Seal fixture and stamping device

Abstract

The utility model provides a seal fixture and a stamping device, the seal fixture comprises a mounting plate, a sliding rod, a first elastic element and a seal sleeve assembly, the sliding rod is slidably arranged on the mounting plate along the vertical direction, the seal sleeve assembly is detachably arranged at the bottom of the sliding rod, and a seal is convenient to mount and replace. When the seal sleeve device is used, a seal is contained in the containing groove, the seal sleeve assembly and the sliding rod are matched in an inserted mode through the clamping groove and the clamping block, and due to the fact that the two opposite side walls of the clamping groove are not parallel, the seal sleeve assembly can only be installed in the clamping groove from one direction. By means of the arrangement, it only needs to be guaranteed that the relative position of the seal and the seal sleeve assembly is correct when the seal is fixed, it can be easily guaranteed that seal face information is always positive after sealing after installation, and use is convenient. The seal sleeve assembly and the sliding rod are detachably connected in a clamping mode, rapid replacement of the seal sleeve is convenient to achieve, the seal replacement mode is simple and convenient, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping, and in particular relates to a stamp fixture and a stamping device. Background Art

[0002] A seal is a kind of stationery that prints a specific pattern or logo on a document to indicate identification or signature. Common seals include company seals, contract seals, financial seals, legal representative seals, etc. The use of seals is related to the normal business management activities of companies and individuals. In order to avoid the abuse or loss of seals, special people or special devices are generally required to manage them.

[0003] In order to improve work efficiency, there are seal control instruments and automatic stamping devices in the prior art, which are used for seal control and stamping to replace manual stamping. Such automatic equipment generally uses fixed tooling to clamp and fix the seal. When different seals need to be stamped, different seals need to be installed and replaced on the fixed tooling. The seal fixing tooling in the prior art is not convenient for seal alignment during installation, and it is impossible to ensure that the seal surface information is always correct after stamping, which is inconvenient to use. Utility Model Content

[0004] The utility model provides a seal clamp and a stamping device, aiming to solve the problem in the prior art that the seal fixing tool cannot ensure the alignment of the seal after installation, and is inconvenient to use.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, the utility model provides a seal clamp, comprising:

[0007] The mounting plate is provided with a guide sleeve, wherein the guide sleeve has a vertically penetrating guide hole;

[0008] A slide bar is slidably matched with the guide hole, a connecting block is provided at the bottom of the slide bar, a slot is provided at the bottom of the connecting block, one side of the slot passes through the connecting block in a horizontal direction, and two opposite side walls of the other side of the slot intersect in their own extension direction;

[0009] a first elastic element, two ends of which are respectively in contact with the slide bar and the mounting plate, and are provided with a first pre-tightening force to move the slide bar upward; and

[0010] A seal sleeve assembly, wherein the bottom of the seal sleeve assembly is provided with a receiving groove for accommodating a seal, the top of the seal sleeve assembly is provided with a clamping block adapted to the clamping groove, and the seal sleeve assembly is slidably inserted into the clamping groove in the opening direction of the clamping groove.

[0011] In a possible implementation, a guide groove is vertically provided on the side wall of the slide rod, the guide sleeve is threadedly engaged with a limit screw, and the screw end of the limit screw passes through the side wall of the guide sleeve and slidably engages with the guide groove.

[0012] In a possible implementation, the chapter sleeve component includes:

[0013] A connecting sleeve, the top of which is provided with the clamping block, and the bottom of which is provided with an adjustment hole;

[0014] a chapter cover body, the bottom of which is provided with the receiving groove, and the upper part of which is threadedly engaged with the adjusting hole; and

[0015] The locking ring is threadably fitted on the outer circumference of the chapter sleeve body and abuts against the connecting sleeve.

[0016] In a possible implementation, a positioning bead is embedded in the upper surface of the clamping block, and a positioning groove for clamping with the positioning bead is formed on the inner wall of the clamping slot.

[0017] In a possible implementation, the side wall of the chapter sleeve body is threadedly matched with a locking screw, and the screw end of the locking screw passes through the side wall of the chapter sleeve body and abuts against the seal.

[0018] In a possible implementation, the mounting plate is provided with a plurality of the guide sleeves along a circumferential direction, and the slide rod, the first elastic element and the chapter sleeve assembly are respectively provided with a plurality of the guide sleeves in a one-to-one correspondence.

[0019] Compared with the prior art, the seal clamp provided by the utility model has the following beneficial effects:

[0020] The seal fixture provided by the utility model comprises a mounting plate, a slide bar, a first elastic element and a seal sleeve assembly. The slide bar is slidably arranged on the mounting plate in the vertical direction, and the seal sleeve assembly is detachably arranged at the bottom of the slide bar, so as to facilitate the installation and replacement of the seal. The first elastic element is arranged between the slide bar and the mounting plate, and when the seal is pressed down to complete the stamping, it can automatically reset under the action of the first preload force. When the utility model is used, the seal is accommodated in the accommodating groove, and the seal sleeve assembly and the slide bar are plugged and matched through the card slot and the card block. Since the two side walls of the card slot are not parallel, the seal sleeve assembly can only be loaded into the card slot from one direction. With such a setting, it is only necessary to ensure that the relative position between the seal and the seal sleeve assembly is correct when fixing the seal. After installation, it can be easily ensured that the seal face information is always positive after stamping, which is convenient for use. The seal sleeve assembly and the slide bar are detachably connected by a card connection method, which is convenient for realizing the rapid replacement of the seal sleeve, and the seal replacement method is also relatively simple and convenient to use.

[0021] In a second aspect, the utility model provides a stamping device, comprising:

[0022] Mounting frame;

[0023] As in any of the above implementations of the seal fixture, the mounting plate is arranged on the mounting frame; and

[0024] A lifting drive assembly is arranged on the mounting frame. The lifting drive assembly is located above the slide bar and is used for driving the slide bar to move downward.

[0025] In a possible implementation, the lifting drive assembly includes:

[0026] A driving motor, arranged on the mounting frame;

[0027] A screw rod is vertically arranged on the mounting frame and drivingly connected to the output shaft of the driving motor;

[0028] A nut seat, matched with the thread of the screw rod;

[0029] A pressing plate, arranged below the nut holder;

[0030] A guide column is arranged in a vertical direction, the guide column includes a first guide portion and a second guide portion arranged from top to bottom, the diameter of the first guide portion is larger than the second guide portion, the first guide portion is slidably matched with the mounting frame, the second guide portion is slidably matched with the nut seat, and is connected to the pressing plate; and

[0031] A second elastic element, two ends of which are respectively in contact with the pressing plate and the nut seat, and is provided with a second pre-tightening force for moving the pressing plate downward, wherein the second pre-tightening force is greater than the first pre-tightening force.

[0032] In a possible implementation, the stamping device further includes an in-place detection component, and the in-place detection component includes:

[0033] The stamped optical coupler is arranged on the nut holder;

[0034] A stamping-in-place blocking piece is arranged on the pressure plate and corresponds to the stamping-in-place optical coupler up and down;

[0035] A reset optical coupler, disposed on the mounting frame; and

[0036] The reset baffle is arranged on the nut seat and corresponds to the reset optical coupler up and down.

[0037] In a possible implementation, the stamping device further includes a rotation drive assembly, and the rotation drive assembly is used to drive the stamp fixture to rotate around a vertical axis.

[0038] The stamping device provided by the utility model adopts the stamp fixture provided by any of the above-mentioned implementation methods, and drives the sliding rod to move downward through the lifting drive component, so as to complete the automatic stamping action, which is simple to operate and convenient to use. Within the allowable range of the stamping device, the stamping device provided by the utility model can adapt to different document thicknesses. Regardless of the thickness of the document to be stamped, the stamping force provided by the stamping device is consistent, and the stamping effect is good. In addition, when the lifting drive structure of the drive motor and the screw rod is adopted, the operator can directly adjust the stamping force. When the stamping force is too small, the drive motor can be controlled to continue to rotate forward for a certain period of time after the in-place optical coupler is triggered, so that the screw rod continues to be driven, which can increase the stamping force and help the operator adjust the stamping force according to the actual situation of the seal and the seal print, so that the seal print is clearer.

[0039] In addition to the above technical effects, the stamping device provided by the utility model also has the same technical effects as the stamp fixture, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the exploded structure of a seal holder provided in one embodiment of the utility model;

[0041] Figure 2 A schematic diagram of the structure of a seal holder provided in one embodiment of the utility model Figure 1 ;

[0042] Figure 3 for Figure 2 Sectional view in the AA direction;

[0043] Figure 4 This is a schematic diagram of the structure of the slide bar, the positioning bead and the connecting sleeve in one embodiment of the utility model;

[0044] Figure 5 A schematic diagram of the structure of a stamping device provided in one embodiment of the utility model Figure 1 ;

[0045] Figure 6 A schematic diagram of the structure of a stamping device provided in one embodiment of the utility model Figure 2 ;

[0046] Figure 7 A schematic diagram of the structure of a stamping device provided in another embodiment of the utility model;

[0047] Figure 8 This is a schematic diagram of the shape of the card slot on the connecting block in one embodiment of the utility model;

[0048] Fig. 9 This is a schematic diagram of the shape of the card slot on the connecting block in another embodiment of the utility model;

[0049] Fig.10 The figure is a schematic diagram of the shape of the slot on the connecting block in another embodiment of the present invention.

[0050] Description of reference numerals:

[0051] 1. Seal card;

[0052] 10. Mounting plate; 11. Guide sleeve; 111. Guide hole; 112. Limit screw;

[0053] 20. Slide bar; 21. Connecting block; 211. Slot; 22. Guide groove; 23. Slide bar cover;

[0054] 30. a first elastic element;

[0055] 40. Chapter sleeve assembly; 41. Connecting sleeve; 411. Block; 412. Positioning bead; 42. Chapter sleeve body; 43. Locking ring; 44. Locking screw;

[0056] 2. Stamping device;

[0057] 50. Mounting frame;

[0058] 60. lifting drive assembly; 61. driving motor; 62. screw rod; 63. nut seat; 64. pressing plate; 65. guide column; 66. second elastic element;

[0059] 70. In-place detection component; 71. Stamping in-place optical coupler; 72. Stamping in-place baffle; 73. Reset optical coupler; 74. Reset baffle;

[0060] 80. Rotary drive assembly;

[0061] 90. Seal. DETAILED DESCRIPTION

[0062] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0063] It should be noted that when an element is referred to as being "fixed to", "fixed" or "fixedly disposed" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" or "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "set to" or "disposed on" another element, it may be directly on the other element or there may be a central element. "Multiple" refers to two or more quantities. "At least one" refers to one or more quantities. "Several" refers to one or more quantities.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0065] Please also read Figures 1 to 10 The seal fixture 1 and the stamping device 2 provided in the embodiment of the utility model are described below.

[0066] See also Figures 1 to 4 ,as well as Figures 8 to 10 In the first aspect, the embodiment of the utility model provides a seal fixture 1, including a mounting plate 10, a slide bar 20, a first elastic element 30 and a seal sleeve assembly 40, the mounting plate 10 is provided with a guide sleeve 11, the guide sleeve 11 has a guide hole 111 that passes vertically; the slide bar 20 is slidably matched with the guide hole 111, a connecting block 21 is provided at the bottom of the slide bar 20, a card slot 211 is provided at the bottom of the connecting block 21, one side of the card slot 211 passes through the connecting block 21 in the horizontal direction, and the other side walls of the opposite side of the card slot 211 intersect in their own extension direction; the two ends of the first elastic element 30 are respectively abutted against the slide bar 20 and the mounting plate 10, and are configured with a first preload force that moves the slide bar 20 upward; the bottom of the seal sleeve assembly 40 has a receiving groove for accommodating a seal 90, the top of the seal sleeve assembly 40 has a card block 411 that matches the card slot 211, and the seal sleeve assembly 40 is slidably inserted into the card slot 211 in the opening direction of the card slot 211.

[0067] Compared with the prior art, the seal holder 1 provided by the embodiment of the utility model has the following beneficial effects:

[0068] The seal fixture 1 provided by the embodiment of the utility model comprises a mounting plate 10, a slide bar 20, a first elastic element 30 and a seal sleeve assembly 40, wherein the slide bar 20 is slidably arranged on the mounting plate 10 in the vertical direction, and the seal sleeve assembly 40 is detachably arranged at the bottom of the slide bar 20, so as to facilitate the installation and replacement of the seal 90. The first elastic element 30 is arranged between the slide bar 20 and the mounting plate 10, and when the seal 90 is pressed down to complete the stamping, it can automatically reset under the action of the first preload force. When the utility model is used, the seal 90 is accommodated in the receiving groove, and the seal sleeve assembly 40 and the slide bar 20 are plugged and matched through the card slot 211 and the card block 411. Since the two opposite side walls of the card slot 211 are not parallel, the seal sleeve assembly 40 can only be loaded into the card slot 211 from one direction. With such a configuration, it is only necessary to ensure that the relative position of the seal 90 and the seal sleeve assembly 40 is correct when fixing the seal 90, and after installation, it can be easily ensured that the seal face information is always positive after stamping, which is convenient for use. The chapter cover assembly 40 and the slide bar 20 are detachably connected by a snap-fitting manner, so that the chapter cover can be quickly replaced. The chapter changing method is also relatively simple and convenient to use.

[0069] In the embodiment of the utility model, the mounting plate 10 is used to install and fix parts such as the guide sleeve 11 and the slide rod 20. According to needs, one or more guide sleeves 11 can be set on the mounting plate 10. Correspondingly, multiple slide rods 20, first elastic elements 30 and seal sleeve assemblies 40 are also respectively provided, so that stamping operations of different seals 90 can be performed multiple times.

[0070] The slide bar 20 is slidably matched with the guide hole 111 and can slide up and down along the guide hole 111. The bottom of the slide bar 20 is detachably connected to the seal cover assembly 40, and the seal 90 is detachably installed in the seal cover assembly 40. When stamping, the slide bar 20 is pressed to move the slide bar 20 downward, driving the seal cover assembly 40 and the seal 90 to move downward and stamp on the document below. When stamping is completed, the slide bar 20 is released, and the slide bar 20 can automatically reset upward under the first preload force of the first elastic element 30.

[0071] The connecting block 21 at the bottom of the slide bar 20 has a slot 211, which is matched with the block 411 of the chapter sleeve assembly 40. The two side walls of the slot 211 are not parallel (such as an eight-shaped shape), and intersect in their respective extension directions, so that the chapter sleeve assembly 40 can be prevented from being loaded from the opposite direction, which is an error-proof design. The specific shape of the slot 211 can be various, such as Figure 8 , Fig. 9 and Fig.10, the shape of the card block 411 is adapted to the card slot 211. When the card block 411 is installed in place, the card block 411 and the card slot 211 can be fixed as a whole by means of magnetic attraction, screw connection, card connection, etc. When the seal 90 needs to be replaced, the chapter sleeve assembly 40 is removed and replaced with other seals 90. It should be noted that the relative angle of the seal 90 and the chapter sleeve assembly 40 needs to be ensured during replacement, so that after being installed on the slide bar 20, the text or pattern after stamping can be guaranteed to be positive. Specifically, the position of the front alignment of the seal 90 can be marked by setting protrusions, depressions, arrows and other marks on the chapter sleeve assembly 40 to facilitate the installation of the seal 90.

[0072] The first elastic element 30 can be a cylindrical helical spring, a conical helical spring, an elastic rubber block or other parts capable of elastic deformation, and its function is to reset the slide bar 20 after the stamping is completed. For easy installation, the spring sleeve is arranged outside the slide bar 20, and a slide bar cover 23 is detachably installed on the top of the slide bar 20. The top end of the spring abuts against the slide bar cover 23, and the bottom end of the spring abuts against the mounting plate 10 or the guide sleeve 11, and the spring is compressed.

[0073] The seal sleeve assembly 40 is used to install and fix the seal 90. The seal sleeve assembly 40 has a receiving groove at the bottom. The receiving groove can be as follows: Figure 3 The step hole shown in the figure allows the seal 90 to abut against the inner step of the receiving groove after being placed, so as to position the seal 90. When placing the seal 90, the bottom of the seal surface can be aligned with the flat edge or arrow mark on the outer wall of the seal sleeve assembly 40, so as to ensure that the seal surface information is always positive after being stamped. After being installed in place, the seal 90 can be fixed by screws, straps, clamps 411, etc. The shape of the receiving groove can be round, square, oval, etc., and can accommodate seals 90 with a diameter of 38mm to 46mm, with strong adaptability.

[0074] See also Figures 1 to 4 In some possible embodiments, a guide groove 22 is vertically provided on the side wall of the slide bar 20, and a limit screw 112 is threadedly engaged with the guide sleeve 11. The screw end of the limit screw 112 penetrates the side wall of the guide sleeve 11 and slides with the guide groove 22. The design of the guide groove 22 and the limit screw 112 can limit the sliding distance of the slide bar 20 and the angle of the slide bar 20 to prevent the slide bar 20 from rotating.

[0075] See also Figures 1 to 4 In some possible embodiments, the chapter sleeve assembly 40 includes a connecting sleeve 41, a chapter sleeve body 42 and a locking ring 43. The top of the connecting sleeve 41 has a blocking block 411, and the bottom of the connecting sleeve 41 is provided with an adjustment hole; the bottom of the chapter sleeve body 42 has a receiving groove, and the upper part of the chapter sleeve body 42 is threadedly engaged with the adjustment hole; the locking ring 43 is threadedly engaged with the outer periphery of the chapter sleeve body 42 and abuts against the connecting sleeve 41.

[0076] In this embodiment, the chapter cover assembly 40 includes a connecting sleeve 41, a chapter cover body 42 and a locking ring 43. The upper part of the chapter cover body 42 is screwed into the connecting sleeve 41 through a thread, and its height can be adjusted by rotating the chapter cover body 42. After adjustment, it can be locked by tightening the locking ring 43 to prevent the chapter cover body 42 from rotating or moving.

[0077] See also Figure 3 and Figure 4 In some possible embodiments, a positioning bead 412 is embedded in the upper surface of the block 411 through a plunger, and a positioning groove for engaging with the positioning bead 412 is formed on the inner wall of the slot 211 .

[0078] like Figure 4 As shown, the card slot 211 can be a dovetail slot. During installation, the seal sleeve assembly 40 with the seal 90 fixed is pushed flat into the dovetail slot at the bottom of the slide bar 20. After being pushed into place, the positioning bead 412 on the top of the plunger enters the plunger of the slide bar 20 and aligns with the positioning groove. A click sound can be heard, and the operator can also sense whether it is pushed into place by hand. The card block 411 of the connecting sleeve 41 and the dovetail slot of the slide bar 20 are both set in an "eight" shape. The card block 411 of the connecting sleeve 41 can be inserted forward into the slide bar 20. This error-proofing setting can avoid errors in the direction of pushing the seal sleeve assembly 40.

[0079] See also Figures 1 to 3 In some possible embodiments, the side wall of the seal sleeve body 42 is threaded with a locking screw 44, the screw end of the locking screw 44 passes through the side wall of the seal sleeve body 42 and abuts against the seal 90. After the seal 90 is placed in place, tightening the locking screw 44 can fix the seal 90. When the seal 90 needs to be replaced, the locking screw 44 can be loosened to remove the seal 90.

[0080] See also Figure 7 In some possible embodiments, the mounting plate 10 is provided with a plurality of guide sleeves 11 along the circumferential direction, and the slide rod 20, the first elastic element 30 and the seal sleeve assembly 40 are respectively provided with a plurality of guide sleeves 11 corresponding to each other, which can meet the needs of multiple stamping.

[0081] See also Figures 5 to 7 In the second aspect, the embodiment of the utility model further provides a stamping device 2, comprising a mounting frame 50, a stamp fixture 1 and a lifting drive assembly 60. The mounting plate 10 is arranged on the mounting frame 50; the lifting drive assembly 60 is arranged on the mounting frame 50, and the lifting drive assembly 60 is located above the slide bar 20, and is used to drive the slide bar 20 to move downward.

[0082] The stamping device provided by the embodiment of the utility model adopts the stamp fixture provided by any of the above embodiments, and drives the slide bar 20 to move downward through the lifting drive component 60, so as to complete the automatic stamping action, which is simple to operate and convenient to use. Within the allowable range of the stamping device, the stamping device provided by the embodiment of the utility model can adapt to different file thicknesses. Regardless of the thickness of the file to be stamped, the stamping force provided by the stamping device is consistent, and the stamping effect is good.

[0083] In addition, when a lifting drive structure of a drive motor and a screw rod is used, the operator can directly adjust the stamping force. When the stamping force is too small, the drive motor can be controlled to continue to rotate forward for a certain period of time after the in-place optical coupler is triggered, so that the screw rod continues to be driven, which can increase the stamping force and help the operator adjust the stamping force according to the actual situation of the seal and the seal, making the seal clearer. In addition to the above technical effects, the stamping device provided by the utility model also has the same technical effects as the seal fixture in the above embodiment, which will not be repeated here.

[0084] The stamping device 2 provided in this embodiment includes a mounting frame 50, a stamp fixture 1 and a lifting drive assembly 60. The stamp fixture 1 is arranged on the mounting frame 50 and has one or more stamp sleeve assemblies 40. When there are multiple stamp sleeve assemblies 40, the multiple stamp sleeve assemblies 40 can be as follows: Figure 7 As shown, multiple ones are arranged along the circumferential direction. The stamping device 2 also includes a rotating drive component 80, which is used to drive the stamp fixture 1 to rotate around a vertical axis. When the corresponding stamp 90 rotates below the lifting drive component 60, the lifting drive component 60 is used to drive the corresponding slide bar 20 to move downward to complete the stamping.

[0085] The lifting drive assembly 60 can be a vertically arranged electric telescopic rod, a pneumatic push rod, a hydraulic lifting rod, etc. The rotating drive assembly 80 can be a motor, a hydraulic rotary motor, etc., which drives the mounting plate 10 to rotate through gear transmission, chain transmission, belt transmission, etc. to achieve the switching of multiple seals 90.

[0086] The stamping method of the stamping machine 90 in the prior art is that a motor fixed somewhere drives the screw rod 62 and the nut to directly press the stamp sleeve downward to stamp. The detection methods for stamping in place are different. A driver is used to send pulses to the stepper motor. The number of pulses is different for documents to be stamped at different heights. The maximum number of pulses is used to stamp thicker documents, which is easy to cause damage to the stepper motor during long-term use. The DC motor relies on optical coupling detection or direct stalling. The stamping force for documents to be stamped at different heights is quite different. When stamping thinner documents, the same setting for stamping thicker documents will cause the motor to stall. Long-term stalling will have a greater impact on the life of the motor.

[0087] In order to solve the above problems, the utility model provides a stamping device 2 that can adapt to any file thickness within a certain height range. This device simulates the manual stamping process, first presses the seal 90 to stamp on the file, and then presses hard to make the seal clear. The stamping device provided by the utility model embodiment adopts the design of double spring asynchronous action during stamping, so that the stamping force of files of different thicknesses is consistent, which better guarantees the consistency of the clarity of the seal, the product has a wide range of applications, and the stamping effect can be guaranteed. In addition, after the stamp-in-place baffle 72 triggers the stamp-in-place optical coupler 71, the drive motor 61 still rotates for a certain length of time or is driven for a certain number of steps, so that the stamping force can be controlled and adjusted, which is more convenient for the operator to adjust the stamping force in real time according to different stamp conditions, obtain a clearer seal, and is easy to adjust. The control logic of this device is simple, the stamping is clear, the motor does not block during the stamping process, the reaction force during stamping is small, the head of the stamping machine does not rise, the equipment frame structure can be simplified, and the equipment maintenance cycle can be extended.

[0088] In order to achieve the above purpose, the specific implementation method of the utility model is: please refer to Figure 5 , Figure 6 and Figure 7 In some possible embodiments, the lifting drive assembly 60 includes a driving motor 61, a screw rod 62, a nut seat 63, a pressure plate 64, a guide column 65 and a second elastic element 66. The driving motor 61 is arranged on the mounting frame 50; the screw rod 62 is vertically arranged on the mounting frame 50 and is drivingly connected to the output shaft of the driving motor 61; the nut seat 63 is threadedly matched with the screw rod 62; the pressure plate 64 is arranged below the nut seat 63; the guide column 65 is arranged in the vertical direction, and the guide column 65 includes a first guide portion and a second guide portion arranged from top to bottom, and the diameter of the first guide portion is larger than that of the second guide portion. The first guide part is slidably matched with the mounting frame 50, the second guide part is slidably matched with the nut seat 63, and is connected to the pressure plate 64; the two ends of the second elastic element 66 are respectively abutted against the pressure plate 64 and the nut seat 63, and are configured with a second preload force to move the pressure plate 64 downward. Since the diameter of the first guide part is larger than that of the second guide part, the step between the first guide part and the second guide part can abut against the nut seat 63 to prevent the nut seat 63 from moving upward, the second elastic element 66 is compressed, and the second preload force is greater than the first preload force, which can be twice the first preload force. The second elastic element 66 can be a cylindrical helical spring, a conical helical spring, or other parts that can undergo elastic deformation.

[0089] The mounting frame 50 includes four motor pillars, and a fixed top plate and a motor fixing plate are respectively installed at the upper and lower ends of the motor pillars. The fixed top plate is fixed, and a driving motor 61 is installed on the motor fixing plate. A screw rod 62 is installed on the motor extension shaft, and a nut seat 63 is sleeved on the screw rod 62. A pressing plate 64 is provided below the nut seat 63, and a hole is provided on the pressing plate 64 for the screw rod 62 to pass through.

[0090] In this embodiment, the lifting drive assembly 60 includes a driving motor 61, a screw rod 62, a nut seat 63, a pressing plate 64, a guide column 65 and a second elastic element 66. The driving motor 61 is connected to the screw rod 62 in a transmission manner and can drive the screw rod 62 to rotate. The pressing plate 64 slides with the mounting frame 50 through the guide column 65, and the pressing plate 64 can move up and down. The nut seat 63 is threadedly matched with the screw rod 62 on the one hand, and slides with the guide column 65 on the other hand. When the driving motor 61 drives the screw rod 62 to rotate, the nut seat 63 moves downward, driving the second elastic element 66 and the pressing plate 64 to move downward until the pressing plate 64 abuts against the top of the slide bar 20 below. The screw rod 62 continues to drive the nut seat 63 to move downward, and the second elastic element 66 is further compressed, so that the pressing plate 64 presses the slide bar 20 downward, and the slide bar 20 drives the seal sleeve assembly 40 and the seal 90 to complete the stamping. Due to the presence of the second elastic element 66, the downward movement of the nut seat 63 can gradually increase the stamping force, thereby achieving a gradual increase in the stamping force. The stamping device 2 provided by the utility model can simulate the manual stamping process, with clear stamping and simple control logic. It can also be adapted to stamp documents of any height within a certain range, and has strong adaptability. When the stamping is completed, the motor reverses to drive the nut seat 63 to rise, and the seal sleeve assembly 40 can be reset under the action of the first elastic element 30, and the pressing plate 64 can be reset under the action of the second elastic element 66.

[0091] See also Figure 5 and Figure 6 In some possible embodiments, the stamping device 2 also includes an in-place detection component 70, which includes a stamping in-place optical coupler 71, a stamping in-place baffle 72, a reset optical coupler 73 and a reset baffle 74. The stamping in-place optical coupler 71 is arranged on the nut seat 63; the stamping in-place baffle 72 is arranged on the pressure plate 64, and corresponds to the stamping in-place optical coupler 71 up and down; the reset optical coupler 73 is arranged on the mounting bracket 50; the reset baffle 74 is arranged on the nut seat 63, and corresponds to the reset optical coupler 73 up and down.

[0092] In this embodiment, the stamping optical coupler 71 and the stamping baffle 72 are used to detect whether the stamp is in place, and the reset optical coupler 73 and the reset baffle 74 are used to detect whether the nut 63 is reset. The optical coupler component can directly select existing products on the market, and there is no restriction on its specific model, as long as it can meet the use requirements. The specific working process is: first, the main control unit receives the instruction to stamp, and the drive motor 61 is started, driving the screw rod 62 to start forward rotation. The nut 63, the stamp correction spring (i.e., the second elastic element 66) and the pressing plate 64 move downward at the same time. After the pressing plate 64 moves down for a period of idle travel, it contacts the slide cover 23, and then moves down, compressing the stamp sleeve reset spring (i.e., the first elastic element 30) until the stamp 90 contacts the document to be stamped. Then the drive motor 61 continues to rotate forward and starts to compress the stamp correction spring. This is the process of stamping with force. When the stamping baffle 72 blocks the stamping optical coupler 71, the optical coupler is triggered and gives a signal to the motor to reverse. All movable parts move upward, the stamp correction spring is reset first, the stamping optical coupler 71 is separated from the blocking piece, the stamp sleeve reset spring is reset, and then the pressing plate 64 leaves the slide bar cover 23, and the nut continues to move upward. Finally, when the reset baffle 74 blocks the reset optical coupler 73, the optical coupler is triggered, and the drive motor 61 is ordered to stop reversing, and all parts are reset.

[0093] It should be noted that the key to this structure is the preload force of the stamp correction spring and the stamp sleeve reset spring. The preload force of the stamp correction spring should be greater than the preload force of the stamp sleeve reset spring. The specific force can be set according to the actual situation. For example, in a specific embodiment, the stiffness coefficient of the stamp correction spring is calculated to be more than twice that of the stamp sleeve reset spring to achieve this effect. When stamping, the soft stamp sleeve reset spring is compressed first. At this time, the nut seat 63, the hard stamp correction spring and the pressing plate 64 can be regarded as a rigid body, which moves downward as a whole. No matter how thick the document is pressed by the stamp sleeve reset spring, the stamp correction spring will continue to be compressed only when the driving motor 61 continues to rotate. This process simulates the process of manual stamping, where the stamp first contacts the document with 90 degrees of contact, and then stamps with force. Within the working stroke of the stamp sleeve reset spring, documents of any height can be stamped, and the stamping force can be guaranteed to be the same for documents of different thicknesses, ensuring the consistency of the clarity of the printed text, and the control logic is consistent. As long as the stamp is in place, the optical coupler 71 is triggered, indicating that the stamping force is in place, and then the driving motor 61 is reversed and reset. In addition, after the stamping optical coupler 71 is triggered, the driving motor 61 can be used as a base point to continue running for a certain length of time or be driven for a certain number of steps, so that the stamping force can be increased. In practical applications, the running length or number of steps of the driving motor can be used as a basis to set several gears on the display end to indicate the stamping force, so that the operator can adjust the stamping force in real time according to different stamps and stamping conditions to obtain a clearer stamp.

[0094] It can be understood that the various parts in the above-mentioned embodiments can be freely combined or deleted to form different combination embodiments. The specific contents of each combination embodiment will not be repeated here. After this description, it can be considered that the utility model specification has recorded various combination embodiments and can support different combination embodiments.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seal holder, characterized in that: include: The mounting plate is provided with a guide sleeve, wherein the guide sleeve has a vertically penetrating guide hole; A slide bar is slidably matched with the guide hole, a connecting block is provided at the bottom of the slide bar, a slot is provided at the bottom of the connecting block, one side of the slot passes through the connecting block in a horizontal direction, and two opposite side walls of the other side of the slot intersect in their own extension direction; a first elastic element, two ends of which are respectively in contact with the slide bar and the mounting plate, and are provided with a first pre-tightening force to move the slide bar upward; as well as A seal sleeve assembly, wherein the bottom of the seal sleeve assembly is provided with a receiving groove for accommodating a seal, the top of the seal sleeve assembly is provided with a clamping block adapted to the clamping groove, and the seal sleeve assembly is slidably inserted into the clamping groove in the opening direction of the clamping groove.

2. The seal holder according to claim 1, characterized in that: A guide groove is vertically provided on the side wall of the slide rod. The guide sleeve is threadedly matched with a limit screw. The screw end of the limit screw penetrates the side wall of the guide sleeve and is slidably matched with the guide groove.

3. The seal holder according to claim 1, characterized in that: The chapter set assembly comprises: A connecting sleeve, the top of which is provided with the clamping block, and the bottom of which is provided with an adjustment hole; a chapter cover body, the bottom of which is provided with the receiving groove, and the upper part of which is threadedly engaged with the adjusting hole; and The locking ring is threadably fitted on the outer circumference of the chapter sleeve body and abuts against the connecting sleeve.

4. The seal holder according to claim 3, characterized in that: A positioning bead is embedded on the upper surface of the clamping block, and a positioning groove for clamping and cooperating with the positioning bead is formed on the inner wall of the clamping slot.

5. The seal holder according to claim 3, characterized in that: The side wall thread of the chapter sleeve body is matched with a locking screw, and the screw end of the locking screw passes through the side wall of the chapter sleeve body and abuts against the seal.

6. The seal holder according to claim 1, characterized in that: The mounting plate is provided with a plurality of guide sleeves along the circumferential direction, and the slide rod, the first elastic element and the chapter sleeve assembly are respectively provided with a plurality of guide sleeves in one-to-one correspondence.

7. The stamping device is characterized in that: include: Mounting frame; The seal fixture according to any one of claims 1 to 6, wherein the mounting plate is arranged on the mounting frame; as well as A lifting drive assembly is arranged on the mounting frame. The lifting drive assembly is located above the slide bar and is used for driving the slide bar to move downward.

8. The stamping device according to claim 7, characterized in that: The lifting drive assembly comprises: A driving motor, arranged on the mounting frame; A screw rod is vertically arranged on the mounting frame and drivingly connected to the output shaft of the driving motor; A nut seat, matched with the thread of the screw rod; A pressing plate, arranged below the nut holder; A guide column is arranged in a vertical direction, the guide column includes a first guide portion and a second guide portion arranged from top to bottom, the diameter of the first guide portion is larger than that of the second guide portion, the first guide portion is slidably matched with the mounting frame, the second guide portion is slidably matched with the nut seat, and is connected to the pressing plate; and The second elastic element has two ends respectively abutting against the pressing plate and the nut seat, and is provided with a second pre-tightening force for moving the pressing plate downward, wherein the second pre-tightening force is greater than the first pre-tightening force.

9. The stamping device according to claim 8, characterized in that: The stamping device also includes an in-place detection component, which includes: The stamped optical coupler is arranged on the nut holder; A stamping-in-place blocking piece is arranged on the pressure plate and corresponds to the stamping-in-place optical coupler up and down; A reset optical coupler, disposed on the mounting frame; and The reset baffle is arranged on the nut seat and corresponds to the reset optical coupler up and down.

10. The stamping device according to claim 7, characterized in that: The stamping device further comprises a rotation driving assembly, and the rotation driving assembly is used for driving the stamp fixture to rotate around a vertical axis.

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