Novel letter pin covering machine

Abstract

The invention belongs to the field of pin covering equipment, and provides a novel letter pin covering machine which comprises a fixing frame, a plurality of transmission mechanisms distributed at equal intervals are horizontally arranged on the inner wall of the fixing frame, the same conveying belt is installed on the surfaces of the transmission mechanisms, and supporting plates are fixedly installed at the center positions of the inner walls of the two sides of the fixing frame. One ends of the two supporting plates are provided with the same base plate, the base plate is located below the center of the conveying belt, the surface of the base plate is attached to the bottom of an upper-layer conveying belt of the conveying belt, and the positions, close to the inner wall of the fixing frame, of the two sides of the outer wall of the top of one supporting plate are provided with a first light sensor and a second light receiver correspondingly. The stamping force is changed through the stamping mechanical arm, and the electric cylinder of the stamping mechanical arm drives the photosensitive stamp to move downwards to start stamping work, so that the stamped ink is clearer on the surface of a letter, and patterns with too heavy or too light ink cannot appear.

Description

Technical Field

[0001] The invention belongs to the field of cancellation equipment, in particular to a novel letter cancellation machine. Background Art

[0002] With the progress of science and culture and the advancement of technology, the level of automation in many fields of society has been greatly improved, but the degree of innovation in stamping methods is not great, especially in postal business outlets, which still use the traditional manual stamping method. Every time a new stamp is issued, the workload will increase sharply, the stamping work is intensive, and the quality must be guaranteed. Therefore, a new type of letter stamping machine is needed.

[0003] However, the existing canning device has some problems when in use. After the canning program of the canning device is set, it is difficult to adjust, resulting in the same canning method being used for different letters, and the canning force cannot be adjusted according to the conditions of paper and ink.

[0004] Therefore, those skilled in the art have proposed a new letter cancellation machine to solve the problems raised by the background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a novel letter cancellation machine to solve the problem that the cancellation program of the cancellation device in the prior art is difficult to adjust after setting and the stamping force cannot be adjusted according to the conditions of paper and ink.

[0006] New letter cancellation machine, including:

[0007] A fixed frame, a plurality of transmission mechanisms distributed equidistantly are horizontally arranged on the inner wall of the fixed frame, a same conveyor belt is installed on the surface of the transmission mechanism, support plates are fixedly installed at the center of the inner walls on both sides of the fixed frame, a same pad is installed at one end of the two support plates, the pad is located below the center of the conveyor belt, the surface of the pad is attached to the bottom of the upper transmission belt of the conveyor belt, a light sensor 1 and a light receiver 2 are respectively installed at the positions close to the inner wall of the fixed frame on both sides of the top outer wall of one of the support plates, and a light receiver 1 and a light sensor 2 are respectively installed at the positions close to the inner wall of the fixed frame on both sides of the top outer wall of the other support plate;

[0008] A driving mechanism, a mounting plate is fixed on an outer wall of one side of one end of the fixing frame, the driving mechanism is fixed on the surface of the mounting plate, and the driving mechanism is used to drive the transmission mechanism and the conveyor belt to rotate;

[0009] A material discharge plate, the material discharge plate is mounted on an outer wall of one side of one end of the fixing frame close to the mounting plate, one side of the material discharge plate is in contact with the surface of the conveyor belt, and baffles are installed on both sides of the top outer wall of the material discharge plate close to the center line of the conveyor belt, and one end of the bottom outer wall of the baffle is in contact with the surface of the conveyor belt;

[0010] A stamping mechanical arm, a mounting frame is fixed at the center of the top outer wall of the fixing frame, the stamping mechanical arm is arranged on one side of the top outer wall center of the mounting frame close to the discharge plate, and a controller is fixed on one side outer wall of the mounting frame.

[0011] Preferably, a main control board is arranged inside the controller, the main control board is a 51 single chip microcomputer, and an operation panel is installed on the surface of the controller.

[0012] Preferably, a discharge plate is installed at one end of the fixing frame away from the discharge plate, and one end of the discharge plate is attached to the tail end of the conveyor belt.

[0013] Preferably, the transmission mechanism includes two sleeves, and the two sleeves are respectively mounted on the inner walls on both sides of the fixed frame, and the same connecting shaft is rotatably plugged into the circumferential inner walls of the two sleeves, and the circumferential outer walls of the connecting shaft are sleeved with wheels near both ends, and the conveyor belt is sleeved on the outer wall of the wheel.

[0014] Preferably, a transmission wheel is sleeved on the circumferential outer wall of one of the connecting shafts close to the mounting plate, and the driving mechanism includes a stepper motor 1, which is fixed on an outer wall of one side of the mounting plate, a transmission shaft is fixed to one end of the output shaft of the stepper motor 1, a shaft fixing seat is sleeved on one end of the transmission shaft, a driving wheel is sleeved on the circumferential outer wall of the transmission shaft, and the same belt is sleeved on the outer walls of the driving wheel and the transmission wheel.

[0015] Preferably, the stamping robot arm includes a second stepper motor, which is fixed on the top outer wall of the mounting frame, a screw is fixed to the bottom end of the output shaft of the second stepper motor, a screw sleeve is screwed on the outer wall of the screw, connecting rods are fixed to the outer walls on both sides of the screw sleeve, a fixing seat is installed at one end of the two connecting rods, the fixing seat is located directly below the screw, an electric cylinder is installed on the bottom outer wall of the fixing seat, an infrared ranging sensor is installed on one side outer wall of the electric cylinder, a photosensitive seal is installed at the bottom end of the extension rod of the electric cylinder, and the photosensitive seal is located above the conveyor belt.

[0016] Preferably, the distance between the light sensor 1 and the light sensor 2 and the letter is measured by the formula:

[0017] 2Y=C·T (2Y is the round trip distance, C is the speed of light, and T is the time it takes to receive the reflected light).

[0018] Preferably, the formula for the infrared distance sensor to measure the distance between the letter and the photosensitive seal is:

[0019]

[0020] L is the measured distance, t2 is the signal receiving time of the infrared distance sensor, t1 is the signal transmitting time of the infrared distance sensor, T is the distance traveled by the speed of light in one second, and L1 is the distance between the infrared distance sensor and the photosensitive stamp.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a light sensor 1, a light sensor 2 and an infrared distance measuring sensor. The signals emitted by the light sensor 1 and the light sensor 2 are received by the light receiver 1 and the light receiver 2. When the letter reaches the position of the light sensor 1 and the light sensor 2 under the action of the conveyor belt, the letter has a blocking effect. When the light receiver 1 and the light receiver 2 cannot receive the light signal, the signal is transmitted to the controller. At the same time, the light sensor 1 and the light sensor 2 emit a light beam to the letter, which is then received after rebounding. Then, according to the known width of the light sensor 1 and the light sensor 2 from the conveyor belt, the width of the letter can be measured. Similarly, the thickness of the letter is measured by the infrared distance measuring sensor. Under the action of the conveyor belt, the parts pass through the stamping robot arm, light sensor 1 and light sensor 2 in turn. After the infrared distance sensor measures the thickness, the 51 single-chip microcomputer controls the movement program of the stamping robot arm according to the received signal, starts the stepper motor 2 to drive the screw to rotate, so that the screw sleeve rises or moves down, and the electric cylinder rises or moves down to the appropriate position, thereby changing the stamping force. After the light sensor 1 sends a signal, the height adjustment is stopped. Then, after the light sensor 2 sends a signal, the electric cylinder of the stamping robot arm drives the photosensitive seal to move down and start stamping, so that the ink after stamping is clearer on the surface of the letter, and there will be no pattern of too heavy or too light ink.

[0023] 2. The present invention is provided with a discharge plate and two baffles, so as to facilitate the screening of the sizes of letters when letters are first placed. Letters suitable for passing through the baffles are pushed toward the conveyor belt by staff between the discharge plate and the two baffles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0026] Figure 3 It is a schematic diagram of the drive mechanism, transmission mechanism and transmission wheel structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the stamping mechanical arm of the present invention;

[0028] Figure 5It is a structural schematic diagram of the optical sensor 1, the optical sensor 2, the optical receiver 1, the optical receiver 2, the support plate and the pad of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the fixing frame of the present invention.

[0030] In the figure:

[0031] 1. Fixing frame; 2. Driving mechanism; 3. Mounting plate; 4. Feeding plate; 5. Stop bar; 6. Conveyor belt; 7. Mounting frame; 8. Stamping robot arm; 9. Operation panel; 10. Feeding plate; 11. Controller; 12. Transmission mechanism; 13. Photo sensor 1; 14. Transmission wheel; 15. Support plate; 16. Pad; 17. Photo receiver 1; 18. Photo sensor 2; 19. Photo receiver 2;

[0032] 201, stepper motor 1; 202, transmission shaft; 203, driving wheel; 204, shaft fixing seat; 205, belt;

[0033] 801, stepper motor 2; 802, screw; 803, electric cylinder; 804, photosensitive stamp; 805, fixing seat; 806, connecting rod; 807, screw sleeve; 808, infrared distance sensor;

[0034] 1201, sleeve; 1202, connecting shaft; 1203, sleeve wheel. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] Reference Figure 1-Figure 6 The present invention provides a novel letter cancellation machine, comprising:

[0037] A fixed frame 1, on the inner wall of the fixed frame 1, a plurality of equally spaced transmission mechanisms 12 are horizontally arranged, a conveyor belt 6 is installed on the surface of the transmission mechanism 12, support plates 15 are fixedly installed at the center of the inner walls on both sides of the fixed frame 1, a same pad 16 is installed at one end of the two support plates 15, the pad 16 is located below the center of the conveyor belt 6, the surface of the pad 16 is attached to the bottom of the upper transmission belt of the conveyor belt 6, a light sensor 13 and a light receiver 2 19 are respectively installed at both sides of the top outer wall of one support plate 15 near the inner wall of the fixed frame 1, and a light receiver 1 17 and a light sensor 2 18 are respectively installed at both sides of the top outer wall of the other support plate 15 near the inner wall of the fixed frame 1;

[0038] A driving mechanism 2, a mounting plate 3 is fixed on an outer wall of one side of one end of the fixing frame 1, the driving mechanism 2 is fixed on the surface of the mounting plate 3, and the driving mechanism 2 is used to drive the transmission mechanism 12 and the conveyor belt 6 to rotate;

[0039] The unloading plate 4 is installed on the outer wall of one side of the fixing frame 1 close to the mounting plate 3, one side of the unloading plate 4 is in contact with the surface of the conveyor belt 6, and both sides of the top outer wall of the unloading plate 4 close to the center line of the conveyor belt 6 are installed with blocking bars 5, and one end of the bottom outer wall of the blocking bar 5 is in contact with the surface of the conveyor belt 6;

[0040] The stamping robot arm 8 is fixed with a mounting frame 7 at the center of the top outer wall of the fixing frame 1. The stamping robot arm 8 is arranged on one side of the top outer wall center of the mounting frame 7 close to the discharge plate 4. A controller 11 is fixed on one side outer wall of the mounting frame 7.

[0041] As can be seen from the above, when in use, the driving mechanism 2 is started to drive the transmission mechanism 12 to rotate. If a letter is suitable for passing through the baffle 5, the staff will push it to the conveyor belt 6 between the discharge plates 4 of the two baffles 5. The letter moves to the mounting frame 7 driven by the conveyor belt 6. After the stamping robot arm 8 detects the thickness of the letter, it adjusts its distance from the letter, and then stops adjusting after the light sensor 1 13 sends a signal. After the light sensor 2 18 sends a signal, the stamping robot arm 8 is started to perform the stamping work to press the ink on the surface of the letter.

[0042] Specifically, a main control board is disposed inside the controller 11 , and the main control board is a 51 single chip microcomputer. An operation panel 9 is installed on the surface of the controller 11 .

[0043] From the above, it can be seen that the running program of the device is set by the 51 single-chip microcomputer, thereby facilitating the stamping work.

[0044] Specifically, a discharge plate 10 is installed at one end of the fixing frame 1 away from the discharge plate 4 , and one end of the discharge plate 10 is attached to the rear end of the conveyor belt 6 .

[0045] As can be seen from the above, after the letter is stamped, it is driven by the conveyor belt 6 to move to the surface of the discharge plate 10.

[0046] Specifically, the transmission mechanism 12 includes two sleeves 1201, and the two sleeves 1201 are respectively installed on the inner walls on both sides of the fixed frame 1. The same connecting shaft 1202 is rotatably inserted on the circumferential inner walls of the two sleeves 1201. The circumferential outer walls of the connecting shaft 1202 are sleeved with sleeve wheels 1203 near both ends, and the conveyor belt 6 is sleeved on the outer wall of the sleeve wheel 1203.

[0047] As can be seen from the above, the driving mechanism 2 drives the connection shaft 1202 to rotate, and then drives the sleeve wheel 1203 and the conveyor belt 6 to rotate.

[0048] Specifically, a transmission wheel 14 is sleeved on the circumferential outer wall of a connecting shaft 1202 close to the mounting plate 3, and the driving mechanism 2 includes a stepper motor 201, which is fixed on the outer wall of one side of the mounting plate 3, and a transmission shaft 202 is fixed to one end of the output shaft of the stepper motor 201, and a shaft fixing seat 204 is sleeved on one end of the transmission shaft 202, and a driving wheel 203 is sleeved on the circumferential outer wall of the transmission shaft 202, and the same belt 205 is sleeved on the outer walls of the driving wheel 203 and the transmission wheel 14.

[0049] As can be seen from the above, starting the stepper motor 201 drives the transmission shaft 202 to rotate, which in turn drives the driving wheel 203 to rotate, and drives the transmission wheel 14 to rotate through the belt 205, which in turn drives the transmission mechanism 12 to rotate.

[0050] Specifically, the stamping robot arm 8 includes a stepper motor 801, which is fixed on the top outer wall of the mounting frame 7, a screw 802 is fixed to the bottom end of the output shaft of the stepper motor 801, a screw sleeve 807 is screwed on the outer wall of the screw 802, connecting rods 806 are fixed to the outer walls on both sides of the screw sleeve 807, a fixing seat 805 is installed at one end of the two connecting rods 806, the fixing seat 805 is located directly below the screw 802, an electric cylinder 803 is installed on the bottom outer wall of the fixing seat 805, an infrared ranging sensor 808 is installed on the outer wall of one side of the electric cylinder 803, a photosensitive seal 804 is installed at the bottom end of the extension rod of the electric cylinder 803, and the photosensitive seal 804 is located above the conveyor belt 6.

[0051] As can be seen from the above, after the infrared distance measuring sensor 808 measures the thickness of the letter, the force of the stamping is adjusted according to the thickness of the letter. If the letter is too thick, it is close to the photosensitive seal 804, so the stepper motor 801 is started to drive the screw 802 to rotate, so that the screw sleeve 807 moves up, thereby lengthening the distance between the photosensitive seal 804 and the letter, and then the electric cylinder 803 is started to drive the photosensitive seal 804 to move down, pressing the ink on the surface of the letter, thereby completing the letter stamping work. If the letter is thin, the photosensitive seal 804 is close to the letter, which is convenient for the stamping work.

[0052] Specifically, the distance between the light sensor 1 13 and the light sensor 2 18 and the letter is measured by the formula:

[0053] 2Y=C·T (2Y is the round trip distance, C is the speed of light, and T is the time it takes to receive the reflected light).

[0054] As can be seen from the above, the distance between the letter and itself is measured by the optical sensor 1 13 and the optical sensor 2 18, so as to measure the width of the letter according to known conditions, so that the stamping robot arm 8 can know the size of the letter and perform the stamping work conveniently.

[0055] Specifically, the formula for the infrared distance sensor 808 to measure the distance between the letter and the photosensitive seal 804 is:

[0056]

[0057] L is the measured distance, t2 is the signal receiving time of the infrared distance sensor 808, t1 is the signal transmitting time of the infrared distance sensor 808, T is the distance traveled in one second by the speed of light, and L1 is the distance between the infrared distance sensor 808 and the photosensitive seal 804.

[0058] As can be seen from the above, after the infrared distance measuring sensor 808 measures the thickness of the letter, the force of the canning is adjusted according to the thickness of the letter to facilitate the canning work.

[0059] When in use, the driving mechanism 2 is started to drive the transmission mechanism 12 to rotate. If a letter is suitable for passing through the baffle 5, the staff will push it to the conveyor belt 6 between the discharge plates 4 of the two baffles 5. The letter moves to the mounting frame 7 driven by the conveyor belt 6. After detecting the thickness of the letter, the stamping robot arm 8 adjusts its distance from the letter, and then stops adjusting after the light sensor 1 13 sends a signal. After the light sensor 2 18 sends a signal, the stamping robot arm 8 is started to perform the stamping work to press the ink on the surface of the letter.

[0060] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A new letter cancellation machine, characterized in that: include: A fixed frame (1), wherein a plurality of equally spaced transmission mechanisms (12) are horizontally arranged on the inner wall of the fixed frame (1), a conveyor belt (6) is installed on the surface of the transmission mechanism (12), support plates (15) are fixedly installed at the center of the inner walls on both sides of the fixed frame (1), a same pad (16) is installed at one end of the two support plates (15), the pad (16) is located below the center of the conveyor belt (6), and the surface of the pad (16) is attached to the bottom of the upper transmission belt of the conveyor belt (6), a light sensor 1 (13) and a light receiver 2 (19) are respectively installed at positions close to the inner wall of the fixed frame (1) on both sides of the top outer wall of one of the support plates (15), and a light receiver 1 (17) and a light sensor 2 (18) are respectively installed at positions close to the inner wall of the fixed frame (1) on both sides of the top outer wall of the other support plate (15); A driving mechanism (2), a mounting plate (3) being fixed on an outer wall of one side of one end of the fixing frame (1), the driving mechanism (2) being fixed on a surface of the mounting plate (3), and the driving mechanism (2) being used to drive the transmission mechanism (12) and the conveyor belt (6) to rotate; A material discharge plate (4), the material discharge plate (4) being mounted on an outer wall of one end of the fixing frame (1) close to the mounting plate (3), one side of the material discharge plate (4) being in contact with the surface of the conveyor belt (6), and baffles (5) being mounted on both sides of the top outer wall of the material discharge plate (4) close to the center line of the conveyor belt (6), and one end of the bottom outer wall of the baffle (5) being in contact with the surface of the conveyor belt (6); A stamping mechanical arm (8), a mounting frame (7) is fixed at the center of the top outer wall of the fixing frame (1), the stamping mechanical arm (8) is arranged on one side of the center of the top outer wall of the mounting frame (7) close to the discharge plate (4), and a controller (11) is fixed on one side outer wall of the mounting frame (7).

2. The novel letter cancellation machine according to claim 1, characterized in that: The controller (11) is provided with a main control board inside, the main control board is a 51 single chip microcomputer, and an operation panel (9) is installed on the surface of the controller (11).

3. The new letter cancellation machine according to claim 1, characterized in that: A discharge plate (10) is installed at one end of the fixed frame (1) away from the discharge plate (4), and one end of the discharge plate (10) is attached to the tail end of the conveyor belt (6).

4. The new letter cancellation machine according to claim 1, characterized in that: The transmission mechanism (12) comprises two sleeves (1201), the two sleeves (1201) are respectively mounted on the inner walls on both sides of the fixing frame (1), a same connecting shaft (1202) is rotatably plugged into the circumferential inner walls of the two sleeves (1201), sleeve wheels (1203) are sleeved on the circumferential outer walls of the connecting shaft (1202) near both ends, and the conveyor belt (6) is sleeved on the outer wall of the sleeve wheel (1203).

5. The novel letter cancellation machine according to claim 4 is characterized in that: A transmission wheel (14) is sleeved on the circumferential outer wall of a connecting shaft (1202) close to the mounting plate (3); the driving mechanism (2) comprises a stepper motor (201); the stepper motor (201) is fixed on the outer wall of one side of the mounting plate (3); a transmission shaft (202) is fixed to one end of the output shaft of the stepper motor (201); a shaft fixing seat (204) is sleeved on one end of the transmission shaft (202); a driving wheel (203) is sleeved on the circumferential outer wall of the transmission shaft (202); and the outer walls of the driving wheel (203) and the transmission wheel (14) are sleeved with the same belt (205).

6. The novel letter cancellation machine according to claim 1, characterized in that: The stamping mechanical arm (8) comprises a second stepping motor (801), the second stepping motor (801) being fixed on the top outer wall of the mounting frame (7), a screw rod (802) being fixed at the bottom end of the output shaft of the second stepping motor (801), a screw sleeve (807) being screwed on the outer wall of the screw rod (802), connecting rods (806) being fixed on the outer walls of both sides of the screw sleeve (807), and one end of the two connecting rods (806) being mounted A fixed seat (805) is provided, the fixed seat (805) is located directly below the screw rod (802), an electric cylinder (803) is installed on the bottom outer wall of the fixed seat (805), an infrared distance measuring sensor (808) is installed on one side outer wall of the electric cylinder (803), a photosensitive seal (804) is installed at the bottom end of the extension rod of the electric cylinder (803), and the photosensitive seal (804) is located above the conveyor belt (6).

7. The novel letter cancellation machine according to claim 1, characterized in that: The distance between the letter and the light sensor 1 (13) and the light sensor 2 (18) is measured by the formula: 2Y=C·T (2Y is the round trip distance, C is the speed of light, and T is the time it takes to receive the reflected light).

8. The novel letter cancellation machine according to claim 6, characterized in that: The formula for the infrared distance sensor (808) to measure the distance between the letter and the photosensitive seal (804) is: L is the measured distance, t2 is the signal receiving time of the infrared distance sensor (808), t1 is the signal transmitting time of the infrared distance sensor (808), T is the distance traveled in one second at the speed of light, and L1 is the distance between the infrared distance sensor (808) and the photosensitive stamp (804).

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