A safety locking mechanism for electric mould frame upper mould turnover

Abstract

The utility model relates to the technical field of automobile sunroof glass edge covering production, especially to a kind of safety locking mechanism for the mould turnover of electric mould frame, including two groups of sliding seat assembly and the upper die assembly being rotatably installed between two groups of sliding seat assembly by rotating shaft, and the both ends of upper die assembly are symmetrically arranged with safety locking mechanism;Safety locking mechanism includes lock pin plate and two sets of safety cylinder assembly, lock pin plate is fixed on upper die assembly and overturns with upper die assembly synchronously, and a group of fan-shaped long holes concentric with rotating shaft are formed in lock pin plate;Safety cylinder assembly includes cylinder, and the piston rod of cylinder is fixed with safety pin shaft.The utility model is through the safety locking mechanism of left-right symmetry arrangement, ensure that upper die overturns to any angle, at least one set of safety pin shaft of safety cylinder assembly can be inserted into corresponding long hole and realize rigid locking, the possibility that upper die falling causes personal injury to lower operating personnel is blocked from physical level, and the safety of production operation is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive sunroof glass edging production technology, and in particular to a safety locking mechanism for the flipping of the upper mold on an electric mold frame. Background Technology

[0002] In the automotive manufacturing industry, the production of sunroof glass edging is a crucial process for ensuring vehicle sealing, aesthetics, and structural strength. This process relies on an electric mold frame to complete core operations such as glass positioning and edging forming. The flipping action of the upper mold is an important aspect of meeting ergonomic design requirements. By flipping it to a specific angle, workers can easily enter the operating area to perform glass loading, positioning adjustments, and subsequent quality inspections, directly impacting production efficiency and operational comfort.

[0003] However, existing electric mold frames rely entirely on motor braking systems for upper mold tilting and positioning. In actual production scenarios, the motor brakes are constantly subjected to the weight of the upper mold and operational impacts, making them prone to performance degradation or even complete failure due to mechanical wear, electromagnetic failure, or control system malfunctions. When workers are operating below the upper mold, if the motor brakes suddenly fail, the upper mold will tilt unexpectedly under gravity. The enormous impact could not only damage glass products and malfunction production equipment but also pose a serious threat to the personal safety of workers below, presenting a very high safety hazard. Therefore, we propose a safety locking mechanism for upper mold tilting in electric mold frames to solve the above problems. Utility Model Content

[0004] This invention addresses the potential risk of the upper mold tipping over and causing injury to workers if the upper mold motor brake fails in the existing technology. It provides a safety locking mechanism for the flipping of the upper mold in an electric mold frame.

[0005] This utility model is achieved through the following technical solution:

[0006] A safety locking mechanism for flipping the upper mold of an electric mold frame includes two sets of sliding seat assemblies and an upper mold assembly rotatably mounted between the two sets of sliding seat assemblies via a rotating shaft. Safety locking mechanisms are symmetrically arranged at both ends of the upper mold assembly.

[0007] Each set of the safety locking mechanism includes a locking pin plate and two sets of safety cylinder assemblies. The locking pin plate is fixed on the upper mold assembly and rotates synchronously with the upper mold assembly. The locking pin plate has a set of fan-shaped elongated holes concentric with the rotation axis, and the adjacent fan-shaped elongated holes are closely arranged.

[0008] The safety cylinder assembly includes a cylinder fixed on the sliding seat assembly, and a safety pin is fixed on the piston rod of the cylinder.

[0009] The safety pins in both sets of the safety cylinder assemblies are located on the concentric circle of the fan-shaped elongated hole of the locking pin plate, and when the upper mold assembly is flipped to any angle, the safety pin of at least one set of the safety cylinder assembly can extend into the corresponding fan-shaped elongated hole.

[0010] In a preferred embodiment of this utility model, the connection between the upper mold assembly and the rotating shaft is further provided with a bearing, a stop washer, a lock nut, and a snap ring. The bearing is sleeved on the outside of the rotating shaft, the stop washer and the lock nut are sequentially sleeved on the end of the rotating shaft and abut against the bearing, and the snap ring is locked in the groove of the rotating shaft for limiting the position. Through the cooperation of the bearing, the stop washer, the lock nut, and the snap ring, the stability of the rotation of the upper mold assembly and the rotating shaft is improved.

[0011] In a preferred embodiment of this utility model, an end cap is provided at the outer end of the rotating shaft. The end cap is fixed on the sliding seat assembly. The end cap seals the outer end of the rotating shaft, improving aesthetics while reducing the entry of impurities.

[0012] In a preferred embodiment of this utility model, the safety cylinder assembly further includes a copper sleeve, a spacer, and a washer. The copper sleeve is embedded in the spacer, and the cylinder body is fixed to the sliding seat assembly by the spacer, the washer, and bolts. The safety pin is inserted into the copper sleeve and slides with it to ensure that the safety pin maintains a straight trajectory during movement, avoiding shaking or deviation. This ensures that the safety pin can accurately extend into the corresponding fan-shaped elongated hole on the locking pin plate, thereby achieving a reliable locking function.

[0013] In a preferred embodiment of this utility model, the safety cylinder assembly further includes a magnetic switch, which is installed on the cylinder and used to detect the extension and retraction position of the safety pin, so that the operator or control system can accurately know the current working status of the safety locking mechanism and avoid safety hazards caused by the pin not extending or retracting correctly.

[0014] In a preferred embodiment of this utility model, the locking pin plate is fixed to the upper mold assembly by a connecting block and bolts. The connecting block is located between the locking pin plate and the upper mold assembly, so that a gap is formed between the locking pin plate and the upper mold assembly, allowing the safety pin to be fully inserted into the corresponding fan-shaped elongated hole on the locking pin plate, thereby improving the stability after locking.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model uses a safety locking mechanism that is symmetrically arranged on the left and right sides. It utilizes a fan-shaped elongated hole on the locking pin plate that is concentric with the rotating shaft, and a retractable safety pin to ensure that when the upper mold is flipped to any angle, at least one set of safety cylinder assembly safety pins can extend into the corresponding elongated hole to achieve rigid locking. This avoids unexpected overturning due to sudden failure of the motor brake, and physically prevents the possibility of the upper mold falling and causing personal injury to the workers below, thus significantly improving the safety of production operations.

[0017] 2. This new type of device can detect the extension and retraction position of the safety pin shaft in real time by configuring a magnetic switch on the cylinder. The dynamic monitoring of the locking state is achieved through feedback signals, which makes it easy for operators or control systems to grasp the working status of the mechanism in a timely manner. In case of abnormal locking, it can quickly issue an early warning and stop the machine to reduce safety hazards. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a safety locking mechanism for flipping the upper mold of an electric mold frame according to the present invention;

[0019] Figure 2 This is an exploded structural diagram of a safety locking mechanism for flipping the upper mold of an electric mold frame according to the present invention.

[0020] Figure 3 This is a schematic diagram of the locking pin plate in a safety locking mechanism for flipping the upper mold of an electric mold frame according to the present invention.

[0021] In the diagram: 1. Sliding seat assembly; 2. Upper mold assembly; 3. Safety locking mechanism; 31. Locking pin plate; 311. Sector-shaped elongated hole; 32. Safety cylinder assembly; 321. Cylinder; 322. Safety pin shaft; 323. Magnetic switch; 4. Rotating shaft; 5. Connecting block. Detailed Implementation

[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0023] like Figure 1-3 The safety locking mechanism for flipping the upper mold of an electric mold frame shown includes two sets of sliding seat assemblies 1 and an upper mold assembly 2 rotatably mounted between the two sets of sliding seat assemblies 1 via a rotating shaft 4;

[0024] The sliding seat assembly 1 includes a sliding seat and a sector gear fixed on the sliding seat. The upper mold assembly 2 includes an upper cover and a servo motor mounted on the upper cover. A drive gear that meshes with the sector gear is fixed on the output shaft of the servo motor. The operation of the servo motor drives the drive gear to rotate on the sector gear, thereby flipping the upper mold assembly 2 at different angles.

[0025] The connection between the upper mold assembly 2 and the rotating shaft 4 is also provided with a bearing, a stop washer, a lock nut, and a snap ring. The bearing is sleeved on the outside of the rotating shaft 4. The stop washer and the lock nut are sequentially sleeved on the end of the rotating shaft 4 and abut against the bearing. The snap ring is locked in the slot of the rotating shaft 4 for limiting the position. Through the cooperation of the bearing, the stop washer, the lock nut, and the snap ring, the stability of the rotation of the upper mold assembly 2 and the rotating shaft 4 is improved. An end cap is provided at the outer end of the rotating shaft 4. The end cap is fixed on the sliding seat assembly 1. The end cap seals the outer end of the rotating shaft 4, improving the aesthetics while reducing the entry of impurities.

[0026] Safety locking mechanisms 3 are symmetrically arranged at both ends of the upper mold assembly 2. Each set of safety locking mechanisms 3 includes a locking pin plate 31 and two sets of safety cylinder assemblies 32. The locking pin plate 31 is fixed to the upper mold assembly 2 by connecting blocks 5 and bolts. The connecting blocks 5 are located between the locking pin plate 31 and the upper mold assembly 2, so that a gap is formed between the locking pin plate 31 and the upper mold assembly 2. The locking pin plate 31 rotates synchronously with the upper mold assembly 2. A set of fan-shaped elongated holes 311 concentric with the rotating shaft 4 are opened on the locking pin plate 31. Adjacent fan-shaped elongated holes 311 are closely arranged.

[0027] The safety cylinder assembly 32 includes a cylinder 321 fixed on the sliding seat assembly 1. A safety pin 322 is fixed on the piston rod of the cylinder 321. The cylinder body of the cylinder 321 is fixed to the sliding seat assembly 1 by a spacer, a washer and bolts. A copper sleeve is embedded in the spacer. The safety pin 322 is inserted into the copper sleeve and slides with the copper sleeve to ensure that the safety pin 322 maintains a straight trajectory during movement, avoiding shaking or deviation. This ensures that the safety pin 322 can accurately extend into the corresponding fan-shaped elongated hole 311 on the locking pin plate 31 to achieve a reliable locking function. At the same time, the copper sleeve can make the movement of the safety pin 322 more stable and reduce vibration and noise during movement.

[0028] The gap between the locking pin plate 31 and the upper mold assembly 2 provides sufficient axial space for the insertion of the safety pin 322. When the safety cylinder 321 drives the safety pin 322 to extend, this gap prevents the upper mold assembly 2 from interfering with the pin's insertion stroke, ensuring that the pin can be fully and deeply inserted into the corresponding fan-shaped elongated hole 311 on the locking pin plate 31, resulting in a more ideal contact length and fit depth between the pin and the elongated hole. This sufficient insertion fit significantly improves the reliability of the mechanical connection between the two in the locked state, effectively disperses the force generated by the upper mold due to its own weight or operational impact, prevents the pin from accidentally coming out of the elongated hole under load, and thus significantly enhances the structural stability of the upper mold after locking, providing a more solid guarantee for the safety of mold frame operations.

[0029] The safety cylinder assembly 32 also includes a magnetic switch 323, which is mounted on the cylinder 321 and used to detect the extension and retraction position of the safety pin 322. When the safety pin 322 performs locking or unlocking actions, the magnetic switch 323 can capture the position signal of the safety pin 322 in real time, such as when it is extended into place or retracted into place, and accurately feed the signal back to the control system or operator. Once the safety pin 322 is not fully extended or fully retracted due to cylinder 321 failure, mechanical jamming, or other abnormalities, the magnetic switch 323 can identify and trigger an early warning immediately, cutting off the path of potential safety hazards from the monitoring perspective, ensuring that the working status of the safety locking mechanism 3 is always clear and controllable, building an intelligent safety barrier for the upper mold flipping operation, avoiding dangers such as upper mold tipping and operation interference caused by abnormal pin movement, and ensuring the dual safety of equipment operation and personnel operation.

[0030] The safety pins 322 in both sets of safety cylinder assemblies 32 are located on the concentric circle of the fan-shaped elongated holes 311 of the locking pin plate 31. When the upper mold assembly 2 is flipped to any angle, the safety pins 322 of at least one set of safety cylinder assemblies 32 can extend into the corresponding fan-shaped elongated holes 311. When the upper mold assembly 2 is flipped to any angle due to operational needs, based on the compatibility of the concentric circle layout and the fan-shaped elongated holes 311, regardless of whether the upper mold assembly 2 is in the initial position, the intermediate flip position, or the extreme angle position, the safety pins 322 in at least one set of safety cylinder assemblies 32 can quickly align and extend into the corresponding fan-shaped elongated holes 311 under the drive of the cylinder 321. Through the physical constraint of the mechanical pins, the current posture of the upper mold is firmly locked, physically preventing the risk of the upper mold assembly 2 tipping over. This provides rigid protection from all angles and without blind spots for the safety of personnel and equipment in the upper mold operation area, ensuring the stability and safety of the production process.

[0031] In this embodiment, when the upper mold assembly 2 is flipped, the locking pin plate 31 is also flipped. When the upper mold assembly 2 is flipped to any angle and needs to be locked, the safety pin 322 is extended by the cylinder 321 in the two sets of safety cylinder assemblies 32. The safety pin 322 in at least one set of safety cylinder assemblies 32 can be quickly aligned and extended into the corresponding fan-shaped elongated hole 311 under the drive of the cylinder 321, thereby achieving the safety protection function.

[0032] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0033] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A safety locking mechanism for flipping an upper mold on an electric mold frame, comprising two sets of sliding seat assemblies (1) and an upper mold assembly (2) rotatably mounted between the two sets of sliding seat assemblies (1) via a rotating shaft (4), characterized in that: Safety locking mechanisms (3) are symmetrically arranged at both ends of the upper mold assembly (2); Each set of the safety locking mechanism (3) includes a locking pin plate (31) and two sets of safety cylinder assemblies (32). The locking pin plate (31) is fixed on the upper mold assembly (2) and rotates synchronously with the upper mold assembly (2). A set of fan-shaped elongated holes (311) concentric with the rotating shaft (4) are provided on the locking pin plate (31). The adjacent fan-shaped elongated holes (311) are closely arranged. The safety cylinder assembly (32) includes a cylinder (321) fixed on the sliding seat assembly (1), and a safety pin (322) is fixed on the piston rod of the cylinder (321); The safety pins (322) in both sets of the safety cylinder assemblies (32) are located on the concentric circle of the fan-shaped elongated hole (311) of the locking pin plate (31), and when the upper mold assembly (2) is flipped to any angle, the safety pins (322) of at least one set of the safety cylinder assemblies (32) can extend into the corresponding fan-shaped elongated hole (311).

2. The safety locking mechanism for flipping the upper mold of an electric mold frame according to claim 1, characterized in that: The connection between the upper mold assembly (2) and the rotating shaft (4) is also provided with a bearing, a stop washer, a locking nut and a snap ring. The bearing is sleeved on the outside of the rotating shaft (4), the stop washer and the locking nut are sequentially sleeved on the end of the rotating shaft (4) and abut against the bearing, and the snap ring is locked in the slot of the rotating shaft (4) for limiting.

3. A safety locking mechanism for flipping the upper mold of an electric mold frame according to claim 2, characterized in that: The outer end of the rotating shaft (4) is provided with an end cap, which is fixed on the sliding seat assembly (1).

4. A safety locking mechanism for flipping the upper mold of an electric mold frame according to claim 1, characterized in that: The safety cylinder assembly (32) also includes a copper sleeve, a spacer and a washer. The copper sleeve is embedded in the spacer. The cylinder body (321) is fixed to the sliding seat assembly (1) by the spacer, the washer and the bolt. The safety pin (322) is inserted in the copper sleeve and slides with the copper sleeve.

5. A safety locking mechanism for flipping the upper mold of an electric mold frame according to claim 4, characterized in that: The safety cylinder assembly (32) also includes a magnetic switch (323), which is mounted on the cylinder (321) and is used to detect the extension and retraction position of the safety pin (322).

6. A safety locking mechanism for flipping the upper mold of an electric mold frame according to claim 1, characterized in that: The locking pin plate (31) is fixed to the upper mold assembly (2) by the connecting block (5) and bolts. The connecting block (5) is located between the locking pin plate (31) and the upper mold assembly (2), so that a gap is formed between the locking pin plate (31) and the upper mold assembly (2).

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