Dynamic weighing device for rough board

Abstract

The invention relates to the technical field of weighing devices, and discloses a rough board dynamic weighing device which comprises a conveying mechanism, a weighing module, a first correcting mechanism and a second correcting mechanism, the weighing module is installed at the bottom of the conveying mechanism, the first correcting mechanism corrects a rough board in the length direction, and the second correcting mechanism corrects the rough board in the length direction. The second correcting mechanism is used for correcting the rough board in the width direction, and the first correcting mechanism and the second correcting mechanism are matched with each other to correct the rough board to the center position of the conveying mechanism; the rough plate is adjusted to the central position of the conveying mechanism through the first correcting mechanism and the second correcting mechanism, so that the weighing module at the bottom of the conveying mechanism can be stressed uniformly, and the accuracy of data detection is indirectly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of weighing devices, and more particularly to a dynamic weighing device for green boards. Background Art

[0002] As the name implies, dynamic weighing refers to the process of measuring the weight of an object in a moving state. When performing dynamic weighing through a conveyor in the prior art, a weighing module is arranged below the conveyor, and the module includes a support assembly, a load cell, etc. The load cell is used to measure the weight of the goods on the conveyor. When the goods move on the conveyor, the load cell senses the weight change and converts it into an electrical signal, and then performs data processing and calculation through a controller, etc., so as to obtain the weight of the goods. A length calculation module can also be arranged on one side of the front end of the conveying unit. By calculating information such as the length of the goods, the weight of the goods can be obtained more accurately.

[0003] For example, the patent with the publication number CN218309376U and the publication date of January 17, 2023 discloses a new type of dynamic weighing scale, which relates to the technical field of on-line weighing. It includes a base, a conveyor belt and a weighing sensor. An installation frame is arranged on the upper surface of the base. The conveyor belt is composed of a feeding area, a detection area and a discharging area from left to right in sequence. An adjustment mechanism and a deviation correction mechanism are arranged outside the installation frame. The adjustment mechanism includes a servo motor arranged outside the installation frame. A lead screw is fixedly installed on the output shaft of the servo motor. An adjustment sleeve is threadedly connected to the outside of the lead screw. A connecting seat is fixedly installed on the outer wall of the adjustment sleeve away from the installation frame. A first installation sleeve is fixedly installed on one side of the connecting seat. The number of the first installation sleeves is two. Connecting rods are detachably installed inside both of the first installation sleeves. A second telescopic cylinder is fixedly installed on one side of the top first installation sleeve. A second installation sleeve is fixedly installed on the output end of the second telescopic cylinder. The deviation correction mechanism is composed of a connecting shaft and a deviation correction roller. The connecting shaft is rotatably connected to the deviation correction roller, and the connecting shaft is fixed inside the second installation sleeve.

[0004] In the dynamic weighing devices in the prior art, most of the sensors for weighing are arranged at the center position of the bottom of the weighing device or at the four corners of the bottom. Due to the fixed installation position of the sensors, when the weighing object is sent onto the weighing device, it is necessary to make the weighing object located at the center of the weighing device. Among them, as in the above-mentioned disclosed patent, only the weighing object is corrected in the width direction, and the correction in the single width direction cannot make the weighing object located at the center position of the weighing device, still resulting in uneven force among multiple sensors, thus affecting the accuracy of data detection. Summary of the Invention

[0005] The purpose of the present invention is to provide a dynamic weighing device for green boards to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: a green board dynamic weighing device, including a conveying mechanism and a weighing module, the weighing module is installed at the bottom of the conveying mechanism, and further includes a first correction mechanism and a second correction mechanism. The first correction mechanism corrects the green board in the length direction, and the second correction mechanism is used to correct the green board in the width direction. The first correction mechanism and the second correction mechanism cooperate with each other to correct the green board to the central position of the conveying mechanism.

[0007] Preferably, the first correction mechanism includes a support plate, a first correction plate and a second correction plate. The first correction plate and the second correction plate are both installed at the bottom of the support plate, and the first correction plate and the second correction plate are driven to approach or move away from each other on the support plate.

[0008] Preferably, the second correction mechanism includes a connecting rod and a roller shaft. The upper end of the roller shaft is rotatably connected to the connecting rod, the connecting rod is slidably connected to the support plate, and the connecting rod is driven to move on the lower surface of the support plate along the width direction of the conveying mechanism.

[0009] Preferably, the second correction plate is driven to rotate by the bottom of the guide block.

[0010] Preferably, when the second correction plate rotates, it drives the two groups of roller shafts to move away from each other.

[0011] Preferably, a first chute is opened at the bottom of the connecting plate, a first slider is installed in the first chute, the upper end of the roller shaft is rotatably connected to the first slider, the first slider and the first chute form a sliding guiding fit, a second chute is opened on the lower surface of the support plate, a second slider and a spring are installed in the second chute, the second slider and the second chute form a sliding guiding fit, one end of the spring is connected to the groove wall of the second chute, the other end is connected to the second slider, the spring is located on the side of the second slider close to the conveying mechanism, guiding inclined surfaces are provided on one side of the two groups of connecting plates corresponding to each other, and a convex block is provided at the bottom of the second correction plate, and the convex block and the guiding inclined surface form a wedge fit.

[0012] Preferably, an arc groove is opened on the guiding inclined surface, a first limiting block is installed on the convex block, and the first limiting block and the arc groove form a limiting and abutting fit.

[0013] Preferably, there are multiple groups of arc grooves, which are equidistantly distributed along the length direction of the connecting plate.

[0014] Preferably, a through groove is further opened in the connecting plate, a limiting plate and a vertical rod are installed in the through groove, the lower end of the vertical rod is fixedly connected to the limiting plate, a plurality of limiting grooves are opened at the lower end of the limiting plate, a second limiting block is installed at the upper end of the first slider, and the second limiting block and the limiting grooves form a limiting and abutting fit. A groove is further opened on the lower surface of the support plate, the upper end of the vertical rod passes through the through groove and extends into the groove, and forms a wedge fit with the groove.

[0015] Preferably, the side surface of the upper end of the vertical rod facing away from the conveying mechanism is an inclined surface, and the vertical rod forms a wedge fit with the groove through the inclined surface.

[0016] The beneficial effects of the present invention are as follows: in the above technical solution, the present invention uses the first correction mechanism and the second correction mechanism to adjust the rough board to the central position of the conveying mechanism, so that the weighing module at the bottom of the conveying mechanism can be evenly stressed, indirectly improving the accuracy of data detection. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of a front partial cross-sectional view provided by an embodiment of the present invention;

[0019] Figure 2 It is a top cross-sectional view provided by an embodiment of the present invention;

[0020] Figure 3 It is a side cross-sectional view of the connecting rod provided by an embodiment of the present invention;

[0021] Figure 4 It is provided by an embodiment of the present invention Figure 3 The enlarged view of part A in

[0022] Explanation of the Reference Numerals in the Drawings:

[0023] 1. Conveying mechanism; 2. Weighing module; 3. Rough board; 4. First correction mechanism; 41. Support plate; 411. Accommodating groove; 412. Second chute; 413. Groove; 42. First correction plate; 43. Second correction plate; 44. Driving gear; 45. Rack; 46. Guide block; 47. Driving assembly; 48. Protrusion; 49. First limit block; 5. Second correction mechanism; 51. Connecting rod; 52. Roller shaft; 53. Electric push rod; 54. Connecting plate; 541. First chute; 542. Guide inclined surface; 543. Arc-shaped groove; 544. Through groove; 55. First slider; 551; Second limit block; 56. Second slider; 57. Spring; 58. Limit plate; 581. Limit groove; 59. Vertical rod. Detailed Embodiments

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further introduce the present invention in detail in conjunction with the drawings.

[0025] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As Figures 1-4 shown, an embodiment of the present invention provides a green board dynamic weighing device, which includes a conveying mechanism 1 and a weighing module 2. The weighing module 2 is installed at the bottom of the conveying mechanism 1, and further includes a first correction mechanism 4 and a second correction mechanism 5. The first correction mechanism 4 corrects the green board 3 in the length direction, and the second correction mechanism 5 is used to correct the green board 3 in the width direction. The first correction mechanism 4 and the second correction mechanism 5 cooperate with each other to correct the green board 3 to the central position of the conveying mechanism 1.

[0027] Specifically, the conveying mechanism 1 is a roller conveyor, and the weighing module 2 is a weight sensor. In this embodiment, the weight sensor is installed at the bottom of the side support rod of the conveying mechanism 1. The roller conveyor and the weight sensor are both prior arts and will not be elaborated. Both the first correction mechanism 4 and the second correction mechanism 5 are located above the conveying mechanism 1 and do not contact the conveying mechanism 1, that is, the weights of the first correction mechanism 4 and the second correction mechanism 5 themselves will not be applied to the conveying mechanism 1. At the same time, the movements of the first correction mechanism 4 and the second correction mechanism 5 will not affect the weight detection of the weighing module 2. It can be understood that the first correction mechanism 4 and the second correction mechanism 5 are suspended above the conveying mechanism 1, such as being hoisted. There is a certain distance between the first correction mechanism 4 and the second correction mechanism 5 and the conveying mechanism 1, and this distance is less than the height of the green board 3 itself. During actual use, when the green board 3 moves onto the conveying mechanism 1, the conveying mechanism 1 stops working. The first correction mechanism 4 adjusts the position of the green board 3 in the length direction on the conveying mechanism 1, and the second correction mechanism 5 adjusts the position of the green board 3 in the width direction on the conveying mechanism 1. By using the first correction mechanism 4 and the second correction mechanism 5, the green board 3 is adjusted to the central position of the conveying mechanism 1, so that the weighing module 2 at the bottom of the conveying mechanism 1 can be evenly stressed, indirectly improving the accuracy of data detection.

[0028] In an alternative embodiment, preferably, the first correction mechanism 4 includes a support plate 41, a first correction plate 42 and a second correction plate 43. The first correction plate 42 and the second correction plate 43 are both mounted on the bottom of the support plate 41, and the first correction plate 42 and the second correction plate 43 are driven to approach or move away from each other on the support plate 41.

[0029] Specifically, the support plate 41, the conveying mechanism 1 and the rough board 3 have the same length direction and the same width direction. The first correction plate 42 and the second correction plate 43 are both arranged vertically. The second correction mechanism 5 is connected to the support plate 41, and the support plate 41 is hoisted above the conveying mechanism 1, that is, the first correction mechanism 4 and the second correction mechanism 5 are hoisted above the conveying mechanism 1. The distance between the lower ends of the first correction plate 42 and the second correction plate 43 and the conveying surface of the conveying mechanism 1 is less than the height of the rough board 3. This setting of the distance enables the first correction plate 42 and the second correction plate 43 to smoothly push the rough board 3 to move on the conveying mechanism 1 when moving above the conveying mechanism 1. Moreover, after the weight detection of the rough board 3 is completed, the first correction mechanism 4 and the second correction mechanism 5 are hoisted upward again, and the conveying mechanism 1 sends out the detected rough board 3.

[0030] More specifically, a receiving groove 411 is formed inside the support plate 41. A transmission gear 44 and two racks 45 are installed inside the receiving groove 411. The two racks 45 are symmetrically arranged along the transmission gear 44, that is, they are respectively located on the upper and lower sides of the transmission gear 44. The two racks 45 are both meshed with the transmission gear 44 and form a sliding guiding fit with the receiving groove 411. Two guiding blocks 46 are also installed in the receiving groove 411. The two guiding blocks 46 both form a sliding guiding fit with the receiving groove 411. One end of each of the two racks 45 is fixedly connected to one of the two guiding blocks 46 respectively. The first correction plate 42 and the second correction plate 43 are also respectively installed on the lower surfaces of the two guiding blocks 46. A motor (not shown) is also installed on the support plate 41. The motor drives the transmission gear 44 to rotate self in the receiving groove 411. During actual use, the first correction plate 42 and the second correction plate 43 are respectively located at both ends of the support plate 41. When the rough board 3 moves onto the conveying mechanism 1, the external hoisting mechanism drives the support plate 41 to descend. At this time, on both sides of the first correction plate 42 and the second correction plate 43, the driving mechanism drives the rotation of the transmission gear 44 to drive the two racks 45 to approach each other. The movement of the racks 45 drives the two guiding blocks 46 to approach each other in the receiving groove 411 and drives the first correction plate 42 and the second correction plate 43 to approach each other. Since the moving speeds of the first correction plate 42 and the second correction plate 43 are the same and the initial distances from the center of the conveying mechanism 1 are the same, during the process of the first correction plate 42 and the second correction plate 43 approaching each other, they will push the rough board 3 at the eccentric position to move on the conveying mechanism 1, that is, push the rough board 3 to move along its own length direction, and this length direction is the length direction of the conveying mechanism 1. Finally, the rough board 3 is clamped between the first correction plate 42 and the second correction plate 43, that is, at this time, the rough board 3 is adjusted to the central position in the length direction of the conveying mechanism 1. Obviously, the cooperation of the above-mentioned transmission gear 44 and the two racks 45 can also be replaced with other bidirectional synchronous motion mechanisms such as a bidirectional lead screw mechanism. This is the prior art and will not be elaborated.

[0031] In an alternative embodiment, preferably, the second correction mechanism 5 includes a connecting rod 51 and a roller shaft 52. The upper end of the roller shaft 52 is rotatably connected to the connecting rod 51. The connecting rod 51 is slidably connected to the support plate 41. The connecting rod 51 is driven to move on the lower surface of the support plate 41 along the width direction of the conveying mechanism 1.

[0032] Specifically, the connecting rod 51 is horizontally arranged, and the length direction of the connecting rod 51 is consistent with the length direction of the conveying mechanism 1. The roller shaft 52 is vertically arranged. There are two groups of connecting rods 51, and the two groups of connecting rods 51 are symmetrically arranged along the rough board 3. There are multiple roller shafts 52, which are divided into two groups and are respectively installed on the connecting rod 51, and are equidistantly arranged along the length direction of the connecting rod 51. A plurality of electric push rods 53 are installed at the bottom of the support plate 41. The plurality of electric push rods 53 are respectively connected to the two groups of connecting rods 51, and drive the two groups of connecting rods 51 to move closer to or away from each other. The electric push rods 53 drive the connecting rods 51 to move along the width direction of the conveying mechanism 1 on the lower surface of the support plate 41. In actual use, when the first correction plate 42 and the second correction plate 43 adjust the rough board 3 in the length direction, the electric push rods 53 drive the two groups of connecting rods The rod 51 and the rollers 52 thereon are close to each other. Since the two sets of rollers 52 have the same moving speed and the same initial distance from the center of the conveying mechanism 1, the two sets of rollers 52 will push the eccentrically located rough plate 3 to move on the conveying mechanism 1 during the process of approaching each other, that is, push the rough plate 3 to move along its own width direction, which is the width direction of the conveying mechanism 1. Finally, the rough plate 3 is clamped between the two sets of rollers 52, that is, the rough plate 3 is now adjusted to the center position in the width direction of the conveying mechanism 1. Combined with the adjustment of the rough plate 3 in the length direction by the first correction plate 42 and the second correction plate 43, the rough plate 3 is now located in the center position of the conveying mechanism 1, so that the weighing sensor at the bottom of the conveying mechanism 1 can be evenly stressed, thereby indirectly improving the accuracy of data detection.

[0033] In an optional embodiment, preferably, the second correction plate 43 is driven to rotate by the bottom of the guide block 46 .

[0034] Specifically, in the present embodiment, the two groups of connecting rods 51 are both approximately bent structures, so that an approximately Y-shaped moving channel is formed between the two groups of connecting rods 51 and the roller shaft 52, and the larger end of the moving channel opens toward the side of the input direction of the rough plate 3 on the conveying mechanism 1. By setting the shape of the moving channel, it is convenient to introduce the subsequent rough plate 3. The second correction plate 43 is located on the side of the first correction plate 42 away from the conveying direction of the conveying mechanism 1. That is to say, the first correction plate 42 corresponds to the side of the conveying mechanism 1 that sends the rough plate 3 out, and the second correction plate 43 corresponds to the side of the conveying mechanism 1 that inputs the rough plate 3. Figure 1As shown in the figure, the second correction plate 43 is located on the right side of the first correction plate 42. That is, the rough board 3 is fed into the conveying mechanism 1 from the right side and sent out from the left side of the conveying mechanism 1. When the weight of the rough boards 3 of the same size in the same batch is detected, the first correction mechanism 4 and the second correction mechanism 5 only detect the first rough board 3 of the same size in the same batch according to the above steps. After the detection of this rough board 3, the positions of the first correction plate 42, the second correction plate 43 and the two groups of roller shafts 52 are adjusted. And the rectangular space enclosed by the vertically arranged first correction plate 42, the second correction plate 43 and the two groups of vertically arranged roller shafts 52 is the central position of the conveying mechanism 1. As long as the subsequent rough boards 3 move to this enclosed rectangular space, it means that they move to the central position of the conveying mechanism 1. Therefore, after the detection of the first rough board 3, the first correction plate 42 and the two groups of roller shafts 52 do not need to be reset and remain in place;

[0035] Moreover, a driving component 47 is installed in the guiding block 46. The driving component 47 is used to drive the second correction plate 43 to rotate at the bottom of the guiding block 46. That is, the second correction plate 43 is driven to rotate towards the side close to the first correction plate 42. The second correction plate 43 rotates 90 degrees from the vertical state to the horizontal state. The rotated horizontal second correction plate 43 is equivalent to opening one side opening of the above rectangular space, realizing the avoidance during the entry of the subsequent rough boards 3. That is, under the conveying of the conveying mechanism 1, the rough boards 3 enter the rectangular space under the guiding of the two groups of roller shafts 52 on both sides. At the same time, the first correction plate 42 blocks the horizontal movement of the rough boards 3, so that the subsequent rough boards 3 can accurately move into this rectangular space, that is, move to the central position of the conveying mechanism 1, avoiding the need for separate correction adjustment for each rough board 3 and reducing the waste of time.

[0036] More specifically, the driving component 47 includes a motor and a gear set. The gear is composed of a driving gear and a driven gear. The upper end of the second correction plate 43 is rotationally connected to the guiding block 46 through a transmission shaft. The driven gear is sleeved on one end of the transmission shaft, and the driving gear is connected to the output end of the motor. In actual use, the motor can be used to drive the gear set to rotate and drive the second correction plate 43 to rotate at the bottom of the guiding block 46. And a driving component 47 can also be arranged on the guiding block 46 corresponding to the first correction plate 42. During the process of sending out the rough board 3 after its detection, this driving mechanism drives the first correction plate 42 to rotate at the bottom of the guiding block 46 to avoid the rough board 3 being sent out, reducing the complex process of hoisting the first correction mechanism 4 and the second correction mechanism 5.

[0037] In the above embodiments, when the first rough board 3 is detected, the two sets of roller shafts 52 move to both sides in the width direction of the rough board 3. At this time, the distance between the two sets of roller shafts 52 is the width of the first rough board 3. During the subsequent detection process of the rough board 3, it is difficult to introduce the subsequent rough board 3 between the two sets of roller shafts 52 with the same width as itself. Although in other embodiments, the two sets of roller shafts 52 can also be directly driven to move away from each other by a driving unit (such as the electric push rod 53 in the above embodiments), due to the inherent defects of the mechanical transmission mechanism, such as mechanical clearances in transmission components such as gearboxes and lead screw nuts, and manufacturing errors in links such as multi-stage gear reduction and couplings will be amplified step by step, and small inputs may be "absorbed" by the mechanical system and cannot be output, etc. These problems will all cause it difficult for the existing driving unit to directly make fine adjustments to the roller shafts 52. And in this embodiment, there are two sets of roller shafts 52, and the two sets of roller shafts 52 respectively correspond to two sets of driving units. Due to the independence of the two sets of driving units, during the process of the two sets of roller shafts 52 moving away from each other, it is also difficult for the two independent driving units to drive the roller shafts 52 to make synchronous and same-size fine displacement adjustments. Once there is an error in the displacement amount of the two sets of roller shafts 52, it will cause the rough board 3 to deviate from the central position of the conveying mechanism 1, which also enlarges the error of the weight detection data. Therefore, in another embodiment of the present invention, when the second correction plate 43 rotates, it drives the two sets of roller shafts 52 to move away from each other.

[0038] Specifically, two sets of connecting plates 54 are installed on the lower surface of the support plate 41. The two sets of connecting plates 54 are slidably connected to the support plate 41. The electric push rod 53 is installed at the bottom of the connecting plate 54. Both the electric push rod 53 and the connecting rod 51 are connected to the support plate 41 through the connecting plate 54. The length direction of the connecting plate 54 is the same as the length direction of the connecting rod 51. A first sliding groove 541 is formed at the bottom of the connecting plate 54. A first sliding block 55 is installed in the first sliding groove 541. The upper end of the roller shaft 52 is rotatably connected to the first sliding block 55. The first sliding block 55 and the first sliding groove 541 form a sliding guiding fit. A second sliding groove 412 is formed on the lower surface of the support plate 41. A second sliding block 56 and a spring 57 are installed in the second sliding groove 412. The second sliding block 56 and the second sliding groove 412 form a sliding guiding fit. One end of the spring 57 is connected to the groove wall of the second sliding groove 412, and the other end is connected to the second sliding block 56. The spring 57 is located on the side of the second sliding block 56 close to the conveying mechanism 1. Guiding inclined surfaces 542 are provided on the opposite sides of the two sets of connecting plates 54. A convex block 48 is provided at the bottom of the second correction plate 43. During the rotation of the second correction plate 43 towards the first correction plate 42, the convex block 48 at the bottom of the second correction plate 43 contacts the guiding inclined surface 542 on the connecting plate 54 during the rotation. The convex block 48 and the guiding inclined surface 542 form a wedge fit. Therefore, when the second correction plate 43 rotates, the cooperation between the convex block 48 and the guiding inclined surface 542 can force the two sets of connecting plates 54 to move away from each other, that is, drive the two sets of connecting rods 51 and the two sets of roller shafts 52 to move away from each other. At this time, the spring 57 starts to stretch, realizing the second fine adjustment after the first position adjustment of the two sets of connecting rods 51 and the two sets of roller shafts 52 after the detection of the first wool board 3. This fine adjustment slightly enlarges the distance between the two sets of roller shafts 52, facilitating the subsequent entry of the wool board 3 into the above-mentioned rectangular space. When the second correction plate 43 resets and disengages from the guiding inclined surface 542, the spring 57 resets and contracts, driving the connecting plate 54 to reset.

[0039] In an alternative embodiment, preferably, an arc-shaped groove 543 is formed on the guiding inclined surface 542. A first limiting block 49 is installed on the convex block 48. The first limiting block 49 and the arc-shaped groove 543 form a limiting and abutting fit.

[0040] Specifically, there are multiple groups of arc-shaped grooves 543, which are equidistantly distributed along the length direction of the connecting plate 54. During actual use, when the convex block 48 contacts the guiding inclined surface 542, the first limiting block 49 enters the arc-shaped groove 543 and slides within the arc-shaped groove 543. At the same time, the first limiting block 49 is restricted within the arc-shaped groove 543 and cannot move along the length direction of the conveying mechanism 1. That is, the first correcting plate 42 cannot move along the length direction of the conveying mechanism 1. Also, because the first correcting plate 42 and the second correcting plate 43 move synchronously through the cooperation of the transmission gear 44 and the rack 45, when the second correcting plate 43 cannot move, the first correcting plate 42 cannot move either, thus realizing the position locking of the first correcting plate 42. The arrangement of multiple arc-shaped grooves 543 corresponds to the second correcting plate 43, avoiding the deviation of its position when the conveying mechanism 1 collides with it during the conveying of the rough board 3. At the same time, it also avoids the problem that the position of the first correcting plate 42 deviates due to the mis-starting of the motor driving the transmission gear 44.

[0041] In an alternative embodiment, preferably, a through groove 544 is further formed in the connecting plate 54. A limiting plate 58 and a vertical rod 59 are installed in the through groove 544. The lower end of the vertical rod 59 is fixedly connected to the limiting plate 58. A plurality of limiting grooves 581 are formed at the lower end of the limiting plate 58. The upper end of the first slider 55 is provided with a second limiting block 551, and the second limiting block 551 and the limiting grooves 581 form a limiting and abutting fit. A groove 413 is further formed on the lower surface of the support plate 41. The upper end of the vertical rod 59 passes through the through groove 544 and extends into the groove 413, and forms a wedge-shaped fit with the groove 413.

[0042] Specifically, the side surface of the upper end of the vertical rod 59 facing away from the conveying mechanism 1 is an inclined surface, and the vertical rod 59 forms a wedge-shaped fit with the groove 413 through the inclined surface. The outer wall of the vertical rod 59 is also sleeved with a spring 57, one end of the spring 57 is connected to the outer wall of the vertical rod 59, and the other end is connected to the groove wall of the through groove 544. Before the second correction plate 43 rotates, the upper end of the vertical rod 59 is located in the groove 413, and the limit plate 58 is located above the limit block. After the second correction plate 43 rotates, the second slider 56 slides in the second slide groove 412 and drives the vertical rod 59 to move synchronously. The vertical rod 59 drives itself to descend during the movement through the wedge-shaped fit with the groove 413, that is, it shrinks into the through groove 544, and at the same time, the spring 57 on the vertical rod 59 begins to shrink The limit plate 58 begins to shrink, and the limit plate 58 begins to descend, and the second limit block 551 enters the limit groove 581. The limit groove 581 restricts the first slider 55 to be unable to move in the first slide groove 541, that is, the positions of the connecting rod 51 and the roller shaft 52 are limited and fixed on the connecting plate 54 at this time. When the electric push rod 53 is mistakenly started, the positions of the roller shaft 52 and the connecting rod 51 cannot move. Finally, after the second correction plate 43 is reset, the spring 57 on the vertical rod 59 also drives the vertical rod 59 to reset and rise, so that the second limit block 551 is disengaged from the limit groove 581. After the first protrusion 48 loses the restriction of the second limit block 551 and the limit groove 581, the connecting rod 51 and the roller shaft 52 can be smoothly adjusted in position through the electric push rod 53.

[0043] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rough board dynamic weighing device, comprising a conveying mechanism and a weighing module, wherein the weighing module is installed at the bottom of the conveying mechanism, characterized in that: It also includes a first correcting mechanism and a second correcting mechanism. The first correcting mechanism corrects the rough board in the length direction, and the second correcting mechanism is used to correct the rough board in the width direction. The first correcting mechanism and the second correcting mechanism cooperate with each other to correct the rough board to the center position of the conveying mechanism.

2. A rough board dynamic weighing device according to claim 1, characterized in that: The first correction mechanism includes a support plate, a first correction plate and a second correction plate. The first correction plate and the second correction plate are both installed at the bottom of the support plate. The first correction plate and the second correction plate are driven on the support plate to move closer to or away from each other.

3. A rough board dynamic weighing device according to claim 2, characterized in that: The second correction mechanism includes a connecting rod and a roller shaft. The upper end of the roller shaft is rotatably connected to the connecting rod, and the connecting rod is slidably connected to the support plate. The connecting rod is driven to move along the width direction of the conveying mechanism on the lower surface of the support plate.

4. A rough board dynamic weighing device according to claim 3, characterized in that: The second correction plate is driven to rotate by the bottom of the guide block.

5. A rough board dynamic weighing device according to claim 4, characterized in that: The second correcting plate drives the two sets of rollers away from each other when rotating.

6. A rough board dynamic weighing device according to claim 3, characterized in that: A first slide groove is provided at the bottom of the connecting plate, a first slider is installed in the first slide groove, the upper end of the roller shaft is rotatably connected to the first slider, the first slider and the first slide groove form a sliding guide cooperation, a second slide groove is provided on the lower surface of the supporting plate, a second slider and a spring are installed in the second slide groove, the second slider and the second slide groove form a sliding guide cooperation, one end of the spring is connected to the groove wall of the second slide groove, and the other end is connected to the second slider, the spring is located on the side of the second slider close to the conveying mechanism, a guide inclined surface is provided on the corresponding side of the two sets of connecting plates, a protrusion is provided at the bottom of the second correction plate, and the protrusion and the guide inclined surface form a wedge-shaped cooperation.

7. A rough board dynamic weighing device according to claim 6, characterized in that: An arc groove is arranged on the guide inclined surface, a first limiting block is installed on the protruding block, and the first limiting block and the arc groove form a limiting abutment fit.

8. A rough board dynamic weighing device according to claim 7, characterized in that: A plurality of arc-shaped grooves are provided and are evenly distributed along the length direction of the connecting plate.

9. A rough board dynamic weighing device according to claim 6, characterized in that: A through slot is also provided in the connecting plate, and a limit plate and a vertical rod are installed in the through slot. The lower end of the vertical rod is fixedly connected to the limit plate, and a plurality of limit slots are provided at the lower end of the limit plate. A second limit block is installed at the upper end of the first slider, and the second limit block forms a limit abutment fit with the limit slot. A groove is also provided on the lower surface of the supporting plate, and the upper end of the vertical rod passes through the through slot and extends into the groove, and forms a wedge-shaped fit with the groove.

10. A rough board dynamic weighing device according to claim 9, characterized in that: A side surface of the upper end of the vertical rod facing away from the conveying mechanism is an inclined surface, and the vertical rod forms a wedge-shaped fit with the groove through the inclined surface.

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