Frog weight grader

Abstract

The utility model 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 being short in time consumption, high in grading precision, high in efficiency, low in operation difficulty, small in occupied area, simple in structure and the like, reduces labor cost, meets actual frog grading requirements, and has good application prospects.

Description

TECHNICAL FIELD

[0001] The utility model relates to frog grading field, concretely is a kind of frog weight grading machine. BACKGROUND

[0002] Rana nigromaculata, belonging to amphibian frog family, is widely distributed in China. In many places in China, there is the habit of eating frogs, and the market demand for frogs is large. Frog breeding is profitable, effective and has good development prospects. Artificial breeding has emerged. With the gradual increase of frog breeding scale, its primary processing equipment needs to be updated.

[0003] At present, frog grading process in China is mainly manual. Traditional manual weighing and grading method is time-consuming and low in efficiency, which greatly limits the development of frog breeding. Therefore, it is of great significance to develop frog grading machine to reduce frog grading time and improve frog product quality and standardize frog market. The utility model designs a frog weight grading machine, which has the advantages of short time consumption, high grading precision, high efficiency, low labor cost, small occupied area and simple structure, meets the actual production needs and has good application prospect. UTILITY MODEL CONTENT

[0004] Based on the above, the purpose of the utility model is to provide a frog weight grading machine with high precision, short time consumption, high efficiency and simple structure applied in frog grading.

[0005] The technical scheme of the utility model is:

[0006] A frog weight grading machine, characterized in that it comprises: a rack, a push rod device, a discharging device and a pressing device arranged above the rack; the push rod device comprises a driving mechanism, a spherical hinge one, a spherical hinge seat, a hinge connecting rod and a spherical hinge two; the spherical hinge seat and the spherical hinge two are connected through threads on the hinge connecting rod; the driving mechanism comprises a single-shaft air cylinder and a support plate; the support plate is arranged above the rack; the discharging device comprises a bracket, a weighing sensor and a tray; the bracket is installed in four groove blocks, and the four groove blocks are fixedly installed around the rack; the tray is arranged above the weighing sensor and fixedly connected through bolts; the pressing device comprises four symmetrically arranged pressing mechanisms; the pressing mechanism comprises a support structure, a double-shaft air cylinder, a shaft connecting plate and two left and right pressing rods; the double-shaft air cylinder is arranged above the rack through bolt connection; the support structure comprises a linear bearing seat, a linear bearing and a bearing seat support plate; the bearing seat support plate is fixedly installed above the rack; the linear bearing seat is installed above the bearing seat support plate; the linear bearing is installed in the inner hole of the linear bearing seat; the pressing rod is fixedly connected with the shaft connecting plate through the linear bearing; the support structure plays a guiding role.

[0007] The PLC is placed above the support plate, and the PLC is connected with the weighing sensor, the single-shaft air cylinder and the double-shaft air cylinder through wires.

[0008] The support plate is provided with threaded holes, and is connected with the single-shaft air cylinder and the rack through bolts.

[0009] The periphery of the support frame is provided with a cylinder connected with the ribs extending from the four sides of the support frame, and the two ends of the cylinder are provided with annular grooves; the surface of the support frame is provided with threaded holes, one side of which coincides with the bottom surface of the base of the ball hinge II, and the other side is connected with the weighing sensor and fixed through bolts.

[0010] The upper part of the groove block is provided with a semi-cylindrical limiting groove, the cylinder around the support frame is placed in the limiting groove, and the length of the limiting groove is equal to the length of the cylinder; the side surface of the groove block is provided with two grooves to prevent the ribs from colliding with the side surface of the groove block.

[0011] The side surface of the pressing rod is provided with threaded lines, and the other side of the pressing rod is a flat surface, so that the pressing rod can be tangent to the annular grooves in the cylinder when the pressing rod presses the support frame.

[0012] The inner part of the linear bearing seat is provided with a slot hole, and the hole is installed in the slot hole through an elastic check ring; one end of the linear bearing is attached to the inner surface of the linear bearing seat, and the other end is attached to the surface of the hole elastic check ring.

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

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

[0015] As described above, the frog weight grading machine has the following advantages:

[0016] 1. The weighing sensor is used for online weighing, the grading precision is high, and the frog can be graded more finely.

[0017] 2. The frog is placed on the tray, the PLC receives a signal to control the air cylinder to push the tray to overturn, and the frog is graded, the grading time is short, and the grading efficiency is high.

[0018] 3. The grading standard can be switched through the control system, and the grading range is wide.

[0019] 4. The frog weight grading machine has compact and simple structure, is not easy to be damaged, and occupies small space.

[0020] 5. The working principle of the frog weight grading machine is simple, the operation is convenient, and the technical requirement for the operator is low. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole schematic view of the frog weight grading machine.

[0022] Figure 2 It is the partial schematic view of the frog weight grading machine push rod device.

[0023] Figure 3 It is the exploded view of the frog weight grading machine pressing device.

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

[0025] The embodiments of the present application will be described in detail below with reference to the drawings. Figure 1 The embodiments of the present application will be described in detail below with reference to the drawings.

[0026] A frog weight grading machine, characterized in that it comprises a frame 1, a push rod device 3, a discharging device 6 and a pressing device 4 arranged above the frame 1; the push rod device 3 comprises a driving mechanism 2, a spherical hinge I 12, a spherical hinge seat 18, a hinge connecting rod 13 and a spherical hinge II 17; the spherical hinge seat 18 and the spherical hinge II 17 are connected through threads on the hinge connecting rod 13; the driving mechanism 2 comprises a single-shaft air cylinder 19 and a support plate 11; the support plate 11 is arranged above the frame 1; the discharging device 6 comprises a support 14, a weighing sensor 15 and a tray 16; the support 14 is installed in four groove blocks 7 which are respectively fixed around the frame 1; the tray 16 is arranged above the weighing sensor 15 and fixed by bolts; the pressing device 4 comprises four symmetrical pressing mechanisms 8; the pressing mechanism 8 comprises a support structure 5, a double-shaft air cylinder 25, a shaft connecting plate 9 and two left and right pressing rods 20; the double-shaft air cylinder 25 is arranged above the frame 1 by bolt connection; the support structure 5 comprises a linear bearing seat 22, a linear bearing 23 and a bearing seat support plate 21; the bearing seat support plate 21 is fixedly installed 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 inner hole of the linear bearing seat 22; the pressing rod 20 is connected and fixed with the shaft connecting plate 9 through the linear bearing 23; the support structure 5 plays a guiding role.

[0027] A PLC 10 is arranged above the support plate 11; the PLC 10 is connected with the weighing sensor 15, the single-shaft air cylinder 19 and the double-shaft air cylinder 25 through wires.

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

[0029] The support 14 is provided with a cylindrical body 141 around which a rib 143 extending from four sides of the support 14 is connected; the cylindrical body 141 is provided with an annular groove 142 at both ends; the surface of the support 14 is provided with threaded holes, one of which coincides with the bottom surface of the base of the spherical hinge II 17 and the other of which is connected with the weighing sensor 15 by bolt connection.

[0030] The groove block 7 is provided with a semicylindrical limiting groove 701 at the upper part; the cylindrical body 141 around the support 14 is put into the limiting groove 701; the length of the limiting groove 701 is equal to the length of the cylindrical body 141; the groove block 7 is provided with two grooves 702 on the side surface to ensure that the rib 143 cannot collide with the side surface of the groove block 7.

[0031] The one side surface of the pressing rod 20 is provided with screw threads, and is connected with the shaft connecting plate 9 through bolts; the other side of the pressing rod 20 is a flat surface 201, which is convenient for the pressing rod 20 to press the support 14 and be tangent to the annular groove 142 in the cylinder 141.

[0032] The linear bearing seat 22 is internally provided with a slot hole 221, and the hole elastic stopper 24 is installed in the slot hole 221; one end of the linear bearing 23 is attached to the inner surface of the linear bearing seat 22, and the other end is attached to the surface of the hole elastic stopper 24.

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

[0034] a, place the grader on the horizontal ground;

[0035] b, turn on the switch of the weighing sensor, and the weighing sensor starts to work;

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

[0037] d, place the frog on the tray, and the weighing sensor starts to weigh, and then the sensor transmits the weight signal to the PLC;

[0038] e, the PLC processes the signal to determine the grade of the frog and the overturning direction of the tray;

[0039] f, start grading, the PLC controls the push rod of the double-shaft air cylinder in the pressing mechanism to push out, and the pressing rod presses the cylinder on the support, and the pressing mechanism is the pressing mechanism required to dump the frog in the required direction;

[0040] g, the single-shaft air cylinder on the rack pushes out the push rod under the control of the PLC, the tray is overturned around the cylinder pressed by the pressing mechanism, and the frog slides into the required grading box along the tray;

[0041] h, then the push rod of the single-shaft air cylinder is retracted, the push rod of the single-shaft air cylinder is retracted to the original position, the push rod of the double-shaft air cylinder in the pressing mechanism is retracted, and finally retracted to the original position;

[0042] i, set the grading interval time according to the requirement, repeat steps d~h, and realize the grading of the frog.

[0043] The principle of the frog weight grading machine is that the grading machine is divided into a control part and a mechanical part as a whole.

[0044] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A frog weight grader characterized by, The application relates to a machine frame (1) provided with a push rod device (3), a discharging device (6) and a pressing device (4) above the machine frame (1); the push rod device (3) comprises a driving mechanism (2), a ball hinge I (12), a ball hinge seat (18), a hinge connecting rod (13) and a ball hinge II (17); the ball hinge seat (18) is connected with the ball hinge II (17) through threads on the hinge connecting rod (13); the driving mechanism (2) comprises a single-shaft air cylinder (19) and a supporting plate (11); the supporting plate (11) is arranged above the machine frame (1); the discharging device (6) comprises a support (14), a weighing sensor (15) and a tray (16); the support (14) is arranged in four groove blocks (7) which are respectively fixed on the periphery of the machine frame (1); the tray (16) is arranged above the weighing sensor (15) and is fixedly connected through bolts; the pressing device (4) comprises four symmetrical pressing mechanisms (8); the pressing mechanism (8) comprises a supporting structure (5), a double-shaft air cylinder (25), a shaft connecting plate (9) and two left and right pressing rods (20); the double-shaft air cylinder (25) is arranged above the machine frame (1) through 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 arranged on the machine frame (1); the linear bearing seat (22) is arranged above the bearing seat supporting plate (21); the linear bearing (23) is arranged in a hole in the linear bearing seat (22); the pressing rod (20) is fixedly connected with the shaft connecting plate (9) through the linear bearing (23); the supporting structure (5) plays a guiding role. A PLC (10) is arranged above the supporting plate (11) and is connected with the weighing sensor (15), the single-shaft air cylinder (19) and the double-shaft air cylinder (25) through wires.

2. The frog grader of claim 1, wherein: The supporting plate (11) is provided with threaded holes and is connected with the single-shaft air cylinder (19) and the machine frame (1) through bolts.

3. The frog grader of claim 1, wherein: The support (14) is provided with a cylinder (141) around the periphery and is connected with a rib (143) extending from four sides of the support (14); the cylinder (141) is provided with annular grooves (142) at two ends; the surface of the support (14) is provided with threaded holes, one side of which is coincident with the bottom surface of the base of the ball hinge II (17) and the other side is connected with the weighing sensor (15) through bolt connection.

4. The frog grader of claim 1, wherein: The groove block (7) is provided with a semicylindrical limiting groove (701) at the upper portion; the cylinder (141) around the periphery of the support (14) is arranged in the limiting groove (701); the length of the limiting groove (701) is equal to the length of the cylinder (141); the groove block (7) is provided with two grooves (702) on the side surface, so that the rib (143) cannot collide with the side surface of the groove block (7).

5. The frog grader of claim 1, wherein: ​ 6. The frog grader of claim 1, wherein: The side surface of the pressing rod (20) is provided with a thread line, and the shaft connecting plate (9) is connected through a bolt; the other side of the pressing rod (20) is a flat surface (201), which is convenient for the pressing rod (20) to press the support (14) and be tangent to the annular groove (142) in the cylinder (141).

7. The frog grader of claim 1, wherein: The inside of the linear bearing seat (22) is provided with a slot hole (221), and the hole elastic stop ring (24) is installed in the slot hole (221); one end of the linear bearing (23) is attached to the inner surface of the linear bearing seat (22), and the other end is attached to the surface of the hole elastic stop ring (24).

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