Frog weight grader

Abstract

The invention relates to the field of frog grading, in particular to a frog weight grading machine. Comprising a rack, and a push rod device, an unloading device and a pressing device are arranged above the rack; the push rod device comprises a driving structure, a first spherical hinge, a spherical hinge base, a hinge connecting rod and a second spherical hinge. The discharging device comprises a support, a weighing sensor and a tray. The pressing device comprises four pressing mechanisms which are symmetrically arranged; the pressing mechanism comprises a supporting structure, a double-shaft air cylinder, a shaft connecting plate and two pressing rods which are oppositely arranged left and right. The frog grading device has the advantages of short time consumption, high grading precision, high efficiency, reduced labor cost, low operation difficulty, small occupied area, simple structure and the like, meets the actual frog grading requirement, and has a better application prospect.

Description

Technical Field

[0001] The invention relates to the field of frog grading, in particular to a frog weight grading machine. Background Art

[0002] The scientific name of frog is Pleurotus nigromaculata, which belongs to the amphibian family Ranidae. It is widely distributed in my country, and artificial breeding has become popular. As the scale of frog breeding gradually increases, its primary processing equipment needs to be updated.

[0003] At present, the frog grading process is still mainly manual, and the traditional manual weighing and grading method is time-consuming and inefficient, which greatly limits the development of frog breeding. Therefore, the development of a frog grading machine can reduce the frog grading time, which is of great significance to improving the quality of frog products and regulating the frog market. The present invention designs a frog weight grading machine, which has the advantages of short time consumption, high grading accuracy, high efficiency, reduced labor cost, small footprint, simple structure, etc., meets actual production needs, and has good application prospects. Summary of the invention

[0004] Based on the above, the object of the present invention is to provide a frog weight grader which has high precision, short time consumption, high efficiency and simple structure and is used in frog grading.

[0005] The technical solution of the present invention is:

[0006] A frog weight grading machine, characterized in that it comprises: a frame, a push rod device, a discharge device, and a pressing device are arranged above the frame; the push rod device comprises a driving mechanism, a ball hinge 1, a ball hinge seat, a hinge connecting rod, and a ball hinge 2; the ball hinge seat and the ball hinge 2 are connected by threads on the hinge connecting rod; the driving mechanism comprises a single-axis cylinder and a support plate; the support plate is placed above the frame; the discharge device comprises a bracket, a weighing sensor, and a tray; the bracket is installed in four groove blocks, and the four groove blocks are respectively installed and fixed around the frame; the tray is placed above the weighing sensor , fixedly connected by bolts; the pressing device includes four symmetrically placed pressing mechanisms; the pressing mechanism includes a supporting structure, a double-axis cylinder, an axis connecting plate, and two left and right opposite pressing rods, and the double-axis cylinder is placed above the frame by bolt connection; the supporting structure includes a linear bearing seat, a linear bearing, and a bearing seat support plate; the bearing seat support plate is installed and fixed above the frame; the linear bearing seat is installed above the bearing seat support plate; the linear bearing is installed in the internal hole of the linear bearing seat; the pressing rod passes through the linear bearing and is connected and fixed to the axis connecting plate; the supporting structure plays a guiding role.

[0007] A PLC is placed above the support plate, and the PLC is connected with the weighing sensor, the single-axis cylinder and the double-axis cylinder through electric wires.

[0008] The support plate is provided with threaded holes, and is connected with the single-axis cylinder and the frame by bolts.

[0009] The bracket is surrounded by a cylinder connected to the ribs extending from the four sides of the bracket; annular grooves are provided at both ends of the cylinder; a threaded hole is provided on the surface of the bracket, one side of which coincides with the bottom surface of the base of the ball hinge 2, and the other side is connected to the weighing sensor and fixed by bolts.

[0010] A semi-cylindrical limiting groove is provided on the upper part of the groove block, and the cylinders around the bracket are placed in the limiting groove, and the length of the limiting groove is equal to the length of the cylinder; two grooves are provided on the side of the groove block to ensure that the ribs cannot collide with the side of the groove block.

[0011] The surface of one side of the pressing rod is provided with a thread line and is connected to the shaft connecting plate by bolts; the other side of the pressing rod is a flat surface, which facilitates the pressing rod to be tangent to the annular groove in the cylinder when pressing the bracket.

[0012] A slot hole is provided inside the linear bearing seat, and a hole elastic retaining ring is installed in the slot hole; one end of the linear bearing is fitted with the inner surface of the linear bearing seat, and the other end is fitted with the surface of the hole elastic retaining ring.

[0013] Preferably, the PLC adopts FX3U Mitsubishi series PLC.

[0014] Preferably, the weighing sensor is a cantilever beam weighing sensor.

[0015] In summary, the beneficial effects of the present invention are:

[0016] 1. The present invention uses a weighing sensor to weigh online, with high grading accuracy, and can perform more detailed grading of frogs;

[0017] 2. The frogs are placed on the tray, and the PLC receives the signal to control the cylinder to push the tray to flip, and the frogs are graded, with short grading time and high grading efficiency;

[0018] 3. The grading standards can be switched through the control system, with a wide grading range;

[0019] 4. The whole frog weight grader has a compact and simple structure, is not easy to damage, and takes up little space;

[0020] 5. The whole frog weight grader has a simple working principle, is easy to operate, and has low technical requirements for operators; BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the frog weight grading machine of the present invention.

[0022] Figure 2 It is a partial schematic diagram of the push rod device of the frog weight classifier of the present invention.

[0023] Figure 3 It is an exploded view of the pressing device of the frog weight grader of the present invention.

[0024] In the figure: 1. frame; 2. driving mechanism; 3. push rod device; 4. pressing device; 5. supporting structure; 6. unloading device; 7. groove block; 701. limit groove; 702. groove block; 8. pressing mechanism; 9. shaft connecting plate; 10. PLC; 11. support plate; 12. ball hinge 1; 13. hinge connecting rod; 14. bracket; 141. cylinder; 142. annular groove; 143. rib; 15. weighing sensor; 16. tray; 17. ball hinge 2; 18. ball hinge seat; 19. single-axis cylinder; 20. pressing rod; 201. flat surface; 21. bearing seat support plate; 22. linear bearing seat; 221. slot hole; 23. linear bearing; 24. elastic retaining ring for hole; 25. double-axis cylinder. DETAILED DESCRIPTION

[0025] Now combined with the attached Figure 1 ——3 Describe the embodiments of the present invention in detail and further explain the present invention in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] A frog weight grading machine, characterized in that it comprises: a frame 1, a push rod device 3, a discharge device 6, and a pressing device 4 are arranged above the frame 1; the push rod device 3 comprises a driving mechanism 2, a ball hinge 12, a ball hinge seat 18, a hinge connecting rod 13, and a ball hinge 2 17; the ball hinge seat 18 and the ball hinge 2 17 are connected by threads on the hinge connecting rod 13; the driving mechanism 2 comprises a single-axis cylinder 19 and a support plate 11; the support plate 11 is placed above the frame 1; the discharge device 6 comprises a bracket 14, a weighing sensor 15, and a tray 16; the bracket 14 is installed in four groove blocks 7, and the four groove blocks 7 are respectively installed and fixed around the frame 1; the tray 16 is placed on the weighing sensor The pressing device 4 includes four symmetrically placed pressing mechanisms 8; the pressing mechanism 8 includes a supporting structure 5, a dual-axis cylinder 25, an axis connecting plate 9, and two left-right opposite pressing rods 20, and the dual-axis cylinder 25 is placed above the frame 1 by bolt connection; the supporting structure 5 includes a linear bearing seat 22, a linear bearing 23, and a bearing seat support plate 21; the bearing seat support plate 21 is installed and fixed above the frame 1; the linear bearing seat 22 is installed above the bearing seat support plate 21; the linear bearing 23 is installed in the internal hole of the linear bearing seat 22; the pressing rod 20 passes through the linear bearing 23 and is connected and fixed to the axis connecting plate 9; the supporting structure 5 plays a guiding role.

[0027] The PLC 10 is placed above the support plate 11 , and the PLC 10 is connected to the weighing sensor 15 , the single-axis cylinder 19 and the double-axis cylinder 25 through electric wires.

[0028] The support plate 11 is provided with threaded holes, which are connected to the single-axis cylinder 19 and the frame 1 by bolts.

[0029] The bracket 14 is surrounded by a cylinder 141 which is connected to ribs 143 extending from the four sides of the bracket 14; annular grooves 142 are provided at both ends of the cylinder 141; a threaded hole is provided on the surface of the bracket 14, one side of which coincides with the bottom surface of the base of the ball hinge 17, and the other side is connected to the weighing sensor 15 and fixed by bolts.

[0030] A semi-cylindrical limiting groove 701 is provided on the upper part of the groove block 7, and the cylinder 141 around the bracket 14 is placed in the limiting groove 701, and the length of the limiting groove 701 is equal to the length of the cylinder 141; two grooves 702 are provided on the side of the groove block 7 to ensure that the rib 143 cannot collide with the side of the groove block 7.

[0031] The surface of one side of the pressing rod 20 is provided with a thread line and is connected to the shaft connecting plate 9 by bolts; the other side of the pressing rod 20 is a flat surface 201, which facilitates the pressing rod 20 to be tangent to the annular groove 142 in the cylinder 141 when pressing the bracket 14.

[0032] A slot hole 221 is provided inside the linear bearing seat 22, and a hole elastic retaining ring 24 is installed in the slot hole 221; one end of the linear bearing 23 is in contact with the inner surface of the linear bearing seat 22, and the other end is in contact with the surface of the hole elastic retaining ring 24.

[0033] The steps to use the frog weight grader are as follows:

[0034] a. Place the grader on level ground;

[0035] b. Turn on the switch of the weighing sensor and the weighing sensor starts working;

[0036] c. Power on the PLC, determine the grading standard, and input the grading program into the PLC;

[0037] d. Put the frog on the tray, and the load cell starts weighing. Then the sensor transmits the weight signal to the PLC.

[0038] e. PLC processes the signal, determines the level of the frog, and determines the flipping direction of the tray;

[0039] f, start grading, PLC controls the push rod of the double-axis cylinder in the pressing mechanism to push out, and the pressing rod presses the cylinder on the bracket. The pressing mechanism is the pressing mechanism for the direction in which the frog needs to be dumped;

[0040] g. Under the control of PLC, the single-axis cylinder on the frame pushes out the push rod, the tray flips around the cylinder held down by the pressing mechanism, and the frog slides along the tray into the required grading box;

[0041] h, then the single-axis cylinder push rod retracts, the single-axis cylinder push rod retracts to its original position, the push rod of the double-axis cylinder in the pressing mechanism retracts, and finally retracts to its original position;

[0042] i. Set the grading interval as needed and repeat steps d~h to grade the frogs.

[0043] In the present invention, the principle of the frog weight grader is: the grader is divided into a control part and a mechanical part. The control part is mainly composed of Mitsubishi PLC, which receives and analyzes the signal sent by the weighing sensor and controls each cylinder according to the designed grading program. The mechanical part is mainly composed of three major devices: a push rod device, a discharge device, and a pressing device. The PLC controls the cylinder push rod in one of the pressing mechanisms in the pressing device to extend, and the pressing rod presses the cylinder of the bracket, so that the discharge device can rotate around the cylinder. The PLC continues to control the single-axis cylinder push rod on the base to push out, so that the discharge device is flipped in the direction of the pressing mechanism, thereby achieving the purpose of grading.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A frog weight classifier, characterized in that: include: A frame (1), wherein a push rod device (3), a discharge device (6), and a pressing device (4) are arranged above the frame (1); the push rod device (3) comprises a driving mechanism (2), a first ball hinge (12), a ball hinge seat (18), a hinge connecting rod (13), and a second ball hinge (17); the ball hinge seat (18) and the second ball hinge (17) are connected via threads on the hinge connecting rod (13); the driving mechanism (2) comprises a single-axis cylinder (19) and a support plate (11); the support plate (11) is placed above the frame (1); the discharge device (6) comprises a bracket (14), a weighing sensor (15), and a tray (16); the bracket (14) is installed in four groove blocks (7), and the four groove blocks (7) are respectively installed and fixed around the frame (1); the tray (16) is placed on the weighing sensor (15). The pressing device (4) comprises four symmetrically placed pressing mechanisms (8); the pressing mechanism (8) comprises a supporting structure (5), a dual-axis cylinder (25), a shaft connecting plate (9), and two left-right opposite pressing rods (20); the dual-axis cylinder (25) is placed above the frame (1) by bolt connection; the supporting structure (5) comprises a linear bearing seat (22), a linear bearing (23), and a bearing seat supporting plate (21); the bearing seat supporting plate (21) is fixedly mounted above the frame (1); the linear bearing seat (22) is mounted above the bearing seat supporting plate (21); the linear bearing (23) is mounted in an internal hole of the linear bearing seat (22); the pressing rod (20) passes through the linear bearing (23) and is connected and fixed to the shaft connecting plate (9); the supporting structure (5) plays a guiding role.

2. The frog weight classifier according to claim 1, characterized in that: A PLC (10) is placed above the support plate (11), and the PLC (10) is connected to a weighing sensor (15), a single-axis cylinder (19), and a double-axis cylinder (25) via electric wires.

3. The frog weight classifier according to claim 1, characterized in that: The support plate (11) is provided with a threaded hole, and is connected to the single-axis cylinder (19) and the frame (1) by means of bolts.

4. The frog weight classifier according to claim 1, characterized in that: The bracket (14) is surrounded by a cylinder (141) which is connected to ribs (143) extending from the four sides of the bracket (14); annular grooves (142) are provided at both ends of the cylinder (141); a threaded hole is provided on the surface of the bracket (14), one side of which coincides with the bottom surface of the base of the second ball hinge (17), and the other side is connected to the weighing sensor (15) and fixed by bolts.

5. The frog weight classifier according to claim 1, characterized in that: A semi-cylindrical limiting groove (701) is provided on the upper part of the groove block (7), and the cylindrical body (141) around the bracket (14) is placed in the limiting groove (701), and the length of the limiting groove (701) is equal to the length of the cylindrical body (141); two grooves (702) are provided on the side of the groove block (7) to ensure that the rib (143) cannot collide with the side of the groove block (7).

6. The frog weight classifier according to claim 1, characterized in that: A threaded line is provided on one side of the pressing rod (20) and is connected to the shaft connecting plate (9) by means of bolts; the other side of the pressing rod (20) is a flat surface (201) so that the pressing rod (20) can be tangent to the annular groove (142) in the cylinder (141) when pressing the bracket (14).

7. The frog weight classifier according to claim 1, characterized in that: A slotted hole (221) is provided inside the linear bearing seat (22), and a hole elastic retaining ring (24) is installed in the slotted hole (221); one end of the linear bearing (23) is in contact with the inner surface of the linear bearing seat (22), and the other end is in contact with the surface of the hole elastic retaining ring (24).

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