Hot mold pressing device for firewall of automobile engine compartment

Abstract

The invention discloses an automobile engine compartment firewall hot mold pressing device, and belongs to the technical field of automobiles, the automobile engine compartment firewall hot mold pressing device comprises two frames and a driving assembly, the two frames are coaxially and symmetrically arranged in the vertical direction, pressing plates are arranged between the two frames in parallel, and the pressing plates are provided with abutting plates corresponding to the pressing plates; the pressing plates are fixedly connected to the two ends of the base, the pressing plates are attached to the abutting plates corresponding to the pressing plates, lining rods are fixedly connected to the axes of the faces, deviating from each other, of the two pressing plates and inserted into the sleeves corresponding to the lining rods, the lower ends of the sleeves vertically penetrate out of the abutting plates, and limiting strips are fixedly connected to the inner walls of the sleeves. A groove attached to the limiting strip is formed in the outer wall of the lining rod, and the limiting strip is arranged in the groove in a sliding mode; the driving assembly is used for enabling the two pressing plates to clamp the fabric between the two pressing plates and then driving the fabric to rotate; according to the garment, wrinkles on the fabric can be avoided.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, and in particular relates to a hot molding device for automotive engine compartment firewalls. Background Technology

[0002] The fireproof wall in the engine compartment of a car is an important safety barrier located between the engine compartment and the passenger compartment. Its main function is to isolate the high temperature, noise and fire risk in the engine area and protect the safety of the occupants. To obtain good fire resistance, it is usually made by stacking spunlace nonwoven fabric, resin felt, needle-punched nonwoven fabric and knurled aluminum foil in sequence and then hot-molding them. However, during the pressing process, since the above materials are all soft materials, wrinkles are prone to appear on them, resulting in some areas that cannot be fully adhered after pressing. A pressing device that can avoid wrinkles on the fabric is proposed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a hot-molding device for automotive engine compartment firewalls, which solves the aforementioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a hot-molding device for a fireproof wall in an automotive engine compartment, comprising a frame and a drive assembly. Two frames are coaxially and symmetrically arranged in the vertical direction, and pressure plates are arranged parallel between the two frames. Each pressure plate has a corresponding abutment plate, and the pressure plate fits into its corresponding abutment plate. An inner liner rod is fixedly connected to the axial center of the opposite side of each of the two pressure plates, and the inner liner rod is inserted into a corresponding sleeve. The lower end of the sleeve extends vertically through the abutment plate. A limit strip is fixedly connected to the inner wall of the sleeve, and a groove is provided on the outer wall of the inner liner rod to fit the limit strip, and the limit strip is slidably disposed in the groove. The drive assembly is used to cause the fabric to rotate after the two pressure plates clamp the fabric between them.

[0005] Further technical solution: The drive assembly includes a threaded ring and an inner threaded sleeve. The outer wall of the sleeve through the abutment plate is provided with a threaded ring, and the threaded ring is threadedly connected to the inner wall of the inner threaded sleeve. The inner threaded sleeve does not have a self-locking effect. In the initial position, there is a gap between the threaded ring and the inner threaded sleeve on the sleeve. The inner threaded sleeve is fixedly connected to the axis of its corresponding connecting frame, and the two connecting frames are horizontally and coaxially arranged between the two frames.

[0006] A further technical solution: Multiple vertical rods are vertically fixedly connected between the two frames, and the connecting frame is horizontally fixedly connected to the multiple vertical rods. Each of the two threaded rings is vertically provided with a corresponding electric telescopic rod, and the output shaft of the electric telescopic rod is rotatably connected to the corresponding sleeve. The electric telescopic rod is vertically fixedly connected to the frame, and a spring is vertically fixedly connected to the end face of the inner lining rod within the limiting strip. The other end of the spring is fixedly connected to the inner bottom surface of the sleeve.

[0007] A further technical solution: A pulling assembly for pulling the fabric during its rotation is provided on the vertical rod. The pulling assembly includes a sleeve B and a synchronization assembly. Two sleeves B are coaxially and symmetrically arranged on the vertical rod, and the sleeves B are rotatably mounted on the outer wall of the vertical rod. A horizontal plate is fixedly arranged on the outer wall of each sleeve B. The fabric is positioned between the two horizontal plates during rotation, and a ball is installed at the end of the horizontal plate away from the sleeve B. The synchronization assembly is used to rotate the ball to contact the high-speed rotating fabric.

[0008] A further technical solution: The synchronization component includes multiple shafts and a transmission component. The multiple shafts are vertically inserted into their corresponding sleeves B, and a connecting strip is fixedly connected to the outer wall of each shaft. The inner wall of the sleeve B is provided with a groove corresponding to the connecting strip, and the connecting strip is slidably disposed in the groove. Both the upper and lower ends of each shaft are open, and the vertical rod extends through the openings at both ends of the shaft. The transmission component is used to make the shaft slide within the sleeve B.

[0009] A further technical solution: The upper end of the shaft abuts against the connecting frame, and the lower end of the shaft is vertically fixedly connected to a spring A, which is sleeved on the vertical rod, and the lower end of the spring A is fixedly connected to the inner bottom surface of the sleeve B. The spring A is used to maintain the distance between the shaft and the sleeve B.

[0010] A further technical solution: The transmission assembly includes multiple gears, which are fixedly connected to the outer wall of their corresponding shafts, and all of the gears are meshed with the same internal gear. The multiple gears and the internal gear are on the same horizontal plane, and the internal gear is fixedly connected to the outer wall of the sleeve, and the internal gear is located on one side of the two abutments that are opposite to each other.

[0011] A further technical solution: A connecting ring is rotatably connected to the upper surface of the internal gear, and the lower surface of the connecting ring overlaps the upper surface of the gear, and a plurality of balls for contacting the gear are provided at the edge of the lower surface of the connecting ring.

[0012] Beneficial effects This invention provides a hot molding device for automotive engine compartment firewalls, which has the following advantages compared with the prior art: 1. The user places the spunlace nonwoven fabric, resin felt, needle-punched nonwoven fabric, and knurled aluminum foil on the upper surface of the pressure plate below, with the long and wide sides of the fabrics corresponding to the long and wide sides of the pressure plate, respectively. Since the area of ​​the fabrics is larger than the pressure plate, the parts outside the pressure plate hang down naturally, which can tighten the parts on the pressure plate to avoid wrinkles. Then, the two pressure plates cooperate to clamp the fabric between them and make the fabric rotate synchronously at high speed. At this time, the fabric gradually rotates to a horizontal state, and under the action of centrifugal force, it naturally stretches out to eliminate wrinkles. This allows the multi-layer fabrics to fit tightly together, and the two pressure plates cooperate to press the fabric of the same size between them, thereby shaping the fabric under pressure. 2. During the fabric rotation process, the rolling ball comes into contact with the fabric, and at this time the rolling ball can produce a pulling effect on the fabric, thereby further tightening the fabric to eliminate its wrinkles. Moreover, since the rolling ball can roll on the fabric, it can prevent the fabric from being over-tightened and causing damage. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a side view cross-sectional structural diagram of the present invention.

[0015] Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention.

[0016] Figure 4 For the present invention Figure 2 An enlarged schematic diagram of structure A in the image.

[0017] Figure 5 This is an enlarged cross-sectional view of the gear structure of the present invention.

[0018] Figure 6 This is a schematic diagram of another cross-sectional structure of the present invention.

[0019] Figure reference numerals: Frame 101, Pressure plate 201, Inner liner rod 202, Sleeve 203, Abutment plate 204, Limiting strip 205, Threaded ring 206, Inner threaded sleeve 207, Connecting frame 208, Electric telescopic rod 209, Vertical rod 301, Horizontal plate 302, Ball bearing 303, Sleeve B 304, Shaft 305, Connecting strip 306, Slide groove 307, Spring A 308, Gear 309, Internal gear 401, Connecting ring 402. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0022] Please see Figures 1-6 This invention provides a hot-molding device for a fireproof firewall in an automotive engine compartment, comprising a frame 101 and a drive assembly. Two frames 101 are coaxially and symmetrically arranged in the vertical direction, and a pressure plate 201 is arranged parallel to each other between the two frames 101. A spunlace nonwoven fabric, resin felt, needle-punched nonwoven fabric, and knurled aluminum foil are sequentially stacked on the upper surface of the lower pressure plate 201. Each pressure plate 201 has a corresponding abutment 204. After the pressure plate 201 is fitted into its corresponding abutment 204, the surfaces of the two abutments 204 that are close to each other are smooth planes. Two pressure plates 201 are fixedly connected to the axial center of their opposite sides, and the inner lining rods 202 are inserted into their corresponding sleeves 203. The lower end of the sleeves 203 extends vertically through the abutment plate 204. A limiting strip 205 is fixedly connected to the inner wall of the sleeves 203, and the outer wall of the inner lining rods 202 is provided with a groove that fits with the limiting strip 205. The limiting strip 205 is slidably disposed in the groove. While keeping the inner lining rods 202 and sleeves 203 rotating synchronously, the limiting strip 205 allows the inner lining rods 202 and sleeves 203 to slide relative to each other. The drive assembly is used to cause the fabric to rotate after the two pressure plates 201 clamp the fabric between them.

[0023] Specifically, the drive assembly includes a threaded ring 206 and an inner threaded sleeve 207. The sleeve 203 has a threaded ring 206 on its outer wall extending from the abutment plate 204. The threaded ring 206 is threadedly connected to the inner wall of the inner threaded sleeve 207. The inner threaded sleeve 207 does not have a self-locking effect. In the initial position, there is a gap between the threaded ring 206 and the inner threaded sleeve 207 on the sleeve 203. The inner threaded sleeve 207 is fixedly connected to the axis of its corresponding connecting bracket 208. The two connecting brackets 208 are horizontally and coaxially arranged between the two frames 101.

[0024] Specifically, multiple vertical rods 301 are vertically fixedly connected between the two frames 101, and the connecting frame 208 is horizontally fixedly connected to the multiple vertical rods 301. Each of the two threaded rings 206 is vertically provided with a corresponding electric telescopic rod 209, and the output shaft of the electric telescopic rod 209 is rotatably connected to the corresponding sleeve 203. The electric telescopic rod 209 is vertically fixedly connected to the frame 101, and a spring is vertically fixedly connected to the end face of the inner lining rod 202 within the limiting strip 205. The other end of the spring is fixedly connected to the inner bottom surface of the sleeve 203.

[0025] In the above embodiment, the user stacks spunlace nonwoven fabric, resin felt, needle-punched nonwoven fabric, and knurled aluminum foil sequentially on the upper surface of the lower pressure plate 201, with the long and wide sides of the fabrics corresponding to the long and wide sides of the pressure plate 204, respectively. Since the area of ​​the fabrics is larger than that of the pressure plate 201, the parts outside the pressure plate 201 naturally droop, thereby tightening the parts on the pressure plate 201 to prevent wrinkles. Then, the user can simultaneously activate the two electric telescopic rods 209. At this time, the output shaft of the electric telescopic rods 209 begins to push the sleeve 203. Since a spring is provided between the sleeve 203 and the inner lining rod 202, a certain distance is maintained between them, so that the inner lining rod 202 moves synchronously with the sleeve 203 until the two pressure plates 201 cooperate to clamp the fabric between them. During this process, the threaded ring 206 gradually... When the fabric is clamped, the threaded ring 206 begins to contact the inner threaded sleeve 207. As the electric telescopic rod 209 continues to push the sleeve 203 in linear motion, the inner threaded sleeve 207 does not have a self-locking effect. Therefore, with the cooperation of the inner threaded sleeve 207, the threaded ring 206 can make the sleeve 203 rotate during linear motion. The faster the linear motion, the faster the rotation. At this time, with the cooperation of the limiting strip 205 on the inner wall of the sleeve 203 and the groove on the outer wall of the inner liner rod 202, the sleeve 203 can drive the inner liner rod 202 to rotate at high speed as it slides downward. That is, at this time, the two inner liner rods 202 rotate at high speed synchronously, and the fabric between them rotates at high speed synchronously. At this time, the fabric gradually rotates to a horizontal state, and under the action of centrifugal force, it naturally stretches out to eliminate wrinkles, so that the multi-layered fabric can fit tightly together. During this process, the two abutments 204 move closer to each other as they rotate. Since the long and wide sides of the fabric correspond to the long and wide sides of the abutments 204 respectively, they can always maintain their correspondence during rotation. That is, the fabric with the same length and width as the abutments 204 remains between the two abutments 204 after it rotates at high speed and naturally stretches. When the two abutments 204 slide to their maximum extent, the abutments 204 and their corresponding pressure plates 201 come into contact and form a smooth plane. Thus, the two abutments 204 cooperate to press the fabric of the same size between them, thereby shaping the fabric under pressure.

[0026] Specifically, the vertical rod 301 is provided with a pulling component for pulling the fabric during the fabric rotation process. The pulling component includes a sleeve B304 and a synchronization component. The two sleeves B304 are coaxially and symmetrically arranged on the vertical rod 301 in the vertical direction. The sleeves B304 are rotatably arranged on the outer wall of the vertical rod 301. The outer wall of each sleeve B304 is horizontally fixed with a horizontal plate 302. During the rotation process, the fabric is between the two horizontal plates 302. A ball bearing 303 is installed on the end of the horizontal plate 302 away from the sleeve B304. The synchronization component is used to rotate the ball 303 to contact the high-speed rotating fabric.

[0027] Specifically, the synchronization component includes multiple shafts 305 and a transmission component. The multiple shafts 305 are vertically inserted into their corresponding sleeves B304, and a connecting strip 306 is fixedly connected to the outer wall of each shaft 305. The inner wall of the sleeve B304 is provided with a groove 307 corresponding to the connecting strip 306, and the connecting strip 306 is slidably disposed in the groove 307. Both the upper and lower ends of each shaft 305 are open, and the vertical rod 301 passes through the openings at both the upper and lower ends of the shaft 305. The transmission assembly is used to allow the shaft 305 to slide within the sleeve B304.

[0028] Specifically, the upper end of the shaft 305 abuts against the connecting frame 208, and the lower end of the shaft 305 is vertically fixedly connected to a spring A308. The spring A308 is sleeved on the vertical rod 301, and the lower end of the spring A308 is fixedly connected to the inner bottom surface of the sleeve B304. The spring A308 is used to maintain the distance between the shaft 305 and the sleeve B304. When the sleeve 203 stops rotating, the sleeve B304 rotates 360°, thereby causing the horizontal plate 302 on it to return to its initial position. When the sleeve 203 starts to rise, the gear 309 can return to its initial position under the action of the spring A308.

[0029] Specifically, the transmission assembly includes multiple gears 309, which are fixedly connected to the outer wall of their corresponding shafts 305. All gears 309 are meshed with the same internal gear 401, and the multiple gears 309 and the internal gear 401 are on the same horizontal plane. The internal gear 401 is fixedly connected to the outer wall of the sleeve 203 and is located on one side of the two abutments 204 that are opposite to each other.

[0030] Specifically, a connecting ring 402 is rotatably connected to the upper surface of the internal gear 401, and the lower surface of the connecting ring 402 overlaps the upper surface of the gear 309. A plurality of balls for contacting the gear 309 are provided at the edge of the lower surface of the connecting ring 402.

[0031] In the above embodiment, during the sliding process of sleeve 203, it can drive the internal gear 401 fixedly connected to it to slide synchronously. That is, at this time, the two internal gears 401 move linearly synchronously, and through the connecting ring 402 provided on it, drive the gear 309 in contact with it to slide synchronously, thereby keeping the gear 309 and the internal gear 401 in a meshing state. That is, at this time, the gear 309 begins to drive the shaft 305 fixedly connected to it to slide synchronously downward. That is, the shaft 305 begins to slide inside sleeve B304, and causes the connecting strip 306 fixedly connected to its outer wall to move linearly in the slide groove 307. At this time, since sleeve 203 has not yet rotated, sleeve B304 cannot rotate at this time. When the sleeve 203 begins to rotate at high speed under the action of the inner threaded sleeve 207 and the threaded ring 206, the internal gear 401 fixedly connected to it begins to rotate. At this time, the multiple gears 309 meshing on the internal gear 401 rotate synchronously. Thus, under the action of the connecting strip 306 and the sliding groove 307, the shaft 305 slides within the sleeve B304, causing the sleeve B304 to rotate synchronously with the shaft 305. At this time, the horizontal plate 302 fixedly connected to the outer wall of the sleeve B304 begins to rotate towards the fabric between the pressure plates 201. Since the fabric is rotating at high speed, under the action of centrifugal force, the fabric is horizontally positioned between the two horizontal plates 302. As the horizontal plates 302 rotate, they can contact the fabric through the rolling balls 303 on them. That is, as the fabric rotates, the rolling balls 303 on them are rotated to contact the fabric. At this time, the rolling balls 303 can exert a pulling effect on the fabric, thereby further tightening the fabric to eliminate its wrinkles. Moreover, since the rolling balls 303 can roll on the fabric, it can prevent the fabric from being over-tightened and causing damage.

[0032] 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 process, method, article, or apparatus.

[0033] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0034] (1) Detachable connection: Components are fixed together using screws, splines, wedges, etc. This type of connection allows for disassembly during maintenance without damaging the parts. However, the specifications of the connectors used must be correct. (Such as the length of bolts, keys, and wedges), and tighten them properly.

[0035] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxy-acetylene cutting for repair or replacement, these parts generally cannot be reused. Furthermore, during connection, [the following should be noted]: Pay attention to process quality, technical testing, and remedial measures (such as correction, polishing, etc.).

[0036] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0037] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0038] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot molding device for a firewall in an automotive engine compartment, characterized in that, The system includes a frame (101) and a drive assembly. The two frames (101) are coaxially symmetrically arranged in the vertical direction, and a pressure plate (201) is arranged parallel between the two frames (101). Each pressure plate (201) is provided with a corresponding abutment (204), and the pressure plate (201) fits into its corresponding abutment (204). An inner liner rod (202) is fixedly connected to the axis of the two opposing sides of the pressure plates (201), and the inner liner rod (202) is inserted into its corresponding sleeve (203). The lower end of the sleeve (203) extends vertically through the abutment (204). A limit strip (205) is fixedly connected to the inner wall of the sleeve (203), and a groove that fits into the limit strip (205) is provided on the outer wall of the inner liner rod (202). The limit strip (205) is slidably disposed in the groove. The drive assembly is used to cause the fabric to rotate after the two pressure plates (201) clamp the fabric between them.

2. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 1, characterized in that, The drive assembly includes a threaded ring (206) and an inner threaded sleeve (207). The sleeve (203) has a threaded ring (206) on its outer wall extending through the abutment plate (204). The threaded ring (206) is threadedly connected to the inner wall of the inner threaded sleeve (207). The inner threaded sleeve (207) does not have a self-locking effect. In the initial position, there is a gap between the threaded ring (206) and the inner threaded sleeve (207) on the sleeve (203). The inner threaded sleeve (207) is fixedly connected to the axis of its corresponding connecting frame (208). The two connecting frames (208) are horizontally and coaxially arranged between the two frames (101).

3. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 2, characterized in that, Multiple vertical rods (301) are vertically fixed between the two frames (101), and the connecting frame (208) is horizontally fixed on the multiple vertical rods (301). Each of the two threaded rings (206) is vertically provided with a corresponding electric telescopic rod (209), and the output shaft of the electric telescopic rod (209) is rotatably connected to the corresponding sleeve (203). The electric telescopic rod (209) is vertically fixed on the frame (101).

4. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 3, characterized in that, A pulling assembly for pulling the fabric during the rotation of the fabric is provided on the vertical rod (301). The pulling assembly includes a sleeve B (304) and a synchronization assembly. The two sleeves B (304) are coaxially and symmetrically arranged on the vertical rod (301) in the vertical direction. The sleeves B (304) are rotatably arranged on the outer wall of the vertical rod (301). A horizontal plate (302) is fixedly arranged on the outer wall of each sleeve B (304). The fabric is located between the two horizontal plates (302) during the rotation. A ball bearing (303) is installed on the end of the horizontal plate (302) away from the sleeve B (304). The synchronization component is used to rotate the ball (303) to contact the high-speed rotating fabric.

5. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 4, characterized in that, The synchronization component includes multiple shafts (305) and a transmission component. The multiple shafts (305) are vertically inserted into their corresponding sleeves B (304). A connecting strip (306) is fixedly connected to the outer wall of the shaft (305). The inner wall of the sleeve B (304) is provided with a groove (307) corresponding to the connecting strip (306). The connecting strip (306) is slidably disposed in the groove (307). Both the upper and lower ends of the shaft (305) are open. The vertical rod (301) passes through the openings at both the upper and lower ends of the shaft (305). The transmission assembly is used to allow the shaft (305) to slide within the sleeve B (304).

6. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 5, characterized in that, The upper end of the shaft (305) abuts against the connecting frame (208), and the lower end of the shaft (305) is vertically fixedly connected to a spring A (308), and the spring A (308) is sleeved on the vertical rod (301), and the lower end of the spring A (308) is fixedly connected to the inner bottom surface of the sleeve B (304).

7. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 5, characterized in that, The transmission assembly includes multiple gears (309), which are fixedly connected to the outer wall of their corresponding shafts (305). All gears (309) are meshed with the same internal gear (401), and the multiple gears (309) and the internal gear (401) are on the same horizontal plane. The internal gear (401) is fixedly connected to the outer wall of the sleeve (203) and is located on one side of the two abutments (204) that are opposite to each other.

8. The hot molding device for a fireproof wall in an automotive engine compartment according to claim 7, characterized in that, The upper surface of the internal gear (401) is rotatably connected to a connecting ring (402), and the lower surface of the connecting ring (402) overlaps the upper surface of the gear (309).

Images