Document loading device

Abstract

The utility model provides a document filling device, which comprises a frame, and a document tightening mechanism, an envelope opening and closing mechanism, a paper feeding mechanism and a paper transporting mechanism, which are all arranged on the frame and arranged in sequence in the horizontal direction. The envelope opening and closing mechanism comprises a suction cup, which is movably arranged up and down to open the envelope. The paper feeding mechanism comprises a paper feeding assembly, which comprises a paper feeding fixing frame, a bottom sheet metal and a top sheet metal. A gap for accommodating documents is arranged between the top sheet metal and the bottom sheet metal, the bottom sheet metal is provided with a lower groove, and the top sheet metal is provided with an upper groove. The paper feeding assembly comprises an upper paper position and a lower paper position on its moving track. The document tightening mechanism comprises a pressure rod, which comprises a pressure position and a lifting position on its rotation track, and when the paper feeding assembly is located at the lower paper position, the pressure rod rotates to the pressure position. The paper transporting mechanism is used to feed the document into the gap. The utility model provides a document filling device, which ensures that no wrinkles or damage to the document will occur during the process of loading the document into the envelope.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a document filling device. Background Art

[0002] In the document express delivery industry, there are many types of documents with different sizes. When facing a large batch of documents, in line with the principle of economy, a special type of envelope may be designed for such documents to match the size of the document and the envelope, which means that the size of the document and the envelope are not much different. When such soft-bound documents need to be mailed to different recipients, the documents are prone to wrinkles due to their soft texture, causing damage to the documents.

[0003] Therefore, it is necessary to provide a document filling device to solve the above technical problems. Utility Model Content

[0004] The utility model provides a document filling device, which can prevent wrinkles or damage to the document during the process of loading the document into an envelope.

[0005] The technical solution of the utility model is:

[0006] A document filling device, used for filling documents into envelopes, characterized by comprising a frame, and a document tightening mechanism, an envelope opening and closing mechanism, a paper feeding mechanism and a paper transporting mechanism, all of which are arranged on the frame and arranged in sequence in a transverse direction;

[0007] The envelope opening and closing mechanism comprises a suction cup and an opening and closing driving member; the suction cup is movably arranged in the vertical direction; the opening and closing driving member is connected to the suction cup and is used to drive the suction cup to move vertically to open the envelope opening;

[0008] The paper feeding mechanism comprises a paper feeding assembly and a paper feeding driving assembly; the paper feeding assembly comprises a paper feeding fixing frame, a bottom sheet metal and a top sheet metal; the paper feeding fixing frame is slidably arranged on the frame in a transverse direction, the top sheet metal and the bottom sheet metal are both connected to the paper feeding fixing frame, the top sheet metal is located above the bottom sheet metal, a gap for accommodating documents is arranged between the two, the bottom sheet metal is provided with a lower groove at one end close to the opening and closing envelope mechanism, the top sheet metal is provided with an upper groove at one end close to the opening and closing envelope mechanism, and the lower groove and the upper groove have an overlap; the paper feeding assembly is movably arranged in a transverse direction, and the paper feeding assembly comprises an upper paper position and a lower paper position on its moving track, the lower paper position is close to the document tightening mechanism relative to the upper paper position, and when the paper feeding assembly is located at the lower paper position, the top sheet metal and the bottom sheet metal are located below the suction cup; the paper feeding driving assembly is connected to the paper feeding assembly, and is used to drive the paper feeding assembly to move in a transverse direction to enter and exit the envelope;

[0009] The document clamping mechanism comprises a pressure rod and a clamping driving member; the pressure rod is rotatably arranged, and the pressure rod comprises a pressure position and a lifting position on its rotation track, and when the paper feeding assembly is located at the lower paper position, the pressure rod rotates to the pressure position to clamp the documents at the lower slot and the upper slot; the clamping driving member is connected to the pressure rod, and is used to drive the pressure rod to rotate;

[0010] The paper transport mechanism is used to transport the document into the gap.

[0011] In the document filling device described in the utility model, the opening and closing envelope mechanism also includes an opening and closing fixing frame, which is arranged on the frame, and a guide wheel is arranged on the opening and closing fixing frame. The guide wheel is located on the side of the suction cup away from the document tightening mechanism, and is used to press the top sheet metal toward the bottom sheet metal.

[0012] In the document filling device described in the utility model, the document filling device also includes a spring positioning mechanism, which includes:

[0013] a rotating member, which is rotatably connected to the opening and closing fixed frame, and a roller is disposed at the bottom end of the rotating member; and

[0014] An elastic member connected between the opening and closing fixing frame and the rotating member, and used for driving the bottom end of the rotating member to move toward the top sheet metal and the bottom sheet metal;

[0015] When the paper feeding assembly is located at the upper paper position, one end of the top sheet metal and / or the bottom sheet metal close to the file clamping mechanism abuts against the bottom end of the rotating member;

[0016] When the paper feeding assembly moves from the upper paper position to the lower paper position, the paper feeding assembly pushes the bottom end of the rotating member to rotate toward the suction cup, and the top sheet metal abuts against the roller.

[0017] In the document filling device of the utility model, the document filling device also includes a non-return mechanism, which includes:

[0018] A non-return frame connected to the paper feeding fixed frame;

[0019] A guide shaft, which is vertically slidably disposed on the anti-return frame;

[0020] A pull plate connected to the top end of the guide shaft, the pull plate being provided with a connection port opening toward the paper transport mechanism;

[0021] A pressure plate connected to the bottom end of the guide shaft;

[0022] A limit shaft connected to the pressure plate, the limit shaft is movably arranged along the vertical direction, and the limit shaft includes a non-return position and a disengagement position on its movement track. When the limit shaft is located at the disengagement position, the limit shaft is located above the top sheet metal, and when the limit shaft is located at the non-return position, the limit shaft penetrates the top sheet metal and the bottom sheet metal;

[0023] a non-return compression spring, which is arranged between the non-return frame and the pressure plate, and is used to drive the limit shaft to move toward the non-return position; and

[0024] A check cylinder is arranged on the frame and located above the check frame. A limit head is arranged on the piston rod of the check cylinder. When the paper feeding assembly is located at the upper paper position, the piston rod of the check cylinder passes through the connecting port, and the limit head abuts against the lower part of the connecting port. The check cylinder is used to drive the limit shaft to move toward the disengagement position.

[0025] When the paper feeding assembly moves from the upper paper position to the lower paper position, the piston rod of the check cylinder is separated from the connecting port.

[0026] In the document filling device of the utility model, the opening and closing fixing frame is provided with a through hole, and the opening and closing envelope mechanism further comprises:

[0027] A photoelectric sensor is disposed on the opening and closing fixing frame; and

[0028] a code disk, which is rotatably disposed in the through hole and is disposed adjacent to the suction cup, wherein the code disk includes an original position and a trigger position on its rotation trajectory, wherein when the code disk is located at the original position, the code disk is out of the slot of the photoelectric sensor, and when the code disk is located at the trigger position, the code disk is located in the slot of the photoelectric sensor; and,

[0029] A return spring is connected to the code disc and is used to drive the code disc to rotate from the trigger position to the original position.

[0030] In the document filling device described in the utility model, the suction cup is provided in two, and the envelope opening and closing mechanism also includes a connecting plate arranged along the longitudinal direction, which connects the two suction cups and the opening and closing driving member, and two long holes are arranged on the connecting plate, and the long holes extend along the longitudinal direction, and the two suction cups are respectively arranged in the two long holes.

[0031] In the document filling device described in the utility model, an upper slide groove extending in the transverse direction is provided at one end of the top sheet metal away from the upper groove, and a lower slide groove extending in the transverse direction is provided at one end of the bottom sheet metal away from the lower groove, and the upper slide groove and the lower slide groove have an overlap; the paper transport mechanism includes:

[0032] a channel conveying module, comprising a conveying belt, for conveying the document in a transverse direction toward the paper feeding mechanism;

[0033] A paper pushing module, which is located between the channel conveying module and the paper feeding mechanism and below the paper feeding assembly, and is used to push the documents on the conveying belt into the gap, and comprises a pushing block, a paper pushing clamp, an angle control follower and a paper pushing driving member; the pushing block is arranged to slide horizontally at the bottom of the frame; the paper pushing clamp is movably inserted into the upper slide groove and the lower slide groove, and the paper pushing clamp comprises a first section and a second section, the first section and the second section are arranged horizontally, the second section is close to the paper feeding assembly relative to the first section, and is inclined upward, and one end of the first section is rotatably connected to the pushing block , and the other end is connected to one end of the second section; the angle control follower is connected to the frame and abuts against the paper pushing clamp; the paper pushing driving member is connected to the pushing block, for driving the pushing block and the paper pushing clamp to move laterally; when the second section abuts against the angle control follower, the paper pushing clamp rotates relative to the pushing block as the pushing block moves laterally to enter or move out of the upper slide groove and the lower slide groove; when the first section abuts against the angle control follower, the length direction of the first section is parallel to the sliding direction of the paper pushing clamp, and the other end of the second section slides along the upper slide groove and the lower slide groove.

[0034] In the document filling device described in the utility model, the angle control follower is arranged above the paper pushing clamp, and a paper pushing compression spring is connected between the first section and the pushing block, and the paper pushing compression spring is used to provide an elastic force for the paper pushing clamp to rotate upward so that the paper pushing clamp and the angle control follower remain in contact.

[0035] In the document filling device described in the utility model, the channel conveying module is also provided with a guide plate, which includes an inclined section and a limiting section. The inclined section is inclined relative to the conveyor belt, the top of the inclined section is connected to the frame, the bottom end of the inclined section extends toward the paper feeding assembly and is connected to one end of the limiting section, the other end of the limiting section extends toward the paper feeding assembly, and the limiting section is arranged at the paper inlet of the gap to align the document with the gap.

[0036] In the document filling device described in the utility model, the document filling device also includes a visual monitoring detection mechanism, which is arranged on the frame, and the visual monitoring detection mechanism includes a camera. When the paper feeding assembly is located at the upper paper position, the lens of the camera is facing the lower groove and the upper groove.

[0037] Compared with the prior art, the utility model has the following beneficial effects: the document filling device of the utility model drives the suction cup to move upward through the opening and closing driving member to open the envelope opening, and the clamping driving member drives the pressure rod to be in the raised position; the paper feeding driving component drives the paper feeding component to be in the upper paper position, and the paper transport mechanism feeds the document into the gap, and then the paper feeding driving component drives the paper feeding component to be in the lower paper position, and the top sheet metal and the bottom sheet metal enter the envelope, and the clamping driving member drives the pressure rod to be in the pressing position, thereby pressing the documents at the lower slot and the upper slot, and the paper feeding driving component drives the paper feeding component back to the upper paper position again, and the top sheet metal and the bottom sheet metal exit the envelope, and the document remains in the envelope; the document is protected by the top sheet metal and the bottom sheet metal, so that no wrinkles or damage to the document will occur during the process of loading the document into the envelope. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the utility model.

[0039] Figure 1 This is a schematic diagram of the overall structure of a document filling device provided in a preferred embodiment of the utility model.

[0040] Figure 2 A partial structural schematic diagram of a document filling device provided in a preferred embodiment of the utility model.

[0041] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0042] Figure 4 A schematic structural diagram of a file tightening mechanism of a file filling device provided in a preferred embodiment of the utility model.

[0043] Figure 5 A schematic structural diagram of a paper feeding assembly and a non-return mechanism of a document filling device provided in a preferred embodiment of the utility model.

[0044] Figure 6 Another structural schematic diagram of the paper feeding assembly and the non-return mechanism of the document filling device provided in the preferred embodiment of the utility model.

[0045] Figure 7 A schematic structural diagram of a pull plate of a document loading device provided in a preferred embodiment of the utility model.

[0046] Figure 8 This is a schematic diagram of the exploded bottom sheet metal and top sheet metal of the document filling device provided in the preferred embodiment of the utility model.

[0047] Fig. 9A schematic structural diagram of a paper pushing module of a document filling device provided in a preferred embodiment of the utility model.

[0048] Fig.10 A schematic structural diagram of a channel conveying module of a document filling device provided in a preferred embodiment of the utility model.

[0049] in,

[0050] 11. Rack,

[0051] 12. File clamping mechanism, 121. Press rod, 122. Clamping drive member,

[0052] 13. Envelope opening and closing mechanism, 131. Suction cup, 132. Opening and closing driving member, 133. Opening and closing fixing frame, 134. Guide wheel, 135. Photoelectric sensor, 136. Code disk, 137. Connecting plate, 1371. Long strip hole,

[0053] 14. Paper feeding mechanism,

[0054] 141, paper feeding assembly, 1411, paper feeding fixing frame, 1412, bottom sheet metal, 14121, lower slot, 14122, lower slide slot, 1413, top sheet metal, 14131, upper slot, 14132, upper slide slot,

[0055] 142. Paper feed drive assembly,

[0056] 15. Paper transport mechanism,

[0057] 151, channel conveying module, 1511, conveying belt, 1512, guide plate, 15121, inclined section, 15122, limiting section,

[0058] 152, paper pushing module, 1521, pushing block, 1522, paper pushing clamp, 15221, first section, 15222, second section, 1523, angle control follower, 1524, paper pushing driving member,

[0059] 16. Spring positioning mechanism, 161. Rotating member, 1611. Roller, 162. Elastic member,

[0060] 17. Check mechanism, 171. Check frame, 172. Guide shaft, 173. Pull plate, 1731. Connecting port, 174. Press plate, 175. Limiting shaft, 176. Check compression spring, 177. Check cylinder, 1771. Limiting head.

[0061] In the figures, structurally similar elements are denoted by the same reference numerals. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0063] Directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used for reference to the directions of the drawings. The directional terms used are used to illustrate and understand the present invention, and are not used to limit the present invention.

[0064] The words "first", "second" and the like in the terminology of the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be construed as limiting the order of precedence.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the document express delivery industry, there are many types of documents with different sizes. When facing a large batch of documents, in line with the principle of economy, a special type of envelope may be designed for such documents to match the size of the document and the envelope, which means that the size of the document and the envelope are not much different. When such soft-bound documents need to be mailed to different recipients, the documents are prone to wrinkles due to their soft texture, causing damage to the documents.

[0067] The following is a preferred embodiment of a document filling device provided by the present invention that can solve the above technical problems.

[0068] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 8 The preferred embodiment of the utility model provides a document filling device for filling documents into envelopes, which includes a frame 11, and a document tightening mechanism 12, an envelope opening and closing mechanism 13, a paper feeding mechanism 14 and a paper transporting mechanism 15, which are all arranged on the frame 11 and arranged in sequence along the horizontal direction.

[0069] The envelope opening and closing mechanism 13 includes a suction cup 131 and an opening and closing driving member 132. The suction cup 131 is movably arranged in the vertical direction, and the opening and closing driving member 132 is connected to the suction cup 131, and is used to drive the suction cup 131 to move vertically to open the envelope opening. The paper feeding mechanism 14 includes a paper feeding assembly 141 and a paper feeding driving assembly 142. The paper feeding assembly 141 includes a paper feeding fixed frame 1411, a bottom sheet metal 1412 and a top sheet metal 1413. The paper feeding fixed frame 1411 is slidably arranged on the frame 11 in the horizontal direction, and the top sheet metal 1413 and the bottom sheet metal 1412 are both connected to the paper feeding fixed frame 1411, and the top sheet metal 1413 is located above the bottom sheet metal 1412, and a gap is provided between the two for accommodating documents. The bottom sheet metal 1412 is provided with a lower groove 14121 at one end close to the envelope opening and closing mechanism 13, and the top sheet metal 1413 is provided with an upper groove 14131 at one end close to the envelope opening and closing mechanism 13, and the lower groove 14121 and the upper groove 14131 overlap. The paper feeding assembly 141 is movably arranged in the horizontal direction, and the paper feeding assembly 141 includes an upper paper position and a lower paper position on its moving track, and the lower paper position is close to the file clamping mechanism 12 relative to the upper paper position. When the paper feeding assembly 141 is located at the lower paper position, the top sheet metal 1413 and the bottom sheet metal 1412 are located below the suction cup 131. The paper feeding drive assembly 142 is connected to the paper feeding assembly 141, and is used to drive the paper feeding assembly 141 to move in the horizontal direction to enter and exit the envelope.

[0070] The document clamping mechanism 12 includes a pressure rod 121 and a clamping drive 122. The pressure rod 121 is rotatably arranged, and includes a pressure position and a lifting position on its rotation track. When the paper feeding assembly 141 is located at the lower paper position, the pressure rod 121 rotates to the pressure position to clamp the documents at the lower slot 14121 and the upper slot 14131. The clamping drive 122 is connected to the pressure rod 121 and is used to drive the pressure rod 121 to rotate.

[0071] The paper transport mechanism 15 is used to transport the documents into the gap.

[0072] The document filling device of the utility model drives the suction cup 131 to move upward through the opening and closing driving member 132, so as to open the envelope opening, and the clamping driving member 122 drives the pressure rod 121 to be located in the raised position; the paper feeding driving component 142 drives the paper feeding component 141 to be located in the upper paper position, and the paper transporting mechanism 15 feeds the document into the gap, and then the paper feeding driving component 142 drives the paper feeding component 141 to be located in the lower paper position, and the top sheet metal 1413 and the bottom sheet metal 1412 enter the envelope, The clamping drive 122 drives the pressure rod 121 to be located at the pressing position, thereby pressing the documents at the lower groove 14121 and the upper groove 14131, and the paper feeding drive assembly 142 drives the paper feeding assembly 141 back to the upper paper position again, and the top sheet metal 1413 and the bottom sheet metal 1412 withdraw from the envelope, and the document remains in the envelope; the document is protected by the top sheet metal 1413 and the bottom sheet metal 1412, so that no wrinkles or damage will occur when the document is loaded into the envelope.

[0073] Please refer to Figure 2 The envelope opening and closing mechanism 13 further includes an opening and closing fixing frame 133, which is arranged on the frame 11. A guide wheel 134 is arranged on the opening and closing fixing frame 133. The guide wheel 134 is located on the side of the suction cup 131 away from the folder tightening mechanism 12, and is used to press the top sheet metal 1413 toward the bottom sheet metal 1412. With the above structure, when the paper feeding assembly 141 moves from the upper paper position to the lower paper position, the guide wheel 134 can press the top sheet metal 1413 toward the bottom sheet metal 1412, so that the two are more closely fitted, so as to adapt to envelopes of not too large size.

[0074] Please refer to Figure 2 and Figure 3The document loading device further includes a spring positioning mechanism 16, which includes a rotating member 161 and an elastic member 162. The rotating member 161 is rotatably connected to the opening and closing fixed frame 133, and a roller 1611 is provided at the bottom end of the rotating member 161. The elastic member 162 is connected between the opening and closing fixed frame 133 and the rotating member 161, and is used to drive the bottom end of the rotating member 161 to move in the direction of the top sheet metal 1413 and the bottom sheet metal 1412. When the paper feeding assembly 141 is located at the upper paper position, one end of the top sheet metal 1413 and / or the bottom sheet metal 1412 close to the document clamping mechanism 12 abuts against the bottom end of the rotating member 161. When the paper feeding assembly 141 moves from the upper paper position to the lower paper position, the paper feeding assembly 141 pushes the bottom end of the rotating member 161 to rotate in the direction close to the suction cup 131, and the top sheet metal 1413 abuts against the roller 1611. With this structure, when the paper feeding assembly 141 is located at the upper paper position, the elastic member 162 drives the bottom end of the rotating member 161 to abut against the top sheet metal 1413 and / or the bottom sheet metal 1412 close to the file tightening mechanism 12. When the paper transport mechanism 15 transports the document to the gap between the top sheet metal 1413 and the bottom sheet metal 1412, the bottom end of the rotating member 161 can limit the document to prevent the document from protruding from the top sheet metal 1413 and the bottom sheet metal 1412 and losing protection. When the paper feeding assembly 141 moves from the upper paper position to the lower paper position, the top sheet metal 1413 pushes the bottom end of the rotating member 161 to rotate toward the end close to the file tightening mechanism 12. By arranging a roller 1611 at the bottom end of the rotating member 161, the friction between the top sheet metal 1413 and the rotating member 161 can be reduced, so that the paper feeding assembly 141 moves smoothly.

[0075] Please refer to Figure 5 , Figure 6 and Figure 7The document loading device further includes a non-return mechanism 17, which includes a non-return frame 171, a guide shaft 172, a pull plate 173, a pressure plate 174, a limit shaft 175, a non-return compression spring 176 and a non-return cylinder 177. The non-return frame 171 is connected to the paper feeding fixed frame 1411. The guide shaft 172 is vertically slidably arranged on the non-return frame 171. The pull plate 173 is connected to the top end of the guide shaft 172, and the pull plate 173 is provided with a connection port 1731 opening toward the paper feeding mechanism 15. The pressure plate 174 is connected to the bottom end of the guide shaft 172. The limit shaft 175 is connected to the pressure plate 174. The limit shaft 175 is arranged to move vertically. The limit shaft 175 includes a non-return position and a disengagement position on its moving track. When the limit shaft 175 is located at the disengagement position, the limit shaft 175 is located above the top sheet metal 1413. When the limit shaft 175 is located at the non-return position, the limit shaft 175 penetrates the top sheet metal 1413 and the bottom sheet metal 1412. The non-return compression spring 176 is arranged between the non-return frame 171 and the pressure plate 174, and is used to drive the limit shaft 175 to move toward the non-return position. The non-return cylinder 177 is arranged on the frame 11 and is located above the non-return frame 171. The piston rod of the non-return cylinder 177 is provided with a limit head 1771. When the paper feeding assembly 141 is located at the upper paper position, the piston rod of the check cylinder 177 passes through the connection port 1731, and the limit head 1771 abuts against the lower part of the connection port 1731. The check cylinder 177 is used to drive the limit shaft 175 to move toward the disengagement position. When the paper feeding assembly 141 moves from the upper paper position to the lower paper position, the piston rod of the check cylinder 177 disengages from the connection port 1731.

[0076] With the above structure, when the paper feeding assembly 141 is located at the upper paper position, the piston rod of the check cylinder 177 is passed through the connecting port 1731, and the limit head 1771 abuts against the bottom of the connecting port 1731, so that the piston rod of the check cylinder 177 is connected to the pull plate 173, and the piston rod of the check cylinder 177 moves upward, driving the pull plate 173, the guide shaft 172, the pressure plate 174 and the limit shaft 175 to move upward, so that the limit shaft 175 is located in the disengaged position, which is convenient for the paper transport mechanism 15 to transport the document to the gap between the top sheet metal 1413 and the bottom sheet metal 1412; then the piston rod of the check cylinder 177 moves downward, and the elastic force of the check compression spring 176 causes the pressure plate 174, the guide shaft 172 and the limit shaft 175 to move downward, so that the limit shaft 175 is located in the check position, so as to limit the document and prevent the document from shifting during the movement from the upper paper position to the lower paper position.

[0077] Please refer to Figure 2, a through hole is provided on the opening and closing fixed frame 133, and the opening and closing envelope mechanism 13 further includes a photoelectric sensor 135, a code disc 136 and a reset spring. The photoelectric sensor 135 is provided on the opening and closing fixed frame 133. The code disc 136 is rotatably provided in the through hole and is provided adjacent to the suction cup 131. The code disc 136 includes an original position and a trigger position on its rotation track. When the code disc 136 is located at the original position, the code disc 136 is separated from the groove of the photoelectric sensor 135. When the code disc 136 is located at the trigger position, the code disc 136 is located in the groove of the photoelectric sensor 135. The reset spring is connected to the code disc 136 and is used to drive the code disc 136 to rotate from the trigger position to the original position. With this structure, when the envelope is opened, the envelope drives the code disk 136 to rotate from the original position to the trigger position, thereby triggering the photoelectric sensor 135, and it can be recognized that the envelope has been opened, so as to control the paper feeding assembly 141 to move from the upper paper position to the lower paper position; if the envelope is not opened, the reset spring drives the code disk 136 to be in the original position, and the photoelectric sensor 135 is not triggered.

[0078] Please continue to refer to Figure 2 , two suction cups 131 are provided, and the envelope opening and closing mechanism 13 further includes a connecting plate 137 arranged in the longitudinal direction, which connects the two suction cups 131 and the opening and closing driving member 132, and the connecting plate 137 is provided with two long holes 1371, the long holes 1371 extend in the longitudinal direction, and the two suction cups 131 are respectively arranged in the two long holes 1371. Through this structure, the position of the suction cup 131 in the long hole 1371 can be adjusted to adjust the distance between the two suction cups 131 to match envelopes of different widths.

[0079] Please refer to Figure 8 , Fig. 9 and Fig.10 An upper slide groove 14132 extending laterally is provided at one end of the top sheet metal 1413 away from the upper groove 14131, and a lower slide groove 14122 extending laterally is provided at one end of the bottom sheet metal 1412 away from the lower groove 14121, and the upper slide groove 14132 and the lower slide groove 14122 overlap.

[0080] The paper transport mechanism 15 includes a channel transport module 151 and a paper pushing module 152. The channel transport module 151 includes a conveyor belt 1511, which is used to transport the document toward the paper feeding mechanism 14 in the horizontal direction. The conveyor belt 1511 is provided with a plurality of nail heads arranged in the horizontal direction, and two adjacent nail heads are used to position the document. The paper pushing module 152 is located between the channel transport module 151 and the paper feeding mechanism 14, and is located below the paper feeding assembly 141, and is used to push the document on the conveyor belt 1511 into the gap, and includes a push block 1521, a paper pushing clamp 1522, an angle control follower 1523 and a paper pushing driving member 1524. The push block 1521 is slidably arranged at the bottom of the frame 11 in the horizontal direction. The paper pushing clamp 1522 is movably arranged in the upper slide groove 14132 and the lower slide groove 14122. The paper pushing clamp 1522 includes a first section 15221 and a second section 15222, which are arranged in the horizontal direction. The second section 15222 is closer to the paper feeding assembly 141 relative to the first section 15221 and is inclined upward. One end of the first section 15221 is rotatably connected to the push block 1521, and the other end is connected to one end of the second section 15222; the angle control follower 1523 is connected to the frame 11 and abuts against the paper pushing clamp 1522. The paper pushing driving member 1524 is connected to the push block 1521, and is used to drive the push block 1521 and the paper pushing clamp 1522 to move in the horizontal direction. When the second section 15222 abuts against the angle control follower 1523, the paper pusher claw 1522 rotates relative to the push block 1521 as the push block 1521 moves laterally to enter or move out of the upper slide groove 14132 and the lower slide groove 14122. When the first section 15221 abuts against the angle control follower 1523, the length direction of the first section 15221 is parallel to the sliding direction of the paper pusher claw 1522, and the other end of the second section 15222 slides along the upper slide groove 14132 and the lower slide groove 14122. The angle control follower 1523 may be a rotating shaft.

[0081] With the above structure, the conveyor belt 1511 conveys the documents horizontally toward the gap close to the paper feeding assembly 141. The front most of each document will enter the gap of the paper feeding assembly 141, and the remaining small part at the back will not be able to completely enter the gap of the paper feeding assembly 141 after separating from the conveyor belt 1511. The paper pushing driving member 1524 pushes the paper pushing clamp 1522 to move laterally toward the gap direction close to the paper feeding assembly 141. During the movement, the second section 15222 first abuts against the angle control follower 1523, and the paper pushing clamp 1522 rotates relative to the pushing block 1521, and the paper pushing clamp 1522 is raised. Then the first section 15221 abuts against the angle control follower 1523. At this time, the paper pushing clamp 1522 no longer rotates relative to the pushing block 1521, and the end of the second section 15222 away from the first section 15221 is at the same height as the document. As the paper pushing clamp 1522 moves, the rear part of the document is completely pushed into the gap of the paper feeding assembly 141, and the second section 15222 enters the upper slide groove 14132 and the lower slide groove 14122, and the document is sent to the designated position along the upper slide groove 14132 and the lower slide groove 14122. After the above operation is completed, the paper pushing driving member 1524 pushes the paper pushing clamping claw 1522 to move laterally in the direction away from the gap of the paper feeding assembly 141, and returns to the bottom of the document to allow the following document to pass smoothly. With the above structure, the document can be delivered to the specified position in the gap of the paper feeding assembly 141 without manual assistance, thereby improving the working efficiency and saving labor.

[0082] Please continue to refer to Fig. 9 , the angle control follower 1523 is arranged above the paper pushing clamp 1522, and a paper pushing compression spring is connected between the first section 15221 and the push block 1521, and the paper pushing compression spring is used to provide an elastic force for the paper pushing clamp 1522 to rotate upward, so that the paper pushing clamp 1522 and the angle control follower 1523 are kept in contact. In the above structure, by arranging the paper pushing compression spring between the first section 15221 and the push block 1521, the paper pushing clamp 1522 can be driven to rotate upward, and the paper pushing clamp 1522 is limited by the upper angle control follower 1523, so that the structure is compact and easy to set. In other embodiments, the angle control follower 1523 can also be arranged below the paper pushing clamp 1522.

[0083] Please refer to Fig.10The channel conveying module 151 is also provided with a guide plate 1512, which includes an inclined section 15121 and a limiting section 15122. The inclined section 15121 is inclined relative to the conveying belt 1511. The top of the inclined section 15121 is connected to the frame 11. The bottom of the inclined section 15121 extends toward the paper feeding assembly 141 and is connected to one end of the limiting section 15122. The other end of the limiting section 15122 extends toward the paper feeding assembly 141. The limiting section 15122 is arranged at the paper inlet of the gap to align the document with the gap. With the above structure, the limiting section 15122 can prevent the document from tilting up and guide the document to the gap of the paper feeding assembly 141. The inclined section 15121 is inclined toward the conveying direction of the conveying belt 1511. When the document tilts up and tops the limiting section 15122, the inclined section 15121 has a certain elasticity to prevent the document from getting stuck.

[0084] The document loading device further includes a visual monitoring detection mechanism, which is disposed on the frame 11. The visual monitoring detection mechanism includes a camera. When the paper feeding assembly 141 is located at the upper paper position, the camera lens faces the lower slot 14121 and the upper slot 14131. With the above structure, the visual monitoring detection mechanism can use the camera to photograph the documents at the lower slot 14121 and the upper slot 14131 to identify document information, store and record documents, and detect documents.

[0085] The working principle of the document filling device of the preferred embodiment of the utility model is as follows:

[0086] 1. The paper feeding assembly 141 is located at the upper paper position; the piston rod of the check cylinder 177 is connected to the pull plate 173, and the check cylinder 177 drives the limit shaft 175 to be located at the disengaged position; the opening and closing driving member 132 drives the suction cup 131 to move upward, thereby opening the envelope opening, and the clamping driving member 122 drives the pressure rod 121 to be located at the raised position;

[0087] 2. The conveyor belt 1511 conveys the documents horizontally toward the gap close to the paper feeding assembly 141. The front most of each document will enter the gap of the paper feeding assembly 141, and the remaining small part at the back cannot completely enter the gap of the paper feeding assembly 141 after leaving the conveyor belt 1511.

[0088] 3. The paper pushing clamp 1522 is initially located below the document, and the paper pushing driving member 1524 pushes the paper pushing clamp 1522 to move laterally toward the gap direction close to the paper feeding assembly 141. During the movement, the second section 15222 first abuts against the angle control follower 1523, and the paper pushing clamp 1522 rotates relative to the pushing block 1521, and the paper pushing clamp 1522 is raised. Then the first section 15221 abuts against the angle control follower 1523. At this time, the paper pushing clamp 1522 no longer rotates relative to the pushing block 1521, and the end of the second section 15222 away from the first section 15221 is at the same height as the document. As the paper pushing clamp 1522 moves, the rear part of the document is pushed into the gap of the paper feeding assembly 141, and the second section 15222 enters the upper slide groove 14132 and the lower slide groove 14122, and the document is sent to the designated position along the upper slide groove 14132 and the lower slide groove 14122. After completing the above operations, the paper pushing driving member 1524 pushes the paper pushing clamping claw 1522 to move laterally in the gap direction away from the paper feeding assembly 141 and return to the bottom of the document to allow the following document to pass smoothly.

[0089] 4. When the paper-pushing claw 1522 pushes the document into the gap of the paper-feeding assembly 141 , the bottom end of the elastic member 162 limits the document so that it does not protrude from the top sheet metal 1413 and the bottom sheet metal 1412 .

[0090] 5. The paper feeding assembly 141 moves from the upper paper position to the lower paper position, and at the same time, the piston rod of the check cylinder 177 is disengaged from the pull plate 173, and the elastic force of the check compression spring 176 drives the limit shaft 175 to the check position to limit the file and prevent the file from shifting during the movement from the upper paper position to the lower paper position. During the movement of the paper feeding assembly 141 from the upper paper position to the lower paper position, the paper feeding assembly 141 pushes the bottom end of the rotating member 161 to rotate toward the suction cup 131, and the top sheet metal 1413 abuts against the roller 1611. When the top sheet metal 1413 moves to the bottom of the guide wheel 134, the guide wheel 134 can press the top sheet metal 1413 against the bottom sheet metal 1412, so that the two fit more closely to accommodate envelopes that are not too large. When the paper feeding assembly 141 is located at the lower paper position, the top sheet metal 1413 and the bottom sheet metal 1412 enter the envelope, the clamping driving member 122 drives the pressing rod 121 to be located at the pressing position, thereby pressing the documents at the lower slot 14121 and the upper slot 14131, and the paper feeding driving assembly 142 drives the paper feeding assembly 141 back to the upper paper position again, so that the documents are separated from the paper feeding assembly 141 and remain in the envelope. Repeat the above operation.

[0091] This is the working process of the document filling device of this preferred embodiment.

[0092] The document filling device of the utility model drives the suction cup to move upward through the opening and closing driving member, thereby opening the envelope opening, and the clamping driving member drives the pressure rod to be located in the lifting position; the paper feeding driving component drives the paper feeding component to be located in the upper paper position, and the paper transport mechanism feeds the document into the gap, and then the paper feeding driving component drives the paper feeding component to be located in the lower paper position, and the top sheet metal and the bottom sheet metal enter into the envelope, and the clamping driving member drives the pressure rod to be located in the pressing position, thereby pressing the document at the lower slot and the upper slot, and the paper feeding driving component drives the paper feeding component back to the upper paper position again, and the top sheet metal and the bottom sheet metal exit the envelope, and the document remains in the envelope; the document is protected by the top sheet metal and the bottom sheet metal, so that no wrinkles or damage to the document will occur during the process of loading the document into the envelope.

[0093] To sum up, although the present invention has been disclosed as above in the form of preferred embodiments, the protection scope of the present invention is not limited thereto, and any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the concept of the technical solution of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A document filling device for filling documents into envelopes, characterized in that: It includes a frame, and a paper tightening mechanism, an envelope opening and closing mechanism, a paper feeding mechanism and a paper transporting mechanism, which are all arranged on the frame and arranged in sequence in the transverse direction; The envelope opening and closing mechanism comprises a suction cup and an opening and closing driving member; the suction cup is movably arranged in the vertical direction; the opening and closing driving member is connected to the suction cup and is used to drive the suction cup to move vertically to open the envelope opening; The paper feeding mechanism comprises a paper feeding assembly and a paper feeding driving assembly; the paper feeding assembly comprises a paper feeding fixing frame, a bottom sheet metal and a top sheet metal; the paper feeding fixing frame is slidably arranged on the frame in a transverse direction, the top sheet metal and the bottom sheet metal are both connected to the paper feeding fixing frame, the top sheet metal is located above the bottom sheet metal, a gap for accommodating documents is arranged between the two, the bottom sheet metal is provided with a lower groove at one end close to the opening and closing envelope mechanism, the top sheet metal is provided with an upper groove at one end close to the opening and closing envelope mechanism, and the lower groove and the upper groove have an overlap; the paper feeding assembly is movably arranged in a transverse direction, and the paper feeding assembly comprises an upper paper position and a lower paper position on its moving track, the lower paper position is close to the document tightening mechanism relative to the upper paper position, and when the paper feeding assembly is located at the lower paper position, the top sheet metal and the bottom sheet metal are located below the suction cup; the paper feeding driving assembly is connected to the paper feeding assembly, and is used to drive the paper feeding assembly to move in a transverse direction to enter and exit the envelope; The document clamping mechanism comprises a pressure rod and a clamping driving member; the pressure rod is rotatably arranged, and the pressure rod comprises a pressure position and a lifting position on its rotation track, and when the paper feeding assembly is located at the lower paper position, the pressure rod rotates to the pressure position to clamp the documents at the lower slot and the upper slot; The clamping driving member is connected to the pressing rod and is used to drive the pressing rod to rotate; The paper transport mechanism is used to transport the document into the gap.

2. The document loading device according to claim 1, characterized in that: The envelope opening and closing mechanism also includes an opening and closing fixing frame, which is arranged on the frame. The opening and closing fixing frame is provided with a guide wheel, which is located on the side of the suction cup away from the file tightening mechanism and is used to press the top sheet metal toward the bottom sheet metal.

3. The document loading device according to claim 2, characterized in that: The document loading device also includes a spring positioning mechanism, which includes: a rotating member, which is rotatably connected to the opening and closing fixed frame, and a roller is disposed at the bottom end of the rotating member; and An elastic member connected between the opening and closing fixing frame and the rotating member, and used for driving the bottom end of the rotating member to move toward the top sheet metal and the bottom sheet metal; When the paper feeding assembly is located at the upper paper position, one end of the top sheet metal and / or the bottom sheet metal close to the file clamping mechanism abuts against the bottom end of the rotating member; When the paper feeding assembly moves from the upper paper position to the lower paper position, the paper feeding assembly pushes the bottom end of the rotating member to rotate toward the suction cup, and the top sheet metal abuts against the roller.

4. The document loading device according to claim 3, characterized in that: The document loading device further includes a non-return mechanism, which includes: A non-return frame connected to the paper feeding fixed frame; A guide shaft, which is vertically slidably disposed on the anti-return frame; A pull plate connected to the top end of the guide shaft, the pull plate being provided with a connection port opening toward the paper transport mechanism; A pressure plate connected to the bottom end of the guide shaft; A limit shaft connected to the pressure plate, the limit shaft is movably arranged along the vertical direction, and the limit shaft includes a non-return position and a disengagement position on its movement track. When the limit shaft is located at the disengagement position, the limit shaft is located above the top sheet metal, and when the limit shaft is located at the non-return position, the limit shaft penetrates the top sheet metal and the bottom sheet metal; a non-return compression spring, which is arranged between the non-return frame and the pressure plate, and is used to drive the limit shaft to move toward the non-return position; and A check cylinder is arranged on the frame and located above the check frame. A limit head is arranged on the piston rod of the check cylinder. When the paper feeding assembly is located at the upper paper position, the piston rod of the check cylinder passes through the connecting port, and the limit head abuts against the lower part of the connecting port. The check cylinder is used to drive the limit shaft to move toward the disengagement position. When the paper feeding assembly moves from the upper paper position to the lower paper position, the piston rod of the check cylinder is separated from the connecting port.

5. The document loading device according to claim 2, characterized in that: The opening and closing fixing frame is provided with a through hole, and the opening and closing envelope mechanism further comprises: A photoelectric sensor is disposed on the opening and closing fixing frame; and a code disk, which is rotatably disposed in the through hole and is disposed adjacent to the suction cup, wherein the code disk includes an original position and a trigger position on its rotation trajectory, wherein when the code disk is located at the original position, the code disk is out of the slot of the photoelectric sensor, and when the code disk is located at the trigger position, the code disk is located in the slot of the photoelectric sensor; and, A return spring is connected to the code disc and is used to drive the code disc to rotate from the trigger position to the original position.

6. The document loading device according to claim 1, characterized in that: There are two suction cups, and the envelope opening and closing mechanism also includes a connecting plate arranged along the longitudinal direction, which connects the two suction cups and the opening and closing driving member, and two long holes are arranged on the connecting plate, and the long holes extend along the longitudinal direction, and the two suction cups are respectively arranged in the two long holes.

7. The document loading device according to claim 1, characterized in that: An upper slide groove extending in the transverse direction is arranged at one end of the top sheet metal away from the upper groove, and a lower slide groove extending in the transverse direction is arranged at one end of the bottom sheet metal away from the lower groove, and the upper slide groove and the lower slide groove overlap; the paper transport mechanism comprises: a channel conveying module, comprising a conveying belt, for conveying the document in a transverse direction toward the paper feeding mechanism; A paper pushing module, which is located between the channel conveying module and the paper feeding mechanism and below the paper feeding assembly, and is used to push the documents on the conveying belt into the gap, and comprises a pushing block, a paper pushing clamp, an angle control follower and a paper pushing driving member; the pushing block is arranged to slide horizontally at the bottom of the frame; the paper pushing clamp is movably inserted into the upper slide groove and the lower slide groove, and the paper pushing clamp comprises a first section and a second section, the first section and the second section are arranged horizontally, the second section is close to the paper feeding assembly relative to the first section, and is inclined upward, and one end of the first section is rotatably connected to the pushing block , and the other end is connected to one end of the second section; the angle control follower is connected to the frame and abuts against the paper pushing clamp; the paper pushing driving member is connected to the pushing block, for driving the pushing block and the paper pushing clamp to move laterally; when the second section abuts against the angle control follower, the paper pushing clamp rotates relative to the pushing block as the pushing block moves laterally to enter or move out of the upper slide groove and the lower slide groove; when the first section abuts against the angle control follower, the length direction of the first section is parallel to the sliding direction of the paper pushing clamp, and the other end of the second section slides along the upper slide groove and the lower slide groove.

8. The document loading device according to claim 7, characterized in that: The angle control follower is arranged above the paper pushing clamp, and a paper pushing compression spring is connected between the first section and the pushing block, and the paper pushing compression spring is used to provide an elastic force for the paper pushing clamp to rotate upward so that the paper pushing clamp and the angle control follower are kept in contact.

9. The document loading device according to claim 7, characterized in that: The channel conveying module is also provided with a guide plate, which includes an inclined section and a limiting section. The inclined section is inclined relative to the conveyor belt, the top of the inclined section is connected to the frame, the bottom end of the inclined section extends toward the paper feeding assembly and is connected to one end of the limiting section, the other end of the limiting section extends toward the paper feeding assembly, and the limiting section is arranged at the paper inlet of the gap to align the document with the gap.

10. The document loading device according to any one of claims 1 to 9, characterized in that: The document filling device also includes a visual monitoring detection mechanism, which is arranged on the frame. The visual monitoring detection mechanism includes a camera. When the paper feeding assembly is located at the upper paper position, the lens of the camera faces the lower groove and the upper groove.

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