Weighing and transferring automation system, matched frame body and application

Abstract

The invention belongs to the technical field of tobacco processing equipment, and particularly relates to a weighing and transferring system. Comprising a first conveyor belt (1), a second conveyor belt (2) and a transfer unit (4) between the first conveyor belt and the second conveyor belt. The heavy transfer system further comprises a matched frame body (3). The invention further discloses application of the weighing and transferring system to weighing and transferring of the tobaccos.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco equipment, and in particular relates to an automated weighing and transporting system, a matching frame and uses of tobacco weighing and transporting. Background Art

[0002] In tobacco processing and many other industrial production processes, automatic material handling and accurate weighing are key links to improve production efficiency and product quality. Traditional material handling and weighing equipment mostly rely on manual operation or simple automated machinery, which has problems of low efficiency and low precision. Due to the inevitable human intervention, it is easy to cause damage or loss of materials, especially when facing materials with irregular shapes and weights, traditional equipment is difficult to provide accurate and consistent processing methods. In addition, manual operation is easily affected by the working status of personnel, which increases the uncertainty of factory production.

[0003] Although there are similar handling and weighing equipment on the market, for example, Chinese patent: CN214568237U discloses a logistics transfer cargo weighing equipment, which includes a base, and an automatic weighing structure is installed on the top of the base. When the logistics cargo is transferred, the scanner in the automatic weighing structure can scan the cargo of different sizes, and the weighing bin can weigh the cargo, which effectively solves the current problem that workers need to operate during cargo transfer weighing, which leads to low work efficiency and high cost. However, this equipment cannot be well applied in the field of tobacco processing, because the shapes of tobacco materials in the tobacco industry are different, and the tobacco materials need to be transported to the next location after weighing. Obviously, there is no such equipment for automatic transfer and weighing of tobacco materials.

[0004] The present invention has been proposed to solve the above-mentioned problems. Summary of the invention

[0005] In view of this, the present invention provides an automated weighing and transporting system, a matching frame and a use of tobacco weighing and transporting, which solves the problem that there is currently a lack of equipment on the market that can automatically weigh and transport tobacco materials.

[0006] The technical solution of the present invention is as follows:

[0007] The first aspect of the present invention discloses an automated weighing and transporting system for a matching frame, which comprises: a first conveyor belt 1 and a second conveyor belt 2, and a transporting unit 4 therebetween for transporting the matching frame;

[0008] The transfer unit 4 includes a base 401 and a turntable 402 arranged above the base 401, and the base 401 and the turntable 402 are both arranged horizontally; the upper surface of the base 401 is on the same horizontal plane as the upper surfaces of the first conveyor belt 1 and the second conveyor belt 2; a weighing device 405 and a discharge unit 6 are also arranged on the upper surface of the base 401; the discharge unit 6 faces the conveying direction of the second conveyor belt 2; the discharge unit 6 can push the matching frame 3 onto the second conveyor belt 2 for discharge;

[0009] The turntable 402 is in the shape of a disk, and a plurality of U-shaped openings are cut on the edge of the circumferential wall of the turntable 402 to form positioning openings 404, and the positioning openings 404 are adapted to the matching frame 3; the turntable 402 is connected to a first driving motor 403 arranged on the lower surface of the base 401, and the first driving motor 403 drives the turntable 402 to rotate.

[0010] Preferably, a distance sensor 17, a correction unit 8 and an adjustment and positioning unit 5 are sequentially arranged in the direction of the first conveyor belt 1 toward the transfer unit 4; the distance sensor 17 is arranged above the first conveyor belt 1 and spans the inner wall of the inverted U-shaped support frame of the first conveyor belt 1, and the detection range of the distance sensor 17 covers the width of the first conveyor belt 1.

[0011] Preferably, the correction unit 8 includes: a support shell 801, a second drive motor 802 at the center of the upper wall surface of the support shell 801 and a support plate 803 on the inner side of the support shell 801; the support shell 801 is an inverted U-shape spanning the first conveyor belt 1; the second drive motor 802 is connected to the support plate 803, and the output end of the second drive motor 802 is vertically downward and connected to the support plate 803 located on the inner side of the support shell 801; the support plate 803 is connected to the movable bracket 805 through the third telescopic rod 804; the movable bracket 805 is an inverted U-shape, which is horizontally arranged above the first conveyor belt 1; the two back ends of the inverted U-shape of the movable bracket 805 are provided with retractable telescopic blocks 806, and the telescopic blocks 806 are provided with horizontal inward clamping blocks 807; the second drive motor 802 can drive the matching frame 3 to rotate 90° and correct the position of the matching frame 3. The correction unit 8 detects the actual position of the supporting frame 3 in real time through the distance sensor 17 located above the first conveyor belt, and makes feedback adjustments through the central control unit. The detection accuracy of the distance sensor is ±1 mm, ensuring that the device can sense the deviation of the supporting frame 3 in real time. Once the position deviation is detected, the second drive motor 802 starts immediately, driving the movable bracket 805 connected to the support plate 803 and the telescopic rod 804 to move. The movable bracket 805 clamps the two sides of the supporting frame 3, and through the cooperation of the retractable telescopic block 806 and the clamping block 807, ensure that the supporting frame 3 is accurately adjusted to the predetermined position. The reaction time of the entire correction process is less than 0.5 seconds, and the maximum selection angle can be 90°.

[0012] Preferably, the adjustment and positioning unit 5 includes a driving member 500 and a guide bracket 9; the driving member 500 is two pieces, which are symmetrically arranged on both sides of the first conveyor belt 1; each driving member 500 includes a screw rod 503 and a slider 504 connected thereto; the screw rod 503 is arranged along the conveying direction of the first conveyor belt 1, and the slider 504 is provided with a first telescopic rod 501 in a direction perpendicular to the conveying direction of the first conveyor belt 1, and the end of the first telescopic rod 501 is a stopper 502; the two stoppers 502 are relatively arranged on the upper part of the first conveyor belt 1; the screw rod 503 and the first telescopic rod 501 are connected to the third driving motor 505, wherein the screw rod 503 can move along the conveying direction of the first conveyor belt 1, and the first telescopic rod 501 can be telescoped in a direction perpendicular to the conveying direction of the first conveyor belt 1;

[0013] The guide bracket 9 is composed of two pieces, which are symmetrically and vertically fixed on the upper part of the driving member 500 on both sides of the first conveyor belt 1, and the spacing between the two guide brackets 9 gradually decreases toward the transmission direction of the first conveyor belt 1 until they abut against the edge 302 surface of the matching frame 3; each guide bracket 9 is vertically provided with a plurality of rollers 10, and the axial direction of each roller 10 is parallel to the side surface of the matching frame 3; the top of the two guide brackets 9 are evenly spaced and provided with first guide blocks 11; the first guide blocks 11 abut against the edge 302 surface of the matching frame 3; the driving member 500 and the guide bracket 9 in the adjustment and positioning unit 5 jointly clamp the matching frame 3 and perform positioning and deviation correction on it. The distance sensor 17 and the adjustment and positioning unit 5 are both electrically connected to the central control unit.

[0014] Preferably, there are four positioning openings 404, which are evenly distributed on the edge of the circumferential wall of the turntable 402; the second guide blocks 12 are fixedly provided on the upper surface of the turntable 402 on both back sides of the U-shape of each positioning opening 404; the second guide blocks 12 are in contact with the surface of the edge 302 of the matching frame 3, and the second guide blocks 12 and the first guide blocks 11 are on the same horizontal plane; a movable block 13 is provided on the upper surface of the turntable 402 at the bottom edge of the U-shape of each positioning opening 404, and an electromagnet 14 cooperating with the movable block 13 is provided on the lower surface of the turntable 402, and the shape of the movable block 13 is adapted to the gap 304 between the edge 302 of the matching frame 3 and the matching frame body 301; the electromagnet 14 will control the movable block 13 to enter or leave the gap 304 when the power is turned on and off; the second guide block 12 and the movable block 13 cooperate with each other to limit the matching frame 3 within the positioning opening 404.

[0015] Preferably, the surface of the base 401 is provided with a boss 15 protruding from its surface, the weighing device 405 is embedded in the boss 15, and the upper surface of the weighing device 405 is in the same horizontal plane as the upper surface of the boss 15; the boss 15 is rectangular and compatible with the matching frame 3; the weighing device 405 can weigh the matching frame 3; the surface of the boss 15 and the surface of the base 401 are slopes, which is conducive to the bottom surface of the matching frame 3 to smoothly enter the surface of the boss 15 from the surface of the base 401; when the turntable 402 drives the matching frame 3 transported by the first conveyor belt 1 to rotate a certain angle, the weighing device 405 can weigh the matching frame 3, and the weighing device can use an electronic scale, or existing known technology to weigh the matching frame. When the supporting frame 3 rotates to above the weighing device 405, the turntable 402 stops rotating, and the supporting frame 3 is slowly lifted to the weighing plane of the weighing device 405 through the boss 15 set on the base 401. The weighing accuracy of the weighing device 405 can reach ±0.1 grams, ensuring high-precision weighing of the supporting frame 3 or the material.

[0016] Preferably, the unloading unit 6 includes a second telescopic rod 601 and a push plate 602 arranged at the end of the second telescopic rod 601, and the second telescopic rod 601 is arranged on the lower surface of the base 401; a gap 406 is opened on the wall of the base 402 along the center line of the conveying direction of the second conveyor belt 2; the push plate 602 passes through the gap 406 and abuts against the wall surface of the matching frame 3.

[0017] Preferably, the first conveyor belt 1 and the transfer unit 4, as well as the second conveyor belt 2 and the transfer unit 4, are connected via a pallet 7 for the matching frame 3 to smoothly enter or leave, and the pallet 7 is fixedly connected to the base 401 by bolts.

[0018] Preferably, the matching frame 3 includes a frame body 301, and the frame body 301 is a frame with a rectangular upper opening and a rectangular bottom wall, and the upper opening rectangle is larger than the bottom wall rectangle, and its horizontal cross-section is a rectangle and the vertical cross-section is a trapezoid; the frame wall of the upper opening of the frame body 301 is turned outward 180° to form a surrounding edge 302, and a gap 304 is formed between the surrounding edge 302 and the frame body 301, and a plurality of ribs are arranged in the gap 304 to connect the surrounding edge 302 and the frame body 301, and the plurality of ribs are evenly vertically arranged and extend outward from the gap 304 to form a plurality of third guide blocks 16; the length between two adjacent third guide blocks 16 is a gap 303, and the length of the gap 303 is adapted to the length of the first guide block 11 and the second guide block 12.

[0019] Preferably, the first driving motor 403, weighing device 405, first telescopic rod 501, driving member 500, second telescopic rod 601, etc. are electrically connected to a central control unit. The central control unit can adopt a device with logical operations such as a PLC and an intelligent processor. The continuous automated transportation and weighing of the weighing and transportation system can be realized through the program pre-written by the staff.

[0020] The second aspect of the present invention discloses the use of the weighing and transporting system for weighing and transporting tobacco.

[0021] The beneficial effects of the present invention are:

[0022] 1. The weighing and transporting system of the present invention adopts advanced automation technology and precise control system. Through the cooperation of distance sensor 17, deviation correction unit 8, adjustment and positioning unit 5, unloading unit 6, etc., it can position and correct the matching frame 3 placed in an irregular position on the first conveyor belt, ensure that the matching frame can enter the positioning port 404 according to the specified position, and carry out subsequent weighing, transporting, unloading and other processes, ensure the stability of the system of the present invention during operation, improve work efficiency and accuracy, reduce manual operation, and reduce production costs. The weighing and transporting system of the present invention is suitable for the tobacco industry and other industrial production fields that require precise material handling and weighing.

[0023] 2. The weighing and transferring system of the present invention can automatically weigh and transfer the matching frame through the cooperation of the first conveyor belt, the transfer unit and the second conveyor belt, and the transfer unit also has a reserved opening that can be used to adjust the position of the second conveyor belt, or to add other working units in the future, so as to facilitate subsequent upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of the overall structure of the transfer system of the present invention.

[0025] Figure 2 It is a rear view of the overall structure of the transfer system of the present invention.

[0026] Figure 3 for Figure 1 Section view at AA in the middle.

[0027] Figure 4 for Figure 1 Enlarged schematic diagram of point B in the middle.

[0028] Figure 5 for Figure 1 Enlarged schematic diagram at point C in the middle.

[0029] Figure 6 for Figure 2 Enlarged schematic diagram at point D in the middle.

[0030] Figure 7 This is a schematic diagram of the D supporting frame structure of the present invention.

[0031] Figure 8 for Figure 3 Enlarged schematic diagram at F in the middle.

[0032] Fig. 9 It is a side view of the transfer unit of the present invention.

[0033] Fig.10 A schematic diagram of the motion trajectory of the supporting frame and the telescopic block after the abutment of the present invention;

[0034] Fig.11 for Figure 2 Enlarged schematic diagram at point G in the middle.

[0035] The following are marked in the accompanying drawings:

[0036] 1. First conveyor belt; 11. First guide block; 12. Second guide block; 13. Movable block; 14. Electromagnet; 15. Boss; 16. Third guide block; 17. Distance sensor; 2. Second conveyor belt; 3. Matching frame; 301. Frame body; 302. Edge; 303. Notch; 304. Gap; 4. Transfer unit; 401. Base; 402. Turntable; 403. First drive motor; 404. Positioning port; 405. Weighing device; 406. Gap; 5. Adjustment and positioning unit; 500, driving member; 501, first telescopic rod; 502, stop block; 503, screw rod; 504, slider; 505, third drive motor; 6, unloading unit; 601, second telescopic rod; 602, push plate; 7, support plate; 8, deviation correction unit; 801, support shell; 802, second drive motor; 803, support plate; 804, third telescopic rod; 805, movable bracket; 806, telescopic block; 807, clamping block; 9, bracket; 10, roller. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below through specific examples. The examples can enable those skilled in the art to understand the present invention more comprehensively, but do not limit the present invention in any way.

[0038] like Figures 1 to 11 As shown, a weighing and transporting automation system for a matching frame comprises: a first conveyor belt 1 and a second conveyor belt 2, and a transport unit 4 therebetween for transporting the matching frame;

[0039] The transfer unit 4 includes a base 401 and a turntable 402 arranged above the base 401, and the base 401 and the turntable 402 are both arranged horizontally; the upper surface of the base 401 is on the same horizontal plane as the upper surfaces of the first conveyor belt 1 and the second conveyor belt 2; a weighing device 405 and a discharge unit 6 are also arranged on the upper surface of the base 401; the discharge unit 6 faces the conveying direction of the second conveyor belt 2; the discharge unit 6 can push the matching frame 3 onto the second conveyor belt 2 for discharge;

[0040] The turntable 402 is in the shape of a disk, and a plurality of U-shaped openings are cut on the edge of the circumferential wall of the turntable 402 to form positioning openings 404, and the positioning openings 404 are adapted to the matching frame 3; the turntable 402 is connected to a first driving motor 403 arranged on the lower surface of the base 401, and the first driving motor 403 drives the turntable 402 to rotate.

[0041] Wherein, a distance sensor 17, a deviation correction unit 8 and an adjustment and positioning unit 5 are sequentially arranged in the direction from the first conveyor belt 1 to the transfer unit 4; the distance sensor 17 is arranged above the first conveyor belt 1 and across the inner wall of the inverted U-shaped support frame of the first conveyor belt 1, and the detection range of the distance sensor 17 covers the width of the first conveyor belt 1. Figure 1 and Figure 2 shown.

[0042] Wherein, the correction unit 8 includes: a support shell 801, a second drive motor 802 at the center of the upper wall surface of the support shell 801 and a support plate 803 on the inner side of the support shell 801; the support shell 801 is an inverted U-shape spanning across the first conveyor belt 1; the second drive motor 802 is connected to the support plate 803, and the output end of the second drive motor 802 is vertically downward and connected to the support plate 803 located on the inner side of the support shell 801; the support plate 803 is connected to the movable bracket 805 through the third telescopic rod 804; the movable bracket 805 is an inverted U-shape, which is horizontally arranged above the first conveyor belt 1; the two back ends of the inverted U-shape of the movable bracket 805 are provided with retractable telescopic blocks 806, and the telescopic blocks 806 are provided with horizontal inward clamping blocks 807; the second drive motor 802 can drive the matching frame 3 to rotate 90° and correct the position of the matching frame 3. The correction unit 8 detects the actual position of the supporting frame 3 in real time through the distance sensor 17 located above the first conveyor belt, and makes feedback adjustments through the central control unit. The detection accuracy of the distance sensor is ±1 mm, ensuring that the device can sense the deviation of the supporting frame 3 in real time. Once the position deviation is detected, the second drive motor 802 starts immediately, driving the movable bracket 805 connected to the support plate 803 and the telescopic rod 804 to move. The movable bracket 805 clamps the two sides of the supporting frame 3, and through the cooperation of the retractable telescopic block 806 and the clamping block 807, ensure that the supporting frame 3 is accurately adjusted to the predetermined position. The reaction time of the entire correction process is less than 0.5 seconds, and the maximum selection angle can be 90°.

[0043] Wherein, the adjustment and positioning unit 5 includes a driving member 500 and a guide bracket 9; the driving member 500 is two pieces, which are symmetrically arranged on both sides of the first conveyor belt 1; each driving member 500 includes a screw rod 503 and a slider 504 connected thereto; the screw rod 503 is arranged along the conveying direction of the first conveyor belt 1, and the slider 504 is provided with a first telescopic rod 501 in a direction perpendicular to the conveying direction of the first conveyor belt 1, and the end of the first telescopic rod 501 is a stopper 502; the two stoppers 502 are relatively arranged on the upper part of the first conveyor belt 1; the screw rod 503 and the first telescopic rod 501 are connected to the third driving motor 505, wherein the screw rod 503 can move along the conveying direction of the first conveyor belt 1, and the first telescopic rod 501 can be telescoped in a direction perpendicular to the conveying direction of the first conveyor belt 1;

[0044] The guide bracket 9 is composed of two pieces, which are symmetrically and vertically fixed on the upper part of the driving member 500 on both sides of the first conveyor belt 1, and the spacing between the two guide brackets 9 gradually decreases toward the transmission direction of the first conveyor belt 1 until they abut against the edge 302 surface of the matching frame 3; each guide bracket 9 is vertically provided with a plurality of rollers 10, and the axial direction of each roller 10 is parallel to the side surface of the matching frame 3; the top of the two guide brackets 9 are evenly spaced and provided with first guide blocks 11; the first guide blocks 11 abut against the edge 302 surface of the matching frame 3; the driving member 500 and the guide bracket 9 in the adjustment and positioning unit 5 jointly clamp the matching frame 3 and perform positioning and deviation correction on it. The distance sensor 17 and the adjustment and positioning unit 5 are both electrically connected to the central control unit.

[0045] Among them, there are four positioning openings 404, which are evenly distributed on the edge of the circumferential wall of the turntable 402; the second guide blocks 12 are fixedly provided on the upper surface of the turntable 402 on the two back sides of the U-shape of each positioning opening 404; the second guide blocks 12 are in contact with the surface of the edge 302 of the matching frame 3, and the second guide blocks 12 and the first guide blocks 11 are on the same horizontal plane; a movable block 13 is provided on the upper surface of the turntable 402 at the bottom edge of the U-shape of each positioning opening 404, and an electromagnet 14 matching the movable block 13 is provided on the lower surface of the turntable 402, and the shape of the movable block 13 is adapted to the gap 304 between the edge 302 of the matching frame 3 and the matching frame body 301; the electromagnet 14 will control the movable block 13 to enter or leave the gap 304 when the power is turned on and off; the second guide block 12 and the movable block 13 cooperate with each other to limit the matching frame 3 within the positioning opening 404.

[0046] Among them, the surface of the base 401 is provided with a boss 15 protruding from its surface, and the weighing device 405 is embedded in the boss 15, and the upper surface of the weighing device 405 is in the same horizontal plane as the upper surface of the boss 15; the boss 15 is rectangular and compatible with the matching frame 3; the weighing device 405 can weigh the matching frame 3; the surface of the boss 15 and the surface of the base 401 are slopes, which is conducive to the bottom surface of the matching frame 3 to smoothly enter the surface of the boss 15 from the surface of the base 401; when the turntable 402 drives the matching frame 3 transported by the first conveyor belt 1 to rotate a certain angle, the weighing device 405 can weigh the matching frame 3, and the weighing device can use an electronic scale, or existing known technology to weigh the matching frame. When the supporting frame 3 rotates to above the weighing device 405, the turntable 402 stops rotating, and the supporting frame 3 is slowly lifted to the weighing plane of the weighing device 405 through the boss 15 set on the base 401. The weighing accuracy of the weighing device 405 can reach ±0.1 grams, ensuring high-precision weighing of the supporting frame 3 or the material.

[0047] Among them, the unloading unit 6 includes a second telescopic rod 601 and a push plate 602 arranged at the end of the second telescopic rod 601, and the second telescopic rod 601 is arranged on the lower surface of the base 401; a gap 406 is opened in the wall of the base 402 along the center line of the conveying direction of the second conveyor belt 2; the push plate 602 passes through the gap 406 and abuts against the wall surface of the matching frame 3.

[0048] The first conveyor belt 1 and the transfer unit 4, as well as the second conveyor belt 2 and the transfer unit 4, are connected via a support plate 7 for the matching frame 3 to smoothly enter or leave, and the support plates 7 are fixedly connected to the base 401 by bolts.

[0049] Among them, the matching frame 3 includes a frame body 301, and the frame body 301 is a frame with a rectangular upper opening and a rectangular bottom wall, and the upper opening rectangle is larger than the bottom wall rectangle, and its horizontal cross-section is a rectangle and the vertical cross-section is a trapezoid; the frame wall of the upper opening of the frame body 301 is turned outward 180° to form a surrounding edge 302, and a gap 304 is formed between the surrounding edge 302 and the frame body 301, and a plurality of ribs are arranged in the gap 304 to connect the surrounding edge 302 and the frame body 301, and the plurality of ribs are evenly vertically arranged and extend outward from the gap 304 to form a plurality of third guide blocks 16; the length between two adjacent third guide blocks 16 is a gap 303, and the length of the gap 303 is adapted to the length of the first guide block 11 and the second guide block 12.

[0050] Among them, the first driving motor 403, the weighing device 405, the first telescopic rod 501, the driving member 500, the second telescopic rod 601, etc. are electrically connected to the central control unit. The central control unit can adopt PLC, intelligent processor and other devices with logical operations. Through the program pre-written by the staff, the continuous automatic transportation and weighing of the weighing and transportation system can be realized.

[0051] The weighing and transporting system of the present invention is used for weighing and transporting tobacco, and the steps are as follows:

[0052] The staff first places a plurality of matching frames 3 filled with tobacco leaves on the first conveyor belt 1 in sequence. When placing, the matching frames 3 are placed on the first conveyor belt 1 in sequence; the first conveyor belt 1 moves the matching frames 3 toward the turntable 402, and the distance sensor 17 senses the interval and position of the matching frames 3; then the central control unit controls the first drive motor 403 to drive the turntable 402 to rotate a certain angle, so that one of the positioning ports 404 corresponds to the end point of the first conveyor belt 1. When the matching frames 3 are driven by the first conveyor belt 1 to move to the end point, , since the position of the supporting frame 3 cannot accurately enter the positioning port 404; therefore, in order to ensure that the supporting frame 3 can smoothly enter the positioning port 404, the correction unit 8 and the adjustment and positioning unit 5 correct and adjust the supporting frame 3 to ensure that the supporting frame 3 can smoothly enter the positioning port 404, and the positioning port 404 and the outer surface of the supporting frame 3 abut against each other and limit them; at this time, the control driving member 500 and the first telescopic rod 501 are reset, and the first driving motor 403 is controlled to drive the turntable 402 and the supporting frame 3 to rotate 90°, and the supporting frame 3 is just located at the weighing The upper surface of the device 405 controls the turntable 402 to pause for at least five seconds to ensure that the weighing device 405 can accurately measure the total weight of the supporting frame 3 and the tobacco leaves loaded in the supporting frame 3; after weighing the total weight of the supporting frame 3, the data is transmitted to the central control unit for recording, and the system controls the turntable 402 again to make the turntable 402 continue to rotate at a certain angle and then stop. At this time, the supporting frame 3 is opposite to the input end of the second conveyor belt 2, and the unloading unit 6 is started. The telescopic end of the second telescopic rod 601 starts to work and drives the push plate 602 to move toward the second conveyor belt 2. The push plate While 602 is moving, one side surface thereof will abut against the matching frame 3 and synchronously drive the matching frame 3 to move. When the telescopic end of the second telescopic rod 601 is extended a certain distance, the push plate 602 pushes the matching frame 3 to the upper surface of the second conveyor belt 2 for unloading. The second conveyor belt 2 transports the matching frame 3 to the next position, completing the automatic transfer and weighing of a matching frame 3. Placing multiple matching frames 3 on the first conveyor belt 1 at intervals in sequence can automatically and continuously weigh, transfer and unload multiple matching frames 3, which greatly reduces the burden on the staff.

[0053] Wherein, a correction unit 8 for adjusting the position of the supporting frame 3 is provided above the first conveyor belt 1. The correction unit 8 is arranged before the adjustment and positioning unit 5 and after the distance sensor 17. The correction unit 8 includes a support shell 801 mounted above the first conveyor belt 1 and a second drive motor 802 vertically arranged on its upper surface. The support shell 801 is shaped as follows: Figure 1-3 As shown, the support shell 801 is fixed above the first conveyor belt 1 by bolts, the second drive motor 802 is arranged at the center of the upper surface of the support shell 801, and the output end of the second drive motor 802 is vertically downward and connected to the support plate 803 located on the inner side of the support shell 801, and the support plate 803 is horizontally arranged above the first conveyor belt 1, and the correction unit 8 also includes a third telescopic rod 804 vertically arranged on the upper surface of the support plate 803 and a movable bracket 805 fixed to the telescopic end of the third telescopic rod 804, the third telescopic rod 804 is provided with two pieces, which are symmetrically arranged relative to the axis of the first conveyor belt 1; the movable bracket 805 is arranged between the first conveyor belt 1 and the support plate 803, the telescopic ends of the two third telescopic rods 804 are fixed to the movable bracket 805 and drive it to telescope or rotate in the vertical direction, and the movable bracket 8 05 is an inverted U-shape, which is horizontally arranged above the first conveyor belt 1; the two back ends of the inverted U-shape of the movable bracket 805 are provided with retractable telescopic blocks 806, and the telescopic blocks 806 are provided with horizontal inward clamping blocks 807; the second drive motor 802 can drive the supporting frame 3 to rotate a maximum of 90° and correct the position of the supporting frame 3; when correcting the supporting frame 3, the telescopic block 806 first contacts one side of the supporting frame 3, and the lower end surface height of the telescopic block 806 is higher than the telescopic block 806 of the movable bracket 805 at the other end, and when the third telescopic rod 804 drives the movable bracket 805 to move vertically, the two clamping blocks 807 simultaneously abut against the supporting frame 3 and clamp the supporting frame 3, and the second drive motor 802 drives the supporting frame 3 to rotate to correct its position; the maximum correction rotation angle can be 90°. Fig.10 As shown by the dotted line, when the supporting frame 3 enters the correction unit 8 at another angle, the movable bracket 805 moves vertically downward under the action of the third telescopic rod 804, so that one side surface of the telescopic block 806 first abuts against the surface of the supporting frame 3, and after the supporting frame 3 is abutted, it will deflect under the action of the first conveyor belt 1, and the deflection angle is as shown in FIG. Fig.10 As shown by the circular arrow in the middle, until the other side surface of the supporting frame 3 is in surface contact with the surface of the telescopic block 806, at this time, the position of the supporting frame 3 is as shown in FIG. Fig.10As shown by the solid line; then, the third telescopic rod 804 drives the movable bracket 805 to rise vertically until the bottom end of the movable bracket 805 is higher than the upper surface of the supporting frame 3 by a distance and leaves the supporting frame 3; at this time, the supporting frame 3 will move toward the adjustment and positioning unit 5 under the action of the first conveyor belt 1, and adjust and move to the standard position under the action of the adjustment and positioning unit 5, so that the center of the supporting frame 3 is located on the axis of the first conveyor belt 1, and then enters the positioning port 404 under the action of the first conveyor belt 1. In summary, when the supporting frame 3 cannot be placed on the first conveyor belt 1 according to the specified position, the correction unit 8 can adjust the position of the supporting frame 3 with an irregular placement position, so that the supporting frame 3 finally output can always be transported to the adjustment and positioning unit 5 at an angle, which effectively reduces the burden on the staff when placing the supporting frame 3 and improves the stability of the present invention when working.

[0054] The adjusting and positioning unit 5 includes a driving member 500 and a guide bracket 9, each of which is provided with two pieces and is symmetrically arranged relative to the axis of the first conveyor belt 1. The driving member 500 includes a screw rod 503 horizontally arranged along the axis of the first conveyor belt 1 and a slider 504 threadedly connected to the screw rod 503, the screw rod 503 is arranged on the side of the first conveyor belt 1, and the screw rod 503 is connected to a third driving motor 505 that drives it to move, and the third driving motor 505 is fixed to the side surface of the first conveyor belt 1 by bolts; the slider 504 is provided with a first telescopic rod 501 perpendicular to the conveying direction of the first conveyor belt 1, and the end of the first telescopic rod 501 is a stopper 502; the two stoppers 502 are relatively arranged at the upper part of the first conveyor belt 1; the screw rod 503 and the first telescopic rod 501 are connected to the third driving motor 505 by bolts. The motor 505 is connected, wherein the screw rod 503 can move along the transmission direction of the first conveyor belt 1, and the first telescopic rod 501 can be telescopic in the vertical direction of the transmission direction of the first conveyor belt 1; the two stoppers 502 are mutually fitted with any corner of the peripheral surface of the supporting frame 3; the fitting surface is provided with a rubber buffer pad; the two stoppers 502 jointly clamp the supporting frame 3 under the action of the first telescopic rod 501 and perform positioning and deviation correction on it; the screw rod 503 can move along the transmission direction of the first conveyor belt 1, and the first telescopic rod 501 can telescopically move in the vertical direction of the transmission direction of the first conveyor belt 1, so that the two stoppers 502 jointly clamp the supporting frame 3 and move along the transmission direction of the first conveyor belt 1;

[0055] The guide bracket 9 is composed of two pieces, which are symmetrically and vertically fixed on the upper part of the driving member 500 on both sides of the first conveyor belt 1. The spacing between the two guide brackets 9 gradually decreases toward the transmission direction of the first conveyor belt 1 until they abut against the edge 302 surface of the matching frame 3; each guide bracket 9 is vertically provided with a plurality of rollers 10, and the axial direction of each roller 10 is parallel to the side surface of the matching frame 3; the tops of the two guide brackets 9 are evenly spaced with first guide blocks 11; the first guide blocks 11 abut against the edge 302 surface of the matching frame 3; the driving member 500 and the guide bracket 9 in the adjustment and positioning unit 5 jointly clamp the matching frame 3 and perform positioning, deviation correction and adjustment on it. The distance sensor 17 and the adjustment and positioning unit 5 are both electrically connected to the central control unit.

[0056] Among them, the top ends of the parallel spacing sections of the two guide brackets 9 are welded and fixed with first guide blocks 11, and the two first guide blocks 11 are arranged along the length direction of the first conveyor belt 1 and cooperate with the matching frame 3; the U-shaped back sides of each positioning opening 404 are fixedly provided with second guide blocks 12 on the upper surface of the turntable 402, and when the turntable 402 rotates a certain angle, when any positioning opening 404 corresponds to the first conveyor belt 1, the adjacent first guide blocks 11 and second guide blocks 12 are on the same straight line; the matching frame 3 will move toward the positioning opening 404 under the action of the first conveyor belt 1 and enter a section of the parallel spacing between the two guide brackets 9; at this time, the two first guide blocks 11 on the guide bracket 9 are in contact with the surface of the edge 302 of the matching frame 3, and the first guide blocks 11 cooperate with the edge 302 to position the matching frame 3 again before entering the positioning opening 404, so as to ensure that the matching frame 3 can accurately enter the positioning 404; before the matching frame 3 enters the positioning port 404, the first driving motor 403 drives the turntable 402 to rotate to a suitable position until one of the positioning ports 404 corresponds to the transport end point of the first conveyor belt 1, and the two second guide blocks 12 on both sides of the positioning port 404 correspond to the two first guide blocks 11 one by one and are located on the same straight line, which can ensure that the subsequent matching frame 3 accurately enters the positioning port 404. Although there is a distance between the first guide block 11 and the second guide block 12, the width of the matching frame 3 is much larger than this gap. Driven by the first conveyor belt 1, even if one end of the matching frame 3 is not abutted by the second guide block 12 after detaching from the bracket 9, the first guide block 11 can still guide the matching frame 3 until the matching frame 3 and the second guide block 12 abut and cooperate with each other, which will not affect the movement direction and position of the matching frame 3, thereby ensuring the stability of the entire device during operation.

[0057] Among them, the turntable 402 is provided with a number of limiting members corresponding to the positioning openings 404, the limiting members cooperate with the matching frame 3 and limit the matching frame 3 in the positioning openings 404; the limiting members include: a movable block 13 is provided on the upper surface of the turntable 402 at the bottom edge of the U-shape of each positioning opening 404, and an electromagnet 14 is provided on the lower surface of the turntable 402 to cooperate with the movable block 13, the shape of the movable block 13 is adapted to the gap 304 between the edge 302 of the matching frame 3 and the matching frame body 301, the matching frame 3 is limited, the electromagnet 14 controls the movable block 13 to enter or leave the gap 304 when the power is turned on and off, and the second guide block 12 cooperates with the movable block 13 to limit the matching frame 3 in the positioning opening 404; when the turntable 402 rotates, the matching frame 3 is prevented from escaping from the positioning opening 404 under the action of centrifugal force, ensuring that the matching frame 3 can be stably in the positioning opening 404, thereby improving the stability of the system when working.

[0058] The upper surface of the base 401 is provided with a boss 15 protruding from the surface thereof, and the boss 15 is within the movement trajectory of the turntable 402; the weighing device 405 is embedded in the boss 15, and the upper surface of the weighing device 405 is in the same horizontal plane as the upper surface of the boss 15, and there is a slope between the surface of the boss 15 and the surface of the base 401. When the turntable 402 drives the matching frame 3 to be transferred to the upper surface of the weighing device 405, the matching frame 3 is vertically lifted upward for a distance under the action of the boss 15, which is conducive to the bottom surface of the matching frame 3 smoothly entering from the surface of the base 401 to the surface of the boss 15; the matching frame 3 is driven by the turntable 402 to move toward When the weighing device 405 rotates in a certain direction, the bottom surface of the matching frame 3 first contacts with the boss 15. Since there is a slope between the surface of the boss 15 and the surface of the base 401, the boss 15 will not hinder the movement of the matching frame 3. When the bottom end surface of the matching frame 3 moves completely to the upper surface of the weighing device 405, the matching frame 3 is lifted vertically upward for a certain distance under the action of the slope, which can prevent the movable block 13 from vertically abutting the surrounding edge 302 to generate an upward thrust on the matching frame 3, thereby avoiding the error generated when the weighing device 405 weighs the matching frame 3, and improving the accuracy of the weighing device 405 weighing the matching frame 3.

[0059] In addition, a distance sensor 17 is provided above the first conveyor belt 1 (the distance sensor may be an infrared ranging sensor, which is blocked in the figure and not shown). The distance sensor 17 is fixed on the inner side of an inverted U-shaped support frame, and the support frame is fixed by bolts and erected above the first conveyor belt 1. The distance sensor 17 is provided in front of the deviation correction unit 8, and the detection range of the distance sensor 17 covers the width of the first conveyor belt 1. The distance sensor 17 and the deviation correction unit 8 are both electrically connected to the central control unit.

[0060] The matching frame 3 of the present invention is used in the present weighing and transferring automation system; it includes a matching frame body 301, the matching frame body 301 is a rectangular frame with a large upper opening, a small bottom wall, a rectangular horizontal cross section, and a trapezoidal vertical cross section; the matching frame wall at the upper opening of the matching frame body 301 is turned outward 180° to form a surrounding edge 302, and a gap 304 is formed between the surrounding edge 302 and the matching frame body 301, and a plurality of ribs are arranged in the gap 304 to connect the surrounding edge 302 and the matching frame body 301, and the plurality of ribs are evenly vertically arranged and extend outwardly from the gap 304 to form a plurality of third guide blocks 16; the length between two adjacent third guide blocks 16 is a gap 303, and the length of the gap 303 is adapted to the length of the first guide block 11 and the second guide block 12.

[0061] The system of the present invention detects the specific placement position and the distance between the supporting frames 3 through the distance sensor 17 (the detection principle is the prior art and will not be expanded in this embodiment), and the correction unit 8 and the adjustment and positioning unit 5 automatically correct and adjust the position of the supporting frame 3 to ensure that the supporting frame 3 is accurately adjusted to the predetermined position. With the cooperation of the transfer unit 4, the supporting frame 3 is accurately sent to the positioning port 404, and then accurately weighed by the weighing device 405. Finally, the unloading unit 6 pushes the supporting frame 3 onto the second conveyor belt 2 for unloading, completing a weighing and transporting process; the above process is automatically completed by the central control unit according to the preset program. Under the control of the central control unit, multiple supporting frames 3 filled with tobacco leaves are continuously and automatically weighed, stably transported and unloaded.

[0062] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A weighing and transporting system, characterized in that: It includes: A first conveyor belt (1), a second conveyor belt (2), and a transfer unit (4) therebetween; The transfer unit (4) comprises a base (401) and a turntable (402) arranged above the base (401); the upper surface of the base (401) is on the same horizontal plane as the upper surfaces of the first conveyor belt (1) and the second conveyor belt (2); a weighing device (405) and a discharge unit (6) are also arranged on the upper surface of the base (401); the discharge unit (6) faces the conveying direction of the second conveyor belt (2); The turntable (402) is in the shape of a circular disk, and a plurality of U-shaped openings are provided on the edge of the circumferential wall of the turntable (402) as positioning openings (404) adapted to the matching frame (3); the turntable (402) is connected to a first driving motor (403) provided on the lower surface of the base (401).

2. The weighing and transporting system according to claim 1, characterized in that: A distance sensor (17), a deviation correction unit (8) and an adjustment and positioning unit (5) are sequentially arranged in the direction from the first conveyor belt (1) to the transfer unit (4); the distance sensor (17) is arranged above the first conveyor belt (1) and on the inner wall of an inverted U-shaped support frame spanning the first conveyor belt (1).

3. The weighing and transporting system according to claim 2, characterized in that: The correction unit (8) comprises: a support shell (801), a second drive motor (802) at the center of the upper wall surface of the support shell (801), and a support plate (803) on the inner side of the support shell (801), wherein the support shell (801) is in an inverted U shape and spans across the first conveyor belt (1), the second drive motor (802) is connected to the support plate (803), and the support plate (803) is connected to a movable bracket (805) via a third telescopic rod (804), wherein the movable bracket (805) is in an inverted U shape and is horizontally arranged above the first conveyor belt (1); both ends of the inverted U shape of the movable bracket (805) are provided with telescopic blocks (806), and the telescopic blocks (806) are provided with horizontal inward card blocks (807).

4. The weighing and transporting system according to claim 2, characterized in that: The adjusting and positioning unit (5) comprises a driving member (500) and a guide bracket (9); the driving member (500) is composed of two members, which are symmetrically arranged on both sides of the first conveyor belt (1); each driving member (500) comprises a screw rod (503) and a slider (504) connected thereto; the screw rod (503) is arranged along the conveying direction of the first conveyor belt (1), and the slider (504) is provided with a first telescopic rod (501) perpendicular to the conveying direction of the first conveyor belt (1), and the end of the first telescopic rod (501) is a stopper (502); the two stoppers (502) are arranged oppositely on the upper part of the first conveyor belt (1); the screw rod (503) and the first telescopic rod (501) are connected to a third driving motor (505), wherein the screw rod (503) can move forward and backward along the conveying direction of the first conveyor belt (1), and the first telescopic rod (501) can be telescoped in a direction perpendicular to the conveying direction of the first conveyor belt (1); The guide bracket (9) consists of two pieces, which are symmetrically and vertically fixedly arranged on the upper part of the driving member (500) on both sides of the first conveyor belt (1), and the distance between the two guide brackets (9) gradually decreases toward the transmission direction of the first conveyor belt (1) until they abut against the edge (302) surface of the matching frame (3); each guide bracket (9) is provided with a plurality of rollers (10) in the vertical direction, and the axial direction of each roller (10) is parallel to the side surface of the matching frame (3); the top ends of the two guide brackets (9) are evenly spaced with first guide blocks (11); the first guide blocks (11) abut against the edge (302) surface of the matching frame (3).

5. The weighing and transporting system according to claim 1, characterized in that: There are four positioning openings (404) evenly distributed on the edge of the circumferential wall of the turntable (402); the second guide blocks (12) are fixedly provided on the upper surface of the turntable (402) at the two back sides of the U-shape of each positioning opening (404); the second guide blocks (12) are in contact with the surface of the edge (302) of the matching frame (3); a movable block (13) is provided on the upper surface of the turntable (402) at the bottom edge of the U-shape of each positioning opening (404), and an electromagnet (14) matched with the movable block (13) is provided on the lower surface of the turntable (402); the shape of the movable block (13) is adapted to the gap (304) between the edge (302) of the matching frame (3) and the matching frame body (301).

6. The weighing and transporting system according to claim 1, characterized in that: The surface of the base (401) is provided with a boss (15) protruding from the surface thereof, the weighing device (405) is embedded in the boss (15), and the upper surface of the weighing device (405) and the upper surface of the boss (15) are in the same horizontal plane; the boss (15) is rectangular and matches the bottom surface of the matching frame (3).

7. The weighing and transporting system according to claim 1, characterized in that: The unloading unit (6) comprises a second telescopic rod (601) and a push plate (602) arranged at the end of the second telescopic rod (601); the second telescopic rod (601) is arranged on the lower surface of the base (401); a slit (406) is opened on the wall of the base (402) along the center line of the conveying direction of the second conveyor belt (2); the push plate (602) passes through the slit (406) and abuts against the wall surface of the matching frame (3).

8. The weighing and transporting system according to claim 1, characterized in that: The first conveyor belt (1) and the transfer unit (4), as well as the second conveyor belt (2) and the transfer unit (4) are connected via a pallet (7).

9. The weighing and transporting system according to claim 6, characterized in that: The matching frame (3) comprises a frame body (301), wherein the frame body (301) is a frame with a rectangular upper opening and a rectangular bottom wall, wherein the upper opening rectangle is larger than the bottom wall rectangle, and the horizontal cross section is a rectangle and the vertical cross section is a trapezoid; the frame wall of the upper opening of the frame body (301) is turned outward by 180° to form a surrounding edge (302), a gap (304) is formed between the surrounding edge (302) and the frame body (301), a plurality of ribs are arranged in the gap (304) to connect the surrounding edge (302) and the frame body (301), and the plurality of ribs are evenly vertically arranged and extend outwardly from the gap (304) to form a plurality of third guide blocks (16); the length between two adjacent third guide blocks (16) is a gap (303), and the length of the gap (303) is adapted to the length of the first guide block (11) and the second guide block (12).

10. Use of the weighing and transporting system according to any one of claims 1 to 9 for weighing and transporting tobacco.

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