Automatic stamping device for bidding document

Abstract

The invention relates to the technical field of document stamping, in particular to an automatic stamping device for bidding documents, which comprises a mounting box, a mounting plate, a shell, a mounting frame, a first electric guide rail, an air cylinder and the like, the mounting plate is connected in the mounting box, the shell is connected to the top of the mounting box, the mounting frame is connected to the top of the shell, and the first electric guide rail is mounted in the mounting frame; an air cylinder is installed on a sliding block of the first electric guide rail. The telescopic rod of the air cylinder extends to drive the seal to move downwards, so that the seal face of the seal makes contact with the bidding documents, the bidding documents are automatically sealed, the working efficiency can be improved, single bidding documents in the bound bidding documents can be arched upwards through rotation of the electric rolling wheel, and the work efficiency is improved. According to the bidding document stamping device, the single bidding document which arches upwards and is bound in a volume can be poked through the poking rod, the single bidding document in the bidding document which is bound in the volume is subjected to page turning, and the bidding document which is bound in the volume is stamped, so that the flexibility is higher, and the bidding document stamping device can adapt to various types of bidding documents.

Description

Technical Field

[0001] The invention relates to the technical field of document stamping, and in particular to an automatic stamping device for tender documents. Background Art

[0002] In the fields of business bidding, legal document processing, etc., stamping the bid is an important step. Stamping is an important symbol that indicates that the document has been officially authorized, which gives the document legal effect and makes it legally binding.

[0003] Traditional stamping methods are mostly manual operations, which are slow and inefficient and cannot adapt to large-scale stamping operations. Although there are some automatic stamping devices for single-page papers on the market, most of them cannot be adjusted according to the type of bid documents due to their own structural limitations. For bound bid documents, the degree of automation is not high, making it difficult to achieve efficient and accurate stamping operations, and they lack flexibility and adaptability. Summary of the invention

[0004] In order to overcome the shortcomings that the automatic stamping equipment cannot be adjusted according to the type of tender documents due to its own structural limitations, the degree of automation is not high for bound tender documents, it is difficult to achieve efficient and accurate stamping operations, and it lacks flexibility and adaptability, the present invention provides an automatic stamping device for tender documents.

[0005] An automatic stamping device for tender documents, comprising an installation box, an installation plate, a shell, a mounting frame, a first electric guide rail, a cylinder, a lifting frame, a second electric guide rail, a moving plate, a third electric guide rail, a moving block, a sliding rod, an inserting rod, a moving frame, a seal, a gear, a spring, a cylinder, ink, a rack, a feeding mechanism and a page turning mechanism, wherein the installation box is connected with the installation plate, the top of the installation box is connected with the shell, the top of the shell is connected with the mounting frame, the first electric guide rail is installed in the mounting frame, the slider of the first electric guide rail is installed with a cylinder, the telescopic rod of the cylinder is connected with the lifting frame, the second electric guide rail is installed at the top of the lifting frame, the slider of the second electric guide rail is connected with the moving plate, the bottom of the moving plate is installed with There is a third electric guide rail, a moving block is connected to the slider of the third electric guide rail, a sliding rod is slidably connected to the moving block, the upper and lower parts of the sliding rod are provided with sockets, the moving block is slidably connected to the plug rod, the plug rod can be inserted into the socket to fix the sliding rod, the sliding rod is connected to a moving frame, the moving frame is rotatably connected to a seal, the seal is connected to a gear, the moving frame is connected to a spring, the spring is connected to a cylinder, the moving frame is located in the cylinder, and the moving frame and the cylinder are slidably connected, the cylinder is connected with ink pad by a thread, the stamping surface of the seal is in contact with the bottom of the ink pad, the cylinder is connected with a rack, the feeding mechanism is used to transport the bid document to the bottom of the seal, and the page turning mechanism is used to turn the pages of the bound bid document.

[0006] Optionally, the feeding mechanism includes a conveyor, a first rotating shaft, a servo motor, a feeding wheel, a first rotating plate, a second rotating shaft, a first hexagonal sleeve, a first conveying wheel, a second hexagonal sleeve, a second conveying wheel, a conveyor belt, an adjustment component and a limit component. The conveyor is installed in the installation box, the conveyor passes through the installation plate, the bid is placed on the installation plate, and the bid is contacted with the conveyor. The conveyor transports the bid to the right and transports the bid to just below the seal. The first rotating shaft is rotatably connected in the installation box, and a servo motor is installed on the installation box. The output shaft of the servo motor is connected to the first rotating shaft, and the second hexagonal sleeve is connected to the second conveying wheel. A feeding wheel is connected to a rotating shaft, a first rotating plate is rotatably connected to the front and rear of the first rotating shaft, and a second rotating shaft is rotatably connected to the two first rotating plates, a first hexagonal sleeve is connected to the front and rear of the first rotating shaft, and the first conveying wheel is slidably connected to the first hexagonal sleeve, a second hexagonal sleeve is connected to the front and rear of the second rotating shaft, and the second conveying wheel is slidably connected to the second hexagonal sleeve, a conveyor belt is wound around the second conveying wheel and the first conveying wheel, an adjusting component is used to adjust the distance between the two conveying belts, and a limiting component is used to limit the bid on the mounting plate.

[0007] Optionally, the adjustment assembly includes a first connecting plate, a first bidirectional screw rod and a second connecting plate. The tops of the two first rotating plates are commonly connected to the first connecting plate, the first bidirectional screw rod is rotatably connected to the first connecting plate, the second conveying wheel and the first conveying wheel are commonly rotatably connected to the second connecting plate, the two second connecting plates are both threadedly connected to the first bidirectional screw rod, and the first bidirectional screw rod slides through the installation box.

[0008] Optionally, the limiting assembly includes a screw rod and an arc-shaped plate. Two screw rods are rotatably connected in the installation box, and the two screw rods are threadedly connected to a arc-shaped plate for limiting the bid document on the installation plate.

[0009] Optionally, the page turning mechanism includes a second rotating plate, an electric roller, a baffle, a stepper motor, a lever and a door panel, the second rotating plate is rotatably connected to the first rotating shaft, the second rotating plate slides through the mounting plate, the electric roller is installed at the lower part of the second rotating plate, the electric roller is located in the mounting box, the baffle is hinged on the top of the mounting plate, a torsion spring is connected between the baffle and the mounting plate, stepper motors are installed on the front and rear sides of the top of the mounting plate, the output shaft of the stepper motor is connected to the lever, the door panel is hinged on the front side of the mounting box, and the lower part of the door panel and the rear side of the mounting box are provided with through openings for the lever to pass through.

[0010] Optionally, a second bidirectional screw and a limit plate are also included. The second bidirectional screw is rotatably connected in the installation box, and the limit plates are slidably connected to the front and rear sides of the top of the installation plate. The two limit plates are both connected to the second bidirectional screw by threads.

[0011] Optionally, it also includes a receiving plate and a clamping ball. An opening is opened on the right side of the mounting plate, and circular grooves are opened on the front and rear sides of the opening. The receiving plate is used to receive the stamped bid documents. The front and rear sides of the receiving plate are connected with clamping balls, which are located in the circular grooves. The receiving plate is clamped in the opening through the clamping balls.

[0012] Optionally, a grip rod is further included, the first rotating plate at the rear side is connected to the grip rod, and the grip rod slides through the installation box.

[0013] The beneficial effects of the present invention are as follows: the present invention can drive the seal to move downward by extending the telescopic rod of the cylinder, so that the stamping surface of the seal contacts the bid document, and the bid document is automatically stamped, which can improve work efficiency; the electric roller can be rotated to make a single bid document in the bound bid document arch upward; the lever can be used to move the single bid document in the bound bid document that arches upward, turn the page of the single bid document in the bound bid document, and stamp the bound bid document; the present invention has greater flexibility and can adapt to various types of bid documents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0015] Figure 2 A three-dimensional structural schematic diagram of the mounting frame, the first electric guide rail, the cylinder and the lifting frame of the present invention is shown.

[0016] Figure 3 A three-dimensional structural schematic diagram of the second electric guide rail, the moving plate, the third electric guide rail and the moving block of the present invention is shown.

[0017] Figure 4 The three-dimensional structural schematic diagram of the slide bar, the plug hole, the plug rod, the moving frame, the spring and the cylinder of the present invention is shown.

[0018] Figure 5 A cross-sectional view of a cylinder according to the present invention is shown.

[0019] Figure 6 A first stereoscopic structural schematic diagram of the feeding mechanism of the present invention is shown.

[0020] Figure 7 A second three-dimensional structural schematic diagram of the feeding mechanism of the present invention is shown.

[0021] Figure 8 A three-dimensional structural schematic diagram of the screw rod and the arc-shaped plate of the present invention is shown.

[0022] Fig. 9 A three-dimensional structural schematic diagram of the page turning mechanism of the present invention is shown.

[0023] Fig.10 A schematic diagram of the three-dimensional structure of the second rotating plate and the electric roller of the present invention is shown.

[0024] Fig.11 The figure shows the state of the electric roller after rotating upward.

[0025] Fig.12 A first three-dimensional structural schematic diagram of the second bidirectional lead screw and the limit plate of the present invention is shown.

[0026] Fig.13 A second three-dimensional structural schematic diagram of the second bidirectional lead screw and the limit plate of the present invention is shown.

[0027] Fig.14 The three-dimensional structural schematic diagram of the material receiving plate of the present invention is shown.

[0028] Fig.15 A schematic diagram of the three-dimensional structure of the opening and the circular groove of the present invention is shown.

[0029] Fig.16 The three-dimensional structural schematic diagram of the material receiving plate and the clamping ball of the present invention is shown.

[0030] Markings in the accompanying drawings: 1: mounting box, 2: mounting plate, 3: housing, 4: mounting frame, 5: first electric guide rail, 6: cylinder, 7: lifting frame, 8: second electric guide rail, 9: moving plate, 10: third electric guide rail, 11: moving block, 12: sliding rod, 13: jack, 14: plug rod, 15: moving frame, 16: seal, 17: gear, 18: spring, 19: cylinder, 20: ink pad, 21: rack, 22: conveyor, 23: first rotating shaft, 24: servo motor, 25: feeding wheel, 26: first rotating plate, 27 : The second rotating shaft, 28: The first hexagonal sleeve, 29: The first conveying wheel, 30: The second hexagonal sleeve, 31: The second conveying wheel, 32: The conveyor belt, 33: The first connecting plate, 34: The first bidirectional screw rod, 35: The second connecting plate, 36: The screw rod, 37: The arc plate, 38: The second rotating plate, 39: The electric roller, 391: The baffle plate, 40: The stepping motor, 41: The lever, 411: The door panel, 42: The second bidirectional screw rod, 43: The limit plate, 44: The opening, 45: The circular groove, 46: The receiving plate, 47: The card ball, 48: The grip rod. DETAILED DESCRIPTION

[0031] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0032] Reference Figure 1-Figure 11, an automatic stamping device for tender documents, including an installation box 1, an installation plate 2, a shell 3, a mounting frame 4, a first electric guide rail 5, a cylinder 6, a lifting frame 7, a second electric guide rail 8, a moving plate 9, a third electric guide rail 10, a moving block 11, a slide bar 12, an insertion rod 14, a moving frame 15, a seal 16, a gear 17, a spring 18, a cylinder 19, an ink pad 20, a rack 21, a feeding mechanism and a page turning mechanism, the middle part of the installation box 1 is connected with the installation plate 2 by bolts, the top of the installation box 1 is connected with the shell 3 by bolts, the top of the shell 3 is connected with the mounting frame 4 by bolts, the front and rear sides of the mounting frame 4 are both installed with the first electric guide rail 5 by bolts, the sliders of the two first electric guide rails 5 are installed with a cylinder 6 by bolts, the lower end of the telescopic rod of the cylinder 6 is connected with the lifting frame 7, the left and right sides of the top of the lifting frame 7 are both installed with the second electric guide rail 8 by bolts, the bottom of the slider of the second electric guide rail 8 is connected with the moving plate 9, and the front and rear sides of the bottom of the moving plate 9 are both installed with the third electric guide rail by bolts The movable guide rail 10, the slider of the third electric guide rail 10 is connected with a moving block 11, the moving block 11 is slidably connected with a slide bar 12, the upper and lower parts of the slide bar 12 are provided with a socket 13, the moving block 11 is slidably connected with an insertion rod 14, the lower end of the slide bar 12 is connected with a moving frame 15, the lower part of the moving frame 15 is rotatably connected with a seal 16, the left and right sides of the seal 16 are connected with a gear 17, the upper part of the moving frame 15 is connected with a spring 18, the lower end of the spring 18 is connected with a cylinder 19, and the moving frame 15 is located in the cylinder 19, and the movable frame 15 and the cylinder 19 are slidably connected. The upper part of the cylinder 19 is connected with the ink pad 20 through a thread. The stamping surface of the seal 16 contacts the bottom of the ink pad 20. The left and right sides of the lower part of the cylinder 19 are connected with racks 21. The number of teeth of the gear 17 is twice the number of teeth of the rack 21. The gear 17 will mesh with the rack 21 during the downward movement. The feeding mechanism is used to transport the bid document to the bottom of the seal 16, and the page turning mechanism is used to turn the pages of the bound bid document.

[0033] Reference Figure 6-Figure 8The feeding mechanism includes a conveyor 22, a first rotating shaft 23, a servo motor 24, a feeding wheel 25, a first rotating plate 26, a second rotating shaft 27, a first hexagonal sleeve 28, a first conveying wheel 29, a second hexagonal sleeve 30, a second conveying wheel 31, a conveyor belt 32, an adjustment component and a limit assembly. The conveyor 22 is installed on the left side of the installation box 1. The conveyor 22 passes through the installation plate 2. The first rotating shaft 23 is rotatably connected in the installation box 1. The servo motor 24 is installed on the front side of the installation box 1 by bolts. The output shaft of the servo motor 24 and the front end of the first rotating shaft 23 are connected by a coupling. The feeding wheel 25 is connected to the middle part of the first rotating shaft 23. The front and rear parts of the first rotating shaft 23 are both rotatably connected to the first rotating plate 26. The right parts of the two first rotating plates 26 are rotatably connected to the second rotating plate 26 together. The rotating shaft 27 and the front and rear parts of the first rotating shaft 23 are both connected with the first hexagonal sleeve 28, and the first hexagonal sleeve 28 is slidably connected with the first conveying wheel 29, the first conveying wheel 29 can slide on the first hexagonal sleeve 28, and the first hexagonal sleeve 28 can drive the first conveying wheel 29 to rotate, and the front and rear parts of the second rotating shaft 27 are both connected with the second hexagonal sleeve 30, and the second hexagonal sleeve 30 is slidably connected with the second conveying wheel 31, the second conveying wheel 31 can slide on the second hexagonal sleeve 30, and the second hexagonal sleeve 30 can drive the second conveying wheel 31 to rotate, and a conveyor belt 32 is wound around the second conveying wheel 31 and the first conveying wheel 29, the adjusting component is used to adjust the distance between the two conveying belts 32, and the limiting component is used to limit the bid on the mounting plate 2.

[0034] Reference Figure 6 and Figure 7 The adjusting assembly includes a first connecting plate 33, a first bidirectional screw rod 34, and a second connecting plate 35. The tops of the two first rotating plates 26 are commonly connected to the first connecting plate 33, and the right side of the first connecting plate 33 is rotatably connected to the first bidirectional screw rod 34. The second conveying wheel 31 and the first conveying wheel 29 are commonly rotatably connected to the second connecting plate 35. The two second connecting plates 35 are both connected to the first bidirectional screw rod 34 by threads, and the threads on the two second connecting plates 35 are in opposite directions, so the first bidirectional screw rod 34 can drive the two second connecting plates 35 to move in opposite directions. The first bidirectional screw rod 34 slides through the rear side of the installation box 1, which can facilitate the staff to rotate the first bidirectional screw rod 34, and the first bidirectional screw rod 34 has enough rotation space.

[0035] Reference Figure 8 The limiting assembly includes a screw rod 36 and an arc plate 37. The screw rods 36 are rotatably connected to the front and rear sides of the upper part of the installation box 1, and the arc plate 37 is commonly connected to the two screw rods 36 through threads.

[0036] Reference Figure 9-11The page turning mechanism includes a second rotating plate 38, an electric roller 39, a baffle 391, a stepping motor 40, a lever 41 and a door plate 411. The rear portion of the first rotating shaft 23 is rotatably connected to the second rotating plate 38. The second rotating plate 38 slides through the mounting plate 2. A handle is provided on the rear side of the second rotating plate 38. The handle on the second rotating plate 38 slides through the rear side of the mounting box 1. The second rotating plate 38 can be rotated by holding the handle. The lower portion of the second rotating plate 38 is equipped with an electric roller 39. The electric roller 391 is provided with a stepping motor 40. 9 is located in the installation box 1, and two baffles 391 are hinged on the rear side of the top of the installation plate 2. The baffles 391 can block the bid documents to prevent them from falling into the installation box 1. A torsion spring is connected between the baffles 391 and the installation plate 2. A stepper motor 40 is installed on both the front and rear sides of the top of the installation plate 2 by bolts, and a lever 41 is connected to the output shaft of the stepper motor 40. A door panel 411 is hinged on the front side of the installation box 1, and a through hole for the lever 41 to pass through is opened on the lower part of the door panel 411 and the rear side of the installation box 1.

[0037] The staff rotates the screw 36 to drive the arc plate 37 to move up and down, and adjusts the distance between the arc plate 37 and the mounting plate 2. The distance between the arc plate 37 and the mounting plate 2 can be adjusted according to the rear end of a single tender document to ensure that only one tender document is conveyed each time and that it can adapt to tender documents of different thicknesses. Then a stack of tender documents is placed on the mounting plate 2, and the tender document at the bottom is in contact with the conveyor 22. The second electric guide rail 8 can drive the seal 16 to move left and right, and the third electric guide rail 10 can drive the seal 16 to move forward and backward to adjust the position of the seal 16. The position of the seal 16 can be adjusted according to the position where the seal is required to be stamped, so as to adapt to different tender documents. The insertion rod 14 can be pulled out of the socket 13, the slide bar 12 can be loosened, and then the slide bar 12 can be moved up and down to adjust the seal 16, insert the rod 14 into the upper socket 13, then the height of the seal 16 is lower, insert the rod 14 into the lower socket 13, then the height of the seal 16 is higher, when the height of the seal 16 is lower, the seal 16 can be stamped, otherwise, the seal 16 cannot be stamped, and it can be adjusted according to the number of stamps required to adapt to different bids. After adjusting the seal 16, start the conveyor 22, the conveyor 22 conveys the bid to the right, the bid will contact the feeding wheel 25 and the conveyor belt 32, start the servo motor 24, the output shaft of the servo motor 24 drives the first rotating shaft 23 and the first hexagonal sleeve 28 to rotate, the first hexagonal sleeve 28 drives the first conveying wheel 29 to rotate, the first conveying wheel 29 drives the conveyor belt 32 to rotate, and the first The rotation of the rotating shaft 23 can also drive the feeding wheel 25 to rotate. The feeding wheel 25 and the conveyor belt 32 can convey the bid to the right and convey the bid to the bottom of the seal 16. The first bidirectional screw rod 34 can be rotated to drive the two second connecting plates 35 to move in opposite directions, thereby driving the two conveyor belts 32 to move in opposite directions. The distance between the two conveyor belts 32 can be adjusted according to the width of the bid to accommodate bids of different widths. When the bid moves to the bottom of the seal 16, the telescopic rod of the control cylinder 6 is extended to drive the lifting frame 7 to move downward. The lifting frame 7 drives the moving frame 15, the seal 16 and the cylinder 19 to move downward. The cylinder 19 moves downward and contacts with the bid, and then the cylinder 19 stops moving downward. The moving frame 15 and the seal 16 continue to move downward, the spring 18 is compressed, and the stamping surface of the seal 16 will be out of contact with the ink pad 20. The downward movement of the seal 16 can also drive the gear 17 to move downward. The gear 17 will mesh with the rack 21 during the downward movement, and the gear 17 rolls on the rack 21. The gear 17 can drive the seal 16 to rotate, turn the seal 16 over, and make the stamping surface of the seal 16 face down. When the gear 17 and the rack 21 are out of mesh, the gear 17 stops rotating. The number of teeth of the gear 17 is twice that of the rack 21, so the gear 17 just rotates 180 degrees, and the stamping surface of the seal 16 just faces downward. Then the stamping surface of the seal 16 moves downward and contacts the bid document, and the bid document is automatically stamped, which can improve work efficiency.After stamping is completed, the telescopic rod of the control cylinder 6 is shortened, driving the moving frame 15 and the seal 16 to move upward, and the spring 18 gradually returns to its original state. The upward movement of the seal 16 can drive the gear 17 to move upward. The gear 17 will mesh with the rack 21 during the upward movement. The gear 17 rolls on the rack 21, and the gear 17 can drive the seal 16 to rotate, turn the seal 16 over, and make the stamping surface of the seal 16 face up. When the gear 17 and the rack 21 are disengaged, the gear 17 stops rotating. The number of teeth of the gear 17 is twice that of the rack 21, so the gear 17 just rotates 180 degrees, and the stamping surface of the seal 16 just faces up. After the spring 18 returns to its original state, the stamping surface of the seal 16 contacts the ink pad 20 again to ensure the clarity of the next stamping. When the bound bid documents need to be stamped, the staff controls the first electric guide rail 5 to drive the lifting frame 7 to move rightward, removes the lifting frame 7 to make room for the first rotating plate 26 and the conveyor belt 32 to rotate upward, and then rotates the first rotating plate 26 upward to turn the first rotating plate 26 and the conveyor belt 32 away to make room for the bound bid documents, and then rotates the second rotating plate 38 upward to drive the electric roller 39 to rotate upward, and rotates the electric roller 39 to the top of the mounting plate 2, and the electric roller 3 9 will contact with the baffle 391 and push the baffle 391 to move upward, the torsion spring will be deformed, and after the electric roller 39 and the baffle 391 are out of contact, the baffle 391 will rotate downward and reset under the action of the torsion spring, and then the staff will open the door panel 411, and then put the bound bids on the mounting plate 2, and turn over the bound bids, and then rotate the second rotating plate 38 in the opposite direction to make the electric roller 39 contact with the bound bids, and then close the door panel 411, and then the first electric guide rail 5 drives the lifting frame 7 to move to the left, and moves the seal 16 to the top of the bound bids, and then controls the telescopic rod of the cylinder 6 to extend, with The seal 16 is moved downward to stamp the bound bids. After stamping, the telescopic rod of the control cylinder 6 is shortened to drive the seal 16 to move upward to reset, and then the electric roller 39 is started. The rotation of the electric roller 39 can make a single bid in the bound bids arch upward. Then the output shaft of the stepper motor 40 is controlled to rotate 360 ​​degrees, driving the lever 41 to rotate 360 ​​degrees. The lever 41 can move the single bid in the bound bid that arches upward and turn the page of the single bid in the bound bid. In this way, the entire bound bid can be stamped, which is more flexible and can adapt to various types of bids.

[0038] Reference Fig.12 and Fig.13, also includes a second bidirectional screw rod 42 and a limit plate 43. The second bidirectional screw rod 42 is rotatably connected to the left side of the installation box 1, and the front and rear sides of the left side of the top of the installation plate 2 are slidably connected to the limit plates 43. The two limit plates 43 are both connected to the second bidirectional screw rod 42 by threads. The threads on the two limit plates 43 are in opposite directions, so the second bidirectional screw rod 42 can drive the two limit plates 43 to move in opposite directions.

[0039] After the bid is stamped, the feeding wheel 25 and the conveyor belt 32 continue to transport the bid to the right, and transport the stamped bid to the receiving plate 46. The receiving plate 46 can receive the stamped bid for easy collection. The receiving plate 46 is pulled to the right to disengage the card ball 47 from the circular groove 45, and the receiving plate 46 can be taken out of the opening 44, and then the stamped bid on the receiving plate 46 can be taken out.

[0040] Reference Figure 14-16 , and also includes a receiving plate 46 and a clamping ball 47. An opening 44 is opened on the right side of the mounting plate 2, and circular grooves 45 are opened symmetrically on the front and rear sides of the opening 44. The receiving plate 46 is used to receive the stamped bid documents, and the front and rear sides of the receiving plate 46 are symmetrically connected with clamping balls 47. The clamping balls 47 are located in the circular groove 45, and the receiving plate 46 is clamped in the opening 44 through the clamping balls 47.

[0041] The staff puts a stack of bids on the mounting plate 2. The limit plate 43 can limit the bids to ensure that the bids can remain neat. Rotating the second bidirectional screw 42 can drive the two limit plates 43 to move in opposite directions and adjust the distance between the two limit plates 43. The distance between the two limit plates 43 can be adjusted according to the width of the bids to accommodate bids of different widths.

[0042] Reference Figure 7 , also includes a grip rod 48, the rear side of the first rotating plate 26 is connected to the grip rod 48, the grip rod 48 slides through the installation box 1, the first rotating plate 26 can be rotated by holding the grip rod 48, and the operation is more convenient.

[0043] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. An automatic stamping device for tender documents, comprising an installation box (1), an installation plate (2) and a shell (3), wherein the installation box (1) is connected to the installation plate (2), and the top of the installation box (1) is connected to the shell (3), wherein: The invention also comprises a mounting frame (4), a first electric guide rail (5), a cylinder (6), a lifting frame (7), a second electric guide rail (8), a moving plate (9), a third electric guide rail (10), a moving block (11), a slide bar (12), an insertion rod (14), a moving frame (15), a seal (16), a gear (17), a spring (18), a cylinder (19), an ink pad (20), a rack (21), a feeding mechanism and a page turning mechanism. The top of the housing (3) is connected to the mounting frame (4), the mounting frame (4) is installed with the first electric guide rail (5), the slide bar of the first electric guide rail (5) is installed with the cylinder (6), the telescopic rod of the cylinder (6) is connected with the lifting frame (7), the top of the lifting frame (7) is installed with the second electric guide rail (8), the slide bar of the second electric guide rail (8) is connected with the moving plate (9), the bottom of the moving plate (9) is installed with the third electric guide rail (10), the slide bar of the third electric guide rail (10) is connected with the moving block (11), and the moving plate (9) is connected with the moving plate (11). The moving block (11) is slidably connected to a slide bar (12), and the slide bar (12) is provided with a socket (13) at the upper and lower parts. The moving block (11) is slidably connected to an insertion rod (14), and the insertion rod (14) can be inserted into the insertion hole (13) to fix the slide bar (12). The slide bar (12) is connected to a moving frame (15), and the moving frame (15) is rotatably connected to a seal (16), and the seal (16) is connected to a gear (17). The moving frame (15) is connected to a spring (1 8), a cylinder (19) is connected to the spring (18), the movable frame (15) is located in the cylinder (19), and the movable frame (15) and the cylinder (19) are slidably connected, an ink pad (20) is connected to the cylinder (19) through a thread, the stamping surface of the seal (16) is in contact with the bottom of the ink pad (20), a rack (21) is connected to the cylinder (19), a feeding mechanism is used to transport the bid document to the bottom of the seal (16), and a page turning mechanism is used to turn the pages of the bound bid document.

2. An automatic stamping device for tender documents according to claim 1, characterized in that: The feeding mechanism comprises a conveyor (22), a first rotating shaft (23), a servo motor (24), a feeding wheel (25), a first rotating plate (26), a second rotating shaft (27), a first hexagonal sleeve (28), a first conveying wheel (29), a second hexagonal sleeve (30), a second conveying wheel (31), a conveyor belt (32), an adjustment component and a limiter component. The conveyor (22) is installed in the installation box (1). The conveyor (22) passes through the installation plate (2). The bid document is placed on the installation plate (2) and the bid document is brought into contact with the conveyor (22). The conveyor (22) conveys the bid document to the right and conveys the bid document to the bottom of the seal (16). The first rotating shaft (23) is rotatably connected in the installation box (1). The servo motor (24) is installed on the installation box (1). The output shaft of the servo motor (24) and the first rotating shaft are connected. The first rotating shaft (23) is connected, a feeding wheel (25) is connected to the first rotating shaft (23), the front and rear parts of the first rotating shaft (23) are both rotatably connected to the first rotating plate (26), the two first rotating plates (26) are jointly rotatably connected to the second rotating shaft (27), the front and rear parts of the first rotating shaft (23) are both connected to the first hexagonal sleeve (28), the first hexagonal sleeve (28) is slidably connected to the first conveying wheel (29), the front and rear parts of the second rotating shaft (27) are both connected to the second hexagonal sleeve (30), the second hexagonal sleeve (30) is slidably connected to the second conveying wheel (31), the second conveying wheel (31) and the first conveying wheel (29) are wound with a conveying belt (32), the adjustment component is used to adjust the distance between the two conveying belts (32), and the limit component is used to limit the position of the bid on the mounting plate (2).

3. An automatic stamping device for tender documents according to claim 2, characterized in that: The adjustment assembly comprises a first connecting plate (33), a first bidirectional screw rod (34) and a second connecting plate (35); the tops of the two first rotating plates (26) are commonly connected to the first connecting plate (33); the first bidirectional screw rod (34) is rotatably connected to the first connecting plate (33); the second conveying wheel (31) and the first conveying wheel (29) are commonly rotatably connected to the second connecting plate (35); the two second connecting plates (35) are both connected to the first bidirectional screw rod (34) by threads; and the first bidirectional screw rod (34) slides through the mounting box (1).

4. An automatic stamping device for tender documents according to claim 3, characterized in that: The limiting assembly comprises a screw rod (36) and an arc plate (37). Two screw rods (36) are rotatably connected in the installation box (1). The two screw rods (36) are threadedly connected to the arc plate (37) for limiting the position of the bid document on the installation plate (2).

5. An automatic stamping device for tender documents according to claim 4, characterized in that: The page turning mechanism comprises a second rotating plate (38), an electric roller (39), a baffle (391), a stepping motor (40), a lever (41) and a door plate (411). The second rotating plate (38) is rotatably connected to the first rotating shaft (23). The second rotating plate (38) slides through the mounting plate (2). The lower part of the second rotating plate (38) is mounted with an electric roller (39). The electric roller (39) is located in the mounting box (1). The top of the mounting plate (2) is hinged with a baffle (391). A torsion spring is connected between the baffle (391) and the mounting plate (2). The front and rear sides of the top of the mounting plate (2) are both mounted with a stepping motor (40). The output shaft of the stepping motor (40) is connected with a lever (41). The front side of the mounting box (1) is hinged with the door plate (411). The lower part of the door plate (411) and the rear side of the mounting box (1) are both provided with through openings for the lever (41) to pass through.

6. An automatic stamping device for tender documents according to claim 5, characterized in that: It also includes a second bidirectional screw rod (42) and a limit plate (43). The second bidirectional screw rod (42) is rotatably connected in the installation box (1). The limit plates (43) are slidably connected to the front and rear sides of the top of the installation plate (2). The two limit plates (43) are connected to the second bidirectional screw rod (42) by threads.

7. An automatic stamping device for tender documents according to claim 6, characterized in that: The invention also comprises a receiving plate (46) and a clamping ball (47). The right side of the mounting plate (2) is provided with an opening (44). The front and rear sides of the opening (44) are provided with circular grooves (45). The receiving plate (46) is used to receive the stamped tender document. The front and rear sides of the receiving plate (46) are connected with clamping balls (47). The clamping balls (47) are located in the circular grooves (45). The receiving plate (46) is clamped in the opening (44) through the clamping balls (47).

8. An automatic stamping device for tender documents according to claim 7, characterized in that: It also includes a gripping rod (48), the gripping rod (48) being connected to the first rotating plate (26) at the rear side, and the gripping rod (48) slidingly passing through the mounting box (1).

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