Self-balancing stamping mechanism

Abstract

The invention discloses a self-balancing stamping mechanism which comprises a fixed frame, a movable table, a stamp and a pushing component. The movable table is connected to the fixed frame through an elastic connecting mechanism, and a movable positioning part is arranged on the front face of the movable table. The seal is connected to the back face of the movable table. The pushing component comprises a push rod suitable for being driven to move up and down, a push head is arranged at one end of the push rod, and the push head is suitable for being propped against the movable positioning part of the movable table under the movement of the push rod; when the push head abuts against the movable positioning part and the seal stamps, the movable table automatically swings around the movable positioning part along with the seal under the acting force of the elastic connecting mechanism. According to the self-resetting sealing device, sealing can be achieved when the paper face to be sealed inclines, self-resetting can be achieved when sealing is not conducted, and the maintenance-free effect is achieved.

Description

Technical Field

[0001] The invention relates to a self-balancing stamping mechanism, belonging to the technical field of stamps. Background Art

[0002] At present, the traditional stamping process usually includes: placing the document on the platform, the seal is located above the document, and the seal is driven downward by a motor or other actuator. This process requires guiding or limiting the seal. The common mechanism is: the motor drives the cam to rotate (or uses a slider mechanism), and the cam pushes the seal fixed on the guide rail downward to complete the stamping. For example, a self-inking seal disclosed in a Chinese patent with publication number CN110126491A. Another example is a seal disclosed in a Chinese patent with announcement number CN205097727U. However, this type of structure has the following problems: 1. Since stamping requires the guide rail and the seal to be perpendicular to the platform, tilting will cause incomplete stamping, resulting in poor portability; 2. Long-term use may cause deviations in verticality and fit, requiring manual recalibration, resulting in poor stability. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a self-balancing stamping mechanism, which can not only stamp when the paper to be stamped is tilted, but also reset itself when not stamped, thus achieving a maintenance-free effect.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a self-balancing stamping mechanism, comprising:

[0005] Fixed frame;

[0006] A movable platform, the movable platform is connected to the fixed frame through an elastic connection mechanism, and a movable positioning part is provided on the front of the movable platform;

[0007] A seal connected to the back of the movable table;

[0008] The pushing component includes a push rod suitable for being driven up and down, one end of the push rod is provided with a push head, and the push head is suitable for pushing on the movable positioning part of the movable platform under the movement of the push rod; wherein,

[0009] When the push head is placed on the movable positioning part and the seal is stamped, the movable platform swings around the movable positioning part along with the seal under the action of the elastic connection mechanism.

[0010] Furthermore, in order to be able to replace the seal and achieve automatic alignment between the movable platform and the seal, a magnetic part is embedded on the back of the movable platform, and a magnetic matching part is provided on the fitting surface of the seal with the movable platform. The seal and the movable platform are connected by magnetic attraction between the magnetic part and the magnetic matching part.

[0011] Furthermore, the magnetic component is arranged at the center position of the back side of the movable platform, and the magnetic matching component is arranged at the center position of the fitting surface of the seal.

[0012] Furthermore, the pushing component includes a push-pull electromagnet installed on the fixed frame.

[0013] Furthermore, the elastic connection mechanism includes a plurality of springs, one end of each spring is connected to the movable platform, and the other end of each spring is connected to the fixed frame.

[0014] Further, the connection points of the plurality of springs and the movable platform are arranged on a circle with a point on the center line of the push head or a point on the center line of the movable positioning portion as the center;

[0015] The connection points of the plurality of springs and the fixed frame are arranged on a circle with a point on the center line of the push head or a point on the center line of the movable positioning portion as the center.

[0016] Furthermore, at least three springs are provided.

[0017] Furthermore, the push head is provided with a pointed structure or a convex spherical structure, and the movable positioning portion is provided with a concave pit structure that cooperates with the pointed structure or the convex spherical structure.

[0018] Furthermore, the fixed frame includes a first frame and a second frame, the first frame is connected to the second frame, the pushing component is connected to the first frame, and the movable platform is connected to the second frame via an elastic connection mechanism.

[0019] After adopting the above technical solution, the present invention has the following beneficial effects:

[0020] 1. The present invention adopts an elastic connection mechanism to connect the movable platform and the fixed frame. This elastic traction method avoids the need to set up a guide mechanism and can also achieve a self-reset effect, maintenance-free, and simple structure.

[0021] 2. The present invention adopts a cooperative mode of the push head and the movable positioning part, so that when the seal is stamped, the movable platform can swing freely around the connection between the push head and the movable positioning part. No matter whether the paper surface to be stamped is inclined or horizontal, the seal can self-balance the position of the movable platform, and the stamping is clear and the position is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the self-balancing stamping mechanism of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the movable platform and the spring of the present invention;

[0024] Figure 3 The structure diagram of the self-balancing stamping mechanism of the present invention when stamping Figure 1 ;

[0025] Figure 4 The structure diagram of the self-balancing stamping mechanism of the present invention when stamping Figure 2 . DETAILED DESCRIPTION

[0026] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0027] like Figures 1 to 4 As shown, a self-balancing stamping mechanism comprises:

[0028] Fixed frame;

[0029] A movable platform is connected to the fixed frame through an elastic connection mechanism, and a movable positioning part is provided on the front of the movable platform;

[0030] A seal, which is connected to the back of the movable table;

[0031] The pushing component includes a push rod suitable for being driven up and down, and a push head is provided at one end of the push rod, and the push head is suitable for pushing on the movable positioning part of the movable platform under the movement of the push rod; wherein,

[0032] When the push head of the movable platform is placed on the movable positioning part and the seal is stamped, the movable platform swings around the movable positioning part along with the seal under the action of the elastic connection mechanism.

[0033] Specifically, in order to replace the seal and realize automatic alignment between the movable platform and the seal, a magnetic piece is embedded on the back of the movable platform, and a magnetic matching piece is provided on the fitting surface of the seal with the movable platform. The seal and the movable platform are connected by magnetic attraction between the magnetic piece and the magnetic matching piece.

[0034] Specifically, the magnetic piece is arranged at the center of the back side of the movable platform, and the magnetic matching piece is arranged at the center of the fitting surface of the seal.

[0035] Specifically, Figure 1 As shown, the push component includes a push-pull type electromagnet installed on the fixed frame, but is not limited thereto.

[0036] In this embodiment, a push-pull electromagnet is used to directly push the movable table through the push rod, without complex mechanism, maintenance-free, long service life, and the push-pull electromagnet has no lower thrust limit point. For example, the total stroke of the push-pull electromagnet is 10mm, so when stamping, it is OK to push 5mm (pushing 5mm can make the seal and paper stick together), and it is OK to push 8mm (pushing 8mm can make the seal and paper stick together), without lower limit point restriction; in addition, with the push-pull electromagnet, the time used for stamping once is only about 40ms, (If it needs to be very clear, 100ms is enough), the stamping efficiency is more than 10 times, and there is no need for stamp position detection. The push-pull electromagnet has its own reset spring, which can automatically restore the push rod self-balancing mode. Whether the stamp is clear and complete, it is necessary to ensure that the seal surface (and pressure direction) and the paper surface (platform surface) remain parallel. However, this embodiment allows the seal surface to automatically balance the movable platform, that is, even if the seal and the paper have a large inclination angle (for example, 30°), after the seal is stamped, the seal surface and the paper can be made to fit parallel to each other.

[0037] Specifically, the elastic connection mechanism may be a structure including a plurality of springs, one end of the spring is connected to the movable platform, and the other end of the spring is connected to the fixed frame.

[0038] Specifically, Figure 2 As shown, the connection points of the plurality of springs and the movable platform are arranged on a circle with a point on the center line of the push head or a point on the center line of the movable positioning portion as the center;

[0039] The connection points of the plurality of springs and the fixed frame are arranged on a circle with a point on the center line of the push head or a point on the center line of the movable positioning part as the center.

[0040] Specifically, at least three springs are provided, and in the present embodiment, four springs are preferably provided.

[0041] Specifically, the movable platform is a square structure, and four spring hanging points can be set on its four corners, and the corresponding mounted springs are connected to the corresponding spring hanging points.

[0042] In this embodiment, multiple springs are used to pull the seal position to the middle, so that maintenance-free effect can be achieved. At the same time, the seal can be reset by the spring, and the mechanism is extremely streamlined.

[0043] Specifically, Figure 3 , 4 As shown, the push head can be provided with a pointed structure or a convex spherical structure, and the movable positioning portion can be provided with a pit structure that cooperates with the pointed structure or the convex spherical structure; in this embodiment, the arrangement of the push head and the movable positioning portion avoids the slippage of the movable platform (only tilting is allowed, but slippage is not allowed); the push head can be a ball head nut, but is certainly not limited to this.

[0044] Specifically, Figure 1 As shown, the fixed frame includes a first frame and a second frame, the first frame is connected to the second frame, the pushing component (specifically a push-pull electromagnet) is connected to the first frame, and the movable platform is connected to the second frame through an elastic connection mechanism.

[0045] The specific working method of this embodiment is as follows:

[0046] 1. The push-pull electromagnet is energized and the push rod moves downward;

[0047] 2. The push rod pushes the movable table. Since the movable table is pulled by springs with the same force on all sides, the movable table moves along the force center, that is, in the direction of the push rod. The movement of the movable table drives the seal to move;

[0048] 3. When the seal touches the paper surface, the seal surface and the paper surface may not be parallel. If the push continues, the push force cannot control the skew of the movable platform. In fact, under the tension of the spring, the skew can be corrected, but it will eventually fail to withstand the push force of the push-pull electromagnet. The seal on the movable platform will be close to the paper surface (platform). Figure 3 , 4 As shown;

[0049] 4. After stamping is completed, the push-pull electromagnet is powered off, and the movable platform is reset under the tension of the spring. The moment the seal leaves the paper, the seal and the movable platform restore balance (not skewed), and the stamping process is completed.

[0050] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-balancing stamping mechanism, characterized in that: include: Fixed frame; A movable platform, the movable platform is connected to the fixed frame through an elastic connection mechanism, and a movable positioning part is provided on the front of the movable platform; A seal connected to the back of the movable table; The pushing component includes a push rod suitable for being driven up and down, one end of the push rod is provided with a push head, and the push head is suitable for pushing on the movable positioning part of the movable platform under the movement of the push rod; wherein, When the push head is placed on the movable positioning part and the seal is stamped, the movable platform swings around the movable positioning part along with the seal under the action of the elastic connection mechanism.

2. The self-balancing stamping mechanism according to claim 1, characterized in that: A magnetic piece is embedded on the back of the movable platform, and a magnetic matching piece is arranged on the fitting surface of the seal with the movable platform, and the seal and the movable platform are connected by magnetic attraction between the magnetic piece and the magnetic matching piece.

3. The self-balancing stamping mechanism according to claim 2, characterized in that: The magnetic component is arranged at the center position of the back side of the movable platform, and the magnetic matching component is arranged at the center position of the fitting surface of the seal.

4. The self-balancing stamping mechanism according to claim 1, characterized in that: The pushing component comprises a push-pull type electromagnet installed on a fixed frame.

5. The self-balancing stamping mechanism according to claim 1, characterized in that: The elastic connection mechanism comprises a plurality of springs, one end of each spring is connected to the movable platform, and the other end of each spring is connected to the fixed frame.

6. The self-balancing stamping mechanism according to claim 5, characterized in that: The connection points of the plurality of springs and the movable platform are arranged on a circle with a point on the center line of the push head or a point on the center line of the movable positioning portion as the center; The connection points of the plurality of springs and the fixed frame are arranged on a circle with a point on the center line of the push head or a point on the center line of the movable positioning portion as the center.

7. The self-balancing stamping mechanism according to claim 5, characterized in that: At least three springs are provided.

8. The self-balancing stamping mechanism according to claim 1, characterized in that: The push head is provided with a pointed structure or a convex spherical structure, and the movable positioning part is provided with a concave pit structure matched with the pointed structure or the convex spherical structure.

9. The self-balancing stamping mechanism according to claim 1, characterized in that: The fixed frame comprises a first frame and a second frame, the first frame is connected to the second frame, the pushing component is connected to the first frame, and the movable platform is connected to the second frame through an elastic connection mechanism.

Images