CN211764335U

CN211764335U - Automatic be stained with seal ink prevent stealing and seal

Info

Publication number: CN211764335U
Application number: CN201921859810.7U
Authority: CN
Inventors: 刘云平; 徐泽
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-10-27
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses an automatic be stained with seal ink prevent stealing and cover seal, including base, casing, circuit board, seal board, mud printing plate, indonesia board, elevator motor, coreless motor and screw-nut subassembly, the casing sets up on the base liftable, circuit board, elevator motor set up in the casing, and elevator motor's output shaft passes through the screw-nut subassembly and is connected with the seal board, the coreless motor sets up in the upper end of base, the mud printing plate is connected with the output shaft of coreless motor. Has the advantages that: whether the seal is authorized or not is realized through an electronic technology, and the seal action and the feedback information are further controlled in real time; the seal safety is improved, the economic loss of related enterprises or units is indirectly reduced, and the seal has good popularization value.

Description

Automatic be stained with seal ink prevent stealing and seal

Technical Field

The invention relates to the field of intelligent commerce, in particular to an anti-pilferage seal capable of automatically staining printing ink.

Background

At present, seal that has automatic be stained with seal ink adopts the seal face to keep attaching ink horn (the seal face is opposite with the file that needs the stamp under this state), later utilize mechanical structure to make the seal overturn to the file that needs the stamp one side when pressing the seal, after having stamped, utilize the spring to kick-back and resume initial condition, the seal is when initial condition, seal surface and seal ink contact, stamp at every turn and all carry out above-mentioned process, stamp at every turn and all realized the process of overturning seal face stamp after being stained with seal ink promptly. Since the ink is in the stamp body, it is troublesome for the user to disassemble the stamp in order to replace the ink. The patent CN201310166114 provides a method for solving the problems that most of the seals are not easy to disassemble the ink and to add ink, and an ink-adding process can be realized only by replacing the ink on the seal with an ink-adding member. The method is more convenient compared with the common seal.

Since the use of a seal to stamp multiple documents causes serious loss to relevant units or departments, the need for preventing the seal from being stamped by the seal is more and more extensive.

Disclosure of Invention

The invention aims to solve the defects of the background technology and provides an anti-pilferage seal capable of automatically staining printing ink, which is realized by the following technical scheme:

automatic be stained with anti-theft seal of stamping ink, including base, casing, circuit board, seal board, mud printing board, elevator motor, coreless motor and screw-nut subassembly, the casing sets up on the base with liftable, circuit board, elevator motor set up in the casing, and elevator motor's output shaft passes through the screw-nut subassembly and is connected with the seal board, the coreless motor sets up in the upper end of base, the output shaft of mud printing board and coreless motor.

The anti-pilferage seal capable of automatically dipping printing ink is further designed in that a reset unit is arranged on the inner wall of the shell, a limiting lug is arranged on the base, the reset unit comprises a straight rod and a spring, the straight rod is inserted into the top end of the shell in a parallel mode with the side wall of the shell and penetrates through the limiting lug, and the spring is sleeved on the straight rod.

The automatic be stained with seal ink prevent stealing seal's further design lie in, the circuit board includes STM32 controller, wireless transmission module and acceleration sensor, wireless transmission module, acceleration sensor respectively with STM32 controller communication connection.

The anti-pilferage seal capable of automatically staining the printing ink is further designed in that a proximity sensor is further arranged at the bottom of the base and is in communication connection with an STM32 controller.

The automatic anti-pilferage seal who is stained with printing ink further designs in that still includes the meter time unit, the meter time unit includes: the probe and the point touch switch, the probe sets up on the base, the point touch switch sets up on the casing corresponding to the probe, point touch switch and circuit board communication connection.

The anti-pilferage seal capable of automatically staining the printing ink is further designed in that the motor is connected to the top end of the shell through four connecting rods.

The anti-pilferage stamp capable of automatically dipping the printing ink is further designed to further comprise two connecting rods of the inkpad plate, and the output shafts of the two coreless motors are connected with the inkpad plate through the connecting rods of the inkpad plate.

The anti-pilferage seal capable of automatically staining the printing ink is further designed in that the coreless motor and the motor are driven by a battery, and the battery is arranged on the shell.

The invention has the beneficial effects that:

the utility model discloses an automatic be stained with seal ink prevent stealing and cover seal passes through acceleration sensor and mechanical type sensor count and indent seal body after surpassing authorized count and solve the problem that the seal stole many covers, through will store up the position that appears in seal base mouth behind the rotatory 90 degrees of ink block, directly will add the china ink mouth and expose for the operator so that the filling is stained with this method of china ink, improved the convenience of being stained with the filling china ink. The utility model provides the high security of seal has indirectly reduced the economic loss of relevant enterprise or unit, has fine spreading value.

Drawings

Fig. 1 is a front view of a stamp lock state.

FIG. 2 is a front view of the stamp in an inked state.

Fig. 3 is a front view of the stamp unlocked state.

FIG. 4 is a front view of the stamp in its normal state when it is pressed down.

FIG. 5 is a schematic view showing an illegal state of the stamp.

Fig. 6 is a top view of the stamp.

Fig. 7 is a bottom view of the stamp.

Fig. 8 is an X, Y axis labeled diagram.

Fig. 9 is a flow chart of acceleration sensor count determination.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, the automatic ink-staining anti-pilferage stamp of the present embodiment mainly includes a base 1, a housing 2, a stamp plate 3, an inkpad plate 4, two coreless motors 5, a probe 6, four limit lugs 7, a lead screw nut assembly 8, four straight rods 9, a proximity sensor 10, a motor 11, a point contact 12, four connecting rods 13, a circuit board 14, a battery 15, four springs 16, four spring bottom holders 17, an inkpad connecting rod 18 and an ink adding hole 19. The main structure of the stamp is a stamp base 1 and a housing 2. Four straight rods 9 are fixedly connected on the shell 2, the straight rods 9 are sleeved with springs 16 and then are enabled to penetrate through four limiting lugs 7 of the stamp base 1 to be locked, one ends of the springs 16 are pressed on the spring bottom fixing devices 17, and the other ends of the springs are pressed on one sides of the limiting lugs 7. The stamp base 1 and the housing 2 are thus combined, and when the housing 2 is pressed downward, the spring 16 is compressed, and when the applied force is removed, the housing 2 will spring up and return to its original shape by the force of the compression of the spring 16. The shell 2 fixes the motor 11 through four connecting rods 13, one end of the screw-nut component 8 is connected with the motor 11, the other end of the screw-nut component 8 is connected with the seal plate 3, and the motor 11 controls the extension of the seal plate 3 by controlling the extension of the screw-nut component 8. Two coreless motors 5 are mounted on the stamp base 1, output shafts of the two coreless motors are connected with the inkpad plate 4 through the inkpad plate connecting rod 18, and the function of controlling the motion of the inkpad plate 4 by the coreless motors 5 can be realized through the connecting mode. A proximity sensor 10 is provided below the stamp base 1, by which it is determined whether the stamp pad 4 is lowered, to determine the next operation of the stamp. In this state, there is a 5mm gap between the stamp plate 3 and the ink pad 4. An STM32 controller, a wireless transmission module and an acceleration sensor are mounted on the circuit board 14. The circuit board 14 is powered by the battery 15, can control the rotation of the motor 11 and the hollow cup motor 5, can collect the data of the acceleration sensor and the proximity sensor 10, and can end commands, send data and alarm through the wireless transmission module.

As shown in fig. 8, which is a reference drawing of axis X, Y, this embodiment provides that the center of the stamp is directed toward the operator, toward the proximity sensor on the stamp base, and toward the ground.

As shown in fig. 2, the process of inking the stamp each time is as follows: the motor 11 drive screw-nut subassembly 8 in the seal and then drive seal board 3 and stretch 5mm and just contact seal mud board 4 to the purpose of being stained with china ink has been realized.

Referring to FIG. 3, when the user authorizes the seal to be inked or the number of imprintable times, the seal is unlocked. During unlocking, the seal firstly executes the process of inking the seal, namely, the motor 11 in the seal drives the lead screw nut component 8 to drive the seal plate 3 to extend out for 5mm and just contact the mud plate 4. Once the ink is stained, the hollow cup motor 5 immediately drives the stamp pad 4 to rotate, and when the stamp pad rotates 90 degrees, namely the stamp pad is close to the proximity sensor 10, the unlocking of the stamp is finished. After the unlocking is finished, the inkpad plate 4 is close to the proximity sensor 10 and is also perpendicular to the stamp plate 3, the ink adding hole of the inkpad plate is exposed to a user, and the user can conveniently add ink.

Referring to fig. 4, after the stamp is unlocked, the user can use the stamp for the authorized number of times. Four straight rods 9 of the stamp are fixedly connected on the shell 2, the straight rods 9 are sleeved with springs 16 and then are enabled to penetrate through four limiting lugs 7 of the stamp base 1 to be locked, one ends of the springs 16 are pressed on the spring bottom fixing devices 17, and the other ends of the springs are pressed on one sides of the limiting lugs 7. Spring 16 compresses when the user presses housing 2 downward when the user fully presses housing 2, seal plate 4 just beyond seal base 1, a position that allows the user to stamp without damaging the stamp face.

Referring to fig. 5, when the number of times of stamping authorized for the stamp is zero, the controller in the circuit board 14 controls the motor 11 to rotate the stamp plate 3 to retract by 5mm by rotating the lead screw nut assembly 8, and controls the coreless motor 5 to rotate the stamp plate 4 to rotate by 90 degrees to a position parallel to the stamp plate 3, respectively. Therefore, when the seal is illegally stamped, the seal plate 3 at the moment is retracted by nearly 5mm from the bottom of the seal base 1, and the seal cannot be stamped even if the seal is forcibly pressed. Meanwhile, when the acceleration sensor detects that downward acceleration still exists in the locking process, namely the seal is stolen and covered by multiple covers, the controller sends an alarm signal to a user through the wireless module.

As shown in fig. 9, the present embodiment introduces a counting judgment algorithm corresponding to the acceleration sensor to improve the counting accuracy, and the mechanical counting of the present invention uses the counting number of the mechanical counting only when the acceleration sensor counts and determines that the counting is illegal (i.e. the algorithm misjudges), and the mechanical counting counts again. In the embodiment, ax, ay and az are respectively defined as acceleration values in each axial direction, and the unit is mm; lx, ly and lz are respectively defined as displacement values of each axial direction, and the unit is mm; tx, ty are respectively defined as the duration of acceleration greater than 2mm and less than 5 mm; the pressing stroke of the stamp is defined to be 100 mm. The judgment algorithm for reasonably stamping the judgment seal of the acceleration sensor is as follows:

(1) the accelerations ax, ay, and az are read X, Y, Z from the axial direction of the shaft, respectively, after acceleration and initialization.

(2) If the absolute value | ax | of the read X-axis acceleration value is smaller than 2mm/s and the absolute value | ay | of the read Y-axis acceleration value is also smaller than 2mm/s, the read Z-axis acceleration value ax is always larger than 2mm/s and the displacement lz is larger than 100mm, and the absolute values | lx |, | ly |, of the displacements of the X axis and the Y axis are both smaller than 50mm in the process, the accelerometer count is increased by 1;

(3) if the absolute value | ax | of the read X-axis acceleration value is less than 2mm/s, the absolute value | ay | of the read Y-axis acceleration value is also less than 2mm/s, and the read Z-axis acceleration value ax is less than or equal to 2mm/s, determining that the time is illegal;

(4) if the absolute values | ax | and | ay | of the acceleration values of one or both of the read X or Y axes are greater than or equal to 2mm/s but less than 5mm/s and the time of each occurrence is less than 2s, the accelerometer count is increased by 1 when the read Z-axis acceleration value ax is always greater than 2mm/s and the displacement lz is greater than 100mm and the absolute values | lx |, | ly | of the displacements of the X and Y axes are less than 50mm in the process;

(5) if the absolute values | ax | and | ay | of the acceleration values of one or both of the read X-axis and Y-axis are greater than or equal to 2mm/s but less than 5mm/s and the time of each existence is less than 2s, but the read acceleration value ax of the Z-axis is less than or equal to 2mm/s, the judgment is illegal at this time;

(6) if the absolute values | ax | and | ay | of the acceleration values of one or both of the read X-axis and Y-axis are more than or equal to 2mm/s and less than 5mm/s, but the time when one or two axes appear at the same time is more than or equal to 2s, determining that the time is illegal;

(7) in the single counting process, once the displacement | lx |, | ly | of one of the X or Y axes or the displacement | lx | and | ly | of the two axes simultaneously appear, the illegal time is judged when the displacement | lx | and | ly | are more than or equal to 50 mm.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an automatic be stained with seal ink prevent stealing and seal, its characterized in that includes base, casing, circuit board, seal board, mud board, elevator motor, coreless motor and screw-nut subassembly, the casing sets up on the base with liftable, circuit board, elevator motor set up in the casing, and elevator motor's output shaft passes through the screw-nut subassembly and is connected with the seal board, the coreless motor sets up in the upper end of base, the output shaft of mud board and coreless motor is connected.

2. The automatic inking pilfer proof stamp according to claim 1, wherein the inner wall of the housing is provided with a reset unit, the base is provided with a limit lug, the reset unit comprises a straight bar and a spring, the straight bar is inserted into the top end of the housing in parallel with the side wall of the housing and is penetrated into the limit lug, and the spring is sleeved on the straight bar.

3. The anti-pilferage stamp capable of automatically staining ink according to claim 1, wherein the circuit board comprises an STM32 controller, a wireless transmission module and an acceleration sensor, and the wireless transmission module and the acceleration sensor are respectively in communication connection with the STM32 controller.

4. The anti-pilferage stamp according to claim 3, wherein a proximity sensor is further disposed on the bottom of said base, said proximity sensor being communicatively coupled to an STM32 controller.

5. The anti-pilferage stamp of claim 1 further including a time counting unit, said time counting unit including: the probe and the point touch switch, the probe sets up on the base, the point touch switch sets up on the casing corresponding to the probe, point touch switch and circuit board communication connection.

6. The automatic inking tamper seal according to claim 1, wherein said motor is connected to the top end of the housing by four connecting rods.

7. The anti-pilferage stamp of claim 1, further comprising a pad plate connecting rod, wherein said hollow cup motors are two, and the output shafts of said two hollow cup motors are connected to the pad plate through the pad plate connecting rod.

8. The anti-pilferage stamp of claim 1, wherein said hollow cup motor and said motor are driven by a battery, said battery being disposed on said housing.