A one-piece triangular adhesive composite drum and its molding method

Abstract

The purpose of this invention is to provide an integrated triangular adhesive bonding and forming drum and its forming method, which can realize fully automatic triangular adhesive bonding and forming. While ensuring high uniformity and tightness of the product, a steel ring can be placed on the drum for integrated forming, and it can meet the requirements of multiple specifications, greatly reducing equipment costs and improving production efficiency. To achieve the above objectives, the solution of this invention is to provide an integrated triangular adhesive bonding and forming drum, characterized in that it includes: a base plate, a main shaft, a flipping mechanism, a pre-support mechanism, and a straight rod drive. The base plate is located at the head of the main shaft, the flipping mechanism surrounds the head of the main shaft and is connected to the base plate, the flipping mechanism is used for flipping and forming the triangular adhesive, the pre-support mechanism is located between the flipping mechanism and the main shaft, the pre-support mechanism is used to adjust the outer diameter of the flipping mechanism, and the flipping mechanism and the pre-support mechanism are driven by the straight rod drive.

Description

Technical Field

[0001] This invention relates to the field of triangular rubber bead production, and more particularly to an integrated triangular rubber bead molding drum and its molding method. Background Technology

[0002] Existing triangular tire bead forming equipment mainly includes triangular tire bead umbrella forming machines, horizontal triangular tire bead winding forming machines, and vertical triangular tire bead bonding drum forming machines. Umbrella forming machines are primarily operated manually, resulting in high labor intensity, low efficiency, and inconsistent product quality. Horizontal triangular tire bead winding forming machines and vertical triangular tire bead bonding drum forming machines offer a higher degree of automation.

[0003] CN102363366B discloses a horizontal triangular adhesive bonding device, including a frame, a winding device horizontally arranged on the frame, and two heating cutter devices. The winding device also includes large and small pressure rollers. This device achieves fully automatic triangular adhesive bonding, but its overall uniformity is poor, and the adhesion between the triangular adhesive and the steel ring is not tight, especially with noticeable separation at the head and tail joint areas.

[0004] CN106273594A discloses a bonding drum for a vertical triangular rubber automatic bonding machine, including a main shaft, a drum flipping mechanism, a first cylinder, a steel rim clamping mechanism, a second cylinder, and a slider seat. The steel rim clamping mechanism has an airbag structure for positioning. This type of bonding drum produces triangular rubber bead uniformity and tightness compared to horizontal bonding devices, but its versatility is poor; each specification of bonding drum can only be used for steel rims of the same nominal size, resulting in high cost.

[0005] CN106182849A discloses a bonding drum for a vertical triangular adhesive automatic bonding machine, comprising a main shaft extending front and rear, a cylinder, a rear support plate, a front support plate spaced apart in front of the cylinder, an adjusting screw located in front of the main shaft, several drum flipping mechanisms arranged sequentially around the outer ring of the main shaft, a collar, and a guide key fixedly connected to the collar. This bonding drum can be adjusted in diameter by adjusting the screw, allowing it to use steel rings of different diameters. This type of bonding drum features an adjustable drum diameter and high versatility, but it requires docking with a bonding plate to achieve triangular adhesive forming, increasing equipment costs. Furthermore, it eliminates the steel ring clamping structure of a capsule-type bonding drum, resulting in lower uniformity and tightness compared to a capsule-type bonding drum.

[0006] Therefore, providing a one-piece triangular rubber bead composite drum for the triangular rubber tire bead production field is a technical problem that urgently needs to be solved. Summary of the Invention

[0007] The purpose of this invention is to provide an integrated triangular adhesive bonding and molding drum and its molding method, which can realize fully automatic triangular adhesive bonding and molding. Under the premise of ensuring that the product has high uniformity and tightness, the steel ring can be placed on the drum for integrated molding, and it can meet the adaptability of multiple specifications, greatly reducing equipment costs and improving production efficiency.

[0008] To achieve the above objectives, the present invention provides an integrated triangular adhesive molding drum, characterized in that it comprises: a base plate, a main shaft, a flipping mechanism, a pre-support mechanism, and a straight rod drive. The base plate is disposed at the head of the main shaft, the flipping mechanism surrounds the head of the main shaft and is connected to the base plate, the flipping mechanism is used for flipping and molding the triangular adhesive, the pre-support mechanism is located between the flipping mechanism and the main shaft, the pre-support mechanism is used to adjust the outer diameter of the flipping mechanism, and the flipping mechanism and the pre-support mechanism are driven by the straight rod drive.

[0009] Furthermore, the spindle section includes a main spindle, a mandrel, and an intermediate shaft. The mandrel and the intermediate shaft are located inside the main spindle. The intermediate shaft is sleeved on the head of the mandrel, and the body of the main spindle is provided with a sliding groove.

[0010] Furthermore, the straight rod drive unit includes a first drive motor and a second drive motor. The first drive motor is located outside the main shaft and is mounted on a first cylinder seat, which is connected to the spindle through a sliding groove. The second drive motor is mounted on a second cylinder seat and is connected to the intermediate shaft through a sliding groove. The first drive motor is connected to the pre-support mechanism and is used to drive the pre-support mechanism. The second drive motor is connected to the tilting mechanism and is used to drive the tilting mechanism. Preferably, the first drive motor and the second drive motor are cylinders.

[0011] Furthermore, the flipping mechanism includes a large sliding plate and several finger plate flipping mechanisms. The finger plate flipping mechanisms circumferentially surround the main shaft. Each finger plate flipping mechanism includes a push rod, a connecting rod, and a finger plate assembly. One end of the push rod is connected to the large sliding plate, and the other end of the push rod is connected to the middle of the connecting rod. One end of the connecting rod is located in a groove within the finger plate assembly, and the other end of the connecting rod is connected to the pre-support mechanism. The large sliding plate is connected to the second drive motor, and the second drive motor drives the large sliding plate to move along the main shaft axis.

[0012] Furthermore, the pre-support mechanism includes a small slide, a short rod, and a slider. One end of the short rod is connected to the small slide, and the other end of the short rod is connected to the slider. The small slide is connected to the first drive motor, which drives the small slide to move along the main shaft axis. The slider is connected to the tilting mechanism and is slidably connected to the base plate. The slider moves perpendicular to the main shaft axis.

[0013] Furthermore, the head of the main shaft is provided with a drum diameter adjustment device, which includes an outer drum diameter adjuster and an inner drum diameter adjuster. The inner drum diameter adjuster is connected to the intermediate shaft, and the outer drum diameter adjuster is connected to the spindle.

[0014] Furthermore, the head of the finger plate assembly is provided with a steel ring locking block, which is used to support the steel ring.

[0015] Furthermore, the finger plate flipping mechanism is equipped with an adsorption device, which is located on any one of the finger plate assemblies.

[0016] A method for molding triangular adhesive, using the aforementioned one-piece triangular adhesive to form a molding drum.

[0017] Furthermore, in a triangular rubber forming method, the triangular rubber material head is adsorbed by an adsorption device, and the rotational drive power transmitted from the main shaft of the forming drum rotates the drum, causing the triangular rubber to wrap around the drum. After the forming drum rotates once, the material head and tail precisely overlap, and the overlap joint is pressed tightly by an external device to form a cylindrical triangular rubber material ring. A steel ring is placed on the steel ring locking block, and the first drive motor drives the pre-support mechanism to expand, expanding the triangular rubber material ring while clamping the steel wire ring. The second drive motor drives the flipping mechanism, and the finger plate flipping mechanism flips the triangular rubber upright, so that the stop of the triangular rubber is tightly fastened to the steel wire ring, thereby obtaining a triangular rubber tire bead product.

[0018] Advantages of this invention:

[0019] This system enables automatic winding and bonding of triangular rubber, integrating the steel wire ring onto the forming drum. This eliminates the need for a bonding disc, reducing equipment costs and improving bonding accuracy, ensuring the uniformity of the triangular rubber bead products. The pre-support mechanism allows for circumferential stretching of the triangular rubber before forming, resulting in higher tightness after upright forming. The screw and nut structure of the bonding forming drum allows for adjustment of the drum's inner and outer diameters, making the forming drum suitable for multiple specifications, reducing replacement frequency, increasing production efficiency, and lowering equipment costs. This forming drum significantly improves product quality, equipment cost, and production efficiency, demonstrating immense application and promotion value. Attached Figure Description

[0020] Figure 1 This is a front view of an integrated triangular adhesive composite drum provided by the present invention;

[0021] Figure 2 This is a cross-sectional view of the integrated triangular adhesive composite drum provided by the present invention;

[0022] Figure 3 This is a schematic diagram of the integrated triangular adhesive composite drum provided by the present invention;

[0023] Figure 4 This is a cross-sectional view of the integrated triangular adhesive composite drum provided by the present invention.

[0024] As shown in the figure, 1-mandrel, 2-main shaft, 3-first cylinder seat, 4-first drive motor, 5-second cylinder seat, 6-second drive motor, 7-large slide plate, 8-intermediate shaft, 9-main shaft section, 10-small slide plate, 11-tilting mechanism section, 12-pre-support mechanism section, 13-base plate, 14-outer drum diameter adjuster, 15-inner drum diameter adjuster, 16-adsorption device, 17-finger plate assembly, 18-steel ring locking block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, an integrated triangular adhesive bonding molding drum includes: a base plate 13, a main shaft 9, a flipping mechanism 11, a pre-support mechanism 12, and a straight rod drive unit. The base plate 13 is located at the head of the main shaft 9. The flipping mechanism 11 surrounds the head of the main shaft 9 and is connected to the base plate 13. The flipping mechanism 11 is used for flipping and molding the triangular adhesive. The pre-support mechanism 12 is located between the flipping mechanism 11 and the main shaft 9. The pre-support mechanism 12 is used to adjust the outer diameter of the flipping mechanism 11. The flipping mechanism 11 and the pre-support mechanism 12 are driven by the straight rod drive unit.

[0027] The main spindle 9 includes a main spindle 2, a spindle 1, and an intermediate spindle 8. The spindle 1 and the intermediate spindle 8 are located inside the main spindle 2. The intermediate spindle 8 is sleeved on the head of the spindle 1. The body of the main spindle 2 is provided with a sliding groove.

[0028] The straight rod drive unit includes a first drive motor 4 and a second drive motor 6. The first drive motor 4 is located outside the main shaft 2 and is mounted on a first cylinder seat 3, which is connected to the spindle 1 through a sliding groove. The second drive motor 6 is mounted on a second cylinder seat 5, which is connected to the intermediate shaft 8 through a sliding groove. The first drive motor 4 is connected to the pre-support mechanism 12 and is used to drive the pre-support mechanism 12. The second drive motor 6 is connected to the tilting mechanism 11 and is used to drive the tilting mechanism 11. The first drive motor 4 and the second drive motor 6 are cylinders. The first cylinder seat 3 has a threaded section with the spindle 1, and the second cylinder seat 5 has a threaded section with the intermediate shaft 8.

[0029] The flipping mechanism 11 includes a large sliding plate 7 and several finger plate flipping mechanisms. The finger plate flipping mechanisms circumferentially surround the main shaft 2. Each finger plate flipping mechanism includes a push rod, a connecting rod, and a finger plate assembly 17. One end of the push rod is connected to the large sliding plate 7, and the other end of the push rod is connected to the middle of the connecting rod. One end of the connecting rod is located in a groove within the finger plate assembly 17, and the other end of the connecting rod is connected to the pre-support mechanism 12. The large sliding plate 7 is connected to the second drive motor 6, and the second drive motor 6 drives the large sliding plate 7 to move along the axis of the main shaft 2.

[0030] The pre-support mechanism 12 includes a small slide plate 10, a short rod, and a slider. One end of the short rod is connected to the small slide plate 10, and the other end of the short rod is connected to the slider. The small slide plate 10 is connected to the first drive motor 4, and the first drive motor 4 drives the small slide plate 10 to move along the axis of the main shaft 2. The slider is connected to the flipping mechanism 11, and the slider is slidably connected to the base plate 13. The slider moves perpendicular to the axis of the main shaft 2. The slider is connected to the connecting rod and the finger plate assembly 17 of the finger plate flipping mechanism.

[0031] like Figure 3 and Figure 4 As shown, the head of the main shaft 9 is provided with a drum diameter adjustment device, which includes an outer drum diameter adjuster 14 and an inner drum diameter adjuster 15. The inner drum diameter adjuster 15 is connected to the intermediate shaft 8, and the outer drum diameter adjuster 14 is connected to the mandrel 1. Rotating the inner drum diameter adjuster 15 can move the position of the second cylinder seat 5 relative to the intermediate shaft 8, and rotating the outer drum diameter adjuster 14 can move the position of the first cylinder seat 3 relative to the mandrel 1, thereby changing the drum diameter of the forming drum. The head of the finger plate assembly 17 is provided with a steel ring locking block 18, which is used to support the steel ring. The finger plate flipping mechanism is provided with an adsorption device 16, which is located on any one of the finger plate assemblies 17.

[0032] The specific working process is as follows: The triangular rubber material head is adsorbed by the adsorption device 16. The rotational drive power transmitted from the main shaft 2 of the forming drum rotates the drum and drives the triangular rubber to wrap around the drum. After the forming drum rotates once, the material head and the material tail are precisely overlapped. The overlap joint is pressed tightly by the external device to form a cylindrical triangular rubber material ring. The steel ring is placed on the steel ring locking block 18. The first drive motor 4 drives the pre-support mechanism 12 to expand, expanding the triangular rubber material ring and clamping the steel wire ring. The second drive motor 6 drives the flipping mechanism 11. The finger plate flipping mechanism flips the triangular rubber, so that the stop of the triangular rubber is tightly fastened to the steel wire ring. The second drive motor 6 drives the flipping mechanism 11 to retract, and the first drive motor 4 drives the pre-support mechanism 12 to contract, thus obtaining the triangular rubber tire bead product.

[0033] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A one-piece triangular adhesive composite drum, characterized in that, include: The system comprises a base plate (13), a main shaft (9), a tilting mechanism (11), a pre-support mechanism (12), and a straight rod drive unit. The base plate (13) is located at the head of the main shaft (9). The tilting mechanism (11) surrounds the head of the main shaft (9) and is connected to the base plate (13). The tilting mechanism (11) is used for tilting and shaping the triangular rubber. The pre-support mechanism (12) is located between the tilting mechanism (11) and the main shaft (9). The pre-support mechanism (12) is used to adjust the outer diameter of the tilting mechanism (11). The tilting mechanism (11) and the pre-support mechanism (12) are driven by the straight rod drive unit. The main shaft (9) includes a main shaft (2), a mandrel (1), and an intermediate shaft (8). The mandrel (1) and the intermediate shaft (8) are located inside the main shaft (2). The intermediate shaft (8) is sleeved on the head of the mandrel (1). The body of the main shaft (2) is provided with a sliding groove. The triangular rubber head is adsorbed by the adsorption device (16). The rotating drive power transmitted from the main shaft (2) of the forming drum rotates and drives the triangular rubber to wrap around the drum. The straight rod drive part includes a first drive motor (4) and a second drive motor (6). The first drive motor (4) is located outside the main shaft (2). The first drive motor (4) is located in the first air... On the cylinder seat (3), the first cylinder seat (3) passes through the sliding groove and is connected to the mandrel (1); the second drive motor (6) is mounted on the second cylinder seat (5), and the second cylinder seat (5) passes through the sliding groove and is connected to the intermediate shaft (8); the first drive motor (4) is connected to the pre-support mechanism (12), and the first drive motor (4) is used to drive the pre-support mechanism (12); the second drive motor (6) is connected to the tilting mechanism (11), and the second drive motor (6) is used to drive the tilting mechanism (11); after the forming drum rotates one revolution, the material head and the material tail precisely overlap, and the overlap joint is tightly pressed by an external device. A cylindrical triangular rubber ring is formed; the steel ring is placed on the steel ring locking block (18), and the first drive machine (4) drives the pre-support mechanism (12) to expand, expanding the triangular rubber ring while clamping the steel wire ring; the second drive machine (6) drives the flipping mechanism (11), and the finger plate flipping mechanism flips the triangular rubber, so that the stop of the triangular rubber is tightly fastened to the steel wire ring, and a triangular rubber tire bead product is obtained. The finger plate flipping mechanism is provided with an adsorption device (16), which is provided on any finger plate assembly (17). The head of the finger plate assembly (17) is provided with the steel ring locking block (18), which is used to support the steel ring.

2. The integrated triangular adhesive composite drum according to claim 1, characterized in that, The flipping mechanism (11) includes a large sliding plate (7) and several finger plate flipping mechanisms. The finger plate flipping mechanisms circumferentially surround the main shaft (2). Each finger plate flipping mechanism includes a push rod, a connecting rod, and a finger plate assembly (17). One end of the push rod is connected to the large sliding plate (7), and the other end of the push rod is connected to the middle of the connecting rod. One end of the connecting rod is located in a groove in the finger plate assembly (17), and the other end of the connecting rod is connected to the pre-support mechanism (12). The large sliding plate (7) is connected to the second drive motor (6), and the second drive motor (6) drives the large sliding plate (7) to move along the axis of the main shaft (2).

3. The integrated triangular adhesive composite drum according to claim 2, characterized in that, The pre-support mechanism (12) includes a small slide (10), a short rod and a slider. One end of the short rod is connected to the small slide (10), and the other end of the short rod is connected to the slider. The small slide (10) is connected to the first drive motor (4). The first drive motor (4) drives the small slide (10) to move along the axis of the main shaft (2). The slider is connected to the tilting mechanism (11). The slider is slidably connected to the base plate (13). The slider moves perpendicular to the axis of the main shaft (2). The head of the main shaft (9) is provided with a drum diameter adjustment device. The drum diameter adjustment device includes an outer drum diameter adjuster (14) and an inner drum diameter adjuster (15). The inner drum diameter adjuster (15) is connected to the intermediate shaft (8), and the outer drum diameter adjuster (14) is connected to the spindle (1).

4. A method for forming triangular adhesive, characterized in that, The integrated triangular adhesive composite drum as described in any one of claims 1-3.

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