Automatic material cutting equipment

Abstract

This application is applicable to the technical field of precious metal processing equipment, and provides an automatic cutting device, including: a feeding mechanism, a cutting mechanism, a length measuring mechanism, a weight measuring mechanism and a control mechanism. The feeding mechanism includes a conveying component for conveying materials; the cutting mechanism includes a cutter structure capable of moving 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, 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 a 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 device can feedback and adjust the cutting length, improve the cutting weight accuracy, and is applicable to the precious metal cutting process.

Description

Technical Field

[0001] This application relates to the technical field of precious metal processing equipment, and more specifically, to an automatic cutting equipment. Background Art

[0002] Currently, there are various automatic cutting machines on the market, which are mainly used for cutting materials such as wires, aluminum bars, and pipes. Since the cutting accuracy requirements for the above-mentioned materials are not high in the usage requirements, the cutting accuracy of the automatic cutting machines on the market is relatively poor.

[0003] However, when processing precious metals such as gold with high precision requirements for weight, the automatic cutting machines on the market cannot be used due to their low precision.

[0004] In summary, there is an urgent need in the precious metal processing field to design a cutting machine with high cutting weight accuracy. Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide an automatic cutting equipment, aiming to solve the technical problem of low precision of the automatic cutting machine in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in this application is: to provide an automatic cutting equipment, including:

[0007] A feeding mechanism, including a conveying component, which is used for conveying materials;

[0008] A cutting mechanism, including a cutter structure, which can move to cut the materials located at the cutting station;

[0009] A length measuring mechanism, which is used to detect the length of the material extending out of the cutting station;

[0010] A weight measuring mechanism, which is arranged behind the cutter structure in the material conveying direction, and is used to detect the weight of the cut material;

[0011] A control mechanism, which is electrically connected to the feeding mechanism, the cutting mechanism, the length measuring mechanism and the weight measuring mechanism respectively, and is used to control the feeding mechanism to stop and control the cutting mechanism to perform a cutting operation when the actual length measured by the length measuring mechanism is the target length; and is used to adjust the target length when the actual weight measured by the weight measuring mechanism exceeds the set deviation range from the target weight.

[0012] In a possible design, the automatic cutting equipment further includes a frame, and the feeding mechanism, the cutting mechanism and the length measuring mechanism are all installed on the frame.

[0013] In one possible design, the conveying assembly includes a feed roller and a pressure roller, and there is a gap between the feed roller and the pressure roller, and the gap is a conveying station. The feeding mechanism also includes a conveying drive, and the conveying drive is used to drive the feed roller to rotate.

[0014] In a possible design, the automatic cutting equipment also includes a manual control mechanism, which includes a connecting rod mechanism, which is slidably assembled on the frame, and one end of the connecting rod mechanism is connected to the pressure roller. The connecting rod mechanism can drive the pressure roller to approach or move away from the feeding roller to change the size of the gap.

[0015] In a possible design, the cutter structure includes two cutters arranged opposite to each other, and the cutting mechanism also includes a cutting drive and a transmission assembly. The cutting drive is respectively connected to the two cutters through the transmission assembly, and the cutting drive is used to drive the two cutters to move relatively close to or apart.

[0016] In a possible design, the cutting drive includes a cutting motor; the transmission assembly includes a slide rail and two sliding structures, each of the sliding structures is slidably mounted on the slide rail, the two sliding structures are connected to the two cutters one by one, each of the sliding structures is rotatably connected to an eccentric wheel, and each of the eccentric wheels is mounted and fixed on the output shaft of the cutting motor. The rotation of the output shaft of the cutting motor can drive the two sliding structures to move in the opposite direction along the slide rail.

[0017] In one possible design, the length measuring mechanism includes a micrometer, and the transmission assembly includes a push plate and a transmission rod group. The push plate is connected to the 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 the detection rod of the micrometer to move away from the cutter.

[0018] In a possible design, the transmission rod group includes a telescopic rod, a lifting rod, a rotating rod, a swing rod, a push rod and a guide rod.

[0019] The guide rod is fixedly mounted on the frame, and the push plate is slidably mounted on the guide rod;

[0020] One end of the telescopic rod is movably connected to the edge area of ​​the output shaft, the rotating rod is rotatably connected to the frame, and a through hole is provided on the rotating rod;

[0021] One end of the lifting rod is connected to the rotating rod and is used to drive the rotating rod to rotate around the axis of the rotating rod, and the other end is movably connected to the lifting rod;

[0022] One end of the swing rod is movably connected to the push rod, and the other end passes through the through hole, and the push rod is connected to the push plate.

[0023] In a possible design, the automatic material cutting device further includes a material guiding mechanism, and the material guiding mechanism includes a guiding wheel set. The guiding wheel set includes two first rollers arranged at intervals, and the two first rollers are respectively arranged on both sides of the material conveying path.

[0024] In a possible design, the weight measuring mechanism includes an electronic scale, a material receiving cup, a material guiding groove and a counting sensor. The material receiving cup is located on the electronic scale. The two ends of the material guiding groove are respectively communicated with the material cutting mechanism and the material receiving cup to guide the material cut by the material cutting mechanism into the material receiving cup. The counting sensor is used to detect the quantity of the material passing through the material guiding groove.

[0025] The beneficial effect of the automatic material cutting device provided by this application lies in that: compared with the prior art, during the use of the automatic material cutting device of this application, the control mechanism controls the feeding mechanism to convey the material to the material cutting structure. At the material cutting mechanism, the length measuring mechanism measures the length of the material, so as to cut the material of the target length through the cutter structure of the material cutting mechanism. The material of the target length cut is sent to the weight measuring mechanism. The weight measuring mechanism measures the actual weight of the cut material and feeds it back to the control mechanism. The control mechanism compares the actual weight of the material with the target weight (that is, the weight of the material that needs 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 to change the actual cutting length of the material cut later, thereby changing the weight of the material cut next time. When the deviation between the actual weight of the material and the target weight is small enough to meet the weight accuracy requirement, continuous material cutting operations are performed according to the current target length, so as to achieve high-precision material cutting.

[0026] Since the automatic material cutting device provided by this application can automatically measure the weight of the cut material and can adjust and correct the target length according to the measured weight, thereby improving the cutting weight accuracy of the material, it can achieve high-precision cutting and can be applied to the precious metal cutting and processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of the first perspective of the automatic material cutting device provided by an embodiment of this application;

[0029] Figure 2 It is a schematic structural diagram of the second perspective of an automatic material cutting device provided by an embodiment of the present application;

[0030] Figure 3 It is a schematic structural diagram of the third perspective of an automatic material cutting device provided by an embodiment of the present application;

[0031] Figure 4 It is a top view of an automatic material cutting device provided by an embodiment of the present application;

[0032] Figure 5 is Figure 4 a schematic cross-sectional view of the automatic material cutting device in along the A-A direction;

[0033] Figure 6 It is a schematic diagram of a partial structure of an automatic material cutting device provided by an embodiment of the present application Figure 1 ;

[0034] Figure 7 It is a schematic diagram of a partial structure of an automatic material cutting device provided by an embodiment of the present application Figure 2 ;

[0035] Figure 8 It is a schematic diagram of a partial structure of an automatic material cutting device provided by an embodiment of the present application Figure 3 ;

[0036] Figure 9 is Figure 8 a schematic cross-sectional view of the automatic material cutting device in along the A-A direction;

[0037] Figure 10 It is a schematic diagram of a partial structure of an automatic material cutting device provided by an embodiment of the present application Figure 4 ;

[0038] Figure 11 It is a schematic diagram of a partial structure of an automatic material cutting device provided by an embodiment of the present application Figure 5 ;

[0039] Figure 12 It is a schematic structural diagram of a jaw provided by an embodiment of the present application.

[0040] The label details involved in the above-mentioned drawings are as follows:

[0041] 1 - Feeding mechanism; 11 - Feeding roller; 12 - Pressure roller; 13 - Feeding motor; 14 - First coupling; 15 - First bearing;

[0042] 21 - Cutting motor; 211 - Cutting knife; 22 - Slide rail; 23 - Sliding structure; 24 - Eccentric wheel; 26 - Transfer rod; 27 - Pushing plate; 28 - Claw; 291 - Telescopic rod; 292 - Lifting rod; 293 - Rotating rod; 294 - Swing rod; 295 - Push rod; 296 - Guide rod; 297 - Fixed pin; 298 - Sleeve

[0043] 3 - Length measuring mechanism; 31 - Detection rod

[0044] 41 - Electronic scale; 42 - Receiving cup; 43 - Feeding chute; 44 - Counting sensor

[0045] 51 - Transverse support plate; 52 - Longitudinal support plate; 53 - Bracket; 54 - Leg

[0046] 6 - Manual regulation mechanism; 61 - Link; 62 - Handle

[0047] 71 - First roller; 72 - Feeding ring; 73 - Support base

[0048] 8 - Material Detailed implementation mode

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further details this application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or 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 indirectly connected to the other element

[0051] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the automatic cutting equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0053] To illustrate the technical solutions described in this application, the following provides a detailed description in conjunction with specific drawings and embodiments.

[0054] As Figures 1 to 12 shown, an embodiment of this application provides an automatic cutting device, including: a feeding mechanism, a cutting mechanism, a length measuring mechanism 3, a weight measuring mechanism, and a control mechanism, where:

[0055] The feeding mechanism includes a conveying component, and the conveying component is used to convey materials.

[0056] The cutting mechanism includes a cutting tool structure, and the cutting tool structure can move relatively to cut the materials located at the cutting station.

[0057] The length measuring mechanism 3 is used to detect the length of the materials extending out of the cutting station.

[0058] The weight measuring mechanism is arranged at the rear side of the cutting tool structure in the material conveying direction and is used to detect the weight of the cut materials; it should be noted that the materials are conveyed from front to back.

[0059] The control mechanism is electrically connected to the feeding mechanism, the cutting mechanism, the length measuring mechanism 3, and the weight measuring mechanism respectively, and is used to control the feeding mechanism to stop and the cutting mechanism to perform a cutting operation when the actual length measured by the length measuring mechanism 3 is the target length; and is used to adjust the target length when the actual weight measured by the weight measuring mechanism exceeds the set deviation range from the target weight.

[0060] The beneficial effect of the automatic cutting equipment provided by the present application is that compared with the prior art, during use of the automatic cutting equipment of the present application, the control mechanism controls the feeding mechanism to transmit the material to the cutting mechanism. At the cutting mechanism, the length of the material is measured by the length measuring mechanism 3, so that the material of the target length is cut by the cutting knife structure of the cutting mechanism. The cut material of the target length reaches the weight measuring mechanism, and the weight measuring mechanism measures the actual weight of the cut material and feeds it back to the control mechanism. The control mechanism compares the actual weight of the material with the target weight (that is, the weight of the material 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 to change the actual cutting length of the material cut later, thereby changing the weight of the material cut next time. When the deviation between the actual weight of the material and the target weight is small enough to meet the weight accuracy requirement, continuous material cutting operations are performed according to the current target length, thereby achieving high-precision material cutting.

[0061] Since the automatic cutting equipment provided in the present application can automatically measure the weight of the cut material and can adjust and correct the target length according to the measured weight, thereby improving the cutting weight accuracy of the material, it can achieve high-precision cutting and can be applied to precious metal cutting processing technology.

[0062] Specifically, the cutting accuracy can be adjusted by changing the set deviation range in the control mechanism. For example, the set deviation range can be set to ±0.01g or ±0.01mg, and the cutting accuracy when it is set to ±0.01mg is higher than the cutting accuracy when it is set to ±0.01g.

[0063] In a possible design, the automatic cutting device further comprises a frame, and the feeding mechanism, the cutting mechanism and the length measuring mechanism 3 are all mounted on the frame. The frame provides support for the feeding mechanism, the cutting mechanism and the length measuring mechanism 3.

[0064] In one possible design, Figure 5 As shown, the conveying assembly includes a feed roller 11 and a pressure roller 12, and there is a gap between the feed roller 11 and the pressure roller 12, and the gap is a conveying station. The feeding mechanism also includes a conveying driver, and the conveying driver is used to drive the feed roller 11 to rotate. Optionally, the feed roller 11 is located below the pressure roller 12, and the axis of the feed roller 11 and the axis of the pressure 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 the output shaft of the feeding motor 13 is connected to the feed roller 11 in a transmission manner, for example, it can be directly connected, it can also be connected through a first coupling 14, or it can also be connected through a reduction gear box.

[0065] like Figure 1As shown in the figure, the frame includes legs 54, a transverse support plate 51, a longitudinal support plate 52, and a bracket 53. The legs 54 are installed below the transverse support plate 51, and both the longitudinal support plate 52 and the bracket 53 are installed above the transverse support plate 51. The longitudinal support plate 52 is installed behind the bracket 53, and the conveying assembly is rotatably installed on the bracket 53. Specifically, the feeding roller 11 and the pressing roller 12 are respectively connected to the bracket 53 through the first bearings.

[0066] In a possible design, as Figure 5 shown, the pressing wheel and the feeding roller 11 can be set in a mode with adjustable gap. For example, the automatic cutting equipment further includes a manual control mechanism 6. The manual control mechanism 6 includes a link 61 mechanism. The link 61 mechanism is slidably assembled on the frame. One end of the link 61 mechanism is connected to the pressing roller 12, and the link 61 mechanism can drive the pressing roller 12 to approach or move away from the feeding roller 11 to change the size of the gap. Further, a sliding frame is slidably assembled on the bracket 53. The sliding frame can move longitudinally relative to the bracket 53 within a certain range. The first bearing connected to the pressing roller 12 is installed on the sliding frame.

[0067] Alternatively, in another possible design, one end of the link 61 mechanism of the manual control mechanism 6 can be connected to the sliding frame, and the pressing roller 12 can be driven to move by changing the height of the sliding frame, thereby changing the gap between the pressing roller 12 and the feeding roller 11. In this setting method, the pressing roller 12 can also rotate relative to the feeding roller 11.

[0068] The link 61 mechanism may only include a link 61. One end of the link 61 extends upward from the bracket 53 to facilitate the operator to lift or push the link 61 to drive the pressing roller 12 to move. Alternatively, the link 61 mechanism may further include a handle 62. The handle 62 is connected to the top of the link 61, and the operator can drive the link 61 to move up and down by operating the handle 62. In a feasible implementation manner, the handle 62 is fixedly connected to the link 61, and the handle 62 is vertically arranged with the link 61. In another feasible implementation manner, the handle 62 is respectively hinged to the bracket 53 and the link 61, and the hinge point of the handle 62 and the link 61 is located at a position closer to the end of the handle 62 relative to the hinge point of the handle 62 and the bracket 53. When the handle 62 is pressed down to make the handle 62 swing downward, the handle 62 swings relative to the hinge point with the bracket 53, thereby lifting the hinge point of the handle 62 and the link 61 to drive the link 61 to drive the pressing roller 12 to move upward.

[0069] During use, by operating the manual adjustment mechanism 6, the gap between the pressure roller 12 and the feeding roller 11 can be increased, facilitating the placement of the material between the pressure roller 12 and the feeding roller 11. After the material is placed between the pressure roller 12 and the feeding roller 11, the operation of the manual adjustment mechanism 6 is stopped, and then the pressure roller 12 presses on top of the material under its own gravity. The conveying driver drives the feeding roller 11 to rotate, and the feeding roller 11 drives the material forward by friction to approach the cutting mechanism.

[0070] In another feasible implementation, the conveying assembly can also be of other structural forms. For example, the conveying assembly includes a fixture and a driving component. The driving component is used to drive the fixture to clamp or release, and to drive the fixture to move to convey the material. When the fixture is in the released state, the material is passed through the fixture, and then the fixture clamps the material. Subsequently, the fixture drives the material to move, thus realizing the conveyance of the material.

[0071] In a possible design, the automatic cutting device further includes a guiding mechanism. The guiding mechanism includes a guiding wheel set. The guiding wheel set includes two first rollers 71 arranged at intervals, and the two first rollers 71 are respectively arranged on both sides of the material conveying path. The axes of the two first rollers 71 are both in the vertical direction. The two first rollers 71 are both rotatably installed above the horizontal support plate 51 and are located in front of the pressure roller 12 and the feeding roller 11. The two first rollers 71 are respectively located on both sides of the material, providing lateral limitation for the material. When the material moves forward driven by the feeding roller 11, the two first rollers 71 rotate under the action of the material to reduce the friction with the material.

[0072] Optionally, the guiding mechanism can also include two second rollers. The axes of the two second rollers are both in the vertical direction. The two second rollers are both installed on the bracket 53, and the two second rollers are located behind the two first rollers 71 and in front of the two cutting blades.

[0073] Optionally, the guiding mechanism can also include a guiding ring 72. The guiding ring 72 is fixed to one end of the horizontal support plate 51 through a support seat 73. The guiding ring 72 is arranged at an interval from the first roller 71, and the material can pass through the hollow cavity of the guiding ring 72 and extend forward towards the direction of the two first rollers 71.

[0074] In summary, through the guiding ring 72, the first rollers 71, the second rollers, the pressure roller 12, and the feeding roller 11, the material can be guided and limited at multiple locations.

[0075] In a possible design, the cutter structure includes a single cutter and a support table, such as a guillotine knife, that is, the number of cutters is one. The material cutting mechanism further includes a cutting driver connected to the cutter for driving the cutter to move closer to or away from the support table. The material is located between the cutter and the support table, and one side of the material contacts the support table. The cutting driver drives the cutter to move towards the side close to the support table to cut the material.

[0076] Alternatively, in another possible design, the cutter structure includes double cutters, that is, the number of cutters is two, and the two cutters are arranged oppositely with their cutting edges facing each other. The material cutting mechanism further includes a cutting driver and a transmission component. The cutting driver is respectively connected to the two cutters through the transmission component, and the cutting driver is used to drive the two cutters to move relatively closer or apart. With such an arrangement, during the cutting process, the two cutters move relatively to cut the material from both sides simultaneously, with high cutting efficiency.

[0077] As Figures 7 - 11 shown, in a possible design, the cutting driver includes a cutting motor 21; the transmission component includes a slide rail 22 and two sliding structures 23. Each sliding structure 23 is slidably assembled on the slide rail 22, and the two sliding structures 23 are respectively connected to the two cutters in a one-to-one correspondence. An eccentric wheel 24 is rotatably connected to each sliding structure 23, and each eccentric wheel 24 is sleeved and fixed on the output shaft of the cutting motor 21. The rotation of the output shaft of the cutting motor 21 can drive the two sliding structures 23 to move in opposite directions along the slide rail 22.

[0078] Optionally, the output shaft of the cutting motor 21 can be directly connected to the eccentric wheel 24, or the output shaft of the cutting motor 21 is connected to the transfer rod 26 via a second coupling, and the transfer rod 26 is fixedly connected to the eccentric wheel 24. Specifically, the eccentric wheel 24 and the transfer rod 26 can be arranged in a split type, but are fixedly connected. Alternatively, the eccentric wheel 24 and the transfer rod 26 are an integral structure, manufactured by an integral molding process. The eccentric wheel 24 is rotatably connected to the corresponding sliding structure 23 via a second bearing. With such an arrangement, during the rotation of the output shaft, the eccentric wheel 24 rotates relative to the sliding structure 23. Since the eccentric wheel 24 has the characteristic of an eccentric arrangement, it can drive the sliding structure 23 to move up and down during the rotation of the eccentric wheel 24. Specifically, the distance between one side of the outer edge of the eccentric wheel 24 and the axis is the largest, and 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. Among the two eccentric wheels 24, when the point of the outer edge of one eccentric wheel 24 with the largest distance from the axis is located directly above the axis, and the point of the outer edge of the other eccentric wheel 24 with the largest distance from the axis is located directly below the axis, in this way, during the synchronous rotation in the same direction, when one sliding structure 23 moves upward, the other sliding structure 23 moves downward, so that the two cutters can move relatively close to each other for cutting operation, or move relatively far away to prepare for the next cutting operation.

[0079] In a possible design, the length measuring mechanism 3 includes a micrometer, and the transmission assembly includes a push plate 27 and a transmission rod group. The push plate 27 is connected to the output shaft of the cutting motor 21 through the transmission rod group. The rotation of the output shaft can drive the push plate 27 to push the detection rod 31 of the micrometer to move away from the cutter. Specifically, during use, one end of the material contacts the end (i.e., the detection end) of the detection rod 31 of the micrometer after extending out of the gap between the two cutters. When the material moves outward, the material pushes the detection rod 31 of the micrometer to move. The detection rod 31 detects the distance that the material pushes it to move, thereby obtaining the length of the material extending to the rear side of the cutter, i.e., the cutting length of the material. When the micrometer detects that the length of the material reaches the target length, the signal is fed back to the control mechanism, and the control mechanism controls the feeding mechanism to stop feeding, so that the material stops at the 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 the direction away from the cutter. After the cutting is completed, the control mechanism controls the push plate 27 to return to its original position, and the detection rod 31 returns to its original position through its own elasticity.

[0080] Alternatively, if Figure 2As shown, the push plate 27 is provided with a through hole, and a claw 28 is installed in the through hole. Figure 12 As shown, the two ends of the claw 28 extend out of the through hole respectively, and the detection rod 31 passes through the middle area of ​​the claw 28 and extends toward the cutter. The claw 28 can move relative to the through hole within a certain range. The claw 28 includes multiple claw ends, one end of which is connected and surrounds a ring area, and there is a certain gap between the other ends (free ends) of adjacent claw ends. In a natural state, the free ends of the multiple claw ends extend to the side of the through hole away from the cutter, and the outer diameter of the free ends of the multiple claw ends is larger than the aperture of the through hole. When the push plate 27 moves in the direction away from the cutter, the push plate 27 first moves relative to the claw 28 so that the free end side of the claw 28 enters the through hole more, thereby tightening the claw 28 to clamp the detection rod 31. 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 the direction away from the cutter. When the push plate 27 moves toward the direction approaching the cutter, the claw 28 is reset under the action of its own elasticity, thereby releasing the detection rod 31, and the detection rod 31 is reset under the action of its own elasticity.

[0081] In a possible design, the transmission rod group includes a telescopic rod 291, a lifting rod 292, a rotating rod 293, a rocker rod 294, a push rod 295 and a guide rod 296. The guide rod 296 is fixedly mounted on the frame, and the push plate 27 is slidably assembled on the guide rod 296. One end of the telescopic rod 291 is movably connected to the edge area of ​​the output shaft, the rotating rod 293 is rotatably connected to the frame, and a through hole is provided on the rotating rod 293; one end of the lifting rod 292 is connected to the rotating rod 293, for driving the rotating rod 293 to rotate around the axis of the rotating rod 293, and the other end is movably connected to the lifting rod 292; one end of the rocker rod 294 is movably connected to the push rod 295, and the other end passes through the through hole, and the push rod 295 is connected to the push plate 27.

[0082] The telescopic rod 291 can be directly connected to the output shaft of the cutting motor 21, or the output shaft of the cutting motor 21 is connected to the transfer rod 26 through a coupling, one end of the transfer rod 26 is connected to a sleeve 298, and the end of the telescopic rod 291 is movably connected to the sleeve 298. Specifically, a fixed pin 297 is axially connected to the edge area (non-axial area) on the end surface of the sleeve 298, and sleeves are provided at both ends of the telescopic rod 291, and the sleeve at one end is loosely sleeved on the fixed pin 297, and the sleeve at the other end is loosely sleeved on the lifting rod 292. In this way, when the output shaft of the cutting motor 21 rotates, the sleeve 298 is driven to rotate, but the telescopic rod 291 will not be driven to rotate, and only one end of the telescopic rod 291 will be driven to make a circular motion around the axis of the sleeve 298, and the other end of the telescopic rod 291 will drive the lifting rod 292 to swing up and down. When the lifting rod 292 swings, the rotating rod 293 is driven to rotate, and the rotation of the rotating rod 293 drives the swing rod 294 to swing, so that the swing rod 294 pushes the push rod 295, and the push plate 27 is driven to move horizontally through the push rod 295.

[0083] Specifically, the axis of the sleeve body 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 relative 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 relative to the horizontal plane is variable, that is, it can swing relative 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 rod 293 is parallel to the horizontal plane and parallel to the longitudinal support plate 52. The angle of the axis of the swing rod 294 relative to the horizontal plane is variable, that is, it can swing relative to the horizontal plane, and the projection of the axis of the swing rod 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 body 298, and the axis of the guide rod 296 is parallel to the axis of the sleeve body 298.

[0084] The rotating rod 293 can be connected to the longitudinal support plate 52 through a steering fixing seat. The steering fixing seat is connected to the longitudinal support plate 52 through a fixing rod, and the rotating rod 293 is rotatably connected to the steering fixing seat through a third bearing.

[0085] In a possible design, the weight measuring mechanism includes an electronic scale 41, a receiving cup 42, a material guiding groove 43, and a counting sensor 44. The receiving cup 42 is located on the electronic scale 41. The two ends of the material guiding groove 43 are respectively communicated with the cutting mechanism and the receiving cup 42 to introduce the materials cut by the cutting mechanism into the receiving cup 42. The counting sensor 44 is used to detect the quantity of the materials passing through the material guiding groove 43. Specifically, the electronic scale 41 can be a high-precision electronic scale 41. The material guiding groove 43 can be relatively fixed to the longitudinal support plate 52 through a support member. The top end of the material guiding groove 43 is located below the gap between the two cutting blades so that the cut materials directly fall into the material guiding groove 43. The material guiding groove 43 is inclined, and the bottom end of the material guiding groove 43 is located above the receiving cup 42 so that the materials enter the receiving cup 42 under the action of their own gravity through the material guiding groove 43. The counting sensor 44 can also be fixed to the longitudinal support plate 52 through a support member. The counting sensor 44 can adopt a photoelectric sensor. When there is a material passing through the counting sensor 44, the counting sensor 44 sends a signal to the control mechanism to increase the count.

[0086] In this embodiment, the control mechanism can be a circuit board of a control circuit including a microcontroller MCU, a motor driver, and a communication interface.

[0087] For example, the gold bars can be cut by the automatic cutting equipment provided in this application. When the weight of the gold bar to be cut is 1 g and the cutting deviation is ±0.01 g, the set deviation range of ±0.01 g can be set in the control mechanism first, and the preliminary target length can be calculated according to the thickness, width, and density of the gold bar, and this target length can be set in the control mechanism. The initial cutting is performed according to the preliminary target length.

[0088] The cutting process is as follows:

[0089] The operator operates the manual adjustment mechanism 6 to lift the pressure roller 12. At this time, the cutting knife remains open, that is, the gap between the two cutting knives is relatively large.

[0090] Pass the gold strip through the material guiding ring 72 and then through the gap between the two first rollers 71, the gap between the two second rollers, and the gap between the two cutting knives, and press against the detection rod 31 of the micrometer.

[0091] The operator operates the manual adjustment mechanism 6 to lower the pressure roller 12, so as to press the gold strip tightly between the pressure roller 12 and the feeding roller 11 through the pressure roller 12 to complete the feeding.

[0092] The control mechanism controls the feeding mechanism to work to convey the gold strip backward. After the length measured by the micrometer reaches the target length, the feeding mechanism stops feeding.

[0093] The control mechanism controls the cutting mechanism to operate through the transmission component, and at the same time controls the push plate 27 to push the detection rod 31 of the micrometer, so that there is a certain gap between the detection rod 31 and the gold strip to ensure that the gold bar produced after the gold strip is cut can fall off. The cutting mechanism cuts the gold strip of the target length, and the cut part is called a gold bar.

[0094] The gold bar falls into the material guiding groove 43 and slides along the material guiding groove 43 into the receiving cup 42 on the electronic scale 41.

[0095] The electronic scale 41 weighs the gold bar and uploads the data to the control mechanism.

[0096] The control mechanism calculates the deviation between the actual weight and the target weight, calculates the target length of the next cut according to the deviation, and then performs the next feeding, cutting and weighing operations. After repeating this several times, the gap between the actual weight and the target weight of the gold bar becomes smaller and smaller, and finally the milligram-level accuracy can be achieved.

[0097] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic material cutting device, characterized in that, include: The feeding mechanism comprises a conveying assembly, wherein the conveying assembly is used to convey materials; The cutting mechanism includes a cutting blade structure, which can move to cut the material at the cutting station; A length measuring mechanism, used for detecting the length of the material extending out of the cutting station; A weight measuring mechanism is arranged at the rear side of the material conveying direction of the cutting station and is used to detect the weight of the cut material; a control mechanism, electrically connected to the feeding mechanism, the cutting mechanism, the length measuring mechanism and the weight measuring mechanism, respectively, for controlling the feeding mechanism to stop and the cutting mechanism to perform a cutting operation when the actual length measured by the length measuring mechanism is the target length; and for adjusting the target length when the actual weight measured by the weight measuring mechanism exceeds a set deviation range from the target weight; The cutting mechanism also includes a transmission assembly; The conveying assembly includes a feed roller and a pressure roller, and there is a gap between the feed roller and the pressure roller, and the gap is a conveying station. The feeding mechanism also includes a conveying driver, and the conveying driver is used to drive the feed roller to rotate; The length measuring mechanism includes a micrometer, and the transmission assembly includes a push plate and a transmission rod group. The push plate is connected to the 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 the detection rod of the micrometer to move away from the cutter. The transmission rod group includes a telescopic rod, a lifting rod, a rotating rod, a swing rod, a push rod and a guide rod; The guide rod is fixedly mounted on the frame, and the push plate is slidably mounted on the guide rod; One end of the telescopic rod is movably connected to the edge area of ​​the output shaft, the rotating rod is rotatably connected to the frame, and a through hole is provided on the rotating rod; One end of the lifting rod is connected to the rotating rod and is used to drive the rotating rod to rotate around the axis of the rotating rod, and the other end is movably connected to the telescopic rod; One end of the swing rod is movably connected to the push rod, and the other end passes through the through hole, and the push rod is connected to the push plate.

2. The automatic cutting equipment according to claim 1, characterized in that, It also includes a frame, and the feeding mechanism, the cutting mechanism and the length measuring mechanism are all installed on the frame.

3. The automatic cutting equipment according to claim 1, characterized in that It also includes a manual control mechanism, which includes a connecting rod mechanism. The connecting rod mechanism is slidably assembled on the frame, one end of the connecting rod mechanism is connected to the pressure roller, and the connecting rod mechanism can drive the pressure roller to approach or move away from the feeding roller to change the size of the gap.

4. The automatic cutting equipment according to claim 2, wherein, The cutter structure includes two cutters arranged opposite to each other, and the cutting mechanism also includes a cutting driver, which is respectively connected to the two cutters through the transmission assembly, and is used to drive the two cutters to move closer to or apart from each other.

5. The automatic material cutting device according to claim 4, characterized in that, The cutting driver includes a cutting motor; the transmission assembly includes a slide rail and two sliding structures, each of the sliding structures is slidably assembled on the slide rail, the two sliding structures are respectively connected to the two cutting knives in a one-to-one correspondence, an eccentric wheel is rotatably connected to each of the sliding structures, each of the eccentric wheels is sleeved and fixed on the output shaft of the cutting motor, and the rotation of the output shaft of the cutting motor can drive the two sliding structures to move along the slide rail.

6. The automatic cutting equipment according to any one of claims 1-5, characterized in that It further includes a material guiding mechanism, the material guiding mechanism includes a guiding wheel set, the guiding wheel set includes two first rollers arranged at intervals, and the two first rollers are respectively arranged on both sides of the material conveying path.

7. The automatic cutting equipment according to any one of claims 1-5, characterized in that The weight measuring mechanism includes an electronic scale, a receiving cup, a material guiding groove and a counting sensor, the receiving cup is located on the electronic scale, two ends of the material guiding groove are respectively communicated with the material cutting mechanism and the receiving cup to guide the material cut by the material cutting mechanism into the receiving cup, and the counting sensor is used for detecting the quantity of the material passing through the material guiding groove.

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