A car seat cushion compaction device

Abstract

This utility model relates to the field of automotive seat cushion processing technology, and more particularly to an automotive seat cushion compaction device, including a machine body, a feeding platform mounted on the machine body, a hydraulic cylinder mounted on the top of the machine body, a mounting seat mounted on the free end of the hydraulic cylinder, a buffer mechanism suitable for different material buffering conditions set at the bottom of the mounting seat, a quick-connect plate mounted at the bottom of the buffer mechanism, a connecting plate slidingly mounted on the quick-connect plate, and an upper pressure plate mounted at the bottom of the connecting plate. Electric heating wires are installed in both the feeding platform and the upper pressure plate. This utility model utilizes the reaction force during the compaction process to push the sliding rod and piston in the buffer mechanism to slide upwards along the inner wall of the buffer sleeve. The damping orifice on the piston compresses the hydraulic oil in the buffer sleeve, achieving strong initial buffering to protect the material, and weaker buffering in the later stage to ensure the compaction effect. Simultaneously, it pushes the hydraulic oil from the top of the serpentine circuit to the bottom of the buffer sleeve, using the viscous resistance of the hydraulic oil to slow down the compaction speed and avoid material damage caused by instantaneous impact.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat cushion processing technology, and in particular to an automotive seat cushion compaction device. Background Technology

[0002] In the automotive interior manufacturing industry, the level of refinement in the production process of car seat cushions directly affects product quality. The compaction process is the core link that determines its structural stability, dimensional accuracy, and user experience. Especially for seat cushions with multi-layered structures such as sponge, down cotton, and composite fabrics, compaction is necessary to achieve the shaping of filling materials, interlayer bonding, and overall dimensional standardization.

[0003] Traditional automotive seat cushion compaction devices mostly employ a single pressure source-driven plate structure, which has significant technical limitations: First, the cushioning adjustment lacks adaptability. Traditional devices often use springs or rubber pads with fixed parameters for cushioning. Springs are prone to elastic fatigue after long-term use, reducing their cushioning effect. Furthermore, they cannot dynamically adjust the cushioning force according to material characteristics. This leads to localized crushing when handling soft materials, while excessive cushioning affects efficiency when handling hard materials, making it difficult to adapt to the needs of multi-category production. Second, the coordination between heating and compaction is insufficient. Existing equipment often uses a single heating plate, which cannot achieve zoned temperature control based on the functional needs of different areas of the seat cushion. Uniform heating can easily lead to localized overheating and aging of the material or insufficient shaping, affecting product consistency. Third, fragmented processes result in low efficiency. Compaction and cutting are often independent processes, increasing turnaround time and labor costs, and potentially reducing dimensional accuracy due to secondary positioning errors. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a car seat cushion compaction device, which solves the technical problems of poor buffer adjustment adaptability of the existing compaction device, difficulty in adapting to the compaction of different materials, and uniform heating, which can easily lead to local overheating and aging or local insufficient shaping.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a car seat cushion compaction device, including a machine body, a feeding platform installed on the machine body, a hydraulic cylinder installed on the top of the machine body, an mounting seat installed on the free end of the hydraulic cylinder, a buffer mechanism suitable for different material buffering conditions provided at the bottom of the mounting seat, a quick-connect plate installed at the bottom of the buffer mechanism, a connecting plate slidingly mounted on the quick-connect plate, a locking mechanism provided at the connection between the quick-connect plate and the connecting plate, an upper pressure plate installed at the bottom of the connecting plate, electric heating wires installed in both the feeding platform and the upper pressure plate, and a cutting mechanism for die-cutting the compacted seat cushion on the connecting plate.

[0006] A further improvement is that multiple electric heating wires are installed in a ring shape inside the feeding platform and the upper pressure plate, with the ring diameter gradually decreasing from the outside to the inside, and each wire is independently electrically connected to the main control unit of the machine body. Thermocouples are installed on the feeding platform and the upper pressure plate in a perpendicular manner to the multiple electric heating wires.

[0007] A further improvement is that the buffer mechanism includes a buffer sleeve installed at the bottom of the mounting base, and the buffer sleeve is filled with hydraulic oil. A slide rod is slidably installed inside the buffer sleeve, and the bottom of the slide rod is connected to a quick-connect plate. A piston that matches the inner diameter of the buffer sleeve is installed at the top of the slide rod. A damping hole is opened in an annular shape on the piston. A serpentine circuit is opened on the inner wall of the buffer sleeve, and the two ends of the serpentine circuit are respectively connected to the two sides of the buffer sleeve. A solenoid valve is installed in the port of the serpentine circuit.

[0008] A further improvement is that the damping hole is a tapered hole structure that is narrow at the top and wide at the bottom, and a high-pressure resistant sealing ring is provided at the interface between the buffer sleeve and the slide rod.

[0009] A further improvement is that the locking mechanism includes a T-shaped slider mounted on the top of the connecting plate and slidably disposed in a T-shaped groove on the quick-connect plate. Both the quick-connect plate and the T-shaped slider have insertion holes of the same diameter, and a locking rod is inserted into the insertion hole. A spring is installed between the handle of the locking rod and the quick-connect plate.

[0010] A further improvement is that the cutting mechanism includes electric push rods symmetrically installed on both sides of the connecting plate, and the free end of the electric push rod passes through the connecting plate and is fitted with a ring plate. A cutting blade is installed at the bottom of the ring plate, and a pressure sensor is installed in the groove at the connection between the ring plate and the electric push rod.

[0011] By employing the above technical solution, this utility model provides a car seat cushion compaction device, which has at least the following beneficial effects:

[0012] 1. This utility model uses the reaction force during the compaction process to push the slide rod and piston to slide up along the inner wall of the buffer sleeve. The damping hole on the piston compresses the hydraulic oil in the buffer sleeve, achieving strong initial buffering to protect the material and weak buffering in the later stage to ensure the compaction effect. At the same time, it pushes the hydraulic oil from the top of the serpentine circuit to the bottom of the buffer sleeve, using the viscous resistance of the hydraulic oil to slow down the compaction speed and avoid material damage caused by instantaneous impact.

[0013] 2. This utility model achieves zoned temperature control by independently controlling the heating of multiple electric heating wires and using thermocouples to monitor the temperature of the feeding platform and upper pressure plate corresponding to the electric heating wires in real time. This improves the consistency of hot pressing molding of car seat cushions and avoids problems such as local overheating and aging or insufficient shaping.

[0014] 3. After hot pressing is completed, the electric push rod is activated to push the ring plate down, which in turn pushes the cutting blade down to cut the hot-pressed car seat cushion. This achieves integrated pressing and cutting, improving processing efficiency and avoiding secondary positioning errors that affect cutting accuracy during subsequent cutting. At the moment the cutting is completed, the pressure value received by the pressure sensor changes synchronously. The main control unit of the machine body promptly activates the electric push rod to retract, thereby preventing the cutting blade from making hard contact with the feeding table and causing damage to both. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting base and its structure according to the present invention;

[0019] Figure 3 This is a cross-sectional view of the internal structure of the buffer mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled locking mechanism of this utility model;

[0021] Figure 5 This is a cross-sectional view of the cutting mechanism of this utility model.

[0022] Figure 6 This is a plan view of the feeding platform of this utility model.

[0023] In the diagram: 1. Machine body; 2. Feeding platform; 3. Hydraulic cylinder; 4. Mounting base;

[0024] 5. Buffer mechanism; 51. Buffer sleeve; 52. Slide rod; 53. Piston; 54. Damping orifice; 55. Serpentine circuit; 56. Solenoid valve;

[0025] 6. Quick-connect plate; 7. Connecting plate;

[0026] 8. Locking mechanism; 81. T-shaped slider; 82. Insertion hole; 83. Locking rod; 84. Spring;

[0027] 9. Upper pressure plate; 10. Electric heating wire; 101. Thermocouple;

[0028] 11. Cutting mechanism; 111. Electric push rod; 112. Ring plate; 113. Cutting blade; 114. Pressure sensor. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Addressing the shortcomings of existing compaction devices, such as poor buffer adjustment adaptability, difficulty in adapting to compaction operations of different materials, and the tendency for uniform heating to lead to localized overheating and aging or insufficient shaping, this embodiment provides an automotive seat cushion compaction device. This device dynamically adjusts the buffering force according to the characteristics of different automotive seat cushion materials, preventing localized crushing when handling soft materials, while avoiding excessive buffering that affects efficiency when handling hard materials. Furthermore, it employs independent zone temperature control to prevent localized overheating, aging, or insufficient shaping caused by uniform heating. Please refer to... Figures 1-6 The car seat cushion compaction device includes a body 1, a feeding platform 2 mounted on the body 1, a hydraulic cylinder 3 mounted on the top of the body 1, a mounting base 4 mounted on the free end of the hydraulic cylinder 3, a cushioning mechanism 5 suitable for different material cushioning conditions at the bottom of the mounting base 4, a quick-connect plate 6 mounted at the bottom of the cushioning mechanism 5, a connecting plate 7 slidingly mounted on the quick-connect plate 6, a locking mechanism 8 at the connection between the quick-connect plate 6 and the connecting plate 7, and an upper pressure plate 9 mounted at the bottom of the connecting plate 7. Both the feeding platform 2 and the upper pressure plate 9 are equipped with... The electric heating wire 10 and the connecting plate 7 are equipped with a cutting mechanism 11 for die-cutting the compacted seat cushion. The car seat cushion material is placed on the feeding platform 2. Then, the upper pressure plate 9 with corresponding pressure grooves is slid into the bottom of the quick-connect plate 6 through the connecting plate 7 and fixed by the locking mechanism 8. Then, the electric heating wire 10 in the feeding platform 2 and the upper pressure plate 9 are heated by starting the feeding platform 2. At this time, the hydraulic cylinder 3 is started to push the upper pressure plate 9 down, thereby hot-pressing the car seat cushion material on the feeding platform 2.

[0032] Since existing equipment mostly uses an integral heating plate, it is impossible to achieve zoned temperature control according to the functional requirements of different areas of the seat cushion. Uniform heating can easily lead to local overheating and aging of materials or insufficient shaping, affecting product consistency. Therefore, in this device, multiple electric heating wires 10 are installed in a ring shape inside the feeding platform 2 and the upper pressure plate 9. The ring diameter gradually decreases from the outside to the inside, and they are independently electrically connected to the main control unit of the machine body 1. Thermocouples 101 are installed on the feeding platform 2 and the upper pressure plate 9 perpendicularly to the multiple electric heating wires 10. According to the local zoned functional requirements of the car seat cushion, the main control unit of the machine body 1 independently controls the heating of multiple electric heating wires 10, and the thermocouples 101 monitor the surface temperature of the feeding platform 2 and the upper pressure plate 9 corresponding to the electric heating wires 10 in real time, thereby achieving zoned temperature control, improving the consistency of car seat cushion hot pressing molding, and avoiding the problems of local overheating and aging or insufficient shaping.

[0033] Since the buffer structure of traditional devices is mostly a spring with fixed parameters, it is impossible to dynamically adjust the buffer force according to the material properties. Therefore, this device is also equipped with a buffer mechanism 5. The buffer mechanism 5 includes a buffer sleeve 51 installed at the bottom of the mounting base 4, and the buffer sleeve 51 is filled with hydraulic oil. A slide rod 52 is slidably installed inside the buffer sleeve 51, and the bottom of the slide rod 52 is connected to the quick-connect plate 6. A piston 53 that matches the inner diameter of the buffer sleeve 51 is installed on the top of the slide rod 52. A damping hole 54 is opened in an annular shape on the piston 53. A serpentine circuit 55 is opened on the inner wall of the buffer sleeve 51, and the two ends of the serpentine circuit 55 are respectively connected to the two sides of the buffer sleeve 51. A solenoid valve 56 is installed in the port of the serpentine circuit 55.

[0034] The damping orifice 54 is a tapered structure that is narrower at the top and wider at the bottom. A high-pressure resistant sealing ring is provided at the interface between the buffer sleeve 51 and the slide rod 52. As the upper pressure plate 9 compacts the material on the discharge platform 2, the reaction force on the upper pressure plate 9 is transmitted to the quick-connect plate 6, which in turn pushes the slide rod 52 and the piston 53 to slide upward along the inner wall of the buffer sleeve 51. The damping orifice 54 on the piston 53 compresses the hydraulic oil in the buffer sleeve 51. Since the damping orifice 54 is a tapered structure that is narrower at the top and wider at the bottom, it gradually increases in size as the piston 53 moves upward. The hydraulic oil flow area provides strong initial buffering to protect the material, while weaker buffering ensures compaction. During the upward movement of piston 53, hydraulic oil is pushed from the top of serpentine circuit 55 to the bottom of buffer sleeve 51. The viscous resistance of the hydraulic oil slows down the compaction speed, avoiding material damage caused by instantaneous impact. The opening and closing degree of serpentine circuit 55 is controlled by solenoid valve 56, thereby adjusting the return speed of hydraulic oil. This allows for switching between different buffering modes for different cushion materials, improving the applicability of the device.

[0035] To prevent the connecting plate 7, which slides at the bottom of the quick-connect plate 6, from moving during compaction and affecting the compaction accuracy, the device is also equipped with a locking mechanism 8. The locking mechanism 8 includes a T-shaped slider 81 installed on the top of the connecting plate 7 and slidably mounted in a T-shaped groove on the quick-connect plate 6. Both the quick-connect plate 6 and the T-shaped slider 81 have insertion holes 82 of the same diameter. A locking rod 83 is inserted into the insertion hole 82. A spring 84 is installed between the handle of the locking rod 83 and the quick-connect plate 6. First, the locking rod 83 is pulled up, and then the T-shaped slider 81 on the top of the connecting plate 7 is slid into the T-shaped groove at the bottom of the quick-connect plate 6 until the T-shaped slider 81 and the insertion hole 82 on the quick-connect plate 6 are perpendicularly aligned. Then, the locking rod 83 is released, allowing it to be inserted into the insertion hole 82 on the T-shaped slider 81, thereby quickly fixing the two together.

[0036] Example 2

[0037] Because traditional equipment separates compaction and cutting into two independent processes, the cutting accuracy may be affected by secondary positioning errors. Therefore, based on Example 1, as... Figures 1-6 As shown, the device is also equipped with a cutting mechanism 11. The cutting mechanism 11 includes electric push rods 111 symmetrically installed on both sides of the connecting plate 7. The free end of the electric push rod 111 passes through the connecting plate 7 and is equipped with a ring plate 112. A cutting blade 113 is installed at the bottom of the ring plate 112. A pressure sensor 114 is installed in the groove at the connection between the ring plate 112 and the electric push rod 111. After hot pressing is completed, the electric push rod 111 is activated to push the ring plate 112 down, which in turn pushes the cutting blade 113 down to cut the hot-pressed car seat cushion. This achieves integrated pressing and cutting, improves processing efficiency, and avoids secondary positioning errors during subsequent cutting that affect cutting accuracy. At the moment the cutting is completed, the pressure value of the pressure sensor 114 changes synchronously. The main control unit of the machine body 1 promptly activates the electric push rod 111 to retract, thereby preventing the cutting blade 113 from making hard contact with the feeding table 2 and causing damage to both.

[0038] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0039] 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 device for compacting a car seat cushion, comprising a body (1), characterized in that: The machine body (1) is equipped with a feeding platform (2), a hydraulic cylinder (3) is installed on the top of the machine body (1), a mounting seat (4) is installed on the free end of the hydraulic cylinder (3), a buffer mechanism (5) suitable for different material buffering conditions is provided at the bottom of the mounting seat (4), a quick-connect plate (6) is installed at the bottom of the buffer mechanism (5), a connecting plate (7) is slidably provided on the quick-connect plate (6), a locking mechanism (8) is provided at the connection between the quick-connect plate (6) and the connecting plate (7), an upper pressure plate (9) is installed at the bottom of the connecting plate (7), an electric heating wire (10) is installed in both the feeding platform (2) and the upper pressure plate (9), and a cutting mechanism (11) for die-cutting the compacted seat cushion is provided on the connecting plate (7).

2. The automobile seat cushion compacting device according to claim 1, wherein: Multiple electric heating wires (10) are installed in a ring shape inside the feeding platform (2) and the upper pressure plate (9). The ring diameter gradually decreases from the outside to the inside, and they are independently connected to the main control unit of the machine body (1). Thermocouples (101) are installed on the feeding platform (2) and the upper pressure plate (9) in a perpendicular correspondence with the multiple electric heating wires (10).

3. The automobile seat cushion compaction device according to claim 1, characterized in that: The buffer mechanism (5) includes a buffer sleeve (51) installed at the bottom of the mounting base (4), and the buffer sleeve (51) is filled with hydraulic oil. A slide rod (52) is slidably installed inside the buffer sleeve (51), and the bottom of the slide rod (52) is connected to the quick-connect plate (6). A piston (53) that matches the inner diameter of the buffer sleeve (51) is installed on the top of the slide rod (52). A damping hole (54) is opened in an annular shape on the piston (53). A serpentine circuit (55) is opened on the inner wall of the buffer sleeve (51), and the two ends of the serpentine circuit (55) are respectively connected to the two sides of the buffer sleeve (51). A solenoid valve (56) is installed in the port of the serpentine circuit (55).

4. The automobile seat cushion compaction device according to claim 3, characterized in that: The damping hole (54) is a tapered hole structure that is narrow at the top and wide at the bottom. A high-pressure resistant sealing ring is provided at the interface between the buffer sleeve (51) and the slide rod (52).

5. The automobile seat cushion compaction device according to claim 1, characterized in that: The locking mechanism (8) includes a T-shaped slider (81) installed on the top of the connecting plate (7) and slidably mounted in the T-shaped groove on the quick-connect plate (6). Both the quick-connect plate (6) and the T-shaped slider (81) have insertion holes (82) with the same diameter. A locking rod (83) is inserted into the insertion hole (82). A spring (84) is installed between the handle of the locking rod (83) and the quick-connect plate (6).

6. The automobile seat cushion compaction device according to claim 1, characterized in that: The cutting mechanism (11) includes electric push rods (111) symmetrically installed on both sides of the connecting plate (7), and the free end of the electric push rod (111) passes through the connecting plate (7) and is equipped with a ring plate (112). A cutting blade (113) is installed at the bottom of the ring plate (112), and a pressure sensor (114) is installed in the groove at the connection between the ring plate (112) and the electric push rod (111).

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