Grinding device for tire mold production

Abstract

The invention relates to the technical field of mold polishing, and discloses a polishing device for tire mold production, which comprises a base, a machining disc for placing a tire mold is rotatably arranged on the base, a positioning mechanism is arranged at the axis of the machining disc, and a rotating mechanism for driving the machining disc to rotate is arranged in the base. The base is provided with two moving mechanisms, each moving mechanism is provided with a displacement grinding mechanism and a positioning grinding mechanism, the displacement grinding mechanism comprises a first grinder for grinding the bottom face and the inner side face of the tire mold, and the positioning grinding mechanism comprises a second grinder for grinding the inner side face of the tire mold. And the positioning and grinding mechanism comprises positioning pieces for positioning the edges of the pattern tables and second grinders for grinding the outer side faces between the adjacent pattern tables, full-automatic and high-precision grinding of the tire mold is achieved, and adaptive grinding of the outer side faces between the pattern tables is achieved through the positioning and grinding mechanism; and rapid grinding of the continuous curved surface is achieved through the displacement grinding mechanism, and the grinding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mold grinding, and specifically refers to a grinding device for tire mold production. Background Art

[0002] As a key component in tire production, the surface accuracy of a tire mold directly affects the pattern quality and forming effect of the tire. To increase the friction with the ground, patterns are added to the tire surface, and the corresponding tire mold has pattern bosses. The pattern bosses divide the outer side of the tire mold into multiple sides. The complex texture structure inside the tire mold makes the grinding work complicated. The traditional tire mold grinding process mainly relies on manual operation. The curved surface and pattern structure of the mold are complex, and manual grinding will affect the grinding consistency. The rigid clamping device for fixing the tire mold is likely to cause surface damage to the mold and is difficult to adapt to the rapid switching of different specifications of molds. A manipulator with multiple degrees of freedom can be used for grinding. Although the grinding accuracy is high, the grinding speed is slow, and different grinding heads need to be replaced during the grinding process, resulting in high costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a grinding device for tire mold production.

[0004] To solve the above technical problem, the technical solution provided by the present invention is: a grinding device for tire mold production, including a base. A processing disk for placing the tire mold is rotatably provided on the base, and a positioning mechanism is provided at the center of the axis of the processing disk. A rotating mechanism for driving the processing disk to rotate is provided inside the base. The rotating mechanism includes a rotating disk that rotates inside the base. The rotating disk drives the processing disk to rotate, and the processing disk has a rotational movement relative to the rotating disk. Two moving mechanisms are provided on the base. Each moving mechanism includes a second motor, a rotating cylinder, a lifting arm, and a working arm. The second motor drives the rotating cylinder to rotate on the base, and the lifting arm moves up and down inside the rotating cylinder. A variable-position grinding mechanism and a positioning grinding mechanism are respectively provided on the two working arms. The variable-position grinding mechanism includes a grinder for grinding the bottom surface and inner side surface of the tire mold. The positioning grinding mechanism includes a positioning member for positioning the edge of the pattern platform and a grinder for grinding the outer side surface between adjacent pattern platforms.

[0005] As an improvement: The positioning grinding mechanism further includes two adjusting arms. A positioning disk is provided at the end of the working arm of the moving mechanism corresponding to the positioning grinding mechanism. The two adjusting arms are hinged to the center of the axis of the positioning disk. The distances between the two adjusting arms and the working arm are equal. A moving platform is movably provided on the adjusting arms. A connecting rod is provided at the bottom of the moving platform. The bottoms of the two connecting rods are respectively connected to the positioning member and the grinder.

[0006] As an improvement: The positioning and grinding mechanism further includes an adjustment table slidably arranged on the working arm. One side of the moving table is hinged with an adjustment rod, and both adjustment rods are slidably matched with the bottom groove of the adjustment table. A toothed column is rotatably arranged in the bottom groove of the adjustment table, and racks meshing with the toothed column are arranged on both adjustment rods.

[0007] As an improvement: The positioning member includes an installation table. Two positioning wheels are rotatably arranged at the front end of the installation table. The positioning wheels are in rolling cooperation with the side of the pattern table. A ball table two is also rotatably arranged at the front end of the installation table. The ball table two is in rolling cooperation with the outer side. The grinding device two includes a grinding head two driven by a motor. The maximum distance between the outer edges of the two positioning wheels is equal to the diameter of the grinding head two.

[0008] As an improvement: A locking table is slidably arranged on the working arm. The locking table is fixed on the working arm by a tightening bolt. A detachable support rod is installed between the adjustment arm above the positioning member and the locking table.

[0009] As an improvement: A first annular groove is arranged at the top of the rotating disk. A plurality of fixing tables are evenly arranged in the first annular groove. Springs are arranged on both sides of the fixing table. A plurality of driving tables are evenly arranged at the bottom of the processing disk. The driving tables extend into the first annular groove and are connected to the springs on both sides.

[0010] As an improvement: The rotating mechanism further includes a locking mechanism, which realizes the conversion between the flexible connection and the rigid connection of the rotating disk and the processing disk.

[0011] As an improvement: The positioning mechanism includes a second cylinder, a lifting rod, a transmission rod and an inner support table. The second cylinder is fixed in the base. The lifting rod is slidably arranged at the axial through hole of the processing disk. The output end of the second cylinder is rotatably connected to the lifting rod. A plurality of inner support tables are slidably arranged along the radial direction in the top groove of the processing disk. Both ends of the transmission rod are respectively hinged to the top of the lifting rod and the inner support table. A positioning hole is arranged at the top of the lifting rod. A positioning shaft inserted and matched with the positioning hole is arranged at the bottom of the positioning disk.

[0012] As an improvement: The variable-position grinding mechanism further includes a moving arm moving on the working arm. The grinding device one is hinged to the bottom of the moving arm. A third cylinder for driving the grinding device one to rotate is arranged on the moving arm.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: The present invention realizes the full automation and high-precision grinding of tire molds. The outer side between the pattern tables is adaptively ground through the positioning and grinding mechanism, and the continuous curved surface is quickly ground through the variable-position grinding mechanism, improving the grinding efficiency of the tire mold. Specifically: 1. The springs of the rotating mechanism connect the processing disk and the rotating disk, allowing the processing disk to finely adjust the angle during grinding, so that the pattern table always closely adheres to the positioning wheel. The locking mechanism quickly fixes the processing disk through the insertion post, switches the grinding mode, and adapts to the different grinding methods of the positioning and grinding mechanism and the variable-position grinding mechanism; 2. The positioning and grinding mechanism is an adjustable structure, which can adapt to tire molds of different sizes and different pattern spacings, and can also adapt to different pattern forms. The grinding route is guided by the positioning part to grind the side and outer side of the pattern platform, with strong adaptability. 3. There are two transmission forms between the processing disk and the rotating disk, which are switched by the locking mechanism. When in flexible connection, the processing disk can rotate a certain angle on the rotating disk and cooperate with the positioning and grinding mechanism to achieve precise positioning grinding. When in rigid connection, it cooperates with the displacement grinding mechanism to achieve rapid displacement grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention.

[0015] Figure 2 is a schematic diagram of the main structure of the present invention.

[0016] Figure 3 is an exploded view of the main structure of the present invention.

[0017] Figure 4 is a schematic structural diagram of the processing disk, rotating mechanism and positioning mechanism of the present invention.

[0018] Figure 5 is an exploded view of the processing disk, rotating mechanism and positioning mechanism of the present invention.

[0019] Figure 6 is a cross-sectional view of the processing disk, rotating mechanism and positioning mechanism of the present invention.

[0020] Figure 7 is a schematic structural diagram of the processing disk of the present invention.

[0021] Figure 8 is a cross-sectional view of the rotating mechanism of the present invention.

[0022] Figure 9 is an exploded view of the locking mechanism of the present invention.

[0023] Figure 10 is a schematic structural diagram of the moving mechanism and the displacement grinding mechanism of the present invention.

[0024] Figure 11 is an exploded view at the moving arm of the present invention.

[0025] Figure 12 is a schematic structural diagram of the moving mechanism and the positioning and grinding mechanism of the present invention.

[0026] Figure 13 is a schematic structural diagram of the positioning and grinding mechanism of the present invention.

[0027] Figure 14 is a schematic diagram of the angle of the positioning and grinding mechanism of the present invention.

[0028] Figure 15 It is a dimensional relationship diagram between the second grinding head and the positioning wheel of the present invention.

[0029] Figure 16 It is a schematic structural diagram of a tire mold.

[0030] As shown in the figure: 0, tire mold; 01, outer side; 02, tread platform; 03, bottom surface; 04, inner side; 1, base; 2, processing disk; 3, rotating mechanism; 4, positioning mechanism; 5, moving mechanism; 6, displacement grinding mechanism; 7, positioning grinding mechanism; 21, driving platform; 22, first locking hole; 31, first motor; 311, gear; 32, rotating disk; 321, tooth ring; 322, first annular groove; 323, fixed platform; 324, second locking hole; 325, spring; 326, second annular groove; 33, locking mechanism; 331, first cylinder; 332, pushing platform; 333, first spherical platform; 334, annular platform; 335, inserting post; 41, second cylinder; 42, lifting rod; 43, transmission rod; 44, inner supporting platform; 45, positioning hole; 51, second motor; 52, rotating cylinder; 53, lifting arm; 54, working arm; 55, positioning disk; 56, positioning shaft; 61, third motor; 62, threaded rod; 63, moving arm; 64, first grinder; 641, first grinding head; 65, fixed rotating frame; 651, rotating arm; 66, third cylinder; 71, adjusting arm; 72, moving table; 73, adjusting table; 731, tooth column; 74, adjusting rod; 741, rack; 75, connecting rod; 76, positioning part; 761, mounting table; 762, positioning wheel; 763, second spherical platform; 77, second grinder; 771, second grinding head; 78, locking position table; 79, support rod. Specific embodiments

[0031] The following further elaborates on the present invention in detail with reference to the accompanying drawings.

[0032] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 3 As shown, to solve the above technical problems, the technical solution provided by the present invention is: a grinding device for tire mold production, including a base 1, a processing disk 2 for placing a tire mold 0 is rotatably provided on the base 1, a positioning mechanism 4 is provided at the center of the axis of the processing disk 2, a rotating mechanism 3 for driving the processing disk 2 to rotate is provided inside the base 1, the rotating disk 32 drives the processing disk 2 to rotate and the processing disk 2 has a rotational movement amount relative to the rotating disk 32, two moving mechanisms 5 are provided on the base 1, a displacement grinding mechanism 6 and a positioning grinding mechanism 7 are provided on the moving mechanisms 5, the displacement grinding mechanism 6 includes a first grinder 64 for grinding the bottom surface 03 and the inner side 04 of the tire mold 0, and the positioning grinding mechanism 7 includes a positioning part 76 for positioning the edge of the tread platform 02 and a second grinder 77 for grinding the outer side 01 between adjacent tread platforms 02.

[0033] Combined with the attached Figure 1 and the attached Figure 3 As shown, the moving mechanism 5 includes a second motor 51, a rotating cylinder 52, a lifting arm 53 and a working arm 54. The second motor 51 drives the rotating cylinder 52 to rotate on the base 1. The lifting arm 53 moves up and down inside the rotating cylinder 52. The lifting arm 53 rotates with the rotating cylinder 52. A cylinder for moving the lifting arm 53 is provided inside the rotating cylinder 52. The working arm 54 is arranged outside the lifting arm 53. The displacement grinding mechanism 6 and the positioning grinding mechanism 7 are located on two working arms 54.

[0034] Working principle of the moving mechanism 5: After the second motor 51 is started, it drives the rotating cylinder 52 to rotate around the axis of the base 1, thereby driving the internal lifting arm 53 and the external working arm 54 to rotate synchronously, realizing the azimuth adjustment in the horizontal direction. The cylinder inside the rotating cylinder 52 pushes the lifting arm 53 to move vertically inside the rotating cylinder, thereby adjusting the height of the working arm 54 to adapt to the grinding requirements at different positions. The lifting and rotating movements of the lifting arm 53 are combined, so that the displacement grinding mechanism 6 and the positioning grinding mechanism 7 fixed on the working arm 54 can reach the target position flexibly. After the grinding work is completed, the working arm 54 rotates away from above the tire mold 0, facilitating the removal of the tire mold 0.

[0035] Combined with the attached Figure 2 and the attached Figure 12 and the attached Figure 13 and the attached Figure 14 As shown, the positioning grinding mechanism 7 further includes two adjusting arms 71. A positioning disc 55 is provided at the end of the working arm 54 of the moving mechanism 5 corresponding to the positioning grinding mechanism 7. The two adjusting arms 71 are axially hinged to the positioning disc 55. The distances between the two adjusting arms 71 and the working arm 54 are equal. A moving table 72 is movably provided on the adjusting arm 71. The moving table 72 moves radially along the axis of the tire mold 0 on the adjusting arm 71. A connecting rod 75 is provided at the bottom of the moving table 72. The bottoms of the two connecting rods 75 are respectively connected to a positioning member 76 and a second grinder 77. The positioning grinding mechanism 7 further includes an adjusting table 73 slidably arranged on the working arm 54. One side of the moving table 72 is hinged with an adjusting rod 74. The two adjusting rods 74 are both slidably matched with the bottom groove of the adjusting table 73. The adjusting rod 74 is perpendicular to the working arm 54. A tooth column 731 is rotatably provided in the bottom groove of the adjusting table 73. Rack teeth 741 meshing with the tooth column 731 are provided on both adjusting rods 74. A locking table 78 is slidably arranged on the working arm 54. The locking table 78 is fixed to the working arm 54 by a tightening bolt. A detachable support rod 79 is installed between the adjusting arm 71 above the positioning member 76 and the locking table 78.

[0036] Working principle of the positioning and grinding mechanism 7: The positioning and grinding mechanism 7 realizes the radial movement and synchronous adjustment of the second grinder 77 and the positioning member 76 through the double adjustment arms 71 and the linkage adjustment system. The moving table 72 is installed on the adjustment arm 71 and can move radially along the tire mold 0, so as to adjust the positions of the second grinder 77 and the positioning member 76. The adjustment table 73 is slidably installed on the working arm 54 and can move along the working arm, cooperating with the moving table 72 to change the reference position of the adjustment arm 71. During adjustment, according to the size of the tire mold 0, the position of the positioning member 76 is determined, the adjustment table 73 is pushed and the angle of the adjustment arm 71 is rotated to move the positioning member 76 to the target position. During this process, the tooth column 731 meshes with the racks 741 on the two adjustment rods 74, so that the two adjustment rods 74 move the same distance. Since the adjustment rods 74 are perpendicular to the working arm 54, the connection lines of the axis of the tire mold 0, the two adjustment rods 74 and the hinge axis of the moving table 72 form an isosceles triangle structure, and the distances between the two moving tables 72 and the axis of the tire mold 0 are equal, so that the distances between the working ends of the second grinder 77 and the positioning member 76 and the tire mold 0 are equal. When the positioning point of the positioning member 76 is close to the outer side 01, the working end of the second grinder 77 is close to the outer side 01. After the adjustment is completed, first tighten the tightening bolt of the adjustment table 73 to fix the position of the adjustment table 73, and then adjust the position of the locking table 78. Install the support rod 79 on the adjustment arm 71 above the locking table 78 and the positioning member 76, and then tighten the tightening bolt of the locking table 78 to fix the position of the locking table 78. The support rod 79 provides a supporting force for the adjustment arm 71. At this time, the adjustment of the positioning and grinding mechanism 7 is completed and the overall structure is fixed.

[0037] Combined with the attached Figure 13 , the attached Figure 15 and the attached Figure 16 As shown, the positioning member 76 includes a mounting table 761. Two positioning wheels 762 are rotatably provided at the front end of the mounting table 761. The positioning wheels 762 are in rolling cooperation with the side of the pattern table 02. A second ball table 763 is also rotatably provided at the front end of the mounting table 761. The second ball table 763 is in rolling cooperation with the outer side 01. The second grinder 77 includes a grinding head two 771 driven by a motor. The maximum distance between the outer edges of the two positioning wheels 762 is equal to the diameter of the grinding head two 771.

[0038] Cooperating working principle of the positioning member 76 and the second grinding device 77: After the second ball table 763 contacts the outer side surface 01, the front end of the second grinding head 771 also contacts the outer side surface 01 to grind the outer side surface 01. One of the positioning wheels 762 contacts the side surface of the pattern table 02, and the side of the second grinding head 771 contacts the side surface of the other pattern table 02. During grinding, the moving mechanism 5 drives the positioning and grinding mechanism 7 to move up and down, and the rotating mechanism 3 drives the processing disk 2, so that the side surface of the pattern table 02 applies a certain force to the positioning wheel 762 to keep the positioning wheel 762 in close contact with the pattern table 02. During the up and down movement of the positioning wheel 762, the tire mold 0 rotates adaptively with the processing disk 2, so that the second grinding head 771 grinds the side surface and the outer side surface 01 of the pattern table 02 along the shape of the pattern table 02. After grinding is completed, the adjacent pattern table 02 applies a force in the opposite direction to the other positioning wheel 762 for grinding, completing the grinding of one outer side surface 01 and the side surfaces of the two pattern tables 02 on both sides. Subsequently, the positioning and grinding mechanism 7 is lifted. After the tire mold 0 rotates by a certain angle, the positioning and grinding mechanism 7 descends to grind another set of outer side surface 01 and the side surfaces of the two pattern tables 02 on both sides.

[0039] Combined with the attached Figure 1 , the attached Figure 4 , the attached Figure 5 , the attached Figure 7 and the attached Figure 8 As shown in

[0040] Working principle of the rotating mechanism 3: The rotating mechanism 3 realizes the smooth rotation of the processing disk 2 through motor drive + elastic buffer structure, and has a certain flexible adjustment ability to meet the positioning and grinding requirements of the tire mold 0. After the motor 31 is started, the gear 311 at its output end meshes with the toothed ring 321 on the outer side of the rotating disk 32, driving the rotating disk 32 to rotate inside the base 1. When cooperating with the positioning and grinding mechanism 7 for grinding work, the rotating disk 32 and the processing disk 2 are flexibly connected by a spring 325, and the processing disk 2 can rotate a certain angle on the rotating disk 32. After the side surface of the tread 02 of the tire mold 0 contacts the positioning wheel 762, the rotating disk 32 rotates a certain angle. At this time, the processing disk 2 does not rotate due to the blockage of the tread 02, and the spring 325 on one side of the driving platform 21 is compressed, causing the processing disk 2 to have a tendency to rotate. During the up and down movement of the positioning wheel 762, the spring 325 pushes the processing disk 2, making the tread 02 closely adhere to the positioning wheel 762. When cooperating with the variable-position grinding mechanism 6 for grinding, the rotating disk 32 and the processing disk 2 are locked through the rotating mechanism 3, and the processing disk 2 rotates following the rotating disk 32. The bottom surface 03 and the inner side surface 04 of the tire mold 0 are ground by the grinder 64.

[0041] Combined with the attached Figure 6 and the attached Figure 9 As shown, the rotating mechanism 3 further includes a locking mechanism 33. The locking mechanism 33 includes a cylinder 331 and a ring platform 334. The cylinder 331 is fixed inside the base 1. A push platform 332 is provided at the output end of the cylinder 331. A ball platform 333 is rotatably provided at the top of the push platform 332. A second ring groove 326 is provided at the bottom of the rotating disk 32. The ring platform 334 is arranged in the second ring groove 326. The ball platform 333 passes through the through hole at the bottom of the second ring groove 326 and is in rolling cooperation with the bottom of the ring platform 334. Locking holes 22 and 324 are respectively provided at the bottoms of the processing disk 2 and the fixed platform 323. An insertion post 335 is provided at the top of the ring platform 334. The insertion post 335 is located in the locking hole 324 and is in plug-in cooperation with the locking hole 22.

[0042] Working principle of the locking mechanism 33: The locking mechanism 33 is used to fix the position of the processing disk 2 when needed to prevent it from shifting during the grinding process, while not affecting the freedom of movement during normal rotation. In the unlocked state, the cylinder 331 is in the contracted state, driving the push platform 332 to move downward, causing the ball platform 333 to be separated from the ring platform 334 in close contact. The ring platform 334 moves slightly downward due to gravity, and the insertion post 335 at its top exits from the locking hole 22 of the processing disk 2, but still remains in the locking hole 324 of the fixed platform 323. At this time, the processing disk 2 and the rotating disk 32 are in a flexible connection state. In the locked state, the cylinder 331 extends, pushing the push platform 332 upward, causing the ball platform 333 to push up the ring platform 334. The ring platform 334 rises along the second ring groove 326, and the insertion post 335 at its top is inserted into both the locking hole 22 and the locking hole 324 at the same time. At this time, the processing disk 2 and the rotating disk 32 are in a rigid connection state.

[0043] Combined with the attached Figure 6 and the attached Figure 12 As shown, the positioning mechanism 4 includes a second cylinder 41, a lifting rod 42, a transmission rod 43 and an inner support table 44. The second cylinder 41 is fixed inside the base 1. The lifting rod 42 is slidably arranged at the axial through hole of the processing disk 2. The output end of the second cylinder 41 is rotatably connected to the lifting rod 42. A plurality of inner support tables 44 are slidably arranged in the top groove of the processing disk 2 along the radial direction. Both ends of the transmission rod 43 are respectively hinged to the top of the lifting rod 42 and the inner support table 44. A positioning hole 45 is provided at the top of the lifting rod 42. A positioning shaft 56 that is inserted and matched with the positioning hole 45 is provided at the bottom of the positioning disk 55.

[0044] Working principle of the positioning mechanism 4: The positioning mechanism 4 is mainly used for the rapid positioning and fixing of the tire mold 0. It ensures that the mold does not shift during the grinding process through inner support clamping. At the same time, it is linked with the positioning and grinding mechanism 7 to achieve precise alignment. When the second cylinder 41 is started, it pushes the lifting rod 42 to move upward along the axial through hole of the processing disk 2. The lifting rod 42 drives a plurality of inner support tables 44 to expand outward along the radial groove at the top of the processing disk 2 through the transmission rod 43, and presses against the inner wall of the tire mold 0 to achieve inner support fixing. The positioning hole 45 at the top of the lifting rod 42 is inserted and matched with the positioning shaft 56 at the bottom of the positioning disk 55, so that the positioning and grinding mechanism 7 is accurately centered with the processing disk 2, and the rotation axis of the adjusting arm 71 coincides with the axis of the tire mold 0, ensuring that the working axis of the second grinder 77 is perpendicular to the outer side 01.

[0045] Combined with the attached Figure 10 and the attached Figure 11 As shown, the variable-position grinding mechanism 6 further includes a third motor 61, a threaded rod 62 and a moving arm 63. The third motor 61 is fixed below the working arm 54. The third motor 61 drives the threaded rod 62 to rotate at the bottom of the working arm 54. The moving arm 63 is slidably arranged below the working arm 54. A threaded hole that cooperates with the threaded rod 62 is provided on the moving arm 63. The first grinder 64 includes a grinding head 641 driven by a motor. A fixed rotating frame 65 is hinged at the bottom of the moving arm 63. The motor of the first grinder 64 is fixed on the fixed rotating frame 65. A rotating arm 651 is provided on one side of the fixed rotating frame 65. A third cylinder 66 is hinged on the side of the moving arm 63. The output end of the third cylinder 66 is hinged to the rotating arm 651.

[0046] Working principle of the variable-position grinding mechanism 6: The variable-position grinding mechanism 6 is mainly used for multi-angle variable-position grinding of the tire mold 0. The three-dimensional position adjustment and angle deflection of the grinding head 641 are realized through motor drive + cylinder adjustment to meet the processing requirements of complex curved surfaces. When the motor 61 starts, it drives the threaded rod 62 to rotate. The moving arm 63 meshes with the threaded rod 62 through the threaded hole at the bottom and slides horizontally along the bottom of the working arm 54 when the threaded rod 62 rotates, adjusting the lateral position of the grinder 64. The cylinder 66 pushes the rotating arm 651 to swing around the hinge point. Since the rotating arm 651 is rigidly connected to the fixed rotating frame 65 and the motor of the grinder 64 is fixed on the fixed rotating frame 65, the movement of the cylinder 66 will drive the grinding head 641 to deflect up and down around the hinge axis, changing the grinding angle, so as to adapt to the grinding of the continuous curved surface of the tire mold 0.

[0047] In the specific implementation of the present invention, the tire mold 0 is placed on the processing disk 2. The positioning mechanism 4 is used to make the rotation axis of the tire mold 0 coincide with the rotation axis of the processing disk 2. Subsequently, the moving mechanism 5 moves the positioning and grinding mechanism 7 above the tire mold 0 and inserts the positioning shaft 56 into the positioning hole 45, adjusting the positioning and grinding mechanism 7 to adapt to the tire mold 0 on the processing disk 2. The processing disk 2 is flexibly connected to the rotating disk 32 of the rotating mechanism 3. The processing disk 2 is pushed to rotate on the rotating disk 32 by the positioning member 76, and the outer surface 01 is ground by the grinder 77. The grinding position of the grinder 77 is changed by the rotation of the rotating disk 32. After the outer surface 01 is ground, the processing disk 2 and the rotating disk 32 are locked by the locking mechanism 33. Subsequently, the moving mechanism 5 moves the variable-position grinding mechanism 6 above the tire mold 0, and the bottom surface 03 and the inner surface 04 are ground by the variable-position grinding mechanism 6 with adjustable grinding position and angle. The rotating disk 32 drives the tire mold 0 to rotate through the processing disk 2, and rotates and grinds in cooperation with the variable-position grinding mechanism 6.

[0048] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the spirit of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A grinding device for tire mold production, comprising a base (1), a processing disc (2) for placing the tire mold (0) being rotatably provided on the base (1), a positioning mechanism (4) being provided at the axis of the processing disc (2), and characterized in that: A rotating mechanism (3) for driving the processing disk (2) to rotate is provided inside the base (1), the rotating mechanism (3) comprising a rotating disk (32) rotating inside the base (1), the rotating disk (32) driving the processing disk (2) to rotate, and the processing disk (2) has a rotational movement relative to the rotating disk (32); Two moving mechanisms (5) are provided on the base (1). The moving mechanisms (5) include a second motor (51), a rotating drum (52), a lifting arm (53) and a working arm (54). The second motor (51) drives the rotating drum (52) to rotate on the base (1). The lifting arm (53) moves up and down in the rotating drum (52). The two working arms (54) are respectively provided with a displacement grinding mechanism (6) and a positioning grinding mechanism (7). The displacement grinding mechanism (6) includes a first grinder (64) for grinding the bottom surface (03) and the inner side surface (04) of the tire mold (0). The positioning grinding mechanism (7) includes a positioning member (76) for positioning the edge of the pattern platform (02) and a second grinder (77) for grinding the outer side surface (01) between adjacent pattern platforms (02).

2. A tire mold production grinding device according to claim 1, characterized in that: The positioning and polishing mechanism (7) further comprises two adjusting arms (71), a positioning plate (55) is provided at the end of the working arm (54) of the moving mechanism (5) corresponding to the positioning and polishing mechanism (7), the two adjusting arms (71) are axially hinged to the positioning plate (55), the two adjusting arms (71) are equidistant from the working arm (54), a moving platform (72) is movably provided on the adjusting arm (71), a connecting rod (75) is provided at the bottom of the moving platform (72), and the bottoms of the two connecting rods (75) are respectively connected to a positioning member (76) and a second polisher (77).

3. A tire mold production grinding device according to claim 2, characterized in that: The positioning and polishing mechanism (7) further comprises an adjustment platform (73) slidably arranged on the working arm (54); an adjustment rod (74) is hingedly arranged on one side of the movable platform (72); the two adjustment rods (74) are both slidably engaged with the grooves at the bottom of the adjustment platform (73); a tooth column (731) is rotatably arranged in the groove at the bottom of the adjustment platform (73); and the two adjustment rods (74) are both provided with a rack (741) meshing with the tooth column (731).

4. A tire mold production grinding device according to claim 2, characterized in that: The positioning member (76) comprises a mounting platform (761), the front end of which is rotatably provided with two positioning wheels (762), the positioning wheels (762) rollingly cooperating with the side of the pattern platform (02), the front end of which is also rotatably provided with a second ball platform (763), the second ball platform (763) rollingly cooperating with the outer side surface (01), the second grinder (77) comprising a second grinding head (771) driven by a motor, the maximum distance between the outer edges of the two positioning wheels (762) being equal to the diameter of the second grinding head (771).

5. A tire mold production grinding device according to claim 4, characterized in that: A locking platform (78) is slidably provided on the working arm (54), and the locking platform (78) is fixed to the working arm (54) by tightening bolts. A detachable support rod (79) is installed on the adjustment arm (71) above the positioning member (76) and the locking platform (78).

6. A tire mold production grinding device according to claim 1, characterized in that: The top of the rotating disk (32) is provided with an annular groove (322), a plurality of fixed platforms (323) are evenly arranged in the annular groove (322), springs (325) are arranged on both sides of the fixed platforms (323), and a plurality of driving platforms (21) are evenly arranged at the bottom of the processing disk (2), the driving platforms (21) extend into the annular groove (322) and are connected to the springs (325) on both sides.

7. A tire mold production grinding device according to claim 6, characterized in that: The rotating mechanism (3) further comprises a locking mechanism (33), wherein the locking mechanism (33) realizes the conversion between the flexible connection and the rigid connection between the rotating disk (32) and the processing disk (2).

8. The tire mold production grinding device according to claim 2, characterized in that: The positioning mechanism (4) comprises a second cylinder (41), a lifting rod (42), a transmission rod (43) and an inner support platform (44). The second cylinder (41) is fixed in the base (1). The lifting rod (42) is slidably arranged at the axial through hole of the processing disk (2). The output end of the second cylinder (41) is rotatably connected to the lifting rod (42). A plurality of inner support platforms (44) are radially slidably arranged in the groove at the top of the processing disk (2). The two ends of the transmission rod (43) are respectively hinged to the top of the lifting rod (42) and the inner support platform (44). A positioning hole (45) is provided at the top of the lifting rod (42). A positioning shaft (56) pluggable with the positioning hole (45) is provided at the bottom of the positioning disk (55).

9. A tire mold production grinding device according to claim 1, characterized in that: The displacement grinding mechanism (6) further comprises a movable arm (63) that moves on the working arm (54); a grinder 1 (64) is hingedly arranged at the bottom of the movable arm (63); and a cylinder 3 (66) that drives the grinder 1 (64) to rotate is arranged on the movable arm (63).

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