A tire inner cavity grinding machine for tire production

Abstract

The present invention belongs to the technical field of tire production, and specifically is a tire inner cavity grinder for tire production, comprising a grinding table and a grinding plate, wherein a rotating table is rotatably installed inside the grinding table, a mounting box is fixedly installed on the top of the rotating table, a hydraulic cylinder is fixedly installed on one side of the mounting box, a movable connecting block is fixedly installed on the output end of the hydraulic cylinder, and a vertical slide groove 2 is provided on the side of the mounting box where the hydraulic cylinder is installed, so that the grinding plate, which is initially horizontal, is horizontally inserted into the inner side of the tire, so that it is convenient to put the grinding plate into the inner side of the tire, and the process of putting the grinding plate into the inner side of the tire is greatly simplified, and after the grinding plate is completely inserted into the inner cavity of the tire, the grinding plate can be in a vertical state, so that the outer side of the grinding plate is fitted with the inner side of the tire, so as to facilitate the fitting of the inner side of the tire, ensure the grinding effect, help to improve the uniformity and comprehensiveness of the grinding, and ensure that the grinding effect reaches the best state.

Description

Technical Field

[0001] The invention belongs to the technical field of tire production, in particular to a tire inner cavity grinding machine for tire production. Background Art

[0002] Tire production is a manufacturing process covering a wide range of fields. It not only includes the production of new tires, but also covers the important link of tire retreading. Tire retreading is a positive way to recycle waste tires, and is an extension and processing and reuse of the tire industry. It is of positive significance to promote resource conservation and comprehensive utilization, promote the transformation of economic growth mode and sustainable development. In terms of its prospects, waste tire retreading is an indispensable industry in the transportation of the automobile industry, just like the tire industry. In the tire retreading process, the inner cavity of the tire needs to be polished.

[0003] In the current prior art, manual grinding and mechanical grinding are mainly used for grinding the inner cavity of the tire. Since the inner cavity of the tire is an arc-shaped surface and is relatively complex, manual grinding is inefficient. During mechanical grinding, since the position of the grinding sheet is usually fixed, and the opening of the inner cavity of the tire is often smaller than the inner diameter of the tire, this poses a great challenge to the placement of the grinding sheet. In this case, if the grinding sheet is forcibly placed into the inner cavity of the tire, not only is the operation difficult, but it is also very easy to cause irreversible scratches to the inner cavity of the tire. These scratches will not only destroy the internal structure of the tire and affect the overall strength and durability of the tire, but will also have a negative impact on the subsequent grinding effect, making the grinding uneven, and may even cause the tire to malfunction during use.

[0004] To this end, the present invention provides a tire inner cavity grinding machine for tire production. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the tire inner cavity grinder for tire production described in the present invention comprises a grinding table and a grinding plate, a rotating table is rotatably installed inside the grinding table, a mounting box is fixedly installed on the top of the rotating table, a hydraulic cylinder is fixedly installed on one side of the mounting box, a movable connecting block is fixedly installed on the output end of the hydraulic cylinder, a vertical slide groove 2 is provided on the side of the mounting box on which the hydraulic cylinder is installed, a connecting bent plate is fixedly installed on one side of the movable connecting block, a hinged plate is fixedly installed on the bottom of one end of the connecting bent plate, a resistance plate is movably installed on one end of the hinged plate, a vertical telescopic plate is rotatably installed on the end of the resistance plate away from the hinged plate, and the vertical telescopic plate The end of the plate away from the resistance plate is fixedly installed with a connecting bent seat, the end of the connecting bent seat away from the vertical telescopic plate is fixedly installed with a horizontal telescopic plate, one side of the vertical telescopic plate is fixedly installed with a vertical push plate, a fixed sleeve is fixedly installed on the side of the mounting box away from the hydraulic cylinder, a movable sleeve is movably installed inside the fixed sleeve, an inner rotating rod is movably installed inside the movable sleeve, a resistance cylinder is fixedly installed on one end of the inner rotating rod, a ventilation seat is fixedly installed on the end of the inner rotating rod away from the resistance cylinder, a threaded assembly cap is fixedly installed on the end of the ventilation seat away from the inner rotating rod, a grinding belt is fixedly installed on the outer side of the grinding plate, and a threaded assembly head is fixedly installed on the side of the grinding plate away from the grinding belt.

[0007] Preferably, a spring groove is opened inside the fixed sleeve, a spring is installed inside the spring groove, the spring is sleeved and installed on the outside of the movable sleeve, a spring pressure plate is fixedly installed on the outside of the movable sleeve, and the spring pressure plate is slidably installed on the inner side of the spring groove, one end of the spring is fixedly installed on one side of the spring pressure plate, and the other end of the spring is fixedly connected to one side of the inner cavity of the spring groove.

[0008] Preferably, a torsion spring groove is opened on the inner side of the movable sleeve, a torsion spring is installed on the inner side of the torsion spring groove, the torsion spring is sleeved and installed on the outer side of the inner rotating rod, one end of the torsion spring is fixedly connected to the outer side of the inner rotating rod, and the other end of the torsion spring is fixedly connected to the inner side of the torsion spring groove.

[0009] Preferably, a rotating knob is fixedly installed on one end of the contact plate, a sliding block is fixedly installed on one side of the rotating knob, a vertical sliding groove is opened on one side of the installation box, the sliding block is slidably installed on the inner side of the vertical sliding groove, a manual shift block is fixedly installed on one side of the rotating knob, and the internal thread of the manual shift block is connected with a fastening bolt.

[0010] Preferably, a fixed bent plate is fixedly installed on the bottom of the grinding table, a driving motor is fixedly installed on one end of the fixed bent plate away from the grinding table, a driving gear is fixedly installed on the output end of the driving motor, a driven magnetic ring is fixedly installed on the outer side of the bottom of the rotating table, and the outer side of the driving gear is meshed with the outer side of the driven magnetic ring.

[0011] Preferably, a piston cylinder is fixedly installed on the bottom of the installation box, a piston head is slidably installed inside the piston cylinder, and a connecting bent rod is fixedly installed on the bottom of the piston head, and one end of the connecting bent rod away from the piston head is fixedly connected to the bottom of the hinged plate, and the top of the piston cylinder is connected to an air intake pipe.

[0012] Preferably, the top of the piston cylinder is connected to an air outlet pipe, and one-way valves are installed inside the air inlet pipe and the air outlet pipe. The end of the air outlet pipe away from the piston cylinder is connected to the ventilation seat, and chip blowing chutes are opened on both sides of the ventilation seat, and the chip blowing chutes are opened at an angle.

[0013] Preferably, mounting plates are fixedly installed on both sides of the top of the grinding table, rectangular sockets are opened inside the grinding table and the mounting plates, a placement component is installed on the top of the mounting plate, the placement component includes a placement arc plate, a limiting arc plate is fixedly installed on the top of the placement arc plate, a rectangular plug-in block is fixedly installed on the bottom of the placement arc plate, and the rectangular plug-in block is snap-fitted on the inner side of the rectangular socket.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The tire inner cavity grinder for tire production described in the present invention facilitates the placement of the grinding plate into the inner side of the tire by inserting the grinding plate that is initially horizontal into the inner side of the tire in a horizontal manner, greatly simplifies the process of placing the grinding plate into the inner side of the tire, and makes it extremely convenient and easy to operate. By adopting this horizontal entry method, not only can the grinding plate be effectively prevented from getting stuck or tilted during the entry process, but also the accuracy and efficiency of placement can be greatly improved, thereby making the entire placement process simple and smooth. After that, the connecting bent plate continues to descend, so that the vertical telescopic plate contacts the resistance cylinder, and the vertical push plate pushes one end of the resistance cylinder, so that the resistance cylinder rotates on the outer side of the movable sleeve, so that the grinding plate is in a vertical state, so that the outer side of the grinding plate is fitted with the inner side of the tire, thereby facilitating the fitting of the inner side of the tire, ensuring the grinding effect, helping to improve the uniformity and comprehensiveness of the grinding, and ensuring that the grinding effect reaches the best state.

[0016] 2. The tire inner cavity grinder for tire production described in the present invention can drive the connecting bent rod to move downward when the hinged plate moves downward, thereby pulling the piston head to move downward inside the piston cylinder, thereby drawing in outside air through the air inlet pipe, and when the hinged plate moves upward after grinding is completed, the connecting bent rod can push the piston head upward to move inside the piston cylinder, and transport the gas to the inside of the ventilation seat through the air outlet pipe, and then spray it out through the chip blowing chute to blow the inside of the tire, blow out the grinding debris, clean the inside of the tire, and ensure the cleanliness of the inside of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention;

[0019] Figure 2 The present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure when viewed from above in the present invention;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the installation box in the present invention;

[0022] Figure 5 It is a schematic diagram of a local three-dimensional structure in the present invention;

[0023] Figure 6 It is a partial cross-sectional structural schematic diagram of the present invention;

[0024] In the figure: 1. grinding table; 2. rotating table; 3. mounting box; 4. mounting plate; 5. limiting arc plate; 6. placing arc plate; 7. chip blowing chute; 8. rotating knob; 9. vertical slideway 1; 10. threaded assembly head; 11. grinding belt; 12. grinding plate; 13. vent seat; 14. movable connection block; 15. vertical slideway 2; 16. hydraulic cylinder; 17. rectangular socket; 18. fixed bending plate; 19. driving motor; 20. driving gear; 21. driven magnetic ring; 22. piston cylinder; 23. connection Bending rod; 24, rectangular plug block; 25, abutment plate; 26, vertical telescopic plate; 27, connecting bending seat; 28, horizontal telescopic plate; 29, connecting bending plate; 30, hinged plate; 31, fixed sleeve; 32, movable sleeve; 33, air inlet pipe; 34, air outlet pipe; 35, threaded assembly cap; 36, abutment cylinder; 37, vertical push plate; 38, inner rotating rod; 39, spring slot; 40, spring; 41, torsion spring slot; 42, torsion spring; 43, manual shift block; 44, fastening bolt; 45, sliding block. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] like Figures 1 to 6As shown, a tire inner cavity grinder for tire production described in an embodiment of the present invention comprises a grinding table 1 and a grinding plate 12, a rotating table 2 is rotatably installed inside the grinding table 1, a mounting box 3 is fixedly installed on the top of the rotating table 2, a hydraulic cylinder 16 is fixedly installed on one side of the mounting box 3, a movable connecting block 14 is fixedly installed on the output end of the hydraulic cylinder 16, a vertical slide groove 2 15 is provided on one side of the mounting box 3 where the hydraulic cylinder 16 is installed, the movable connecting block 14 is slidably installed on the inner side of the vertical slide groove 2 15, a connecting bent plate 29 is fixedly installed on one side of the movable connecting block 14, a hinged plate 30 is fixedly installed on the bottom of one end of the connecting bent plate 29, and a resisting plate 2 is movably installed on one end of the hinged plate 30 5. The end of the contact plate 25 away from the hinged plate 30 is rotatably mounted with a vertical telescopic plate 26. The end of the vertical telescopic plate 26 away from the contact plate 25 is fixedly mounted with a connecting bent seat 27. The end of the connecting bent seat 27 away from the vertical telescopic plate 26 is fixedly mounted with a horizontal telescopic plate 28. The top of the horizontal telescopic plate 28 away from the end of the connecting bent seat 27 is fixedly connected to the end of the connecting bent plate 29 away from the hinged plate 30. A vertical push plate 37 is fixedly mounted on one side of the vertical telescopic plate 26. A fixed sleeve 31 is fixedly mounted on one side of the mounting box 3 away from the hydraulic cylinder 16. A movable sleeve 32 is movably mounted inside the fixed sleeve 31. An inner rotating rod 38 is movably mounted inside the movable sleeve 32. The inner rotating rod One end of the grinding plate 12 is fixedly installed with a friction cylinder 36, and the side of the friction cylinder 36 away from the inner rotating rod 38 is in contact with one side of the friction plate 25, and the end of the friction cylinder 36 fixedly connected to the inner rotating rod 38 is rotatably installed on the outside of the movable sleeve 32, and the end of the inner rotating rod 38 away from the friction cylinder 36 is fixedly installed with a vent seat 13, and the end of the vent seat 13 away from the inner rotating rod 38 is fixedly installed with a threaded assembly cap 35, and the outer side of the grinding plate 12 is fixedly installed with a grinding belt 11, and the side of the grinding plate 12 away from the grinding belt 11 is fixedly installed with a threaded assembly head 10, and the end of the threaded assembly head 10 away from the grinding plate 12 is threadedly connected to the inner side of the threaded assembly cap 35, and the fixed sleeve 31 A spring slot 39 is provided inside, a spring 40 is installed inside the spring slot 39, the spring 40 is sleeved and installed on the outside of the movable sleeve 32, a spring pressure plate is fixedly installed on the outside of the movable sleeve 32, and the spring pressure plate is slidably installed on the inside of the spring slot 39, one end of the spring 40 is fixedly installed on one side of the spring pressure plate, and the other end of the spring 40 is fixedly connected to one side of the inner cavity of the spring slot 39, a torsion spring slot 41 is provided inside the movable sleeve 32, a torsion spring 42 is installed inside the torsion spring slot 41, the torsion spring 42 is sleeved and installed on the outside of the inner rotating rod 38, one end of the torsion spring 42 is fixedly connected to the outside of the inner rotating rod 38, and the other end of the torsion spring 42 is fixedly connected to the inside of the torsion spring slot 41;During operation, firstly, a suitable grinding plate 12 is selected according to the inner cavity contour of the tire to be polished, and the threaded assembly head 10 at one end of the grinding plate 12 is threadedly connected to the inner side of the threaded assembly cap 35. In the initial state after assembly, the grinding plate 12 is in a horizontal state, and then the tire to be polished can be placed on the top of the grinding table 1, and the horizontal center line of the tire and the center of the grinding plate 12 are in the same horizontal plane. In the initial state, the hydraulic cylinder 16 is in a telescopic state, and then the hydraulic cylinder 16 is started to retract, driving the mobile connecting block 14 to move downward inside the vertical slide groove 15, thereby driving the hinged plate 30 and the hinged plate 30 through the connecting bent plate 29. The horizontal telescopic plate 28 moves downward at the same time, and moves the contact plate 25 downward. The inclined contact plate 25 can push the movable sleeve 32 toward the outside of the installation box 3 through the contact cylinder 36, and thereby push the grinding plate 12 to move through the vent seat 13, the threaded assembly cap 35 and the threaded assembly head 10, and finally the grinding plate 12 in the initial state is horizontally entered into the inner side of the tire, which is convenient for placing the grinding plate 12 into the inner side of the tire, greatly simplifying the process of placing the grinding plate 12 into the inner side of the tire, making it extremely convenient and easy to operate. By adopting this horizontal entry method, it can not only effectively avoid the grinding plate 12 from entering The jamming or tilting during the process can also greatly improve the accuracy and efficiency of placement, making the entire placement process simple and smooth. Then, the connecting bent plate 29 continues to descend, so that the vertical telescopic plate 26 contacts the abutting cylinder 36, and the vertical push plate 37 pushes one end of the abutting cylinder 36, so that the abutting cylinder 36 rotates on the outside of the movable sleeve 32, and drives the inner rotating rod 38 to rotate, thereby driving the vent seat 13, the threaded assembly cap 35 and the threaded assembly head 10 to rotate, thereby driving the grinding plate 12 to rotate, so that the grinding plate 12 is in a vertical state, so that the outer side of the grinding plate 12 is aligned with the inner side of the tire. The spring 40 and the torsion spring 42 can be arranged to fit the inner side of the tire, thereby facilitating the fitting of the inner side of the tire, ensuring the grinding effect, helping to improve the uniformity and comprehensiveness of the grinding, and ensuring that the grinding effect reaches the best state. After the inner cavity of the tire is polished, the output end of the hydraulic cylinder 16 can extend to drive the connecting bent plate 29, the horizontal telescopic plate 28, the connecting bent seat 27, the vertical telescopic plate 26, the abutting plate 25 and the hinged plate 30 to rise, and the movable sleeve 32 and the inner rotating rod 38 can be reset, and the grinding plate 12 can be transformed into a horizontal state again, and be removed from the inside of the tire, so as to facilitate the grinding of the inner side of the next tire. ;

[0027] like Figures 1 to 6As shown, a rotating knob 8 is fixedly installed at one end of the contact plate 25, a sliding block 45 is fixedly installed at one side of the rotating knob 8, a vertical slide groove 9 is opened at one side of the installation box 3, the sliding block 45 is slidably installed on the inner side of the vertical slide groove 9, a manual shift block 43 is fixedly installed at one side of the rotating knob 8, and the internal thread of the manual shift block 43 is connected with a fastening bolt 44; when working, the contact plate 25 can be driven to rotate by rotating the rotating knob 8, thereby adjusting the inclination of the contact plate 25, thereby changing the horizontal projection distance of the contact plate 25, and changing the position of the movable sleeve 32 in the fixed position. The moving distance inside the sleeve 31 can adjust the moving distance of the grinding plate 12, so that it is suitable for tires with different inner diameters and improves the use effect of the device. This adjustable design allows operators to easily cope with tires of different specifications and sizes without frequently replacing or adjusting tools, which significantly improves work efficiency and convenience. By precisely controlling the moving distance of the grinding plate 12, it can not only ensure the safety and accuracy of the grinding process, but also further optimize the grinding effect to meet the personalized needs of different tires, truly realizing the versatility and efficiency of the device.

[0028] like Figures 1 to 6 As shown, a fixed bent plate 18 is fixedly installed at the bottom of the grinding table 1, and a driving motor 19 is fixedly installed at one end of the fixed bent plate 18 away from the grinding table 1, and a driving gear 20 is fixedly installed at the output end of the driving motor 19. A driven magnetic ring 21 is fixedly installed on the outer side of the bottom of the rotating table 2, and the outer side of the driving gear 20 and the outer side of the driven magnetic ring 21 are meshed; when working, after the driving motor 19 is started, the output end of the driving motor 19 can drive the driving gear 20 to rotate, thereby driving the driven magnetic ring 21 to rotate, thereby driving the rotating table 2 to rotate, and driving the installation box 3 to rotate, so that the grinding plate 12 is rotated, and the rotation grinds the inner cavity of the tire, thereby improving the grinding quality and efficiency, ensuring that the tire can be restored to a good use state after grinding, extending the service life, and improving driving safety.

[0029] like Figures 1 to 6As shown, a piston cylinder 22 is fixedly installed at the bottom of the installation box 3, a piston head is slidably installed inside the piston cylinder 22, and a connecting bent rod 23 is fixedly installed at the bottom of the piston head, and the end of the connecting bent rod 23 away from the piston head is fixedly connected to the bottom of the hinged plate 30, the top of the piston cylinder 22 is connected to an air inlet pipe 33, and the top of the piston cylinder 22 is connected to an air outlet pipe 34, and a one-way valve is installed inside the air inlet pipe 33 and the air outlet pipe 34, and the end of the air outlet pipe 34 away from the piston cylinder 22 is connected to the ventilation seat 13, and both sides of the ventilation seat 13 are provided with chip blowing chute 7, and the chip blowing chute 7 is inclined. It is opened obliquely; when working, when the hinged plate 30 moves downward, it can drive the connecting bent rod 23 to move downward, thereby pulling the piston head to move downward inside the piston cylinder 22, so that the outside air is sucked in through the air inlet pipe 33, and when the hinged plate 30 moves upward after grinding, the connecting bent rod 23 can push the piston head upward to move inside the piston cylinder 22, and the gas is transported to the inside of the vent seat 13 through the air outlet pipe 34, and then sprayed out through the chip blowing chute 7 to blow the inside of the tire, blow out the grinding debris, clean the inside of the tire, and ensure the cleanliness of the inside of the tire.

[0030] like Figures 1 to 6 As shown, mounting plates 4 are fixedly installed on both sides of the top of the grinding table 1, rectangular sockets 17 are opened inside the grinding table 1 and the mounting plate 4, and a placing component is installed on the top of the mounting plate 4, the placing component includes a placing arc plate 6, a limiting arc plate 5 is fixedly installed on the top of the placing arc plate 6, and a rectangular plug 24 is fixedly installed on the bottom of the placing arc plate 6, and the rectangular plug 24 is snap-fitted on the inner side of the rectangular socket 17; when working, the tire to be polished can be placed through the placing component, and the placing arc plates 6 of different thicknesses and the limiting arc plates 5 of different curvatures can be replaced according to the size of the tire to improve the adaptability of the device, and after the tire is placed on the top of the placing component, the staff must apply pressing pressure to the tire during the polishing process.

[0031] Working principle: First, select a suitable grinding plate 12 according to the inner cavity contour of the tire to be polished, and thread the threaded assembly head 10 at one end of the grinding plate 12 to the inner side of the threaded assembly cap 35. In the initial state after assembly, the grinding plate 12 is in a horizontal state. Then, the tire to be polished can be placed on the top of the polishing table 1, and the horizontal center line of the tire and the center of the grinding plate 12 are on the same horizontal plane. In the initial state, the hydraulic cylinder 16 is in a telescopic state, and then the hydraulic cylinder 16 is started to retract, driving the mobile connection block 14 to move downward inside the vertical slide groove 15, thereby connecting the bent plate 29. The hinged plate 30 and the horizontal telescopic plate 28 are driven to move downward at the same time, and the contact plate 25 is moved downward. The inclined contact plate 25 can push the movable sleeve 32 toward the outside of the installation box 3 through the contact cylinder 36, and thereby push the grinding plate 12 to move through the vent seat 13, the threaded assembly cap 35 and the threaded assembly head 10, and finally the initially horizontal grinding plate 12 is horizontally entered into the inner side of the tire, and then the connecting bent plate 29 continues to descend, so that the vertical telescopic plate 26 contacts the contact cylinder 36, and the vertical push plate 37 pushes one end of the contact cylinder 36, so that the contact cylinder 36 is in the movable sleeve The outer side of the tire 32 rotates, and drives the inner rotating rod 38 to rotate, thereby driving the vent seat 13, the threaded assembly cap 35 and the threaded assembly head 10 to rotate, thereby driving the grinding plate 12 to rotate, so that the grinding plate 12 is in a vertical state, so that the outer side of the grinding plate 12 fits with the inner side of the tire, thereby facilitating the fitting of the inner side of the tire, and then starting the driving motor 19, the output end of the driving motor 19 can drive the driving gear 20 to rotate, thereby driving the driven magnetic ring 21 to rotate, thereby driving the rotating table 2 to rotate, and driving the mounting box 3 to rotate, so that the grinding plate 12 is moved forward The hinged plate 30 rotates and grinds the inner cavity of the tire. When the hinged plate 30 moves downward, the connecting bent rod 23 can be driven to move downward, thereby pulling the piston head to move downward inside the piston cylinder 22, so that outside air is sucked in through the air inlet pipe 33, and when the hinged plate 30 moves upward after grinding, the connecting bent rod 23 can push the piston head upward to move inside the piston cylinder 22, and the gas is transported to the inside of the vent seat 13 through the air outlet pipe 34, and then ejected through the chip blowing chute 7 to blow the inside of the tire, blow out the grinding debris, clean the inside of the tire, and ensure the cleanliness of the inside of the tire.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tire inner cavity grinding machine for tire production, characterized in that: The invention comprises a grinding table (1) and a grinding plate (12), wherein a rotating table (2) is rotatably mounted inside the grinding table (1), a mounting box (3) is fixedly mounted on the top of the rotating table (2), a hydraulic cylinder (16) is fixedly mounted on one side of the mounting box (3), a movable connecting block (14) is fixedly mounted on the output end of the hydraulic cylinder (16), a vertical slide groove (15) is provided on the side of the mounting box (3) on which the hydraulic cylinder (16) is mounted, a connecting bent plate (29) is fixedly mounted on one side of the movable connecting block (14), a hinged plate (30) is fixedly mounted on the bottom of one end of the connecting bent plate (29), a contact plate (25) is movably mounted on one end of the hinged plate (30), a vertical telescopic plate (26) is rotatably mounted on the end of the contact plate (25) away from the hinged plate (30), a connecting bent seat (27) is fixedly mounted on the end of the vertical telescopic plate (26) away from the contact plate (25), and the connecting bent plate (29) is fixedly mounted on the bottom of the connecting bent plate (29). A horizontal telescopic plate (28) is fixedly mounted on one end of the bending seat (27) away from the vertical telescopic plate (26); a vertical push plate (37) is fixedly mounted on one side of the vertical telescopic plate (26); a fixed sleeve (31) is fixedly mounted on one side of the mounting box (3) away from the hydraulic cylinder (16); a movable sleeve (32) is movably mounted inside the fixed sleeve (31); an inner rotating rod (38) is movably mounted inside the movable sleeve (32); a resisting cylinder (36) is fixedly mounted on one end of the inner rotating rod (38); a vent seat (13) is fixedly mounted on one end of the inner rotating rod (38) away from the resisting cylinder (36); a threaded assembly cap (35) is fixedly mounted on one end of the vent seat (13) away from the inner rotating rod (38); a grinding belt (11) is fixedly mounted on the outer side of the grinding plate (12); and a threaded assembly head (10) is fixedly mounted on one side of the grinding plate (12) away from the grinding belt (11).

2. A tire inner cavity grinding machine for tire production according to claim 1, characterized in that: A spring groove (39) is provided inside the fixed sleeve (31), a spring (40) is installed inside the spring groove (39), the spring (40) is sleeved and installed on the outside of the movable sleeve (32), a spring pressure plate is fixedly installed on the outside of the movable sleeve (32), and the spring pressure plate is slidably installed on the inside of the spring groove (39), one end of the spring (40) is fixedly installed on one side of the spring pressure plate, and the other end of the spring (40) is fixedly connected to one side of the inner cavity of the spring groove (39).

3. A tire inner cavity grinding machine for tire production according to claim 2, characterized in that: A torsion spring groove (41) is provided on the inner side of the movable sleeve (32), a torsion spring (42) is installed on the inner side of the torsion spring groove (41), the torsion spring (42) is sleeved and installed on the outer side of the inner rotating rod (38), one end of the torsion spring (42) is fixedly connected to the outer side of the inner rotating rod (38), and the other end of the torsion spring (42) is fixedly connected to the inner side of the torsion spring groove (41).

4. A tire inner cavity grinding machine for tire production according to claim 3, characterized in that: A rotating knob (8) is fixedly mounted on one end of the contact plate (25), a sliding block (45) is fixedly mounted on one side of the rotating knob (8), a vertical sliding groove (9) is opened on one side of the installation box (3), the sliding block (45) is slidably mounted on the inner side of the vertical sliding groove (9), a manual shifting block (43) is fixedly mounted on one side of the rotating knob (8), and a fastening bolt (44) is connected to the internal thread of the manual shifting block (43).

5. A tire inner cavity grinding machine for tire production according to claim 4, characterized in that: A fixed bent plate (18) is fixedly mounted on the bottom of the grinding table (1), a driving motor (19) is fixedly mounted on one end of the fixed bent plate (18) away from the grinding table (1), a driving gear (20) is fixedly mounted on the output end of the driving motor (19), a driven magnetic ring (21) is fixedly mounted on the outer side of the bottom of the rotating table (2), and the outer side of the driving gear (20) is meshed with the outer side of the driven magnetic ring (21).

6. A tire inner cavity grinding machine for tire production according to claim 5, characterized in that: A piston cylinder (22) is fixedly mounted on the bottom of the mounting box (3), a piston head is slidably mounted inside the piston cylinder (22), a connecting bent rod (23) is fixedly mounted on the bottom of the piston head, and an end of the connecting bent rod (23) away from the piston head is fixedly connected to the bottom of the hinge plate (30), and the top of the piston cylinder (22) is connected to an air intake pipe (33).

7. A tire inner cavity grinding machine for tire production according to claim 6, characterized in that: The top of the piston cylinder (22) is connected to an air outlet pipe (34), and one-way valves are installed inside the air inlet pipe (33) and the air outlet pipe (34). The end of the air outlet pipe (34) away from the piston cylinder (22) is connected to the vent seat (13), and both sides of the vent seat (13) are provided with chip blowing chute (7), and the chip blowing chute (7) is opened at an angle.

8. A tire inner cavity grinding machine for tire production according to claim 7, characterized in that: Mounting plates (4) are fixedly mounted on both sides of the top of the grinding table (1); rectangular sockets (17) are provided inside the grinding table (1) and the mounting plate (4); a placement component is installed on the top of the mounting plate (4); the placement component comprises a placement arc plate (6); a limit arc plate (5) is fixedly mounted on the top of the placement arc plate (6); a rectangular plug block (24) is fixedly mounted on the bottom of the placement arc plate (6); the rectangular plug block (24) is snap-fitted on the inner side of the rectangular socket (17).

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