An electric heating tube rotary cutting machine

Abstract

The utility model relates to electric heating tube processing technical field discloses a kind of electric heating tube rotary cutting machine, including shaft core support, support shaft, tool bit assembly, tool bit driver and push tube component, support shaft is hollow circular tubular structure, support shaft is arranged in shaft core support, tool bit assembly includes cutting knife, at least two clamping blocks and at least three moving blocks, every moving block is provided with a cutting knife or a clamping block, and moving block can drive the synchronous movement of cutting knife or clamping block on it. By making tool bit and clamping block rotate around electric heating tube, support shaft supports electric heating tube, support shaft and electric heating tube keep stationary, solve the problem that cutting precision is low when conventional electric heating tube cutting device realizes cutting by relying on electric heating tube rotation, and the rotated electric heating tube cut off is easily thrown out.

Description

Technical Field

[0001] This utility model relates to the field of electric heating tube processing technology, and in particular to an electric heating tube rotary cutting machine. Background Technology

[0002] Because the heating element has a thin wall, it is easily deformed during cutting. Conventional rotary cutting equipment usually uses a cutting method that makes the heating element rotate at high speed along its axis and the cutter moves radially along the heating element. Although this can avoid deformation of the heating element, the cutting accuracy is not high, the cut is prone to burrs, and the part of the heating element that is cut off at high speed is easily thrown out. When the heating element is long, the end far from the cutting device will be thrown out due to eccentric rotation, which further affects the cutting accuracy.

[0003] Therefore, a new rotary cutting device is urgently needed to solve the above problems. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose a rotary cutting machine for electric heating tubes, which solves the problems of low cutting accuracy and the tendency for the cut electric heating tubes to be thrown out during high-speed rotation when the tubes are rotated.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An electric heating tube veneer cutting machine includes a core support, a support shaft, a cutter head assembly, a cutter head driver, and a tube pusher assembly. The support shaft is a hollow circular tube structure and passes through the core support. The cutter head assembly includes a cutter, at least two clamping blocks, and at least three moving blocks. Each moving block is provided with one cutter or one clamping block, and the moving block can drive the cutter or clamping block thereon to move synchronously. The moving blocks are located at one end near the axial direction of the support shaft, and a plurality of moving blocks are distributed circumferentially along the support shaft. The cutter head driver is used to drive the moving blocks to rotate around the axis of the support shaft. The cutter head driver is also used to drive the moving blocks to move radially along the support shaft. The radial movement of the moving blocks is used to drive the cutter and the moving blocks to move closer or further away from each other synchronously.

[0007] The push tube assembly is located at one end near the support shaft and away from the moving block. The push tube assembly is used to move the heating tube to be cut along the axial direction of the support shaft. The push tube assembly is also used to clamp the heating tube to be cut.

[0008] Preferably, the cutter head assembly further includes a rotating cylinder, a bearing, and a mounting base. The rotating cylinder is rotatably mounted on the support shaft via the bearing. The axis of the rotating cylinder coincides with the axis of the support shaft. One end of the moving block is connected to the rotating cylinder. A clearance hole is provided in the middle of the mounting base to allow air to pass through the heating tube to be cut. The moving block is mounted on the mounting base.

[0009] The cutter head driver includes a first motor, a synchronous belt, and a synchronous pulley. The synchronous pulley is sleeved on the outer periphery of the rotating cylinder. The synchronous belt drives the output of the first motor and the synchronous pulley. The first motor drives the synchronous belt and the synchronous pulley to rotate. The rotation of the synchronous pulley drives the rotating cylinder to rotate.

[0010] Preferably, the mounting base is provided with a plurality of mounting shafts, each mounting shaft corresponding to a movable block. The axial direction of the mounting shaft is arranged along the radial direction of the rotating cylinder. The movable block is sleeved on the mounting shaft and can move along the axial direction of the mounting shaft. An elastic element is provided between the mounting shaft and the movable block, the elastic element being used to support the movable block to move away from the support shaft radially.

[0011] The cutter head assembly also includes a pressure sleeve, which is sleeved on one end of the support shaft near the moving block. The pressure sleeve is coaxially arranged with the support shaft and can move axially along the support shaft. The outer periphery of the pressure sleeve is provided with an annular groove along its circumferential direction. The inner edge of the opening at the end of the pressure sleeve near the moving block is provided with an annular bevel along its circumferential direction. The inner diameter of the annular bevel at the end near the moving block is larger than that at the other end. The moving block is provided with a support surface that matches the annular bevel.

[0012] The cutter head driver also includes a first cylinder. The output part of the first cylinder is provided with a toggle block. The toggle block is provided with a frustum-shaped protrusion that matches the annular groove. The frustum-shaped protrusion is embedded in the annular groove. The first cylinder is used to drive the toggle block to move the pressure sleeve back and forth along the axial direction of the pressure sleeve. The axial movement of the pressure sleeve drives the moving block to move closer to the support shaft radially along the support shaft through the annular oblique surface and the support surface.

[0013] Preferably, it also includes a guide nozzle, which is installed at one end of the support shaft near the moving block. The guide nozzle has a through channel through which the heating element to be cut passes. The through channel is coaxial with the support shaft. The through channel is composed of a hollow circular tube segment and a frustum segment. One end of the hollow circular tube segment is connected to the small circular end of the frustum segment, and the large circular end of the frustum segment is connected to the inner wall of the support shaft. The hollow circular tube segment is located near the moving block, and the frustum segment is located near the support shaft.

[0014] Preferably, the system further includes a locking assembly, which includes a locking frame, a locking cylinder, a first clamping mold, and a second clamping mold. The locking cylinder is mounted on the locking frame. The first clamping mold is connected to the output of the locking cylinder, and the second clamping mold is connected to the locking frame. The first clamping mold and the second clamping mold are arranged opposite to each other. The locking cylinder is used to drive the first clamping mold to move closer to and away from the second clamping mold. The opposing surfaces of the first clamping mold and the second clamping mold are provided with a limit groove along the axis of the support shaft.

[0015] Preferably, the push tube assembly includes a first push block, a second push block, a first rack, a second rack, a first gear, a first bracket, and a second cylinder. The first push block and the second push block are arranged opposite each other and are located on both sides of the axis of the support shaft. The first rack is connected to the first push block, and the second rack is connected to the second push block. The first rack and the second rack are parallel and opposite to each other. The first gear is rotatably mounted on the first bracket and meshes with both the first rack and the second rack. The first bracket has a first elongated hole, the length direction of which is perpendicular to the axis of the support shaft. The output part of the second cylinder is connected to the first push block, and the driving direction of the second cylinder is perpendicular to the axis of the support shaft.

[0016] Preferably, the pusher assembly further includes a first roller, a second roller, a second motor, a second gear, and a third gear. The first roller is rotatably disposed on the first pusher block, and the second roller is rotatably disposed on the second pusher block. The first pusher block and the second pusher block clamp the heating tube to be cut through the first roller and the second roller. The second gear is connected to the first roller and is coaxially disposed with the first roller. The third gear is connected to the output of the second motor, and the second gear meshes with the third gear. The second motor is used to drive the third gear to rotate, and the rotation of the third gear drives the second gear and the first roller to rotate.

[0017] Preferably, there are two sets of the first roller, the second roller and the second gear. The clamping surface of the first roller is provided with an arc-shaped groove. The length direction of the arc-shaped groove is arranged along the circumference of the first roller. Both the first roller and the second roller are made of rubber.

[0018] Preferably, it further includes a discharge assembly, which is disposed on the side of the push tube assembly away from the cutter head assembly. The discharge assembly includes a plurality of discharge mechanisms, which are spaced apart along the axial direction of the support shaft.

[0019] The material discharge mechanism includes a tube seat, a lower support plate, a lower slide block, a top block, and a third cylinder. The top surface of the tube seat is provided with a groove, which runs through the axis of the support shaft. The groove is used to support the heating tube to be cut. One end of the lower support plate is connected to one end of the tube seat, and the other end of the lower support plate is inclined upward in a direction away from the tube seat. The lower support plate is located on one side of the axis of the support shaft and is used to support the heating tube.

[0020] The lower slider is disposed at one end of the lower support plate near the tube seat. The lower slider can slide along the length direction of the lower support plate. The lower slider is provided with a limiting protrusion. The limiting protrusion is higher than the lower support plate. The limiting protrusion is used to prevent the electric heating tube supported by the lower support plate from sliding down.

[0021] The third cylinder is located at the bottom of the tube seat and at one end near the lower support plate. The top block is connected to the output of the third cylinder and passes through the tube seat vertically. The top surface of the top block is provided with a supporting slope, and the lower end of the supporting slope is close to the groove. The third cylinder is used to drive the top block to rise and fall. When the top block rises, the supporting slope is higher than the top of the lower slide block. When the top block falls, the supporting slope is lower than the top of the lower slide block.

[0022] Preferably, the discharge mechanism further includes a baffle, an upper pressure plate, and an upper slider. The baffle is arranged vertically and is connected to the end of the tube seat away from the lower support plate. The upper pressure plate is connected to the baffle and can move vertically. The upper pressure plate and the lower support plate are arranged opposite each other, one above the other. The movement of the upper pressure plate is used to adjust the distance between the upper pressure plate and the lower support plate.

[0023] The upper slider is disposed on the upper pressure plate, and the upper slider can move along the length direction of the upper pressure plate.

[0024] The technical solution provided by this utility model can include the following beneficial effects:

[0025] 1. By rotating the cutter head and clamping block around the heating tube, and supporting the heating tube with the support shaft, the support shaft and the heating tube remain stationary, the problem of low cutting accuracy and easy ejection of the rotating heating tube when conventional heating tube cutting devices rely on the rotation of the heating tube for cutting is solved.

[0026] 2. The rotating cylinder is driven by the synchronous belt pulley transmission structure, which in turn drives the moving block to rotate around the heating tube to be cut. The structure is stable and improves the cutting accuracy of the heating tube.

[0027] 3. By using an annular bevel, the axial movement of the rotating cylinder is transformed into the radial movement of the moving block along the rotating cylinder, making the movement of the moving block more stable and ensuring that multiple moving blocks move synchronously and symmetrically, thereby improving the cutting accuracy of the heating tube.

[0028] 4. The guide nozzle is matched with the outer diameter of the heating tube to be cut in order to achieve radial limiting of heating tubes with different outer diameters and improve cutting accuracy.

[0029] 5. The locking assembly limits the cutting of the heating element, improving cutting accuracy and preventing the cut heating element from being thrown out. Attached Figure Description

[0030] Figure 1 This is an assembly diagram of one embodiment of the present invention.

[0031] Figure 2 This is an assembly diagram of one embodiment of the present invention.

[0032] Figure 3 This is an assembly diagram of one embodiment of the present invention.

[0033] Figure 4 This is a partial cross-sectional view of one embodiment of the present invention.

[0034] Figure 5 This is a three-dimensional structural diagram of the push tube assembly according to an embodiment of the present invention.

[0035] Figure 6 This is a three-dimensional structural diagram of the push tube assembly in another direction, representing one embodiment of the present invention.

[0036] Figure 7 This is a three-dimensional structural diagram of the material discharge mechanism according to an embodiment of the present invention.

[0037] Figure 8 This is a three-dimensional structural diagram of one embodiment of the present invention.

[0038] The components include: shaft support 1, support shaft 2, cutter head assembly 3, cutter 31, clamping block 32, moving block 33, support surface 331, rotating cylinder 34, bearing 35, mounting base 36, clearance hole 361, mounting shaft 362, pressure sleeve 37, annular groove 371, annular bevel surface 372, cutter head driver 4, first motor 41, synchronous belt 42, synchronous pulley 43, first cylinder 44, actuating block 441, frustum-shaped protrusion 4411, push tube assembly 5, first roller 501, arc groove 5011, second roller 502, second motor 503, second gear 504, third gear 505, first push block 51, and second push block 52. 53. First rack 54. Second rack 55. First gear 56. First bracket 57. Second cylinder 58. Heating tube to be cut 6. Guide nozzle 7. Through channel 71. Hollow round tube section 711. Frustum section 712. Locking assembly 8. Locking frame 81. Locking cylinder 82. First clamping mold 83. Second clamping mold 84. Limiting groove 85. Discharge assembly 9. Discharge mechanism 91. Tube seat 911. Groove 9111. Lower support plate 912. Lower slider 913. Limiting protrusion 9131. Top block 914. Supporting inclined surface 9141. Third cylinder 915. Baffle 916. Upper pressure plate 917. Upper slider 918. Limiting plate 92. Limiting flange 921. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the terms "longitudinal" and "lateral" are used interchangeably.

[0041] The orientations or positional relationships indicated by terms such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0042] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0045] An electric heating tube veneer cutting machine includes a core support 1, a support shaft 2, a cutter head assembly 3, a cutter head driver 4, and a tube pusher assembly 5. The support shaft 2 is a hollow circular tube structure and passes through the core support 1. The cutter head assembly 3 includes a cutter 31, at least two clamping blocks 32, and at least three moving blocks 33. Each moving block 33 is provided with one cutter 31 or one clamping block 32, and the moving block 33 can drive the cutter 31 or clamping block 32 on it to move synchronously. The moving block 33 is located at one end close to the axial direction of the support shaft 2, and a plurality of moving blocks 33 are distributed circumferentially at intervals along the support shaft 2. The cutter head driver 4 is used to drive the moving blocks 33 to rotate around the axis of the support shaft 2. The cutter head driver 4 is also used to drive the moving blocks 33 to move radially along the support shaft 2. The radial movement of the moving blocks 33 is used to drive the cutter 31 and the moving blocks 33 to move closer or further away from each other synchronously.

[0046] The push tube assembly 5 is disposed near the end of the support shaft 2 away from the moving block 33. The push tube assembly 5 is used to move the heating tube 6 to be cut along the axial direction of the support shaft 2. The push tube assembly 5 is also used to clamp the heating tube 6 to be cut.

[0047] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the push tube assembly 5 moves the heating tube 6 to be cut through the support shaft 2 along the axial direction of the support shaft 2 and extends out. The cutter head driver 4 drives the moving block 33 to move the cutter 31 and clamping block 32 on it, so that the cutter 31 and clamping block 32 rotate around the heating tube and gradually move closer to each other to achieve the cutting of the heating tube.

[0048] By rotating the cutting head and clamping block 32 around the heating tube, the support shaft 2 supports the heating tube, and the support shaft 2 and the heating tube remain stationary. This solves the problems of low cutting accuracy and easy ejection of the rotating heating tube when conventional heating tube cutting devices rely on the rotation of the heating tube for cutting.

[0049] Preferably, the cutter head assembly 3 further includes a rotating cylinder 34, a bearing 35, and a mounting base 36. The rotating cylinder 34 is rotatably sleeved on the support shaft 2 via the bearing 35. The axis of the rotating cylinder 34 coincides with the axis of the support shaft 2. One end of the moving block 33 is connected to the rotating cylinder 34. The mounting base 36 is provided with a clearance hole 361 in the middle. The clearance hole 361 is used to clear the heating tube 6 to be cut. The moving block 33 is mounted on the mounting base 36.

[0050] The cutter head driver 4 includes a first motor 41, a synchronous belt 42, and a synchronous pulley 43. The synchronous pulley 43 is sleeved on the outer periphery of the rotating cylinder 34. The synchronous belt 42 is connected to the output of the first motor 41 and the synchronous pulley 43. The first motor 41 is used to drive the synchronous belt 42 and the synchronous pulley 43 to rotate. The rotation of the synchronous pulley 43 is used to drive the rotating cylinder 34 to rotate.

[0051] The rotating cylinder 34 is driven to rotate by the synchronous belt pulley transmission structure, which in turn drives the moving block 33 to rotate around the heating tube to be cut. The structure is stable and the cutting accuracy of the heating tube is improved.

[0052] Preferably, the mounting base 36 is provided with a plurality of mounting shafts 362, each of which corresponds to a movable block 33. The axial direction of the mounting shaft 362 is arranged along the radial direction of the rotating cylinder 34. The movable block 33 is sleeved on the mounting shaft 362 and can move along the axial direction of the mounting shaft 362. An elastic element is provided between the mounting shaft 362 and the movable block 33. The elastic element is used to support the movable block 33 to move away from the support shaft 2 radially.

[0053] The cutter head assembly 3 also includes a pressure sleeve 37, which is sleeved on one end of the support shaft 2 near the moving block 33. The pressure sleeve 37 is coaxially arranged with the support shaft 2 and can move along the axial direction of the support shaft 2. The outer periphery of the pressure sleeve 37 is provided with an annular groove 371. The inner edge of the opening of the end of the pressure sleeve 37 near the moving block 33 is provided with an annular chamfered surface 372. The inner diameter of the annular chamfered surface 372 near the moving block 33 is larger than that at the other end. The moving block 33 is provided with a support surface 331 that matches the annular chamfered surface 372.

[0054] The cutter head driver 4 also includes a first cylinder 44. The output part of the first cylinder 44 is provided with a toggle block 441. The toggle block 441 is provided with a frustum-shaped protrusion 4411 that matches the annular groove 371. The frustum-shaped protrusion 4411 is embedded in the annular groove 371. The first cylinder 44 is used to drive the toggle block 441 to drive the pressure sleeve 37 to reciprocate along the axial direction of the pressure sleeve 37. The axial movement of the pressure sleeve 37 drives the moving block 33 to move closer to the support shaft 2 along the radial direction of the support shaft 2 through the annular oblique surface 372 and the support surface 331.

[0055] In a specific embodiment, after one end of the heating tube extends out of the support shaft 2, the first motor 41 drives the moving block 33 to keep rotating. Then, the first air hole drives the pressure sleeve 37 to move towards the moving block 33. When the annular oblique surface 372 of the pressure sleeve 37 abuts against the support surface 331 of the moving block 33, the elastic element (not shown in the drawing) is compressed, and the moving block 33 gradually moves closer to the heating tube. The cutter 31 and the clamping block 32 contact the heating tube to cut. When the pressure sleeve 37 moves to the maximum stroke, the cutting is completed. The first cylinder 44 drives the pressure sleeve 37 to reset to the end away from the moving block 33. The elastic element supports the moving block 33 to reset to the end away from the heating tube, so that the moving block 33 moves to the position of the maximum rotation radius, ready for the next cutting.

[0056] The axial movement of the rotating cylinder 34 is transformed into the radial movement of the moving block 33 along the rotating cylinder 34 by the annular oblique cut surface 372, which makes the movement of the moving block 33 more stable and can ensure that multiple moving blocks 33 move synchronously and symmetrically, thereby improving the cutting accuracy of the heating tube.

[0057] Preferably, the frustum-shaped protrusion 4411 is rotatably mounted on the actuating block 441.

[0058] The rotatable frustum-shaped protrusion 4411 reduces the friction between the frustum-shaped protrusion 4411 and the rotating pressure sleeve 37, thereby increasing the service life of both the frustum-shaped protrusion 4411 and the rotating pressure sleeve 37.

[0059] Preferably, it also includes a guide nozzle 7, which is installed at one end of the support shaft 2 near the moving block 33. The guide nozzle 7 has a through channel 71 through which the heating tube 6 to be cut passes. The through channel 71 is coaxial with the support shaft 2. The through channel 71 is composed of a hollow circular tube section 711 and a frustum section 712. One end of the hollow circular tube section 711 is connected to the small circular end of the frustum section 712, and the large circular end of the frustum section 712 is connected to the inner wall of the support shaft 2. The hollow circular tube section 711 is located near the moving block 33, and the frustum section 712 is located near the support shaft 2.

[0060] like Figure 4 As shown, in a specific embodiment, the guide nozzle 7 is provided with multiple sizes. The inner diameter of the hollow circular tube section 711 of the guide nozzle 7 of different sizes is different. The inner diameter of the hollow circular tube section 711 matches the outer diameter of the electric heating tube 6 to be cut, so as to achieve radial limiting of electric heating tubes with different outer diameters and improve cutting accuracy. The frustum section 712 of the guide nozzle 7 is used to guide the electric heating tube to pass through one end of the hollow circular tube section 711.

[0061] Preferably, it further includes a locking assembly 8, which includes a locking frame 81, a locking cylinder 82, a first clamping mold 83, and a second clamping mold 84. The locking cylinder 82 is mounted on the locking frame 81. The first clamping mold 83 is connected to the output part of the locking cylinder 82. The second clamping mold 84 is connected to the locking frame 81. The first clamping mold 83 and the second clamping mold 84 are arranged facing each other. The locking cylinder 82 is used to drive the first clamping mold 83 to move closer to and away from the second clamping mold 84. The opposing surfaces of the first clamping mold 83 and the second clamping mold 84 are provided with a limit groove 85 through the axis of the support shaft 2.

[0062] When the heating element 6 to be cut is being cut, the end away from the push tube assembly 5 passes through the limiting groove 85 of the locking assembly 8. The locking assembly 8 limits the cutting of the heating element, improves the cutting accuracy, and prevents the cut heating element from being thrown out.

[0063] Preferably, the push tube assembly 5 includes a first push block 51, a second push block 52, a first rack 53, a second rack 54, a first gear 55, a first bracket 56, and a second cylinder 57. The first push block 51 and the second push block 52 are arranged opposite each other and are located on both sides of the axis of the support shaft 2. The first rack 53 is connected to the first push block 51, and the second rack 54 is connected to the second push block 52. The first rack 53 and the second rack 54 are parallel and opposite to each other. The first gear 55 is rotatably mounted on the first bracket 56 and meshes with the first rack 53 and the second rack 54 respectively. The first bracket 56 is provided with a first elongated hole, the length direction of which is perpendicular to the axis of the support shaft 2. The output part of the second cylinder 57 is connected to the first push block 51, and the driving direction of the second cylinder 57 is perpendicular to the axis of the support shaft 2.

[0064] like Figure 5As shown, the first push block 51 is driven by the second cylinder 57, which in turn moves the first rack 53. The movement of the first rack 53 causes the first gear 55 to rotate. The rotation of the first gear 55 causes the second rack 54 and the second push block 52 to move in the opposite direction to the first push block 51, achieving symmetrical movement of the first push block 51 and the second push block 52 away from and towards each other, which facilitates the centering and clamping of the heating tube 6 to be cut. The first elongated hole of the first bracket 56 can adjust the position of the first gear 55 and the relative position of the first push block 51 and the second push block 52, so that the copper tube to be cut is coaxial with the support shaft 2 when clamped, thereby improving the cutting accuracy.

[0065] Preferably, the pusher assembly 5 further includes a first roller 501, a second roller 502, a second motor 503, a second gear 504, and a third gear 505. The first roller 501 is rotatably disposed on the first pusher block 51, and the second roller 502 is rotatably disposed on the second pusher block 52. The first pusher block 51 and the second pusher block 52 clamp the heating tube 6 to be cut through the first roller 501 and the second roller 502. The second gear 504 is connected to the first roller 501 and is coaxially disposed with the first roller 501. The third gear 505 is connected to the output of the second motor 503, and the second gear 504 meshes with the third gear 505. The second motor 503 is used to drive the third gear 505 to rotate, and the rotation of the third gear 505 drives the second gear 504 and the first roller 501 to rotate.

[0066] like Figure 6 As shown, when the first roller 501 and the second roller 502 clamp the heating tube 6 to be cut, the rotation of the second roller 502 drives the heating tube 6 to be cut to move along the axial direction of the support shaft 2, thereby realizing the transport of the heating tube.

[0067] Preferably, there are two sets of the first roller 501, the second roller 502 and the second gear 504. The clamping surface of the first roller 501 is provided with an arc-shaped groove 5011. The length direction of the arc-shaped groove 5011 is arranged along the circumference of the first roller 502. Both the first roller 501 and the second roller 502 are made of rubber.

[0068] By setting two sets of first rollers 501 and second rollers 502, and by using an arc-shaped groove 5011 on the first roller 501 that provides driving force to increase the contact area and using rubber material, the local stress on the clamped heating tube is reduced, avoiding deformation of the heating tube caused by clamping, while ensuring sufficient friction to achieve the delivery of the heating tube.

[0069] Preferably, it also includes a discharge assembly 9, which is disposed on the side of the push tube assembly 5 away from the cutter head assembly 3. The discharge assembly 9 includes a plurality of discharge mechanisms 91, which are spaced apart along the axial direction of the support shaft 2.

[0070] The material discharge mechanism 91 includes a tube seat 911, a lower support plate 912, a lower slider 913, a top block 914, and a third cylinder 915. The top surface of the tube seat 911 is provided with a groove 9111, which is provided through the axis of the support shaft 2. The groove 9111 is used to support the electric heating tube 6 to be cut. One end of the lower support plate 912 is connected to one end of the tube seat 911, and the other end of the lower support plate 912 is inclined upward in a direction away from the tube seat 911. The lower support plate 912 is located on one side of the axis of the support shaft 2 and is used to support the electric heating tube.

[0071] The sliding block 913 is disposed at one end of the lower support plate 912 near the tube seat 911. The sliding block 913 can slide along the length direction of the lower support plate 912. The sliding block 913 is provided with a limiting protrusion 9131. The limiting protrusion 9131 is higher than the lower support plate 912. The limiting protrusion 9131 is used to prevent the electric heating tube supported by the lower support plate 912 from sliding down.

[0072] The third cylinder 915 is disposed at the bottom of the tube seat 911, and the third cylinder 915 is located at one end near the lower support plate 912. The top block 914 is connected to the output part of the third cylinder 915. The top block 914 is vertically inserted into the tube seat 911. The top surface of the top block 914 is provided with a supporting inclined surface 9141. The lower end of the supporting inclined surface 9141 is close to the groove 9111. The third cylinder 915 is used to drive the top block 914 to rise and fall. When the top block 914 rises, the supporting inclined surface 9141 is higher than the top of the lower slider 913. When the top block 914 falls, the supporting inclined surface 9141 is lower than the top of the lower slider 913.

[0073] like Figure 7As shown, in a specific embodiment, several heating tubes are placed on the top surface of the lower support plate 912, allowing them to slide down the top surface of the lower support plate 912 to the lower slider 913. The heating tubes are blocked by the limiting protrusion 9131 of the lower slider 913 and will not fall into the groove 9111. The position of the lower slider 913 is adjusted manually according to the diameter of the heating tubes. The limiting protrusion 9131 moves to a position that matches the top block, so that when the third cylinder 915 drives the top block to move upward, the supporting inclined surface 9141 of the top block 914 can just lift up the heating tube at the lowest end that is blocked by the limiting protrusion 9131. After the heating tube is lifted above the limiting protrusion 9131, it slides down from the supporting inclined surface 9141 into the groove 9111, realizing the sequential discharge and conveying of the heating tubes.

[0074] Preferably, the discharge mechanism 91 further includes a baffle 916, an upper pressure plate 917, and an upper slider 918. The baffle 916 is arranged vertically and is connected to the end of the tube seat 911 away from the lower support plate 912. The upper pressure plate 917 is connected to the baffle 916 and can move vertically. The upper pressure plate 917 and the lower support plate 912 are arranged opposite each other, one above the other. The movement of the upper pressure plate 917 is used to adjust the distance between the upper pressure plate 917 and the lower support plate 912.

[0075] The upper slider 918 is disposed on the upper pressure plate 917, and the upper slider 918 can move along the length direction of the upper pressure plate 917.

[0076] The baffle 916, upper pressure plate 917, lower support plate 912, and tube seat 911 form a semi-enclosed surface with only one inlet, preventing the heating tube 6 to be cut from accidentally detaching during conveying or cutting. In a specific embodiment, one end of the upper pressure plate is installed on a vertically oriented strip hole on the baffle plate using bolts and nuts. By matching the diameter of the heating tube, the distance between the upper pressure plate 917 and the lower support plate 912 is manually adjusted to prevent the heating tube from accidentally slipping and accumulating, affecting the material discharge and conveying. By matching the diameter of the heating tube, the upper slider 918 is manually moved so that it can block the lowest heating tube from being lifted from above, preventing the top block 914 from simultaneously lifting or carrying multiple heating tubes, which would affect the material discharge and subsequent cutting.

[0077] Preferably, the discharge assembly 9 further includes a limiting plate 92, which is connected to the lower support plate 912 of the first discharge mechanism 91 near the push tube assembly 5. The limiting plate 92 is provided with a limiting flange 921, which is used to prevent the heating tube from extending beyond the end of the push tube assembly 5 near the shaft support 1.

[0078] The limiting flange 921 of the limiting plate 92 prevents the electric heating tube from exceeding the range of the push tube assembly 5 and colliding with the shaft support 1 during the material discharge and conveying process.

[0079] Other configurations and operations according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0080] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rotary cutting machine for electric heating tubes, characterized in that: The device includes a shaft support, a support shaft, a cutter head assembly, a cutter head driver, and a push tube assembly. The support shaft is a hollow circular tube structure and passes through the shaft support. The cutter head assembly includes a cutter, at least two clamping blocks, and at least three moving blocks. Each moving block is provided with one cutter or one clamping block, and the moving block can drive the cutter or clamping block thereon to move synchronously. The moving blocks are located at one end near the axial direction of the support shaft, and a plurality of moving blocks are distributed circumferentially at intervals along the support shaft. The cutter head driver is used to drive the moving blocks to rotate around the axis of the support shaft. The cutter head driver is also used to drive the moving blocks to move radially along the support shaft. The radial movement of the moving blocks is used to drive the cutter and the moving blocks to move closer or further away from each other synchronously. The push tube assembly is located at one end near the support shaft and away from the moving block. The push tube assembly is used to move the heating tube to be cut along the axial direction of the support shaft. The push tube assembly is also used to clamp the heating tube to be cut.

2. The electric heating tube veneer cutting machine according to claim 1, characterized in that: The cutter head assembly also includes a rotating cylinder, a bearing, and a mounting base. The rotating cylinder is rotatably mounted on the support shaft via the bearing. The axis of the rotating cylinder coincides with the axis of the support shaft. One end of the moving block is connected to the rotating cylinder. A clearance hole is provided in the middle of the mounting base to allow air to pass through the heating tube to be cut. The moving block is mounted on the mounting base. The cutter head driver includes a first motor, a synchronous belt, and a synchronous pulley. The synchronous pulley is sleeved on the outer periphery of the rotating cylinder. The synchronous belt drives the output of the first motor and the synchronous pulley. The first motor drives the synchronous belt and the synchronous pulley to rotate. The rotation of the synchronous pulley drives the rotating cylinder to rotate.

3. The electric heating tube veneer cutting machine according to claim 2, characterized in that: The mounting base is provided with a plurality of mounting shafts, each of which corresponds to a movable block. The axial direction of the mounting shaft is arranged along the radial direction of the rotating cylinder. The movable block is sleeved on the mounting shaft and can move along the axial direction of the mounting shaft. An elastic element is provided between the mounting shaft and the movable block. The elastic element is used to support the movable block to move away from the support shaft radially. The cutter head assembly also includes a pressure sleeve, which is sleeved on one end of the support shaft near the moving block. The pressure sleeve is coaxially arranged with the support shaft and can move axially along the support shaft. The outer periphery of the pressure sleeve is provided with an annular groove along its circumferential direction. The inner edge of the opening at the end of the pressure sleeve near the moving block is provided with an annular bevel along its circumferential direction. The inner diameter of the annular bevel at the end near the moving block is larger than that at the other end. The moving block is provided with a support surface that matches the annular bevel. The cutter head driver also includes a first cylinder. The output part of the first cylinder is provided with a toggle block. The toggle block is provided with a frustum-shaped protrusion that matches the annular groove. The frustum-shaped protrusion is embedded in the annular groove. The first cylinder is used to drive the toggle block to move the pressure sleeve back and forth along the axial direction of the pressure sleeve. The axial movement of the pressure sleeve drives the moving block to move closer to the support shaft radially along the support shaft through the annular oblique surface and the support surface.

4. The electric heating tube veneer cutting machine according to claim 1, characterized in that: It also includes a guide nozzle, which is installed on one end of the support shaft near the moving block. The guide nozzle has a through channel through which the heating element to be cut passes. The through channel is coaxial with the support shaft. The through channel is composed of a hollow circular tube section and a frustum section. One end of the hollow circular tube section is connected to the small circular end of the frustum section, and the large circular end of the frustum section is connected to the inner wall of the support shaft. The hollow circular tube section is located near the moving block, and the frustum section is located near the support shaft.

5. The electric heating tube veneer cutting machine according to claim 1, characterized in that: It also includes a locking assembly, which includes a locking frame, a locking cylinder, a first clamping mold, and a second clamping mold. The locking cylinder is mounted on the locking frame. The first clamping mold is connected to the output of the locking cylinder, and the second clamping mold is connected to the locking frame. The first clamping mold and the second clamping mold are arranged opposite to each other. The locking cylinder is used to drive the first clamping mold to move closer to and away from the second clamping mold. The opposing surfaces of the first clamping mold and the second clamping mold are provided with a limit groove along the axis of the support shaft.

6. The electric heating tube veneer cutting machine according to claim 1, characterized in that: The push tube assembly includes a first push block, a second push block, a first rack, a second rack, a first gear, a first bracket, and a second cylinder. The first push block and the second push block are arranged opposite each other and are located on both sides of the axis of the support shaft. The first rack is connected to the first push block, and the second rack is connected to the second push block. The first rack and the second rack are parallel and opposite to each other. The first gear is rotatably mounted on the first bracket and meshes with both the first rack and the second rack. The first bracket has a first elongated hole, the length of which is perpendicular to the axis of the support shaft. The output part of the second cylinder is connected to the first push block, and the driving direction of the second cylinder is perpendicular to the axis of the support shaft.

7. The electric heating tube veneer cutting machine according to claim 6, characterized in that: The pusher assembly further includes a first roller, a second roller, a second motor, a second gear, and a third gear. The first roller is rotatably mounted on the first pusher block, and the second roller is rotatably mounted on the second pusher block. The first pusher block and the second pusher block clamp the heating tube to be cut through the first roller and the second roller. The second gear is connected to the first roller and is coaxially mounted with the first roller. The third gear is connected to the output of the second motor, and the second gear meshes with the third gear. The second motor drives the third gear to rotate, and the rotation of the third gear drives the second gear and the first roller to rotate.

8. The electric heating tube veneer cutting machine according to claim 7, characterized in that: The first roller, the second roller, and the second gear are provided in two sets. The clamping surface of the first roller is provided with an arc-shaped groove. The length direction of the arc-shaped groove is arranged along the circumference of the first roller. Both the first roller and the second roller are made of rubber.

9. The electric heating tube veneer cutting machine according to claim 1, characterized in that: It also includes a discharge assembly, which is disposed on the side of the push tube assembly away from the cutter head assembly. The discharge assembly includes a plurality of discharge mechanisms, which are spaced apart along the axial direction of the support shaft. The material discharge mechanism includes a tube seat, a lower support plate, a lower slide block, a top block, and a third cylinder. The top surface of the tube seat is provided with a groove, which runs through the axis of the support shaft. The groove is used to support the heating tube to be cut. One end of the lower support plate is connected to one end of the tube seat, and the other end of the lower support plate is inclined upward in a direction away from the tube seat. The lower support plate is located on one side of the axis of the support shaft and is used to support the heating tube. The lower slider is disposed at one end of the lower support plate near the tube seat. The lower slider can slide along the length direction of the lower support plate. The lower slider is provided with a limiting protrusion. The limiting protrusion is higher than the lower support plate. The limiting protrusion is used to prevent the electric heating tube supported by the lower support plate from sliding down. The third cylinder is located at the bottom of the tube seat and at one end near the lower support plate. The top block is connected to the output of the third cylinder and passes through the tube seat vertically. The top surface of the top block is provided with a supporting slope, and the lower end of the supporting slope is close to the groove. The third cylinder is used to drive the top block to rise and fall. When the top block rises, the supporting slope is higher than the top of the lower slide block. When the top block falls, the supporting slope is lower than the top of the lower slide block.

10. A rotary cutting machine for electric heating tubes according to claim 9, characterized in that: The material discharge mechanism further includes a baffle, an upper pressure plate, and an upper slider. The baffle is arranged vertically and is connected to the end of the tube seat away from the lower support plate. The upper pressure plate is connected to the baffle and can move vertically. The upper pressure plate and the lower support plate are arranged opposite each other, one above the other. The movement of the upper pressure plate is used to adjust the distance between the upper pressure plate and the lower support plate. The upper slider is disposed on the upper pressure plate, and the upper slider can move along the length direction of the upper pressure plate.

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