CN212072119U

CN212072119U - Rubber tube head cutting machine

Info

Publication number: CN212072119U
Application number: CN202020455015.8U
Authority: CN
Inventors: 周胜利; 薛重; 薛明清
Original assignee: Beijing Xinfu Weiye New Energy Technology Co ltd
Current assignee: Beijing Xinfu Weiye New Energy Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-12-04
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to a rubber tube crop machine, belong to cutting device technical field, its technical essential includes operation platform, operation platform's upper surface rotates and is connected with the axis of rotation, operation platform is provided with the transmission assembly who is used for driving the axis of rotation pivoted, the coaxial rotation of one end of axis of rotation has the mould, operation platform's upper surface is provided with the cutter that is used for cutting the rubber tube and is used for controlling the cutter along the drive assembly of rubber tube axial direction motion, drive assembly is including setting firmly the rotation seat in operation platform upper surface, carriage release lever and locating piece, locating piece and cutter are located the both sides of rotation seat respectively, the tip of carriage release lever runs through behind locating piece and rotation seat and extends to one side that is close to the mould, the locating piece is provided with the puller rod of; and one end of the movable rod close to the die is provided with a clamping mechanism for clamping the cutter. The utility model has the advantages of need not to relieve the relation of connection between rubber tube and the mould, improve crop efficiency.

Description

Rubber tube head cutting machine

Technical Field

The utility model relates to a cutting device technical field, in particular to rubber tube crop machine.

Background

After the rubber tube is vulcanized and formed, redundant rubber heads at the end part need to be cut off to ensure that the end part of the rubber tube is neat and meets the requirement of the product size.

The existing method mainly adopts a lathe cutting method. Although the shape of the rubber tube can be fixed by using the hard core in the lathe cutting method, the cutter is fixed, the rubber tube is driven to rotate by driving the hard core to rotate, in the rotating process of the rubber tube, the part, to be cut, of the rubber tube, which is close to one end of the cutter, is contacted with the cutter, so that one end of the rubber tube is cut off, when the end part of the other end of the rubber tube needs to be cut off, the direction of the rubber tube needs to be turned after the rubber tube is detached from the hard core, and the operation is repeated, so that the end parts at two. When large batch of rubber tubes are cut off, the rubber tubes need to be repeatedly disassembled, turned and installed, manpower is wasted, and working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a rubber tube crop machine, it has need not to remove the relation of connection between rubber tube and the mould, improves crop efficiency's advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a rubber tube head cutting machine comprises an operating platform arranged horizontally, wherein a rotating shaft is connected to the upper surface of the operating platform in a rotating mode, the axis of the rotating shaft is arranged horizontally, the operating platform is provided with a transmission assembly used for driving the rotating shaft to rotate, a mold is arranged at one end of the rotating shaft, the mold and the rotating shaft rotate coaxially, the rubber tube is sleeved outside the mold, a cutter used for cutting the rubber tube is arranged on the upper surface of the operating platform, a driving assembly used for controlling the cutter to move along the axial direction of the rubber tube is arranged on the upper surface of the operating platform, the driving assembly comprises a rotating seat fixedly arranged on the upper surface of the operating platform, a moving rod penetrating through the rotating seat and a positioning block, the positioning block and the cutter are respectively positioned on two sides of the rotating seat, the axis of the moving rod and the axis of the rotating shaft are arranged in parallel, and the end part of the moving rod sequentially penetrates through, the positioning block is provided with a jacking rod for limiting the position of the moving rod; and a clamping mechanism for clamping the cutter is arranged at one end of the movable rod close to the die.

By adopting the technical scheme, when a rubber tube needs to be cut, the rubber tube is sleeved outside the die, the movable rod is controlled to move to one side close to the die, when the position of the cutter and the position to be cut of the rubber tube are in the same plane, the movable rod is rotated and drives the cutter to synchronously rotate, so that the end part of the cutter is contacted with the rubber tube, the positioning block is moved along the axis direction of the movable rod, the positioning block is abutted against the rotating seat, the tightening rod is screwed, the axial movement and the rotation of the movable rod are limited under the action of the tightening rod, the contact state of the cutter and the rubber tube is further kept, the rotating shaft is driven to rotate by the transmission assembly, the die and the rubber tube are driven to synchronously rotate by the rotating shaft, and the end part of the cutter is contacted with the rubber tube, so that; when the other end of the rubber tube needs to be cut, the tightening rod is rotated reversely, the limit of the tightening rod on the moving rod is removed, the moving rod is rotated reversely, the moving rod drives the cutter to be away from the rubber tube, the moving rod continues to be moved along the axial direction of the moving rod, the operations are repeated, the other end of the rubber tube is cut, in the whole cutting operation, the connection relation between the rubber tube and the die does not need to be removed, the two ends of the rubber tube can be cut, and the head cutting efficiency is improved.

The utility model discloses further set up to: the rotating seats are two, the positioning blocks are arranged between the two rotating seats, first rotating holes are formed in the two rotating seats, the moving rod penetrates through the first rotating holes, and the moving rod is rotatably connected with the first rotating holes.

Through adopting above-mentioned technical scheme, through setting up two and rotating the seat, improve the carriage release lever stability in rotation.

The utility model discloses further set up to: the locating piece has been seted up the second and has been rotated the hole, second rotation hole center and first rotation hole center are in on a straight line, the carriage release lever rotates the hole rotation with the second and connects, locating piece outer wall set up threaded hole, the outer wall of tightening rod is provided with the external screw thread with threaded hole looks adaptation, tightening rod and threaded hole threaded connection, the tip butt of tightening rod in the outer wall of carriage release lever, the axis and the carriage release lever axis of tightening rod set up perpendicularly.

By adopting the technical scheme, the jacking rod is screwed, so that the end part of the jacking rod is abutted against the outer wall of the movable rod, and the position limitation of the movable rod is realized; meanwhile, the moving rod penetrates through the positioning block, sliding connection between the moving rod and the positioning block is achieved, the moving rod is convenient to move along the axial direction of the moving rod, and the moving rod is convenient to drive the cutter to move towards the position, close to the rubber tube, to be cut.

The utility model discloses further set up to: be provided with the stopper between the rotation seat that is close to mould one side and the locating piece, stopper and operation platform fixed connection, the distance between the up end of stopper to the operation platform upper surface is greater than the distance between locating piece to the operation platform upper surface.

Through adopting above-mentioned technical scheme, through the setting of stopper, when making the carriage release lever move to certain distance, inject the distance between rotation seat and the locating piece, the carriage release lever pivoted in-process of being convenient for drives the synchronous rotation of locating piece, makes the setting of rotating the seat not hinder the rotation of locating piece. When the rubber tube is cut for the first time and the rubber tube cannot be directly cut off by the cutter, the moving rod is convenient to rotate for the second time to drive the cutter to be aligned with the cutting position of the rubber tube, so that the secondary cutting is realized, and the cutter and the position to be cut of the rubber tube are convenient to be aligned for multiple times.

The utility model discloses further set up to: the limiting groove is formed in one side, facing the locating block, of the limiting block, and when the locating block abuts against the bottom wall of the limiting groove, the locating block and the rotating seat are arranged at intervals.

Through adopting above-mentioned technical scheme, increase the area of contact between stopper and the locating piece, improve the stability of locating piece in the spacing inslot portion.

The utility model discloses further set up to: the clamping mechanism comprises a connecting plate fixedly arranged on the moving rod, the side face of the connecting plate is perpendicular to the moving rod, one end, far away from the moving rod, of the connecting plate extends to one side close to the die, a clamping plate is arranged on one side of the connecting plate, the clamping plate and the connecting plate are arranged in parallel, one end, far away from the die, of the cutter is arranged between the clamping plate and the connecting plate, and a clamping assembly used for adjusting the distance between the clamping plate and the connecting plate is arranged between the clamping plate and the connecting plate.

By adopting the technical scheme, the cutter is arranged between the clamping plate and the connecting plate, and the clamping assembly drives the clamping plate and the connecting plate to clamp the cutter, so that the cutter is fixedly connected with the movable rod, and on one hand, the movable rod is convenient to drive the cutter to move along the axial direction of the movable rod; on the other hand, the position of the cutter between the clamping plate and the connecting plate is convenient to adjust, and the cutter is aligned to the position to be cut of the rubber tube.

The utility model discloses further set up to: the clamping assembly comprises at least two locking screws and a stop block fixedly arranged on the locking screws, the locking screws penetrate through the clamping plate and the connecting plate and are connected with locking nuts in a threaded mode, a locking rod between the clamping plate and the connecting plate, the inner wall of the clamping plate and the inner wall of the connecting plate enclose a mounting cavity for inserting the cutter, and one side of the cutter is limited in the interior of the mounting cavity and the other side of the cutter extends to the outside of the mounting cavity.

By adopting the technical scheme, the locking nut is reversely rotated, the position limitation between the clamping plate and the connecting plate is removed, the position limitation on the cutter is further removed, the cutter is convenient to adjust the positions of the clamping plate and the connecting plate, and the alignment of the cutter to the part to be cut of the rubber tube is realized.

The utility model discloses further set up to: and one side of the connecting plate, which is close to the die, is provided with an operating rod, and the axis of the operating rod is vertical to the axis of the rotating shaft.

Through adopting above-mentioned technical scheme, through the control lever, the control lever drives the connecting plate and removes to the one side of being close to or keeping away from the rubber tube, avoids operating personnel to contact with the cutter at the in-process of removing the connecting plate and be injured.

The utility model discloses further set up to: the rotating shaft is fixedly connected with a die through a three-jaw chuck, and the die is fixedly connected with the three-jaw chuck.

By adopting the technical scheme, the detachable connection between the rotating shaft and the die is realized by adjusting the three-jaw chuck; because the distance between the jaws of the three-jaw chuck is adjustable, the three-jaw chuck can clamp moulds with different specifications conveniently.

To sum up, the utility model discloses following beneficial effect has:

first, drive the cutter synchronous rotation through rotating the carriage release lever for the tip and the rubber tube contact of cutter move the locating piece along the axis direction of carriage release lever again, make locating piece and rotation seat butt, the axial motion and the rotation of restriction carriage release lever under the effect of tight pole in top, and then keep the contact state of cutter and rubber tube, rotate through drive assembly drive axis of rotation, the axis of rotation drives mould and rubber tube synchronous rotation, realizes the cutting to the rubber tube tip. Because the movable rod can move along the axial direction of the movable rod, the contact position between the cutter and the rubber tube can be adjusted, and the two ends of the rubber tube can be cut off without removing the connection relation between the rubber tube and the die in the whole cutting work, so that the cutting efficiency is improved.

Secondly, the distance between the rotating seat and the positioning block is limited under the action of the limiting block, the positioning block is driven to rotate synchronously in the rotating process of the moving rod, the rotating seat is arranged to not hinder the rotation of the positioning block, the moving rod is rotated for the second time to drive the cutter to be aligned to the cutting position of the rubber tube, the secondary cutting is realized, and the cutter and the position of the rubber tube to be cut are aligned for multiple times.

And thirdly, the clamping assembly drives the clamping plate and the connecting plate to clamp the cutter, so that the position of the cutter between the clamping plate and the connecting plate can be conveniently adjusted, and the cutter can align the to-be-cut part of the rubber tube.

And fourthly, through the arrangement of the three-jaw chuck, the detachable connection between the rotating shaft and the die is realized, and the clamping of the three-jaw chuck to dies with different specifications is convenient to realize because the distance between the jaws of the three-jaw chuck is adjustable.

Drawings

FIG. 1 is a schematic front structure view of a rubber tube end cutting machine;

FIG. 2 is a schematic side view of the rubber tube end cutting machine;

FIG. 3 is a schematic view of the connection relationship among the driving assembly, the limiting block, the connecting plate, the mounting plate and the operating rod according to the embodiment of the present invention;

fig. 4 is a partial exploded view of fig. 3.

In the figure, 1, an operation platform; 2. a rotating shaft; 3. a mounting seat; 4. a three-jaw chuck; 5. a mold; 6. a cutter; 7. a drive assembly; 71. a rotating seat; 711. a first rotation hole; 72. a travel bar; 73. positioning blocks; 731. a second rotation hole; 74. a tightening rod; 8. a limiting block; 81. a limiting groove; 9. a clamping mechanism; 91. a connecting plate; 911. a second via hole; 92. a clamping plate; 921. a first via hole; 93. a clamping assembly; 931. locking the screw rod; 932. a stopper; 933. locking the nut; 10. mounting a plate; 20. a joystick; 30. a surrounding baffle plate; 40. a base plate; 50. a rectangular cavity; 60. a door panel; 701. a motor; 702. a first pulley; 703. a second pulley; 704. a belt; 80. u type protection casing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a rubber tube crop machine, including the operation platform 1 of level setting, operation platform 1's upper surface rotates and is connected with axis of rotation 2, and the axis of rotation 2 is the level setting.

The two opposite sides of the upper surface of the operating platform 1 are respectively welded with the mounting seats 3, and the two mounting seats 3 are arranged oppositely. Two ends of the rotating shaft 2 respectively penetrate through the mounting seat 3 and are rotatably connected with the mounting seat 3.

Referring to fig. 1 and 2, a three-jaw chuck 4 is fixedly mounted at one end of a rotating shaft 2, a chuck body of the three-jaw chuck 4 is fixedly connected with the rotating shaft 2, jaws of the three-jaw chuck 4 enclose a clamping area, a cylindrical mold 5 is mounted inside the clamping area, the axis of the mold 5 and the axis of the rotating shaft 2 are in the same straight line, and the mold 5 and the rotating shaft 2 rotate coaxially. The end parts of the clamping jaws are abutted against the end parts of the dies 5, and the clamping of the dies 5 with different specifications can be realized by adjusting the distance between the clamping jaws of the three-jaw chuck 4. When in work, the rubber tube is sleeved outside the die 5.

Operation platform 1's lower surface welding has three baffle 30 that encloses, and three baffle 30 that encloses all is vertical setting, and the lower extreme welding of enclosing baffle 30 has bottom plate 40, and operation platform 1, three baffle 30 and bottom plate 40 enclose into having one side open-ended rectangle die cavity 50. The operating platform 1 is hinged with a door panel 60 at the opening of the rectangular cavity 50.

The operation platform 1 is provided with and is used for driving 2 pivoted drive assembly of axis of rotation, drive assembly includes fixed mounting in the inside motor 701 of rectangle cavity, the output of motor 701 runs through and extends to the outside of rectangle die cavity 50 behind the enclosure baffle 30 of one side, the key connection of the motor 701 output that is located the outside of rectangle die cavity 50 has first belt pulley 702, axis of rotation 2 key-type is connected with second belt pulley 703, second belt pulley 703 is located directly over first belt pulley 702, and first belt pulley 702 and second belt pulley 703 pass through the transmission of belt 704. The outer side wall of the enclosure 30 of the operation platform 1 is fixedly provided with a U-shaped protective cover 80, and the U-shaped protective cover 80 is covered outside the first belt pulley 702, the second belt pulley 703 and the belt 704.

With reference to fig. 2 and 3, the upper surface of the operating platform 1 is provided with a cutter 6 for cutting the rubber tube, and the end of the cutter 6 abuts against the outer wall of the rubber tube. The upper surface of the operating platform 1 is provided with a driving assembly 7 for controlling the cutter 6 to move along the axial direction of the rubber tube, and the driving assembly 7 comprises a rotating seat 71, a moving rod 72, a positioning block 73 and a tightening rod 74.

With reference to fig. 3 and 4, the number of the rotating seats 71 is two, the two rotating seats 71 are respectively welded to two sides of the upper surface of the operating platform 1, the rotating seats 71 and the mounting seat 3 are arranged on the same side of the operating platform 1, the positioning block 73 is arranged in a cylindrical shape, the positioning block 73 is arranged between the two rotating seats 71, the positioning block 73 is sleeved outside the moving rod 72, and the lower end surface of the positioning block 73 is arranged at an interval with the upper surface of the operating platform 1.

The centers of the two rotating seats 71 are respectively provided with a first rotating hole 711, the center of the positioning block 73 is provided with a second rotating hole 731, and the centers of the first rotating hole 711 and the second rotating hole 731 are positioned on the same straight line. The axis of the moving rod 72 is parallel to the axis of the rotary shaft 2, the moving rod 72 is inserted through the first rotary hole 711 and the second rotary hole 731 in this order and then extends toward the mold 5, and the axis of the moving rod 72 is parallel to the axis of the mold 5.

The outer wall of the positioning block 73 is provided with a threaded hole which is communicated with the second rotating hole 731. The outer wall of the tightening rod 74 is provided with an external thread matched with the threaded hole, the end part of the tightening rod 74 is inserted into the threaded hole and extends into the second rotating hole 731, the tightening rod 74 is in threaded connection with the threaded hole, the end part of the tightening rod 74 positioned in the second rotating hole 731 is abutted against the outer wall of the moving rod 72, and the axis of the tightening rod 74 is perpendicular to the axis of the moving rod 72; when the end of the tightening rod 74 abuts against the outer wall of the moving rod 72, the moving rod 72 is fixed in position inside the second rotating hole 731.

With reference to fig. 2 and 4, a limiting block 8 is arranged between the rotating seat 71 and the positioning block 73 on one side close to the mold 5, the limiting block 8 is fixedly connected with the upper surface of the operating platform 1, the distance from the upper end surface of the limiting block 8 to the upper surface of the operating platform 1 is greater than the distance from the lower end surface of the positioning block 73 to the upper surface of the operating platform 1, a limiting groove 81 is formed in one side of the limiting block 8 facing the positioning block 73, and when the outer wall of the positioning block 73 abuts against the bottom wall of the limiting groove 81, the positioning block 73 and the rotating seat 71 are arranged at intervals.

The moving bar 72 is provided at one end near the die 5 with a clamping mechanism 9 for clamping the cutter 6. The clamping mechanism 9 includes a connecting plate 91 and a clamping plate 92, and the connecting plate 91 and the clamping plate 92 are arranged in parallel.

The connecting plate 91 is rectangular, the moving rod 72 is perpendicular to the side surface of the connecting plate 91, and the connecting plate 91 is fixedly connected with the moving rod 72. The side of the web 91 remote from the travel bar 72 extends to the side adjacent the die 5. The clamping plate 92 and the connecting plate 91 are detachably connected by a clamping assembly 93 on the side close to the mold 5.

The clamping assembly 93 includes two locking screws 931, a stopper 932 fixedly disposed on the locking screws 931, and a locking nut 933.

The clamping plate 92 is provided with a first via hole 921 at the coincidence position of the clamping plate 92 and the connecting plate 91, the connecting plate 91 is provided with a second via hole 911 at the coincidence position of the connecting plate 91 and the clamping plate 92, the center of the first via hole 921 and the center of the second via hole 911 are located on a straight line, and one end, far away from the stop block 932, of the locking screw 931 penetrates through the first via hole 921 and the second via hole 911 and is in threaded connection with the locking nut 933. The locking rod between the clamping plate 92 and the connecting plate 91, the inner wall of the clamping plate 92 and the inner wall of the connecting plate 91 are surrounded to form a mounting cavity for inserting the cutting knife 6, one end, far away from the die 5, of the cutting knife 6 is limited in the mounting cavity, the other end of the cutting knife 6 extends to the outside of the mounting cavity, and the cutting knife 6 inside the mounting cavity is limited between two locking screw rods 931. The locking nut 933 is rotated reversely, the distance between the locking nut 933 and the stop 932 is adjusted, the distance between the clamping plate 92 and the connecting plate 91 is adjusted, and the distance of the extending end of the cutting knife 6 is conveniently adjusted. The position of the cutter 6 can be adjusted conveniently by adjusting the position of the locking screw 931 on the clamping plate 92 and the connecting plate 91.

One side of the connecting plate 91 close to the mold 5 is fixedly provided with a mounting plate 10, the cross section of the mounting plate 10 is perpendicular to the cross section of the connecting plate 91, the connecting plate 91 and the mounting plate 10 are arranged in an L shape, and the mounting plate 10 and the clamping plate 92 are respectively arranged on two sides of the connecting plate 91.

The side of the mounting plate 10 adjacent the mould 5 is tangential to the outer wall of the mould 5. An operating rod 20 is fixedly arranged on one side of the mounting plate 10 far away from the die 5, the operating rod 20 is vertically arranged with the mounting plate 10, and the axis of the operating rod 20 is vertically arranged with the axis of the rotating shaft 2. The control lever 20 is moved to drive the connecting plate 91 to move towards the side close to or far away from the die 5, so that the distance between the cutting knife 6 and the die 5 is adjusted.

The implementation principle of the embodiment is as follows: when the rubber tube needs to be cut, the rubber tube is sleeved outside the mold 5, the moving rod 72 is controlled to move towards one side close to the mold 5, when the position of the cutter 6 and the position to be cut of the rubber tube are in the same plane, the positioning block 73 is moved along the axial direction of the moving rod 72, so that the positioning block 73 is abutted against the rotating seat 71, the tightening rod 74 is screwed, the axial movement and the rotation of the moving rod 72 are limited under the action of the tightening rod 74, a certain distance is reserved between the rotating seat 71 and the positioning block 73, the moving rod 72 is rotated, the positioning block 73 is driven to synchronously rotate in the rotating process of the moving rod 72, the moving rod 72 drives the cutter 6 to synchronously rotate, so that the end part of the cutter 6 is contacted with the rubber pipe, the rotating shaft 2 is driven to rotate through the transmission assembly, the rotating shaft 2 drives the die 5 and the rubber tube to synchronously rotate, and the end part of the cutter 6 is in contact with the rubber tube, so that the end part of one side of the rubber tube is cut.

When the other end of the rubber tube needs to be cut, the moving rod 72 is rotated reversely, the moving rod 72 drives the end part of the cutter 6 to be away from the rubber tube, the limit of the jacking rod 74 on the moving rod 72 is removed, the moving rod 72 is continuously moved along the axial direction of the moving rod 72, the operations are repeated, the other end of the rubber tube is cut, in the whole cutting work, the connection relation between the rubber tube and the die 5 does not need to be removed, the two ends of the rubber tube can be cut, and the head cutting efficiency is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Rubber tube crop, including operation platform (1) that the level set up, the upper surface rotation of operation platform (1) is connected with axis of rotation (2), the axis of rotation (2) is the level setting, operation platform (1) is provided with and is used for driving axis of rotation (2) pivoted drive assembly, the one end of axis of rotation (2) is provided with mould (5), mould (5) and axis of rotation (2) coaxial rotation, the outside of mould (5) is located to the rubber tube cover, the upper surface of operation platform (1) is provided with cutter (6) that are used for cutting the rubber tube, a serial communication port, the upper surface setting of operation platform (1) is used for controlling drive assembly (7) of cutter (6) along the motion of rubber tube axial direction, drive assembly (7) are including setting firmly rotation seat (71) in operation platform (1) upper surface, The cutting device comprises a moving rod (72) and a positioning block (73) which penetrate through a rotating seat (71), wherein the positioning block (73) and a cutter (6) are respectively positioned at two sides of the rotating seat (71), the axis of the moving rod (72) and the axis of a rotating shaft (2) are arranged in parallel, the end part of the moving rod (72) sequentially penetrates through the positioning block (73) and the rotating seat (71) and then extends to one side close to a mold (5), and the positioning block (73) is provided with a tightening rod (74) for limiting the position of the moving rod (72); and a clamping mechanism (9) for clamping the cutter (6) is arranged at one end of the movable rod (72) close to the die (5).

2. The rubber tube end cutting machine according to claim 1, wherein the number of the rotating seats (71) is two, the positioning blocks (73) are arranged between the two rotating seats (71), first rotating holes (711) are formed in both the two rotating seats (71), the moving rod (72) penetrates through the first rotating holes (711), and the moving rod (72) is rotatably connected with the first rotating holes (711).

3. The rubber tube head cutting machine according to claim 2, characterized in that the positioning block (73) is provided with a second rotating hole (731), the center of the second rotating hole (731) and the center of the first rotating hole (711) are positioned on a straight line, the moving rod (72) is rotatably connected with the second rotating hole (731), the outer wall of the positioning block (73) is provided with a threaded hole, the outer wall of the tightening rod (74) is provided with an external thread matched with the threaded hole, the tightening rod (74) is in threaded connection with the threaded hole, the end of the tightening rod (74) abuts against the outer wall of the moving rod (72), and the axis of the tightening rod (74) and the axis of the moving rod (72) are vertically arranged.

4. The rubber tube end cutting machine according to claim 1, characterized in that a limiting block (8) is arranged between the rotating seat (71) and the positioning block (73) on the side close to the die (5), the limiting block (8) is fixedly connected with the operating platform (1), and the distance from the upper end face of the limiting block (8) to the upper surface of the operating platform (1) is greater than the distance from the positioning block (73) to the upper surface of the operating platform (1).

5. The rubber tube head cutting machine according to claim 4, characterized in that a limiting groove (81) is formed in one side of the limiting block (8) facing the positioning block (73), and when the positioning block (73) abuts against the bottom wall of the limiting groove (81), the positioning block (73) and the rotating seat (71) are arranged at intervals.

6. The rubber tube end cutting machine according to claim 1, wherein the clamping mechanism (9) comprises a connecting plate (91) fixedly arranged on the moving rod (72), the side surface of the connecting plate (91) is perpendicular to the moving rod (72), one end of the connecting plate (91) far away from the moving rod (72) extends to one side close to the mold (5), one side of the connecting plate (91) is provided with a clamping plate (92), the clamping plate (92) and the connecting plate (91) are arranged in parallel, one end of the cutter (6) far away from the mold (5) is arranged between the clamping plate (92) and the connecting plate (91), and a clamping assembly (93) for adjusting the distance between the clamping plate (92) and the connecting plate (91) is arranged between the clamping plate (92) and the connecting plate (91).

7. The rubber tube head cutting machine according to claim 6, wherein the clamping assembly (93) comprises at least two locking screws (931) and a stop block (932) fixedly arranged on the locking screws (931), the locking screws (931) penetrate through the clamping plate (92) and the connecting plate (91) and are in threaded connection with locking nuts (933), a mounting cavity for inserting the cutting knife (6) is defined between a locking rod positioned between the clamping plate (92) and the connecting plate (91) and between the inner wall of the clamping plate (92) and the inner wall of the connecting plate (91), and one side of the cutting knife (6) is limited in the mounting cavity while the other side of the cutting knife extends to the outside of the mounting cavity.

8. The rubber tube end cutting machine according to claim 6, characterized in that a control lever (20) is arranged on one side of the connecting plate (91) close to the die (5), and the axis of the control lever (20) is perpendicular to the axis of the rotating shaft (2).

9. The rubber tube end cutting machine according to claim 1, characterized in that the rotating shaft (2) is fixedly connected with the die (5) through a three-jaw chuck (4), and the die (5) is fixedly connected with the three-jaw chuck (4).