Fast material changing device for feeder skip car

Abstract

The utility model relates to the field of chips, in particular to a fast material changing device for a feeder skip car, which comprises an idle wheel mechanism and a power lock, the idle wheel mechanism is rotatably arranged on a feeding trolley, one end of the power lock is used for being fixed on a machine body, and the idle wheel mechanism comprises at least two idle wheels; the power lock comprises a front-end fixing piece, an inner connecting piece and an air cylinder, the front-end fixing piece and the air cylinder are fixedly arranged, an output shaft of the air cylinder is fixedly connected with the inner connecting piece, the two ends of the inner connecting piece are fixedly connected with a front-end locking opening and a rear-end locking opening respectively, and the front-end locking opening and the rear-end locking opening are rotationally matched with the front-end fixing piece; the front end locking opening and the rear end locking opening are both arranged in a hook shape. The air cylinder is used for driving the inner connecting piece to move in the direction close to or away from the feeding trolley, so that the front end locking opening and the rear end locking opening are separated from the two idle wheels respectively or lock the two idle wheels, the feeding trolley is in a free state or a locked state, and by means of the technical scheme, the feeding trolley has the advantage that the disassembling and assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a material changing device, in particular to a quick material changing device for a feeder vehicle. Background Art

[0002] With the rapid development of electronic products, SMT (Surface Mount Technology) technology has replaced the conventional through-hole method as a commonly used component placement method. Conventional placement machine loading carriage mechanisms are mostly fixed with bolts, which are difficult and time-consuming to disassemble, seriously affecting the work progress of the placement machine, thereby reducing the placement work efficiency. Utility Model Content

[0003] The utility model provides a quick material changing device for a feeder trolley, which solves the technical problems of long disassembly time and low work efficiency, and provides the following technical solutions:

[0004] A feeder trolley rapid material change device includes an idler mechanism and a power lock. The idler mechanism is rotatably mounted on the feed trolley. One end of the power lock is fixed to the machine body. The device is characterized in that the idler mechanism includes at least two idlers arranged in sequence, and the center line connecting the two idlers is arranged in an inclined shape.

[0005] The power lock includes a front fixing member, an inner connecting member and a cylinder, wherein the front fixing member and the cylinder are fixedly arranged on the machine body, the output shaft of the cylinder is fixedly connected to the middle part of the inner connecting member, and the two ends of the inner connecting member in the length direction are respectively fixedly connected with the front locking opening and the rear locking opening, and the front locking opening and the rear locking opening are both rotatably matched with the front fixing member;

[0006] When the feeding trolley moves to one side of the machine body, the front end locking opening and the rear end locking opening correspond to the positions of the two idler wheels respectively, and the front end locking opening and the rear end locking opening are both arranged in a hook shape;

[0007] The cylinder is used to drive the inner connecting part to move toward or away from the feeding trolley, so that the front end lock and the rear end lock are respectively disengaged from or locked on the two idle wheels, so that the feeding trolley is in a free state or a locked state.

[0008] By adopting the above technical solution and setting the power lock and idler wheel mechanism, when the feeding trolley needs to be installed, the power lock is in the unlocked state. At this time, the outer top surfaces of the front lock opening and the rear lock opening are lower than the bottom surface of the idler wheel, which facilitates the entry of the feeding trolley. The cylinder drives the inner connecting part to move in the direction close to the cylinder, and the inner connecting part drives the front lock opening and the rear lock opening to rotate. The rotation position of the front lock opening is the hinge point of the front lock opening and the front fixing part, and the rotation position of the rear lock opening is the hinge point of the rear lock opening and the front fixing part, so that the front lock opening and the rear lock opening respectively lock the two idler wheels, thereby completing the installation of the feeding trolley.

[0009] When the trolley is disassembled, the cylinder drives the inner connecting piece to move away from the cylinder, and the inner connecting piece drives the front lock and the rear lock to rotate. The rotation position of the front lock is the hinge point between the front lock and the front fixing piece, and the rotation position of the rear lock is the hinge point between the rear lock and the front fixing piece, so that the front lock and the rear lock are respectively disengaged from the two idler wheels, and the outer top surfaces of the front lock and the rear lock are lower than the bottom surface of the idler wheels, which makes it easy to tow away the feeding trolley for replacement;

[0010] The disassembly structure of the feeding trolley is simple and quick, thereby speeding up the replacement rate of the feeding trolley, and the simple structure can speed up the working efficiency of the entire chip mounting.

[0011] Furthermore, it also includes a positioning assembly and a positioning column; the positioning assembly includes a positioning fixing block, a positioning pin and a positioning embedded block, one end of the positioning pin is fixedly arranged at the lower part of the positioning fixing block, and the other end of the positioning pin is inserted into the positioning hole on the machine body, the positioning fixing block is fixedly arranged on the machine body on one side of the power lock, a through hole is provided on the positioning fixing block, and a mounting block is provided on one side of the positioning embedded block, the mounting block is adaptively arranged in the through hole, a first notch is provided on the mounting block, and the first notch extends to the outside of the positioning embedded block; the positioning column is fixedly arranged on the side wall surface of the feeding trolley close to the positioning assembly, and the diameter of the positioning column is smaller than the width value of the first notch, so that the positioning column is inserted into the first notch.

[0012] By adopting the above technical solution, through the setting of the positioning assembly and the positioning column, when installing the feeding trolley, the feeding trolley can be pushed so that the positioning column on it is inserted into the first notch in the positioning assembly. This can quickly complete the positioning and limiting of the feeding trolley, ensuring that the subsequent power lock can lock the idler wheel, thereby speeding up the replacement rate of the feeding trolley and thus speeding up the work efficiency of chip mounting.

[0013] Furthermore, a guide rail is provided on the feeding trolley on the same side of the idler mechanism, and the other end of the guide rail extends out of the feeding trolley. The guide rail is fixedly arranged below the idler mechanism, and the guide rail is arranged along the length direction of the inner connecting member, and a groove is provided in the middle part along the length direction of the guide rail; a guide shaft is fixedly provided on the machine body, and the other end of the guide shaft extends out of the machine body, and the guide shaft is arranged in the groove along the length direction of the guide rail.

[0014] By adopting the above technical solution, through the setting of guide rails and guide shafts, it is possible to limit the position when installing the feeding trolley, so as to ensure the position accuracy of the feeding trolley, and then ensure that the power lock can lock the two idle wheels, thereby speeding up the installation speed of the feeding trolley.

[0015] Furthermore, a column is fixedly provided on the machine body, a support plate is fixedly connected to the side wall of the column, a sensor is provided on the support plate, the sensor is fixedly installed on the side wall of the support plate close to the positioning assembly through a sensor bracket, and a speed regulating valve is provided on the cylinder; the front end fixing piece is parallel and arranged in parallel on one side of the support plate to form a gap between the support plate and the front end fixing piece, and the front end fixing piece and the support plate are fixedly connected, the inner connecting piece and the front end fixing piece are rotatably matched, and the inner connecting piece, the front end lock port and the rear end lock port are all arranged in the gap.

[0016] By adopting the above technical solution, through the setting of sensors and speed control valves, the sensors can detect the specific positions of the internal connecting parts. When it is necessary to adjust the positions of the internal connecting parts and complete fine and precise adjustments to the positions of the front and rear locking ports, the speed control valve can be used to accurately control the extension and retraction speed of the cylinder to ensure that the power lock can lock the two idle wheels, thereby speeding up the installation rate of the feeding trolley.

[0017] Furthermore, one end of the cylinder away from the inner connecting piece is fixedly connected to a rear end fixing piece, and the other end of the rear end fixing piece is fixedly set on the machine body; the output shaft of the cylinder is connected to a connecting earring, and the other end of the connecting earring is fixedly connected to the inner connecting piece.

[0018] Furthermore, a first protrusion and a second protrusion are provided on the side wall surface in the length direction of the support plate, the first protrusion is fixedly provided at one end of the support plate close to the cylinder, and the second protrusion is fixedly provided at one end of the support plate away from the cylinder, and the other side wall surfaces of the first protrusion and the second protrusion are fixedly connected to the front end fixing member.

[0019] Furthermore, a second notch is provided on the outer wall surface of the guide shaft close to the machine body, so that the side wall surface of the guide shaft close to the machine body is vertically arranged; there are two guide fixing plates on the machine body, both of which are arranged in an "L" shape, and the two guide fixing plates both include a first fixing section and a second fixing section, the two first fixing sections are fixedly connected to the machine body, and the two second fixing sections are fixedly connected to the guide shaft.

[0020] In summary, this application has the following beneficial effects:

[0021] 1. Through the setting of the power lock and idler wheel mechanism, when the feeding trolley needs to be installed, the power lock is in the unlocked state. At this time, the outer top surfaces of the front lock opening and the rear lock opening are lower than the bottom surface of the idler wheel, which facilitates the entry of the feeding trolley. The cylinder drives the inner connecting piece to move toward the cylinder, and the inner connecting piece drives the front lock opening and the rear lock opening to rotate. The rotation position of the front lock opening is the hinge point of the front lock opening and the front fixing piece, and the rotation position of the rear lock opening is the hinge point of the rear lock opening and the front fixing piece, so that the front lock opening and the rear lock opening respectively lock the two idler wheels, thereby completing the installation of the feeding trolley;

[0022] When the trolley is disassembled, the cylinder drives the inner connecting piece to move away from the cylinder, and the inner connecting piece drives the front lock and the rear lock to rotate. The rotation position of the front lock is the hinge point between the front lock and the front fixing piece, and the rotation position of the rear lock is the hinge point between the rear lock and the front fixing piece, so that the front lock and the rear lock are respectively disengaged from the two idler wheels, and the outer top surfaces of the front lock and the rear lock are lower than the bottom surface of the idler wheels, which makes it easy to tow away the feeding trolley for replacement;

[0023] The disassembly structure of the feeding trolley is simple and quick, which can speed up the replacement rate of the feeding trolley. The simple structure can speed up the efficiency of the entire chip placement work.

[0024] 2. Through the setting of the positioning assembly and the positioning column, when installing the feed trolley, the feed trolley can be pushed so that the positioning column on it is inserted into the first notch of the positioning assembly. This can quickly complete the positioning and limiting of the feed trolley, ensuring that the subsequent power lock can lock the idler wheel, thereby speeding up the replacement rate of the feed trolley and improving the efficiency of chip placement.

[0025] 3. By setting the guide rail and guide shaft, the feeding trolley can be limited when it is installed, so as to ensure the position accuracy of the feeding trolley, and then ensure that the power lock can lock the two idle wheels, thereby speeding up the installation speed of the feeding trolley;

[0026] 4. Through the setting of sensors and speed control valves, the sensors can detect the specific positions of the internal connectors. When the positions of the internal connectors need to be adjusted to complete fine and precise adjustments to the front and rear end locks, the speed control valve can be used to accurately control the extension and retraction speed of the cylinder to ensure that the power lock can lock the two idler wheels, thereby speeding up the installation speed of the feeding trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of a feeder car rapid material changing device;

[0028] Figure 2 This is a schematic diagram of the structure of the machine body in a quick material changing device for a feeder;

[0029] Figure 3 This is a structural diagram of a feeding trolley in a feeder trolley rapid material changing device;

[0030] Figure 4 This is a schematic diagram of the structure of a power lock in a quick material changing device for a feeder car;

[0031] Figure 5 This is a schematic diagram of the exploded structure of a positioning component in a rapid material changing device for a feeder car;

[0032] Figure 6 This is a schematic diagram of the structure of a guide shaft in a quick material changing device of a feeder car;

[0033] Figure 7 A side view of a feeder trolley rapid material change device with a power lock in an unlocked state;

[0034] Figure 8 A side view of a feeder trolley rapid material change device with a power lock in a locked state;

[0035] Figure 9 for Figure 2 A partial enlarged schematic diagram of the middle serial number A;

[0036] In the figure: 1. Feed trolley; 2. Machine body; 3. Idle wheel; 4. Front end fixing piece; 5. Inner connecting piece; 6. Cylinder; 7. Front end lock; 8. Rear end lock; 9. Positioning assembly; 901. Positioning fixing block; 902. Positioning pin; 903. Positioning embedded block; 10. Positioning column; 11. Through hole; 12. Mounting block; 13. First notch; 14. Guide rail; 15. Groove; 16. Guide shaft; 17. Column; 18. Support plate; 19. Sensor; 20. Sensor bracket; 21. Speed ​​control valve; 22. Rear end fixing piece; 23. Connecting earring; 24. First protrusion; 25. Second protrusion; 26. Second notch; 27. Guide fixing plate; 28. Third notch; 29. ​​Fourth notch. DETAILED DESCRIPTION

[0037] The present application is further described in detail below with reference to the accompanying drawings.

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0039] In specific embodiment 1, referring to Figure 1-9 A quick material changing device for a feeder trolley includes an idler mechanism and a power lock. The idler mechanism is rotatably arranged on a feed trolley 1. One end of the power lock is used to be fixed to a machine body 2. The idler mechanism includes at least two idler wheels 3 arranged in sequence. The center line connecting the two idler wheels 3 is arranged in an inclined shape.

[0040] The feeding trolley 1 includes a trolley body. The specific structure of the feeding trolley 1 belongs to the prior art and will not be described in detail here. The machine body 2 includes a main frame. One end of the main frame has a third notch 28 for parking the feeding trolley 1. The specific structure of the machine body 2 belongs to the prior art and will not be described in detail here. The specific structure and installation method of the idler wheel mechanism also belong to the prior art and will not be described in detail here.

[0041] In this specific embodiment, two idler mechanisms and two power locks are provided. A fourth notch 29 is provided on the corresponding machine body 2 above the third notch 28. The two fourth notches 29 are respectively provided at both ends of the width direction of the machine body 2. The two power locks are respectively provided in the fourth notches 29. The two idler mechanisms are respectively provided on the two side walls of the feeding trolley 1. When the feeding trolley 1 is pushed into the third notch 28, the idler mechanisms on the two side walls of the feeding trolley 1 face a power lock respectively. The two idler mechanisms and the two power locks are symmetrically provided.

[0042] The power lock includes a front fixing member 4, an inner connecting member 5 and a cylinder 6. A support plate 18 is fixedly provided on the machine body 2. The front fixing member 4 and the support plate 18 are fixedly connected. The cylinder 6 is fixedly provided on the machine body 2. The output shaft of the cylinder 6 is fixedly connected to the middle part of the inner connecting member 5. The specific structure of the cylinder 6 belongs to the prior art and will not be described in detail here. The two ends of the inner connecting member 5 in the longitudinal direction are respectively fixedly connected with the front lock mouth 7 and the rear lock mouth 8, and the front lock mouth 7 and the rear lock mouth 8 are both rotatably matched with the front fixing member 4.

[0043] When the feeding trolley 1 moves to one side of the machine body 2, the front lock 7 and the rear lock 8 correspond to the positions of the two idler wheels 3 respectively, and the front lock 7 and the rear lock 8 are both hook-shaped;

[0044] The cylinder 6 is used to drive the inner connecting part 5 to move toward or away from the feeding trolley 1, so that the front lock 7 and the rear lock 8 are disengaged from or locked on the two idle wheels 3, respectively, so that the feeding trolley 1 is in a free state or a locked state.

[0045] When the feeding trolley 1 needs to be installed, the power lock is in the unlocked state. At this time, the outer top surfaces of the front lock opening 7 and the rear lock opening 8 are lower than the bottom surface of the idler wheel 3, which facilitates the entry of the feeding trolley 1. The cylinder 6 drives the inner connecting part 5 to move toward the direction close to the cylinder 6, and the inner connecting part 5 drives the front lock opening 7 and the rear lock opening 8 to rotate respectively. The rotation position of the front lock opening 7 is the hinge point of the front lock opening 7 and the front fixing part 4, and the rotation position of the rear lock opening 8 is the hinge point of the rear lock opening 8 and the front fixing part 4, so that the front lock opening 7 and the rear lock opening 8 respectively lock the two idler wheels 3, thereby completing the installation of the feeding trolley 1;

[0046] When the trolley is disassembled, the cylinder 6 drives the inner connecting part 5 to move in the direction away from the cylinder 6, and the inner connecting part 5 drives the front end lock 7 and the rear end lock 8 to rotate respectively. The rotation position of the front end lock 7 is the hinge of the front end lock 7 and the front end fixing part 4, and the rotation position of the rear end lock 8 is the hinge of the rear end lock 8 and the front end fixing part 4, so that the front end lock 7 and the rear end lock 8 are respectively disengaged from the two idler wheels 3, and the outer top surfaces of the front end lock 7 and the rear end lock 8 are lower than the bottom surface of the idler wheel 3, thereby facilitating the replacement after the feeding trolley 1 is towed away;

[0047] The disassembly structure of the feeding trolley 1 is simple and quick, thereby speeding up the replacement rate of the feeding trolley 1 , and the simple structure can speed up the working efficiency of the entire chip mounting.

[0048] like Figure 2 、 3 As shown in , 5, a quick material changing device for a feeder trolley further includes a positioning assembly 9 and a positioning column 10; in this specific embodiment, two positioning assemblies 9 and two positioning columns 10 are provided; the positioning assembly 9 includes a positioning fixing block 901, a positioning pin 902 and a positioning embedded block 903, one end of the positioning pin 902 is fixedly arranged at the lower part of the positioning fixing block 901, and the other end of the positioning pin 902 is inserted into the positioning hole on the machine body 2, the positioning fixing block 901 is fixedly arranged on the machine body 2 on one side of the power lock, a through hole 11 is provided on the positioning fixing block 901, and a mounting block 12 is provided on one side of the positioning embedded block 903, the mounting block 12 is adaptively arranged in the through hole 11, a first notch 13 is provided on the mounting block 12, and the first notch 13 extends to the outside of the positioning embedded block 903; the positioning column 10 is fixedly arranged on the side wall surface of the feeding trolley 1 near the positioning assembly 9, and the diameter of the positioning column 10 is smaller than the width value of the first notch 13, so that the positioning column 10 is inserted into the first notch 13;

[0049] When installing the feeding trolley 1, the feeding trolley 1 can be pushed so that the positioning column 10 on it is inserted into the first notch 13 in the positioning assembly 9. This can quickly complete the positioning and limiting of the feeding trolley 1, ensuring that the subsequent power lock can lock the idler wheel 3, thereby speeding up the replacement rate of the feeding trolley 1 and thus speeding up the work efficiency of chip mounting.

[0050] like Figure 1 、 3 As shown, a guide rail 14 is provided on the feeding trolley 1 on the same side of the idler mechanism, and the other end of the guide rail 14 extends out of the feeding trolley 1. The guide rail 14 is fixedly arranged below the idler mechanism, and is arranged along the length direction of the inner connecting member 5. A groove 15 is provided in the middle of the length direction of the guide rail 14; a guide shaft 16 is fixedly provided on the machine body 2, and the other end of the guide shaft 16 extends out of the machine body 2. The guide shaft 16 is arranged in the groove 15 along the length direction of the guide rail 14; in this specific embodiment, two guide rails 14 and two guide shafts 16 are provided, and are respectively arranged on the same side as the two idler mechanisms;

[0051] The guide rail 14 and the guide shaft 16 can be limited when the feeding trolley 1 is installed, so as to ensure the position accuracy of the feeding trolley 1, and then ensure that the power lock can lock the two idle wheels 3, thereby speeding up the installation speed of the feeding trolley 1.

[0052] like Figure 1 、 4 As shown in , 7 and 8, a column 17 is fixedly provided on the machine body 2, a support plate 18 is fixedly provided on the side wall of the column 17, a sensor 19 is provided on the support plate 18, and the sensor 19 is fixedly installed on the side wall of the support plate 18 near the positioning assembly 9 through a sensor bracket 20, and a speed regulating valve 21 is provided on the cylinder 6; the front end fixing member 4 is arranged in parallel and parallel at intervals on one side of the support plate 18, so that a gap is formed between the support plate 18 and the front end fixing member 4, and the front end fixing member 4 and the support plate 18 are fixedly connected, the inner connecting member 5 and the front end fixing member 4 are rotatably matched, and the inner connecting member 5, the front end lock 7 and the rear end lock 8 are all arranged in the gap; in this specific embodiment, two columns 17 with the same structure are provided on the machine body 2, and the two columns 17 are respectively arranged on the top of the machine body 2 corresponding to the side away from each other in the two fourth notches 29, and the two support plates 18 are respectively fixed to the columns 17 on one side by bolts;

[0053] The sensor 19 can detect the specific position of the internal connecting part 5. When it is necessary to adjust the position of the internal connecting part 5 and complete the fine and precise adjustment of the position of the front lock mouth 7 and the rear end lock mouth 8, the speed regulating valve 21 can be used to accurately control the extension and retraction speed of the cylinder 6 to ensure that the power lock can lock the two idle wheels 3, thereby speeding up the installation rate of the feeding trolley 1.

[0054] like Figure 1 、 7 As shown, one end of the cylinder 6 away from the inner connecting part 5 is fixedly connected to the rear end fixing part 22, and the other end of the rear end fixing part 22 is fixedly set on the machine body 2; the output shaft of the cylinder 6 is connected to the connecting earring 23, and the other end of the connecting earring 23 is fixedly connected to the inner connecting part 5.

[0055] like Figure 4 As shown, a first protrusion 24 and a second protrusion 25 are provided on the side wall surface in the length direction of the support plate 18. The first protrusion 24 is fixedly provided at one end of the support plate 18 close to the cylinder 6, and the second protrusion 25 is fixedly provided at one end of the support plate 18 away from the cylinder 6. The other side wall surfaces of the first protrusion 24 and the second protrusion 25 are both fixedly connected to the front end fixing member 4.

[0056] like Figure 1-3 As shown, a second notch 26 is provided on the outer wall surface of the guide shaft 16 close to the machine body 2, so that the side wall surface of the guide shaft 16 close to the machine body 2 is vertically arranged; there are two guide fixing plates 27 on the machine body 2, both of which are arranged in an "L" shape, and the two guide fixing plates 27 each include a first fixing section and a second fixing section. The two first fixing sections are fixedly connected to the machine body 2, and the two second fixing sections are fixedly connected to the guide shaft 16; in this specific embodiment, two guide fixing plates 27 are provided on the machine body 2 corresponding to both sides of the third notch 28.

[0057] Operation principle: When disassembling the feeding trolley 1, the power lock is in a locked state, the cylinder 6 drives the inner connecting piece 5 to move, and the inner connecting piece 5 drives the front lock 7 and the rear lock 8 to rotate, so that the front lock 7 and the rear lock 8 are respectively disengaged from the idler wheel 3, and the outer top surfaces of the front lock 7 and the rear lock 8 are lower than the bottom surface of the idler wheel 3. The operator drags the feeding trolley 1 to disengage the positioning column 10 on the feeding trolley 1 from the first notch 13, and at this time the feeding trolley 1 moves along the length direction of the guide rail 14 and the guide shaft 16. After the feeding trolley 1 is completely dragged out, it can be replaced;

[0058] When the replacement is completed and the feeding trolley 1 needs to be installed, the power lock is in the unlocked state. At this time, the outer top surfaces of the front end lock 7 and the rear end lock 8 are lower than the bottom surface of the idler wheel 3. The operator pushes the feeding trolley 1 until the positioning column 10 on the feeding trolley 1 is stuck in the first notch 13. At this time, the two idler wheels 3 on the same side of the feeding trolley 1 correspond to the front end lock 7 and the rear end lock 8 respectively, and the cylinder 6 drives the internal connecting part 5 to move in the opposite direction. The internal connecting part 5 drives the front end lock 7 and the rear end lock 8 to rotate along the hinge of the front end lock 7 and the front fixing part 4 and the hinge of the rear end lock 8 and the front fixing part 4, so that the front end lock 7 and the rear end lock 8 respectively lock the two idler wheels 3, and the installation of the feeding trolley 1 is completed.

[0059] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0060] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A quick material changing device for a feeder trolley, comprising an idler mechanism and a power lock, wherein the idler mechanism is rotatably arranged on the feed trolley, and one end of the power lock is used to be fixed to the machine body, characterized in that: The idler mechanism comprises at least two idlers arranged in sequence, and the center line connecting the two idlers is arranged in an inclined shape; The power lock includes a front-end fixing member, an inner connecting member and a cylinder. A support plate is fixedly provided on the machine body. The front-end fixing member and the support plate are fixedly connected. The cylinder is fixedly provided on the machine body. The output shaft of the cylinder is fixedly connected to the middle part of the inner connecting member. The two ends of the inner connecting member in the length direction are respectively fixedly connected with the front-end locking mouth and the rear-end locking mouth, and the front-end locking mouth and the rear-end locking mouth are both rotatably matched with the front-end fixing member. When the feeding trolley moves to one side of the machine body, the front end locking opening and the rear end locking opening correspond to the positions of the two idler wheels respectively, and the front end locking opening and the rear end locking opening are both arranged in a hook shape; The cylinder is used to drive the inner connecting part to move toward or away from the feeding trolley, so that the front end lock and the rear end lock are respectively disengaged from or locked on the two idle wheels, so that the feeding trolley is in a free state or a locked state.

2. A feeder car rapid material changing device according to claim 1, characterized in that: Also included are a positioning assembly and a positioning column; The positioning assembly includes a positioning and fixing block, a positioning pin and a positioning embedded block, one end of the positioning pin is fixedly arranged at the lower part of the positioning and fixing block, and the other end of the positioning pin is inserted into the positioning hole on the machine body, the positioning and fixing block is fixedly arranged on the machine body on one side of the power lock, a through hole is provided on the positioning and fixing block, a mounting block is provided on one side of the positioning embedded block, the mounting block is adapted to be arranged in the through hole, a first notch is provided on the mounting block, and the first notch extends to the outside of the positioning embedded block; The positioning column is fixedly arranged on the side wall surface of the feeding trolley close to the positioning component, and the diameter of the positioning column is smaller than the width value of the first notch, so that the positioning column can be inserted into the first notch.

3. A feeder car rapid material changing device according to claim 1, characterized in that: A guide rail is provided on the feeding trolley on the same side of the idler mechanism, the other end of the guide rail extends out of the feeding trolley, the guide rail is fixedly provided below the idler mechanism, the guide rail is provided along the length direction of the inner connecting member, and a groove is provided in the middle of the length direction of the guide rail; A guide shaft is fixedly arranged on the machine body, and the other end of the guide shaft extends out of the machine body. The guide shaft is arranged in the groove along the length direction of the guide rail.

4. A feeder car rapid material changing device according to claim 2, characterized in that: A column is fixedly provided on the machine body, the support plate is fixedly provided on the side wall surface of the column, a sensor is provided on the support plate, and the sensor is fixedly installed on the side wall surface of the support plate close to the positioning assembly through a sensor bracket, and a speed regulating valve is provided on the cylinder; The front-end fixing parts are arranged in parallel and parallel to each other on one side of the support plate, so that a gap is formed between the support plate and the front-end fixing parts, and the front-end fixing parts and the support plate are fixedly connected, and the inner connecting part and the front-end fixing parts are rotatably matched, and the inner connecting part, the front-end locking port and the rear-end locking port are all arranged in the gap.

5. The quick material changing device of a feeder vehicle according to claim 1, characterized in that: One end of the cylinder away from the inner connecting piece is fixedly connected to a rear end fixing piece, and the other end of the rear end fixing piece is fixedly arranged on the machine body; The output shaft of the cylinder is connected with a connecting earring, and the other end of the connecting earring is fixedly connected to the inner connecting piece.

6. A feeder car rapid material changing device according to claim 4, characterized in that: A first protrusion and a second protrusion are provided on the side wall surface in the length direction of the support plate, the first protrusion is fixedly provided at one end of the support plate close to the cylinder, and the second protrusion is fixedly provided at one end of the support plate away from the cylinder, and the other side wall surfaces of the first protrusion and the second protrusion are fixedly connected to the front end fixing piece.

7. A feeder car rapid material changing device according to claim 3, characterized in that: A second notch is provided on the outer wall surface of the guide shaft close to the machine body, so that the side wall surface of the guide shaft close to the machine body is arranged vertically; There are two guide fixing plates both arranged in an "L" shape on the machine body, and the two guide fixing plates each include a first fixing section and a second fixing section. The two first fixing sections are fixedly connected to the machine body, and the two second fixing sections are fixedly connected to the guide shaft.

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