Forklift gantry channel steel machining line mechanical limiting device

By designing a mechanical limit device on the forklift mast channel steel processing line, and using a mechanical push plate in conjunction with a photoelectric switch, the problem of inaccurate limit was solved, achieving dual limit during the channel steel processing process and ensuring the safety and stability of the production line.

CN223792399UActive Publication Date: 2026-01-13BAOJI HELI FORKLIFT CO LTD
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Patent Information

Application Number
CN202520432647.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-01-13
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

The limiting devices on the forklift mast channel steel processing line are prone to failure after long-term use, resulting in inaccurate limiting and affecting the safety and stability of the production line.

Method used

Design a mechanical limiting device for a forklift mast channel steel processing line. The device uses a mechanical push plate structure in conjunction with a photoelectric switch to achieve dual limiting during the channel steel processing, ensuring accurate positioning.

Benefits of technology

By combining the mechanical limit device and the photoelectric switch, timely positioning during the channel steel processing is achieved, ensuring the safety and stability of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forklift gantry channel steel machining line mechanical limiting device which comprises a left connecting plate assembly and a right connecting plate assembly which are installed on the two sides of an assembly line, a shaft is installed between the left connecting plate assembly and the right connecting plate assembly, and a pipe assembly is installed on the shaft. The left connecting plate assembly and the right connecting plate assembly are respectively provided with a triggering electric switch, and the two ends of the pipe assembly are respectively provided with a triggering mechanism matched with the triggering electric switch. And then the channel steel is transmitted to an electrical system and is matched with a proximity switch of a line body to jointly realize double limiting in the channel steel machining process, so that timely positioning in the whole production process is ensured, and the safety and stability of a production line are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of tooling and fixtures, and in particular to a mechanical limiting device for a forklift mast channel steel processing line. Background Technology

[0002] In the forklift production line, the positioning of the mast channel steel processing line is limited by proximity switches. Due to wear of the metal contacts of the limit switches after long-term use, operator error, or improper maintenance, the proximity switches may malfunction. When the switches malfunction, the limit will be inaccurate. Based on the above reasons, a mechanical limit device for the forklift mast channel steel processing line is considered to achieve dual limiting in the channel steel processing process together with the proximity switches. Utility Model Content

[0003] The purpose of this utility model is to provide a mechanical limiting device for a forklift mast channel steel processing line.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A mechanical limiting device for a forklift mast channel steel processing line includes: left and right connecting plate assemblies installed on both sides of the production line; a shaft is installed between the left and right connecting plate assemblies; a tube assembly is installed on the shaft; a trigger switch is installed on the left and right connecting plate assemblies; and triggering mechanisms that cooperate with the trigger switches are respectively installed at both ends of the tube assembly.

[0006] The tube assembly includes: an outer tube mounted on a shaft, with a baffle mounted on the outer tube; and a triggering mechanism mounted at both ends of the tube assembly.

[0007] The triggering mechanism includes a left push plate and a right push plate installed at both ends of the outer tube.

[0008] The two ends of the outer tube are mounted on a shaft, and the shaft is mounted on the left and right connecting plate assemblies via guide shaft supports.

[0009] The left connecting plate assembly has the same structure as the right connecting plate assembly. The left connecting plate assembly includes: a left connecting plate, a left spring mounting plate installed on the left connecting plate, a spring installed on the upper left of the spring mounting plate, and the other end of the spring connected to the left push plate; the trigger switch is disposed on the left connecting plate.

[0010] A left screw plate and a right screw plate are installed in the middle of the outer tube, and the baffle is fixedly installed on the left screw plate and the right screw plate by screws respectively.

[0011] The trigger switch is a photoelectric switch.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model patent provides a mechanical limiting device for a forklift mast channel steel processing line. Due to the mechanical push plate structure, when the channel steel is about to reach the position on the line roller conveyor, the mechanical limiting device first senses the signal and then transmits it to the electrical system. In conjunction with the proximity switch of the line, it achieves dual limiting of the channel steel processing process, ensuring timely positioning throughout the production process and guaranteeing the safety and stability of the production line. Attached Figure Description

[0014] Figure 1 This is the initial position diagram of the mechanical limiting device for the forklift mast channel steel processing line of this utility model;

[0015] Figure 2 This is a diagram showing the position of the photoelectric switch sensing the mechanical limit device of the forklift mast channel steel processing line according to this utility model.

[0016] Figure 3 This is a schematic diagram of the mechanical limiting device tube assembly of the forklift mast channel steel processing line of this utility model.

[0017] In the diagram: 1—shaft, 2—pipe assembly, 2-1—outer pipe, 2-2—left screw hole plate, 2-3—right screw hole plate, 2-4—left push plate, 2-5—right push plate, 3—guide shaft support, 4—baffle, 5—left connecting plate assembly, 5-1—left connecting plate, 5-2—left spring hanging plate, 6—right connecting plate assembly, 6-1—right connecting plate, 6-2—right spring hanging plate, 7—spring, 8—screw, 9—bolt, 10—nut, 11—trigger switch. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0019] like Figure 1 , 2 As shown, this utility model provides a mechanical limiting device for a forklift mast channel steel processing line, comprising: left and right connecting plate assemblies 5 and 6 installed on both sides of the production line; a shaft 1 installed between the left and right connecting plate assemblies 5 and 6; a pipe assembly 2 installed on the shaft 1; a trigger switch 11 installed on the left and right connecting plate assemblies 5 and 6; and triggering mechanisms that cooperate with the trigger switch 11 installed at both ends of the pipe assembly 2.

[0020] Among them, such as Figure 3As shown, the tube assembly 2 includes: an outer tube 2-1 mounted on the shaft 1, and a baffle 4 mounted on the outer tube 2-1; the triggering mechanism is mounted at both ends of the tube assembly 2, and the triggering mechanism includes: a left push plate 2-4 and a right push plate 2-5 mounted at both ends of the outer tube 2-1.

[0021] In this invention, the two ends of the outer tube 2-1 are mounted on the shaft 1. The shaft 1 is mounted on the left and right connecting plate assemblies 5 and 6 via guide shaft supports 3. A left screw hole plate 2-2 and a right screw hole plate 2-3 are mounted in the middle of the outer tube 2-1. The baffle 4 is fixedly mounted on the left screw hole plate 2-2 and the right screw hole plate 2-3 respectively by screws 8. When the channel steel is about to reach its position on the linear roller conveyor, it pushes the baffle 4, thereby driving the outer tube 2-1 to rotate and triggering the operation of the entire device.

[0022] Preferably, the left connecting plate assembly 5 and the right connecting plate assembly 6 have the same structure. The left connecting plate assembly 5 includes: a left connecting plate 5-1, a left spring hanging plate 5-2 installed on the left connecting plate 5-1, a spring 7 installed on the left spring hanging plate 5-2, and the other end of the spring 7 being connected to the left push plate 2-4; the trigger switch 11 is disposed on the left connecting plate 5-1.

[0023] The right connecting plate assembly 6 includes: a right connecting plate 6-1, a right spring hanging plate 6-2 installed on the right connecting plate 6-1, a spring 7 installed on the right spring hanging plate 6-2, and the other end of the spring 7 being connected to the right push plate 2-5; the trigger switch 11 is disposed on the right connecting plate 6-1.

[0024] More preferably, in this invention, adjustable bolts 9 are installed on the left spring mounting plate 5-2 and the right spring mounting plate 6-2 via nuts 10, for limiting the left spring mounting plate 5-2 and the right spring mounting plate 6-2. A photoelectric switch 11 is installed on each of the left connecting plate 5-1 and the right connecting plate 6-1, for receiving the sensing signal from both sensors when the channel steel is in position and transmitting it to the electrical system to complete the mechanical limiting of the channel steel processing line.

[0025] Furthermore, a left screw plate 2-2 and a right screw plate 2-3 are installed in the middle of the outer tube 2-1, and the baffle 4 is fixedly installed on the left screw plate 2-2 and the right screw plate 2-3 respectively by screws 8. The height of the baffle 4 can be adjusted according to its position.

[0026] It should be noted that in this utility model, the trigger switch 11 is a photoelectric switch.

[0027] The working process of this utility model is as follows:

[0028] When the forklift mast channel steel is transported on the processing line, before the channel steel contacts the mechanical limit device, the left screw plate 2-2 and the right screw plate 2-3 on the mechanical limit device tube assembly 2 are in a vertical state. Bolts 9 on the left connecting plate 5-1 and the right connecting plate 6-1 respectively position the left screw plate 2-2 and the right screw plate 2-3. At this time, the photoelectric switch 11 cannot sense the left screw plate 2-2 and the right screw plate 2-3. When the mast channel steel is transported on the roller conveyor and contacts the baffle 4, as the channel steel moves forward, the channel steel presses the baffle 4 and drives the shaft 1 to drive. At the same time, the left screw plate 2-2 and the right screw plate 2-3 on the shaft 1 also rotate, and the left spring 7 is stretched. When the left push plate 2-4 and the right push plate 2-5 rotate to the point where the photoelectric switches 11 on both sides can sense them, the photoelectric switches 11 on both sides receive the new signal and transmit the received signal to the electrical system. After receiving the signal transmitted by the mechanical limit device, the electrical control system starts the subsequent electrical control program. After the entire gantry channel steel passes over the mechanical limiting device, the tension applied to spring 7 by the channel steel decreases, and spring 7 returns to its free state, causing the baffle 4 on pipe assembly 2 to return to its initial state. When bolts 9 on left connecting plate 5-1 and right connecting plate 6-1 respectively position left screw hole 2-2 plate and right screw hole plate 2-3, spring 7 and baffle 4 return to their initial state.

[0029] This utility model provides a mechanical limiting device for a processing line, which, together with a proximity switch, achieves dual limiting during the channel steel processing.

[0030] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and are all protected by this utility model.

Claims

1. A forklift mast groove steel processing line body mechanical limiting device, characterized in that, The utility model relates to a pipeline automatic trigger device, which comprises the following parts: Left and right connecting plate assemblies (5, 6) are installed on both sides of the pipeline, an axle (1) is installed between the left and right connecting plate assemblies (5, 6), a pipe assembly (2) is installed on the axle (1), trigger electric switches (11) are installed on the left and right connecting plate assemblies (5, 6), and trigger mechanisms are installed at both ends of the pipe assembly (2) respectively.

2. The forklift mast groove steel processing line mechanical limiting device according to claim 1, characterized in that, The pipe assembly (2) comprises an outer pipe (2-1) installed on the axle (1), and a baffle (4) is installed on the outer pipe (2-1).

3. The forklift mast groove steel processing line mechanical limiting device according to claim 2, characterized in that, The trigger mechanisms comprise left and right push plates (2-4 and 2-5) installed at both ends of the outer pipe (2-1).

4. The forklift mast groove steel processing line mechanical limiting device according to claim 3, characterized in that, Both ends of the outer pipe (2-1) are installed on the axle (1), and the axle (1) is installed on the left and right connecting plate assemblies (5, 6) through a guide axle support (3).

5. The forklift mast groove section processing line body mechanical limiting device according to claim 4, characterized in that, The left connecting plate assembly (5) is the same in structure as the right connecting plate assembly (6), wherein the left connecting plate assembly (5) comprises a left connecting plate (5-1), a left spring hanging plate (5-2) is installed on the left connecting plate (5-1), a spring (7) is installed on the left spring hanging plate (5-2), the other end of the spring (7) is connected with the left push plate (2-4), and the trigger electric switch (11) is arranged on the left connecting plate (5-1).

6. The forklift mast groove section processing line body mechanical limiting device according to claim 2, characterized in that, A left screw hole plate (2-2) and a right screw hole plate (2-3) are installed in the middle of the outer pipe (2-1), and the baffle (4) is fixedly installed on the left screw hole plate (2-2) and the right screw hole plate (2-3) through screws (8).

7. The forklift mast slot processing line mechanical limiting device according to claim 1, characterized in that, The trigger electric switch (11) is a photoelectric switch.