Stamp clamping device and stamper machine

Abstract

The utility model discloses a stamp clamping device, which relates to the technical field of stamps, and comprises a cylinder body for storing a stamp, an auxiliary clamping ring and a plurality of clamping pieces, the auxiliary clamping ring is arranged in the cylinder body and surrounds the inner wall of the cylinder body, and the clamping pieces are arranged on the inner wall of the cylinder body. An inner hole of the auxiliary clamping ring is used for accommodating the seal; the multiple clamping pieces penetrate through the side wall of the barrel to abut against the peripheral wall of the auxiliary clamping ring so that the auxiliary clamping ring can be clamped in the barrel. According to the utility model, a plurality of clamping pieces are used for applying clamping force to the auxiliary clamping ring, so that the auxiliary clamping ring is clamped in the cylinder body. The auxiliary clamping ring enables the seal to be more stable in the clamp, and the situations of shaking, displacement and the like in the stamping process are prevented. And meanwhile, the auxiliary clamping ring can adapt to stamps of different sizes, the structure is simple, and operation is easy when the stamps are mounted and dismounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to seal technology field, concretely relates to a seal clamping device and seal machine. BACKGROUND

[0002] Electronic seal machine adopts mechanical structure and electronic control technology to realize the clamping and seal operation of seal. Usually equipped with special seal clamp, can firmly clamp seal, and completes the seal action through the automatic process. Possess identity authentication, authorization management, seal record function, can integrate with enterprise's office system, realizes remote approval and monitoring.

[0003] In the related art, the clamping structure of some electronic seal machines appears abnormal in the clamping process of the seal, such as seal inclination, not completely clamped and the like. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems in the related art to some extent. Therefore, the utility model provides a seal clamping device and seal machine.

[0005] In order to achieve the above purpose, the first aspect of the utility model provides a seal clamping device, which comprises a barrel for storing a seal, the clamping device further comprises an auxiliary clamping ring and a plurality of clamping pieces, the auxiliary clamping ring is arranged in the inside of the barrel and surrounds the inner wall of the barrel, and the inner hole of the auxiliary clamping ring is used for accommodating the seal; a plurality of clamping pieces penetrate the side wall of the barrel and abut against the outer peripheral wall of the auxiliary clamping ring, so as to clamp the auxiliary clamping ring in the barrel.

[0006] The application has the following beneficial effects: a plurality of clamping pieces are used to apply clamping force to the auxiliary clamping ring to clamp the auxiliary clamping ring in the barrel. The auxiliary clamping ring can make the seal more stable in the clamp, prevent shaking and displacement during the seal process, and the like. At the same time, the auxiliary clamping ring can adapt to different sizes of the seal, and the structure is simple, and the operation is simple when installing and dismounting the seal.

[0007] Optionally, the side wall of the barrel is provided with a through hole corresponding to the clamping piece, and the clamping piece comprises a columnar clamping body; the columnar clamping body penetrates the through hole and abuts against the outer peripheral wall of the auxiliary clamping ring, and the columnar clamping body can move and fix along the axial direction of the through hole.

[0008] Optionally, the columnar clamping body is a screw, the through hole is provided with a nut matched with the screw, and a plurality of screws pass through a plurality of through holes one by one and are screwed into the corresponding nuts.

[0009] Optionally, the barrel body comprises a first clamping section and a second clamping section in communication with each other, the first clamping section is used for clamping and fixing the seal head of the seal, and the second clamping section is used for clamping and fixing the seal handle of the seal; a step portion is formed at the connection between the first clamping section and the second clamping section, the step portion is used for cooperating with the seal head of the seal to limit the relative position of the seal and the barrel body in the axial direction of the barrel body.

[0010] Optionally, the auxiliary clamping ring is arranged in the first clamping section, an inner wall of the auxiliary clamping ring is provided with an adhesive layer used for adhesively connecting with the seal head of the seal; a plurality of mounting portions protruding outward in the radial direction of the barrel body are arranged on the outer side wall of the first clamping section and correspond to the auxiliary clamping ring, the plurality of mounting portions and the plurality of clamping pieces are arranged one-to-one, and a through hole penetrating into the inside of the first clamping section is arranged on each mounting portion; the clamping piece comprises a columnar clamping body, the columnar clamping body abuts against the outer peripheral wall of the auxiliary clamping ring by penetrating through the through hole, and the columnar clamping body can move and be fixed in the axial direction of the through hole.

[0011] Optionally, the number of the mounting portions is four, the clamping pieces corresponding to each mounting portion are all perpendicular to the outer peripheral wall of the auxiliary clamping ring, and the four clamping pieces are opposite to each other.

[0012] Optionally, the second clamping section is provided with a clamping structure, a clamping structure and a clamping ring, the clamping structure is used for clamping the seal handle of the seal, the clamping structure is used for limiting the axial position of the clamping ring along the barrel body; the clamping ring is arranged outside the clamping structure and the clamping structure, and the clamping structure is used for moving in the axial direction of the barrel body to push the clamping structure to exert clamping force on the seal handle of the seal.

[0013] Optionally, the clamping structure comprises two clamping portions arranged oppositely, a side wall of the second clamping section is provided with a first notch corresponding to the clamping portion, and the clamping portion is hinged at the first notch; an outer side wall of the clamping portion is provided with a beveled portion, and an inner wall of the clamping ring is in contact with the beveled portion to push the clamping portion to exert clamping force towards the seal handle of the seal;

[0014] Optionally, the clamping structure comprises two clamping portions arranged oppositely, a side wall of the second clamping section is provided with a second notch corresponding to the clamping portion, and the clamping portion is flexibly connected with the second notch at one end in the axial direction of the barrel body, and the other end of the clamping portion is a free end; an outer side wall of the clamping portion is provided with an adjusting tooth portion, and an inner wall of the clamping ring is provided with a clamping tooth portion corresponding to the adjusting tooth portion.

[0015] The second aspect of the utility model provides a seal machine, including shell, seal clamping device and seal cover, the shell forms and has the opening that communicates with the cavity and outside, the seal cover is hinged at the opening, the seal clamping device is used for clamping seal, the seal clamping device is movably arranged in the cavity, to make the seal can extend the opening and carry out seal, the seal clamping device is the seal clamping device provided by the first aspect of the utility model.

[0016] The features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully demonstrated in combination with the drawings, but it is not a limitation on the technical scheme of the utility model. In addition, the features, elements and components appearing in each of the following text and drawings are multiple, and different symbols or numbers are marked for convenience of representation, but all represent the same or similar structure or function parts. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings:

[0018] Figure 1 It is the structural schematic diagram of the utility model.

[0019] Figure 2 It is the assembly schematic diagram of the utility model.

[0020] Figure 3 It is the sectional view of the utility model.

[0021] Figure 4 It is the structural schematic diagram of the seal and clamping structure of the utility model.

[0022] Wherein, 1, seal, 11, chapter head, 12, chapter handle, 2, auxiliary clamping ring, 3, clamping piece, 4, barrel, 41, first clamping section, 410, mounting portion, 42, second clamping section, 420, clamping structure, 4210, inclined surface part, 422, clamping ring, 4200, clamping tooth part, 5, nut. DETAILED DESCRIPTION

[0023] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar function throughout. Based on the embodiments in the embodiments, it is intended to explain the utility model, and can not be understood as a limitation on the utility model.

[0024] "one embodiment" or "an embodiment" or "example" or "exemplary" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0025] In the related art, an electronic seal machine is usually equipped with a special seal clamp, which can clamp a seal and complete the stamping action through an automated process. However, if the seal encounters an uneven stamping surface or is subjected to external factors such as movement or vibration of the stamping machine during stamping, the seal may become loose in the clamp, resulting in a deviation of the stamping position and a blurred seal pattern. Therefore, it is necessary to design a clamping structure that can enhance the fixing effect of the seal, adapt to seals of different sizes, and be simple to operate when installing and removing the seal.

[0026] In view of this, please refer to Figure 1 The utility model provides a seal clamping device, including the cylinder body 4 for depositing seal 1, the clamping device still includes auxiliary clamping ring 2 and a plurality of clamping pieces 3, auxiliary clamping ring 2 sets up in the inside of cylinder body 4 and surrounds the inner wall of cylinder body 4, and auxiliary clamping ring 2 is used between the inner wall of cylinder body 4 and seal 1, a plurality of clamping pieces 3 penetrates the side wall of cylinder body 4 and the outer circumferential wall of auxiliary clamping ring 2 abuts to clamp auxiliary clamping ring 2 in cylinder body 4.

[0027] In this embodiment, the cylinder body 4 is a cylindrical structure with one end closed and the other end open, but the utility model is not limited to this. In actual application, the cylinder body can be set to any shape, such as a square cylinder or other polygonal cylinder. For some special-shaped seals or components that require special clamping methods, a non-regular polygonal cylinder structure can be designed to better adapt to different scenarios.

[0028] A plurality of clamping pieces 3 are used to apply clamping force to the auxiliary clamping ring 2 to clamp the auxiliary clamping ring 2 in the cylinder body 4. After the seal is placed inside the cylinder body 4, it is loaded into the auxiliary clamping ring 2. After loading, the cylinder body 4 is inverted and placed on the desktop, and the clamping pieces are installed on the cylinder body 4 in sequence to clamp the auxiliary clamping ring 2. When the seal needs to be removed from the cylinder body 4, the clamping pieces 3 are first removed from the cylinder body 4, the seal 1 is pulled out of the mouth of the cylinder body 4, and the auxiliary clamping ring 2 and the seal 1 are separated. The seal clamping device provided by the utility model can make the seal more stable in the clamp and prevent shaking and displacement during stamping.

[0029] In the embodiment, the side wall of the barrel 4 is provided with a through hole corresponding to the clamping piece 3, the clamping piece 3 comprises a columnar clamping body, the columnar clamping body abuts against the outer peripheral wall of the auxiliary clamping ring 2 through the through hole, and the columnar clamping body can move and fix along the axial direction of the through hole.

[0030] In the embodiment, the columnar clamping body is a screw, a nut matched with the screw is arranged in the through hole, a plurality of screws pass through the plurality of through holes one by one and are screwed into the corresponding nuts 5, so as to apply clamping force to the auxiliary clamping ring 2 and clamp the auxiliary clamping ring 2 in the barrel 4.

[0031] Further, the utility model discloses in order to increase the clamping effect of seal 1, the barrel 4 includes intercommunication's first clamping section 41 and second clamping section 42, first clamping section 41 is used for clamping fixed the chapter head 11 of seal 1, second clamping section 42 is used for clamping fixed chapter handle 12 of seal 2, first clamping section 41 and second clamping section 42's junction forms step part 43, step part 43 is used for with chapter head 11 of seal 1 cooperation to define seal 1 with barrel 4 in the relative position of barrel 4 axial direction.

[0032] The auxiliary clamping ring 2 is arranged in the first clamping section 41, and the inner wall of the auxiliary clamping ring 2 is provided with an adhesive layer for adhesively connecting the chapter head 11 of the seal 1; a plurality of mounting portions 410 protrude outward along the radial direction of the barrel 4 on the outer side wall of the first clamping section and correspond to the auxiliary clamping ring 2, and the plurality of mounting portions 410 are one-to-one corresponding to the plurality of clamping pieces 3, each mounting portion 410 is provided with a through hole penetrating into the inside of the first clamping section 41; the clamping piece 3 comprises a columnar clamping body, the columnar clamping body abuts against the outer peripheral wall of the auxiliary clamping ring 2 through the through hole, and the columnar clamping body can move and fix along the axial direction of the through hole.

[0033] The mounting portion 410 is provided to avoid the columnar clamping body being too long and exceeding the outer wall of the barrel after installation, which may interfere with the assembly process of the seal machine or collide with other components or operators, not only possibly damaging other components, but also possibly hindering the operators when performing operations such as inspection, maintenance and replacement of components of the seal machine, increasing the difficulty and time cost of the operation.

[0034] In some other embodiments, the structure of the clamping member comprises a columnar clamping member, and a plurality of positioning grooves are formed in the mounting portion 410 and extend through the through hole; a spring clamp is sleeved on the columnar clamping member, a positioning pin is mounted on the spring clamp, and the positioning pin can be matched with the positioning grooves on the mounting portion. When the columnar clamping member needs to be moved, the positioning pin is pressed to disengage the positioning pin from the positioning grooves, and at this time, the columnar clamping member can be freely moved along the axial direction of the through hole. After being moved to a suitable position, the positioning pin is re-engaged in the corresponding positioning groove under the action of the spring force, so that the columnar clamping member is moved and fixed along the axial direction of the through hole.

[0035] In the embodiment, the number of the columnar clamping bodies is four, the four columnar clamping bodies are perpendicular to the outer peripheral wall of the auxiliary clamping ring 2, and the four columnar clamping bodies are opposite to each other. That is, the clamping is chordally symmetrical, and the chordally symmetrical clamping of the auxiliary clamping ring 2 on one chord of the circular auxiliary clamping ring 2 can fix the circular auxiliary clamping ring 2. The chordally symmetrical clamping of the auxiliary clamping ring 2 can make the circular auxiliary clamping ring 2 receive clamping forces of equal size and opposite direction at positions opposite to each other on the chord, and the force distribution is relatively uniform. Since the clamping forces are symmetrically distributed, the resultant force of the circular auxiliary clamping ring 2 during clamping is zero, and the circular auxiliary clamping ring 2 will not be deviated or rotated due to uneven force, and can maintain good stability during clamping of the seal.

[0036] In use, after the seal 1 is placed in the inner portion of the barrel 4, the auxiliary clamping ring 2 is loaded. After the auxiliary clamping ring 2 is loaded, the barrel 4 is placed upside down on the desktop, and then the four screws are sequentially tightened in the through hole of the barrel 4 in diagonal order, and the auxiliary clamping ring 2 is clamped by the four screws. The diagonal screwing method can make each screw be gradually and uniformly stressed, so that the clamped auxiliary clamping ring 2 uniformly receives pressure on the entire contact surface, and the skew or distortion caused by uneven stress is reduced. The diagonal screwing can adjust the position and stress of the auxiliary clamping ring 2 as a whole each time the screw is tightened, effectively reduces the accumulated error, and makes the installation more accurate. This clamping method can better ensure that the seal face of the seal 1 is not skewed and the seal is clear. When the seal needs to be taken out of the barrel 4, the screws are first unscrewed from the through hole of the barrel 4, and then the seal 1 is pulled out of the opening of the barrel 4, and the auxiliary clamping ring 2 is separated from the seal 1.

[0037] In some other optional embodiments, a plurality of columnar clamping bodies are arranged at intervals along the circumferential direction of the barrel 4, and each columnar clamping body is arranged along the radial direction of the barrel 4. When the auxiliary clamping ring 2 is clamped in the radial direction, the radial clamping force of the columnar clamping body is perpendicular to the circumferential direction of the circular workpiece, the clamping force is uniformly distributed on the circumference of the auxiliary clamping ring 2, and the seal face of the seal 1 is not skewed and the seal is clear.

[0038] In this embodiment, refer to Figure 2 The auxiliary clamping ring 2 is a circular ring structure, but the present invention is not limited to this. In practical applications, the internal shape of the auxiliary clamping ring 2 is adapted to the external shape of the seal 1. The auxiliary clamping ring 2 is used to tightly fit on the outer periphery of the seal 1. The shape of the auxiliary clamping ring 2 can be a square ring structure or other polygonal ring structures, etc.

[0039] In this embodiment, the auxiliary clamping ring 2 is made of a rigid material, such as metal, engineering plastic, or ceramic. Due to the inherent stability of the rigid auxiliary clamping ring, it can effectively reduce the accumulation of errors during repeated clamping and disassembly of the stamp 1. During the stamping process, if an uneven stamping surface is encountered, or due to external forces such as movement or vibration of the stamping machine itself, the stamp may become loose in the clamp, resulting in stamp position displacement and blurred stamp pattern. The rigid auxiliary clamping ring can withstand greater external forces and loads, maintaining the stability and accuracy of stamp clamping.

[0040] In this embodiment, the auxiliary clamping ring 2 has various specifications. For example, the thickness of the auxiliary clamping ring 2 along the radial direction of the cylinder 4 is 0.5mm, 1mm, 2mm, or 3mm. The cooperation between the clamping member 3 and the auxiliary clamping ring 2 can accommodate stamps of different sizes. The auxiliary clamping ring of the appropriate specification can fit tightly with the stamp 1 to provide uniform and stable clamping force and prevent the stamp 1 from loosening or shifting during the stamping process.

[0041] Furthermore, to make the connection between the auxiliary clamping ring and the cylinder more stable and to provide a certain degree of cushioning, an adhesive layer is provided on the inner wall of the auxiliary clamping ring 2. The adhesive layer covers the inner wall of the auxiliary clamping ring 2 and is used to bond the auxiliary clamping ring 2 to the stamp 1. The adhesive layer can be 3M double-sided tape, but this utility model is not limited to this. In practical applications, the adhesive layer can also be other adhesive materials well known to those skilled in the art, such as foam tape. Foam tape has good cushioning and sealing performance, strong adhesion, and can adapt to objects of different shapes and surfaces, effectively absorbing vibration and impact.

[0042] The inner wall of the auxiliary clamping ring 2 made of hard material is pasted with the outer peripheral wall of the seal 1 by using 3M glue, so that the firmness of the connection between the two can be ensured, and wear or damage caused by direct contact between the two can be avoided to a certain extent. In addition, the 3M glue is used to increase the friction and adhesion between the auxiliary clamping ring 2 and the seal 1, so that the seal 1 cannot be easily loosened or shifted during use. The seal 1 can be more stable in the clamping device, preventing the seal 1 from shaking or shifting during the sealing process. By providing an adhesive layer on the inner wall of the auxiliary clamping ring 2, the seal 1 is fixedly connected with the auxiliary clamping ring 2, the seal 1 is quickly positioned, and the installation of the seal 1 is more firm and not easy to fall off.

[0043] In some embodiments, the second clamping section 42 is provided with a clamping structure 421, a clamping structure 420 and a clamping ring 422, the clamping structure is used to clamp the seal handle of the seal 1, the clamping structure is used to limit the axial position of the clamping ring along the cylinder 1; the clamping ring sleeve is arranged outside the clamping structure and the clamping structure, the clamping structure is used to move along the axial direction of the cylinder 1, so as to push the clamping structure to exert clamping force on the seal handle of the seal 1.

[0044] As shown in Figures 2-4 The clamping structure 421 includes two clamping parts arranged oppositely, the side wall of the second clamping section 42 is provided with a first notch corresponding to the clamping part, and the clamping part is hinged at the first notch; the outer side wall of the clamping part is provided with a beveled part 4210, and the inner wall of the clamping ring 422 is in contact with the beveled part 4210, so as to push the clamping part to exert clamping force on the seal handle 12 of the seal 1.

[0045] The clamping structure 420 includes two clamping parts arranged oppositely, the side wall of the second clamping section 42 is provided with a second notch corresponding to the clamping part, and the clamping part is hinged at one end of the cylinder 4 along the axial direction and the second notch, and the other end of the clamping part is a free end; the outer side wall of the clamping part is provided with an adjusting tooth part 4200, and the inner wall of the clamping ring 422 is provided with a clamping tooth part 4220 corresponding to the adjusting tooth part 4200.

[0046] The second aspect of the utility model provides a seal machine, including shell, seal clamping device and seal cover, the shell is formed with the cavity and has the opening that communicates with the cavity and outside, the seal cover is hinged at the opening, the seal clamping device is used for clamping seal, the seal clamping device is movably arranged in the cavity, to make the seal can protrude the opening and carry out seal; the clamping device is the clamping device provided in the first aspect of the utility model.

[0047] The stamp machine provided by the embodiment of the utility model, through the adoption of the stamp clamping device provided by each embodiment of the utility model, not only can enhance the stamp fixing effect, but also can adapt to stamps of different sizes, and the structure is simple, and the operation is simple when installing and dismounting the stamp.

[0048] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and the skilled person in the art should understand that the utility model includes but is not limited to the content described in the drawings and the above specific embodiment. Any modification not deviating from the function and structural principle of the utility model will be included in the scope of claims.

Claims

1. A seal holding device comprising a cartridge (4) for storing a seal (1), characterized in that The clamping device further comprises an auxiliary clamping ring (2) and a plurality of clamping members (3), the auxiliary clamping ring (2) is arranged inside the barrel (4) and surrounds the inner wall of the barrel (4), the inner hole of the auxiliary clamping ring (2) is used for accommodating the seal (1); a plurality of clamping members (3) penetrate the side wall of the barrel (4) and abut against the outer peripheral wall of the auxiliary clamping ring (2) to clamp the auxiliary clamping ring (2) in the barrel (4).

2. The seal holding device of claim 1, wherein The side wall of the barrel (4) is provided with a through hole corresponding to the clamping member (3), the clamping member (3) comprises a columnar clamping body; the columnar clamping body penetrates the through hole and abuts against the outer peripheral wall of the auxiliary clamping ring (2), and the columnar clamping body can move and fix along the axial direction of the through hole.

3. The stamp holding device of claim 2, wherein The columnar clamping body is a screw, a nut matched with the screw is arranged in the through hole, and a plurality of screws penetrate a plurality of through holes one by one and are screwed into corresponding nuts (5).

4. The stamp holding device according to any one of claims 1 to 3, characterized in that The barrel (4) comprises a first clamping section (41) and a second clamping section (42) in communication with each other, the first clamping section (41) is used for clamping and fixing the seal head (11) of the seal (1), and the second clamping section (42) is used for clamping and fixing the seal handle (12) of the seal (2); a step portion (43) is formed at the connection between the first clamping section (41) and the second clamping section (42), the step portion (43) is used for cooperating with the seal head (11) of the seal (1) to limit the relative position of the seal (1) and the barrel (4) in the axial direction of the barrel (4).

5. The stamp holding device of claim 4, wherein The auxiliary clamping ring (2) is arranged in the first clamping section (41), the inner wall of the auxiliary clamping ring (2) is provided with an adhesive layer used for adhesively connecting the seal head (11) of the seal (1); a plurality of mounting portions (410) protruding outward in the radial direction of the barrel (4) are arranged on the outer side wall of the first clamping section (41) and correspond to the auxiliary clamping ring (2), a plurality of mounting portions (410) are arranged one by one corresponding to a plurality of clamping members (3), and a through hole penetrating into the inside of the first clamping section (41) is arranged on each mounting portion (410); the clamping member (3) comprises a columnar clamping body, the columnar clamping body penetrates the through hole and abuts against the outer peripheral wall of the auxiliary clamping ring (2), and the columnar clamping body can move and fix along the axial direction of the through hole.

6. The stamp holding device of claim 5, wherein The number of mounting portions (410) is four, the clamping member (3) corresponding to each mounting portion (410) is perpendicular to the outer peripheral wall of the auxiliary clamping ring (2), and four clamping members (3) are opposite to each other.

7. The seal holder device of claim 4, wherein The second clamping section (42) is provided with a clamping structure (421) for clamping the handle (12) of the seal (1), a clamping ring (422) and a clamping structure (420) for limiting the axial position of the clamping ring along the cylinder (1); the clamping ring is arranged outside the clamping structure and the clamping structure (420); the clamping structure is movable along the axial direction of the cylinder (1) to push the clamping structure to exert clamping force on the handle (12) of the seal (1).

8. The stamp holding device of claim 7, wherein The clamping structure (421) comprises two clamping parts arranged oppositely, the side wall of the second clamping section (42) is provided with a first gap corresponding to the clamping parts, and the clamping parts are hinged at the first gap; the outer side wall of the clamping part is provided with a beveled part (4210), and the inner wall of the clamping ring (422) is in contact with the beveled part (4210) to push the clamping part to exert clamping force on the handle (12) of the seal (1).

9. The stamp holding device of claim 7, wherein The clamping structure (420) comprises two clamping parts arranged oppositely, the side wall of the second clamping section (42) is provided with a second gap corresponding to the clamping parts, one end of the clamping part along the axial direction of the cylinder (4) is hinged with the second gap, and the other end of the clamping part is a free end; the outer side wall of the clamping part is provided with an adjusting tooth part (4200), and the inner wall of the clamping ring (422) is provided with a clamping tooth part (4220) corresponding to the adjusting tooth part (4200) for clamping.

10. A stamping machine comprising a housing, a stamp holding device and a stamp cover, said housing being formed with a cavity and having an opening communicating with the outside of the cavity, said stamp cover being hinged at the opening; said stamp holding device for holding a stamp, said stamp holding device being movably arranged in the cavity to enable the stamp to project out of the opening for stamping; characterized in that, The seal clamping device is any one of claims 1-9.

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