A multi-head bending machine for forming a shopping cart frame

Abstract

The application discloses a multi-head bending machine for shopping cart frame forming, and belongs to the technical field of bending. The multi-head bending machine comprises a base frame, linear guide rails and supporting frames. A plurality of bending units are arranged on the linear guide rails along the length direction of the linear guide rails. The bending unit comprises a supporting table, a bending mechanism and a synchronous limiting and positioning mechanism. The synchronous limiting and positioning mechanism comprises a supporting plate, a supporting flat clamping fixing assembly and a linkage and downward pulling positioning assembly. A power mechanism is further arranged on the base frame. Through the above mode, the position of the bending unit is adjusted, different bending parameters are pre-input to the bending mechanism of each bending unit, the bending processing requirement of different types of shopping cart frames is met, the taking and placing operation of the shopping cart frame is convenient and fast, the labor intensity is effectively reduced, and the bending processing efficiency and processing precision of the shopping cart frame are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of bending technology, and more specifically to a multi-head bending machine for forming a shopping cart frame. Background Technology

[0002] The manufacturing of the shopping cart frame requires multiple bending and welding processes on the metal wire.

[0003] The shopping cart frame is made up of multiple horizontal and vertically arranged wires. Since the spacing of the wires is not uniform and the bending parameters of the wires on the edge and the inside are different, the traditional manufacturing of shopping cart frames relies on manual handling of the wires and bending them one by one. This not only involves high labor intensity, but also makes it difficult to ensure the accuracy of the shopping cart frame forming.

[0004] Based on this, the present invention designs a multi-head bending machine for forming shopping cart frames to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a multi-head bending machine for forming a shopping cart frame.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A multi-head bending machine for forming a shopping cart frame, including a base frame; Linear guide rails and support frames are fixedly installed at the left and right ends of the base frame, respectively. A linear guide rail is fixedly installed at the left end of the base frame, and multiple sets of bending units are installed on the linear guide rail along its length. The bending unit includes a support platform, a bending mechanism, and a synchronous limiting and positioning mechanism. The support platform is slidably connected to the linear guide rail via a linear slider. The bending mechanism and the synchronous limiting and positioning mechanism are installed on the support platform, and the synchronous limiting and positioning mechanism is located between the bending mechanism and the support frame. The synchronous limiting positioning mechanism includes a support plate, a support flat clamp fixing component, and a linkage pull-down positioning component. The support plate is fixedly installed on the right end of the support platform. The support flat clamp fixing component and the linkage pull-down positioning component are both installed on the support plate. The linkage pull-down positioning component is located below the support flat clamp fixing component and is connected to the support flat clamp fixing component. The base frame is also equipped with a power mechanism, the output end of which is driven and connected to the support flat clamp fixing components of all bending units.

[0007] Furthermore, the bending mechanism includes a bending motor, a fixed bending die, and a moving bending die. The fixed bending die is fixedly installed on the upper end of the support platform, and the moving bending die is rotatably installed on the upper end of the support platform. The fixed bending die and the moving bending die are concentrically distributed. The bending motor is fixedly installed on the lower end of the support platform, and the output end of the bending motor is fixedly connected to the moving bending die.

[0008] Furthermore, the supporting flat clamp fixing assembly includes a transverse sliding block, a lateral clamping block, a bottom stop bar, a limiting sleeve, and a driving assembly. Two transverse sliding blocks are provided, and the transverse sliding blocks are horizontally slidably mounted on the support plate through the limiting assembly. Each transverse sliding block is movably connected to a lateral clamping block, and the two lateral clamping blocks have anti-slip textures at their adjacent ends. The bottom stop bar is fixedly mounted on one of the lateral clamping blocks, and the limiting sleeve is fixedly mounted on the other lateral clamping block. The bottom stop bar and the limiting sleeve are slidably connected. The driving assembly is mounted on the support plate and located below the transverse sliding blocks, and the output end of the driving assembly is connected to the two transverse sliding blocks.

[0009] Furthermore, the driving assembly includes a connecting plate, a driving groove, a driving rod, and a vertical slider. The lower end of each transverse block is fixedly mounted with a connecting plate, and the connecting plate has a driving groove. The vertical slider is vertically slidably mounted on the support plate through a limiting assembly. Each end of the vertical slider is fixedly mounted with a driving rod, and the ends of the two driving rods are respectively limited and slidably connected to the driving grooves of the two connecting plates.

[0010] Furthermore, the drive groove is composed of an upper inclined groove and a lower vertical groove connected together.

[0011] Furthermore, the linkage pull-down positioning assembly includes an elastic element, a hook, and a pull rod. The lateral clamping block is vertically slidable and connected to the transverse block through a limiting component. An elastic element is fixedly installed between the lateral clamping block and the transverse block. The pull rod is fixedly installed at the lower end of any lateral clamping block, and the hook is fixedly installed at the upper end of the vertical slider, and the hook is hooked to the pull rod.

[0012] Furthermore, when the drive rod is located in the inclined groove of the drive slot, the hook's hooking structure is located on the upper side of the pull rod, and the two do not contact each other; when the drive rod is located in the vertical groove of the drive slot, the hook and the pull rod are hooked together, and the two can move downwards synchronously.

[0013] Furthermore, the power mechanism includes a synchronous drive rail and a lifting linear module. The lifting linear module is fixedly installed on the base frame, and the output end of the lifting linear module is fixedly connected to the synchronous drive rail. The synchronous drive rail and the linear rail are arranged parallel to each other. The vertical sliders of all bending units are limited and slidably connected to the synchronous drive rail through the sliders, so that adjusting the position of the bending unit does not affect the driving effect of the power mechanism.

[0014] Compared with the prior art, the present invention has the following advantages: by adjusting the position of the bending unit and pre-inputting different bending parameters into the bending mechanism of each bending unit, the bending processing requirements of different types of shopping cart frames can be met. Furthermore, the picking and placing of shopping cart frames is convenient and fast, effectively reducing the intensity of manual labor and significantly improving the bending processing efficiency and accuracy of shopping cart frames. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a perspective view of a multi-head bending machine for forming a shopping cart frame according to the present invention; Figure 2 This is a top view of a multi-head bending machine for forming a shopping cart frame according to the present invention; Figure 3 This is a partial perspective view of a multi-head bending machine for forming a shopping cart frame according to the present invention; Figure 4 This is a perspective view of the bending unit of the present invention; Figure 5 This is a schematic diagram of the synchronous limiting and positioning mechanism of the present invention; Figure 6 The three-dimensional synchronous positioning mechanism of the present invention Figure 1 ; Figure 7 The three-dimensional synchronous positioning mechanism of the present invention Figure 2 .

[0017] The labels in the diagram represent: 1. Base frame; 2. Support frame; 3. Linear guide rail; 4. Support platform; 5. Linear slider; 6. Bending mechanism; 61. Bending motor; 62. Bending fixed mold; 63. Bending moving mold; 7. Synchronous limiting and positioning mechanism; 71. Support plate; 72. Support flat clamp fixing assembly; 721. Horizontal moving block; 722. Side clamping block; 723. Bottom stop bar; 724. Limiting sliding sleeve; 725. Connecting plate; 726. Drive groove; 727. Drive rod; 728. Vertical slider; 73. Linkage pull-down positioning assembly; 731. Elastic element; 732. Hook; 733. Pull rod; 8. Power mechanism; 81. Synchronous drive guide rail; 82. Lifting linear module; 9. Shopping cart frame. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In some embodiments, please refer to the accompanying drawings. Figures 1-7 A multi-head bending machine for forming a shopping cart frame, comprising a base frame 1; The left and right ends of the base frame 1 are respectively fixedly installed with linear guide rail 3 and support frame 2. The left end of the base frame 1 is fixedly installed with linear guide rail 3, and multiple sets of bending units are installed on the linear guide rail 3 along its length. The bending unit includes a support platform 4, a bending mechanism 6, and a synchronous limiting and positioning mechanism 7. The support platform 4 is connected to the linear guide rail 3 by a linear slider 5. The bending mechanism 6 and the synchronous limiting and positioning mechanism 7 are installed on the support platform 4, and the synchronous limiting and positioning mechanism 7 is located between the bending mechanism 6 and the support frame 2. The synchronous limiting positioning mechanism 7 includes a support plate 71, a support flat clamp fixing component 72, and a linkage pull-down positioning component 73. The support plate 71 is fixedly installed on the right end of the support platform 4. The support flat clamp fixing component 72 and the linkage pull-down positioning component 73 are both installed on the support plate 71. The linkage pull-down positioning component 73 is located below the support flat clamp fixing component 72 and is connected to the support flat clamp fixing component 72. The base frame 1 is also equipped with a power mechanism 8, the output end of which is drivenly connected to the support flat clamp fixing assembly 72 of all bending units.

[0020] In this embodiment, the linear slider 5 is a locking type slider, which allows the operator to adjust the position of the bending unit so that the bending mechanism 6 of the bending unit can adapt to the bending requirements of different types of shopping cart frames 9.

[0021] When using a conventional multi-head bending machine, the operator needs to place the different parts of the shopping cart frame 9 to be processed into each bending mechanism 6. Since there are a large number of parts to be processed in the shopping cart frame 9, generally around eight to fifteen, it takes a long time to place the shopping cart frame 9 each time. Furthermore, the deformation of the shopping cart frame 9 can increase the difficulty of positioning the parts to be processed, further increasing the intensity of manual labor. In this invention, the welded shopping cart frame 9 is placed on the support frame 2. The parts of the shopping cart frame 9 to be processed can be directly mounted on the support flat clamp fixing component 72. Then, the power mechanism 8 drives all the support flat clamp fixing components 72 and the linkage pull-down positioning component 73 to operate synchronously. The support flat clamp fixing component 72 first clamps and limits the parts of the shopping cart frame 9 to be processed, and then drives it to move vertically downward until the parts of the shopping cart frame 9 to be processed are sent to the working end of the bending mechanism 6 in the standard position. Then, the bending mechanism 6 bends all the parts of the shopping cart frame 9 to be processed, so as to realize the one-time forming of the shopping cart frame 9. After forming, the power mechanism 8 drives the support flat clamp fixing component 72 and the linkage pull-down positioning component 73 to reset, so as to realize the release of the shopping cart frame 9. Therefore, the multi-head bending machine of this application can meet the bending processing needs of different types of shopping cart frames 9 by adjusting the position of the bending unit and pre-inputting different bending parameters into the bending mechanism 6 of each bending unit. Furthermore, the picking and placing of the shopping cart frame 9 is convenient and fast, effectively reducing the intensity of manual labor and significantly improving the bending processing efficiency and processing accuracy of the shopping cart frame 9.

[0022] The bending mechanism 6 includes a bending motor 61, a fixed bending die 62, and a moving bending die 63. The fixed bending die 62 is fixedly installed on the upper end of the support platform 4, and the moving bending die 63 is rotatably installed on the upper end of the support platform 4. The fixed bending die 62 and the moving bending die 63 are concentrically distributed. The bending motor 61 is fixedly installed on the lower end of the support platform 4, and the output end of the bending motor 61 is fixedly connected to the moving bending die 63. The supporting flat clamp fixing assembly 72 includes a transverse sliding block 721, a lateral clamping block 722, a bottom stop 723, a limiting sleeve 724, and a drive assembly. Two transverse sliding blocks 721 are provided, and each transverse sliding block 721 is horizontally slidably mounted on the support plate 71 via the limiting assembly. Each transverse sliding block 721 is movably connected to a lateral clamping block 722, and the ends of the two lateral clamping blocks 722 that are close to each other are provided with anti-slip textures. The bottom stop 723 is fixedly mounted on one of the lateral clamping blocks 722, and the limiting sleeve 724 is fixedly mounted on the other lateral clamping block 722. The bottom stop 723 and the limiting sleeve 724 are slidably connected. The drive assembly is mounted on the support plate 71 and located below the transverse sliding blocks 721, and the output end of the drive assembly is connected to both transverse sliding blocks 721. The driving assembly includes a connecting plate 725, a driving groove 726, a driving rod 727, and a vertical slider 728. The lower end of each horizontal block 721 is fixedly mounted with a connecting plate 725. The connecting plate 725 has a driving groove 726. The vertical slider 728 is vertically slidably mounted on the support plate 71 through a limiting assembly. Each end of the vertical slider 728 is fixedly mounted with a driving rod 727, and the ends of the two driving rods 727 are respectively limited and slidably connected to the driving grooves 726 of the two connecting plates 725. In this embodiment, the drive groove 726 is formed by connecting an upper inclined groove and a lower vertical groove. When the vertical slider 728 moves vertically downward, the drive rod 727 first slides in the inclined groove of the drive groove 726, causing the two transverse blocks 721 to move synchronously towards each other, so as to achieve the clamping effect on the shopping cart frame 9. Then, the vertical slider 728 drives the drive rod 727 to continue to move vertically downward, and the drive rod 727 slides in the vertical groove of the drive groove 726, while the positions of the two transverse blocks 721 remain unchanged.

[0023] In some embodiments, a deep groove ball bearing is installed at one end of the drive rod 727 located in the drive groove 726, making the movement of the drive rod 727 smoother.

[0024] The linkage pull-down positioning assembly 73 includes an elastic element 731, a hook 732, and a pull rod 733. The lateral clamping block 722 is vertically slidable and connected to the transverse block 721 through a limiting assembly. The elastic element 731 is fixedly installed between the lateral clamping block 722 and the transverse block 721. The pull rod 733 is fixedly installed at the lower end of any lateral clamping block 722, and the hook 732 is fixedly installed at the upper end of the vertical slider 728, and the hook 732 is hooked to the pull rod 733. In this embodiment, when the drive rod 727 is located in the inclined groove of the drive slot 726, the hook 732 is located on the upper side of the pull rod 733 and the two do not contact each other; when the drive rod 727 is located in the vertical groove of the drive slot 726, the hook 732 and the pull rod 733 are hooked together and can move downward synchronously.

[0025] In this embodiment, the elastic element 731 is a tension spring; The power mechanism 8 includes a synchronous drive rail 81 and a lifting linear module 82. The lifting linear module 82 is fixedly installed on the base frame 1. The output end of the lifting linear module 82 is fixedly connected to the synchronous drive rail 81. The synchronous drive rail 81 is arranged parallel to the linear guide rail 3. The vertical sliders 728 of all bending units are limited and slidably connected to the synchronous drive rail 81 through the slider, so that adjusting the position of the bending unit does not affect the driving effect of the power mechanism 8.

[0026] In this invention, the part of the shopping cart frame 9 to be processed is placed between the lateral clamping blocks 722 and supported by the bottom stop bar 723. The lifting linear module 82 then drives the synchronous drive guide rail 81 to move vertically downward, thereby causing the vertical sliders 728 of all bending units to move downward synchronously. The vertical sliders 728 drive the drive rod 727 to slide in the drive groove 726, causing the two transverse blocks 721 to move towards each other first, and then clamp the part of the shopping cart frame 9 to be processed by the lateral clamping blocks 722, followed by vertical... The slider 728 continues to move downwards, and the pull hook 732 and pull rod 733 work together to make the side clamping block 722 drive the part of the shopping cart frame 9 to be processed to move vertically downwards until the part of the shopping cart frame 9 to be processed is in place in the bending fixed mold 62. The bending motor 61 is started to drive the bending moving mold 63 to rotate servo. The bending processing of the shopping cart frame 9 is completed by the cooperation of the bending fixed mold 62 and the bending moving mold 63. Finally, the lifting linear module 82 drives the synchronous drive guide rail 81 to reset and release the shopping cart frame 9.

[0027] In this embodiment, the limiting component adopts a dovetail groove and dovetail block limiting structure.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-head bending machine for forming a shopping cart frame, comprising a base frame (1), characterized in that: The left and right ends of the base frame (1) are respectively fixedly installed with a linear guide rail (3) and a support frame (2). The left end of the base frame (1) is fixedly installed with a linear guide rail (3), and multiple sets of bending units are installed on the linear guide rail (3) along its length direction. The bending unit includes a support platform (4), a bending mechanism (6), and a synchronous limiting positioning mechanism (7). The support platform (4) is connected to the linear guide rail (3) by a linear slider (5). The bending mechanism (6) and the synchronous limiting positioning mechanism (7) are installed on the support platform (4), and the synchronous limiting positioning mechanism (7) is located between the bending mechanism (6) and the support frame (2). The synchronous limiting positioning mechanism (7) includes a support plate (71), a support flat clamp fixing component (72), and a linkage pull-down positioning component (73). The support plate (71) is fixedly installed on the right end of the support platform (4). The support flat clamp fixing component (72) and the linkage pull-down positioning component (73) are both installed on the support plate (71). The linkage pull-down positioning component (73) is located below the support flat clamp fixing component (72) and is connected to the support flat clamp fixing component (72). The base frame (1) is also equipped with a power mechanism (8), the output end of which is driven to be connected to the support flat clamp fixing assembly (72) of all bending units.

2. The multi-head bending machine for forming a shopping cart frame according to claim 1, characterized in that, The bending mechanism (6) includes a bending motor (61), a fixed bending die (62), and a moving bending die (63). The fixed bending die (62) is fixedly installed on the upper end of the support platform (4), and the moving bending die (63) is rotatably installed on the upper end of the support platform (4). The fixed bending die (62) and the moving bending die (63) are concentrically distributed. The bending motor (61) is fixedly installed on the lower end of the support platform (4), and the output end of the bending motor (61) is fixedly connected to the moving bending die (63).

3. The multi-head bending machine for forming a shopping cart frame according to claim 1, characterized in that, The supporting flat clamp fixing assembly (72) includes a transverse block (721), a side clamping block (722), a bottom stop (723), a limiting sleeve (724), and a drive assembly. There are two transverse blocks (721). The transverse blocks (721) can be horizontally slidably mounted on the support plate (71) through the limiting assembly. Each transverse block (721) is movably connected to a side clamping block (722). The two side clamping blocks (722) are provided with anti-slip textures at their close ends. The bottom stop (723) is fixedly mounted on one of the side clamping blocks (722), and the limiting sleeve (724) is fixedly mounted on the other side clamping block (722). The bottom stop (723) and the limiting sleeve (724) are slidably connected. The drive assembly is mounted on the support plate (71) and located below the transverse blocks (721). The output end of the drive assembly is connected to the two transverse blocks (721).

4. The multi-head bending machine for forming a shopping cart frame according to claim 3, characterized in that, The drive assembly includes a connecting plate (725), a drive groove (726), a drive rod (727), and a vertical slider (728). The lower end of the transverse block (721) is fixedly installed with a connecting plate (725). The connecting plate (725) has a drive groove (726) on it. The vertical slider (728) is vertically slidable on the support plate (71) through a limiting assembly. A drive rod (727) is fixedly installed at each end of the vertical slider (728), and the ends of the two drive rods (727) are respectively limited and slidably connected to the drive grooves (726) of the two connecting plates (725).

5. The multi-head bending machine for forming a shopping cart frame according to claim 4, characterized in that, The drive groove (726) is formed by connecting the upper inclined groove and the lower vertical groove.

6. The multi-head bending machine for forming a shopping cart frame according to claim 5, characterized in that, The linkage pull-down positioning component (73) includes an elastic element (731), a hook (732), and a pull rod (733). The lateral clamp (722) is vertically slidable and connected to the transverse block (721) through a limiting component. An elastic element (731) is fixedly installed between the lateral clamp (722) and the transverse block (721). The pull rod (733) is fixedly installed at the lower end of any lateral clamp (722), and the hook (732) is fixedly installed at the upper end of the vertical slider (728). The hook (732) is hooked to the pull rod (733).

7. The multi-head bending machine for forming a shopping cart frame according to claim 6, characterized in that, When the drive rod (727) is located in the inclined groove of the drive groove (726), the hook (732) hook structure is located on the upper side of the pull rod (733), and the two do not contact each other; when the drive rod (727) is located in the vertical groove of the drive groove (726), the hook (732) and the pull rod (733) hook together, and the two can move downward synchronously.

8. The multi-head bending machine for forming a shopping cart frame according to claim 7, characterized in that, The power mechanism (8) includes a synchronous drive rail (81) and a lifting linear module (82). The lifting linear module (82) is fixedly installed on the base frame (1). The output end of the lifting linear module (82) is fixedly connected to the synchronous drive rail (81). The synchronous drive rail (81) is set parallel to the linear rail (3). The vertical sliders (728) of all bending units are limited and slidably connected to the synchronous drive rail (81) through the slider, so that adjusting the position of the bending unit does not affect the driving effect of the power mechanism (8).

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