A runner damper

Abstract

This utility model provides a flow channel damping device, comprising: a flow divider component disposed within the flow channel, opposite to the inlet of the flow channel, which divides the fluid flowing through it to both sides; and a damping block disposed at a distance from the flow divider component within the flow channel, located on the side of the flow divider component away from the inlet. The damping block includes guide surfaces disposed on opposite sides of the damping block, with the divided fluid flowing through the guide surfaces on opposite sides of the damping block. The damping block is rotatably connected to the flow channel, so that when the divided fluid presses against either guide surface, the damping block swings. This flow channel damping device solves the technical problem in related technologies where the flow channel damping block cannot effectively divide the rubber material during extrusion, resulting in fluctuations and substandard dimensions of the extruded rubber material or extruded components.

Description

Technical Field

[0001] This utility model relates to the field of tire production equipment technology, specifically to a flow channel damping device. Background Technology

[0002] In rubber tire production, extruders play a crucial role as essential rubber machinery. The design of each component of the extruder directly affects the quality of the produced tires. When producing large rubber components such as tire treads or sidewalls in the extrusion process, the extruder's die-head flow channel device plays a decisive role in the extrusion flow and shape of the rubber compound; therefore, the design of the flow channel is particularly important.

[0003] Currently, extruders are equipped with damping blocks in their flow channels to divert the rubber compound, ensuring that the shape and extrusion volume of the extruded compound meet production process requirements. However, when producing rubber components with large widths and thicknesses, the damping blocks in the flow channels often fail to effectively divert the rubber compound, resulting in fluctuations and non-compliance in the shape of the extruded compound or the dimensions of the extruded components. Therefore, it is necessary to design and adjust the extruder flow channels to achieve uniform rubber compound flow and stable extrusion volume.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a flow channel damping device to solve the technical problem in the related technology that when the extruder produces rubber parts with large width and thickness, the flow channel damping block cannot effectively divert the rubber material during the production process, resulting in fluctuations and unqualified rubber material shape or rubber part size after extrusion.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a flow channel damping device is provided, comprising: a flow diversion component, which is disposed within the flow channel and is positioned opposite to the inlet of the flow channel, the flow diversion component diverting the fluid flowing through it to both sides of the flow diversion component; and a damping block, which is disposed at intervals with the flow diversion component within the flow channel, the damping block being disposed on the side of the flow diversion component away from the inlet, the damping block including guide surfaces disposed on opposite sides of the damping block, the diverted fluid flowing through the guide surfaces on opposite sides of the damping block, the damping block being rotatably connected to the flow channel, so that the damping block swings when the diverted fluid squeezes the guide surface on either side.

[0007] Furthermore, the damping block includes a damping section located at one end of the damping block near the feed inlet. The damping section is used to block the diverted fluid on the corresponding side when the damping block swings.

[0008] Furthermore, the damping part includes a first sidewall, which is an arc-shaped surface.

[0009] Furthermore, the damping block includes a second sidewall located at the end of the damping block away from the feed inlet, and a guide surface extends from the damping portion to the second sidewall.

[0010] Furthermore, the guide surface includes the following interconnected components: a first guide surface located on the side of the damping block near the damping part, the first guide surface being inclined and gradually inclined away from the flow channel sidewall along the flow direction of the fluid; and a second guide surface located on the side of the damping block away from the second sidewall, with a preset included angle between the second guide surface and the first guide surface.

[0011] Furthermore, a guide groove is formed at the intersection of the second guide surface and the first guide surface. The guide groove is recessed and extends from the damping part to the top surface of the damping block.

[0012] Furthermore, the second sidewall gradually slopes towards the bottom of the flow channel along the direction of fluid flow.

[0013] Furthermore, the flow channel damping device includes: a first mounting hole, which is formed in the flow channel and has a first internal thread; a second mounting hole, which is formed on the damping block; and a fastening component, which has an external thread that matches the first internal thread. The fastening component passes through the first mounting hole and the second mounting hole respectively to fix the damping block on the flow channel.

[0014] Furthermore, a bearing is installed inside the damping block. The bearing is coaxially arranged with the fastening component. The inner ring of the bearing is connected to the fastening component, and the outer ring of the bearing is embedded in the damping block.

[0015] Furthermore, the flow channel damping device includes a base, which is fixedly installed in the flow channel. A flow diversion component is provided at one end of the base near the feed inlet, and a mounting platform for supporting the damping block is provided at the other end of the base away from the feed inlet. A third mounting hole is provided on the mounting platform, and a second internal thread matching the external thread is provided in the third mounting hole. A fastening component is installed in the third mounting hole. Beneficial effects: 1. The flow channel damping device in this embodiment is applied to the extruder flow channel. During the extrusion process, the flow channel damping device can dynamically adjust the flow area of ​​the flow channels on both sides of the diverted rubber material, automatically adjusting the flow rate and pressure of the rubber material on both sides of the damping device to be more consistent, thereby achieving uniform extruded rubber material shape, reducing the dimensional fluctuation of the rubber parts, and improving product quality. When the rubber material feed rate fluctuates, changes in the rubber material feed rate and flow pressure occur on both sides of the damping block. The damping block then swings, causing changes in the feed rate, which plays a role in regulating the flow rate and pressure of the rubber material on both sides of the damping block. This solves the technical problem in related technologies where, when extruders produce rubber material parts with large width and thickness, the flow channel damping block cannot effectively divert the rubber material during the production process, resulting in frequent fluctuations in the shape of the extruded rubber material or the dimensions of the rubber parts, leading to unqualified products.

[0016] 2. In order to enhance the damping effect and the ability to block the fluid during the oscillation process of the damping block, a damping part is provided at one end of the damping block near the feed inlet. When the damping block oscillates, the damping part extends into or near the flow channel formed by the diversion component and the flow channel sidewall, thereby directly blocking the diverted fluid on the corresponding side. This blocking effect increases the resistance to fluid flow and further enhances the damping effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the flow channel damping device used in an embodiment of this utility model; Figure 2 This is a first-view structural schematic diagram of the damping block of the flow channel damping device used in this embodiment of the utility model; Figure 3 This is a second-view structural schematic diagram of the damping block of the flow channel damping device used in this embodiment of the utility model; Figure 4 This is a schematic diagram of the internal structure of the damping block of the flow channel damping device used in this embodiment of the utility model; Figure 5 This is a schematic diagram of the flow channel structure of the flow channel damping device used in this embodiment of the utility model.

[0018] The above figures include the following reference numerals: 1. Diverting component; 2. Flow channel; 21. Feed inlet; 3. Damping block; 31. Guide surface; 311. First guide surface; 312. Second guide surface; 313. Flow guide groove; 32. Damping part; 33. Second side wall; 41. First mounting hole; 42. Second mounting hole; 43. Third mounting hole; 45. Bearing; 5. Base; 51. Mounting platform. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] According to an embodiment of this utility model, a flow channel damping device is provided. Please refer to [link / reference]. Figures 1 to 5 The system includes: a diversion component 1, which is disposed within a flow channel 2 and is positioned opposite to the inlet 21 of the flow channel 2. The diversion component 1 diverts the fluid flowing through it to both sides of the diversion component 1; and a damping block 3, which is disposed at a distance from the diversion component 1 within the flow channel 2. The damping block 3 is disposed on the side of the diversion component 1 away from the inlet 21. The damping block 3 includes guide surfaces 31 disposed on opposite sides of the damping block 3. Diverted fluid flows through the guide surfaces 31 on opposite sides of the damping block 3. The damping block 3 is rotatably connected to the flow channel 2 so that the damping block 3 swings when the diverted fluid squeezes either side of the guide surface 31.

[0021] Specifically, the diversion component 1 diverts the fluid flowing in from the inlet 21, guiding the originally concentrated fluid flow and distributing it evenly to both sides of the diversion component 1 itself.

[0022] Specifically, the guide surfaces 31 on both sides of the damping block 3 directly contact the diverted fluid and guide its flow direction. When the diverted fluid flows through and acts on the guide surface 31 on either side of the damping block 3, it generates fluid dynamic pressure and applies it to the guide surface 31. Since the damping block 3 is installed in the flow channel 2 through a rotatable connection, the damping block 3 can swing around its rotation axis under the asymmetrical action of the fluid pressure, thereby causing the damping block 3 to swing. This swinging ability allows the damping block 3 to adjust its own posture in real time according to the dynamic changes of the fluid pressure on both sides, thereby dynamically adjusting the flow area of ​​the flow channels on both sides to maintain the balance of fluid distribution.

[0023] The flow channel damping device in this embodiment is applied to the extruder flow channel. During the extrusion process, the flow channel damping device can dynamically adjust the flow area of ​​the flow channels on both sides of the diverted rubber material, automatically adjusting the flow rate and pressure of the rubber material on both sides of the damping device to be more consistent, thereby achieving uniform extruded rubber material shape, reducing the dimensional fluctuation of the rubber parts, and improving product quality. When the rubber material feed rate fluctuates, the rubber material feed rate and flow pressure on both sides of the damping block 3 change, causing the damping block 3 to swing, thus changing the feed rate and regulating the flow rate and pressure of the rubber material on both sides of the damping block 3. This solves the technical problem in related technologies where, when extruders produce rubber material parts with large width and thickness, the flow channel damping block cannot effectively divert the rubber material during production, resulting in frequent fluctuations in the shape of the extruded rubber material or the size of the rubber parts, leading to unqualified products.

[0024] In the flow channel damping device of this embodiment, see Figure 2-3 The damping block 3 includes a damping part 32, which is located at one end of the damping block 3 near the feed inlet 21. The damping part 32 is used to block the fluid after diversion on the corresponding side when the damping block 3 swings.

[0025] To enhance the damping effect and fluid blocking ability of the damping block 3 during the oscillation process, a damping part 32 is provided at one end of the damping block 3 near the feed inlet 21. When the damping block 3 oscillates, the damping part 32 extends into or near the flow channel formed by the diversion component 1 and the flow channel sidewall, thereby directly blocking the diverted fluid on the corresponding side. This blocking effect increases the resistance to fluid flow and further enhances the damping effect.

[0026] When the flow channel damping device in this embodiment is applied to the flow channel of an extruder, when the rubber material flows to the damping block 3, the side with a larger flow rate or flow pressure of the rubber material squeezes the damping block 3, and the fluid on the side with a larger flow rate squeezes the guide surface 31 on the corresponding side. The damping block 3 will be biased towards the side with a smaller flow rate or flow pressure of the rubber material, so that the damping part 32 at the front end of the damping block 3 moves out to the side with a larger flow rate or flow pressure of the rubber material, thereby reducing the flow rate or flow pressure of the rubber material on the side with a larger flow rate or flow pressure.

[0027] In the flow channel damping device of this embodiment, see Figure 2 The damping part 32 includes a first sidewall, which is an arc-shaped surface. Specifically, the arc-shaped surface can effectively guide the flow, ensuring that the damping part 32 can block the flow while the fluid can effectively pass through the flow channel, thus ensuring the extrusion efficiency of the extruder.

[0028] In the flow channel damping device of this embodiment, see Figure 2-3 The damping block 3 includes a second sidewall 33 located at the end of the damping block 3 away from the feed inlet 21, and the guide surface 31 extends from the damping part 32 to the second sidewall 33.

[0029] Specifically, the guide surface 31 extends continuously from the damping part 32 region to the second side wall 33, forming a complete guide surface covering most of the sides of the damping block 3. This ensures that the diverted fluid flowing out of the diversion component 1 can flow continuously and smoothly along the guide surface 31 until it flows through most of the length of the damping block 3, thereby enabling the damping block 3 to sensitively adjust its own posture in real time according to the dynamic changes in the fluid pressure on both sides.

[0030] In the flow channel damping device of this embodiment, see Figure 2-3 The guide surface 31 includes the following interconnected components: a first guide surface 311, which is located on the side of the damping block 3 near the damping part 32, and is inclined along the flow direction of the fluid, gradually tilting away from the flow channel sidewall; and a second guide surface 312, which is located on the side of the damping block 3 away from the second sidewall 33, and a preset included angle is provided between the second guide surface 312 and the first guide surface 311. By setting a first guide surface, the fluid first contacts the first guide surface, and then the first guide surface 311 can guide the fluid to the center of the flow channel or the top surface of the damping block, as well as the second guide surface 312, so that the fluid can flow continuously and smoothly along the first guide surface 311 and the second guide surface 312, increasing the contact area between the fluid and the guide surface. As the fluid flows, the first guide surface 311 and the second guide surface 312 will be squeezed by the fluid, which will cause the damping block to swing, so that the damping block 3 can sensitively adjust its own posture in real time according to the dynamic changes of the fluid pressure on both sides. On the other hand, the concave surface shape can reduce the overall volume of the damping block, thereby ensuring the flow rate and velocity of the fluid and improving the dispensing efficiency.

[0031] In the flow channel damping device of this embodiment, see Figure 2-3 A flow guide groove 313 is formed at the intersection of the second guide surface 312 and the first guide surface 311. The flow guide groove 313 is recessed and extends from the damping part 32 to the top surface of the damping block 3. Specifically, the flow guide groove 313 can guide the fluid to the center of the flow channel, the top surface of the damping block 3, and the second guide surface 312.

[0032] Preferably, the guide channel 313 is an arc-shaped channel surface. The arc-shaped surface can play a better guiding role, allowing the fluid to pass through the flow channel effectively and ensuring extrusion efficiency.

[0033] In the flow channel damping device of this embodiment, see Figure 2-3The second sidewall 33 gradually slopes towards the bottom of the flow channel 2 along the direction of fluid flow. In this way, the second sidewall 33 mainly serves to guide the flow, directing the fluid above the damping block 3 to the bottom of the flow channel 2, so that the fluid can flow out smoothly from the outlet, forming a regular shape and avoiding product quality problems such as grooves.

[0034] It is understood that the flow channel damping device in this embodiment forms a "fin-shaped diverter," which resembles a "fish fin" and has the effect of diverting flow and reducing the resistance of the rubber material flow. The damping block 3 is made of hard alloy and has a relatively smooth surface; the two sides of the damping block 3 are symmetrical, and the side has an arc-shaped guide surface and a guide groove 313. After the rubber material is diverted from the diverting component 1, the rubber material diverted from both sides flows along the guide groove 313 and the arc-shaped guide surface, respectively.

[0035] In the flow channel damping device of this embodiment, see Figure 4-5 The flow channel damping device includes: a first mounting hole 41, which is formed in the flow channel 2 and has a first internal thread; a second mounting hole 42, which is formed on the damping block 3; and a fastening component, which has an external thread that matches the first internal thread. The fastening component passes through the first mounting hole 41 and the second mounting hole 42 to fix the damping block 3 to the flow channel 2. With the above structure, the damping block 3 is installed in the flow channel 2, and the damping block 3 oscillates around the fastening component as the rotation center.

[0036] Preferably, the damping part 32 is located at the end of the fastening component near the feed inlet 21, that is, at the front end of the rotation center, while the main part of the guide surface is located at the rear end of the rotation center. In this way, when the damping block 3 swings, the rear end of the damping block 3 can be biased towards the side with a smaller flow rate or flow pressure of the rubber material, so that the front end of the damping block 3 moves out to the side with a larger flow rate or flow pressure of the rubber material, so that the head and tail of the damping block are in opposite directions.

[0037] In the flow channel damping device of this embodiment, see Figure 4 A bearing 45 is installed inside the damping block 3. The bearing 45 is coaxially arranged with the fastening component. The inner ring of the bearing 45 is connected to the fastening component, and the outer ring of the bearing 45 is embedded in the damping block 3. By setting the bearing, the frictional force when the damping block 3 rotates relative to the flow channel 2 is reduced. The damping block can maintain smooth rotation and sensitively adjust its own posture in real time according to the dynamic changes in the fluid pressure on both sides.

[0038] In some embodiments, the width of the damping block 3 gradually increases along the direction away from the feed inlet, and the width of the damping block 3 matches the width of the flow channel, so that the distance between the damping block 3 and the sidewall of the flow channel remains relatively constant.

[0039] In the flow channel damping device of this embodiment, see Figure 1 or Figure 4 The flow channel damping device includes a base 5, which is fixedly installed in the flow channel 2. A flow divider 1 is located at one end of the base 5 near the inlet 21, and a mounting platform 51 for supporting the damping block 3 is located at the other end of the base 5 away from the inlet 21. A third mounting hole 43 is provided on the mounting platform 51, and a second internal thread matching the external thread is provided in the third mounting hole 43. A fastening component is installed in the third mounting hole 43. Thus, by setting the base 5, the relative position of the damping block 3 and the flow divider 1 can be kept fixed. With the damping block 3 mounted on the base 5 and the base 5 fixedly installed in the flow channel 2, the fluid entering from the inlet can be immediately and effectively dispersed and guided before passing through the opposite sides of the damping block 3.

[0040] It should be noted that the first mounting hole 41, the second mounting hole 42, and the third mounting hole 43 are coaxially arranged, and the top surface of the mounting platform 51 is a flat plane.

[0041] In some embodiments, both the base 5 and the damping block 3 are supported by hard alloy material.

[0042] It should be noted that when the damping block 3 swings, the damping part 32 needs to protrude from the outer wall of the mounting platform 51 so that the damping part 32 extends into or near the flow channel formed by the diversion component 1 and the flow channel sidewall.

[0043] In the flow channel damping device of this embodiment, see Figure 4 The diverting component 1 has a relief groove on its arc-shaped surface. The shape of the relief groove matches the arc-shaped surface of the first sidewall of the damping block 3, and the relief groove contains at least part of the damping block 3. In this way, the end of the diverting component 1 near the damping block 3 is arc-shaped and fits with the front end of the damping block 3, which can prevent the damping block 3 from interfering with the diverting component 1 during the swinging process, so that the damping block 3 can swing smoothly.

[0044] Thus, the flow divider 1 has an arc-shaped surface on the side near the feed inlet 21. The arc-shaped surface is used to divide the fluid. The rubber material conveyed by the screw end is divided by the flow divider damping block, so that the rubber material flows to both sides.

[0045] When the flow channel damping device in this embodiment is applied to the extruder flow channel, when the rubber material flows to the damping block 3, the side with a larger rubber material flow rate or pressure squeezes the damping block 3, causing the damping block 3 to shift towards the side with a smaller rubber material flow rate or pressure. This causes the damping part 32 to move out to the side with a larger rubber material flow rate or pressure, increasing the volume of the damping block with a larger rubber material flow rate or pressure, thereby reducing the rubber material feed rate and flow pressure on that side. As the feed rate on the side with a larger rubber material flow rate or pressure decreases, the rubber material flow rate and pressure on both sides of the damping block 3 tend to be consistent, and the damping block 3 returns to the center position. When the rubber material feed rate fluctuates, changes in the rubber material feed rate and flow pressure occur on both sides of the damping block 3, causing the damping block 3 to swing, thus changing the feed rate and regulating the rubber material flow rate and pressure on both sides of the damping block 3.

[0046] In the flow channel damping device of this embodiment, a novel flow channel damping device is designed to improve the flowability of the rubber material in the flow channel and reduce the resistance of the diverted rubber material during the flow extrusion process. The novel flow channel damping device can automatically adjust the pressure of the diverted rubber material, and automatically adjust the flow rate and pressure of the rubber material on both sides of the damping device to be consistent, so as to achieve uniform extrusion shape of the rubber material, reduce the dimensional fluctuation of the rubber parts, and improve product quality.

[0047] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0048] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0049] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0050] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0051] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A flow channel damping device, characterized in that, include: The flow divider (1) is disposed in the flow channel (2), and the flow divider (1) is disposed opposite to the feed inlet (21) of the flow channel (2). The flow divider (1) divides the fluid flowing through the flow divider (1) to both sides of the flow divider (1). A damping block (3) is disposed at a distance from the flow divider (1) in the flow channel (2). The damping block (3) is disposed on the side of the flow divider (1) away from the feed inlet (21). The damping block (3) includes guide surfaces (31) disposed on opposite sides of the damping block (3). Fluids after diversion flow through the guide surfaces (31) on opposite sides of the damping block (3). The damping block (3) is rotatably connected to the flow channel (2) so that the damping block (3) swings when the diverted fluid squeezes the guide surface (31) on either side.

2. The flow channel damping device according to claim 1, characterized in that, The damping block (3) includes a damping part (32), which is located at one end of the damping block (3) near the feed inlet (21). The damping part (32) is used to block the fluid after diversion on the corresponding side when the damping block (3) swings.

3. The flow channel damping device according to claim 2, characterized in that, The damping part (32) includes a first sidewall, which is an arc-shaped surface.

4. The flow channel damping device according to claim 2, characterized in that, The damping block (3) includes a second sidewall (33) located at the end of the damping block (3) away from the feed inlet (21), and the guide surface (31) extends from the damping part (32) to the second sidewall (33).

5. The flow channel damping device according to claim 4, characterized in that, The guide surface (31) includes interconnected surfaces: The first guide surface (311) is located on the side of the damping block (3) close to the damping part (32). The first guide surface (311) is inclined and gradually tilts away from the flow channel sidewall along the flow direction of the fluid. The second guide surface (312) is located on the side of the damping block (3) away from the second sidewall (33), and a preset angle is provided between the second guide surface (312) and the first guide surface (311).

6. The flow channel damping device according to claim 5, characterized in that, A flow guide groove (313) is formed at the intersection of the second guide surface (312) and the first guide surface (311). The flow guide groove (313) is recessed and extends from the damping part (32) to the top surface of the damping block (3).

7. The flow channel damping device according to claim 4, characterized in that, The second sidewall (33) gradually slopes toward the bottom of the flow channel (2) along the direction of fluid flow.

8. The flow channel damping device according to claim 1, characterized in that, The flow channel damping device includes: The first mounting hole (41) is opened in the flow channel (2), and the first mounting hole (41) is provided with a first internal thread; The second mounting hole (42) is formed on the damping block (3); The fastening component is provided with an external thread that matches the first internal thread. The fastening component passes through the first mounting hole (41) and the second mounting hole (42) respectively to fix the damping block (3) on the flow channel (2).

9. The flow channel damping device according to claim 8, characterized in that, A bearing (45) is installed inside the damping block (3). The bearing (45) is coaxially arranged with the fastening component. The inner ring of the bearing (45) is connected to the fastening component, and the outer ring of the bearing (45) is embedded in the damping block (3).

10. The flow channel damping device according to claim 8, characterized in that, The flow channel damping device includes a base (5), which is fixedly installed in the flow channel (2). The flow divider (1) is provided at one end of the base (5) near the feed inlet (21), and the mounting platform (51) for supporting the damping block (3) is provided at the other end of the base (5) away from the feed inlet (21). A third mounting hole (43) is provided on the mounting platform (51), and a second internal thread matching the external thread is provided in the third mounting hole (43). The fastening component is installed in the third mounting hole (43).

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