Cord fabric cutting device for automobile tire manufacturing and production

Abstract

The cord fabric cutting device for automobile tire manufacturing and production comprises a rack, an adjusting telescopic rod is fixedly installed on the upper surface of the rack, a hinge seat is hinged to the rod head of the adjusting telescopic rod, a combined frame is fixedly connected to one side of the hinge seat, and the combined frame is installed on the surface of one end of the rack in a combined mode; a conveying roller is rotationally installed on the inner side surface of the combined frame, a supporting roller is rotationally installed at one end of the interior of the rack, a hollow cutting roller is rotationally installed on the upper surface of the supporting roller, a driving shaft is fixedly connected to one end of the hollow cutting roller, and a driving box is installed at one end of the driving shaft in a combined mode. The driving box body is fixedly connected to one side of the outer surface of the rack, the other end of the hollow cutting roller is fixedly connected with a hollow shaft, curtain cloth can be dragged in an auxiliary mode, meanwhile, the distance can be adjusted to adapt to different specifications, accurate deviation correction is facilitated, control and use are convenient, and accuracy and stability are achieved.

Description

Technical Field

[0001] The invention relates to the field of tire production, and more specifically to a cord cutting device for automobile tire manufacturing. Background Art

[0002] Automobile tires are one of the important parts of an automobile. They are in direct contact with the road surface and work together with the automobile suspension to mitigate the impact of the car when it is driving, ensuring that the car has good ride comfort and driving smoothness; ensuring good adhesion between the wheels and the road surface; improving the car's traction, braking and passability; and bearing the weight of the car. The important role that tires play in automobiles is increasingly being valued by people.

[0003] Tire cord is the skeleton material of the tire, which is divided into weft cord and non-weft cord. During the production process, tire cord will be produced into continuous long strips, so before use, the tire cord needs to be cut into short strips of a certain length, and the cutting of tire cord requires the use of a cutting machine.

[0004] However, the existing cutting device structure lacks an adjustable deviation correction function and cannot be adjusted according to the specifications of the cord, which affects the cutting accuracy. In addition, a separate telescopic tool is used for cutting, which cannot be installed in combination with a roller and is prone to mutual influence. A new cord cutting device needs to be proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a cord cutting device for automobile tire manufacturing and production. The telescopic rod and the combined frame are installed and adjusted by the frame, and can be installed in combination, which is conducive to separate adjustment and avoidance of interference. The cutting knife is installed through the internal hollow cutting roller, and the cutting can be controlled during rotation and transportation, which is conducive to synchronous measurement, precision and efficiency. The square rod is installed inside the traction bracket, so as to install the square seat and the extended threaded rod, so as to connect the traction wheel, which can assist in traction of the cord. At the same time, the spacing can be adjusted to adapt to different specifications, which is conducive to precise deviation correction, convenient control and use, and precise and stable.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A cord cutting device for automobile tire manufacturing production comprises a frame, an upper surface of the frame is fixedly mounted with an adjustable telescopic rod, a rod head of the adjustable telescopic rod is hinged with an articulated seat, one side of the articulated seat is fixedly connected with a combined frame, the combined frame is assembled and mounted on one end surface of the frame, a conveying roller is rotatably mounted on the inner surface of the combined frame, a supporting roller is rotatably mounted on one end of the frame, a hollow cutting roller is rotatably mounted on the upper surface of the supporting roller, one end of the hollow cutting roller is fixedly connected with a driving shaft, one end of the driving shaft is assembled and mounted with a driving box, the driving box is fixedly connected to one side of the outer surface of the frame, the other end of the hollow cutting roller is fixedly connected with a hollow shaft, and the hollow shaft and the driving shaft are rotatably mounted on the two end positions of the frame respectively;

[0008] A long through slot is provided at one side of the hollow cutting roller, a long barrel is fixedly connected to one side of the long through slot, a piston plate is slidably mounted on one end of the interior of the long barrel, a cutting knife is fixedly connected to one side of the piston plate, one end of the cutting knife is slidably mounted inside the long through slot, return springs are fixedly connected to both sides of the piston plate, the return springs are slidably mounted on both sides of the interior of the long barrel, the long barrel is fixedly connected to one side of the interior of the hollow cutting roller, and the lengths of the long barrel and the cutting knife are consistent with the long through slot;

[0009] Adjustment slots are provided on both sides of the outer surface of the frame, a transverse telescopic rod is fixedly installed on one side of the interior of the frame, a traction bracket is fixedly installed on the end head of the transverse telescopic rod, the traction bracket is slidably installed inside the frame, square rods are fixedly connected to the upper and lower ends of the inner side of the traction frame, square seats are slidably installed on the outer surface of the square rod, an extended threaded cylinder is fixedly connected to one side of the square seat, an extended threaded rod is installed on the internal thread of the extended threaded cylinder, a combination block is fixedly connected to one end of the extended threaded rod, a traction wheel is rotatably installed on the inner side of the combination block, and the traction wheels are symmetrically distributed on both sides of the interior of the traction bracket.

[0010] Furthermore, a U-shaped frame is fixedly connected to one side of the square seat, and the U-shaped frame is located on one side of the square rod.

[0011] Furthermore, a connecting block is provided on one side of the U-shaped frame, and a threaded rod is rotatably mounted on one side of the connecting block.

[0012] Furthermore, the threaded rod is threadedly installed on one side surface of the traction bracket, and the threaded rod is slidably installed on the inner side of the adjustment slot. The connecting block and the threaded rod are installed by the U-shaped frame, so that the square seat combination on the same side can be positioned, which is conducive to synchronous adjustment, improves the accuracy of traction correction, is conducive to installation and use, and can be adjusted from the outside of the frame to avoid interference, with high adaptability.

[0013] Furthermore, both sides of the interior of the frame are fixedly connected to limit rings, and both sides of the interior of the combined frame are fixedly connected to limit rods. The ends of the limit rods are inserted into the inner surfaces of the limit rings. The limit rods are connected by the limit rings and can be inserted and positioned to ensure the stability of the combined frame's alignment installation and facilitate adjustment and use.

[0014] Furthermore, a sleeve is rotatably mounted on one end surface of the hollow shaft, and two side surfaces of the sleeve are respectively fixedly connected with an exhaust pipe and an air intake pipe.

[0015] Furthermore, the outer surfaces of the exhaust pipe and the air intake pipe are fixedly connected with a fixing rod, and the fixing rod is fixedly connected to one side of the outer surface of the frame. The exhaust pipe and the air intake pipe are connected by a sleeve, and can be combined and connected for positioning without interfering with rotation. It is convenient to control cutting by air pressure, which is conducive to installation and use.

[0016] Furthermore, a control motor is fixedly mounted on one side of the sleeve, and a sealing block is rotatably mounted on one end of the control motor.

[0017] Furthermore, the outer surface of the sealing block is rotatably mounted on the inner surface of the sleeve, and a notch is provided on one side of the sealing block, and the notch is located on one side of the air intake cylinder. By controlling the sealing block connected to the motor and combining it with the notch provided on the surface, the position can be rotated and adjusted to switch the intake and exhaust states, which is convenient for rapid motion control and efficient and stable.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution can be installed in combination by installing the adjustable telescopic rod and the combination frame on the frame, which is convenient for separate adjustment and avoids interference. The cutting knife is installed through the internal hollow cutting roller, and the cutting can be controlled during the rotation and transportation, which is convenient for synchronous measurement, accurate and efficient. The square rod is installed inside the traction bracket, and the square seat and the extended threaded rod are installed to connect the traction wheel, which can assist in traction of the curtain. At the same time, the spacing can be adjusted to adapt to different specifications, which is convenient for accurate correction, convenient for control and use, and accurate and stable.

[0020] (2) By installing the connecting block and the threaded rod on the U-shaped frame, the square seats on the same side can be combined and positioned, which is conducive to synchronous adjustment, improves the accuracy of traction correction, is convenient for installation and use, and can be adjusted from the outside of the frame to avoid interference, with high adaptability.

[0021] (3) The limiting rod is connected through the limiting ring, which can be inserted and positioned to ensure the stability of the assembly frame's installation and facilitate adjustment and use.

[0022] (4) The exhaust pipe and the air intake pipe are connected by a sleeve, which can be combined and positioned without interfering with the rotation. It is convenient to control the cutting by air pressure, which is conducive to installation and use.

[0023] (5) By controlling the motor to connect the sealing block and combining it with the notch on the surface, the position can be adjusted by rotating it, thereby switching the intake and exhaust states, which is convenient for rapid action control and efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the external three-dimensional structure of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the planar structure cross section of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the connection between the traction frame and the traction wheel of the present invention;

[0027] Figure 4 It is a three-dimensional schematic diagram of the connection between the traction wheel and the square seat of the present invention;

[0028] Figure 5 A partial cross-sectional view of the connection of the hollow cutting roller of the present invention;

[0029] Figure 6 It is a cross-sectional schematic diagram of the hollow cutting roller of the present invention;

[0030] Figure 7 A partial cross-sectional view of the sleeve connection of the present invention;

[0031] Figure 8 It is a three-dimensional structural diagram of the hollow cutting roller of the present invention.

[0032] Description of the numbers in the figure:

[0033] 1 frame, 11 adjustable telescopic rod, 12 articulated seat, 13 combined frame, 14 conveying roller, 15 supporting roller, 16 driving box, 17 driving shaft, 18 hollow cutting roller, 19 hollow shaft, 2 long through slot, 21 long cylinder, 22 piston plate, 23 cutting knife, 24 return spring, 25 adjustable through slot, 26 horizontal telescopic rod, 27 traction bracket, 3 square rod, 31 square seat, 32 extended threaded cylinder, 33 extended threaded rod, 34 combined block, 35 traction wheel, 36 connecting block, 37 threaded rod, 38 U-shaped frame, 4 sleeve, 41 exhaust pipe, 42 intake pipe, 43 fixed rod, 44 control motor, 45 sealing block, 46 notch, 5 limit ring, 51 limit rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 , Figure 2 , Figure 5 and Figure 8 , a cord cutting device for automobile tire manufacturing production includes a frame 1, an upper surface of the frame 1 is fixedly installed with an adjustable telescopic rod 11, a rod head of the adjustable telescopic rod 11 is hinged with an articulated seat 12, and a combined frame 13 is fixedly connected to one side of the articulated seat 12, and the combined frame 13 is assembled and installed on one end surface of the frame 1, and the articulated seat 12 is connected by adjusting the telescopic rod 11, so that the combined frame 13 is installed, and can be installed in a aligned manner, which is convenient for adjustment and use. When in use, the combined frame 13 can be aligned to one end position of the frame 1, which is conducive to aligned installation, and the conveying cord can be fed and cut by rotating the internal conveying roller 14, which is convenient for tire processing and production. When the internal structure needs to be maintained, the adjustable telescopic rod 11 can be controlled to extend, and the articulated seat 12 and the combined frame 13 can be pushed to move, so as to separate from the frame 1, and then the combined frame 13 can be flipped upward around the articulated seat 12, so that it can be separated and avoided, which is conducive to the maintenance of the inside of the frame 1, will not interfere, is convenient for installation and use, has high adaptability, and the inner side of the combined frame 13 A conveying roller 14 is rotatably installed on the surface, and a supporting roller 15 is rotatably installed on one end of the interior of the frame 1. The conveying roller 14 is installed by the combined frame, and the supporting roller 15 is installed in combination with the frame, so that the conveying cord can be rotatably transported, which is convenient for tire production after cutting and is easy to install and use. A hollow cutting roller 18 is rotatably installed on the upper surface of the supporting roller 15, and a driving shaft 17 is fixedly connected to one end of the hollow cutting roller 18, and a driving box 16 is assembled and installed on one end of the driving shaft 17. The driving box 16 is fixedly connected to one side of the outer surface of the frame 1, and the driving shaft 17 and the hollow cutting roller 18 are connected through the driving box 16. The driving control can be driven to perform rotation adjustment, which is convenient for conveying and cutting, accurate and stable, and easy to install and use. A hollow shaft 19 is fixedly connected to the other end of the hollow cutting roller 18, and the hollow shaft 19 and the driving shaft 17 are rotatably installed at the two end positions of the frame 1 respectively. The hollow shaft 19 is rotatably supported to ensure the stability of the rotation of the hollow cutting roller 18, and it is also convenient to introduce compressed gas into the interior, which is easy to control and use;

[0036] A long through slot 2 is provided at one side of the hollow cutting roller 18, a long barrel 21 is fixedly connected to one side of the long through slot 2, a piston plate 22 is slidably mounted at one end of the interior of the long barrel 21, a cutting knife 23 is fixedly connected to one side of the piston plate 22, the cutting knife 23 is connected through the piston plate 22, and the piston plate 22 can be pushed by high-pressure gas to slide inside the long barrel 21, thereby pushing the cutting knife 23 to move, so that the long through slot 2 can be extended, and the curtain fabric can be cut in combination with the support roller 15, which is convenient for cutting operation, accurate and efficient, and easy to install. Use, convenient adjustment and use, one end of the cutting knife 23 is slidably installed inside the long strip through groove 2, and the two sides of the piston plate 22 are fixedly connected with the return spring 24. The return spring 24 is installed through the piston plate 22, which can be pressed and reset, which is conducive to the contraction of the cutting knife 23, convenient combination control, avoid interference, and convenient adjustment and use. The return spring 24 is slidably installed on both sides of the interior of the long strip cylinder 21, and the long strip cylinder 21 is fixedly connected to one side of the interior of the hollow cutting roller 18. The length of the long strip cylinder 21 and the cutting knife 23 is consistent with the long strip through groove 2;

[0037] Adjustment slots 25 are provided on both sides of the outer surface of the frame 1. A transverse telescopic rod 26 is fixedly installed on one side of the interior of the frame 1. A traction bracket 27 is fixedly installed on the end of the transverse telescopic rod 26. The traction bracket 17 is pushed by the transverse telescopic rod 26 and can slide laterally inside the frame 1, so as to adjust the position to pull the passing curtain, thereby correcting the deviation and alignment, improving the precision and stability, and facilitating combined use. The traction bracket 27 is slidably installed inside the frame 1, and the upper and lower ends of the inner side of the traction frame 27 are fixedly connected with a square rod 3. Square seats 31 are slidably installed at both ends of the outer surface of the square rod 3, and an extended threaded cylinder 32 is fixedly connected to one side of the square seat 31. The inner thread of the extended threaded tube 32 is installed with an extended threaded rod 33, one end of the extended threaded rod 33 is fixedly connected to a combination block 34, and a traction wheel 35 is rotatably installed on the inner side of the combination block 34. The traction wheels 35 are symmetrically distributed on both sides of the inner side of the traction bracket 27. When in use, the traction wheels 35 on both sides can be aligned to the edge positions of the curtain cloth on both sides, and can be rotated to limit the position, and can be pulled and guided from both sides, which is convenient for correction and alignment and avoids misalignment interference. The extended threaded rod 33 can be rotated to adjust the distance between the upper and lower traction wheels 35 to adapt to different curtain cloths, which can not only ensure the stability of traction correction, but also avoid interference caused by excessive extrusion, and is convenient for combined use.

[0038] See also Figure 1 and Figure 3The U-shaped frame 38 is fixedly connected to one side of the square seat 31, and the U-shaped frame 38 is located at one side of the square rod 3. A connecting block 36 is provided on one side of the U-shaped frame 38, and a threaded rod 37 is rotatably installed on one side of the connecting block 36. The threaded rod 37 is threadedly installed on one side surface of the traction bracket 27, and the threaded rod 37 is slidably installed on one side of the inner side of the adjusting slot 25. By installing the connecting block and the threaded rod on the U-shaped frame, the square seat combination on the same side can be positioned, which is conducive to synchronous adjustment and improves the accuracy of traction correction, which is conducive to installation and use. It can be adjusted from the outside of the frame 1 to avoid interference and has high adaptability. The threaded rod 37 can be rotated from both sides of the frame 1 to push the U-shaped frame 38 to move with the square seat 31, and the position can be adjusted along the square rod 3, thereby moving the traction wheels 35 on both sides, adjusting the lateral spacing, and can be aligned to the edge positions of both sides of the curtain to avoid misalignment. It is accurate and stable and is conducive to installation and use.

[0039] See also Figure 1 and Figure 2 The limiting rings 5 ​​are fixedly connected to both sides of the interior of the frame 1, and the limiting rods 51 are fixedly connected to both sides of the interior of the combined frame 13. The ends of the limiting rods 51 are plugged into the inner surface of the limiting rings 5. The limiting rods are connected by the limiting rings, and can be plugged and positioned to ensure the stability of the combined frame's alignment installation and facilitate adjustment. When the combined frame 13 is aligned and connected to the end position of the frame 1, the limiting rods 51 can be inserted into the limiting rings 5 ​​for alignment installation, which can play a limiting role and can avoid the combined frame 13 from flipping and misalignment, thereby improving the structural stability and accuracy. When separating and adjusting, it is necessary to first extend and push the adjusting telescopic rod 11, so as to separate the combined frame 13 from the limiting ring 5 with the limiting rods 51, and then flip and adjust the combined frame 13, which will not interfere and is conducive to adjustment.

[0040] See also Figure 2 and Figure 6, a sleeve 4 is rotatably mounted on one end surface of the hollow shaft 19, and an exhaust cylinder 41 and an air inlet cylinder 42 are fixedly connected to the two side surfaces of the sleeve 4, respectively. The outer surfaces of the exhaust cylinder 41 and the air inlet cylinder 42 are fixedly connected to a fixing rod 43, and the fixing rod 43 is fixedly connected to one side of the outer surface of the frame 1. The exhaust cylinder and the air inlet cylinder are connected by the sleeve, and can be combined and connected for positioning without interfering with the rotation, which is convenient for cutting by air pressure control, and is conducive to installation and use. The hollow shaft 19 is rotatably mounted by the sleeve, which will not interfere with the rotation, is conducive to connection and use, and compressed air can be introduced from the inside of the air inlet cylinder 42, thereby Entering into the hollow cutting roller 18 through the hollow shaft 19, the piston plate 22 can be pushed to slide in the long tube 21, thereby sliding with the cutting knife 23. After extending from the long through groove 2, the passing cord can be cut on the surface of the support roller 15, which is convenient for subsequent tire production and use, convenient and efficient. After exhausting from the exhaust pipe 41, the pressure can be released and reset, so that the reset spring 24 can push the piston plate 22 to reset, and shrink the cutting knife 23 to avoid interference with rotation, which is beneficial to continuous conveying of the cord and intermittent cutting. The cutting length is detected according to the number of rotations, which is beneficial for combined use.

[0041] See also Figure 6 and Figure 7 A control motor 44 is fixedly installed on one side of the sleeve 4, and a sealing block 45 is rotatably installed on one end of the control motor 44. The outer surface of the sealing block 45 is rotatably installed on the inner surface of the sleeve 4. A notch 46 is provided on one side of the sealing block 45, and the notch 46 is located on one side of the air intake cylinder 42. The sealing block is connected to the control motor, and combined with the notch set on the surface, the position can be rotated to adjust, so as to switch the intake and exhaust states, which is convenient for rapid action control, efficient and stable. The sealing block 45 is rotated by the control motor 44 to adjust the position of the notch 46. When the position is aligned with the air intake cylinder 42, the exhaust cylinder 41 is closed, and compressed air can be introduced into the interior. After the notch 46 is adjusted to the position of the exhaust cylinder 41, the air intake cylinder 42 can be closed to stop the intake. At this time, the air can be exhausted and the pressure can be released, which is conducive to rotation adjustment, efficient and stable, and convenient for precise adjustment.

[0042] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cord cutting device for automobile tire manufacturing, comprising a frame (1), characterized in that: An adjustable telescopic rod (11) is fixedly mounted on the upper surface of the frame (1); a rod head of the adjustable telescopic rod (11) is hingedly connected to a hinge seat (12); a combination frame (13) is fixedly connected to one side of the hinge seat (12); the combination frame (13) is assembled and mounted on one end surface of the frame (1); a conveying roller (14) is rotatably mounted on the inner surface of the combination frame (13); a supporting roller (15) is rotatably mounted on one end of the inner side of the frame (1); the supporting roller (15) A hollow cutting roller (18) is rotatably mounted on the upper surface of the frame (1); one end of the hollow cutting roller (18) is fixedly connected to a driving shaft (17); one end of the driving shaft (17) is assembled with a driving box (16); the driving box (16) is fixedly connected to one side of the outer surface of the frame (1); the other end of the hollow cutting roller (18) is fixedly connected to a hollow shaft (19); the hollow shaft (19) and the driving shaft (17) are rotatably mounted at two end positions of the frame (1) respectively; A long through groove (2) is provided at one side of the hollow cutting roller (18), a long barrel (21) is fixedly connected to one side of the long through groove (2), a piston plate (22) is slidably mounted on one end of the interior of the long barrel (21), a cutting knife (23) is fixedly connected to one side of the piston plate (22), one end of the cutting knife (23) is slidably mounted inside the long through groove (2), both sides of the piston plate (22) are fixedly connected to return springs (24), the return springs (24) are slidably mounted on both sides of the interior of the long barrel (21), the long barrel (21) is fixedly connected to one side of the interior of the hollow cutting roller (18), and the lengths of the long barrel (21) and the cutting knife (23) are consistent with the long through groove (2); Both sides of the outer surface of the frame (1) are provided with adjustment slots (25); a transverse telescopic rod (26) is fixedly mounted on one side of the interior of the frame (1); a traction bracket (27) is fixedly mounted on the end of the transverse telescopic rod (26); the traction bracket (27) is slidably mounted inside the frame (1); a square rod (3) is fixedly connected to the upper and lower ends of the inner side of the traction frame (27); square seats (31) are slidably mounted on the outer surfaces of the square rod (3); one side of the square seat (31) is fixedly connected to an extended threaded cylinder (32); an extended threaded rod (33) is mounted on the inner thread of the extended threaded cylinder (32); one end of the extended threaded rod (33) is fixedly connected to a combination block (34); a traction wheel (35) is rotatably mounted on the inner side of the combination block (34); the traction wheels (35) are symmetrically distributed at both sides of the interior of the traction bracket (27).

2. A cord cutting device for automobile tire manufacturing according to claim 1, characterized in that: A U-shaped frame (38) is fixedly connected to one side of the square seat (31), and the U-shaped frame (38) is located on one side of the square rod (3).

3. A cord cutting device for automobile tire manufacturing according to claim 2, characterized in that: A connecting block (36) is provided on one side of the U-shaped frame (38), and a threaded rod (37) is rotatably mounted on one side of the connecting block (36).

4. A cord cutting device for automobile tire manufacturing according to claim 3, characterized in that: The threaded rod (37) is threadedly mounted on a side surface of the traction bracket (27), and the threaded rod (37) is slidably mounted on an inner side of the adjustment slot (25).

5. The cord cutting device for automobile tire manufacturing according to claim 1, characterized in that: The frame (1) has two inner sides fixedly connected to limit rings (5), the combined frame (13) has two inner sides fixedly connected to limit rods (51), and the ends of the limit rods (51) are plugged into the inner surfaces of the limit rings (5).

6. The cord cutting device for automobile tire manufacturing according to claim 1, characterized in that: A sleeve (4) is rotatably mounted on one end surface of the hollow shaft (19), and two side surfaces of the sleeve (4) are respectively fixedly connected with an exhaust pipe (41) and an intake pipe (42).

7. A cord cutting device for automobile tire manufacturing according to claim 6, characterized in that: The outer surfaces of the exhaust cylinder (41) and the air intake cylinder (42) are both fixedly connected to a fixing rod (43), and the fixing rod (43) is fixedly connected to one side of the outer surface of the frame (1).

8. The cord cutting device for automobile tire manufacturing according to claim 6, characterized in that: A control motor (44) is fixedly mounted on one side of the sleeve (4), and a sealing block (45) is rotatably mounted on one end of the control motor (44).

9. A cord cutting device for automobile tire manufacturing according to claim 8, characterized in that: The outer surface of the sealing block (45) is rotatably mounted on the inner surface of the sleeve (4), and a notch (46) is provided on one side of the sealing block (45). The notch (46) is located on one side of the air intake cylinder (42).

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