A method and system for cooling rubber

Abstract

The present application relates to the technical field of flexible sheet processing, in particular to a rubber cooling method and system. The rubber cooling method comprises: based on a cooling instruction trigger, the starting end of the rubber is passed through the gap between the initial position of the first supporting unit and the pressing unit; the pressing unit extrudes the rubber to abut against the first limiting protrusion of the first supporting unit; wherein the abutting position of the rubber and the first limiting protrusion is deformed; the first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion, and the rubber upstream of the abutting position closest to the initial position moves at a second speed along the feeding direction; wherein the first speed is less than the second speed; a plurality of first supporting units are sequentially and spacedly arranged along the feeding direction; all the first supporting units move synchronously along the feeding direction. Thus, the problem of easy stacking during the rubber cooling process is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flexible sheet processing, in particular to a rubber cooling method and system. BACKGROUND

[0002] As an important intermediate in rubber processing, rubber sheet is widely used in the production of rubber products such as tires, seals, and transmission belts. In the processing flow of rubber sheet, after the processes of rubber mixing and vulcanization, the rubber sheet needs to be cooled. This process not only allows the rubber sheet to quickly set and avoid deformation in the high-temperature state that affects the precision of subsequent processing, but also effectively eliminates the thermal stress generated inside the rubber sheet during processing, improving the mechanical properties and structural stability of the rubber sheet. Currently, common cooling methods for rubber sheets include spray cooling, air cooling, and water tank immersion cooling. Among them, air cooling is particularly widely used in rubber processing enterprises due to its lower equipment cost.

[0003] During the conveying process of rubber sheet cooling, a portion of the rubber sheet will hang between each adjacent support structure. However, there may be uneven distribution of gravity. When the weight difference between the rubber sheets on both sides of the support structure is too large, the lighter side of the rubber sheet may be dragged by the heavier side, which may cause the rubber sheet to slide with the support structure, resulting in excessive stacking of the rubber sheet between adjacent support structures, thereby affecting the normal operation of the rubber sheet cooling. This not only causes frequent shutdown of the production line, increasing equipment maintenance costs, but also may cause surface damage and size deviation due to stacking and extrusion, reducing product yield. In addition, the restart process after shutdown requires re-adjustment of process parameters, further increasing production energy consumption and time cost. SUMMARY

[0004] To solve the problem of easy stacking during rubber sheet cooling, the present application provides a rubber cooling method and system.

[0005] In a first aspect, the present application provides a rubber cooling method, comprising:

[0006] Based on the cooling instruction trigger, the starting end of the rubber sheet is passed through the gap between the initial position of the first support unit and the pressing unit;

[0007] The pressing unit extrudes the rubber sheet to abut against the first limiting protrusion of the first support unit; wherein the rubber sheet deforms at the abutment position with the first limiting protrusion;

[0008] The first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion, and the rubber upstream of the abutting position closest to the initial position moves at a second speed along the feeding direction; wherein the first speed is less than the second speed; a plurality of first supporting units are sequentially and spacedly arranged along the feeding direction; and all the first supporting units move synchronously along the feeding direction.

[0009] In some embodiments, the rubber cooling method further comprises:

[0010] When the overlapping and falling distance of the rubber upstream of the abutting position closest to the initial position between two adjacent first supporting units reaches a set range, the next first supporting unit moves to the initial position; and the pressing unit extrudes the rubber to abut against the first limiting protrusion of the first supporting unit.

[0011] The first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion, and the rubber upstream of the abutting position closest to the initial position moves at a second speed along the feeding direction.

[0012] The above steps are repeatedly executed.

[0013] In some embodiments, the first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion, and the rubber upstream of the abutting position closest to the initial position moves at a second speed along the feeding direction comprises:

[0014] The rubber upstream of the abutting position closest to the initial position moves at a second speed along the feeding direction.

[0015] The cooling assembly drives the airflow in the space where the first supporting unit is located to flow.

[0016] The first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion.

[0017] In some embodiments, during the process that the first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion, the first limiting protrusion rotates the pressing unit by the force of the rubber acting on the pressing unit.

[0018] In some embodiments, the first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion comprises:

[0019] The first supporting unit drives the rubber to move at a first speed along the feeding direction at the abutting position of the rubber and the first limiting protrusion.

[0020] The rubber is moved at the first speed for a set time, and a braking force is applied to stop the pressing unit from rotating;

[0021] The braking force is removed based on the pressing unit being subjected to an external force greater than a set value, wherein the external force is applied by the first limiting protrusion.

[0022] In some embodiments, the pressing unit extrudes the rubber to abut against the first limiting protrusion of the first support unit, comprising:

[0023] The length of the rubber downstream of the first limiting protrusion in the initial position is obtained;

[0024] The first limiting protrusion in the initial position moves to a first set state based on the length of the rubber being less than or equal to a set length, wherein the first set state comprises A < B; A is the distance between the first side of the first limiting protrusion in the initial position and the bottom end of the pressing unit in the upward / downward direction, and B is the distance between the second side of the first limiting protrusion in the initial position and the bottom end of the pressing unit in the upward / downward direction, the first side comprising the side of the first limiting protrusion closer to the downstream of the initial position, and the second side comprising the side of the first limiting protrusion closer to the upstream of the initial position;

[0025] The pressing unit extrudes the rubber to abut against the first limiting protrusion of the first support unit to a second set state, wherein the second set state comprises the rubber closer to the first side of the first limiting protrusion in the initial position deforming more than the rubber closer to the second side of the first limiting protrusion in the initial position.

[0026] In some embodiments, the next first support unit moves to the initial position based on the rubber closest to the abutment position upstream of the initial position overlapping between two adjacent first support units by a set range of the overhanging distance;

[0027] The length of the rubber upstream of the first limiting protrusion in the initial position is obtained based on the rubber closest to the abutment position upstream of the initial position overlapping between two adjacent first support units by a set range of the overhanging distance;

[0028] The next first support unit moves to a third setting state based on a length of the rubber sheet outside the first support unit moving area being less than or equal to a set length; the third setting state includes the next first support unit moving to the initial position, and C>D; C is a distance between a first side of the next first support unit and the bottom end of the pressing unit along the feeding direction, and D is a distance between a second side of the next first support unit and the bottom end of the pressing unit along the feeding direction; the first side includes a side of the first limiting protrusion close to a downstream of the initial position, and the second side includes a side of the first limiting protrusion close to an upstream of the initial position;

[0029] During the process that the pressing unit extrudes the rubber sheet to abut against the first limiting protrusion of the first support unit, a deformation amount of the rubber sheet on the first side close to the first limiting protrusion in the initial position is less than a deformation amount of the rubber sheet on the second side close to the first limiting protrusion in the initial position.

[0030] In some embodiments, the rubber sheet cooling system further includes a second support unit; a plurality of the first support units and a plurality of the second support units are arranged in sequence and staggered along the feeding direction; projections of the first limiting protrusions on the first support units and the second limiting protrusions on the second support units on the pressing unit are arranged in sequence along an axial direction of the pressing unit;

[0031] The next first support unit moves to the initial position in the step of moving the next first support unit to the initial position, including: one of the first support units moves to the initial position, or one of the second support units moves to the initial position.

[0032] The external force is applied by the first limiting protrusion, including: the external force is applied by the first limiting protrusion, or the external force is applied by the second limiting protrusion.

[0033] In a second aspect, the present application provides a rubber sheet cooling system, which is applied to the rubber sheet cooling method in any one of the first aspect, and the rubber sheet cooling system includes:

[0034] A frame assembly;

[0035] A conveying assembly connected with the frame assembly;

[0036] Multiple first support units are provided, each first support unit including a first support frame and a first limiting protrusion; one end of the first support frame is connected to the conveying assembly, and the other end extends away from the conveying assembly; multiple first support frames are arranged at intervals along the feeding direction of the conveying assembly; the first limiting protrusion is connected to the side of the first support frame away from the conveying assembly; the conveying assembly drives all the first support frames to move along the feeding direction;

[0037] A pressing unit, which is connected to the frame assembly;

[0038] Rubber;

[0039] The working state of the rubber cooling method includes: after the pressing unit squeezes the rubber to abut against the first limiting protrusion and the rubber deforms at the abutment position against the first limiting protrusion, the first support unit drives the rubber at the abutment position against the first limiting protrusion to move along the feeding direction at a first speed, and the rubber upstream of the abutment position closest to the initial position moves along the feeding direction at a second speed; wherein, the first speed is less than the second speed.

[0040] In some embodiments, the rubber cooling system includes a support assembly; the support assembly includes a plurality of first support units and a plurality of second support units; the second support unit includes a second support frame and a second limiting protrusion; one end of the second support frame is connected to the conveying assembly, and the other end extends away from the conveying assembly; the second limiting protrusion is connected to the side of the second support frame away from the conveying assembly; the plurality of first support frames are arranged sequentially at intervals along the feeding direction; the conveying assembly drives all the second support frames to move along the feeding direction; the plurality of first support frames and the plurality of second support frames are arranged sequentially and alternately at intervals along the feeding direction; the projections of the first limiting protrusion and the second limiting protrusion on the pressing unit are arranged at intervals along the axial direction of the pressing unit;

[0041] The working state further includes: after the pressing unit squeezes the rubber sheet to abut against the first limiting protrusion of the first support unit and the rubber sheet deforms at the abutment position of the first limiting protrusion, the second support frame moves along the feeding direction to the initial position, and the pressing unit squeezes the rubber sheet to abut against the second limiting protrusion and the rubber sheet deforms at the abutment position of the second limiting protrusion.

[0042] To address the problem of rubber sheets easily stacking during the cooling process, this invention has the following advantages:

[0043] Triggered by a cooling command, the starting end of the rubber sheet passes through the gap between the first support unit and the pressing unit at the initial position, allowing the rubber sheet to enter the preset conveying channel and providing a foundation for subsequent stable conveying. The pressing unit squeezes the rubber sheet until it abuts against the first limiting protrusion of the first support unit. The deformed rubber sheet can form a stable contact point with the first limiting protrusion, reducing the relative movement between the rubber sheet and the first support unit during conveying, ensuring the stable transmission of conveying power, and avoiding the risk of slippage caused by unstable contact.

[0044] The rubber sheet is driven by the first support unit to move at a first speed along the feeding direction at the contact point with the first limiting protrusion, and the rubber sheet upstream of the contact point closest to the initial position moves at a second speed along the feeding direction. The speed difference makes the downstream rubber sheet move slower than the upstream rubber sheet, allowing the rubber sheet between two adjacent first support units to sag naturally, increasing the number of rubber sheets in this area, facilitating the cooling components to cool more rubber sheets, thereby improving the cooling efficiency of the cooling system. By having multiple first support units arranged sequentially at intervals along the feeding direction and all first support units moving synchronously along the feeding direction, the weight of the rubber sheet can be distributed to reduce the amount of rubber sheet sagging, avoiding excessive sagging between adjacent units. At the same time, the contact area and friction with the rubber sheet are increased, further reducing the sliding between the rubber sheet and the first support unit. Ultimately, this prevents the rubber sheet from stacking between two adjacent first support units, solving the problems of rubber sheet stacking affecting normal cooling operation, causing frequent production line shutdowns, increasing equipment maintenance costs, production energy consumption and time costs, and reducing product qualification rate. Attached Figure Description

[0045] Figure 1 This is a flowchart of a rubber cooling method according to one embodiment;

[0046] Figure 2 This is a schematic diagram of the structure of a rubber cooling system according to one embodiment;

[0047] Figure 3 for Figure 2 Schematic diagram of the structure of the middle support component and the pressing component;

[0048] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0049] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0050] Figure 6 for Figure 2 A schematic diagram of the structure in which the first limiting protrusion moves to the first set state;

[0051] Figure 7 for Figure 6A schematic diagram of the structure in which the first limiting protrusion moves to the third set state.

[0052] Reference numerals: 10, frame assembly; 20, conveying assembly; 21, first drive unit; 22, drive disc; 23, drive belt; 30, support assembly; 31, first support unit; 311, first support frame; 312, first limiting protrusion; 32, second support unit; 321, second support frame; 322, second limiting protrusion; 40, pressing assembly; 41, drive unit; 411, second drive unit; 412, connecting ring; 413, slide groove; 42, pressing unit; 421, central shaft; 422, elastic cylinder; 43, braking unit; 50, cooling assembly; 60, rubber. Detailed Implementation

[0053] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0054] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0055] During the conveying process of rubber sheet cooling, a portion of the rubber sheet hangs down between each pair of adjacent support structures. However, uneven weight distribution may occur. When the weight of the rubber sheet hanging down between adjacent support structures is too heavy, it may cause the rubber sheet to slip against the support structure, resulting in excessive stacking of the rubber sheet between the two support structures. This affects the normal operation of the rubber sheet cooling process. This not only causes frequent production line shutdowns and increases equipment maintenance costs, but may also lead to surface damage and dimensional deviations in the rubber sheet due to stacking and compression, reducing the product qualification rate. Furthermore, the restart process after a shutdown requires readjusting process parameters, further increasing production energy consumption and time costs.

[0056] A rubber cooling system is a piece of equipment used in the rubber processing field to cool and shape molded rubber sheets, ensuring the quality of subsequent processing. It includes a frame assembly, a conveying assembly, multiple first support units, a pressing unit, and rubber sheets. The conveying assembly is connected to the frame assembly. The pressing unit is also connected to the frame assembly. Multiple first support units include a first support frame and a first limiting protrusion. One end of the first support frame is connected to the conveying assembly, and the other end extends away from the conveying assembly. Multiple first support frames are arranged at intervals along the feeding direction of the conveying assembly. The first limiting protrusion is connected to the side of the first support frame away from the conveying assembly. The conveying assembly drives all first support frames to move along the feeding direction. The working state of the rubber cooling method includes: the pressing unit compresses the rubber sheet until it abuts against the first limiting protrusion, and after deformation occurs at the contact point, the first support unit drives the contact point of the rubber sheet with the first limiting protrusion to move along the feeding direction at a first speed, and the rubber sheet upstream of the contact point closest to the initial position moves along the feeding direction at a second speed; wherein the first speed is less than the second speed.

[0057] Example 1:

[0058] This application proposes a method for cooling rubber, such as... Figure 1 As shown, the rubber cooling method includes steps S10, S20, and S30; steps S10, S20, and S30 are executed sequentially.

[0059] Step S10: Based on the cooling command trigger, the starting end of the rubber sheet 60 is passed through the gap between the first support unit 31 and the pressing unit 42 at the initial position. The gap formed by the first support unit 31 and the pressing unit 42 constitutes a conveying channel.

[0060] Step S20: The pressing unit 42 compresses the rubber sheet 60 until it abuts against the first limiting protrusion 312 of the first support unit 31; wherein, the rubber sheet 60 deforms at the abutment position with the first limiting protrusion 312. The compressive force of the pressing unit 42 forces the rubber sheet 60 to deform and adhere to the first limiting protrusion 312. The deformed rubber sheet 60 and the limiting protrusion form a stable contact point, making the rubber sheet 60 tightly adhere to the first support unit 31, reducing the relative movement between the rubber sheet 60 and the first support unit 31 during the conveying process, providing sufficient friction for subsequent operations, and ensuring the stable transmission of conveying power.

[0061] Step S30: The first support unit 31 drives the rubber sheet 60 to move at a first speed along the feeding direction at the contact point with the first limiting protrusion 312, and moves upstream of the contact point closest to the initial position (e.g., Figure 1 As shown, the upstream (which can be the right side) rubber sheet 60 moves along the feeding direction at a second speed; wherein the first speed is less than the second speed. This speed difference design allows the downstream (such as...) Figure 1As shown, the downstream (left side) rubber 60 moves more slowly than the rubber 60 entering between the first support unit 31 and the pressing unit 42, causing the rubber 60 between adjacent first support units 31 to droop naturally. This results in more rubber 60 between adjacent first support units 31, allowing the cooling component 50 to cool more rubber 60, thereby improving the cooling efficiency of the cooling system. Multiple first support units 31 are arranged sequentially at intervals along the feeding direction; all first support units 31 move synchronously along the feeding direction. Multiple spaced first support units 31 move synchronously and support the rubber sheet 60 respectively. More first support units 31 can distribute the weight of the rubber sheet 60, reduce the amount of sag of the rubber sheet 60, and prevent the rubber sheet 60 from sag too much between two adjacent first support units 31. At the same time, multiple first support units 31 abut against the rubber sheet 60 through first limiting protrusions 312, increasing the contact area with the rubber sheet 60 and increasing the friction with the rubber sheet 60. This can further reduce the sliding between the rubber sheet 60 and the first support units 31, thereby preventing the rubber sheet 60 from sliding against the first limiting protrusions 312 and causing the rubber sheet 60 to stack between two adjacent first support units 31.

[0062] Furthermore, the rubber cooling method also includes steps S40, S50, S60, and S70; steps S10, S20, S30, S40, S50, S60, and S70 are executed sequentially.

[0063] Step S40: Based on the fact that the overlap and drooping distance of the rubber sheet 60 upstream of the contact position closest to the initial position reaches a set range between two adjacent first support units 31, the next first support unit 31 moves to the initial position. By monitoring the overlap and drooping state of the rubber sheet 60 between adjacent first support units 31 and driving the next first support unit 31 to move to the initial position, stacking caused by the rubber sheet 60 drooping due to its own weight due to excessive support spacing can be avoided, ensuring that the rubber sheet 60 is always within the effective support range during the conveying process and maintaining the stability of the conveying path; moreover, dynamic adaptation of the support structure can be achieved without manual intervention to adjust the position of the first support unit 31, which can eliminate the operation delay and deviation caused by manual adjustment and ensure the continuous and uninterrupted conveying process.

[0064] Step S50: The pressing unit 42 presses the rubber 60 until it abuts against the first limiting protrusion 312 of the first support unit 31. In this way, the rubber 60 abuts against the limiting protrusion at the newly filled first support unit 31, which can continue the limiting effect and prevent the rubber 60 from going lateral due to lack of restraint.

[0065] Step S60: The first support unit 31 drives the rubber sheet 60 to move at a first speed along the feeding direction at the contact point with the first limiting protrusion 312, and the rubber sheet 60 upstream of the contact point closest to the initial position moves at a second speed along the feeding direction. Multiple spaced first support units 31 move synchronously and support the rubber sheet 60 respectively. More first support units 31 can distribute the weight of the rubber sheet 60, reduce the sagging of the rubber sheet 60, and prevent the rubber sheet 60 from sagging too much between two adjacent first support units 31. At the same time, multiple first support units 31 abut against the rubber sheet 60 through the first limiting protrusion 312, increasing the contact area with the rubber sheet 60 and increasing the friction with the rubber sheet 60, which can further reduce the sliding between the rubber sheet 60 and the first support unit 31.

[0066] Step S70: Repeat steps S40, S50, and S60 above. This adapts to the conveying needs of rubber sheets 60 of different lengths, eliminating the limitations of traditional equipment on the length of the rubber sheets 60. It is worth noting that during the cycle, the triggering conditions and speed parameters can be flexibly adjusted according to the specifications of the rubber sheets 60, achieving compatible processing of multiple specifications of rubber sheets 60 and reducing the operational complexity of equipment changeover.

[0067] Further, step S30 includes steps S31, S32, and S33. Steps S10, S20, S31, S32, and S33 are executed sequentially.

[0068] Step S31: The rubber sheet 60 upstream of the contact position closest to the initial position moves along the feeding direction at a second speed. The upstream rubber sheet 60 preferentially moves at a faster second speed, while the downstream rubber sheet 60 moves slower than the rubber sheet 60 entering between the first support unit 31 and the pressing unit 42, thus causing the rubber sheet 60 between two adjacent first support units 31 to droop naturally.

[0069] Step S32: The cooling component 50 drives airflow in the space where the first support unit 31 is located. The airflow can actively remove the heat from the first support unit 31 and the rubber 60, thereby accelerating the cooling of the rubber 60 and facilitating the shaping of the rubber 60.

[0070] Step S33: The first support unit 31 drives the rubber sheet 60 to move at a first speed along the feeding direction at the contact point between the first support unit 31 and the rubber sheet 60. The contact point between the first support unit 31 and the rubber sheet 60 moves at a slower first speed, creating a speed difference with the rubber sheet 60 moving at a second speed upstream. This causes the rubber sheet 60 between two adjacent first support units 31 to droop naturally. Furthermore, the first limiting protrusion 312 abuts against the rubber sheet 60, increasing the contact area between them and the rubber sheet 60. This results in greater friction with the rubber sheet 60, further reducing the sliding between the rubber sheet 60 and the first support unit 31.

[0071] Furthermore, in step S33, the first limiting protrusion 312 exerts a force on the pressing unit 42 through the rubber 60, causing the pressing unit 42 to rotate. In this way, there is no need to configure additional driving components such as motors and cylinders for the pressing unit 42; rotation can be achieved solely by the force between the rubber 60 and the first limiting protrusion 312, thereby reducing manufacturing and maintenance costs.

[0072] Further, step S33 includes steps S331, S332, and S333. Steps S10, S20, S31, S32, S331, S332, and S333 are executed sequentially.

[0073] Step S331: The first support unit 31 drives the rubber 60 to move at a first speed along the feeding direction at the point where it abuts against the first limiting protrusion 312.

[0074] Step S332: After the rubber sheet 60 moves at the first speed for a set time, a braking force is applied to stop the pressing unit 42 from rotating. The braking force can counteract the rotational inertia of the pressing unit 42, preventing the pressing unit 42 from continuing to rotate due to inertia when the rubber sheet 60 stops moving or changes speed.

[0075] Step S333: Based on the fact that the external force on the pressing unit 42 is greater than a set value, the braking force is cancelled; wherein, the external force is applied by the first limiting protrusion 312. After the first support unit 31 moves away from the pressing unit 42 to a distance from the initial position, the pressing unit 42 rotates at a certain angle, so that the position of the pressing unit 42 abutting against the first limiting protrusion 312 of the first support unit 31 changes. The first limiting protrusion 312 of the subsequent first support unit 31 that moves to the initial position abuts against the pressing unit 42 at other positions through the rubber 60. In this way, the first limiting protrusions 312 that abut against the pressing unit 42 in sequence abut against different areas of the pressing unit 42. Compared with all the limiting protrusions abutting against the same area of ​​the pressing unit 42, this can reduce the risk of the pressing unit 42 being damaged due to multiple first limiting protrusions 312 abutting against the same position of the pressing unit 42, thereby extending the service life of the pressing unit 42 and avoiding damage to the pressing unit 42 in a short period of time.

[0076] Further, step S20 includes: steps S21, S22, and S23; steps S10, S21, S22, S23, and S30 are executed sequentially.

[0077] Step S21: Obtain the length of the rubber sheet 60 downstream of the first limiting protrusion 312 in the initial position. This provides data support for subsequent position adjustment of the first limiting protrusion 312 and distribution of compression force.

[0078] Step S22: Based on the length of the rubber sheet 60 being less than or equal to a set length, the first limiting protrusion 312 in the initial position moves to a first set state. The first set state includes A < B; A is the vertical distance between the first side of the first limiting protrusion 312 and the bottom end of the pressing unit 42 in the initial position, and B is the vertical distance between the second side of the first limiting protrusion 312 and the bottom end of the pressing unit 42 in the initial position. The first side includes the side of the first limiting protrusion 312 downstream of the initial position, and the second side includes the side of the first limiting protrusion 312 upstream of the initial position. When A < B, as... Figure 6 As shown, the bottom end of the first support unit 31 is inclined relative to the top end toward the feeding direction, and the side of the first limiting protrusion 312 closer to the downstream is closer to the pressing unit 42 than the side of the first limiting protrusion 312 closer to the upstream.

[0079] Step S23: The pressing unit 42 squeezes the rubber 60 to abut against the first limiting protrusion 312 of the first support unit 31 to a second set state; wherein, the second set state includes the rubber 60 on the first side near the first limiting protrusion 312 in the initial position having a greater deformation than the rubber 60 on the second side near the first limiting protrusion 312 in the initial position.

[0080] When the first end of the rubber sheet 60 enters between the first support unit 31 and the pressing unit 42, the rubber sheet 60 between the first support unit 31 and another adjacent first support unit 31 downstream is shorter and lighter. As multiple first support units 31 transport the rubber sheet 60, the first end of the rubber sheet 60 may be dragged by the heavier rubber sheet 60 upstream, causing the first end of the rubber sheet 60 to slide with the first support unit 31. The first end of the rubber sheet 60 is dragged and stacked between the two first support units 31 upstream, causing the rubber sheet cooling system to stop.

[0081] In this way, the deformation of the rubber 60 on the first side of the first limiting protrusion 312 in the initial position is greater than the deformation of the rubber 60 on the second side near the first limiting protrusion 312 in the initial position. This allows the rubber 60 to form a tight, interlocking contact with the downstream side of the first limiting protrusion 312, which greatly increases the friction between the rubber 60 and the limiting protrusion. The tight deformation can restrict the relative movement between the rubber 60 and the limiting protrusion, thus preventing the conveyor line from stopping when the rubber 60 slides down and the limiting protrusion cannot be effectively locked in place when the first end of the rubber 60 enters between the first support unit 31 and the pressing unit 42.

[0082] Further, step S40 includes: steps S41, S42, and S43; and steps S10, S20, S30, S41, S42, S43, S50, S60, and S70 are executed sequentially.

[0083] Step S41: Based on the fact that the rubber sheet 60 upstream of the contact position closest to the initial position overlaps and hangs between two adjacent first support units 31 within a set range, the length of the rubber sheet 60 upstream of the first limiting protrusion 312 in the initial position is obtained. This accurately identifies the critical state at which the end of the rubber sheet 60 is about to enter the conveying section, providing data support for subsequent operations.

[0084] Step S42: Based on the fact that the length of the rubber 60 outside the moving area of ​​the first support unit 31 is less than or equal to a set length, the next first support unit 31 moves to a third set state; wherein, the third set state includes the next first support unit 31 moving to the initial position, and C > D; C is the distance between the first side of the next first support unit 31 and the bottom end of the pressing unit 42 along the feeding direction, and D is the distance between the second side of the next first support unit 31 and the bottom end of the pressing unit 42 along the feeding direction. The first side includes the side of the first limiting protrusion 312 near the downstream of the initial position, and the second side includes the side of the first limiting protrusion 312 near the upstream of the initial position. When C > D, as Figure 7 As shown, in the initial position, the side of the first limiting protrusion 312 closer to the downstream is farther from the pressing unit 42 than the side of the first limiting protrusion 312 closer to the upstream.

[0085] Step S43: During the process of pressing the rubber 60 by the pressing unit 42 until it abuts against the first limiting protrusion 312 of the first support unit 31, the deformation of the rubber 60 on the first side near the first limiting protrusion 312 in the initial position is smaller than the deformation of the rubber 60 on the second side near the first limiting protrusion 312 in the initial position.

[0086] When the end of the rubber sheet 60 enters between the first support unit 31 and the pressing unit 42, the rubber sheet 60 between the first support unit 31 and another adjacent first support unit 31 upstream is shorter and lighter. As multiple first support units 31 transport the rubber sheet 60, the end of the rubber sheet 60 may be dragged by the heavier rubber sheet 60 downstream, causing the end of the rubber sheet 60 to slide with the first support unit 31. The end of the rubber sheet 60 is dragged and stacked between the two downstream first support units 31, causing the rubber sheet cooling system to stop.

[0087] The greater deformation allows the rubber sheet 60 to form a tight, interlocking contact with the upstream side of the first limiting protrusion 312, which greatly increases the friction between the rubber sheet 60 and the limiting protrusion. The tight deformation can restrict the relative movement between the rubber sheet 60 and the limiting protrusion, thus preventing the conveyor line from stopping when the end of the rubber sheet 60 slides down and the limiting protrusion cannot be effectively locked in place when it enters between the first support unit 31 and the pressing unit 42.

[0088] Furthermore, the rubber cooling system also includes a second support unit 32; a plurality of first support units 31 and a plurality of second support units 32 are arranged alternately along the feeding direction; the projections of the first limiting protrusion 312 on the first support unit 31 and the second limiting protrusion 322 on the second support unit 32 on the pressing unit 42 are arranged at intervals along the axial direction of the pressing unit 42.

[0089] The next first support unit 31 moving to the initial position in step S40 includes: one first support unit 31 moving to the initial position, or one second support unit 32 moving to the initial position.

[0090] The contact points of the first limiting protrusion 312 and the second limiting protrusion 322 with the pressing unit 42 do not overlap, which can reduce fatigue damage to the surface of the pressing unit 42 caused by repeated compression of the same area. Moreover, the staggered arrangement of the first limiting protrusion 312 and the second limiting protrusion 322 increases the support area of ​​the rubber sheet 60 in the width direction, ensuring that the rubber sheet 60 is subjected to uniform force during transportation and reducing the risk of the rubber sheet 60 shifting in its own width direction.

[0091] The application of external force by the first limiting protrusion 312 includes: the external force being applied by the first limiting protrusion 312 or the external force being applied by the second limiting protrusion 322. When the first support unit 31 moves to the initial position, the external force is applied by the first limiting protrusion 312, and when the second support unit 32 moves to the initial position, the external force is applied by the second limiting protrusion 322.

[0092] Example 2:

[0093] This application also proposes a rubber cooling system; the rubber cooling system is applied to any of the rubber cooling methods described in Embodiment 1. For example... Figure 2 As shown, the rubber cooling system includes a frame assembly 10, a conveying assembly 20, multiple first support units 31, a pressing unit 42, and a rubber sheet 60.

[0094] The conveying assembly 20 is connected to the frame assembly 10. The pressing unit 42 is connected to the frame assembly 10. The frame assembly 10 supports and fixes the conveying assembly 20 and the pressing unit 42, providing a stable support foundation for the rubber cooling system.

[0095] like Figure 3 and Figure 4As shown, the first support unit 31 includes a first support frame 311 and a first limiting protrusion 312; one end of the first support frame 311 is connected to the conveying assembly 20, and the other end extends away from the conveying assembly 20; multiple first support frames 311 are arranged sequentially at intervals along the feeding direction of the conveying assembly 20; the first limiting protrusion 312 is connected to the side of the first support frame 311 away from the conveying assembly 20; the conveying assembly 20 drives all the first support frames 311 to move along the feeding direction. Multiple spaced first support units 31 move synchronously and support the rubber sheet 60 respectively. More first support units 31 can distribute the weight of the rubber sheet 60, reduce the amount of sag of the rubber sheet 60, and prevent the rubber sheet 60 from sag too much between two adjacent first support units 31. At the same time, multiple first support units 31 abut against the rubber sheet 60 through first limiting protrusions 312, increasing the contact area with the rubber sheet 60 and increasing the friction with the rubber sheet 60. This can further reduce the sliding between the rubber sheet 60 and the first support units 31, thereby preventing the rubber sheet 60 from sliding against the first limiting protrusions 312 and causing the rubber sheet 60 to stack between two adjacent first support units 31.

[0096] The working state of the rubber cooling method includes: the pressing unit 42 presses the rubber 60 until it abuts against the first limiting protrusion 312, and the rubber 60 deforms at the abutment position against the first limiting protrusion 312. Then, the first support unit 31 drives the rubber 60 at the abutment position against the first limiting protrusion 312 to move along the feeding direction at a first speed, and the rubber 60 upstream of the abutment position closest to the initial position moves along the feeding direction at a second speed; wherein, the first speed is less than the second speed. The pressing force of the pressing unit 42 forces the rubber 60 to deform and adhere to the first limiting protrusion 312. The deformed rubber 60 and the limiting protrusion form a stable contact point, so that the rubber 60 is tightly attached to the first support unit 31, reducing the relative movement between the rubber 60 and the first support unit 31 during the conveying process, providing sufficient friction for subsequent operations, and ensuring the stable transmission of conveying power. The speed difference design makes the downstream rubber sheet 60 move slower than the rubber sheet 60 entering between the first support unit 31 and the pressing unit 42, causing the rubber sheet 60 between two adjacent first support units 31 to hang down naturally. This results in more rubber sheets 60 between two adjacent first support units 31, making it easier for the cooling component 50 to cool more rubber sheets 60, thereby improving the cooling efficiency of the cooling system.

[0097] Furthermore, the rubber cooling system includes a support assembly 30; such as Figure 4As shown, the support assembly 30 includes multiple first support units 31 and multiple second support units 32; the second support unit 32 includes a second support frame 321 and a second limiting protrusion 322; one end of the second support frame 321 is connected to the conveying assembly 20, and the other end extends away from the conveying assembly 20; the second limiting protrusion 322 is connected to the side of the second support frame 321 away from the conveying assembly 20; the multiple first support frames 311 are arranged sequentially at intervals along the feeding direction; the conveying assembly 20 drives all the second support frames 321 to move along the feeding direction; the multiple first support frames 311 and the multiple second support frames 321 are arranged sequentially and alternately along the feeding direction; the projections of the first limiting protrusion 312 and the second limiting protrusion 322 on the pressing unit 42 are arranged at intervals along the axial direction of the pressing unit 42. The contact points of the first limiting protrusion 312 and the second limiting protrusion 322 with the pressing unit 42 do not overlap, which can reduce fatigue damage to the surface of the pressing unit 42 caused by repeated compression of the same area. Furthermore, the staggered arrangement of the first limiting protrusion 312 and the second limiting protrusion 322 increases the support area of ​​the rubber sheet 60 in the width direction, ensuring that the rubber sheet 60 is subjected to uniform force during conveying and reducing the risk of the rubber sheet 60 shifting in its own width direction.

[0098] The working state also includes: after the pressing unit 42 presses the rubber 60 to abut against the first limiting protrusion 312 of the first support unit 31 and the rubber 60 deforms at the abutment position of the first limiting protrusion 312, the second support frame 321 moves along the feeding direction to the initial position, and the pressing unit 42 presses the rubber 60 to abut against the second limiting protrusion 322 and the rubber 60 deforms at the abutment position of the second limiting protrusion 322.

[0099] In other embodiments, the conveying assembly 20 includes a first driving unit 21, a driving disk 22, and a driving belt 23; the driving belt 23 is sleeved on the driving disk 22; the driving disk 22 is drivenly connected to the first driving unit 21. A first support frame 311 and a plurality of second support frames 321 are arranged alternately at intervals along the feeding direction of the driving belt 23.

[0100] In other embodiments, such as Figure 5As shown, the rubber cooling system includes a pressing assembly 40, which includes a drive unit 41, a braking unit 43, and a pressing unit 42. The drive unit 41 includes a second drive section 411, a connecting ring 412, and a slide groove 413. The pressing unit 42 includes a central shaft 421 and an elastic cylinder 422. The elastic cylinder 422 is sleeved on the outer wall of the central shaft 421. The central shaft 421 is rotatably connected to the inner circumferential wall of the connecting ring 412. The connecting ring 412 is movably disposed in the slide groove 413 in the vertical direction. The connecting ring 412 is drivenly connected to the second drive section 411. The second drive section 411 drives the connecting ring 412 to move up and down, thereby causing the central shaft 421 to drive the elastic cylinder 422 to move up and down, so that the elastic cylinder 422 can abut against the rubber 60. The braking unit 43 is used to brake the rotation of the elastic cylinder 422.

[0101] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A method for cooling rubber, characterized in that, The rubber cooling method includes the following steps: S10: Based on the cooling command trigger, the starting end of the rubber sheet passes through the gap between the first support unit and the pressing unit at the initial position; S20: The pressing unit presses the rubber sheet until it abuts against the first limiting protrusion of the first support unit; wherein, the rubber sheet deforms at the abutment position with the first limiting protrusion; S30: The first support unit drives the rubber sheet to move at a first speed along the feeding direction at the point where it abuts the first limiting protrusion, and the rubber sheet upstream of the abutment position closest to the initial position moves at a second speed along the feeding direction; wherein, the first speed is less than the second speed; a plurality of first support units are arranged sequentially at intervals along the feeding direction; all first support units move synchronously along the feeding direction.

2. The method for cooling rubber according to claim 1, characterized in that, The rubber cooling method further includes the following steps: S40: Based on the fact that the rubber sheet upstream of the contact position closest to the initial position overlaps and falls between two adjacent first support units by a set range, the next first support unit moves to the initial position; S50: The pressing unit presses the rubber sheet until it abuts against the first limiting protrusion of the first support unit; S60: The first support unit drives the rubber sheet to move at a first speed along the feeding direction at the contact point with the first limiting protrusion, and the rubber sheet upstream of the contact point closest to the initial position moves at a second speed along the feeding direction. S70 repeats the above steps S40, S50, and S60.

3. The method for cooling rubber according to claim 2, characterized in that, Step S30 includes the following steps: S31: The rubber sheet upstream of the contact position closest to the initial position moves at a second speed along the feeding direction; S32: The cooling components drive the airflow in the space where the first support unit is located; S33: The first support unit drives the rubber sheet to move at a first speed along the feeding direction at the point where it abuts against the first limiting protrusion.

4. The rubber cooling method according to claim 3, characterized in that, During step S33, the first limiting protrusion causes the pressing unit to rotate through the force exerted by the rubber on the pressing unit.

5. The rubber cooling method according to claim 4, characterized in that, Step S33 includes the following steps: S331: The first support unit drives the rubber sheet to move at a first speed along the feeding direction at the point where it contacts the first limiting protrusion; S332: After the rubber sheet moves at the first speed for a set time, a braking force is applied to stop the pressing unit from rotating; S333: Based on the fact that the external force on the pressing unit is greater than a set value, the braking force is canceled; wherein, the external force is applied by the first limiting protrusion.

6. The method for cooling rubber according to claim 1, characterized in that, S20 includes the following steps: S21: Obtain the length of the rubber sheet downstream of the first limiting protrusion in the initial position; S22: Based on the fact that the length of the rubber sheet is less than or equal to a set length, the first limiting protrusion in the initial position moves to a first set state; wherein, the first set state includes A < B; A is the distance between the first side of the first limiting protrusion in the initial position and the bottom end of the pressing unit in the vertical direction, B is the distance between the second side of the first limiting protrusion in the initial position and the bottom end of the pressing unit in the vertical direction, the first side includes the side of the first limiting protrusion near the downstream of the initial position, and the second side includes the side of the first limiting protrusion near the upstream of the initial position; S23: The pressing unit squeezes the rubber sheet to abut against the first limiting protrusion of the first support unit to a second set state; wherein, the second set state includes the rubber sheet deformation on the first side near the first limiting protrusion in the initial position being greater than the rubber sheet deformation on the second side near the first limiting protrusion in the initial position.

7. The method for cooling rubber according to claim 2, characterized in that, Step S40 includes the following steps: S41: Based on the fact that the rubber sheet upstream of the contact position closest to the initial position overlaps and falls between two adjacent first support units by a set range, the length of the rubber sheet upstream of the first limiting protrusion in the initial position is obtained. S42: Based on the fact that the length of the rubber outside the moving area of ​​the first support unit is less than or equal to a set length, the next first support unit moves to a third set state; wherein, the third set state includes the next first support unit moving to the initial position, and C > D; C is the distance between the first side of the next first support unit and the bottom end of the pressing unit along the feeding direction, D is the distance between the second side of the next first support unit and the bottom end of the pressing unit along the feeding direction, the first side includes the side of the first limiting protrusion near the downstream of the initial position, and the second side includes the side of the first limiting protrusion near the upstream of the initial position; S43: During the process of the pressing unit squeezing the rubber sheet to abut against the first limiting protrusion of the first support unit, the deformation of the rubber sheet on the first side near the first limiting protrusion in the initial position is less than the deformation of the rubber sheet on the second side near the first limiting protrusion in the initial position.

8. The method for cooling rubber according to claim 5, characterized in that, The rubber cooling system also includes a second support unit; a plurality of first support units and a plurality of second support units are arranged alternately along the feeding direction; the projections of the first limiting protrusion on the first support unit and the second limiting protrusion on the second support unit onto the pressing unit are arranged axially along the pressing unit; The next first support unit moving to the initial position in step S40 includes: one first support unit moving to the initial position, or one second support unit moving to the initial position; The external force being applied by the first limiting protrusion includes: the external force being applied by the first limiting protrusion, or the external force being applied by the second limiting protrusion.

9. A rubber cooling system, characterized in that, The rubber cooling system is applied to a rubber cooling method according to any one of claims 1-8; the rubber cooling system comprises: Framework components; A conveying assembly, which is connected to the frame assembly; Multiple first support units are provided, each first support unit including a first support frame and a first limiting protrusion; one end of the first support frame is connected to the conveying assembly, and the other end extends away from the conveying assembly; multiple first support frames are arranged at intervals along the feeding direction of the conveying assembly; the first limiting protrusion is connected to the side of the first support frame away from the conveying assembly; the conveying assembly drives all the first support frames to move along the feeding direction; A pressing unit, which is connected to the frame assembly; Rubber; The working state of the rubber cooling method includes: after the pressing unit squeezes the rubber to abut against the first limiting protrusion and the rubber deforms at the abutment position against the first limiting protrusion, the first support unit drives the rubber at the abutment position against the first limiting protrusion to move along the feeding direction at a first speed, and the rubber upstream of the abutment position closest to the initial position moves along the feeding direction at a second speed; wherein, the first speed is less than the second speed.

10. A rubber cooling system according to claim 9, characterized in that, The rubber cooling system includes a support assembly; the support assembly includes multiple first support units and multiple second support units; each second support unit includes a second support frame and a second limiting protrusion; one end of the second support frame is connected to the conveying assembly, and the other end extends away from the conveying assembly; the second limiting protrusion is connected to the side of the second support frame away from the conveying assembly; multiple first support frames are arranged at intervals along the feeding direction; the conveying assembly drives all second support frames to move along the feeding direction; multiple first support frames and multiple second support frames are arranged alternately along the feeding direction; the projections of the first limiting protrusion and the second limiting protrusion on the pressing unit are arranged at intervals along the axial direction of the pressing unit; The working state further includes: after the pressing unit squeezes the rubber sheet to abut against the first limiting protrusion of the first support unit and the rubber sheet deforms at the abutment position of the first limiting protrusion, the second support frame moves along the feeding direction to the initial position, and the pressing unit squeezes the rubber sheet to abut against the second limiting protrusion and the rubber sheet deforms at the abutment position of the second limiting protrusion.

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