting base 14 and the first mounting shaft 1262 is drivingly coupled to the cam 1261 such that the first mounting shaft 1262 rotates with the rotation of the cam 1261. In order to rotatably connect the first mounting shaft 1262 to the vertical mounting base 14, a bearing seat 142a is mounted on each of the two vertical plates 142, and a bearing 142b is mounted in the bearing seat 142 a. Both ends of the first mounting shaft 1262 are mounted in bearings 142 b. The first mounting shaft 1262 is parallel to the profile 141 described above and is located below the profile 142.

Referring to fig. 11-23, the first mounting shaft 1262 is drivingly connected to the cam 1261 by a drive assembly 1268, the drive assembly 1268 including a pulley 1260 and a connecting rod 1269. The connecting rod 1269 is fixed, e.g., riveted, bolted, with the first mounting shaft 1262. Rollers 1260 press against the edge of cam 1261. Since cam 1261 is not perfectly circular, roller 1260 will move up and down during rotation of cam 1261. The up and down movement of wheel 1260 is transmitted to first mounting shaft 1262 via connecting rod 1269, which applies a rotational moment to first mounting shaft 1262, so that first mounting shaft 1262 rotates about its central axis.

Referring to fig. 11-23, the parallelogram linkage assembly 1263 is drivingly connected to the first mounting shaft 1262. The parallelogram link assembly 1263 includes a first link 1264, a second link 1265 parallel to the first link 1264, a third link 1266, and a fourth link 1267.

Referring to fig. 11-23, the first link 1264 is vertically arranged and fixedly connected to the vertical mounting base 14, and specifically, the first link 1264 and the section bar 141 are welded together by bolts. The first link 1264 has a plate-like structure, and the first link 1264 has a through hole 1264 a. First mounting shaft 1262 passes through hole 1264a and through hole 1264a is sized larger than the outer diameter of first mounting shaft 1262, no torque or force is transmitted between first mounting shaft 1262 and through hole 1264 a. In other words, the through hole 1264a serves as a relief hole to prevent the first mounting shaft 1262 from being rotatably connected to the vertical plate 142.

The third and

fourth links

1266 and 1267 are parallel. One end of the third link 1266 is fixedly connected to the first mounting shaft 1262, and the other end of the third link 1266 is rotatably connected to the second link 1265. Both ends of the fourth link 1267 are rotatably connected to the first link 1264 and the second link 1265, respectively. Wherein, the first suction cup 123 is mounted on the second connecting rod 1265, and the first suction cup 123 moves along with the movement of the second connecting rod 1265.

Since the first link 1264 is vertical, the second link 1265 remains parallel to the first link 1264 regardless of its movement, based on the nature of the parallelogram link assembly 1263. The first suction cup 123 is attached to the second link 1265, and the movement of the first suction cup 123 is also the same as the second link 1265, that is, the first suction cup 123 is always kept vertical, and the movement of the first suction cup 123 has a component of vertical up-and-down movement and also has translation in the length direction of the paper feed conveyor 131. In the operation of sucking the envelope 32, the up-and-down movement of the first suction cup 123 can satisfy the sucking requirement regardless of whether the first suction cup 123 is translated or not.

Referring to fig. 11-13, a quadrilateral linkage assembly 1263 is also mounted on the smaller sized riser 142. One quadrilateral linkage assembly 1263 is connected to one end of the suction cup mounting beam 127, and the two quadrilateral linkage assemblies 1263 drive the suction cup mounting beam 127 to move together, which makes the movement of each first suction cup 123 more stable.

Referring to fig. 11-23, in some embodiments, the first suction cup drive mechanism 124 further includes a suction cup mounting beam 127, and the first suction cup 123 is coupled to the second link 1265 via the suction cup mounting beam 127. The suction cup mounting beam 127 includes a mounting groove 127a, and a plurality of first suction cups 123 having central axes parallel to each other are mounted in the mounting groove 127 a.

When the installation position of each first suction cup 123 in the installation groove 127a is adjustable, the number of the first suction cups 123 to be arranged and the distance between two adjacent first suction cups 123 can be determined according to the width W of the envelope 32 with reference to fig. 5.

In some embodiments, a mounting groove 127a may be provided for each first suction cup 123 individually, or all the first suction cups 123 may share a long mounting groove 127 a.

Referring to fig. 11-23, the suction cup mounting beam 127 can mount a plurality of first suction cups 123, and the plurality of first suction cups 123 are spaced apart so that a plurality of positions on the upper surface of the envelope 32 are sucked, and the arrangement is such that the envelope 32 is sucked open more widely and uniformly, which also facilitates the subsequent insertion of the letter 31 into the envelope 32.

Referring to fig. 11-23, in some embodiments, the first suction cup drive mechanism 124 further comprises a suction cup support beam 128, and each first suction cup 123 is connected to a suction cup mounting beam 127 by a respective suction cup support beam 128. The suction cup support beam 128 is provided to facilitate adjustment of the initial installation height of the first suction cup 123.

Referring to fig. 11 to 23, the suction cup support beam 128 is provided with an adjustment groove 128a, and the first suction cup 123 is mounted to the adjustment groove 128 a; the length direction of the adjusting groove 128a is perpendicular to the length direction of the mounting groove 127 a. By adjusting the slot 128a, the initial mounting position of the first suction cup 123 in the length direction M1 of the envelope 32 can be adjusted, see fig. 24.

Referring to fig. 11-23, in some embodiments, envelope opening mechanism 12 further comprises an envelope edging mechanism 129. The envelope edge supporting mechanism 129 comprises a supporting plate 1291 and a supporting plate driving mechanism 1292. The supporting plate transmission mechanism 1292 is connected with the first mounting shaft 1262, and the supporting plate 1291 is in driving connection with the supporting plate transmission mechanism 1292; the strut gear 1292 is configured to translate rotational movement of the first mounting shaft 1262 into linear movement of the strut 1291.

Referring to fig. 11-23, gusset 1291 is configured as a vertically folded plate, specifically, gusset 1291 includes a vertical plate 1291a and a transverse plate 1291b, which are secured together. For example, the plate is integrated or fixedly connected together by a plurality of plates. In some embodiments illustrated in fig. 10, the bottom ends of the risers 1291a are configured to be bent, and the bends are provided with elongated holes having the same length as the transverse plate 1291 b. The transverse plate 1291b is secured in the elongated aperture and the mounting position of the transverse plate 1291b is adjustable so that the lateral length of the gusset 1291 can be adjusted to accommodate the depth dimension M2 of different size envelopes 32, see fig. 24.

Referring to fig. 11-23, when the free end of cross plate 1291b enters envelope 32, cross plate 1291b acts to spread edges N1, N2 of envelope 32, see fig. 24. The free end of cross plate 1291b moves away from envelope 32 and cross plate 1291b no longer functions to hold envelope 32 open. The supporting plate 1291 is located above the paper feeding and conveying belt 131, that is, the letter 31 is located between the transverse plate 1291b of the supporting plate 1291 and the letter output and conveying belt 162, and the letter 31 is located below the transverse plate 1291b of the supporting plate 1291.

Referring to fig. 11-23, in some embodiments, the spreader drive 1292 includes a first bar 1293, a second bar 1294, a temple slide 1295, and a temple guide 1296.

The first end of the first rod 1293 is secured with the first mounting shaft 1262. A first end of the second bar 1294 is hinged to a second end of the first bar 1293. A shoring sliding block 1295 is hinged with the second end of the second rod 1294, and a shoring plate 1291 is fixed on the shoring sliding block 1295. A temple rail 1296 and a temple slider 1295 are mounted to the temple rail 1296. The length direction of the edge-support guide 1296 is parallel to the conveying direction of the sheet-conveying belt 131. Wherein the slide block of the supporting plate 1291 moves linearly along the supporting edge guide rail 1296 as the first mounting shaft 1262 rotates.

The rotation of the first shaft 1262 drives the first rod 1293 and thus the second rod 1294 hinged to the first rod 1293. The second end of the second bar 1294 is hingedly connected to the temple slide 1295 such that rotation of the second bar 1294 will pull the temple slide 1295 into linear sliding movement relative to the temple guide 1296. This linear movement directly causes the support plate 1291, which is fixedly attached to the temple bar 1295, to also move linearly along the guide length of the temple bar 1296.

Referring to fig. 11-23, in some embodiments, envelope edging mechanism 129 further comprises a gusset mounting beam 1297, and gusset 1291 is fixedly connected to edging block 1295 by gusset mounting beam 1297; the spreader mounting beam 1297 is parallel to the first mounting shaft 1262. A spreader mounting beam 1297 is provided to facilitate the mounting of a plurality of spreaders 1291. Referring to fig. 11-19, on the side of the smaller size riser 142, a set of envelope edging mechanisms 129 is also provided, the envelope edging mechanisms 129 also including a first bar 1293, a second bar 1294, an edging block 1295, and an edging rail 1296. A set of envelope edge-supporting mechanisms 129 are provided at each end of the spreader bar 1297, which allows the spreader bar 1297 to be supported at both ends for more stable and reliable movement.

Referring to fig. 11-24, in some embodiments, gusset mounting beam 1297 mounts two gussets 1291, which cooperate to brace the open edge of envelope 32. In practical use, the two supporting plates 1291 can support two edges N1 and N2 in the length direction of the envelope 32, so that paper can be smoothly put into the envelope 32, and the edges of the paper are not easy to bend in the process of filling the letter 31.

Referring to fig. 11-23, in some embodiments, the cam gear 126 further includes a pulley drive mechanism 1270, the pulley drive mechanism 1270 including a first pulley 1271, a second pulley 1272, and a conveyor belt 1273. The first pulley 1271 is coaxially fixed to the output shaft 125a of the power source 125, and the second pulley 1272 is coaxially mounted to the cam 1261. The conveyor belt 1273 wraps around the first and

second pulleys

1271 and 1272 and is tensioned by the first and

second pulleys

1271 and 1272. Where cam 1261 is driven by pulley drive mechanism 1270 and power source 125.

The output shaft 125a of the power source 125 drives the first belt wheel 1271 to rotate, and the first belt wheel 1271 drives the second belt wheel 1272 to rotate through the conveying belt 1273.

Referring to fig. 11-23, in some embodiments, the paper transport mechanism 13 includes a paper transport belt 131 and a paper pushing mechanism 132 located downstream of the paper transport belt 131. The sheet feed conveyor belt 131 and the sheet pushing mechanism 132 are mounted on the mounting base 11. The sheet feed conveyor 131 feeds the sheet to the sheet pushing mechanism 132, and the sheet pushing mechanism 132 pushes the sheet into the opened envelope 32.

It should be noted that in some of the foregoing embodiments, the sheet material discharging device 20 is provided with a paper moving mechanism 27. The sheet transfer mechanism 27 and the sheet feed conveyor belt 131 here may be present at the same time. In this case, the sheet transfer mechanism 27 is located upstream of the sheet feed conveyor belt 131. Alternatively, the paper transfer mechanism 27 and the paper conveying mechanism 13 may be selected from one another, such as the paper transfer mechanism 27. In this case, the paper feeding displacement of the paper feeding mechanism 27 is set so that the sheet material 30 is smoothly discharged from the sheet material discharging device 20 to the position where the sheet material discharging device 10 needs to be located.

Referring to fig. 11-23, in some embodiments, the paper pushing mechanism 132 includes a paper pushing lever 1321 and a paper pushing lever actuator 1322. The push lever 1321 is configured to push the letter 31. The paper push rod actuator 1322 is drivingly connected to the power source 125, the paper push rod actuator 1322 being configured to convert the rotation of the power source 125 into a paper pushing motion. The paper pushing rod 1321 is drivingly connected with a paper pushing rod transmission mechanism 1322.

The paper pushing rod driving mechanism 1322 uses, for example, a link mechanism to achieve power transmission, but may also use other structures to achieve its function.

Referring to fig. 11-23, in some embodiments, the push rod actuator 1322 includes a crank 1323, a fifth link 1324, a push rod slide 1325, and a push rod guide 1326.

The crank 1323 is coaxial with and fixed to the cam 1261. The fifth link 1324 has one end rotatably connected to the crank 1323. The paper pushing rod block 1325 is hinged to the other end of the fifth link 1324, and the paper pushing rod 1321 and the paper pushing rod block 1325 are mounted together. The push rod slide 1325 is mounted to the push rod guide 1326. The pusher guide 1326 is configured such that the pusher shoe 1325 moves linearly along the pusher guide 1326.

Referring to fig. 11-23, in some embodiments, the paper push rod actuator 1322 further includes a swing rod 1327 and an arcuate rail 1328. The shape of the arcuate guide 1328 defines the travel path of the pusher arm 1321. The swing lever 1327 has one end rotatably connected to the paper pushing lever block 1325 and the other end connected to the paper pushing lever 1321. One end of the swing lever 1327 is rotatably connected to the paper pushing lever block 1325 via a transition lever 1325 a. The transition lever 1325a and the paper pushing lever block 1325 are fixed together by bolts without relative movement and rotation therebetween. Transition lever 1325a provides a transition to facilitate installation of swing lever 1327.

The arcuate guide 1328 is adjacent the swing lever 1327, and the arcuate guide 1328 guides the swing lever 1327. The arcuate rail 1328 is secured to the upright mounting base 14. The curved rail 1328 has a curved seating surface 1328a, and the curved rail 1328 is formed in an arc shape as a whole, or only the curved seating surface 1328a may be provided. The arc support surface 1328a is an arc having the same or different curvature everywhere. The moving trajectory of the paper pushing lever 1321 coincides with the shape of the arc-shaped support surface 1328 a. Wherein the paper pushing lever 1321 is configured to move along the arc support surface 1328a of the arc guide 1328 in accordance with the linear movement of the swing lever 1327. As a whole, the movement of the paper pushing lever 1321 appears to be closer to the letter 31 in the height direction when the letter 31 is pushed forward in the direction a; when the letter is reset, the paper pushing rod 1321 moves backward in the direction a, and the paper pushing rod 1321 moves upward in the height direction in addition to the backward movement, so that the letter 31 is prevented from being blocked by the paper pushing rod 1321, and the probability that the letter 31 smoothly enters the envelope 32 is increased.

Referring to fig. 11-23, in some embodiments, the push rod actuator 1322 further includes a push rod mounting beam 1329. The push bar mounting beam 1329 is parallel to the first mounting shaft 1262 and the push bar mounting beam 1329 is fixed with the swing lever 1327. The portion of the paper pushing lever mounting beam 1329 extending out of the swing lever 1327 contacts the arc support surface 1328a of the arc rail 1328. The push lever 1321 is mounted to be connected to the swing lever 1327 via a push lever mounting beam 1329.

Referring to fig. 11-23, in some embodiments, a push rod mounting beam 1329 mounts a plurality of spaced apart push rods 1321. The spacing of the paper pushing rods 1321 is related to the width of the letter 31, and if the width of the letter 31 is large, the spacing of the paper pushing rods 1321 is large; otherwise, it is small. The plurality of paper pushing bars 1321 move synchronously and are driven by the same set of mechanism. The plurality of paper pushing levers 1321 push the letter 31 together, so that the force applied to the letter 31 is more balanced.

Referring to fig. 11-23, in some embodiments, the letter enclosure 10 further includes an envelope pressing mechanism 15, the envelope pressing mechanism 15 including a pressure plate 151, the pressure plate 151 being rotatably mounted to the mounting base 11. The pressing plate 151 is configured to switch between a pressed state and a released state. Wherein, when the pressing plate 151 is in a pressing state, the pressing plate 151 presses the sealing part 32a of the second surface of the envelope 32; when the pressing plate 151 is in the released state, the pressing plate 151 is away from the flap 32a of the second surface of the envelope 32.

The platen 151 may be motor driven or otherwise rotated. The platen 151 rotates in a range of 0 to a, where a is less than or equal to 90. Wherein 0 ° means a position where the pressing plate 151 presses the sealing portion 32a of the second surface of the envelope 32, and the sealing portion 32a is pressed by the pressing plate 151 in addition to the lower surface of the envelope 32 sucked by the second suction cup 120. This allows the letter 31 to smoothly enter the envelope 32. The platen 151 is now flush with the surface of the letter loading station P. When the pressing plate 151 rotates to be not flush with the surface of the letter loading station P, all the adsorption components are loosened, and the letters are in a free state, so that convenience is provided for outputting the letters subsequently.

The following describes the procedure of the letter loading action as a whole.

As shown in fig. 1, 11-24, some embodiments of the present invention are implemented by a single power source 125, two sets of slider-crank mechanisms, a set of four-bar mechanisms, and two sets of cam mechanisms.

The operation of sucking the upper surface of the envelope 32 by the first suction tray 123, the operation of opening the edge of the envelope 32 by the stay 1291, and the operation of pushing the letter 31 into the envelope 32 by the paper pushing lever 1321 are driven by the same power source 125.

When the power source 125 rotates at a constant speed, the following four actions are performed:

movement 1: the paper pushing lever 1321 reciprocates laterally in the direction a to push the letter 31 inside the envelope 32;

and (3) movement 2: when the paper pushing lever 1321 moves backward, the paper pushing lever 1321 moves upward while moving backward due to the guide of the arc supporting surface 1328a of the arc guide 1328, so that the envelope 32 is smoothly entered with the envelope, and the letter 31 is prevented from being caught by the paper pushing lever 1321.

And (3) movement: the first suction cup 123 moves up and down to suck and discharge the upper surface of the envelope 32.

And (4) movement: the supporting plate 1291 horizontally reciprocates, and has the function of inserting the supporting plates 1291 at two sides into the inner edge of the envelope 32 when the envelope is sucked by the first suction disc 123, so that the letter 31 can smoothly enter the envelope 32 and cannot be warped due to air flow or static electricity; the supporting plate 1291 also functions as a grounding member for eliminating static electricity. In addition, negative ion air blowing is also carried out to eliminate static electricity when the letter 31 enters, and the paper is guaranteed to successfully enter the envelope.

The continuous automatic high-speed reliable packaging movement is realized through the four reciprocating periodic cycle movements, and the single-motor uniform-speed movement is very simple to control and saves the cost.

The letter packaging device 10 provided by the technical scheme realizes automatic separation of the integrated paper stack and automatic loading of the integrated paper stack into the envelope, and realizes extremely high envelope loading efficiency.

Referring to fig. 11-16, in some embodiments, the letter packaging appliance 10 further includes a letter output mechanism 16. A letter output mechanism 16 is mounted to the mounting base 11, the letter output mechanism 16 being configured to push an envelope 32 containing a letter 31 away from the envelope opening mechanism 12. The letter output mechanism 16 is, for example, a telescopic rod, and when the letter needs to be pushed away, the letter output mechanism 16 extends. After pushing the letter open, the letter output mechanism 16 is retracted. The letter output mechanism 16 can be driven by a plurality of means, such as pneumatic, hydraulic, electric, etc.

Referring to fig. 1 and 13, in some embodiments, the letter output mechanism 16 includes a pusher 161, a letter output conveyor 162, and a pinch roller 163. The length direction of the push rod 161 is perpendicular to the conveying direction of the paper conveying belt 131, and the push rod 161 is telescopically mounted on the mounting base 11.

The letter output conveyer 162 is provided downstream of the push rod 161, and the letter output conveyer 162 is mounted on the mounting seat 11. The pinch rollers 163 are mounted above the letter output conveyor 162, and the pinch rollers 163 are configured to increase the friction of the envelopes 32 and the letter output conveyor 162, so that the envelopes 32 pushed onto the letter output conveyor 162 by the push rods 161 move along with the letter output conveyor 162.

Referring to fig. 1-13, in some embodiments, letter output mechanism 16 further includes a puck mounting mechanism 164. The puck mounting mechanism 164 includes a second mounting shaft 165, a mounting bar 166, a third mounting shaft 167, and a tension spring 168. One or more pinch rollers 163 may be mounted on a second mounting shaft 165. The second mounting shaft 165 is fixed to the mounting base 11. A first end of mounting lever 166 is rotatably coupled to second mounting shaft 165, and a second end of mounting lever 166 is rotatably coupled to puck 163. The third mounting shaft 167 is located between the second mounting shaft 165 and the letter output conveyor 162, the first end of the tension spring 168 is fixed to the third mounting shaft 167, and the second end of the tension spring 168 is fixed to the pressing wheel 163.

Tension spring 168 holds puck 163 at all times. Since the tension spring 168 is located below the pinch roller 163, this causes the pinch roller 163 to press against the upper surface of the letter output conveyor 162. The letter output conveyer belt 162 is in close contact with the letter output conveyer belt all the time in the conveying process, so that the deviation of the letter is prevented or the letter is not conveyed out due to too small friction force.

Referring to FIG. 13, puck mounting mechanism 164 can be provided in two sets, each set providing one or more pucks 163. One set is at the beginning of the letter output conveyor 162 and the other set is at the end of the letter output conveyor 162. If the length of the letter output conveyor 162 is relatively long, a pinch roller 163 and a pinch roller mounting mechanism 164 may be disposed at an intermediate position of the letter output conveyor 162.

Referring to fig. 1-23, in some embodiments, the letter enclosure 10 also includes at least one of a negative ion air-blowing and de-static brush 28. An anion air blower is mounted to the mounting base 11, and the anion air blower is configured to remove static electricity from the envelope 32 and/or letter 31. The destaticizing brush 28 is also used to destaticize the letter 31 or envelope 32. The negative ion air blower of the letter packaging device 10 is arranged in plural, and plural negative ion air blowers face the letter loading station P.

The following generally describes a specific implementation of the letter packaging system.

As shown in fig. 1, the letter packaging system is divided into four parts, a sheet material discharge device for outputting letters, a sheet material discharge device for outputting envelopes, a letter packaging device 10 for loading letters into envelopes, and a letter output conveyor 161 for transporting letters away. The letter packing device 10 and the letter output conveyor 161 can be seen as one whole. In some of the above embodiments, the stack delivery line is included as part of the letter encapsulation device 10.

The paper output by the four flaky material discharging devices for outputting the letter can be the same or different. The sheet material discharge device 20 discharges each paper in turn, there being a second buffer 247 for storing letters 31. The paper moving rod 272 of the paper moving mechanism 27 is used for peeling off the letter 31 located in the second temporary storage area 247. Since the influence of static electricity or air resistance occurs during peeling, the position of the sheet is inaccurate at the moment of falling, and the sheet is skewed. Through setting up two and move paper pole 272 and remove paper jointly for paper cooperates the backplate 214 of both sides and can be regular neat paper in advancing the in-process, has realized that many paper align fast. In order to further eliminate static electricity, the sheet material discharging device is provided with an electrostatic removing brush 28, and another effect of the electrostatic removing brush 28 is designed to block the paper which is rapidly discharged so that the paper does not fly out.

One envelope is normally used and the other envelope is reserved; or both may be used. Because the envelopes are thick, the stacked number of the envelopes is small relative to the number of the paper sheets, two sheet material discharging devices for discharging the envelopes are arranged, and one sheet material discharging device is standby, so that the material supplementing of workers can be facilitated.

After the paper stack and the envelope are output, the envelope packaging operation is performed in the letter packaging device 10, and the specific packaging action is described above. And outputting the packaged product to a packaging mechanism for packaging. In order to further eliminate static electricity and ensure that the paper can smoothly enter the envelope, a static electricity removing device 25 can be arranged at a required position, and the static electricity removing device 25 adopts negative ion air blowing. The transport line downstream of the letter sealing device 10 is perpendicular to the direction of discharge movement of the envelopes and sheets.

At the instant the envelope is completed, both the first suction cup 123 and the second suction cup 120 release the envelope 32 and the push rod 161 pushes away the envelope 32 with the envelope 31 filled. The envelope 32 contacts the envelope output conveyor 162 and is rapidly conveyed to the buffer conveyor line to complete the packing task when reaching the pinch roller 163.

The letter packaging system provided by the technical scheme realizes automatic stacking and tidy envelope filling of paper or small articles. The technical scheme can be applied to the fields of ticket cards, invoices, leaflets, specifications, complete commodity accessory sets and the like, and fills the current situation of vacancy of the current paper packaging equipment.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A letter packaging appliance, comprising:

a mounting (11) configured to provide support, the mounting (11) including a letter-loading station;

an envelope opening mechanism (12) which comprises a first adsorption component (121) and a second adsorption component (122) which are both arranged on the mounting seat (11); the first adsorption component (121) is positioned above the second adsorption component (122) and a gap is formed between the first adsorption component and the second adsorption component; the first adsorption component (121) is configured to adsorb a first surface of the envelope (32), and the second adsorption component (122) is configured to adsorb a second surface of the envelope (32); the first and second suction assemblies (121, 122) cooperating to open the envelope (32);

the paper conveying mechanism (13) comprises paper pushing mechanisms (132), and the paper pushing mechanisms (132) are all installed on the installation seat (11); the paper pushing mechanism (132) is configured to push a letter (31) into the opened envelope (32); and

a letter output mechanism (16) mounted to the mounting base (11), the letter output mechanism (16) being configured to push an envelope containing a letter away from the envelope opening mechanism (12);

wherein the letter output mechanism (16) comprises:

the length direction of the push rod (161) is perpendicular to the paper pushing direction of the paper pushing mechanism (132), and the push rod (161) is telescopically mounted on the mounting seat (11);

a letter output conveyor belt (162) arranged downstream of the push rod (161), the letter output conveyor belt (162) being mounted on the mounting seat (11); and

a pinch roller (163) mounted above the letter output conveyor (162), the pinch roller (163) configured to increase friction between the envelopes and the letter output conveyor (162) such that the envelopes pushed onto the letter output conveyor (162) by the push rod (161) move with the letter output conveyor (162).

2. The letter package device according to claim 1, characterized in that said first suction assembly (121) comprises:

a first suction cup (123) configured to suck a first surface of the envelope (32); and

a first chuck driving mechanism (124) connected to the first chuck (123); the first suction cup driving mechanism (124) is configured to drive the first suction cup (123) to move up and down so that the first suction cup (123) is switched between a suction position and a non-suction position.

3. The letter pack device according to claim 2, wherein the first suction cup drive mechanism (124) comprises:

a power source (125) configured to provide rotational power, the power source (125) being mounted to the mount (11); and

the cam transmission mechanism (126) is in driving connection with the power source (125) and is in driving connection with the first sucker (123); and the cam gear (126) is configured to convert the rotation of the power source (125) into the up-and-down movement of the first suction cup (123).

4. The letter packaging appliance of claim 3, further comprising:

a vertical mounting base (14) fixed to the mounting base (11); the power source (125) is mounted on the mounting base (11) through the vertical mounting base (14);

the cam gear (126) includes:

a cam (1261) rotatably mounted on the vertical mounting base (14) and connected with the output shaft of the power source (125) in a driving way;

a first mounting shaft (1262) rotatably coupled to the vertical mounting base (14), the first mounting shaft (1262) being drivingly coupled to the cam (1261) such that the first mounting shaft (1262) rotates with rotation of the cam (1261); and

a parallelogram linkage assembly (1263) drivingly connected to the first mounting shaft (1262), the parallelogram linkage assembly (1263) including a first link (1264), a second link (1265) parallel to the first link (1264), a third link (1266), and a fourth link (1267); the first link (1264) is parallel to the second link (1265); the first connecting rod (1264) is vertical and is fixedly connected with the vertical mounting base (14); the third link (1266) and the fourth link (1267) are parallel; one end of the third connecting rod (1266) is fixedly connected with the first mounting shaft (1262), and the other end of the third connecting rod (1266) is rotatably connected with the second connecting rod (1265); the two ends of the fourth connecting rod (1267) are respectively and rotatably connected with the first connecting rod (1264) and the second connecting rod (1265);

wherein the first suction cup (123) is mounted to the second link (1265).

5. The letter pack device according to claim 4, wherein said cam-actuating mechanism (126) further comprises:

a transmission assembly (1268) including a pulley (1260) and a connecting rod (1269), the pulley (1260) being rotatably mounted to a first end of the connecting rod (1269), a second end of the connecting rod (1269) being fixedly connected to the first mounting shaft (1262); the turning wheel (1260) presses against the edge of the cam (1261).

6. The letter pack device according to claim 4, wherein the first suction cup drive mechanism (124) further comprises:

a suction cup mounting beam (127), the first suction cup (123) connected to the second link (1265) through the suction cup mounting beam (127); the sucker mounting beam (127) comprises a mounting groove (127a), and a plurality of first suckers (123) with central axes parallel to each other are mounted in the mounting groove (127 a).

7. The letter pack device according to claim 6, wherein the first suction cup drive mechanism (124) further comprises:

a suction cup support beam (128), each first suction cup (123) being connected to the suction cup mounting beam (127) through the respective suction cup support beam (128).

8. The letter package according to claim 7, characterized in that the suction cup support beam (128) is provided with an adjustment groove (128a), the first suction cup (123) being mounted to the adjustment groove (128 a); wherein the length direction of the adjusting groove (128a) is perpendicular to the length direction of the mounting groove (127 a).

9. A letter enclosing device according to claim 4, characterized in that the envelope opening mechanism (12) further comprises:

the envelope edge supporting mechanism (129) comprises a supporting plate (1291) and a supporting plate transmission mechanism (1292); the supporting plate transmission mechanism (1292) is connected with the first mounting shaft (1262), and the supporting plate (1291) is in driving connection with the supporting plate transmission mechanism (1292); the spreader transmission mechanism (1292) is configured to convert the rotation of the first mounting shaft (1262) into linear motion of the spreader plate (1291) in a horizontal plane.

10. A letter wrapping device according to claim 9, characterised in that the envelope edging mechanism (129) comprises:

a first rod (1293) having a first end secured to the first mounting shaft (1262);

a second bar (1294) hinged at a first end to a second end of said first bar (1293);

a shoring sliding block (1295) hinged with the second end of the second rod piece (1294), wherein the supporting plate (1291) is fixed on the shoring sliding block (1295); and

a temple bar (1296), said temple bar slide (1295) being mounted to said temple bar (1296);

wherein the temple slider (1295) moves linearly along the temple guide rail (1296) with the rotation of the first mounting shaft (1262).

11. A letter wrapping device according to claim 10, characterised in that the envelope edging mechanism (129) further comprises:

the supporting plate mounting beam (1297) is used for fixedly connecting the supporting plate (1291) with the supporting edge slide block (1295) through the supporting plate mounting beam (1297); the spreader mounting beam (1297) is parallel to the first mounting shaft (1262).

12. The letter pack device according to claim 11, characterized in that the spreader mounting beam (1297) mounts two spreaders (1291), the two spreaders (1291) cooperating together to brace the open edge of the envelope.

13. The letter package device according to claim 2, characterized in that said second suction assembly (122) comprises:

and a second suction cup (120) fixedly mounted on the mounting base (11), wherein the second suction cup (120) is positioned right below or obliquely below the first suction cup (123).

14. The letter pack device according to claim 4, wherein said cam-actuating mechanism (126) further comprises:

a pulley drive mechanism (1270) including a first pulley (1271), a second pulley (1272), and a conveyor belt (1273), the first pulley (1271) being coaxially fixed with a conveying shaft of the power source (125), the second pulley (1272) being coaxially mounted with the cam (1261), the conveyor belt (1273) being wound around the first pulley (1271) and the second pulley (1272);

wherein the cam (1261) is driven by the pulley drive mechanism (1270) and the power source (125).

15. The letter wrapping device according to claim 4, wherein said paper pushing mechanism (132) comprises:

a paper pushing lever (1321) configured to push paper; and

a paper push rod transmission mechanism (1322) drivingly connected to the power source (125), the paper push rod transmission mechanism (1322) configured to convert rotation of the power source (125) into a paper push motion; the paper pushing rod (1321) is in driving connection with the paper pushing rod transmission mechanism (1322).

16. A letter enclosing device according to claim 15, characterized in that the push bar actuator (1322) comprises:

a crank (1323) coaxial with and fixed to the cam (1261);

a fifth connecting rod (1324) with one end rotatably connected with the crank (1323);

the paper pushing rod sliding block (1325) is hinged with the other end of the fifth connecting rod (1324), and the paper pushing rod (1321) and the paper pushing rod sliding block (1325) are installed together; and

a paper pushing rod guide rail (1326), wherein the paper pushing rod sliding block (1325) is arranged on the paper pushing rod guide rail (1326); the push rod guide 1326 is configured such that the push rod slider 1325 moves linearly along the push rod guide 1326.

17. A letter enclosing device according to claim 16, characterized in that the push bar actuator (1322) further comprises:

a swinging rod (1327), one end of which is rotatably connected with the paper pushing rod sliding block (1325), and the other end of which is connected with the paper pushing rod (1321); and

an arc-shaped guide rail (1328) which is adjacent to the swinging rod (1327), the arc-shaped guide rail (1328) is fixed on the vertical mounting base (14), the arc-shaped guide rail (1328) is provided with an arc-shaped supporting surface, and the moving track of the paper pushing rod (1321) is consistent with the shape of the arc-shaped supporting surface;

wherein the paper pushing lever 1321 is configured to move along the arc-shaped support surface of the arc-shaped guide rail 1328 in accordance with the linear movement of the swing lever 1327.

18. A letter enclosing device according to claim 17, characterized in that the push bar actuator (1322) further comprises:

the paper pushing rod mounting beam (1329) is parallel to the first mounting shaft (1262), the paper pushing rod mounting beam (1329) and the swinging rod (1327) are fixed together, and the part of the paper pushing rod mounting beam (1329) extending out of the swinging rod (1327) is in contact with the arc-shaped supporting surface of the arc-shaped guide rail (1328); the paper pushing rod (1321) is connected with the swinging rod (1327) through the paper pushing rod mounting beam (1329).

19. The letter pack device according to claim 18, characterized in that said push-bar mounting beam (1329) mounts a plurality of said push-bars (1321) arranged at intervals.

20. The letter packaging appliance of claim 1, further comprising:

the envelope pressing mechanism (15) comprises a pressing plate (151), and the pressing plate (151) is rotatably arranged on the mounting seat (11); the pressure plate (151) is configured to be switched between a pressed state and a released state;

when the pressing plate (151) is in a pressing state, the pressing plate (151) presses the sealing part of the second surface of the envelope; when the pressure plate (151) is in an unclamped state, the pressure plate (151) is away from the seal portion of the second surface of the envelope.

21. The letter packaging appliance of claim 20, wherein said letter output mechanism (16) further includes:

the pinch roller mounting mechanism (164) comprises a second mounting shaft (165), a mounting rod (166), a third mounting shaft (167) and a tension spring (168); the second mounting shaft (165) is fixed to the mounting base (11); a first end of the mounting lever (166) is rotatably coupled to the second mounting shaft (165), and a second end of the mounting lever (166) is rotatably coupled to the pressure wheel (163); the third installation axle (167) is located between the second installation axle (165) and the letter output conveyer belt (162), the first end of extension spring (168) with the third installation axle (167) is fixed, the second end of extension spring (168) with pinch roller (163) is fixed.

22. The letter packaging appliance of claim 1, further comprising:

a static charge removing device (25) mounted to the mounting base (11), the static charge removing device (25) configured to remove static charge from envelopes and/or letters.

23. A letter packaging system, comprising a letter packaging arrangement (10) according to any one of claims 1-22.