Parallel link tire removal device

Abstract

The invention discloses a parallel linkage type tire unloading device, comprising left and right supporting arms and a quadrilateral translation flipping mechanism installed on a frame through left and right distance adjustment mechanisms, the flipping mechanism comprising left and right front and rear swing arms, the lower ends of the front and rear swing arms are hinged on a machine base, the upper end of the front swing arm is hinged on the front bottom of the frame, and the rear swing arm is hinged on the rear bottom of the frame through a slider sliding thereon; a cross bar is connected between the left and right front swing arms, a translation drive cylinder hinged on a cylinder base is provided in front of the cross bar, a cylinder rod extending backwards from the translation drive cylinder is hinged on the cross bar, a flipping drive cylinder is provided between the left and right rear swing arms, the lower end of the flipping drive cylinder is hinged on the machine base, and the cylinder rod extending upwards from the flipping drive cylinder is hinged on the rear bottom of the frame. The invention integrates the three actions of entry and exit, lifting and flipping into one, has a simple mechanism, a small number of parts, is easy to install, and has high efficiency.

Description

Technical Field

[0001] The invention relates to a tire unloading mechanism of a tire vulcanizer, in particular to a parallel connecting rod type tire unloading device. Background Art

[0002] The tire unloading mechanism of the conventional tire shaping and vulcanizing machine has the ability to unload the vulcanized tire onto the tire conveyor belt, but its structure is relatively complicated.

[0003] The tire unloading process of this type of tire unloading mechanism is: the lower ring of the center mechanism rises → the tire unloading device enters → the upper ring of the center mechanism rises → the lower ring of the center mechanism falls → the tire unloading device rises → the upper ring of the center mechanism falls → the tire unloading device exits → the tire unloading device falls → the tire unloading device flips over.

[0004] The tire unloading mechanism has a relatively complex structure because it needs to complete multiple actions such as in and out, lifting and turning. Summary of the invention

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a parallel-link type tire unloading device with a simple structure.

[0006] A parallel-link tire unloading device capable of solving the above-mentioned technical problems, wherein the technical solution comprises a left supporting arm and a right supporting arm mounted on a frame through a left and a right distance adjusting mechanism, wherein the difference is that: the frame is arranged on a quadrilateral translation flipping mechanism, the quadrilateral translation flipping mechanism comprises a left and a right symmetrical front swing arm and a rear swing arm, the lower ends of the front swing arm and the rear swing arm are hinged on the front and rear positions of the machine base, the upper end of the front swing arm is hinged on the front bottom of the frame, the swing angle of the rear swing arm is consistent with that of the front swing arm and is hinged on the rear bottom of the frame through a slider sliding on the rear swing arm; a cross bar is connected between the left and right front swing arms, a translation driving cylinder hinged on the cylinder seat is provided in front of the cross bar, a cylinder rod of the translation driving cylinder extending backward is hinged on the cross bar, a flip driving cylinder consistent with the swing angle of the rear swing arm is provided between the left and the right rear swing arms, the lower end of the flip driving cylinder is hinged on the machine base, and the cylinder rod of the flip driving cylinder extending upward is hinged on the rear bottom of the frame.

[0007] A structure of the frame includes a left frame plate corresponding to the left front swing arm and the rear swing arm and a right frame plate corresponding to the right front swing arm and the rear swing arm, the front ends of the left frame plate and the right frame plate are penetrated with a front guide rod, and the rear ends of the left frame plate and the right frame plate are penetrated with a rear guide rod.

[0008] Furthermore, the left support arm is installed on the front guide rod and the rear guide rod on the left side of the left frame plate through front and rear linear bearings, and the right support arm is installed on the front guide rod and the rear guide rod on the right side of the right frame plate through front and rear linear bearings.

[0009] Beneficial effects of the present invention:

[0010] 1. In the parallel linkage type tire unloading device structure of the present invention, the left and right support arms are controlled by a quadrilateral translation flipping mechanism. In the quadrilateral translation flipping mechanism, the front and rear swing arms are driven to swing by a translation drive cylinder. The translation characteristics of the parallel four-link can realize the in and out movement of the left and right support arms to transport the tires smoothly. During the swinging process of the front and rear swing arms, the lifting and lowering movement of the left and right support arms in the translation state can be realized as the angle of the arm body changes. The rotation radius of the rear swing arm can be changed by the flipping drive cylinder to realize the flipping movement of the left and right support arms, so that the vulcanized tire can be unloaded smoothly.

[0011] 2. The present invention integrates the three actions of in and out, lifting and turning into one, with a simple structure, a small number of parts, easy installation and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an axonometric view of an embodiment of the present invention.

[0013] Figure 2 for Figure 1 Front view of an embodiment.

[0014] Figure 3 for Figure 2 Top view of the .

[0015] Figure 4 for Figure 2 Side view of.

[0016] Figure 5 for Figure 1 Schematic diagram of the working of the implementation method.

[0017] Figure number identification: 1. Distance adjustment mechanism; 2. Left support arm; 3. Right support arm; 4. Front swing arm; 5. Rear swing arm; 6. Machine base; 7. Slider; 8. Cross bar; 9. Translation drive cylinder; 10. Flip drive cylinder; 11. Left frame plate; 12. Right frame plate; 13. Front guide rod; 14. Rear guide rod; 15. Cylinder base; 16. Vulcanizer base; 17. Vulcanized tire; 18. Tire transportation line. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0019] The parallel-link type tire unloading device of the present invention comprises a symmetrical left supporting arm 2 and a right supporting arm 3, a frame and a quadrilateral translation turning mechanism.

[0020] The quadrilateral translation flip mechanism comprises a front swing arm 4 and a rear swing arm 5 which are symmetrical on the left and right. The angles between the front swing arm 4 and the rear swing arm 5 and the horizontal plane are the same (i.e., the swing angles are consistent). The lower ends of the left and right front swing arms 4 are hinged to the front of the machine base 6, and the lower ends of the left and right rear swing arms 5 are hinged to the rear of the machine base 6. The machine base 6 is fixed on the vulcanizer base 16. Slide blocks 7 are slidably provided on the left and right rear swing arms 5. The lower parts of the left and right front swing arms 4 are connected to cross bars 8. A translation drive cylinder 9 hingedly mounted on a cylinder seat 15 is provided in front of the middle of the cross bar 8. The cylinder seat 15 is fixedly mounted on a vulcanizer base 16. The cylinder rod of the translation drive cylinder 9 extending backward is hingedly connected to the cross bar 8. A flip drive cylinder 10 is provided in the center between the left and right rear swing arms 5. The cylinder body of the flip drive cylinder 10 is hingedly mounted on the machine base 6 between the hinge points at the lower ends of the left and right rear swing arms 5. The cylinder rod extending upward from the flip drive cylinder 10 is consistent with the swing angle of the rear swing arm 5. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 shown.

[0021] The frame includes a left frame plate 11 and a right frame plate 12 which are symmetrical in the front and rear directions. The front ends of the left frame plate 11 and the right frame plate 12 are penetrated with left and right front guide rods 13, and the rear ends of the left frame plate 11 and the right frame plate 12 are penetrated with left and right rear guide rods 14. The left frame plate 11 is located above the left front swing arm 4 and the rear swing arm 5, and the right frame plate 12 is located above the right front swing arm 4 and the rear swing arm 5. The upper ends of the left and right front swing arms 4 are respectively connected to the front bottoms of the left frame plate 11 and the right frame plate 12 through hinge structures, and the left and right sliders 7 on the left and right rear swing arms 4 are respectively connected to the rear end bottoms of the left frame plate 11 and the right frame plate 12 (located below the rear guide rod 14) through hinge structures. The cylinder rod extending upward from the flip drive cylinder 10 is connected to the rear guide rod 14 through a hinge structure. Figure 1 , Figure 2 , Figure 3 , Figure 4 shown.

[0022] The rear part of the left support arm 2 is installed on the front guide rod 13 and the rear guide rod 14 on the left side of the left frame plate 11 through front and rear linear bearings, and the left support arm 2 is connected to the left frame plate 11 through a corresponding distance adjustment mechanism 1 (screw nut transmission mechanism). The rear part of the right support arm 3 is installed on the front guide rod 13 and the rear guide rod 14 on the right side of the right frame plate 12 through front and rear linear bearings, and the right support arm 3 is connected to the right frame plate 12 through a corresponding distance adjustment mechanism 1 (screw nut transmission mechanism). The left and right distance adjustment mechanisms 1 synchronously adjust the opening and closing distances of the left support arm 2 and the right support arm 3 on the front guide rod 13 and the rear guide rod 14 to adapt to the access to vulcanized tires 17 of different models and specifications, such as Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 shown.

[0023] In the above structure, the frame and the quadrilateral translation flip mechanism form a deformed four-bar linkage. The extension and retraction of the cylinder rod of the flip drive cylinder 10 drives the left and right sliders 7 to synchronously rise and fall on the left and right rear swing arms 5. When the left and right sliders 7 are raised to make the rotation radius of the rear swing arm 5 the same as the rotation radius of the front swing arm 4, the quadrilateral translation flip mechanism drives the frame to translate forward and backward. When the left and right sliders 7 are lowered to make the rotation radius of the rear swing arm 5 smaller than the rotation radius of the front swing arm 4, the frame flips backward at the translation position. Figure 5 shown.

[0024] The operation mode of the present invention is:

[0025] 1. When the vulcanizer needs to unload the tire, the cylinder rod of the flip driving cylinder 10 extends to drive the left and right sliders 7 to move on the left and right rear swing arms 5. When the hinge centers of the left and right sliders 7 are adjusted to the same rotation radius as the hinge centers of the left and right front swing arms 4, the left support arm 2 and the right support arm 3 are in a horizontal tire receiving position.

[0026] 2. The cylinder rod of the translation drive cylinder 9 contracts, driving the left support arm 2 and the right support arm 3 to move forward into the vulcanizer in a translation manner and be located above the tire vulcanization chamber, and cooperate with the central mechanism of the vulcanizer to receive the vulcanized tire 17.

[0027] 3. The cylinder rod of the translation drive cylinder 9 is extended, driving the left support arm 2 and the right support arm 3 to rotate backward out of the tire vulcanization chamber in a translation manner, and the vulcanized tire 17 is taken out of the vulcanizer.

[0028] 4. The cylinder rod of the flip driving cylinder 10 contracts, driving the left support arm 2 and the right support arm 3 to flip backwards, and the vulcanized tire 17 automatically slides down from the left support arm 2 and the right support arm 3 into the tire transport line 18, thereby completing the tire unloading action.

[0029] The present invention has the characteristics of a parallelogram linkage mechanism, and the entry, exit, lifting and lowering of the tire are achieved by the swinging of the front swing arm 4 and the rear swing arm 5 with the same rotation radius, and the overturning of the tire is achieved by the deformation of the rear swing arm 5 (that is, equivalent to a shortened rear swing arm 5).

Claims

1. A parallel linkage type tire unloading device, comprising a left support arm (2) and a right support arm (3) mounted on a frame through a left and a right distance adjustment mechanism (1), characterized in that: The frame is arranged on a quadrilateral translation flip mechanism, and the quadrilateral translation flip mechanism comprises a front swing arm (4) and a rear swing arm (5) which are symmetrical on the left and right. The lower ends of the front swing arm (4) and the rear swing arm (5) are hingedly mounted on the front and rear positions of the machine base (6), and the upper end of the front swing arm (4) is hingedly mounted on the front bottom of the frame. The swing angle of the rear swing arm (5) is consistent with that of the front swing arm (4) and is hingedly mounted on the rear bottom of the frame through a slider (7) sliding on the rear swing arm (5); the left and right front swing arms (4) and the rear swing arms (5) are hingedly mounted on the rear bottom of the frame. A cross bar (8) is connected between the arms (4), a translation drive cylinder (9) hinged on a cylinder seat (15) is provided in front of the cross bar (8), a cylinder rod of the translation drive cylinder (9) extending backward is hinged on the cross bar (8), a flip drive cylinder (10) with a swing angle consistent with that of the rear swing arm (5) is provided between the left and right rear swing arms (5), the lower end of the flip drive cylinder (10) is hinged on the machine seat (6), and the cylinder rod of the flip drive cylinder (10) extending upward is hinged on the rear bottom of the frame.

2. The parallel linkage tire removal device according to claim 1, characterized in that: The frame comprises a left frame plate (11) corresponding to the left front swing arm (4) and the rear swing arm (5) and a right frame plate (12) corresponding to the right front swing arm (4) and the rear swing arm (5); a front guide rod (13) is passed through the front ends of the left frame plate (11) and the right frame plate (12); and a rear guide rod (14) is passed through the rear ends of the left frame plate (11) and the right frame plate (12).

3. The parallel linkage tire removal device according to claim 2, characterized in that: The left support arm (2) is mounted on a front guide rod (13) and a rear guide rod (14) on the left side of the left frame plate (11) via front and rear linear bearings, and the right support arm (3) is mounted on a front guide rod (13) and a rear guide rod (14) on the right side of the right frame plate (12) via front and rear linear bearings.

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