Preprocessing device for bending blank plate into pipe body

Abstract

The utility model relates to a pre-processing device for bending a blank plate into a pipe body, which comprises a rack, a lower roller and an upper roller are rotationally arranged on the rack side by side along the height direction, the upper roller is connected with a lifting piece used for driving the upper roller to move along the height direction of the rack, and the upper roller comprises two upper rolling wheels with a certain distance. The axes of the two upper rolling wheels coincide with the axis of the upper roller. And the blank plate starts to be conveyed forwards, so that the blank plate is erected on the two erecting grooves, the upper rolling wheel presses the blank plate, the two ends of the blank plate start to be rolled up, and the blank plate can be rolled up to form a pipe body for pretreatment. Compared with the prior art, the structure has the advantages that blank plates with different lengths can be processed, especially for long blank plates, manual intervention and labor intensity can be reduced due to the high automation degree, and production efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe production technology, specifically to a pretreatment device for bending blanks into pipe bodies. Background Technology

[0002] In the prior art, pre-processing equipment for bending blanks into tubes plays an important role in the metal processing field, especially in the fabrication of pipe metal structures. This equipment uses specific processes and mechanical structures to roll up both ends of a flat blank, preparing it for subsequent tube rolling. However, existing pre-processing equipment for bending blanks into tubes includes a support and a hydraulic cylinder fixedly mounted on the support. The support has concave grooves, and the blank is placed on these grooves. An arc-shaped pressing block is fixed to the end of the piston rod of the hydraulic cylinder, pressing the blank at its central axis or off-axis. After pressing, both ends of the blank are rolled up, thus enabling subsequent tube rolling. However, existing pre-processing equipment for bending blanks into tubes is clearly unsuitable for longer blanks, as the concave grooves on the support are usually of fixed length and cannot accommodate longer blanks for pressing. Utility Model Content

[0003] The main purpose of this utility model is to provide a pre-processing device for bending blanks into tubes, so as to solve the problem that the concave grooves on the support of the existing pre-processing equipment for bending blanks into tubes are usually of fixed length and cannot be adapted to longer blanks for pressing.

[0004] To achieve the above objectives, this utility model provides a pre-processing device for bending blanks into tubes, including a frame, on which a lower roll and an upper roll are arranged side by side and rotated along the height direction. The upper roll is connected to a lifting member for driving it to move along the height direction of the frame. The upper roll includes two upper rollers with a certain distance between them, and the axes of the two upper rollers coincide with the axis of the upper roll.

[0005] The outer ring wall of the upper rolling mill has an arc-shaped cross-section;

[0006] The lower roll has two lower rolling rollers and abutment rollers. The two lower rolling rollers are spaced apart and located on both sides of the abutment roller. The axes of the lower rolling rollers and the abutment rollers are coincident with the axis of the lower roll.

[0007] The two lower rolling rollers have slats on their opposite sidewalls, and the cross-section of the slats is a quarter-circular arc groove.

[0008] Among them, the two upper rolling rollers correspond one-to-one with the two lower rolling rollers, and the arc-shaped structure can contact the erection groove.

[0009] Preferably, the side of the arc-shaped structure away from the other upper rolling roller has an annular protrusion that contacts the mounting groove.

[0010] Preferably, the cross-section of the outer ring wall end of the abutment wheel is fan-shaped.

[0011] Preferably, both ends of the upper and lower rolls are mounted on the frame via bearings;

[0012] The two bearing seats located on the upper roll move along the height direction of the frame via lifting components;

[0013] Two bearing seats located on the lower roll are fixedly mounted on the frame.

[0014] Preferably, both bearing seats on the upper roll have mounting grooves, and the mounting grooves are embedded in the lifting block;

[0015] The lifting component includes a drive shaft, with both ends of the drive shaft rotatably mounted on the frame, and one end connected to a motor. The motor base is fixedly connected to the frame, and two spur gears are fixedly mounted on the drive shaft, with a rack meshing on each spur gear.

[0016] The vertically arranged rack is slidably mounted on the frame;

[0017] One end of the rack is fixedly connected to the lifting block, and the two racks correspond one-to-one with the two bearing seats.

[0018] Preferably, the motor is connected to the drive shaft via a reducer.

[0019] Preferably, a coupling is fixedly fitted at one end of both the upper and lower rollers.

[0020] Preferably, the two upper rolling rollers have a certain distance between them, and the two lower rolling rollers have a certain distance between them.

[0021] The beneficial effects of the above scheme are:

[0022] The blank to be processed is inserted at one end between the upper and lower rollers. The top wall of the blank abuts against the two upper rollers, and the lower side wall abuts against the abutting roller and the two lower rollers respectively. Driving the upper and lower rollers to rotate, the blank begins to be conveyed forward. The blank then rests on two mounting slots, and the upper rollers apply a pressing action, causing both ends of the blank to begin to roll up. This completes the rolling of the blank into a tube for pre-processing. This new design has advantages over existing technologies: this structure can process blanks of different lengths, especially longer blanks; the high degree of automation reduces manual intervention and labor intensity, improving production efficiency and safety. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a front sectional view of the structure of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the upper rolling wheel of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the lower rolling wheel of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the abutment wheel of this utility model.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Rack;

[0030] 2. Upper roll; 21. Upper roller; 210. Arc-shaped structure; 211. Annular protrusion;

[0031] 3. Lower roll; 31. Lower roller; 32. Abutment roller; 310. Laying groove; 320. Fan-shaped edge;

[0032] 4. Lifting component; 41. Drive shaft; 42. Motor; 43. Spur gear; 44. Rack;

[0033] 5. Shaft seat; 51. Mounting slot; 52. Lifting block;

[0034] 6. Couplings;

[0035] 7. Speed ​​reducer;

[0036] 8. Embryo plate. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0038] like Figures 1-4 As shown, this embodiment provides a pre-processing device for bending a blank into a tube, including a frame 1. A lower roller 3 and an upper roller 2 are rotatably arranged side-by-side along the height direction on the frame 1. The upper roller 2 is connected to a lifting member 4 for moving it along the height direction of the frame 1. The upper roller 2 includes two upper rollers 21 with a certain distance between them, and the axes of the two upper rollers 21 coincide with the axis of the upper roller 2. The outer ring wall of the upper roller 21 has an arc-shaped cross-section 210. Figure 2As shown, the arc-shaped structure 210 has an annular protrusion 211 on the side away from the other upper rolling roller 21, and the annular protrusion 211 contacts the overlapping groove 310. The annular protrusion 211 can better enable one end of the blank plate 8 to be bent and rolled. It should be noted that the outer ring wall of the annular protrusion 211 matches the outer arc of the overlapping groove 310. The lower rolling roller 3 has two lower rolling rollers 31 and abutment rollers 32. The two lower rolling rollers 31 are spaced apart and are located on both sides of the abutment roller 32. The axes of the lower rolling rollers 31 and the abutment rollers 32 are both coincident with the axis of the lower rolling roller 3. Among them, as shown in the figure... Figure 4 As shown, the outer ring wall of the abutment wheel 32 has a fan-shaped edge 320 at its end. The main purpose of the abutment wheel 32 is to support the blank plate 8. Figure 1 , Figure 3 As shown, the two lower rolling rollers 31 each have a cross-section of a quarter-circumference groove 310 on their opposite sidewalls. The two upper rolling rollers 21 correspond one-to-one with the two lower rolling rollers 31, and the arc-shaped structure 210 can contact the cross-section of the groove 310.

[0039] The blank plate 8 to be processed is inserted between the upper roller 2 and the lower roller 3. The blank plate is a steel plate. The upper top wall of the blank plate 8 abuts against the two upper rollers 21, and the lower side wall of the blank plate 8 abuts against the abutting roller 32 and the two lower rollers 31 respectively. The upper roller 2 and the lower roller 3 are driven to rotate, and the blank plate 8 begins to be conveyed forward. In this way, the blank plate 8 is placed on the two mounting slots 310, and the upper rollers 21 have a pressing action on the blank plate 8, so that the two ends of the blank plate 8 begin to roll up. This completes the rolling of the blank plate 8 into a tube for pre-processing. This new technology has advantages over the prior art: this structure can process blank plates 8 of different lengths, especially for longer blank plates 8; the high degree of automation can reduce manual intervention and labor intensity, and improve production efficiency and safety.

[0040] like Figure 1As shown, both ends of the upper roll 2 and the lower roll 3 are mounted on the frame 1 via bearing seats 5. The two bearing seats 5 on the upper roll 2 move along the height direction of the frame 1 via lifting components 4. The two bearing seats 5 on the lower roll 3 are fixedly mounted on the frame 1. Each of the two bearing seats 5 on the upper roll 2 has a mounting groove 51 into which a lifting block 52 is embedded. The lifting component 4 includes a drive shaft 41, both ends of which are rotatably mounted on the frame 1, and one end is connected to a motor 42 via a reducer 7. The reducer 7 is existing technology and will not be described in detail. The base of the motor 42 is fixedly connected to the frame 1. Two spur gears 43 are fixedly mounted on the drive shaft 41, each spur gear 43 meshing with a rack 44. The vertically arranged racks 44 are slidably mounted on the frame 1. One end of the rack 44 is fixedly connected to the lifting block 52, and the two racks 44 correspond one-to-one with the two bearing seats 5. A coupling 6 is fixedly fitted onto one end of both the upper roll 2 and the lower roll 3. The coupling 6 connects to a drive device that drives the upper roll 2 and the lower roll 3 to rotate. The drive device is existing technology and will not be described in detail. The drive device only needs to be able to drive the upper roll 2 and the lower roll 3 to rotate.

[0041] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A pretreatment device for bending a blank into a tube, comprising a frame, wherein a lower roller and an upper roller are rotatably arranged side-by-side along the height direction on the frame, and the upper roller is connected to a lifting member for moving it along the height direction of the frame, characterized in that, The upper roller comprises two upper rolling wheels, and the axes of the two upper rolling wheels coincide with the axis of the upper roller; The outer ring wall of the upper rolling wheel is in an arc structure in cross section; The lower roller has two lower rolling wheels and an abutting wheel, and the two lower rolling wheels are located on both sides of the abutting wheel, and the axes of the lower rolling wheels and the abutting wheel coincide with the axis of the lower roller; The opposite side walls of the two lower rolling wheels are each provided with a setting groove, and the setting groove is in a circular quarter-arc groove in cross section; The two upper rolling wheels correspond to the two lower rolling wheels one by one, and the arc structure can be in contact with the setting groove.

2. The blast processing apparatus according to claim 1, wherein The arc structure has a ring-shaped protrusion on the side away from the other upper rolling wheel, and the ring-shaped protrusion is in contact with the setting groove.

3. The blast processing apparatus according to claim 1, wherein The outer ring wall end of the abutting wheel is in a fan-shaped edge in cross section.

4. The blast processing apparatus according to claim 2, wherein Both ends of the upper roller and the lower roller are arranged on the rack through shaft seats; The two shaft seats on the upper roller move along the height direction of the rack through the lifting piece; The two shaft seats on the lower roller are fixedly arranged on the rack.

5. The blast processing apparatus according to claim 4, wherein Both of the two shaft seats on the upper roller are provided with mounting grooves, and the mounting grooves are embedded with lifting blocks; The lifting piece comprises a transmission shaft, both ends of the transmission shaft are rotatably arranged on the rack, one end of the transmission shaft is connected with a motor, the base of the motor is fixedly connected with the rack, the transmission shaft is fixedly sleeved with two spur gears, and each spur gear is engaged with a rack; The vertically arranged rack is slidably arranged on the rack; One end of the rack is fixedly connected with the lifting block, and the two racks correspond to the two shaft seats one by one.

6. The pre-treatment device for bending the blastula plate into a tube body according to claim 5, wherein The motor is connected with the transmission shaft through a speed reducer.

7. The blast processing apparatus according to claim 1, wherein One end of the upper roller and the lower roller is fixedly sleeved with a shaft coupling.

8. The blast processing apparatus according to claim 1, wherein The two upper rolling wheels have a certain spacing, and the two lower rolling wheels have a certain spacing.

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