A kind of interior trim sponge composite flame spraying hot melting device

By designing extrusion and cooling components with easily adjustable pressure bar spacing, the adaptability of the flame-sparking hot-melt device to sponges of different thicknesses was solved, improving the bonding effect and cooling efficiency between the sponge and the leather.

CN224528046UActive Publication Date: 2026-07-21HUBEI XINRUIXIN TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI XINRUIXIN TECHNOLOGY CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing flame-heat-melting device has an inconveniently adjustable pressure roller spacing, making it difficult to effectively compress sponges of different thicknesses and affecting the bonding effect.

Method used

A flame-splattering hot-melting device including an extrusion component and a cooling component was designed. The spacing between the pressure rods can be conveniently adjusted through the sliding connection of the sliding plate and the sliding groove. The cooling component uses coolant and a filter screen to cool and filter the sponge.

Benefits of technology

It achieves effective compression of sponges of different thicknesses, improves the bonding effect, and enhances product quality and performance through the cooling and filtering functions of the cooling components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224528046U_ABST
    Figure CN224528046U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of automobile interior sponge composite fire spraying hot melting device, belong to the technical field of automobile interior, including bottom plate, the top surface of the bottom plate is fixedly installed with the top surface of fire spraying hot melting device, the top surface of the bottom plate is fixedly connected with the support plate of two quantity, two The top surface between the support plate is fixedly connected with extrusion bin, two The support plate between fixedly connected with collection bin, extrusion bin is equipped with extrusion component for extruding sponge on it. The automobile interior sponge composite fire spraying hot melting device, by the effect of pressing rod, sponge is extruded conveniently, improve the adhesion effect, by the sliding connection between sliding plate and sliding groove, drive two pressing plate to move, the spacing between pressing rod is adjusted conveniently, improve use effect, at the same time, by the effect of placing pipe and collection bin, cooling liquid is stored, and then air is cooled, improve cooling effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of automotive interior technology, specifically to a flame-heated melting device for automotive interior sponge composite. Background Technology

[0002] Automotive interiors mainly refer to automotive products used for interior modifications, covering all aspects of the car's interior, such as steering wheel covers, car seat cushions, car floor mats, car perfumes, car pendants, interior decorations, and storage boxes. Among them, the soft-pack materials in cars are mainly composed of an inner sponge and an outer leather wrapping layer. During the production process, the sponge and leather wrapping layer need to be heat-fused together using a flame-heat-melting device.

[0003] Announcement No. CN219789313U discloses a flame-heated melting device for automotive interior sponge composite. This patent discloses a technical solution to improve the bonding effect, solving the problem that when sponge and leather are pressed together at high temperatures, direct winding by the winding roller can easily lead to displacement and deformation of the sponge and leather during the winding process. In addition, the surface of the sponge pulled from the feeding roller has a lot of dust or dirt. If it is directly ignited and melted, it can easily lead to poor adhesion in the later stage, affecting product quality and reducing service life.

[0004] When in use, the device uses a cooling and dust removal mechanism to allow the sponge and leather to cool and solidify quickly after bonding. However, the spacing of the pressing rollers is not easy to adjust, making it difficult to squeeze sponges of different thicknesses, which reduces the effectiveness of use. Therefore, a flame-heated melting device for automotive interior sponge composite is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a flame-sparking hot-melt device for automotive interior sponge composite, which has the advantage of convenient adjustment and solves the problem that the spacing of the pressing rollers in existing flame-sparking hot-melt devices is not easy to adjust, making it difficult to squeeze sponges of different thicknesses and reducing the effectiveness of use.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flame-splatter hot-melt device for automotive interior sponge composite includes a base plate, on the top surface of which the flame-splatter hot-melt device is fixedly mounted. Two support plates are fixedly connected to the top surface of the base plate. An extrusion chamber is fixedly connected between the top surfaces of the two support plates. A collection chamber is fixedly connected between the two support plates. An extrusion assembly for extruding the sponge is provided on the extrusion chamber.

[0008] The extrusion assembly includes two pressure rods, both of which are placed inside the extrusion chamber. The left and right sides of the extrusion chamber are provided with clearance grooves for the sponge to pass through. The front and back inner walls of the extrusion chamber are provided with sliding grooves. Two sliding plates are placed inside each of the two sliding grooves. Positioning plates are fixedly connected to the sides of the four sliding plates near the pressure rods. Connecting rods are rotatably connected to the sides of the four positioning plates near the pressure rods via bearings. The connecting rods are fixedly connected to the pressure rods.

[0009] The collection chamber is equipped with a cooling component for cooling the air.

[0010] The extrusion chamber is equipped with a drive assembly for moving the pressure bar.

[0011] Furthermore, the sliding plate and the sliding groove are slidably connected, and the extrusion chamber is a hollow cuboid.

[0012] Furthermore, the cooling assembly includes a partition plate fixedly connected inside the collection chamber. A filter plate is fixedly connected between the partition plate and the collection chamber. A first filter screen is fixedly embedded on the top surface of the filter plate. A conveying pipe with one end penetrating the partition plate and extending to its back side is fixedly connected to the right side of the partition plate. A placement pipe is placed inside the collection chamber. Two connecting chambers are fixedly connected inside the extrusion chamber. An air outlet pipe with one end penetrating the filter plate and extending to the left connecting chamber is fixedly connected to the bottom surface of the filter plate. A connecting pipe with one end penetrating the air outlet pipe and extending to the right connecting chamber is fixedly connected to the inside of the air outlet pipe. The two ends of the placement pipe extend into the conveying pipe and the air outlet pipe respectively and are fixedly connected to them. A drain pipe with one end penetrating the collection chamber and extending to its back side is fixedly connected to the inner wall of the back side of the collection chamber. A solenoid valve is fixedly installed on the outer peripheral wall of the drain pipe. Multiple air outlet holes are opened on the opposite sides of the two connecting chambers.

[0013] Furthermore, the collection chamber is a cuboid with a hollow interior and a missing top surface, and the solenoid valve is located at the back of the collection chamber.

[0014] Furthermore, the connecting pipe and the air outlet pipe are respectively fixedly connected to two connecting chambers, and the connecting chambers are in the shape of hollow cuboids.

[0015] Furthermore, the drive assembly includes a dual-axis motor, which is fixedly installed inside the rear sliding groove. The output shaft of the dual-axis motor is fixedly connected to two screws, one end of which passes through the two sliding plates and extends into the rear sliding groove. A mounting plate is fixedly connected to the front of the partition, and the mounting plate is fixedly connected to the collection chamber. A second filter screen is fixedly embedded on the top surface of the mounting plate, and an exhaust fan is fixedly installed on the bottom surface of the mounting plate.

[0016] Furthermore, the screws are rotatably connected by bearings and sliding grooves, the threads of the two screws are opposite, and the partition is located between the mounting plate and the filter plate.

[0017] Furthermore, threaded holes are provided on the opposite sides of the two sliding plates on the back, and the two screws pass through the two threaded holes and are threadedly connected to them.

[0018] Compared with the prior art, this utility model provides a flame-heated melting device for automotive interior sponge composite, which has the following advantages:

[0019] 1. This flame-heated melting device for automotive interior sponge composite uses pressure rods to conveniently compress the sponge, improving the bonding effect. Through the sliding connection between the sliding plate and the sliding groove, the two pressure plates are moved, and the distance between the pressure rods can be easily adjusted to improve the performance. At the same time, through the function of the placement tube and the collection chamber, coolant is stored, thereby cooling the air and improving the cooling effect.

[0020] 2. This automotive interior sponge composite flame-heating device uses a threaded connection between a screw and a sliding plate to easily move a pressure rod, facilitating operation by staff. Through the action of the first and second filters, it filters coolant and air respectively, minimizing the entry of impurities into the collection chamber and improving the performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the collection chamber in this utility model from the left side;

[0023] Figure 3 This is a schematic diagram of the internal structure of the extrusion chamber in this utility model from the left side;

[0024] Figure 4 This is a perspective view of the extrusion chamber in the structure of this utility model.

[0025] In the diagram: 1. Base plate, 2. Flame-blasting hot-melt device, 3. Extrusion chamber, 4. Collection chamber, 5. Support plate, 6. Pressure rod, 7. Connecting chamber, 8. Sliding plate, 9. Sliding groove, 10. Connecting pipe, 11. Partition plate, 12. Mounting plate, 13. Second filter screen, 14. Exhaust fan, 15. Conveying pipe, 16. First filter screen, 17. Placement pipe, 18. Drain pipe, 19. Solenoid valve, 20. Filter plate, 21. Air outlet pipe, 22. Screw, 23. Dual-axis motor, 24. Clearance groove, 25. Connecting rod, 26. Positioning plate, 27. Air outlet. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1 to 4 This embodiment of an automotive interior sponge composite flame-sparking hot-melt device includes a base plate 1. A flame-sparking hot-melt device 2 is fixedly mounted on the top surface of the base plate 1. Two support plates 5 are fixedly connected to the top surface of the base plate 1. An extrusion chamber 3 is fixedly connected between the top surfaces of the two support plates 5. A collection chamber 4 is fixedly connected between the two support plates 5. An extrusion assembly for extruding the sponge is provided on the extrusion chamber 3.

[0028] The extrusion assembly includes two pressure rods 6, both of which are placed inside the extrusion chamber 3. The left and right sides of the extrusion chamber 3 are provided with clearance grooves 24 for the sponge to pass through. The front and back inner walls of the extrusion chamber 3 are provided with sliding grooves 9. Two sliding plates 8 are placed inside each of the two sliding grooves 9. Positioning plates 26 are fixedly connected to the side of each of the four sliding plates 8 near the pressure rods 6. Connecting rods 25 are rotatably connected to the side of each of the four positioning plates 26 near the pressure rods 6 via bearings. The connecting rods 25 and the pressure rods 6 are fixedly connected.

[0029] The sliding plate 8 and the sliding groove 9 are slidably connected, and the extrusion chamber 3 is a hollow cuboid.

[0030] Specifically, the spacing between the pressure rods 6 is adjusted by the sliding connection between the sliding plate 8 and the sliding groove 9, and both pressure rods 6 are squeezed with the sponge leather composite to improve the bonding effect.

[0031] It should be noted that the flame-sparking hot-melt device 2 is a conventional device known to the public in the prior art, and its specific structure and working principle will not be described in detail in this article.

[0032] Please see Figures 1 to 4In this embodiment, the collection chamber 4 is equipped with a cooling assembly for cooling the air. The cooling assembly includes a partition 11, which is fixedly connected inside the collection chamber 4. A filter plate 20 is fixedly connected between the partition 11 and the collection chamber 4. A first filter screen 16 is fixedly embedded on the top surface of the filter plate 20. A conveying pipe 15 is fixedly connected to the right side of the partition 11, with one end penetrating the partition 11 and extending to its back side. A placement pipe 17 is placed inside the collection chamber 4. Two connecting chambers 7 are fixedly connected inside the compression chamber 3. A [missing information - likely a device or component] is fixedly connected to the bottom surface of the filter plate 20. An air outlet pipe 21 extends through the filter plate 20 and into the left connecting chamber 7. A connecting pipe 10 is fixedly connected inside the air outlet pipe 21, extending through the air outlet pipe 21 and into the right connecting chamber 7. The two ends of the placement pipe 17 extend into the conveying pipe 15 and the air outlet pipe 21 respectively and are fixedly connected thereto. A drain pipe 18 is fixedly connected to the inner wall of the back of the collection chamber 4, extending through the collection chamber 4 and into its back. A solenoid valve 19 is fixedly installed on the outer peripheral wall of the drain pipe 18. Multiple air outlet holes 27 are opened on the opposite side of the two connecting chambers 7.

[0033] The collection chamber 4 is a hollow cuboid with a missing top surface. The solenoid valve 19 is located on the back of the collection chamber 4. The connecting pipe 10 and the vent pipe 21 are fixedly connected to the two connecting chambers 7, which are also hollow cuboids.

[0034] Specifically, coolant is poured into the collection chamber 4 and filtered by the first filter screen 16 to minimize impurities from entering the bottom of the collection chamber 4. Air is conveyed into the placement pipe 17 through the conveying pipe 15 and cooled by the coolant. The air is then conveyed into the connecting chamber 7 through the air outlet pipe 21 and the connecting pipe 10. The cold air is discharged from the connecting chamber 7 through the air outlet 27 to cool the sponge leather composite. When the coolant needs to be replaced, the solenoid valve 19 is activated, and the coolant is discharged from the collection chamber 4 through the drain pipe 18.

[0035] It should be noted that the solenoid valve 19 is a conventional device known to the public in the prior art, and its specific structure and working principle will not be described in detail in this article.

[0036] Please see Figures 1 to 4In this embodiment, the extrusion chamber 3 is provided with a drive assembly for moving the pressure rod 6. The drive assembly includes a dual-axis motor 23, which is fixedly installed inside the back sliding groove 9. The output shaft of the dual-axis motor 23 is fixedly connected to two screws 22, one end of which passes through two sliding plates 8 and extends into the back sliding groove 9. The front of the partition plate 11 is fixedly connected to a mounting plate 12, which is fixedly connected to the collection chamber 4. The top surface of the mounting plate 12 is fixedly inlaid with a second filter screen 13, and the bottom surface of the mounting plate 12 is fixedly installed with an exhaust fan 14.

[0037] Among them, the screw 22 is rotatably connected by bearing and sliding groove 9, the threads of the two screws 22 are opposite, the partition 11 is located between the mounting plate 12 and the filter plate 20, and the two sliding plates 8 on the back side are provided with threaded holes on opposite sides, and the two screws 22 pass through the two threaded holes and are threadedly connected to them respectively.

[0038] Specifically, the dual-axis motor 23 is started, and the output shaft of the dual-axis motor 23 drives the screw 22 to rotate. Through the threaded connection between the screw 22 and the back sliding plate 8, the screw 22 drives the two pressure rods 6 to move relative to each other through the sliding plate 8. The exhaust fan 14 is started, and the exhaust fan 14 draws external air into the interior of the collection chamber 4. The air is filtered by the second filter screen 13.

[0039] It should be noted that the exhaust fan 14 and the dual-shaft motor 23 are conventional devices known to the public in the prior art. Their specific structure and working principle will not be described in detail in this article. The output shafts of the dual-shaft motor 23 rotate in the same direction.

[0040] The working principle of the above embodiments is as follows:

[0041] Coolant is poured into the collection chamber 4. The first filter 16 filters the coolant, minimizing impurities from reaching the bottom of the collection chamber 4. The exhaust fan 14 is activated, drawing outside air into the collection chamber 4. This air is then conveyed through the delivery pipe 15 into the placement pipe 17, where it is filtered by the second filter 13 and cooled by the coolant. The air then flows through the outlet pipe 21 and connecting pipe 10 into the connecting chamber 7. The dual-axis motor 23 is then activated. The output shaft of machine 23 drives screw 22 to rotate. Through the threaded connection between screw 22 and back sliding plate 8 and the sliding connection between sliding plate 8 and sliding groove 9, screw 22 drives two pressure rods 6 to move relative to each other through sliding plate 8, adjusting the distance between pressure rods 6. Both pressure rods 6 are squeezed with sponge leather composite to improve the bonding effect. Cold air is discharged from connecting chamber 7 through air outlet 27 to cool sponge leather composite. When the coolant needs to be replaced, solenoid valve 19 is activated, and the coolant is discharged from collection chamber 4 through drain pipe 18.

[0042] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flame-sparking hot-melt device for composite automotive interior foam, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is fixedly installed with the top surface of the flame-sparking hot-melt device (2). Two support plates (5) are fixedly connected to the top surface of the base plate (1). An extrusion chamber (3) is fixedly connected between the top surfaces of the two support plates (5). A collection chamber (4) is fixedly connected between the two support plates (5). An extrusion assembly for extruding the sponge is provided on the extrusion chamber (3). The extrusion assembly includes two pressure rods (6), both of which are placed inside the extrusion chamber (3). The left and right sides of the extrusion chamber (3) are provided with clearance grooves (24) for the sponge to pass through. The front and back inner walls of the extrusion chamber (3) are provided with sliding grooves (9). Two sliding plates (8) are placed inside the two sliding grooves (9). Positioning plates (26) are fixedly connected to the side of the four sliding plates (8) near the pressure rods (6). Connecting rods (25) are rotatably connected to the side of the four positioning plates (26) near the pressure rods (6) through bearings. The connecting rods (25) and pressure rods (6) are fixedly connected. The collection chamber (4) is provided with a cooling component for cooling the air, and the extrusion chamber (3) is provided with a drive component for moving the pressure rod (6).

2. The flame-sparking hot-melt device for automotive interior sponge composite according to claim 1, characterized in that: The sliding plate (8) and the sliding groove (9) are slidably connected, and the extrusion chamber (3) is a hollow cuboid.

3. The flame-splatter hot-melt device for automotive interior sponge composite according to claim 1, characterized in that: The cooling assembly includes a partition (11) fixedly connected inside the collection chamber (4). A filter plate (20) is fixedly connected between the partition (11) and the collection chamber (4). A first filter screen (16) is fixedly embedded on the top surface of the filter plate (20). A conveying pipe (15) with one end penetrating the partition (11) and extending to its back side is fixedly connected to the right side of the partition (11). A placement pipe (17) is placed inside the collection chamber (4). Two connecting chambers (7) are fixedly connected inside the extrusion chamber (3). A conveying pipe with one end penetrating the filter plate (20) and extending to its back side is fixedly connected to the bottom surface of the filter plate (20). An air outlet pipe (21) extends into the left connecting chamber (7). A connecting pipe (10) is fixedly connected inside the air outlet pipe (21) with one end penetrating through the air outlet pipe (21) and extending into the right connecting chamber (7). The two ends of the placement pipe (17) extend into the conveying pipe (15) and the air outlet pipe (21) respectively and are fixedly connected thereto. A drain pipe (18) is fixedly connected to the inner wall of the back of the collection chamber (4) with one end penetrating through the collection chamber (4) and extending to its back. A solenoid valve (19) is fixedly installed on the outer peripheral wall of the drain pipe (18). A number of air outlet holes (27) are opened on the opposite side of the two connecting chambers (7).

4. The flame-sparking hot-melt device for automotive interior sponge composite according to claim 3, characterized in that: The collection chamber (4) is a cuboid with a hollow interior and a missing top surface, and the solenoid valve (19) is located on the back of the collection chamber (4).

5. The flame-sparking hot-melt device for automotive interior sponge composite according to claim 3, characterized in that: The connecting pipe (10) and the air outlet pipe (21) are fixedly connected to the two connecting chambers (7), and the connecting chambers (7) are hollow cuboids.

6. The flame-sparking hot-melt device for automotive interior sponge composite according to claim 3, characterized in that: The drive assembly includes a dual-axis motor (23), which is fixedly installed inside the back sliding groove (9). The output shaft of the dual-axis motor (23) is fixedly connected to two screws (22), one end of which passes through two sliding plates (8) and extends into the back sliding groove (9). The front of the partition (11) is fixedly connected to a mounting plate (12), which is fixedly connected to the collection chamber (4). The top surface of the mounting plate (12) is fixedly inlaid with a second filter screen (13), and the bottom surface of the mounting plate (12) is fixedly installed with an exhaust fan (14).

7. The flame-sparking hot-melt device for automotive interior sponge composite according to claim 6, characterized in that: The screw (22) is rotatably connected by a bearing and a sliding groove (9), and the threads of the two screws (22) are opposite. The partition (11) is located between the mounting plate (12) and the filter plate (20).

8. The flame-sparking hot-melt device for automotive interior sponge composite according to claim 6, characterized in that: The two sliding plates (8) on the back are provided with threaded holes on opposite sides, and the two screws (22) pass through the two threaded holes and are threadedly connected to them.