Combined skip car suitable for bidirectional feeding and discharging
By using modular material carts in the workpiece heat treatment production line, flexible and efficient workpiece transfer and conveying are achieved, solving the problems of large equipment footprint and high operating costs, and improving the efficiency and flexibility of the production line.
Patent Information
- Application Number
- CN202511479312.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-01-23
AI Technical Summary
In existing workpiece heat treatment production lines, workpiece conveying equipment occupies a large space, has high operating costs, and low conveying efficiency, lacking effective methods to improve it.
The system employs a combined material cart suitable for bidirectional feeding and discharging, including a lateral moving mechanism and a push-pull material platform. The push-pull material platform is equipped with a pushing and pulling mechanism. The lateral moving mechanism enables the push-pull material platform to move synchronously between equipment, achieving flexible feeding and discharging of workpieces.
It improves workpiece conveying efficiency, reduces the production line footprint and equipment quantity, lowers operating costs, and ensures timely workpiece processing.
Smart Images
Figure CN121376483A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of workpiece conveying, and particularly to a combined trolley suitable for bidirectional feeding and discharging. BACKGROUND
[0002] Currently, in the workpiece heat treatment production line, the workpiece conveying between multiple process equipment usually adopts linear conveying equipment such as conveying belt and roller table, and is matched with push chain or push rod unloading device, or adopts the mode of trolley cooperating with unloading table. The former workpiece conveying mode has the problems of more conveying equipment application, larger space occupation, and high running cost. The latter workpiece conveying mode is more flexible, reduces the use of conveying equipment and the occupation of space, but the carrying capacity of the trolley is limited, and the structure of the unloading table is relatively complex, resulting in low workpiece conveying efficiency and high maintenance cost of the production line.
[0003] In recent years, in order to improve production efficiency, the mode of optimizing production line layout is usually adopted, in which optimizing workpiece conveying process and shortening workpiece conveying time have become an important efficiency improving means. However, in addition to shortening the conveying distance between process equipment and improving the conveying efficiency of the carrying tool, there is no better method to solve the above problems.
[0004] Therefore, how to improve the workpiece conveying efficiency between multiple process equipment and reduce the running cost of the production line has become one of the technical problems to be solved in the field. SUMMARY
[0005] The technical problem to be solved by the present technical scheme is how to improve the workpiece conveying efficiency between multiple process equipment and reduce the running cost of the production line.
[0006] To solve the above technical problems, the technical scheme provides a combined material car suitable for bidirectional feeding and discharging, which is applied between multiple devices with opposite material ports and comprises a transverse moving mechanism and two push-pull material tables. The multiple devices in the production line are respectively located on the two opposite sides of the transverse moving mechanism, and the two push-pull material tables are arranged on the transverse moving mechanism. The transverse moving mechanism can drive the two push-pull material tables to move along the feeding and discharging direction perpendicular to the material ports of the devices. Each push-pull material table has a pushing mechanism and a pulling mechanism. The pushing direction of the pushing mechanism and the pulling direction of the pulling mechanism on the same push-pull material table are the same and parallel to the feeding and discharging direction of the material ports of the devices. The setting positions of the pushing mechanism and the pulling mechanism of one push-pull material table and the pushing mechanism and the pulling mechanism of the other push-pull material table are opposite. The two push-pull material tables driven by the transverse moving mechanism can simultaneously or individually face the material ports of the devices and enable the pulling mechanism to pull the workpieces in the devices to the middle of the push-pull material table and enable the pushing mechanism to push the workpieces in the middle of the push-pull material table into the devices. Accordingly, the multiple devices in the production line only need to be arranged on the two sides of the moving path of the transverse moving mechanism and have their material ports arranged opposite to each other, and do not need to be one-to-one aligned with the material ports on the two sides. The combined material car can be applied between the multiple devices on the two sides to perform feeding and discharging operations of workpieces and transfer operations of workpieces between devices, thereby greatly improving the flexibility of production line arrangement and control, reducing the workpiece transfer distance between devices, and reducing the site occupation area of the production line. In addition, the combined material car can move back and forth between the multiple devices under the operation of the transverse moving mechanism, and the two push-pull material tables with opposite feeding and discharging operation directions can perform feeding and discharging operations of workpieces back and forth between the multiple devices on the two sides under the cooperation of the transverse moving mechanism. The combined material car integrates the workpiece loading and unloading function and the workpiece conveying function, which can not only reduce the number of loading and unloading devices and conveying devices in the production line, but also shorten the transfer time of workpieces between multiple devices through convenient movement and flexible feeding and discharging operation mode, ensuring the timeliness of workpiece processing. In summary, the combined material car of the technical scheme not only reduces the operation cost of the production line, but also improves the efficiency of workpiece conveying between multiple devices.
[0007] As another implementation of the technical solution, the lateral movement mechanism is composed of two guide rails, two transmission shafts, a bearing frame, four bearing guide wheels, a first motor and a first speed reducer. The two guide rails are laid on the ground between the devices in parallel and at intervals, and the extension direction of the guide rails is perpendicular to the feeding and discharging direction of the material port of the device. The two transmission shafts are spaced apart from each other and perpendicular to the guide rails, and their two ends are arranged on the bottom of the bearing frame through bearing seats. The four bearing guide wheels are respectively arranged on the two ends of the two transmission shafts and correspondingly placed on the two guide rails. The first motor and the first speed reducer are both fixedly arranged on the bearing frame, and the first motor is drivingly connected to the end of one of the transmission shafts through the first speed reducer. The two push-pull material tables are arranged on the upper part of the bearing frame in parallel and at intervals, and are driven by the first motor to move on the two guide rails with the bearing frame. Accordingly, the synchronous movement of the two push-pull material tables between the devices is realized.
[0008] As another implementation of the technical solution, the push-pull material table comprises a material table frame, a pulling mechanism and a pushing mechanism. The bottom of the material table frame is fixedly arranged on the lateral movement mechanism. The two sides of the material table frame facing the material port of the device are defined as the pulling side and the pushing side, respectively. The upper side of the material table frame is horizontally provided with pulling chain guide grooves and pushing chain guide grooves in parallel and at intervals. The setting direction of the pulling chain guide grooves and the pushing chain guide grooves is the same as the feeding and discharging direction of the material port of the device. One end of the pulling chain guide groove extends to the pulling side, and one end of the pushing chain guide groove extends to the pushing side. The movement of the lateral movement mechanism can make the pulling chain guide groove on the pulling side or the pushing chain guide groove on the pushing side align with the material port of the device on the side. The pulling mechanism and the pushing mechanism are arranged on the two sides of the inside of the material table frame, respectively. The pulling end of the pulling mechanism and the part of the chain connected thereto, and the pushing end of the pushing mechanism and the part of the chain connected thereto are respectively slidably embedded in the pulling chain guide groove and the pushing chain guide groove. Accordingly, the workpiece feeding and discharging operation is carried out by smoothly guiding the pulling end or the pushing end through the alignment of the pulling chain guide groove or the pushing chain guide groove with the material port of the device.
[0009] As another implementation of this technical solution, the material pulling mechanism includes: a first drive shaft, a first sprocket, a first J-shaped chain magazine, a first chain, a material pulling end, a second motor, and a second reducer. The material platform frame has one zipper guide groove, located in the middle of the upper side of the material platform frame. The first drive shaft is perpendicular to the zipper guide groove, and its two ends are horizontally positioned between two sides of the material platform frame adjacent to the pushing side via bearing seats. The first sprocket is fitted and fixed to the middle of the first drive shaft corresponding to the position of the zipper guide groove, and the upper chain teeth of the first sprocket are located in the extension direction of the other end of the zipper guide groove. The end of the horizontal section of the first J-shaped chain magazine faces the material pulling side, and its horizontal section is horizontally fixed below the first sprocket corresponding to the position of the zipper guide groove. A semi-circular arc segment of a J-shaped chain magazine is located between the pusher side and the first sprocket. The upper end of the semi-circular arc segment of the first J-shaped chain magazine has a first outlet. One end of the first chain is movably inserted into the first J-shaped chain magazine through the first outlet. The other end of the first chain is connected to the pull end and is slidably embedded in the zipper guide groove. The portion of the first chain between the other end of the zipper guide groove and the first outlet meshes with the upper chain teeth of the first sprocket. A second motor and a second reducer are fixedly installed on the outside of the material platform frame adjacent to the first drive shaft. The second motor is driven to the end of the first drive shaft through the second reducer. The second motor drives the first sprocket and drives the first chain and the pull end to extend horizontally from the pull side or retract into the zipper guide groove.
[0010] As another implementation of this technical solution, the pulling end includes: two first connecting plates, a first horizontal limiting plate, two connecting parts, a first pivot, and two first right-angled triangular material heads. The two first connecting plates are vertically facing each other and fixedly coupled to both sides of several links at the other end of the first chain. The first horizontal limiting plate is fixedly coupled to the ends of the two first connecting plates away from the links. The two connecting parts are fixedly disposed on both sides of the upper side of the first horizontal limiting plate. The first pivot is horizontally fixedly inserted through the two connecting parts. The two first right-angled triangular material heads are vertically facing each other and rotatably sleeved on both ends of the first pivot with their hypotenuses facing away from the links of the first chain, and located outside the two first connecting plates. A rotational gap exists between the upper side of the first horizontal limiting plate and the lower right-angled side of the first right-angled triangular material head to allow rotation of the material head towards the first right-angled triangular material head. When the links of the first chain rotate, their right-angled portions pass through. The weight of the lower acute angle of the first right-angled triangular material head is greater than the weight of its upper acute angle. Through the transmission of the first chain, the first connecting plate drives the first right-angled triangular material head to extend horizontally into the feed port of the equipment from the pulling side. Then, through the movement interference between the upper part of the hypotenuse of the first right-angled triangular material head and the bottom of the tray containing the workpiece, the first right-angled triangular material head rotates in the direction of the links of the first chain, thereby extending the first right-angled triangular material head into the bottom of the tray. Then, under the gravity of the lower acute angle of the first right-angled triangular material head and the movement limitation of the lower acute angle of the first horizontal limiting plate, the upper acute angle of the first right-angled triangular material head is lifted and stuck to the bottom edge of the tray. Then, by retracting the first chain, the tray containing the workpiece is pulled from the feed port of the equipment to the middle of the push-pull platform.
[0011] As another implementation of this technical solution, the feeding mechanism includes: a second drive shaft, two second sprockets, two second J-shaped chain magazines, two second chains, two feeding ends, a third motor, and a third reducer. The material platform frame has two chain guide grooves, located on both sides of the chain guide grooves. The second drive shaft is perpendicular to the chain guide grooves, and its two ends are horizontally positioned between the two sides of the material platform frame adjacent to the feeding side via bearing seats. The two second sprockets are fitted and fixed onto the second drive shaft corresponding to the positions of the two chain guide grooves, and the upper chain teeth of the two second sprockets are located in the extension direction of the other end of the two chain guide grooves. The horizontal ends of the two second J-shaped chain magazines face the feeding side, and their horizontal sections are horizontally fixed below the two second sprockets corresponding to the positions of the two chain guide grooves. The semicircles of the two second J-shaped chain magazines... The arc segment is located between the pulling side and the two second sprockets. The upper end of the semi-circular arc segment of each of the two second J-shaped chain magazines has a second outlet. One end of each of the two second chains is movably inserted into the two second J-shaped chain magazines through the two second outlets. The other end of each of the two second chains is connected to the two pusher ends and is slidably embedded in the two pusher guide grooves. The portion of the second chain between the other end of the two pusher guide grooves and the two second outlets meshes with the upper chain teeth of the two second sprockets. The third motor and the third reducer are fixedly installed on the outside of the material platform frame adjacent to the second drive shaft. The third motor is driven to the end of the second drive shaft through the third reducer. The third motor drives the two second sprockets and drives the two second chains and the two pusher ends to extend horizontally from the pusher side or retract into the two pusher guide grooves.
[0012] As another implementation of this technical solution, the pusher end includes: two second connecting plates, a second horizontal limiting plate, a second pivot, and a second right-angled triangular material head. The two second connecting plates are vertically facing each other and fixedly connected to both sides of several links at the other end of the second chain. The second horizontal limiting plate is fixedly connected between the ends of the two second connecting plates away from the links of the second chain. The second pivot is located above the second horizontal limiting plate and is horizontally fixedly inserted between the two second connecting plates. The second right-angled triangular material head is vertically rotatably sleeved on the second chain, with its hypotenuse facing the links of the second chain. On the second pivot between the two second connecting plates, there is a rotational gap between the upper side of the second horizontal limiting plate and the right-angled side of the lower part of the second right-angled triangular material head to allow the right-angled part to pass through when the second right-angled triangular material head rotates in the direction opposite to the chain link of the second chain. The weight of the lower acute angle part of the second right-angled triangular material head is greater than the weight of its upper acute angle part. Through the second chain drive, the second connecting plate drives the upper acute angle part of the second right-angled triangular material head to push the bottom edge of the material tray containing the workpiece located in the middle of the push-pull material table, thereby pushing the material tray into the material port of the equipment via the push side.
[0013] As another implementation of this technical solution, when the pulling mechanism pulls the tray containing the workpiece from the feed inlet of the equipment to the middle of the push-pull platform, the bottom of the tray interferes with the hypotenuse of the second right-angled triangular head of the push end returning to its original position, causing the second right-angled triangular head to rotate in the opposite direction to the second chain to allow the tray to pass through. Then, under the gravity of its lower acute angle and the limitation of the second horizontal limiting plate, the upper acute angle of the second right-angled triangular head is lifted and reset. When the pushing mechanism pushes the tray containing the workpiece from the middle of the push-pull platform into the feed inlet of the equipment, the bottom of the tray interferes with the hypotenuse of the first right-angled triangular head of the pulling end returning to its original position, causing the first right-angled triangular head to rotate in the direction of the first chain to allow the tray to pass through. Then, under the gravity of its lower acute angle and the limitation of the first horizontal limiting plate, the upper acute angle of the first right-angled triangular head is lifted and reset. Accordingly, by setting the hypotenuse of the first right-angled triangular material head and the hypotenuse of the second right-angled triangular material head in the same direction, and by limiting the movement of the lower acute angle portion of the reset first right-angled triangular material head by the first horizontal limiting plate and the movement of the lower acute angle portion of the reset second right-angled triangular material head by the second horizontal limiting plate, the material pulling end and the material pushing end can be prevented from moving and interfering with each other during the material pulling process, thereby ensuring the smooth implementation of the material pulling and pushing operation.
[0014] As another implementation of this technical solution, two horizontally mounted support rails are also provided on the upper side of the material platform frame. These two support rails are parallel to the pusher guide grooves and located outside the pusher guide grooves. The two ends of the support rails extend to the pulling side and the pushing side, respectively, and the height of the support rails is the same as the height of the guide rails inside the material inlet of the equipment. When the pusher guide groove on the pulling side or the pusher guide groove on the pushing side aligns with the material inlet of the equipment on that side, the two support rails connect with the guide rails inside the material inlet. Therefore, the connection between the support rails and the guide rails inside the material inlet ensures smooth transport of the material tray between the equipment and the push-pull material platform.
[0015] As another implementation of this technical solution, the combined material cart also includes a central control unit, which is electrically connected to the first motor of the lateral moving mechanism and the second and third motors of the push-pull material platform. The central control unit controls the operation of the first, second, and third motors through pre-set commands. This improves the level of automation of the combined material cart. Attached Figure Description
[0016] Figure 1 This is a top view schematic diagram of an embodiment of the combined material cart of the present invention, showing that the material pulling mechanism and the material pushing mechanism are both in their original positions; Figure 2This is a cross-sectional schematic diagram of the combined material cart of the present invention viewed from one side. Figure 3 This is a cross-sectional schematic diagram of the combined material cart of the present invention viewed from another side. Figure 4 This is a partial cross-sectional view of the push-pull material platform from the side angle of the area where the material pulling mechanism is located in this invention. Figure 5 This is a cross-sectional view of the push-pull material platform as seen from the pusher side angle in this invention; Figure 6 This is a partial cross-sectional view of the push-pull material platform from the side angle of the area where the push mechanism is located in this invention. Figure 7 This is a cross-sectional view of the push-pull material platform as seen from the pulling side angle in this invention; Figure 8 This is a side view of the material pulling end in this invention; Figure 9 This is a schematic diagram of the material pulling end in this invention viewed from an end angle; Figure 10 This is a side view of the pusher end in this invention; Figure 11 This is a schematic diagram of the pusher end in this invention viewed from an end angle; Explanation of symbols in the attached diagram: 1 Lateral moving mechanism; 11 Guide rail; 12 Drive shaft; 13 Support frame; 14 Support guide wheel; 15 First motor; 2 Push-pull material platform; 21 Material platform frame; 211 Pulling side; 212 Pushing side; 22 Zipper guide groove; 23 Pushing guide groove; 24 Support rail; 3 Pulling mechanism; 31 First drive shaft; 32 First sprocket; 33 First J-shaped chain magazine; 34 First chain; 35 Pulling end; 351 First connecting plate; 352 First horizontal limiting plate; 353 First pivot; 354 First right-angled triangular material head; 355 Rotation gap; 36 Second motor; 4 Pushing mechanism; 41 Second drive shaft; 42 Second sprocket; 43 Second J-shaped chain magazine; 44 Second chain; 45 Pushing end; 451 Second connecting plate; 452 Second horizontal limiting plate; 453 Second pivot; 454 Second right-angled triangle feed head; 45° rotation gap; 46° third motor; A feed tray. Detailed Implementation
[0017] The detailed description and technical content of the present invention are explained below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit the present invention.
[0018] In the context of this specification, any two or more embodiments of the present invention can be arbitrarily combined, and the resulting technical solutions are part of the original disclosure of this specification and also fall within the protection scope of the present invention.
[0019] like Figure 1 The diagram illustrates a specific embodiment of the present invention applicable to a combined material cart with bidirectional feeding and discharging. The combined material cart (hereinafter referred to as the combined material cart) of the present invention is applied between multiple devices (not shown) with their material inlets facing each other. For example, the combined material cart is positioned between an annular carburizing furnace and a quenching device, with the material inlets of the annular carburizing furnace and the quenching device facing two opposite sides of the combined material cart. Alternatively, the combined material cart is positioned between a heating furnace and a cleaning device on one side, and a quenching device on the other side, with the material inlets of the heating furnace, the cleaning device, and the quenching device facing two opposite sides of the combined material cart. Furthermore, even more devices can be installed on both sides of the combined material cart without requiring the material inlets of the devices on both sides to be aligned. In other words, the material inlets of the devices on both sides do not need to be on the same straight line, which facilitates the flexible layout of multiple devices of different sizes in the production line.
[0020] Specifically, combined Figure 1 As shown, the combined material cart of the present invention includes a lateral moving mechanism 1 and two push-pull material platforms 2. Multiple devices in the production line are respectively located on two opposite sides of the lateral moving mechanism 1. The two push-pull material platforms 2 are mounted on the lateral moving mechanism 1, and the lateral moving mechanism 1 can drive the two push-pull material platforms 2 to move along the inlet / outlet direction perpendicular to the material inlet of the device. Figure 1 The lateral moving mechanism 1 moves in the left-right direction and the material inlet and outlet direction is forward-backward. Each push-pull material platform 2 has a pulling mechanism 3 and a pushing mechanism 4. The pushing direction of the pushing mechanism 4 on the same push-pull material platform 2 is the same as the pulling direction of the pulling mechanism 3 and parallel to the material inlet and outlet direction of the equipment. The pushing mechanism 4 and pulling mechanism 3 of one push-pull material platform 2 are positioned opposite to those of the pushing mechanism 4 and pulling mechanism 3 of the other push-pull material platform 2. The two push-pull material platforms 2 are driven by the lateral moving mechanism 1 so that their respective pulling mechanism 3 and pushing mechanism 4 are simultaneously or individually facing the material inlet of the equipment. The pulling mechanism 3 can pull the workpiece in the facing equipment to the middle of its push-pull material platform 2, and the pushing mechanism 4 can push the workpiece in the middle of its push-pull material platform 2 into the facing equipment.
[0021] More specifically, combining Figure 2 and 3As shown, the lateral moving mechanism 1 consists of two guide rails 11, two drive shafts 12, a support frame 13, four support guide wheels 14, a first motor 15, and a first reducer (not shown). The two guide rails 11 are laid parallel and spaced apart on the ground between the multiple devices, with the extension direction of the guide rails 11 perpendicular to the material inlet / outlet direction of the device. The two drive shafts 12 are spaced apart from each other and perpendicular to the guide rails 11, with both ends mounted on the bottom of the support frame 13 via bearing seats (not shown). The four support guide wheels 14 are... The first motor 15 and the first reducer are fixedly mounted on the support frame 13 and are driven to the end of one of the drive shafts 12 through the first reducer. The two push-pull material platforms 2 are arranged at intervals and parallel to each other on the upper part of the support frame 13. The first motor 15 drives the support frame 13 to move the two push-pull material platforms 2 on the two guide rails 11, thereby realizing the synchronous movement of the two push-pull material platforms 2 among the multiple devices.
[0022] The two push-pull material platforms 2 in this invention have completely identical structures, only their installation directions are opposite. For ease of explanation, this invention only describes the structure of one of the push-pull material platforms 2. Figure 1 As shown, the push-pull material platform 2 includes a platform frame 21, a pulling mechanism 3, and a pushing mechanism 4. The bottom of the platform frame 21 is fixedly connected to the upper side of the support frame 13 of the transverse moving mechanism 1. The two sides of the platform frame 21 facing the material inlet of the equipment are defined as the pulling side 211 and the pushing side 212, respectively. The upper side of the platform frame 21 is horizontally provided with parallel and spaced zipper guide grooves 22 and pusher guide grooves 23. The direction of the zipper guide grooves 22 and pusher guide grooves 23 is the same as the material inlet and outlet direction of the equipment. One end extends to the pulling side 211, and the other end of the pusher guide groove 23 extends to the pushing side 212. The lateral moving mechanism 1 allows the zipper guide groove 22 on the pulling side 211 or the pusher guide groove 23 on the pushing side 212 to align with the feed inlet of the equipment on that side. The pulling mechanism 3 and the pushing mechanism 4 are respectively located on both sides inside the material platform frame 21. The pulling end 35 of the pulling mechanism 3 and its connected chain portion, and the pushing end 45 of the pushing mechanism 4 and its connected chain portion, are slidably embedded in the zipper guide groove 22 and the pusher guide groove 23, respectively. Therefore, by aligning the zipper guide groove 22 or the pusher guide groove 23 with the feed inlet of the equipment, the pulling end 35 or the pushing end 45 is smoothly guided to perform workpiece feeding and unloading operations.
[0023] Furthermore, in combination Figure 4 and 5As shown, the material pulling mechanism 3 of this invention includes a first drive shaft 31, a first sprocket 32, a first J-shaped chain magazine 33, a first chain 34, a material pulling end 35, a second motor 36, and a second reducer (not shown in the figure). Correspondingly, the material platform frame 21 has one zipper guide groove 22, which is located in the middle of the upper side of the material platform frame 21. The first drive shaft 31 is perpendicular to the zipper guide groove 22, and its two ends are horizontally arranged between the two sides of the material platform frame 21 adjacent to the pushing side 212 through bearing seats (not shown in the figure). The first sprocket 32 is sleeved and fixed in the middle of the first drive shaft 31 corresponding to the position of the zipper guide groove 22, and the upper chain teeth of the first sprocket 32 are located in the extension direction of the other end of the zipper guide groove 22. The end of the horizontal section of the first J-shaped chain magazine 33 faces the material pulling side 211, and its horizontal section is horizontally fixed in the lower part of the first sprocket 32 corresponding to the position of the zipper guide groove 22. In this configuration, the semi-circular arc segment of the first J-shaped chain magazine 33 is located between the pusher side 212 and the first sprocket 32. The upper end of the semi-circular arc segment of the first J-shaped chain magazine 33 has a first outlet (not shown in the figure). One end of the first chain 34 is movably inserted into the first J-shaped chain magazine 33 through the first outlet. The other end of the first chain 34 is connected to the pull end 35 and is slidably embedded in the zipper guide groove 22. The portion of the first chain between the other end of the zipper guide groove 22 and the first outlet meshes with the upper chain teeth of the first sprocket 32. The second motor 36 and the second reducer are fixedly installed on the outside of the material platform frame 21 adjacent to the first drive shaft 31. The second motor 36 is driven to the end of the first drive shaft 31 through the second reducer. The second motor 36 drives the first sprocket 32 and drives the first chain 34 and the pull end 35 to extend horizontally from the pull side 211 or retract into the zipper guide groove 22.
[0024] Combination Figure 6 and 7As shown, the feeding mechanism 4 of this invention includes a second drive shaft 41, two second sprockets 42, two second J-shaped chain magazines 43, two second chains 44, two feeding ends 45, a third motor 46, and a third reducer (not shown in the figure). Correspondingly, the feed platform frame 21 has two feeding guide grooves 23, which are arranged on both sides of the zipper guide groove 22. The second drive shaft 41 is perpendicular to the feeding guide groove 23, and its two ends are arranged horizontally adjacent to the feeding side 211 through bearing seats (not shown in the figure). Between the two sides of the material platform frame 21, the two second sprockets 42 are sleeved and fixed on the second drive shaft 41 corresponding to the positions of the two push chain guide grooves 23, and the upper chain teeth of the two second sprockets 42 are located in the extension direction of the other end of the two push chain guide grooves 23. The ends of the horizontal sections of the two second J-shaped chain magazines 43 are all facing the push side 212, and their horizontal sections are horizontally fixed below the two second sprockets 42 corresponding to the positions of the two push chain guide grooves 23. The semi-circular arc segment of 3 is located between the pulling side 211 and the two second sprockets 42. The upper ends of the semi-circular arc segments of the two second J-shaped chain magazines 43 each have a second outlet (not shown in the figure). One end of each of the two second chains 44 is movably inserted into the two second J-shaped chain magazines 43 through the two second outlets. The other end of each of the two second chains 44 is connected to the two pusher ends 45 and is slidably embedded in the two pusher guide grooves 23. The other end of each of the two pusher guide grooves 23 extends to the two second outlets. The second chain between the openings meshes with the upper chain teeth of the two second sprockets 42. The third motor 46 and the third reducer are fixedly installed on the outside of the material platform frame 21 adjacent to the second drive shaft 41. The third motor 46 is driven to the end of the second drive shaft 41 through the third reducer. The third motor 46 drives the two second sprockets 42 and drives the two second chains 44 and the two pusher ends 45 to extend horizontally from the pusher side 212 or retract into the two pusher guide grooves 23.
[0025] In addition, two horizontally oriented support rails 24 are provided on the upper side of the material platform frame 21. These two support rails 24 are parallel to and located outside the push chain guide grooves 23. The two ends of the support rails 24 extend to the pulling side 211 and the pushing side 212, respectively. The height of the support rails 24 is the same as the height of the guide rails inside the material inlet of the equipment. When the zipper guide groove 22 of the pulling side 211 or the push chain guide groove 23 of the pushing side 212 is aligned with the material inlet of the equipment on the same side, the two support rails 24 engage with the guide rails inside the material inlet to ensure smooth transport of the workpiece between the equipment and the push-pull material platform 2. Since these two support rails 24 are the main components for contacting and supporting the workpiece on the upper side of the push-pull material platform 2, they can be made of wear-resistant steel.
[0026] Furthermore, combining Figure 8 and9 As shown, the material pulling end 35 of this invention includes two first connecting plates 351, a first horizontal limiting plate 352, two connecting parts (not shown due to obstruction), a first pivot 353, and two first right-angled triangular material heads 354. The two first connecting plates 351 are vertically facing each other and fixedly coupled to both sides of several links at the other end of the first chain 34. The first horizontal limiting plate 352 is fixedly coupled to the ends of the two first connecting plates 351 away from the chain links. The two connecting parts are fixedly disposed on the first... On both sides of the upper side of the horizontal limiting plate 352, the first pivot 353 is horizontally fixedly inserted into the two connecting parts. The two first right-angled triangular material heads 354 are vertically facing each other and rotatably sleeved on both ends of the first pivot 353 with their hypotenuses facing away from the links of the first chain 34, and are located outside the two first connecting plates 351. There is a rotation gap 355 between the upper side of the first horizontal limiting plate 352 and the lower right-angled side of the first right-angled triangular material head 354 to allow rotation between the two right-angled triangular material heads 354. When the triangular head 354 rotates in the direction of the chain link of the first chain 34, its right-angled portion passes through. The weight of the lower acute angle portion of the first right-angled triangular head 354 is greater than the weight of its upper acute angle portion. Through the transmission of the first chain 34, the first connecting plate 351 drives the first right-angled triangular head 354 to extend horizontally into the feed inlet of the equipment from the feeding side 211. Then, the upper part of the hypotenuse of the first right-angled triangular head 354 moves and interferes with the bottom of the workpiece-loaded tray A, causing the first right-angled triangular head 354 to... The triangular feed head 354 rotates towards the link of the first chain 34, allowing it to extend below the tray A. Then, under the weight of the lower acute angle of the first triangular feed head 354 and the movement limitation of the lower acute angle by the first horizontal limiting plate 352, the upper acute angle is raised and latches onto the bottom edge of the tray A. The tray A containing the workpiece is then pulled from the feed inlet of the equipment to the center of the push-pull platform 2 by retracting the first chain 34. It should be noted that, in order for the pulling end 35 and the pushing end 45 to perform the workpiece feeding and unloading operations, the workpieces in this invention are all loaded into the tray A, which has a lower edge at the bottom.
[0027] Combination Figure 10 and 11As shown, the pusher end 45 of the present invention includes two second connecting plates 451, a second horizontal limiting plate 452, a second pivot 453, and a second right-angled triangular feed head 454. The two second connecting plates 451 are vertically facing each other and fixedly connected to both sides of several links at the other end of the second chain 44. The second horizontal limiting plate 452 is fixedly connected between the ends of the two second connecting plates 451 away from the links of the second chain 44. The second pivot 453 is located above the second horizontal limiting plate 452 and is horizontally fixedly inserted between the two second connecting plates 451. The second right-angled triangular feed head 454 is vertically rotatably sleeved on the two connecting plates 451 with its hypotenuse facing the link direction of the second chain 44. On the second pivot 453 between the second connecting plates 451, there is a rotation gap 455 between the upper side of the second horizontal limiting plate 452 and the right-angled side of the lower part of the second right-angled triangular material head 454 so that the right-angled part can pass through when the second right-angled triangular material head 454 rotates in the direction opposite to the chain link of the second chain 44. The weight of the lower acute angle part of the second right-angled triangular material head 454 is greater than the weight of the upper acute angle part. Through the transmission of the second chain 44, the second connecting plate 451 drives the upper acute angle part of the second right-angled triangular material head 454 to push the bottom edge of the material tray A containing the workpiece located in the middle of the push-pull material table 2, and then pushes the material tray A into the material port of the equipment through the push side 212.
[0028] In addition, the combined material cart may also include a central control unit (not shown in the figure). This central control unit can be mounted on the support frame of the lateral moving mechanism, on the platform frame of the push-pull material platform, or on an external device of the combined material cart. The central control unit is electrically connected to the aforementioned first motor, second motor, third motor, and various sensors (such as position sensors corresponding to each device, not shown in the figure). Alternatively, the combined material cart may not include these sensors. The central control unit can control the operation of the first motor, second motor, and third motor through pre-set commands. To improve operational accuracy, the first motor, second motor, and third motor can be servo motors, and the output of the reducer can be connected to the drive shaft via gear meshing or direct connection. The central control unit can be composed of a programmable logic controller (PLC), a centralized control circuit, a central control host computer, or a server, or it can be a centralized control unit for the entire production system (i.e., the centralized control unit of the production system uniformly controls the operation of each device and the combined material cart). Given that the current application of programmable logic control circuits, centralized control circuits, central control host computers, servers, and production system centralized control units to control the operating status of various components based on set instructions and sensor detection data (which may or may not be available) is already a widely used and common control mode in the field of automation control, and is the existing control technology, the process of using a central control unit to control the operation of the combined material cart in this invention will not be described in detail. Through the control of the central control unit, the automated operation of the combined material cart can be achieved, thereby not only improving the processing efficiency of workpieces but also saving labor costs. Combined with... Figure 1As shown, in operation, when the pulling mechanism 3 pulls the tray A containing the workpiece from the feed port of the equipment to the middle of the push-pull platform 2, the bottom of the tray A will move and interfere with the hypotenuse of the second right-angled triangular feed head 454 of the push end 45 returning to its original position, causing the second right-angled triangular feed head 454 to rotate in the opposite direction to the second chain 44 so that the tray A can pass through. Then, under the gravity of its lower acute angle and the limitation of the second horizontal limiting plate 452, the upper acute angle of the second right-angled triangular feed head 454 is lifted and reset. At this time, the tray A pulled to the middle of the push-pull platform 2 is in the pushing direction of the second right-angled triangular feed head 454, while the first right-angled triangular feed head 354 is located at the bottom of the tray A. When the pushing mechanism 4 pushes the tray A containing the workpiece from the middle of the push-pull platform 2 into the feed port of the equipment, the bottom of the tray A, more precisely the lower edge of the bottom, moves and interferes with the hypotenuse of the first right-angled triangular feed head 354 of the pull end 35 that returns to its original position. This causes the first right-angled triangular feed head 354 to rotate in the direction of the first chain 34 so that the tray A can pass through. Afterwards, under the gravity of its lower acute angle and the limitation of the first horizontal limiting plate 352, the upper acute angle of the first right-angled triangular feed head 354 is lifted and reset. Accordingly, the pulling end 35 and the pushing end 45 located on the same push-pull material platform 2 are arranged in the same direction by setting the hypotenuse of the first right-angled triangular material head 354 and the hypotenuse of the second right-angled triangular material head 454, and by limiting the movement of the lower acute angle of the reset first right-angled triangular material head 354 by the first horizontal limiting plate 352 and the lower acute angle of the reset second right-angled triangular material head 454 by the second horizontal limiting plate 452. This can prevent movement interference between them during the pulling end 35 pulling material or the pushing end 45 pushing material. The upper side of each push-pull material platform 2 is provided with a zipper guide groove 22 and two pusher guide grooves 23 located on both sides of the zipper guide groove, which is also to avoid movement interference between them during the pulling or pushing material process, thereby ensuring the smooth implementation of the pulling and pushing operations.
[0029] The support frame 13 and the material platform frame 21 in this invention can be made of structural steel components such as steel columns, angle steel, channel steel, I-beams, etc., by welding or assembly to reduce the overall weight of the modular material cart. However, this invention does not limit the specific structure of the support frame and the material platform frame.
[0030] In summary, the combined material cart of this invention allows multiple devices in a production line to be arranged only on both sides of the moving path of the lateral moving mechanism, with their respective material inlets facing each other. It eliminates the need for one-to-one alignment of the material inlets on both sides, enabling the combined material cart to perform workpiece loading and unloading operations and workpiece transfer operations between multiple devices on both sides. This significantly improves the flexibility of production line layout and control, reduces the workpiece transfer distance between devices, and thus reduces the floor space occupied by the production line. Furthermore, the combined material cart, under the operation of the lateral moving mechanism, can move flexibly and repeatedly between multiple devices. The movable push-pull material platform, with two opposite feeding and discharging operation directions, can reciprocate between multiple devices on both sides to perform workpiece feeding and discharging operations under the cooperation of the lateral moving mechanism. This makes the combined material cart integrate workpiece loading and unloading functions and workpiece conveying functions. It can not only reduce the number of loading and unloading devices and conveying devices in the production line, but also shorten the transfer time of workpieces between multiple devices through convenient movement and flexible feeding and discharging operation modes, ensuring the timeliness of workpiece processing. Therefore, the combined material cart of the present invention not only reduces the operating cost of the production line, but also improves the efficiency of workpiece conveying between multiple devices.
[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Other equivalent variations made using the patent concept of the present invention should all fall within the patent protection scope of the present invention.
Claims
1. A combined material cart suitable for bidirectional feeding and discharging, applied between multiple devices with their material inlets facing each other, characterized in that, The combined material cart includes a lateral moving mechanism and two push-pull material platforms. The plurality of devices are respectively located on two opposite sides of the lateral moving mechanism. The two push-pull material platforms are mounted on the lateral moving mechanism, and the lateral moving mechanism can drive the two push-pull material platforms to move along the inlet / outlet direction perpendicular to the material inlet of the device. Each push-pull material platform has a pushing mechanism and a pulling mechanism. The pushing direction of the pushing mechanism and the pulling direction of the pulling mechanism on the same push-pull material platform are the same as each other and parallel to the inlet / outlet direction of the material inlet of the device. The pushing and pulling mechanisms of one push-pull material platform are positioned opposite to those of the other push-pull material platform. The two push-pull material platforms are driven by the lateral moving mechanism to enable their respective pulling and pushing mechanisms to be simultaneously or individually positioned opposite the material inlet of the device. The pulling mechanism can pull the workpiece in the opposite device to the middle of its push-pull material platform, and the pushing mechanism can push the workpiece in the middle of its push-pull material platform into the opposite device.
2. The combined material cart according to claim 1, characterized in that, The lateral movement mechanism consists of two guide rails, two drive shafts, a support frame, four support guide wheels, a first motor, and a first reducer. The two guide rails are laid parallel and spaced apart on the ground between the multiple devices, with the extension direction of the guide rails perpendicular to the material inlet and outlet direction of the device. The two drive shafts are spaced apart from each other and perpendicular to the guide rails, with both ends mounted on the bottom of the support frame via bearing seats. The four support guide wheels are respectively mounted on both ends of the two drive shafts and placed on the two guide rails. The first motor and the first reducer are both fixedly mounted on the support frame, and the first motor is driven to the end of one of the drive shafts through the first reducer. The two push-pull material platforms are arranged parallel and spaced apart on the upper part of the support frame. Driven by the first motor, the support frame moves the two push-pull material platforms on the two guide rails.
3. The combined material cart according to claim 1, characterized in that, The push-pull material platform includes: a material platform frame, a material pulling mechanism, and a material pushing mechanism. The bottom of the material platform frame is fixedly mounted on the lateral moving mechanism. The two sides of the material platform frame facing the material inlet of the equipment are defined as the material pulling side and the material pushing side, respectively. The upper side of the material platform frame is horizontally provided with parallel and spaced zipper guide grooves and pusher guide grooves. The direction of the zipper guide grooves and pusher guide grooves is the same as the material inlet and outlet direction of the equipment. One end of the zipper guide groove extends to the material pulling side, and one end of the pusher guide groove extends to the material pushing side. The lateral moving mechanism can drive the zipper guide groove on the material pulling side or the pusher guide groove on the material pushing side to align with the material inlet of the equipment on the corresponding side. The material pulling mechanism and the pusher mechanism are respectively located on both sides inside the material platform frame. The material pulling end of the material pulling mechanism and its connected chain portion, and the material pushing end of the material pushing mechanism and its connected chain portion, are slidably embedded in the zipper guide groove and the pusher guide groove, respectively.
4. The combined material cart according to claim 3, characterized in that, The material pulling mechanism includes: a first drive shaft, a first sprocket, a first J-shaped chain magazine, a first chain, the material pulling end, a second motor, and a second reducer. The material platform frame has one zipper guide groove, located in the middle of the upper side of the frame. The first drive shaft is perpendicular to the zipper guide groove, and its two ends are horizontally positioned between two sides of the material platform frame adjacent to the pushing side via bearing seats. The first sprocket is fitted and fixed to the middle of the first drive shaft corresponding to the position of the zipper guide groove, and the upper chain teeth of the first sprocket are located in the extension direction of the other end of the zipper guide groove. The horizontal end of the first J-shaped chain magazine faces the material pulling side, and its horizontal section is horizontally fixed below the first sprocket corresponding to the position of the zipper guide groove. The semicircle of the first J-shaped chain magazine... The arc segment is located between the pushing side and the first sprocket. The upper end of the semi-circular arc segment of the first J-shaped chain magazine has a first outlet. One end of the first chain is movably inserted into the first J-shaped chain magazine through the first outlet. The other end of the first chain is connected to the pulling end and is slidably embedded in the zipper guide groove. The portion of the first chain between the other end of the zipper guide groove and the first outlet meshes with the upper chain teeth of the first sprocket. The second motor and the second reducer are fixedly installed on the outside of the material platform frame adjacent to the first drive shaft. The second motor is driven to the end of the first drive shaft through the second reducer. The second motor drives the first sprocket and drives the first chain and the pulling end to extend horizontally from the pulling side or retract into the zipper guide groove.
5. The combined material cart according to claim 4, characterized in that, The pulling end includes: two first connecting plates, a first horizontal limiting plate, two connecting parts, a first pivot, and two first right-angled triangular material heads. The two first connecting plates are vertically facing each other and fixedly connected to both sides of several links at the other end of the first chain. The first horizontal limiting plate is fixedly connected to the ends of the two first connecting plates away from the links. The two connecting parts are fixedly disposed on both sides of the upper side of the first horizontal limiting plate. The first pivot is horizontally fixedly inserted through the two connecting parts. The two first right-angled triangular material heads are vertically facing each other and rotatably sleeved on both ends of the first pivot with their hypotenuses facing away from the links, and located outside the two first connecting plates. There is a rotation gap between the upper side of the first horizontal limiting plate and the lower right-angled side of the first right-angled triangular material head to allow the material head to rotate straight when it rotates towards the link. The corner passes through, and the weight of the lower acute angle of the first right-angled triangular material head is greater than the weight of its upper acute angle. Through the first chain drive, the first connecting plate drives the first right-angled triangular material head to extend horizontally into the material inlet of the equipment from the pulling side. Then, through the movement interference between the upper part of the hypotenuse of the first right-angled triangular material head and the bottom of the tray containing the workpiece, the first right-angled triangular material head rotates in the direction of the chain link, thereby extending the first right-angled triangular material head into the bottom of the tray. Then, under the gravity of the lower acute angle of the first right-angled triangular material head and the movement limitation of the lower acute angle of the first horizontal limiting plate, the upper acute angle of the first right-angled triangular material head is lifted and stuck to the bottom edge of the tray. Then, by retracting the first chain, the tray containing the workpiece is pulled from the material inlet of the equipment to the middle of the push-pull material platform.
6. The combined material cart according to claim 5, characterized in that, The feeding mechanism includes: a second drive shaft, two second sprockets, two second J-shaped chain magazines, two second chains, two feeding ends, a third motor, and a third reducer. The material platform frame has two feeding guide grooves, located on both sides of the zipper guide groove. The second drive shaft is perpendicular to the feeding guide groove, and its two ends are horizontally positioned between two sides of the material platform frame adjacent to the feeding side via bearing seats. The two second sprockets are fitted and fixed onto the second drive shaft corresponding to the positions of the two feeding guide grooves, and the upper chain teeth of the two second sprockets are located in the extension direction of the other end of the two feeding guide grooves. The horizontal ends of the two second J-shaped chain magazines face the feeding side, and their horizontal sections are horizontally fixed below the two second sprockets corresponding to the positions of the two feeding guide grooves. The semi-circular arc sections of the two second J-shaped chain magazines are located below the feeding end of the feeding end. Between the material side and the two second sprockets, the upper ends of the semi-circular arc segments of the two second J-shaped chain magazines each have a second outlet. One end of each of the two second chains is movably inserted into the two second J-shaped chain magazines through the two second outlets. The other end of each of the two second chains is connected to the two pusher ends and is slidably embedded in the two pusher guide grooves. The portion of the second chain between the other end of the two pusher guide grooves and the two second outlets meshes with the upper chain teeth of the two second sprockets. The third motor and the third reducer are fixedly installed on the outside of the material platform frame adjacent to the second drive shaft, and the third motor is driven to the end of the second drive shaft through the third reducer. The third motor drives the two second sprockets and drives the two second chains and the two pusher ends to extend horizontally from the pusher side or retract into the two pusher guide grooves.
7. The combined material cart according to claim 6, characterized in that, The pushing end includes: two second connecting plates, a second horizontal limiting plate, a second pivot, and a second right-angled triangular material head. The two second connecting plates are vertically facing each other and fixedly connected to both sides of several links at the other end of the second chain. The second horizontal limiting plate is fixedly connected between the ends of the two second connecting plates away from the links. The second pivot is located above the second horizontal limiting plate and is horizontally fixedly inserted between the two second connecting plates. The second right-angled triangular material head is vertically rotatably sleeved between the two second connecting plates with its hypotenuse facing the link direction. On the second pivot, there is a rotational gap between the upper side of the second horizontal limiting plate and the right-angled side of the lower part of the second right-angled triangular material head to allow the right-angled part to pass through when the second right-angled triangular material head rotates in the opposite direction to the chain link. The weight of the lower acute angle part of the second right-angled triangular material head is greater than the weight of its upper acute angle part. Through the second chain drive, the second connecting plate drives the upper acute angle part of the second right-angled triangular material head to push the bottom edge of the workpiece-loaded tray located in the middle of the push-pull material table, thereby pushing the tray into the material port of the equipment via the push side.
8. The combined material cart according to claim 7, characterized in that, When the pulling mechanism pulls the tray containing the workpiece from the feed inlet of the equipment to the middle of the push-pull platform, the bottom of the tray interferes with the hypotenuse of the second right-angled triangular head of the push end returning to its original position, causing the second right-angled triangular head to rotate in the opposite direction to the second chain to allow the tray to pass through. Then, under the weight of its lower acute angle and the limitation of the second horizontal limiting plate, the upper acute angle of the second right-angled triangular head is lifted and reset. When the pushing mechanism pushes the tray containing the workpiece from the middle of the push-pull platform into the feed inlet of the equipment, the bottom of the tray interferes with the hypotenuse of the first right-angled triangular head of the pulling end returning to its original position, causing the first right-angled triangular head to rotate in the direction of the first chain to allow the tray to pass through. Then, under the weight of its lower acute angle and the limitation of the first horizontal limiting plate, the upper acute angle of the first right-angled triangular head is lifted and reset.
9. The combined material cart according to claim 6, characterized in that, The upper side of the material platform frame is also provided with two horizontally oriented support rails. The two support rails are parallel to the pusher guide groove and located outside the two pusher guide grooves. The two ends of the support rails extend to the pulling side and the pushing side, respectively. The height of the support rails is the same as the height of the guide rail in the material inlet of the equipment. When the zipper guide groove on the pulling side or the pusher guide groove on the pushing side is aligned with the material inlet of the equipment on the same side, the two support rails are connected to the guide rail in the material inlet.
10. The combined material cart according to claim 1, characterized in that, Also includes: The central control unit is electrically connected to the first motor of the transverse moving mechanism and the second and third motors of the push-pull material table. The central control unit controls the operation of the first motor, the second motor and the third motor through set instructions.