A fabric guiding and loading device and a rubber calender

Abstract

The utility model relates to tire production technical field discloses a kind of cloth leading loading device and rubber calender, including the T-shaped shaft being respectively arranged in square steel two ends, U-shaped groove for placing square steel is formed along the axis direction to T-shaped shaft;Fastening torus is moved along the axis direction to T-shaped shaft, U-shaped limiting block that fastening torus forms can be embedded U-shaped groove along radial direction, U-shaped limiting block can be self-moving to the position fixed relative to U-shaped groove.The utility model sets U-shaped groove and places square steel and sets U-shaped limiting block and limits square steel along radial direction movement, so that square steel is fixed relative to T-shaped shaft;Secondly, U-shaped limiting block can keep relative fixation with U-shaped groove, so that U-shaped limiting block can keep relative fixation with U-shaped groove when always high-speed vibration, and then both can always constrain the radial runout of square steel, and then guarantee the locking effect of the embodiment under high-speed vibration to square steel.

Description

Technical Field

[0001] This utility model relates to the field of tire production technology, specifically to a fabric loading device and a rubber calender. Background Technology

[0002] Steel cord fabric is a flexible material composed of thousands of extremely fine steel wires arranged side by side. It cannot directly withstand enormous traction forces and is prone to scattering and twisting under no-load conditions. Therefore, before starting the main production line, a strong yet flexible guide fabric (usually high-strength nylon canvas or a special rubber belt) must be used as the guiding substrate. This guide fabric is pre-passed through the multiple roller systems of the rubber calender, and then the head of the steel cord fabric is securely spliced ​​onto the tail of the guide fabric. By pulling the guide fabric, the steel cord fabric is smoothly "introduced" and passed through the entire equipment. In existing technology, the roll holding the guide fabric is usually composed of a hollow roller made of wood or composite materials and its driving component—a transmission square steel. The hollow roller is fitted onto the transmission square steel through a square hole in its center, and radial locking is commonly achieved by tightening bolts at the ends of the square steel to transmit torque and prevent axial movement.

[0003] This type of bolt-locking structure can maintain basic functionality under low-speed or static conditions. However, under the actual high-speed operation of the calender (typically, the lead wire speed needs to be greater than 40 meters / minute), its inherent structural defects are fully exposed. When the calender is running at high speed, continuous and severe multi-frequency vibrations are induced by a combination of factors such as the drive system, roller gap, and material tension fluctuations. This vibration environment poses a severe challenge to the bolt-locking structure: its vibration resistance mechanism is inherently insufficient, as bolt locking relies on the static friction between the threads. Under continuous, especially alternating cyclic vibration loads, minute relative slippage is easily generated between the threaded pairs. This "micro-movement" gradually destroys the preload, leading to frictional attenuation and bolt self-loosening, resulting in a sharp decline in operational reliability. Once the bolt preload is lost due to vibration, a huge impact load will be generated between the square hole and the square steel, which originally had a fitting clearance. This not only causes unstable transmission and misalignment and wrinkling of the fabric, but also accelerates the wear of the transmission pair. The most dangerous consequence is that after the locking function is completely lost, the hollow roller will completely detach from the transmission square steel under the action of axial force, causing a serious equipment and safety accident like a "runaway car", which poses a direct threat to personnel and property and has become a key bottleneck restricting production efficiency and safety. Utility Model Content

[0004] This utility model addresses the problem of locking failure of bolt-locking structures for fixed transmission square steel under high-speed vibration by providing a fabric loading device and a rubber calender. The specific technical solution is as follows: A fabric loading device, wherein the fabric is connected to the fabric loading device via a square steel bar, characterized in that the fabric loading device comprises: T-shaped shafts respectively disposed at both ends of the square steel bar, the T-shaped shafts forming U-shaped grooves along the axial direction for placing the square steel bar, so that the square steel bar drives the T-shaped shafts to rotate; and a fastening ring that moves along the axial direction of the T-shaped shafts, the fastening ring forming U-shaped limiting blocks along the radial direction that can be embedded in the U-shaped grooves to constrain the radial movement of the square steel bar along the T-shaped shafts, the U-shaped limiting blocks being able to move on their own to a fixed position relative to the U-shaped grooves to maintain the constraint relationship with the square steel bar.

[0005] Furthermore, the U-shaped groove includes a mounting groove formed on the shaft body of the T-shaped shaft, the inner side of the mounting groove coincides with the side of the square steel; the U-shaped limiting block is embedded radially into the mounting groove, and the bottoms of the two are parallel, with the parallel gap H1 equal to the height H2 of the square steel, so as to restrict the square steel from moving relative to the T-shaped shaft in the height direction.

[0006] Preferably, the U-shaped groove further includes a limiting groove formed on the convex edge of the T-shaped shaft. The limiting groove is connected to the mounting groove. The radial width Wx of the limiting groove is equal to the width Wu of the U-shaped limiting block. The protruding length L of the U-shaped limiting block is greater than 0. The protruding length L is the length of the U-shaped limiting block that protrudes axially from the end face of the fastening ring, so that the U-shaped limiting block is embedded in the limiting groove axially.

[0007] Preferably, the convex edge of the T-shaped shaft is close to the lead fabric, and several permanent magnets are provided on the convex edge of the T-shaped shaft. When the U-shaped limiting block is close to the convex edge of the T-shaped shaft, the permanent magnets can continuously apply an attractive magnetic field force to the fastening ring.

[0008] Preferably, it also includes a support member, which includes a support frame for supporting the square steel and the fabric and support shafts disposed at both ends of the square steel; one end of the support shaft is connected to a T-shaped shaft, and the other end of the support shaft is provided with a pneumatic brake, which can apply resistance to the support shaft.

[0009] A rubber calender includes a fabric loading device.

[0010] As can be seen from the above technical solution, this utility model has the following beneficial effects: This utility model features a U-shaped groove for placing square steel and a U-shaped limiting block to restrict the radial movement of the square steel, thus fixing the square steel relative to the T-shaped shaft. Secondly, the U-shaped limiting block can maintain relative fixation with the U-shaped groove, ensuring that the U-shaped limiting block remains relatively fixed with the U-shaped groove even during high-speed vibration. Consequently, both can always constrain the radial runout of the square steel, thereby guaranteeing the locking effect of the square steel under high-speed vibration in this embodiment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 for Figure 1 Enlarged view of the structure at point A in the image; Figure 3 for Figure 2 Schematic diagram of the structure for fixing the square steel with the central fastening ring; Figure 4 for Figure 2 A schematic diagram of the structure of the square steel without the central fastening ring; Figure 5 for Figure 2 Sectional view in; Figure 6 for Figure 2 The top view in the image.

[0012] In the diagram: 1. Support component; 11. Support bracket; 12. Support shaft; 2. Pneumatic brake; 3. T-shaped shaft; 4. U-shaped groove; 41. Mounting groove; 42. Limiting groove; 5. Permanent magnet; 6. Fastening ring; 7. U-shaped limiting block; 8. Lead cloth; 9. Square steel. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] like Figure 1 As is known from common knowledge in the field, the lead fabric 8 in the rubber calender is rolled up, with a hollow roller passing through its middle position. A square steel 9 passes through the middle of the hollow roller, and the length of the square steel 9 is greater than the width of the lead fabric 8.

[0016] Example 1 Combination Figure 2As shown, this embodiment is a fabric loading device, which includes: T-shaped shafts 3 respectively disposed at both ends of the square steel 9, the T-shaped shafts 3 forming U-shaped grooves 4 along the axial direction for placing the square steel 9, so that the square steel 9 drives the T-shaped shafts 3 to rotate; and a fastening ring 6 that moves along the axial direction of the T-shaped shafts 3, the fastening ring 6 forming U-shaped limiting blocks 7 that can be embedded in the U-shaped grooves 4 in the radial direction, so as to constrain the square steel 9 to move radially along the T-shaped shafts 3, and the U-shaped limiting blocks 7 moving on their own to a fixed position relative to the U-shaped grooves 4, so as to maintain the constraint relationship of the square steel 9.

[0017] Specifically, U-shaped grooves 4 are embedded at both ends of the square steel 9. The cross-section of the U-shaped groove 4 is U-shaped, with an open top. Its bottom and sides are spliced ​​together to form a U-shape. When the guide cloth 8 rotates under external traction, the guide cloth 8 can drive the square steel 9 to rotate. In turn, the square steel 9 drives the T-shaped shaft 3 to rotate through the U-shaped groove 4 to output torque. Secondly, a through hole is formed inside the fastening ring 6, which is fitted onto the outer side of the T-shaped shaft 3. The sidewall of the through hole is fixedly connected to the U-shaped limiting block 7 by bolts or welding. The limiting block 7 extends radially toward the axis of the fastening ring 6, allowing it to embed into the U-shaped groove 4 and approach the top of the square steel 9 located within the U-shaped groove 4. This allows the U-shaped limiting block 7 to restrict the radial movement of the square steel 9, thereby constraining the position of the square steel 9 relative to the U-shaped groove 4. Secondly, when the fastening ring 6 moves left and right along the axial direction of the T-shaped shaft 3, the U-shaped limiting block 7 can move left and right along the side wall of the U-shaped groove 4 to constrain its movement trajectory, thereby constraining the movement trajectory of the fastening ring 6.

[0018] Furthermore, a self-resetting structure, such as a spring or magnetic field, is formed between the U-shaped limiting block 7 or the fastening ring 6 and the T-shaped shaft 3. Figure 3 When the self-resetting structure shown is in its initial state, the U-shaped limiting block 7, the fastening ring 6, and the U-shaped groove 4 are relatively fixed, as... Figure 4 When the self-resetting structure moves away from the guide cloth 8 under external force, it can drive the U-shaped limiting block 7 to move along the U-shaped groove 4, so that both move to their initial positions and restore their relative fixed state. This restricts the radial movement of the square steel 9. As a result, when this embodiment is in a high-frequency vibration working environment, the fastening ring 6 and the U-shaped limiting block 7 can always be fixed to the U-shaped groove 4 to constrain the position of the square steel 9 relative to the U-shaped groove 4, thereby ensuring the locking effect of the fastening ring 6 and the U-shaped limiting block 7.

[0019] like Figure 5 As shown, the U-shaped groove 4 includes a mounting groove 41 formed on the shaft body of the T-shaped shaft 3. The inner side of the mounting groove 41 coincides with the side of the square steel 9. The U-shaped limiting block 7 is embedded in the mounting groove 41 radially, and the bottoms of the two are parallel. The parallel gap H1 is equal to the height H2 of the square steel 9, so as to restrict the square steel 9 from moving relative to the T-shaped shaft 3 in the height direction.

[0020] Specifically, the T-shaped shaft 3 consists of a shaft body and a convex edge. The diameter of the shaft body is smaller than the diameter of the convex edge. A fastening ring 6 is fitted onto the outer surface of the shaft body, allowing the fastening ring 6 to slide against the outer surface of the shaft body. Secondly, a mounting groove 41 is formed in the shaft body. One end of the square steel 9 is installed in the mounting groove 41. The radial depth of the mounting groove 41 along the T-shaped shaft 3 must satisfy the following condition: the centerline of the square steel 9 installed in the mounting groove 41 coincides with the axis of the T-shaped shaft 3, ensuring that when the square steel 9 drives the T-shaped shaft 3 to rotate, eccentric rotation does not occur. The radial depth of the mounting groove 41 along the T-shaped shaft 3 is greater than the height of the square steel 9. When the U-shaped limiting block 7 is embedded in the mounting groove 41, its bottom surface can coincide with the top surface of the square steel 9. When the fastening ring 6 is sleeved on the outer side of the shaft body, it can provide support for the U-shaped limiting block 7, so that the parallel gap H1 between the U-shaped limiting block 7 and the mounting groove 41 remains fixed, avoiding the square steel 9 from jumping radially relative to the U-shaped limiting block 7 in a vibrating working environment, thereby maintaining the limiting effect of both the U-shaped limiting block 7 and the mounting groove 41 on the square steel 9 and improving the vibration resistance effect.

[0021] Combination Figure 6 As shown, the U-shaped groove 4 also includes a limiting groove 42 formed on the convex edge of the T-shaped shaft 3. The limiting groove 42 is connected to the mounting groove 41. The radial width Wx of the limiting groove 42 is equal to the width Wu of the U-shaped limiting block 7. The protruding length L of the U-shaped limiting block 7 is greater than 0. The protruding length L is the length of the U-shaped limiting block 7 protruding axially from the end face of the fastening ring 6, so that the U-shaped limiting block 7 is embedded in the limiting groove 42 axially.

[0022] Specifically, a convex edge is formed on the outer surface of the shaft body, and at one end of the shaft body near the guide cloth 8. The diameter of the convex edge is larger than the diameter of the shaft body, and the inner diameter of the convex edge is equal to the diameter of the shaft body. The two are fixed by welding to improve the structural strength of the T-shaped shaft 3. Secondly, the limiting groove 42 passes through the convex edge axially, connecting it with the mounting groove 41. The radial width Wx of the limiting groove 42 is the same as the width of the mounting groove 41. The inner diameter of the fastening ring 6 is smaller than the diameter of the convex edge, and it moves towards the convex edge under the action of magnetic force until it contacts the convex edge, allowing the U-shaped limiting block 7 to move along the convex edge. The U-shaped limiting block 7 is perfectly embedded in the limiting groove 42. At this time, the U-shaped limiting block 7 and the convex edge remain relatively fixed. This position can automatically reset the initial position of the structure, so that the convex edge can restrict the rotation of the U-shaped limiting block 7, thereby restricting the rotation of the fastening ring 6 relative to the T-shaped shaft 3, thus preventing the U-shaped limiting block 7 from rotating relative to the square steel 9, thereby improving its limiting effect on the square steel 9 with the mounting groove 41 and improving the vibration resistance. Secondly, when the external force moves the fastening ring 6 away from the convex edge, the operator can quickly embed the square steel 9 into the mounting groove 41 or separate it from the mounting groove 41, improving the replacement efficiency of the square steel 9.

[0023] In a preferred embodiment, the convex edge of the T-shaped shaft 3 is close to the lead cloth 8, and a plurality of permanent magnets 5 are provided on the convex edge of the T-shaped shaft 3. When the U-shaped limiting block 7 is close to the convex edge of the T-shaped shaft 3, the permanent magnets 5 can continuously apply an attractive magnetic field force to the fastening ring 6.

[0024] Specifically, seven permanent magnets 5 are evenly distributed on the convex edge, and the fastening ring 6 is made of metal. It can apply a magnetic field force to the fastening ring 6 to move to the right, so that the U-shaped limiting block 7 can move along the mounting groove 41 to the limiting groove 42 until the fastening ring 6 contacts the convex edge, so that the U-shaped limiting block 7 is embedded in the limiting groove 42, and the limiting groove 42 restricts the U-shaped limiting block 7 from rotating relative to itself.

[0025] Furthermore, this embodiment also includes a support member 1, which includes a support frame for supporting the square steel 9 and the guide cloth 8, and support shafts 12 disposed at both ends of the square steel 9; one end of the support shaft 12 is connected to the T-shaped shaft 3, and the other end of the support shaft 12 is provided with a pneumatic brake 2, which can apply resistance to the support shaft 12.

[0026] Specifically, the support frame is installed on the bottom surface, and the support shaft 12 is symmetrically installed on its top by bolts. The opposite ends of the support shaft 12 are welded and fixed to the shaft body of the T-shaped shaft 3, so that the torque transmitted from the square steel 9 to the T-shaped shaft 3 can be transmitted to the support shaft 12, and then to the pneumatic brake 2. Secondly, the pneumatic brake 2 can apply friction force to the support shaft 12, and then apply a resistance torque to it, and then apply a resistance torque to the T-shaped shaft 3 and the square steel 9, thereby reducing the extension speed of the guide cloth 8 and maintaining the tension of the guide cloth 8.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0028] Example 2 A rubber calender includes a fabric loading device that enables improved production safety.

[0029] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A cloth leading device, said cloth (8) being connected to said cloth leading device by a square steel (9), characterized in that, The fabric loading device includes: T-shaped shafts (3) are respectively provided at both ends of the square steel (9). The T-shaped shafts (3) are formed axially with U-shaped grooves (4) for placing the square steel (9), so that the square steel (9) drives the T-shaped shafts (3) to rotate; and A fastening ring (6) that moves axially along the T-shaped shaft (3) has a U-shaped limiting block (7) that can be embedded in the U-shaped groove (4) in the radial direction to constrain the square steel (9) to move radially along the T-shaped shaft (3). The U-shaped limiting block (7) can move on its own to a fixed position relative to the U-shaped groove (4) to maintain the constraint relationship on the square steel (9).

2. The tow loading device of claim 1, wherein: The U-shaped groove (4) includes a mounting groove (41) formed on the shaft body of the T-shaped shaft (3), and the inner side of the mounting groove (41) overlaps with the side of the square steel (9); The U-shaped limiting block (7) is embedded radially into the mounting groove (41), and the bottoms of the two are parallel. The parallel gap H1 is equal to the height H2 of the square steel (9) to restrict the square steel (9) from moving relative to the T-shaped shaft (3) in the height direction.

3. The fabric loading device according to claim 2, characterized in that: The U-shaped groove (4) also includes a limiting groove (42) formed on the convex edge of the T-shaped shaft (3). The limiting groove (42) is connected to the mounting groove (41). The radial width Wx of the limiting groove (42) is equal to the width Wu of the U-shaped limiting block (7). The protruding length L of the U-shaped limiting block (7) is greater than 0. The protruding length L is the length of the U-shaped limiting block (7) protruding axially from the end face of the fastening ring (6) so that the U-shaped limiting block (7) is embedded axially into the limiting groove (42).

4. The tow loading device of claim 3, wherein: The protruding edge of the T-shaped shaft (3) is close to the lead cloth (8). The protruding edge of the T-shaped shaft (3) is provided with several permanent magnets (5). When the U-shaped limiting block (7) is close to the protruding edge of the T-shaped shaft (3), the permanent magnets (5) can continuously apply an attractive magnetic field force to the fastening ring (6).

5. The tow loading device of claim 1, wherein It also includes a support member (1), which includes a support frame for supporting the square steel (9) and the guide cloth (8) and support shafts (12) disposed at both ends of the square steel (9); One end of the support shaft (12) is connected to the T-shaped shaft (3), and the other end of the support shaft (12) is provided with a pneumatic brake (2), which can apply resistance to the support shaft (12).

6. A rubber calender, characterized in that, The rubber calender includes the fabric loading device as described in any one of claims 1 to 5.

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