Forklift mast section guiding device

By using the guide support, fixed-point repositioning, and steel width adjustment mechanism of the forklift mast steel section guiding device, the problem of angular deviation of steel sections during transportation is solved, and the precise placement of steel sections in the next stage is achieved.

CN120885566BActive Publication Date: 2026-06-12CHANGZHOU JINTAN HUANENG MASCH EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU JINTAN HUANENG MASCH EQUIP CO LTD
Filing Date
2025-09-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

When transferring forklift mast steel in existing conveying equipment, the steel is prone to angular deviation, which leads to increased tilt angle changes after directional guidance, resulting in positional differences on the next conveying equipment.

Method used

Design a forklift mast steel section directional guiding device, including a guide support mechanism, a fixed-point repositioning mechanism, a steel section width adaptation mechanism, and four sets of auxiliary delivery mechanisms. Through precise clamping and rotation lifting, it ensures the accurate delivery of the steel section in the next stage.

🎯Benefits of technology

This effectively avoids larger angular deviations in the steel sections after they are guided in different directions, and enables precise control and delivery of the steel sections in the next conveying system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120885566B_ABST
    Figure CN120885566B_ABST
Patent Text Reader

Abstract

The present application relates to the technical field of profile steel conveying, in particular to a forklift gantry profile steel diverging guiding device, which comprises a guiding support mechanism, a fixed-point transposition mechanism arranged on the guiding support mechanism, a profile steel width adapting mechanism arranged on the fixed-point transposition mechanism, and four sets of assisting mechanisms arranged on the profile steel width adapting mechanism; the guiding support mechanism comprises a crossbeam, a base mounted inside the crossbeam, and a bottom rail mounted inside the base. By arranging an independent guiding support mechanism on the existing steel conveying system, and arranging a fixed-point transposition mechanism on the guiding support mechanism, the profile steel is precisely clamped by the fixed-point transposition mechanism cooperating with the profile steel width adapting mechanism and the four sets of assisting mechanisms. After the clamped profile steel is rotated and lifted upward at the fixed-point position, the profile steel can be precisely put into the next conveying equipment, thereby avoiding larger angle deviation of the profile steel after being divergently guided to the next conveying system.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of steel conveying technology, specifically to a forklift mast steel directional guiding device. Background Technology

[0002] Section steel is a strip of steel with a certain cross-sectional shape and size. The section steel used in forklift masts has a rectangular cross-section and is made by hot rolling, cold drawing and other processing techniques.

[0003] Currently, during the production of forklift mast steel sections, the hot-rolled steel sections need to be transferred to the next stage using conveying equipment. Existing conveying equipment uses conveyor rollers to transfer the steel. However, the bearing area of ​​the existing conveyor rollers is relatively large, so the steel will be skewed at a certain angle during the conveying process. Once it is necessary to guide the steel in a different direction, the steel that is tilted on the initial conveying system will have its tilt angle increased after being guided in a different direction due to the tilt angle and external interference. This will result in a significant error in the position of the steel on the conveying equipment in the next stage.

[0004] In view of this, a forklift mast steel directional guiding device was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] A forklift mast steel section directional guiding device includes a guide support mechanism, a fixed-point shifting mechanism mounted on the guide support mechanism, a steel section width adjustment mechanism mounted on the fixed-point shifting mechanism, and four sets of auxiliary conveying mechanisms mounted on the steel section width adjustment mechanism. The guide support mechanism includes a crossbeam, a base installed inside the crossbeam, and a bottom rail installed inside the base. The fixed-point shifting mechanism has a support column movably mounted inside the base, a lifting slide mounted on the top of the support column (the lifting slide is mounted on the bottom rail), a first guide rod mounted on the top of the support column, and a load-bearing plate movably mounted outside the first guide rod, used to rotate and lift the clamped steel section to facilitate directional guidance. The steel section width adjustment mechanism is mounted on the load-bearing plate and provides effective support for the four sets of auxiliary conveying mechanisms; two sets of auxiliary conveying mechanisms are located at the front end of the load-bearing plate, and the other two sets are located at the rear end of the load-bearing plate, used to adapt and clamp both ends of the steel section.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the conveying mechanism includes two tracks, and the tracks are provided with slides. A slide frame is movably installed inside the slides. A main shaft sleeve is provided at the top of the slide frame. A second spring is provided inside the main shaft sleeve. A main roller sleeve is movably installed outside the main shaft sleeve. A shaft is provided inside the slide frame. A washer is provided on the shaft. A nut for pressing the washer is provided at the outer end of the shaft. A secondary shaft sleeve is installed outside the shaft. A secondary roller sleeve is movably installed outside the secondary shaft sleeve. A support leg is provided on the shaft.

[0009] There are eight main roller sleeves and eight auxiliary roller sleeves, which are used to adapt and clamp the passing steel sections and provide stabilizing support for the steel sections.

[0010] In a preferred embodiment, the present invention can be further configured such that: the fixed-point shifting mechanism further includes a main clamp and a secondary clamp, the top of the lifting slide is provided with a transverse groove, and the secondary clamp is fixedly installed on the inner wall of the transverse groove;

[0011] A first hydraulic component is movably installed between the secondary chuck and the main chuck;

[0012] The fixed-point repositioning mechanism also includes two sets of clamps fixedly installed on the top of the load-bearing plate, a second hydraulic component installed in the two sets of clamps, an end installed on the hydraulic sub-rod inside the second hydraulic component, a second guide rod set inside the load-bearing plate, and a flipping bracket movably installed outside the second guide rod.

[0013] One end of the flip bracket is movably mounted on the end cap.

[0014] In a preferred embodiment, the present invention may be further configured such that the guide support mechanism further includes a housing movably mounted inside the crossbeam, a clamp mounted on the top of the housing, a motor mounted inside the housing, a first gear mounted on the drive shaft inside the motor, and a chain connected to the first gear.

[0015] In a preferred embodiment, the present invention may be further configured such that the fixed-point repositioning mechanism further includes a second gear installed at the bottom end of the support column, and the other end of the chain is drivenly connected to the second gear.

[0016] In a preferred embodiment, the present invention can be further configured as follows: the steel profile width-adjusting mechanism includes two bases disposed on the top of the load-bearing plate and two positioning bolts disposed in the bases. The bases are provided with a sliding groove, and a truss is disposed in the sliding groove, a pad installed at the bottom of the truss, and four latches disposed on the truss.

[0017] The steel profile width-adjusting mechanism also includes eight inclined frames, with two inclined frames forming a group, and the four groups of inclined frames are respectively connected to four latches. The outer ends of the inclined frames are movably installed with adapters.

[0018] In a preferred embodiment, the present invention may be further configured such that the delivery mechanism further includes a limiting seat installed at the middle of the top surface of the two tracks, a support installed on the tracks, two studs disposed in the groove at the bottom of the tracks, a stabilizing crossbar disposed in the limiting seat and the support, two shims installed on the stabilizing crossbar, and two springs disposed on the stabilizing crossbar and located between the two shims.

[0019] In a preferred embodiment, the present invention may be further configured such that the delivery mechanism further includes a lock head movably mounted on and supported by the stabilizing crossbar, a traction frame movably mounted on the lock head, and the other end of the traction frame movably mounted on the support leg.

[0020] In a preferred embodiment, the present invention can be further configured such that: a slot is provided at the bottom end of the carriage, and a third guide rod is provided in the slot, while the stabilizing crossbar is adapted to pass through the insertion hole inside the carriage.

[0021] In a preferred embodiment, the present invention can be further configured such that: the outer wall of the lifting slide is provided with an annular groove, the outer side of the top of the bottom rail is provided with an arc groove, and the other end of the clamp is movably installed in the annular groove and the arc groove.

[0022] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0023] 1. This invention sets up an independent guiding support mechanism on the existing steel conveying system, and sets up a fixed-point shifting mechanism on the guiding support mechanism. With the fixed-point shifting mechanism working in conjunction with the steel section width adjustment mechanism and four sets of auxiliary conveying mechanisms to accurately clamp the steel section, the clamped steel section is rotated and lifted upward at the fixed point. When the steel section enters the next stage of the conveying equipment, it can be accurately delivered, thereby avoiding larger angular deviations after the steel section is guided to the next conveying system.

[0024] 2. This invention uses the guide support mechanism as a reference plane. When the positioning and shifting mechanism rotates along the guide support mechanism, the clamped steel section will be rotated and lifted by the device. The first hydraulic component is controlled to control the tilt angle adjustment of the load-bearing plate. Finally, the steel section, after being precisely positioned, can be placed into the conveying path of the next conveying system at a regular angle, thereby realizing the adjustment of the angle of the steel section in the next conveying system.

[0025] 3. The present invention sets up a steel profile width-adapting mechanism and four sets of auxiliary conveying mechanisms on the steel profile width-adapting mechanism. When the steel profile is accidentally overturned during transmission on the conveying equipment, the steel profile width-adapting mechanism controls the four sets of auxiliary conveying mechanisms to adapt the overturned steel, thereby adapting and clamping the steel profile that has overturned. Attached Figure Description

[0026] Figure 1This is a schematic diagram illustrating the use of the present invention;

[0027] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the guide support mechanism of the present invention;

[0029] Figure 4 This is a schematic diagram of the fixed-point repositioning mechanism of the present invention;

[0030] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 This is an exploded view of the steel profile width adjustment mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the delivery mechanism of the present invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged diagram of point B in the middle.

[0034] Figure label:

[0035] 100. Guide support mechanism; 110. Crossbeam; 120. Base; 130. Bottom rail; 140. Chassis; 150. Clamp; 160. Motor; 170. First gear; 180. Chain;

[0036] 200. Fixed-point transposition mechanism; 210. Support column; 220. Second gear; 230. First guide rod; 240. Load-bearing plate; 250. Main chuck; 2501. Secondary chuck; 2502. First hydraulic component; 260. Lifting slide; 270. Clamping piece; 280. Second hydraulic component; 2801. End; 2802. Tilting bracket; 290. Second guide rod;

[0037] 300. Steel section width adjustment mechanism; 310. Base; 320. Slide groove; 330. Truss; 340. Pad; 350. Lock; 360. Diagonal frame; 370. Adapter; 380. Positioning bolt;

[0038] 400. Conveying mechanism; 410. Track; 4101. Slide rail; 4102. Support; 4103. Stud; 4104. Limiting seat; 420. Stabilizing crossbar; 430. Shim; 440. Spring; 450. Lock head; 460. Traction frame; 470. Slide carriage; 4701. Third guide rod; 4702. Main bushing; 4703. Main roller sleeve; 4704. Second spring; 480. Shaft; 4801. Secondary bushing; 4802. Secondary roller sleeve; 4803. Support leg; 4804. Washer ring; 4805. Nut. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0040] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0041] The following describes, with reference to the accompanying drawings, some embodiments of a forklift mast steel directional guiding device provided by the present invention.

[0042] Example 1:

[0043] Combination Figures 1 to 8 As shown, the present invention provides a forklift mast steel section directional guiding device, including a guide support mechanism 100, a fixed-point shifting mechanism 200 disposed on the guide support mechanism 100, a steel section width adjustment mechanism 300 disposed on the fixed-point shifting mechanism 200, and four sets of auxiliary conveying mechanisms 400 disposed on the steel section width adjustment mechanism 300. The guide support mechanism 100 is used to provide a stable rotation support platform for the fixed-point shifting mechanism 200. The fixed-point shifting mechanism 200 is used to provide an effective rotation platform for the steel section width adjustment mechanism 300 and the four sets of auxiliary conveying mechanisms 400, and to deliver the clamped steel section at an angle. The steel section width adjustment mechanism 300 is used to clamp the steel section at an appropriate width. The four sets of auxiliary conveying mechanisms 400 are used to provide stabilization protection for the steel section.

[0044] The guide support mechanism 100 includes a crossbeam 110, a base 120 installed inside the crossbeam 110, a bottom rail 130 installed inside the base 120, a housing 140 movably installed inside the crossbeam 110, a clamp 150 installed at the top of the housing 140, a motor 160 installed inside the housing 140, a first gear 170 installed on the drive shaft inside the motor 160, and a chain 180 connected to the first gear 170 for transmission.

[0045] The fixed-point shifting mechanism 200 is movably installed inside the base 120 with a support column 210, a lifting slide 260 installed at the top of the support column 210, and the lifting slide 260 is set on the bottom rail 130. The first guide rod 230 is set at the top of the support column 210 and the load-bearing plate 240 is movably installed outside the first guide rod 230. It is used to rotate and lift the clamped steel to facilitate the directional guidance of the steel.

[0046] The steel profile width-adjusting mechanism 300 is mounted on the load-bearing plate 240 to provide effective support for the four sets of auxiliary conveying mechanisms 400.

[0047] Two sets of feeding mechanisms 400 are set at the first end of the load-bearing plate 240, and the other two sets of feeding mechanisms 400 are set at the tail end of the load-bearing plate 240, for adapting and clamping both ends of the steel section.

[0048] The conveying mechanism 400 includes two tracks 410, and each track 410 has a slide rail 4101 inside. A carriage 470 is movably installed inside the slide rail 4101. A main bushing 4702 is provided at the top of the carriage 470. A second spring 4704 is provided inside the main bushing 4702. A main roller sleeve 4703 is movably installed outside the main bushing 4702. A shaft 480 is provided inside the carriage 470. A washer 4804 is provided on the shaft 480. A nut 4805 for pressing the washer 4804 is provided at the outer end of the shaft 480. A secondary bushing 4801 is installed outside the shaft 480. A secondary roller sleeve 4802 is movably installed outside the secondary bushing 4801. The support leg 4803 is mounted on the upper part of the two rails 410. The limiting seat 4104 is installed in the middle of the top surface of the two rails 410. The support 4102 is installed on the rail 410. The two studs 4103 are set in the groove at the bottom of the rail 410. The stabilizing crossbar 420 is set in the limiting seat 4104 and the support 4102. The two washers 430 are installed on the stabilizing crossbar 420. The two springs 440 are set on the stabilizing crossbar 420 and located between the two washers 430. The lock head 450 is movably installed on the stabilizing crossbar 420 and supported by the stabilizing crossbar 420. The traction frame 460 is movably installed on the lock head 450, and the other end of the traction frame 460 is movably installed on the support leg 4803.

[0049] The bottom end of the carriage 470 is provided with a slot, and a third guide rod 4701 is provided in the slot, while the stabilizing crossbar 420 is adapted to pass through the insertion hole inside the carriage 470.

[0050] There are eight main roller sleeves 4703 and eight auxiliary roller sleeves 4802, which are used to adapt and clamp the passing steel sections and provide stabilizing support for the steel sections.

[0051] When the steel section is conveyed by the conveying equipment, as the steel section enters the gap between the eight auxiliary roller sleeves 4802 and the eight main roller sleeves 4703, the U-shaped gap formed by the eight main roller sleeves 4703 and the eight auxiliary roller sleeves 4802 can fit and clamp the steel section, so that the steel section can be effectively constrained before entering the directional guide.

[0052] The motor 160 is started, and its internal transmission shaft, in conjunction with the first gear 170, drives the chain 180. The chain 180 then drives the second gear 220 and the support column 210. Finally, the support column 210 and the fixed lifting slide 260 rotate along the top of the bottom rail 130. At this time, the lifting slide 260 rotates and rises along the top of the bottom rail 130. After the lifting slide 260 rotates 90 degrees, the load-bearing plate 240 supported by the support column 210 rotates and rises. Finally, the flipped steel section can be transferred to the next conveying platform. After the steel section is guided in different directions, the load-bearing plate 240 is tilted along the first guide rod 230. The clamped steel section can then be accurately placed onto the next conveying equipment, thereby avoiding angle differences after the steel section is transferred.

[0053] Example 2:

[0054] Combination Figures 2 to 5 As shown, based on Embodiment 1, the fixed-point switching mechanism 200 further includes a main chuck 250 and a secondary chuck 2501. A horizontal groove is provided at the top of the lifting slide 260, and the secondary chuck 2501 is fixedly installed on the inner wall of the horizontal groove.

[0055] A first hydraulic component 2502 is movably installed between the secondary chuck 2501 and the main chuck 250;

[0056] The fixed-point repositioning mechanism 200 also includes two sets of clamps 270 fixedly installed on the top of the load-bearing plate 240, a second hydraulic component 280 installed in the two sets of clamps 270, an end 2801 installed on the hydraulic sub-rod in the second hydraulic component 280, a second guide rod 290 set in the load-bearing plate 240, and a flipping bracket 2802 movably installed outside the second guide rod 290.

[0057] One end of the flip bracket 2802 is movably mounted on the end 2801.

[0058] The second gear 220 is installed at the bottom of the support column 210, and the other end of the chain 180 is connected to the second gear 220 for transmission.

[0059] The outer wall of the lifting slide 260 is provided with an annular groove, the outer side of the top of the bottom rail 130 is provided with an arc groove, and the other end of the clamp 150 is movably installed in the annular groove and the arc groove.

[0060] After the second gear 220 is driven, the combined second gear 220 and support column 210 will rotate at a constant speed along the base 120. The lifting slide 260 will rotate and lift along the top of the bottom rail 130. After the first hydraulic component 2502 is operated, its internal hydraulic rod extends outward to push the main chuck 250 upward. The end of the load-bearing plate 240 away from the main chuck 250 will move closer to the crossbeam 110 and tilt.

[0061] When the hydraulic rod inside the first hydraulic component 2502 retracts inward, the end of the traction bearing plate 240 near the main clamp 250 will be stretched toward the crossbeam 110. This process allows for selective delivery of the clamped steel to the next conveying device.

[0062] When the lifting slide 260 rotates and rises, the support column 210 and the second gear 220 will also rise. At the same time, the clamp 150, which is movably installed in the annular groove on the outer wall of the lifting slide 260, will also drive the housing 140 and the motor 160 to rise synchronously, thereby ensuring that the chain 180 maintains an effective transmission connection with the first gear 170 and the second gear 220.

[0063] Example 3:

[0064] Combination Figures 6 to 8 As shown, based on Embodiment 1, the steel profile width-adjusting mechanism 300 includes two bases 310 disposed on the top of the load-bearing plate 240 and two positioning bolts 380 disposed in the bases 310. The bases 310 have a sliding groove 320 inside, and a truss 330 is disposed in the sliding groove 320. A pad 340 is installed at the bottom of the truss 330 and four latches 350 are disposed on the truss 330.

[0065] The steel profile width-adjusting mechanism 300 also includes eight inclined frames 360, with two inclined frames 360 forming a group, and four groups of inclined frames 360 connected to four latches 350 respectively. An adapter 370 is movably installed on the outer end of the inclined frame 360.

[0066] Preferably, the latch 350 can be fixed to the truss 330 by bolts, and the diagonal frame 360 ​​consists of two pads and two end rods, one end rod is movably installed in the latch 350, and the other end rod is movably installed in the adapter 370;

[0067] When the inclined frame 360 ​​is pressed and pushes the adapter 370, the adapter 370 will control the third guide rod 4701 and the slide 470 to move laterally along the slide 4101 until the two adjacent slides 470 adapt and clamp the flipped steel section. When the two slides 470 extend outward, the lock head 450 and the traction frame 460, which are limited by the pad 430, will limit the support leg 4803 and the shaft 480. At this time, the wider side of the steel section can be effectively supported by the main roller sleeve 4703 and the auxiliary roller sleeve 4802.

[0068] The working principle and usage process of this invention: The crossbeam 110 is fixedly installed on the steel conveying platform in advance using bolts, and this device, together with the conveying device, forms a continuous feeding system;

[0069] According to the dimensions of the steel profile, the second hydraulic component 280 is pre-operated. As the hydraulic rod inside the second hydraulic component 280 extends outward, the end 2801 installed at the outer end of the hydraulic rod will push the flipping bracket 2802 to flip. The other end of the flipping bracket 2802 will push the pad 340 and the truss 330 to lift upward. At this time, the four latches 350 set on the truss 330 will apply an outward expansion force to the multiple evenly distributed inclined frames 360. The slide 470 connected to the adapter 370 will extend outward along the slide rail 4101. At this time, the four symmetrically distributed sets of slides 470 can be adapted and adjusted to fit the wider steel profile.

[0070] When it is necessary to adapt to narrower steel sections, simply operate the second hydraulic component 280 until its internal hydraulic sub-rod retracts;

[0071] As the steel section enters the gap formed by the eight auxiliary roller sleeves 4802 and the eight main roller sleeves 4703, it will be limited and supported without power. At this time, the motor 160 can be operated. When the transmission shaft inside the motor 160 engages with the first gear 170 to drive the chain 180, the other end of the chain 180 will drive the second gear 220 and the support column 210. The lifting slide 260 installed on the top of the support column 210 will then swing along the bottom rail 130, ultimately lifting the slide. 260 will rise along the track inside the bottom rail 130. At the same time, the chassis 140, which is fixed by the bottom rail 130, will also drive the motor 160, the first gear 170 and the chain 180 to rise simultaneously. After rising, the lifting slide 260 will also lift the load-bearing plate 240, the steel profile width adjustment mechanism 300 and the conveying mechanism 400 upward. Finally, the load-bearing plate 240 and the crossbeam 110 form a 90-degree angle, and the clamped steel profile can be rotated and raised from the initial position.

[0072] After the steel section is rotated and raised, according to the feeding requirements of the higher-position conveying platform, the first hydraulic component 2502 can be used to control the tilting angle of the load-bearing plate 240 along the top of the support column 210 until the tilting angle of the load-bearing plate 240 is just right to meet the natural sliding of the steel section. In addition, during the rotation and raising of the steel section, the steel section held by the four sets of auxiliary conveying mechanisms 400 can be discharged at multiple angles as needed. After the steel section is transferred, the support column 210 is continuously driven, and the lifting slide 260 fixed at the top of the support column 210 will rotate along the top of the bottom rail 130. Finally, the height of the load-bearing plate 240 will return to the initial state, which facilitates the wind direction guidance of the subsequent steel section.

[0073] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A forklift mast profile steel diverging guide device, comprising a guide support mechanism (100), characterized in that, It also includes a fixed-point shifting mechanism (200) installed on the guide support mechanism (100), a steel profile width-adjusting mechanism (300) installed on the fixed-point shifting mechanism (200), and four sets of auxiliary conveying mechanisms (400) installed on the steel profile width-adjusting mechanism (300). The guide support mechanism (100) includes a crossbeam (110), a base (120) installed inside the crossbeam (110), and a bottom rail (130) installed inside the base (120). The fixed-point repositioning mechanism (200) includes a support column (210) movably installed inside the base (120), a lifting slide (260) installed at the top of the support column (210) and the lifting slide (260) is set on the bottom rail (130), a first guide rod (230) set at the top of the support column (210) and a load-bearing plate (240) movably installed outside the first guide rod (230). The steel profile width-adjusting mechanism (300) is mounted on the load-bearing plate (240) to provide effective support for the four sets of delivery mechanisms (400); Two sets of conveying mechanisms (400) are located at the front end of the load-bearing plate (240), and the other two sets of conveying mechanisms (400) are located at the rear end of the load-bearing plate (240). The steel profile width-adjusting mechanism (300) includes two bases (310) set on the top of the load-bearing plate (240) and two positioning bolts (380) set in the bases (310). The bases (310) have a groove (320) inside, and a truss (330) is set in the groove (320), a pad (340) installed at the bottom of the truss (330), and four latches (350) set on the truss (330). The steel profile width-adjusting mechanism (300) also includes eight inclined frames (360), with two inclined frames (360) forming a group, and four groups of inclined frames (360) respectively connected to four latches (350). The outer end of the inclined frame (360) is movably installed with an adapter (370). The conveying mechanism (400) includes two tracks (410), with a slide rail (4101) inside the track (4101). A slide frame (470) is movably installed inside the slide rail (4101). A main shaft sleeve (4702) is provided at the top of the slide frame (470). A second spring (4704) is provided inside the main shaft sleeve (4702). A main roller sleeve (4703) is movably installed outside the main shaft sleeve (4702). A shaft (480) is provided inside the slide frame (470). A washer (4804) is provided on the shaft (480). A nut (4805) for pressing the washer (4804) is provided at the outer end of the shaft (480). A secondary shaft sleeve (4801) is installed outside the shaft (480). A secondary roller sleeve (4802) is movably installed outside the secondary shaft sleeve (4801). A support leg (4803) is provided on the shaft (480). The number of main roller sleeves (4703) and auxiliary roller sleeves (4802) are both eight, which are used to adapt and clamp the passing steel sections.

2. The fork truck mast section guide of claim 1 wherein, The guide support mechanism (100) also includes a housing (140) movably installed inside the crossbeam (110), a clamp (150) installed on the top of the housing (140), a motor (160) installed inside the housing (140), a first gear (170) installed on the drive shaft inside the motor (160), and a chain (180) connected to the first gear (170).

3. The forklift mast steel directional guiding device according to claim 1, characterized in that, The fixed-point shifting mechanism (200) also includes a main chuck (250) and a secondary chuck (2501). The top of the lifting slide (260) is provided with a transverse groove, and the secondary chuck (2501) is fixedly installed on the inner wall of the transverse groove. A first hydraulic component (2502) is movably installed between the secondary chuck (2501) and the main chuck (250); The fixed-point repositioning mechanism (200) also includes two sets of clamps (270) fixedly installed on the top of the load-bearing plate (240), a second hydraulic component (280) installed in the two sets of clamps (270), an end (2801) installed on the hydraulic sub-rod inside the second hydraulic component (280), a second guide rod (290) set in the load-bearing plate (240), and a flipping bracket (2802) movably installed outside the second guide rod (290). One end of the flip bracket (2802) is movably mounted on the end (2801).

4. The forklift mast steel directional guiding device according to claim 2, characterized in that, The fixed-point shifting mechanism (200) also includes a second gear (220) installed at the bottom of the support column (210), and the other end of the chain (180) is connected to the second gear (220) for transmission.

5. A forklift mast steel directional guiding device according to claim 1, characterized in that, The delivery mechanism (400) also includes a limiting seat (4104) installed in the middle of the top surface of the two rails (410), a support (4102) installed on the rails (410), two studs (4103) set in the groove at the bottom of the rails (410), a stabilizing crossbar (420) set in the limiting seat (4104) and the support (4102), two washers (430) installed on the stabilizing crossbar (420), and two springs (440) set on the stabilizing crossbar (420) and located between the two washers (430).

6. A forklift mast steel directional guiding device according to claim 5, characterized in that, The delivery mechanism (400) also includes a lock head (450) movably mounted on and supported by the stabilizing crossbar (420), a traction frame (460) movably mounted on the lock head (450), and the other end of the traction frame (460) movably mounted on the outrigger (4803).

7. A forklift mast steel directional guiding device according to claim 5, characterized in that, The bottom end of the slide (470) is provided with a slot, and a third guide rod (4701) is provided in the slot. The stabilizing crossbar (420) is adapted to pass through the insertion hole inside the slide (470).

8. A forklift mast steel directional guiding device according to claim 2, characterized in that, The outer wall of the lifting slide (260) is provided with an annular groove, and the outer side of the top of the bottom rail (130) is provided with an arc groove. The other end of the clamp (150) is movably installed in the annular groove and the arc groove.