Device for twisting steel belt into spiral sheet

Abstract

A device for twisting a steel belt into a spiral sheet comprises a machine frame, a steel belt winding roller, a steel belt feeding motor, a steel belt feeding speed reducer, a driving chain wheel, a steel belt driving feeding machine frame, a driven shaft, a driven chain wheel, a driving roller coaxial with the driven chain wheel, a steel belt guide wheel, an upper cross beam, a manual pressing screw matched with the upper cross beam in a threaded mode and a pressing wheel used for positioning and guiding the steel belt. The device comprises a rack, a steel belt guide forming die, a twisting speed reducer, a workpiece positioning and clamping rotating head connected with an output shaft of the twisting speed reducer, a manual clamping steel belt screw rod which is in threaded connection with the workpiece positioning and clamping rotating head and is matched with the workpiece positioning and clamping rotating head to clamp a steel belt, and an electric appliance control box mounted on the rack. The device is high in automation degree, reliable in operation, low in labor intensity, high in production efficiency, good in spiral piece product forming quality, capable of protecting a conveying steel belt from being damaged and good in positioning and guiding performance. The device can be widely applied to the heat exchanger built-in spiral sheet forming process.

Description

Technical Field

[0001] The invention relates to a device for twisting a steel belt into a spiral sheet, which can be widely used in the forming process of the built-in spiral sheet of a heat exchanger. Background Art

[0002] In order to achieve efficient heat transfer, spiral blades are usually built into the heat exchanger to improve the heat transfer effect of the heat exchanger. The production of built-in spiral blades is generally done by hand using winding tools. During operation, if the force is insufficient, it will take many times to meet the requirements. Therefore, it is quite difficult to make a qualified spiral blade, and this method has low work efficiency, difficult to guarantee the winding quality, and is not suitable for mass production. Therefore, it is time-consuming and labor-intensive, with low production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a device for twisting steel belt into spiral sheets, which has high automation, reliable operation, low labor intensity, high production efficiency, good spiral sheet product forming quality, protection of conveyor steel belt from damage, and good positioning and guiding performance.

[0004] In order to achieve the above-mentioned purpose, the device for twisting a steel strip into a spiral sheet of the present invention comprises a frame, a steel strip winding roller installed on the left side of the frame for storing the steel strip, a steel strip feeding motor installed on the frame, a steel strip feeding reducer connected to the output shaft of the feeding motor, a driving sprocket installed on the output shaft of the steel strip feeding reducer, a steel strip driving feeding frame installed on the working table at the left end of the frame, a driven shaft installed on the steel strip driving feeding frame, a driven sprocket installed on the driven shaft and driven by the driving sprocket through a chain transmission, a driving roller installed on the driven shaft and coaxial with the driven sprocket and dragging the steel strip forward through the friction force with the steel strip, a steel strip guide wheel installed on the frame, and a steel strip guide wheel installed on the frame. An upper crossbeam with a central threaded hole installed on the steel belt drive feed frame through an upper fastening screw, a manual clamping screw matched with the thread of the upper crossbeam, a pressure wheel connected to the end of the manual clamping screw and used for positioning and guiding the steel belt, a steel belt guide forming die installed in the middle of the frame and provided with a pick-up hole on the upper part for twisting spiral sheets of the steel belt, a twisting reducer located on the right side of the steel belt guide forming die and installed on the work table at the right end of the frame, a workpiece positioning clamping rotating head connected to the output shaft of the twisting reducer, a manual clamping steel belt screw threadedly connected to the workpiece positioning clamping rotating head and matched with the workpiece positioning clamping rotating head to clamp the steel belt, and an electrical control box installed on the frame.

[0005] The invention discloses a device for twisting a steel belt into a spiral sheet. The pressure wheel is connected to the end of a manual tightening screw rod. The connection method is as follows: a pair of half-split plates constituting an integral body are installed in the groove of the manual tightening screw rod. The pressure wheel is fastened to the pair of half-split plates by a lower tightening screw.

[0006] The device for twisting steel strips into spiral sheets of the present invention comprises a steel strip guide forming die, which comprises a guide forming tube installed on the working table in the middle of the frame, a guide cover installed on the left end of the guide forming tube, and a V-groove guide head installed on the right end of the guide forming tube.

[0007] The device for twisting a steel belt into a spiral sheet of the present invention comprises a driving roller, on the metal surface of which the driving roller is provided with a rubber friction belt at the position directly contacting with the steel belt.

[0008] The device for twisting a steel belt into a spiral sheet of the present invention comprises a steel belt feeding motor, a steel belt feeding reducer, a driving sprocket, a steel belt driving feeding frame, a driven shaft, a driven sprocket, a driving roller, a steel belt guide wheel, an upper crossbeam, a manual pressing screw and a pressing wheel, which constitute a steel belt conveying driving mechanism.

[0009] The device for twisting a steel belt into a spiral sheet of the present invention comprises a twisting reducer, a workpiece positioning and clamping rotating head, and a manually clamping steel belt screw rod, which constitute a twisting spiral sheet mechanism.

[0010] The working principle of the device for twisting a steel strip into a spiral sheet of the present invention is as follows: the steel strip is unwound from the steel strip winding roller and enters the steel strip conveying driving mechanism, the steel strip feeding motor drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket to rotate through the chain transmission, the driven sprocket drives the driving roller coaxial with it to rotate, the driving roller drags the steel strip forward through the friction force with the steel strip, the manual clamping screw presses the pressing wheel downward to position and guide the steel strip, and under the cooperation of the guide wheel, the steel strip is introduced into the steel strip gap of the guide cover of the steel strip guiding forming die, and then enters the cavity of the steel strip guiding forming die, the steel strip is conveyed to the V-groove guide head, the V-groove guide head can limit the movement direction and position of the steel strip, and plays the role of automatic centering and positioning of the steel strip, and finally the steel strip enters the hole groove of the workpiece positioning clamping rotating head, the steel strip pushes to the bottom of the hole groove of the workpiece positioning clamping rotating head, and the manual clamping steel strip screw cooperates with the workpiece positioning clamping rotating head to clamp the steel strip. After the clamping is completed, turn on the switch on the electrical control box to start the twisting reducer. According to the action time of the time relay on the electrical control box, adjust the pitch of the spiral sheet. When the steel belt is twisted into a spiral sheet with the required pitch, the time relay in the electrical control box starts to work and stops the operation of the twisting reducer. After the spiral sheet is formed, use a cutting saw tool to cut off the steel belt spiral sheet at the steel belt between the left side of the steel belt guide forming die and the steel belt conveying drive mechanism, and take it out from the take-out hole of the steel belt guide forming die. In this way, the entire spiral sheet forming process is completed.

[0011] The invention discloses a device for twisting a steel belt into a spiral sheet. A manual pressing screw rod cooperates with the upper crossbeam thread. The manual pressing screw rod is rotated by hand, and a pressing wheel presses onto the steel belt, thereby playing a role in positioning and guiding the steel belt.

[0012] The device for twisting a steel strip into a spiral sheet of the present invention has a V-shaped groove guide head which can limit the moving direction and position of the steel strip, and plays a role in automatically centering, guiding and positioning the steel strip.

[0013] The device for twisting steel strips into spiral sheets adopts a steel strip feeding motor to convey the steel strip and a twisting reducer to twist the steel strips into spiral sheets. The device has high automation, reliable operation, low labor intensity, high production efficiency and good spiral sheet product forming quality.

[0014] The device for twisting a steel belt into a spiral sheet of the present invention comprises a driving roller, on the metal surface of which the driving roller is directly in contact with the steel belt, a rubber friction belt is installed, which can provide sufficient friction driving force for the steel belt and, because the rubber material does not damage the surface of the steel belt during the conveying process of the steel belt, the conveying steel belt is protected from damage.

[0015] The device for twisting a steel belt into a spiral sheet of the present invention adopts a pressure wheel and a guide wheel for positioning and guiding in the initial stroke during the entire conveying process of the steel belt; a guide cover of a steel belt guiding forming die and a V-groove guide head are used to guide and position the steel belt in the middle stroke; and a workpiece positioning clamping rotating head and a manually clamping steel belt screw are used for positioning in the final stroke. Therefore, the present invention has good positioning and guiding performance.

[0016] In summary, the device for twisting a steel belt into a spiral sheet of the present invention has a high degree of automation, reliable operation, low labor intensity, high production efficiency, good spiral sheet product forming quality, protects the conveyor steel belt from damage, and has good positioning and guiding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments thereof.

[0018] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0019] exist Figure 1The device for twisting a steel strip into a spiral sheet of the present invention comprises a frame 1, a steel strip winding roller 2 installed on the left side of the frame for storing a steel strip 22, a steel strip feeding motor 3 installed on the frame, a steel strip feeding reducer 4 connected to the output shaft of the feeding motor, a driving sprocket 5 installed on the output shaft of the steel strip feeding reducer, a steel strip driving feeding frame 6 installed on the working table at the left end of the frame, a driven shaft 7 installed on the steel strip driving feeding frame, a driven sprocket 8 installed on the driven shaft and driven by the driving sprocket through a chain transmission, a driving roller 9 installed on the driven shaft and coaxial with the driven sprocket and dragging the steel strip forward through the friction force with the steel strip, and a steel strip guide wheel 10 installed on the frame, which is tightened by a screw 1 An upper crossbeam 12 installed on the steel belt drive feed frame and having a central threaded hole, a manual clamping screw 13 threadedly matched with the upper crossbeam, a pressure wheel 14 connected to the end of the manual clamping screw and used for positioning and guiding the steel belt, a steel belt guide forming die 15 installed in the middle of the frame and having a take-out hole a on the upper part for twisting spiral sheets of the steel belt, a twisting reducer 16 located on the right side of the steel belt guide forming die and installed on the work table at the right end of the frame, a workpiece positioning clamping rotating head 17 connected to the output shaft of the twisting reducer, a manual clamping steel belt screw 18 threadedly connected to the workpiece positioning clamping rotating head and matched with the workpiece positioning clamping rotating head to clamp the steel belt, and an electrical control box 19 installed on the frame.

[0020] The device for twisting a steel belt into a spiral sheet of the present invention, the pressure wheel is connected to the end of a manual tightening screw, and the connection method is: a pair of half-split plates 20 constituting an integral body are installed in the groove of the manual tightening screw, and the pressure wheel is fastened to the pair of half-split plates by a lower tightening screw 21.

[0021] The device for twisting steel strips into spiral sheets of the present invention comprises a steel strip guiding and forming die 15, which comprises a guiding and forming tube 15-1 installed on the working table in the middle of the frame, a guiding cover 15-2 installed on the left end of the guiding and forming tube, and a V-groove guiding head 15-3 installed on the right end of the guiding and forming tube.

[0022] In the device for twisting a steel belt into a spiral sheet of the present invention, the driving roller 9 is provided with a rubber friction belt on its metal surface at the position directly contacting with the steel belt.

[0023] The device for twisting a steel belt into a spiral sheet of the present invention comprises a steel belt feeding motor 3, a steel belt feeding reducer 4, a driving sprocket 5, a steel belt driving feeding frame 6, a driven shaft 7, a driven sprocket 8, a driving roller 9, a steel belt guide wheel 10, an upper cross beam 12, a manual tightening screw 13, and a pressing wheel 14, which constitute a steel belt conveying driving mechanism.

[0024] The device for twisting a steel strip into a spiral sheet of the present invention comprises the twisting reducer 16, the workpiece positioning and clamping rotating head 17, and the manual clamping steel strip screw 18, which constitute a twisting spiral sheet mechanism.

[0025] In summary, the preferred embodiments of the present invention are described above. It should be pointed out that the present invention is not limited to the above-mentioned specific implementation modes, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art, without departing from the scope of the technical solution of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A device for twisting a steel belt into a spiral sheet, characterized in that: The machine comprises a frame, a steel belt reel installed on the left side of the frame for storing the steel belt, a steel belt feeding motor installed on the frame, a steel belt feeding reducer connected to the output shaft of the feeding motor, a driving sprocket installed on the output shaft of the steel belt feeding reducer, a steel belt driving feeding frame installed on the working table at the left end of the frame, a driven shaft installed on the steel belt driving feeding frame, a driven sprocket installed on the driven shaft and driven by the driving sprocket through chain transmission, a driving roller installed on the driven shaft and coaxial with the driven sprocket and dragging the steel belt forward through friction with the steel belt, a steel belt guide wheel installed on the frame, and a steel belt guide wheel installed on the steel belt through a fastening screw. An upper crossbeam with a central threaded hole on the driving feed frame, a manual clamping screw threadedly matched with the upper crossbeam, a pressure wheel connected to the end of the manual clamping screw and used for positioning and guiding the steel strip, a steel strip guiding forming die installed in the middle of the frame and provided with a pick-up hole on the upper part for twisting spiral sheets of the steel strip, a twisting reducer located on the right side of the steel strip guiding forming die and installed on the work table at the right end of the frame, a workpiece positioning and clamping rotating head connected to the output shaft of the twisting reducer, a manual clamping steel strip screw threadedly connected to the workpiece positioning and clamping rotating head and matched with the workpiece positioning and clamping rotating head to clamp the steel strip, and an electrical control box installed on the frame.

2. The device for twisting a steel strip into a spiral sheet according to claim 1, characterized in that: The pressing wheel is connected to the end of the manual pressing screw rod in the following way: a pair of half-split plates constituting an integral body are installed in the groove of the manual pressing screw rod, and the pressing wheel is fastened to the pair of half-split plates by a lower fastening screw.

3. The device for twisting a steel strip into a spiral sheet according to claim 1, characterized in that: The steel strip guide forming die comprises a guide forming tube installed on the working table in the middle of the frame, a guide cover installed on the left end of the guide forming tube, and a V-groove guide head installed on the right end of the guide forming tube.

4. The device for twisting a steel strip into a spiral sheet according to claim 1, characterized in that: The driving roller has a rubber friction belt on its metal surface at the position directly contacting with the steel belt.

5. The device for twisting a steel strip into a spiral sheet according to claim 1, characterized in that: The steel belt feeding motor, steel belt feeding reducer, driving sprocket, steel belt driving feeding frame, driven shaft, driven sprocket, driving roller, steel belt guide wheel, upper crossbeam, manual pressing screw and pressing wheel constitute a steel belt conveying driving mechanism.

6. The device for twisting a steel strip into a spiral sheet according to claim 1, characterized in that: The twisting reducer, the workpiece positioning and clamping rotating head, and the manual clamping steel belt screw constitute a twisting spiral sheet mechanism.

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