Anti-falling mechanism for headstock of packing machine

Abstract

The utility model discloses an anti-falling mechanism for a headstock of a packing machine. The anti-falling mechanism comprises a portal frame and the headstock, the headstock is arranged on the portal frame in a vertical sliding state; the two ends of the headstock are fixedly connected with guide wheel fixing frames; chain wheels are rotationally connected to the upper and lower ends of the portal frame side columns; a rotatable anti-falling block is arranged at the upper part of the guide wheel fixing frame; the upper part of the anti-falling block and the lower part of the guide wheel fixing frame are connected with chains; when the chain is broken, the anti-falling block rotates under the action of the tension spring, and the clamping block on the anti-falling block can be clamped into the clamping plate clamping groove welded to the portal frame to limit the headstock. Meanwhile, due to the fact that the position and the angle of the anti-falling block are changed due to rotation of the anti-falling block, a flush sensor can be triggered, the emergency stop function can be triggered, the working state of the packing machine is stopped, the chain is prevented from working continuously in the disconnected state, safety of workers is guaranteed, and goods are prevented from being damaged.

Description

Technical Field

[0001] This utility model belongs to the field of protection technology for baling machines, specifically, it relates to a fall prevention mechanism for the head frame of a baling machine. Background Technology

[0002] In the photovoltaic industry, once photovoltaic panels are manufactured, manufacturers need to consider factors such as transportation, protection, and aesthetics to properly package the products. This typically involves using a packing machine to seal the panels. There are two main types of lifting mechanisms for the packing machine's head frame: chain drive and rack and pinion drive.

[0003] Compared to rack and pinion drives, chain drives have the advantage of effectively transmitting motion and power even with a large center distance between the two shafts. They are suitable not only for low-speed, heavy-load, high-temperature, and dusty environments, but also ensure a precise transmission ratio, transmit greater power, exert less force on the shafts, and have high transmission efficiency.

[0004] However, when the head frame of the baling machine adopts a chain-driven lifting method, there are two main problems:

[0005] First, if the chain breaks during chain drive, workers below may be hit by the machine head frame, posing a safety hazard.

[0006] Secondly, if the anti-collision sensor on the nose frame malfunctions, the nose frame will continue to descend when it comes into contact with cargo or other objects, causing the cargo to be crushed and resulting in economic losses.

[0007] Given the above issues, although chain drives have certain advantages in lifting the head frame of a packing machine, they still have certain limitations. Utility Model Content

[0008] To address the technical problems in existing packaging machines that use chain drives, such as potential chain breakage and malfunction of anti-collision sensors, which pose safety hazards and could lead to damage to goods, this utility model provides a packaging machine head frame anti-fall mechanism.

[0009] The objective of this utility model can be achieved through the following technical solutions:

[0010] A fall prevention mechanism for a baling machine head frame includes a gantry frame and a head frame; the head frame is vertically sliding on the gantry frame; guide wheel fixing frames are fixedly connected to both ends of the head frame; sprockets are rotatably connected to the upper and lower ends of the side columns of the gantry frame; a rotatable fall prevention block is provided on the upper part of the guide wheel fixing frame; chains are connected to the upper part of the fall prevention block and the lower part of the guide wheel fixing frame; a locking block is fixedly connected to the lower part of the fall prevention block; a locking plate is fixedly connected to the side column of the gantry frame near the locking block; evenly distributed locking slots are opened on the locking plate; a tension spring is fixedly connected to the side of the fall prevention block away from the locking slots, and the other end of the tension spring is connected to the gantry frame; a leveling sensor is fixedly installed on the guide wheel fixing frame.

[0011] Furthermore, the gantry is fixedly connected to guide rails at both ends of the head frame, the head frame is slidably connected to the guide rails, and the head frame is vertically slidably mounted on the gantry via the guide rails.

[0012] Furthermore, a motor is fixedly installed on the side of the gantry frame, and the output end of the motor is connected to the drive shaft of the sprocket.

[0013] Furthermore, the tension spring, gantry frame, and fall arrestor block form a right-angled triangular structure, with the tension spring being the hypotenuse.

[0014] Furthermore, a fixed bracket is fixedly connected to the side position near the tension spring; the flush sensor is fixedly mounted on the fixed bracket.

[0015] Furthermore, the fall arrestor block has a shaft hole in the middle, and the fall arrestor block is rotatably connected to the guide wheel fixing frame through the cooperation of the shaft hole and the shaft rod.

[0016] Furthermore, the upper part of the anti-fall block and the lower part of the guide wheel fixing frame are both connected to joints; the chain is connected to the outer end of the chain via the joints.

[0017] The beneficial effects of this utility model are:

[0018] 1. When the chain breaks, the anti-fall block rotates under the action of the tension spring, and the locking block on it engages with the locking plate groove welded on the gantry frame, limiting the movement of the machine head frame. Simultaneously, the rotation of the anti-fall block changes its position and angle, triggering the leveling sensor and the emergency stop function, thereby stopping the working state of the packing machine, preventing the chain from continuing to operate while broken, ensuring the safety of the workers, and avoiding damage to the goods.

[0019] 2. Due to the characteristics of gravity and chains, during the normal descent of the machine head frame, the chain connected to the anti-fall block at the top is taut, while the chain connected to the guide wheel fixing frame at the bottom is slack. Therefore, if the machine head frame makes a collision during descent, the upper chain will become slack due to the lack of force, and the tension spring will cause the anti-fall block to rotate slightly under the tension. The leveling sensor can still detect the movement of the anti-fall block, thereby triggering the alarm system to ensure the safety of the anti-fall and the cargo. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the chain and sprocket assembly in this utility model;

[0022] Figure 3 This is a schematic diagram of the guide wheel fixing frame structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-fall block structure in this utility model;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Gantry frame; 101. Head frame; 2. Guide rail; 3. Sprocket; 4. Motor; 5. Anti-fall block; 6. Connector; 7. Chain; 8. Card plate; 9. Card slot; 10. Card block; 11. Tension spring; 12. Fixed bracket; 13. Flush sensor; 14. Guide wheel fixing bracket; 15. Shaft hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 As shown, a baling machine head frame anti-fall mechanism includes a gantry frame 1 and a head frame 101. The head frame 101 is vertically slidably mounted on the gantry frame 1. Guide wheel fixing frames 14 are fixedly connected to both ends of the head frame 101. The guide wheel fixing frames 14 are used to install and fix the head frame 101. Guide rails 2 are fixedly connected to both ends of the gantry frame 1 corresponding to the two ends of the head frame 101. The head frame 101 is slidably connected to the guide rails 2, and the head frame 101 is vertically slidably mounted on the gantry frame 1 via the guide rails 2.

[0028] Please refer to it again.Figure 1 and Figure 2 As shown, sprockets 3 are rotatably connected to the upper and lower ends of the side column of the gantry frame 1; a motor 4 is fixedly installed on the side of the gantry frame 1, and the output end of the motor 4 is connected to the drive shaft of the sprocket 3 to drive the sprocket 3 to rotate.

[0029] Please refer to it again. Figure 3 and Figure 4 As shown, a fall arrestor block 5 is provided on the upper part of the guide wheel fixing frame 14; a shaft hole 15 is provided in the middle of the fall arrestor block 5, and the fall arrestor block 5 is rotatably connected to the guide wheel fixing frame 14 through the cooperation of the shaft hole 15 and the shaft rod; a locking block 10 is fixedly connected to the lower part of the fall arrestor block 5.

[0030] Please refer to it again. Figure 3 As shown, the upper part of the anti-fall block 5 and the lower part of the guide wheel fixing frame 14 are both connected to the joint 6; the outer end of the joint 6 is connected to the chain 7, which meshes with the corresponding sprocket 3; a counterweight box (not shown in the figure) is also slidably installed on the side column of the gantry frame 1, and the upper and lower ends of the counterweight box are respectively connected to the ends of the corresponding chain 7 to counterweight the chain 7 and achieve balance with the weight of the machine head frame 101 itself.

[0031] Please refer to it again. Figure 2 As shown, a card plate 8 is fixedly connected to the side column of the gantry frame 1 near the card block 10; the card plate 8 has evenly distributed card slots 9; a tension spring 11 is fixedly connected to the side of the anti-fall block 5 away from the card slots 9, and the other end of the tension spring 11 is connected to the gantry frame 1; the tension spring 11, the gantry frame 1 and the anti-fall block 5 form a right-angled triangle structure, and the tension spring 11 is the hypotenuse.

[0032] Please refer to it again. Figure 3 As shown, a fixed bracket 12 is fixedly connected to the side of the guide wheel fixing bracket 14 near the tension spring 11; a leveling sensor 13 is fixedly installed on the fixed bracket 12, which is used to detect the position of the anti-fall block 5.

[0033] To facilitate understanding of the above-mentioned technical solution of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below:

[0034] Motor 4 drives sprocket 3 to rotate, and sprocket 3 drives the head frame 101 to rise and fall via chain 7. When chain 7 breaks, anti-fall block 5 rotates under the action of tension spring 11, and the locking block 10 on it will engage with the locking plate 8 groove 9 welded on the gantry frame 1, limiting the movement of the head frame 101. At the same time, because the position and angle of anti-fall block 5 change due to rotation, it will trigger the leveling sensor 13, triggering the emergency stop function, thereby stopping the working state of the packing machine, preventing chain 7 from continuing to work in a broken state, ensuring the safety of the staff, and avoiding damage to the goods.

[0035] Due to gravity and the characteristics of chain 7, during the normal descent of the machine head frame 101, the upper chain 7 connected to the anti-fall block 5 is taut, while the lower chain 7 connected to the guide wheel fixing frame 14 is slack. Therefore, if the machine head frame 101 makes a collision during descent, the upper chain 7 will become slack due to the lack of force, and the tension spring 11 will cause the anti-fall block 5 to rotate slightly under the tension. The leveling sensor 13 can still detect the movement of the anti-fall block 5, thereby triggering the alarm system to ensure the safety of the anti-fall and the cargo.

[0036] It should be noted that, in this document, terms such as “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.

[0037] 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.

Claims

1. A fall prevention mechanism for the head frame of a baling machine, comprising a gantry frame (1) and a head frame (101); characterized in that: The head frame (101) is mounted on the gantry frame (1) in a vertical sliding state; The two ends of the machine head frame (101) are fixedly connected to guide wheel fixing frames (14); the upper and lower ends of the side columns of the gantry frame (1) are rotatably connected to sprockets (3); and the upper part of the guide wheel fixing frame (14) is provided with a rotatable anti-fall block (5). Chains (7) are connected to the upper part of the anti-fall block (5) and the lower part of the guide wheel fixing frame (14); The lower part of the anti-fall block (5) is fixedly connected to a locking block (10); a locking plate (8) is fixedly connected to the side column of the gantry frame (1) near the locking block (10); the locking plate (8) is provided with evenly distributed locking slots (9); A tension spring (11) is fixed to the side of the anti-fall block (5) away from the slot (9), and the other end of the tension spring (11) is connected to the gantry frame (1); a leveling sensor (13) is fixedly installed on the guide wheel fixing frame (14).

2. The anti-fall mechanism for the head frame of a baling machine according to claim 1, characterized in that: The gantry frame (1) is fixedly connected to guide rails (2) at both ends of the head frame (101). The head frame (101) and the guide rails (2) are slidably connected, and the head frame (101) slides vertically on the gantry frame (1) via the guide rails (2).

3. The anti-fall mechanism for the head frame of a baling machine according to claim 1, characterized in that: A motor (4) is fixedly installed on the side of the gantry (1), and the output end of the motor (4) is connected to the drive shaft of the sprocket (3).

4. The anti-fall mechanism for the head frame of a baling machine according to claim 1, characterized in that: The tension spring (11), the gantry frame (1), and the anti-fall block (5) form a right-angled triangle structure, with the tension spring (11) being the hypotenuse.

5. The anti-fall mechanism for the head frame of a baling machine according to claim 1, characterized in that: A fixed bracket (12) is fixedly connected to the side position near the tension spring (11); the flush sensor (13) is fixedly mounted on the fixed bracket (12).

6. The anti-fall mechanism for the head frame of a baling machine according to claim 1, characterized in that: The fall arrestor block (5) has a shaft hole (15) in the middle. The fall arrestor block (5) is rotatably connected to the guide wheel fixing frame (14) through the shaft hole (15) and the shaft rod.

7. The anti-fall mechanism for the head frame of a baling machine according to claim 1, characterized in that: The upper part of the anti-fall block (5) and the lower part of the guide wheel fixing frame (14) are both connected to the joint (6); the chain (7) is connected to the outer end of the chain (7) via the joint (6).

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