Inner ring bending machine

Abstract

The invention discloses an inner ring round bending machine, comprising: a frame, in which a conveying device, a cutting device, a rolling device, a round bending device, a material pushing device and a material storage device are arranged in sequence along the conveying direction of the belt, the rolling device comprises a plurality of rolling mechanisms; the structure of the round bending device comprises: a fixed seat, a cylinder body of a round bending oil cylinder is hinged to the fixed seat through an upper pin shaft, a piston rod of the round bending oil cylinder is hinged to a swing plate through an eccentric fine adjustment component, the front end of the swing plate is hinged to the roller shaft of the rolling upper roller in the last rolling mechanism, an upper pressure roller bracket is arranged on the swing plate, an upper pressure roller is supported on the upper pressure roller bracket, a lower pressure roller bracket is arranged below the upper pressure roller, a lower pressure roller driven to rotate by a motor is supported in the lower pressure roller bracket, the front end of the rear pressure roller bracket is hinged to the upper pressure roller bracket, a rear pressure roller is supported on the rear pressure roller bracket, and a round bending adjustment mechanism is arranged between the rear pressure roller bracket and the swing plate. The invention has the advantage of high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ring manufacturing equipment, and in particular to an inner ring bending machine. Background Art

[0002] At present, the inner ring is generally produced by stamping, that is, the strip (flat steel strip) is fed into the stamping die, the upper die and the lower die of the stamping die are closed, so that the strip is stamped into a ring, and then the upper die and the lower die are opened, and then the ring is taken out. The above stamping production method has the following disadvantages: frequent opening and closing of the die, and low production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide an inner ring bending machine with high production efficiency.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an inner ring bending machine, comprising: a frame, in which a conveying device for conveying the belt, a cutting device for cutting the belt, a rolling device for cold-bending the cut belt, a bending device for rolling the cold-bent belt into a ring, a pushing device for pushing the ring out of the bending device, and a storage device for collecting the ring pushed out by the pushing device are arranged in sequence along the conveying direction of the belt, the rolling device comprises a plurality of rolling mechanisms that can roll-form the belt and are distributed in sequence along the conveying direction of the belt, each rolling mechanism comprises an upper rolling roller and a lower rolling roller that can roll-form the belt in an upper and lower relative state; the structure of the bending device comprises: a fixed seat fixed to the frame, a cylinder body of a bending cylinder The upper pin is hinged to the fixed seat, the piston rod of the bending cylinder is hinged to the middle part of the swing plate through the eccentric fine-tuning component, the front end of the swing plate is hinged to the roller shaft of the rolling upper roller in the last rolling mechanism in the rolling device, an upper pressure roller bracket is fixed to the middle part of the swing plate, the upper pressure roller located below the swing plate is supported on the upper pressure roller bracket, a lower pressure roller bracket installed on the fixed seat is arranged below the upper pressure roller, a lower pressure roller corresponding to the upper pressure roller upward and driven to rotate by a motor is supported in the lower pressure roller bracket, the front end of the rear pressure roller bracket is hinged to the upper pressure roller bracket, the rear pressure roller located behind the upper pressure roller and the lower pressure roller is supported on the rear pressure roller bracket, and a bending adjustment mechanism is arranged between the rear end of the rear pressure roller bracket and the rear end of the swing plate, which can drive the rear pressure roller bracket to rotate relative to the upper pressure roller bracket so that the rear pressure roller can approach or move away from the lower pressure roller.

[0005] Furthermore, the aforementioned inner ring bending machine, wherein: the structure of the bending adjustment mechanism includes: a first rotating shaft is supported at the rear end of the rear pressure roller bracket, a rotating block is arranged at the rear end of the swing plate, the rotating block is hinged to the rear end of the swing plate through the first rotating shaft running left and right, a bending adjustment screw is vertically installed on the rotating block, and the screw can only rotate relative to the rotating block but cannot move up and down relative to the rotating block, a bending adjustment handle is installed at the upper end of the bending adjustment screw, and the lower end of the bending adjustment screw passes downward through the first rotating shaft and is threadedly connected to the first rotating shaft.

[0006] Furthermore, the aforementioned inner ring bending machine, wherein: the structure of the eccentric fine-tuning assembly includes: an eccentric adjusting shaft, a downward pressing connecting seat, and a connecting ear plate, the downward pressing connecting seat is fixedly mounted on the middle top end of the swing plate, the eccentric adjusting shaft is composed of a mounting shaft section and an eccentric shaft section, the axis of the eccentric shaft section does not coincide with the axis of the mounting shaft section, so that the eccentric shaft section and the mounting shaft section are eccentric, the eccentric adjusting shaft is supported in the downward pressing connecting seat through the mounting shaft section, an adjusting sleeve that can cooperate with an external wrench is fixed to one side shaft end of the mounting shaft section of the eccentric adjusting shaft, a mounting hole is arranged on the connecting ear plate, and the connecting ear plate is movably mounted on the eccentric shaft section of the eccentric adjusting shaft through the mounting hole.

[0007] Furthermore, in the aforementioned inner ring bending machine, a discharge guide mechanism is arranged between the rolling device and the bending device, which can smoothly guide the strip output by the rolling device into the bending device, and the structure of the discharge guide mechanism includes: a discharge guide base plate fixedly installed on the frame between the rolling device and the bending device, the discharge guide base plate is used to receive the strip output by the rolling device, and a plurality of side guide pressure wheels for limiting the left and right positions of the strip are respectively arranged on the left and right sides of the top of the discharge guide base plate, a discharge pressure wheel bracket is installed on the discharge guide base plate, and an upper guide pressure wheel is arranged on the discharge pressure wheel bracket.

[0008] Furthermore, in the aforementioned inner ring bending machine, a front pressure roller facing downward to the discharge guide bottom plate is arranged directly in front of the upper pressure roller, the front pressure roller is supported in a front pressure roller bracket, and the front pressure roller bracket is fixed on the swing plate.

[0009] Furthermore, in the aforementioned inner ring bending machine, the structure of the conveying device includes: a motor and a material belt base fixedly mounted on the frame, a side lower support seat is vertically mounted on the left and right sides of the top of the material belt base respectively, a material belt lower roller shaft is supported between the two side lower support seats, the output shaft of the motor is connected through a gear box and an overrunning clutch and drives the material belt lower roller shaft to rotate, a material belt lower roller is mounted on the material belt lower roller shaft, a side upper support seat is arranged above each side lower support seat, and each side upper support seat is connected to the lower side by a plurality of guide rods. The corresponding lower side support seats are fixedly connected together, and a slider is arranged between each pair of corresponding lower side support seats and upper side support seats, and each slider is slidably arranged on the guide rod between the corresponding lower side support seat and the upper side support seat, and an upper roller shaft with material is supported between the sliders on both sides, and an upper roller with material is mounted on the upper roller shaft with material, and a lifting and adjusting screw rod is vertically installed on each upper side support seat, which can only rotate in the corresponding upper side support seat but cannot move up and down, and the lower end of each lifting and adjusting screw rod is inserted into the corresponding slider below and is threadedly connected to the slider.

[0010] Furthermore, in the aforementioned inner ring bending machine, a feed guide mechanism is arranged in front of the conveying device, which can smoothly guide the belt into the conveying device, and the structure of the feed guide mechanism includes: a feed guide support, an upper feed guide roller and a lower feed guide roller which can be arranged correspondingly up and down are supported at the front end of the feed guide support, and a first positive and negative bidirectional adjustment screw is supported at the rear end of the feed guide support, and a first slide is threadedly connected to the positive thread section and the negative thread section of the first positive and negative bidirectional adjustment screw respectively, and a plurality of first side feed guide wheels for limiting the left and right positions of the belt are respectively supported on the two first slides.

[0011] Furthermore, the aforementioned inner ring bending machine, wherein: the structure of the cutting device includes: a cutting base plate fixedly mounted on a frame, a cutting support plate vertically mounted on the top of the cutting base plate, a strip mounting opening penetrating the cutting support plate front and back is provided in the middle of the cutting support plate, a fixed cutting die is fixed on the rear end face of the cutting support plate, a cutting channel facing the strip mounting opening and just for the belt to pass through is provided on the fixed cutting die, a cutting knife is slidably provided on the rear end face of the fixed cutting die, the cutting knife is connected to the piston rod of a cutting cylinder mounted on the top of the cutting support plate, the piston rod of the cutting cylinder can cut the belt extending out of the cutting channel of the fixed cutting die when it is extended downward, and a cutting material centering guide mechanism capable of centering the belt into the cutting channel is provided at the input end of the cutting channel of the fixed cutting die.

[0012] Furthermore, the aforementioned inner ring bending machine, wherein: the structure of the pushing device includes: two discharging roller adjustment seats distributed front and back are fixed on the frame below the bending device, each discharging roller adjustment seat is provided with a waist-shaped long hole, the two waist-shaped long holes of the two discharging roller adjustment seats are distributed in an "eight" shape, and a roller shaft that can move along the corresponding waist-shaped long hole is respectively passed through the waist-shaped long hole of each discharging roller adjustment seat, each roller shaft is locked and fixed to the corresponding discharging roller adjustment seat by a locking bolt, and a discharging roller is mounted on each roller shaft, and the discharging rollers on the two roller shafts jointly form a supporting platform for supporting the ring parts; a pushing cylinder is fixedly installed on the frame between the two discharging roller adjustment seats, and a pushing plate is installed on the piston rod of the pushing cylinder, and when the piston rod of the pushing cylinder is extended, the pushing plate can be driven to push the ring parts on the supporting platform to the storage device.

[0013] Furthermore, the aforementioned inner ring bending machine, wherein: the structure of the storage device includes: a storage bracket, a conveyor belt is arranged on the storage bracket, the front end of the conveyor belt is located directly below the material supporting platform, baffles and mesh plates are respectively arranged on the storage brackets on the left and right sides of the conveyor belt, and a storage box for collecting rings is arranged below the rear end of the conveyor belt.

[0014] Through the implementation of the above technical scheme, the beneficial effects of the present invention are: the flat steel strip can be automatically cut into strips of preset length, and the strips can be automatically rolled and cold-bent into shape, and the strips can be automatically bent into a circle, and finally the rings can be collected and stored, thereby realizing uninterrupted continuous production of rings with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of an inner ring bending machine described in the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure from a top-down perspective.

[0017] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure.

[0018] Figure 4 It is a structural schematic diagram of the circle bending device.

[0019] Figure 5 for Figure 4 Schematic diagram of the structure of the AA section shown in FIG.

[0020] Figure 6 for Figure 5 An enlarged schematic diagram of site B shown in FIG.

[0021] Figure 7It is a cross-sectional schematic diagram of the circle bending device.

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the eccentric adjustment shaft.

[0023] Fig. 9 It is a schematic diagram of the structure of the conveying device.

[0024] Fig.10 It is a schematic diagram of the structure of the cutting device.

[0025] Fig.11 for Fig.10 Schematic diagram of the structure in the rear-view direction.

[0026] Fig.12 for Fig.10 Schematic diagram of the structure from the left view direction.

[0027] Fig.13 for Fig.12 Schematic diagram of the structure of the DD section shown in.

[0028] Fig.14 It is a structural schematic diagram of the feed guide mechanism.

[0029] Fig.15 for Fig.14 Schematic diagram of the structure from a top-down perspective.

[0030] Fig.16 for Fig.15 Schematic diagram of the structure of the EE section shown in .

[0031] Fig.17 It is a structural schematic diagram of the rolling device.

[0032] Fig.18 It is a structural schematic diagram of the rolling mechanism.

[0033] Fig.19 for Fig.18 Schematic diagram of the structure of the FF cross section shown in.

[0034] Fig. 20 It is a structural schematic diagram of the pushing device.

[0035] Fig.21 for Fig. 20 Schematic diagram of the structure from the right side.

[0036] Fig. 22 It is a structural schematic diagram of the discharge guide mechanism.

[0037] Fig.23 for Fig. 22 Schematic diagram of the structure from a top-down perspective.

[0038] Fig.24 for Fig. 22 Schematic diagram of the three-dimensional structure.

[0039] Fig.25 It is a structural schematic diagram of the storage device. DETAILED DESCRIPTION

[0040] like Figure 1 , Figure 2 , Figure 3 As shown, the inner ring bending machine comprises: a frame 1, in which a conveying device 2 for conveying the belt, a cutting device 3 for cutting the belt, a rolling device for cold-bending the cut belt, a bending device 5 for rolling the cold-bent belt into a ring, a pushing device 6 for pushing the ring out of the bending device 5, and a storage device 7 for collecting the ring pushed out by the pushing device 6 are arranged in sequence along the belt conveying direction. The rolling device comprises a plurality of rolling mechanisms 41 capable of roll-forming the belt and spaced in sequence along the belt conveying direction. Each rolling mechanism 41 comprises an upper rolling roller 42 and a lower rolling roller 43 capable of roll-forming the belt in an upper and lower relative state. The difference between the rolling mechanisms 41 is only that the cross-sectional shapes of the upper rolling roller 42 and the lower rolling roller 43 are different. The structure of the last rolling mechanism is taken as an example for explanation below. Fig.17 , Fig.18 , Fig.19As shown, the specific structure of the rolling mechanism 41 includes: a rolling base 411 fixedly installed on the frame 1, a rolling side lower support seat 412 is vertically installed on the left and right sides of the top of the rolling base 411, a rolling lower roller shaft 413 is supported between the two rolling side lower support seats 412, the output shaft of the motor 519 is connected through the gear box 24 and drives the rolling lower roller shaft 413 to rotate, and a rolling lower roller 43 is mounted on the rolling lower roller shaft 413, and a rolling side upper support seat 417 is arranged above each rolling side lower support seat 412, and each rolling side upper support seat 417 is fixedly connected to the corresponding rolling side lower support seat 412 below through a plurality of guide rods 418, and a rolling slider 419 is arranged between each pair of corresponding rolling side lower support seats 412 and rolling side upper support seats 417, and each rolling slider The upper roller 420 is supported between the rolling sliders 419 on both sides, and the upper roller 420 is mounted on the upper roller shaft 420. A rolling lifting adjustment screw rod 421 which can only rotate in the corresponding rolling side support seat 417 but cannot move up and down is vertically installed on each rolling side support seat 417. The lower end of each rolling lifting adjustment screw rod 421 is inserted into the corresponding rolling slider 419 below and is threadedly connected to the rolling slider 419. At the same time, when the rolling lifting adjustment screw rod 421 is rotated forward or reversely, the two rolling sliders 419 can be driven to move upward or downward, and the upper roller 42 can be driven to move upward or downward synchronously, so as to adjust the rolling gap between the upper roller 42 and the lower roller 43.

[0041] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the structure of the bending device 5 includes: a fixed seat 51 fixed to the frame 1, a cylinder body of the bending cylinder 52 is hinged to the fixed seat 51 through an upper pin 53, a piston rod of the bending cylinder 52 is hinged to the middle part of the swing plate 54 through an eccentric fine-tuning component, the front end of the swing plate 54 is hinged to the rolling upper roller shaft 420 of the rolling upper roller 42 in the last rolling mechanism 41 in the rolling device, an upper pressure roller bracket 55 is fixed to the middle part of the swing plate 54, an upper pressure roller 56 located below the swing plate 54 is supported on the upper pressure roller bracket 55, and a lower pressure roller bracket 57 installed on the fixed seat 51 is arranged below the upper pressure roller 56, and a corresponding upper pressure roller 56 upward is supported in the lower pressure roller bracket 57 and driven by a motor 519 The lower pressure roller 58 rotates, and the front end of the rear pressure roller bracket 59 is hinged on the upper pressure roller bracket 55. The gap between the upper pressure roller 56 and the lower pressure roller 58 is a bending feed channel. The rear pressure roller bracket 59 supports a rear pressure roller 510 located behind the upper pressure roller 56 and the lower pressure roller 58, so that the bottom edge of the rear pressure roller 510 is lower than the bending feed channel. A bending adjustment mechanism is provided between the rear end of the rear pressure roller bracket 59 and the rear end of the swing plate 54, which can drive the rear pressure roller bracket 59 to rotate relative to the upper pressure roller bracket 55 so that the rear pressure roller 510 can approach or move away from the lower pressure roller 58. The closer the rear pressure roller 510 is to the lower pressure roller 58, the smaller the diameter of the ring to be bent, and the farther the rear pressure roller 510 is from the lower pressure roller 58, the larger the diameter of the ring to be bent.

[0042] In this embodiment, the structure of the bending adjustment mechanism includes: a first rotating shaft 511 is supported at the rear end of the rear pressure roller bracket 59, a rotating block 512 is arranged at the rear end of the swing plate 54, the rotating block 512 is hinged to the rear end of the swing plate 54 through the first rotating shaft extending left and right, a bending adjustment screw rod 513 which can only rotate relative to the rotating block 512 but cannot move up and down relative to the rotating block 512 is vertically installed on the rotating block 512, a bending adjustment handle 514 is installed at the upper end of the bending adjustment screw rod 513, and the lower end of the bending adjustment screw rod 513 passes downward through the first rotating shaft 511 and is threadedly connected to the first rotating shaft 511. The above bending adjustment mechanism has a simple structure and is easy to install and maintain;

[0043] In this embodiment, the structure of the eccentric fine-tuning assembly includes: an eccentric adjustment shaft 515, a downward pressure connecting seat 516, and a connecting ear plate 517. The downward pressure connecting seat 516 is fixedly installed at the middle top of the swing plate 54. The eccentric adjustment shaft 515 is composed of a mounting shaft section 5151 and an eccentric shaft section 5152. The axis of the eccentric shaft section 5152 does not coincide with the axis of the mounting shaft section 5151, so that the eccentric shaft section 5152 is eccentric to the mounting shaft section 5151. The eccentric adjustment shaft 515 is supported in the downward pressure connecting seat 516 through the mounting shaft section 5151. One side shaft end of the mounting shaft section 5151 of the eccentric adjusting shaft 515 is fixed with an adjusting sleeve 518 that can cooperate with an external wrench, and a mounting hole 5171 is provided on the connecting ear plate 517, and the connecting ear plate 517 is movably sleeved on the eccentric shaft section 5152 of the eccentric adjusting shaft 515 through the mounting hole 5171; when the mounting shaft section 5151 of the eccentric adjusting shaft 515 is rotated by the external wrench, since the eccentric shaft section 5152 is connected to the connecting ear plate 517, when the piston rod of the bending cylinder 52 stops moving, the upper and lower positions of the eccentric shaft section 5152 are fixed, so when the eccentric adjusting shaft 515 is rotated, the eccentric shaft section 5152 is fixed. During the process of installing the shaft segment 5151 of the eccentric shaft segment 5152, since the eccentric shaft segment 5152 is eccentric to the installing shaft segment 5151, the axis of the installing shaft segment 5151 will gradually move upward or downward relative to the axis of the eccentric shaft segment 5152. When the axis of the installing shaft segment 5151 gradually moves downward relative to the axis of the eccentric shaft segment 5152, it will push the swing plate 54 to continue to swing downward around the rolling upper roller 42, thereby pushing the upper pressure roller 56 to move downward close to the lower pressure roller 58, thereby reducing the gap between the upper pressure roller 56 and the lower pressure roller 58. When the axis of the installing shaft segment 5151 moves downward relative to the axis of the eccentric shaft segment 5152, the swing plate 54 will continue to swing downward around the rolling upper roller 42, thereby pushing the upper pressure roller 56 to move downward close to the lower pressure roller 58, thereby reducing the gap between the upper pressure roller 56 and the lower pressure roller 58. When the axis of 152 gradually moves upward, it will push the swing plate 54 to continue to swing upward around the rolling upper roller 42, and then push the upper pressure roller 56 to move upward, thereby increasing the gap between the upper pressure roller 56 and the lower pressure roller 58. By fine-tuning the gap between the upper pressure roller 56 and the lower pressure roller 58, the upper pressure roller 56 and the lower pressure roller 58 can better cooperate to press the conveyor belt, thereby improving the working stability of the equipment; in actual use, the gap between the upper pressure roller 56 and the lower pressure roller 58 is roughly adjusted by the bending cylinder 52, and the gap between the upper pressure roller 56 and the lower pressure roller 58 is fine-tuned by the eccentric fine-tuning component;

[0044] In this embodiment, a material discharging guide mechanism 8 is provided between the rolling device and the rounding device 5, which can smoothly guide the strip output by the rolling device into the rounding device 5. Fig. 22 , Fig.23 , Fig.24As shown, the structure of the discharge guide mechanism 8 includes: a discharge guide bottom plate 81 fixedly mounted on the frame 1 between the rolling device and the rounding device 5, the discharge guide bottom plate 81 is used to receive the belt output by the rolling device, and a plurality of side guide pressure wheels 82 for limiting the left and right positions of the belt are respectively arranged on the left and right sides of the top of the discharge guide bottom plate 81, a discharge pressure wheel bracket 83 is installed on the discharge guide bottom plate 81, and an upper guide pressure wheel 84 is arranged on the discharge pressure wheel bracket 83. The guide pressing wheel 84 is located between the side guide pressing wheels 82 on both sides and directly above the discharge guide bottom plate 81. The upper guide pressing wheel 84 is used to limit the upper and lower positions of the belt. In this embodiment, a front pressing roller 520 facing downward to the discharge guide bottom plate 81 is arranged directly in front of the upper pressing roller 56. The front pressing roller 520 is supported in a front pressing roller bracket 521. The front pressing roller bracket 521 is fixed on the swing plate 54. The front pressing roller can prevent the belt from entering the front warping edge between the upper pressing roller 56 and the lower pressing roller 58.

[0045] In this embodiment, if Fig. 9 As shown, the structure of the conveying device 2 includes: a motor 519 and a material base 21 fixedly mounted on the frame 1, a side lower support seat 22 is vertically mounted on the left and right sides of the top of the material base 21, and a material lower roller shaft 23 is supported between the two side lower support seats 22. The output shaft of the motor 519 is connected through a gear box 24 and an overrunning clutch 25 to drive the material lower roller shaft 23 to rotate, and a material lower roller 26 is mounted on the material lower roller shaft 23. A side upper support seat 27 is arranged above each side lower support seat 22, and each side upper support seat 27 is fixedly connected to the corresponding side lower support seat 22 below through a plurality of guide rods 28. A slider 29 is arranged between each pair of corresponding side lower support seats 22 and side upper support seats 27, and each slider The upper roller 210 of the belt material is supported between the sliders 29 on both sides, and the upper roller 211 of the belt material is mounted on the upper roller 210 of the belt material. A lifting and adjusting screw rod 212 which can only rotate in the corresponding upper support seat 27 but cannot move up and down is vertically installed on each upper support seat 27. The lower end of each lifting and adjusting screw rod 212 is inserted into the corresponding slider 29 below and is threadedly connected with the slider 29. The above-mentioned conveying device has a simple structure and is easy to operate. Moreover, through the design of the overrunning clutch, the conveying speed of the conveying device to the belt member can be made lower than the conveying speed of the rolling device to the belt member, thereby avoiding the occurrence of the phenomenon of chasing and piling of the belt member, and further improving the operation stability of the equipment.

[0046] In this embodiment, a feed guide mechanism 9 is provided in front of the conveying device 2 to enable the belt to be smoothly introduced into the conveying device 2. Fig.14 , Fig.15 , Fig.16As shown, the structure of the feed guide mechanism 9 includes: a feed guide support 91, an upper feed guide roller 92 and a lower feed guide roller 93 which can be arranged in an upper and lower correspondence are supported at the front end of the feed guide support 91, a first positive and negative thread bidirectional adjustment screw 94 is supported at the rear end of the feed guide support 91, a first slide 95 is threadedly connected to the positive thread section and the negative thread section of the first positive and negative thread bidirectional adjustment screw 94, and a plurality of first side feed guide wheels 96 for limiting the left and right positions of the belt are supported on the two first slides 95, respectively. The feed guide mechanism has a simple structure and is easy to install and maintain;

[0047] In this embodiment, if Fig.10 , Fig.11 , Fig.12 , Fig.13 As shown, the structure of the cutting device 3 includes: a cutting base plate 31 fixedly mounted on the frame 1, a cutting support plate 32 vertically mounted on the top of the cutting base plate 31, a strip-shaped mounting opening 33 penetrating the cutting support plate from front to back is arranged in the middle of the cutting support plate 32, a fixed cutting die 34 is fixed on the rear end face of the cutting support plate 32, a cutting channel 35 facing the strip-shaped mounting opening 33 and just for the belt to pass through is arranged on the fixed cutting die 34, a cutting knife 36 is slidably arranged on the rear end face of the fixed cutting die 34, the cutting knife 36 is connected to the piston rod of the cutting cylinder 37 mounted on the top of the cutting support plate 32, and the piston rod of the cutting cylinder 37 can cut the belt extending out of the cutting channel 35 of the fixed cutting die 34 when it is extended downward; a cutting material centering guide mechanism capable of centering the belt and introducing it into the cutting channel 35 is arranged at the input end of the cutting channel 35 of the fixed cutting die 34; the cutting material centering guide mechanism The structure of the structure includes: a second forward and reverse bidirectional adjustment screw 38 is arranged in the cutting support plate 32 and passes through the strip-shaped installation opening 33 in a left-right direction; a second slide seat 39 is respectively threadedly connected to the forward thread section and the reverse thread section of the second forward and reverse bidirectional adjustment screw 38; a plurality of second side feed guide wheels 310 for limiting the left and right positions of the belt pieces are respectively supported on the two second slide seats 39; two left-right distributed guide fixing plates 311 are fixed on the front end surface of the cutting support plate 32; a guide pressing plate 312 is installed on each guide fixing plate 311; the lower ends of the relatively inner sides of the two guide pressing plates 312 are respectively provided with a long notch that passes through the corresponding guide pressing plates 312 from front to back, so that the two guide fixing plates 311 and the two guide pressing plates 312 can jointly form a guide channel for the belt pieces to pass through; the above-mentioned cutting device has a simple structure and is easy to operate;

[0048] In this embodiment, if Fig. 20 , Fig.21As shown, the structure of the pushing device 6 includes: two discharging roller adjustment seats 61 distributed front and back are fixed on the frame 1 below the bending device 5, and a waist-shaped long hole 62 is set on each discharging roller adjustment seat 61. The two waist-shaped long holes 62 of the two discharging roller adjustment seats 61 are distributed in an "eight" shape, and a roller shaft 63 that can move along the corresponding waist-shaped long hole 62 is respectively penetrated in the waist-shaped long hole 62 of each discharging roller adjustment seat 61, and each roller shaft 63 is locked and fixed to the corresponding discharging roller adjustment seat by a locking bolt. On the seat 61, a discharge roller 64 is mounted on each roller shaft 63, and the discharge rollers 64 on the two roller shafts 63 together form a supporting platform for supporting the rings; a push cylinder 65 is fixedly mounted on the frame 1 between the two discharge roller adjustment seats 61, and a push plate 66 is mounted on the piston rod of the push cylinder 65. When the piston rod of the push cylinder 65 is extended, the push plate 66 can be driven to push the rings on the supporting platform to the storage device 7. The above-mentioned push device has a simple structure and is easy to install and maintain; in this embodiment, as Fig.25 As shown, the structure of the storage device 7 includes: a storage bracket 71, a conveyor belt 72 is arranged on the storage bracket 71, the front end of the conveyor belt 72 is located directly below the material support platform, baffles 73 and mesh plates 74 are respectively arranged on the storage brackets 71 on the left and right sides of the conveyor belt 72, and a storage box 75 for collecting rings is arranged below the rear end of the conveyor belt 72. The above storage device has a simple structure and is easy to install and maintain, and the staff can observe the unloading of the rings in real time through the mesh holes on the mesh plate 74;

[0049] In this embodiment, the power sources of the conveying device 2, the rolling device 4, and the bending device 5 are all motors 519. The motor 519 directly drives the rolling lower rollers 43 in each rolling mechanism 41 in the rolling device 4 to rotate through the gear box 24. The motor 519 directly drives the lower pressure roller 58 in the bending device 5 to rotate through the gear box 24. The motor 519 is connected through the gear box 24 and the overrunning clutch 25 and drives the belt material lower roller shaft 23 to rotate, thereby driving the belt material lower roller 26 to rotate; thereby, the conveying speed of the conveying device 2 to the belt is smaller than the conveying speed of the rolling device 4 and the bending device 5 to the belt, avoiding the occurrence of belt chasing and piling, and further improving the operation stability of the equipment;

[0050] The working principle of the present invention is as follows:

[0051] The flat steel strip first passes between the upper feed guide roller 92 and the lower feed guide roller 93 of the feed guide mechanism 9, and then enters between the upper belt roller 211 and the lower belt roller 26 of the conveying device 2 after being guided and centered by the first side feed guide wheels 96 on both sides. At this time, the motor 519 is connected through the gear box 24 and the overrunning clutch 25 and drives the lower belt roller shaft 23 to rotate, thereby driving the lower belt roller 26 to rotate, so that the upper belt roller 211 and the lower belt roller 26 are opposite to each other in the upper and lower directions, and the flat steel strip is sent forward through the cutting material centering guide mechanism into the cutting channel 35 of the cutting device 3. When the length of the flat steel strip sent to the cutting device 3 reaches the preset length, the cutting device 3 is The cutting oil cylinder 37 is actuated to drive the cutter 36 downward to cut the flat steel strip passing through the cutting channel. Before the cutting device 3 cuts the flat steel strip, the rear end of the strip has been sent to the rolling device 4. At this time, the rolling device 4 will drive the flat steel strip to move backward. Since the conveying speed of the rolling device 4 to the flat steel strip is greater than the conveying speed of the conveying device 2 to the flat steel strip, due to the existence of the overrunning clutch 25, the upper belt roller 211 and the lower belt roller 26 of the conveying device 2 will slip and temporarily fail to convey the flat steel strip backward. Only when the cutting device 3 cuts the flat steel strip, the conveying device 2 resumes the function of conveying the flat steel strip backward.

[0052] After the cutting device 3 cuts the flat steel strip, the rolling device 4 is started, so that the upper rolling roller 42 and the lower rolling roller 43 of each rolling mechanism 41 in the rolling device 4 roll the strip into shape and convey it backward; the strip rolled into shape by the rolling device 4 is guided by the discharge guide mechanism 8 and first passes between the front pressure roller 520 of the bending device 5 and the discharge guide bottom plate 81. The front pressure roller 520 is used to prevent the strip from warping before entering the bending feed channel between the upper pressure roller 56 and the lower pressure roller 58. As the strip continues to be conveyed backward, when the strip enters between the upper pressure roller 56 and the lower pressure roller 58 of the bending device 5, the bending cylinder 52 is started, so that the piston rod of the bending cylinder 52 extends downward, driving the swing plate 54 to move around the rolling device 4. The rolling upper roller 42 of the last rolling mechanism 41 rotates backward and downward, so that the upper pressing roller 56 moves downward and approaches the lower pressing roller 58, so that the upper pressing roller 56 and the lower pressing roller 58 can convey the belt backward in an upward and downward relative state. When the belt passes through the rear pressing roller 510 backward, the belt will be automatically bent into a ring. In the process of bending the belt into a ring, the ring will first be supported on the discharge support roller 64 of the pushing device 6. After the belt has been bent into a ring, the pushing cylinder 65 in the pushing device 6 is started, so that the pushing cylinder 65 drives the pushing plate 66 to move outward and push the ring out of the pushing device 6. The ring pushed out of the pushing device 6 will fall onto the conveyor belt 72 of the storage device 7, and then be transported backward to the storage box 75 via the conveyor belt 72 for storage.

[0053] The advantages of the present invention are that it can automatically cut a flat steel strip into strips of preset length, automatically roll and cold-bend the strips, automatically bend the strips into a circle, and finally collect and store the rings, thus realizing uninterrupted and continuous production of the rings with high production efficiency.

Claims

1. An inner ring bending machine, comprising: The frame is characterized in that: a conveying device for conveying the belt, a cutting device for cutting the belt, a rolling device for cold-bending the cut belt, a bending device for rolling the cold-bent belt into a ring, a pushing device for pushing the ring out of the bending device, and a storage device for collecting the ring pushed out by the pushing device are arranged in sequence in the frame along the conveying direction of the belt. The rolling device comprises a plurality of rolling mechanisms that can roll-form the belt and are distributed in sequence along the conveying direction of the belt at intervals. Each rolling mechanism comprises an upper rolling roller and a lower rolling roller that can roll-form the belt in an upper and lower relative state. The structure of the bending device comprises: a fixed seat fixed to the frame, a cylinder body of a bending cylinder is hinged to the fixed seat through an upper pin shaft, and a bending The piston rod of the circular oil cylinder is hinged to the middle part of the swing plate through an eccentric fine-tuning component, the front end of the swing plate is hinged to the roller shaft of the rolling upper roller in the last rolling mechanism of the rolling device, an upper pressure roller bracket is fixed to the middle part of the swing plate, the upper pressure roller located below the swing plate is supported on the upper pressure roller bracket, a lower pressure roller bracket installed on a fixed seat is arranged below the upper pressure roller, a lower pressure roller corresponding to the upper pressure roller upward and driven to rotate by a motor is supported in the lower pressure roller bracket, the front end of the rear pressure roller bracket is hinged to the upper pressure roller bracket, the rear pressure roller located behind the upper pressure roller and the lower pressure roller is supported on the rear pressure roller bracket, and a bending adjustment mechanism that can drive the rear pressure roller bracket to rotate relative to the upper pressure roller bracket so that the rear pressure roller can approach or move away from the lower pressure roller is arranged between the rear end of the rear pressure roller bracket and the rear end of the swing plate; The structure of the bend adjustment mechanism includes: a first rotating shaft is supported at the rear end of the rear pressure roller bracket, a rotating block is arranged at the rear end of the swing plate, the rotating block is hinged to the rear end of the swing plate through the first rotating shaft extending left and right, a bend adjustment screw rod is vertically installed on the rotating block, which can only rotate relative to the rotating block but cannot move up and down relative to the rotating block, a bend adjustment handle is installed at the upper end of the bend adjustment screw rod, and the lower end of the bend adjustment screw rod passes downward through the first rotating shaft and is threadedly connected to the first rotating shaft; The structure of the eccentric fine-tuning assembly includes: an eccentric adjustment shaft, a downward pressure connection seat, and a connecting ear plate. The downward pressure connection seat is fixedly installed on the middle top of the swing plate. The eccentric adjustment shaft is composed of a mounting shaft section and an eccentric shaft section. The axis of the eccentric shaft section does not coincide with the axis of the mounting shaft section, so that the eccentric shaft section and the mounting shaft section are eccentric. The eccentric adjustment shaft is supported in the downward pressure connection seat through the mounting shaft section. An adjustment sleeve that can be matched with an external wrench is fixed to one side of the shaft end of the mounting shaft section of the eccentric adjustment shaft. A mounting hole is provided on the connecting ear plate. The connecting ear plate is movably sleeved on the eccentric shaft section of the eccentric adjustment shaft through the mounting hole. A discharge guide mechanism is arranged between the rolling device and the bending device, which can smoothly guide the strip output by the rolling device into the bending device, and the structure of the discharge guide mechanism includes: a discharge guide base plate fixedly installed on the frame between the rolling device and the bending device, the discharge guide base plate is used to receive the strip output by the rolling device, and a plurality of side guide pressure wheels for limiting the left and right positions of the strip are respectively arranged on the left and right sides of the top of the discharge guide base plate, a discharge pressure wheel bracket is installed on the discharge guide base plate, and an upper guide pressure wheel is arranged on the discharge pressure wheel bracket.

2. The inner ring bending machine according to claim 1, characterized in that: A front pressing roller facing downwards to the discharging guide bottom plate is arranged directly in front of the upper pressing roller. The front pressing roller is supported in a front pressing roller bracket, and the front pressing roller bracket is fixed on the swing plate.

3. The inner ring bending machine according to claim 1, characterized in that: The driving mechanism that the cam is in the movement direction of being moved up and down and is convenient to carrying out the driving of the cam and is convenient to carrying out the driving of the cam and is convenient to carrying out the driving of the cam and is convenient to carrying out the driving of the cam and is convenient to carrying out the driving of the cam and is convenient to carrying out the 4. The inner ring bending machine according to claim 3, characterized in that: A feed guide mechanism is arranged in front of the conveying device, which can smoothly guide the belt into the conveying device. The structure of the feed guide mechanism includes: a feed guide support, an upper feed guide roller and a lower feed guide roller which can be arranged correspondingly up and down are supported at the front end of the feed guide support, and a first positive and negative bidirectional adjustment screw is supported at the rear end of the feed guide support, and a first slide is threadedly connected to the positive thread section and the negative thread section of the first positive and negative bidirectional adjustment screw respectively, and a plurality of first side feed guide wheels for limiting the left and right positions of the belt are respectively supported on the two first slides.

5. The inner ring bending machine according to claim 1, characterized in that: The structure of the cutting device includes: a cutting base plate fixedly installed on a frame, a cutting support plate vertically installed on the top of the cutting base plate, a strip installation opening that passes through the cutting support plate front and back is provided in the middle of the cutting support plate, a fixed cutting die is fixed on the rear end face of the cutting support plate, a cutting channel that is opposite to the strip installation opening and just for the belt to pass through is provided on the fixed cutting die, a cutting knife is slidably provided on the rear end face of the fixed cutting die, the cutting knife is connected to the piston rod of the cutting cylinder installed on the top of the cutting support plate, and the piston rod of the cutting cylinder can cut the belt extending out of the cutting channel of the fixed cutting die when it is extended downward.

6. The inner ring bending machine according to claim 5, characterized in that: The structure of the pushing device includes: two discharging roller adjustment seats distributed front and back are fixed on the frame below the bending device, each discharging roller adjustment seat is provided with a waist-shaped long hole, and the two waist-shaped long holes of the two discharging roller adjustment seats are distributed in an "eight" shape, and a roller shaft that can move along the corresponding waist-shaped long hole is respectively penetrated in the waist-shaped long hole of each discharging roller adjustment seat, and each roller shaft is locked and fixed to the corresponding discharging roller adjustment seat by a locking bolt, and a discharging roller is mounted on each roller shaft, and the discharging rollers on the two roller shafts jointly form a supporting platform for supporting the rings; a pushing cylinder is fixedly installed on the frame between the two discharging roller adjustment seats, and a pushing plate is installed on the piston rod of the pushing cylinder, and when the piston rod of the pushing cylinder is extended, it can drive the pushing plate to push the rings on the supporting platform to the storage device.

7. An inner ring bending machine according to claim 6, characterized in that: The structure of the storage device includes: a storage bracket, a conveyor belt is arranged on the storage bracket, the front end of the conveyor belt is located directly below the supporting platform, baffles and mesh plates are respectively arranged on the storage brackets on the left and right sides of the conveyor belt, and a storage box for collecting rings is arranged below the rear end of the conveyor belt.

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