Stamp locking mechanism and stamping device

Abstract

The invention provides a seal locking mechanism and a sealing device, the seal locking mechanism is assembled in a seal cylinder of a sealing device and used for being connected with a seal, a seal mounting clamp is arranged in the seal cylinder, the seal locking mechanism comprises a mounting frame mounted in the seal cylinder, and a first elastic piece and a second elastic piece are arranged on the mounting frame in a sliding mode; the locking assembly comprises a quasi-circular locking block, the quasi-circular locking block is perpendicular to the seal moving direction, a driving assembly is arranged on the mounting frame, and the driving assembly drives and rotates the quasi-circular locking block, so that the first elastic piece, the second elastic piece and the seal mounting clamp cannot move in the seal moving direction. Or the first elastic piece and the second elastic piece move in the stamping movement direction. Through small-amplitude rotation of the quasi-circular locking block, rapid locking or unlocking of the seal is achieved, and improvement of the safety of seal management is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of seal equipment, and in particular relates to a seal locking mechanism and a seal stamping device. Background Art

[0002] With the progress of society, the contractual signing method is becoming more and more perfect, and the corresponding seal security management and use have become the last guarantee for the safe operation of enterprises. The intelligent seal equipment on the market usually uses a single clamping lock for the seal, which can meet the single up and down reciprocating stamping movement. After the stamping movement is completed and returns to the initial position, the control part detects that the seal has returned to the initial position and sends a lock signal to lock the seal. Since the prior art uses a clamping lock structure, after the stamping movement is completed, the clamping lock structure needs to be realigned with the seal mounting part. Therefore, it takes a long time to reset the lock, resulting in the seal surface being exposed to the outside for a long time, which is not conducive to the safe management of the seal. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a seal locking mechanism and a seal stamping device, which can realize rapid locking or unlocking of the seal through a small rotation of a circular locking block, thereby improving the security of seal management.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a seal locking mechanism which is assembled in a seal tube of a seal stamping device and is used to connect with a seal, wherein a seal-binding fixture is arranged in the seal tube, and the seal locking mechanism comprises a mounting frame installed in the seal tube, wherein a first limiting column parallel to a seal stamping movement direction is arranged on the mounting frame, a sliding column vertically arranged on the upper surface of the mounting frame, a fixing plate is arranged on the top of the mounting frame, a locking assembly, and a first elastic member and a second elastic member cooperating with the locking assembly are arranged on the sliding column, the first elastic member is connected to the seal-binding fixture, the second elastic member is fixedly connected to the seal tube, a limiting groove is arranged on the first elastic member, and a second limiting column parallel to the seal stamping movement direction is arranged on the second elastic member; The locking assembly comprises a quasi-circular locking block and a locking block mounting plate, wherein the quasi-circular locking block is arranged perpendicularly to the stamping movement direction, the quasi-circular locking block comprises a first semi-arc locking block and a second semi-arc locking block, and the locking block mounting plate is provided with a first locking block limiting groove and a second locking block limiting groove, wherein the first locking block limiting groove is arranged correspondingly to the limiting groove and the first limiting column, and the second locking block limiting groove is arranged correspondingly to the second limiting column; A driving assembly is provided on the mounting frame, and the driving assembly drives the quasi-circular locking block so that the first semi-arc locking block clamps the first limiting column, and the second semi-arc locking block clamps the second limiting column, so that the first elastic member, the second elastic member and the seal binding fixture cannot move along the stamping movement direction; the driving assembly drives the quasi-circular locking block so that the first semi-arc locking block disengages from the first locking block limiting groove and the limiting groove, and the second arc-shaped locking block clamps the second limiting column, so that the first elastic member and the second elastic member move along the stamping movement direction.

[0005] Wherein, the driving component includes a stepper motor, the stepper motor is installed on the first elastic member, and the output end is connected to the center of the quasi-circular locking block. The stepper motor drives the quasi-circular locking block to rotate along the arc direction.

[0006] Wherein, a spring installation groove is arranged on the locking block installation plate, a first spring element is arranged in the spring installation groove, a second spring element is arranged on the first elastic member, and both the first spring element and the second spring element are connected to the fixing plate.

[0007] Wherein, the arc area of ​​the first semi-arc-shaped locking block is smaller than the arc area of ​​the second semi-arc-shaped locking block.

[0008] Wherein, a third limiting column is further arranged on the mounting frame, and the third limiting column is arranged on the first limiting column, and the limiting length of the third limiting column is greater than the limiting length of the first limiting column.

[0009] Among them, a first locking groove and a second locking groove are also arranged between the first semi-arc locking block and the second semi-arc locking block, and the depth of the first locking groove is less than the depth of the second locking groove; the depth of the first locking groove is greater than the length of the second limiting column, and the depth of the second locking groove is greater than the length of the third limiting column.

[0010] An embodiment of the present invention further provides a stamping device, comprising a stamp tube and a stamp locking mechanism, wherein a mounting frame of the stamp locking mechanism is provided with a stamp base on one side close to the opening of the stamp tube, a downwardly opening accommodating cavity is provided in the stamp base, and a stamp clamp is installed in the accommodating cavity.

[0011] Among them, operating structural parts consistent with the stamp movement direction are arranged on both sides of the first elastic part, and transverse limit grooves are arranged on the operating structural parts. Sliding grooves and flip guide grooves are arranged on both sides of the seal base. A connecting shaft is arranged on the seal binding clamp, and the connecting shaft can be inserted into the flip guide groove and the transverse limit groove in sequence when close; the operating structural part is driven to slide along the sliding groove, and the seal binding clamp is driven to move in the seal base through the connecting shaft and the first elastic part.

[0012] The beneficial effects of the above technical solution of the present invention are as follows: The present invention includes a seal tube and a seal locking mechanism. A seal base is provided on a mounting frame of the seal locking mechanism on one side close to the opening of the seal tube. A seal is arranged in the seal base, and the seal surface of the seal faces the opening at one end of the seal tube. Compared with the prior art, the embodiment of the present application locks the seal mechanically after the number of stamping times is completed, thereby avoiding the risk of unauthorized stamping and effectively improving the security of seal management. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the stamping and binding in the present invention; Figure 2 It is a schematic diagram of the internal structure of the stamping and binding in the present invention; Figure 3 The structure of the mounting frame of the present invention is shown in FIG. Figure 1 ; Figure 4 is a schematic structural diagram of the second elastic member in the present invention; Figure 5 The structure of the first elastic member in the present invention is schematically shown in FIG. Figure 1 ; Figure 6 The structure of the first elastic member in the present invention is schematically shown in FIG. Figure 2 ; Figure 7 The structure of the locking assembly in the present invention is schematically shown in FIG. Figure 1 ; Figure 8 It is a schematic structural diagram of a circular locking block in the locking assembly of the present invention; Fig. 9 It is a structural schematic diagram of a locking block mounting plate in a locking assembly of the present invention; Fig.10 The structure of the locking assembly in the present invention is shown in FIG. Figure 2 ; Fig.11 The structure of the seal base in the present invention is shown in FIG. Figure 1 ; Fig.12 The structure of the seal base in the present invention is shown in FIG. Figure 2 ; Fig.13 It is a structural schematic diagram of the seal binding fixture in the present invention.

[0014] Description of reference numerals: 1. Chapter tube; 2. Mounting frame; 201. First limiting column; 202. Fixed plate; 2021. Mounting hole; 203. Sliding column; 204. Third limiting column; 205. First limiting plate; 206. Second limiting plate; 3. Locking assembly; 301. quasi-circular locking block; 3011. first semi-arc locking block; 3012. second semi-arc locking block; 3013. first locking groove; 3014. second locking groove; 302. locking block mounting plate; 3021. first locking block limiting groove; 3022. second locking block limiting groove; 3023. spring mounting groove; 3024. limiting arc groove; 303. first spring element; 305. guide column; 306. first travel switch; 4. first elastic member; 401. first mounting plate; 402. driving plate; 4021. transverse limit groove; 4022. first sliding groove; 403. mounting groove; 404. second travel switch; 405. third travel switch; 406. limit groove; 5. Second elastic member; 501. Second limiting column; 502. Fixed block; 503. Second mounting plate; 504. Fixed rod; 505. Fourth travel switch; 506. Second spring element; 6. Drive assembly (stepper motor); 7. Seal base; 701. Accommodating cavity; 702. Ink cartridge; 703. First slide rail; 704. First flip guide groove; 7041. First straight groove section; 7042. First semicircular arc groove section; 7043. Second straight groove section; 705. Second flip axis; 8. Seal binding fixture; 801. First turning axis; 802. Second turning guide groove. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0016] Since the smart seal devices on the market usually use a single clamping lock to lock the seal, which only satisfies a single up and down reciprocating stamping movement, after the stamping movement is completed and returns to the initial position, the control part detects that the seal has returned to the initial position and sends a lock signal to lock the seal. Since the prior art uses a clamping lock structure, after the stamping movement is completed, the clamping lock structure needs to be re-aligned with the seal mounting part. Therefore, it takes a long time to reset the lock, resulting in the seal surface being exposed to the outside for a long time, which is not conducive to the safe management of the seal.

[0017] like Figure 1-3As shown, an embodiment of the present invention provides a seal locking mechanism which is assembled in a seal tube 1 of a seal stamping device and is used to connect with a seal. A seal clamp 8 is arranged in the seal tube 1. The seal locking mechanism comprises a mounting frame 2 installed in the seal tube 1. A first limiting column 201 parallel to the stamp stamping movement direction is arranged on the mounting frame 2. A sliding column 203 vertically arranged on the upper surface of the mounting frame 2. A fixing plate 202 is arranged on the top of the mounting frame 2. A locking assembly 3, and a first elastic member 4 and a second elastic member 5 cooperating with the locking assembly 3 are arranged on the sliding column 203. The first elastic member 4 is connected to the seal clamp 8. The second elastic member 5 is fixedly connected to the seal tube 1. A second limiting column 501 is arranged on the second elastic member 5. Further explanation: the second limiting column 501 is set as a cylinder. In this embodiment, a bearing is used as the second limiting column 501 to facilitate the rotation of the circular locking block 301. The mounting frame 2 is further provided with a third limiting column 204 . The third limiting column 204 is arranged parallel to and below the first limiting column 201 , and a limiting length of the third limiting column 204 is greater than a limiting length of the first limiting column 201 .

[0018] like Figure 7-10 As shown, the locking assembly 3 includes a quasi-circular locking block 301 and a locking block mounting plate 302, the quasi-circular locking block 301 is arranged perpendicular to the stamping movement direction, the quasi-circular locking block 301 includes a first semi-arc locking block 3011 and a second semi-arc locking block 3012, and the locking block mounting plate 302 is provided with a first locking block limiting groove 3021 and a second locking block limiting groove 3022, the first locking block limiting groove 3021 is arranged corresponding to the limiting groove and the first limiting column 201, and the second locking block limiting groove 3022 is arranged corresponding to the second limiting column 501.

[0019] A first locking groove 3013 and a second locking groove 3014 are also arranged between the first semi-arc locking block 3011 and the second semi-arc locking block 3012, and the depth of the first locking groove 3013 is less than the depth of the second locking groove 3014; the depth of the first locking groove 3013 is greater than the length of the second limiting column 501, and the depth of the second locking groove 3014 is greater than the length of the third limiting column 204. In this embodiment, the locking block mounting plate 302 is further provided with a limiting arc groove 3024, the end of which is provided with a first travel switch 306, and the bottom of the first semi-arc locking block 3011 is provided with a guide post 305, which moves with the first semi-arc locking block 3011 and moves along the limiting arc groove 3024; since the length of the limiting arc groove 3024 is slightly greater than the arc length of the first semi-arc locking block 3011, when the first semi-arc locking block 3011 rotates and completely leaves the first locking block limiting groove 3021 and the limiting groove 406, the guide post 305 moves to the end of the limiting arc groove 3024, thereby triggering the first travel switch 306, thereby judging that the contact lock can be performed at this time. Specifically, the setting of the limiting arc groove 3024 also limits the rotation direction of the quasi-circular locking block 301 to a certain extent, and facilitates the setting of the rotation direction of the driving component 6.

[0020] Specifically, the circular lock block 301 is composed of four semi-arc lock blocks, two semi-arc lock blocks with longer radius correspond to the first limiting column 201 and the second limiting column 501, so as to realize the locking and unlocking of the stamping device, and the first lock groove 3013 and the second lock groove 3014 correspond to the third limiting column 204, so as to realize the prevention of repeated stamping and stamp removal of the stamping device. In this embodiment, the first lock groove 3013 is arranged on the left side of the first semi-arc lock block 3011, and the second lock groove 3014 is arranged on the right side of the first semi-arc lock block 3011, so that the stamp removal function can be completed when the circular lock block 301 is rotated 80° counterclockwise.

[0021] The mounting frame 2 is provided with a driving assembly 6, which drives the quasi-circular locking block 301, so that the first semi-arc locking block 3011 clamps the first limiting column 201, and the second semi-arc locking block 3012 clamps the second limiting column 501, so that the first elastic member 4, the second elastic member 5 and the seal clamp 8 cannot move along the stamping movement direction; the driving assembly 6 drives the quasi-circular locking block 301, so that the first semi-arc locking block 3011 disengages from the first locking block limiting groove 3021 and the limiting groove 406, and the second arc-shaped locking block clamps the second limiting column 501, so that the first elastic member 4 and the second elastic member 5 move along the stamping movement direction.

[0022] In this embodiment, the driving component 6 is a stepper motor, which is installed on the first elastic member 4, and the output end is connected to the center of the quasi-circular locking block 301. The stepper motor drives the quasi-circular locking block 301 to rotate along the arc direction. The stepper motor drives the quasi-circular locking block 301 to rotate, thereby realizing the movement control of the first semi-circular arc locking block and the second semi-circular arc locking block.

[0023] It should be noted that the arc area of ​​the first semi-arc locking block 3011 is smaller than the arc area of ​​the second semi-arc locking block 3012. Through the setting of the first limiting column 201 and the second limiting column 501, and because the first elastic part 4 is connected to the seal binding clamp 8, the first elastic part 4 cannot be driven to move along the stamping direction, resulting in the seal binding clamp 8 being unable to stamp, thereby realizing the functions of locking and unlocking the seal.

[0024] Furthermore, with the seal locking state as the initial state, the quasi-circular locking block 301 does not rotate, so that the first semi-arc locking block 3011 and the second semi-arc locking block 3012 respectively clamp the first limiting column 201 and the second limiting column 501.

[0025] The stepper motor drives the quasi-circular locking block 301 to rotate counterclockwise by 40°, so that the first semi-arc locking block 3011 is separated from the position of the first limiting column 201. Meanwhile, the second semi-arc locking block 3012 has not yet separated from the position of the second limiting column 501, thereby achieving unlocking.

[0026] The stepper motor drives the quasi-circular locking block 301 to rotate 80° counterclockwise again, so that the first semi-arc locking block 3011 and the second semi-arc locking block 3012 are respectively separated from the positions of the first limiting column 201 and the second limiting column 501, and the first locking groove 3013 clamps the third limiting column 204, thereby realizing seal protection and preventing duplicate seals.

[0027] The stepper motor drives the quasi-circular locking block 301 to rotate counterclockwise by 80°, so that the first semi-arc locking block 3011 and the second semi-arc locking block 3012 are separated from the position of the first limiting column 201, and the third limiting column 204 corresponds to the second locking groove 3014 and does not restrict the third limiting column 204. At this time, the first elastic member 4 cooperates with the seal binding clamp 8 to slide to the bottom, and the seal can be removed in combination with the detachable buckle structure.

[0028] The lock block mounting plate 302 is provided with a spring mounting groove 3023, in which the first spring element 303 is provided, and the first elastic member 4 is provided with a second spring element 506, and both the first spring element 303 and the second spring element 506 are connected to the fixing plate 202. Through the first spring element 303 and the second spring element 506, the first elastic member 4 and the second elastic member 5 can be elastically reset to the top of the mounting frame 2, thereby protecting the seal.

[0029] In this embodiment, a fixing plate 202 is provided on the top of the mounting frame 2, and a mounting hole 2021 is opened on the fixing plate 202. The first spring element 303 and the second spring element 506 are both connected to the fixing plate 202. Specifically, when the number of stamping times is the last time, after the device detects that the seal starts to stamp, the stepper motor drives the circular locking block 301 to rotate again, and the first locking groove 3013 rotates to the position of the second limiting column 501, that is, the second elastic member 5 is disengaged from the locking assembly 3, so that the first elastic member 4 rebounds quickly due to the elastic force, and the first elastic member 4 cannot be linked with the seal clamp 8 to perform the stamping movement, thereby protecting the seal; at this time, the second spring member can still slide up and down along the sliding column 203, that is, the seal tube 1 can still slide up and down. When the second spring member rebounds quickly due to the elastic force, the device detects that the second spring member is reset and then drives the stepper motor to rotate the circular locking block 301, so that the seal is immediately locked.

[0030] An embodiment of the present invention further provides a stamping device, comprising a stamp tube 1 and a stamp locking mechanism, wherein a mounting frame 2 of the stamp locking mechanism is provided with a stamp base 7 on one side close to the opening of the stamp tube 1, wherein a downwardly opening accommodating cavity 701 is provided in the stamp base 7, wherein a stamp clamp 8 is installed in the accommodating cavity 701.

[0031] Operating structures consistent with the stamp movement direction are arranged on both sides of the first elastic member 4, and transverse limit grooves 4021 are arranged on the operating structures. Sliding grooves and flip guide grooves are arranged on both sides of the seal base 7. A connecting shaft is arranged on the seal binding fixture 8, and the connecting shaft can be inserted into the flip guide groove and the transverse limit groove 4021 in sequence; the operating structure is driven to slide along the sliding groove, and drives the seal binding fixture 8 to move in the seal base 7 through the connecting shaft and the first elastic member 4.

[0032] In combination with the above-mentioned seal tube and seal locking mechanism, a seal stamping device with a seal locking mechanism is specifically described below as an optional implementation.

[0033] In this embodiment, the stamping device includes a seal tube 1 and a seal locking mechanism. A mounting frame 2 is provided in the seal tube 1. A seal base 7 is provided on the side of the mounting frame 2 of the seal locking mechanism close to the opening of the seal tube 1. A downwardly opening accommodating cavity 701 is provided in the seal base 7, and a seal clamp 8 is installed in the accommodating cavity 701.

[0034] like Figure 3 As shown, a fixing plate 202 is extended forward from the top of the mounting frame 2, a mounting hole 2021 is opened on the fixing plate 202, a first limiting column 201 and a third limiting column 204 are arranged in the middle, and a first limiting plate 205 and a second limiting plate 206 are arranged on both sides of the mounting frame 2 respectively.

[0035] A sliding column 203 is vertically arranged on the upper surface of the mounting frame 2, and a locking assembly 3, a first elastic member 4 and a second elastic member 5 are slidably installed on the sliding column 203. The locking assembly 3 includes a circular locking block 301 and a locking block mounting plate 302. The first elastic member 4 includes a first mounting plate 401. A stepper motor is installed on the first mounting plate 401. The locking assembly 3 is arranged below the first mounting plate 401. Specifically, the locking block mounting plate 302, the circular locking block 301 and the first mounting plate 401 are arranged correspondingly from bottom to top in sequence with the output end of the stepper motor as the center.

[0036] like Figure 4-6 As shown, driving plates 402 are arranged on both sides of the first elastic member 4 , a transverse limiting groove 4021 is arranged at the bottom of the driving plate 402 , and a first sliding groove 4022 is opened on the body of the driving plate 402 .

[0037] The second elastic member 5 is composed of two fixing blocks 502 and a second mounting plate 503. The second mounting plate 503 is vertically arranged. The two fixing blocks 502 are respectively arranged at the two ends of the second mounting plate 503. The second mounting plate 503 is provided with a second limiting column 501. A mounting groove 403 is provided at the corresponding position of the first mounting plate 401 and the second limiting column 501. Specifically, the structure for locking or unlocking the second elastic member 5 is sequentially arranged from bottom to top as follows: the second limiting column 501, the circular locking block 301 and the locking block mounting plate 302, and the second limiting column 501 is fixed on the second elastic member 5 and arranged in the mounting groove 403. A fixing rod 504 is provided on the side of the fixing block 502 close to the chapter tube 1, and the fixing rod 504 passes through the first sliding groove 4022 and is fixedly connected to the chapter tube 1.

[0038] In this embodiment, the first elastic member 4 is further provided with a second travel switch 404 and a third travel switch 405, and the second elastic member 5 is provided with a fourth travel switch 505. The second travel switch 404 is provided corresponding to the first limit plate 205, the third travel switch 405 is provided corresponding to the second limit plate 206, and the fourth travel switch 505 is provided corresponding to the lock block mounting plate 302. With the seal locking state as the initial state, the first elastic member 4 and the second elastic member 5 are both at the initial position at the top of the mounting frame 2. At this time, whether the second travel switch 404 touches the first limit plate 205 is judged to be in the initial state; when the first elastic member 4 and the second elastic member 5 are stamping, whether the third travel switch 405 touches the second limit plate 206 is judged to complete the stamping action; when the fourth travel switch 505 touches the lock block mounting plate 302, and when the second travel switch 404 has touched the first limit plate 205, it is judged whether the second elastic member 5 returns to the initial state. The three travel switches are used to determine the current state of stamping and sealing, thereby controlling the stepper motor to lock and unlock the seal and prevent duplicate stamping.

[0039] The mounting frame 2, locking assembly 3, first elastic member 4 and second elastic member 5 can be used as a control structure for realizing locking, unlocking, preventing duplicate stamping and removing stamps of the stamp stamping device. The circular locking block 301 can be controlled by a stepping motor to rotate slightly to realize rapid locking or unlocking of the stamp.

[0040] A seal base 7 is disposed on one side of the mounting frame 2 close to the opening of the seal tube 1 . A downwardly opening accommodating cavity 701 is disposed in the seal base 7 . A seal fixture 8 is disposed in the accommodating cavity 701 .

[0041] like Fig.11 , 12 As shown, an ink cartridge 702 is detachably installed on the top of the accommodating cavity 701, and the ink surface of the ink cotton of the ink cartridge 702 is in the same direction as the opening of the accommodating cavity 701, that is, the ink surface faces the bottom of the seal binding fixture 8. When no seal is affixed, the seal surface of the seal binding fixture 8 is pressed tightly against the ink cotton of the ink cartridge 702.

[0042] First slide rails 703 corresponding to the driving plate 402 are arranged on both sides of the seal base 7, and a first flip guide groove 704 is also arranged in the first slide rail 703. The first flip guide groove 704 includes a first straight groove section 7041, a first semicircular arc groove section 7042 and a second straight groove section 7043 connected in sequence from top to bottom. The first straight groove section 7041 and the second straight groove section 7043 are both located on the same vertical straight line. At the same time, the first flip guide groove 704 is a hollow structure, and the entire groove bottom of the first flip guide groove 704 is connected to the accommodating cavity 701.

[0043] like Fig.13 As shown, a first flip axis 801 is provided at both ends of the binding clamp 8, the first flip axis 801 is slidably set in the first flip guide groove 704, and passes through the first flip guide groove 704 to be rotatably connected with a transverse limit groove 4021 set in the driving plate 402, and the length direction of the transverse limit groove 4021 intersects with the sliding direction of the driving plate 402; a second flip axis 705 is provided on the inner side wall of the accommodating cavity 701, and a second flip guide groove 802 is provided on the binding clamp 8, the second flip axis 705 is set at the center of the first circular arc groove segment, and the second flip axis 705 is inserted into the second flip guide groove 802.

[0044] When the seal tube 1 moves downward for stamping, the driving plate 402 is driven downward, thereby driving the first flip shaft 801 to slide downward along the first flip guide groove 704. When the first flip shaft 801 moves along the first straight groove section 7041, the seal clamp 8 can be separated from the ink box 702; when the first flip shaft 801 moves to the semi-circular arc groove section, since the straight-line distance between the first flip shaft 801 and the second flip shaft 705 remains unchanged, but the position of the second flip shaft 705 is relatively fixed, the first rotating shaft can realize a 180° flip of the seal clamp when passing through the semi-circular arc groove section, and the first flip shaft 801 continues to move downward along the second straight groove section 7043, so that the seal clamp 8 can be extended from the opening of the accommodating cavity 701 of the seal base 7 to complete the stamping action.

[0045] After the stamping action is completed, the first spring element 303 resets and drives the driving plate 402 to move upward, thereby driving the first flip shaft 801 to slide upward along the second straight groove section 7043, and passing through the semicircular arc groove section to flip the seal clamp 8 by 180° again, so that the seal surface of the seal clamp 8 corresponds to the ink box 702, and finally the seal clamp 8 is closely attached to the ink cotton of the ink box 702, so that the seal clamp 8 is reset. It is worth noting that the width of the first flip guide groove 704 is adapted to the shaft diameter of the first flip shaft 801, and the width of the second flip guide groove 802 is adapted to the shaft diameter of the second flip shaft 705, so as to prevent the seal clamp 8 from swinging when flipping.

[0046] In addition, the movement mode of the above-mentioned seal binding fixture 8 in the seal base 7 is not limited to this, and those skilled in the art can choose according to needs, and no special limitation is made here.

[0047] In summary, in this embodiment, the mounting frame 2, the locking assembly 3, the first elastic member 4 and the second elastic member 5 are combined to link the seal tube 1, the seal base 7 and the seal clamp 8 to realize the four different states of the seal-stamping device, namely, locking, unlocking, preventing duplicate seals and unloading seals (the downward movement direction is regarded as the seal-stamping movement): With the seal locking state as the initial state, the quasi-circular locking block 301 does not rotate, so that the first semi-arc locking block 3011 and the second semi-arc locking block 3012 correspond to the first limiting column 201 and the second limiting column 501 of the clamping column respectively, and the first elastic member 4 is clamped by the first semi-arc locking block 3011 to the first limiting column 201 in the downward direction, and the second elastic member 5 is clamped by the second semi-arc locking block 3012 to the second limiting column 501 in the downward direction, so that both the first elastic member 4 and the second elastic member 5 cannot move downward. At this time, the seal binding fixture 8 linked to the first elastic member 4 cannot move downward, and the seal tube 1 connected to the second elastic member 5 cannot move downward, and the entire seal binding is locked and cannot move downward.

[0048] The stepper motor drives the quasi-circular lock block 301 to rotate 40° counterclockwise, so that the first semi-arc lock block 3011 is separated from the corresponding position of the first limiting column 201. At the same time, the second semi-arc lock block 3012 has not yet separated from the corresponding position of the second limiting column 501. The first elastic member 4 does not limit the first semi-arc lock block 3011 due to the first limiting column 201, and the second elastic member 5 still clamps the second limiting column 501 in the downward direction due to the second semi-arc shape. The second elastic member 5 can move downward with the first elastic member 4, and then the seal clamp 8 linked to the first elastic member 4 can move downward. At this time, unlocking is achieved and the seal tube 1 is slid downward to achieve stamping. The specific process is: slide the seal tube 1 so that the second elastic member 5 drives the first elastic member 4 to move downward, and the driving plate 402 arranged on the first elastic member 4 moves downward along the first slide rail 703 synchronously, and drives the first flip axis 801 in the transverse limiting groove 4021 to slide downward along the first flip guide groove 704, and when the first flip axis 801 moves along the first straight groove section 7041, the seal binding fixture 8 is separated from the ink box 702, and when the first flip axis 801 moves to the semicircular arc groove section, the seal binding fixture 8 completes a 180° flip, and also continues to move downward along the second straight groove section 7043 through the first flip axis 801, so that the seal binding fixture 8 extends from the opening of the accommodating cavity 701 of the seal base 7, completing the stamping action.

[0049] The stepper motor drives the quasi-circular locking block 301 to rotate 80° counterclockwise again, so that the first semi-arc locking block 3011 and the second semi-arc locking block 3012 are simultaneously disengaged from the corresponding positions of the first limiting column 201 and the second limiting column 501, and the first locking groove 3013 clamps the third limiting column 204, so that the second elastic member 5 is disengaged from the first elastic member 4, but is limited to sliding on the first sliding groove 4022, that is, the seal tube 1 can move downward, but is not connected to the seal clamp 8, thereby realizing seal protection and preventing duplicate seals.

[0050] The stepper motor drives the quasi-circular locking block 301 to rotate 180° counterclockwise again, so that the first semi-arc locking block 3011 and the second semi-arc locking block 3012 are respectively separated from the positions of the first limiting column 201 and the second limiting column 501, and the first locking groove 3013 is also separated from the position of the third limiting column 204, and the seal is removed in combination with the detachable buckle structure.

[0051] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A seal locking mechanism, which is assembled in a seal tube of a stamping device and is used to connect with a seal, wherein a seal clamp is arranged in the seal tube, and is characterized in that: The seal locking mechanism comprises a mounting frame installed in the seal tube, the mounting frame is provided with a first limiting column parallel to the seal movement direction, a sliding column vertically arranged on the upper surface of the mounting frame, a fixing plate is arranged on the top of the mounting frame, a locking assembly and a first elastic member and a second elastic member matched with the locking assembly are arranged on the sliding column, the first elastic member is connected to the seal clamp, the second elastic member is fixedly connected to the seal tube, the first elastic member is provided with a limiting groove, and the second elastic member is provided with a second limiting column parallel to the seal movement direction; The locking assembly comprises a quasi-circular locking block and a locking block mounting plate, wherein the quasi-circular locking block is arranged perpendicularly to the stamping movement direction, the quasi-circular locking block comprises a first semi-arc locking block and a second semi-arc locking block, and the locking block mounting plate is provided with a first locking block limiting groove and a second locking block limiting groove, wherein the first locking block limiting groove is arranged correspondingly to the limiting groove and the first limiting column, and the second locking block limiting groove is arranged correspondingly to the second limiting column; A driving assembly is provided on the mounting frame, and the driving assembly drives the quasi-circular locking block so that the first semi-arc locking block clamps the first limiting column, and the second semi-arc locking block clamps the second limiting column, so that the first elastic member, the second elastic member and the seal binding fixture cannot move along the stamping movement direction; the driving assembly drives the quasi-circular locking block so that the first semi-arc locking block disengages from the first locking block limiting groove and the limiting groove, and the second arc-shaped locking block clamps the second limiting column, so that the first elastic member and the second elastic member move along the stamping movement direction.

2. The seal locking mechanism according to claim 1, characterized in that: The driving assembly includes a stepper motor, which is mounted on the first elastic member and has an output end connected to the center of the quasi-circular locking block. The stepper motor drives the quasi-circular locking block to rotate along an arc direction.

3. The seal locking mechanism according to claim 1, characterized in that: The locking block mounting plate is provided with a spring mounting groove, in which a first spring element is provided; the second elastic member is provided with a second spring element, and both the first spring element and the second spring element are connected to the fixing plate.

4. The seal locking mechanism according to claim 1, characterized in that: The arc area of ​​the first semi-arc-shaped locking block is smaller than the arc area of ​​the second semi-arc-shaped locking block.

5. The seal locking mechanism according to claim 1, characterized in that: The mounting frame is also provided with a third limiting column, the third limiting column is provided on the first limiting column, and the limiting length of the third limiting column is greater than the limiting length of the first limiting column.

6. The seal locking mechanism according to claim 1, characterized in that: A first locking groove and a second locking groove are further provided between the first semi-arc-shaped locking block and the second semi-arc-shaped locking block, and the depth of the first locking groove is less than the depth of the second locking groove.

7. The seal locking mechanism according to claim 6, characterized in that: The depth of the first locking groove is greater than the length of the second limiting column, and the depth of the second locking groove is greater than the length of the third limiting column.

8. A stamping device, characterized in that: It comprises a chapter tube and a chapter locking mechanism as claimed in any one of claims 1 to 7, wherein a mounting frame of the chapter locking mechanism is provided with a chapter base on one side close to the chapter tube opening, a downwardly opening accommodating cavity is provided in the chapter base, and a chapter clamp is installed in the accommodating cavity.

9. The stamping device according to claim 8, characterized in that: Operating structures consistent with the stamp movement direction are arranged on both sides of the first elastic member, and transverse limit grooves are arranged on the operating structure. Sliding grooves and flip guide grooves are arranged on both sides of the seal base. A connecting shaft is arranged on the seal binding clamp, and the connecting shaft can be inserted into the flip guide groove and the transverse limit groove in sequence when close; the operating structure is driven to slide along the sliding groove, and the seal binding clamp is driven to move in the seal base through the connecting shaft and the first elastic member.

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