Durable tipping three-high coil sheet machine

Abstract

A durable overturning three-roller plate bending machine comprises a bottom plate, a left supporting plate, a right supporting plate, a left lifting block, a right lifting block, an upper roller, a lower roller and an overturning mechanism. The overturning mechanism comprises a second rotating shaft, a shaft seat, a clamping plate, a supporting piece and a third rotating shaft. The right end of the upper roller is coaxially and integrally connected with the second rotating shaft. The shaft seat is sleeved on the second rotating shaft. The third rotating shaft is arranged on the right lifting block. The upper end of the clamping plate is provided with a clamping hole. The lower end of the clamping plate is provided with a U-shaped groove. The two side surfaces of the U-shaped groove are rotationally connected with the third rotating shaft. The clamping plate rotates counterclockwise relative to the right lifting block. The shaft seat enters the clamping hole. The top surface of the U-shaped groove is in contact with the top surface of the right lifting block. The upper surface of the supporting piece is in contact with the top wall of the clamping hole. The lower surface of the supporting piece is in contact with the upper surface of the shaft seat. When the clamping plate is rotationally connected with the upper roller, the top surface of the U-shaped groove is in contact with the top surface of the right lifting block, the third rotating shaft is only used for rotationally connecting the clamping plate with the right lifting block, the third rotating shaft does not bear weight, and the strength requirement of the third rotating shaft is low.

Description

Technical Field

[0001] This utility model relates to the field of rolling equipment technology, and in particular to a durable three-roll plate rolling machine. Background Technology

[0002] A plate rolling machine is a device that bends sheet metal into cylinders. Taking a common three-roll plate rolling machine as an example, the upper roller moves vertically up and down symmetrically in the center of the two lower rollers. The metal sheet is clamped between the upper and lower rollers. With the help of the downward pressure of the upper roller and the rotation of the lower roller, the metal sheet undergoes multiple continuous bending processes, resulting in permanent plastic deformation and being rolled into the desired cylinder.

[0003] The left end of the upper roller is rotatably connected to the left support seat, and the right end of the upper roller is rotatably connected to the right support seat through the tipping mechanism. Before forming, the upper roller is rotatably connected to the tipping mechanism. After forming, the upper roller is disconnected from the tipping mechanism, and the cylinder is removed from the right end of the upper roller.

[0004] Authorization announcement number CN213002331U discloses a material discharge protection device for a plate rolling machine, including a frame, an upper roller, a lower roller, and a drive motor. There are two lower rollers located below the upper roller. The drive motor drives the lower rollers to rotate. The left ends of the upper roller and the lower roller are fixed to the frame by a left fixing plate, and the right end of the lower roller is fixed to the frame by a right fixing plate. The right end of the upper roller is fixed to the frame by a sliding support plate. The sliding support plate is slidably connected to the frame. The sliding support plate includes a sliding part and a downward tilting part. The sliding part and the downward tilting part are hinged and fixed. As can be seen from the attached drawings, the sliding part and the downward tilting part are fixedly connected by a hinge pin.

[0005] When the sheet metal is rolled, the sliding part is rotatably connected to the upper roller. The sheet metal reacts against the upper roller and ultimately transmits the force through the sliding part to the hinge pin. The hinge pin bears a large shear force. When the cylinder is unloaded, the sliding part disengages from the upper roller, and the hinge pin rotates relative to the sliding part. The hinge pin must be able to bear weight and rotate, requiring high strength. Summary of the Invention

[0006] In view of this, and to address the above-mentioned shortcomings, it is necessary to propose a durable three-roll plate rolling machine.

[0007] A durable, tilting three-roll plate rolling machine includes a base plate, a left support plate, a right support plate, a left lifting block, a right lifting block, an upper roller, a lower roller, and a tilting mechanism. The left and right support plates are mounted on the base plate. The left lifting block is mounted on the left support plate, and the right lifting block is mounted on the right support plate. The left end of the lower roller is rotatably connected to the left support plate, and the right end of the lower roller is rotatably connected to the right support plate. The left end of the upper roller is rotatably connected to the left lifting block. The tilting mechanism includes a second rotating shaft, a bearing seat, a clamping plate, a support member, and a third rotating shaft. The right end of the upper roller is coaxially and integrally connected to the second rotating shaft. A bearing seat is fitted onto the second rotating shaft, and the third rotating shaft is mounted on the right lifting block. The upper end of the clamping plate has a clamping hole, and the lower end of the clamping plate has a "U"-shaped groove. The two sides of the "U"-shaped groove are rotatably connected to the third rotating shaft. When the clamping plate rotates counterclockwise relative to the right lifting block, the bearing seat enters the clamping hole, and the top surface of the "U"-shaped groove contacts the top surface of the right lifting block. A support member can be movably inserted into the clamping hole. The upper surface of the support member contacts the top wall of the clamping hole, and the lower surface of the support member contacts the upper surface of the bearing seat. When the clamping plate rotates clockwise relative to the right lifting block, the clamping plate disengages from the bearing seat.

[0008] Preferably, the top surface of the right lifting block and the side surface of the right lifting block are machined into an inclined surface. The distance from the rotation shaft of the third rotating shaft to the top surface of the right lifting block is greater than the distance from the rotation shaft of the third rotating shaft to the side surface of the right lifting block. The distance from the rotation shaft of the third rotating shaft to the inclined surface of the right lifting block is less than the distance from the rotation shaft of the third rotating shaft to the side surface of the right lifting block. The distance from the rotation shaft of the third rotating shaft to the top surface of the right lifting block is equal to the distance from the rotation shaft of the third rotating shaft to the top surface of the "U" shaped groove.

[0009] Preferably, the tipping mechanism includes a tipping cylinder, the fixed end of which is connected to the right lifting block, and the telescopic end of which is connected to the clamping plate.

[0010] Preferably, the durable tilting three-roll plate rolling machine includes a balancing mechanism, the balancing mechanism includes an extension roller, one end of the extension roller is coaxially and integrally connected to the left end of the upper roller, and the other end of the extension roller is a cantilever end.

[0011] Preferably, the balancing mechanism includes a balancing frame and a lead screw, the balancing frame being fixed to the base plate, and the lead screw being threadedly connected to the balancing frame.

[0012] Preferably, the lower end face of the lead screw is an arc-shaped curved surface.

[0013] Preferably, the balancing mechanism includes a handwheel, which is located at the upper end of the lead screw.

[0014] Preferably, the balancing mechanism includes a guide block, the balancing frame includes a fixed plate and a guide rod, the guide block is threadedly connected to a lead screw, and the side of the guide block is provided with a guide groove for engaging the guide rod.

[0015] Preferably, a guide rod is provided on each side of the fixing plate, and a guide groove is provided on each side of the corresponding guide block.

[0016] Preferably, the guide groove is U-shaped.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] When the pallet is rotated and connected to the upper roller, the top surface of the "U"-shaped groove contacts the top surface of the right lifting block. The third rotating shaft is only used for the rotational connection between the pallet and the right lifting block. The third rotating shaft does not bear any weight and has low strength requirements. Attached Figure Description

[0019] Figure 1 This is a front view of the durable tilting three-roll plate bending machine.

[0020] Figure 2 This is a top view of the durable tilting three-roll plate bending machine.

[0021] Figure 3 This is a cross-sectional view of the durable tilting three-roll plate bending machine along the AA direction.

[0022] Figure 4 This is a cross-sectional view of the durable tilting three-roll plate bending machine along the CC direction.

[0023] Figure 5 Left view of a durable tilting three-roll plate rolling machine equipped with a tilting mechanism according to the first embodiment.

[0024] Figure 6 A cross-sectional view along the BB direction of a durable tilting three-roll plate rolling machine equipped with a tilting mechanism of the first embodiment.

[0025] Figure 7 Left view of a durable tilting three-roll plate rolling machine equipped with a tilting mechanism according to the second embodiment.

[0026] Figure 8 A cross-sectional view along the DD direction of a durable tilting three-roll plate rolling machine equipped with a tilting mechanism of the second embodiment.

[0027] Figure 9 A partial sectional view of a durable tilting three-roll plate bending machine equipped with pins.

[0028] In the figure: base plate 10, left support plate 20, right support plate 30, left lifting block 40, right lifting block 50, upper roller 60, lower roller 70, tilting mechanism 80, second rotating shaft 81, shaft seat 82, clamping plate 83, support member 84, third rotating shaft 85, shaft connector 90, bushing 91, first rotating shaft 92, pin 93, balancing mechanism 100, extension roller 101, balancing frame 102, fixing plate 1021, guide rod 1022, lead screw 103, handwheel 104, guide block 105, tensioning mechanism 110, pull rod 111, lock nut 112. Detailed Implementation

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 This utility model embodiment provides a durable tilting three-roll plate rolling machine, including a base plate 10, a left support plate 20, a right support plate 30, a left lifting block 40, a right lifting block 50, an upper roller 60, a lower roller 70, and a tilting mechanism 80. The left support plate 20 and the right support plate 30 are disposed on the base plate 10, the left lifting block 40 is disposed on the left support plate 20, and the right lifting block 50 is disposed on the right support plate 30. The left end of the lower roller 70 is rotatably connected to the left support plate 20, and the right end of the lower roller 70 is rotatably connected to the right support plate 30. The left end of the upper roller 60 is rotatably connected to the left lifting block 40. The tilting mechanism 80 includes a second rotating shaft 81, a shaft seat 82, a clamping plate 83, a support member 84, and a third rotating shaft 85. The upper roller... The right end of 60 is coaxially connected to the second rotating shaft 81. A shaft seat 82 is fitted on the second rotating shaft 81. The third rotating shaft 85 is located on the right lifting block 50. The upper end of the clamping plate 83 is provided with a clamping hole, and the lower end of the clamping plate 83 is provided with a "U"-shaped groove. The two sides of the "U"-shaped groove are rotatably connected to the third rotating shaft 85. The clamping plate 83 rotates counterclockwise relative to the right lifting block 50, and the shaft seat 82 enters the clamping hole. The top surface of the "U"-shaped groove contacts the top surface of the right lifting block 50. A support member 84 can be movably inserted into the clamping hole. The upper surface of the support member 84 contacts the top wall of the clamping hole, and the lower surface of the support member 84 contacts the upper surface of the shaft seat 82. The clamping plate 83 rotates clockwise relative to the right lifting block 50, and the clamping plate 83 disengages from the shaft seat 82.

[0031] Exemplarily, the upper roll 60 and the two lower rolls 70 are arranged in a triangular "pin" shape, all of which are no different from conventional designs, the transmission structures of the upper roll 60 and the lower rolls 70 adopt conventional designs, the left lifting block 40 and the right lifting block 50 move up and down synchronously, and the synchronous transmission structure adopts a conventional design.

[0032] Exemplarily, the support member 84 is rod-shaped, third pin holes are provided on both sides of the clamping plate 83, pin grooves are provided on the upper surface of the shaft seat 82, the support member 84 penetrates through the third pin holes and enters the pin grooves to prevent the upper roll 60 from swinging horizontally, and the longitudinal section of the pin groove is a semicircle.

[0033] In one embodiment, the durable tilting three-roll plate bending machine includes a tensioning mechanism 110, the tensioning mechanism 110 includes a pull rod 111 and a lock nut 112, the left support plate 20 and the right support plate 30 are arranged on the base plate 10, the left support plate 20 and the right support plate 30 are parallel to each other, both the left support plate 20 and the right support plate 30 can slide relative to the base plate 10, a through hole is respectively provided on each of the left support plate 20 and the right support plate 30, two ends of the pull rod 111 respectively pass through the through hole of the left support plate 20 and the through hole of the right support plate 30, the lock nut 112 is screwed into the end of the pull rod 111 on the outer side of the left support plate 20 or the right support plate 30, so as to relatively fix the left support plate 20 and the right support plate 30 and prevent them from moving away from each other, both ends of the lower roll 70 are rotatably connected with the left support plate 20 and the right support plate 30 through shaft connecting members 90, the left end of the upper roll 60 is rotatably connected with the left lifting block 40 through a shaft connecting member 90, the shaft connecting member 90 includes a first rotating shaft 92, the left end of the upper roll 60 and both ends of the lower roll 70 are coaxially and integrally connected with the first rotating shaft 92, a reducing transition is provided between the first rotating shaft 92 and the upper roll 60 or the lower roll 70, and a reducing transition is also provided between the second rotating shaft 81 and the upper roll 60.

[0034] The authorized publication number CN108607904B discloses a three-roll differential speed variable curvature numerical control plate bending machine, in which the frame and the base are welded and fixed, and the length of the upper roll 60 or the lower roll 70 is constant. In this embodiment, the lengths of the upper roll 60 and the lower roll 70 are variable, and the upper roll 60 and the lower roll 70 are easy to assemble and disassemble.

[0035] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0036] When the clamping plate 83 is rotatably connected with the upper roll 60, the top surface of the "U"-shaped groove is in contact with the top surface of the right lifting block 50, the third rotating shaft 85 is only used for the rotational connection between the clamping plate 83 and the right lifting block 50, the third rotating shaft 85 does not bear load, and the strength requirement for the third rotating shaft 85 is low.

[0037] See Figure 6Furthermore, the top surface of the right lifting block 50 and the side surface of the right lifting block 50 are machined into an inclined surface. The distance from the rotation shaft of the third rotating shaft 85 to the top surface of the right lifting block 50 is greater than the distance from the rotation shaft of the third rotating shaft 85 to the side surface of the right lifting block 50. The distance from the rotation shaft of the third rotating shaft 85 to the inclined surface of the right lifting block 50 is less than the distance from the rotation shaft of the third rotating shaft 85 to the side surface of the right lifting block 50. The distance from the rotation shaft of the third rotating shaft 85 to the top surface of the right lifting block 50 is equal to the distance from the rotation shaft of the third rotating shaft 85 to the top surface of the "U" shaped groove.

[0038] In one embodiment, the bottom wall of the locking hole has a first bottom surface and a second bottom surface, which are not coplanar. The first bottom surface does not contact the lower surface of the bearing seat 82, while the second bottom surface does contact the lower surface of the bearing seat 82. The longitudinal section of the bearing seat 82 is rectangular, and the longitudinal section of the locking hole is also rectangular. The distance between the two sides of the locking hole is equal to the width of the bearing seat 82. The first and second bottom surfaces of the locking hole are stepped, and the interface between the first and second bottom surfaces is located on the centerline of the locking hole. The distance between the rotation axis of the third rotating shaft 85 and the edge of the first bottom surface is equal to the distance between the rotation axis of the third rotating shaft 85 and the lower surface of the bearing seat 82. The distance between the rotation axis of the third rotating shaft 85 and the second bottom surface is equal to the distance between the rotation axis of the third rotating shaft 85 and the lower surface of the bearing seat 82. A single counterclockwise rotation of the locking plate 83 inserts the support member 84, causing the upper roller 60 to rotatably connect with the locking plate 83. A single clockwise rotation of the locking plate 83 removes the support member 84, disengaging the upper roller 60 from the locking plate 83. The structure is relatively simplified. The design of the first and second bottom surfaces of the bottom wall of the card hole, with the right end of the upper roller 60 tilted downwards towards the lower roller 70, prevents the card plate 83 from being inserted into the upper roller 60, thus allowing the parallelism of the upper roller 60 and the lower roller 70 to be checked.

[0039] See Figure 8 Furthermore, the tipping mechanism 80 includes a tipping cylinder, the fixed end of which is connected to the right lifting block 50, and the telescopic end of which is connected to the clamping plate 83.

[0040] In one embodiment, see Figure 3 , Figure 9 The shaft connector 90 includes a bushing 91 and a pin 93. A copper bushing 91 is installed inside the left lifting block 40, left support plate 20, and right support plate 30. A first rotating shaft 92 is nested into the bushing 91. The left lifting block 40, left support plate 20, or right support plate 30 has a first pin hole, and the bushing 91 has a second pin hole. The pin 93 passes through the first pin hole and the second pin hole in sequence to fix the bushing 91 relative to the left lifting block 40, left support plate 20, or right support plate 30, thus protecting the left lifting block 40, left support plate 20, or right support plate 30 from wear. The first rotating shaft 92 has a large contact area with the bushing 91, resulting in lower pressure on the bushing 91, making it suitable for heavy-duty plate rolling machines.

[0041] In one embodiment, see Figure 7 , Figure 8 The right lifting block 50 is provided with a straight roller groove, and the third rotating shaft 85 can roll along the roller groove. Under the action of the tilting cylinder, the clamping plate 83 first rotates relative to the right lifting block 50, and then moves horizontally and linearly along the right lifting block 50. The shape of the clamping hole matches the shape of the shaft seat 82, and the clamping plate 83 and the shaft seat 82 are seamlessly connected, which can be achieved with only one cylinder. The top wall of the clamping hole is also provided with a pin groove. The support member 84 passes through the third pin hole and enters the pin groove combination with a longitudinal section of a complete circle formed by the pin groove of the top wall of the clamping hole and the pin groove of the upper surface of the shaft seat 82, so as to prevent the clamping plate 83 from horizontally disengaging from the shaft seat 82.

[0042] See Figure 1 , Figure 4 Furthermore, the durable tilting three-roll plate rolling machine includes a balancing mechanism 100, which includes an extension roller 101. One end of the extension roller 101 is coaxially and integrally connected to the left end of the upper roller 60, and the other end of the extension roller 101 is a cantilever end.

[0043] Rotate the lead screw 103, and the lead screw 103 moves downward in a straight line relative to the balance frame 102, and contacts the cantilever end of the extension roller 101.

[0044] See Figure 1 , Figure 4 Furthermore, the balancing mechanism 100 includes a balancing frame 102 and a lead screw 103. The balancing frame 102 is fixed on the base plate 10, and the lead screw 103 is threadedly connected to the balancing frame 102.

[0045] See Figure 1 , Figure 4 Furthermore, the lower end face of the lead screw 103 is an arc-shaped curved surface.

[0046] See Figure 1 , Figure 4 Furthermore, the balancing mechanism 100 includes a handwheel 104, which is located at the upper end of the lead screw 103.

[0047] See Figure 1 , Figure 4 Furthermore, the balancing mechanism 100 includes a guide block 105, and the balancing frame 102 includes a fixing plate 1021 and a guide rod 1022. The guide block 105 is threadedly connected to the lead screw 103, and the side of the guide block 105 is provided with a guide groove for engaging the guide rod 1022.

[0048] See Figure 1 , Figure 4 Furthermore, a guide rod 1022 is provided on each side of the fixing plate 1021, and a guide groove is provided on each side of the corresponding guide block 105.

[0049] See Figure 1 , Figure 4Furthermore, the guide groove is U-shaped.

[0050] In one embodiment, see Figure 1 , Figure 2 The upper roller 60 has a spiral texture on its ring wall to create axial thrust on the plate. The plate, upper roller 60 and lower roller 70 interact with each other. The upper roller 60 and lower roller 70 always stay close to the left support plate 20 or the right support plate 30 to prevent "roller slippage".

[0051] The modules or units in the device of this utility model embodiment can be merged, divided, or deleted according to actual needs.

[0052] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A durable tilting three-roll plate bending machine, characterized in that: The system includes a base plate, a left support plate, a right support plate, a left lifting block, a right lifting block, an upper roller, a lower roller, and a tipping mechanism. The left and right support plates are mounted on the base plate, the left lifting block is mounted on the left support plate, and the right lifting block is mounted on the right support plate. The left end of the lower roller is rotatably connected to the left support plate, and the right end of the lower roller is rotatably connected to the right support plate. The left end of the upper roller is rotatably connected to the left lifting block. The tipping mechanism includes a second rotating shaft, a bearing, a clamping plate, a support member, and a third rotating shaft. The right end of the upper roller is coaxially and integrally connected to the second rotating shaft, and a... The shaft seat has a third rotating shaft mounted on the right lifting block. The upper end of the clamping plate has a clamping hole, and the lower end of the clamping plate has a "U"-shaped groove. The two sides of the "U"-shaped groove are rotatably connected to the third rotating shaft. When the clamping plate rotates counterclockwise relative to the right lifting block, the shaft seat enters the clamping hole. The top surface of the "U"-shaped groove contacts the top surface of the right lifting block. A support member can be movably inserted into the clamping hole. The upper surface of the support member contacts the top wall of the clamping hole, and the lower surface of the support member contacts the upper surface of the shaft seat. When the clamping plate rotates clockwise relative to the right lifting block, the clamping plate disengages from the shaft seat.

2. The durable tilting three-roll plate rolling machine as described in claim 1, characterized in that: The top surface and the side surface of the right lifting block are machined into an inclined surface. The distance from the rotation shaft of the third rotating shaft to the top surface of the right lifting block is greater than the distance from the rotation shaft of the third rotating shaft to the side surface of the right lifting block. The distance from the rotation shaft of the third rotating shaft to the inclined surface of the right lifting block is less than the distance from the rotation shaft of the third rotating shaft to the side surface of the right lifting block. The distance from the rotation shaft of the third rotating shaft to the top surface of the right lifting block is equal to the distance from the rotation shaft of the third rotating shaft to the top surface of the "U" shaped groove.

3. The durable tilting three-roll plate rolling machine as described in claim 1, characterized in that: The tipping mechanism includes a tipping cylinder, the fixed end of which is connected to the right lifting block, and the telescopic end of which is connected to the clamping plate.

4. The durable tilting three-roll plate rolling machine as described in claim 1, characterized in that: The durable tilting three-roll plate rolling machine includes a balancing mechanism, which includes an extension roller. One end of the extension roller is coaxially and integrally connected to the left end of the upper roller, and the other end of the extension roller is a cantilever end.

5. The durable tilting three-roll plate rolling machine as described in claim 4, characterized in that: The balancing mechanism includes a balancing frame and a lead screw. The balancing frame is fixed on the base plate, and the lead screw is threadedly connected to the balancing frame.

6. The durable tilting three-roll plate rolling machine as described in claim 5, characterized in that: The lower end face of the lead screw is an arc-shaped curved surface.

7. The durable tilting three-roll plate rolling machine as described in claim 5, characterized in that: The balancing mechanism includes a handwheel, which is located at the upper end of the lead screw.

8. The durable tilting three-roll plate rolling machine as described in claim 5, characterized in that: The balancing mechanism includes a guide block, and the balancing frame includes a fixed plate and a guide rod. The guide block is threadedly connected to a lead screw, and the side of the guide block is provided with a guide groove for inserting the guide rod.

9. The durable tilting three-roll plate rolling machine as described in claim 8, characterized in that: A guide rod is provided on each side of the fixed plate, and a guide groove is provided on each side of the corresponding guide block.

10. The durable tilting three-roll plate bending machine as described in claim 8, characterized in that: The guide groove is U-shaped.

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