Foaming mold frame system capable of automatically adjusting angle

Abstract

The invention relates to the field of foaming lines, in particular to a foaming mold frame system capable of automatically adjusting an angle. The system comprises a rotary conveying line body driven by a chain, a plurality of mold frame trolleys are installed on the chain of the rotary conveying line body, and an inclined release area before mold opening of a mold frame, an operation area, a pouring area and a mold closing area are sequentially arranged in the anticlockwise direction; the mold frame trolley comprises a frame, a lower mold frame, an upper mold frame and a matched driving and limiting assembly, and switching of horizontal or inclined states of the lower mold frame in different areas is achieved through matching of rails and rollers and telescopic adjustment of supporting rods. The device can meet the individual requirements of different foaming products on curing angles in mixed line production, does not need to manually adjust the angle of the mold frame, is high in automation degree, not only improves the production efficiency and the product consistency, but also reduces the manual labor intensity and the operation error, simplifies the production process, reduces the occupied space of equipment, and reduces the production cost. And the upgrading requirements of the foaming process of the automotive upholstery are met.

Description

Technical Field

[0001] This invention relates to the field of foaming lines, and more particularly to an automatic angle-adjustable foaming mold frame system. Background Technology

[0002] With the rapid development of the automotive industry, the demand for personalized and diversified automotive interior parts is becoming increasingly prominent. As one of the core processes in the production of automotive interior parts, the foaming process is undergoing rapid technological upgrades and iterations. In actual production, different types of automotive interior foam products have different requirements for the placement angle of the foaming mold during the curing process due to differences in structural design, material properties, and functional requirements: some products need to be kept horizontal during curing to ensure uniform distribution of the foaming material; while other products need to be kept tilted to avoid localized air bubble accumulation and ensure product molding quality.

[0003] Currently, traditional foaming mold systems typically employ a fixed-angle design, which can only meet the production needs of a single type of product. When products with different angle requirements need to be produced on the same production line, manual adjustment of the mold angle or replacement with a dedicated mold is required. This is not only cumbersome and time-consuming, significantly reducing production efficiency, but also prone to poor product curing due to manual adjustment errors, affecting product qualification rates. At the same time, frequent manual intervention increases labor intensity and operational safety risks, making it unsuitable for the automated and efficient production requirements of modern production lines.

[0004] Therefore, it is necessary to provide an angle-adjustable foaming mold frame system to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an automatic angle adjustment foaming mold frame system.

[0006] The present invention provides an automatic angle adjustment foaming mold frame system, comprising a chain-driven rotary conveyor line, on which several mold frame trolleys are evenly installed. The rotary conveyor line is divided into a pre-opening tilt release area, an operation area, a pouring area, a mold closing area, and a curing area in a counterclockwise direction. Each area achieves precise control of the mold frame angle and process flow through the cooperation of the track structure and the mold frame trolleys.

[0007] The mold frame trolley is the core execution unit of the system. Its specific structure includes a frame, with mold frame trolley rollers installed at the bottom of the frame. The mold frame trolley moves smoothly by cooperating with the track of the rotary conveyor line through the mold frame trolley rollers. A horizontally arranged crossbeam is fixed in the middle of the frame, and a lower mold frame is hinged to the top of the frame through a mold frame tilting and rotating pin. The lower mold frame can be rotated around the mold frame tilting and rotating pin.

[0008] The lower mold frame is hinged to a lower mold frame support rod at one end away from the overall tilting and rotating pin. The bottom end of the lower mold frame support rod has a slot. A support rod retaining shaft that matches the slot is fixed on the crossbeam. When the slot and the support rod retaining shaft engage, a stable three-bar linkage is formed between the frame, the lower mold frame, and the lower mold frame support rod, thereby fixing the lower mold frame in a horizontal state. Support rod sliding rollers are installed on the lower mold frame support rods. The support rod sliding rollers roll in contact with the upper surface of the crossbeam to reduce the friction when the lower mold frame support rods move. A support rod top plate is fixed to the top of the lower mold frame support rods, and lifting rollers are fixed to the side of the lower mold frame.

[0009] A first driving component is installed in the tilt release area before mold opening. The first driving component includes a tilt release lifting rail, a horizontal rail, a lifting rail and a second tilt downward rail connected in sequence. A linear ejector roller is installed between the horizontal rail and the second tilt downward rail. The linear ejector roller cooperates with the support rod top plate to drive the lower mold frame support rod to move. A first rail is provided at the pouring area and the mold closing area. The first rail cooperates with the lifting roller to realize the horizontal positioning of the lower mold frame in the area.

[0010] The upper mold frame is hinged to the top end of the lower mold frame via an upper mold frame opening and closing rotation pin. The upper mold frame can open and close around the upper mold frame opening and closing rotation pin. The end of the upper mold frame away from the upper mold frame opening and closing rotation pin is fixed to the lower mold frame by a buckle. An opening roller is installed on the buckle. An opening track is installed from the operating area to the mold closing area. The tail end of the opening track is connected to a mold closing track. The opening track is used to drive the opening roller to move, so as to realize the automatic opening and closing of the upper mold frame.

[0011] Furthermore, the entrance of the mold opening track has a single-strip structure, and the mold opening roller is adapted to the top of the single-strip structure to ensure the stability of the upper mold frame in the closed state; the middle part of the mold opening track to the tail end has a double-strip structure, and the mold opening roller is adapted between the double-strip structure. The mold opening roller is driven to move by the change of track height, thereby controlling the upper mold frame to open.

[0012] Furthermore, the mold opening track sequentially includes a pouring lifting track, a lifting and holding track, and a first inclined downward track. Through the connection and cooperation of each track segment, the posture adjustment of the upper mold frame in different areas can be realized.

[0013] Furthermore, the lower mold frame is provided with a mold frame support rod pin. When the lower mold frame support rod is not required to work, it can be stored in the side of the lower mold frame and fixed by the mold frame support rod pin to prevent it from shaking during the operation of the mold frame.

[0014] Compared with related technologies, the present invention provides the following beneficial effects: Automatic angle switching for mixed-line production: Through the coordinated operation of the track structure, support rod assembly and rollers, this invention can automatically switch the mold frame to horizontal or inclined state according to the curing requirements of different products, without manual intervention. It perfectly adapts to the mixed-line production of products with different angle requirements on the same production line, greatly improving the flexibility of the production line.

[0015] High degree of automation, improving production efficiency: The entire system drives the mold frame trolley to rotate through a rotary conveyor line. The angle adjustment of each area and the opening and closing of the upper mold frame are all automatically realized through mechanical structure, reducing manual operation steps, shortening the production cycle, solving the problem of time-consuming and labor-intensive traditional manual angle adjustment, and significantly improving production efficiency.

[0016] Precise positioning ensures product quality: Relying on the three-bar structure, the precise coordination of the track and rollers, and the limiting effect of the hinge point, the mold frame has high positioning accuracy and strong stability in horizontal or inclined states. It effectively avoids angle deviation caused by manual adjustment, ensures that the foaming material is evenly distributed during the curing process, reduces defects such as bubbles and material shortages, and improves the molding quality and consistency of the product.

[0017] Compact structure and easy operation: The system integrates the mold frame trolley, track, drive components and other components on the rotary conveyor line. The layout is reasonable and saves workshop floor space. At the same time, the mold frame is kept in an inclined state in the operating area, which facilitates manual part picking and mold cleaning operations, reduces labor intensity and improves the ease of operation.

[0018] High stability and long service life: The moving parts adopt the method of roller and track cooperation, which has low friction and minimal wear; the key components adopt the connection of hinge and snap-fit, which is firm and has strong impact resistance, ensuring the stability of the system during long-term high-frequency operation and extending the service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mold opening track structure of the present invention; Figure 3 This is a schematic diagram of the tilting and release side of the mold frame before mold opening according to the present invention; Figure 4 This is a schematic diagram of the mold frame tilting and releasing the other side before mold opening according to the present invention; Figure 5 This is a three-dimensional schematic diagram of the mold frame tilting and releasing before mold opening according to the present invention; Figure 6 This is a schematic diagram of the lower mold support rod of the present invention being lowered in the curing area; Figure 7 This is a schematic diagram of the lower mold frame support rod of the present invention retracted in the curing area; Figure 8 This is a schematic diagram of the initial mold frame for the mold opening area of ​​the present invention; Figure 9 This is a schematic diagram of the mold opening area mold frame of the present invention. Figure 10 This is a schematic diagram of the lower mold support rod in the operating area of ​​the present invention in the retracted state; Figure 11 This is a schematic diagram of the lower mold support rod in the operating area of ​​the present invention in the lowered state; Figure 12 This is a schematic diagram of the mold frame of the present invention on one side of the leveling, pouring and mold closing area; Figure 13 This is a schematic diagram of the mold frame of the present invention on the other side of the leveling, pouring and mold closing area; Figure 14 This is a three-dimensional schematic diagram of the mold frame of the present invention in the areas of leveling, pouring and mold closing.

[0020] Labels in the diagram: 1 - Chain; 2 - Rotary conveyor line; 3 - Mold frame trolley; 4 - Frame; 5 - Crossbeam; 6 - Mold frame tilting and rotating pin; 7 - Lower mold frame; 8 - Lower mold frame support rod; 9 - Support rod retainer; 10 - Support rod sliding roller; 11 - Support rod top plate; 12 - Lifting roller; 13 - First drive assembly; 14 - First track; 15 - Upper mold frame opening and closing rotating pin; 16 - Upper mold frame; 17 - Buckle; 18 - Mold opening roller; 19 - Mold opening track; 20 - Mold closing track; 21 - Mold frame trolley roller; 22 - Tilt release lifting track; 23 - Horizontal track; 24 - Lifting track; 25 - Second tilting downward track; 26 - Line ejector roller; 27 - Pouring lifting track; 28 - Lifting holding track; 29 - First inclined downward track; 30 - Mold frame support pin. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1-14 An automatic angle-adjustable foaming mold frame system is disclosed. Its overall structure is compact and operates smoothly. The core consists of a rotary conveyor line 2, a mold frame trolley 3, and track components for each area. Automatic angle adjustment and process flow are achieved through the coordinated action of the mechanical structure. The specific implementation method is as follows: I. Detailed Structure of System Components Rotary conveyor line 2: Driven by chain 1, it adopts a closed-loop design and is divided into four areas in a counterclockwise direction: pre-opening tilt release area A, operation area B, pouring area C, mold closing area D, and curing area E. The tracks of each area are designed with different structures according to functional requirements, providing a moving path and angle adjustment benchmark for the mold trolley 3. Chain 1 is fixedly connected to the mold trolley 3, driving the mold trolley 3 to move cyclically along the conveyor line.

[0023] Mold Cart 3: Frame 4: As the supporting foundation of the mold frame trolley 3, four mold frame trolley rollers 21 are installed at the bottom to ensure that the mold frame trolley 3 rolls smoothly on the conveyor line track; the crossbeam 5 fixed in the middle provides support and a moving track for the lower mold frame support rod 8.

[0024] The lower mold frame 7 is hinged to the frame 4 by the tilting and rotating pin 6 of the mold frame as a whole, and can be rotated around the pin to achieve a specific tilt angle; the upper surface is used to place the foaming mold, and the lifting rollers 12 fixed on the side cooperate with the rails in each area to realize the angle adjustment and positioning of the lower mold frame 7; the side is provided with mold frame support rod pins 30 for storing and fixing the lower mold frame support rods 8.

[0025] The lower mold frame support rod 8 is hinged at one end to the lower mold frame 7, and the other end is engaged with the support rod retainer 9 on the crossbeam 5 through a slot to form a three-bar stable structure; the support rod sliding roller 10 reduces its friction with the crossbeam 5, and the support rod top plate 11 engages with the line top rod roller 26 to realize the automatic extension and retraction of the lower mold frame support rod 8.

[0026] Upper mold frame 16: It is hinged to the lower mold frame 7 via the upper mold frame opening and closing rotation pin 15, and can be opened and closed around the pin; the buckle 17 ensures the firmness of the upper mold frame 16 and the lower mold frame 7 after they are closed; the mold opening roller 18 cooperates with the mold opening track 19 to realize the automatic opening and closing of the upper mold frame 16.

[0027] Track and drive components: First drive assembly 13: Located in the tilt release area before mold opening, it consists of tilt release lifting rail 22, horizontal rail 23, lifting rail 24, second tilt downward rail 25 and line ejector roller 26, and is used to drive the lower mold frame 7 to complete the angle switching of lifting and tilting.

[0028] First track 14: Located in the pouring area and mold closing area, it works in conjunction with the lifting roller 12 to ensure that the lower mold frame 7 remains horizontal in this area, providing a stable reference for pouring and mold closing operations.

[0029] The mold opening track 19 extends from the operating area to the mold closing area and includes, in sequence, a pouring lifting track 27, a lifting and holding track 28, and a first inclined downward track 29. The mold opening roller 18 is driven to move by the change of track height, so as to realize the automatic opening and closing of the upper mold frame 16. The mold closing track 20 is connected to the end of the mold opening track 19 and is used to drive the upper mold frame 16 to close.

[0030] II. Work Process The workflow of this invention is divided into two cases based on the angle required for the curing of the foamed product, as detailed below: Scenario 1: Foamed products that need to be kept horizontal during curing Preparation for mold frame installation: Lower the lower mold frame support rod 8 to make it ready for snap-fit. Install the foaming mold on the lower mold frame 7, and close and fix the upper mold frame 16 through the buckle 17.

[0031] Process flow and angle adjustment: The mold frame trolley 3 enters the pouring area driven by the chain 1. The lifting roller 12 on the lower mold frame 7 cooperates with the first track 14 to lift the lower mold frame 7 to a horizontal position. At this time, the slot at the bottom of the lower mold frame support rod 8 automatically engages with the support rod shaft 9 of the crossbeam 5, forming a three-link stable structure to ensure that the lower mold frame 7 remains horizontal.

[0032] The mold frame trolley 3 enters the pouring area along the lifting and leveling track 28. After the foaming material is poured, it enters the mold closing area. The upper mold frame 16 is further compacted and closed under the action of the mold closing track 20. Then the mold frame trolley 3 carries the closed mold into the curing area. Under the support of the lower mold frame support rod 8, it maintains a horizontal state to complete the curing.

[0033] After curing, the mold frame trolley 3 enters the tilt release area before mold opening: the lifting roller 12 first cooperates with the tilt release lifting track 22 to lift the lower mold frame 7 again; then it moves along the horizontal track 23 to the lifting track 24, the lower mold frame support rod 8 is lifted, and the slot disengages from the support rod retaining shaft 9; the mold frame trolley 3 continues to move forward, the line push rod roller 26 contacts the support rod top plate 11 and pushes inward, driving the lower mold frame support rod 8 to move backward, the support rod sliding roller 10 rolls backward along the crossbeam 5, and the lower mold frame support rod 8 retracts; the mold frame trolley 3 continues to move along the second tilt lower track 25, and the lower mold frame 7 flips to the tilted state under the action of gravity.

[0034] The mold frame trolley 3 enters the operating area, and the upper mold frame 16 automatically opens under the drive of the mold opening track 19. The operator performs the part removal and mold cleaning operations in an inclined state. After the operation is completed, the mold frame trolley 3 leaves the operating area and enters the pouring area, repeating the above cycle.

[0035] Scenario 2: Foamed products that need to be kept at an angle during curing. Preparation for mold frame installation: Store the lower mold frame support rod 8 on the side of the lower mold frame 7 and fix it with the mold frame support rod pin 30. Install the foaming mold on the lower mold frame 7 and close and fix the upper mold frame 16 with the buckle 17.

[0036] Process flow and angle adjustment: Driven by the chain 1, the mold frame trolley 3 enters the pouring area. The lifting roller 12 on the lower mold frame 7 cooperates with the first track 14 to lift the lower mold frame 7 to level it and complete the pouring of the foaming material. Then the mold frame trolley 3 enters the mold closing area, and the upper mold frame 16 is compacted and closed under the action of the mold closing track 20.

[0037] The mold frame trolley 3 carries the closed mold along the first inclined downward track 29. Since the lower mold frame support rod 8 is in a stored and fixed state, the lower mold frame 7 flips to an inclined state under the action of gravity, enters the curing area and maintains the inclined state to complete the curing.

[0038] After curing, the mold frame trolley 3 enters the tilt release area before mold opening. The lifting roller 12 and the tilt release lifting track 22 work together to complete the lifting action. Then it moves along the horizontal track 23, the lifting track 24 and the second tilt downward track 25. Since the lower mold frame support rod 8 is not unfolded, the lower mold frame 7 remains tilted under the action of gravity.

[0039] The mold frame trolley 3 enters the operating area, and the upper mold frame 16 automatically opens under the drive of the mold opening track 19. The operator then performs the part removal and mold cleaning operations. After the operation is completed, the mold frame trolley 3 leaves the operating area and enters the pouring area, repeating the above cycle.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An angle-adjustable foaming mold frame system, comprising a rotary conveyor line (2) driven by a chain (1), characterized in that, The rotary conveyor line (2) has several mold frame trolleys (3) installed on the chain (1). The rotary conveyor line (2) is provided with a mold frame pre-opening tilt release area, operation area, pouring area, mold closing area and curing area in a counterclockwise direction. The mold frame trolley (3) includes a frame (4), on which a crossbeam (5) is fixed. The top of the frame (4) is hinged to a lower mold frame (7) via a mold frame overall tilting and rotating pin (6). A lower mold frame support rod (8) is hinged to the end of the lower mold frame (7) away from the mold frame overall tilting and rotating pin (6). The bottom end of the lower mold frame support rod (8) is provided with a slot. The crossbeam (5) is provided with a support rod retainer (9) that mates with the slot. When the slot mates with the support rod retainer (9), the frame (4), the lower mold frame (7), and the lower mold frame support rod (8) are connected. The structure is a three-bar linkage. The lower mold frame support rod (8) is equipped with a support rod sliding roller (10), and the support rod sliding roller (10) is engaged with the upper surface of the crossbeam (5). The lower mold frame support rod (8) is fixed with a support rod top plate (11). The lower mold frame (7) is fixed with a lifting roller (12). The mold frame is installed in the tilt release area before mold opening with a first drive assembly (13) for cooperating with the lifting roller (12) and the support rod top plate (11). The pouring area and the mold closing area are provided with a first track (14) for cooperating with the lifting roller (12).

2. The angle-adjustable foaming mold frame system according to claim 1, characterized in that, The top end of the lower mold frame (7) is hinged to the upper mold frame (16) via the upper mold frame opening and closing rotation pin (15). The end of the upper mold frame (16) away from the upper mold frame opening and closing rotation pin (15) is engaged with the lower mold frame (7) via a buckle (17). An opening roller (18) is installed on the buckle (17). An opening track (19) for driving the opening roller (18) is installed from the operating area to the mold closing area. A mold closing track (20) is provided at the tail end of the opening track (19).

3. The angle-adjustable foaming mold frame system according to claim 1, characterized in that, The bottom of the frame (4) is equipped with a mold trolley roller (21).

4. The angle-adjustable foaming mold frame system according to claim 1, characterized in that, The first drive component (13) is sequentially provided with an inclined release lifting track (22), a horizontal track (23), a lifting track (24), and a second inclined downward track (25).

5. The angle-adjustable foaming mold frame system according to claim 4, characterized in that, The first drive assembly (13) further includes a line top rod roller (26) installed between the horizontal rail (23) and the second inclined downward rail (25), and the line top rod roller (26) cooperates with the support rod top plate (11).

6. The angle-adjustable foaming mold frame system according to claim 2, characterized in that, The entrance of the mold opening track (19) is a single strip, and the mold opening roller (18) is adapted to the top of the single strip. The middle part of the mold opening track (19) is double strip from the end to the middle part, and the mold opening roller (18) is adapted between the double strip.

7. The angle-adjustable foaming mold frame system according to claim 4, characterized in that, The mold opening track (19) includes, in sequence, a pouring and leveling track (27), a leveling and holding track (28), and a first inclined downward track (29).

8. The angle-adjustable foaming mold frame system according to claim 1, characterized in that, The lower mold frame (7) is provided with a mold frame support rod pin (30) for storing and fixing the lower mold frame support rod (8).

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