Weighing instrument

Abstract

A weighing instrument comprises a weighing station and a first frame body arranged adjacent to the weighing station, and the first frame body is provided with a clamping fixture and a conveying mechanism used for conveying a diamond to be weighed from the clamping position to the weighing station. At least two independent limiting seats are arranged on the disc body at intervals in the circumferential direction, and from the clamping position, diamonds to be weighed are placed on the limiting seats in the first direction (D1) from near to far according to specifications. According to the diamond weighing device, the clamping position is constructed through the connecting disc, the limiting seat is arranged on the disc body of the connecting disc, and the structure of the limiting seat can enable batches or a large number of diamonds to be weighed to be placed one by one; the diamonds can be conveyed to the weighing station after being clamped one by one at the clamping position by means of rotation of the driving mechanism, so that the weighing efficiency of the diamonds can be effectively improved, and the phenomenon that the diamonds are piled up is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing, in particular to a weighing instrument. Background Art

[0002] A weighing instrument refers to an electronic device that can convert into a digital display of weight and can store, count, and print weight data. Existing weighing instruments, such as the Chinese utility model patent "A Solid Full-automatic Weighing and Detecting Instrument" with the patent number 202221331029.4 (the authorized announcement number is CN218885101U), this weighing and detecting instrument includes a bottom plate, and a conveyor and a weighing device are successively and fixedly installed on the upper surface of the bottom plate. This weighing and detecting instrument can use a clamping jaw to pick up an item placed on the conveyor and move it to the weighing platform for weighing and detection. This type of instrument realizes the full-automatic weighing of objects. However, for the diamond industry, due to the characteristics of diamonds being small and expensive, if the above-mentioned weighing instrument is used to weigh diamonds, the following problems will be faced: 1. The volume of diamonds is small. When it is necessary to weigh a batch of diamonds with a large quantity, it is difficult to place the diamonds at intervals one by one on the conveyor, and then it is impossible to pick up and weigh each diamond one by one with the clamping jaw; 2. Due to the uncertain shape of diamonds, they may roll when moving along with the conveyor, causing unnecessary losses; 3. When the weighing data is in chaos, it is impossible to trace back to the source. Therefore, the above-mentioned weighing instrument still needs to be further improved when applied to the diamond industry. Summary of the Utility Model

[0003] The first technical problem to be solved by the utility model is to provide a weighing instrument that can better weigh diamonds in view of the above-mentioned current situation of the prior art.

[0004] The second technical problem to be solved by the utility model is to provide a weighing instrument that will not cause the loss of diamonds in view of the above-mentioned current situation of the prior art.

[0005] The third technical problem to be solved by the utility model is to provide a weighing instrument that can trace the weighing data in view of the above-mentioned current situation of the prior art.

[0006] The technical solution adopted by the utility model to solve the above first technical problem is as follows: This weighing instrument includes a weighing work position and a first frame body disposed adjacent to the weighing work position, and the first frame body is provided with:

[0007] A clamping fixture, which is used to clamp the diamond to be weighed;

[0008] A conveying mechanism, which is used to convey the diamond to be weighed from the clamping position to the weighing work position;

[0009] It is characterized in that:

[0010] The clamping position is constructed by a connecting disk, the connecting disk includes a disk body, and at least two independent limiting seats are circumferentially and spacedly arranged on the disk body. Starting from the clamping position, diamonds to be weighed are placed on each of the limiting seats in order of specification from near to far along a first direction (D1).

[0011] A driving mechanism is installed on the connecting disk and is used to apply a driving force to drive each of the limiting seats arranged on the disk body to rotate in a direction opposite to the first direction (D1), so as to successively rotate the weighed diamonds to the clamping position.

[0012] To solve the above-mentioned second technical problem, preferably, the limiting seat includes a bottom wall and a retaining wall connected to the bottom wall and higher than the bottom wall. The setting of the retaining wall can block the diamond when the diamond rolls, thus avoiding the loss of the diamond due to dropping.

[0013] To enable the limiting seat to move up and down relative to the disk body, preferably, a lifting mechanism is provided in the area opposite to the clamping position. The disk body has a hollow part, and a convex edge extends from the disk body towards the direction where the hollow part is located. The limiting seat is placed on the convex edge and can move up and down relative to the disk body by means of the driving force of the lifting mechanism. The setting of the lifting mechanism enables the limiting seat to rise to cooperate with the clamping fixture to clamp the diamond to be weighed in the limiting seat, thus avoiding interference between the clamping fixture and the disk body when the clamping fixture descends to clamp the diamond to be weighed.

[0014] To limit the lifting direction of the lifting mechanism on the limiting seat, preferably, the lifting mechanism includes a first driving source and a lifting rod connected to the first driving source and capable of moving up and down under the driving force of the first driving source. The lower surface of each limiting seat partially protrudes and surrounds to form a positioning groove. When the lifting rod is in the raised state, the upper end of the lifting rod is inserted into the positioning groove. According to actual needs, the first driving source can be a motor, a cylinder, etc., and the first driving source can drive the lifting rod directly or indirectly, so that the lifting rod can transfer the driving force of the first driving source to the limiting seat and enable the limiting seat to move up and down stably under the action of the positioning groove.

[0015] To solve the above-mentioned third technical problem, preferably, at least two placing grooves are circumferentially and spacedly arranged on the disk body. The placing grooves and the limiting seats are coaxially arranged and are arranged inside the limiting seats. Each limiting seat corresponds to one placing groove, and a two-dimensional code corresponding to the diamond to be weighed is placed in the placing groove. A code scanning module for scanning the two-dimensional code is provided above the placing groove. In this way, the weighing information of the diamond to be weighed can be recorded by scanning the diamond through the code scanning module, and when it is necessary to trace the information of a certain diamond to be weighed, it can be obtained only by scanning the code again.

[0016] To fix the code scanning module, preferably, a second frame is further included. The second frame is disposed opposite to the first frame, and the code scanning module is disposed on the second frame and faces the placement groove.

[0017] To transfer the diamond to be weighed from the clamping position to the weighing station, preferably, taking the plane where the weighing station is located as the XY plane, the transfer mechanism includes a first transfer part moving along the XY plane and a second transfer part moving along the Z-axis direction perpendicular to the XY plane. The second transfer part is connected to the first transfer part and can move along the XY plane under the drive of the first transfer part. The clamping fixture is connected to the second transfer part and can move along the Z-axis direction under the drive of the second transfer part. In this way, the biaxial movement of the clamping fixture can be realized: it can move along the XY plane and also along the Z-axis direction, and the moving direction of the clamping fixture can be controlled independently.

[0018] To realize the clamping of the diamond to be weighed by the clamping fixture, preferably, the clamping fixture includes at least two clamping arms and a second driving source. The clamping arms can move towards each other or away from each other under the driving force of the second driving source. When the clamping arms move towards each other, the clamping arms can clamp the diamond to be weighed; when the clamping arms move away from each other, the clamping arms can release the diamond to be weighed.

[0019] Compared with the prior art, the advantages of the present utility model are as follows:

[0020] 1. The clamping position is constructed through the connecting disk, and at least two independent limiting seats are arranged at intervals along the circumferential direction on the disk body of the connecting disk. The structure of the limiting seat can enable a batch or a relatively large number of diamonds to be weighed to be placed one by one;

[0021] 2. Then, with the driving force of the driving mechanism, each limiting seat arranged on the disk body can be driven to rotate in the direction opposite to the first direction D1, so as to rotate the weighed diamonds to the clamping position one by one. Through the clamping fixture and the transfer mechanism, after the diamonds are clamped one by one at the clamping position, they can be transferred to the weighing station, which can effectively improve the weighing efficiency of the diamonds and avoid the phenomenon of diamonds piling up. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0023] Figure 2 It is a schematic structural diagram of the transfer mechanism in an embodiment of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the clamping fixture in an embodiment of the present utility model;

[0025] Figure 4Schematic diagram of the structure of the limit seat in the embodiment of the present utility model;

[0026] Figure 5 Schematic diagram of the structure of the disc body in the embodiment of the present utility model;

[0027] Figure 6 Schematic diagram of the structure of the jacking mechanism when not raised in the embodiment of the present utility model;

[0028] Figure 7 Schematic diagram of the structure of the jacking mechanism when raised in the embodiment of the present utility model. Detailed implementation manners

[0029] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0030] As Figure 1-7 shown, the weighing instrument of this embodiment includes a weighing station 1 and a first frame 2 disposed adjacent to the weighing station 1. A clamping fixture 21 for clamping the diamond to be weighed and a conveying mechanism 22 for conveying the diamond to be weighed from the clamping position to the weighing station 1 are provided on the first frame 2.

[0031] Among them, as Figure 2-3 shown, the clamping fixture 21 includes two clamping arms 211 and a second driving source 212. The clamping arms 211 can move towards or away from each other under the driving force of the second driving source 212, so as to clamp and release the diamond to be weighed. Taking the plane where the weighing station 1 is located as the XY plane, the conveying mechanism 22 includes a first conveying part 221 moving along the XY plane and a second conveying part 222 moving along the Z-axis direction perpendicular to the XY plane. The second conveying part 222 is connected to the first conveying part 221 and can move along the XY plane under the drive of the first conveying part 221. The clamping fixture 21 is connected to the second conveying part 222 and can move along the X-axis direction under the drive of the second conveying part 222. In this way, the biaxial movement of the clamping fixture 21 can be realized: it can move along the XY plane and also along the Z-axis direction, and the moving direction of the clamping fixture 21 can be independently controlled, so as to convey the diamond to be weighed from the clamping position to the weighing station 1.

[0032] The clamping position is constructed by a connecting disc 3. The connecting disc 3 includes a disc body 31. 95 independent limit seats 32 are circumferentially arranged at intervals on the disc body 31. Starting from the clamping position, the diamonds to be weighed are placed on each of the limit seats 32 in the first direction D1 from near to far according to the specifications. A driving mechanism 4 is installed on the connecting disc 3. The driving mechanism 4 is used to apply a driving force to drive each of the limit seats 32 provided on the disc body 31 to rotate in the direction opposite to the first direction D1, so as to turn the weighed diamonds to the clamping position one by one, avoiding the phenomenon that the diamonds to be weighed are in a pile. Specifically, refer toFigure 4-5 , the limit seat 32 includes a bottom wall 321 and a retaining wall 322 connected to the bottom wall 321 and protruding above the bottom wall 321 to prevent the diamond from rolling and falling, resulting in loss. A lifting mechanism 5 is provided in the area opposite to the clamping position. The disk body 31 has a hollow portion 311, and a convex edge 312 extends from the disk body 31 in the direction of the hollow portion 311. The limit seat 32 is placed on the convex edge 312 and can move up and down relative to the disk body 31 by means of the driving force of the lifting mechanism 5, thereby realizing the up and down movement of the limit seat 32 relative to the disk body 31 to cooperate with the clamping fixture 21 to clamp the diamond to be weighed in the limit seat 32, avoiding interference between the clamping arm 211 and the disk body 31 when the clamping fixture descends to clamp the diamond to be weighed. In addition, in order to prevent the retaining wall 322 of the limit seat 32 from interfering with the clamping arm 211, the retaining wall 322 includes a first retaining wall 3221 perpendicular to the bottom wall 321 and a second retaining wall 3222 parallel to the first retaining wall 3221. The distance between the first retaining wall 3221 and the second retaining wall 3222 is slightly larger than the width of the clamping arm 211. After the clamping arm 211 extends downward between the first retaining wall 3221 and the second retaining wall 3222, they can approach each other to clamp the diamond to be weighed.

[0033] Specifically, the lifting mechanism 5 includes a first driving source 51 and a lifting rod 52 connected to the first driving source 51 and capable of moving up and down under the driving force of the first driving source 51. A part of the lower surface of each limit seat 32 protrudes 323 to form a positioning groove 324. When the lifting rod 52 is in the raised state, the upper end of the lifting rod 52 is inserted into the positioning groove 324. In this embodiment, the first driving source 51 is a cylinder.

[0034] In order to trace the weighing information of the diamond to be weighed, in this embodiment, 95 placement slots 33 are provided at intervals along the circumference of the disk body 31. The placement slots 33 and the limit seats 32 are coaxially arranged and are located inside the limit seats 32. Each limit seat 32 corresponds to a placement slot 33. The two-dimensional code corresponding to the diamond to be weighed is placed in the placement slot 33. A code scanning module 61 for scanning the two-dimensional code is provided above the placement slot 33. The code scanning module 61 is provided on the second frame 6 opposite to the first frame 2 and faces the placement slot 33. In this way, the weighing information of the diamond to be weighed can be recorded by scanning the diamond to be weighed through the code scanning module 61. When it is necessary to trace the information of a certain diamond to be weighed, it can be obtained only by scanning the code again.

[0035] In summary, the working process of the weighing instrument in this embodiment is as follows: Place the diamonds to be weighed one by one on the limit seats 32, and place the two-dimensional code corresponding to each diamond to be weighed in the placement slot 33. The driving mechanism 4 applies a driving force to drive each limit seat 32 provided on the disk body 31 to rotate in the direction opposite to the first direction D1, so as to rotate the diamonds to be weighed to the clamping position one by one, as Figure 6-7As shown, when the diamond to be weighed rotates to the clamping position, the QR code corresponding to the diamond to be weighed is scanned by the QR code scanning module 61, and the lifting module lifts the limit seat 32. As Figure 7 shown in [reference], after lifting to a preset height h, at this time, the clamping arms 211 of the clamping fixture 21 approach each other to clamp the diamond to be weighed in the limit seat 32, and are conveyed to the weighing station 1 by means of the conveying mechanism 22. After entering the weighing information of the weighing station 1 into the QR code corresponding to the diamond, the diamond is then placed back into the limit seat 32 by means of the clamping fixture 21 and the conveying mechanism 22, and the limit seats 32 on the disk body 31 are continuously driven to rotate in the direction opposite to the first direction D1 to weigh the next diamond to be weighed.

Claims

1. A weighing instrument, comprising a weighing station (1) and a first frame (2) arranged adjacent to the weighing station (1), wherein the first frame (2) is provided with: A clamping fixture (21), wherein the clamping fixture (21) is used to clamp the diamond to be weighed; A conveying mechanism (22) for conveying the diamond to be weighed from the clamping position to the weighing station (1); Features: The clamping position is constructed by a connecting disk (3), the connecting disk (3) comprising a disk body (31), the disk body (31) being provided with at least two independent limiting seats (32) spaced apart along the circumferential direction, starting from the clamping position, the diamonds to be weighed are placed on each of the limiting seats (32) along a first direction (D1) from near to far according to specifications; A driving mechanism (4) is mounted on the connecting disk (3) and is used to apply a driving force to drive each of the limiting seats (32) arranged on the disk body (31) to rotate in a direction opposite to the first direction (D1), thereby rotating the weighed diamonds one by one to a clamping position.

2. The weighing instrument according to claim 1, characterized in that: The limiting seat (32) comprises a bottom wall (321) and a blocking wall (322) connected to the bottom wall (321) and higher than the bottom wall (321).

3. The weighing instrument according to claim 2, characterized in that: A lifting mechanism (5) is provided in an area opposite to the clamping position; the disk body (31) has a hollow portion (311); the disk body (31) has a convex edge (312) extending in the direction of the hollow portion (311); the limit seat (32) is placed on the convex edge (312) and can be lifted up and down relative to the disk body (31) by means of a driving force of the lifting mechanism (5).

4. The weighing instrument according to claim 3, characterized in that: The lifting mechanism (5) comprises a first driving source (51) and a lifting rod (52) connected to the first driving source (51) and capable of rising and falling under the driving force of the first driving source (51); the lower surface portion of each of the limit seats (32) is partially protruded (323) and surrounded to form a positioning groove (324); when the lifting rod (52) is in a raised state, the upper end of the lifting rod (52) is inserted into the positioning groove (324).

5. The weighing instrument according to any one of claims 1 to 4, characterized in that: The plate body (31) is provided with at least two placement grooves (33) at intervals along the circumferential direction. The placement grooves (33) and the limiting seat (32) are coaxially arranged and arranged at the inner periphery of the limiting seat (32). Each limiting seat (32) is provided with a placement groove (33) corresponding to the diamond to be weighed. The placement groove (33) is provided with a two-dimensional code corresponding to the diamond to be weighed. A scanning module (61) for scanning the two-dimensional code is provided above the placement groove (33).

6. The weighing instrument according to claim 5, characterized in that: It also includes a second frame (6), the second frame (6) and the first frame (2) are arranged relative to each other, and the code scanning module (61) is arranged on the second frame (6) and faces the placement slot (33).

7. The weighing instrument according to any one of claims 1 to 4, characterized in that: The plane where the weighing station (1) is located is an XY plane, the conveying mechanism (22) comprises a first conveying part (221) moving along the XY plane and a second conveying part (222) moving along a Z-axis direction perpendicular to the XY plane, the second conveying part (222) being connected to the first conveying part (221) and being able to move along the XY plane under the drive of the first conveying part (221), and the clamping fixture (21) being connected to the second conveying part (222) and being able to move along the Z-axis direction under the drive of the second conveying part (222).

8. The weighing instrument according to claim 7, characterized in that: The clamping fixture (21) comprises at least two clamping arms (211) and a second driving source (212); the clamping arms (211) can move towards or away from each other under the driving force of the second driving source (212).

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