Drying device based on composite felt preparation

By pretreating the composite felt using a self-adjusting and extrusion mechanism, the problems of long drying time and unstable finished product quality in the existing technology are solved, and an efficient and stable felt preparation process is achieved.

CN224230585UActive Publication Date: 2026-05-12SHANDONG YONGXIANG AUTOMOTIVE INTERIOR PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YONGXIANG AUTOMOTIVE INTERIOR PARTS CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing composite felt preparation equipment does not undergo sufficient pre-dehydration treatment, resulting in a long drying process, large equipment space occupation, and unstable finished product quality, making it difficult to meet high-quality production requirements.

Method used

The composite felt is pretreated by a self-adjusting mechanism and an extrusion mechanism. Excess moisture and air are squeezed out by the cooperation of the extrusion roller and the top and bottom rollers. The felt is then dried by precise control of the drying component to ensure that the moisture content of the felt is reduced and the transmission is stable.

Benefits of technology

It achieves efficient pretreatment, shortens drying time, improves the quality stability and production efficiency of finished felt products, and reduces equipment space occupation and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of composite felt preparation, and discloses a drying device based on composite felt preparation, which comprises a shell, the top of the shell is fixedly connected with a top cover, the two sides of the interior of the shell are respectively provided with a self-adjusting mechanism, the left side of the interior of the shell is provided with an extrusion mechanism, and the extrusion mechanism comprises two supporting frames. The farther sides of the two supporting frames are fixedly connected to the left side of the interior of the shell, angle wheels are fixedly connected to the two sides of the top of each supporting frame, the close sides of the supporting frames are in threaded connection with main rollers, and the farther sides of the supporting frames are fixedly connected with double-end hydraulic rods. In the utility model, the felt is guided by the angle wheel to enter the space between the main roller and the extrusion wheel, so that the pretreatment of the composite felt is realized, the moisture content of the felt is reduced, a treatment object with better conditions is provided for the subsequent drying process, the drying link is more efficient, and the quality of the felt finished product is more stable.
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Description

Technical Field

[0001] This utility model relates to the field of composite felt preparation technology, and in particular to a drying device used in the preparation of composite felt. Background Technology

[0002] Composite felt is widely used in various fields such as automotive interiors, industrial cushioning, and thermal insulation. Its preparation typically involves multiple processes including opening, extraction and purification, carbonization, carding, web formation, and bleaching, with drying being a crucial step. For example, in automotive interiors, composite felt needs to possess good shape stability, softness, and cleanliness; the drying process plays a vital role in ensuring these properties.

[0003] The drying equipment used in the preparation of composite felt typically consists of a conveying mechanism, a drying mechanism, and a control mechanism. The conveying mechanism drives the rollers to rotate via a motor, transporting the composite felt raw materials to the drying area. The drying mechanism uses electric heating to generate a high-temperature heat source, which causes the moisture in the felt to evaporate rapidly through heat conduction, convection, or radiation. The control mechanism integrates sensor signals to regulate parameters such as conveying speed and drying temperature.

[0004] In some of the aforementioned technologies, composite felts that have not undergone sufficient pre-dehydration treatment are directly transported to the drying process. This not only leads to excessively long evaporation time during the drying process, significantly extending the overall production cycle, but also requires the drying equipment to be equipped with more space to meet the long-term processing needs, increasing equipment costs and space occupation. At the same time, due to the uneven initial moisture content of the felts, local overheating or insufficient drying is prone to occur during drying, resulting in inconsistent quality and poor stability of the finished felts, making it difficult to meet the requirements of high-quality production. Therefore, a drying device based on the preparation of composite felts is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a drying device for the preparation of composite felt, which aims to improve the problem that some existing devices directly transport composite felt containing a lot of moisture to the drying process, resulting in a long drying time, a larger space requirement, and unstable quality of the finished felt.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drying device for preparing composite felt includes an outer shell, a top cover fixedly connected to the top of the outer shell, self-adjusting mechanisms on both sides of the inner interior of the outer shell, an extrusion mechanism on the left side of the inner interior of the outer shell, and two support frames. The far side of the two support frames is fixedly connected to the left side of the inner interior of the outer shell. Angle wheels are fixedly connected to the top two sides of the support frames. A main roller is threadedly connected to the near side of the support frames. A double-headed hydraulic rod is fixedly connected to the far side of the support frames. Connecting rods are fixedly connected to the output ends of the double-headed hydraulic rods on both sides. Extrusion wheels are rotatably connected to the outside of the connecting rods. Sliding rods are fixedly connected to the inside of the support frames. The two sides of the extrusion wheels are slidably connected to the outside of the sliding rods. A scraping component is fixedly connected to the bottom of the support frames, and a collecting component is fixedly connected to the bottom of the scraping component.

[0008] As a further description of the above technical solution:

[0009] The self-adjusting mechanism includes a support rod, the outer two sides of which are fixedly connected to the inside of the housing. Movable frames are fixedly connected to the top two sides of the support rod. Top rollers are slidably connected to the top of the adjacent side of the movable frames. Restricting bolts are threaded to the outer two sides of the top rollers. A telescopic spring is fixedly connected to the bottom of the restricting bolts. The outer side of the restricting bolts is slidably connected to the top inner side of the movable frames.

[0010] As a further description of the above technical solution:

[0011] A bottom roller is fixedly connected to the bottom of the adjacent side of the movable frame. Fixing bolts are threaded to both outer sides of the bottom roller. The outer threads of the fixing bolts are connected to the top of the support rod. The top of the fixing bolts is fixedly connected to the other end of the telescopic spring.

[0012] As a further description of the above technical solution:

[0013] The scraping assembly includes a limiting rod, the top of which is fixedly connected to the bottom of the support frame, a sleeve is slidably connected to the outside of the limiting rod, a tension spring is sleeved inside the sleeve, and an inclined scraper is fixedly connected to the outside of the sleeve.

[0014] As a further description of the above technical solution:

[0015] The collecting assembly includes a flow channel plate, the top of which is fixedly connected to the bottom of the sleeve, and a guide tube is fixedly connected to one outer end of the flow channel plate. The outer side of the guide tube is fixedly connected to the inside of the outer shell.

[0016] As a further description of the above technical solution:

[0017] A support roller is rotatably connected to the inside right side of the outer casing, and a drying assembly is fixedly connected to the inside of the outer casing;

[0018] As a further description of the above technical solution:

[0019] The drying assembly includes a controller, which is externally fixedly connected to the outside of the housing. A converter is fixedly connected to the output end of the controller, and a dryer is fixedly connected to the output end of the converter.

[0020] As a further description of the above technical solution:

[0021] The bottom of the converter is fixedly connected to the inner bottom side of the housing, and the outer sides of the dryer are fixedly connected to the inner wall of the housing.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the felt is guided by an angle wheel to enter between the main roller and the extrusion roller. Power is generated by a double-headed hydraulic rod to push the connecting rod, causing the extrusion roller to move towards the main roller under the guidance of the slide rod. The two work together to extrude the felt, squeezing out excess water and air, and shaping the felt. This achieves pretreatment of the composite felt to reduce the moisture content of the felt, providing better conditions for subsequent drying processes, making the drying process more efficient and the quality of the finished felt more stable.

[0024] 2. In this utility model, the movable frame provides a sliding track for the top roller, while the bottom roller is installed at the bottom of the movable frame by fixing bolts, forming a clamping channel with the top roller. When the thickness of the felt changes, the top roller slides along the movable frame. The limiting bolts cooperate with the telescopic spring to provide elastic support for the top roller and ensure its timely reset, thereby achieving stable support and guiding transmission of felt of different thicknesses. This solves the problem of offset, jamming, or even failure to transport normally during the transmission process due to inconsistent felt thickness. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the drying device for the preparation of composite felt proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the support frame of the drying device for the preparation of composite felt proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the inclined scraper of the drying device used in the preparation of composite felt proposed in this utility model.

[0028] Figure 4This is a schematic diagram of the movable frame of the drying device for the preparation of composite felt proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the dryer structure of the drying device for the preparation of composite felt proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the outer shell of the drying device for the preparation of composite felt proposed in this utility model.

[0031] Legend:

[0032] 1. Outer shell; 2. Top cover; 3. Extrusion mechanism; 31. Support frame; 32. Angle wheel; 33. Main roller; 34. Double-headed hydraulic rod; 35. Connecting rod; 36. Extrusion wheel; 37. Slide rod; 4. Scraping assembly; 41. Limiting rod; 42. Sleeve; 43. Tension spring; 44. Inclined scraper; 5. Collection assembly; 51. Flow channel plate; 52. Guide tube; 6. Self-adjusting mechanism; 61. Support rod; 62. Movable frame; 63. Top roller; 64. Limiting bolt; 65. Telescopic spring; 66. Bottom roller; 67. Fixing bolt; 7. Support roller; 8. Drying assembly; 81. Controller; 82. Converter; 83. Dryer. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1 to 3 The present invention provides an embodiment of a drying device for the preparation of composite felt, comprising a shell 1, which serves as the main frame of the entire drying device, providing an installation foundation and protective space, effectively preventing internal components from being interfered with or damaged by the external environment, and also providing a safe operating environment for operators. A top cover 2 is fixedly connected to the top of the shell 1, which serves to seal the top space of the shell 1, further enhancing the sealing of the device, preventing heat loss during the drying process, and also blocking dust, debris, etc. from entering the device, protecting the normal operation of the internal components. Self-adjusting mechanisms 6 are provided on both sides of the interior of the shell 1, and an extrusion mechanism 3 is provided on the left side of the interior of the shell 1.

[0035] The extrusion mechanism 3 includes two support frames 31, which are used for mounting and providing support force. The far side of the two support frames 31 is fixedly connected to the inside left side of the outer casing 1. Angle wheels 32 are fixedly connected to both sides of the top of the support frames 31. The angle wheels 32 are used to guide the conveying direction of the composite felt. A main roller 33 is threadedly connected to the near side of the support frames 31. The main roller 33 is used to perform preliminary extrusion and shaping of the composite felt. A double-headed hydraulic rod 34 is fixedly connected to the far side of the support frames 31. The double-headed hydraulic rod 34 provides power to the extrusion roller 36. By changing the pressure of the hydraulic system, the movement of the extrusion roller 36 is controlled, thereby adjusting the extrusion force on the composite felt to suit the desired effect. To meet the extrusion requirements of composite felts of different thicknesses and materials, connecting rods 35 are fixedly connected to both output ends of the double-headed hydraulic rod 34. The connecting rods 35 are used to transmit the power of the double-headed hydraulic rod 34. Extrusion wheels 36 are rotatably connected to the outside of the connecting rods 35. The extrusion wheels 36 cooperate with the main roller 33 to extrude the composite felt. Through their own rotation and movement, excess water and air in the composite felt are squeezed out, and the felt is shaped to achieve the required thickness and density. Slide rods 37 are fixedly connected inside the support frame 31. The slide rods 37 are used to provide sliding guidance for the extrusion wheels 36. The two sides of the extrusion wheels 36 are slidably connected to the outside of the slide rods 37.

[0036] A scraping assembly 4 is fixedly connected to the bottom of the support frame 31. The scraping assembly 4 includes a limiting rod 41, which guides and restricts the sleeve 42. The top of the limiting rod 41 is fixedly connected to the bottom of the support frame 31. A sleeve 42 is slidably connected to the outside of the limiting rod 41. The sleeve 42 is used to install a slanted scraper 44. A tension spring 43 is sleeved inside the sleeve 42, which provides elastic force to the sleeve 42 and the slanted scraper 44. The slanted scraper 44 is fixedly connected to the outside of the sleeve 42. 44 is used to scrape off and guide the moisture generated by the main roller 33 and the extrusion roller 36 squeezing the composite felt. The bottom of the scraping component 4 is fixedly connected to the collecting component 5, which includes a flow channel plate 51. The flow channel plate 51 is used to receive the moisture scraped off by the inclined scraper 44. The top of the flow channel plate 51 is fixedly connected to the bottom of the sleeve 42. One end of the flow channel plate 51 is fixedly connected to the guide pipe 52. The guide pipe 52 is used to guide the moisture on the flow channel plate 51 to the outside of the device. The outside of the guide pipe 52 is fixedly connected to the inside of the outer shell 1.

[0037] Reference Figure 1 and Figure 3The self-adjusting mechanism 6 includes a support rod 61, which serves as a support component and provides a stable mounting platform. The outer sides of the support rod 61 are fixedly connected to the interior of the outer casing 1. Movable frames 62 are fixedly connected to the top two sides of the support rod 61. The movable frames 62 serve as the mounting carriers for the top roller 63 and the bottom roller 66. They provide guiding space for the sliding of the top roller 63. The top roller 63 is slidably connected to the top of the adjacent side of the movable frame 62. The top roller 63 can slide vertically along the movable frame 62 according to changes in felt thickness. Limiting bolts 64 are threaded onto the outer sides of the top roller 63. The limiting bolts 64 limit the sliding range of the top roller 63, preventing it from sliding excessively and detaching from the movable frame 62. They also provide elastic support to the top roller 63 in conjunction with a telescopic spring 65, allowing the top roller 63 to flexibly adapt to changes in felt thickness. A telescopic spring 65 is fixedly connected to the bottom of the limiting bolts 64. The telescopic spring 65 generates elastic restoring force through its own compression or tension, assisting the top roller 63 in adjusting its position. Roller 63 is reset in time to ensure that the clamping force between top roller 63 and bottom roller 66 is always within a suitable range. The external sliding connection of limiting bolt 64 is on the top inner side of movable frame 62. Bottom roller 66 is fixedly connected to the bottom of adjacent side of movable frame 62. Bottom roller 66 cooperates with top roller 63 to form a clamping channel for composite felt, providing stable support and guidance during felt transmission. Fixing bolts 67 are threaded on both sides of the outside of bottom roller 66. Fixing bolts 67 are used to fix the position of bottom roller 66. The external thread of fixing bolt 67 is connected to the top of support rod 61. The top of fixing bolt 67 is fixedly connected to the other end of telescopic spring 65.

[0038] Reference Figure 1 , Figure 5 and Figure 6Inside the outer casing 1, on the right side, a support roller 7 is rotatably connected. The support roller 7 provides support and guidance during the transport of the composite felt. Inside the outer casing 1, a drying assembly 8 is fixedly connected. The drying assembly 8 includes a controller 81. The controller 81 receives external commands or sensor feedback and, according to a preset program or actual needs, precisely controls the entire drying process, such as adjusting drying temperature and time parameters, to ensure the drying process meets the drying requirements of the composite felt, achieving intelligent and automated drying operation. The controller 81 is externally fixedly connected to the outside of the outer casing 1, and its output terminal is fixed... A converter 82 is fixedly connected to the controller 81. The converter 82 converts and amplifies the control signal output by the controller 81 so that it can accurately drive the dryer 83 to work, ensuring that the dryer 83 operates according to the parameters set by the controller 81, and realizing precise control of drying power, temperature, etc. The output end of the converter 82 is fixedly connected to the dryer 83. Under the drive of the converter 82, the dryer 83 generates heat and heats and dries the composite felt in transit through heat transfer. The bottom of the converter 82 is fixedly connected to the inner bottom side of the outer shell 1, and the outer sides of the dryer 83 are fixedly connected to the inner wall of the outer shell 1.

[0039] Working principle: After the composite felt enters the drying device, it first passes through the self-adjusting mechanism 6 on the left side inside the outer shell 1. The top roller 63 in the movable frame 62 on both sides of the top of the support rod 61 slides on the top of the movable frame 62 on the side close to each other. The bottom roller 66 is fixed at the bottom of the movable frame 62 on the side close to each other and is connected to the top of the support rod 61 by the fixing bolt 67, forming a stable clamping channel with the top roller 63. When the thickness of the felt changes, the top roller 63 slides vertically along the movable frame 62. The limiting bolt 64 is threaded on both sides of the top roller 63 and works with the telescopic spring 65 to provide elastic support for the top roller 63 and ensure its timely reset, thus providing stable support and guiding transmission for the felt.

[0040] Subsequently, the composite felt reaches between the main roller 33 and the extrusion roller 36 through the angle wheel 32 of the extrusion mechanism 3. The main roller 33 is threadedly connected to the side of the support frame 31 that is close to it. The extrusion roller 36 is connected to the double-headed hydraulic rod 34 fixed on the side of the support frame 31 that is far away through the connecting rod 35. According to the thickness and material of the felt, the double-headed hydraulic rod 34 changes the pressure through the hydraulic system, pushes the connecting rod 35, and causes the extrusion roller 36 to move towards the main roller 33 under the guidance of the slide rod 37. The two work together to extrude the felt.

[0041] During the extrusion process, the limiting rod 41 of the scraping component 4 is fixed to the bottom of the support frame 31, and the sleeve 42 slides outside the limiting rod 41. The tension spring 43 inside provides elastic force to the sleeve 42, so that the inclined scraper 44 fixed to the outside of the sleeve 42 is in close contact with the felt surface, scraping off the residual moisture of the felt. The scraped residue falls onto the flow channel plate 51 fixed to the bottom of the sleeve 42. After being collected by the flow channel plate 51, it flows into the guide pipe 52 through one end connected to the flow channel plate 51 and is discharged outside the device.

[0042] The extruded felt enters the drying assembly 8. The controller 81 receives external instructions to control the converter to drive the dryer 83 to work. The dryer 83 generates heat and heats and dries the felt in transit evenly through heat transfer.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drying device for the preparation of composite felt, comprising a shell (1), characterized in that: The top of the outer shell (1) is fixedly connected to a top cover (2), and self-adjusting mechanisms (6) are provided on both sides of the interior of the outer shell (1). An extrusion mechanism (3) is provided on the left side of the interior of the outer shell (1). The extrusion mechanism (3) includes two support frames (31). The far side of the two support frames (31) is fixedly connected to the inside left side of the outer shell (1). Angle wheels (32) are fixedly connected to the top two sides of the support frames (31). A main roller (33) is threadedly connected to the near side of the support frames (31). A double-headed hydraulic rod (34) is fixedly connected to the far side of the support frames (31). A connecting rod (35) is fixedly connected to the output ends of the double-headed hydraulic rod (34). An extrusion wheel (36) is rotatably connected to the outside of the connecting rod (35). A slide rod (37) is fixedly connected inside the support frames (31). The two sides of the extrusion wheel (36) are slidably connected to the outside of the slide rod (37). A scraping assembly (4) is fixedly connected to the bottom of the support frames (31). A collecting assembly (5) is fixedly connected to the bottom of the scraping assembly (4).

2. The drying device for composite felt preparation according to claim 1, characterized in that: The self-adjusting mechanism (6) includes a support rod (61), the outer sides of which are fixedly connected to the inside of the outer shell (1). Movable frames (62) are fixedly connected to the top sides of the support rod (61). A top roller (63) is slidably connected to the top of the adjacent side of the movable frame (62). A limiting bolt (64) is threadedly connected to the outer sides of the top roller (63). A telescopic spring (65) is fixedly connected to the bottom of the limiting bolt (64). The outer side of the limiting bolt (64) is slidably connected to the top inner side of the movable frame (62).

3. The drying device for composite felt preparation according to claim 2, characterized in that: A bottom roller (66) is fixedly connected to the bottom of the adjacent side of the movable frame (62). Both sides of the bottom roller (66) are threaded with fixing bolts (67). The external threads of the fixing bolts (67) are connected to the top of the support rod (61), and the top of the fixing bolts (67) is fixedly connected to the other end of the telescopic spring (65).

4. The drying device for composite felt preparation according to claim 1, characterized in that: The scraping assembly (4) includes a limiting rod (41), the top of which is fixedly connected to the bottom of the support frame (31), and a sleeve (42) is slidably connected to the outside of the limiting rod (41). A tension spring (43) is sleeved inside the sleeve (42), and an inclined scraper (44) is fixedly connected to the outside of the sleeve (42).

5. The drying apparatus for composite felt preparation according to claim 4, characterized in that: The collecting component (5) includes a flow channel plate (51), the top of which is fixedly connected to the bottom of the sleeve (42), and a guide tube (52) is fixedly connected to one end of the flow channel plate (51), the outside of which is fixedly connected to the inside of the outer shell (1).

6. The drying apparatus for composite felt preparation according to claim 1, characterized in that: A support roller (7) is rotatably connected to the inside right side of the outer shell (1), and a drying assembly (8) is fixedly connected to the inside of the outer shell (1).

7. The drying apparatus for composite felt preparation according to claim 6, characterized in that: The drying assembly (8) includes a controller (81), which is fixedly connected to the outside of the housing (1). The output end of the controller (81) is fixedly connected to a converter (82), and the output end of the converter (82) is fixedly connected to a dryer (83).

8. The drying apparatus for composite felt preparation according to claim 7, characterized in that: The bottom of the converter (82) is fixedly connected to the inner bottom side of the outer shell (1), and the outer sides of the dryer (83) are fixedly connected to the inner wall of the outer shell (1).