An automatic feeding and discharging device for hydraulic support oil cylinder body spraying line

By designing an automatic loading and unloading device for the hydraulic support cylinder body spraying line, the device utilizes a jack mechanism and V-shaped rollers to achieve automated loading and unloading of multiple cylinder bodies, solving the problems of low efficiency and poor production flexibility in existing technologies, and improving production efficiency and flexibility.

CN224358671UActive Publication Date: 2026-06-16ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing hydraulic support cylinder body spraying line has low efficiency in loading and unloading parts. When the overhead crane lifts the workpiece, it affects the production cycle and relies on manual operation, resulting in poor production flexibility.

Method used

Design an automatic loading and unloading device for a hydraulic support cylinder body spraying line, including a base frame, a translation frame, a flipping frame and a lifting frame. The device uses a jack mechanism to realize the automated loading and unloading of multiple cylinder bodies, and combines V-shaped rollers to reduce friction damage.

🎯Benefits of technology

The system enables automated multi-part loading and unloading of hydraulic cylinder bodies, shortening production time, improving production efficiency, reducing reliance on worker skills, and enhancing production flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

A hydraulic support oil cylinder body spraying line automatic up and down device, including the frame, the translation frame, the turnover frame and the lifting frame, the frame slide rail is provided on the frame, the translation frame is slidably arranged on the frame slide rail through the translation mechanism, the turnover frame is arranged on the translation frame and the front end of the turnover frame is hinged on the translation frame, the turnover frame is realized turnover through the turnover mechanism, the lifting slide rail is arranged on the turnover frame, the lifting frame is slidably arranged on the lifting slide rail through the lifting mechanism, a plurality of left and right interval arranged clamping grooves are arranged on the lifting frame, each clamping groove can be connected with a lifting appliance, one end of the lifting appliance can hoist the oil cylinder body, and the other end can be hung on the cylinder body spraying line, the utility model can simultaneously up and down the oil cylinder body, degree of automation is high, production rhythm is fast, efficiency is high, and production flexibility is good.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic support cylinder body spraying technology, specifically, to an automatic loading and unloading device for a hydraulic support cylinder body spraying line. Background Technology

[0002] In the production process of hydraulic support cylinder body spraying, the current common method for loading and unloading cylinder bodies on the spraying line is as follows: Before loading, prepare by finding a cylinder head plug that matches the cylinder's inner diameter. Manually insert the plug into the cylinder head. The plug has two lifting rings on its surface. Tighten the plug manually with a wrench. Then, connect the hook device to the two lifting rings on the plug via a pin. When the cylinder's inner diameter is > φ400mm, a KBK or other lifting mechanism is required when installing the plug. After all cylinder head plugs are installed, manually operate an overhead crane to lift the hook device to the designated height. Fine-tune the crane position so that the hook device engages with the workpiece suspension position on the spraying line's accumulation chain. Then, gradually hang all the lifted cylinder bodies on the workpiece suspension position on the spraying line's accumulation chain using the hook device. Loading is complete. Unloading is the reverse of loading.

[0003] The existing technical solutions have the following problems:

[0004] (1) When the overhead crane lifts workpieces, all workstations share one overhead crane, which affects the production cycle. Moreover, the overhead crane can only lift one workpiece at a time, which is extremely inefficient.

[0005] (2) When the workpiece is suspended and accumulated, it is necessary to rely on manual operation of the overhead crane for micro-operation, which tests the skill level of the workers, is not convenient for personnel adjustment, and has poor production flexibility. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic loading and unloading device for a hydraulic support cylinder body spraying line.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an automatic loading and unloading device for a hydraulic support cylinder body spraying line, comprising a base frame, a translation frame, a tilting frame, and a lifting frame; a base frame slide rail is horizontally arranged on the base frame along the front-to-back direction, and the translation frame is slidably mounted on the base frame slide rail via a translation mechanism; the tilting frame is mounted on the translation frame and its front end is hinged to the translation frame, and the tilting frame can be tilted on the translation frame around its hinge position via a tilting mechanism, thereby achieving both horizontal and vertical tilting of the tilting frame. The system allows for the transition between different states. A lifting slide rail is horizontally arranged along the front-to-back direction on the flipping frame. The lifting frame can slide back and forth on the lifting slide rail via a lifting mechanism. The lifting frame has several slots spaced apart on the left and right sides. Each slot can engage with a lifting device. One end of the lifting device can connect to a cylinder plug installed in the cylinder bore of the cylinder body to lift the cylinder body, and the other end can be suspended on the cylinder body spraying line, thereby suspending the cylinder body on the cylinder body spraying line. When the flipping frame is vertical, the lifting frame can lift or lower multiple cylinder bodies at once through each slot and the corresponding lifting device.

[0008] Based on the above, the translation mechanism includes a push jack, which is arranged in the front-to-back direction. One end of the push jack is connected to the base frame and the other end is connected to the translation frame. The translation frame is provided with a translation slider that is slidably connected to the base frame slide rail. The extension and retraction of the push jack can allow the translation frame to move on the base frame slide rail via the translation slider.

[0009] Based on the above, the flipping mechanism includes a flipping jack, the two ends of which are respectively hinged to the translation frame and the flipping frame. The extension and retraction of the flipping jack can cause the flipping frame to flip around its hinge position with the translation frame by 0 to 90 degrees.

[0010] Based on the above, the lifting mechanism includes a lifting jack, which is arranged in the front-to-back direction. One end of the lifting jack is connected to the tilting frame and the other end is connected to the lifting frame. The lifting frame is provided with a lifting slider that is slidably connected to the lifting rail. The extension and retraction of the lifting jack allows the lifting frame to move on the lifting rail via the lifting slider. When the tilting frame is vertical, the lifting frame moves up and down under the action of the lifting jack.

[0011] Based on the above, the tilting frame is equipped with several rows of V-shaped rollers for supporting the cylinder body, and the central axis of the V-shaped rollers is horizontally arranged in the left and right directions.

[0012] Based on the above, a support frame is also provided on the base frame, and the flipping frame can be supported on the support frame when it is horizontal.

[0013] Based on the above, the cylinder block spraying line is an accumulation chain conveyor line consisting of a conveying track, a traction chain, and various lifting rings slidably connected on the conveying track. The conveying track is arranged along the powder spraying path through a suspension frame, and each of the lifting rings is driven by the traction chain. The distance between two adjacent lifting rings is the same as the distance between two adjacent slots.

[0014] Based on the above, the lifting device includes a lifting rod, with hooks at both ends. A limit chuck is provided on the lifting rod, and the lifting rod can be engaged in the chuck groove so that the limit chuck can be engaged on the rear side of the chuck groove, so that when the tilting frame is vertical, the limit chuck can be hung on the lifting frame; one of the hooks is used to hook onto a corresponding lifting ring, and the other hook is used to connect with a cylinder port plug hook installed in the cylinder port of the hydraulic cylinder body, thereby lifting the hydraulic cylinder body onto the corresponding lifting ring.

[0015] This invention represents a substantial advancement over existing technologies. Specifically, it enables the simultaneous loading and unloading of multiple hydraulic cylinder bodies via the slots on the lifting frame. The coordinated movement of the translation frame, the tilting frame, and the lifting frame facilitates automatic loading and unloading of the cylinder bodies, significantly reducing the loading and unloading time for multiple cylinder bodies, resulting in faster production cycles and higher efficiency. Except for placing the cylinder bodies on the tilting frame and tightening the cylinder plugs, the entire process is automated, requiring minimal manual operation skills and offering high production flexibility.

[0016] Furthermore, the flipping frame is equipped with V-shaped rollers, which enable rolling friction between the cylinder body surface of the oil cylinder after the part has been sprayed and the flipping frame through the V-shaped rollers. The friction is small, which effectively protects the painted surface, reduces bumps and damage, ensures paint quality, and reduces the amount of touch-up work for workers. Attached Figure Description

[0017] Figure 1 This is the axial view of the present invention. Figure 1 The flip frame is in a horizontal position.

[0018] Figure 2 This is the right-side view of the utility model. Figure 1 The flip frame is in a horizontal position.

[0019] Figure 3 This is the axial view of the present invention. Figure 2 The flip frame is in a vertical position.

[0020] Figure 4 This is the right-side view of the utility model. Figure 2 The flip frame is in a vertical position.

[0021] In the diagram: 1. Base frame; 2. Translation frame; 3. Tilting frame; 4. Lifting frame; 5. Base frame slide rail; 6. Lifting slide rail; 7. Slot; 8. Cylinder plug; 9. Push jack; 10. Tilting jack; 11. Lifting jack; 12. V-roller; 13. Support frame; 14. Lifting ring; 15. Suspension frame; 16. Lifting rod; 17. Lifting hook; 18. Limit chuck; 19. Hydraulic cylinder body. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0023] The diagram only shows the cylinder body of one hydraulic cylinder.

[0024] like Figures 1-4 As shown, an automatic loading and unloading device for a hydraulic support cylinder body spraying line includes a base frame 1, a translation frame 2, a tilting frame 3, and a lifting frame 4. A base frame slide rail 5 is horizontally arranged on the base frame 1 along the front-to-back direction. The translation frame 2 is slidably mounted on the base frame slide rail 5 via a translation mechanism. The tilting frame 3 is mounted on the translation frame 2, and its front end is hinged to the translation frame 2. The tilting frame 3 can be tilted on the translation frame 2 around its hinge position via a tilting mechanism, thereby achieving the conversion between horizontal and vertical states. A lifting slide rail 6 is horizontally arranged on the frame 3 along the front-to-back direction. The lifting frame 4 can be slidably mounted on the lifting slide rail 6 via a lifting mechanism. The lifting frame 4 is provided with five slots 7 arranged at intervals on the left and right. Each slot 7 can be engaged with a lifting device. One end of the lifting device can be connected to the cylinder port plug 8 installed in the cylinder port of the cylinder body 19 to lift the cylinder body 19, and the other end can be suspended on the cylinder body spraying line, thereby lifting the cylinder body 19 onto the cylinder body spraying line. When the flipping frame 3 is vertical, the lifting frame 4 can lift or lower all five cylinder bodies 19 at once through each slot 7 and the corresponding lifting device.

[0025] The translation mechanism includes a push jack 9, which is arranged in the front-to-back direction. One end of the push jack 9 is connected to the base frame 1, and the other end is connected to the translation frame 2. The translation frame 2 is provided with a translation slider that is slidably connected to the base frame slide rail 5. The extension and retraction of the push jack 9 can allow the translation frame 2 to move on the base frame slide rail 5 via the translation slider.

[0026] The flipping mechanism includes a flipping jack 10, the two ends of which are respectively hinged to the translation frame 2 and the flipping frame 3. The extension and retraction of the flipping jack 10 can cause the flipping frame 3 to flip 0 to 90° around its hinge position with the translation frame 2.

[0027] The lifting mechanism includes a lifting jack 11, which is arranged in the front-to-back direction. One end of the lifting jack 11 is connected to the tilting frame 3, and the other end is connected to the lifting frame 4. The lifting frame 4 is provided with a lifting slider that is slidably connected to the lifting rail 6. The extension and retraction of the lifting jack 11 allows the lifting frame 4 to move on the lifting rail 6 via the lifting slider. When the tilting frame 3 is vertical, the lifting frame 4 moves up and down under the action of the lifting jack 11.

[0028] The tilting frame 3 is equipped with several rows of V-shaped rollers 12 for supporting the cylinder body 19. The central axis of the V-shaped rollers 12 is horizontally arranged in the left-right direction. The V-shaped rollers 12 enable rolling friction between the surface of the cylinder body 19 after the part has been painted and the tilting frame 3. The friction is small, which effectively protects the painted surface, reduces bumps and damage, ensures paint quality, and reduces the amount of touch-up work for workers.

[0029] The base frame 1 is also provided with a support frame 13. When the tilting frame 3 is horizontal, it can be supported on the support frame 13, which reduces the force on the tilting jack 10 after it is retracted and improves the service life of the tilting jack 10.

[0030] The cylinder coating line is an accumulation chain conveyor line consisting of a conveyor rail, a traction chain, and various lifting rings 14 slidably connected on the conveyor rail. The conveyor rail is arranged along the powder coating path through a suspension frame 15. Each of the lifting rings 14 is driven by the traction chain. The distance between two adjacent lifting rings 14 is the same as the distance between two adjacent slots 7.

[0031] The lifting device includes a lifting rod 16, with hooks 17 at both ends. A limiting chuck 18 is mounted on the lifting rod 16, and the lifting rod 16 can be engaged in a slot 7 so that the limiting chuck 18 can be engaged on the rear side of the slot 7. This allows the limiting chuck 18 to be hung on the lifting frame 4 when the tilting frame 3 is vertical. One hook 17 is used to hook onto a corresponding lifting ring 14, and the other hook 17 is used to hook onto a cylinder plug 8 installed in the cylinder port of the cylinder body 19, thereby suspending the cylinder body 19 onto the corresponding lifting ring 14. When the limiting chuck 18 is hung on the lifting frame 4, under the weight of the cylinder body 19, there is a certain pressure and friction between the limiting chuck 18 and the lifting frame 4, ensuring that the limiting chuck 18 will not slide and detach from the lifting frame 4.

[0032] The loading process of this utility model is as follows: Initially, both the flipping frame 3 and the lifting frame 4 are in a horizontal state. First, place the five cylinder bodies 19 with cylinder plugs 8 installed on each of the V-shaped rollers 12 on the flipping frame 3, and align the five cylinder bodies 19 with the five slots 7 one-to-one, with the cylinder plugs 8 facing the slots 7. Then, insert the five lifting rods 16 into the five slots 7 respectively, so that the hooks 17 at the front end of each lifting rod 16 hook and connect to the cylinder plugs 8 on each cylinder body 19 (the cylinder plugs 8 have hanging rings that cooperate with the hooks 17). At the same time, the limiting chucks 18 on each lifting rod 16 are engaged in the slots 7. On the rear side, prepare to load the workpiece; during loading, the tilting jack 10 extends, causing the tilting frame 3 to tilt 90° to a vertical position and stop. At this time, each hydraulic cylinder body 19 slides down along each of the V-shaped rollers 12 on the tilting frame 3 under the action of gravity, thereby driving each of the corresponding lifting rods 16 to move downward, so that the limiting chucks 18 on each of the corresponding lifting rods 16 are hooked on each of the lifting frames 4, restricting each hydraulic cylinder body 19 from sliding down. The hooks 17 at the front end of each of the lifting rods 16 are at the lower end, suspending each hydraulic cylinder body 19, ensuring that when the tilting frame 3 is tilted to a vertical position, each hydraulic cylinder body 19 can be suspended in the air on the lifting frame. 4. The hooks 17 at the rear ends of each of the lifting rods 16 are at the upper end; then, the lifting frame 4 is driven to rise by the lifting jack 11 until the hooks 17 at the upper ends of each of the lifting rods 16 are flush with the corresponding lifting rings 14 on the cylinder body spraying line, and the hooks 17 at the upper ends of each of the lifting rods 16 are behind the corresponding lifting rings 14 on the cylinder body spraying line. Next, the pushing jack 9 extends to move the translation frame 2 on the base frame slide rail 5 through the translation slider, so that the hooks 17 at the upper ends of each of the lifting rods 16 enter the corresponding lifting rings 14 on the cylinder body spraying line. Then, the lifting jack 11 retracts to move the lifting frame 4 through the lifting slider. The cylinder body descends along the lifting slide rail 6, causing the hooks 17 at the other end of each of the lifting rods 16 to hook onto the corresponding lifting rings 14 on the cylinder body spraying line. The lifting jack 11 continues to retract, causing the lifting frame 4 to continue to descend, causing each of the slots 7 to disengage from the limiting chucks 18 on each of the lifting rods 16. At this point, the five cylinder bodies 19 are suspended on the cylinder body spraying line. Then, the pushing jack 9 retracts, causing the translation frame 2 to move the tilting frame 3 and the lifting frame 4 away from each cylinder body 19 as a whole, avoiding collisions between the cylinder bodies 19 and the tilting frame 3 and the lifting frame 4 when they move on the cylinder body spraying line later. The loading is then complete.

[0033] The unloading process of this utility model is as follows: After the loading is completed, the flipping frame 3 is still in a vertical state. The five-piece set of lifting rings 14 on the cylinder body spraying line moves the five sprayed cylinder bodies 19 to the loading position and stops. The pushing jack 9 extends, causing the translation frame 2 to drive the flipping frame 3 and the lifting frame 4 to move closer to the five sprayed cylinder bodies 19. At the same time, the lifting rods 16 of the sprayed cylinder bodies 19 are respectively engaged in the corresponding slots 7 on the lifting frame 4. When the V-shaped rollers 12 on the flipping frame 3 contact the surface of the cylinder body 19, the pushing jack 9 stops extending. Then, the lifting jack 11 extends, causing the lifting frame 4 to rise until the lifting frame 4 is in contact with the limiting clips on the lifting rods 16. When the disc 18 contacts, the lifting frame 4 continues to rise, which in turn drives the limiting chucks 18 on each of the lifting rods 16 to rise, causing each of the lifting rods 16 to drive each of the painted cylinder bodies 19 to rise along the V-shaped rollers 12 until the hooks 17 at the upper end of each of the lifting rods 16 disengage from the lifting rings 14 on the cylinder body painting line. Then, the pushing jack 9 retracts, causing the translation frame 2 to drive the tilting frame 3, the lifting frame 4, and each of the painted cylinder bodies 19 away from the cylinder body painting line. Then, the tilting jack 10 retracts, causing the tilting frame 3 to tilt to a horizontal position. Each of the painted cylinder bodies 19 tilts to a horizontal position along with the tilting frame 3, and each of the painted cylinder bodies 19 is removed from the tilting frame 3 and transferred to the workpiece storage area, completing the unloading process.

[0034] This invention enables the simultaneous loading and unloading of five hydraulic cylinder bodies 19. By setting the movement distances of the translation frame 2, the tilting frame 3, and the lifting frame 4, the hydraulic cylinder bodies 19 can be automatically loaded and unloaded, reducing the loading and unloading time from 10 minutes to 2 minutes, thus increasing efficiency by 80%. Except for placing the hydraulic cylinder bodies 19 on the tilting frame 3 and tightening the cylinder plug 8, the entire process is automated, requiring no special manual operation skills and offering high production flexibility.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An automatic loading and unloading device for a hydraulic support cylinder body spraying line, characterized in that: The system includes a base frame, a sliding frame, a tilting frame, and a lifting frame. The base frame has horizontally arranged base frame rails along its front-to-back direction. The sliding frame is slidably mounted on the base frame rails via a sliding mechanism. The tilting frame is mounted on the sliding frame, with its front end hinged to the sliding frame. The tilting frame can be tilted around its hinged position on the sliding frame via a tilting mechanism, allowing it to switch between horizontal and vertical states. The tilting frame has horizontally arranged base frame rails along its front-to-back direction. Equipped with a lifting slide rail, the lifting frame can be slidably mounted on the lifting slide rail via a lifting mechanism. The lifting frame has several slots arranged at left and right intervals, each slot can engage with a lifting device. One end of the lifting device can be connected to a cylinder port plug installed in the cylinder port of the hydraulic cylinder to lift the hydraulic cylinder body, and the other end can be suspended on the cylinder body spraying line, thereby suspending the hydraulic cylinder body on the cylinder body spraying line. When the tilting frame is vertical, the lifting frame can lift or lower multiple hydraulic cylinder bodies at once through each slot and the corresponding lifting device.

2. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to claim 1, characterized in that: The translation mechanism includes a push jack, which is arranged in the front-to-back direction. One end of the push jack is connected to the base frame and the other end is connected to the translation frame. The translation frame is provided with a translation slider that is slidably connected to the base frame slide rail. The extension and retraction of the push jack can allow the translation frame to move on the base frame slide rail via the translation slider.

3. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to claim 1, characterized in that: The flipping mechanism includes a flipping jack, the two ends of which are respectively hinged to the translation frame and the flipping frame. The extension and retraction of the flipping jack can cause the flipping frame to flip around its hinge position with the translation frame by 0 to 90 degrees.

4. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to claim 1, characterized in that: The lifting mechanism includes a lifting jack, which is arranged in the front-to-back direction. One end of the lifting jack is connected to the tilting frame and the other end is connected to the lifting frame. The lifting frame is provided with a lifting slider that is slidably connected to the lifting rail. The extension and retraction of the lifting jack allows the lifting frame to move on the lifting rail via the lifting slider. When the tilting frame is vertical, the lifting frame moves up and down under the action of the lifting jack.

5. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to claim 1, characterized in that: The tilting frame is equipped with several rows of V-shaped rollers for supporting the cylinder body, and the central axis of the V-shaped rollers is set horizontally in the left and right direction.

6. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to claim 1, characterized in that: The base frame is also provided with a support frame, and the flipping frame can be supported on the support frame when it is horizontal.

7. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to any one of claims 1-6, characterized in that: The cylinder coating line is an accumulation chain conveyor line consisting of a conveyor rail, a traction chain, and various lifting rings slidably connected on the conveyor rail. The conveyor rail is arranged along the powder coating path through a suspension frame. Each of the lifting rings is driven by the traction chain, and the distance between two adjacent lifting rings is the same as the distance between two adjacent slots.

8. The automatic loading and unloading device for the hydraulic support cylinder body spraying line according to claim 7, characterized in that: The lifting device includes a lifting rod with hooks at both ends and a limiting chuck on the lifting rod. The lifting rod can be engaged in the chuck groove so that the limiting chuck can be engaged on the rear side of the groove, so that when the tilting frame is vertical, the limiting chuck can be hung on the lifting frame. One of the hooks is used to hook onto a corresponding lifting ring, and the other hook is used to connect with a cylinder port plug hook installed in the cylinder port of the hydraulic cylinder body, thereby lifting the hydraulic cylinder body onto the corresponding lifting ring.