Tire building machine tire unloading position differential drive clamping device

Abstract

This invention discloses a tire forming machine tire unloading position difference driving clamping device, including tire blank clamping assemblies I and II disposed on a moving ring and a fixed ring, respectively. Tire blank clamping assembly I includes a double connecting rod and a clamping plate. The double connecting rod is hinged to the fixed ring, the inner end of the double connecting rod is hinged to the clamping plate, the outer end of the double connecting rod is hinged to one end of a double adjusting screw, and the other end of the double adjusting screw is hinged to a rod seat disposed on the moving ring. A sliding rod assembly is provided between adjacent clamping plates to maintain the roundness of all clamping plates. Tire blank clamping assembly II includes... The single connecting rod and clamping block are coaxially hinged to the fixed ring between the double connecting rods. The inner end of the single connecting rod passes through the hollow opening of the clamping plate and is hinged to the clamping block. The outer end of the single connecting rod is hinged to one end of the single adjusting screw, and the other end of the single adjusting screw is hinged to the rod seat. The resistance arm lengths of the double connecting rod and the single connecting rod are equal. The power arm II of the single connecting rod is shorter than the power arm I of the double connecting rod. When the moving ring rotates, the clamping plate and clamping block, which form a positional difference, respectively clamp the top of the M-type giant tire blank and the concave part in the middle of the top.

Description

Technical Field

[0001] This invention relates to a tire unloading clamping device for a tire forming machine, specifically a tire unloading position difference driven clamping device for a tire forming machine. Background Technology

[0002] The existing giant tire forming machine uses a set of circumferentially distributed clamping blocks to hold the top of the outer circle of the formed giant tire blank, and then flips it over to remove the tire blank.

[0003] The outer top of a traditional giant tire blank is relatively flat, making it simple and practical to use existing clamping and unloading methods.

[0004] With the development of tire molding technology, many tire manufacturers are designing giant tire blanks with an M-shaped outer circle instead of a flat one. This means that the top of the outer circle is concave inward. This significantly reduces the contact area between the tire removal clamps in traditional clamping devices and the top of the M-shaped giant tire blank. Due to insufficient friction, the giant tire blank cannot be held during flipping, causing it to fall off, damaging the giant tire blank and resulting in quality accidents. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a tire forming machine tire unloading position difference drive clamping device that holds the tire firmly and prevents it from falling.

[0006] The tire forming machine tire unloading position difference drive clamping device, which can solve the above-mentioned technical problems, includes a tire blank clamping mechanism based on a coaxial inner fixed ring and an outer moving ring, evenly distributed around the circumference. The difference is that each tire blank clamping mechanism includes tire blank clamping component I and tire blank clamping component II, wherein:

[0007] 1. The tire blank clamping assembly I includes a double connecting rod and a clamping plate. The double connecting rod is hinged to the fixed ring, the inner end of the double connecting rod is hinged to the clamping plate, the outer end of the double connecting rod is hinged to one end of the double adjusting screw, and the other end of the double adjusting screw is hinged to the rod seat provided on the moving ring. A sliding rod assembly is provided between adjacent clamping plates to maintain the roundness of all clamping plates.

[0008] 2. The tire blank clamping assembly II includes a single connecting rod and a clamping block. The single connecting rod is coaxially hinged to the fixed ring between the two connecting rods. The inner end of the single connecting rod passes through the hollow opening of the clamping plate and is hinged to the clamping block. The outer end of the single connecting rod is hinged to one end of a single adjusting screw. The other end of the single adjusting screw is hinged to a rod seat.

[0009] 3. The resistance arm I of the double linkage is the same length as the resistance arm II of the single linkage, and the power arm II of the single linkage is shorter than the power arm I of the double linkage.

[0010] Furthermore, one structure of the slide rod assembly includes a slide rod and a slide seat with a sliding hole. The two slide seats are respectively hinged to the adjacent ends of adjacent clamping plates. The slide rod is disposed between the adjacent slide seats and the two ends of the slide rod are respectively slidably engaged in the two sliding holes.

[0011] The beneficial effects of this invention are:

[0012] 1. The tire forming machine of the present invention has a simple and reliable structure for the tire unloading position difference drive clamping device. The moving ring can simultaneously drive two sets of tire blank clamping components to move to different roundness positions to form a position difference, so that the two sets of tire blank clamping components are clamped on different parts of the tire blank respectively.

[0013] 2. This invention allows for adjustment of the clamping position of the two sets of embryo clamping components according to the embryo diameter and by adjusting the screw. It is particularly suitable for clamping M-type giant embryos and is easy to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0015] Figure 2 for Figure 1 A schematic diagram of the embryo clamping mechanism in the implementation method.

[0016] Figure 3 for Figure 2 A schematic diagram of the structure of the mid-tire embryo clamping assembly I.

[0017] Figure 4 for Figure 2 A schematic diagram of the structure of the mid-tire embryo clamping assembly II.

[0018] Drawing number markings: 1. Fixed ring; 2. Moving ring; 3. Carcass clamping assembly I; 3-1. Double connecting rod; 3-2. Clamping plate; 4. Carcass clamping assembly II; 4-1. Single connecting rod; 4-2. Clamping block; 5. Double adjusting screw; 6. Single adjusting screw; 7. Rod seat; 8. Resistance arm I; 9. Resistance arm II; 10. Power arm II; 11. Power arm I; 12. Slide rod assembly; 12-1. Slide rod; 12-2. Slide seat; 13. Spike; 14. Clamping cylinder. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] The present invention relates to a tire forming machine tire unloading position difference drive clamping device, comprising an inner fixed ring 1 and an outer moving ring 2 coaxially arranged. The moving ring 2 is mounted on the fixed ring 1 via circumferentially evenly distributed rollers. The extension and retraction of the piston rod of the clamping cylinder 14 drives the moving ring 2 to rotate in the forward and reverse directions relative to the fixed ring 1. Inside the fixed ring 1, a circumferentially evenly distributed tire blank clamping mechanism is provided based on the fixed ring 1 and the moving ring 2. Each tire blank clamping mechanism includes a tire blank clamping component I3 and a tire blank clamping component II4. The tire blank clamping component I3 is used to clamp the outer top of the M-type giant tire blank, and the tire blank clamping component II4 is used to clamp the central recess of the outer top of the M-type giant tire blank, such as... Figure 1 As shown.

[0021] The embryo clamping assembly I3 includes a double connecting rod 3-1 and a clamping plate 3-2. The double connecting rod 3-1 consists of two bent rods, one in front and one in back. The clamping plate 3-2 has a hollow opening and is evenly distributed with spikes 13. The rod body of the double connecting rod 3-1 is mounted on the fixed ring 1 via a shaft I to form a lever I. The outer end of the double connecting rod 3-1 is hinged to one end of the double adjusting screw 5. The other end of the double adjusting screw 5 is hinged to a rod seat 7 fixed on the moving ring 2. The inner end of the double connecting rod 3-1... Hinged to the clamping plate 3-2, each adjacent clamping plate 3-2 is provided with a sliding rod assembly 12 to maintain the roundness of all clamping plates 3-2. Each sliding rod assembly 12 includes a sliding rod 12-1 and a sliding seat 12-2. Each sliding seat 12-2 has a sliding hole. Two sliding seats 12-2 are respectively hinged to the adjacent ends of adjacent clamping plates 3-2. The sliding rod 12-1 is located between adjacent sliding seats 12-2, and both ends of the sliding rod 12-1 are slidably fitted into the sliding holes of adjacent sliding seats 12-2. Figure 2 , Figure 3 As shown.

[0022] The embryo clamping assembly II 4 includes a single connecting rod 4-1 and a clamping block 4-2. The single connecting rod 4-1 is a bent rod located between the double connecting rods 3-1. The single connecting rod 4-1 is mounted on shaft I to form lever II. The size of the clamping block 4-2 matches the opening of the clamping plate 3-2. The outer end of the single connecting rod 4-1 is hinged to one end of a single adjusting screw 6, and the other end of the single adjusting screw 6 is hinged to a rod seat 7. The inner end of the single connecting rod 4-1 passes through the opening of the clamping plate 3-2 and is hinged to the clamping block 4-2. The clamping block 4-2 is also evenly distributed with spikes 13, such as... Figure 2 , Figure 4 As shown.

[0023] In lever I, the part of the double link 3-1 outside the fulcrum is the effort arm I11, and the part of the double link 3-1 inside the fulcrum is the resistance arm I8; in lever II, the part of the single link 4-1 outside the fulcrum is the effort arm II10, and the part of the single link 4-1 inside the fulcrum is the resistance arm II9; the resistance arm I8 of the double link 3-1 and the resistance arm II9 of the single link 4-1 are of equal length, and the effort arm II10 of the single link 4-1 is shorter than the effort arm I11 of the double link 3-1, as follows. Figure 2 , Figure 3 , Figure 4 As shown.

[0024] The power arm II10 of the single link 4-1 is shorter than the power arm I11 of the double link 3-1, and is located at the moving ring 2. Figure 2 When rotating in the direction of the arrow, the shorter single link 4-1 of power arm II 10 moves faster, while the longer double link 3-1 of power arm I 11 moves slower. This causes the clamping blocks 4-2 and the clamping plates 3-2 to form a positional difference on two different roundnesses, one inside and one outside, when they contract synchronously. Finally, the clamping plates 3-2 clamp onto the outer round top of the M-shaped giant tire blank, and the clamping blocks 4-2 clamp onto the recessed part in the middle of the outer round top of the M-shaped giant tire blank. When clamping, the spikes 13 on each clamping block 4-2 and each clamping plate 3-2 are all driven into the tire blank, which can effectively prevent the tire blank from falling off during the flipping.

[0025] When unloading the tire, the moving ring 2 reverses, and the double connecting rod 3-1 and the single connecting rod 4-1 move in opposite directions to expand each clamping block 4-2 and each clamping plate 3-2 simultaneously. The moving ring 2 reverses to its position, and the clamping block 4-2 is flush with the hollow opening of the clamping plate 3-2. Each clamping plate 3-2 and each clamping block 4-2 are in the same roundness.

Claims

1. A tire forming machine tire unloading position difference drive clamping device, comprising a tire blank clamping mechanism based on an inner fixed ring (1) and an outer moving ring (2) arranged coaxially and evenly distributed around the circumference, characterized in that Each embryo clamping mechanism includes embryo clamping assembly I (3) and embryo clamping assembly II (4), wherein: The embryo clamping assembly I (3) includes a double connecting rod (3-1) and a clamping plate (3-2). The double connecting rod (3-1) is hinged to the fixed ring (1). The inner end of the double connecting rod (3-1) is hinged to the clamping plate (3-2). The outer end of the double connecting rod (3-1) is hinged to one end of the double adjusting screw (5). The other end of the double adjusting screw (5) is hinged to the rod seat (7) provided on the moving ring (2). A sliding rod assembly (12) is provided between adjacent clamping plates (3-2) to maintain the roundness of all clamping plates (3-2). The embryo clamping assembly II (4) includes a single connecting rod (4-1) and a clamping block (4-2). The single connecting rod (4-1) is coaxially hinged to the fixed ring (1) between the double connecting rods (3-1). The inner end of the single connecting rod (4-1) passes through the hollow opening of the clamping plate (3-2) and is hinged to the clamping block (4-2). The outer end of the single connecting rod (4-1) is hinged to one end of a single adjusting screw (6). The other end of the single adjusting screw (6) is hinged to a rod seat (7). The resistance arm I (8) of the double link (3-1) is the same length as the resistance arm II (9) of the single link (4-1), and the power arm II (10) of the single link (4-1) is shorter than the power arm I (11) of the double link (3-1).

2. The tire forming machine tire unloading position difference drive clamping device according to claim 1, characterized in that: The slide rod assembly (12) includes a slide rod (12-1) and a slide seat (12-2) with a sliding hole. The two slide seats (12-2) are respectively hinged to the adjacent ends of the adjacent clamping plates (3-2). The slide rod (12-1) is located between the adjacent slide seats (12-2) and the two ends of the slide rod (12-1) are respectively slidably engaged in the two sliding holes.

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