CN213495799U

CN213495799U - Three-roller plate bending machine

Info

Publication number: CN213495799U
Application number: CN202022392161.3U
Authority: CN
Inventors: 展洲; 李会超
Original assignee: Shijiazhuang Ruiheng Metallurgical Valve Equipment Manufacturing Co ltd
Current assignee: Shijiazhuang Ruiheng Metallurgical Valve Equipment Manufacturing Co ltd
Priority date: 2020-10-24
Filing date: 2020-10-24
Publication date: 2021-06-22
Anticipated expiration: 2030-10-24

Abstract

The application relates to a three-roller plate bending machine, which comprises a base, a first supporting plate, a second supporting plate, two driving rollers, a driving assembly and a driven roller, wherein a limiting plate for supporting the driven roller is fixedly arranged on the first supporting plate; the upper surface of the sliding block is fixedly provided with a screw rod, the upper surface of the limiting plate is provided with a threaded hole, and the screw rod rotates in the threaded hole to drive the sliding block to slide up and down along the sliding hole; a positioning groove is formed in the circumferential outer side wall of the screw, a fixed ring plate is rotationally connected in the positioning groove, and a scale plate is fixedly arranged on the circumferential outer side wall of the fixed ring plate; the one end that the driven voller deviates from the limiting plate can be dismantled and is connected with the fixed subassembly that is used for supporting the driven voller, and fixed subassembly bottom has set firmly the pneumatic cylinder. This application has reached and has effectively improved driven voller both ends lift altitude uniformity, and then has improved the effect of the valve body quality of curling shaping out.

Description

Three-roller plate bending machine

Technical Field

The application relates to the field of plate processing equipment, in particular to a three-roller plate bending machine.

Background

At present, a plate bending machine is an important tool in valve manufacturing, is a device for bending and forming a plate by using a roller, can form valve bodies in different shapes such as a cylindrical part, a conical part and the like, and is very important processing equipment.

The existing three-roller plate bending machine comprises a base, two supporting plates fixedly arranged on the upper surface of the base, two driving rollers rotatably connected between the two supporting plates, a driven roller positioned above the two driving rollers, a driving mechanism for driving the driving rollers to rotate, and a lifting mechanism for controlling the lifting of the driven roller, wherein the driven roller is rotatably connected with a central shaft thereof; before the plate bending machine is used, the height of the driven roller is firstly adjusted according to the thickness of a plate, the plate is conveyed to a gap between the two driving rollers and the driven roller above the driving rollers by the feeding mechanism, the driving rollers are driven by the driving mechanism to do reciprocating circular motion, and the plate is driven to reciprocate between the gaps when the driving rollers rotate, so that the plate is bent or rolled and formed.

With respect to the related art among the above, the inventors consider that there is a defect that the sheet material forming effect is not good.

SUMMERY OF THE UTILITY MODEL

In order to improve because of the driven roller both ends go up and down highly nonconformity and lead to the not good defect of panel shaping effect, this application provides a three-roller plate bending machine.

The application provides a three-roller plate bending machine adopts following technical scheme:

a three-roller plate bending machine comprises a base, a first supporting plate, a second supporting plate, two driving rollers, a driving assembly and a driven roller, wherein the first supporting plate and the second supporting plate are fixedly arranged on the base; the upper surface of the sliding block is rotatably connected with a screw, the upper surface of the limiting plate is provided with a threaded hole matched with the screw thread, and the screw rotates in the threaded hole to drive the sliding block to slide up and down along the sliding hole; a positioning groove is formed in the circumferential outer side wall of the screw rod and is close to the top end, a fixed ring plate is connected in the positioning groove in a rotating mode, and a scale plate is fixedly arranged on the circumferential outer side wall of the fixed ring plate; the one end that the driven voller deviates from the limiting plate can be dismantled and is connected with the fixed subassembly that is used for supporting the driven voller, and fixed subassembly bottom sets firmly the pneumatic cylinder that the fixed subassembly of control goes up and down.

By adopting the technical scheme, before the three-roller plate bending machine is used for pressing and bending the plate, firstly, the hydraulic cylinder is controlled to ascend and descend to a proper height according to the thickness of the plate, and the fixing component is synchronously driven to ascend and descend to a proper height, so that the fixed end of the driven roller and the fixing component is driven to ascend and descend to a proper height; secondly, according to the telescopic numerical value fed back by the hydraulic cylinder, rotating the screw rod to lift to a corresponding height, calibrating the lifting height of the screw rod through the scale plate, and driving the sliding block to lift in the sliding hole by the screw rod so as to lift one end, fixed with the sliding block, of the driven roller; finally, opening the driving assembly to enable the driving roller to start to do reciprocating circular motion and drive the plate to do reciprocating motion between the driving roller and the driven roller, and finally completing the bending forming of the plate; the locating slot can make the scale plate keep relatively stable when the screw rod rotates with the normal running fit of fixed ring board, and the scale plate can effectively feed back the lift height of screw rod, makes the both ends lift height ability of driven voller more accurate to effectively improve the levelness of driven voller during operation, reduced the inhomogeneous possibility that leads to the shaping effect low of sheet material atress, and then reduced because of the last fashioned valve body kneck appears the straight flange and lead to the not good possibility of valve body leakproofness.

Optionally, a limiting block is fixedly arranged at the top end of one side, deviating from the driven roller, of the first supporting plate, and a limiting hole for the scale plate to penetrate through is formed in the upper surface of the limiting block

Through adopting above-mentioned technical scheme, the scale plate penetrates spacing hole, has restricted the ascending displacement of scale plate circumferencial direction, makes the scale plate automatic and screw rod keep relative static, has saved the manpower on the one hand, and on the other hand has further improved the reading degree of accuracy of scale plate.

Optionally, dovetail blocks are fixedly arranged on two sides of the sliding block, which are opposite to the side walls of the sliding hole, and dovetail grooves for the dovetail blocks to slide are formed in two inner side walls of the sliding hole.

By adopting the technical scheme, when the three-roller plate bending machine works, the dovetail block is matched with the dovetail groove in an inserted mode to enable the sliding block to be more stably fixed relative to the limiting plate, so that the limiting plate can support the driven roller more stably, the driven roller is enabled to be stable in working, and the quality of a formed valve body of the three-roller plate bending machine is effectively improved.

Optionally, the inner bottom wall of the sliding hole is provided with a fixing hole, and the upper surface of the first supporting plate is provided with a fixing groove communicated with the fixing hole; the inner bottom wall of fixed slot has set firmly the telescopic link, the bottom fixed connection of the top of telescopic link and slider, and is equipped with the adjusting bolt who is used for fixed telescopic link length on the telescopic link.

By adopting the technical scheme, before the three-roller plate bending machine works, after the height of the driven roller is adjusted according to the thickness of the valve body, the adjusting bolt is screwed down, so that the telescopic rod is fixed at the corresponding height, the sliding block is effectively supported, namely, the fixed end of the driven roller and the sliding block is further effectively supported, the driven roller is kept stable during working, and the quality of the valve body formed by the three-roller plate bending machine is effectively improved.

Optionally, two positioning plates are fixedly arranged on the central shaft, the two positioning plates are respectively located at two ends of the driven roller, and the side wall of each positioning plate, which is opposite to the driven roller, is abutted against the side wall of the driven roller, which is opposite to the positioning plates.

Through adopting above-mentioned technical scheme, the effective restriction can be done to the home range of driven voller to the locating plate to make the driven voller can be more stable when rotating along with the drive roll, and then improve the quality of the valve body that the veneer reeling machine curled and formed.

Optionally, the fixing assembly comprises a fixing block, a baffle and a locking bolt arranged at the top end of the baffle, the dovetail block is further fixedly arranged on the fixing plate and the baffle, and the dovetail block is positioned on the side wall of the fixing plate and the side wall of the baffle, which are opposite to the driven roller; the dovetail groove is further formed in the side wall, opposite to the fixing plate, of the second supporting plate and used for inserting the dovetail block, the bottom end of the fixing block is fixedly connected with the output end of the hydraulic cylinder, and the hydraulic cylinder drives the fixing block and the baffle plate to slide along the length direction of the dovetail groove; the locking bolt runs through the baffle and with fixed block threaded connection, the baffle deviates from one side bottom of drive assembly and articulates the one side of keeping away from the second backup pad on the fixed block upper surface.

By adopting the technical scheme, when the locking bolt is screwed down, the fixed block and the baffle are driven to ascend and descend along the dovetail groove by the ascending and descending of the hydraulic cylinder, and the driven roller and one end fixed with the baffle are driven to ascend and descend synchronously by the ascending and descending of the fixed block and the baffle; the locking bolt can further fix the fixed block and the baffle plate, so that the baffle plate can more stably and effectively support the driven roller; meanwhile, the hinged arrangement of the bottom wall of the baffle and the fixed block provides convenience for taking out the valve body which is formed by bending.

Optionally, a rebound spring is fixedly arranged on one side of the baffle, which is far away from the driven roller, and one end of the rebound spring, which is far away from the baffle, is fixedly arranged on the upper surface of the base; when the locking bolt is in a tightened state, the rebound spring is kept in a stretched state.

By adopting the technical scheme, after the plate is formed by bending through the three-roller plate bending machine, the locking bolt is unscrewed to separate the locking bolt from the fixed block, the rebound spring contracts and drives the baffle plate to turn over towards one side back to the driven roller, and the turning over of the baffle plate provides convenience for taking down the valve body; and after the valve body is taken down, the baffle is turned over and reset, and the locking bolt is enabled to recover the screwing state, so that preparation is made for the bending forming of the next plate.

Optionally, the driving assembly includes a driven gear fixedly connected to one end of the driving roller close to the first supporting plate, a driving gear engaged with the two driven gears, and a driving motor fixed to a rotating shaft of the driving gear.

By adopting the technical scheme, the driving motor drives the driving gear to rotate, and the driving gear simultaneously drives the two driven gears to rotate so as to synchronously drive the two driving rollers to rotate; the driving gear and the driven gear are matched to effectively buffer the driving roller, so that the damage to the driving roller is reduced.

Optionally, the upper surface of the base is further fixedly provided with a plurality of support columns, and the support columns are located on one side of the first support plate, which is far away from the driving roller; a supporting table is fixedly arranged at the top end of the supporting column, the hydraulic cylinder is further arranged on the upper surface of the supporting table, a push rod is fixedly arranged at the output end of the hydraulic cylinder, push plates are fixedly arranged at two ends of one side, opposite to the limiting plate, of the push rod, an auxiliary blanking hole for the push plates to penetrate through is formed in one side, opposite to the supporting table, of the limiting plate, and the auxiliary blanking holes are located on two sides of the upper sliding hole; a plurality of support columns are fixedly arranged at the bottom end of the support table.

By adopting the technical scheme, after the side wall of the baffle, which is just opposite to the driven roller, is abutted against the side wall of the fixed block, which is far away from the second supporting plate, the hydraulic cylinder is driven to drive the push rod to move towards the direction close to the limiting plate, the push rod is driven to move to drive the push plate to penetrate through the auxiliary blanking hole to be abutted against one end, which is just opposite to the limiting plate, of the valve body, the thrust force for keeping the push plate away from the limiting plate is continuously; the support column can be used for effectively supporting the support table.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the scale plate on the screw rod can effectively improve the accuracy of consistent lifting of the two ends of the driven roller, and meanwhile, the arrangement of the fixed ring plate and the positioning groove enables the scale plate to be kept immovable relative to the screw rod, so that the accuracy of consistent lifting of the two ends of the driven roller is further improved;

2. the detachable connection of the fixing component and the central shaft, the matching of the baffle plate and the rebound spring, and the arrangement of the push plate and the push rod provide convenience for the blanking of the three-roller plate bending machine;

3. the sliding fit of the dovetail block and the dovetail groove and the arrangement of the telescopic rod further improve the stability between the driven roller and the limiting plate, so that the forming effect of the valve body is further improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a partial schematic view showing a calibration assembly;

FIG. 3 is a partial sectional view showing the telescoping pole;

FIG. 4 is a partial schematic view showing a securing assembly;

fig. 5 is a partial schematic view showing the relationship between the push rod and the limiting plate.

Description of reference numerals: 1. a base; 11. a first support plate; 111. fixing grooves; 12. a second support plate; 13. a drive roll; 131. a bearing; 14. a driven roller; 141. a central shaft; 1411. positioning a plate; 142. a slider; 1421. a dovetail block; 15. a limiting plate; 151. a slide hole; 1511. a dovetail groove; 152. a threaded hole; 153. a screw; 1531. a hand wheel; 154. a fixing hole; 155. an auxiliary blanking hole; 156. a telescopic rod; 1561. a loop bar; 1562. a slide bar; 157. adjusting the bolt; 2. a drive assembly; 21. a driving gear; 22. a driven gear; 23. a drive motor; 3. a fixing assembly; 31. a fixed block; 32. a baffle plate; 321. a rebound spring; 322. a placement groove; 33. locking the bolt; 4. a hydraulic cylinder; 5. calibrating the component; 51. a stationary ring plate; 52. a scale plate; 53. a limiting block; 531. a limiting hole; 6. a push rod; 61. pushing the plate; 7. a support pillar; 71. and a support table.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a three-roller plate bending machine.

Referring to fig. 1 and 2, a three-roll plate bending machine includes a base 1, a first supporting plate 11 and a second supporting plate 12 vertically fixed on the upper surface of the base 1, two driving rolls 13 rotatably connected between the first supporting plate 11 and the second supporting plate 12, a central shaft 141 located above the driving rolls 13, a driven roll 14 sleeved on the circumferential outer side wall of the central shaft 141 and rotatably connected with the central shaft 141, a driving assembly 2 driving the driving rolls 13 to rotate, a hydraulic cylinder 4 controlling the driven roll 14 to lift, and a fixing assembly 3; the upper surface of the first supporting plate 11 is fixedly provided with a limiting plate 15 for supporting the driven roller 14, one side of the second supporting plate 12, which is far away from the driving roller 13, is fixedly provided with a fixing component 3 for supporting the rotation of the central shaft 141, the bottom end of the fixing component 3 is fixed with the output end of the hydraulic cylinder 4, and the fixing component 3 is detachably connected with the central shaft 141; two positioning plates 1411 are fixedly arranged on the circumferential side wall of the central shaft 141, and the positioning plates 1411 are respectively abutted with two end surfaces of the driven roller 14; the sliding block 142 is fixedly arranged at one end of the central shaft 141 close to the limiting plate 15, and a sliding hole 151 for the sliding block 142 to slide up and down is formed in the side wall of the limiting plate 15 opposite to the sliding block 142; the top of slider 142 rotates and is connected with screw rod 153, and the top wall of limiting plate 15 is seted up the screw hole 152 with screw rod 153 screw-thread adaptation, and the top of screw rod 153 stretches out the top of screw hole 152, and the top of screw rod 153 has set firmly the hand wheel 1531, and screw rod 153 circumference lateral wall has set firmly calibration subassembly 5.

Before the three-roller plate bending machine is used, firstly, the hydraulic cylinder 4 is controlled according to the thickness of the valve body to drive the fixing component 3 to ascend and descend to a proper height, the ascending and descending of the fixing component 3 drives one end of the central shaft 141, which is detachably connected with the fixing component 3, to ascend and descend, and the driven roller 14 is synchronously driven to ascend and descend; then, the hand wheel 1531 rotates the screw 153 to lift the fixed end of the driven roller 14 and the screw 153, and the lifting height of the screw 153 and the lifting height of the hydraulic cylinder 4 are kept consistent through the calibration assembly 5; finally, opening the driving component 2 to enable the driving roller 13 to rotate, and feeding materials to a gap between the driving roller 13 and the driven roller 14; the calibration assembly 5 can effectively improve the consistency of the heights of the two ends of the driven roller 14, thereby reducing the possibility of poor final sealing property of the valve body caused by the fact that the valve body is not bent at the interface, and further effectively improving the forming effect of the three-roller plate bending machine; the arrangement of the dovetail block 1421 and the dovetail groove 1511 and the arrangement of the positioning plate 1411 can further improve the stability of the driven roller 14 during operation, thereby effectively improving the forming effect of the three-roller plate bending machine; the fixing component 3 is detachably connected with the central shaft 141, and convenience is provided for taking down the molded valve body.

Referring to fig. 2 and 3, the calibration assembly 5 includes a fixed ring plate 51 rotatably connected to the circumferential outer side wall of the screw 153, a scale plate 52 fixedly arranged at an end of the fixed ring plate 51 away from the screw 153, and a limit block 53 fixedly arranged at a top end of the limit plate 15 at a side away from the driven roller 14; the circumferential outer side wall of the screw 153 is provided with a positioning groove, the positioning groove is positioned at the position of the circumferential side wall of the screw 153 close to the top end, and the fixed ring plate 51 is sleeved in the positioning groove and is rotationally connected with the screw 153; the upper surface of the limiting block 53 is provided with a limiting hole 531 for the scale plate 52 to penetrate; the screw 153 is displaced in the vertical direction by rotating the hand wheel 1531, and the lifting of the screw 153 drives the central shaft 141 to lift up and down from one end of the limiting plate 15 which is fixed relatively; the bottom end of the scale plate 52 is inserted into the limiting hole 531, when the screw 153 rotates, the fixed ring plate 51 and the scale plate 52 are kept static relative to the screw 153 and synchronously move in the vertical direction along with the screw 153, a worker can visually see the lifting height of the fixed end of the driven roller 14 and the limiting plate 15 through the scale plate 52, and can adjust the screw 153 through the numerical value fed back by the hydraulic cylinder 4, so that the consistency of the lifting heights of the two ends of the driven roller 14 is improved.

Referring to fig. 2 and 3, dovetail blocks 1421 are fixedly arranged on two side walls of the slider 142 opposite to the sliding hole 151, and dovetail grooves 1511 for the dovetail blocks 1421 to slide are arranged on two side walls opposite to the sliding hole 151; the bottom wall of the sliding hole 151 is provided with a fixing hole 154, the upper surface of the support plate is provided with a fixing groove 111 communicated with the fixing hole 154, the bottom wall of the fixing groove 111 is fixedly provided with an expansion link 156, the expansion link 156 comprises a loop bar 1561 and a sliding bar 1562 connected in the loop bar 1561 in a sliding manner, the bottom end of the loop bar 1561 is fixed with the bottom wall of the fixing groove 111, the top end of the loop bar 1561 is flush with the bottom wall of the sliding hole 151, and the top end of the sliding bar 1562 is fixed with the bottom end of the sliding block; an adjusting bolt 157 is arranged at the position, close to the top end, of the loop bar 1561, and the adjusting bolt 157 penetrates through the limiting plate 15 and is in threaded connection with the loop bar 1561; the telescopic rod 156 can be lifted along with the lifting of the sliding block 142, when the position of the sliding block 142 is kept unchanged, the adjusting bolt 157 is screwed down to keep the length of the telescopic rod 156 unchanged, at the moment, the telescopic rod 156 can effectively support the sliding block 142, and meanwhile, the dovetail block 1421 is connected in the dovetail groove 1511 in a sliding mode, so that the sliding block 142 and the limiting plate 15 are further kept relatively fixed, the stability of the driven roller 14 in working is improved, and the power is finally assisted for improving the bending quality of the three-roller plate bending machine.

Referring to fig. 1 and 4, the fixing assembly 3 includes a fixing block 31, a blocking plate 32, and a locking bolt 33; the fixing block 31 is connected to one side of the second support plate 12 away from the first support plate 11 in a sliding manner, and the dovetail block 1421 is further fixedly arranged on the side wall of the fixing block 31 facing the second support plate 12 and located at two ends of the fixing block 31 facing the side wall of the second support plate 12; the dovetail groove 1511 is further formed in the side wall of the second support plate 12 facing the fixed block 31, and the dovetail block 1421 slides up and down along the dovetail groove 1511; the bottom end of the fixing block 31 is fixed with the output end of the hydraulic cylinder 4, and one end of the upper surface of the fixing block 31, which is far away from the second supporting plate 12, is hinged with one end of the bottom end of the baffle plate 32, which is far away from the second supporting plate 12; a placing groove 322 for inserting the central shaft 141 of the driven roller 14 is formed in one side, facing the driven roller 14, of the baffle 32, a rebound spring 321 is fixedly arranged at one end, away from the second supporting plate 12, of the baffle 32, and one end, away from the baffle 32, of the rebound spring 321 is fixed to the upper surface of the base 1; the locking bolt 33 is inserted from the top end of the baffle 32 and is in threaded connection with the fixed block 31, and when the locking bolt 33 is screwed down, the rebound spring 321 is in a stretching state; before the three-roller plate bending machine is used, a locking bolt 33 is screwed, the fixed block 31 is driven to lift through the control hydraulic cylinder 4, the lifting of the fixed block 31 drives the baffle 32 to lift, and the fixed end of the driven roller 14 and the baffle 32 is synchronously driven to lift to a proper height; after the valve body is formed, the locking bolt 33 is unscrewed, and then the rebound spring 321 is quickly contracted and drives the baffle 32 to turn over, so that convenience is provided for taking out the valve body; after the valve body is taken down, the baffle 32 is turned over and reset, and the locking bolt 33 is screwed tightly, so that preparation is made for the bending forming of the next plate; the sliding fit between the dovetail groove 1511 and the dovetail block 1421 can effectively improve the stability of the fixing block 31 during lifting, and can enable the fixing plate to more stably support the baffle 32, and meanwhile, the tightening of the locking bolt 33 enables the fixing plate and the baffle 32 to be more stably fixed together, thereby effectively improving the stability of the driven roller 14 during operation.

Referring to fig. 4 and 5, the driving assembly 2 includes a driven gear 22 fixedly connected to one end of the two driving rollers 13 near the first supporting plate 11, a driving gear 21 engaged with the two driven gears 22, and a driving motor 23 fixed to a rotation shaft of the driving gear 21, and bearings 131 are fixedly disposed at both ends of the driving rollers 13; the driving motor 23 is turned on to drive the two driving rollers 13 to rotate at the same time, and the driving gear 21 is arranged to effectively buffer the rotation of the driving rollers 13, so that the forming effect of the plate bending machine is improved.

Referring to fig. 5, a supporting table 71 is fixedly arranged at the top end of the side wall of the first supporting plate 11, which is far away from the driving roller 13, a plurality of supporting columns 7 are fixedly arranged at the bottom end of the supporting table 71, the hydraulic cylinder 4 is also arranged on the upper surface of the supporting table 71, a push rod 6 is fixedly arranged at the output end of the hydraulic cylinder 4, push plates 61 are fixedly arranged at the two ends of the side wall, which is opposite to the limiting plate 15, of the push plate 61, the push plates 61 are made of rubber materials, and auxiliary discharging holes 155 for the push; after the valve body is formed by bending, the hydraulic cylinder 4 is driven to drive the push rod 6 to move towards the direction close to the limiting plate 15, the push plate 61 is synchronously driven to move towards the square direction close to the limiting plate 15, and the push plate 61 can pass through the auxiliary blanking hole 155 to apply thrust to the valve body to enable the valve body to be far away from the limiting plate 15; the cooperation of the hydraulic cylinder 4 and the push rod 6 provides convenience for the blanking of the three-roller plate bending machine, and meanwhile, the valve body can be effectively protected due to the arrangement of rubber materials.

The implementation principle of the three-roller plate bending machine in the embodiment of the application is as follows: before the three-roller plate bending machine is used, the locking bolt 33 is firstly screwed, the hydraulic cylinder 4 fixed with the fixed block 31 is controlled according to the thickness of the valve body to enable the fixed block 31 to lift, the lifting of the fixed block 31 drives the lifting of the baffle plate 32, and the driven roller 14 and one end fixed with the baffle plate 32 are synchronously driven to lift; secondly, the hand wheel 1531 is rotated to rotate the screw 153, the rotation of the screw 153 drives the slider 142 to ascend and descend, the end, fixed relatively to the limiting plate 15, of the driven roller 14 is synchronously driven to ascend and descend, the ascending and descending consistency of the two ends of the driven roller 14 is calibrated by comparing the reading of the scale plate 52 with the ascending and descending numerical value fed back by the hydraulic cylinder 4, and the adjusting bolt 157 is screwed after the calibration is finished, so that the length of the telescopic rod 156 is kept unchanged; then, the driving motor 23 is turned on to drive the two driving rollers 13 to rotate; finally, the plate material to be rolled and pressed is sent to a gap between the driving roller 13 and the driven roller 14; the calibration assembly 5 can effectively improve the uniformity of the lifting heights of the two ends of the driven roller 14, and the telescopic rod 156 can further effectively support the driven roller 14, so that the driven roller 14 is more stable in operation, and the quality of plate forming is further effectively improved.

After the sheet material is rolled and formed, firstly, the locking bolt 33 is loosened, and at the moment, the rebound spring 321 is quickly contracted and drives the baffle 32 to turn towards one end far away from the driven roller 14; secondly, controlling the hydraulic cylinder 4 fixed with the push rod 6 to drive the push rod 6 to move towards the direction close to the limiting plate 15, synchronously driving the push plate 61 to move towards the direction close to the limiting plate 15, and enabling the push plate 61 to pass through the auxiliary blanking hole 155 to apply force to the formed plate so as to enable the plate to move towards one end close to the baffle 32; finally, turning over the baffle 32 to one end close to the driven roller 14, and screwing the locking bolt 33 to ensure that the fixed block 31 and the baffle 32 are kept fixed; the rebound spring 321 contracts to drive the baffle 32 to turn over, so that the valve body can be taken out conveniently, and the hydraulic cylinder 4 and the push rod 6 are set to be the taking-out assisting force of the curled and molded valve body.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a three-roller plate bending machine, includes base (1), sets firmly first backup pad (11) and second backup pad (12), two drive rolls (13) on base (1), is used for driving drive assembly (2) of drive roll (13) to and driven voller (14), its characterized in that: a limiting plate (15) used for supporting the driven roller (14) is fixedly arranged on the upper surface of the first supporting plate (11), a central shaft (141) rotatably connected with the driven roller (14) is arranged in the driven roller (14), a sliding block (142) is fixedly arranged at one end, close to the first supporting plate (11), of the central shaft (141) of the driven roller (14), and a sliding hole (151) for the sliding block (142) to slide is formed in the side wall, opposite to the driven roller (14), of the limiting plate (15); the upper surface of the sliding block (142) is rotatably connected with a screw rod (153), the upper surface of the limiting plate (15) is provided with a threaded hole (152) matched with the screw rod (153) in a threaded manner, and the screw rod (153) rotates in the threaded hole (152) to drive the sliding block (142) to slide up and down along the sliding hole (151); a positioning groove is formed in the position, close to the top end, of the circumferential outer side wall of the screw (153), a fixed ring plate (51) is connected in the positioning groove in a rotating mode, and a scale plate (52) is fixedly arranged on the circumferential outer side wall of the fixed ring plate (51); one end of the driven roller (14) departing from the limiting plate (15) is detachably connected with a fixing component (3) used for supporting the driven roller (14), and the bottom end of the fixing component (3) is fixedly provided with a hydraulic cylinder (4) used for controlling the fixing component (3) to lift.

2. The three-roll plate bending machine according to claim 1, wherein: a limiting block (53) is fixedly arranged at the top end of one side, deviating from the driven roller (14), of the first supporting plate (11), and a limiting hole (531) for the scale plate (52) to penetrate through is formed in the upper surface of the limiting block (53).

3. The three-roll plate bending machine according to claim 1, wherein: dovetail blocks (1421) are fixedly arranged on two sides of the sliding block (142) opposite to the side walls of the sliding hole (151), and dovetail grooves (1511) for the dovetail blocks (1421) to slide are formed in two inner side walls of the sliding hole (151).

4. The three-roll plate bending machine according to claim 1, wherein: a fixing hole (154) is formed in the inner bottom wall of the sliding hole (151), and a fixing groove (111) communicated with the fixing hole (154) is formed in the upper surface of the first supporting plate (11); the inner bottom wall of the fixing groove (111) is fixedly provided with a telescopic rod (156), the top end of the telescopic rod (156) is fixedly connected with the bottom end of the sliding block (142), and the telescopic rod (156) is provided with an adjusting bolt (157) for fixing the length of the telescopic rod (156).

5. The three-roll plate bending machine according to claim 1, wherein: two positioning plates (1411) are fixedly arranged on the central shaft (141), the two positioning plates (1411) are respectively positioned at two ends of the driven roller (14), and the side wall of each positioning plate (1411) opposite to the driven roller (14) is abutted against the side wall of the driven roller (14) opposite to the positioning plates (1411).

6. The three-roll plate bending machine according to claim 1, wherein: the fixed assembly (3) comprises a fixed block (31), a baffle (32) and a locking bolt (33) arranged at the top end of the baffle (32), the dovetail block (1421) is further fixedly arranged on the fixed plate and the baffle (32), and the dovetail block (1421) is positioned on the side wall of the fixed plate and the baffle (32) which is just opposite to the driven roller (14); the dovetail groove (1511) is further formed in the side wall, opposite to the fixing plate, of the second supporting plate (12) and used for inserting the dovetail block (1421), the bottom end of the fixing block (31) is fixedly connected with the output end of the hydraulic cylinder (4), and the hydraulic cylinder (4) drives the fixing block (31) and the baffle (32) to slide along the length direction of the dovetail groove (1511); the locking bolt (33) penetrates through the baffle (32) and is in threaded connection with the fixing block (31), and the bottom end of one side, deviating from the driving assembly (2), of the baffle (32) is hinged to one side, far away from the second supporting plate (12), of the upper surface of the fixing block (31).

7. The three-roll plate bending machine according to claim 6, wherein: a rebound spring (321) is fixedly arranged on one side of the baffle (32) departing from the driven roller (14), and one end of the rebound spring (321) far away from the baffle (32) is fixedly arranged on the upper surface of the base (1); when the lock bolt (33) is in a tightened state, the rebound spring (321) is kept in a stretched state.

8. The three-roll plate bending machine according to claim 1, wherein: the driving assembly (2) comprises a driven gear (22) fixedly connected to one end, close to the first supporting plate (11), of the driving roller (13), a driving gear (21) meshed with the two driven gears (22), and a driving motor (23) fixed with a rotating shaft of the driving gear (21).

9. The three-roll plate bending machine according to claim 1, wherein: the upper surface of the base (1) is fixedly provided with a plurality of supporting columns (7), and the supporting columns (7) are positioned on one side of the first supporting plate (11) departing from the driving roller (13); a supporting table (71) is fixedly arranged at the top end of the supporting column (7), the hydraulic cylinder (4) is further arranged on the upper surface of the supporting table (71), a push rod (6) is fixedly arranged at the output end of the hydraulic cylinder (4), push plates (61) are fixedly arranged at two ends of one side, opposite to the limiting plate (15), of the push rod (6), one side, opposite to the supporting table (71), of the limiting plate (15) is provided with auxiliary discharging holes (155) for the push plates (61) to penetrate through, and the auxiliary discharging holes (155) are located on two sides of the upper sliding hole (151) of the limiting plate (15; the bottom end of the supporting platform (71) is fixedly provided with a plurality of supporting columns (7).