Impact plate scale calibration device
By designing a punching scale calibration device including a bracket, a support plate, a slide rod and a lifting mechanism, the problems of large calibration errors and small detection pressure in the prior art are solved, and a higher calibration accuracy is achieved.
Patent Information
- Application Number
- CN202411751527.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-04-11
AI Technical Summary
In the existing calibration methods of punching scales, quantitative feeding calibration has problems such as large errors, high detection particles consumption, and low subsequent detection pressure, which affects the calibration accuracy.
A punching scale calibration device is designed, including a bracket, a first support plate, a second support plate, a slide rod, a discharge sleeve, a barrel, a discharge sleeve and a lifting mechanism. The lifting mechanism drives the material barrel upward, combining the sliding fit of the discharge sleeve and the discharge sleeve to prevent detection of particles from leaking and ensure calibration accuracy.
Effectively prevent detection particles from leaking, ensure calibration accuracy, reduce errors in detection results, and improve the accuracy of subsequent hedge plate calibration.
Smart Images
Figure CN119803623A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of calibration, in particular to a punch plate scale calibration device. Background Art
[0002] Impact plate scale (also called impact plate flowmeter) is a device specially used to measure the flow rate of powdery and granular materials with strong fluidity. Its main functional features include automatic metering and batching, closed-loop control system, compact and dust-proof structure, no transmission power system, strong adaptability, high-precision measurement, easy installation and maintenance, good sealing performance, adjustable sensitivity and a wide range of applications.
[0003] When the measurement result of the punch scale deviates too much from the actual weight, it is likely to affect the quality control of the product. For example, in the process of weighing raw materials, if the accuracy of the scale cannot be guaranteed, the products produced may not meet the standards, affecting the product quality. Therefore, it is necessary to frequently test and calibrate the punch scale during the production process. Common detection and calibration methods include quantitative feeding calibration.
[0004] Quantitative feeding calibration refers to putting an appropriate amount of test particles on the punch plate scale, observing the measured value of the punch plate scale and comparing it with the actual value. If the error is too large, the punch plate scale is calibrated; quantitative feeding calibration often uses barrel feeding, and controls the amount of feeding by controlling the opening and closing time of the barrel, which facilitates comparison with the measured value; since errors may occur in one test, multiple tests are often required to ensure accuracy, but since each test consumes the test particles in the barrel, the pressure of subsequent tests becomes smaller, which affects the impact force of subsequent test particles on the punch plate scale, resulting in a certain error in the test results. Summary of the invention
[0005] The object of the present invention is to provide a punch plate scale calibration device to solve the problems raised in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solutions: A punch plate scale calibration device, comprising a bracket; and a first support plate fixedly mounted on the bracket; A second support plate is provided on the first support plate; a sliding rod slidably connected to the bracket is fixedly mounted on the second support plate; A discharge sleeve is fixedly mounted on the bracket; a material barrel is fixedly mounted on the second support plate; a discharge sleeve is arranged on the material barrel; and the discharge sleeve is slidably engaged with the discharge sleeve; The bracket is provided with an opening and closing mechanism and a lifting mechanism that cooperate with each other; the opening and closing mechanism includes multiple groups of baffles rotatably installed on the discharge sleeve; the multiple groups of baffles can rotate away from or close to each other to open or close the discharge sleeve; and the lifting mechanism can drive the second support plate to rise after the discharge sleeve is closed, so as to drive the barrel to rise.
[0007] As a further solution of the present invention: a motor is fixedly installed on the bracket, a screw column is fixedly installed on the output end of the motor, and an internally threaded slider is threaded on the screw column; the opening and closing mechanism also includes a first rotating shaft rotatably installed on the bracket; a plurality of first matching grooves are provided on the first rotating shaft; a first slider is slidably provided on the first rotating shaft; the first slider is fixedly connected to the internally threaded slider, and a first protruding column slidably engaged with the first matching groove is fixedly installed on the first slider; a first gear is fixedly installed on the first rotating shaft; a second gear meshing with the first gear is rotatably installed on the discharging sleeve; an inclined slide groove is provided on the second gear; a protruding column slidably engaged with the inclined slide groove is fixedly installed on the baffle.
[0008] As a further scheme of the present invention: the first matching groove includes a first inclined groove, a first vertical groove, a second inclined groove and a second vertical groove; wherein the inclination directions of the first inclined groove and the second inclined groove are opposite; one end of the first inclined groove is connected to one end of the first vertical groove, and the other end of the first vertical groove is connected to one end of the second inclined groove; the other end of the second inclined groove is connected to one end of the second vertical groove, and the other end of the second inclined groove is connected to one end of the first inclined groove in another group of the first matching grooves.
[0009] As a further solution of the present invention: the lifting mechanism includes a second rotating shaft rotatably mounted on the bracket, a second sliding block fixedly connected to the internal threaded sliding block is slidably arranged on the second rotating shaft, a plurality of second matching grooves are provided on the second rotating shaft, a second protruding column slidably engaged with the second matching groove is fixedly mounted on the second sliding block; a pinion is fixedly mounted on the second rotating shaft; a third rotating shaft is rotatably mounted on the first supporting plate; a large gear meshing with the pinion is fixedly mounted on the third rotating shaft; a second spiral groove is provided on the third rotating shaft; a fixed sleeve connected to the third rotating shaft is fixedly mounted on the second supporting plate; a third protruding column slidably engaged with the second spiral groove is fixedly mounted on the fixed sleeve.
[0010] As a further solution of the present invention: the second matching includes a third vertical groove and a first spiral groove; one end of the third vertical groove is connected to one end of the first spiral groove, and the other end of the first spiral groove is connected to one end of the third vertical groove in another group of the second matching grooves.
[0011] As a further solution of the present invention: when the first protruding column slides in the first inclined groove, the first vertical groove and the second inclined groove, the second protruding column will slide in the third vertical groove; when the first protruding column slides in the second vertical groove, the second protruding column will slide in the first spiral groove.
[0012] As a further solution of the present invention: a buffer cone barrel is fixedly installed on the barrel, and the end of the buffer cone barrel with a smaller diameter is fixedly connected to the discharge sleeve.
[0013] As a further solution of the present invention: a plurality of sets of universal wheels are fixedly mounted on the bottom of the bracket.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: after one detection (after the discharge sleeve is closed), the second support plate is driven to rise by the lifting mechanism to drive the material barrel to rise. During this process, the unloading sleeve and the discharge sleeve slide in cooperation, which can effectively prevent the detection particles from leaking from the connection and ensure the accuracy of the detection calibration; thereby increasing the height of the detection particles in the material barrel to be basically the same as the height of the previous detection, thereby minimizing the error of the detection result, thereby improving the accuracy of the subsequent hedge plate scale calibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The present invention is a structural schematic diagram of an embodiment of a punch plate scale calibration device.
[0016] Figure 2 A schematic structural diagram of an embodiment of a punch plate scale calibration device from another perspective.
[0017] Figure 3 This is a schematic structural diagram of a first rotating shaft and a second rotating shaft in an embodiment of a punch plate scale calibration device.
[0018] Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle.
[0019] Figure 5 for Figure 3 Schematic diagram of the structure at B in the figure.
[0020] Figure 6 This is a schematic structural diagram of a first slider and a second slider in an embodiment of a punch plate scale calibration device.
[0021] Figure 7This is a schematic structural diagram of the opening and closing mechanism in one embodiment of a punch plate scale calibration device.
[0022] Figure 8 This is a schematic diagram of the structure of the lifting mechanism in one embodiment of the punch plate scale calibration device.
[0023] Fig. 9 This is a schematic structural diagram of a fixed sleeve and a third rotating shaft in an embodiment of a punch plate scale calibration device.
[0024] In the figure: 1, bracket; 101, first support plate; 102, second support plate; 103, slide bar; 2. Discharging sleeve; 3. Material barrel; 301. Buffer cone barrel; 302. Discharge sleeve; 4. Motor; 5. Screw column; 6. Internal thread slider; 7. First sliding block; 701. First protruding column; 8. First rotating shaft; 801. First inclined slot; 802. First vertical slot; 803. Second inclined slot; 804. Second vertical slot; 9. First gear; 10. second gear; 1001. inclined slide; 11. baffle; 1101. raised column; 12. second sliding block; 1201. second protruding column; 13. second rotating shaft; 1301. third vertical groove; 1302. first spiral groove; 14. Pinion; 15. Big gear; 16. third rotating shaft; 1601. second spiral groove; 17. Fixed sleeve; 1701. Third protruding column; 18. Universal wheel. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.
[0027] See also Figure 1 to Figure 9 In an embodiment of the present invention, a punch plate scale calibration device includes a bracket 1; and a first support plate 101 fixedly mounted on the bracket 1; The first support plate 101 is provided with a second support plate 102; the second support plate 102 is fixedly mounted with a slide bar 103 which is slidably connected to the bracket 1; A discharge sleeve 2 is fixedly mounted on the bracket 1; a material barrel 3 is fixedly mounted on the second support plate 102; a discharge sleeve 302 is arranged on the material barrel 3; and the discharge sleeve 302 is slidably engaged with the discharge sleeve 2; The bracket 1 is provided with an opening and closing mechanism and a lifting mechanism that cooperate with each other; the opening and closing mechanism includes multiple groups of baffles 11 rotatably mounted on the discharge sleeve 2; the multiple groups of baffles 11 can rotate away from or close to each other to open or close the discharge sleeve 2; and the lifting mechanism can drive the second support plate 102 to rise after the discharge sleeve 2 is closed, so as to drive the barrel 3 to rise.
[0028] Taking the embodiment combining all the features described in the present application as an example, when in use, the bracket 1 is moved to align the discharge sleeve 2 with the feed port of the punch scale; a certain amount of detection particles is filled into the barrel 3.
[0029] Start the device, and the opening and closing mechanism will drive the baffle 11 to rotate so that the baffles 11 move away from each other, thereby turning on the discharge sleeve 2, so that the test particles can smoothly fall onto the punch plate scale; the opening and closing mechanism will keep the discharge sleeve 2 in a conducting state to prevent too little test particles from falling into the punch plate scale, resulting in errors in the test results, thereby affecting the subsequent calibration of the punch plate scale.
[0030] Afterwards, the opening and closing mechanism will drive the baffle 11 to rotate in the opposite direction so that the baffles 11 are close to each other to close the discharge sleeve 2; the accuracy of the punch scale is judged by observing the changes in the measurement value of the punch scale; since errors may occur in one test, multiple tests are required to reduce the errors in the test results, thereby improving the accuracy of the calibration.
[0031] After one test, the height of the test particles in the barrel 3 will decrease, making the speed of the subsequent test particles falling slightly lower than the speed of the previous test, resulting in deviations between the results of multiple tests. Therefore, after one test (after the discharge sleeve 2 is closed), the lifting mechanism will drive the second support plate 102 to rise, so as to drive the barrel 3 to rise. During this process, the unloading sleeve 302 and the discharge sleeve 2 slide together, which can effectively prevent the test particles from leaking out of the connection and ensure the accuracy of the test calibration; thereby increasing the height of the test particles in the barrel 3 to be basically the same as the height of the previous test, minimizing the error of the test results, and improving the accuracy of the subsequent hedge plate calibration.
[0032] In another embodiment of the present invention, a motor 4 is fixedly mounted on the bracket 1, a screw column 5 is fixedly mounted on the output end of the motor 4, and an internally threaded slider 6 is threadedly connected to the screw column 5; the opening and closing mechanism also includes a first rotating shaft 8 rotatably mounted on the bracket 1; a plurality of first matching grooves are provided on the first rotating shaft 8; a first slider 7 is slidably arranged on the first rotating shaft 8; the first slider 7 is fixedly connected to the internally threaded slider 6, and a first protruding column 701 slidably engaged with the first matching groove is fixedly mounted on the first slider 7; a first gear 9 is fixedly mounted on the first rotating shaft 8; a second gear 10 meshing with the first gear 9 is rotatably mounted on the discharging sleeve 2; an inclined slide groove 1001 is provided on the second gear 10; a protruding column 1101 slidably engaged with the inclined slide groove 1001 is fixedly mounted on the baffle 11.
[0033] In another embodiment of the present invention, the first matching groove includes a first inclined groove 801, a first vertical groove 802, a second inclined groove 803 and a second vertical groove 804; wherein the inclination directions of the first inclined groove 801 and the second inclined groove 803 are opposite; one end of the first inclined groove 801 is connected to one end of the first vertical groove 802, and the other end of the first vertical groove 802 is connected to one end of the second inclined groove 803; the other end of the second inclined groove 803 is connected to one end of the second vertical groove 804, and the other end of the second inclined groove 803 is connected to one end of the first inclined groove 801 in another group of the first matching grooves.
[0034] Taking the embodiment of the combination of all the features recorded in this application as an example, when in use, when the motor 4 rotates, it will drive the screw column 5 to rotate, and through the threaded engagement, drive the internal thread slider 6 to move upward along the length direction of the screw column 5. When the internal thread slider 6 moves, it will drive the first slider 7 to move synchronously, thereby driving the first protruding column 701 to slide in the first engagement groove.
[0035] The first protruding column 701 will slide in the first inclined groove 801 toward the first vertical groove 802. Under the mutual squeezing action of the first inclined groove 801 and the first protruding column 701, the first rotating shaft 8 will rotate, thereby driving the first gear 9 to rotate, and driving the second gear 10 to rotate through the meshing action, thereby driving the inclined slide groove 1001 to rotate synchronously; at this time, the protruding column 1101 will slide from one end to the other end in the inclined slide groove 1001, and during the sliding process, it will drive the baffle 11 to rotate, so that the baffles 11 that were originally in conflict with each other rotate away, thereby conducting the discharge sleeve 2, so that the detected particles can fall onto the punch scale.
[0036] Afterwards, the first protruding column 701 will slide in the first vertical groove 802 , and at this time, the first rotating shaft 8 does not rotate, thereby keeping the conducting state of the discharge sleeve 2 unchanged.
[0037] Afterwards, the first protruding column 701 will slide in the second inclined groove 803. Under the mutual squeezing action of the second inclined groove 803 and the first protruding column 701, the first rotating shaft 8 will rotate, and the rotation direction is opposite to that before, thereby driving the first gear 9 to rotate in the opposite direction, thereby driving the baffle 11 to grip in the opposite direction to close the discharge sleeve 2.
[0038] Finally, the first protruding column 701 will slide in the second vertical groove 804 to keep the closed loop state of the discharge sleeve 2 unchanged. When the first protruding column 701 slides into the next set of first matching grooves, the device performs the next detection.
[0039] The accuracy of the punch scale is determined by observing the changes in the measured values of the punch scale; since errors may occur in one test, multiple tests are required to reduce the errors in the test results, thereby improving the accuracy of the calibration.
[0040] After one test, the height of the test particles in the barrel 3 will decrease, making the speed of the subsequent test particles falling slightly lower than the speed of the previous test, resulting in deviations between the results of multiple tests. Therefore, after one test (after the discharge sleeve 2 is closed), the lifting mechanism will drive the second support plate 102 to rise, thereby driving the barrel 3 to rise, thereby increasing the height of the test particles in the barrel 3 to be basically the same as the height of the previous test, minimizing the error of the test results, thereby improving the accuracy of the subsequent hedge plate scale calibration.
[0041] In another embodiment of the present invention, the lifting mechanism includes a second rotating shaft 13 rotatably mounted on the bracket 1, a second slider 12 fixedly connected to the internal thread slider 6 is slidably arranged on the second rotating shaft 13, a plurality of second matching grooves are provided on the second rotating shaft 13, a second protruding column 1201 slidably engaged with the second matching groove is fixedly mounted on the second slider 12; a pinion 14 is fixedly mounted on the second rotating shaft 13; a third rotating shaft 16 is rotatably mounted on the first support plate 101; a large gear 15 meshing with the pinion 14 is fixedly mounted on the third rotating shaft 16; a second spiral groove 1601 is provided on the third rotating shaft 16; a fixed sleeve 17 connected to the third rotating shaft 16 is fixedly mounted on the second support plate 102; a third protruding column 1701 slidably engaged with the second spiral groove 1601 is fixedly mounted on the fixed sleeve 17.
[0042] In another embodiment of the present invention, the second matching includes a third vertical groove 1301 and a first spiral groove 1302; one end of the third vertical groove 1301 is connected to one end of the first spiral groove 1302, and the other end of the first spiral groove 1302 is connected to one end of the third vertical groove 1301 in another group of the second matching grooves.
[0043] Taking the embodiment combining all the features described in the present application as an example, when the internal thread slider 6 moves, it will drive the second slider 12 to move synchronously, so as to drive the second protruding column 1201 to slide in the second matching groove.
[0044] When the second protruding column 1201 slides in the third vertical groove 1301, the second rotating shaft 13 remains stationary; when the second protruding column 1201 slides in the first spiral groove 1302, the second rotating shaft 13 will rotate through the squeezing action of the first spiral groove 1302 and the second protruding column 1201, thereby driving the small gear 14 to rotate, and driving the large gear 15 to rotate through the meshing action, thereby driving the third rotating shaft 16 to rotate.
[0045] When the third rotating shaft 16 rotates, it will drive the second spiral groove 1601 to rotate synchronously, so that the third protruding column 1701 slides in the second spiral groove 1601, thereby driving the fixed sleeve 17 to move along the length direction of the third rotating shaft 16, thereby driving the second support plate 102 to rise, thereby driving the bucket 3 to rise.
[0046] After one test, the height of the test particles in the barrel 3 will decrease, making the speed of the subsequent test particles falling slightly lower than the speed of the previous test, resulting in deviations between the results of multiple tests. Therefore, after one test (after the discharge sleeve 2 is closed), the lifting mechanism will drive the second support plate 102 to rise, thereby driving the barrel 3 to rise, thereby increasing the height of the test particles in the barrel 3 to be basically the same as the height of the previous test, minimizing the error of the test results, thereby improving the accuracy of the subsequent hedge plate scale calibration.
[0047] In another embodiment of the present invention, when the first protruding column 701 slides in the first inclined groove 801, the first vertical groove 802 and the second inclined groove 803, the second protruding column 1201 will slide in the third vertical groove 1301; when the first protruding column 701 slides in the second vertical groove 804, the second protruding column 1201 will slide in the first spiral groove 1302.
[0048] Taking the embodiment combining all the features described in the present application as an example, when in use, when the first protruding column 701 slides in the first inclined groove 801, the first vertical groove 802 and the second inclined groove 803, the second protruding column 1201 slides in the third vertical groove 1301. During this process, the height of the barrel 3 remains unchanged, the discharge sleeve 2 will be turned on and maintained for a period of time, and then the discharge sleeve 2 will be closed to complete a detection.
[0049] When the first protruding column 701 slides in the second vertical groove 804, the second protruding column 1201 slides in the first spiral groove 1302. During this process, the discharge sleeve 2 is in a closed state, and the height of the barrel 3 continues to increase, so that the falling height of the detected particles is basically the same during each detection, thereby reducing the error of the detection result and improving the accuracy of the calibration.
[0050] In another embodiment of the present invention, a buffer cone barrel 301 is fixedly installed on the material barrel 3 , and an end of the buffer cone barrel 301 with a smaller diameter is fixedly connected to the discharge sleeve 302 .
[0051] Taking the embodiment combining all the features recorded in the present application as an example, when in use, the buffer cone barrel 301 can buffer the falling speed of the detection particles in the barrel 3 to prevent the detection particles from falling too much when the discharge sleeve 2 is opened, resulting in the need for reloading for subsequent detection, thereby improving the detection efficiency.
[0052] In another embodiment of the present invention, a plurality of sets of universal wheels 18 are fixedly mounted on the bottom of the bracket 1 .
[0053] Taking the embodiment combining all the features described in the present application as an example, when in use, the universal wheel 18 can facilitate the movement of the device, thereby improving the convenience of the detection device and thus improving the efficiency of detection and calibration.
[0054] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0055] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A punch plate scale calibration device, comprising a bracket (1); and a first support plate (101) fixedly mounted on the bracket (1); It is characterized in that A second support plate (102) is arranged on the first support plate (101); a sliding rod (103) is fixedly mounted on the second support plate (102) and is slidably connected to the bracket (1); A discharge sleeve (2) is fixedly mounted on the bracket (1); a material barrel (3) is fixedly mounted on the second support plate (102); a discharge sleeve (302) is provided on the material barrel (3); and the discharge sleeve (302) is slidably engaged with the discharge sleeve (2); The bracket (1) is provided with an opening and closing mechanism and a lifting mechanism that cooperate with each other; the opening and closing mechanism includes a plurality of baffles (11) rotatably mounted on the discharge sleeve (2); the plurality of baffles (11) can rotate away from or toward each other to open or close the discharge sleeve (2); and the lifting mechanism can drive the second support plate (102) to rise after the discharge sleeve (2) is closed, thereby driving the material barrel (3) to rise.
2. A punch plate scale calibration device according to claim 1, characterized in that: A motor (4) is fixedly mounted on the bracket (1), a screw column (5) is fixedly mounted on the output end of the motor (4), and an internally threaded slider (6) is threadedly connected to the screw column (5); the opening and closing mechanism also includes a first rotating shaft (8) rotatably mounted on the bracket (1); a plurality of first matching grooves are provided on the first rotating shaft (8); a first slider (7) is slidably arranged on the first rotating shaft (8); the first slider (7) is fixedly connected to the internally threaded slider (6), and a first protruding column (701) slidably engaged with the first matching groove is fixedly mounted on the first slider (7); a first gear (9) is fixedly mounted on the first rotating shaft (8); a second gear (10) meshing with the first gear (9) is rotatably mounted on the discharge sleeve (2); an inclined slide groove (1001) is provided on the second gear (10); and a protruding column (1101) slidably engaged with the inclined slide groove (1001) is fixedly mounted on the baffle (11).
3. A punch plate scale calibration device according to claim 2, characterized in that: The first matching groove comprises a first inclined groove (801), a first vertical groove (802), a second inclined groove (803) and a second vertical groove (804); wherein the first inclined groove (801) and the second inclined groove (803) have opposite inclination directions; one end of the first inclined groove (801) is connected to one end of the first vertical groove (802), and the other end of the first vertical groove (802) is connected to one end of the second inclined groove (803); the other end of the second inclined groove (803) is connected to one end of the second vertical groove (804), and the other end of the second inclined groove (803) is connected to one end of the first inclined groove (801) in another group of the first matching grooves.
4. A punch plate scale calibration device according to claim 3, characterized in that: The lifting mechanism comprises a second rotating shaft (13) rotatably mounted on the bracket (1), a second sliding block (12) fixedly connected to the internal thread sliding block (6) being slidably mounted on the second rotating shaft (13), a plurality of second matching grooves being provided on the second rotating shaft (13), a second protruding column (1201) slidably engaged with the second matching groove being fixedly mounted on the second sliding block (12); a pinion (14) being fixedly mounted on the second rotating shaft (13); a third rotating shaft (16) rotatably mounted on the first supporting plate (101); a large gear (15) meshing with the pinion (14) being fixedly mounted on the third rotating shaft (16); a second spiral groove (1601) being provided on the third rotating shaft (16); a fixed sleeve (17) connected to the third rotating shaft (16) being fixedly mounted on the second supporting plate (102); a third protruding column (1701) slidably engaged with the second spiral groove (1601) being fixedly mounted on the fixed sleeve (17).
5. A punch plate scale calibration device according to claim 4, characterized in that: The second matching includes a third vertical groove (1301) and a first spiral groove (1302); one end of the third vertical groove (1301) is connected to one end of the first spiral groove (1302), and the other end of the first spiral groove (1302) is connected to one end of the third vertical groove (1301) in another group of the second matching grooves.
6. A punch plate scale calibration device according to claim 5, characterized in that: When the first protruding column (701) slides in the first inclined groove (801), the first vertical groove (802) and the second inclined groove (803), the second protruding column (1201) will slide in the third vertical groove (1301); when the first protruding column (701) slides in the second vertical groove (804), the second protruding column (1201) will slide in the first spiral groove (1302).
7. A punch plate scale calibration device according to claim 1, characterized in that: A buffer cone barrel (301) is fixedly mounted on the barrel (3), and an end of the buffer cone barrel (301) with a smaller diameter is fixedly connected to the discharge sleeve (302).
8. A punch plate scale calibration device according to claim 1, characterized in that: A plurality of sets of universal wheels (18) are fixedly mounted on the bottom of the bracket (1).