Automatic bar cutting device

Abstract

The invention discloses an automatic bar cutting device. The automatic bar cutting device comprises a rack, a bearing unit, a material moving unit, a positioning unit, a cutting unit, a pressing unit and a discharging part. According to the cutting device, the length and the cutting opening of the workpiece after the bar is cut can be detected, so that the machining quality is monitored in real time, and the production efficiency is improved. And the quality of the workpiece can be judged according to the quality of the front-section workpiece and the rear-section workpiece, so that judgment is more reasonable, and misjudgment is avoided. And qualified and unqualified products can be separately discharged, so that manual intervention is reduced, and subsequent treatment is more convenient.

Description

Technical Field

[0001] This invention relates to the field of cutting device technology, and more specifically, to an automated bar cutting device. Background Technology

[0002] A bar cutting device is an industrial processing equipment used to cut long bar-shaped materials (such as metals, plastics, composite materials, etc.) to predetermined dimensions. Through automated operation, it enables continuous, batch cutting operations, thereby efficiently and accurately dividing raw materials into workpieces required for subsequent production.

[0003] Existing cutting equipment typically unloads bar stock directly after cutting without timely online inspection. As a large number of cut bars are placed directly into the receiving container, some defective workpieces inevitably get mixed in. These defective pieces may have excessive dimensional deviations or uneven cut surfaces, necessitating an additional manual or mechanical sorting process to remove them. This reduces overall processing efficiency. Furthermore, manual sorting requires significant manpower and is prone to misjudgments and omissions. Mechanical sorting requires specialized equipment, increasing investment costs. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an automated bar cutting device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bar cutting device, comprising a frame, a bearing unit, a material transfer unit, a positioning unit, a cutting unit, a clamping unit, and a feeding section; the bearing unit surrounds a first bearing plate with a V-shaped cross-section and a second bearing plate with a V-shaped cross-section, with a gap between the first bearing plate and the second bearing plate; the material transfer unit includes a first translation drive unit, a first slide block, and a pusher plate connected to the first slide block via a first electric lifting rod; the positioning unit includes a second translation drive unit, a second slide block, and a positioning plate connected to the second slide block via a second electric lifting rod; the clamping unit includes a hydraulic lifting rod and a clamping plate; the feeding section includes three feeding units distributed along the length direction of the bar, each feeding unit including a third bearing plate with a V-shaped cross-section, a third electric lifting rod, and a third electric lifting rod. The system comprises an end detection unit connected to a lifting rod, an electric push rod, an end push plate connected to the electric push rod, a first abutting guide roller mounted on the end push plate, a base plate, a fourth electric lifting rod fixedly connected at one end to the base plate, a fifth electric lifting rod hinged at one end to the base plate, and a drive motor mounted on a third support plate. The other end of the fourth electric lifting rod is hinged to the third support plate, and the other end of the fifth electric lifting rod is hinged to the third support plate. The third support plate has two strip-shaped through slots, and a rotating shaft is installed in each of the strip-shaped through slots. A supporting rotating roller is installed at each of the two rotating shafts, and a passive wheel is installed at one of the rotating shafts. A drive wheel is installed at the drive motor. The end detection unit includes a lifting plate, a rotating plate hinged to the lifting plate via an elastic reset component, a second abutting guide roller mounted on the rotating plate, and an angle sensor for detecting the angle between the lifting plate and the rotating plate.

[0006] Furthermore, the first slide block is driven by the first translation drive unit.

[0007] Furthermore, the second slide is driven by the second translation drive unit.

[0008] Furthermore, the clamping plate has a V-shaped cross-section; the clamping plate is connected to the hydraulic lifting rod.

[0009] Furthermore, the drive wheel abuts against the driven wheel.

[0010] Furthermore, the unloading unit includes two fourth electric lifting rods and two fifth electric lifting rods.

[0011] Furthermore, when there is no external force, the lifting plate is perpendicular to the rotating plate.

[0012] Under the action of external force, specifically under the pressure of the workpiece, the rotating plate can deflect slightly relative to the lifting plate.

[0013] Furthermore, in the three feeding units, the ends of the third bearing plates of two adjacent feeding units are flush with each other.

[0014] Thus, when the workpiece is pushed by the end pusher, it can fall from the third support plate of the first unloading unit to the third support plate of the second unloading unit, and from the third support plate of the second unloading unit to the third support plate of the third unloading unit.

[0015] Furthermore, the three feeding units are designated as the first feeding unit, the second feeding unit, and the third feeding unit from the direction closest to the second support plate to the direction furthest from the second support plate. The horizontal position of the third support plate of the first feeding unit is higher than that of the third support plate of the second feeding unit, and the horizontal position of the third support plate of the second feeding unit is higher than that of the third support plate of the third feeding unit.

[0016] Furthermore, the length of the strip groove is greater than four-fifths of the length of the third bearing plate.

[0017] Thus, the workpiece can be supported by two supporting rotating rollers, and one of the supporting rotating rollers rotates, so that the workpiece can rotate accordingly.

[0018] Furthermore, the cutting unit includes a base, a mounting vertical plate fixedly connected to the base, a first hinge seat fixedly connected to the base, a second hinge seat fixedly connected to the mounting vertical plate, and a circular saw unit. The circular saw unit has a third hinge seat and a fourth hinge seat. The first hinge seat and the fourth hinge seat are hinged together. An electric telescopic rod is connected between the second hinge seat and the third hinge seat. One end of the electric telescopic rod is hinged to the second hinge seat, and the other end is hinged to the third hinge seat.

[0019] Furthermore, the gap can be inserted by the saw blade of the circular saw unit.

[0020] Furthermore, the pusher plate includes a first horizontal plate fixedly connected to the first electric lifting rod and a first vertical plate fixedly connected to the first horizontal plate.

[0021] Furthermore, a plurality of limiting sleeves are fixed at the first slide, and the first horizontal plate has a plurality of limiting rods that are inserted into the limiting sleeves.

[0022] This makes the lifting and lowering of the pusher plate more stable.

[0023] Furthermore, there are four of each of the limiting sleeve and limiting rod.

[0024] Furthermore, the positioning plate includes a second horizontal plate fixedly connected to the second electric lifting rod and a second vertical plate fixedly connected to the second horizontal plate.

[0025] Furthermore, the clamping unit has two components.

[0026] This allows for better clamping of the bar stock, making the cutting operation more stable.

[0027] Furthermore, it also includes a first receiving container and a second receiving container, with all three feeding units located between the first receiving container and the second receiving container.

[0028] Furthermore, both the first translation drive unit and the second translation drive unit include a mounting bracket, a lead screw motor mounted on one end of the mounting bracket, a bearing mounted on the other end of the mounting bracket, a horizontal slide rail fixed to the mounting bracket, and a lead screw connecting the lead screw motor and the bearing; both the first slide block and the second slide block have a horizontal slide groove that mates with the horizontal slide rail and a threaded hole that mates with the lead screw.

[0029] Furthermore, the mounting brackets of the first translation drive mechanism, the mounting brackets of the second translation drive mechanism, the first support plate, the second support plate, the base plate of the unloading unit, the electric push rod of the unloading unit, and the third electric lifting rod of the unloading unit are all installed on the frame.

[0030] This application also discloses a cutting and blanking method based on the cutting device described in any of the above claims. Each workpiece segment formed after the bar is cut is inspected at the first blanking unit, the second blanking unit, and the third blanking unit. Each workpiece segment is blanked at the third blanking unit to the first receiving container or the second receiving container. For a workpiece located at the third blanking unit, if the workpiece segment in front of the workpiece passes the inspection at the first, second, and third blanking units, the workpiece itself passes the inspection at the first, second, and third blanking units, and the workpiece segment behind the workpiece passes the inspection at the first and second blanking units, then the workpiece is blanked to the first receiving container; otherwise, the workpiece is blanked to the second receiving container.

[0031] Furthermore, when the workpiece is detected by the unloading unit, the workpiece is abutted by the first abutting guide roller and the second abutting guide roller, and the workpiece is supported and rotated by two supporting rotating rollers.

[0032] Furthermore, when the workpiece is inspected by the unloading unit, the included angle between the rotating plate and the lifting plate is 91 degrees.

[0033] Beneficial effects:

[0034] 1. The cutting device of this application can detect the length of the workpiece and the cut edge after the bar is cut, thereby realizing real-time monitoring of processing quality and improving production efficiency.

[0035] 2. The cutting device of this application can judge the quality of its own workpiece based on the quality of the workpieces before and after it, thus making a more reasonable judgment and avoiding incorrect judgment.

[0036] 3. The cutting device of this application can separate qualified and unqualified products for feeding, thereby reducing manual intervention and making subsequent processing more convenient. Attached Figure Description

[0037] Figure 1 This is a first-person perspective diagram of cutting a bar stock.

[0038] Figure 2 This is a magnified view of region A;

[0039] Figure 3 This is a magnified view of region B.

[0040] Figure 4 This is a second-view diagram illustrating the cutting of a bar stock.

[0041] Figure 5 This is a magnified view of region C;

[0042] Figure 6 This is a third-person perspective illustration of cutting a bar stock.

[0043] Figure 7 This is a magnified view of region D;

[0044] Figure 8 This is a schematic diagram illustrating the process of pushing a workpiece downstream.

[0045] Figure 9 This is a schematic diagram showing the workpiece being pushed downstream.

[0046] Figure 10 This is a magnified view of region E.

[0047] Explanation of reference numerals in the attached drawings: First bearing plate 1.1; Second bearing plate 1.2; First slide block 2.1; First electric lifting rod 2.2; First horizontal plate 2.3; First vertical plate 2.4; Limiting sleeve 2.5; Limiting rod 2.6; Second slide block 3.1; Second electric lifting rod 3.2; Second horizontal plate 3.3; Second vertical plate 3.4; Hydraulic lifting rod 4.1; Pressing plate 4.2; Bar 5; Workpiece 5.1; Third bearing plate 6.1; Strip groove 6.1.1; Third electric lifting rod 6.2; Electric push rod 6.3; End push plate 6.4; First 6.5 Abutting guide roller; 6.6 Base plate; 6.7 Fourth electric lifting rod; 6.8 Fifth electric lifting rod; 6.9 Drive motor; 6.9.1 Drive wheel; 6.10 Support rotating roller; 6.11 Passive wheel; 7.1 Lifting plate; 7.2 Rotating plate; 7.3 Second abutting guide roller; 8.1 Base; 8.2 Mounting vertical plate; 8.3 First hinge seat; 8.4 Cutting circular saw unit; 8.5 Third hinge seat; 8.6 Fourth hinge seat; 8.7 Electric telescopic rod; 9 First receiving container; 10 Second receiving container; 11.1 Mounting frame; 11.2 Lead screw. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0049] This invention provides an automated bar cutting device as shown in the figure, including a frame, a support unit, a material transfer unit, a positioning unit, a cutting unit, a clamping unit, and a feeding section; the support unit surrounds a first support plate 1.1 with a V-shaped cross-section and a second support plate 1.2 with a V-shaped cross-section, with a gap between the first support plate 1.1 and the second support plate 1.2; the material transfer unit includes a first translation drive unit, a first slide 2.1 driven by the first translation drive unit, and a pusher plate connected to the first slide 2.1 via a first electric lifting rod 2.2; The positioning unit includes a second translation drive unit, a second slide 3.1 driven by the second translation drive unit, and a positioning plate connected to the second slide 3.1 via a second electric lifting rod 3.2; the clamping unit includes a hydraulic lifting rod 4.1 and a clamping plate 4.2 with a V-shaped cross-section connected to the hydraulic lifting rod 4.1; the unloading section includes three unloading units distributed along the length of the bar 5, each unloading unit including a third bearing plate 6.1 with a V-shaped cross-section, a third electric lifting rod 6.2, an end detection unit connected to the third electric lifting rod 6.2, and an electric... The system comprises a push rod 6.3, an end push plate 6.4 connected to the electric push rod 6.3, a first abutting guide roller 6.5 mounted on the end push plate 6.4, a base plate 6.6, a fourth electric lifting rod 6.7 fixedly connected to the base plate 6.6 at one end, a fifth electric lifting rod 6.8 hinged to the base plate 6.6 at one end, and a drive motor 6.9 mounted on the third support plate 6.1. The other end of the fourth electric lifting rod 6.7 is hinged to the third support plate 6.1, and the other end of the fifth electric lifting rod 6.8 is hinged to the third support plate 6.1. The third support plate 6.1 has two... A strip-shaped through groove 6.1.1 is provided, with a rotating shaft installed at the strip-shaped through groove 6.1.1. Two supporting rotating rollers 6.10 are installed at the two rotating shafts, and a driven wheel 6.11 is installed at one of the rotating shafts. A drive wheel 6.9.1 is installed at the drive motor 6.9 to abut against the driven wheel 6.11. The end detection unit includes a lifting plate 7.1, a rotating plate 7.2 hinged to the lifting plate 7.1 by an elastic reset component, a second abutting guide roller 7.3 installed at the rotating plate 7.2, and an angle sensor for detecting the angle between the lifting plate 7.1 and the rotating plate 7.2.

[0050] The feeding unit includes two fourth electric lifting rods 6.7 and two fifth electric lifting rods 6.8; when there is no external force, the lifting plate 7.1 is perpendicular to the rotating plate 7.2. In the three feeding units, the ends of the third bearing plates 6.1 of two adjacent feeding units are flush. The three feeding units, from the direction closest to the second bearing plate 1.2 to the direction furthest from the second bearing plate 1.2, are respectively the first feeding unit, the second feeding unit, and the third feeding unit. The horizontal position of the third bearing plate 6.1 of the first feeding unit is higher than that of the third bearing plate 6.1 of the second feeding unit, and vice versa. The length of the strip groove 6.1.1 is greater than four-fifths of the length of the third bearing plate 6.1. The cutting unit includes a base 8.1, a mounting plate 8.2 fixedly connected to the base 8.1, a first hinge seat 8.3 fixedly connected to the base 8.1, a second hinge seat fixedly connected to the mounting plate 8.2, and a circular saw unit 8.4. The circular saw unit 8.4 has a third hinge seat 8.5 and a fourth hinge seat 8.6. The first hinge seat 8.3 and the fourth hinge seat 8.6 are hinged together. An electric telescopic rod 8.7 is connected between the second hinge seat and the third hinge seat 8.5. One end of the electric telescopic rod 8.7 is hinged to the second hinge seat, and the other end is hinged to the third hinge seat 8.5. The gap can be inserted by the saw blade of the circular saw unit 8.4. The pusher plate includes a first horizontal plate 2.3 fixedly connected to the first electric lifting rod 2.2 and a first vertical plate 2.4 fixedly connected to the first horizontal plate 2.3; a plurality of limiting sleeves 2.5 are fixed at the first slide block 2.1, and the first horizontal plate 2.3 has a plurality of limiting rods 2.6 inserted into the limiting sleeves 2.5. There are four limiting sleeves 2.5 and four limiting rods 2.6. The positioning plate includes a second horizontal plate 3.3 fixedly connected to the second electric lifting rod 3.2 and a second vertical plate 3.4 fixedly connected to the second horizontal plate 3.3; there are two clamping units. The bar cutting device of this application also includes a first receiving container 9 and a second receiving container 10, and the three unloading units are all located between the first receiving container 9 and the second receiving container 10. The first translation drive unit and the second translation drive unit both include a mounting bracket 11.1, a lead screw motor mounted on one end of the mounting bracket 11.1, a bearing mounted on the other end of the mounting bracket 11.1, a horizontal slide rail fixed to the mounting bracket, and a lead screw 11.2 connecting the lead screw motor and the bearing; the first slide block 2.1 and the second slide block 3.1 both have a horizontal slide groove that mates with the horizontal slide rail and a threaded hole that mates with the lead screw 11.2.

[0051] Working principle: In the bar cutting device of this application, the bar can be placed on the first support plate, and as... Figure 1As shown, under the action of the pusher plate, the bar can move towards the lower part of the material. During the movement, one end of the bar is positioned by the positioning plate. The pusher plate pushes the bar to one end to abut against the positioning plate. Then, the clamping unit clamps the bar. Finally, the circular saw unit cuts the bar, thereby cutting it off.

[0052] After the bar is cut, the front end forms a workpiece. Then, the pusher plate continues to push the bar towards the lower part of the material. Under the push of the front end of the bar, the workpiece falls from the second support plate to the third support plate of the first feeding unit. At the feeding unit, under the action of the end pusher plate, one end of the workpiece abuts against the second abutting guide roller, and the other end abuts against the first abutting guide roller. Specifically, the first abutting guide roller pushes one end of the workpiece until the other end of the workpiece abuts against the second abutting guide roller. An angle sensor can accurately determine whether the end of the workpiece is pressing against the second abutting guide roller. Specifically, the electric push rod pushes the workpiece, and the workpiece pushes the rotating plate, so that the angle between the rotating plate and the lifting plate reaches 91 degrees (it can also be set to other angles, such as 92 degrees). At this time, the workpiece is clamped between the first abutting guide roller and the second abutting guide roller. The extension length of the electric push rod can be used to determine whether the length of the workpiece is qualified. At this point, the length of the electric push rod is locked, the drive motor is turned on, and the drive wheel drives the driven wheel to rotate, thereby rotating one of the support rollers and thus rotating the workpiece. If the workpiece's cut surface is flat, the rotating plate and the lifting plate will remain perpendicular. When the workpiece's end cut surface is uneven (e.g., protrusions or depressions), the protrusions and depressions will cause the angle of the rotating plate to change, which will be detected by the angle sensor. Based on the measurement value of the angle sensor, it can be determined whether the workpiece's cut surface is flat.

[0053] This application has three unloading units, and the workpiece is inspected for length and end flatness at each unloading unit. In other words, the cut workpiece is inspected three times. When the workpiece reaches the third unloading unit, it is unloaded. The extension and retraction of the fourth and fifth electric lifting rods determine whether the workpiece is unloaded into the first or second receiving container. Normally, when a workpiece is at the third unloading unit, the section preceding it has been inspected by the first, second, and third unloading units, and the section following it has been inspected by the first and second unloading units. For a workpiece, only if the section preceding it passes all three inspections, the section following it passes all three inspections, and the section following it passes the first and second unloading units, is the workpiece unloaded into the first receiving container (the receiving container for qualified workpieces). Otherwise, the workpiece is unloaded into the second receiving container (the receiving container for unqualified workpieces). Therefore, for each workpiece, its qualification can be judged by comprehensively considering the quality of the workpiece before and after it, because the flatness of the cut surface of each workpiece is highly correlated with the cut surface conditions of the workpieces before and after it.

[0054] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. An automated bar cutting device, characterized in that, The system includes a frame, a support unit, a material transfer unit, a positioning unit, a cutting unit, a clamping unit, and a blanking section. The support unit surrounds a first support plate with a V-shaped cross-section and a second support plate with a V-shaped cross-section, with a gap between the two plates. The material transfer unit includes a first translation drive unit, a first slide, and a pusher plate connected to the first slide via a first electric lifting rod. The positioning unit includes a second translation drive unit, a second slide, and a positioning plate connected to the second slide via a second electric lifting rod. The clamping unit includes a hydraulic lifting rod and a clamping plate. The blanking section includes three blanking units distributed along the length of the bar, each blanking unit including a third support plate with a V-shaped cross-section, a third electric lifting rod, an end detection unit connected to the third electric lifting rod, and an electric... The system comprises a push rod, an end push plate connected to the electric push rod, a first abutting guide roller mounted on the end push plate, a base plate, a fourth electric lifting rod fixedly connected to the base plate at one end, a fifth electric lifting rod hinged to the base plate at one end, and a drive motor mounted on a third support plate. The other end of the fourth electric lifting rod is hinged to the third support plate, and the other end of the fifth electric lifting rod is hinged to the third support plate. The third support plate has two strip-shaped through slots, and a rotating shaft is installed in each of the strip-shaped through slots. A supporting rotating roller is installed at each of the two rotating shafts, and a passive wheel is installed at one of the rotating shafts. A drive wheel is installed at the drive motor. The end detection unit includes a lifting plate, a rotating plate hinged to the lifting plate via an elastic reset component, a second abutting guide roller mounted on the rotating plate, and an angle sensor for detecting the angle between the lifting plate and the rotating plate.

2. The automated bar cutting device according to claim 1, characterized in that, The unloading unit includes two fourth electric lifting rods and two fifth electric lifting rods; when there is no external force, the lifting plate is perpendicular to the rotating plate.

3. The automated bar cutting device according to claim 1, characterized in that, In the three feeding units, the ends of the third bearing plates of two adjacent feeding units are flush with each other.

4. The automated bar cutting device according to claim 1, characterized in that, The three feeding units are designated as the first feeding unit, the second feeding unit, and the third feeding unit from the direction closest to the second support plate to the direction furthest from the second support plate. The horizontal position of the third support plate of the first feeding unit is higher than that of the third support plate of the second feeding unit, and the horizontal position of the third support plate of the second feeding unit is higher than that of the third support plate of the third feeding unit.

5. The automated bar cutting device according to claim 1, characterized in that, The length of the strip groove is greater than four-fifths of the length of the third bearing plate.

6. The automated bar cutting device according to claim 1, characterized in that, The cutting unit includes a base, a mounting plate fixedly connected to the base, a first hinge seat fixedly connected to the base, a second hinge seat fixedly connected to the mounting plate, and a circular saw unit. The circular saw unit has a third hinge seat and a fourth hinge seat. The first hinge seat and the fourth hinge seat are hinged together. An electric telescopic rod is connected between the second hinge seat and the third hinge seat. One end of the electric telescopic rod is hinged to the second hinge seat, and the other end is hinged to the third hinge seat. The gap can be inserted by the saw blade of the circular saw unit.

7. The automated bar cutting device according to claim 1, characterized in that, The pusher plate includes a first horizontal plate fixedly connected to the first electric lifting rod and a first vertical plate fixedly connected to the first horizontal plate; a plurality of limiting sleeves are fixed at the first slide, and the first horizontal plate has a plurality of limiting rods that are inserted into the limiting sleeves.

8. The automated bar cutting device according to claim 1, characterized in that, The positioning plate includes a second horizontal plate fixedly connected to the second electric lifting rod and a second vertical plate fixedly connected to the second horizontal plate; the clamping unit has two.

9. The automated bar cutting device according to claim 1, characterized in that, It also includes a first receiving container and a second receiving container, with all three feeding units located between the first receiving container and the second receiving container.

10. The automated bar cutting device according to claim 1, characterized in that, The first translation drive unit and the second translation drive unit both include a mounting frame, a lead screw motor mounted on one end of the mounting frame, a bearing mounted on the other end of the mounting frame, a horizontal slide rail fixed to the mounting frame, and a lead screw connecting the lead screw motor and the bearing; the first slide and the second slide both have a horizontal slide groove that mates with the horizontal slide rail and a threaded hole that mates with the lead screw.

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