Automatic safety supporting device for refrigerator forming machine lower die

Abstract

The utility model discloses a refrigerator forming machine lower mould automatic safety support device relates to refrigerator production technical field, the utility model discloses a rack and fixed frame are provided with support rod on the rotation of fixed frame, drive mechanism rotates and is established on the rack, is provided with the top rod on the support rod, and drive mechanism is connected with the top rod rotation, locking mechanism includes the limiting rod of sliding and setting on the fixed frame, and the both ends of limiting rod and fixed frame all are fixedly set with elastic member, and the outer peripheral surface of support rod is seted up with the limiting slot of adapting of limiting rod, through the hydraulic cylinder and rotate to vertical state of lifting support rod, can avoid the security risk caused by artificial operation, when the support rod rotates into vertical state through spring and makes limiting rod snap into the limiting slot, completes the locking of support rod, can prevent the back of support rod due to external force or hydraulic cylinder failure and fall, through the retraction of hydraulic cylinder can drive the push board and make limiting rod remove limiting slot to unlock and make it back and fall.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator manufacturing technology, specifically to an automatic safety support device for the lower mold of a refrigerator forming machine. Background Technology

[0002] Many refrigerator components, such as the inner liner and door liners, are manufactured using vacuum forming machines. The core of this process involves the precise coordination of the upper and lower molds. The lower mold support device of the refrigerator forming machine is a crucial system for ensuring the safety of the molding equipment, especially during the production of large plastic parts like the refrigerator inner liner and door liners. It primarily operates within the lower mold section, and during equipment maintenance and repair, it uses mechanical self-locking and stable support to prevent accidents caused by the lower mold accidentally falling.

[0003] When raising the lower mold for equipment maintenance, a support rod is typically placed below the lower mold of the molding machine to prevent it from sliding down. During use, the horizontally placed support rod needs to be rotated to a vertical position. Existing technologies include manual rotation of the support rod and cylinder-driven rotation. Manual rotation requires rotating the support rod from below the lower mold and then manually fixing it, posing a safety hazard. Cylinder-driven rotation typically relies on the thrust of the cylinder and a simple baffle to maintain the support rod's verticality. This method has a risk: if the support rod is subjected to lateral force or the cylinder suddenly loses pressure, the support rod can easily fall rapidly due to the weight of the lower mold, leading to an accident. Utility Model Content

[0004] The purpose of this invention is to provide an automatic safety support device for the lower mold of a refrigerator forming machine, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic safety support device for the lower mold of a refrigerator forming machine, comprising a frame, a fixed frame fixedly mounted on the frame, and a support rod rotatably mounted on the fixed frame; a drive mechanism rotatably mounted on the frame, a top rod mounted on the support rod, and the drive mechanism rotatably connected to the top rod; and a locking mechanism, comprising a limiting rod slidably mounted on the fixed frame, with elastic elements fixedly mounted at both ends of the limiting rod and the fixed frame, and a limiting groove adapted to the limiting rod being formed on the outer circumferential surface of the support rod.

[0006] Preferably, the fixed frame has a movable groove, and the limiting rod is slidably disposed in the movable groove.

[0007] Preferably, the drive mechanism includes a mounting bracket fixedly mounted on the frame, a shaft fixedly mounted on the mounting bracket, and a hydraulic cylinder rotatably connected to the shaft.

[0008] Preferably, a rotating shaft is fixedly installed on the fixing frame, the support rod is rotatably connected to the rotating shaft, and the shaft is located on the side of the rotating shaft away from the elastic element.

[0009] Preferably, the support rod has a vertical groove at one end near the fixed frame, and a push plate is slidably disposed in the vertical groove.

[0010] Preferably, the outer circumferential surface of the support rod is provided with a sliding groove that matches the top rod, a slider is slidably disposed inside the support rod, the slider is fixedly connected to the top rod, and a connecting plate is fixedly disposed between the slider and the push plate.

[0011] Preferably, the elastic element is a spring.

[0012] In the above technical solution, this utility model provides an automatic safety support device for the lower mold of a refrigerator forming machine, which has the following beneficial effects: the support rod is lifted and rotated to a vertical state by a hydraulic cylinder, which can avoid the safety hazards caused by manual operation. When the support rod is rotated to a vertical state, the limit rod is locked into the limit groove by a spring, which can prevent the support rod from falling back due to external force or failure of the hydraulic cylinder. The retraction of the hydraulic cylinder can drive the push plate to move the limit rod out of the limit groove, thereby unlocking the support rod and causing it to fall back. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the limiting groove provided in an embodiment of the present utility model;

[0016] Figure 3 A schematic diagram of the support rod provided in an embodiment of this utility model;

[0017] Figure 4 A schematic diagram of the push plate provided in an embodiment of this utility model;

[0018] Figure 5 Provided for the embodiments of this utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Frame; 2. Support rod; 3. Fixing frame; 4. Rotating shaft; 5. Moving groove; 6. Limiting rod; 7. Spring; 8. Mounting bracket; 9. Shaft; 10. Hydraulic cylinder; 11. Push rod; 12. Slide groove; 13. Sliding block; 14. Connecting plate; 15. Push plate; 16. Vertical groove; 17. Limiting groove. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-5 An automatic safety support device for the lower mold of a refrigerator molding machine, the technical solution proposed in this utility model includes a frame 1, a fixed frame 3 fixedly mounted on the frame 1, and a support rod 2 rotatably mounted on the fixed frame 3; a drive mechanism rotatably mounted on the frame 1, a top rod 11 mounted on the support rod 2, and the drive mechanism rotatably connected to the top rod 11; a locking mechanism including a limiting rod 6 slidably mounted on the fixed frame 3, elastic elements fixedly mounted at both ends of the limiting rod 6 and the fixed frame 3, and a limiting groove 17 adapted to the limiting rod 6 on the outer circumference of the support rod 2; as shown in the figure. Figure 5 As shown, frame 1 is part of the lower mold of the molding machine. Support rod 2 is rotatably mounted on the left side of fixed frame 3. When support rod 2 rotates to a vertical position, the end face of support rod 2 near fixed frame 3 abuts against the inner wall of fixed frame 3, which can prevent support rod 2 from rotating excessively. The tail of hydraulic cylinder 10 is rotatably mounted on frame 1, and its piston rod end is rotatably connected to push rod 11. Figure 3 As shown, in the initial state, there is a certain tilt angle between the support rod 2 and the frame 1. When the drive mechanism is started, it pushes the top rod 11 obliquely upward, causing the support rod 2 to rotate. During the rotation of the support rod 2, its end face near the fixed frame 3 will squeeze the limiting rod 6, causing it to move to the right to prevent interference. When the support rod 2 rotates to a vertical state, the limiting rod 6 is aligned with the limiting groove 17. At this time, the elastic element pushes the limiting rod 6 into the limiting groove 17, so that the support rod 2 is locked, preventing the support rod 2 from tilting or falling back.

[0023] Specifically, the fixed frame 3 has a movable groove 5, and the limiting rod 6 is slidably disposed within the movable groove 5; for example Figure 5 As shown, in the initial state, the limiting rod 6 is at the left end of the moving groove 5. When the support rod 2 rotates, it will squeeze the outer circumferential surface of the limiting rod 6, causing the limiting rod 6 to move.

[0024] Specifically, the drive mechanism includes a mounting bracket 8 fixedly mounted on the frame 1, a shaft 9 fixedly mounted on the mounting bracket 8, and a hydraulic cylinder 10 rotatably connected to the shaft 9; for example Figure 3As shown, the mounting bracket 8 is used to support the tail end of the hydraulic cylinder 10 which is rotatably connected to the shaft 9. The end of the hydraulic cylinder 10 away from the shaft 9 is rotatably connected to the push rod 11. Since there is a certain angle between the hydraulic cylinder 10 and the support rod 2, the hydraulic cylinder 10 will lift the support rod 2 until it is vertical when it is started.

[0025] Specifically, a rotating shaft 4 is fixedly installed on the fixed frame 3, and the support rod 2 is rotatably connected to the rotating shaft 4. The shaft 9 is located on the side of the rotating shaft 4 away from the elastic element. When the support rod 2 falls back, the shaft 9 is located between the top rod 11 and the rotating shaft 4, so that there is a certain angle between the hydraulic cylinder 10 and the support rod 2, and the support rod 2 can be lifted when the hydraulic cylinder 10 is started.

[0026] Specifically, a vertical groove 16 is provided at one end of the support rod 2 near the fixed frame 3, and a push plate 15 is slidably disposed in the vertical groove 16; the vertical groove 16 is connected to the limiting groove 17, and the push plate 15 is trapezoidal. In the initial state, the push plate 15 is at the end of the vertical groove 16 near the top rod 11. At this time, if the support rod 2 is rotated, the push plate 15 will not contact the limiting rod 6 that is stuck in the limiting groove 17. When it is necessary to lower the vertical support rod 2, the push plate 15 is pushed towards the limiting rod 6, the inclined side of the push plate 15 abuts against the limiting rod 6, and gradually pushes the limiting rod 6 out of the limiting groove 17, thereby unlocking the support rod 2. When the support rod 2 falls, the outer circumference of the support rod 2 will push the limiting rod 6 to move in the moving groove 5.

[0027] Specifically, the outer circumferential surface of the support rod 2 is provided with a sliding groove 12 that matches the top rod 11. A slider 13 is slidably disposed inside the support rod 2. The slider 13 is fixedly connected to the top rod 11, and a connecting plate 14 is fixedly disposed between the slider 13 and the push plate 15. Figure 5 As shown, when the hydraulic cylinder 10 is activated, it first pushes the push rod 11 to the left end of the slide groove 12. The push rod 11 then moves the slider 13 and the push plate 15 to the left. Subsequently, the hydraulic cylinder 10 lifts the support rod 2, and the limit rod 6 is then engaged in the limit groove 17. When the support rod 2 needs to fall back, the hydraulic cylinder 10 is driven to retract. However, at this time, the limit rod 6 is engaged in the limit groove 17, and the support rod 2 cannot rotate. The hydraulic cylinder 10 then moves the push rod 11 downward, thereby causing the push plate 15 to move downward. When the push rod 11 moves to the end of the slide groove 12 near the limit rod 6, the push plate 15 pushes the limit rod 6 completely out of the limit groove 17 to complete the unlocking. At this time, the hydraulic cylinder 10 continues to retract, and the hydraulic cylinder 10 drives the support rod 2 to fall back.

[0028] Specifically, the elastic element is set as spring 7; the elastic force of spring 7 allows the limiting rod 6 to automatically reset after being squeezed, making it convenient for the limiting rod 6 to be inserted into the limiting groove 17 to complete the locking of the support rod 2.

[0029] 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. An automatic safety support device for the lower mold of a refrigerator forming machine, comprising a frame (1), characterized in that, A fixed frame (3) is fixedly installed on the frame (1), and a support rod (2) is rotatably installed on the fixed frame (3). The drive mechanism is rotatably mounted on the frame (1), and a top rod (11) is provided on the support rod (2). The drive mechanism is rotatably connected to the top rod (11). The locking mechanism includes a limiting rod (6) that is slidably mounted on the fixed frame (3). Both ends of the limiting rod (6) are fixedly provided with elastic elements between them and the fixed frame (3). The outer circumferential surface of the support rod (2) is provided with a limiting groove (17) that is adapted to the limiting rod (6).

2. The automatic safety support device for the lower mold of a refrigerator forming machine according to claim 1, characterized in that, The fixed frame (3) has a movable groove (5), and the limiting rod (6) is slidably disposed in the movable groove (5).

3. The automatic safety support device for the lower mold of a refrigerator forming machine according to claim 1, characterized in that, The drive mechanism includes a mounting bracket (8) fixedly mounted on the frame (1), a shaft (9) fixedly mounted on the mounting bracket (8), and a hydraulic cylinder (10) rotatably connected to the shaft (9).

4. The automatic safety support device for the lower mold of a refrigerator forming machine according to claim 3, characterized in that, A rotating shaft (4) is fixedly installed on the fixed frame (3), the support rod (2) is rotatably connected to the rotating shaft (4), and the shaft (9) is located on the side of the rotating shaft (4) away from the elastic element.

5. The automatic safety support device for the lower mold of a refrigerator forming machine according to claim 1, characterized in that, The support rod (2) has a vertical groove (16) at one end near the fixed frame (3), and a push plate (15) is slidably arranged in the vertical groove (16).

6. The automatic safety support device for the lower mold of a refrigerator forming machine according to claim 5, characterized in that, The outer circumferential surface of the support rod (2) is provided with a sliding groove (12) that is adapted to the top rod (11). A slider (13) is slidably arranged inside the support rod (2). The slider (13) is fixedly connected to the top rod (11). A connecting plate (14) is fixedly arranged between the slider (13) and the push plate (15).

7. The automatic safety support device for the lower mold of a refrigerator forming machine according to claim 6, characterized in that, The elastic element is configured as a spring (7).

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