Grinding device for tire mold

Abstract

The utility model relates to a tire mould polishing device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a placing frame, the top of the placing frame is fixedly connected with a limiting column, a plurality of pattern blocks are all placed on the top of the placing frame, and the inner walls of the pattern blocks are attached to the peripheral face of the limiting column. A plurality of electric push rods are fixedly connected to the top of the bottom plate, the output ends of the electric push rods are jointly and fixedly connected with a fixing ring, and the fixing ring is located above the limiting column. The utility model relates to the technical field of tire molds. After the pattern blocks are well placed, the electric push rod drives the fixing ring to move downwards to the lower half portions of the outer surfaces of the pattern blocks, then the driving piece works to polish the upper half portions of the peripheral faces of the pattern blocks, then the electric push rod returns to the original position, and a worker turns over all the pattern blocks up and down; and then the electric push rod is controlled to move to the lower half part of the pattern block to polish the unpolished part of the peripheral surface of the pattern block, so that the polishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire molds, in particular to a grinding device for tire molds. Background Technique

[0002] Tire molds are used for vulcanizing and molding various tires. Tire molds are divided into split molds and two-half molds. After the tire molds are produced, their surface patterns are rough and do not meet the use standards. Usually, a grinding device is used to grind and polish the surface patterns of the tire molds, and the particles and burrs on the surface patterns of the tire molds are ground smooth to meet the mold use standards.

[0003] The side wall of the split mold of the tire is formed into a ring by splicing a plurality of tread blocks. Since the split mold is not a whole, when grinding the split mold, it is necessary for the staff to grind each tread block in turn. Therefore, it is necessary to repeat the feeding, fixing, grinding and taking of the tread blocks many times, which is a waste of time and reduces the processing efficiency of the tire mold. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a grinding device for tire molds, so as to solve the technical problems mentioned in the above background technique.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A grinding device for tire molds includes a bottom plate. A placing rack is fixedly connected to the top of the bottom plate. A limiting column is fixedly connected to the top of the placing rack. A plurality of tread blocks are all placed on the top of the placing rack, and the inner wall of the tread block is in contact with the outer peripheral surface of the limiting column. A plurality of electric push rods are fixedly connected to the top of the bottom plate. A fixing ring is fixedly connected to the output ends of the plurality of electric push rods. The fixing ring is located above the limiting column. A rotating ring is rotatably connected to the outer peripheral surface of the fixing ring. A rotating part is arranged between the rotating ring and the fixing ring. A grinding part is arranged above the rotating ring.

[0007] Furthermore, the grinding part includes a connecting rod fixedly connected to the outer peripheral surface of the rotating ring. The connecting rod is arranged in a U shape, and one end of the connecting rod far away from the rotating ring is fixedly connected with a linkage frame. The linkage frame is located above the fixing ring and is arranged in a U shape. A grinding cylinder is arranged inside the linkage frame.

[0008] Furthermore, the rotating part includes a rotating rod rotatably connected to the top of the rotating ring. The rotating rod rotates through the connecting rod. A driving part is arranged at the top of the connecting rod. The driving part is used to drive the rotating rod to rotate. A transmission gear is fixedly sleeved on the outer peripheral surface of the rotating rod. An external gear ring is fixedly sleeved on the outer peripheral surface of the fixing ring. The transmission gear meshes with the external gear ring.

[0009] Furthermore, a driven rod is vertically rotatably connected in the linkage frame, the grinding cylinder is fixedly sleeved on the outer peripheral side of the driven rod, the upper half of the driven rod extends above the linkage frame, and the driven rod is connected to the rotating rod through a belt transmission.

[0010] Furthermore, the bottom surface of the linkage frame is in contact with the top surface of the fixing ring.

[0011] Furthermore, the driving member includes a motor fixedly connected to the top of the connecting rod, the output end of the motor is connected to the driving gear, the outer peripheral surface of the rotating rod is fixedly sleeved with a driven gear, and the driving gear is meshed with the driven gear.

[0012] In summary, the present invention has at least one of the following beneficial technical effects:

[0013] 1. This tire mold grinding device, after the tread blocks are placed, the electric push rod drives the fixed ring to move downward to the lower half of the outer surface of the tread block. The driving member then works to grind the upper half of the outer circumference of several tread blocks. The electric push rod then returns to its original position. The staff flips each tread block up and down, and then controls the electric push rod to move to the lower half of the tread block to grind the previously unpolished portion of the outer circumference of the tread block, thereby improving grinding efficiency.

[0014] 2. In this tire mold grinding device, the driving member drives the grinding cylinder to revolve along the center of the limiting column while also driving the grinding cylinder to rotate, so that the outer surface of the grinding cylinder is evenly worn, thereby increasing the service life of the grinding cylinder and improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 is a three-dimensional diagram of a tire mold grinding device according to this embodiment;

[0017] Figure 2 This is a three-dimensional diagram of the upper half of a tire mold grinding device according to this embodiment (without tread blocks);

[0018] Figure 3 It is a partial three-dimensional diagram of a tire mold grinding device according to this embodiment.

[0019] In the figure, 1. base plate; 2. placement rack; 3. limit column; 4. electric push rod; 5. fixed ring; 6. swivel; 7. rotating part; 71. rotating rod; 72. driving part; 73. transmission gear; 74. outer ring gear; 8. grinding part; 81. connecting rod; 82. linkage rack; 83. grinding cylinder; 9. driven rod; 10. pattern block. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings.

[0021] Example:

[0022] Reference Figures 1 to 3 The utility model discloses a grinding device for a tire mold, including a base plate 1, a placement rack 2 is fixedly connected to the top of the base plate 1, a limiting column 3 is fixedly connected to the top of the placement rack 2, a plurality of pattern blocks 10 are placed on the top of the placement rack 2, and the inner wall of the pattern block 10 is in contact with the outer circumference of the limiting column 3, a plurality of electric push rods 4 are fixedly connected to the top of the base plate 1, and a fixing ring 5 is fixedly connected to the output ends of the plurality of electric push rods 4. The fixing ring 5 is located above the limiting column 3, and a swivel 6 is rotatably connected to the outer circumference of the fixing ring 5. A rotating part 7 is provided between the swivel 6 and the fixed ring 5, and a grinding part 8 is provided above the swivel 6.

[0023] In this embodiment, two adjacent pattern blocks 10 are fitted together, and a plurality of pattern blocks 10 form a mold ring (such as Figure 1 As shown in FIG, the diameter of the placement rack 2 is equal to the diameter of the mold ring. In the initial state, the fixing ring 5 is located above the pattern block 10.

[0024] After several pattern blocks 10 are placed, the electric push rod 4 drives the fixed ring 5 to move downward, and the inner circumference of the fixed ring 5 fits with the outer circumference of the mold ring until the top surface of the fixed ring 5 moves to a position slightly below the mold ring. At this time, the fixed ring 5 limits the mold ring so that the mold ring will not shake during grinding, and the upper half of the mold ring is not covered by the fixed ring 5. The rotating part 7 and the grinding part 8 can grind the upper half of the outer circumference of the mold ring.

[0025] After the upper half of the mold ring is polished, the staff flips each pattern block 10 up and down, making the mold ring upside down, and the fixed ring 5 moves downward again to the lower half of the mold ring. Then the rotating part 7 and the polishing part 8 work to polish the current upper half of the mold ring (the part that has not been polished before), so that the outer peripheral surface of each pattern block 10 is fully polished.

[0026] In a further preferred embodiment of the present invention, Figure 3As shown, the grinding part 8 includes a connecting rod 81 fixedly connected to the outer peripheral surface of the rotating ring 6. The connecting rod 81 is arranged in a U-shape, and a linkage frame 82 is fixedly connected to the end of the connecting rod 81 away from the rotating ring 6. The linkage frame 82 is located above the fixed ring 5 and is arranged in a U-shape. A grinding cylinder 83 is arranged inside the linkage frame 82.

[0027] In this embodiment, when the grinding cylinder 83 moves downward, its outer wall fits with the outer wall of the pattern block 10. Therefore, when the grinding cylinder 83 rotates following the rotating ring 6, the outer peripheral surface of the mold ring can be ground.

[0028] In a further preferred embodiment of the present utility model, as Figure 3 shown, the rotating part 7 includes a rotating rod 71 rotatably connected to the top of the rotating ring 6. The rotating rod 71 rotatably passes through the connecting rod 81. A driving member 72 is arranged at the top of the connecting rod 81. The driving member 72 is used to drive the rotating rod 71 to rotate. A transmission gear 73 is fixedly sleeved on the outer peripheral surface of the rotating rod 71. An external gear ring 74 is fixedly sleeved on the outer peripheral surface of the fixed ring 5. The transmission gear 73 meshes with the external gear ring 74.

[0029] The driving member 72 includes a motor fixedly connected to the top of the connecting rod 81. The output end of the motor is drivingly connected with a driving gear. A driven gear is fixedly sleeved on the outer peripheral surface of the rotating rod 71. The driving gear meshes with the driven gear.

[0030] In this embodiment, when the motor works, it drives the driving gear to rotate. The driving gear drives the driven gear to rotate. The driven gear drives the rotating rod 71 to rotate. The rotating rod 71 drives the transmission gear 73 to rotate. The transmission gear 73 meshes with the fixed external gear ring 74. Therefore, the transmission gear 73 rotates while crawling along the outer surface of the external gear ring 74, so that the rotating ring 6 rotates. The rotating ring 6 drives the connecting rod 81, the linkage frame 82 and the grinding cylinder 83 to rotate. The grinding cylinder 83 rotates around the mold ring to grind the upper half of the outer peripheral surface of the mold ring.

[0031] In a further preferred embodiment of the present utility model, as Figure 3 shown, a driven rod 9 is vertically and rotatably connected inside the linkage frame 82. The grinding cylinder 83 is fixedly sleeved on the outer peripheral side of the driven rod 9. The upper half of the driven rod 9 extends above the linkage frame 82, and the driven rod 9 is drivingly connected with the rotating rod 71 through a belt.

[0032] In this embodiment, when the rotating rod 71 rotates, it drives the driven rod 9 to rotate through the belt. The driven rod 9 drives the grinding cylinder 83 to rotate self - rotatably, making the wear of the outer surface of the grinding cylinder �3 uniform, improving the service life of the grinding cylinder 83 and also improving the grinding effect.

[0033] In a further preferred embodiment of the present utility model, as Figure 3 shown, the bottom surface of the linkage frame 82 fits with the top surface of the fixed ring 5.

[0034] In this embodiment, the fixing ring 5 can support the linkage frame 82 to prevent the connecting rod 81 from tilting under the gravity of the linkage frame 82 .

[0035] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A tire mold grinding device, comprising a base plate (1), characterized in that: A placing rack (2) is fixedly connected to the top of the bottom plate (1). A limiting column (3) is fixedly connected to the top of the placing rack (2). A plurality of pattern blocks are placed on the top of the placing rack (2), and the inner wall of the pattern block is in contact with the outer peripheral surface of the limiting column (3). A plurality of electric push rods (4) are fixedly connected to the top of the bottom plate (1). A fixing ring (5) is fixedly connected to the output ends of the plurality of electric push rods (4). The fixing ring (5) is located above the limiting column (3). A rotating ring (6) is rotatably connected to the outer peripheral surface of the fixing ring (5). A rotating part (7) is arranged between the rotating ring (6) and the fixing ring (5). A grinding part (8) is arranged above the rotating ring (6).

2. A tire mold grinding device according to claim 1, characterized in that: The grinding part (8) includes a connecting rod (81) fixedly connected to the outer peripheral surface of the rotating ring (6). The connecting rod (81) is arranged in a U shape. One end of the connecting rod (81) far away from the rotating ring (6) is fixedly connected to a linkage frame (82). The linkage frame (82) is located above the fixing ring (5). The linkage frame (82) is arranged in a U shape. A grinding cylinder (83) is arranged in the linkage frame (82).

3. A tire mold grinding device according to claim 2, characterized in that: The rotating part (7) includes a rotating rod (71) rotatably connected to the top of the rotating ring (6). The rotating rod (71) rotatably passes through the connecting rod (81). A driving part (72) is arranged at the top of the connecting rod (81). The driving part (72) is used to drive the rotating rod (71) to rotate. A transmission gear (73) is fixedly sleeved on the outer peripheral surface of the rotating rod (71). An external gear ring (74) is fixedly sleeved on the outer peripheral surface of the fixing ring (5). The transmission gear (73) is meshed with the external gear ring (74).

4. A tire mold grinding device according to claim 3, characterized in that: A driven rod (9) is vertically and rotatably connected in the linkage frame (82). The grinding cylinder (83) is fixedly sleeved on the outer peripheral side of the driven rod (9). The upper half of the driven rod (9) extends above the linkage frame (82). The driven rod (9) is connected to the rotating rod (71) through a belt drive.

5. A tire mold grinding device according to claim 4, characterized in that: The bottom surface of the linkage frame (82) is in contact with the top surface of the fixing ring (5).

6. The tire mold grinding device according to claim 5, characterized in that: The driving part (72) includes a motor fixedly connected to the top of the connecting rod (81). The output end of the motor is connected to a driving gear through a transmission. A driven gear is fixedly sleeved on the outer peripheral surface of the rotating rod (71). The driving gear is meshed with the driven gear.

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