CN113909552B

CN113909552B - Automatic blanking equipment

Info

Publication number: CN113909552B
Application number: CN202111200902.6A
Authority: CN
Inventors: 刘运清; 张任潺; 湛俊秋; 黄培雄; 谷志明
Original assignee: Shenzhen Zhigu Jinyun Technology Co ltd
Current assignee: Shenzhen Zhigu Jinyun Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2025-07-08
Anticipated expiration: 2041-10-14
Also published as: CN113909552A

Abstract

The present application is applicable to the technical field of precious metal processing equipment, and provides an automatic cutting equipment, including: a feeding mechanism, a cutting mechanism, a length measuring mechanism, a weight measuring mechanism and a control mechanism, wherein the feeding mechanism includes a conveying assembly for conveying materials; the cutting mechanism includes a cutter structure that can move to cut the materials located at the cutting station; the weight measuring mechanism is arranged at the rear side of the cutter structure; the control mechanism is electrically connected to the feeding mechanism, the cutting mechanism, the length measuring mechanism and the weight measuring mechanism respectively, and controls the feeding mechanism to stop when the actual length measured by the length measuring mechanism is the target length, and controls the cutting mechanism to perform the cutting operation; and adjusts the target length when the actual weight measured by the weight measuring mechanism exceeds the set deviation range from the target weight. The automatic cutting equipment can feedback adjust the cutting length, improve the cutting weight accuracy, and is applicable to precious metal cutting processing technology.

Description

Automatic blanking equipment

Technical Field

The application relates to the technical field of precious metal processing equipment, in particular to automatic blanking equipment.

Background

At present, a plurality of automatic cutting machines exist on the market, and the automatic cutting machines are mainly used for cutting materials such as wires, aluminum strips and pipes, and the cutting precision of the automatic cutting machines on the market is relatively poor because the requirements on the cutting precision of the materials are not high in the use demands.

However, when processing noble metals such as gold, which require high precision in terms of weight, automatic cutting machines on the market are not applicable because of low precision.

In summary, in the field of precious metal processing, there is a strong need to design a cutting machine with high cutting weight precision.

Disclosure of Invention

The embodiment of the application aims to provide automatic blanking equipment and aims to solve the technical problem that an automatic cutting machine in the prior art is low in precision.

In order to achieve the above purpose, the application adopts the technical scheme that the automatic blanking equipment comprises:

The feeding mechanism comprises a conveying assembly, wherein the conveying assembly is used for conveying materials;

The cutting mechanism comprises a cutter structure, and the cutter structure can move to cut materials positioned at a cutting station;

The length measuring mechanism is used for detecting the length of the material extending out of the cutting station;

The weight measuring mechanism is arranged at the rear side of the cutter structure in the material conveying direction and is used for detecting the weight of the cut material;

The control mechanism is respectively and electrically connected with the feeding mechanism, the blanking mechanism, the length measuring mechanism and the weight measuring mechanism, and is used for controlling the feeding mechanism to stop and controlling the blanking mechanism to perform cutting operation according to the fact that the actual length measured by the length measuring mechanism is the target length, and is used for adjusting the target length when the actual weight measured by the weight measuring mechanism and the target weight exceed a set deviation range.

In one possible design, the automatic blanking apparatus further comprises a frame, and the feeding mechanism, the blanking mechanism and the length measuring mechanism are all mounted to the frame.

In one possible design, the conveying assembly includes a feed roller and a pressure roller with a gap therebetween, the gap being a conveying station, and the conveying mechanism further includes a conveying driver for driving the feed roller to rotate.

In one possible design, the automatic blanking device further comprises a manual regulation mechanism, the manual regulation mechanism comprises a connecting rod mechanism, the connecting rod mechanism is slidably assembled on the frame, one end of the connecting rod mechanism is connected with the press roller, and the connecting rod mechanism can drive the press roller to be close to or far away from the feeding roller so as to change the size of the gap.

In one possible design, the cutter structure comprises two cutters which are oppositely arranged, the cutting mechanism further comprises a cutting driver and a transmission assembly, the cutting driver is respectively connected with the two cutters through the transmission assembly, and the cutting driver is used for driving the two cutters to be relatively close to or separated from each other.

In one possible design, the cutting driver comprises a cutting motor, the transmission assembly comprises a sliding rail and two sliding structures, each sliding structure is slidably assembled on the sliding rail, the two sliding structures are connected with the two cutters in one-to-one correspondence, each sliding structure is rotatably connected with an eccentric wheel, each eccentric wheel is sleeved and fixed on an output shaft of the cutting motor, and the rotation of the output shaft of the cutting motor can drive the two sliding structures to reversely move along the sliding rail.

In one possible design, the length measurement mechanism includes a micrometer, the transmission assembly includes a push plate and a transmission rod set, the push plate is in transmission connection with an output shaft of the cutting motor through the transmission rod set, and the rotation of the output shaft can drive the push plate to push a detection rod of the micrometer to move in a direction away from the cutter.

In one possible design, the transmission rod group comprises a telescopic rod, a lifting rod, a rotating rod, a swinging rod, a push rod and a guide rod,

The guide rod is fixedly arranged on the frame, and the push plate is slidingly assembled on the guide rod;

one end of the telescopic rod is movably connected with the edge area of the output shaft, the rotating rod is rotatably connected with the frame, and a through hole is formed in the rotating rod;

One end of the lifting rod is connected with the rotating rod and used for driving the rotating rod to rotate around the axis of the rotating rod, and the other end of the lifting rod is movably connected with the lifting rod;

one end of the swing rod is movably connected with the push rod, the other end of the swing rod penetrates through the through hole, and the push rod is connected with the push plate.

In one possible design, the automatic material cutting device further comprises a material guiding mechanism, wherein the material guiding mechanism comprises a guiding wheel set, the guiding wheel set comprises two first rollers arranged at intervals, and the two first rollers are respectively arranged at two sides of the material conveying path.

In one possible design, the weight measurement mechanism includes an electronic scale, a receiving cup, a guide chute and a counting sensor, wherein the receiving cup is positioned on the electronic scale, two ends of the guide chute are respectively communicated with the cutting mechanism and the receiving cup, so that materials cut by the cutting mechanism are led into the receiving cup, and the counting sensor is used for detecting the quantity of the materials passing through the guide chute.

Compared with the prior art, the automatic cutting equipment has the beneficial effects that in the use process, the control mechanism controls the feeding mechanism to convey the material to the cutting structure, the length measuring mechanism measures the length of the material at the cutting mechanism so as to cut the material with the target length through the cutting mechanism cutter structure, the cut material with the target length reaches the weight measuring mechanism, the weight measuring mechanism measures the actual weight of the cut material and feeds the actual weight back to the control mechanism, the control mechanism compares the actual weight of the material with the target weight (namely the weight of the material required to be cut), if the deviation between the actual weight of the material and the target weight is large, the system adjusts the target length so as to change the actual cutting length of the material cut later, thereby changing the weight of the material cut next time, and when the deviation between the actual weight of the material and the target weight is small enough to meet the weight precision requirement, continuous material cutting operation is performed according to the current target length, thereby realizing high-precision material cutting.

The automatic cutting equipment provided by the application can automatically measure the weight of the cut material, and can adjust and correct the target length according to the measured weight, so that the cutting weight precision of the material is improved, high-precision cutting can be realized, and the automatic cutting equipment can be applied to noble metal cutting processing technology.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a first view angle structure of an automatic blanking apparatus according to an embodiment of the present application;

fig. 2 is a schematic view of a second view angle structure of an automatic blanking apparatus according to an embodiment of the present application;

FIG. 3 is a schematic view of a third view angle structure of an automatic blanking apparatus according to an embodiment of the present application;

FIG. 4 is a top view of an automatic blanking apparatus provided in one embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of the automatic blanking apparatus of FIG. 4 taken along the direction A-A;

Fig. 6 is a schematic view of a part of an automatic blanking apparatus according to an embodiment of the present application;

Fig. 7 is a schematic diagram of a part of an automatic blanking apparatus according to an embodiment of the present application;

Fig. 8 is a schematic view of a part of an automatic blanking apparatus according to an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of the automatic blanking apparatus of FIG. 8 taken along the direction A-A;

fig. 10 is a schematic view of a part of a structure of an automatic blanking apparatus according to an embodiment of the present application;

FIG. 11 is a schematic view of a part of an automatic blanking apparatus according to an embodiment of the present application;

Fig. 12 is a schematic view of the structure of the claw provided in one embodiment of the application.

Reference numerals related to the above figures are as follows:

1-feeding mechanism, 11-feeding roller, 12-pressing roller, 13-feeding motor, 14-first coupler and 15-first bearing;

21-a cutting motor, 211-a cutter, 22-a slide rail, 23-a sliding structure, 24-an eccentric wheel, 26-a middle rotating rod, 27-a push plate, 28-a clamping jaw, 291-a telescopic rod, 292-a lifting rod, 293-a rotating rod, 294-a swing rod, 295-a push rod, 296-a guide rod, 297-a fixed pin and 298-a sleeve body;

a 3-length measuring mechanism, a 31-detecting rod;

41-electronic scale, 42-receiving cup, 43-guide chute and 44-counting sensor;

51-transverse support plates, 52-longitudinal support plates, 53-brackets, 54-legs;

6-manual control mechanism, 61-connecting rod, 62-handle;

The device comprises a first roller, a 72-guide ring and a 73-supporting seat, wherein the first roller is provided with a first guide groove;

8, material.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for purposes of describing the present application and simplifying the description, and do not indicate or imply that the automatic blanking apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore are not to be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In order to explain the technical scheme of the application, the following is a detailed description with reference to the specific drawings and embodiments.

As shown in fig. 1 to 12, one embodiment of the present application provides an automatic blanking apparatus including a feeding mechanism, a blanking mechanism, a length measuring mechanism 3, a weight measuring mechanism, and a control mechanism, wherein:

the feeding mechanism comprises a conveying assembly, and the conveying assembly is used for conveying materials.

The cutting mechanism comprises a cutter structure, and the cutter structure can relatively move to cut materials positioned at a cutting station.

The length measuring mechanism 3 is used for detecting the length of the material extending out of the cutting station.

The weight measuring mechanism is arranged at the rear side of the cutter structure in the material conveying direction and is used for detecting the weight of the cut material, and the material is conveyed from front to back.

The control mechanism is respectively and electrically connected with the feeding mechanism, the blanking mechanism, the length measuring mechanism 3 and the weight measuring mechanism, and is used for controlling the feeding mechanism to stop and controlling the blanking mechanism to perform cutting operation according to the fact that the actual length measured by the length measuring mechanism 3 is the target length, and is used for adjusting the target length when the actual weight measured by the weight measuring mechanism and the target weight exceed a set deviation range.

Compared with the prior art, the automatic cutting equipment has the beneficial effects that in the use process, the control mechanism controls the feeding mechanism to convey the material to the cutting mechanism, the length of the material is measured at the cutting mechanism through the length measuring mechanism 3 so as to cut the material with the target length through the cutter structure of the cutting mechanism, the cut material with the target length reaches the weight measuring mechanism, the weight measuring mechanism measures the actual weight of the cut material and feeds back to the control mechanism, the control mechanism compares the actual weight of the material with the target weight (namely the weight of the material required to be cut), if the deviation between the actual weight of the material and the target weight is large, the system adjusts the target length so as to change the actual cutting length of the material cut later, the weight of the material cut next time is changed, and when the deviation between the actual weight of the material and the target weight is small enough to meet the weight precision requirement, continuous material cutting operation is carried out according to the current target length, so that high-precision material cutting is realized.

Specifically, the cutting accuracy can be adjusted by changing the set deviation range in the control mechanism. For example, the setting deviation range may be set to ±0.01g or to ±0.01mg, and the cutting accuracy when ±0.01mg is set is higher than the cutting accuracy when ±0.01g is set.

In one possible design, the automatic blanking apparatus further comprises a frame to which the feeding mechanism, the blanking mechanism and the length measuring mechanism 3 are mounted. The frame provides support for the feeding mechanism, the blanking mechanism and the length measuring mechanism 3.

In one possible design, as shown in fig. 5, the conveying assembly includes a feed roller 11 and a pressing roller 12, a gap is provided between the feed roller 11 and the pressing roller 12, the gap is a conveying station, and the conveying mechanism further includes a conveying driver for driving the feed roller 11 to rotate. Alternatively, the feed roller 11 is located below the press roller 12, and the axis of the feed roller 11 and the axis of the press roller 12 are parallel to each other. For example, the axis of the feed roller 11 and the axis of the pressure roller 12 are both parallel to the horizontal plane. The conveying driver can be a feeding motor 13, and an output shaft of the feeding motor 13 is in transmission connection with the feeding roller 11, for example, the feeding motor can be directly connected, can be connected through a first coupling 14, or can be connected through a reduction gearbox.

As shown in fig. 1, the frame includes a leg 54, a lateral support plate 51, a longitudinal support plate 52 and a bracket 53, the leg 54 is mounted below the lateral support plate 51, the longitudinal support plate 52 and the bracket 53 are both mounted above the lateral support plate 51, the longitudinal support plate 52 is mounted at the rear side of the bracket 53, and the conveying assembly is rotatably mounted on the bracket 53. Specifically, the feed roller 11 and the pressure roller 12 are respectively connected to the bracket 53 through first bearings.

In one possible design, as shown in FIG. 5, the pinch roller and feed roller 11 may be placed in a gap-adjustable mode. For example, the automatic material cutting device further includes a manual control mechanism 6, the manual control mechanism 6 includes a link 61 mechanism, the link 61 mechanism is slidably mounted on the frame, one end of the link 61 mechanism is connected with the press roller 12, and the link 61 mechanism can drive the press roller 12 to approach or separate from the feed roller 11, so as to change the size of the gap. Further, a carriage is slidably fitted on the bracket 53, the carriage being movable in a range in the longitudinal direction with respect to the bracket 53, and a first bearing to which the platen roller 12 is connected is mounted on the carriage.

Alternatively, in another possible design, one end of the link 61 mechanism of the manual control mechanism 6 may be connected to a carriage, and the height of the carriage is changed to drive the platen 12 to move, so as to change the gap between the platen 12 and the feed roller 11. In this arrangement, the pressure roller 12 is also rotatable relative to the feed roller 11.

The link 61 mechanism may include only the link 61, and one end of the link 61 extends upward from the support 53, so that an operator can lift or push the link 61 to drive the press roller 12 to move, or the link 61 mechanism may further include a handle 62, where the handle 62 is connected to the top end of the link 61, and the operator can move up and down by operating the handle 62 and driving the link 61. In one possible embodiment, the handle 62 is fixedly connected to the link 61, and the handle 62 is disposed perpendicular to the link 61. In another possible embodiment, the handle 62 is hinged to the bracket 53 and the link 61, respectively, and the hinge of the handle 62 to the link 61 is located closer to the end of the handle 62 than the hinge of the handle 62 to the bracket 53, and when the handle 62 is depressed to swing the handle 62 downward, the handle 62 swings with respect to the hinge of the bracket 53, thereby lifting the hinge of the handle 62 to the link 61, so that the link 61 drives the platen roller 12 upward.

In the use process, the gap between the pressing roller 12 and the feeding roller 11 can be enlarged by operating the manual control mechanism 6, so that the material is conveniently placed between the pressing roller 12 and the feeding roller 11. After the material is placed between the press roller 12 and the feed roller 11, the manual regulation and control mechanism 6 is stopped to be controlled, the press roller 12 is pressed above the material under the action of self gravity, the feed roller 11 is driven to rotate by the conveying driver, and the feed roller 11 drives the material to move forward by friction force to be close to the cutting mechanism.

In another possible embodiment, the conveying assembly may also be of other construction, for example, the conveying assembly comprises a clamp and a driving member for driving the clamp to clamp or unclamp and for driving the clamp to move to convey the material. When the clamp is in a loosening state, the material passes through the clamp, then the clamp clamps the material, and then the clamp drives the material to move, so that the material is conveyed.

In one possible design, the automatic blanking apparatus further comprises a guide mechanism, the guide mechanism comprises a guide wheel set, the guide wheel set comprises two first rollers 71 arranged at intervals, and the two first rollers 71 are respectively arranged at two sides of the material conveying path. The axes of the two first rollers 71 are all vertical, and the two first rollers 71 are all rotatably mounted above the lateral support plate 51 and located on the front sides of the press roller 12 and the feed roller 11. The two first rollers 71 are respectively located at two sides of the material, and are used for transversely limiting the material, and when the material moves forward under the drive of the feeding roller 11, the two first rollers 71 rotate under the action of the material so as to reduce friction with the material.

Optionally, the guiding mechanism may further include two second rollers, the axes of the two second rollers are all in the vertical direction, the two second rollers are all mounted on the support 53, and the two second rollers are located on the rear sides of the two first rollers 71 and on the front sides of the two cutters.

Optionally, the guiding mechanism may further include a guiding ring 72, where the guiding ring 72 is fixed at one end of the transverse supporting plate 51 by a supporting seat 73, the guiding ring 72 is spaced from the first rollers 71, and the material can pass through a hollow cavity of the guiding ring 72 and extend forward in the directions of the two first rollers 71.

In summary, the material can be guided and limited at a plurality of positions by the guide ring 72, the first roller 71, the second roller, the pressing roller 12 and the feeding roller 11.

In one possible design, the cutter structure comprises a single cutter and a support table, e.g. a guillotine, i.e. one in number of cutters, and the cutting mechanism further comprises a cutting drive connected to the cutter for driving the cutter to move closer to or further away from the support table, the material being located between the cutter and the support table, one side of the material being in contact with the support table, the cutting drive driving the cutter to move closer to the support table, thereby cutting the material.

Or in another possible design, the cutter structure comprises double cutters, namely, the number of the cutters is two, the two cutters are oppositely arranged, and the cutting edges of the two cutters are opposite. The cutting mechanism further comprises a cutting driver and a transmission assembly, the cutting driver is respectively connected with the two cutters through the transmission assembly, and the cutting driver is used for driving the two cutters to be relatively close to or separated from each other. So set up, at the in-process of cutting, two cutters relative movement to cut the material from both sides simultaneously, cutting efficiency is high.

As shown in fig. 7-11, in one possible design, the cutting driver comprises a cutting motor 21, the transmission assembly comprises a slide rail 22 and two sliding structures 23, each sliding structure 23 is slidably assembled on the slide rail 22, the two sliding structures 23 are connected with the two cutters in a one-to-one correspondence manner, each sliding structure 23 is rotatably connected with an eccentric wheel 24, each eccentric wheel 24 is sleeved and fixed on an output shaft of the cutting motor 21, and the rotation of the output shaft of the cutting motor 21 can drive the two sliding structures 23 to reversely move along the slide rail 22.

Alternatively, the output shaft of the cutting motor 21 may be directly connected to the eccentric 24, or the output shaft of the cutting motor 21 may be connected to the intermediate lever 26 through a second coupling, and the intermediate lever 26 is fixedly connected to the eccentric 24. In particular, the eccentric 24 and the transfer lever 26 may be provided separately, but fixedly connected. Or the eccentric 24 and the transfer rod 26 are integrally formed and manufactured through an integral molding process. The eccentric wheel 24 is rotatably connected with the corresponding sliding structure 23 through a second bearing. So set up, in the output shaft pivoted in-process, eccentric wheel 24 rotates for sliding structure 23, because eccentric wheel 24 has the characteristic of eccentric setting, so in eccentric wheel 24 pivoted in-process, it can drive sliding structure 23 reciprocates. Specifically, the distance between one side of the outer edge of the eccentric wheel 24 and the axis is the largest, the distance between the other side and the axis is the shortest, when the point of the eccentric wheel 24 with the largest distance from the axis rotates from the lower area of the axis to the upper area of the axis, the sliding structure 23 moves upward, and when the point of the eccentric wheel 24 with the smallest distance from the axis rotates from the lower area of the axis to the upper area of the axis, the sliding structure 23 moves downward. In the two eccentric wheels 24, when the point with the largest distance between one side of the outer edge of one eccentric wheel 24 and the axle center is located right above the axle center, the point with the largest distance between one side of the outer edge of the other eccentric wheel 24 and the axle center is located right below the axle center, so that in the synchronous rotation process in the same direction, when one sliding structure 23 moves upwards, the other sliding structure 23 moves downwards, that is, the two cutters can relatively move close to perform cutting operation, or relatively move far away from each other to prepare for performing the next cutting operation.

In one possible design, the length measuring mechanism 3 comprises a micrometer, the transmission assembly comprises a push plate 27 and a transmission rod set, the push plate 27 is in transmission connection with an output shaft of the cutting motor 21 through the transmission rod set, and the rotation of the output shaft can drive the push plate 27 to push a detection rod 31 of the micrometer to move in a direction away from the cutter. Specifically in the use, the one end of material is contacted with the tip (i.e. detection end) of the detection pole 31 of micrometer after stretching out the clearance between two cutters, and when the material outwards removes, the material promotes the detection pole 31 of micrometer and removes, and detection pole 31 detects the distance that the material promoted its removal to obtain the length that the material stretched out to the cutter rear side, namely the cutting length of material, when the micrometer detects the length of material and reaches target length, feed back this signal to control mechanism, control mechanism control feeding mechanism stops the pay-off, so that the material stops at target length. In order to facilitate cutting of the material, the control mechanism controls the transmission assembly so that the push plate 27 pushes the detection rod 31 in a direction away from the cutter, and after cutting is completed, the control mechanism controls the push plate 27 to return, and the detection rod 31 returns through self elasticity.

Optionally, as shown in fig. 2, a through hole is provided on the push plate 27, a claw 28 is installed in the through hole, as shown in fig. 12, two ends of the claw 28 extend out of the through hole respectively, a detection rod 31 extends to the direction of the cutter through the middle area of the claw 28, the claw 28 can move relative to the through hole within a certain range, one ends of the claw ends are connected and enclose into an annular area, a certain gap is provided between the other ends (free ends) of the adjacent claw ends, in a natural state, the free ends of the claw ends extend out to one side of the through hole far away from the cutter, and the outer diameter of the free ends of the claw ends is larger than the aperture of the through hole. When the push plate 27 moves in a direction away from the cutter, the push plate 27 moves relative to the claw 28 first, so that the free end side of the claw 28 enters the through hole more, the claw 28 tightens to clamp the detection rod 31, and when the push plate 27 continues to move, the claw 28 holds the detection rod 31 tightly and drives the detection rod 31 to move in a direction away from the cutter. When the push plate 27 moves in a direction approaching to the cutter, the claw 28 is reset under the self-elastic action, so that the detection rod 31 is loosened, and the detection rod 31 is reset under the self-elastic action.

In one possible design, the transmission rod set includes a telescopic rod 291, a lifting rod 292, a rotating rod 293, a swinging rod 294, a push rod 295 and a guide rod 296, wherein the guide rod 296 is fixedly installed on the frame, the push plate 27 is slidably assembled on the guide rod 296, one end of the telescopic rod 291 is movably connected with the edge area of the output shaft, the rotating rod 293 is rotatably connected with the frame, a through hole is formed in the rotating rod 293, one end of the lifting rod 292 is connected with the rotating rod 293 and used for driving the rotating rod 293 to rotate around the axis of the rotating rod 293, the other end of the lifting rod 292 is movably connected with the swinging rod 294, one end of the swinging rod 294 is movably connected with the push rod 295, the other end of the swinging rod 294 penetrates through the through hole, and the push rod 295 is connected with the push plate 27.

The telescopic link 291 can be directly connected with the output shaft of the cutting motor 21, or the output shaft of the cutting motor 21 is connected with the middle rotating rod 26 through a coupler, one end of the middle rotating rod 26 is connected with the sleeve 298, and the end of the telescopic link 291 is movably connected with the sleeve 298. Specifically, a fixing pin 297 is axially connected to an edge region (non-axial region) on the end face of the sleeve body 298, sleeves are provided at both ends of the telescopic rod 291, a sleeve at one end is sleeved on the fixing pin 297, and a sleeve at the other end is sleeved on the lifting rod 292. So set up, drive the cover body 298 and rotate, and can not drive telescopic link 291 and rotate when the output shaft of cutting motor 21 rotates, only can drive the one end of telescopic link 291 and do circular motion with the axis of cover body 298, the other end of telescopic link 291 drives and lifts the pole 292 and do the up-and-down swing. When the lifting rod 292 swings, the rotating rod 293 is driven to rotate, the rotating rod 293 rotates to drive the swinging rod 294 to swing, so that the swinging rod 294 pushes the push rod 295, and the push plate 27 is driven to move transversely through the push rod 295.

Specifically, the axis of the sleeve 298 is parallel to the horizontal plane and perpendicular to the plate surface of the longitudinal support plate 52, the axis of the telescopic rod 291 is inclined with respect to the horizontal plane and parallel to the plate surface of the longitudinal support plate 52, the angle of the axis of the lifting rod 292 with respect to the horizontal plane is variable, that is, the axis of the lifting rod 292 can swing with respect to the horizontal plane, and the projection of the axis of the lifting rod 292 in the horizontal plane is perpendicular to the projection of the plate surface of the longitudinal support plate 52 in the horizontal plane. The axis of the rotating lever 293 is parallel with respect to the horizontal plane and with respect to the longitudinal support plate 52. The angle of the axis of the swing link 294 with respect to the horizontal plane is variable, that is, the swing link 294 swings with respect to the horizontal plane, and the projection of the axis of the swing link 294 in the horizontal plane is perpendicular to the projection of the plate surface of the longitudinal support plate 52 in the horizontal plane. The axis of the push rod 295 is parallel to the axis of the sleeve 298 and the axis of the guide 296 is parallel to the axis of the sleeve 298.

The rotating rod 293 can be connected with the longitudinal support plate 52 through a steering fixing seat, the steering fixing seat is connected with the longitudinal support plate 52 through a fixing rod, and the rotating rod 293 is rotationally connected with the steering fixing seat through a third bearing.

In one possible design, the weight measurement mechanism includes an electronic scale 41, a receiving cup 42, a guide chute 43, and a counting sensor 44, the receiving cup 42 is located on the electronic scale 41, two ends of the guide chute 43 are respectively connected to the cutting mechanism and the receiving cup 42, so as to guide the material cut by the cutting mechanism into the receiving cup 42, and the counting sensor 44 is used for detecting the quantity of the material passing through the guide chute 43. Specifically, the electronic scale 41 may be a high-precision electronic scale 41. The guide chute 43 may be fixed relative to the longitudinal support plate 52 by a support. The top of baffle box 43 is located the below in the gap between two cutters to make the material that cuts directly fall into baffle box 43, baffle box 43 slope sets up, and the bottom of baffle box 43 is located the top of receiving cup 42, so that the material gets into receiving cup 42 through baffle box 43 under self gravity action. The counting sensor 44 may also be fixed to the longitudinal support plate 52 by a support member, and a photoelectric sensor may be used for the counting sensor 44. When there is material passing through the counting sensor 44, the counting sensor 44 sends a signal to the control mechanism to increase the counting.

In this embodiment, the control mechanism may be a circuit board containing a microcontroller MCU, a motor driver, and control circuitry for the communication interface.

For example, the automatic cutting device provided by the application can be used for cutting gold bars, when the weight of the gold bars to be cut is 1g and the cutting deviation is +/-0.01 g, the control mechanism can be provided with a set deviation range of +/-0.01 g, the preliminary target length is calculated according to the thickness, width and density of the gold bars, and the target length is arranged in the control mechanism. Performing a primary cut according to the preliminary target length,

The cutting process is as follows:

The operator operates the manual adjustment mechanism 6 to lift the press roller 12, at which time the cutters remain open, i.e. the gap between the two cutters is relatively large.

After passing through the guide ring 72, the gold belt sequentially passes through the gap between the two first rollers 71, the gap between the two second rollers and the gap between the two cutters, and abuts against the detection rod 31 of the micrometer.

The operator operates the manual regulation mechanism 6 to press down the press roller 12, so that the metal belt is pressed between the press roller 12 and the feeding roller 11 through the press roller 12, and feeding is completed.

The control mechanism controls the feeding mechanism to work so as to convey the gold belt backwards, and the feeding mechanism stops feeding after the length measured by the micrometer reaches the target length.

The control mechanism controls the operation of the blanking mechanism through the transmission component, and simultaneously controls the push plate 27 to push the detection rod 31 of the micrometer, so that a certain gap is kept between the detection rod 31 and the gold strip, gold strips generated after the gold strip is cut can be ensured to fall off, the blanking mechanism cuts the gold strip with the target length, and the cut part is called the gold strip.

The gold bars fall into the guide chute 43 and slide along the guide chute 43 into the receiving cup 42 on the electronic scale 41.

The electronic scale 41 weighs the gold bars and uploads the data to the control mechanism.

The control mechanism calculates the deviation from the target weight according to the actual weight, calculates the target length of the next cutting according to the deviation, and then performs the next feeding, blanking and weighing operation. After the circulation is performed for a plurality of times, the gap between the actual weight of the gold bar and the target weight is smaller and smaller, and finally milligram precision can be achieved.

The above description is illustrative of the various embodiments of the application and is not intended to be limiting, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. An automatic blanking apparatus, comprising:

the weight measuring mechanism is arranged at the rear side of the cutting station in the material conveying direction and is used for detecting the weight of the cut material;

The control mechanism is respectively and electrically connected with the feeding mechanism, the blanking mechanism, the length measuring mechanism and the weight measuring mechanism, and is used for controlling the feeding mechanism to stop and controlling the blanking mechanism to perform cutting operation according to the fact that the actual length measured by the length measuring mechanism is the target length;

the blanking mechanism further comprises a transmission assembly;

The conveying assembly comprises a feeding roller and a pressing roller, a gap is formed between the feeding roller and the pressing roller, the gap is a conveying station, and the conveying mechanism further comprises a conveying driver, wherein the conveying driver is used for driving the feeding roller to rotate;

The length measuring mechanism comprises a micrometer, the transmission assembly comprises a push plate and a transmission rod group, the push plate is in transmission connection with an output shaft of the cutting motor through the transmission rod group, and the rotation of the output shaft can drive the push plate to push a detection rod of the micrometer to move in a direction away from the cutter;

the transmission rod group comprises a telescopic rod, a lifting rod, a rotating rod, a swinging rod, a pushing rod and a guide rod;

One end of the lifting rod is connected with the rotating rod and used for driving the rotating rod to rotate around the axis of the rotating rod, and the other end of the lifting rod is movably connected with the telescopic rod;

2. The automatic blanking apparatus of claim 1, further comprising a frame, wherein the feeding mechanism, the blanking mechanism, and the length measuring mechanism are mounted to the frame.

3. The automatic blanking apparatus of claim 1, further comprising a manual regulation mechanism including a link mechanism slidably mounted to the frame, one end of the link mechanism being connected to the press roller, the link mechanism being capable of driving the press roller toward or away from the feed roller to change the size of the gap.

4. The automatic blanking apparatus of claim 2, wherein the cutter structure includes two oppositely disposed cutters, the blanking mechanism further including a cutting drive connected to the two cutters, respectively, by the transmission assembly, the cutting drive being adapted to drive the two cutters relatively closer together or apart.

5. The automatic blanking device of claim 4, wherein the cutting driver comprises a cutting motor, the transmission assembly comprises a sliding rail and two sliding structures, each sliding structure is slidably assembled on the sliding rail, the two sliding structures are in one-to-one correspondence connection with the two cutters, each sliding structure is rotatably connected with an eccentric wheel, each eccentric wheel is sleeved and fixed on an output shaft of the cutting motor, and the output shaft of the cutting motor can drive the two sliding structures to move along the sliding rail.

6. The automatic blanking apparatus of any one of claims 1-5, further comprising a guide mechanism including a guide wheel set, the guide wheel set including two first rollers arranged at intervals, the two first rollers being respectively arranged on both sides of the material conveying path.

7. The automatic blanking apparatus of any one of claims 1-5, wherein the weight measuring mechanism includes an electronic scale, a receiving cup, a guide chute, and a counting sensor, the receiving cup is located on the electronic scale, two ends of the guide chute are respectively communicated with the blanking mechanism and the receiving cup, so that materials cut by the blanking mechanism are led into the receiving cup, and the counting sensor is used for detecting the quantity of materials passing through the guide chute.